CN207654211U - Lumbar puncture needle with guid needle - Google Patents
Lumbar puncture needle with guid needle Download PDFInfo
- Publication number
- CN207654211U CN207654211U CN201720365432.1U CN201720365432U CN207654211U CN 207654211 U CN207654211 U CN 207654211U CN 201720365432 U CN201720365432 U CN 201720365432U CN 207654211 U CN207654211 U CN 207654211U
- Authority
- CN
- China
- Prior art keywords
- needle
- cavity
- spacing breach
- guid
- handle
- 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
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Abstract
The utility model discloses a kind of lumbar puncture needles with guid needle, including main needle tubing, needle handle, needle core and needle core base, main needle tubing tail end is connect with needle handle, needle handle inner cavity is stretched on needle core head, needle core base is installed at needle handle lumen port, it is socketed with guid needle outside main needle tubing, guid needle is installed on guiding needle stand, guiding needle stand one end connect with guid needle and guides needle stand content cavity and penetrated through with guid needle, it guides the needle stand other end and is equipped with cavity, cavity side walls are equipped with spacing breach, needle handle is equipped with connector sleeve, connector sleeve includes body, body outer wall is equipped with the flexible ear tilted towards outside, body is inserted into the cavity of guiding needle stand and forms location fit by flexible ear and spacing breach, cavity outer wall is correspondingly provided with the resetting-mechanism for driving flexible ear to inside contract abjection spacing breach being connected in spacing breach exterior side port.The utility model is equipped with guid needle, can play guiding function when carrying out lumbar puncture for obese patient, improve the puncture success rate of puncture needle.
Description
Technical field
The utility model belongs to the field of medical instrument technology, the especially lumbar puncture needle with guid needle.
Background technology
Currently, the lumbar puncture needle with guid needle used in spinal anesthesia operation is individually completed because its needle body is partially soft
Lumbar puncture acquires a certain degree of difficulty, and puncture needle outer diameter is slightly larger, it may occur however that cerebrospinal fluid exosmoses after lumbar puncture, causes complication.
The utility model is based on Chinese patent Authorization Notice No.：CN204744348U's《Lumbar puncture needle with guid needle》, do into
One step is improved, and structure includes main needle tubing, is penetrated through in main needle tubing, and main syringe rear end and needle handle are affixed, needle handle inner cavity and main needle tubing
It is interconnected, intracavitary is equipped with needle stamen in needle handle, and needle stamen includes needle core head and needle core base, and needle core head stretches into needle handle inner cavity, needle core base
Coordinate with needle handle lumen port；For some more more narrow patients of obese patient or intervertenral space, led using above-mentioned band
When the lumbar puncture needle of draw pin is punctured, more difficult, puncture needle, which is easily bent, causes operation failure.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of lumbar puncture needle with guid needle, the band
The lumbar puncture needle of guid needle is equipped with guid needle, and guiding function can be played when carrying out lumbar puncture for obese patient,
Improve the puncture success rate of puncture needle.
To achieve the goals above, the technical solution adopted in the utility model is：A kind of lumbar puncture needle with guid needle,
Including main needle tubing, needle handle, needle core and needle core base, main needle tubing tail end is connect with needle handle, and main needle tubing internal channel joins with needle handle inner cavity
Logical, needle handle inner cavity is stretched on needle core head, and needle core base is installed at needle handle lumen port, it is characterised in that：The main needle tubing housing
Be connected to guid needle, guid needle is installed on guiding needle stand, guiding needle stand one end connect and guide with guid needle needle stand content cavity and
Guid needle penetrates through, and the guiding needle stand other end is equipped with cavity, and cavity bottom surface is equipped with the through-hole passed through for main needle tubing, and cavity side walls are set
There are spacing breach, one end of needle handle towards main needle tubing that connector sleeve is installed, connector sleeve includes the body coordinated with needle handle, and set is external
Wall is equipped with the flexible ear tilted towards outside, and body endoporus passes through for main needle tubing, and body is inserted into the cavity of guiding needle stand simultaneously
Location fit is formed by flexible ear and spacing breach, cavity outer wall, which is correspondingly provided with, to be connected in spacing breach exterior side port
Flexible ear is driven to inside contract the resetting-mechanism of abjection spacing breach.
Further, the resetting-mechanism includes the ring slice being inserted into spacing breach exterior side port, and ring slice includes stretching
Enter the interconnecting piece in spacing breach, the operation portion except guiding needle stand, interconnecting piece is formed with spacing breach along spacing breach
Axial movement cooperation, and interconnecting piece is correspondingly provided with resetting spring.
Further, the spacing breach exterior side port and spacing breach interior side port are equipped with extends towards internal diameter direction
Inner flap is connected between the interconnecting piece and operation portion of ring slice by tightening changeover portion, is tightened changeover portion and is formed limit with inner flap
Position cooperation, the interconnecting piece other end are equipped with limit cavity corresponding with spacing breach interior side port.
Further, the interconnecting piece and tighten and form L-type step surface between changeover portion, at spacing breach exterior side port
Space between inner flap and L-type step surface constitutes spring cavity, and resetting spring, which is socketed on, to be tightened on changeover portion and be located at the spring
In chamber.
Using the above scheme, the puncture needle of the utility model includes main needle tubing and guid needle, is between guid needle and needle handle
Detachable connection, main needle tubing be inserted into guiding needle stand and by being pierced by guiding pin hole after, needle handle passes through connector sleeve and guiding needle stand
Socket cooperation, connector sleeve form positioning with the spacing breach in guiding needle stand cavity side walls by the flexible ear of its outer wall and match
It closes, when needing guid needle and main needle tubing being detached from, presses the ring slice at the spacing breach exterior side port of position and make ring slice
Flexible ear is ejected for limit cavity one end so that flexible ear returns in cavity main needle body extracting guid needle, this is worn
Pricker, which not only can be used alone, to coordinate guid needle to use, and adapt to wider using crowd.
The utility model is further described below in conjunction with the accompanying drawings.
Description of the drawings
Attached drawing 1 is the utility model specific embodiment structural schematic diagram；
Attached drawing 2 is A-A structure sectional views in the utility model specific embodiment attached drawing 1；
Main needle tubing 1, needle handle 2, needle core 3, needle core base 31, guid needle 4, guiding needle stand 41, cavity 411, spacing breach 412,
Inner flap 412a, connector sleeve 5, body 51, flexible ear 52, ring slice 6, interconnecting piece 61, limit cavity 611, tighten changeover portion
62, operation portion 63, spring cavity 64, resetting spring 7.
Specific implementation mode
Specific embodiment of the utility model is the lumbar puncture needle with guid needle 4 as shown in Figs. 1-2, including main needle tubing 1,
Needle handle 2, needle core 3 and needle core base 31,1 tail end of main needle tubing are connect with needle handle 2, and 1 internal channel of main needle tubing and 2 inner cavity unicom of needle handle,
2 inner cavity of needle handle is stretched on 3 head of needle core, and needle core base 31 is installed at 2 lumen port of needle handle, and guid needle 4 is socketed with outside main needle tubing 1,
Guid needle 4 is installed on guiding needle stand 41, and 41 one end of guiding needle stand connect with guid needle 4 and guides 41 content cavity of needle stand and guiding
Needle 4 penetrates through, and guiding 41 other end of needle stand is equipped with cavity 411, and 411 bottom surface of cavity is equipped with the through-hole passed through for main needle tubing 1, cavity
411 side walls are equipped with spacing breach 412, and one end of needle handle 2 towards main needle tubing 1 is equipped with connector sleeve 5, and connector sleeve 5 includes and needle handle 2
Affixed body 51,51 outer wall of body are equipped with the flexible ear 52 tilted towards outside, and 51 endoporus of body passes through for main needle tubing 1,
Body 51 is inserted into the cavity 411 of guiding needle stand 41 and forms location fit, cavity by flexible ear 52 and spacing breach 412
411 outer walls, which are correspondingly provided with to be connected in 412 exterior side port of spacing breach, drives flexible ear 52 to inside contract abjection spacing breach 412
Resetting-mechanism.
Resetting-mechanism includes the ring slice 6 being inserted into 412 exterior side port of spacing breach, and ring slice 6 includes stretching into limit to lack
Interconnecting piece 61 in mouth 412, the operation portion 63 except guiding needle stand 41, interconnecting piece 61 form edge with spacing breach 412 and limit
The position axial movement cooperation of notch 412, and interconnecting piece 61 is correspondingly provided with resetting spring 7.
412 exterior side port of spacing breach and 412 interior side port of spacing breach are equipped with the inner flap extended towards internal diameter direction
412a is connected between the interconnecting piece 61 and operation portion 63 of ring slice 6 by tightening changeover portion 62, tightens changeover portion 62 and inner flap
412a forms limit cooperation, and 61 other end of interconnecting piece is equipped with limit cavity 611 corresponding with 412 interior side port of spacing breach, scratches
Property ear 52 pass through spacing breach 412 after stretch into limit cavity 611 in.
L-type step surface, the inner flap at 412 exterior side port of spacing breach are formed between interconnecting piece 61 and deflation changeover portion 62
Space between 412a and L-type step surface constitutes spring cavity 64, and resetting spring 7, which is socketed on, to be tightened on changeover portion 62 and be located at the bullet
In spring chamber 64.
The utility model is not limited to above-mentioned specific implementation mode, and persons skilled in the art are according to the utility model public affairs
The content opened, may be used other a variety of specific implementation modes implement it is the utility model or it is every use the utility model
Design structure and thinking, do simple change or change, both fall within the scope of protection of the utility model.
Claims (4)
1. a kind of lumbar puncture needle with guid needle, including main needle tubing, needle handle, needle core and needle core base, main needle tubing tail end and needle handle
Connection, and needle handle inner cavity is stretched on main needle tubing internal channel and needle handle inner cavity unicom, needle core head, needle core base is installed on needle handle lumen end
At mouthful, it is characterised in that：Guid needle is socketed with outside the main needle tubing, guid needle is installed on guiding needle stand, guides needle stand one end
It is connect with guid needle and guides needle stand content cavity and penetrated through with guid needle, the guiding needle stand other end is equipped with cavity, and cavity bottom surface is equipped with
For the through-hole that main needle tubing passes through, cavity side walls are equipped with spacing breach, and one end of needle handle towards main needle tubing is equipped with connector sleeve, even
Female connector includes the body coordinated with needle handle, and body outer wall is equipped with the flexible ear tilted towards outside, and body endoporus is for main needle tubing
It passes through, body is inserted into the cavity of guiding needle stand and forms location fit, cavity outer wall phase by flexible ear and spacing breach
The resetting-mechanism for driving flexible ear to inside contract abjection spacing breach being connected in spacing breach exterior side port should be equipped with.
2. the lumbar puncture needle according to claim 1 with guid needle, it is characterised in that：The resetting-mechanism includes being inserted into
Ring slice in spacing breach exterior side port, ring slice include stretching into the interconnecting piece in spacing breach, being located at except guiding needle stand
Operation portion, interconnecting piece and spacing breach, which form to move axially along spacing breach, to be coordinated, and interconnecting piece is correspondingly provided with resetting spring.
3. the lumbar puncture needle according to claim 2 with guid needle, it is characterised in that：The spacing breach exterior side port
It is equipped with the inner flap extended towards internal diameter direction with spacing breach interior side port, is passed through between the interconnecting piece and operation portion of ring slice
Tighten changeover portion linking, tightens changeover portion and inner flap forms limit cooperation, the interconnecting piece other end is equipped with and spacing breach inside
The corresponding limit cavity in port.
4. the lumbar puncture needle according to claim 3 with guid needle, it is characterised in that：The interconnecting piece and deflation transition
L-type step surface is formed between section, the space between inner flap and L-type step surface at spacing breach exterior side port constitutes spring
Chamber, resetting spring, which is socketed on, to be tightened on changeover portion and in the spring cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365432.1U CN207654211U (en) | 2017-04-07 | 2017-04-07 | Lumbar puncture needle with guid needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365432.1U CN207654211U (en) | 2017-04-07 | 2017-04-07 | Lumbar puncture needle with guid needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207654211U true CN207654211U (en) | 2018-07-27 |
Family
ID=62935247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365432.1U Expired - Fee Related CN207654211U (en) | 2017-04-07 | 2017-04-07 | Lumbar puncture needle with guid needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207654211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124736A (en) * | 2018-08-14 | 2019-01-04 | 刘斌 | Lumbar puncture needle assemblies with positioning and coloring function |
-
2017
- 2017-04-07 CN CN201720365432.1U patent/CN207654211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124736A (en) * | 2018-08-14 | 2019-01-04 | 刘斌 | Lumbar puncture needle assemblies with positioning and coloring function |
| CN109124736B (en) * | 2018-08-14 | 2023-08-15 | 刘斌 | Lumbar puncture needle assembly with positioning and color development functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20190407 |