CN216985087U - Lumbar puncture needle - Google Patents
Lumbar puncture needle Download PDFInfo
- Publication number
- CN216985087U CN216985087U CN202220192756.0U CN202220192756U CN216985087U CN 216985087 U CN216985087 U CN 216985087U CN 202220192756 U CN202220192756 U CN 202220192756U CN 216985087 U CN216985087 U CN 216985087U
- Authority
- CN
- China
- Prior art keywords
- transparent
- stationary ring
- wall
- backshank
- lumbar puncture
- 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
Links
- 238000009593 lumbar puncture Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 230000002441 reversible effect Effects 0.000 claims description 26
- 239000010410 layer Substances 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 5
- 238000002845 discoloration Methods 0.000 claims 1
- 210000001175 cerebrospinal fluid Anatomy 0.000 abstract description 16
- 239000003589 local anesthetic agent Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000000816 ethylene group Chemical class [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002219 fluoranthenes Chemical class 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910001511 metal iodide Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
Images
Abstract
The utility model relates to the technical field of puncture needles, in particular to a lumbar puncture needle which comprises a transparent needle tail, wherein one end of the transparent needle tail is sleeved with a needle head, and the inner wall of the other end of the transparent needle tail is provided with a plurality of grooves; be provided with the tight mechanism of cover on the transparent backshank, the tight mechanism of cover includes first stationary ring, second stationary ring, rotating ring, elastic component, first stationary ring fixed connection be in the outer wall of transparent backshank one end, second stationary ring fixed connection be in the outer wall of the transparent backshank other end, the rotating ring cover is in the outer wall of transparent backshank and corresponding first stationary ring with between the second stationary ring, the elastic component is contradicted first stationary ring with between the rotating ring. According to the utility model, cerebrospinal fluid can flow out conveniently through the arranged groove, and the mounting and dismounting of the cerebrospinal fluid and the injector or the piezometer tube are facilitated through the arranged tightening mechanism.
Description
Technical Field
The utility model relates to the technical field of puncture needles, in particular to a lumbar puncture needle.
Background
The puncture needle mainly comprises a needle head and a needle tail, the puncture needle is clinically needed to be used for lumbar puncture, then whether lumbar puncture is successful or not is judged through cerebrospinal fluid flowing back from the puncture needle, the needle tail is usually manufactured by adopting a transparent material for conveniently observing the cerebrospinal fluid, a round hole is formed in the needle tail, the cerebrospinal fluid can flow out of the round hole, and when the cerebrospinal fluid is in a condition with low pressure, the cerebrospinal fluid cannot easily flow out of the round hole, so that the judgment of clinical personnel is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a lumbar puncture needle to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a lumbar puncture needle comprises a transparent needle tail, wherein one end of the transparent needle tail is sleeved with a needle head, and the inner wall of the other end of the transparent needle tail is provided with a plurality of grooves; and a tightening mechanism is arranged on the transparent needle tail.
Optionally, the tight mechanism of cover includes first stationary ring, second stationary ring, rotating ring, elastic component, first stationary ring fixed connection be in the outer wall of transparent backshank one end, second stationary ring fixed connection be in the outer wall of transparent backshank other end, the rotating ring cover is in the outer wall of transparent backshank and corresponding first stationary ring with between the second stationary ring, the elastic component is contradicted first stationary ring with between the rotating ring.
Optionally, the elastic member is a spring.
Optionally, the grooves are arranged in an annular array or in a disordered manner in the inner wall at the other end of the transparent needle tail.
Optionally, the inner wall of the transparent needle tail is covered with a reversible thermochromic layer.
Optionally, the reversible thermochromic layer is made of a thermochromic material.
Optionally, the color change range of the reversible temperature-sensitive color change layer is 20-40 ℃.
Optionally, a transparent protective layer covers the reversible thermochromic layer.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the utility model, the cerebrospinal fluid can flow out conveniently through the arranged groove.
2. According to the utility model, the tight sleeving mechanism is convenient to assemble and disassemble with the injector or the piezometer tube.
3. According to the utility model, the reversible temperature-sensitive color-changing layer is arranged, so that cerebrospinal fluid and local anesthetic can be conveniently distinguished.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic structural view taken along section B-B in FIG. 2;
fig. 4 is a schematic three-dimensional structure of the groove of the present invention.
In the figure: 1. a transparent needle tail; 2. a needle head; 3. a groove; 4. a tightening mechanism; 5. a first stationary ring; 6. a second stationary ring; 7. a moving ring; 8. an elastic member; 9. a reversible thermochromic layer; 10. and a transparent protective layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1 to 4, the utility model provides a lumbar puncture needle, which comprises a transparent needle tail 1, wherein one end of the transparent needle tail 1 is sleeved with a needle head 2, the inner wall of the other end of the transparent needle tail 1 is provided with a plurality of grooves 3, and through the design of the grooves 3, particularly when the pressure of cerebrospinal fluid is low, the cerebrospinal fluid can flow out along the groove walls of the grooves 3 conveniently, so that the judgment of clinical personnel is facilitated.
The length of the groove 3 approximately occupies two thirds of the inner wall of the other end of the transparent needle tail 1, the remaining approximately one third is convenient for being sleeved with an injector or a pressure measuring pipe, the proportion is not fixed, and the length can be set according to the actual length of the head of the injector.
The number of the grooves 3 is plural, for example, 2, 3 or more, and the grooves 3 are arranged in a circular array in the inner wall of the other end of the transparent needle tail 1, that is, an ordered arrangement, or may be arranged in a non-circular array, that is, an unordered arrangement.
The transparent needle tail 1 is provided with a tight sleeving mechanism 4, specifically, the tight sleeving mechanism 4 comprises a first fixed ring 5, a second fixed ring 6, a movable ring 7 and an elastic part 8, the first fixed ring 5 is fixedly connected with the outer wall of one end of the transparent needle tail 1, the second fixed ring 6 is fixedly connected with the outer wall of the other end of the transparent needle tail 1, the movable ring 7 is sleeved on the outer wall of the transparent needle tail 1 and corresponds to the space between the first fixed ring 5 and the second fixed ring 6, and the elastic part 8 is abutted against the space between the first fixed ring 5 and the movable ring 7; the rotating ring 7 is under the elastic action of elastic component 8, contradict with second fixed ring 6, and because the existence that 1 inside round hole of transparent backshank was fluted 3, make the inner wall of the 1 other end of transparent backshank have the trend of drawing close to toward inside extrusion, make inside round hole dwindle slightly, thereby be convenient for with the head cover tight cover jail of syringe or pressure-measuring pipe, prevent to break away from, when taking syringe or pressure-measuring pipe apart with transparent backshank 1, promote rotating ring 7 and remove toward the direction that is close to first fixed ring 5, extrusion elastic component 8, make the inside round hole of transparent backshank 1 expand slightly, thereby be convenient for and the head of syringe or pressure-measuring pipe break away from, through this design, be convenient for transparent backshank 1 and syringe or pressure-measuring pipe dismouting.
The elastic member 8 is a spring, and the spring is arranged in two ways: one is that the whole body is sleeved on the outer wall of the transparent needle tail 1 and corresponds to the space between the first fixed ring 5 and the movable ring 7, the assembly mode of the movable ring 7 and the transparent needle tail 1 can be integrated during injection molding, the assembly mode of the spring and the transparent needle tail 1 can be interference fit, after the spring is sleeved on the spring, the two ends of the spring are bent, and the spring can be limited and abutted between the first fixed ring 5 and the movable ring 7; the other type is that corresponding grooves are formed in the first fixed ring 5 and the movable ring 7, two ends of the spring are abutted to the grooves, the spring is sleeved on the outer wall of the transparent needle tail 1 correspondingly to the outer edge of the transparent needle tail 1 instead of being integrally sleeved, and the number of the springs can be multiple.
The inner wall of the transparent needle tail 1 is covered with a reversible temperature-sensitive color-changing layer 9, the reversible temperature-sensitive color-changing layer 9 can be made of a temperature-sensitive color-changing material, and the temperature-sensitive color-changing material, also called as a thermochromic material, has the property that the absorption spectrum changes when being heated or cooled. The reversible thermochromic materials include various types, such as metal iodides, double salts, and transition metal compounds in inorganic reversible thermochromic materials, spiropyrans, fluoranthenes, triarylmethanes, substituted ethylenes, and organic complexes in organic reversible thermochromic materials, and liquid crystal reversible thermochromic materials, and the reversible thermochromic materials are selected from materials that are not toxic to human bodies.
The color change range of the reversible temperature-sensitive color changing layer 9 is 20-40 ℃, when liquid flows back to the transparent needle tail 1, the color changes when the liquid flows back to the reversible temperature-sensitive color changing layer 9, the temperature of cerebrospinal fluid and local anesthetic is remarkably different, the cerebrospinal fluid is closer to the body temperature of 36 ℃, the local anesthetic is close to the room temperature of about 22 ℃ in an operation, wherein the preferable color change temperature is 30 ℃, the reversible temperature-sensitive color changing layer 9 is colorless when the temperature is less than 30 ℃, the temperature is greater than 30 ℃, the color changes when the temperature is greater than 30 ℃, and the color changes of the reversible temperature-sensitive color changing layer 9 can be realized only by enabling a doctor to observe the color change process without limiting specific colors. It can be understood that, in the process of the change of the special color, the observation of doctors is facilitated, for example, the color of the reversible temperature-sensitive color-changing layer 9 changes from red to colorless or from colorless to red, which can provide a more favorable observation basis for doctors to observe the temperature change in the operation correspondingly, so that the doctors can judge through the reversible temperature-sensitive color-changing layer 9 whether the liquid flowing through the transparent needle tail 1 is cerebrospinal fluid or local anesthetic drug, and in addition, when the cerebrospinal fluid flows out a little, the outflow condition of the cerebrospinal fluid can be well judged through color change.
The transparent needle tail 1 is made of transparent materials, the reversible temperature-sensitive discoloring layer 9 is covered with the transparent protective layer 10, the reversible temperature-sensitive discoloring layer 9 is protected, and meanwhile, the observation of color change of the reversible temperature-sensitive discoloring layer 9 cannot be influenced. The transparent protective layer 10 may be made of non-toxic silica gel.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a lumbar puncture needle, includes transparent backshank (1), syringe needle (2), its characterized in that have been cup jointed to the one end of transparent backshank (1): a plurality of grooves (3) are formed in the inner wall of the other end of the transparent needle tail (1); and a tightening mechanism (4) is arranged on the transparent needle tail (1).
2. The lumbar puncture needle according to claim 1, characterized in that: tight mechanism (4) of cover includes first stationary ring (5), second stationary ring (6), rotating ring (7), elastic component (8), first stationary ring (5) fixed connection be in the outer wall of transparent backshank (1) one end, second stationary ring (6) fixed connection be in the outer wall of transparent backshank (1) other end, rotating ring (7) cover is in the outer wall of transparent backshank (1) and correspond first stationary ring (5) with between second stationary ring (6), elastic component (8) are contradicted first stationary ring (5) with between rotating ring (7).
3. A lumbar puncture needle according to claim 2, characterized in that: the elastic piece (8) is a spring.
4. The lumbar puncture needle according to claim 1, characterized in that: the grooves (3) are arranged in an annular array or a non-annular array in the inner wall of the other end of the transparent needle tail (1).
5. A lumbar puncture needle according to claim 1, characterized in that: the inner wall of the transparent needle tail (1) is covered with a reversible temperature-sensitive color-changing layer (9).
6. A lumbar puncture needle according to claim 5, characterized in that: the reversible temperature-sensitive color-changing layer (9) is made of a temperature-sensitive color-changing material.
7. A lumbar puncture needle according to claim 5 or 6, characterized in that: the color change range of the reversible temperature-sensitive color change layer (9) is 20-40 ℃.
8. A lumbar puncture needle according to claim 7, characterized in that: the reversible temperature-sensitive discoloration layer (9) is covered with a transparent protective layer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192756.0U CN216985087U (en) | 2022-01-24 | 2022-01-24 | Lumbar puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220192756.0U CN216985087U (en) | 2022-01-24 | 2022-01-24 | Lumbar puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216985087U true CN216985087U (en) | 2022-07-19 |
Family
ID=82391193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220192756.0U Expired - Fee Related CN216985087U (en) | 2022-01-24 | 2022-01-24 | Lumbar puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216985087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024047375A1 (en) * | 2022-08-29 | 2024-03-07 | Velez Rojas Armando De Jesus | Spinal needle with cerebrospinal fluid sensor |
-
2022
- 2022-01-24 CN CN202220192756.0U patent/CN216985087U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024047375A1 (en) * | 2022-08-29 | 2024-03-07 | Velez Rojas Armando De Jesus | Spinal needle with cerebrospinal fluid sensor |
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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: 20220719 |