CN2638752Y - Self-destruction syringe - Google Patents

Self-destruction syringe Download PDF

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Publication number
CN2638752Y
CN2638752Y CN 03252617 CN03252617U CN2638752Y CN 2638752 Y CN2638752 Y CN 2638752Y CN 03252617 CN03252617 CN 03252617 CN 03252617 U CN03252617 U CN 03252617U CN 2638752 Y CN2638752 Y CN 2638752Y
Authority
CN
China
Prior art keywords
syringe
plug group
detent plug
push rod
push
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
Application number
CN 03252617
Other languages
Chinese (zh)
Inventor
刘蓉娥
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.)
Shandong Ruitong Polymer Medical Instrument Ltd Co
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN 03252617 priority Critical patent/CN2638752Y/en
Application granted granted Critical
Publication of CN2638752Y publication Critical patent/CN2638752Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking 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
    • A61M5/50—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

Landscapes

  • 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)

Abstract

The utility model provides a self-destructing injector, which can be connected with a needle. The injector comprises an injector cylinder which has a cylinder body with an accepteance hole, a push blocking part which is formed from the cylinder body to the needle, a blocking part which is positioned at the inner edge of the contained hole, a needle which is used for connecting the needle and a pushing rod with a rod body. A fastening unit is arranged at the rod body, and a push-pull part which is arranged at the back end so to be pushed or pulled by hand; a plug limiting group which has a stopper with round disk shape and a contained hole which can moveably arranged at the injector cylinder; a block border which is formed at the stopper and is a blocking part which can flexibly distort to cross the blocking part of the injector cylinder and stopped at the blocked part of the injector cylinder when the back, a blocking and connecting unit which is arranged at the blocking body and can block with the blocking unit and continuously move with the push rod; when the plug limiting group is pulled back by the push-pull rod, the blocking unit of the push-pull unit or the blocking unit of the plug limiting group can be separated, the pushing rod is pulled back, while the plug limiting group is still blocked in the injector cylinder, make the injector cylinder can not be used once more.

Description

Self-destruction syringe
Technical field
This utility model is relevant with syringe, is meant a kind of self-destruction syringe especially.
Background technology
Press, conventional injector may be used injection again, thereby will be caused the situation that infected by the injector after having injected.
Therefore, the self-destruction syringe that multiple different structure promptly arranged in response to and give birth to, still, wherein be no lack of multiple very complicated design, the higher or operating difficulties of its cost and can't extensively being used; In addition, some simple designs are arranged again, but it may cause the correctness of injection bad, perhaps still reusable, or brought subject matters such as recycling the back use easily.
For example, general type self-destroyed syringe, but normally directly integrally formed its dialysis of a fastener and can be limited to the syringe predetermined position on push rod, such design major part must add a plug, because the card of die forming demoulding integral type ends comparatively difficulty of edge, perhaps its die parting line must be positioned at periphery or vertically can't seal with the endoporus of this syringe, causes leakage easily.
The applicant supervises in above-mentioned shortcoming, therefore in addition pains research and development this utility model self-destruction syringe, and it can reach the following purpose of respectively creating.
The utility model content
Main purpose of the present utility model is promptly providing a kind of self-destruction syringe, and it can make the detent plug group remain in this syringe inside after finishing injection, and can prevent to reuse.
An of the present utility model purpose more providing a kind of self-destruction syringe, and it can make the easy to manufacture of member, combination and easy to operate.
Edge is to take off the creation purpose before reaching, a kind of self-destruction syringe provided by the utility model is to establish for connecing of a syringe needle, and this syringe includes:
One syringe has a stack shell and is provided with a containing hole, and a push stopping part is formed to the syringe needle direction by this stack shell, and a fastener is formed at this containing hole inner edge, and a syringe needle portion of connecing is for the installing of syringe needle;
One push rod has a shaft, and a shackle member is arranged in this shaft, and a push-and-pull portion is located at the push-and-pull usefulness of its rear end for finger;
One detent plug group, have cock body plug in the form of annular discs and movable and be located at the containing hole of this syringe, one card ends edge, and to be formed at this cock body be elastically deformable ground is arranged in this syringe forward when retreating by the fastener now of this syringe fastener, and a shackle member is arranged in this cock body and can makes with the shackle member clamping of this push rod and this push rod interlock; When this detent plug group was pulled back by this push rod, the shackle member of the shackle member of this push rod or this detent plug group was to produce dialysis, and this push rod is pulled back and this detent plug group still is limited to this syringe, and syringe can't be used once again.
Wherein the card of this detent plug group ends the containing hole that edge is salable this syringe.
Wherein this detent plug group also is provided with the containing hole that a plug seals this syringe.
Wherein this push rod also has one and supports portion, and this detent plug group also have one support portion can with the portion that the supports pushing and pressing of this push rod.
Wherein this detent plug group also has the syringe needle that an auxiliary card division can be clamped in this syringe and connects portion's endoporus.
Wherein the shackle member of this detent plug group is the calvus for a plurality of elastically deformables.
Wherein this push rod has the portion of breaking and is formed between this shaft and shackle member.
Wherein this detent plug group has an annular groove in this cock body inboard.
Wherein this detent plug group is with the mould plastic jetting forming, and it is formed with a die parting line and is positioned at this cock body outer rim end.
Wherein the cock body of this detent plug group is tapered.
Description of drawings
More understand characteristics of the present utility model and effect for making, following examples and conjunction with figs. are described as follows, wherein:
Fig. 1 is the assembled sectional view of this utility model one preferred embodiment.
Fig. 2 is the plane exploded view of this utility model one preferred embodiment.
Fig. 3 is a mode of operation figure of this utility model one preferred embodiment, shows the urgent state that supports the fastener of syringe of detent plug group.
Fig. 4 is an operation chart of this utility model one preferred embodiment, and the demonstration push rod is shifted the detent plug group onto the state at the end.
Fig. 5 is an operation chart of this utility model one preferred embodiment, shows that push rod retracts the state of interlock detent plug group a little.
Fig. 6 is an operation chart of this utility model one preferred embodiment, shows the state of the portion that the breaks dialysis of push rod.
Fig. 7 is the assembled sectional view of another detent plug group of this utility model and syringe.
Fig. 8 is this utility model assembled sectional view of a detent plug group and syringe again.
Fig. 9 is the cutaway view of the another detent plug group of this utility model.
Figure 10 is the end-view of the another detent plug group of this utility model.
Figure 11 is the constitutional diagram that this utility model detent plug group installs a plug additional.
Figure 12 is the constitutional diagram that this utility model detent plug group installs another plug additional.
Figure 13 is the more cutaway view of a detent plug group of this utility model, shows that this shackle member is formed with the structure of some claws.
Figure 14 is the plane decomposing schematic representation of this utility model push rod and detent plug group, shows the state that the two interface arrangment exchanges.
Figure 15 is the cutaway view of the another detent plug group of this utility model, shows that its cock body generally is the discoid structure of planar shaped.
The specific embodiment
See also Fig. 1 to Fig. 6, this utility model one preferred embodiment self-destruction syringe is to connect to establish a syringe needle N; This syringe includes:
One syringe 10, having a stack shell 11 is straight-tube shape and is provided with a containing hole 12, one push stopping part 13 is formed to syringe needle N direction by this stack shell 11, one fastener 15 is formed at leading portion in this containing hole 12, one syringe needle connects the installing of portion 16 for syringe needle (N), one hand-held ear 17 is arranged in this stack shell 11 rear ends, and push rod retaining edge 18 is located near containing hole 12 opening parts.
One push rod 30, have a shaft 31 and can plug the containing hole 12 of this syringe 10, one shackle member 33 is arranged in this shaft 31, one breaks portion 34 is formed between this shaft 31 and the shackle member 33, one connecting portion 35 is formed at this shackle member 33 peripheries, one supports portion 36 is positioned at this shaft 31 front ends, and a push-and-pull portion 37 is located at the push-and-pull of its rear end for finger, and a removal stop section 38 can support the push rod retaining edge 18 that terminates in this syringe 10.
One detent plug group 40, has the tapered discoid and strain slightly of a cock body 41, one card end that edge 42 is formed at these cock body 41 peripheries and can be forward by and be limited to the fastener 15 of this syringe 10 backward, this card ends the containing hole 12 that edge 42 is proper salable these syringes 10 in present embodiment, one shackle member 43 is arranged in 41 pairs of this cock bodys should push rod 30 directions, one blocked hole 44 is formed in this shackle member 43, one connecting portion 45 be formed at this blocked hole 44 and can with connecting portion 35 hook joints of this push rod 30, one support portion 46 can with this push rod 30 support portion's 36 contacts, and an extension rod 47 is arranged in front end.
The operational scenario of relevant present embodiment is described as follows:
When it promotes to operate forward, as shown in Figure 3, be that this push rod 30 pushes away forward and makes the portion 46 that supports that supports portion's 36 these detent plug groups 40 of pushing and pressing with it, the card of this detent plug group 40 end slightly strain and passing through of fastener 15 that edge 42 promptly compels to support this syringe 10; Now as shown in Figure 4, is shifted this push rod 30 onto cock body 41 that the end makes this detent plug group 40 and is compressed push stopping part 13 to this syringe 10, and injecting liquid drug can be gone out.
During pullback operation, as shown in Figure 5, this push rod 30 is pulled back and is promptly driven this detent plug group 40 displacements backward for it, and make the card of this detent plug group 40 end edge 42 retaining is butted on the fastener 15 of this syringe 10, and makes this detent plug group 40 displacement again; At this moment,, and make push rod 30 to pull back if continuing firmly to spur this push rod 30 more promptly can make it break portion's 34 dialysis, and the containing hole 12 that the shackle member 33 of these push rod 30 dialysis and detent plug group 40 still are limited to this syringe 10, as shown in Figure 6.
Therefore, this syringe promptly is the alleged self-destruction state of industry this moment, can't be repeated to use again and has a safety.
In addition, because this detent plug group 40 is adopted single-piece, therefore can form a die parting line 4A by the axial demoulding and be positioned at its cock body 41 ends, so its card ends edge 42 and not influenced by its die parting line 4A and still can keep good sealing with the containing hole 12 of this syringe 10, and can not use plug.
Member manufacturing cost of the present utility model can greatly reduce, and possesses self-destroying function, therefore is expected to replace the market of traditional type syringe.
Except above embodiment, this utility model also can be implemented as follows:
At first, as shown in Figure 7, wherein this detent plug group is the extension rod that also can not include among the last embodiment.
Perhaps, as shown in Figure 8, this detent plug group also has an auxiliary card division 48 again and is the barrel mast shape and is formed at this extension rod, and can engage with the endoporus that the syringe needle of this syringe meets portion and engaging power when providing some to retract.
As Fig. 9 and shown in Figure 10, the auxiliary card division of this detent plug group is to form some raised lines 481 can correspondingly be scheduled to the infusion hole that tightness is arranged in this syringe; And this detent plug group more is formed with an annular groove 49 in this cock body inboard, makes the more convenient strain of this cock body when pushing ahead.
Moreover as Figure 11 and shown in Figure 12, this detent plug group also can have more rear end or the front end that a plug 50,50A are installed in this cock body, so that the containing hole sealing function of this syringe relatively to be provided.
And as shown in figure 13, but the shackle member 43A of this detent plug group is its elastic bending deflection of some calvus, and its connecting portion 45A is formed in this each shackle member 43A for a reverse-hook shape.
Or, as shown in figure 14, the shackle member 43B of the shackle member 33B of this push rod and this detent plug group be with last embodiment in structure exchange, and this push rod can and separate with the main body dialysis of this detent plug group the shackle member 43B pulling of this detent plug group when pulling back.
And as shown in figure 15, the cock body 41A of this detent plug group is that also can be planar shaped discoid.
By above each embodiment explanation, it is as follows to conclude characteristics of the present utility model:
1. the utility model self-destruction syringe, it can make the detent plug group keep being limited to after finishing injection This syringe inside, and can prevent from reusing.
2. the utility model self-destruction syringe, the combination of its detent plug group and push rod and isolating construction letter Easily, the simple and low cost of manufacture of member, and have the effects such as easy to operate.

Claims (10)

1. a self-destruction syringe is to establish for connecing of a syringe needle, it is characterized in that this syringe includes:
One syringe has a stack shell and is provided with a containing hole, and a push stopping part is formed to the syringe needle direction by this stack shell, and a fastener is formed at this containing hole inner edge, and a syringe needle portion of connecing is for the installing of syringe needle;
One push rod has a shaft, and a shackle member is arranged in this shaft, and a push-and-pull portion is located at the push-and-pull usefulness of its rear end for finger;
One detent plug group, have cock body plug in the form of annular discs and movable and be located at the containing hole of this syringe, one card ends edge, and to be formed at this cock body be elastically deformable ground is arranged in this syringe forward when retreating by the fastener now of this syringe fastener, and a shackle member is arranged in this cock body and can makes with the shackle member clamping of this push rod and this push rod interlock.
2. according to the described self-destruction syringe of claim 1, it is characterized in that wherein the card of this detent plug group ends the containing hole that edge is this syringe of sealing.
3. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this detent plug group also is provided with the containing hole that a plug seals this syringe.
4. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this push rod also has one and supports portion, and this detent plug group also have one support portion can with the portion that the supports pushing and pressing of this push rod.
5. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this detent plug group also has the syringe needle that an auxiliary card division can be clamped in this syringe and connects portion's endoporus.
6. according to the described self-destruction syringe of claim 1, it is characterized in that wherein the shackle member of this detent plug group is the calvus for a plurality of elastically deformables.
7. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this push rod has the portion of breaking and is formed between this shaft and shackle member.
8. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this detent plug group has an annular groove in this cock body inboard.
9. according to the described self-destruction syringe of claim 1, it is characterized in that wherein this detent plug group is with the mould plastic jetting forming, it is formed with a die parting line and is positioned at this cock body outer rim end.
10. according to the described self-destruction syringe of claim 1, it is characterized in that wherein the cock body of this detent plug group is tapered.
CN 03252617 2003-09-05 2003-09-05 Self-destruction syringe Expired - Fee Related CN2638752Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03252617 CN2638752Y (en) 2003-09-05 2003-09-05 Self-destruction syringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03252617 CN2638752Y (en) 2003-09-05 2003-09-05 Self-destruction syringe

Publications (1)

Publication Number Publication Date
CN2638752Y true CN2638752Y (en) 2004-09-08

Family

ID=34294212

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03252617 Expired - Fee Related CN2638752Y (en) 2003-09-05 2003-09-05 Self-destruction syringe

Country Status (1)

Country Link
CN (1) CN2638752Y (en)

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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: SHANDONG RUITONG MEDICAL DEVICES POLYMER CO., LTD

Free format text: FORMER OWNER: LIU RONGE

Effective date: 20061020

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20061020

Address after: 272100 Chongwen Road, Jining hi tech Zone, Shandong

Patentee after: Shandong Ruitong polymer medical instrument limited company

Address before: Taichung County of Taiwan Province

Patentee before: Liu Ronge

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