CN1935285B - Venous catheter setter capable of drawing and detecting return blood - Google Patents

Venous catheter setter capable of drawing and detecting return blood Download PDF

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Publication number
CN1935285B
CN1935285B CN2006100746277A CN200610074627A CN1935285B CN 1935285 B CN1935285 B CN 1935285B CN 2006100746277 A CN2006100746277 A CN 2006100746277A CN 200610074627 A CN200610074627 A CN 200610074627A CN 1935285 B CN1935285 B CN 1935285B
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China
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sample test
needle body
pipe fitting
chamber
take
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CN2006100746277A
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Chinese (zh)
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CN1935285A (en
Inventor
许明正
黄明敏
许沛扬
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Individual
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Abstract

The present invention relates to an intravenous tube fixer capable of drawing and testing returned blood. It mainly includes a drawing-testing unit capable of producing suction action and a needle group. Said needle group has a needle body communicated with said drawing-testing unit, a tube seat which can be removably connected with said drawing-testing unit, and a flexible tube through which the needle body can be passed. Said invention also provides the concrete working principle and its operation method.

Description

Can take a sample test the intravenous catheter setting device of blood back
[technical field]
The present invention relates to a kind of intravenous catheter setting device, particularly relate to a kind of intravenous catheter setting device that can be used for implementing the blood back taken a sample test of infusion catheter setting in the blood vessel.
[background technology]
General clinical treatment; When patient is implemented in the blood vessel transfusion fluid infusion; Often by being arranged on endovascular transfusion catheter to continue the infusion infusion; Consult Fig. 1, this intravenous injection guiding device 10 consists predominantly of a needle stand 101, be connected with the belled catheter block 102 of this needle stand 101, with this catheter block 102 and a conduit 103 that the hollow flexible is curved, and is connected and passes a needle body 104 of this conduit 103 with this needle stand 101.
When medical personnel grip this needle stand 101; And puncture in the blood vessel of animal body with this needle body 104; Just can guide this conduit 103 intravasations, and can after this needle body 104 is extracted out, this conduit 103 be retained in the blood vessel; And, avoid animal body that uncomfortable sensation is arranged with the curved characteristic of these conduit 103 flexibles.
At this moment, the syringe (figure does not show) that this catheter block 102 can supply the transfer line (figure do not show) of drop or be filled with medicament connects, and carries out transfusion injection in the blood vessel, or the action of drawing blood with the syringe of sky.Only, though this intravenous injection guiding device 10 can be as the media of injection medicament or blood drawing, when reality is used, still there is following disappearance and needs to be resolved hurrily:
1. consult Fig. 2, behind these needle body 104 these conduit 103 intravasations of guiding, though can be by an open-work 105; Make blood extravasation to the gap of this conduit 103, reach the function of existing blood, correctly be set in this needle body 104 and this conduit 103 in the blood vessel to advise medical personnel with this needle body 104; But, the technological means of this open-work 105 is set on this needle body 104, make needle body 104 bendings of taper easily; Moreover; If when operation, this needle body 104 and this conduit 103 be whole section disappearance in subcutaneous tissue or blood vessel, will lose the function of existing blood.
2. importantly, emergency treatment patient or patient with severe symptoms mostly need set up earlier the venoclysis pipeline draw blood simultaneously detect after, just begin follow-up medicine or operative treatment; Therefore, because this syringe does not have the function of taking a sample test blood, and these needle body 104 suitable tapers; And fit with this conduit 103, so, when patient's blood pressure deficiency so that blood when oozing out (like emergency treatment sufferer, old age or pediatric patients) by this open-work 105; Or patient's target blood is indeterminate and need to survey property puncture (like fat, old age or female patient); Just can't declare fast and know whether this needle body 104 correctly is set in the blood vessel with this conduit 103, and the action of having to puncture repeatedly, when making operation cost, bothersome; Cause medical procedures particularly the emergency treatment patient cure the difficulty of striving for of prime time, or make patient's feels pain, uncomfortable.
And medical personnel smooth and easy for operation; Usually can after blood drawing or transfer line connection operation completion, distinctly collect, handle this needle body 104 and operation object again, make this needle body 104 can't avoid exposed situation; Therefore; As long as careless slightly, the anxiety of stabbing medical personnel will be arranged, even cause the danger of pain of injury fatal infection disease infection.In order to improve this needle body 104 exposed disappearances, have in addition on the market a kind of can pumpback and hide the intravenous injector of this needle body 104, only; Capable of retracting needle 104 intravenous injector; Often, add the function of not taking a sample test backflow blood, aforementioned the 2nd described problem still arranged because structure is complicated; Even general intravenous injection conduit guiding device 10 inconvenience more in operation; So, 19 days one October in 2004 envelope from the open letter of AMA's annual meeting, just explicitly call for manufacturer not stop the manufacturing of general intravenous injection guiding device 10.Obviously, general intravenous injection guiding device 10 and capable of retracting needle 104 intravenous injector in use, the disappearance that has safety and operation convenience to take into account.
[summary of the invention]
The object of the present invention is to provide a kind of with taking a sample test the intravenous catheter setting device that blood and intravenous infusion conduit are provided with the blood back taken a sample test of function.
Another object of the present invention is to provide a kind of intravenous catheter setting device of hiding the blood back taken a sample test of needle body with pumpback.
The present invention provides a kind of intravenous catheter setting device of taking a sample test blood back, and it is characterized in that: it comprises: one takes a sample test the unit, is stressed generation purt suction effect; And
One pin group has and takes a sample test the unit with this and be connected and be set in this and take a sample test a needle body outside the unit, take a sample test the banded catheter block in unit with this, and a flexible conduit that links and supply this needle body to pass with this catheter block.
The intravenous catheter setting device that the present invention also provides another kind can take a sample test blood back is characterized in that it comprises:
One socket has around an axis and defines a tube wall of a tube chamber, and a guide channel, and this tube wall has a port of export and an arrival end of reverse extension, and this guide channel is formed on this tube wall, and by the direction extension of this arrival end along this axis towards this port of export;
One needle body pumpback unit has a needle stand, and this needle stand is to be positioned in the tube chamber of contiguous this port of export of this socket, and has a protuberance that radially passes this socket guide channel, and this protuberance is to follow this guide channel to slide onto contiguous this arrival end along this tube chamber under external force;
One takes a sample test the unit, is to link and stressed generation purt suction effect with this needle stand protuberance; And
One pin group; Have and link with this needle stand and take a sample test a needle body that the unit is communicated with this, be nested with at this socket and this a needle stand catheter block of one wherein; And a flexible conduit that is connected and supplies this needle body to pass with this catheter block, this needle body is to slide onto contiguous this socket arrival end with this needle stand to be hidden in this socket.
Effect of the present invention is to promote efficient, convenience and the safety of bestowing when infusion tube is provided with in the blood vessel.
[description of drawings]
Fig. 1 is an axonometric chart, and general intravenous injection conduit guiding device is described.
Fig. 2 is an axonometric chart, explains that aforementioned intravenous injection conduit guiding device punctures in the blood vessel.
Fig. 3 is a view sub-anatomy, explains that the present invention can take a sample test one first preferred embodiment of the intravenous catheter setting device of blood back.
Fig. 4 is an assembled sectional view of this first preferred embodiment.
Fig. 5 is a cutaway view, explains that one first pipe fitting presses compression to produce the effect that the purt suction and pumping are drawn in this first preferred embodiment.
Fig. 6 is a cutaway view, explains that a catheter block and a conduit unload this first pipe fitting in this first preferred embodiment.
Fig. 7 is an assembled sectional view, explains that the present invention can take a sample test one second preferred embodiment of the intravenous catheter setting device of blood back.
Fig. 8 is an assembled sectional view, explains that the present invention can take a sample test one the 3rd preferred embodiment of the intravenous catheter setting device of blood back.
Fig. 9 is a cutaway view, explains that a catheter block and a conduit unload one first pipe fitting in the 3rd preferred embodiment.
Figure 10 is a three-dimensional exploded view, explains that the present invention can take a sample test one the 4th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 11 is an assembled sectional view of the 4th preferred embodiment.
Figure 12 is a cutaway view, explains that a catheter block and a conduit unload one second pipe fitting in the 4th preferred embodiment.
Figure 13 is a view sub-anatomy, explains that the present invention can take a sample test one the 5th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 14 is an assembled sectional view of the 5th preferred embodiment.
Figure 15 is a three-dimensional exploded view, explains that the present invention can take a sample test one the 6th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 16 is an assembled sectional view of the 6th preferred embodiment.
Figure 17 is an exploded view, explains that the present invention can take a sample test one the 7th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 18 is an assembled sectional view of the 7th preferred embodiment.
Figure 19 is a cutaway view, explains that the present invention can take a sample test one the 8th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 20 is a cutaway view, explains in the 8th preferred embodiment that one the 3rd takes a sample test part and places into one the 3rd pipe fitting and produce the effect that the purt suction and pumping are drawn.
Figure 21 is a cutaway view, explains that a catheter block and a conduit unload the 3rd pipe fitting in the 8th preferred embodiment.
Figure 22 is a cutaway view, another is described in the 8th preferred embodiment the 3rd takes a sample test part and place into the 3rd pipe fitting and produce the effect that the purt suction and pumping are drawn.
Figure 23 is a cutaway view, explains in the 8th preferred embodiment that the 3rd takes a sample test to gather in the part blood is arranged.
Figure 24 is a cutaway view, explains that the present invention can take a sample test one the 9th preferred embodiment of the intravenous catheter setting device of blood back.
Figure 25 is a cutaway view, explains in the 8th, the 9th preferred embodiment that the 3rd takes a sample test the combination situations of a part and a pull bar.
Figure 26 is a cutaway view, explains in the 8th, the 9th preferred embodiment that the 3rd takes a sample test the situation that produces the low pressure state in the part.
Figure 27 is a view sub-anatomy, explains that the present invention can take a sample test 1 the tenth preferred embodiment of the intravenous catheter setting device of blood back.
Figure 28 is an assembled sectional view of the tenth preferred embodiment.
Figure 29 is a top view, explains that the tenth preferred embodiment more includes to protect folder.
Figure 30 is a cutaway view, explains that this frame that protects a folder and a socket protects effect in the tenth preferred embodiment.
Figure 31 is a cutaway view, explains that the tenth preferred embodiment one catheter block and a conduit unload this socket, and utilizes the manual mode needle body of pulling back to be hidden in this socket.
Figure 32 is a cutaway view, explains that this socket one port of export is plugged with a protecting cover in the tenth preferred embodiment.
Figure 33 is an assembled sectional view, explains that the present invention can take a sample test 1 the 11 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 34 is a cutaway view, and the fixing appearance of the another kind attitude of a contraction type spring in the 11 preferred embodiment is described.
Figure 35 is a top view, explains that the 11 preferred embodiment one catheter block and a conduit unload a socket.
Figure 36 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 11 preferred embodiment, and this contraction type spring needle body of pulling back is hidden in this socket.
Figure 37 is a top view, explains that the present invention can take a sample test 1 the 12 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 38 is a top view, explains that the present invention can take a sample test 1 the 13 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 39 is a cutaway view, explains that the present invention can take a sample test 1 the 14 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 40 is an assembled sectional view, explains that the present invention can take a sample test 1 the 15 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 41 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 15 preferred embodiment, and this bullet is opened the formula spring and pushed a needle body and be hidden in this socket.
Figure 42 is an assembled sectional view, explains that the present invention can take a sample test 1 the 16 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 43 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 16 preferred embodiment.
Figure 44 is an assembled sectional view, explains that the present invention can take a sample test 1 the 17 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 45 is an assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 17 preferred embodiment is described.
Figure 46 is an assembled sectional view, explains that the present invention can take a sample test 1 the 18 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 47 is a cutaway view, explains that the present invention can take a sample test 1 the 19 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 48 is an assembled sectional view, explains that the present invention can take a sample test one the 20 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 49 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 20 preferred embodiment.
Figure 50 is an assembled sectional view, explains that the present invention can take a sample test one the 21 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 51 is an assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 21 preferred embodiment is described.
Figure 52 is an assembled sectional view, explains that the present invention can take a sample test one the 22 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 53 is a cutaway view, explains that the present invention can take a sample test one the 23 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 54 is a part of assembled sectional view, explains that the present invention can take a sample test one the 24 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 55 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 24 preferred embodiment, and utilizes the manual mode needle body of pulling back to be hidden in this socket.
Figure 56 is a part of assembled sectional view, explains that the present invention can take a sample test one the 25 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 57 is a part of assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 25 preferred embodiment is described.
Figure 58 is a part of assembled sectional view, explains that the present invention can take a sample test one the 26 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 59 is a cutaway view, explains that the present invention can take a sample test one the 27 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 60 is a part of assembled sectional view, explains that the present invention can take a sample test one the 28 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 61 is a part of assembled sectional view, explains that the present invention can take a sample test one the 29 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 62 is a part of assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 29 preferred embodiment is described.
Figure 63 is a part of assembled sectional view, explains that the present invention can take a sample test one the 30 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 64 one cutaway view explains that the present invention can take a sample test a hentriaconta-preferred embodiment of the intravenous catheter setting device of blood back.
Figure 65 is an assembled sectional view, explains that the present invention can take a sample test one the 32 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 66 is an assembled sectional view, explains that the present invention can take a sample test one the 33 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 67 is an assembled sectional view, explains that the present invention can take a sample test one the 34 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 68 is an assembled sectional view, but the gap that forms the supplied gas circulation in the 34 preferred embodiment between a base and a needle stand is described.
Figure 69 is an assembled sectional view, explains that the present invention can take a sample test one the 35 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 70 is an assembled sectional view, explains that the present invention can take a sample test one the 36 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 71 is a cutaway view, explains that a catheter block and a conduit unload a socket in the 36 preferred embodiment.
Figure 72 is a part of assembled sectional view, explains that a needle stand can be taken a sample test unitary each assembly by a joint seat and in the 36 preferred embodiment to be connected.
Figure 73 is a part of assembled sectional view, explains that the present invention can take a sample test one the 37 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 74 is a part of assembled sectional view, explains that the present invention can take a sample test one the 38 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 75 is a part of assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 38 preferred embodiment is described.
Figure 76 is a part of assembled sectional view, explains that the present invention can take a sample test one the 39 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 77 is a part of assembled sectional view, explains that the present invention can take a sample test one the 40 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 78 is a cutaway view, explains that a catheter block and a conduit unload a needle stand in the 40 preferred embodiment.
Figure 79 is a part of assembled sectional view, explains that the present invention can take a sample test one the 41 preferred embodiment of the intravenous catheter setting device of blood back.
Figure 80 is a part of assembled sectional view, and the fixing appearance of the another kind attitude of a contraction type spring in the 42 preferred embodiment is described.
Figure 81 is a part of assembled sectional view, explains that the present invention can take a sample test one the 42 preferred embodiment of the intravenous catheter setting device of blood back.
[specific embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated.
The present invention be described in detail before, be noted that in following description similar elements is to represent with identical numbering.
Consult Fig. 3, Fig. 4, first preferred embodiment that the present invention can take a sample test the intravenous catheter setting device of blood back comprises: one takes a sample test a unit and a pin group 2.
This is taken a sample test the unit and has one first pipe fitting 1 at present embodiment.This first pipe fitting 1 has a surrounding wall 12 that centers on an axis and define a chamber 11.This surrounding wall 12 has a reverse blind end 121 and a port of export 122, in abutting connection with a big caliber section 123 of this blind end 121, in abutting connection with the tubule footpath section 124 of this port of export 122.But this big caliber section 123 is elastic-plastic deformations and compress and restore this chamber 11, makes to produce purts in this chamber 11 and inhale effects.
This pin group 2 has a needle body 21, a catheter block 22, a flexible conduit 23 and a needle guard 24.This needle body 21 has a Fixed Division 211 affixed with this first pipe fitting, 1 tubule footpath section 124, and is formed on an end that is in reverse to this Fixed Division 211 and passes a cutting tip 212 of this first pipe fitting 1.This catheter block 22 is can unload liftoff and these first pipe fitting, 1 tubule footpath section 124 sockets.This conduit 23 is to be connected with this catheter block 22, and supplies these needle body 21 cutting tips 212 to pass.This needle guard 24 is to be nested with on this first pipe fitting 1 big caliber section 123, and coats this needle body 21, this catheter block 22 and this conduit 23.
Consult Fig. 4, Fig. 5, during use, medical personnel need only unload this needle guard 24 earlier; Then, being hold by one hand this first pipe fitting, 1 surrounding wall 12, and push this surrounding wall 12 big caliber sections 123; This chamber 11 is compressed, then, punctures in the blood vessel of animal body by these needle body 21 cutting tips 212; At this moment, need only unclasp this first pipe fitting, 1 big caliber section 123 gradually, make this big caliber section 123 in Recovery Process; In this chamber 11, produce purt suction effect; Be back to along this needle body 21 in the chamber 11 of this first pipe fitting 1 and take a sample test and guide blood, make this surrounding wall that can have an X-rayed 12 show the blood back phenomenons, to advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation.Whereby; Make medical personnel can differentiate this needle body 21 and this conduit 23 fast whether correctly in the intravasation; And can take a sample test the action of blood back with singlehanded simultaneously operating; Improve efficient and convenience that clinical treatment is provided with infusion catheter in the venous patient blood vessel fast, to strive for the gold treatment time of first aid sick body.
Consult Fig. 6; When in these needle body 21 correct intravasations, can guide synchronously in these conduit 23 intravasations, at this moment; Need only unload this catheter block 22 and this first pipe fitting 1; Just can make this needle body 21 detach blood vessel, this catheter block 22 and this conduit 23, completion imports endovascular operation with this conduit 23, and this catheter block 22 then can be connected with general drop transfer line and carries out fluid infusion.When accomplish aforementioned this conduit 23 is imported endovascular operation after, this needle guard 24 is can directly be nested with in this first pipe fitting 1 big caliber section 123 and coat this needle body 21, reaches the purpose of this needle body 21 of safety isolation.
Consulting Fig. 7 and Fig. 8, Fig. 9, is second and third preferred embodiment of the present invention, and itself and first preferred embodiment are roughly the same, difference be in:
This pin group 2 also has a connecting base 25.As shown in Figure 7, this connecting base 25 is to screw togather with the tubule of this first pipe fitting, 1 surrounding wall 12 footpath section 124, and is connected with 21 fixed 211 of this needle bodies.As shown in Figure 8, this connecting base 25 is to be nested with on the tubule footpath of this first pipe fitting 1 surrounding wall 12 section 124.These needle body 21 Fixed Divisions 211 are affixed with this connecting base 25, and are communicated with this first pipe fitting, 1 tubule footpath section 124, this port of export 122 and this chamber 11.This catheter block 22 is to unload liftoff being nested with on this connecting base 25, makes these needle body 21 cutting tips 212 can pass this conduit 23 equally.Consult Fig. 8, Fig. 9, this needle guard 24 ' is to unload liftoff being nested with on this catheter block 22.When accomplish aforementioned this conduit 23 is imported endovascular operation after, this needle guard 24 ' is directly to be nested with on this connecting base 25, and coats this needle body 21, reaches the purpose that safety is isolated this needle body 21.
Consulting Figure 10, Figure 11, is the present invention's the 4th preferred embodiment, and itself and first preferred embodiment are roughly the same, difference be in: this is taken a sample test the unit and has one second pipe fitting 3 and one second and take a sample test part 4.
This second pipe fitting 3 has around an axis and the surrounding wall 32, two block fins 33, the card that define a chamber 31 and ends seat 34 and one draw-in groove 35.This surrounding wall 32 has a reverse arrival end 321 and a port of export 322, in abutting connection with a big caliber section 323 of this arrival end 321, and in abutting connection with the tubule footpath section 324 of this port of export 322.This block fin 33 is formed in this surrounding wall 32 big caliber section 323 1 outer surfaces, and can supply the finger against.This card ends seat 34 and is formed in this surrounding wall 32 on the big caliber section 323 of this arrival end 321, and and 32 of this surrounding walls define a gap 341.This draw-in groove 35 is to run through this card along parallel this axis direction to end seat 34.
This second is taken a sample test part 4 and has each other a banded push rod 41 and a driving lever 42, reaches a piston 43.This push rod 41 is to be set in slippingly in these second pipe fitting, 3 chambers 31, but and have and be formed on the stressed and rear end face 411 of displacement of a rear end and forward, and be equipped with this piston 43 and make and this second pipe fitting 3 surrounding walls 32 airtight leading sections 412 that contact.This driving lever 42 is to be extended by these push rod 41 rear end opisthotonos; And have and be formed on a front end and can be oppositely stressed and drive a front end face 421 of these push rod 41 displacements, the two spacing ribs 422 that are formed on two sides and contiguous this front end face 421, a rib 423 that is formed on an end face and extends, and be arranged in most radial parallel card ribs 424 of these rib 423 2 sides along this axis direction along parallel this axis direction.What deserves to be mentioned is that this driving lever 42 has elastoplasticity, and can be when upspringing, end with this rib 423 and this card that draw-in groove 35 on the seat 34 is directed engage, and end on 34 at this card with aforementioned card rib 424 location blocks.
During use, medical personnel need only unload this needle guard 24 earlier, consult Figure 10; Then; Being hold by one hand this second pipe fitting, 3 surrounding walls 32, and puncture in the blood vessel of animal body, just can guide blood and be back in the chamber 31 of this second pipe fitting 3 along this needle body 21 by these needle body 21 cutting tips 212; Make this surrounding wall that can have an X-rayed 32 show the blood back phenomenons, and advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation.
So that blood refluxes, or target blood vessel outward appearance is indeterminate when animal body blood pressure deficiency, and when needing to survey the property puncture and taking a sample test blood back; Medical personnel can be hold by one hand this second pipe fitting, 3 surrounding walls 32, and the preferable mode of gripping is to be resisted against on the block fin 33 of this second pipe fitting 3 with thumb, middle finger, and force in this driving lever 42 front end faces 421 with forefinger; And press down this driving lever 42; Make the card rib 424 of these rib 423 both sides break away from this cards and end 34, make these driving lever 42 these push rods 41 of drive along this axis towards these surrounding wall 32 arrival ends 321 displacements, whereby; The purt that in this chamber 31, forms a low pressure is inhaled the space; When these needle body 21 cutting tips 212 correctly puncture in the blood vessel, will take out and draw endovascular blood and pass back in this second pipe fitting 3, make medical personnel can be fast, correctly whether this needle body 21 of correct decision, conduit 23 in the intravasation; So can promote convenience and efficient that clinical treatment is used with setting of singlehanded simultaneously operating catheter in blood vessel and the action of taking a sample test blood back.
What deserves to be mentioned is; When this driving lever 42 drive these push rods 41 along this axis when these surrounding wall 32 ports of export 322 are moved to the stroke end; This driving lever 42 can end seat 34 mutual blocks with the spacing rib 422 and the card on this second pipe fitting 3 of two sides; Place restrictions on the slippage stroke of this driving lever 42 and this push rod 41 whereby, prevent this and second take a sample test part 4 and have slippage to go out the situation of this second pipe fitting 3.
After accomplishing with the endovascular operation of this conduit 23 importings, need only again this needle guard 24 be nested with on this second pipe fitting 2 big caliber sections 323, and coat this needle body 21, just can reach the purpose that safety is isolated this needle body 21.
Consulting Figure 13, Figure 14, is the present invention's the 5th preferred embodiment, and itself and the 4th preferred embodiment are roughly the same, difference be in:
This pin group 2 also has a connecting base 25.This connecting base 25 is to be nested with on the tubule footpath of this second pipe fitting 3 surrounding walls 32 section 324, and affixed with these needle body 21 Fixed Divisions 211, and this needle body 21 is communicated with this tubule footpath section 324, the port of export 322 and this chamber 31.This catheter block 22 is to unload liftoff being nested with on this connecting base 25, makes these needle body 21 cutting tips 212 can pass this conduit 23 equally.This needle guard 24 ' is to unload liftoff being nested with on this catheter block 22.When accomplish aforementioned this conduit 23 is imported endovascular operation after, this needle guard 24 ' is directly to be nested with on this connecting base 25, and coats this needle body 21, reaches the purpose that safety is isolated this needle body 21.
Consulting Figure 15, Figure 16 and Figure 17, Figure 18, is the present invention's the 6th, seven preferred embodiments, and itself and fourth, fifth preferred embodiment are roughly the same, difference be in:
This second pipe fitting 3 ' has around this axis and the surrounding wall 32 ', two that defines a chamber 31 ' and pushes retaining ribs 36 ' and pumpback retaining rib 37 '.This surrounding wall 32 ' has a reverse arrival end 321 ' and a port of export 322 ', in abutting connection with a big caliber section 323 ' of this arrival end 321 ', and in abutting connection with the tubule footpath section 324 ' of this port of export 322 '.Aforementioned propelling movement retaining rib 36 ' is formed in these surrounding wall 32 ' big relative two sides of caliber section 323 ' one outer surface level and contiguous this arrival end 321 '.This pumpback retaining rib 37 ' is formed in this contiguous this arrival end 321 ' of surrounding wall 32 ' big caliber section 323 ' outer surface and the adjacent aforementioned propelling movement retaining rib 36 ' of equidistance.
This second is taken a sample test part 4 ' and has a push rod 41 ' that is set in this second pipe fitting 3 ' chamber 31 ' movablely.
Like Figure 15, shown in Figure 16, the needle body 21 of this pin group 2 is directly to be connected with this second pipe fitting 3 ' with this Fixed Division 211.Like Figure 17, shown in Figure 180, the needle body 21 of this pin group 2 is to be connected with this second pipe fitting 3 ' by a connecting base 25.
Whereby; So that blood refluxes, or target blood vessel outward appearance is indeterminate when animal body blood pressure deficiency, and when needing to survey the property puncture and taking a sample test blood back; Medical personnel can be hold by one hand this second pipe fitting, 3 ' surrounding wall 32 '; The preferable mode of gripping be with thumb, middle finger pull back this second take a sample test part 4 ' along this axis towards this surrounding wall 32 ' arrival end 321 ' displacement, and lean this pumpback retaining rib 37 ' and be in reverse to this with forefinger and second take a sample test the pumpback direction application of force of part 4 ' in this second pipe fitting, 3 ' chamber 31 ', whereby; The purt that in this chamber 31 ', forms a low pressure is inhaled the space; When these needle body 21 cutting tips 212 correctly puncture in the blood vessel, will take out and draw endovascular blood and pass back in this second pipe fitting 3 ', make medical personnel can be fast, correctly whether this needle body 21 of correct decision, conduit 23 in the intravasation; So can promote convenience and efficient that clinical treatment is used with setting of singlehanded simultaneously operating catheter in blood vessel and the action of taking a sample test blood back.
What deserves to be mentioned is; Medical personnel also can be hold by one hand this second pipe fitting 3 ' accomplish this conduit 23 imported endovascular operation after; Push this with thumb and second take a sample test the chamber 31 ' displacement of part 4 ' at this second pipe fitting 3 '; And with forefinger, in depend on to hold aforementioned propelling movement retaining rib 36 ' and be in reverse to this and second take a sample test the propelling movement direction application of force of part 4 ' in second pipe fitting, 3 ' chamber 31 '; With the blood in this second pipe fitting, 3 ' chamber 31 ' immediately tuberculosis collect test tube to blood testing and supply the subsequent medical detection applications, and under good sterile procedures situation, carry out the operation of liquid medicine injection immediately.
Consulting Figure 19 to Figure 23, is the present invention's the 8th preferred embodiment, and itself and first preferred embodiment are roughly the same, difference be in: this is taken a sample test the unit and has one the 3rd pipe fitting 5 and the 3rd and take a sample test part 6,6 '.
The 3rd pipe fitting 5 have around an axis and define a chamber 51 a surrounding wall 52, movable be contained in this chamber 51 and with these surrounding wall 52 airtight barriers 53 that contact.This surrounding wall 52 has a reverse arrival end 521 and a port of export 522, in abutting connection with a big caliber section 523 of this arrival end 521, in abutting connection with the tubule footpath section 524 of this port of export 522, be formed on a clipping ring 525 of these big caliber section 523 1 inner surfacies and contiguous this port of export 522.This barriers 53 is ventilative and can liquid barrier passes through, and a fitting portion 531 that has the one side of being formed on and extend towards this port of export 522 along parallel this axis direction.
The 3rd takes a sample test part 6,6 ' is respectively a short tube and a long tube; Be to unload in the liftoff chamber 51 that is set in the 3rd pipe fitting 5, and have around an axis respectively and define a tube chamber 61,61 ' a chamber wall 62,62 ', one plug part 63,63 ' and one closure member 64,64 '.In this tube chamber 61,61 ' is to form utmost point low pressure state.This chamber wall 62,62 ' has a reverse forward open end 621,621 ' and one rear open end 622,622 ', and is formed on an inner surface and contiguous this rear open end 622, an edge clipping 623,623 ' of 622 '.This plug spare 63,63 ' is to seal fixing airtightly in this chamber wall 62,62 ' forward open end 621,621 ', and has towards this barriers 53 and a caulking groove 631,631 ' that can be chimeric with this fitting portion 531.This closure member 64,64 ' is that sealing fixes this chamber wall 62,62 ' rear open end 622,622 ', and with this chamber wall 62,62 ' airtight contact
The needle body 21 of this pin group 2 is with in this fixed the 211 tubule footpath section 524 that is set in the 3rd pipe fitting 5, and has the one first puncture section 213 that places in the 3rd pipe fitting 5 chambers 51, and passes one second puncture section 214 of the 3rd pipe fitting 5.This catheter block 22 is to be nested with on the tubule footpath of the 3rd pipe fitting 5 surrounding walls 52 section 524.
During use; Medical personnel need only unload this needle guard 24 earlier, then, and to be hold by one hand the 3rd pipe fitting 5 surrounding walls 52; And the cutting tip 112 that punctures section 214 by this needle body 21 second punctures in the blood vessel of animal body; Just can guide blood and be back in the chamber 51 of the 3rd pipe fitting 5, make this surrounding wall that can have an X-rayed 52 show the blood back phenomenons, and advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation along this needle body 21.
Consult Figure 20, Figure 21 and Figure 22, Figure 23; When animal body blood pressure deficiency so that blood reflux; Or target blood vessel outward appearance is indeterminate; And when need surveying the property puncture and taking a sample test blood back; Medical personnel can take a sample test part 6 or the 3rd with the 3rd and take a sample test in the chamber 51 that part 6 ' places this second pipe fitting 5, make the 3rd take a sample test part 6,6 ' with this plug spare 63,63 ' caulking groove 631,631 ' and the fitting portion 531 of this barriers 53 chimeric, and push this barriers 53 towards these needle body 21 first puncture sections 214 displacements; Make this needle body 21 first puncture sections 213 pierce through this barriers 53 and second take a sample test part 6,6 ' plug spare 63,63 ' with this; And can be by the 3rd utmost point low pressure state taken a sample test in part 6, the 6 ' tube chamber 61,61 ', take out and draw endovascular blood and pass back into the 3rd and take a sample test in the part 6,6 ' tube chamber 61,61 ', make medical personnel can be fast, correctly whether this needle body 21 of correct decision, conduit 23 in the intravasation.When accomplish aforementioned this conduit 23 is imported endovascular operation after, this needle guard 24 is can be nested with on the big caliber section 523 of the 3rd pipe fitting 5, and coats this needle body 21, reaches the purpose that safety is isolated this needle body 21.
Consult Figure 22, Figure 23, what deserves to be mentioned is, because the 3rd to take a sample test part 6 ' length longer; And be applicable to the machine of general centrifugal treating, so the 3rd takes a sample test part 6 ' can hold more blood; As the purposes of a synchronous acquisition blood corpse or other object for laboratory examination and chemical testing, after the collection of synchronous completion catheter in blood vessel 23 settings and a blood corpse or other object for laboratory examination and chemical testing, need only detach the 3rd along the chamber 51 of this surrounding wall 52 and take a sample test part 6 '; Make barriers 53 on the throne the moving past in the journey with this plug spare 63 ' embedding knot, be hampered by this clamping ring 525 and unload the 3rd and take a sample test part 6 ', and be retained in this chamber 51; Whereby, the 3rd takes a sample test part 6 ' can directly pass on the check unit and carry out follow-up medical science and detect, and promotes medical treatment efficiency of operation, coherency and convenience; And reduce the general job flow process pollution, with the chance that infects, and most amounts of Biohazard Waste.。
Consulting Figure 24, is the present invention's the 9th preferred embodiment, and itself and the 6th preferred embodiment are roughly the same, difference be in:
This pin group 2 also has a connecting base 25.And first, second puncture section the 213, the 214th of this needle body 21, separated attitude.This connecting base 25 is to be nested with on the tubule footpath of the 3rd pipe fitting 5 surrounding walls 52 section 524, and affixed with these needle body 21 second puncture sections 214, and these needle body 21 second puncture sections 214 are communicated with this first puncture section 213 and this chamber 51 by this connecting base 25.This catheter block 32 is to unload liftoff being nested with on this connecting base 25, makes the cutting tip 212 of these needle body 21 second puncture sections 214 can pass this conduit 23 equally.This needle guard 24 is to unload liftoff being nested with on this catheter block 22.When accomplish aforementioned this conduit 23 is imported endovascular operation after, this needle guard 24 is directly to be nested with on this connecting base 25, and coats this needle body 21, reaches the purpose that safety is isolated this needle body 21.
Consult Figure 25, Figure 26, the 3rd takes a sample test part 6 ' also has a pull bar 65 '.This pull bar 65 ' have supply this closure member 64 ' fix interlock a bar head 651 ', connect this bar head 651 ' a shaft 652 ', be formed on the breach 653 ' between this bar head 651 ' and this shaft 652 ', an and flange 654 ' that is formed on this bar head 651 ' and can fastens each other with this chamber wall 62 ' edge clipping 623 '.
This pull bar 65 ' is the tube chamber 61 ' interior (like Figure 25) that is set in this chamber wall 62 ' before use; During use; Elder generation's this shaft 652 ' of pull draws this bar head 651 ' and the position of this closure member 64 ' by this chamber wall 62 ' contiguous this forward open end 621 ' and this plug spare 63 '; Towards this rear open end 622 ' displacement airtightly,, just can this bar head 651 ' and this closure member 64 ' be positioned at the position of this chamber wall 62 ' contiguous this rear open end 622 ' to of the edge clipping 623 ' fixing each other of this bar head 651 ' with this flange 654 ' and this chamber wall 62 '; Make this tube chamber 61 ' form utmost point low pressure state; Then, along this shaft of this breach 653 ' dialysis 652 ' and this bar head 651 ', produce immediately and have purt and inhale the 3rd of function and take a sample test part 6 '.
Consulting Figure 27, Figure 28 and Figure 29, is the present invention's the tenth preferred embodiment, and itself and first preferred embodiment are roughly the same, difference be in: the intravenous catheter setting device that the present invention can take a sample test blood back more includes a socket 7 and a needle body pumpback unit 8.
This socket 7 has around an axis and defines a tube wall 72, a guide channel 73 of a tube chamber 71, and an end cap 74.This tube wall 72 has a port of export 721 and an arrival end 722 of reverse extension, in abutting connection with this port of export 721 and a tubule section 723 that supplies that this catheter block 22 is nested with, in abutting connection with a big pipeline section 724 of this arrival end 722, be formed on 724,723 of this large and small pipeline sections a shoulder 725, be formed on two convex surfaces 726 (consulting Figure 30) of both sides, and be formed on a snap ring 727 of an outer surface and contiguous this port of export 721.This guide channel 73 is formed on these tube wall 72 big pipeline sections 724; And extend towards this port of export 721 along parallel this axis direction by this arrival end 722; And end at a prelocalization hole 731 that is close to this port of export 721, and be formed on a back locating hole 732 of contiguous this arrival end 722.This end cap 74 is sockets and fixes at these tube wall 72 arrival ends 722 that it is firmly indeformable that this arrival end 722 is kept.。
This needle body pumpback unit 8 has the needle stand 81 and the C type that are positioned at slippingly in these socket 7 tube chambers 71 and protects folder 82.This needle stand 81 also has and is formed on an end face and passes the protuberance 811 at this socket 7 guide channels 73, and is formed on this midline position and is extended to a spill guide groove 812 of this protuberance 811 by a front end 813.This protuberance 811 is to engage with these guide channel 73 forward and backward locating holes 731,732 respectively.This guide groove 812 is to supply fixed 211 of this needle body 21 ccontaining, fix, and makes the cutting tip 212 of this needle body 21 oppositely pass this socket 7 ports of export 721, this catheter block 22 and this conduit 23.
When user mode, this needle stand 81 is to engage with these guide channel 73 prelocalization holes 731 with this protuberance 811, and is positioned at the position of these socket 7 contiguous these ports of export 721, and makes these needle body 21 cutting tips 211 pass this socket 7 ports of export 721 and this conduit 23.Consult Figure 29, Figure 30; This protects folder 82 is can unload liftoff ring to overlay on these socket 7 tube walls 72; And have be formed on an inner surface and with two trips 821 of these socket 7 convex surfaces 726 buckles, and two limited ribs 822 that are formed on an inner surface and extend along parallel this axis direction.Aforementioned limited rib 822 is to be set in these socket 7 guide channels 73, reaches the mutual block of furrow bank with these guide channel 73 2 sides.Whereby, this protects folder 82 can retrain not dilatating and deformable of these socket 7 tube walls 72 and this guide channel 73, makes the protuberance 811 that the prelocalization hole 731 of this guide channel 73 can firmly spacing this needle stand 81.
What deserves to be mentioned is that these needle stand 81 protuberances 811 are to take a sample test the unit with this to link, and consult Figure 27, Figure 28, are example with this first pipe fitting 1, this first pipe fitting 1 is to screw togather with these needle stand 81 protuberances 811, and is communicated with 21 fixed 211 of this needle bodies.
During use; Medical personnel need only unload this needle guard 24 earlier, then, and with the tube wall 72 that is hold by one hand this socket 7; And puncture in the blood vessel of animal body by these needle body 21 cutting tips 211; Just can guide blood and be back in the chamber 11 of this first pipe fitting 1, make this surrounding wall that can have an X-rayed 12 show the blood back phenomenons, and advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation along this needle body 21.
When animal body blood pressure deficiency so that blood reflux; Or the target blood outward appearance is indeterminate; And when need surveying the property puncture and taking a sample test blood back, medical personnel can carry out vascular puncture in the big caliber section 123 that is hold by one hand and pushes this first pipe fitting, 1 surrounding wall 12 equally, make this chamber 11 be compressed with Recovery Process in; In this chamber 11, produce purt suction effect; Take a sample test and guide blood synchronously and be back in the chamber 11 of this first pipe fitting 1, make this surrounding wall that can have an X-rayed 12 show the blood back phenomenons, to advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation along this needle body 21.
At this moment, consult Figure 31, medical personnel can oppress fixing endovascular conduit 23 and this catheter block 22 on the other hand; Thumb and middle finger with another hands grips this socket 7 simultaneously; And with middle finger collude the button this needle stand 81 towards these socket 7 arrival ends 722 direction displacements, make this needle body 21 detach blood vessel and this conduit 23, and hide in these socket 7 tube chambers 71; Then; Make this socket 7 unload this catheter block 22, completion imports endovascular operation with this conduit 23, and this catheter block 22 then can be connected with general drop transfer line and carries out fluid infusion.
When medical personnel stir this these needle stand 8 protuberances 811 towards the direction application of force of these socket 7 arrival ends 722; Make the protuberance 811 of needle stand 81 break away from the prelocalization hole 731 of this guide channel 73; Just can remove the positioning relation of this needle stand 81 and this socket 7; The path that makes this needle stand 81 borrow this protuberance 811 to follow this guide channel 73 together with this first pipe fitting 1, engages with this back locating hole 732 (consulting Figure 29) to the protuberance 811 of this needle stand 81 towards these arrival end 722 displacements along these socket 7 tube chambers 71; Just can locate this needle stand 81 and this first pipe fitting 1, make this needle stand 81 be positioned at the stowed position of contiguous these bobbin 7 arrival ends 722.At this moment, this needle body 21 is understood with these needle stand 81 slippages, and is hidden in the tube chamber 71 of this socket 7; And can be with one-handed performance and manual mode; After reaching catheter in blood vessel 23 and being provided with, fully exposed and safety is isolated the purpose of used needle body 21, exempts medical personnel after accomplishing the action that existing traditional venoclysis conduit is provided with; Contact with this exposed needle body 21 because tidying up the injection guide pin, the pin letter, cause danger injured, infection.
Consult Figure 32, this pin group 2 also has a protecting cover 26.This protecting cover 26 has and is placed on a planar wooden partition 261, and is formed on the axle sleeve 262 on this wooden partition 261.This axle sleeve 262 be can with these socket 7 tubule sections 723 fits, and fix with this snap ring 727.After this needle body 21 was hidden in the tube wall 72 of this socket 7, medical personnel can directly be plugged on these socket 7 tubule sections 723 in the axle sleeve 262 of this protecting cover 26, made this protecting cover 26 these socket 7 ports of export 721 of sealing.
Consulting Figure 33, is the present invention's the 11 preferred embodiment, and itself and the tenth preferred embodiment are roughly the same, difference be in:
The tube wall 72 of this socket 7 also has a ring rib 728 that is formed on these big caliber section 724 1 inner surfacies and can stops this needle stand 81, and this ring rib 728 can be worked in coordination with the needle stand 81 in these prelocalization hole 731 firm these sockets 7.
This needle body pumpback unit 8 also has a contraction type spring 83; This spring 83 is contained in 81 of these socket 7 end caps 74 and this needle stands by tension; And have a traction end 831 fixed, and be hooked on a positioning end 832 of these socket 7 tube walls 72 and contiguous this arrival end 722 with this needle stand 81.This positioning end 832 also can be shown in figure 34 fixed with this end cap 74.
Consult Figure 35, Figure 36, whereby, the protuberance 811 of stirring this needle stand 81 as medical personnel breaks away from these guide channel 73 prelocalization holes 731; Simultaneously; After these needle stand 81 disengagings should encircle rib 728, can start the elastic-restoring force of this contraction type spring 83, make this spring 83 when shrinking; Drive this needle stand 81 together with of the direction displacement of this first pipe fitting 1 along the tube chamber 71 of this socket 7 towards this arrival end 722; Engage the location with this protuberance 811 with this back locating hole 732 to this needle stand 81, and be positioned at stowed position, just can reach the purpose that safety is isolated used needle body 21.
Consulting Figure 37, is the present invention's the 12 preferred embodiment, and itself and the 11 preferred embodiment are roughly the same, difference be in:
This socket 7 also has and is formed on one on these socket 7 tube walls 72 by holding sheet 75.Should be contiguous these guide channel 73 prelocalization holes 731 1 sides by holding sheet 75, and radially give prominence to this tube wall 72 and, supply finger by holding along this axis direction extension.
This needle body pumpback unit 8 also has one group of control 84.This group control 84 be hubbed on these socket 7 tube walls 72 and contiguous these guide channel 73 prelocalization holes 731 corresponding to this by holding the opposite side of sheet 75; And have formation at one end and can collude a buckle 841 of these needle stand 81 protuberances 811 of button, and be formed on one group of plate 842 that this buckle 841 of the other end and may command breaks away from these protuberances 811.
After in medical personnel accomplish this conduit 23 importing blood vessels; The thumb that can grip this socket 7 by holding sheet 75 as the strong point, and is dialled plate 842 with what the forefinger application of force was stirred this group control 84 against this, stably drives the protuberance 811 that this buckle 841 breaks away from these needle stands 81; And remove the positioning relation in this needle stand 81 and these socket 7 prelocalization holes 731; Just can discharge the back stretch of contraction type spring shown in figure 33, make of the direction displacement of this needle stand 81, engage the location with this protuberance 811 with this back locating hole 732 to this needle stand 81 along the tube chamber 71 of this socket 7 towards arrival end 722; And be positioned at stowed position, and simultaneously this needle body 21 is hidden in the tube chamber 71 of this socket 7.
Consulting Figure 38, is the present invention's the 13 preferred embodiment, and itself and the 11 preferred embodiment are roughly the same, difference be in:
The guide channel 73 of this socket 7 also has a transfer leg 733.This transfer leg 733 is to be extended around the direction of this tube wall 72 by the end edge of these guide channel 73 contiguous these socket 7 ports of export 721, and is formed with this prelocalization hole 731, and corresponding by holding sheet 75 with this.
The folder 82 that protects of this needle body pumpback unit 8 also has to be set in this socket 7 guide channels 73 and to compel to support these needle stand 81 protuberances 811 and is positioned at the barrier rib 823 in this prelocalization hole 731.Whereby, can utilize this to protect not dilatating and deformable of folder 82 constraint these socket 7 tube walls 72 and this guide channels 73 equally, and stop that with this barrier rib 823 that protects folder 82 protuberance 811 of this needle stand 81 is firmly spacing in the prelocalization hole 731 of this guide channel 73.
During use; Need only unload this and protect folder 82; Can carry out catheter in blood vessel 23 operation is set, and after this conduit 23 imports in blood vessels smoothly, with the thumb that grips this socket 7 against this by holding sheet 75 as the strong point; And the protuberance 811 of dialling this needle stand 81 of commentaries on classics with the forefinger application of force is by the axially extended guide channel 73 of these prelocalization hole 731 entering of these transfer leg 733 disengagings; Just can discharge the back stretch of contraction type spring shown in figure 33, make of the direction displacement of this needle stand 81, engage the location with this protuberance 811 with this back locating hole 732 to this needle stand 81 along the tube chamber 71 of this socket 7 towards arrival end 722; And be positioned at stowed position, and simultaneously this needle body 21 is hidden in the tube chamber 71 of this socket 7.
Consulting Figure 39, is the present invention's the 14 preferred embodiment, and itself and the 11 preferred embodiment are roughly the same, difference be in:
This pin group 2 also has the drain flexible pipe 27 that can have an X-rayed.This drain flexible pipe 27 be ccontaining fixing in the guide groove 812 of this needle stand 81, and be communicated with the tubule footpath section 124 of 21 fixed 211 of the needle bodies be set in this guide groove 812 and this first pipe fitting 1 respectively.
Whereby; The setting of this drain flexible pipe 27; Can be used as the form of blood back; And can take a sample test and guide blood by this first pipe fitting 1 equally and be back in the chamber 11 of this first pipe fitting 1, to advise this needle body 21 of medical personnel and this conduit 23 ahead of time correctly in the intravasation along this needle body 21 and this drain flexible pipe 27.
Consulting Figure 40, Figure 41, is the present invention's the 15 preferred embodiment, and itself and the 12 preferred embodiment are roughly the same, difference be in:
This needle body pumpback unit 8 also has a bullet and opens formula spring 85.This spring 85 is to be compressed to be contained in 81 of these socket 7 shoulders 725 and this needle stands, and has an abutment end 851 that is resisted against contiguous this shoulder 725, and bounces up end 852 with this needle stand 81 banded one.
Whereby; When medical personnel accomplished the endovascular operation of this conduit 23 importings, the finger application of force that can grip this socket 7 was stirred this group control 84, and removes the positioning relation of this needle stand 81 and this socket 7; Just can discharge the back stretch that this bullet is opened formula spring 85; Make this spring 85 bounce up end 852 and promote these needle stands 81, make this needle stand 81, engage the location with this protuberance 811 with this back locating hole 732 to this needle stand 81 together with of the direction displacement of this first pipe fitting 1 along the tube chamber 71 of this socket 7 towards this arrival end 722 with this; And be positioned at stowed position, and simultaneously this needle body 21 is hidden in the tube chamber 71 of this socket 7.
What deserves to be mentioned is; Be to utilize this group control 84 to start aforementioned bullet to open formula spring 85 in the present embodiment; Also can directly cooperate this forward and backward locating hole 731,732 like Figure 33 with manual mode; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85.Also can shown in figure 39ly connect this needle body 21 and this first pipe fitting 1 by this drain flexible pipe that can have an X-rayed 27, the form as showing blood back correctly punctures in the blood vessel and advise medical personnel ahead of time.
Consulting Figure 42 to Figure 43, Figure 44 to Figure 45 and Figure 46, is the present invention's the 16,17,18 preferred embodiments, roughly the same with the tenth, 12,15 preferred embodiments respectively, difference be in:
This needle body pumpback unit 8 is to link with the tubule footpath section 324 of needle stand 81 protuberances 811 with these second pipe fitting, 3 surrounding walls 32.Whereby, need only pumpback the 3rd take a sample test part 4, just can produce the effect that the purt suction and pumping are drawn; Reach the purpose of when the intravenous infusion conduit is set, taking a sample test blood back synchronously; And equally can be by the manual mode of Figure 42, Figure 43, or the contraction type spring 83 of Figure 44, Figure 45, or the bullet of Figure 46 is opened formula spring 85 after intravenous catheter 23 is provided with; Drive these needle stand 81 these needle bodies 21 of drive and be hidden in this socket 7, reach the purpose of hiding needle body 21.
What deserves to be mentioned is; Be to utilize this group control 84 to start aforementioned bullet to open formula spring 85 or contraction type spring 83 in the aforementioned embodiment; Also can directly cooperate this forward and backward locating hole 731,732 like Figure 33 with manual mode; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85 or contraction type spring 83.
Consult Figure 47; It is the present invention's the 19 preferred embodiment; It mainly is to connect this needle body 21 and this second pipe fitting 3 by this drain flexible pipe that can have an X-rayed 27, whereby applicable to aforementioned the 16 to the 18 preferred embodiment; Can be used as the form that shows blood back, correctly puncture in the blood vessel and advise medical personnel ahead of time.
Consulting Figure 48 to Figure 49, Figure 50 to Figure 51 and Figure 52, is the present invention's the 20,21,22 preferred embodiments, roughly the same with the 16,17,18 preferred embodiments respectively, difference be in:
This needle body pumpback unit 8 is to link with the tubule footpath section 324 ' of needle stand 81 protuberances 811 with this second pipe fitting, 3 ' surrounding wall 32 '.Whereby; Need only pumpback the 3rd take a sample test part 4 ', just can produce the effect that the purt suction and pumping are drawn, reach the purpose of when the intravenous infusion conduit is set, taking a sample test blood back synchronously; And equally can be by the manual mode of Figure 48, Figure 49; The contraction type spring 83 of Figure 50, Figure 51, the bullet of Figure 52 are opened these needle stand 81 these needle bodies 21 of drive of formula spring 85 drivings and are hidden in this socket 7, reach the purpose of hiding needle body 21.
What deserves to be mentioned is; Be to utilize with this manual mode to cooperate the aforementioned bullet of these forward and backward locating hole 731,732 startups to open formula spring 85 or contraction type spring 83 in the aforementioned embodiment; Also can be like Figure 38; Cooperate the setting of this transfer leg 733 with manual mode, start aforementioned bullet and open formula spring 85 or contraction type spring 83, or shown in figure 44ly start aforementioned bullet by this group control 84 and open formula spring 85 or contraction type spring 83.
Consult Figure 53; It is the present invention's the 23 preferred embodiment; It mainly is to connect this needle body 21 and this second pipe fitting 3 ' by this drain flexible pipe that can have an X-rayed 27, whereby applicable to aforementioned the 20 to the 22 preferred embodiment; Can be used as the form that shows blood back, correctly puncture in the blood vessel and advise medical personnel ahead of time.
Consulting Figure 54 to Figure 55, Figure 56 to Figure 57, Figure 58 and Figure 59, is the present invention's the 24,25,26,27 preferred embodiments, roughly the same with the 16,17,18,19 preferred embodiments respectively, difference be in:
This needle body pumpback unit 8 is to link with the tubule footpath section 524 of needle stand 81 protuberances 811 with the 3rd pipe fitting 5 surrounding walls 52.Whereby; Need only take a sample test part 6 or the 3rd with the 3rd takes a sample test part 6 ' and plants in the chamber 51 of the 3rd pipe fitting 5; Just can utilize the first puncture section 213 of this needle body 21 to pierce through this barriers 53 and this plug spare 63; And can be by the 3rd utmost point low pressure state taken a sample test in part 6, the 6 ' tube chamber 61,61 ', take out and draw endovascular blood and pass back into the 3rd and take a sample test in the part 6,6 ' tube chamber 61,61 ', reach the purpose of when the intravenous infusion conduit is set, taking a sample test blood back synchronously; And equally can be by the manual mode of Figure 54, Figure 55; Or the contraction type spring 83 of Figure 56, Figure 57, or the bullet of Figure 58 opens formula spring 85 and drives this needle stand 81 and drive these needle bodies 21 and be hidden in this socket 7, reaches the purpose of hiding needle body 21.Also can shown in Figure 59,, connect this needle body 21 first puncture sections 213 and second puncture section 214, can be used as the form that shows blood back, correctly puncture in the blood vessel and advise medical personnel ahead of time by the setting of this drain flexible pipe 27 that can have an X-rayed.
Consult Figure 56, the positioning end 832 of this contraction type spring 83 can be hooked on the position of these socket 7 tube walls 72 and contiguous this arrival end 722 equally, or shown in Figure 57, this positioning end 832 also can be fixed with this end cap 74.
What deserves to be mentioned is; Be to utilize manual mode to start aforementioned bullet to open formula spring 85 or contraction type spring 83 in the aforementioned embodiment; Also can be like Figure 37 with this group control 84; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85 or contraction type spring 83.
Consult Figure 60 to Figure 64; Be the present invention the 28,29,30, hentriaconta-preferred embodiment; Itself and aforementioned the 24 to the 27 preferred embodiment are roughly the same, difference be in: the intravenous catheter setting device that the present invention can take a sample test blood back more includes a joint group 9.
This joint group 9 has one of hollow and mutual fit can have an X-rayed a joint seat 91 and a pipe cage 92.This joint seat 91 be link with this needle stand 81 protuberances 811 and with these needle body 211 fixed connections of 21 Fixed Divisions; And have towards this socket 7 arrival ends 722 and with this axis and be a rear port 911 at an elevation angle, and be formed on an outer surface and can supply to point two fins 912 by holding.This pipe cage 92 is can unload liftoff and these joint seat 91 rear ports 911 sockets; And have with the belled front port 920 of this joint seat 91 rear ports 911, be in reverse to this front port 920 and, and this rear port 921 of capping and breathable one diaphragm sheet 922 towards a rear port 921 of these socket 7 arrival ends 722.
During use; Medical personnel need only be with the tube wall 72 that is hold by one hand this socket 7; Puncture in the blood vessel of animal body by these needle body 21 cutting tips 211; Just can guide blood and be back in this joint seat 91, make this joint seat that can have an X-rayed 91 show the blood back phenomenons, and advise this needle body 21 of medical personnel correctly in the intravasation along this needle body 21.
When animal body blood pressure deficiency so that blood reflux; Or the target blood outward appearance is indeterminate; And when need surveying the property puncture and taking a sample test blood back synchronously, medical personnel can unload this pipe cage 92, after this first pipe fitting 1 or this second pipe fitting 3 or this second pipe fitting 3 ' or the 3rd pipe fitting 5 and these joint seat 91 rear ports 911 airtight sockets; Be an elevation angle along this axis direction and this socket 7, and make things convenient for holding operation.Whereby; Equally can be under the situation that is hold by one hand this socket 7; Cooperate this first pipe fitting 1 of compression or spur this and second take a sample test part 4,4 '; Or take a sample test part 6,6 ' with the 3rd and plant in the 3rd pipe fitting 5; Produce the effect that the purt suction and pumping are drawn, just can guide endovascular blood this first pipe fitting 1 of entering or second pipe fitting the 3, the 3 ' or the 3rd and take a sample test in the part 6,6 ', make medical personnel in piercing process, can differentiate this needle body 21 and this conduit 23 fast and whether correctly puncture in the intravasation.
And medical personnel equally can be by the manual mode of Figure 60, or the contraction type spring 83 of Figure 61, Figure 62, or the bullet of Figure 63 opens formula spring 85 and drive this needle stand 81 and drive these needle bodies 21 and be hidden in this socket 7, reaches the purpose of hiding needle body 21.Consult Figure 61, the positioning end 832 of this contraction type spring 83 can be hooked on the position of these socket 7 tube walls 72 contiguous these arrival ends 722 equally, or shown in Figure 62, this positioning end 832 also can be fixed with this end cap 74.
What deserves to be mentioned is; Be to utilize manual mode to start aforementioned bullet to open formula spring 85 or contraction type spring 83 in the aforementioned embodiment; Also can be like Figure 37 with this group control 84; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85 or contraction type spring 83.Also can shown in Figure 64,, connect this needle body 21 and this joint seat 91, can be used as the form that shows blood back, correctly puncture in the blood vessel and advise medical personnel ahead of time by the setting of this drain flexible pipe 27 that can have an X-rayed.
Consulting Figure 65, is the present invention's the 32 preferable enforcement, and itself and the 28 preferred embodiment are roughly the same, difference be in:
This needle body pumpback unit 8 has a needle stand 86 that is positioned at slippingly in these socket 7 tube chambers 71.This needle stand 86 have around this axis and define an aperture road 861 and a macropore 862 one first ring wall 863 and one second ring wall 864, be formed on this second ring wall 864 and pass these socket 7 guide channels 73 a protuberance 865, be formed on these protuberance 865 1 ends an inclined-plane 866, by this first ring wall 863 along this axis direction extend and and the fixed connected section 867 in this needle body 21 Fixed Divisions 211, be arranged on this 862,861 in large and small duct and the center is formed with a diaphragm sheet 868 of a spout hole 860, and run through this protuberance 865 and be communicated with a post hole 869 of this macropore 862.This large and small duct the 862, the 861st is interconnected.The spout hole 860 at these partition 868 centers provides and delays blood and be circulated in this macropore 862 by this aperture road 861.This first ring wall 863 is to have an X-rayed and to be formed with a radian, can reach the function of good demonstration blood back.This protuberance 865 is to terminate in this inclined-plane 866 finally, and present embodiment be can unload liftoff and this guide channel 73 prelocalization holes 731 each other card end, and be positioned at the position of contiguous these socket 7 ports of export 721.
This joint group 9 also has and this needle stand 86 protuberances 865 belled bases 93.This base 93 has an open port 931, and is arranged on this port 931 and breathable one diaphragm sheet 932, and the large and small duct 862,861 of this needle stand 86 is communicated with extraneous ventilatively.
During use; Medical personnel equally need only be to be hold by one hand this socket 7; Puncture in the blood vessel of animal body by these needle body 21 cutting tips 211; Just can guide blood and be back in the aperture road 861 of this needle stand 86, make this ring wall that can have an X-rayed 863 show the blood back phenomenons, and advise this needle body 21 of medical personnel and this conduit 23 correctly in the intravasation along this needle body 21.
Consulting Figure 66, is the present invention's the 33 preferable enforcement, and itself and the 32 preferred embodiment are roughly the same, difference be in:
This joint group 9 also has the cap 94 that can open these base 93 ports 931 of ground capping.Whereby, open this cap 94 after, this large and small duct 862,861 is communicated with extraneous breathable, but and blood supply liquid is back in this aperture road 861 smoothly.
Consulting Figure 67, Figure 68, is the present invention's the 34 preferable enforcement, and itself and the 32 preferred embodiment are roughly the same, difference be in:
This joint group also has another base 95; This base 95 have around this protuberance 865 and define a taper hole 951 a perisporium 952, connect an end wall 953 of these perisporium 952 1 ends, and outstanding and be resisted against the bridge formation of one on this inclined-plane 866 954 by relative this needle stand of this end wall 953 86 inclined-planes 866.
When the bridge formation 954 of this base 95 contacted with these needle stand 86 inclined-planes 866 minimum points, the taper hole 951 of this base 95 just and these needle stand 86 protuberances 865 outer peripheral faces are airtight each other coincide, and can seal this post hole 869.When this base 95 of medical personnel's turn; When this bridge formation 954 is contacted with these needle stand 86 inclined-planes 866 higher point; This base 95 can move to rising because of the drop of these inclined-plane 866 height; But make between this perisporium 952 and this needle stand 86 protuberances 865 outer peripheral faces the gap that forms the supplied gas circulation, with discongest blood should be large and small when refluxing the interior air pressure in duct 862,861, but and blood supply liquid is back in this aperture road 861 smoothly.
Consulting Figure 69, is the present invention's the 35 preferable enforcement, and itself and the 32 preferred embodiment are roughly the same, difference be in:
This joint group 9 also has a joint seat 96 of replaceable aforementioned base 93,95.This joint seat 96 has towards this socket 7 arrival ends 722 directions and extends and be a rear port 961, this rear port 961 of capping and the breathable one diaphragm sheet 962 at an elevation angle with this axis, and can unload liftoff and these needle stand 86 protuberances 865 belled elbows 963.
Whereby, these needle stand 86 post holes 869 can be communicated with extraneous by this diaphragm sheet 962 ventilatively, with discongest blood should be large and small when refluxing the interior air pressure in duct 862,861, but and blood supply liquid is back in this aperture road 861 smoothly.
Consulting Figure 70, Figure 71, is the present invention's the 36 preferable enforcement, and itself and the 32 preferred embodiment are roughly the same, difference be in:
This joint group 9 also has a joint seat 97.This joint seat 97 has and is formed on two ends and can unloads liftoff a socket elbow 971 and an end of socket afterwards 972 before belled one each other with this needle stand 86 protuberances 865, this pipe cage 92 respectively.This joint seat 97 is replaceable aforementioned base 93,95 and this joint seat 96 with this pipe cage 92.
Whereby, these diaphragm sheets 922 that these needle stand 86 post holes 869 can see through in this pipe cage 92 be communicated with the external world ventilatively, the air pressure when discongesting the blood backflow, and the blood that can supply to reflux flows in these needle stand 86 aperture roads 861 smoothly.
Consult Figure 72; When animal body blood pressure deficiency so that blood reflux; Or the target blood outward appearance is indeterminate; And the property need surveyed puncture and when taking a sample test blood back, medical personnel need only unload aforementioned tubes cage 92 or directly with these joint seat 97 this base 93,95 of replacement or this joint seats 96, and select this is taken a sample test unitary first pipe fitting 1 or this second pipe fitting 3, the 3 ' or the 3rd pipe fitting 5 and this joint seat 97 back socket ends 972 sockets.Whereby; Can be hold by one hand this socket 7 when implementing catheter in blood vessel 23 and being provided with equally; Borrow this to take a sample test unitary first pipe fitting 1 or this second pipe fitting 3,3 ' and second is taken a sample test part 4, the 4 ' or the 3rd pipe fitting 5 and the 3rd is taken a sample test part 6,6 '; Take out synchronously and draw endovascular blood and get in the large and small duct 862,861 of this needle stand 86, make medical personnel can differentiate this needle body 21 and this conduit 23 fast whether correctly in the intravasation.
Consulting Figure 73, is the present invention's the 37 preferable enforcement, and itself and the 36 preferred embodiment are roughly the same, difference be in:
The surrounding wall 12,32,32 ', 52 of this first, second and third pipe fitting 1,3,3 ', 5 also has with these needle stand 86 protuberances, 865 sockets respectively and is communicated with the elbow 125,325,325 ', 526 in this post hole 869.
Whereby; Medical personnel need only unload aforementioned joint seat 97 and this pipe cage 92 or this base 93 or this base 95 or this joint seat 96; Just can distinguish directly protuberance 865 sockets with elbow 125,325,325 ', 526 and this needle stand 86 of this first, second and third pipe fitting 1,3,3 ', 5; And is communicated with this post hole 869, and can be when the one-handed performance catheter in blood vessel be provided with, take a sample test units synchronization by means of this and take out and draw in endovascular this needle stand 86 of backflow blood entering; And can show the blood back situation fast, make medical personnel can differentiate this needle body 21 and this conduit 23 fast whether correctly in the intravasation.
Consult Figure 74 to Figure 75 and Figure 76; Be the present invention's the 38,39 preferable enforcements; Itself and the 37 preferred embodiment are roughly the same; Can cooperate clinical demand equally, match this joint seat 97 and this pipe cage 92 or this joint seat 96 or this base 93,95, accomplish this conduit 23 and import endovascular operation.Also can match first, second and third pipe fitting 1,3,3 ', 5, cooperate this second to take a sample test part the 4, the 4 ', the 3rd and take a sample test the action that part 6,6 ' is taken a sample test backflow blood synchronously with this elbow 125,325,325 ', 526.
Difference be in; The the 38 and the 39 preferred embodiment shown in Figure 74 to Figure 75 and Figure 76 is respectively to open formula spring 85 (Figure 76) by contraction type spring 83 (Figure 74, Figure 75), bullet to drive the direction displacement of this needle stand 86 along the tube chamber 71 of this socket 7 towards this arrival end 722; This needle body 21 is hidden in the tube chamber 71 of this socket 7, reaches the purpose that safety is isolated needle body 21.
Consult Figure 74, the positioning end 832 of this contraction type spring 83 can be hooked on the position of these socket 7 tube walls 72 and contiguous this arrival end 722 equally, or shown in Figure 75, this positioning end 832 also can be fixed with this end cap 74.
What deserves to be mentioned is; Be to utilize this group control 84 to start aforementioned bullet to open formula spring 85 or contraction type spring 83 in the aforementioned embodiment; Also can directly cooperate this forward and backward locating hole 731,732 like Figure 33 with manual mode; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85 or contraction type spring 83
Consulting Figure 77～Figure 81, is the present invention's the 40,41,42 preferable enforcements, and it is roughly the same with the 37,38,39 preferred embodiments respectively, difference be in:
These socket 7 tube walls 72 also have the enlarging 729 in abutting connection with this port of export 721.
The needle stand 86 of this needle body pumpback unit 8 is to be set in the enlarging 729 of this socket 7 with this first ring wall 863.
The needle body 21 of this pin group 2 is can unload liftoff first ring wall 863 that is nested with at this needle stand 86 by this connecting base 25, and this needle body 21 is communicated with these needle stand 86 large and small ducts 862,861.
During use, need only unload this needle guard 24 ' earlier, can cooperate clinical demand equally, match this joint seat 97 and this pipe cage 92 or this joint seat 96 or this base 93,95, accomplish this conduit 23 and import endovascular operation.Also can match first, second and third pipe fitting 1,3,3 ', 5 with this elbow 125,325,325 ', 526; Cooperate this second to take a sample test part the 4, the 4 ', the 3rd and take a sample test the action that part 6,6 ' is taken a sample test backflow blood synchronously, differentiate this needle body 21 and this conduit 23 fast whether correctly in the intravasation.
Same, after medical personnel unload this catheter block 22 and this conduit 23, need only be to grip the finger of this socket 7; Remove the positioning relation in this needle stand 86 and these socket 7 prelocalization holes 731, just can shown in Figure 78, utilize this needle stand 86 of manual mode slippage; Or shown in Figure 79, Figure 80, utilize 83 these needle stand 86 slippages of traction of contraction type spring, or shown in Figure 81; Utilize bullet to open these needle stand 86 slippages of formula spring 85 pushing and withstanding, this needle body 21 is hidden in the tube chamber 71 of this socket 7 with this needle stand 86.
At last, this needle guard 24 ' is passed the enlarging 729 of this socket 7, and return and be enclosed within on this connecting base 25 (like Figure 78), make this needle guard 24 ' coat this needle body 21, and can isolate this needle body 21 fully with these socket 7 tube walls 72 and this needle guard 24 '.
Consult Figure 79, the positioning end 832 of this contraction type spring 83 can be hooked on the position of these socket 7 tube walls 72 and contiguous this arrival end 722 equally, or shown in Figure 80, this positioning end 832 also can be fixed with this end cap 74.
What deserves to be mentioned is; Be to utilize this group control 84 to start aforementioned bullet to open formula spring 85 or contraction type spring 83 in the present embodiment; Also can directly cooperate this forward and backward locating hole 731,732 like Figure 33 with manual mode; Or cooperate the setting of this transfer leg 733 with manual mode like Figure 38, start aforementioned bullet and open formula spring 85.
Can know that according to the above the intravenous catheter setting device of taking a sample test blood back of the present invention has advantage and effect:
1. the present invention is with being provided with this conduit 23, and takes a sample test binomial function such as blood, or simultaneously with this conduit 23 being set, taking a sample test backflow blood; And hiding three functions such as these needle body 21 grades; Not only can reach the purpose of isolating this needle body 21, and can be indeterminate to blood pressure deficiency or target blood outward appearance, need the sick body of the property surveyed puncture; When infusion catheter is provided with in carrying out vein blood vessel; Take a sample test the operation of backflow blood synchronously, make medical personnel this needle body of correct decision 21 and this conduit 23 whether in the correct intravasation fast, and can promote efficient, convenience and the safety that clinical treatment is used; As far as the emergency treatment patient, be the help key of striving for treating prime time.
2. the present invention need only remove the positioning relation of this needle stand 81,86 and this socket 7 by the finger that is held on this socket 7, just can utilize the manual mode or the mode of elastic force; Make this needle stand 81,86 drive this needle body 21 along these socket 7 tube chambers 71 slippages; And this needle body 21 is hidden in this socket 7, reach the purpose of isolating this needle body 21, not only more simple and easy in operation; And can be with one-handed performance, and with safer, mode is accomplished the action of hiding this needle body 21 more easily.

Claims (6)

1. the intravenous catheter setting device that can take a sample test blood back is characterized in that it comprises:
One takes a sample test the unit; Have one the 3rd pipe fitting and the 3rd and take a sample test part, the 3rd pipe fitting has a surrounding wall that centers on an axis and define a chamber, and a barriers; This surrounding wall supply to be hold by one hand and have a reverse arrival end and a port of export, in abutting connection with a big caliber section of this arrival end; And in abutting connection with this port of export and with the banded tubule of this catheter block footpath section, this barriers is to be contained in this big caliber section, and has ventilative and intercept the effect that blood passes through; The 3rd to take a sample test part be to be set in the chamber of the 3rd pipe fitting, and have a tube chamber of instant formation utmost point low pressure state; And
One pin group; Have and take a sample test the unit with this and be connected and be set in this and take a sample test a needle body outside the unit, can unload liftoff and the belled catheter block of this tubule footpath section; Reach a flexible conduit that links and supply this needle body to pass with this catheter block; This needle body has and places into the puncture of one first in the 3rd pipe fitting chamber section, and passes one second puncture section of the 3rd pipe fitting, this catheter block and this conduit, and this first puncture section is used to pierce through with the 3rd takes a sample test that part is pushed and mobile barriers; The tube chamber that makes this needle body and the 3rd take a sample test part utmost point low pressure state is communicated with, and produces the effect that the purt suction and pumping are drawn whereby.
2. the intravenous catheter setting device of taking a sample test blood back as claimed in claim 1; It is characterized in that; This pin group also has a connecting base that is nested with in the 3rd pipe fitting surrounding wall tubule footpath section, and first, second puncture section of this needle body is separated attitude, and this second puncture section is to link with this connecting base with one fixed; And this catheter block is to be nested with on this connecting base, and a cutting tip that makes this needle body be in reverse to this Fixed Division passes this conduit.
3. the intravenous catheter setting device of taking a sample test blood back as claimed in claim 1; It is characterized in that; The surrounding wall of the 3rd pipe fitting also has a clipping ring that is formed on this big caliber section one inner surface, and placing restrictions on this barriers can only displacement between this needle body and this clipping ring.
4. the intravenous catheter setting device of taking a sample test blood back as claimed in claim 1; It is characterized in that; The 3rd takes a sample test part has around this axis and forms a chamber wall, plug part and a closure member of this tube chamber; This chamber wall has a reverse forward open end and a rear open end, and this plug spare is after inserting this tube chamber with this closure member by this forward open end, and sealing airtightly fixes in this chamber wall forward open end; This closure member be airtightly in this tube chamber slippage and sealing fix in this chamber wall rear open end, make this tube chamber form utmost point low pressure state.
5. the intravenous catheter setting device of taking a sample test blood back as claimed in claim 4; It is characterized in that the 3rd takes a sample test part also has a pull bar, this pull bar is to be placed in this tube chamber by this chamber wall rear open end; And this closure member of fixing interlock is by the position of contiguous this forward open end of this tube chamber and this plug part; Towards the displacement airtightly of this rear open end, and the location fixing makes the instant utmost point low pressure state that forms in this tube chamber in the position of contiguous this rear open end of this chamber wall.
6. the intravenous catheter setting device of taking a sample test blood back as claimed in claim 5; It is characterized in that; The 3rd take a sample test part the chamber wall have an edge clipping that is formed on an inner surface and contiguous this rear open end; And this pull bar have supply this closure member fix interlock a bar head, connect this bar head and part passes a shaft of this tube chamber, and be formed on the breach between this bar head and this shaft, this bar head has with this edge clipping and fastens a localized flange; Borrow this shaft this bar head of traction and this closure member position by contiguous this forward open end of this tube chamber and this plug part; Towards the displacement airtightly of this rear open end, make the flange of this bar head fix in this chamber this breach dialysis of wall edge clipping tailing edge, abandon this shaft, and the instant tube chamber that forms utmost point low pressure state of making.
CN2006100746277A 2005-09-19 2006-04-20 Venous catheter setter capable of drawing and detecting return blood Expired - Fee Related CN1935285B (en)

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CN2006100746277A CN1935285B (en) 2005-09-19 2006-04-20 Venous catheter setter capable of drawing and detecting return blood

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CN200510103947.6 2005-09-19
CN200510103947 2005-09-19
CN2006100746277A CN1935285B (en) 2005-09-19 2006-04-20 Venous catheter setter capable of drawing and detecting return blood

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2909183C (en) * 2013-04-15 2020-08-04 Craig A. Gelfand Blood sampling transfer device
CN113491803B (en) * 2020-03-21 2022-11-11 贵州医科大学附属医院 Paediatrics is with fixing protective equipment of remaining needle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904240A (en) * 1988-06-09 1990-02-27 Hoover Rocklin L Method and apparatus for starting intravenous solutions
EP0824932A2 (en) * 1996-08-23 1998-02-25 Becton, Dickinson and Company Arterial catheter and catheter/needle assembly with improved flow characteristics and method for its use
CN2321456Y (en) * 1998-01-01 1999-06-02 俞淑荣 Vein indwelling needle blood back-flow device
CN2576250Y (en) * 2002-10-23 2003-10-01 许明正 Safety syringe tube
EP1378263A2 (en) * 1998-07-31 2004-01-07 MDC Investment Holding, Inc. Retractable needle medical device
CN1520890A (en) * 2003-02-13 2004-08-18 许明正 Safe apparatus with injection and hemospasia function
CN1552471A (en) * 2003-05-30 2004-12-08 许明正 Disposable syringe
CN1621101A (en) * 2003-11-25 2005-06-01 许明正 Medical appliances

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904240A (en) * 1988-06-09 1990-02-27 Hoover Rocklin L Method and apparatus for starting intravenous solutions
EP0824932A2 (en) * 1996-08-23 1998-02-25 Becton, Dickinson and Company Arterial catheter and catheter/needle assembly with improved flow characteristics and method for its use
CN2321456Y (en) * 1998-01-01 1999-06-02 俞淑荣 Vein indwelling needle blood back-flow device
EP1378263A2 (en) * 1998-07-31 2004-01-07 MDC Investment Holding, Inc. Retractable needle medical device
CN2576250Y (en) * 2002-10-23 2003-10-01 许明正 Safety syringe tube
CN1520890A (en) * 2003-02-13 2004-08-18 许明正 Safe apparatus with injection and hemospasia function
CN1552471A (en) * 2003-05-30 2004-12-08 许明正 Disposable syringe
CN1621101A (en) * 2003-11-25 2005-06-01 许明正 Medical appliances

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EP 1378263 A2,说明书全文.

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