CN107157553B - Digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow - Google Patents
Digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; 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
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3494—Trocars; Puncturing needles with safety means for protection against accidental cutting or pricking, e.g. limiting insertion depth, pressure sensors
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/03—Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs
- A61B5/031—Intracranial pressure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
- A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
- A61B5/6848—Needles
- A61B5/6849—Needles in combination with a needle set
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- A61M1/0023—
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/0045—Devices for taking samples of body liquids
- A61B2010/0077—Cerebrospinal fluid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2202/00—Special media to be introduced, removed or treated
- A61M2202/04—Liquids
- A61M2202/0464—Cerebrospinal fluid
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Abstract
The invention relates to the field of medical equipment, in particular to a digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow speed and flow, which comprises a lumbar puncture needle connecting end, a cerebrospinal fluid pipe connecting end, a pressure sensor and a digital display gauge head, and is characterized in that the inside of a gauge housing is partially narrowed to form a valve seat, the valve seat divides the inner cavity of the gauge housing into a cerebrospinal fluid drainage cavity and a pressure detection cavity, when the valve head is tightly attached to the valve seat, a channel between the cerebrospinal fluid drainage cavity and the pressure detection cavity is blocked, and when the valve head leaves the valve seat, the cerebrospinal fluid drainage cavity is communicated with the pressure detection cavity; the lumbar puncture needle is provided with a lumbar puncture needle connecting end and a cerebrospinal fluid tube connecting end, wherein the cerebrospinal fluid tube connecting end is a section of 90-degree bent tube. Compared with the prior art, the invention has the advantages that: the pressure value can be read out at any time before and during the cerebrospinal fluid collection, and the cranium pressure value after lumbar puncture can be displayed, so that the method has guiding significance for resting position and medication of patients after lumbar puncture.
Description
Technical Field
The invention relates to the field of clinical medical equipment, in particular to a digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow velocity and flow, which can be widely applied to occasions such as neurology, surgery and the like where intracranial pressure of a patient needs to be monitored and lumbar puncture is carried out to obtain cerebrospinal fluid.
Background
Lumbar puncture is a diagnosis operation commonly performed in neurology and surgery, is mainly used for distinguishing diseases such as encephalitis, demyelinating diseases, paratumor syndromes, subarachnoid hemorrhage and the like, has important value for diagnosing and treating nervous system diseases, and cannot replace the importance of lumbar puncture in any imaging examination. The main steps of the current lumbar puncture operation are as follows: 1) The patient is put on the pillow to lie on the back, the neck is bent, the hip is bent, the knee is held by the two hands, and the shoulders are perpendicular to the bed surface; 2) Selecting a waist 3-4 or a waist 4-5 gap position; 3) Sterilizing, spreading towel and local anesthesia; 4) The puncture needle reaches the subarachnoid space through 2 times of falling sense. 5) Pressure measurement: and (5) pulling out the needle core, connecting the pressure measuring tube, and reading out corresponding values when cerebrospinal fluid flows into the pressure measuring tube. 6) The cerebrospinal fluid in the manometric tube is left for testing. 7) Removing the pressure measuring tube, replacing the needle core, removing the lumbar puncture needle, sterilizing, covering with gauze, locally pressing, and finishing the operation.
The operation method has the following defects: the process target is single, and the operation is complicated, has a plurality of risks, such as: 1) The waist puncture needle has no scale, the puncture is completely based on the experience and hand feeling of doctors, clinical patients often need to repeatedly puncture the waist, different doctors can meet each time, the first puncture process is irrelevant to the success or failure of the next waist puncture, and the prompt significance cannot be achieved; 2) For patients with craniocerebral high pressure risk, connecting the pressure measuring tube increases the risk of cerebral hernia, and the former clinical belief is that when cerebrospinal fluid is sprayed out in a line or the pressure measuring tube number is greater than 300mmh (namely 2 glass pressure measuring tubes are connected), the pressure measurement is stopped, otherwise, the patients have cerebral hernia risk, and once cerebral hernia occurs, the sudden death probability of the patients is high. 3) After pressure measurement, the pressure measuring tube is removed, and then a cerebrospinal fluid sample is collected, so that the operation is complicated, part of cerebrospinal fluid is wasted, and the flow speed of the cerebrospinal fluid is difficult to control in the cerebrospinal fluid collecting process. 4) After cerebrospinal fluid is left, the pressure of the patient after lumbar puncture is difficult to estimate, and the rest position and the medication of the patient after lumbar puncture cannot be accurately guided. 5) The pressure measuring process has more steps and more time consumption, and greatly increases the psychological stress of the patient.
The domestic patent number ZL201420437006.0 discloses an improved lumbar puncture needle, and adopts the technical scheme that: consists of a needle tube and a needle seat, wherein the back side of the needle point needle front is provided with a small hole, and the outer end of the needle seat is provided with an external interface. The outer joint is connected with a hose, the pressure measuring tube and the drainage tube are controlled by a three-way valve, the pressure measuring tube is connected with a pressure sensing meter, the drainage tube is provided with a plug, and the hose on the outer joint can be pulled out and inserted into an epidural catheter. The device has the advantages of simple operation, reduced pollution probability, controllable cerebrospinal fluid flow velocity and real-time monitoring of cerebrospinal fluid pressure. The defect is that the plug is easy to fall off, and the effect of controlling the flow rate of cerebrospinal fluid is not stable.
The domestic patent number ZL201220085675.7 discloses an automatic pressure measurement lumbar puncture needle, which is a lumbar puncture needle for automatically detecting the cerebrospinal fluid pressure by using a medical pressure sensor on the basis of a common lumbar puncture needle, and comprises a needle tube, a needle seat, a needle core, a three-way drainage tube, a semiconductor strain gauge and a data transmission line, wherein the needle seat of the puncture needle is provided with the three-way drainage tube and two holes, the side holes are pressure detection holes, and the straight holes are drainage holes. The cerebrospinal fluid is connected with the semiconductor strain gauge of the side hole when the three-way drainage tube is used, after the strain gauge senses a pressure signal, the biological signal is transmitted into an electronic pressure detector through a data wire, and a signal amplifying module and a conversion module are arranged in the electronic pressure detector to convert the biological signal into a digital signal for display. The pressure can be measured before the cerebrospinal fluid is drained, and the drainage can be performed only when the cerebrospinal fluid pressure is safe, so that the cerebrospinal fluid pressure is safer. The defect is that the straight hole is used as a drainage hole, so that drainage and liquid taking are inconvenient, and particularly splashing is easy to occur when the cranium pressure is high.
Disclosure of Invention
The invention aims to provide a digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow speed and flow, which overcomes the defects of the prior art, applies a digital pressure detection technology to lumbar puncture pressure measurement, can leave cerebrospinal fluid without removing a pressure measuring tube, can adjust the cerebrospinal fluid flow speed according to a pressure value, and ensures the safety of lumbar puncture operation; the cranium pressure value after lumbar puncture can be displayed, which has guiding significance for resting position and medication of patients after lumbar puncture; when the cerebrospinal fluid pressure of the patient is too high, the intracranial pressure value can be read out under the safe condition, the incidence rate of cerebral hernia is reduced, and the illness state assessment is facilitated.
In order to achieve the above object, the present invention is as follows.
The digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow comprises a lumbar puncture needle connecting end, a cerebrospinal fluid pipe connecting end, a pressure sensor and a digital display gauge head, and is characterized by comprising an instrument shell, a valve rod, a valve head, a valve seat and a nut sleeve, wherein the inside of the instrument shell is partially narrowed to form the valve seat, the valve seat divides an inner cavity of the instrument shell into a cerebrospinal fluid drainage cavity and a pressure detection cavity, the valve seat is matched with the valve head in shape, when the valve head is tightly attached to the valve seat, a channel between the cerebrospinal fluid drainage cavity and the pressure detection cavity is blocked, and when the valve head is separated from the valve seat, the cerebrospinal fluid drainage cavity is communicated with the pressure detection cavity; the instrument shell is provided with a lumbar puncture needle connecting end and a cerebrospinal fluid pipe connecting end, and the cerebrospinal fluid pipe connecting end is a section of 90-degree bent pipe.
The valve head is located the bottom of valve rod be equipped with the external screw thread section on the valve rod with the internal screw thread meshing of nut cover, be equipped with the external screw thread on the nut cover and be connected with the instrument shell, when the valve rod is rotated about, the valve rod can be relative the nut cover reciprocates.
The internal thread of the nut sleeve is a trapezoid or rectangular thread with the pitch of 3-6 mm.
The top of valve rod is connected with the digital display meter head, the digital display meter head passes the valve rod core through the data line and is connected with the pressure sensor who is located the valve rod bottom, and pressure sensor shows the pressure signal that detects by the digital display meter head in real time.
The data line is provided with a rolling section with not less than 3 circles at the center of the valve rod.
The nut sleeve is connected with a gland, and a sealing filler is arranged between the gland and the nut sleeve.
The instrument housing is made of any transparent material selected from glass, transparent PC, oriented organic glass or polycarbonate.
The connecting end of the lumbar puncture needle is a cone with a large inner part and a small outer part, and the outer diameter of the cone is matched with the inner diameter of the needle seat of the lumbar puncture needle.
The needle body of the lumbar puncture needle is provided with scales, the scales are 0 at the far end of the needle body and gradually increase along the near end of the needle body, and the scales are in millimeter units.
Compared with the prior art, the invention has the beneficial effects that.
1) After scales are marked on the lumbar puncture needle, the lumbar puncture depth can be prompted, and the success rate of lumbar puncture is improved; meanwhile, the needle insertion depth has great prompt significance for patients with multiple lumbar puncture, the probability of successful lumbar puncture of the patients is greatly increased, and the pain of the patients is reduced.
2) The digital display pressure gauge is applied to lumbar puncture pressure measurement, the measurement is rapid and accurate, the pressure value can be read before cerebrospinal fluid is collected, the pressure value can be read at any time in the collecting process, the pressure difference between the pressure value and the pressure value before collection can be calculated, the excessive difference is avoided, the safety of a patient is ensured, meanwhile, the pressure value after lumbar puncture can be read after a sample is left and a valve is closed, and the digital display pressure gauge has guiding significance for guiding the rest position and medication of the patient after lumbar puncture; if the cerebrospinal fluid pressure of the patient is too high, the intracranial pressure value can be rapidly read under the safe condition, the incidence rate of cerebral hernia is reduced, and the disease assessment is facilitated.
3) The instrument housing is made of transparent material, and whether the cerebrospinal fluid enters the pressure measuring instrument or not can be observed.
4) The valve is stable and reliable in structural performance, when the valve is in a closed state, cerebrospinal fluid can be guaranteed not to flow out in the pressure detection cavity when pressure is measured, after the valve head is lifted, cerebrospinal fluid can flow out through the spinal fluid drainage cavity, and the flow speed and the flow of the cerebrospinal fluid can be regulated by adjusting the opening degree of the valve head.
5) The 90-degree bent pipe-shaped cerebrospinal fluid pipe connecting end is convenient to connect with a cerebrospinal fluid collecting pipe, and splashing can be effectively avoided.
6) Can display the cranium pressure value after lumbar puncture, and has guiding significance for resting position and medication of patients after lumbar puncture.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a valve in a closed state according to an embodiment of the present invention.
Fig. 2 is a schematic view of a valve opening structure according to an embodiment of the invention.
In the figure: 1-instrument shell, 2-valve rod, 3-valve head, 4-valve seat, 5-nut cover, 6-cerebrospinal fluid drainage cavity, 7-pressure detection cavity, 8-lumbar puncture needle connecting end, 9-cerebrospinal fluid pipe connecting end, 10-cerebrospinal fluid collection pipe, 11-digital display meter head, 12-data line, 13-pressure sensor, 14-gland, 15-sealing filler, 16-lumbar puncture needle, 17-needle seat and 18-scale.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Referring to fig. 1 and 2, the structure of the embodiment of the digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow comprises an instrument shell 1, a valve rod 2, a valve head 3, a valve seat 4 and a nut sleeve 5, wherein the interior of the instrument shell 1 is partially narrowed to form the valve seat 4, the valve seat 4 divides the inner cavity of the instrument shell into a cerebrospinal fluid drainage cavity 6 and a pressure detection cavity 7, the valve head 3 is positioned at the bottom end of the valve rod 2, the valve head 3 is matched with the valve seat 4 in shape, when the valve head 3 is tightly attached to the valve seat 4 (the valve is closed), a channel between the cerebrospinal fluid drainage cavity 6 and the pressure detection cavity 7 is blocked, and when the valve head 3 leaves the valve seat 4 (the valve is opened), the cerebrospinal fluid drainage cavity 6 is communicated with the pressure detection cavity 7; the instrument shell 1 is provided with a waist puncture needle connecting end 8 and a cerebrospinal fluid pipe connecting end 9, the cerebrospinal fluid pipe connecting end 9 is a section of 90-degree bent pipe, and when the cerebrospinal fluid collecting pipe 10 is connected, the vertically downward outlet can effectively avoid splashing compared with the horizontally-oriented outlet.
The valve rod 2 is provided with an external thread section which is meshed with the internal thread of the nut sleeve 5, the nut sleeve 5 is provided with an external thread which is connected with the instrument shell 1, when the valve rod 2 rotates left and right, the valve rod 2 can move up and down relative to the nut sleeve 5, and the valve head 3 is lifted and lowered, so that the valve is opened and closed.
The internal thread of the nut sleeve 5 is rectangular thread with the pitch of 5mm, and compared with the saw-shaped thread, the thread has low friction, is not easy to clamp and is convenient to operate.
The top of valve rod 2 is connected with digital display meter head 11, and digital display meter head passes the valve rod core through data line 12 and is connected with the pressure sensor 13 that is located valve rod 2 bottom, and pressure sensor 13 shows the pressure signal that detects by digital display meter head 11 in real time. The digital display meter head 11 can display pressure or an operation end of a valve, and the rotary digital display meter head can realize opening and closing of the valve.
The data wire 12 is provided with a rolling section with the number of the rolling section being not less than 3 at the center of the valve rod, and the rolling section has the function of avoiding the damage to the data wire caused by rotation, so that the working stability and reliability of the pressure measuring instrument can be ensured.
The gland 14 is connected to the nut sleeve 5, the sealing filler 15 is arranged between the gland 14 and the nut sleeve 5, and the sealing filler 15 is used for isolating the inside of the instrument shell from the outside so as to avoid pollution.
The instrument shell 1 is made of transparent PC material, so that whether cerebrospinal fluid enters the pressure measuring instrument or not and the color of the cerebrospinal fluid can be conveniently observed, and smooth operation is ensured.
The waist puncture needle connecting end 8 is a cone with a large inner part and a small outer part, and the outer diameter of the cone is matched with the inner diameter of the needle seat 17 of the waist puncture needle 16. The needle body of the lumbar puncture needle 16 is provided with scales 18, the scales are 0 at the distal end of the needle body, and gradually increase along the proximal end of the needle body, and the scales are in millimeters.
The invention discloses a digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow.
1) The patient is put on the pillow to lie on the back, bends the neck, bends the hips, holds the knees with both hands, and has shoulders perpendicular to the bed surface.
2) Selecting the gap position of the waist 3-4 or the waist 4-5.
3) Sterilizing, spreading towel, and local anesthesia.
4) The puncture needle reaches the subarachnoid space through 2 times of falling sense.
5) After the lumbar puncture is successful, the lumbar puncture needle core is pulled out, the needle seat 17 is directly connected with the lumbar puncture needle connecting end 8 (at the moment, the valve is in a closed state), and after cerebrospinal fluid flows into the pressure detection cavity 7, the pressure measurement can be finished through the pressure sensor, and the corresponding cerebrospinal fluid pressure value is read through the digital display meter head.
6) After the intracranial pressure value is recorded, a valve is opened, the valve rod is rotated to adjust the flow rate of cerebrospinal fluid according to the pressure value on the head of the digital display meter, a cerebrospinal fluid collecting tube 10 is placed at the connecting end 9 of the cerebrospinal fluid tube, a cerebrospinal fluid sample is reserved for taking, the valve is closed after the cerebrospinal fluid sample is reserved, and the intracranial pressure value after lumbar puncture is read again.
7) Removing the pressure gauge, replacing the needle core, removing the lumbar puncture needle, sterilizing, covering with gauze, locally pressing, and finishing the operation.
The above embodiments are merely specific examples selected for the purpose of illustrating the objects, technical solutions and advantageous effects of the present invention, but should not limit the scope of the present invention, and various modifications, equivalent substitutions and improvements can be made without departing from the spirit and principle of the present invention.
Claims (3)
1. The digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow comprises a lumbar puncture needle connecting end, a cerebrospinal fluid pipe connecting end, a pressure sensor and a digital display gauge head, and is characterized by comprising an instrument shell, a valve rod, a valve head, a valve seat and a nut sleeve, wherein the inside of the instrument shell is partially narrowed to form the valve seat, the valve seat divides an inner cavity of the instrument shell into a cerebrospinal fluid drainage cavity and a pressure detection cavity, the valve seat is matched with the valve head in shape, when the valve head is tightly attached to the valve seat, a channel between the cerebrospinal fluid drainage cavity and the pressure detection cavity is blocked, and when the valve head is separated from the valve seat, the cerebrospinal fluid drainage cavity is communicated with the pressure detection cavity; the instrument shell is provided with a lumbar puncture needle connecting end and a cerebrospinal fluid pipe connecting end, and the cerebrospinal fluid pipe connecting end is a section of 90-degree bent pipe; the valve head is positioned at the bottom end of the valve rod, an external thread section is arranged on the valve rod and meshed with the internal thread of the nut sleeve, the nut sleeve is provided with external threads and connected with the instrument shell, and when the valve rod rotates left and right, the valve rod moves up and down relative to the nut sleeve; the internal thread of the nut sleeve is a trapezoid or rectangular thread with the pitch of 3-6 mm; the nut sleeve is connected with a gland, and a sealing filler is arranged between the gland and the nut sleeve; the instrument shell is made of any transparent material selected from glass, transparent PC, oriented organic glass or polycarbonate; the connecting end of the lumbar puncture needle is a conical body with a large inner part and a small outer part, and the outer diameter of the conical body is matched with the inner diameter of the needle seat of the lumbar puncture needle; the needle body of the lumbar puncture needle is provided with scales, the scales are 0 at the far end of the needle body and gradually increase along the near end of the needle body, and the scales are in millimeter units.
2. The digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow according to claim 1, wherein the top end of the valve rod is connected with a digital display meter head, the digital display meter head passes through the valve rod core through a data line and is connected with a pressure sensor positioned at the bottom end of the valve rod, and the pressure sensor displays the detected pressure signal in real time by the digital display meter head.
3. The digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow according to claim 2, wherein said data wire is provided with a crimp segment of not less than 3 turns at the valve stem core.
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| CN201710367745.5A CN107157553B (en) | 2017-05-23 | 2017-05-23 | Digital lumbar puncture pressure gauge with controllable cerebrospinal fluid flow |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497004A (en) * | 2017-10-10 | 2017-12-22 | 西安汇智医疗集团有限公司 | A kind of intelligent drainage of cerebrospinal fluid control and identification alarm system |
| CN108338782A (en) * | 2018-04-24 | 2018-07-31 | 苏州诺来宁医疗科技有限公司 | A kind of cerebrospinal pressure measures and release device |
| CN108338825B (en) * | 2018-04-24 | 2023-05-26 | 苏州诺来宁医疗科技有限公司 | Integrated safe lumbar puncture outfit |
| CN109124736B (en) * | 2018-08-14 | 2023-08-15 | 刘斌 | Lumbar puncture needle assembly with positioning and color development functions |
| CN110522478A (en) * | 2019-09-20 | 2019-12-03 | 中国人民解放军陆军军医大学第一附属医院 | A kind of cerebrospinal fluid extraction tool |
| CN112842408B (en) * | 2021-02-04 | 2022-11-01 | 中国人民解放军陆军军医大学第一附属医院 | Auxiliary propelling device for lumbar puncture needle |
| CN113951860A (en) * | 2021-10-28 | 2022-01-21 | 谢南昌 | Spinal fluid pressure measurement and collection device in lumbar puncture |
| FR3133741A1 (en) * | 2022-03-28 | 2023-09-29 | Centre Hospitalier Universitaire De Toulouse | Device and method for measuring at least one physiological parameter |
| CN115998388B (en) * | 2023-02-27 | 2024-03-19 | 迈德微创(天津)医疗器械有限责任公司 | Cerebrospinal fluid pressure measuring device and method for lumbar puncture |
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| CN203341799U (en) * | 2012-03-08 | 2013-12-18 | 兰州大学第一医院 | Automatic pressure-measuring lumbar spinal needle |
| CN106421940A (en) * | 2016-10-11 | 2017-02-22 | 山东大学 | Closed in-vitro ventricular drainage apparatus |
| CN207590740U (en) * | 2017-05-23 | 2018-07-10 | 中国医科大学附属第一医院 | The flux controllable digitlization waist of cerebrospinal fluid wears measuring cell |
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