CN213156306U - Lumbar puncture needle - Google Patents
Lumbar puncture needle Download PDFInfo
- Publication number
- CN213156306U CN213156306U CN202021396887.8U CN202021396887U CN213156306U CN 213156306 U CN213156306 U CN 213156306U CN 202021396887 U CN202021396887 U CN 202021396887U CN 213156306 U CN213156306 U CN 213156306U
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- CN
- China
- Prior art keywords
- cavity
- needle
- section
- head
- suction
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- 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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- 238000009593 lumbar puncture Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 210000001175 cerebrospinal fluid Anatomy 0.000 claims description 9
- 208000012902 Nervous system disease Diseases 0.000 description 1
- 208000029033 Spinal Cord disease Diseases 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 208000015114 central nervous system disease Diseases 0.000 description 1
- 238000003759 clinical diagnosis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000027866 inflammatory disease Diseases 0.000 description 1
- 238000007917 intracranial administration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009605 pneumoencephalography Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
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Abstract
The utility model relates to a lumbar puncture needle, belonging to the technical field of medical instruments, comprising a needle head and a needle seat, wherein, a tube cavity is arranged in the needle head, the tail part of the needle head is fixed on the needle seat, a first cavity communicated with the tube cavity is arranged on the needle seat, a suction piece capable of changing the pressure in the first cavity is arranged in the first cavity, a second cavity communicated with the first cavity is also arranged on the needle seat, and the other end of the second cavity is provided with a valve; the needle base is also provided with a third cavity communicated with the first cavity, and the other end of the third cavity is detachably connected with a liquid collecting cup through a pipeline; a pipeline clamp is arranged on a pipeline connecting the liquid collecting cup and the third cavity. The utility model provides an awkward problem among the prior art.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, a lumbar puncture needle is related to.
Background
Lumbar puncture is a common clinical diagnosis and treatment operation, and can be used for diagnosing various inflammatory diseases of the central nervous system, vascular diseases, spinal cord diseases, intracranial space occupying diseases, unknown nervous system diseases, pneumoencephalography, spinal angiography and the like; it is also used for treating central nervous system diseases by discharging (reducing) and infusing medicine due to high cerebrospinal fluid pressure. The instrument for lumbar puncture is a lumbar puncture needle. At present, current pjncture needle is when using, and because of the pjncture needle is partd with the collection liquid cup that is used for collecting the cerebrospinal fluid, the user of service needs one hand to aspirate the cerebrospinal fluid, holds collection liquid cup on one hand, uses very inconveniently. In addition, the needle head of the puncture needle is not provided with a protective device, so that the puncture needle is easy to stab a user.
SUMMERY OF THE UTILITY MODEL
In view of this, the present application aims to provide a lumbar puncture needle to solve the problem of inconvenient operation in the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a lumbar puncture needle comprises a needle head and a needle seat, wherein a tube cavity is arranged in the needle head, the tail part of the needle head is fixed on the needle seat, a first cavity communicated with the tube cavity is arranged on the needle seat, a suction piece capable of changing the pressure in the first cavity is arranged in the first cavity, a second cavity communicated with the first cavity is also arranged on the needle seat, and a valve is arranged at the other end of the second cavity; the needle base is also provided with a third cavity communicated with the first cavity, and the other end of the third cavity is detachably connected with a liquid collecting cup through a pipeline; a pipeline clamp is arranged on a pipeline connecting the liquid collecting cup and the third cavity.
Optionally, a needle cap is sleeved on the needle, and the needle cap is detachably connected to the needle base.
Optionally, the needle head cap and the needle base are connected in a clamping or screwing manner.
Optionally, the valve further comprises a pressure gauge detachably connected with the valve.
Optionally, the first cavity comprises a drainage section, a diversion section and a guide section which are sequentially arranged along the flow direction of cerebrospinal fluid, and the inner diameter of the diversion section is larger than that of the drainage section; the suction piece comprises a suction head and a suction rod connected with the suction head, the outer diameter of the suction head is smaller than the inner diameter of the flow dividing section, and the suction rod can move along the axial direction of the guide section.
Optionally, the suction rod is threaded or slidingly connected with the guide section.
Optionally, a reducing section is arranged between the drainage section and the flow dividing section, and the outer diameter of the suction head of the suction piece is larger than the inner diameter of the drainage section.
The beneficial effects of the utility model reside in that: the liquid collecting cup is connected with the puncture needle through a pipeline, so that the problem of inconvenient operation in the prior art is solved; the needle head cap detachably connected with the needle stand is arranged on the needle stand, so that the risk that the head of the needle head stabs medical care personnel is reduced.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic structural view of the lumbar puncture needle of the present invention.
Reference numerals: needle cap 1, needle 2, lumen 3, first cavity 4, needle file 5, manometer 6, second cavity 7, suction piece 8, third cavity 9, pipeline clamp 10, collect liquid cup 11.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1, a lumbar puncture needle comprises a needle head 2 and a needle seat 5, wherein the needle head 2 is of a hollow structure, a tube cavity 3 is arranged in the needle head 2 and is used as a cerebrospinal fluid outflow channel, the head part of the needle head 2 is a puncture end, the tail part of the needle head 2 is fixed on the needle seat 5, a first cavity 4 communicated with the tube cavity 3 is arranged on the needle seat 5, a suction piece 8 capable of changing the pressure in the first cavity 4 is arranged in the first cavity 4, a second cavity 7 communicated with the first cavity 4 is also arranged on the needle seat 5, a valve is arranged at the other end of the second cavity 7, and a pressure gauge 6 is connected to the; the needle seat 5 is also provided with a third cavity 9 communicated with the first cavity 4, and the other end of the third cavity 9 is detachably connected with a liquid collecting cup 11 through a pipeline; the liquid collecting cup 11 is made of transparent materials, and scale marks are arranged on the liquid collecting cup 11; and a pipeline clamp 10 for controlling the on-off of the pipeline is arranged on the pipeline connecting the liquid collecting cup 11 and the third cavity 9.
The first cavity 4 comprises a drainage section, a flow distribution section and a guide section which are sequentially arranged along the flow direction of cerebrospinal fluid, and the inner diameter of the flow distribution section is larger than that of the drainage section; the suction piece 8 comprises a suction head and a suction rod connected with the suction head, the outer diameter of the suction head is smaller than the inner diameter of the diversion section, the suction rod can move along the axial direction of the guide section, and the suction rod is in threaded connection or sliding connection with the guide section; a sealing element is arranged at the joint of the flow dividing section and the guide section, and is sleeved on the suction rod; the other end of the suction rod is provided with a handheld part which can be disc-shaped, and the outer diameter of the handheld part is larger than that of the suction rod; the hand-held portion may also be of other shapes to facilitate hand-holding by an operator.
Preferably, a tapered reducing section is further arranged between the drainage section and the flow dividing section, and the outer diameter of the suction head of the suction piece 8 is larger than the inner diameter of the drainage section.
In order to avoid that the head of the needle head 2 stabs an operator when the needle head 2 is pulled out, the utility model is also provided with a needle head cap 1 for shielding the head of the needle head 2, the needle head cap 1 is in a tubular shape with an opening at one end, the needle head cap 1 is sleeved on the head of the needle head 2, and the connection mode of the opening end and the needle seat 5 is detachable connection; the open end of the needle cap 1 can be connected with the needle base 5 by clamping or screw connection.
The utility model discloses when using, need close earlier the pipeline and press from both sides 10, make the pipeline of connecting collection liquid cup 11 and third cavity 9 be in the state of opening circuit, survey the pressure of cerebrospinal fluid again, then open the pipeline and press from both sides 10, collect the cerebrospinal fluid.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (7)
1. A lumbar puncture needle is characterized in that: the needle comprises a needle head and a needle seat, wherein a tube cavity is arranged in the needle head, the tail part of the needle head is fixed on the needle seat, a first cavity communicated with the tube cavity is arranged on the needle seat, a suction piece capable of changing the pressure in the first cavity is arranged in the first cavity, a second cavity communicated with the first cavity is also arranged on the needle seat, and a valve is arranged at the other end of the second cavity; the needle base is also provided with a third cavity communicated with the first cavity, and the other end of the third cavity is detachably connected with a liquid collecting cup through a pipeline; a pipeline clamp is arranged on a pipeline connecting the liquid collecting cup and the third cavity.
2. A lumbar puncture needle according to claim 1, characterized in that: the needle is sleeved with a needle cap which is detachably connected with the needle base.
3. A lumbar puncture needle according to claim 2, characterized in that: the needle head cap and the needle base are connected in a clamping or screwing mode.
4. A lumbar puncture needle according to claim 1, characterized in that: the pressure gauge is detachably connected with the valve.
5. A lumbar puncture needle according to claim 1, characterized in that: the first cavity comprises a drainage section, a flow distribution section and a guide section which are sequentially arranged along the flow direction of cerebrospinal fluid, and the inner diameter of the flow distribution section is larger than that of the drainage section; the suction piece comprises a suction head and a suction rod connected with the suction head, the outer diameter of the suction head is smaller than the inner diameter of the flow dividing section, and the suction rod can move along the axial direction of the guide section.
6. A lumbar puncture needle according to claim 5, characterized in that: the suction rod is in threaded connection or sliding connection with the guide section.
7. A lumbar puncture needle according to claim 5, characterized in that: the drainage section with be equipped with the reducing section between the reposition of redundant personnel section, the suction head external diameter of suction piece is greater than the internal diameter of drainage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021396887.8U CN213156306U (en) | 2020-07-15 | 2020-07-15 | Lumbar puncture needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021396887.8U CN213156306U (en) | 2020-07-15 | 2020-07-15 | Lumbar puncture needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213156306U true CN213156306U (en) | 2021-05-11 |
Family
ID=75793445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021396887.8U Expired - Fee Related CN213156306U (en) | 2020-07-15 | 2020-07-15 | Lumbar puncture needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213156306U (en) |
-
2020
- 2020-07-15 CN CN202021396887.8U patent/CN213156306U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20210511 |