CN202569092U - Needle seat structure used for safety self-destruction syringe - Google Patents
Needle seat structure used for safety self-destruction syringe Download PDFInfo
- Publication number
- CN202569092U CN202569092U CN 201220071186 CN201220071186U CN202569092U CN 202569092 U CN202569092 U CN 202569092U CN 201220071186 CN201220071186 CN 201220071186 CN 201220071186 U CN201220071186 U CN 201220071186U CN 202569092 U CN202569092 U CN 202569092U
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- China
- Prior art keywords
- needle stand
- needle
- ring
- annular
- wall
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3293—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle hub
-
- 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
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
- A61M5/321—Means for protection against accidental injuries by used needles
- A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
- A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
- A61M2005/3223—Means impeding or disabling repositioning of used needles at the syringe nozzle
- A61M2005/3224—Means to disalign the needle tip and syringe nozzle
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Environmental & Geological Engineering (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a needle seat structure used for a safety self-destruction syringe. An outer casing type return locking assembly is connected with the lower end of a needle seat body; a needle tube is assembled at the upper end of the needle seat body; an elastic seal limit part is formed close to the middle of the needle seat body; an annular buffer gap is formed on the surface of the elastic seal limit part; and an annular seal limit engaging part is formed on an outer wall of the elastic seal limit part outside the annular buffer gap. An asymmetric return locking piece with an elastic function is arranged at the end of a syringe core rod, and matched with the syringe core rod; and when the asymmetric return locking piece is drawn back, the asymmetric return locking piece is locked with the outer casing type return locking assembly. When a needle seat is drawn back to a syringe cartridge, the needle seat body is stressed to deflect towards one side in a stressing environment of an asymmetric acting force; therefore, a syringe needle can fall towards the inner wall side of the cartridge in an approximately forty-five-degree direction; and when the syringe needle returns to the cartridge completely, a needle head can be locked by a neck of the cartridge, so that the syringe needle and the needle seat cannot be pushed out of the cartridge any more.
Description
Technical field
This utility model relates to technical field of medical, a kind of specifically needle stand structure that is used for safety self-destructing syringe, particularly its mechanical connecting structure.
Background technology
Documents one, the patent No.: ZL200710047077.4, the applying date: 2007.10.16; Notification number: CN101411908, the patentee: Shanghai DingJianTang biochemistry Science Co., Ltd, this case discloses " a kind of safe self-destruction type vaccine injector "; Comprise cylindrical shell, be provided with core bar in the cylindrical shell, core bar is provided with plug near the place, end; Be provided with syringe needle in the tube neck of cylindrical shell, the syringe needle place is provided with needle tubing, it is characterized in that: the body of rod sidewall of said core bar end is provided with horizontal cut; Vertical breach at horizontal cut and body of rod place, core bar end links, and horizontal cut matches with vertical breach, and syringe needle is socketed to form by last needle stand and following needle stand; Following needle stand inner chamber hollow, following needle stand becomes tubular structure, and following needle stand is provided with down the needle holder convex tendon with respect to the other end opening part inwall of installing needle holder; The core bar end is provided with the elastomer that is formed with vertical breach UNICOM by horizontal cut, and the core bar body of rod here has certain elasticity, and wherein vertically breach is up-narrow and down-wide shape; And horizontal cut outside opening place upper core club shaft outer wall protrudes from lower core club shaft outer wall here, and horizontal cut can be high outside and low outside shape, and it is circular-arc that the core bar end becomes; Last needle stand becomes bar shape, and last needle stand outer wall epimere is provided with the reinforcement fin, and last needle stand outer wall hypomere is provided with fixedly bulge loop of needle stand; Fixedly the overall diameter of bulge loop is greater than last needle stand outer diameter 0.05mm-0.3mm for last needle stand, and said needle stand down becomes bar shape, its inner chamber hollow; Following needle stand cavity inner wall place is provided with down needle holder annular fixed groove, following needle holder annular fixed groove can with last needle stand fixedly bulge loop match, the internal diameter of the annular fixed groove upper chamber of following needle holder is less than the fixing external wall external diameter of the bulge loop upper bar 0.1mm-0.35mm of last needle stand; Internal diameter≤last the needle stand of following needle holder annular fixed groove lower cavity is the external wall external diameter of bulge loop lower pole fixedly; Following needle stand is provided with down the needle holder annular convex rib with respect to the place, other end outer wall end of following needle holder bulge loop, and the tube neck inwall place of said cylindrical shell is provided with a neck upper limit ring and a tube neck lower limit ring respectively, and the distance between a neck upper limit ring and the tube neck lower limit ring is 0.3mm-1.5mm; Tube neck upper limit ring protrudes from inwall 0.1mm-0.6mm between a neck upper limit ring and the tube neck lower limit ring; Tube neck lower limit ring protrudes from inwall 0.02mm-0.25mm between a neck upper limit ring and the tube neck lower limit ring, the internal diameter of cylinder lumen between the internal diameter>=tube neck upper limit ring of tube neck upper limit ring top cylinder lumen and the tube neck lower limit ring, the internal diameter of the internal diameter≤tube neck lower limit ring bottom cylinder lumen of cylinder lumen between tube neck upper limit ring and the tube neck lower limit ring; The internal diameter of cylinder lumen is less than following needle holder annular convex rib external diameter 0.1mm-0.5mm between tube neck upper limit ring and the tube neck lower limit ring; Cylinder lumen is provided with the spacing muscle of cylindrical shell with respect to the other end inwall place of tube neck, and the spacing muscle of cylindrical shell can be linear annular muscle, many annular muscle, annular muscle that perpendicular muscle, a plurality of raised points constitute that perpendicular muscle constitutes, and the cylinder inboard wall place of the spacing muscle of cylindrical shell bottom is provided with the cylindrical shell inner convex rib; The thickness of the distance between spacing muscle of cylindrical shell and the cylindrical shell inner convex rib>=annular stop sheet, the internal diameter at the spacing muscle of cylindrical shell place is less than the diameter of annular stop sheet.
The function of utilizing barbed body to realize needle retractable is arranged in the existing safety injector structure, realize safety injection.General barbed body is metalwork or working of plastics.Metalwork need be processed and cooperate with core bar or assemble; Complex manufacturing technology; Difficulty is big and stability is not good, has not only increased manufacturing procedure and manufacturing cost, and metalwork itself and assembling process thereof can increase the uncertainties such as hidden danger of product aspect safety and product quality.Structurally still there is defective in existing plastics barb member or incomplete place is arranged, and therefore causes product in use to have potential safety hazard or security breaches.The design of existing plastics back-off spare though can realize the syringe needle function of pulling back, in use, still is in normal trace after syringe needle is pulled back, and syringe needle might be caused user by the risk of secondary damage by release once more.
In addition, all there are a same difficult problem in existing single needle seat pumpback formula safety self-destructing syringe or safety injector, are exactly engage between needle stand and the cylindrical shell in how solving to stablize and reach certain intensity to meet stability requirement; Simultaneously, required pulling force can not use with convenient too greatly when the pumpback needle stand.Though rigid fit structure can reach interior needle stand and the stable locking effect of cylinder inboard wall, be difficult to or even can't reach simultaneously the demand of convenient use.The unstability that plastic material itself exists and the characteristic that is subject to variation of ambient temperature can cause the product stability extreme difference of hard fit structure, and quality and precision all are difficult to control in the production process, almost can't realize batch process.
In sum; Still need further improve the core bar structure of existing haulback type syringe and the latch-up structure between interior needle stand and the cylindrical shell; Further to improve product safety and stability in use, reach the simplification manufacturing procedure simultaneously, reduce the purpose of manufacturing cost.
Summary of the invention
The purpose of this utility model is to provide a kind of needle stand structure that is used for safety self-destructing syringe.Lock each other through elastic buffering mechanism between syringe needle and the injector cartridge, utilize the distortion of buffer gap to produce expansionary force, realize both lockings and break away from effect; This elastic buffering mechanism can be arranged at interior needle stand place, also can be arranged at the cylinder inboard wall place, simultaneously; Needle stand and cylindrical shell place all form the elastic buffer snap fastener that can cooperatively interact, and its core bar end is provided with the asymmetric locking piece of band spring function, and this locking piece can lock through engaging mode with the syringe needle inner chamber each other; And, after needle stand is pulled back to the injector cartridge, under the strength effect of asymmetric elastic construction; Needle stand can stressedly be taken advantage of a situation to be changeed to a lateral deviation, and therefore entry needle can swing to cylinder inboard wall one side with nearly 45 angular direction, and is locked by the cylindrical shell cervical region; Cause entry needle and needle stand to be released the cylindrical shell cervical region once more thus; Prevent that effectively syringe needle from being released the secondary damage cause once more, realize the safety self-destruct operation of syringe, overcome the shortcoming and defect that exists in the prior art.
To achieve these goals; First technical scheme of this utility model is: a kind of needle stand structure that is used for safety self-destructing syringe; It comprises the needle stand body; It is characterized in that: said needle stand body lower end and the jacket-type locked component of pulling back is connected, and said needle stand body upper end is equipped with needle tubing, the needle stand body form the elastic packing limiting section near the middle part; Elastic packing limiting section surface offers the ring-type buffer gap, and the elastic packing limiting section outer wall in the outside, ring-type buffer gap forms the spacing holding section of annular seal.
The utility model discloses a kind of needle stand structure that is used for safety self-destructing syringe, the end of the syringe core rod that is mated is provided with the asymmetric locking piece of pulling back of band spring function; Asymmetry respective outer side edges spring function design can be guaranteed that this locking piece can insert the needle stand inner chamber smoothly, and utilize the function of its elastic dilatation, realizes that the asymmetric holding section, both sides and the jacket-type of the needle stand inner chamber locked component holding section of pulling back engages and locks.The design of the annular groove of locked component inner chamber also has the elastic buffer characteristic because jacket-type is pulled back; When with the asymmetric locking piece of pulling back when advanced state is touched; The both can produce the distortion of relative buffering, is convenient to locking piece and snaps in the jacket-type locked component inner chamber of pulling back; When the locking piece pumpback and the jacket-type locked component of pulling back lock each other.When needle stand was pulled back to injector cartridge, receiving under the force environment of asymmetric active force, needle stand can stressedly change to a lateral deviation, and therefore entry needle can swing to cylinder inboard wall one side to nearly 45 angular direction; After entry needle was return cylindrical shell fully, syringe needle can be caused entry needle and needle stand to be released once more outside the cylindrical shell by cylindrical shell cervical region locking thus, prevented effectively that syringe needle from being released once more to cause secondary damage, really realized the safety self-destruct operation of syringe.When practical implementation of the present invention, the described asymmetric elasticity locking piece of pulling back is a plastics barbed body.This plastics barbed body adopts the design principle of asymmetry and the ingenious cooperation of elastomer structure, uses specific angle and size design, makes the barb body possess the elastic buffer lock function.Pull back locking piece and core bar of above-mentioned asymmetric elasticity is into a single integrated structure, and global facility adopts a die sinking molding, need not processing or follow-up assembling separately, effectively reduces manufacturing cost, has simplified assembly technology, has reduced assembly process.The pull back snap lock effect of part and needle stand inner chamber of the asymmetric elasticity of core bar end is splendid, and the product reasonable integral structure is skillfully constructed, and manipulates simply, and stable working state is easy to apply.Compare existing product design and technology, have significant technical breakthrough in the design, and have outstanding safety and practicality characteristics.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 3 is this utility model jacket-type locked component structural representation of pulling back.
Fig. 4 is this utility model user mode figure.
The specific embodiment
With reference to the accompanying drawings, this utility model is further described.
This utility model is a kind of needle stand structure that is used for safety self-destructing syringe; It comprises the needle stand body; It is different from prior art and is: said needle stand body lower end and the jacket-type locked component 5 of pulling back is connected, and said needle stand body upper end is equipped with needle tubing 1, the needle stand body form elastic packing limiting section 2 near the middle part; Elastic packing limiting section 2 surfaces offer ring-type buffer gap 3; Elastic packing limiting section 2 outer walls in 3 outsides, ring-type buffer gap form the spacing holding section 4 of annular seal, can reach the stable requirement that engages between needle stand body and cylindrical shell in the elastic packing limiting section makes, can realize the light effect that withdraws from again.
In the specific implementation; Said ring-type buffer gap 3 is a ring channel structures; The height of its notch to bottom land is 0.05mm-4mm; The width of ring-type buffer gap 3 is 0.05mm-4mm, and the distance on 4 surperficial cambered surface arc tops, the spacing holding section of ring-type buffer gap 3 outside cell walls and annular seal is 0.1mm-6mm, and the distance between cell wall notch place, 3 outside, ring-type buffer gap and the spacing holding section of annular seal 4 outer walls is 0.1mm-6mm; Distance between cell wall bottom land place, 3 outside, ring-type buffer gap and the spacing holding section of annular seal 4 outer walls is 0.1mm-6mm; The surface of the spacing holding section 4 of annular seal becomes arc surfaced, and the spacing holding section of annular seal 4 arcing surfaces push up to the distance of cambered surface top edge and push up to the distance of cambered surface lower limb less than arc, and the elastic packing limiting section 2 outer wall places of 4 bottoms, the spacing holding section of said annular seal form annular recess 6.
In the specific implementation, the bottom land of said annular recess 6 and ring-type buffer gap 3 is positioned at same horizontal plane or is higher than the bottom land of ring-type buffer gap 3.
In the specific implementation, outer wall place, said needle stand body lower end forms at least one annular stop convex tendon 7, and the pull back inwall place of locked component 5 upper end inner chambers of jacket-type is provided with the annular spacing groove 8 that matches with annular stop convex tendon 7.
In the specific implementation, the said jacket-type locked component 5 inner chamber hollows of pulling back, cavity wall forms ring-type snap-in lock bonding part 9 near the lower ending opening place in it.
In the specific implementation; Annular groove 10 is formed at the top of said ring-type snap-in lock bonding part 9; The thickness of annular groove 10 medial walls 11 is 0.01mm-3mm; Form 2 degree between annular groove 10 medial walls and annular groove 10 lateral walls 12 to 90 degree angles, the interior diameter that annular groove 10 medial wall upper ends form is 1mm-80mm.
In the specific implementation, the width of rebate of said annular groove 10 is greater than the bottom land width.
Above content is the further explain that combines concrete preferred implementation that this utility model is done, and can not assert that this utility model practical implementation is confined to above-mentioned these explanations.For the those of ordinary skill of technical field under this utility model, under the prerequisite that does not break away from this utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of this utility model.
Claims (7)
1. needle stand structure that is used for safety self-destructing syringe; It comprises the needle stand body; It is characterized in that: said needle stand body lower end and the jacket-type locked component (5) of pulling back is connected; Said needle stand body upper end is equipped with needle tubing (1); The needle stand body form elastic packing limiting section (2) near the middle part, elastic packing limiting section (2) surface offers ring-type buffer gap (3), elastic packing limiting section (2) outer wall in ring-type buffer gap (3) outside forms the spacing holding section of annular seal (4).
2. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 1; It is characterized in that: said ring-type buffer gap (3) is ring channel structures; The height of its notch to bottom land is 0.05mm-35mm; The width of ring-type buffer gap (3) is 0.05mm-30mm; The distance on ring-type buffer gap (3) outside cell wall and the spacing holding section of annular seal (4) surperficial cambered surface arc top is 0.1mm-20mm; Distance between cell wall notch place, the outside, ring-type buffer gap (3) and the spacing holding section of annular seal (4) outer wall is 0.1mm-20mm; Distance between cell wall bottom land place, the outside, ring-type buffer gap (3) and the spacing holding section of annular seal (4) outer wall is 0.1mm-20mm; The surface of the spacing holding section of annular seal (4) becomes arc surfaced, and the spacing holding section of annular seal (4) arcing surface pushes up to the distance of cambered surface top edge and pushes up to the distance of cambered surface lower limb less than arc, and elastic packing limiting section (2) the outer wall place of bottom, the spacing holding section of said annular seal (4) forms annular recess (6).
3. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 2 is characterized in that: the bottom land of said annular recess (6) and ring-type buffer gap (3) is positioned at same horizontal plane or is higher than the bottom land of ring-type buffer gap (3).
4. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 1; It is characterized in that: outer wall place, said needle stand body lower end forms at least one annular stop convex tendon (7), and the pull back inwall place of locked component (5) upper end inner chamber of jacket-type is provided with the annular spacing groove (8) that matches with annular stop convex tendon (7).
5. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: said jacket-type locked component (5) the inner chamber hollow of pulling back, cavity wall forms ring-type snap-in lock bonding part (9) near the lower ending opening place in it.
6. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 5; It is characterized in that: annular groove (10) is formed at the top of said ring-type snap-in lock bonding part (9); The thickness of annular groove (10) medial wall (11) is 0.01mm-3mm; Form 2 degree between annular groove (10) medial wall and annular groove (10) lateral wall (12) to 90 degree angles, the interior diameter that annular groove (10) medial wall upper end forms is 1mm-80mm.
7. a kind of needle stand structure that is used for safety self-destructing syringe according to claim 6, it is characterized in that: the width of rebate of said annular groove (10) is greater than the bottom land width.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220071186 CN202569092U (en) | 2012-02-29 | 2012-02-29 | Needle seat structure used for safety self-destruction syringe |
| PCT/CN2012/000930 WO2013127038A1 (en) | 2012-02-29 | 2012-07-05 | Needle base structure for use in safe self-destructing syringe |
| PCT/CN2013/000192 WO2013127261A1 (en) | 2012-02-29 | 2013-02-26 | Needle base structure for use in safe self-destructing syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220071186 CN202569092U (en) | 2012-02-29 | 2012-02-29 | Needle seat structure used for safety self-destruction syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202569092U true CN202569092U (en) | 2012-12-05 |
Family
ID=47238553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220071186 Expired - Fee Related CN202569092U (en) | 2012-02-29 | 2012-02-29 | Needle seat structure used for safety self-destruction syringe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202569092U (en) |
| WO (2) | WO2013127038A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127261A1 (en) * | 2012-02-29 | 2013-09-06 | Wang Zuyang | Needle base structure for use in safe self-destructing syringe |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0582849A1 (en) * | 1992-08-12 | 1994-02-16 | Brice Somers | Syringe |
| AUPN254195A0 (en) * | 1995-04-20 | 1995-05-18 | Curie, Napoleon | Syringe with retractable needle mount |
| US20030093038A1 (en) * | 2001-11-15 | 2003-05-15 | Kun-Feng Chiang | Needle retraction type safety syringe |
| CN2628071Y (en) * | 2003-05-08 | 2004-07-28 | 比特克生化科技股份有限公司 | Syringe reservoir |
| CN1263521C (en) * | 2003-05-22 | 2006-07-12 | 陈晖紘 | Airtight safe injection syringe with double elastic structure |
| CN200945295Y (en) * | 2006-09-01 | 2007-09-12 | 沈海忠 | Safe self-destruction syringe |
| CN201235122Y (en) * | 2007-10-16 | 2009-05-13 | 上海顶尖堂生化科技有限公司 | Needle structure for safety syringe |
| NL2001702C2 (en) * | 2008-06-19 | 2009-12-22 | Addino B V | Injection syringe with possibility of needle storage. |
| CN201735028U (en) * | 2010-06-17 | 2011-02-09 | 昆山和兴医疗科技有限公司 | Safe self-destruction injection syringe with locking structure |
| CN202105269U (en) * | 2011-06-07 | 2012-01-11 | 倍安德普医疗科技（上海）有限公司 | Inner needle base structure for safe self-destruction syringe |
| CN202105275U (en) * | 2011-06-07 | 2012-01-11 | 倍安德普医疗科技（上海）有限公司 | Safe self-destruction syringe |
| CN202161645U (en) * | 2011-07-18 | 2012-03-14 | 倍安德普医疗科技（上海）有限公司 | Needle-changeable internal needle base structure for safety self-destruction type syringe |
| CN202236663U (en) * | 2011-07-18 | 2012-05-30 | 倍安德普医疗科技（上海）有限公司 | Safety self-destruction type syringe capable of changing needle |
| CN202892570U (en) * | 2012-02-29 | 2013-04-24 | 王祖扬 | A need-pullback-type needle-replaceable safe self-destruction syringe |
| CN202569091U (en) * | 2012-02-29 | 2012-12-05 | 王祖扬 | Sleeve-type pullback locking assembly for pullback safety self-destruction syringe |
| CN202569092U (en) * | 2012-02-29 | 2012-12-05 | 王祖扬 | Needle seat structure used for safety self-destruction syringe |
| CN202569090U (en) * | 2012-02-29 | 2012-12-05 | 王祖扬 | Needle-pulling-back safe self-destructive syringe |
-
2012
- 2012-02-29 CN CN 201220071186 patent/CN202569092U/en not_active Expired - Fee Related
- 2012-07-05 WO PCT/CN2012/000930 patent/WO2013127038A1/en active Application Filing
-
2013
- 2013-02-26 WO PCT/CN2013/000192 patent/WO2013127261A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127261A1 (en) * | 2012-02-29 | 2013-09-06 | Wang Zuyang | Needle base structure for use in safe self-destructing syringe |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013127261A1 (en) | 2013-09-06 |
| WO2013127038A1 (en) | 2013-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20160229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |