CN110522478B - A cerebrospinal fluid extraction tool - Google Patents
A cerebrospinal fluid extraction tool Download PDFInfo
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- CN110522478B CN110522478B CN201910892348.9A CN201910892348A CN110522478B CN 110522478 B CN110522478 B CN 110522478B CN 201910892348 A CN201910892348 A CN 201910892348A CN 110522478 B CN110522478 B CN 110522478B
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- 230000001105 regulatory effect Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 14
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- 238000003556 assay Methods 0.000 description 3
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- 210000004556 brain Anatomy 0.000 description 2
- 210000003169 central nervous system Anatomy 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
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- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 206010064091 Iatrogenic infection Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008499 blood brain barrier function Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000642 iatrogenic effect Effects 0.000 description 1
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- 229910052744 lithium Inorganic materials 0.000 description 1
- 210000004880 lymph fluid Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B2010/0077—Cerebrospinal fluid
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Abstract
本发明涉及一种脑脊液抽取工具，包括引流针，还包括便于医护人员进行施力扎针的夹持组件和用于对患者颅内压进行测量的颅内压测量组件；所述夹持组件包括两块铰接在一起的夹板和设置在夹板内侧与引流针外壁贴合增加摩擦力的弹性垫，所述夹板外侧设置有手指挤压块。该脑脊液抽取工具,通过铰接连接的两个夹板、手指挤压块和弹性垫的配合使用，相较于传统的脑脊液抽取方式，本技术方案可有效地解决因引流针的针径较小，不便于医护人员进行施力的问题，有效提高了脑脊液抽取工作的工作效率，进一步的避免了医护人员手部直接接触引流针，造成的医源性感染。
The present invention relates to a cerebrospinal fluid extraction tool, including a drainage needle, a clamping assembly that is convenient for medical staff to apply force to insert the needle, and an intracranial pressure measuring assembly for measuring the intracranial pressure of a patient; the clamping assembly includes two splints hinged together and an elastic pad arranged on the inner side of the splint to fit the outer wall of the drainage needle to increase friction, and a finger squeezing block is arranged on the outer side of the splint. Compared with the traditional cerebrospinal fluid extraction method, the cerebrospinal fluid extraction tool, through the coordinated use of two hinged splints, finger squeezing blocks and elastic pads, can effectively solve the problem that the drainage needle has a small needle diameter and is inconvenient for medical staff to apply force, effectively improve the work efficiency of cerebrospinal fluid extraction, and further avoid medical staff's hands directly contacting the drainage needle, causing medical-induced infection.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a cerebrospinal fluid extraction tool.
Background
Cerebrospinal fluid is a colorless transparent fluid that exists in the ventricles and subarachnoid spaces. The cerebrospinal fluid is continuously produced and continuously absorbed and reflowed to veins, plays a 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 functions on the brain and spinal cord.
In the medical field, cerebrospinal fluid contains certain cells and chemical components, and under pathological conditions, substances isolated by the blood-brain barrier can enter the cerebrospinal fluid to cause the components to change, and the cerebrospinal fluid test can know the changes and help to diagnose diseases.
The cerebrospinal fluid extraction tool used by the current medical staff for patients has extremely simple structure and some defects, the current medical staff extracts the guide needle inside the drainage needle so as to achieve the purpose of extracting and draining the cerebrospinal fluid of the patients, the medical staff then uses the storage tube to store the drained cerebrospinal fluid, finally pours the stored cerebrospinal fluid into different test tubes to a medical clinical laboratory for cerebrospinal fluid inspection, the process is time-consuming and labor-consuming, the problem of poor sanitation exists, when the medical staff extracts the cerebrospinal fluid of the patients, the length of the drainage needle is far longer than that of a common needle, the current medical staff only carries out the puncture work by wearing gloves by hands, on one hand, the process is unfavorable for the medical staff to carry out the force application and the puncture because of the smaller needle diameter of the drainage needle, the work efficiency of medical personnel cerebrospinal fluid extraction work is very easily influenced, the uncomfortable sense of patient's health has been aggravated, on the other hand, medical personnel is in the in-process that uses the drainage to puncture to patient's target intervertebral space position, medical personnel is because of the length overlength of drainage needle, must be the syringe needle position of first hand grab drainage needle, after the part of drainage needle slowly gets into human health, the middle part of second hand grab drainage needle carries out the application of force to remaining drainage needle and pricks the needle, in-process, very easily touch the drainage needle because of medical personnel's hand, the drainage needle immediately inserts inside the patient's health again, this process then very easily causes iatrogenic bacterial infection, the emergence of above-mentioned circumstances, then can not guarantee that cerebrospinal fluid extraction work can be safe, health, quick go on. Therefore, we propose a cerebrospinal fluid extraction tool to solve the above-mentioned problems.
Disclosure of Invention
Therefore, the invention aims to provide a cerebrospinal fluid extraction tool, which solves the problems that in the cerebrospinal fluid extraction process of the prior art, the needle diameter of a drainage needle is smaller, so that medical staff is inconvenient to apply force, and meanwhile, the problems of poor sanitation and lower safety coefficient in the cerebrospinal fluid extraction process are further solved.
The invention is realized by the following technical scheme:
a cerebrospinal fluid extraction tool, which comprises a drainage needle, a clamping assembly for facilitating the force application and needle insertion of medical staff, and an intracranial pressure measuring assembly 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 the clamping plates and is attached to the outer wall of the drainage needle to increase friction force, and a finger extrusion block is arranged on the outer side of the clamping plates;
The end part of the drainage needle is communicated with a cerebrospinal fluid treatment assembly through a first rubber tube;
The intracranial pressure measuring assembly comprises a pressure sensor arranged on the first rubber tube and used for measuring intracranial pressure and a first display screen arranged on the first rubber tube and used for displaying intracranial pressure information measured by the pressure sensor.
Further, the cerebrospinal fluid processing assembly comprises a speed regulating assembly, the speed regulating assembly comprises a storage tube communicated with the end part of the drainage needle through a first rubber tube, a suction tube communicated with the storage tube through a second rubber tube and used for sucking air from the inside of the storage tube, and a deformable plastic layer which is arranged inside the storage tube and can deform along with the change of air pressure.
Further, the deformable plastic layer is made of plastic cloth.
Further, both ends of the first rubber tube are respectively plugged into the drainage needle and the storage tube through rubber plugs, both ends of the second rubber tube are respectively plugged into the storage tube and the air suction tube through rubber plugs, and the rubber plugs are of hollow structures.
Further, still including the monitoring component that is used for monitoring the inside gas pressure of storage tube and changes, the monitoring component is including setting up the inside air 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 the atmospheric pressure change information at storage tube surface.
Further, the monitoring assembly further includes a battery case disposed outside the receiving tube for mounting the battery.
Further, the top of accomodating the pipe is offered and is used for carrying out the pressure release mouth of exhaust pressure release to accomodating the intraductal portion of taking in, the top of accomodating the pipe is provided with the cock body that is used for shutoff pressure release mouth through connecting the rope.
Further, still including adjusting the regulation and control subassembly of cerebrospinal fluid extraction drainage, regulation and control subassembly is including encircling and setting up telescopic tube and the flexible pipe that is used for applying the tight power of tightening to first rubber tube on first rubber tube, telescopic tube and flexible one end of pipe are articulated the connection, two spacing holes have been seted up at least to telescopic tube's the other end, and flexible other end be provided with spacing hole looks block's elasticity limit key in order to be convenient for flexible pipe insert the inside back of telescopic tube and fix.
Further, the cerebrospinal fluid processing assembly is a test tube in communication with an end of a drainage needle.
The invention has the beneficial effects that:
1. This cerebrospinal fluid extraction instrument uses through the cooperation of two splint of articulated connection, finger extrusion piece and elastic pad, when medical personnel's hand is grabbed the drainage and is carried out the drainage of inserting needle to patient cerebrospinal fluid, but the splint at the spacing position of finger extrusion piece is grabbed to hand to carry out the application of force to splint, thereby with force conduction to the elastic pad, the elastic pad that this moment will with drainage needle in close contact with, with reach the clamping force that reinforcing medical personnel carried out the drainage needle, be convenient for medical personnel carry out the extraction work of cerebrospinal fluid from this, compare in traditional cerebrospinal fluid extraction mode, this technical scheme can effectually be solved because of the needle diameter of drainage needle is less, the problem of being inconvenient for medical personnel to carry out the application of force, the work efficiency of cerebrospinal fluid extraction work has effectively been improved, the uncomfortable sense of patient has been reduced, further avoided medical personnel's hand direct contact drainage needle, and probably cause the problem of iatrogenic infection to the patient.
2. This cerebrospinal fluid extraction instrument uses through articulated telescopic tube and flexible pipe, spacing hole and the cooperation of elasticity spacing key that connects, can be convenient for medical personnel's free control cerebrospinal fluid's mobile extraction, medical personnel can be according to the drawing of actual cerebrospinal fluid circumstances, when the drawing work of the cerebrospinal fluid of need stopping, only need with the inside depths of flexible pipe deep into telescopic tube, and utilize the block cooperation in elasticity spacing key and spacing hole, in order to reach the fixed purpose with flexible pipe, thereby improve the contact force between flexible pipe and telescopic tube and the first rubber tube, in order to reach the mesh of tightening first rubber tube, the unable extraction flow of cerebrospinal fluid, when the cerebrospinal fluid of need extracting, medical personnel can be according to the actual operation on site, the contact force between flexible pipe and the first rubber tube, then can free flow, compared traditional through the inside guide pin of extraction drainage needle, and then connect the drainage needle with the help of external storage tool, this technical scheme has continuity in actual operation, and for traditional cerebrospinal fluid extraction mode, sanitation and safety, medical personnel's contact with the medical personnel has been reduced, the medical personnel has avoided the direct operation of medical needle to cause the infection to the patient.
3. According to the cerebrospinal fluid extraction tool, through the cooperation of the pressure sensor arranged on the first rubber tube and the second display screen, when a medical staff extracts cerebrospinal fluid from a patient, the real-time information of the intracranial pressure of the patient can be detected after the first rubber tube and the drainage needle penetrate into the human body, so that the medical staff can conveniently extract the cerebrospinal fluid under the condition that the intracranial pressure of the patient is normal, compared with a traditional intracranial pressure measurement mode, the pressure measuring tube is connected after puncture to measure the cerebrospinal fluid pressure, and then the pressure measuring tube is connected with mercury to measure the intracranial pressure through the floating condition of mercury.
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 top view of a first embodiment of the present invention;
FIG. 4 is a partial side cross-sectional view of a regulatory assembly of a first embodiment of the invention;
fig. 5 is a schematic structural view of a second embodiment of the present invention.
The device comprises a speed regulating component, a 101, an air extraction cylinder, a 102, a deformable plastic layer, a 2, a storage tube, a 3, a plug body, a 4, a clamping component, a 401, a clamping plate, a 402, an elastic pad, a 403, a finger extrusion block, a 5, a drainage needle, a6, a regulating component, a 601, an extension tube, a 602, an extension tube, a 7, a monitoring component, a 701, a gas pressure sensor, a 702, a second display screen, a 703, a battery case, an 8, an intracranial pressure measuring component, a 801, a pressure sensor, a 802, a first display screen, a 9, a cerebrospinal fluid processing component, a 10 and a test tube.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the foregoing description of the invention, it should be noted that the azimuth or positional relationship indicated by the terms "one side", "the other side", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "identical" and the like do not denote that the components are identical, but rather that there may be minor 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 tilted.
First embodiment:
1-4, the invention provides a technical scheme that the cerebrospinal fluid extraction tool comprises a drainage needle 5, a clamping assembly 4 for facilitating force application and needle insertion by medical staff and an intracranial pressure measuring assembly 8 for measuring intracranial pressure of a patient;
the clamping assembly 4 comprises two clamping plates 401 hinged together and an elastic pad 402 which is arranged on the inner side of the clamping plates 401 and is attached to the outer wall of the drainage needle 5 to increase friction force, a finger extrusion block 403 is arranged on the outer side of the clamping plates 401, the purpose of the clamping plates 401 is to enable the clamping plates 401 to feel the pressure applied by hands of medical staff when the hands of the medical staff pinch the finger extrusion block 403 tightly, the pressure is transmitted to the elastic pad 402, gaps (shown as figure 3 of the specification) exist between the elastic pad 402 and the drainage needle 5, after the elastic pad 402 senses the pressure applied by the medical staff, the elastic pad 402 is gradually close to the drainage needle 5 and is attached to the drainage needle 5 to achieve the purpose of increasing friction force between the elastic pad 402 and the drainage needle 5, the two clamping plates 401 are arranged in hinged connection, the purpose of the clamping plates 401 can be unfolded immediately after the medical staff has finished puncturing the spinal cord of a patient, and the medical staff has the fingers placed the finger extrusion block, the purpose of the clamping plates 401 can be more effectively facilitated, and the medical staff can apply force to the clamping plates 401, and the clamping force to the drainage needle 5 is improved;
The end part of the drainage needle 5 is communicated with a cerebrospinal fluid treatment assembly 9 through a first rubber tube, and the cerebrospinal fluid treatment assembly 9 is used for the medical staff to treat after the cerebrospinal fluid is extracted;
the intracranial pressure measuring assembly 8 comprises a pressure sensor 801 arranged on a first rubber tube and used for measuring intracranial pressure, and a first display screen 802 arranged on the first rubber tube and used for displaying intracranial pressure information measured by the pressure sensor 801, wherein the pressure sensor 801 and the first display screen 802 can be powered by a lead external power supply or an external lithium battery, the pressure sensor 801 can be 20KG200KG3T5T, when a medical staff is required to extract cerebrospinal fluid of a patient, the first rubber tube can be tightened by the regulating and controlling assembly 6 to avoid the fact that the cerebrospinal fluid of the patient flows 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 the specific condition information is transmitted to the first display screen 802, so that the medical staff can master the intracranial pressure condition of the patient at any time, the intracranial pressure is required to be emphasized, namely, the pressure of the intracranial pressure of the cerebrospinal fluid is normally 80-180 mm, a 8-18 mm column of a test, a cerebral spinal column is required to be stressed, when the pressure of the cerebral spinal column is 325 p of a national standard, the cerebral spinal column is 0.78.78-K (the pressure of the lumbar) is not normally measured, and the pressure is not normally measured, if the pressure of the cerebral spinal column is higher than 0.40-50 mm, and the pressure is higher than the normal pressure of the lumbar vertebra is about 0.40-50 mm, so that the pressure is more than the normal pressure of the lumbar vertebra is measured, and the patient is more than about 0.80-50 mm of the normal pressure is more than the normal pressure, and the pressure is more than the normal pressure, and the lumbar pressure is more than the normal pressure is measured, and the pressure is required to be measured, the lumbar pressure, the pressure is required to be measured, the pressure condition, and the pressure condition is high pressure, the cerebrospinal fluid can be drained to the inside of the storage tube 2 through the regulating and controlling component 6.
In the invention, the following components are added: the cerebrospinal fluid processing assembly 9 comprises a speed regulating assembly 1, the speed regulating assembly 1 comprises a storage tube 2 communicated with the end part of a drainage needle through a first rubber tube, an air suction tube 101 communicated with the storage tube 2 through a second rubber tube and used for sucking air from the inside of the storage tube 2, and a deformable plastic layer 102 which is arranged inside the storage tube 2 and can deform along with the change of air pressure, when a medical staff detects that the cerebrospinal fluid extraction drainage speed is slower, the air in the storage tube 2 can be sucked by the air suction tube 101, when the air pressure in the storage tube 2 is reduced, the deformable plastic layer 102 is gradually expanded, and the air pressure in the deformable plastic layer 102 is reduced, and the cerebrospinal fluid needs to be emphasized.
In the invention, the deformable plastic layer 102 is made of plastic cloth, the plastic cloth has the advantages of good flexibility, high working strength, difficult rupture and the like, the deformable plastic layer 102 made of plastic cloth is used in the accommodating tube 2, when the gas pressure in the accommodating tube 2 changes, the deformable plastic layer 102 changes due to the external gas pressure, so that slight deformation is caused, the emphasis is that after cerebrospinal fluid is extracted into the accommodating tube 2, the inside of the deformable plastic layer 102 finally flows in, when the gas pressure in the accommodating tube 2 changes, the deformable plastic layer 102 senses the change of the gas pressure in the accommodating tube 2, and the gas pressure in the deformable plastic layer 102 also changes due to the deformation.
In the invention, two ends of a first rubber tube are respectively plugged into the drainage needle 5 and the storage tube 2 through rubber plugs, two ends of a second rubber tube are respectively plugged into the storage tube 2 and the air suction tube 101 through rubber plugs, the rubber plugs are of hollow structures, and in the process of extracting cerebrospinal fluid, the inside of the rubber plugs is of hollow structures, so that the flow of the cerebrospinal fluid is facilitated, and the tightness of the drainage needle 5, the storage tube 2 and the air suction tube 101 is further improved by utilizing the rubber property of the rubber plugs, so that the cerebrospinal fluid is prevented from flowing out through gaps of the drainage needle 5, the storage tube 2 or the air suction tube 101.
The invention further comprises a monitoring component 7 for monitoring the pressure change in the storage tube 2, wherein the monitoring component 7 comprises an air pressure sensor 701 arranged in the storage tube 2 and used for sensing the air pressure change and a second display screen 702 arranged on the surface of the storage tube 2 and used for displaying the air pressure change information, 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, and the purpose of monitoring the change of the air pressure in the storage tube 2 at any time is to enable medical staff to detect that the air pressure in the storage tube 2 is too high, and when the medical staff is unfavorable for the extraction and the diversion of cerebrospinal fluid, the air in the storage tube 2 can be pumped by means of the pumping cylinder 101, so that the air pressure in the storage tube 2 and the deformable plastic layer 102 can be changed in sequence.
In the invention, the monitoring assembly 7 further comprises a battery shell 703 arranged outside the storage tube 2 for installing a battery, and the battery can be conveniently installed by arranging the battery shell 703 to supply power to the second display screen 702 and the air pressure sensor 701.
The top of the storage tube 2 is provided with a pressure relief opening for exhausting and relieving pressure in the storage tube 2, the top of the storage tube 2 is provided with a plug body 3 for plugging the pressure relief opening through a connecting rope, when a medical staff starts cerebrospinal fluid extraction work, the plug body 3 can be pulled out, so that the inside of the storage tube 2 is depressurized, cerebrospinal fluid can smoothly flow into the inside of the storage tube 2, the pressure relief opening is essentially an air outlet which is formed at the top end (relative to the top end of the deformable plastic layer 102) of the storage tube 2, and when the plug body 3 is pulled out from the air outlet, air in the deformable plastic layer 102 can be discharged through the air outlet, so that the situation that the air pressure in the deformable plastic layer 102 is too high, and the cerebrospinal fluid cannot flow into the deformable plastic layer 102 is avoided.
The utility model further comprises a regulating and controlling component 6 for regulating the drainage of the cerebrospinal fluid extraction, wherein the regulating and controlling component 6 comprises a telescopic tube 602 and a telescopic tube 601 which are circumferentially arranged on the first rubber tube and used for applying tightening force to the first rubber tube, one ends of the telescopic tube 602 and the telescopic tube 601 are hinged, at least two limit holes are formed in the other end of the telescopic tube 602, an elastic limit key which is clamped with the limit holes is arranged at the other end of the telescopic tube 601 so as to be convenient for fixing the telescopic tube 601 after the telescopic tube 601 is inserted into the telescopic tube 602, when a medical staff starts to perform the cerebrospinal fluid extraction operation on a patient, the position of the telescopic tube 601 in the telescopic tube 602 can be regulated, so that the clamping contact force (refer to figure 5 in the specification) of the telescopic tube 601 and the telescopic tube 602 on the first rubber tube can be regulated, when the clamping force is large, the purpose of tightening the first rubber tube is achieved, the cerebrospinal fluid can not continue to flow, when the clamping force is small, the first rubber tube is relatively loose, the cerebrospinal fluid can smoothly flow, and the elastic limit key is required to be adjusted to be in a mode, and the elastic limit key is disclosed in the utility model is based on a BIM (the principle of being applied to a more than 57U, and a new utility model is described in the elastic limit device for carrying out on the utility model, and a more than 57U-shaped device.
Working principle: before use, medical staff firstly checks the safety of the local structure of the tool, when in use, firstly disinfects and sterilizes the tool, ensures that the clamping component 4 is adjusted to be close to the middle position of the drainage needle under the sterile environment, at the moment, the fingers of the medical staff are placed at the finger extrusion block 403 and pinch the clamping plate 401 tightly by hands, the clamping plate 401 transmits 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, so that the medical staff can apply force conveniently, the drainage needle 5 is inserted into the target intervertebral space of a patient, after the front half of the drainage needle is inserted into the body of the patient, the clamping force to the clamping plate 401 is slightly released by hands, the clamping component 4 is manually adjusted to the end part of the rest part of the drainage needle 5, at the moment, the clamping plate 401 is pinched by hands again by the medical staff, by transmitting force to the elastic pad 402 to increase the clamping force between the elastic pad 402 and the drainage needle 5, the medical staff continues to apply force to insert the rest of the drainage needle 5 into the patient, then the medical staff expands the two clamping plates 401 to achieve the purpose of detaching the clamping assembly 4 on 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 start to shrink, and slowly pulls the telescopic tube 601 away from the deep inside the telescopic tube 602 until the first rubber tube is effectively relaxed, cerebrospinal fluid flows out of the patient, flows into the storage tube 2 through the first rubber tube, and flows into the deformable plastic layer 102, when the medical staff detects that cerebrospinal fluid flow is slow, the suction tube 101 can be manually pulled, the internal cavity between the storage tube 2 and the deformable plastic layer 102 (the "internal cavity" mentioned later in this section is the internal cavity between the storage tube 2 and the deformable plastic layer 102, and repeated description is not performed on the internal cavity any more later) is pumped away, the gas pressure of the internal cavity is gradually reduced, the deformable plastic layer 102 is gradually stretched, meanwhile, the internal gas pressure of the deformable plastic layer 102 is also gradually reduced, the pressure in the patient is unchanged, but the pressure difference between two ends of the cerebrospinal fluid flowing changes, the pressure in the patient is more and more than the gas pressure in the deformable plastic layer 102, so that the speed of the cerebrospinal fluid flowing is accelerated, meanwhile, in the cerebrospinal fluid extraction process, the gas pressure sensor 701 always monitors the gas pressure in the internal cavity, and transmits information of pressure change through the second display screen 702, when the gas pressure in the internal cavity is too high, medical staff is influenced to smoothly perform the cerebrospinal fluid extraction work of the patient, the medical staff can immediately pump the gas in the storage tube 2 through the pump 101, after the cerebrospinal fluid is pumped away, the medical staff pulls out the first rubber tube and the second rubber tube, and the assay tube is immediately tested and the assay tube is completely tested and the assay tube is stored in the inside.
Second embodiment:
as shown in fig. 5, unlike the first embodiment, the cerebrospinal fluid processing assembly 9 of the present embodiment is a test tube 10 which is connected to the end of a drainage needle, and the cerebrospinal fluid can be directly stored by the test tube 10, so that a medical staff can conveniently and directly send to an laboratory for detection.
The scale is arranged on the test tube 10, so that the extraction amount can be controlled to ensure the detection effect and reduce the waste.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, 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 and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (3)
1. The cerebrospinal fluid extraction tool comprises a drainage needle and is characterized by further comprising a clamping assembly for facilitating force application and needle insertion by medical staff and an intracranial pressure measuring assembly for measuring 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 the clamping plates and is attached to the outer wall of the drainage needle to increase friction force, and a finger extrusion block is arranged on the outer side of the clamping plates;
The end part of the drainage needle is communicated with a cerebrospinal fluid treatment assembly through a first rubber tube;
The intracranial pressure measuring assembly comprises a pressure sensor arranged on a first rubber tube and used for measuring intracranial pressure and a first display screen arranged on the first rubber tube and used for displaying intracranial pressure information measured by the pressure sensor, the cerebrospinal fluid processing assembly comprises a speed regulating assembly, the speed regulating assembly comprises a containing tube communicated with the end part of a drainage needle through the first rubber tube, an air suction tube communicated with the containing tube through a second rubber tube and used for sucking air inside the containing tube, and a deformable plastic layer which is arranged inside the containing tube and can deform along with gas pressure change, the deformable plastic layer is made of plastic cloth, and the pressure regulating assembly further comprises a monitoring assembly used for monitoring gas pressure change inside the containing tube, the monitoring assembly comprises a gas pressure sensor arranged inside the containing tube and used for sensing gas pressure change and a second display screen arranged on the surface of the containing tube and used for displaying gas pressure change information, and the monitoring assembly further comprises a battery case arranged outside the containing tube and used for installing a battery;
Still including adjusting the regulation and control subassembly of cerebrospinal fluid extraction drainage, regulation and control subassembly is including encircling and setting up telescopic tube and the flexible pipe that is used for applying the tight power of tightening to first rubber tube on first rubber tube, telescopic tube and flexible one end of pipe are articulated the connection, two spacing holes have been seted up at least to telescopic tube's the other end, and flexible other end be provided with spacing hole looks block's elasticity limit key in order to fix after flexible pipe inserts telescopic tube inside.
2. The cerebrospinal fluid extraction tool according to claim 1, wherein said first rubber tube has two ends respectively inserted into the drainage needle and the storage tube by rubber plugs, said second rubber tube has two ends respectively inserted into the storage tube and the air suction tube by rubber plugs, and said rubber plugs are hollow.
3. The cerebrospinal fluid extracting tool according to claim 2, wherein the top of said storage tube is provided with a pressure relief port for releasing the pressure of the air in the storage tube, and the top of said storage tube is provided with a plug body for sealing the pressure relief port by a connecting rope.
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| CN201910892348.9A CN110522478B (en) | 2019-09-20 | 2019-09-20 | A cerebrospinal fluid extraction tool |
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| CN201910892348.9A CN110522478B (en) | 2019-09-20 | 2019-09-20 | A cerebrospinal fluid extraction tool |
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| CN111449693B (en) * | 2020-05-12 | 2025-03-07 | 浙江省肿瘤医院 | A new chest tumor puncture device |
| CN112932549B (en) * | 2021-01-28 | 2022-07-05 | 中国人民解放军陆军军医大学 | Experiment rat cerebrospinal fluid extraction device based on double syringes |
| CN118079114B (en) * | 2024-04-22 | 2024-07-19 | 南昌大学第二附属医院 | Adjustable cerebrospinal fluid flow rate control device for external ventricular drainage |
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