CN1689655A - Sleeve control type safe type injector - Google Patents
Sleeve control type safe type injector Download PDFInfo
- Publication number
- CN1689655A CN1689655A CN 200410035031 CN200410035031A CN1689655A CN 1689655 A CN1689655 A CN 1689655A CN 200410035031 CN200410035031 CN 200410035031 CN 200410035031 A CN200410035031 A CN 200410035031A CN 1689655 A CN1689655 A CN 1689655A
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle stand
- needle
- control type
- type safety
- 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
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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
- A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
-
- 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
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
- A61M5/345—Adaptors positioned between needle hub and syringe nozzle
-
- 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
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
- A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
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 sleeve controlled safe syringe may be connected with one needle, and includes one syringe tube with holed tube body and needle seat connecting part; one push rod with push body and push-pull part; one needle seat set to the needle seat connecting part and with one outer clamping part; one outer tube with one tube body set in the clamping part, and sleeve hole connected to the tube body and one needle seat clamping part in the back section. When the syringe tube is pulled backwards relatively to the outer tube to drive the needle seat, the needle seat is clamped to the clamping part, the needle is left inside the sleeve hole of the outer tube and the needle seat connecting part in the syringe tube may be detached from the needle seat.
Description
Technical field
The present invention is relevant with syringe, is meant a kind of sleeve control type safety injector especially.
Background technology
Press, traditional syringe after having injected, not in addition sheathed protection of syringe needle, and often allow user be subjected to pinprick; Or injection may be used again, thereby will cause the situation that infected by the injector.
Therefore, promptly have the syringe of a lot of safetys to produce, but its design major part is all too complicated, and operation is not very convenient; Maximum problem is to have no idea to cooperate general traditional syringe to use, and must design one new structure use, and therefore produces the heterogamous variety of problems of product.
Summary of the invention
Supervise in above-mentioned shortcoming, the applicant is pains research and development sleeve control type safety injector of the present invention in addition, and it can reach the following purpose of respectively creating.
Main purpose of the present invention is promptly providing a kind of sleeve control type safety injector, and it can simple structure and mode of operation, reaches needle retractable to tube, prevents pinprick and has safety.
An of the present invention purpose more providing a kind of sleeve control type safety injector, and it can make member self-destructions such as push rod or detent plug group after finishing injection, and can prevent that syringe is repeated to use again.
Edge is to take off the creation purpose before reaching, a kind of sleeve control type safety injector provided by the present invention 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, a pin base jointing part;
One push rod has a shaft, and a push-and-pull portion is located at the push-and-pull usefulness of its rear end for finger;
One needle stand is to be installed in the pin base jointing part of syringe and to establish for connecing of syringe needle, and this needle stand has an outer clamping;
One urceolus has a stack shell, the movable stack shell that is socketed on this syringe of a sleeve joint hole, and its back segment is located in a needle stand card division; This needle stand was to be subjected to this syringe interlock when the relative urceolus of this syringe was pulled back backward, and this pin base fastener is located at the needle stand card division of this urceolus, syringe needle is kept somewhere in the sleeve joint hole of this urceolus, and the pin base jointing part of this syringe can break away from this needle stand.
It is to be a kind of type self-destroyed syringe.
But it also includes a detent plug group and is arranged in the syringe precalculated position with having a disconnected piston part dialysis, and can prevent that syringe is used again.
Wherein this detent plug group is to have a containing hole that cock body plug in the form of annular discs and movable is located at this syringe, and a card ends edge, and to be formed at this cock body be elastically deformable ground is arranged in this syringe forward when retreating by a fastener now of this syringe fastener.
Wherein but this detent plug group also has a surge drum and is arranged in this cock body and extends back with contracting in the elasticity and be formed with a balance and support edge and support the containing hole hole wall of being located at this syringe.
Wherein this needle stand is to be coated at syringe.
Wherein this needle stand is loaded on syringe in being.
Wherein this needle stand has an outer socket joint portion, and this urceolus have a pin base jointing part can be for the outer socket joint portion that is installed with this needle stand.
Wherein this needle stand also has a location division, and this urceolus also has the location division that this needle stand just can be located in a location division.
Wherein the outer clamping of this needle stand is to establish a fixture block for a flexure strip in an end, and the needle stand card division of this urceolus is that it can end for the fixture block card of this needle stand by two fixture blocks and an intervenient draw-in groove.
Description of drawings
More understand characteristics of the present invention and effect for making, be described as follows below in conjunction with embodiment and conjunction with figs., wherein:
Fig. 1 is the plane view sub-anatomy of a preferred embodiment of the present invention.
Fig. 2 is the plane assembled sectional view of a preferred embodiment of the present invention.
Fig. 3 is a mode of operation figure of a preferred embodiment of the present invention, shows the state of taking out medicine.
Fig. 4 is another operation chart of a preferred embodiment of the present invention, and the demonstration push rod is shifted the detent plug group onto the state at the end.
Fig. 5 is the another operation chart of a preferred embodiment of the present invention, shows that push rod is pulled back and it breaks the state of portion's dialysis.
Fig. 6 is the sheathed sketch map of a preferred embodiment of the present invention operation urceolus.
Fig. 7 is a preferred embodiment of the present invention operation urceolus disengaged position figure.
Fig. 8 is the plane assembled sectional view of another preferred embodiment of the present invention, shows that needle stand is installed in the syringe endoporus.
Fig. 9 is the present invention's plane assembled sectional view of a preferred embodiment again, shows that syringe needle directly is arranged in needle stand.
The specific embodiment
See also Fig. 1 to Fig. 7, a preferred embodiment of the present invention sleeve control type safety injector is can connect to establish a syringe needle 60 it is for one universal in present embodiment, and wherein this syringe needle 60 has one and meets portion 61, and a needle body 63 is arranged in this and meets portion 61.
This syringe of the present invention 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 60 directions by this stack shell 11, one fastener 15 is formed at leading portion in this containing hole 12, one pin base jointing part 16 is located at this stack shell 11 front ends, one hand-held ear 17 is arranged in this stack shell 11 rear ends, and push rod retaining edge 18 is located in this containing hole 12 near opening part.
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, be with plastic material PE (Polyethylene, polyethylene) ejection formation, 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.
In addition, but this detent plug group 40 more has a surge drum 48 to be annular cylinder shape to be arranged in this cock body 41 and to extend back with contracting in the elasticity, and be formed with a balance in these surge drum 48 peripheries and support edge 481 and support containing hole 12 hole walls of being located at this syringe 10, it is the effects that also can have sealing concurrently that this balance is supported edge 481; And more be formed with an annular groove 49 in these cock body 41 inboards, make these cock body 41 more convenient strains when pushing ahead.
One needle stand 50, has a pedestal 51, one syringe meets portion 52 and is formed with the pin base jointing part 16 that a trepanning can be socketed on syringe 10, one syringe needle meets portion 53 can be for the portion that connects 61 sockets of this syringe needle 60, one through hole 54, being provided with screw threads in the one outer socket joint portion 55 week can be for being spirally connected of this syringe needle 60, and a location division 56 is recessed for a ring, and it is respectively established an outer clamping 57 fixture block 59 and form in an end by three flexure strips 58.
One urceolus 70, has a stack shell 71, one sleeve joint hole, 72 openings lead in an end, one pin base jointing part 73 is located at that opening holds in addition and be formed with a sleeve joint hole 74 can be for the outer socket joint portion 55 that is installed with this needle stand 50, and one location division 75 be that convex hoop shape just can be located and firmly 56, the one needle stand card divisions 76, location division of this needle stand 50 be located at the rear end it formed by two fixture blocks 77,78 and between the draw-in groove 79 of the two.
The operational scenario of relevant present embodiment is described as follows now:
Fig. 3 is a mode of operation figure of a preferred embodiment of the present invention, shows the state of taking out medicine; In the stroke that pushes away or draw, it is to containing hole 12 hole walls of being located at this syringe 10 that the balance of these detent plug group 40 surge drums 48 is supported edge 481, and can make this detent plug group 40 in keeping balance.
As shown in Figure 4, this push rod 30 is pushed away forward make 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; Then, shift this push rod 30 onto cock body 41 that the end makes this detent plug group 40 and compress push stopping part 13, and injecting liquid drug can be gone out to this syringe 10.
This push rod 30 is backward during pullback operation, because the card of this detent plug group 40 ends the fastener 15 that edge 42 is butted on retaining this syringe 10, this push rod 30 is promptly broken portion's 34 dialysis by it, make shackle member 33 and the detent plug group 40 of these push rod 30 dialysis still be limited to the containing hole 12 of this syringe 10, as shown in Figure 5, being the self-destruction state can't re-use.
Then, as shown in Figure 6, move to two laybacks this syringe 10 and urceolus 70 are relative, this syringe 10 is this needle stand 50 of interlock and makes its syringe connect the pin base jointing part 73 that portion 52 breaks away from these urceolus 70; At last, the fixture block 59 of the outer clamping 57 of this needle stand 50 is arranged in the needle stand card division 76 of this urceolus 70, and this syringe needle 60 still is arranged in needle stand 50 and is located in the sleeve joint hole 72 of this urceolus 70 and can not drops out, and therefore has the effect that prevents by pinprick, and become safety injector, as shown in Figure 7.
Learnt that by present embodiment structure of the present invention and effect can make and reach self-destruction earlier and prevent that syringe is repeated to use, now can be operated the safe effect that makes the syringe needle protection and prevent pinprick, is at one stroke two.
It must be emphasized that at this; syringe of the present invention does not limit aforesaid type self-destroyed structure; other are as type self-destroyed syringes of member such as various plugs, push rods, but all application combination becomes the present invention, and become the safety injector that the present invention possesses self-destruction and Tip protection simultaneously.
Except above embodiment, the present invention also can implement as follows:
Cooperate with the installing of syringe with regard to needle stand, also can be as follows:
Before take off embodiment, as shown in Figure 8, needle stand 50A of the present invention also can be the pin base jointing part 16A endoporus that is installed in the syringe front end, is not socketed on syringe front end outside and do not limit; And the outer clamping 57A of this needle stand 50A to be one be arranged in needle stand and equally can be for the needle stand card division that is arranged in this urceolus.
In addition, the combination and variation of this needle stand and syringe needle, also can be as follows:
As shown in Figure 9, the needle body of this syringe needle is directly to be arranged in this needle stand 50B, and the outer socket joint 55B of portion of this needle stand 50B is slightly different with the pin base jointing part 73B fit shapes of urceolus; In like manner, the needle body of this syringe needle also can directly be arranged in aforesaid needle stand 50A.
In addition, in the various types of aforementioned needle stand, the outer clamping of this needle stand also can be separate a member of engaging with pedestal and do not limit with needle stand be one.
By above each embodiment explanation, it is as follows to conclude characteristics of the present invention:
1. sleeve control type safety injector of the present invention, it can simple structure and mode of operation, reaches needle retractable to tube, prevents pinprick and has safety.
2. sleeve control type safety injector of the present invention, it can make member self-destructions such as push rod or detent plug group after finishing injection, and can prevent that syringe is repeated to use again.
Claims (10)
1. a sleeve control type safety injector 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, a pin base jointing part;
One push rod has a shaft, and a push-and-pull portion is located at the push-and-pull usefulness of its rear end for finger;
One needle stand is to be installed in the pin base jointing part of syringe and to establish for connecing of syringe needle, and this needle stand has an outer clamping;
One urceolus has a stack shell, the movable stack shell that is socketed on this syringe of a sleeve joint hole, and its back segment is located in a needle stand card division; This needle stand was to be subjected to this syringe interlock when the relative urceolus of this syringe was pulled back backward, and this pin base fastener is located at the needle stand card division of this urceolus, syringe needle is kept somewhere in the sleeve joint hole of this urceolus, and the pin base jointing part of this syringe can break away from this needle stand.
2. according to the described sleeve control type safety injector of claim 1, it is characterized in that it is to be a kind of type self-destroyed syringe.
3. according to the described sleeve control type safety injector of claim 2, it is characterized in that, but its also include a detent plug group and be arranged in the syringe precalculated position with having a disconnected piston part dialysis, and can prevent that syringe is used again.
4. according to the described sleeve control type safety injector of claim 3, it is characterized in that, wherein this detent plug group is to have a containing hole that cock body plug in the form of annular discs and movable is located at this syringe, and a card ends edge, and to be formed at this cock body be elastically deformable ground is arranged in this syringe forward when retreating by a fastener now of this syringe fastener.
5. according to the described sleeve control type safety injector of claim 4, it is characterized in that, but wherein this detent plug group also has a surge drum and is arranged in this cock body and extends back with contracting in the elasticity and be formed with a balance and support edge and support the containing hole hole wall of being located at this syringe.
6. according to the described sleeve control type safety injector of claim 1, it is characterized in that wherein this needle stand is to be coated at syringe.
7. according to the described sleeve control type safety injector of claim 1, it is characterized in that wherein this needle stand is loaded on syringe in being.
8. according to the described sleeve control type safety injector of claim 1, it is characterized in that wherein this needle stand has an outer socket joint portion, and this urceolus have a pin base jointing part can be for the outer socket joint portion that is installed with this needle stand.
9. according to the described sleeve control type safety injector of claim 1, it is characterized in that wherein this needle stand also has a location division, and this urceolus also has the location division that this needle stand just can be located in a location division.
10. according to the described sleeve control type safety injector of claim 1, it is characterized in that, wherein the outer clamping of this needle stand is to establish a fixture block for a flexure strip in an end, and the needle stand card division of this urceolus is that it can end for the fixture block card of this needle stand by two fixture blocks and an intervenient draw-in groove.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410035031 CN1689655A (en) | 2004-04-19 | 2004-04-19 | Sleeve control type safe type injector |
| US10/928,274 US7056301B2 (en) | 2003-09-05 | 2004-08-30 | Syringe |
| JP2006525028A JP2007503891A (en) | 2003-09-05 | 2004-09-03 | Syringe |
| EP04762152A EP1661594A4 (en) | 2003-09-05 | 2004-09-03 | Syringe |
| PCT/CN2004/001017 WO2005023345A1 (en) | 2003-09-05 | 2004-09-03 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410035031 CN1689655A (en) | 2004-04-19 | 2004-04-19 | Sleeve control type safe type injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1689655A true CN1689655A (en) | 2005-11-02 |
Family
ID=35345604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410035031 Pending CN1689655A (en) | 2003-09-05 | 2004-04-19 | Sleeve control type safe type injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1689655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015007020A1 (en) * | 2013-07-17 | 2015-01-22 | Wei Yingde | Simple and safe self-destructive syringe |
| CN105142707A (en) * | 2012-12-20 | 2015-12-09 | 德尔塔梅德股份公司 | Cannula needle with protective member |
| WO2019010689A1 (en) * | 2017-07-14 | 2019-01-17 | 洪志华 | Safety syringe |
-
2004
- 2004-04-19 CN CN 200410035031 patent/CN1689655A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105142707A (en) * | 2012-12-20 | 2015-12-09 | 德尔塔梅德股份公司 | Cannula needle with protective member |
| WO2015007020A1 (en) * | 2013-07-17 | 2015-01-22 | Wei Yingde | Simple and safe self-destructive syringe |
| WO2019010689A1 (en) * | 2017-07-14 | 2019-01-17 | 洪志华 | Safety syringe |
| EP3653245A4 (en) * | 2017-07-14 | 2021-01-06 | Hung, Chih-Hua | Safety syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |