CN210811202U

CN210811202U - Cerebrospinal fluid extracting tool

Info

Publication number: CN210811202U
Application number: CN201921571403.6U
Authority: CN
Inventors: 瞿广玲; 汪萃; 黄嘉璐
Original assignee: First Affiliated Hospital of PLA Military Medical University
Current assignee: First Affiliated Hospital of PLA Military Medical University
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-06-23
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to a cerebrospinal fluid extracting tool, which comprises a drainage needle, a clamping component convenient for medical staff to apply force to prick the needle and an intracranial pressure measuring component used for measuring the intracranial pressure of a patient; the clamping assembly comprises two clamping plates hinged together and an elastic pad which is arranged on the inner side of each clamping plate and is attached to the outer wall of the drainage needle to increase friction force, and a finger squeezing block is arranged on the outer side of each clamping plate. This cerebrospinal fluid extraction instrument uses through the cooperation of two splint, finger extrusion piece and the cushion of articulated connection, compares in traditional cerebrospinal fluid extraction mode, and this technical scheme can solve effectively that the needle footpath because of the drainage needle is less, and medical personnel of being not convenient for carries out the problem of application of force, has effectively improved the work efficiency of cerebrospinal fluid extraction work, and further medical personnel's hand direct contact drainage needle of having avoided leads to the fact iatrogenic source is infected.

Description

Cerebrospinal fluid extracting tool

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to cerebrospinal fluid extraction instrument.

Background

Cerebrospinal fluid is a colorless, transparent fluid that exists in the ventricles of the brain and in the subarachnoid space. Cerebrospinal fluid is continuously generated and continuously absorbed and flows back to veins, plays the role of lymph fluid in the central nervous system, supplies certain nutrition to brain cells, transports away metabolites of brain tissues, regulates the acid-base balance of the central nervous system, buffers the pressure of the brain and spinal cord, and has protection and support effects on the brain and spinal cord.

In the medical field, cerebrospinal fluid contains certain cellular and chemical components, and under pathological conditions, substances isolated by the blood-brain barrier can enter the cerebrospinal fluid to cause changes in the components of the cerebrospinal fluid, and cerebrospinal fluid tests can understand the changes to help diagnose diseases.

The cerebrospinal fluid extracting tool used by the medical staff for the patient at present has a very simple structure and has some disadvantages, the medical staff extracts a guide pin in a drainage needle at present, so that the purpose of extracting and draining the cerebrospinal fluid of the patient is achieved, at the moment, the medical staff reuses a storage tube to contain the drained cerebrospinal fluid, and finally pours the contained cerebrospinal fluid into different test tubes to be sent to a medical inspection department for cerebrospinal fluid inspection, the process is time-consuming and labor-consuming, and the sanitation is poor, when the medical staff extracts the cerebrospinal fluid for the patient, the length of the drainage needle is far longer than that of a common needle head, the medical staff only wears gloves by hands to perform needle pricking and puncturing work at present, on one hand, the needle diameter of the drainage needle is small, the force application and needle pricking of the medical staff are not facilitated, and the work efficiency of the cerebrospinal fluid extracting work of the medical staff is very easily influenced, aggravate patient's uncomfortable sense of health, on the other hand, medical personnel are using the drainage to the in-process of patient's target intervertebral space position puncture, medical personnel are because of the length overlength of drainage needle, must be the syringe needle position of holding drainage needle in hand earlier, after partly slow entering human health of drainage needle, hold the middle part of drainage needle again, carry out the application of force needle to remaining part's drainage needle, this in-process, very easily because of medical personnel hand touching drainage needle, inside the drainage needle inserts patient's health again immediately, this process then very easily causes iatrogenic source bacterial infection, the emergence of the above-mentioned condition, then can't guarantee that cerebrospinal fluid extraction work can be safe, sanitation, quick going on. Therefore, we propose a cerebrospinal fluid extraction tool to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a cerebrospinal fluid extraction instrument to solve prior art cerebrospinal fluid extraction in-process and carried out the problem of application of force because of the less medical personnel of being not convenient for of drainage needle path, further solved the cerebrospinal fluid extraction in-process sanitary nature relatively poor, the lower problem of factor of safety simultaneously.

The utility model discloses a following technical scheme realizes:

a cerebrospinal fluid extracting tool comprises a drainage needle, a clamping component convenient for medical staff to apply force to perform needle insertion, and an intracranial pressure measuring component used for measuring the intracranial pressure of a patient;

the clamping assembly comprises two clamping plates which are hinged together and an elastic cushion which is arranged on the inner side of each clamping plate and is attached to the outer wall of the drainage needle to increase the friction force, and a finger squeezing block is arranged on the outer side of each clamping plate;

the end part of the drainage needle is communicated with a cerebrospinal fluid treatment component through a first rubber tube;

the intracranial pressure measuring assembly comprises a pressure sensor and a first display screen, wherein the pressure sensor is arranged on the first rubber tube and used for measuring the intracranial pressure, and the first display screen is arranged on the first rubber tube and used for displaying intracranial pressure information measured by the pressure sensor.

Further, cerebrospinal fluid processing subassembly includes the speed governing subassembly, the speed governing subassembly includes the storage tube that is linked together through first rubber tube with the tip of drainage needle, through the second rubber tube with take in being used for taking in the intraduct and carry out the pump bowl of bleeding and set up the deformable plastic layer that can change and deform along with the gas pressure change in the storage tube.

Furthermore, the deformable plastic layer is made of plastic cloth.

Furthermore, the two ends of the first rubber tube are plugged into the drainage needle and the accommodating tube respectively through rubber plugs, the two ends of the second rubber tube are plugged into the accommodating tube and the air pumping tube respectively through rubber plugs, and the rubber plugs are of hollow structures.

Further, still including the monitoring subassembly that is used for the inside gas pressure of monitoring storage tube to change, the monitoring subassembly is including setting up at the inside atmospheric pressure sensor that is used for feeling the atmospheric pressure change of storage tube and setting up the second display screen that is used for showing atmospheric pressure change information on the surface of storage tube.

Further, the monitoring assembly further comprises a battery case arranged outside the accommodating pipe and used for installing the battery.

Further, the top of the containing pipe is provided with a pressure relief opening for exhausting and relieving pressure inside the containing pipe, and the top end of the containing pipe is provided with a plug body for plugging the pressure relief opening through a connecting rope.

Further, still including the regulation and control subassembly of adjusting cerebrospinal fluid extraction drainage, the regulation and control subassembly is including surrounding the telescopic tube and the flexible pipe that set up to be used for exerting the tightening force to first rubber tube on first rubber tube, the one end of telescopic tube and flexible pipe is articulated to be connected, two spacing holes have been seted up at least to the telescopic tube's the other end, and the other end of flexible pipe be provided with spacing hole looks block's elasticity spacing key so that flexible pipe inserts telescopic tube inside after fixed.

Further, the cerebrospinal fluid treatment component is a test tube communicated with the end part of the drainage needle.

The beneficial effects of the utility model reside in that:

1. the cerebrospinal fluid extracting tool is used by matching two clamping plates, a finger squeezing block and an elastic cushion which are hinged, when the medical staff holds the drainage to perform the acupuncture drainage on the cerebrospinal fluid of the patient, the fingers can be held by the hand to press the clamping plate at the limiting position of the block and apply force to the clamping plate, thereby transmitting the force to the elastic cushion, the elastic cushion at the moment is in close contact with the drainage needle so as to enhance the clamping force of medical personnel on the drainage needle, from this be convenient for medical personnel carry out the extraction work of cerebrospinal fluid, compare in traditional cerebrospinal fluid extraction mode, this technical scheme can effectually solve because of the needle footpath of drainage needle is less, and medical personnel of being not convenient for carry out the problem of application of force, has effectively improved the work efficiency of cerebrospinal fluid extraction work, has reduced patient's uncomfortable sense of health, and the further hand direct contact drainage needle of having avoided medical personnel, and probably lead to the fact the problem of iatrogenic source nature infection to the patient.

2. The cerebrospinal fluid extracting tool can be used by matching the telescopic sleeve and the telescopic pipe which are connected in a hinged mode, the limiting hole and the elastic limiting key, so that medical workers can freely control the flowing extraction of cerebrospinal fluid, the medical workers can extract the cerebrospinal fluid according to actual cerebrospinal fluid, when the extraction work of the cerebrospinal fluid needs to be stopped, the telescopic pipe only needs to be deeply inserted into the deep part inside the telescopic sleeve, and the elastic limiting key is matched with the limiting hole in a clamping mode to achieve the purpose of fixing the telescopic pipe, so that the contact force between the telescopic pipe and the telescopic sleeve and the first rubber tube is improved, the purpose of tightening the first rubber tube and preventing the cerebrospinal fluid from flowing is achieved, when the cerebrospinal fluid needs to be extracted, the medical workers can clamp the elastic limiting key to the specific limiting hole according to actual operation on site, and therefore the contact force between the telescopic pipe and the telescopic sleeve and the first rubber tube is reduced, cerebrospinal fluid then can free flow this moment, compares tradition through taking out the inside guide pin of drainage needle, borrows external storage tool to connect to get cerebrospinal fluid again, and this technical scheme has the continuity more in actual operation, and for traditional cerebrospinal fluid extraction mode more sanitary, safety, has reduced medical personnel direct contact drainage needle's operating procedure, further has avoided causing the iatrogenic to infect the patient.

3. This cerebrospinal fluid extraction instrument, cooperation through setting up pressure sensor and the second display screen on first rubber tube is used, when medical personnel is carrying out the cerebrospinal fluid extraction to the patient, can go deep into human inside back through first rubber tube and drainage needle, detect the real-time information of the intracranial pressure of patient, from this can be convenient for medical personnel carries out the extraction of cerebrospinal fluid under the normal condition of the intracranial pressure of patient, traditional intracranial pressure measurement mode compares, connect the piezometer pressure pipe after adopting the puncture and measure cerebrospinal fluid pressure, the come-up condition of rethread piezometer pipe mercury measures intracranial pressure, the technical scheme of this application is then more succinct, high efficiency, it is healthy, more be applicable to medical personnel and carry out intracranial pressure's measurement and subsequent intracranial pressure extraction in the short time.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of the present invention;

fig. 2 is a front view of a first embodiment of the present invention;

fig. 3 is a plan view of a first embodiment of the present invention;

fig. 4 is a partial side sectional view of a conditioning assembly according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the present invention.

In the figure: 1. a speed regulation component; 101. an air pumping cylinder; 102. a deformable plastic layer; 2. receiving a tube; 3. a plug body; 4. a clamping assembly; 401. a splint; 402. an elastic pad; 403. a finger squeezing block; 5. a drainage needle; 6. a regulatory component; 601. a telescopic pipe; 602. a telescopic sleeve; 7. a monitoring component; 701. an air pressure sensor; 702. a second display screen; 703. a battery case; 8. an intracranial pressure measurement assembly; 801. a pressure sensor; 802. a first display screen; 9. a cerebrospinal fluid treatment component; 10. test tubes.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the above description of the present invention, it should be noted that the terms "one side" and "the other side" are used for indicating the position or the positional relationship based on the position or the positional relationship shown in the drawings, or the position or the positional relationship which is usually placed when the product of the present invention is used, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Further, the term "identical" and the like do not mean that the components are absolutely required to be identical, but may have slight differences. The term "perpendicular" merely means that the positional relationship between the components is more perpendicular than "parallel", and does not mean that the structure must be perfectly perpendicular, but may be slightly inclined.

The first embodiment:

referring to fig. 1-4, the present invention provides a technical solution: a cerebrospinal fluid extracting tool comprises a drainage needle 5, a clamping component 4 convenient for medical staff to apply force to perform needle insertion, and an intracranial pressure measuring component 8 used for measuring the intracranial pressure of a patient;

the clamping assembly 4 comprises two clamping plates 401 hinged together and an elastic pad 402 arranged on the inner side of the clamping plate 401 and jointed with the outer wall of the drainage needle 5 to increase friction force, a finger pressing block 403 is arranged on the outer side of the clamping plate 401, and it is emphasized that when the finger pressing block 403 is pinched by the hand of the medical staff, the clamping plate 401 senses the pressure applied by the hand of the medical staff and transmits the pressure to the elastic pad 402, a gap is formed between the elastic pad 402 and the drainage needle 5 (as shown in figure 3 in the specification), after the elastic pad 402 senses the pressure applied by the medical staff, the elastic pad 402 gradually approaches the drainage needle 5 and clings to the drainage needle 5 to achieve the purpose of increasing the friction force between the elastic pad 402 and the drainage needle 5, the two clamping plates 401 are arranged to be hinged, so that after the drainage needle 5 punctures the spinal cord of a patient, the two clamping plates 401 can be unfolded immediately, the clamping plate 401 is taken out, and the medical staff places the finger part at the finger squeezing block, so that the medical staff can apply force to the clamping plate 401 more effectively, and the clamping force of the drainage needle 5 is improved;

the end part of the drainage needle 5 is communicated with a cerebrospinal fluid treatment component 9 through a first rubber tube, and medical staff can take out cerebrospinal fluid and then treat the cerebrospinal fluid through the cerebrospinal fluid treatment component 9;

the intracranial pressure measuring assembly 8 comprises a pressure sensor 801 arranged on the first rubber tube and used for measuring the intracranial pressure and a first display screen 802 arranged on the first rubber tube and used for displaying the intracranial pressure information measured by the pressure sensor 801, the pressure sensor 801 and the first display screen 802 can be externally connected with a power supply through a lead or powered by an externally connected lithium battery, the model of the pressure sensor 801 can be 20KG200KG3T5T, when medical personnel need to extract the cerebrospinal fluid of a patient, the first rubber tube can be tightened through the regulating and controlling assembly 6 to prevent the cerebrospinal fluid of the patient from flowing into the accommodating tube 2, then the pressure sensor 801 can detect the specific condition of the intracranial pressure of the patient through the first rubber tube to the drainage needle 5 and transmit the specific condition information to the first display screen 802, so that the medical personnel can master the intracranial pressure condition of the patient at any time, and what needs to emphasize here is, the intracranial pressure, i.e., the pressure of cerebrospinal fluid in the cranial cavity, is normally 80-180 mm water column, 8-18 mm Hg, according to the national guideline for doctors' practice and skills in qualification and examination, p325, the cerebrospinal fluid pressure in the normal adult lying position is 0.78-1.76 kpa (80-180 mm water column) or 40-50 drops/min, the pressure fluctuates with respiration within 10 mm water column, the child pressure is 0.4-1.0 kpa (40-100 mm water column), the intracranial pressure measurement is carried out before the cerebrospinal fluid is extracted and drained, the intracranial pressure is increased, and the cerebrospinal fluid is excessive, and at the moment, if the cerebrospinal fluid is drained too fast, the cerebral hernia can be caused, so severe intracranial hypertension is a contraindication for lumbar puncture, especially for patients occupying the posterior cranial fossa, whereby if the intracranial pressure is too high, then be not convenient for medical personnel to carry out the extraction work of cerebrospinal fluid to the patient, if intracranial pressure is normal, can flow out the cerebrospinal fluid to the inside of accomodating pipe 2 through regulation and control subassembly 6 drainage.

The utility model discloses in: the cerebrospinal fluid processing component 9 comprises a speed regulating component 1, the speed regulating component 1 comprises a containing pipe 2 communicated with the end part of the drainage needle through a first rubber pipe, an air pumping cylinder 101 communicated with the containing pipe 2 through a second rubber pipe and used for pumping air inside the containing pipe 2, and a deformable plastic layer 102 which is arranged inside the containing pipe 2 and can deform along with the change of air pressure, when medical personnel find that the pumping speed of cerebrospinal fluid is slow, the air inside the containing pipe 2 can be pumped by the air pumping cylinder 101, when the air pressure inside the containing pipe 2 is reduced, the deformable plastic layer 102 gradually expands, and the air pressure inside the deformable plastic layer 102 is reduced, and what needs to be emphasized here is that after the cerebrospinal fluid is drained into the containing pipe 2, the cerebrospinal fluid directly flows into the deformable plastic layer 102, when the air pressure inside a patient is unchanged, the air pressure inside the deformable plastic layer 102 is reduced, the pressure difference between the two is gradually increased, so the pumping and flow guiding speed of the cerebrospinal fluid is increased, and the fact that the check valve is arranged on the second rubber tube can prevent pumped gas from flowing back to the inside of the accommodating tube 2 needs to be explained.

The utility model discloses in: the deformable plastic layer 102 is made of plastic cloth, the plastic cloth has the advantages of good flexibility, high working strength, difficulty in breaking and the like, the deformable plastic layer 102 made of the plastic cloth is used in the accommodating tube 2, when the air pressure inside the accommodating tube 2 changes, the deformable plastic layer 102 changes due to the external air pressure, and accordingly slightly deforms, it needs to be emphasized that after cerebrospinal fluid is extracted into the accommodating tube 2, the cerebrospinal fluid finally flows into the inner side of the deformable plastic layer 102, when the air pressure inside the accommodating tube 2 changes, the deformable plastic layer 102 senses the change of the air pressure inside the accommodating tube 2, and simultaneously when the air pressure inside the deformable plastic layer 102 changes, the air pressure inside the deformable plastic layer 102 also changes after the deformation, the technical scheme has the advantages that no other medium is in contact with the extracted cerebrospinal fluid, and the extraction work is directly accelerated, thereby further ensuring the efficiency of cerebrospinal fluid extraction.

The utility model discloses in: the both ends of first rubber tube are respectively through the inside that rubber stopper tightly inserted drainage needle 5 and accomodate pipe 2, the both ends of second rubber tube are also respectively through the inside that rubber stopper tightly inserted and accomodate pipe 2 and pump bowl 101, the rubber stopper is hollow structure, the extraction in-process of cerebrospinal fluid, must flow through rubber stopper and first rubber tube and second rubber tube, the inside with the rubber stopper sets up to hollow structure, its flow of the cerebrospinal fluid of being convenient for, further rubber nature that utilizes the rubber stopper increases and drainage needle 5, accomodate the leakproofness of pipe 2 and pump bowl 101, in order to avoid the cerebrospinal fluid through drainage needle 5, accomodate the gap department of pipe 2 or pump bowl 101 and flow out.

The utility model discloses in: the device also comprises a monitoring component 7 for monitoring the pressure change in the accommodating pipe 2, the monitoring component 7 comprises an air pressure sensor 701 arranged in the accommodating pipe 2 for sensing the air pressure change and a second display screen 702 arranged on the surface of the accommodating pipe 2 for displaying the air pressure change information, the type of the air pressure sensor 701 can be an MIK-P300 air pressure sensor, the air pressure sensor 701 is an instrument for measuring the absolute pressure of air, the air pressure sensor 701 and the second display screen 702 are in signal transmission through a connecting line, the air pressure sensor 701 and the second display screen 702 are arranged at the position, the purpose is to monitor the change of the pressure intensity of the gas in the storage tube 2 at any time, when the medical care personnel find that the pressure intensity of the gas in the storage tube 2 is too high to facilitate the extraction and diversion of the cerebrospinal fluid, the internal gas of the receiving tube 2 can be evacuated by means of the evacuation tube 101, thereby sequentially changing the internal gas pressure of the receiving tube 2 and the deformable plastic layer 102.

The utility model discloses in: the monitoring assembly 7 further includes a battery case 703 disposed outside the receiving tube 2 for installing a battery, and the battery can be easily installed by providing the battery case 703 for supplying power to the second display 702 and the gas pressure sensor 701.

The utility model discloses in: the top of accomodating pipe 2 is offered and is used for the pressure release mouth that exhausts to accomodating 2 insides of pipe, the top of accomodating pipe 2 is provided with the cock body 3 that is used for shutoff pressure release mouth through connecting the rope, when medical personnel begin cerebrospinal fluid extraction during operation, can extract cock body 3, thereby make the inside of accomodating pipe 2 to release pressure, then be convenient for the cerebrospinal fluid can be smooth flow to the inside of accomodating pipe 2, the pressure release mouth mentioned here, its essence is the gas outlet of seting up in 2 tops of accomodating pipe (for the top of deformable plastic layer 102), when cock body 3 extracts in the gas outlet, make the inside gas of deformable plastic layer 102 can discharge through the gas outlet, with avoid the inside gas pressure of deformable plastic layer 102 too big, and lead to the unable water conservancy diversion of cerebrospinal fluid to the inside of deformable plastic layer 102.

The utility model discloses in: the device also comprises a regulation and control component 6 for regulating cerebrospinal fluid extraction and drainage, wherein the regulation and control component 6 comprises a telescopic sleeve 602 and a telescopic tube 601 which are arranged on the first rubber tube in a surrounding manner and used for applying a tightening force to the first rubber tube, one end of the telescopic sleeve 602 is hinged with one end of the telescopic tube 601, the other end of the telescopic sleeve 602 is at least provided with two limiting holes, the other end of the telescopic tube 601 is provided with an elastic limiting key clamped with the limiting holes so that the telescopic tube 601 can be inserted into the telescopic sleeve 602 and then fixed, when a medical worker starts to extract cerebrospinal fluid from a patient, the position of the telescopic tube 601 in the telescopic sleeve 602 can be adjusted, the clamping contact force of the telescopic tube 601 and the telescopic sleeve 602 on the first rubber tube can be adjusted (refer to the attached drawing 5 in the specification), when the clamping force is larger, the purpose of tightening the first rubber tube is achieved, and at the moment, the cerebrospinal fluid, when the clamping force is smaller, the first rubber tube is relatively loose, and the cerebrospinal fluid can smoothly flow, and it needs to be emphasized here that the structure principle of the elastic limit key is described in the granted published utility model "a building construction simulation device based on BIM" (CN208281424U), so the application does not give further details to this point.

The working principle is as follows: before using, medical personnel check the safety of the local structure of the tool firstly, when in use, medical personnel sterilize the tool firstly, ensure that under the sterile environment, firstly adjust the clamping component 4 to be close to the middle position of the drainage needle, at the moment, the fingers of the medical personnel are placed at the finger squeezing block 403, and the hands tightly pinch the clamping plate 401, the clamping plate 401 transmits the force to the elastic pad 402, at the moment, the clamping force between the elastic pad 402 and the drainage needle 5 can be increased, thereby being convenient for the medical personnel to apply the force, the drainage needle 5 is inserted into the target intervertebral space of the patient, after the first half part of the drainage needle is inserted into the body of the patient, the hands slightly loosen the clamping force to the clamping plate 401, the clamping component 4 is manually adjusted to the end part of the rest part of the drainage needle 5, at the moment, the medical personnel tightly pinch the clamping plate 401 again by the hands, the force is transmitted to the elastic pad 402, so as to increase the clamping force between the elastic pad 402 and, the medical staff continues to apply force, the rest drainage needle 5 is inserted into the patient, then the medical staff unfolds the two clamping plates 401 to achieve the purpose of detaching the clamping component 4 from the drainage needle 5, then the medical staff pulls the plug body 3 away from the inner side of the pressure relief opening, then the medical staff presses the elastic limit key to enable the elastic limit key to contract, the telescopic tube 601 is slowly pulled away from the deep inside the telescopic sleeve 602 until the first rubber tube is effectively relaxed, the cerebrospinal fluid flows out of the patient, flows into the accommodating tube 2 through the first rubber tube and flows into the deformable plastic layer 102, when the medical staff finds that the cerebrospinal fluid flows slowly, the air suction cylinder 101 can be manually pulled and pulled, and the internal cavity between the accommodating tube 2 and the deformable plastic layer 102 (the internal cavity mentioned later in this section is the internal cavity between the accommodating tube 2 and the deformable plastic layer 102, the subsequent repeated description is not repeated) to extract the gas, at this time, the gas pressure of the inner cavity is gradually reduced, the deformable plastic layer 102 is gradually unfolded, meanwhile, the internal gas pressure of the deformable plastic layer 102 is also gradually reduced, at this time, the pressure in the patient is unchanged, but the pressure difference between two ends of the flowing cerebrospinal fluid is changed, the pressure in the patient is increasingly greater than the gas pressure in the deformable plastic layer 102, so that the flowing speed of the cerebrospinal fluid is increased, meanwhile, in the process of extracting the cerebrospinal fluid, the gas pressure in the inner cavity is monitored by the gas pressure sensor 701 all the time, the information of the pressure change is transmitted through the second display screen 702, when the gas pressure in the inner cavity is too high, and the work of extracting the cerebrospinal fluid of the patient by medical care personnel is smoothly performed, the medical care personnel can extract the gas in the accommodating tube 2 through the air extracting tube 101 immediately, after the cerebrospinal fluid is extracted, the medical staff pulls out the first rubber tube and the second rubber tube, and immediately sends the cerebrospinal fluid collected in the containing tube 2 to the laboratory department for laboratory test.

Second embodiment:

as shown in fig. 5, different from the first embodiment, the cerebrospinal fluid processing assembly 9 of the present embodiment is a test tube 10 communicated with the end of the drainage needle, and cerebrospinal fluid can be directly stored through the test tube 10, so that the medical staff can directly send to the laboratory for detection.

The scales are arranged on the test tube 10, so that the extraction amount can be controlled, the detection effect is ensured, and the waste is reduced.

Finally, 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 the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. A cerebrospinal fluid extraction tool, comprising a drainage needle, characterized in that: the clamping component is convenient for medical staff to apply force to insert the needle, and the intracranial pressure measuring component is used for measuring the intracranial pressure of the patient;

2. A cerebrospinal fluid extraction tool as in claim 1, wherein: the cerebrospinal fluid processing assembly comprises a speed regulating assembly, the speed regulating assembly comprises an accommodating pipe communicated with the end part of the drainage needle through a first rubber pipe, an air pumping cylinder communicated with the accommodating pipe through a second rubber pipe and used for pumping air inside the accommodating pipe, and a deformable plastic layer which is arranged inside the accommodating pipe and can deform along with the change of gas pressure.

3. A cerebrospinal fluid extraction tool as claimed in claim 2, wherein: the deformable plastic layer is made of plastic cloth.

4. A cerebrospinal fluid extraction tool as claimed in claim 2, wherein: the two ends of the first rubber tube are plugged into the drainage needle and the accommodating tube respectively through rubber plugs, the two ends of the second rubber tube are plugged into the accommodating tube and the air suction tube respectively through the rubber plugs, and the rubber plugs are of hollow structures.

5. A cerebrospinal fluid extraction tool as claimed in claim 2, wherein: still including being used for monitoring the monitoring subassembly of accomodating inside gas pressure change, the monitoring subassembly is including setting up at the inside atmospheric pressure sensor that is used for experiencing the atmospheric pressure change of accomodating intraduct and setting up the second display screen who is used for showing atmospheric pressure change information on accomodating the pipe surface.

6. A cerebrospinal fluid extraction tool as in claim 5, wherein: the monitoring assembly further comprises a battery case arranged outside the accommodating pipe and used for installing the battery.

7. A cerebrospinal fluid extraction tool as claimed in claim 2, wherein: the top of the containing pipe is provided with a pressure relief opening for exhausting and relieving pressure inside the containing pipe, and the top end of the containing pipe is provided with a plug body for plugging the pressure relief opening through a connecting rope.

8. A cerebrospinal fluid extraction tool as in claim 1, wherein: still including adjusting the regulation and control subassembly of cerebrospinal fluid extraction drainage, the regulation and control subassembly is including surrounding the telescopic tube and the flexible pipe that set up to be used for exerting the tightening force to first rubber tube on first rubber tube, the one end of telescopic tube and flexible pipe is articulated to be connected, two spacing holes have been seted up at least to the telescopic tube's the other end, and the other end of flexible pipe be provided with spacing key of elasticity of spacing hole looks block so that flexible pipe inserts telescopic tube inside after fixed.

9. A cerebrospinal fluid extraction tool as in claim 1, wherein: the cerebrospinal fluid processing component is a test tube communicated with the end part of the drainage needle.