CN204219517U - Self-destructing safety medical needle - Google Patents
Self-destructing safety medical needle Download PDFInfo
- Publication number
- CN204219517U CN204219517U CN201420597542.7U CN201420597542U CN204219517U CN 204219517 U CN204219517 U CN 204219517U CN 201420597542 U CN201420597542 U CN 201420597542U CN 204219517 U CN204219517 U CN 204219517U
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- needle
- snap close
- self
- stopper
- medical needle
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Abstract
The utility model discloses a kind of self-destructing safety medical needle, it comprises: have the sleeve of inner chamber, can move back and forth in the lumen and have the needle stand of syringe needle, the snap close head mutually fastened with needle stand, the snap close head mutually fastened with needle stand and the conduit be connected with snap close head inside, its middle sleeve is provided with stopper and lock catch block at inner chamber, and needle stand is correspondingly provided with stopper against the limiting section coordinated and with lock catch block interlock fit and deformable tight lock part.This utility model is avoided causing cross infection between patient, also avoids medical needle secondary use and stab staff after a procedure or in Destruction, can realize self-destruction simultaneously, and prevent the artificial rotation of medical needle.
Description
Technical field
This utility model relates to a kind of self-destructing safety medical needle.
Background technology
Medical needle, be applied to transfusion or blood sampling, it is a kind of conventional medical apparatus, common medical infusion pin is owing to reusing, if fail effective cleaning-sterilizing, easily between patient, cause cross infection, in order to address this problem, disposable infusion needle obtains and uses widely, but this disposable infusion needle is only require that it realizes single use in management system aspect.Use in order to avoid transfusion needle secondary simultaneously and stab staff after a procedure or in Destruction, cause the serious consequence of viral cross infection, present safety transfusion needle is extensively used in the medical field, and the medical st atute of many countries is more expressly provided must use safety transfusion needle.People develop the disposable safe transfusion needle of many kinds with auto-destruct device in recent years, have ensured that it can only disposable function from technological layer, but complex structure and cost is higher.
Utility model content
This utility model object is: provide a kind of self-destructing safety medical needle, to improve safety and can realize self-destruction, avoids secondary to use, and structure is simple and cost is low.
The technical solution of the utility model is: a kind of self-destructing safety medical needle, it comprises: have the sleeve of inner chamber, can move back and forth in the lumen and have the needle stand of syringe needle, the snap close head mutually fastened with needle stand, the snap close head mutually fastened with needle stand and the conduit be connected with snap close head inside, its middle sleeve is provided with stopper and lock catch block at inner chamber, and needle stand is correspondingly provided with stopper against the limiting section coordinated and with lock catch block interlock fit and deformable tight lock part.
On the basis of technique scheme, comprise following attached technical scheme further:
Described stopper stops needle stand to continue motion, and lock catch block then stops needle stand adverse movement.
Described tight lock part is a pair can the elasticity expansion arm of opening, wherein the end of expansion arm and lock catch block plane abutting contact, and between stopper and limiting section is plane abutting contact.
Described sleeve comprises the pair of catches window being arranged on one end and the butterfly wing being arranged on the other end further.
Described snap close head and snap close window are interlocked, and this snap close head comprises and to fasten with corresponding snap close window for a pair and the fastening arm of elastically deformable and the through hole that is connected with conduit.
Described sleeve is one end open and the semi-open hollow cylinder of the other end, and wherein stopper is between opening and lock catch block, and be provided with between stopper and lock catch block allow expansion arm by and there is the inclined-plane that expansion arm is shunk gradually.
Described limiting section is between syringe needle and tight lock part, and the end fastening arm is provided with outward extending protuberance, and snap close, on snap close window inwall, wherein fastens between arm and snap close head and has the gap allowing elastic deformation when compressive deformation.
The cross section of described inner chamber is polygon or oval or part arc, and the cross section of needle stand be circular, ellipse or polygon or part arc, and when preventing operation, people is the rotation caused.
This utility model advantage is:
This utility model is avoided causing cross infection between patient, also avoids medical needle secondary use and stab staff after a procedure or in Destruction, can realize self-destruction simultaneously, and prevent the artificial rotation of medical needle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further described:
Fig. 1 is the schematic perspective view of this utility model when being in the first state;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the schematic perspective view of this utility model when being in the second state;
Fig. 4 is the sectional view of Fig. 3.
Detailed description of the invention
Embodiment: as Figure 1-4, this utility model provides a kind of specific embodiment of self-destructing safety medical needle, it comprises: have the sleeve 10 of inner chamber 12, can move back and forth in inner chamber 12 and have the needle stand 20 of syringe needle 22, the snap close head 28 mutually fastened with needle stand 20 and the conduit 30 be connected with snap close head 28 inside, its middle sleeve 10 is provided with stopper 120 and lock catch block 122 at inner chamber 12, and needle stand 20 is correspondingly provided with stopper 120 against the limiting section 24 coordinated and with lock catch block 122 interlock fit and the tight lock part 26 of elastically deformable.Wherein stopper 120 stops needle stand 20 to continue motion, and lock catch block 122 then stops needle stand 20 adverse movement.Tight lock part 26 is preferably a pair can the elasticity expansion arm of opening, wherein the end of expansion arm and lock catch block 122 plane abutting contact, and between stopper 120 and limiting section 24 is plane abutting contact.
Sleeve 10 is for one end open and the semi-open hollow elliptical cylinder of the other end, and it comprises further and is arranged on one end and the pair of catches window 14 be oppositely arranged and be arranged on the other end and the butterfly wing 16 adjacent with syringe needle 22.Its split shed allows the discrepancy of syringe needle 22, stopper 120 between opening and lock catch block 122, and be provided with between stopper 120 and lock catch block 122 allow expansion arm by and there is the inclined-plane that expansion arm is shunk gradually.
Needle stand 20 shape and sleeve 10 match, it comprises and syringe needle 22 and snap close head 28 all passage 21, snap close heads 28 that can be interlocked with snap close window 14 of being connected of inside further, and this snap close head 28 comprises and to fasten with corresponding snap close window 14 for a pair and the fastening arm 280 of elastically deformable and the through hole 282 that is connected with conduit 30.Limiting section 24, between syringe needle 22 and tight lock part 26, can prevent needle stand 20 from departing from sleeve 10 simultaneously.Fasten the end of arm 280 and be provided with outward extending protuberance, and when compressive deformation snap close on snap close window 14 inwall.Fasten between arm 280 and snap close head 28 and have the gap allowing elastic deformation.Owing between needle stand 20 and sleeve 10 being cylindroid, hole cooperation, also the cooperation of other shapes can be taked, can effectively prevent needle stand 20 from rotating in sleeve 10, and syringe needle 22 is be fixedly connected with needle stand 20, syringe needle 22 need pinch snap close head 28 when using pumpback, make fastening arm 280 elastic deformation to the cooperation departing from snap close window 14 with releasable catch 28, drive needle stand 20 and syringe needle 22 pumpback backward, and because of be cylindroid between needle stand 20 and sleeve 10, hole coordinates, when preventing operation, people is the rotation caused.
This utility model is avoided causing cross infection between patient, also avoids medical needle secondary use and stab staff after a procedure or in Destruction, can realize self-destruction simultaneously, and prevent the artificial rotation of medical needle.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the spirit of this utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.
Claims (8)
1. a self-destructing safety medical needle, it is characterized in that it comprises: the sleeve (10) with inner chamber (12), can move back and forth in the inner chamber (12) and there is the needle stand (20) of syringe needle (22), the snap close head (28) mutually fastened with needle stand (20), and the conduit (30) to be connected with snap close head (28) inside, its middle sleeve (10) is provided with stopper (120) and lock catch block (122) at inner chamber (12), and needle stand (20) is correspondingly provided with stopper (120) against the limiting section coordinated (24), and with lock catch block (122) interlock fit and deformable tight lock part (26).
2. a kind of self-destructing safety medical needle as claimed in claim 1, it is characterized in that: described stopper (120) stops needle stand (20) to continue motion, and lock catch block (122) then stops needle stand (20) adverse movement.
3. a kind of self-destructing safety medical needle as claimed in claim 2, it is characterized in that: described tight lock part (26) is a pair can the elasticity expansion arm of opening, the wherein end of expansion arm and lock catch block (122) plane abutting contact, and be plane abutting contact between stopper (120) and limiting section (24).
4. a kind of self-destructing safety medical needle as described in claim 1 or 2 or 3, is characterized in that: described sleeve (10) comprises the pair of catches window (14) being arranged on one end and the butterfly wing (16) being arranged on the other end further.
5. a kind of self-destructing safety medical needle as claimed in claim 4, it is characterized in that: described snap close head (28) and snap close window (14) are interlocked, and this snap close head (28) comprises and to fasten with corresponding snap close window (14) for a pair and the fastening arm (280) of elastically deformable and the through hole (282) that is connected with conduit (30).
6. a kind of self-destructing safety medical needle as claimed in claim 4, it is characterized in that: described sleeve (10) is for one end open and the semi-open hollow cylinder of the other end, wherein stopper (120) is positioned between opening and lock catch block (122), and be provided with between stopper (120) and lock catch block (122) allow expansion arm by and there is the inclined-plane that expansion arm is shunk gradually.
7. a kind of self-destructing safety medical needle as claimed in claim 5, it is characterized in that: described limiting section (24) is positioned between syringe needle (22) and tight lock part (26), and the end fastening arm (280) is provided with outward extending protuberance, and snap close, on snap close window (14) inwall, wherein fastens between arm (280) and snap close head (28) and has the gap allowing elastic deformation when compressive deformation.
8. a kind of self-destructing safety medical needle as claimed in claim 4, it is characterized in that: the cross section of described inner chamber (12) is polygon or oval or part arc, and the cross section of needle stand (20) is circle, ellipse or polygon or part arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597542.7U CN204219517U (en) | 2014-10-15 | 2014-10-15 | Self-destructing safety medical needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420597542.7U CN204219517U (en) | 2014-10-15 | 2014-10-15 | Self-destructing safety medical needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204219517U true CN204219517U (en) | 2015-03-25 |
Family
ID=52917669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420597542.7U Active CN204219517U (en) | 2014-10-15 | 2014-10-15 | Self-destructing safety medical needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204219517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561433A (en) * | 2014-10-15 | 2016-05-11 | 江苏采纳医疗科技有限公司 | Auto-disposal safe medical needle |
| JP2021166754A (en) * | 2016-06-03 | 2021-10-21 | ニプロ株式会社 | Needle tip protector for indwelling needle and indwelling needle assembly |
-
2014
- 2014-10-15 CN CN201420597542.7U patent/CN204219517U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561433A (en) * | 2014-10-15 | 2016-05-11 | 江苏采纳医疗科技有限公司 | Auto-disposal safe medical needle |
| JP2021166754A (en) * | 2016-06-03 | 2021-10-21 | ニプロ株式会社 | Needle tip protector for indwelling needle and indwelling needle assembly |
| JP2021166771A (en) * | 2016-06-03 | 2021-10-21 | ニプロ株式会社 | Needle tip protector for indwelling needle and indwelling needle assembly |
| JP7190118B2 (en) | 2016-06-03 | 2022-12-15 | ニプロ株式会社 | Indwelling needle needle tip protector and indwelling needle assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |