CN2726618Y - Push-rod self-destructing safety syringe - Google Patents
Push-rod self-destructing safety syringe Download PDFInfo
- Publication number
- CN2726618Y CN2726618Y CN 200420084853 CN200420084853U CN2726618Y CN 2726618 Y CN2726618 Y CN 2726618Y CN 200420084853 CN200420084853 CN 200420084853 CN 200420084853 U CN200420084853 U CN 200420084853U CN 2726618 Y CN2726618 Y CN 2726618Y
- Authority
- CN
- China
- Prior art keywords
- push rod
- embedding
- syringe
- cylindrical shell
- post
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/504—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the fluid passageway
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model discloses a push-rod self-destructing safety syringe. The central flow path of the syringe body is provided with an embedded end. A cone column on which a cock body is arranged protrudes on the front end of the push rod. When the push rod is pushed to the bottom, the embedded protruding rim which is arranged on the cone column on the front end of the push rod and the embedded end penetrate and extend with each other to form the locking and fastening state, and the folded groove between the push rod and the cone column is broken off and separated along the direction in which force is applied. Because of the design of an empty groove and a lack groove, the sealed situation doesn't exist in the syringe any longer after the push rod is broken off. So a self-destructing syringe structure can be formed, and the effect of hygiene and disease control can be effectively improved.
Description
Technical field
This utility model relates to a kind of safety syringe-drum, especially a kind of disposable push rod self-destructing safety syringe.
Background technology
Raising along with medical skill and safe and sanitary quality requirements, for avoiding the repeated use of syringe needle, and prevent to use the back medicinal liquid can be back in the syringe, cause disease propagation, the general deserted syringe that once promptly abandons that uses of modern medical service institute, institute or other health units.Be provided with in the existing syringe cylinder structure and make the propulsive push rod of medicinal liquid, this syringe barrel front end be provided with syringe needle to be used for injection, to be arranged with needle guard on the syringe needle again, open and cover before and after using.Though this structure member is formed simple, do not have other safeguard procedures with stop because of this syringe may be repeated to use cause various diseases infectious may, when serious even cause human dead.Other has in the existing syringe cylinder structure, and it is placed in the syringe needle outside with needle guard after injection finishes, and syringe needle and cylindrical shell Separation and Recovery is handled again.
In the at present common processing mode and removal process, only be, more whole syringe abandoned, or syringe needle is separated and separate recovery with cylindrical shell needle guard on the needle cover.Yet, if there is not strict pharmaceuticals garbage control, in discarded recycling process, misapplied by the people easily, or suffer vagrant, junkie to pick up repeated use again, the injury that it caused will be difficult metering, for a short time, catch an illness or injures and deaths to the individual, when serious even cause the big infection of human diseases, disappearance and drawback that therefore existing syringe cylinder structure exists are demanded urgently further being improved.
The utility model content
Technical problem to be solved in the utility model is at the deficiencies in the prior art, and a kind of push rod self-destructing safety syringe is provided, and it has firm inlay card effect, and the power of can the borrowing body of rod that fractures easily makes and do not have airtight conditions in the syringe and reuse avoiding.
Technical problem to be solved in the utility model is achieved by the following technical solution:
A kind of push rod self-destructing safety syringe, it mainly is to be provided with a vertebra post and to be erected with a cock body in this push rod front end of pushing medicinal liquid, lap-joint is provided with the folding ditch that a umbrella ora terminalis and fractures easily between this vertebra post and push rod, this umbrella ora terminalis is provided with more than one short slot and is provided with one in the vertebra intercolumniation and cuts open dead slot, be provided with the prominent edge of embedding of more than one inclined plane shape in vertebra post periphery, make cylindrical shell runner place be formed with an embedding end.When it finishes in injection, push push rod on earth, make the awl post of lever front end pass the embedding end of cylindrical shell runner; Embedding is prominent, and behind the runner that stretched through, this embedding is prominent along being reinstatement along being subjected to the embedding end to oppress flexible, makes prominent edge of embedding and embedding end produce the inlay card effect, and then the vertebra post forms buckle in the runner place; Push rod is retracted again, and take advantage of a situation push rod is converted into two sections in folding ditch placement, this push rod promptly can't move use again.And see through the design of vertebra post caulking groove and umbrella ora terminalis short slot, make syringe inside can't reach airtight conditions, then the integral pin barrel structure can't re-use, so that disposable push rod self-destructing safety syringe to be provided.
The type self-destroyed large-scale safety syringe-drum of a kind of push rod, its basic structure and above-mentioned push rod self-destructing safety syringe are similar.Its cylindrical shell room front end build-in is equipped with a central pertusate embedding seat, and prominent the establishing of this perforation is formed with the embedding end; When injection finishes, push push rod on earth, the awl post is fastened in the caulking groove that forms between embedding seat and cylindrical shell and can't deviates from, and push rod fractureed in folding ditch place, and make in the syringe and can't reach airtight conditions owing to cut open the design of dead slot and short slot, thereby can provide disposable push rod type self-destroyed large-scale safety syringe-drum.
This utility model can reach following advantage:
1, having firm inlay card does in order to avoid repeated use: because the inlay card manner between prominent edge of this utility model vertebra post embedding and runner embedding end, and it can be fractureed at folding ditch place easily, cause the body of rod to reuse again, to reach disposable safe effect.
2, the power of can the borrowing body of rod that fractures easily: link because the lap-joint of push rod of the present utility model and awl post base is provided with the pole in a thin footpath, forming a folding ditch, separate so that user can be easily fractures push rod in folding ditch place with the awl post.
3, make and do not have airtight conditions in the syringe and reuse avoiding: design with umbrella ora terminalis short slot because this utility model vertebra post cuts open dead slot, make the vertebra post be embedded in embedding end and vertebra post and push rod fracture separate after, syringe inside can't reach airtight conditions again, thereby can avoid reusing.
Description of drawings
Fig. 1 be first embodiment of the present utility model the three-dimensional exploded view of push rod self-destructing safety syringe needle;
Fig. 2 is the combination generalized section of the push rod of first embodiment of the present utility model;
Fig. 3 is the inlay card of first embodiment of the present utility model and the action sketch map one that push rod fractures;
Fig. 4 is the inlay card of first embodiment of the present utility model and the action sketch map two that push rod fractures;
Fig. 5 is the inlay card of first embodiment of the present utility model and the action sketch map three that push rod fractures;
Fig. 6 is the three-dimensional exploded view of second embodiment of the present utility model;
Fig. 7 is the combination generalized section of the push rod of second embodiment of the present utility model;
Fig. 8 is the inlay card of second embodiment of the present utility model and the action sketch map one that push rod fractures;
Fig. 9 is the inlay card of second embodiment of the present utility model and the action sketch map two that push rod fractures.
Description of reference numerals
A-push rod self-destructing safety syringe
10-cylindrical shell 11-room
12-tubing string 121-runner 122-embedding end
The prominent rib of 13-ring containment body 131-
20-needle stand 21-syringe needle 22-supports edge
The 23-needle guard
30-cock body 31-perforation 32-annular groove
40-push rod 41-stiff end 42-bar rib
43-umbrella ora terminalis 431-short slot
44-vertebra post 441-folding ditch 442-base
443-cuts open the prominent edge of dead slot 444-embedding
The 445-headpin
50-cylindrical shell 51-room
52-tubing string 521-runner 522-runner
The 53-caulking groove 54-embedding edge of dashing forward
55-embedding seat 551-perforation 552-embedding end
The 553-ring groove
The 60-needle stand
70-push rod 71-stiff end 72-bar rib
73-umbrella ora terminalis 731-short slot
74-vertebra post 741-folding ditch 742-base
743-cuts open the prominent edge of dead slot 744-embedding
The 745-headpin
80-embedding seat 81-perforation
The specific embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further specified:
First embodiment
As Fig. 1～shown in Figure 2, for first embodiment of the present utility model push rod self-destructing safety syringe A, it constitutes and to comprise that at least one has needle stand 20 and that cylindrical shell 10, that room 11 is used for receiving medical liquids is embedded in barrel front end and holds and stretch in the push rod 40 that cylindrical shell 10 is used to push liquid medicine injection and form.And wherein, needle stand 20 is provided with a syringe needle 21 and is used for injection, and can overlap before and after needle stand 20 uses and be stamped a needle guard 23; The body of rod 40 front ends are overlapped with a cock body 30, make it just salable in the room 11 of cylindrical shell 10, are used for pushing of liquid medicine injection; Cylindrical shell 10 front end projections are provided with the tubing string 12 that central authorities have runner 121, the front end of cylindrical shell 10 internal capacity room 11 is enclosed for the funnel-form ring, this funnel-form ring encloses the embedding end 122 that is formed with a bead shape with runner mouth 121 places, and be provided with a ring containment body 13 in cylindrical shell 10 front ends and tubing string 12 outboard peripheries, these ring containment body 13 inner edges are provided with more than one prominent rib 131, can wear for needle stand 20 and be fixed on the tubing string 12, make the edge 22 that supports of these needle stand 20 bottoms form mutual inlay card location with the prominent rib 131 of ring containment body.
Be provided with a stiff end 41 in push rod 40 front ends and cock body 30 lap-joints, the umbrella ora terminalis 43 that is based in bar rib 42 the place aheads by the more than one staggered prominent bar rib of establishing 42 and constitutes.This umbrella ora terminalis 43 is provided with at least one short slot 431, and has extended an awl post 44 in these umbrella ora terminalis 43 front ends.This vertebra post 44 has a base 442 and a headpin 445, be provided with the folding post in a thin footpath to form ring-type folding ditch 441 in base 442 and 43 of umbrella ora terminalis, be provided with one in headpin 445 and base 442 intercolumniations and cut open dead slot 443, and in the vertebra band of column week lateral margin be formed with respective amount and embedding that take the form of inclined plane prominent along 444, these cock body 30 inner set annular grooves 32 are set on this umbrella ora terminalis 43.These cock body 30 central authorities are provided with perforation 31 and are used for vertebra post 44 and stretch through.
As Fig. 3～shown in Figure 5, for first embodiment of the present utility model the action generalized section, push push rod 40 when user and enter runner 121, and enter by in the injecting body by syringe needle 21 to push liquid medicine injection.When injection finishes, push push rod 40 on earth, the headpin 445 of these awl post 44 front ends is stretched through in the runner 121 of tubing string 12.Along with user is pushed push rod 40, make vertebra post 44 have that the embedding on inclined-plane is prominent to be subjected to 122 compressings of embedding end and to cut open dead slot 443 and hold vacancies and form the compression shapes along 444.After treating that it stretches through, embedding prominent along 444 because its elastic recovery original position, make that embedding is prominent to be formed inlay cards along 444 with embedding end 122 and replace, then these vertebra post 44 front ends hold to stretch and are embedded in the runner 121, and make this vertebra post 44 can't retract room 11 again.This moment, the application of force retracts push rod 40 again, can take advantage of a situation by means of power this push rod 40 and vertebra post 44 to be converted into two sections in folding ditch place 441, and this body of rod 40 can't be reused once more.And simultaneously, because the short slot that cuts open dead slot 443 and push rod 40 front end umbrella ora terminalis 43 431 designs of this vertebra post 44, make 11 of cylindrical shell runner 121 and rooms be formed with the space, and can't reach airtight conditions, therefore can't extract medicinal liquid again, this syringe then can't be reused, make it have disposable effect, help safety and sanitation.
Second embodiment
As Fig. 6～shown in Figure 7, be the sketch map of second embodiment of the present utility model, the type self-destroyed large-scale safety syringe-drum of a kind of push rod, its basic structure and above-mentioned push rod self-destructing safety syringe are similar.It is to be provided with the stiff end 31 that more than one rib 32 and umbrella ora terminalis 33 are connected to form in push rod 30 front ends equally, and these umbrella ora terminalis 73 ora terminalis places are provided with above together short slot 331, have extended a vertebra post 34 in umbrella ora terminalis 33 front ends; This vertebra post 34 has a base 342 and a headpin 745, its base 342 and 73 of umbrella ora terminalis in vertebra post 34 is provided with a thin post of directly rolling over to form a folding ditch 341, and the length of this headpin 345 is short than headpin 445 length of this utility model first embodiment, be provided with one in headpin 345 ends and cut open dead slot 343, the lateral margin of this headpin 345 is formed with the prominent cock body 80 that has a perforation 81 along 344, one central authorities of respective amount and embedding that take the form of inclined plane and is set on this umbrella ora terminalis 33; Owing in this large-scale syringe cylinder structure, can be eccentric settings for needle stand 60 sheathed localized stiff ends, therefore, it be equipped with an embedding bead 54, one central projection in room 51 front end appropriate location rings and be provided with 551 the funnel-form embedding seat 55 of boring a hole and sets into cylindrical shell room 51 front ends; Because these embedding seat 55 peripheries are provided with the ring groove 553 with the 54 corresponding settings of embedding bead, make this embedding seat 55 because the mutual inlay card of ring groove 553 and 54 generations of embedding bead is fixed, so that embedding seat 55 firm inlay cards are fixed in the room 51; And in cylindrical shell 50 rooms 51 interior forward end be formed with one with the similar corresponding caulking groove 53 of vertebra stigma post 745 shapes, this caulking groove 53 and 521 of tubing string 52 runners have a side runner 522, can flow out through side runner 522 inflow runners 521 and through syringe needle for the medicinal liquid in the room 51.
As Fig. 8～shown in Figure 9, action generalized section for second embodiment of the present utility model, when injection finishes, push push rod 70 on earth, these awl post 34 front end headpins 345 are stretched through in the perforation 551 of embedding seat 55, along with pushing push rod 30 on earth, the embedding of vertebra post prominent along 344 owing to cut open dead slot 343 and hold empty the setting and its compression is held stretch in the caulking groove 53, treat embedding prominent along 344 by being reinstatement behind the embedding end 552; And this embedding is prominent to be replaced with embedding end 552 formation inlay cards along 344, makes vertebra post 74 be embedded in caulking groove interior 53; The application of force retracts push rod 30 again, and take advantage of a situation and this push rod 30 and vertebra post 34 are converted into two sections in folding ditch place 341 by means of power, and because this short slot 331 and the setting of cuing open dead slot 343, make in the cylindrical shell and can't be airtight conditions again, this body of rod 30 can't be reused once more, make it have disposable effect, help safety and sanitation.
In sum, push rod self-destructing safety syringe wound structure of the present utility model, it is to be provided with a vertebra post that is overlapped with cock body in the push rod front end, when injection finishes, push push rod on earth, make the awl post pass the set embedding end of cylindrical shell runner, this embedding is prominent to be replaced along forming inlay card with the embedding end, again vertebra post and push rod are converted into two sections in folding ditch place, because the design of vertebra post profile groove and umbrella ora terminalis short slot, make in the syringe to reach airtight conditions again, thereby a kind of disposable push rod self-destructing safety syringe is provided.
It should be noted that at last: above embodiment only in order to the explanation this utility model and and the described technical scheme of unrestricted this utility model; Therefore, although this description has been described in detail this utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement this utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, and it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1, a kind of push rod self-destructing safety syringe, its formation comprises at least: one has the needle stand, that is embedded in barrel front end for the cylindrical shell, of receiving medical liquids room holds and stretches in the needle guard that needle stand and that cock body, that the push rod, that is used to push liquid medicine injection in the cylindrical shell is overlapped in the push rod front end is provided with syringe needle is sheathed on the needle stand outside and form, and it is characterized in that:
The push rod front end is provided with one and supplies cock body to wear localized stiff end, and this stiff end is provided with a umbrella ora terminalis, and its ora terminalis place is provided with above together short slot; Push rod stiff end front end and cock body lap-joint are provided with a vertebra post, this vertebra post has a base and a headpin, be formed with a folding post and ring-type folding ditch between vertebra post base and push rod, this headpin and base intercolumniation appropriate location are formed with and cut open dead slot, and are formed with the prominent edge of the embedding that takes the form of inclined plane in all lateral margins of the vertebra band of column; The runner place of described barrel front end is formed with an embedding end.
2, push rod self-destructing safety syringe according to claim 1 is characterized in that: described barrel front end is provided with a ring containment body with more than one prominent rib.
3, push rod self-destructing safety syringe according to claim 1 is characterized in that: the stiff end of described push rod front end, the umbrella ora terminalis that is based in bar rib the place ahead by the more than one staggered prominent bar rib of establishing and constitutes.
4, push rod self-destructing safety syringe according to claim 1 is characterized in that: described cock body inside is provided with an annular groove that is used to be set on the umbrella ora terminalis of push rod front end, and is provided with in cock body central authorities and is used for the perforation that the vertebra post stretches through.
5, the type self-destroyed large-scale safety syringe-drum of a kind of push rod, its formation comprises at least: one has the needle stand, that is embedded in barrel front end for the cylindrical shell, of the room of receiving medical liquids holds and stretches in the needle guard that needle stand and that cock body, that the push rod, that is used to push liquid medicine injection in the cylindrical shell is overlapped in the push rod front end is provided with syringe needle is sheathed on the needle stand outside and form, and it is characterized in that:
Described cylindrical shell room front end build-in is equipped with a central pertusate embedding seat, is formed with an embedding end in prominent the establishing of its central perforation place, establishes one in the push rod front end and has prominent edge of embedding and the vertebra post that cuts open dead slot, and the umbrella ora terminalis in the push rod stiff end is provided with at least one short slot in addition.
6, the type self-destroyed large-scale safety syringe-drum of push rod according to claim 5, it is characterized in that: described cylindrical shell room interior forward end is formed with a corresponding caulking groove similar with vertebra stigma post shapes, and establish in room front end appropriate location ring and to be formed with an embedding bead, and the embedding seat that makes these central authorities be provided with perforation sets into cylindrical shell room front end, and this embedding seat periphery is provided with the firm inlay card of this embedding seat of the ring groove corresponding with the embedding bead and is fixed in the room.
7, the type self-destroyed large-scale safety syringe-drum of push rod according to claim 5 is characterized in that: being provided with one between described caulking groove and tubing string runner can flow in the runner and through the effusive side runner of syringe needle through small flow channels for the medicinal liquid in the room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084853 CN2726618Y (en) | 2004-08-06 | 2004-08-06 | Push-rod self-destructing safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420084853 CN2726618Y (en) | 2004-08-06 | 2004-08-06 | Push-rod self-destructing safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2726618Y true CN2726618Y (en) | 2005-09-21 |
Family
ID=35042642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420084853 Expired - Fee Related CN2726618Y (en) | 2004-08-06 | 2004-08-06 | Push-rod self-destructing safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2726618Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075961A1 (en) * | 2009-12-23 | 2011-06-30 | Chang Shu-Ming | Improved structure for self-destruction injector |
| CN104001234A (en) * | 2014-03-28 | 2014-08-27 | 顶一医疗设备（昆山）有限公司 | Disposable self-destruction injection syringe |
-
2004
- 2004-08-06 CN CN 200420084853 patent/CN2726618Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075961A1 (en) * | 2009-12-23 | 2011-06-30 | Chang Shu-Ming | Improved structure for self-destruction injector |
| CN104001234A (en) * | 2014-03-28 | 2014-08-27 | 顶一医疗设备（昆山）有限公司 | Disposable self-destruction injection syringe |
| CN104001234B (en) * | 2014-03-28 | 2016-05-11 | 顶一医疗设备（昆山）有限公司 | A kind of disposable self-destruction syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SAMOA QUALITY MANAGEMENT LTD. Free format text: FORMER OWNER: YANG ZHENGCHANG Effective date: 20060331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060331 Address after: Samoa Post Office No. 217 offshore Apia Patentee after: Samoa Quality Mind Corp. Address before: Nangang District Yucheng street Taiwan city Taipei province 140 Lane 14 Building No. 5 Patentee before: Yang Zhengchang |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |