CN203436624U - Puncture needle - Google Patents
Puncture needle Download PDFInfo
- Publication number
- CN203436624U CN203436624U CN201320486532.1U CN201320486532U CN203436624U CN 203436624 U CN203436624 U CN 203436624U CN 201320486532 U CN201320486532 U CN 201320486532U CN 203436624 U CN203436624 U CN 203436624U
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- CN
- China
- Prior art keywords
- positioning sleeve
- needle
- needle tubing
- outside fix
- fix cover
- 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 - Lifetime
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a medical appliance, particularly a puncture needle used for medicinal liquor injection by puncturing human body. The purpose of the utility model is to provide a puncture needle with strong firmness and can avoid the risk that a needle tube drops out backwards from a needle seat in clinical operation; the puncture needle comprises a needle base, a needle tube, a metal positioning sleeve and the like; and the puncture needle has the advantages of simple structure, convenient application, reasonable design and the like.
Description
Technical field
This utility model relates to a kind of medical supplies, especially a kind of puncture needle for the human injection's medicinal liquid that punctures.
Background technology
At home in puncture needle series products country, industry standard, for the degree of being connected firmly of needle tubing and needle stand, only stipulated axial tension requirement at present; And clinical practice when operation, inserting needle is mainly by thrust, the withdraw of the needle, mainly by pulling force, has been ignored the propulsive thrust between needle tubing and needle stand, makes like this to there will be needle tubing to exit the risk of needle stand when the puncture of the hard position of human body backward, thereby causes human injury.
The rollback when structure of the puncture needles such as traditional anesthesia, biopsy only relies on the plastic surface of needle tubing and needle stand junction to prevent needle tubing puncture, degree of being connected firmly is lower, during the puncture hard position of human body, just have larger risk, these problems are badly in need of us and are solved.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and have stronger firmness, can avoid needle tubing in clinical manipulation to exit the puncture needle of needle stand risk backward.
In order to achieve the above object, the puncture needle that this utility model is designed, it comprises needle stand, needle tubing, metal positioning sleeve, the afterbody of needle tubing is horn-like, metal positioning sleeve is divided into outside fix cover and interior positioning sleeve, outside fix cover and interior positioning sleeve are cylinder, interior location puts and is provided with through hole and is horn-like in the end of through hole, and interior positioning sleeve is coated on the horn-like place of afterbody of needle tubing and both match, outside fix puts and is provided with shoulder hole, outside fix cover is enclosed within interior location and puts, be coated on the outside of interior positioning sleeve and needle tubing, the horn-like afterbody of needle tubing contacts with the inwall of the end of outside fix cover, play the needle tubing face that outwards positioning sleeve contacts and carry out displacement, and outside fix cover, the centrage in interior positioning sleeve and needle tubing three's hole overlaps, thereby needle tubing, outside fix cover, interior positioning sleeve are all coated and link into an integrated entity by needle stand, and needle stand is provided with the pilot hole communicating with needle tubing.
The aperture putting due to outside fix is less than or equal to the trumpet-shaped aperture of needle tubing afterbody, makes needle tubing can withstand on the end of outside fix cover in puncture, can not exist needle tubing to exit the risk of needle stand backward.
Certainly, described interior positioning sleeve and outside fix cover also can consist of plastics; In order to have certain hardness, not yielding, interior positioning sleeve and outside fix cover are configured to the best by metal material.
The preparation method step of above-described puncture needle is as follows: the first step, according to the planform of above-described needle tubing, interior positioning sleeve and outside fix cover, needle tubing, interior positioning sleeve and outside fix cover are made respectively; Second step, by needle tubing, interior positioning sleeve and outside fix cover, by bonding agent, bonding or close-fitting links into an integrated entity; The 3rd step, puts into mould by needle tubing, interior positioning sleeve and outside fix cover, and single injection-molded forms needle stand, and needle stand links into an integrated entity above-mentioned three, thereby forms puncture needle.
The puncture needle of this utility model gained, the structure of having added double orientation cover on original basis, is fixed on the tail end of needle tubing in positioning sleeve, then positioning sleeve is injection-moulded in needle stand; Because the external diameter of positioning sleeve is greater than the external diameter of needle tubing, therefore greatly increased the contact area with needle stand, thereby increased the firmness that it connects pulling force and thrust, and through once injection moulding, the needle tubing of having avoided existing in clinical manipulation process exits the risk of needle stand backward.Therefore, it has the features such as simple in structure, easy to use and reasonable in design.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, the puncture needle that the present embodiment is described, it comprises needle stand 1, needle tubing 2, metal positioning sleeve, the afterbody of needle tubing 2 is horn-like, metal positioning sleeve is divided into outside fix cover 4 and interior positioning sleeve 3, outside fix cover 4 and interior positioning sleeve 3 are cylinder, interior positioning sleeve 3 is provided with through hole and is horn-like in the end of through hole, and interior positioning sleeve 3 is coated on the horn-like place of afterbody of needle tubing 2 and both match, outside fix cover 4 is provided with shoulder hole, outside fix cover 4 is enclosed within on interior positioning sleeve 3, be coated on the outside of interior positioning sleeve 3 and needle tubing 2, the horn-like afterbody of needle tubing 2 contacts with the inwall of the end of outside fix cover 4, play needle tubing 2 face that outwards positioning sleeve 4 contacts and carry out displacement, and outside fix cover 4, the centrage in interior positioning sleeve 3 and needle tubing 2 threes' hole overlaps, thereby needle tubing 2, outside fix cover 4, interior positioning sleeve 3 are all coated and link into an integrated entity by needle stand 1, and needle stand 1 is provided with the pilot hole communicating with needle tubing 2.
Claims (2)
1. a puncture needle, it comprises needle stand (1), needle tubing (2), it is characterized in that: also comprise metal positioning sleeve, the afterbody of needle tubing (2) is horn-like, metal positioning sleeve is divided into outside fix cover (4) and interior positioning sleeve (3), outside fix cover (4) and interior positioning sleeve (3) are cylinder, interior positioning sleeve (3) is provided with through hole and is horn-like in the end of through hole, and interior positioning sleeve (3) is coated on the horn-like place of afterbody of needle tubing (2) and both match, outside fix cover (4) is provided with shoulder hole, outside fix cover (4) is enclosed within on interior positioning sleeve (3), be coated on the outside of interior positioning sleeve (3) and needle tubing (2), the horn-like afterbody of needle tubing (2) contacts with the inwall of the end of outside fix cover (4), play needle tubing (2) face that outwards positioning sleeve (4) contacts and carry out displacement, and outside fix cover (4), the centrage in interior positioning sleeve (3) and needle tubing (2) three's hole overlaps, needle tubing (2), outside fix cover (4), interior positioning sleeve (3) all by needle stand (1) thus coated linking into an integrated entity, needle stand (1) is provided with the pilot hole communicating with needle tubing (2).
2. a kind of puncture needle according to claim 1, is characterized in that: described interior positioning sleeve (3) and outside fix cover (4) consist of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486532.1U CN203436624U (en) | 2013-08-09 | 2013-08-09 | Puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320486532.1U CN203436624U (en) | 2013-08-09 | 2013-08-09 | Puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203436624U true CN203436624U (en) | 2014-02-19 |
Family
ID=50087702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320486532.1U Expired - Lifetime CN203436624U (en) | 2013-08-09 | 2013-08-09 | Puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203436624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446641A (en) * | 2013-08-09 | 2013-12-18 | 浙江伏尔特医疗器械有限公司 | Puncture needle and method for manufacturing same |
-
2013
- 2013-08-09 CN CN201320486532.1U patent/CN203436624U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446641A (en) * | 2013-08-09 | 2013-12-18 | 浙江伏尔特医疗器械有限公司 | Puncture needle and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Jiaxing City, Zhejiang province 314500 Tongxiang Wutong Street No. 3618 Ring Road Patentee after: ZHEJIANG FERT MEDICAL DEVICE CO.,LTD. Address before: 314500 No. 35 Xinmin South Road, Tongxiang Economic Development Zone, Jiaxing, Zhejiang Patentee before: ZHEJIANG FERT MEDICAL APPARATUS CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Medical device composed of elastic valve type bottle plug and puncture needle Effective date of registration: 20190401 Granted publication date: 20140219 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: ZHEJIANG FERT MEDICAL DEVICE CO.,LTD. Registration number: 2019330000089 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20200927 Granted publication date: 20140219 Pledgee: Bank of Hangzhou Limited by Share Ltd. Tongxiang branch Pledgor: ZHEJIANG FERT MEDICAL DEVICE Co.,Ltd. Registration number: 2019330000089 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |
|
| CX01 | Expiry of patent term |