CN100398164C - Safety injection needle cylinder - Google Patents
Safety injection needle cylinder Download PDFInfo
- Publication number
- CN100398164C CN100398164C CNB2004100316617A CN200410031661A CN100398164C CN 100398164 C CN100398164 C CN 100398164C CN B2004100316617 A CNB2004100316617 A CN B2004100316617A CN 200410031661 A CN200410031661 A CN 200410031661A CN 100398164 C CN100398164 C CN 100398164C
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- main body
- needle cylinder
- cylinder main
- spike body
- spike
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Abstract
The present invention relates to a safe injection needle cylinder which is mainly an injection needle cylinder comprising a needle cylinder main body, a pushing rod, a needle head main body and a protecting sleeve pipe. The safe injection needle cylinder is characterized in that medicaments are directly filled in a medicament pipe from the side surface of the needle cylinder main body, and in this way, the medicaments can be conveniently filled, and the use is safe; the front end of the needle cylinder main body is provided with a connecting part provided with an inner screw thread and is in screw connection with the needle head main body, so the needle cylinder main body can be made of jettisonable plastic and can be discard after being used without repeated disinfection to stop infection caused by incomplete disinfection.
Description
Technical field
The present invention is a kind of high-safety injection tube, refers to a kind of belonging in the medical device technical field, a kind of jettisonable injection tube with protective sleeve design.
Background technology
According to; United States Patent (USP) numbers the 4th; 772; No. 272 patents of invention " entry needle protective sleeve " (NEEDLEPROTECTIVE SLEEVE); be utilize one can be in sliding on the syringe and the design of localized protective sleeve (protective sleeve 10) on diverse location, the danger that infection is arranged to avoid user to be subjected to that syringe needle is stabbed.
Aforementioned this kind the 4th; 772; " entry needle protective sleeve " U.S.'s patent of invention of No. 272; though it is very excellent in the design of protective sleeve; owing to be that more special rustless steel injection tube uses in the present medical device of cooperation in its design; and this kind rustless steel injection tube is high owing to cost, therefore normally reuses after the sterilization, in case the anxiety that sterilization just can cause sufferer to be infected when complete inadequately again.
In addition, as shown in figure 10, this kind rustless steel injection tube B is when filling medicament pipe I, be that the push rod of this rustless steel injection tube B end is pulled folding downwards, and make the injection tube end expose an inlet P, again medicament pipe I is packed in the injection tube B by rear inlet P, changes different injection medicament I, so in the replacing operation of medicament, seemingly comparatively bother with this.
Summary of the invention
In view of this inventor through constantly test and test, improves finally and invents out a kind of high-safety injection tube, comprises a needle cylinder main body, a spike body, a push rod and a protective casing, wherein:
Inner tool one containing hole of this needle cylinder main body, this needle cylinder main body one end is can be for the push rod guide hole of push rod embedding, end then forms a convergence part in addition, the free end of this convergence part then is arranged with an inner bolt hole, this inner bolt hole is connected with containing hole with a perforation, again on one's body the side neck of this needle cylinder main body, then form a medicament filling notch, this medicament filling notch is communicated in containing hole, and the width that makes this medicament filling notch is slightly larger than the diameter of standard medicament pipe, and the length of this medicament filling notch then is slightly larger than the length of standard medicament pipe, and the both sides stack shell that makes needle cylinder main body be positioned at the medicament filling notch is to form the slightly elastic state of tool;
One end of this push rod is to be embedded in by the push rod guide hole of needle cylinder main body in the needle cylinder main body storage tank;
This spike body is to protrude out a pricker towards an end of needle cylinder main body, and the end in addition of this spike body is with respect to the position of pricker, then protrude out an entry needle, this entry needle forms with tiny perforation with this pricker inside and is communicated with, this spike body is near on all sides of entry needle end again, protruding distributes forms more than one at least guiding projection, an elasticity fixture block and an oblique projection, and make all side of this spike body near the thorn needle end part, then be provided with a screw part that can be screwed together in the convergence part inner bolt hole of this needle cylinder main body;
The internal diameter of this protective casing endoporus is slightly larger than the diameter of needle cylinder main body; one end of this protective casing forms the opening endoporus that can be placed on this spike body and needle cylinder main body; this protective casing endoporus is respectively guided the bump position place with respect to spike body; being arranged with can be for a guide channel that body guiding projection passes through; this protective casing is corresponding to the relative position place of the oblique projection of spike body again; then wear a locating slot; so that protective casing is when being placed on spike body; come to form the location with locating slot for oblique projection inlay card; and this protective casing is equivalent to the side in addition of locating slot; then being provided with one can be when protective casing be placed on spike body; the Elastic buckle of corresponding pushing elasticity fixture block; this protective casing differs from the end in addition of bore openings again, and then constriction forms the hole of threading a needle that can pass through for the entry needle of this spike body.
Specifically, the screw part of this spike body, be in spike body near on the periphery of pricker one end, be convexly equipped with out two spiral shell projections, two spiral shell projections are that to be 180 degree spaced apart, use that two spiral shell projections can be screwed in the inner bolt hole of needle cylinder main body convergence part.
Wherein, an end of this spike body tool pricker is to be arranged with formation one can form the inner bolt hole that screws togather with the end thread of commonly using the rustless steel injection tube.
Wherein, this needle cylinder main body is a plastic.
Wherein, the guiding projection of this spike body is to be two, and makes two guiding projections be 180 degree symmetrical distributions.
Wherein, the elasticity fixture block of this spike body is to be arranged at stagger the guiding projection and the oblique position of projection, and is elastic stage and protrudes out.
Wherein, the oblique projection of this spike body is with the side in addition with respect to the elasticity fixture block, and the outside forms oblique protruding out towards the pricker direction towards spike body.
Therefore, the present invention has the following advantages:
One, the present invention utilizes the design of medicament filling notch, and makes the medicament pipe directly can load required medicament in the medicament filling notch, has the medicament convenient filling, can not suffer the advantage of needle sting because of careless manipulation.
Two, syringe of the present invention can utilize plastics to make, and directly abandons after finishing using, and need not repeated disinfection and uses, and has and stops because of the careless advantage that catches of sterilizing.
Three, spike body of the present invention can be screwed with the rustless steel injection tube of prior art, thereby makes spike body of the present invention can be applicable to the rustless steel injection tube of plastic needle cylinder of the present invention and prior art simultaneously.
For purpose of the present invention, effect and feature can more specifically be understood, existing with preferred embodiment of the present invention and be aided with graphic being described in detail as follows.
Description of drawings
Fig. 1 is the stereoscopic figure of high-safety injection tube of the present invention;
Fig. 2 is the three-dimensional exploded view of high-safety injection tube of the present invention;
Fig. 2 B is the partial enlarged drawing of Fig. 2 A;
Fig. 2 C is the combination section of Fig. 2 B;
Fig. 3 is the high-safety injection tube of the present invention schematic perspective view of medicament before not using of packing into;
The step sketch map is used for high-safety injection tube first to fourth of the present invention in Fig. 4～7;
Fig. 8 is the spike body of high-safety injection tube of the present invention and commonly uses rustless steel injection tube perspective exploded view;
Fig. 9 is the combination section of Fig. 8;
Figure 10 is a use situation schematic perspective view of commonly using the rustless steel injection tube.
The specific embodiment
At first please cooperate referring to shown in Fig. 1～3, high-safety injection tube of the present invention is made of a medicament pipe 50, a needle cylinder main body 10, a push rod 20, a spike body 30 and a protective casing 40, wherein,
This medicament pipe 50, now be all the formulation specification, the pipe body of standard diameter, the blind end 51 of an end for being sealed by soft shape material, hold then for can in medicament pipe 50, form the piston 52 that vertically moves 51 then ccontaining injection medicaments of the piston 52 of medicament pipe 50 and blind end in addition.
This needle cylinder main body 10 is the cylinders for an elongated, and can be plastic, and these needle cylinder main body 10 inside have a containing hole 11 shown in Fig. 2,3; On the end of these needle cylinder main body 10 1 ends, run through a diameter less than containing hole 11 and the push rod guide hole 12 that is connected with containing hole 11; The in addition end of this needle cylinder main body 10 then forms a convergence part 13, and the free end of this convergence part 13 then is arranged with an inner bolt hole 14, and this inner bolt hole 14 is inner and form a perforation 15 and be communicated with containing hole 11 formation of needle cylinder main body 10;
On at least one side of these needle cylinder main body 10 stack shells, then form a medicament filling notch 16, this medicament filling notch 16 is connected with the containing hole 11 of needle cylinder main body 10, and the width that makes this medicament filling notch 16 is slightly less than the diameter of medicament pipe 50, and the length of this medicament filling notch 16, then be slightly larger than the length of medicament pipe 50, and because this needle cylinder main body 10 is to make with plastics, and medicament filling notch 16 is positioned at the stack shell central authorities of needle cylinder main body 10, so make the both side edges of this medicament filling notch 16 form the slightly elastic state of tool, for user when the filling medicament pipe 50, utilize external force to suppress and medicament pipe 50 can be filled in ccontaining location in containing hole 11 by filling notch 16, shown in the dotted arrow of Fig. 2.
This push rod 20 is to be an elongated body of rod, first end of push rod 20 has leader portion 22, its second end then forms the pushing and pressing end 21 that a diameter is slightly less than medicament pipe 50 pistons 52, in addition end form then that shape can conveniently grip for user or pushing push away handle 22 (as shown in Figure 2).
This spike body 30 is (as Fig. 2 B, shown in the 2C) be a short type cylinder, this spike body 30 is to be arranged with to form an inner bolt hole 300 towards an end of needle cylinder main body 10, this inner bolt hole 300 is can form with the end thread B1 of the rustless steel injection tube B that commonly uses to screw togather (shown in Fig. 8-9), and the central interior of this inner bolt hole 300, then protrude out one and can pierce through the pricker 31 of medicament pipe 50 blind ends 51 end faces (as Fig. 2 B towards inner bolt hole 300 openings, shown in the 2C), and the end in addition of this spike body 30 is with respect to the position of pricker 31, then protrude out an entry needle 32, then sheathed one protects needle tubing 320 on this entry needle 32, and this entry needle 32 is communicated with (because this tiny perforation is too little with a tiny perforation formation with pricker 31 inside, and be the design concept of known entry needle, so in drawing, do not draw separately);
This spike body 30 is near on all sides of entry needle 32 ends again, and protruding distributes forms more than one at least guiding projection 33, one elasticity fixture blocks 34 and an oblique projection 35; Wherein this description preferred embodiment of lifting be to disclose a kind ofly to have two guiding projections 33, and two guiding projections 33 is to form the enforcement aspect (shown in Fig. 2 B) that 180 degree are symmetrically distributed; 34 of this elasticity fixture blocks are that the position formation elastic stage that differs from guiding projection 33 and oblique projection 35 protrudes out; As for oblique 35 of projections is to protrude out (shown in Fig. 2 A-2B) so that 30 outsides are oblique towards the pricker direction towards spike body.
In addition, this spike body 30 is near all sides of pricker 31 ends, then be provided with a screw part 36 (shown in Fig. 2 B) that can be screwed together in needle cylinder main body 10 convergence parts 13 inner bolt holes 14, these screw part 36 better embodiment wherein, be can be in spike body 30 near on all sides of pricker 31 1 ends, at least be convexly equipped with out two spiral shell projections 360 (shown in Fig. 2 A-2B), and to make two spiral shell projections 360 be to be 180 degree modes at interval to distribute, this spike body 30 is screwed in the inner bolt hole 14 of needle cylinder main body 10 convergence parts 13 by two spiral shell projections 360, so that can be screwed together on 13 ends, convergence part of needle cylinder main body 10 (as shown in Figure 2).
This protective casing 40 is to be an elongated body, the internal diameter of these protective casing 40 endoporus 41 is slightly larger than the diameter of needle cylinder main body 10, one end of this protective casing 40 forms endoporus 41 openings, so that the endoporus 41 of protective casing 40 can be nested with the spike body 30 and the formation of needle cylinder main body 10 front ends of having made up (as shown in Figure 3), these protective casing 40 endoporus 41 respectively guide projection 33 positions with respect to spike body 30, then respectively being concaved with can be for the guide channel 42 of spike body 30 guiding projections 33 embeddings, and wherein each guide channel 42 is by the inside longitudinal extensions of protective casing 40 endoporus, 41 open side (shown in Fig. 2 A);
This protective casing 40 then wears a locating slot 43 (shown in Fig. 2,3) corresponding to the relative position place of spike body 30 oblique projections 35 again, uses when protective casing 40 is nested with spike body 30, forms the location with locating slot 43 for oblique projection 35 inlay cards.And protective casing 40 is equivalent to the side in addition of locating slot 43 height, then be provided with one can be when the location Elastic buckle 44 (shown in Fig. 2,3) of corresponding pushing elasticity fixture block 34; In addition, the end in addition of this protective casing 40, then constriction forms one and only can wear the hole of passing through 45 of threading a needle (shown in Fig. 2 A-2C) for protecting needle tubing 320.
By this; when high-safety injection tube of the present invention in when combination (as Fig. 2; shown in 3); be that the screw part 36 of spike body 30 and inner bolt hole 14 formation of needle cylinder main body 10 convergence parts 13 are screwed togather (as shown in Fig. 2 C); and be placed on this spike body 30 and the needle cylinder main body 10 with protective casing 40 endoporus 41 ostiolate ends; guide channel 42 with these protective casing 40 endoporus 41 is placed on the guiding projection 33 of spike body 30; and be equipped in oblique projection 35 and elasticity fixture block 34 on the spike body 30 by locating slot on the protective casing 40 43 and Elastic buckle 44 in cover postpone; use and protective casing 40 is nested be positioned on spike body 30 and the needle cylinder main body 10, with this danger of avoiding user stabbed by entry needle 32.
When desire injection of the present invention is used (shown in Fig. 4-7), then the medicament filling notch Final 16 power of medicament pipe 50 by needle cylinder main body 10 is embedded in the containing hole 11 (as shown in Figure 4), what promote push rod 20 again pushes away handle 22, pushing and pressing end 21 promotion medicament pipes 50 with this push rod 20 move, and prop up on the end wall of the containing hole 11 of needle cylinder main body 10 and inner bolt hole 15 connections with blind end 51, the pricker 31 of this spike body 30 is thrust in the blind end 51 of medicament pipe 50 contact (as shown in Figure 5) with medicament.
Next; user is pushed Elastic buckle 44 (shown in the arrow of Fig. 6 stage casing part) on the protective casing 40 with hands again; make the elasticity fixture block 34 that blocking originally is positioned on protective casing 40 Elastic buckles 44 on the spike body 30 break away from the blocking state; again by user with hands with whole protecting sleeve pipe 40 towards needle cylinder main body 10 directions; promptly pass towards the rear (shown in the arrow of Fig. 7), and the entry needle 32 of spike body 30 must be exposed so that implement injection by the hole 45 of threading a needle of this protective casing 40.
In addition; must be emphasized especially; because needle cylinder main body 10 of the present invention, push rod 20, spike body 30 and protective casing 40; all can utilize plastics to be made; so when high-safety injection tube of the present invention after finishing using; protective casing 40 can be returned to again the state that blocking originally is positioned spike body 30; after avoiding other people to suffer stabbing of entry needle 32; whole high-safety injection tube can be abandoned as Biohazard Waste; positively to reach safety and sanitation utterly, with the danger of stopping to catch accidentally because of sterilizing.
In addition, please cooperate again referring to shown in Fig. 8～9, the inner bolt hole that front end was arranged with 300 of this spike body 30, fashion can be screwed with the end thread B1 of the rustless steel injection tube B that commonly uses if necessary, thereby the rustless steel injection tube B that makes spike body 30 of the present invention can be applicable to plastic needle cylinder body 10 simultaneously widely and commonly use, this is another characteristic of the present invention.
Claims (8)
1. a high-safety injection tube comprises a needle cylinder main body, a spike body, a push rod and a protective casing, it is characterized by:
Inner tool one containing hole of this needle cylinder main body, this needle cylinder main body first end is can be for the push rod guide hole of push rod embedding, this needle cylinder main body second end then forms a convergence part, the free end of this convergence part is arranged with an inner bolt hole, this inner bolt hole is connected with containing hole with a perforation, on one's body at least one side neck of this needle cylinder main body, then form a medicament filling notch again, this medicament filling notch is communicated in containing hole;
First end of this push rod has leader portion, and its second end then is to be embedded in by the push rod guide hole of needle cylinder main body in the storage tank of needle cylinder main body;
This spike body is to protrude out a pricker towards an end of needle cylinder main body, and the end in addition of this spike body is with respect to the position of pricker, then protrude out an entry needle, this entry needle forms with tiny perforation with this pricker inside and is communicated with, this spike body is near on all sides of entry needle end again, protruding distributes forms more than one at least guiding projection, an elasticity fixture block and an oblique projection, and make all side of this spike body near the thorn needle end part, then be provided with a screw part that can be screwed together in the convergence part inner bolt hole of this needle cylinder main body;
The internal diameter of this protective casing endoporus is slightly larger than the diameter of needle cylinder main body; first end of this protective casing forms the opening endoporus that can be placed on this spike body and needle cylinder main body; this protective casing endoporus is respectively guided the bump position place with respect to spike body; be arranged with and guide the lengthwise guide channel that projection passes through for spike body; this protective casing is corresponding to the relative position place of the oblique projection of spike body again; then wear a locating slot; so that protective casing is when being placed on spike body; come to form the location with locating slot for oblique projection inlay card; and this protective casing is equivalent to the side in addition of locating slot; then being provided with one can be when protective casing be placed on spike body; the Elastic buckle of corresponding pushing elasticity fixture block; this protective casing differs from second end of bore openings again, and then constriction forms the hole of threading a needle that can pass through for the entry needle of this spike body.
2. high-safety injection tube according to claim 1, it is characterized by: the screw part of this spike body, be near on the periphery of pricker one end in spike body, at least be convexly equipped with out two spiral shell projections, two spiral shell projections be 180 the degree spaced apart, use that two spiral shell projections can be screwed in the inner bolt hole of needle cylinder main body convergence part.
3. high-safety injection tube according to claim 1 is characterized by: an end of this spike body tool pricker is to be arranged with formation one can form the inner bolt hole that screws togather with the end thread of commonly using the rustless steel injection tube.
4. high-safety injection tube according to claim 1 is characterized by: this needle cylinder main body is a plastic.
5. high-safety injection tube according to claim 1 is characterized by: the guiding projection of this spike body is to be two, and makes two guiding projections be 180 degree symmetrical distributions.
6. high-safety injection tube according to claim 1 is characterized by: the elasticity fixture block of this spike body is to be arranged at stagger the guiding projection and the oblique position of projection, and is elastic stage and protrudes out.
7. high-safety injection tube according to claim 1 is characterized by: the oblique projection of this spike body is with the side in addition with respect to the elasticity fixture block, and the outside forms oblique protruding out towards the pricker direction towards spike body.
8. high-safety injection tube according to claim 1 is characterized by: the width of this medicament filling notch is slightly larger than the diameter of standard medicament pipe, and the length of this medicament filling notch, then is slightly larger than the length of standard medicament pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100316617A CN100398164C (en) | 2004-04-02 | 2004-04-02 | Safety injection needle cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100316617A CN100398164C (en) | 2004-04-02 | 2004-04-02 | Safety injection needle cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676172A CN1676172A (en) | 2005-10-05 |
| CN100398164C true CN100398164C (en) | 2008-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100316617A Expired - Fee Related CN100398164C (en) | 2004-04-02 | 2004-04-02 | Safety injection needle cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100398164C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102341311B (en) * | 2009-02-13 | 2014-03-12 | 药物混合系统股份公司 | Discharge device with tube |
| CN106345016A (en) * | 2016-09-29 | 2017-01-25 | 四川大学华西医院 | Medicine bottle and fast installation injection needle cylinder matched with medicine bottle |
| CN109224203A (en) * | 2018-10-30 | 2019-01-18 | 天津思盛科技有限公司 | A kind of cone joint oral cavity card occupies bottle anesthetic driving means |
| CN112169076A (en) * | 2020-09-29 | 2021-01-05 | 浙江笑谈科技有限公司 | Exhaust type medical injection apparatus with anti-theft function |
| CN113509614A (en) * | 2021-08-19 | 2021-10-19 | 尹建明 | Syringe piston and syringe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848593A (en) * | 1970-10-09 | 1974-11-19 | Affiliated Hospital Prod | Side loading disposable carpule syringe |
| US6090082A (en) * | 1998-02-23 | 2000-07-18 | Becton, Dickinson And Company | Vial retainer interface to a medication delivery pen |
| CN2561424Y (en) * | 2002-07-19 | 2003-07-23 | 陈志麟 | Locking safety device for injection and puncture needle |
-
2004
- 2004-04-02 CN CNB2004100316617A patent/CN100398164C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848593A (en) * | 1970-10-09 | 1974-11-19 | Affiliated Hospital Prod | Side loading disposable carpule syringe |
| US6090082A (en) * | 1998-02-23 | 2000-07-18 | Becton, Dickinson And Company | Vial retainer interface to a medication delivery pen |
| CN2561424Y (en) * | 2002-07-19 | 2003-07-23 | 陈志麟 | Locking safety device for injection and puncture needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1676172A (en) | 2005-10-05 |
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Granted publication date: 20080702 Termination date: 20190402 |
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