CN103285449A - Puncture-proof indwelling needle - Google Patents
Puncture-proof indwelling needle Download PDFInfo
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- CN103285449A CN103285449A CN2013100325812A CN201310032581A CN103285449A CN 103285449 A CN103285449 A CN 103285449A CN 2013100325812 A CN2013100325812 A CN 2013100325812A CN 201310032581 A CN201310032581 A CN 201310032581A CN 103285449 A CN103285449 A CN 103285449A
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- needle
- perverse
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- catheter block
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Abstract
A puncture-proof indwelling needle is characterized in that a cavity is formed in a tubular catheter seat (4) in the axial direction; the front end of the cavity is connected with a catheter (2); the front end of the catheter (2) is provided with an indwelling needle opening (1); the inner cavity at the rear end of the catheter seat (4) is a Luer taper (10); meanwhile, the rear end of the Luer taper (10) is connected with a needle bed (5) through a puncture-proof joint (8); and the rear part of the needle bed (5) is connected with a backflow device (6). Through the additional arrangement of the puncture-proof joint at the front end of the needle bed and the mutual linkage coordination of a puncture-proof spring plate, a hook and a clamp, not only the normal use is guaranteed, but also a needle point is wrapped effectively and the needle point and an external base are sealed during safe needle withdrawing so as to avoid the risk that the indwelling needle hurts medical personnel by mistake during use; and the puncture-proof indwelling needle has a simple structure, is convenient to operate and facilitate the improvement on the prior art.
Description
Technical field
The present invention relates to International Classification of Patents A61M5 and import medium in the human body or be passed to technique with the apparatus field on the human body, belong to a kind of medical infusion indwelling needle device, especially anti-stab remaining needle.
Background technology
In the prior art, transfusion every day of part needs of patients is arranged, in order to alleviate the patient suffering, in this case, be fixed on behind the one-time puncture that the injection site is standby at any time to be put that let the acupuncture needle remain at a certain point technology begins extensively to be paid attention in continuous many days, but, because the stainless pin needle tubing that uses can not be stayed in the blood vessel for a long time, for avoiding venipuncture every day, adopt the way of remaining needle now, be that remaining needle penetrates behind the blood vessel and is surrounded by sleeve pipe outward because of its stainless pin needle tubing, this sleeve pipe also with while intravasation under the guiding of stainless pin needle tubing, is transferred to stainless pin needle tubing sleeve pipe to stay in the blood vessel then and just can be kept about 7 days.Yet, along with putting the application that let the acupuncture needle remain at a certain point, the deficiency of potential safety hazard has also appearred existing in its use, as, patient's struggle is appearring in the needle tubing of the remaining needle that uses when transfering to or the doctor operates under the neglectful fortuitous event, can cause needle point to accidentally injure the implementation and operation medical personnel, so, when using the remaining needle product to patients with infectious diseases, medical personnel will bear great risk.
Less to correlation technique from the disclosed Searches of Patent Literature, as Chinese patent application number 201010162187.7 1 kinds of needle puncture-preventing remaining needles, remaining needle needle stand and catheter block are connected, catheter block front end fixed sleeving, be needle tubing in the middle of the sleeve pipe, the needle stand other end connects exhaust joint, exhaust joint has head protector, be provided with an elasticity needle point guard spare in the catheter block, needle tubing passes this elasticity needle point guard spare, the needle tubing card that needle tubing is provided with is mixed diameter greater than the hole of threading a needle on this elasticity needle point guard spare rear wall, elasticity needle point guard spare is provided with the needle point guard card and mixes, and this needle point guard card is mixed and be may be stuck on the catheter block draw-in groove that the catheter block rear end is provided with, when described needle tubing is extracted from catheter block, the needle point guard card is mixed and can be broken away from described catheter block draw-in groove, and elasticity needle point guard spare is extracted catheter block together with needle tubing parcel and needle tubing.
And for example, 201020687126.8 1 kinds of anti-acupuncture venous detaining needles are made up of needle shield, conduit tube component, puncture needle assembly; Conduit tube component comprises conduit, threeway catheter block, funnel, sealing-plug, flexible pipe, threeway seat, calparine cap, end cap, clip; The puncture needle assembly comprises puncture needle tubing, band wing needle stand and Needlestick prevention device; Needlestick prevention device is made up of connector, hollow sliding sleeve and sealed button.
And for example; 200720039137.3 safe type retention needle; comprise puncture needle; conduit; catheter block; puncture needle comprises notch needle tubing and side handle; the front portion of notch needle tubing is provided with the side channel hole; the rear portion of catheter block is provided with resilient protection spare; the top of resilient protection spare is provided with downward fixture block; the length that resilient protection spare is positioned at the fixture block front portion is positioned at the length of front portion, side channel hole greater than the notch needle tubing; the bottom of resilient protection spare is provided with the locating slot of shelving puncture needle; when puncture needle was extracted catheter block, the side channel hole of the fixture block card entry slot lancet pipe of resilient protection spare made resilient protection spare wrap in notch needle tubing head and extracts catheter block with puncture needle.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of anti-stab remaining needle, increases succinct needle tip guard etc., and needle point is encased needle point by special parts after needle tubing is transferred to, even accident is met medical personnel, also can not cause injury under the protection of special parts.
Realize that goal of the invention measure of the present invention is: tubular guidewire base inner shaft is to there being cavity, this cavity front end connecting duct, and catheter proximal end has the remaining needle mouth, catheter block rear end inner chamber is female Luer, simultaneously, the female Luer rear end connects needle stand by anti-perverse joint, connects return channel at the needle stand rear portion.
The invention has the advantages that, by install anti-perverse joint additional at the needle stand front end, in case being linked mutually of stumbling of perverse shell fragment, hook and card, not only guaranteed normal the use but also safety when realizing the withdraw of the needle, effectively encase needle point and seal needle point and extraneous basis, avoid using remaining needle to accidentally injure medical worker's danger, simple in structure, easy to operate, be convenient to prior art is improved.
Description of drawings
Fig. 1 is parts disassemblying structure sketch map of the present invention
Fig. 2 is the local structure for amplifying schematic cross-section of the anti-perverse joint among Fig. 1
Fig. 3 is external structure sketch map of the present invention
Fig. 4 is the dosing mouth internal structure enlarged diagram among the present invention
Fig. 5 is the example structure partial schematic diagram of the external mobile wing in catheter block position among the present invention
Fig. 6 is the example structure partial schematic diagram of the external fixed tab of female Luer among the present invention
Fig. 7 is the example structure partial schematic diagram that catheter block and female Luer do not connect fin outward
Reference numeral comprises:
Remaining needle mouth 1, conduit 2, fin 3, catheter block 4, needle stand 5, return channel 6, dosing mouth 7, anti-perverse joint 8, helmet 9, female Luer 10, hook 11, hook axle 12, core 13, card stumbles 14, anti-perverse shell fragment 15, power-assisted point 16, outer cone 17, needle tubing 18, flexible pipe 19, core chamber 20.
The specific embodiment
Below further specify by drawings and Examples.
As Fig. 1, shown in Figure 3, tubular guidewire base 4 inner shaftes are to cavity being arranged, this cavity front end connecting duct 2, conduit 2 front ends have remaining needle mouth 1, and catheter block 4 rear ends connect female Luer 10, simultaneously, female Luer 10 rear ends connect needle stand 5 by anti-perverse joint 8, connect return channel 6 at needle stand 5 rear portions.
Especially, as shown in Figure 2, intrasegmental part has core chamber 20 in the anti-perverse joint 8, anti-perverse joint 8 is in the logical core chamber 20 of front end outer wall perforate, hook 11 is hingedly mounted in the perforate by hook axle 12, hook 11 front ends collude tooth and stretch out outside the anti-perverse joint 8, and anti-perverse joint 8 axial front and back ends have the ozzle that stretches out respectively, this front and back end ozzle hollow also is communicated with core chamber 20, wherein, grafting hollow plunger shape core 13 in the ozzle inner chamber of rear end, at core 13 left side oral areas outstanding mouth edge of one shape is arranged, grafting needle tubing 18 in the core 13, there is card to stumble 14 at needle tubing 18 outer walls, card is stumbled and 14 is positioned at core 13, block the opening of 14 outer walls greater than core 13 intracavity posterior ends of stumbling, simultaneously, the axial cross section center line becomes the anti-perverse shell fragment 15 of W type to be installed in 20 inside, core chamber, in 20 bottom surfaces, core chamber one projection is arranged, anti-bottom surface, perverse shell fragment 15 middle part epirelief is stuck in this projection top, volume forms power-assisted point 16 and holds out against core 13 front end lower edges on anti-perverse shell fragment 15 rear ends, volume blocks the needle point that anti-perverse joint 8 and core chamber 20 inner chamber axial passages and elasticity encase needle tubing 18 front ends on anti-perverse shell fragment 15 front ends, hook 11 rear ends break away from front end the mouth of core 13, the inclined-plane leans forward in hook 11 afterbody bottoms, aligned with core chamber 20 axis, lower edge, hook 11 middle part fluting is aimed at anti-perverse shell fragment 15 front end upper edges.
In aforementioned, bore matches with 6:100 conehead, awl mouth in anti-perverse joint 8 front end ozzle external diameters and female Luer 10 rear ends, and hook 11 front ends collude tooth and give prominence to the position with female Luer 10 rear end outer rims and engage.
In aforementioned, anti-perverse joint 8 front end ozzle peripheries have 6:100 outer cone 17.
As shown in Figure 4, dosing mouth 7 is outer adds a cover helmet 9, and dosing mouth 7 inner chamber admittance bases 4 its inner chambers are with catheter block 4 one-tenth T fonts cavity and communicate, catheter block 4 inner chambers serve as a contrast into flexible pipe 19.Through dosing mouth 7 dosings the time, flexible pipe 19 reaches can dosing and the valve effect of anti-liquid lumen extracorporeal flow.
Embodiment as catheter block 4 and female Luer 10 external structures:
As shown in Figure 5, catheter block 4 outer socket fins 3, fin 3 is mobile wing, that is, catheter block 4 exterior pieces 3 are mobile wing, connect the outer end that fin 3 is connected to catheter block 4.
As shown in Figure 6, perhaps, be connected and fixed fin 3 outside the catheter block 4, fin 3 is fixed on catheter block 4 middle part outer rims, that is, and and the fin 3 that catheter block 4 outer gardens are fixed as one.
As shown in Figure 7, catheter block 4 and the female Luer 10 outer fins 3 that do not connect.
Whole part of preventing that perverse assembly is broken away from that it should be noted that anti-perverse joint 8 is overall structure, and namely catheter block 4, anti-perverse joint 8 and needle stand 5 are separately independently.
Among the present invention, when not using, terminate at before the return channel 6 on the needle stand 5, needle stand 5 front ends connect needle tubing 18, the putting that let the acupuncture needle remain at a certain point and mouthful 1 pass anti-perverse joint 8 of needle tubing 18 front ends, female Luer 10, catheter block 4, the oral area of conduit 2 is stretched out in axle center such as conduit 2, needle stand 5 is connected with anti-perverse joint 8 rear ends, anti-perverse joint 8 front end outer cones are connected with female Luer 10 female cones, hook 11 simultaneously is fulcrum by hook axle 12, its afterbody rides over core 13 front ends mouthful thickness, make hook 11 firmly catch on the projection at female Luer 10 places with its supporting force, thereby each parts is linked together.
In use, to put earlier that let the acupuncture needle remain at a certain point mouthful 1, conduit 2 interts in the blood vessel of patient body, again with fixed tab 3, the indwelling equipment that the female Luer 10 of catheter block 4 and rear end constitutes is fixed with a hands, another Zhi Shou Photo lives needle stand 5 and pulls out the needle tubing 18 that is connected with needle stand 5, needle tubing 18 front end cards stumble 14 and mouthful 1 inner core chamber 20 that is retracted into anti-perverse joint 8 of putting that let the acupuncture needle remain at a certain point, card is stumbled and 14 is retracted into core 13 after continuing and is blocked until it subsequently, because of the card opening of 14 outer rims greater than piston-shaped inner chamber core 13 rear ends of stumbling, at this moment move after blocking 14 drive the cores 13 of stumbling, it is close to the axle center that this moment, hook 11 rear ends broke away from the support of core 13 big mouthfuls, and when core 13 retreats its big mouthful pushing tow power-assisted point 16, make and prevent hook 11 middle front part bottom surfaces in top on perverse shell fragment 15 front ends, simultaneously needle tubing 18 front ends are put that let the acupuncture needle remain at a certain point and mouthful 1 are retracted into backward after the anti-perverse shell fragment 15, hook 11 front ends collude tooth and are released, then anti-perverse joint 8 and female Luer 10 safe escapes, at this moment, needle tubing 18 front end remaining needle mouths 1 not only close in the anti-perverse joint 8, and there are anti-perverse shell fragment 15 bags to keep off, even under the repress behind hook 11 front ends, needle tubing 18 put that let the acupuncture needle remain at a certain point mouthful 1, can not stretch out forward again.
In above embodiment, do not reach the employing prior aries such as other necessary technologies that relate to enforcement of narration, enumerate detailed description no longer successively.
Claims (11)
1. anti-stab remaining needle, it is characterized in that: tubular guidewire base (4) inner shaft is to cavity is arranged, this cavity front end connecting duct (2), conduit (2) front end has remaining needle mouth (1), catheter block (4) rear end inner chamber is female Luer (10), simultaneously, female Luer (10) rear end connects needle stand (5) by anti-perverse joint (8), connects return channel (6) at needle stand (5) rear portion.
2. anti-stab remaining needle as claimed in claim 1, it is characterized in that, intrasegmental part has core chamber (20) in the anti-perverse joint (8), anti-perverse joint (8) is in the logical core chamber (20) of front end outer wall perforate, hook (11) is hingedly mounted in the perforate by hook axle (12), hook (11) front end colludes tooth and stretches out outside the anti-perverse joint (8), and anti-perverse joint (8) axially has the ozzle that stretches out respectively in the front and back end, this front and back end ozzle hollow also is communicated with core chamber (20), wherein, grafting hollow plunger shape core (13) in the ozzle inner chamber of rear end, at core (13) left side oral area the outstanding mouth edge of one shape is arranged, the interior grafting needle tubing of core (13) (18), at needle tubing (18) outer wall card stumble (14) is arranged, block stumble (14) and be positioned at core (13), block the opening of (14) outer rim greater than core (13) intracavity posterior end of stumbling, simultaneously, the axial cross section center line becomes the anti-perverse shell fragment (15) of W type to be installed in inside, core chamber (20), in bottom surface, core chamber (20) one projection is arranged, bottom surface, anti-perverse shell fragment (15) middle part epirelief is stuck in this projection top, volume forms power-assisted point (16) and holds out against core (13) front end lower edge on anti-perverse shell fragment (15) rear end, volume blocks the needle point that anti-perverse joint (8) and core chamber (20) inner chamber axial passage and elasticity encase needle tubing (18) front end on anti-perverse shell fragment (15) front end, hook (11) rear end breaks away from front end the mouth of core (13), the inclined-plane leans forward in hook (11) afterbody bottom, aligned with core chamber (20) axis, lower edge, hook (11) middle part fluting is aimed at anti-perverse shell fragment (15) front end upper edge.
3. anti-stab remaining needle as claimed in claim 1 is characterized in that, catheter block (4) outer wall is opened dosing mouth (7), the outer helmet (9) of adding a cover of dosing mouth (7).
4. anti-stab remaining needle as claimed in claim 1, it is characterized in that, bore matches with 6:100 conehead, awl mouth in anti-perverse joint (8) front end ozzle external diameter and female Luer (10) rear end, and hook (11) front end colludes tooth and gives prominence to the position with female Luer (10) rear end outer rim and engage.
5. anti-stab remaining needle as claimed in claim 3, it is characterized in that, the outer helmet (9) of adding a cover of dosing mouth (7), its inner chamber of dosing mouth (7) inner chamber admittance base (4) become T font cavity with catheter block (4) and communicate, catheter block (4) inner chamber serves as a contrast into flexible pipe (19).
6. anti-stab remaining needle as claimed in claim 1 is characterized in that, the fin (3) that the outer garden of catheter block (4) is fixed as one.
7. anti-stab remaining needle as claimed in claim 1 is characterized in that, catheter block (4) exterior piece (3) is mobile wing, connects the outer end that fin (3) is connected to catheter block (4).
8. anti-stab remaining needle as claimed in claim 1 is characterized in that, catheter block (4) exterior piece (3) is mobile wing, and socket fin (3) is socketed in the outer end of catheter block (4).
9. anti-stab remaining needle as claimed in claim 1 is characterized in that, the outer fin (3) that is connected and fixed of catheter block (4), and fin (3) is fixed on catheter block (4) middle part outer rim.
10. as claimed in claim 1ly anti-stably put that let the acupuncture needle remain at a certain point, it is characterized in that there is 6:100 circular cone (17) anti-perverse joint (8) front end ozzle outer.
11. as claimed in claim 1ly anti-stably put that let the acupuncture needle remain at a certain point, it is characterized in that the part that the whole anti-perverse assembly of anti-perverse joint (8) is broken away from is overall structure, namely catheter block (4), anti-perverse joint (8), needle stand 5 are separately independently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310032581.2A CN103285449B (en) | 2012-09-04 | 2013-01-28 | Puncture-proof indwelling needle |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210322785 | 2012-09-04 | ||
| CN2012103227855 | 2012-09-04 | ||
| CN201210322785.5 | 2012-09-04 | ||
| CN201310032581.2A CN103285449B (en) | 2012-09-04 | 2013-01-28 | Puncture-proof indwelling needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103285449A true CN103285449A (en) | 2013-09-11 |
| CN103285449B CN103285449B (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310032581.2A Active CN103285449B (en) | 2012-09-04 | 2013-01-28 | Puncture-proof indwelling needle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107469189A (en) * | 2017-08-03 | 2017-12-15 | 安徽迈菲思医疗器械有限公司 | A kind of safety indwelling needle |
| CN108065987A (en) * | 2016-11-14 | 2018-05-25 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN108744142A (en) * | 2018-06-22 | 2018-11-06 | 江苏苏云医疗器材有限公司 | Anti- safety of acupuncture type remaining needle |
| WO2019024073A1 (en) * | 2017-08-03 | 2019-02-07 | 安徽迈菲思医疗器械有限公司 | Safety indwelling needle |
| CN109893713A (en) * | 2019-03-22 | 2019-06-18 | 江苏苏云医疗器材有限公司 | Anti- needle pierces indwelling needle assembly |
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| CN2067579U (en) * | 1990-06-05 | 1990-12-19 | 乐清县华东医疗仪器厂 | Needle for retention in central vein |
| US6203527B1 (en) * | 1994-03-29 | 2001-03-20 | Filiberto P. Zadini | Bi-directional clamping guard for needle stick protection |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108065987A (en) * | 2016-11-14 | 2018-05-25 | 江苏阳普医疗科技有限公司 | A kind of safety bushing pin |
| CN108065987B (en) * | 2016-11-14 | 2023-10-31 | 江苏威茂医疗科技有限公司 | Safe type sleeve needle |
| CN107469189A (en) * | 2017-08-03 | 2017-12-15 | 安徽迈菲思医疗器械有限公司 | A kind of safety indwelling needle |
| WO2019024073A1 (en) * | 2017-08-03 | 2019-02-07 | 安徽迈菲思医疗器械有限公司 | Safety indwelling needle |
| CN108744142A (en) * | 2018-06-22 | 2018-11-06 | 江苏苏云医疗器材有限公司 | Anti- safety of acupuncture type remaining needle |
| CN108744142B (en) * | 2018-06-22 | 2024-02-27 | 江苏苏云医疗器材有限公司 | Anti-needling safety indwelling needle |
| CN109893713A (en) * | 2019-03-22 | 2019-06-18 | 江苏苏云医疗器材有限公司 | Anti- needle pierces indwelling needle assembly |
| CN109893713B (en) * | 2019-03-22 | 2023-11-14 | 江苏苏云医疗器材有限公司 | Needle-stick-preventing indwelling needle assembly |
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|---|---|
| CN103285449B (en) | 2015-02-25 |
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Address after: Jiading District Cao Road, Shanghai No. 4671 building 24 201804 Applicant after: SHANGHAI PUYI MEDICAL INSTRUMENTS CO., LTD. Address before: Jiading District Cao Road, Shanghai No. 4671 building 24 201804 Applicant before: Shanghai Puyi Medical Instruments Co., Ltd. |
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