CN213216977U

CN213216977U - Be used for lumbar vertebrae puncture back cerebrospinal fluid pressure measurement device

Info

Publication number: CN213216977U
Application number: CN202021889707.XU
Authority: CN
Inventors: 王杰; 李金容; 李陈渝; 唐军
Original assignee: Chongqing Traditional Chinese Medicine Hospital
Current assignee: Chongqing Traditional Chinese Medicine Hospital
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-18
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a be used for lumbar puncture back cerebrospinal fluid pressure measurement device relates to medical instrument technical field, has the cerebrospinal fluid to spill hourglass, extravagant and the inconvenient problem of operation when having solved current pressure-measuring pipe and measuring cerebrospinal fluid pressure force, and its technical scheme main points are: the digital meter comprises a digital meter head, an extension body and a pressure sensor, wherein a connecting end is arranged on the side surface of the digital meter head; one end of the extending body is fixedly connected with the end part of the connecting end, and the other end of the extending body is fixedly connected with the pressure sensor; the pressure sensor is electrically connected with the digital meter head. After the pjncture needle is extracted, will extend the body and pass through pressure sensor measurement cerebrospinal fluid pressure value behind the puncture to through digital table head visual display, take out the extension body after the reading is accomplished, and insert the needle core, whole process convenient operation, flexibility reduce the cerebrospinal fluid and spill hourglass, waste, thereby reduce because of the cerebrospinal fluid flow out too much lead to the waist to pass the condition emergence of complication or even cerebral hernia formation.

Description

Be used for lumbar vertebrae puncture back cerebrospinal fluid pressure measurement device

Technical Field

The utility model relates to the technical field of medical equipment, more specifically say, it relates to a be used for lumbar puncture back cerebrospinal fluid pressure measurement device.

Background

The present lumbar puncture is a very general and important examination means of department of neurology, through chemical examination and censorship of cerebrospinal fluid, to clinical diagnosis intracranial infection, tumour, judges whether have subarachnoid hemorrhage etc. and has important meaning, and lumbar puncture general process is as follows: the puncture point is preferably 4-5 lumbar or 5-sacral 1 intervertebral space, the operator fixes the skin of the puncture point with the left hand, the right hand holds the puncture needle to slowly puncture in the direction perpendicular to the back, the depth of the needle insertion for adults is about 4-6cm, the depth of children is 2-4cm, and when the needle head passes through ligaments and dura mater, the user can feel that the resistance suddenly disappears and the user feels a falling feeling. At the moment, the needle core can be slowly drawn out (to prevent cerebrospinal fluid from rapidly flowing out to cause cerebral hernia), so that the cerebrospinal fluid can flow out, if no cerebrospinal fluid flows out, the puncture needle can be twisted or slightly adjusted in depth until the cerebrospinal fluid flows out, and a pressure measuring tube is connected to measure the pressure before the fluid is discharged.

At present, clinically, the piezometric tube is two, and every piezometric tube represents cerebrospinal fluid pressure and is 200mmH2O, easily appears the cerebrospinal fluid and spills hourglass connecting the piezometric tube in-process, and the piezometric tube is from taking partial cerebrospinal fluid, and this partial cerebrospinal fluid is extravagant many, and it is extremely inconvenient if some doctors with the operation of recovering to the sample bottle in the cerebrospinal fluid in the piezometric tube, and the cerebrospinal fluid seepage too much can lead to low cranium pressure head pain, can appear cerebral hernia complication when serious.

Therefore, how to research and design a lumbar puncture posterior cerebrospinal fluid pressure measuring device which is convenient and flexible to operate is a problem which is urgently needed to be solved at present.

SUMMERY OF THE UTILITY MODEL

Have cerebrospinal fluid to spill leak, extravagant and the inconvenient problem of operation when solving current piezometric tube and measuring cerebrospinal fluid pressure, the utility model aims at providing a be used for lumbar puncture back cerebrospinal fluid pressure measuring device.

The above technical purpose of the present invention can be achieved by the following technical solutions: a cerebrospinal fluid pressure measuring device used after lumbar puncture comprises a digital gauge head, an extension body and a pressure sensor, wherein a connecting end is arranged on the side surface of the digital gauge head; one end of the extending body is fixedly connected with the end part of the connecting end, and the other end of the extending body is fixedly connected with the pressure sensor; the pressure sensor is electrically connected with the digital meter head.

Through adopting above-mentioned technical scheme, the pjncture needle is extracted the back, will extend the body and pass through pressure sensor measurement cerebrospinal fluid pressure value behind the puncture to through digital gauge outfit visual display, take out the extension body after the reading is accomplished, and insert the needle core, whole process convenient operation, flexibility reduce cerebrospinal fluid and spill hourglass, waste, thereby reduce because of the too much circumstances that leads to the waist to pass complication or even cerebral hernia formation of cerebrospinal fluid outflow and take place.

The utility model discloses further set up to: the extension body is a medical polymer soft body.

By adopting the technical scheme, when the extension body passes through the needle hole, the extension body can follow the trend of the needle hole and flexibly change direction, so that the extension body is simple and convenient to use and operate, and the situation that the extension body extrudes and damages internal tissues in the insertion and taking-out processes is reduced.

The utility model discloses further set up to: the extension body is a conical body with the diameter gradually reduced along the direction from the connecting end to the pressure sensor.

By adopting the technical scheme, when the extension body is inserted, the extension body can gradually expand the internal tissues forming the needle hole, and has the function of insertion guiding; at the same time, the amount of cerebrospinal fluid adhering to the outer wall of the extension is reduced when the extension is removed.

The utility model discloses further set up to: the extension side is equipped with the level sensor who is close to pressure sensor, and digital gauge outfit surface is equipped with the pilot lamp, pilot lamp and level sensor electric connection.

Through adopting above-mentioned technical scheme, level sensor detects whether pressure sensor stretches into in the cerebrospinal fluid, and the pilot lamp lights after responding to the detected signal of level sensor output, shows through the pilot lamp and whether can directly perceivedly demonstrate pressure sensor and be in correct detection position, and the condition that reduces measuring error takes place.

The utility model discloses further set up to: the distance between the liquid level sensor and the pressure sensor along the axial direction of the extension body is 1-2 cm.

Through adopting above-mentioned technical scheme, can enough accurate detection pressure sensor's position, can avoid the condition that the extension body excessively stretched into to take place again.

The utility model discloses further set up to: and a trigger button for controlling the opening and closing of the pressure sensor and the liquid level sensor is arranged on the side surface of the digital meter head.

Through adopting above-mentioned technical scheme, trigger button switches on pressure sensor, level sensor and power after the start, can reduce the energy consumption under the pressure measurement device non-operating condition.

The utility model discloses further set up to: the connecting end is in threaded fit with a protective pipe, and the extension body is arranged in the protective pipe.

Through adopting above-mentioned technical scheme, can protect extension body and components and parts after protective tube and the connection end screw-thread fit.

To sum up, the utility model discloses following beneficial effect has: the extension body penetrates through the puncture hole, the pressure value of the cerebrospinal fluid is measured through the pressure sensor, the digital meter head is used for visually displaying, the extension body is taken out after the reading is finished, and the needle core is inserted, so that the operation of the whole process is convenient and flexible, and the leakage and the waste of the cerebrospinal fluid are reduced, thereby reducing the occurrence of lumbar puncture complications and even cerebral hernia caused by excessive outflow of the cerebrospinal fluid; when the soft extending body passes through the needle hole, the direction of the extending body can be flexibly changed along with the direction of the needle hole, so that the use and the operation of the extending body are simple and convenient, and the condition that the internal tissue is extruded and damaged in the inserting and taking-out processes of the extending body is reduced; when the extension body of the conical body is inserted, the extension body can gradually expand the internal tissue forming the needle hole, has the function of insertion guide, and simultaneously reduces the cerebrospinal fluid amount attached to the outer wall of the extension body when the extension body is taken out; the liquid level sensor detects whether the pressure sensor extends into cerebrospinal fluid, the indicating lamp is lightened after responding to a detection signal output by the liquid level sensor, whether the pressure sensor is in a correct detection position or not can be visually displayed through indication of the indicating lamp, and the occurrence of the condition of measuring errors is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

FIG. 1 is a schematic structural view of the connection of the protection tube in the embodiment of the present invention;

fig. 2 is a schematic structural view of the protection tube according to the embodiment of the present invention.

In the figure: 101. a digital meter head; 102. an indicator light; 103. a trigger button; 104. a connecting end; 105. a protective tube; 106. an extension body; 107. a pressure sensor; 108. a liquid level sensor.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings 1-2 and the embodiments.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Example (b): a device for measuring spinal fluid after lumbar puncture is shown in figure 2 and comprises a digital meter head 101, an extension body 106 and a pressure sensor 107, wherein a connecting end 104 is arranged on the side surface of the digital meter head 101. One end of the extension 106 is fixedly connected to the end of the connection end 104, and the other end is fixedly connected to the pressure sensor 107. The pressure sensor 107 is electrically connected with the digital meter head 101. The scale unit of the display panel of the digital watch head 101 is mmH 2O. After the puncture needle is pulled out, the extension body 106 is penetrated through the puncture hole and then the pressure value of cerebrospinal fluid is measured through the pressure sensor 107, the digital meter head 101 is used for visual display, the extension body 106 is taken out after reading is completed, the needle core is inserted, the whole process is convenient and flexible to operate, leakage and waste of cerebrospinal fluid are reduced, and therefore the situation that the lumbar puncture complication or even the cerebral hernia is caused due to too much outflow of cerebrospinal fluid is reduced.

In the present embodiment, the extension 106 is a medical polymer soft body. When the extension body 106 passes through the needle hole, the extension body can flexibly change the direction along the direction of the needle hole, so that the use and the operation of the extension body 106 are simple and convenient, and the situation that the internal tissues are damaged by extrusion in the insertion and taking-out processes of the extension body 106 is reduced.

As shown in fig. 2, the extension 106 is a cone with a diameter gradually decreasing from the connection end 104 to the pressure sensor 107. When the extension body 106 is inserted, the internal tissue forming the needle hole can be gradually expanded, and the extension body has an insertion guiding function; at the same time, when the extension 106 is removed, the amount of cerebrospinal fluid adhering to the outer wall of the extension 106 is reduced.

As shown in fig. 2, a liquid level sensor 108 is disposed on a side of the extension 106 and close to the pressure sensor 107, an indicator 102 is disposed on a surface of the digital meter head 101, and the indicator 102 is electrically connected to the liquid level sensor 108. The liquid level sensor 108 detects whether the pressure sensor 107 extends into cerebrospinal fluid, the indicator lamp 102 is turned on after responding to a detection signal output by the liquid level sensor 108, whether the pressure sensor 107 is in a correct detection position or not can be visually shown through display of the indicator lamp 102, and the occurrence of the situation of measurement errors is reduced.

In the present embodiment, the distance between the liquid level sensor 108 and the pressure sensor 107 along the axial direction of the extension 106 is 1-2 cm. Not only can the position of the pressure sensor 107 be accurately detected, but also the extension 106 can be prevented from being excessively inserted.

As shown in fig. 2, a trigger button 103 for controlling the on-off of the pressure sensor 107 and the liquid level sensor 108 is arranged on the side surface of the digital gauge head 101.

By adopting the technical scheme, the pressure sensor 107 and the liquid level sensor 108 are conducted with the power supply after the trigger button 103 is started, so that the energy consumption of the pressure measuring device in a non-working state can be reduced.

As shown in FIG. 1, the connection end 104 is threaded with a shielding tube 105, and the extension 106 is disposed within the shielding tube 105. The protective tube 105 is screwed with the connecting end 104 to protect the extension 106 and the components.

The working process is as follows: will extend body 106 and pass through pressure sensor 107 measurement cerebrospinal fluid pressure value behind the puncture to through digital table head 101 visual display, take out extension body 106 after the reading is accomplished, and insert the nook closing member, whole process convenient operation, flexibility reduce the cerebrospinal fluid and spill leak, waste, thereby reduce because of the cerebrospinal fluid flow out too much lead to the circumstances of lumbar puncture complication even cerebral hernia formation to take place.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A cerebrospinal fluid pressure measuring device used after lumbar puncture is characterized by comprising a digital gauge head (101), an extension body (106) and a pressure sensor (107), wherein a connecting end (104) is arranged on the side surface of the digital gauge head (101); one end of the extending body (106) is fixedly connected with the end part of the connecting end (104), and the other end of the extending body is fixedly connected with the pressure sensor (107); the pressure sensor (107) is electrically connected with the digital meter head (101).

2. The device for measuring the cerebrospinal fluid pressure after the lumbar puncture as claimed in claim 1, wherein said extension body (106) is a medical polymer soft body.

3. The device as claimed in claim 1, wherein the extension body (106) is a conical body with a diameter gradually decreasing along the direction from the connection end (104) to the pressure sensor (107).

4. The device for measuring the cerebrospinal fluid pressure after the lumbar puncture as claimed in claim 1, wherein the extension body (106) is provided with a fluid level sensor (108) near the pressure sensor (107) on the side, the digital gauge head (101) is provided with an indicator light (102) on the surface, and the indicator light (102) is electrically connected with the fluid level sensor (108).

5. The device for measuring the cerebrospinal fluid pressure after lumbar puncture according to claim 4, wherein the distance between the fluid level sensor (108) and the pressure sensor (107) along the axial direction of the extension body (106) is 1-2 cm.

6. The device for measuring the cerebrospinal fluid pressure after the lumbar puncture as claimed in claim 4, wherein the digital gauge head (101) is provided with a trigger button (103) on and off of a pressure sensor (107) and a liquid level sensor (108) on the side surface.

7. The device for measuring the cerebrospinal fluid pressure after the lumbar puncture as claimed in claim 1, wherein the connecting end (104) is screw-fitted with a protection tube (105), and the extension body (106) is placed in the protection tube (105).