CN214805238U

CN214805238U - Lumbar puncture device

Info

Publication number: CN214805238U
Application number: CN202121039910.2U
Authority: CN
Inventors: 何柳
Original assignee: No 3 Peoples Hospital of Chengdu
Current assignee: No 3 Peoples Hospital of Chengdu
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-11-23
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a lumbar puncture device, which comprises a puncture needle, a joint part arranged at the end part of the puncture needle, a drain pipe arranged on the joint part and communicated with the puncture needle, and a sample pipe connected with the outlet of the drain pipe; the joint part comprises a pipe body with a liquid guide cavity inside, a pressure sensor arranged in the pipe body and a valve plate arranged in the pipe body, a liquid discharge pipe is communicated with an outlet of the liquid guide cavity, a measuring needle of the pressure sensor extends into the liquid guide cavity, a control chip and a display screen are arranged on the outer wall of the pipe body, and the control chip is respectively in communication connection with the display screen and the pressure sensor; its reliable structure, performance is good, through pressure sensor and control chip's communication connection, the accurate detection of the intracranial pressure of effectual realization to make the art person can observe the pressure value in real time through the display screen, reduce and puncture repeatedly, improve the puncture success rate, improve the operation effect, reduced operating procedure, and avoided spilling of cerebrospinal fluid, the pollution abatement risk.

Description

Lumbar puncture device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to lumbar puncture device.

Background

The lumbar puncture is a diagnosis and treatment operation which is commonly used in clinic and can be used for diagnosing various inflammatory diseases of the central nervous system, vascular diseases, spinal cord diseases, suspected intracranial space occupying diseases, nervous system diseases which are not diagnosed, 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. At present, the disposable aseptic lumbar puncture bag is clinically used. The body position of the patient: order the patient to bend the hip and knee, hold the knee with both hands, lie on the left side, and make the lumbar kyphosis to widen the intervertebral space. The operator can carry out normal local disinfection and spreading of the towel for general local infiltration anesthesia. The lumbar puncture needle is inserted into the puncture site, when the puncture feels that the resistance is suddenly reduced, the needle core is pulled out, and the hydrocephalus flows out by rotating the needle tail, so that the puncture is successful. Then, a piezometer tube is used for measuring the initial pressure of cerebrospinal fluid, a proper amount of hydrocephalus is discharged according to different puncture purposes and specific conditions, then the piezometer tube is used for measuring the final pressure of cerebrospinal fluid again, after the completion, a needle core is inserted, a puncture needle is extracted, the puncture needle is fixed by a disinfection gauze block, and a patient is ordered to lie on the pillow for 4 to 6 hours.

The lumbar puncture surgery of clinical application at present is that the operator goes on according to the lumbar puncture surgery step, is a blind puncture, because the difference of patient lumbar vertebrae clearance, lumbar vertebrae local anatomy structure, position put, patient's degree of adaptability etc. puncture has certain failure rate, sometimes can lead to puncturing repeatedly or puncture the failure. After the puncture is succeeded to the waist, the use is that the pjncture needle pressure measurement is connected to the piezometric tube, need take out the interior needle of lumbar puncture needle in operation process, then connect the piezometric tube immediately in step, the operator needs one hand to pull out interior needle, the other hand is got the piezometric tube and is connect on the needle mouth is worn to the waist, needle mouth is worn to the waist and the anastomotic stoma of piezometric tube is very little again, this in-process can lead to not connecting, the cerebrospinal fluid leaks outward, inconvenient operation, if the intracranial pressure of patient increases, and the cerebrospinal fluid is discharged fast, thereby appear intracranial pressure and descend rapidly, the patient appears harmful events such as cerebral hernia formation and appears endangering the life. And because the pressure measuring tube is made of materials, cerebrospinal fluid is always remained in the tube to form a water column, so that the end pressure is measured inaccurately, or the cerebrospinal fluid needs to be thrown away, and the environmental pollution is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lumbar puncture device.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a lumbar puncture device comprises a puncture needle, a joint part arranged at the end part of the puncture needle, a liquid discharge pipe arranged on the joint part and communicated with the puncture needle, and a specimen pipe connected to the outlet of the liquid discharge pipe;

the joint part comprises a pipe body with a liquid guide cavity inside, a pressure sensor arranged in the pipe body and a valve plate arranged in the pipe body, a liquid discharge pipe is communicated with an outlet of the liquid guide cavity, a measuring needle of the pressure sensor extends into the liquid guide cavity, the outer wall of the pipe body is provided with a control chip and a display screen, and the control chip is in communication connection with the display screen and the pressure sensor respectively.

Furthermore, the liquid discharge pipe comprises a first connecting pipe and a second connecting pipe communicated with the first connecting pipe, the first connecting pipe is communicated with the liquid guide cavity through a connector, and the end part, far away from the second connecting pipe, of the first connecting pipe extends into the sample pipe.

Further, a buzzer is arranged on the tube body and is in communication connection with the control chip.

Furthermore, bayonets for opening and closing the connecting pipes are arranged on the first connecting pipe and the second connecting pipe.

Further, a buffer area is arranged on the first connecting pipe.

Further, the end of the first connecting pipe is in a conical tip structure.

The utility model discloses following beneficial effect has: the utility model provides a lumbar puncture device, its structure is reliable, and performance is good, through pressure sensor and control chip's communication connection, the effectual accurate detection of intracranial pressure that realizes to make art person can observe the pressure value in real time through the display screen, reduce and puncture repeatedly, improve the puncture success rate, it is painful to reduce the patient, improve the operation effect, avoid the pressure measurement technique of current pressure-measuring pipe simultaneously, the operating procedure has been reduced, and avoided spilling of cerebrospinal fluid, the pollution abatement risk.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the connection between the joint and the puncture needle;

FIG. 3 is a schematic view of the structure of the middle drainage tube of the present invention;

the reference numerals shown in fig. 1 to 3 are respectively expressed as: 1-puncture needle, 2-joint part, 3-drain pipe, 4-sample pipe, 20-drainage cavity, 21-pipe body, 22-pressure sensor, 23-valve plate, 24-control chip, 25-display screen, 30-first connecting pipe, 31-second connecting pipe, 32-bayonet and 33-buffer zone.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 2, a lumbar puncture device includes a puncture needle 1, a joint 2 provided at an end of the puncture needle 1, a drainage tube 3 provided at the joint 2 and communicating with the puncture needle 1, and a sample tube 4 connected to an outlet of the drainage tube 3. The puncture needle 1 is used for puncturing the operation position, the joint part 2 is of a sandwich structure, and the liquid discharge pipe 3 is used for discharging the punctured effusion into the sample pipe 4.

Joint portion 2 includes that inside has drain chamber 20's body 21, pressure sensor 22 and the valve block 23 of setting in body 21, and fluid-discharge tube 3 is linked together with the export in drain chamber 20, and pressure sensor 22's gauge needle stretches into to drain chamber 20 in, and the outer wall of body 21 is provided with control chip 24 and display screen 25, and control chip 24 respectively with display screen 25 and pressure sensor 22 communication connection. Control chip 24 adopts the model to be STM 32's singlechip, during the use, monitors pressure through pressure sensor 22 to transmit the pressure model to control chip 24, carry out data processing through control chip 24 to the model, turn into digital signal and show on display screen 25 with pressure signal, thereby be convenient for the art person observes the pressure value this moment, reaches pressure monitoring's effect. This valve block 23 is used for controlling the break-make of joint portion 2, and this valve block 23 conventionality is in the closed condition, and the operator opens it can when needing, the simple operation.

As shown in fig. 3, the liquid discharge pipe 3 includes a first connection pipe 30 and a second connection pipe 31 connected to the first connection pipe 30, the first connection pipe 30 is connected to the liquid guide chamber 20 through a joint, and an end of the first connection pipe 30, which is far from the second connection pipe 31, extends into the sample pipe 4. The end of the first connection pipe 30 has a tapered tip structure. Both the first connection pipe 30 and the second connection pipe 31 are provided with bayonets 32 for opening and closing the connection pipes. The bayonet 32 is provided to facilitate the opening and closing operation of the first connection tube 30 and the second connection tube 31 by the operator. The first connection pipe 30 is provided with a buffer 33. The buffer 33 is provided to allow the operator to control the dropping rate of cerebrospinal fluid by pressing the buffer 33 with hand.

The tube body 21 is provided with a buzzer, and the buzzer is in communication connection with the control chip 24. A pressure value limit is arranged in the control chip 24, and when the pressure exceeds or is lower than the pressure value limit, the buzzer gives an alarm, so that an operator can perform corresponding actions in time.

When the puncture needle is used, an operator holds the puncture needle 1 to perform conventional puncture, and the display screen 25 displays a pressure value according to the pressure monitored by the observation pressure sensor 22, so that whether the tip of the puncture needle 1 reaches the subarachnoid space is judged in an auxiliary manner. At this time, the second connection tube 31 is in a closed state, after the puncture is successful, it is seen that the cerebrospinal fluid flows into the first connection tube 30, the first connection tube 30 reads a pressure value and performs initial pressure, after the puncture is completed, the first connection tube 30 is inserted into the cerebrospinal fluid collection tube, a certain positive pressure is contained in the cerebrospinal fluid collection tube, the flow rate of the cerebrospinal fluid is controlled, and the outflow is prevented from being too fast. If the cerebrospinal fluid pressure is too high, the dripping speed of the cerebrospinal fluid in the cerebrospinal fluid collecting tube can be observed to be too high, and the speed can be manually controlled by pressing the buffer area 33 on the first connecting tube 30 by hand; if the pressure of the cerebrospinal fluid is too low, the valve plate can be slowly opened, the cerebrospinal fluid collecting pipe is taken down, and the pipe cap is opened to collect the cerebrospinal fluid in a traditional mode. Then the bayonet 32 of the second connecting tube 31 is opened, a small amount of cerebrospinal fluid is collected and dripped into the cerebrospinal fluid detection system, and the conventional color, transparency, Pan test, red blood cell number, white blood cell number, classification and biochemical sugar, potassium, sodium, chlorine and cerebrospinal fluid protein of the cerebrospinal fluid are displayed. When an intrathecal injection is required, a needle cannula is used to withdraw the drug, the second connecting tube 31 is opened, and the inner subarachnoid space is injected through the second connecting tube 31. And after the collection or the intrathecal injection is finished, closing the connecting pipe or the valve disc, and reading the pressure value and the final pressure. After the puncture is finished, the lumbar puncture needle is pulled out and disinfected.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A lumbar puncture device is characterized by comprising a puncture needle (1), a joint part (2) arranged at the end part of the puncture needle (1), a liquid discharge pipe (3) arranged on the joint part (2) and communicated with the puncture needle (1), and a sample pipe (4) connected to the outlet of the liquid discharge pipe (3);

joint portion (2) are in including inside body (21) that has drain chamber (20), setting pressure sensor (22) in body (21) and setting valve block (23) in body (21), fluid-discharge tube (3) with the export of drain chamber (20) is linked together, the probe of pressure sensor (22) stretches into to drain chamber (20) in, the outer wall of body (21) is provided with control chip (24) and display screen (25), just control chip (24) respectively with display screen (25) and pressure sensor (22) communication connection.

2. The lumbar puncture device according to claim 1, wherein the drainage tube (3) comprises a first connection tube (30) and a second connection tube (31) communicated with the first connection tube (30), the first connection tube (30) is communicated with the drainage chamber (20) through an interface, and the end of the first connection tube (30) far from the second connection tube (31) extends into the sample tube (4).

3. The lumbar puncture device according to claim 1, wherein a buzzer is arranged on the tube body (21), and the buzzer is in communication connection with the control chip (24).

4. The lumbar puncture device according to claim 2, wherein a bayonet (32) is provided on each of the first connection tube (30) and the second connection tube (31), and the opening and closing of the first connection tube (30) and the second connection tube (31) are controlled by the bayonet (32).

5. The lumbar puncture device according to claim 4, characterized in that a buffer zone (33) is provided on the first connection tube (30).

6. The lumbar puncture device according to claim 4 or 5, characterized in that the end of the first connection tube (30) is of a conical tip structure.