CN106310458A - Needle stab proofing self-destruction syringe - Google Patents

Needle stab proofing self-destruction syringe Download PDF

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Publication number
CN106310458A
CN106310458A CN201610775531.7A CN201610775531A CN106310458A CN 106310458 A CN106310458 A CN 106310458A CN 201610775531 A CN201610775531 A CN 201610775531A CN 106310458 A CN106310458 A CN 106310458A
Authority
CN
China
Prior art keywords
seat
threaded block
self
syringe
overcoat
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.)
Pending
Application number
CN201610775531.7A
Other languages
Chinese (zh)
Inventor
刘方文
杨琪
简玉梅
田军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd
Original Assignee
JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd filed Critical JIANGXI HONGDA MEDICAL EQUIPMENT GROUP CO Ltd
Priority to CN201610775531.7A priority Critical patent/CN106310458A/en
Publication of CN106310458A publication Critical patent/CN106310458A/en
Pending legal-status Critical Current

Links

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
    • 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
    • A61M5/3129—Syringe barrels
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • 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
    • A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
    • A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
    • A61M5/31513—Piston constructions to improve sealing or sliding
    • 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
    • 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
    • A61M5/50—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
    • 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
    • A61M5/3234—Fully automatic needle retraction, i.e. in which triggering of the needle does not require a deliberate action by the user
    • A61M2005/3241—Needle retraction energy is accumulated inside of a hollow plunger rod
    • 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
    • A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts

Abstract

The invention discloses an needle stab proofing self-destruction syringe. The needle stab proofing self-destruction syringe comprises a casing, a core rod, a rubber plug, a connection seat and a threaded seat. The needle stab proofing self-destruction syringe can be further provided with an injection needle, the connection seat is an elastic body, and the materials include but not limited to natural rubber, PVC, PE and the like. One to four convex ribs are distributed on the upper portion and lower portion of the peripheral region of the needle stab proofing self-destruction syringe for allowing the inner wall of the casing to be in close contact with the inner wall or outer wall of the threaded seat, and the sealing effect is achieved. Both ends are hollow and assembled with the threaded seat. One to ten convex wedges are distributed on the peripheral region for fixing a sloping wedge of the threaded seat. In the process of using, the needle stab proofing self-destruction syringe has the same operation steps as a traditional medical syringe. After a product is completely injected and used, a cassette at the top end of the core rod is clamped into a clamping groove of an inner cavity of the connection seat. According to the needle stab proofing self-destruction syringe, when the core rod is pulled back, the connection seat is pulled back, at the same time, the convex ribs of the connection seat pull the threaded seat to the bottom of the inner cavity of the casing and the core rod is broken off, so as to protect the needle tip, and the needle stab proofing self-destruction syringe prevents medical personnel from being stabbed and prevents the reuse.

Description

A kind of anti-acupuncture self-destroyed syringe
Technical field
The present invention relates to the medical apparatus and instruments of a kind of injection, after especially relating to a kind of use, prevent needle pricks medical matters people The self-destruction syringe for medical purpose of member.
Background technology
At present, the needling prevention injector that medical field is conventional be essentially all by overcoat, threaded seat, deck, plug, Core bar and O RunddichtringO composition.O RunddichtringO is enclosed within threaded seat, and is contained in the head end of overcoat, plug together with deck Being enclosed within the head of core bar, plug and core bar collectively constitute push rod, and push rod loads the inner chamber of overcoat.
Entry needle before use, is screwed by medical personnel with the seat of threadeding of syringe, and suction, liquid medicine injection make to be finished Bi Hou, the core bar being exposed at plug outer end snaps in deck inner chamber and threaded seat inner chamber.Pumpback push rod is by deck and threaded Seat pull-out the core bar that fractures, reach the purpose of self-destruction.But owing to unassembled putting in place often occurring when O assembles, cause product Qualification rate is relatively low, it is difficult to high-volume is full-automatic to be produced.
Summary of the invention
It is an object of the invention to provide one can be by self-destruction to prevent needle pricks medical worker, to reduce assembling work Sequence, the anti-acupuncture self-destroyed syringe of reduction production cost.
The object of the present invention is achieved like this:
A kind of anti-acupuncture self-destroyed syringe, including overcoat, core bar, plug, connection seat and threaded block, entry needle passes through with threaded block Threaded, inner chamber even spread at overcoat has had the silicone oil of lubrication, and feature is: the inner portion at overcoat is provided with 1-10 draw-in groove；
The head of core bar is in T shape or bullet shaped, and the head of core bar embeds and connects in seat inner chamber draw-in groove, will connect during pumpback core bar Seat pull-out.
The periphery of plug is distributed 1～4 convex tendon up and down, and the inwall for overcoat is close to, and reaches sealing effectiveness；Two ends are adopted Assemble with core bar by hollow design.
Threaded block is distributed 1-20 threaded block key, and multiple threaded block keies open and support at overcoat draw-in groove, support spiral shell The retrogressing profit that the injection of stricture of vagina seat produces.
Inner chamber is provided with annular slot, is used for connecting seat and is drawn in overcoat by threaded block.
Outer head segment is furnished with 1-10 draw-in groove for fixing the outer pullover key of threaded block.
Connection seat is elastomer, and material includes but not limited to natural rubber, PVC, PE etc.；Connect seat periphery to be distributed up and down Article 1～4, convex tendon, is close to for outer casing inner wall and threaded block inwall or outer wall, reaches sealing effectiveness；Two ends use hollow design with Threaded block assembles.Connect seat peripheral distribution and have 1-10 protruding voussoir for fixing the connection seat key of threaded block.
This syringe is after injection, in the draw-in groove of the T-shaped Snap joint seat of core bar front end, it is impossible to again pass in and out； Connection seat and threaded seat are pulled out and fracture core bar by pumpback core bar, reach to prevent the purpose of needle pricks medical worker, it Decrease an O RunddichtringO part than common needling prevention injector, thus decrease assembling procedure, reduce production cost
The present invention in use, is the same with common injector for medical purpose operating procedure.Product is injected make to be finished completely After, core bar head is in T shape or bullet shaped is snapped in connection seat.Connection seat is retracted by pumpback core bar, is simultaneously connected with seat and retreats Again threaded block is returned to jacket internal the core bar that fractures.Reach the self-destruction injection protecting needle point to prevent medical worker to be wounded by stabbing Device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of overcoat；
Fig. 3 is the draw-in groove schematic diagram of overcoat；
Fig. 4 is the structural representation of core bar；
Fig. 5 is the structural representation of plug；
Fig. 6 be connect seat face cross-sectional schematic；
Fig. 7 is the schematic side view connecting seat；
Fig. 8 is the schematic top plan view connecting seat；
Fig. 9 be threaded block face cross-sectional schematic；
Figure 10 is the schematic side view of threaded block；
Figure 11 is the schematic top plan view of threaded block；
Figure 12 is the assembling enlarged diagram of core bar, plug, connection seat and threaded block.
Figure 13 is the assembling enlarged diagram of overcoat, core bar, plug, connection seat and threaded block.
Detailed description of the invention
Below in conjunction with embodiment and compare accompanying drawing the present invention is described in further detail.
A kind of anti-acupuncture self-destroyed syringe, is mainly made up of overcoat 1, core bar 2, plug 3, connection seat 4 and threaded block 5, can Wear entry needle 6.
Inwall 11 even spread of overcoat 1 has had the silicone oil of lubrication, head 12 to be distributed 1-10 draw-in groove 13, draw-in groove 13 for fixing the key 51 of threaded block.Draw-in groove 13 angle is that 0-180 degree supports threaded block key.
The head 21 of core bar 2 is in T shape or bullet shaped, and this head 21 is in embedding the hollow connecting seat 4 head 41.Core The external diameter F1 of bar 2 head 21 is than the external diameter F2 big 0.05～4.0mm connecting seat 4 top 41.To ensure core bar 2 head 21 and to connect The hollow space of joint chair 4 head 41 is wrapped completely.Head 22 is in T shape or bullet shaped, for embedding in plug 3 head 34 In empty.The external diameter G1 of core bar 2 head 22 than the external diameter G2 big 0.05～4.0mm. of plug 3 bottom 34 to ensure core bar 2 head 22 are wrapped completely with the hollow space of plug 3 bottom 34 and to be locked.The head 23 of core bar 2 is triangular in shape, and this head 23 is for embedding Enter in the hollow of plug 3 bottom 33.It is wrapped completely with the hollow space of guarantee core bar 2 head 22 with plug 3 bottom 33 and is locked.
The periphery of plug 3 is distributed 1～4 convex tendon 31 up and down, is close to the inwall 11 of overcoat 1, the external diameter ratio of convex tendon 31 The internal diameter of inwall 11 wants big 0.05mm～4.0mm, to reach sealing effectiveness；The top 32 of plug 3 uses hollow to set with bottom 33 Meter, bosom linking part 34 is hollow.The external diameter G1 of core bar 2 head 22 is than the external diameter G2 big 0.05 of plug 3 bottom 33 ～4.0mm, it is locked ensureing that the hollow space of core bar 2 head 22 and plug 3 bottom 34 is wrapped completely.
The upper end connecting seat 4 is provided with hollow space 41, and this head 41 is used for wrapping up core bar 2 head 21.To ensure core bar 2 Head 21 is wrapped completely with the hollow space being connected seat 4 head 41.The periphery upper part connecting seat 4 is furnished with 1～4 convex tendon 42, be close to inwall or the outer wall 52 of threaded block 5, the external diameter 0.05mm bigger than the internal diameter of inwall or outer wall 52 of convex tendon 42～ 4.0mm, to reach sealing effectiveness；The periphery lower part connecting seat 4 is furnished with 1～4 convex tendon 43, is close to the inwall 14 of overcoat 1, External diameter 0.05mm～4.0mm bigger than the internal diameter of outer casing inner wall 14 of convex tendon 43, to reach sealing effectiveness；Connect seat 4 periphery to divide Being furnished with 1-10 protruding voussoir 44 for fixing the key 51 of threaded block 5, voussoir 44 angle is 0-180 degree wedge angle.
Threaded block 5 lower end is provided with cavity 52, is close to reach sealing effectiveness with head 42 convex tendon being connected seat 4；Screw thread Seat 5 lower ends are provided with 1-20 key 51, and multiple keies open and support at overcoat 1 draw-in groove 13, support what threaded block injection produced Retreat profit.Key 51 inclined-plane is 0-180 degree angle.Threaded block 5 lower end arranges annular convex rib 52, is used for holding connection seat 4 upper end The convex tendon of 42, is pulled to reach in overcoat 1 inner chamber the purpose of anti-acupuncture when connecting seat and retreating by threaded block.

Claims (8)

1. an anti-acupuncture self-destroyed syringe, including overcoat, core bar, plug, connection seat and threaded block, entry needle leads to threaded block Crossing threaded, the inner chamber even spread at overcoat has had the silicone oil of lubrication, it is characterised in that: in the inner portion of overcoat It is provided with 1-10 draw-in groove；The head of core bar is in T shape or bullet shaped, and the head of core bar embeds and connects in seat inner chamber draw-in groove, returns Seat pull-out will be connected during core_pulling pole.
Anti-acupuncture self-destroyed syringe the most according to claim 1, it is characterised in that: the periphery of plug is distributed 1～4 up and down Bar convex tendon, two ends use hollow design to assemble with core bar.
Anti-acupuncture self-destroyed syringe the most according to claim 1, it is characterised in that: threaded block is distributed 1-20 threaded block Key, multiple threaded block keies open support at overcoat draw-in groove.
Anti-acupuncture self-destroyed syringe the most according to claim 1, it is characterised in that: inner chamber is provided with annular slot, is used for Connect seat to be drawn in overcoat by threaded block.
Anti-acupuncture self-destroyed syringe the most according to claim 1, it is characterised in that: outer head segment is furnished with 1-10 draw-in groove For fixing the outer pullover key of threaded block.
Anti-acupuncture self-destroyed syringe the most according to claim 1, it is characterised in that: connection seat is elastomer.
Anti-acupuncture self-destroyed syringe the most according to claim 6, it is characterised in that: connect seat periphery and be distributed 1～4 up and down Bar convex tendon, two ends use hollow design to assemble with threaded block.
Anti-acupuncture self-destroyed syringe the most according to claim 7, it is characterised in that: connecting seat peripheral distribution has 1-10 individual convex Play voussoir for fixing the connection seat key of threaded block.
CN201610775531.7A 2016-08-31 2016-08-31 Needle stab proofing self-destruction syringe Pending CN106310458A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610775531.7A CN106310458A (en) 2016-08-31 2016-08-31 Needle stab proofing self-destruction syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610775531.7A CN106310458A (en) 2016-08-31 2016-08-31 Needle stab proofing self-destruction syringe

Publications (1)

Publication Number Publication Date
CN106310458A true CN106310458A (en) 2017-01-11

Family

ID=57788436

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610775531.7A Pending CN106310458A (en) 2016-08-31 2016-08-31 Needle stab proofing self-destruction syringe

Country Status (1)

Country Link
CN (1) CN106310458A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2691617Y (en) * 2003-11-19 2005-04-13 徐昊华 Disposable gelf-destroyed safety injector
CN102284112A (en) * 2010-06-17 2011-12-21 昆山和兴医疗科技有限公司 Safe self-destructing injector with locking structure
CN102327658A (en) * 2011-10-20 2012-01-25 柏保东 Easily-assembled high-safety self-destruction injector
US20150314079A1 (en) * 2012-04-27 2015-11-05 Linfeng Zhang Needle base retractable-type safe self-locking-type self-destructing syringe
CN105597196A (en) * 2016-03-22 2016-05-25 上海康德莱医疗器械股份有限公司 Safe self-destructing syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2691617Y (en) * 2003-11-19 2005-04-13 徐昊华 Disposable gelf-destroyed safety injector
CN102284112A (en) * 2010-06-17 2011-12-21 昆山和兴医疗科技有限公司 Safe self-destructing injector with locking structure
CN102327658A (en) * 2011-10-20 2012-01-25 柏保东 Easily-assembled high-safety self-destruction injector
US20150314079A1 (en) * 2012-04-27 2015-11-05 Linfeng Zhang Needle base retractable-type safe self-locking-type self-destructing syringe
CN105597196A (en) * 2016-03-22 2016-05-25 上海康德莱医疗器械股份有限公司 Safe self-destructing syringe

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