WO2023147788A1 - Dispositif de mesure de pression, d'évacuation de fluide et d'injection pour remplacement de fluide céphalorachidien - Google Patents

Dispositif de mesure de pression, d'évacuation de fluide et d'injection pour remplacement de fluide céphalorachidien Download PDF

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Publication number
WO2023147788A1
WO2023147788A1 PCT/CN2023/077392 CN2023077392W WO2023147788A1 WO 2023147788 A1 WO2023147788 A1 WO 2023147788A1 CN 2023077392 W CN2023077392 W CN 2023077392W WO 2023147788 A1 WO2023147788 A1 WO 2023147788A1
Authority
WO
WIPO (PCT)
Prior art keywords
cerebrospinal fluid
storage tank
injection device
level sensor
liquid level
Prior art date
Application number
PCT/CN2023/077392
Other languages
English (en)
Chinese (zh)
Inventor
游佳
Original Assignee
中南大学湘雅医院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中南大学湘雅医院 filed Critical 中南大学湘雅医院
Priority to ZA2023/06435A priority Critical patent/ZA202306435B/en
Publication of WO2023147788A1 publication Critical patent/WO2023147788A1/fr

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Classifications

    • 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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves

Definitions

  • the invention relates to the field of medical devices, in particular to a pressure measuring and discharging liquid injection device for cerebrospinal fluid replacement.
  • Lumbar puncture is a commonly used clinical diagnosis and treatment operation, which can be used to diagnose various inflammatory diseases of the central nervous system, vascular diseases, spinal cord lesions, suspected intracranial space-occupying lesions, undiagnosed nervous system diseases, pneumothorax, vertebral Angiography, etc.; also used for discharge (decompression) and injection of drugs to treat central nervous system diseases due to excessive cerebrospinal fluid pressure.
  • the object of the present invention is to provide a pressure measurement and discharge liquid injection device for cerebrospinal fluid replacement, so as to solve the problems raised in the above-mentioned background technology.
  • the present invention provides the following technical solutions:
  • a pressure measurement liquid discharge injection device for cerebrospinal fluid replacement including a console, a liquid discharge device, an injection device, a connecting tube and a puncture needle;
  • the liquid discharge device includes a cerebrospinal fluid storage tank, and the top of the cerebrospinal fluid storage tank is provided with a first Tank cover;
  • a first conduit is embedded through the first tank cover, one end of the first conduit extends to the top of the cerebrospinal fluid storage tank, and the other end of the first conduit is fixedly connected with a first connecting sleeve head, the first A solenoid valve is fixedly embedded in the connecting sleeve head;
  • the injection device includes a brine storage tank, and a second tank cover matched with it is arranged on the top of the brine storage tank;
  • a second conduit is embedded through the second tank cover, One end of the second conduit extends to the bottom of the brine storage tank, and the other end of the second conduit is fixedly connected with a second connection sleeve head,
  • the connecting sleeve near the first connecting head is threadedly connected with a pressure gauge, and the other two connecting sleeves are respectively connected with the first connecting sleeve head and the second connecting sleeve head threaded connection;
  • the puncture needle includes a needle tube and a second connector fixedly connected to the end of the needle tube, and the second connector cooperates with the first connector;
  • circuit board, the pump is electrically connected to the control circuit board;
  • the pressure gauge and solenoid valve are respectively connected to the control circuit board through wires;
  • a control panel is also fixedly installed on the side wall of the base, and the control panel is connected to the control circuit through wires board connection.
  • the inner wall of the cerebrospinal fluid storage tank is fixedly connected with a first liquid level sensor.
  • the inner wall of the brine storage tank is also fixedly installed with a second liquid level sensor.
  • the first liquid level sensor and the second liquid level sensor are respectively electrically connected to the control circuit board.
  • both the first tank cover and the second tank cover are provided with ventilation ports.
  • the top of the base is provided with a placement groove that cooperates with the liquid discharge device and the injection device.
  • the control circuit board is fixedly connected with the conductive probe of the first liquid level sensor, the second liquid level sensor and the pump, and the conductive probe extends into the placement tank;
  • the cerebrospinal fluid storage tank and The bottom of the brine storage tank is provided with a notch matched with the placement tank, and the first liquid level sensor, the second liquid level sensor and the conductive contacts of the pump are respectively embedded in the notch.
  • the puncture needle further includes a guide wire matched with the needle tube.
  • the liquid level height is detected and monitored, and the liquid discharge volume of the cerebrospinal fluid and the injection volume of normal saline are automatically balanced, and the replacement effect of the cerebrospinal fluid is good;
  • the device can be disassembled after use.
  • the connecting tube and puncture needle are not easy to clean and the cost is low. They are used as disposable items; the console, liquid discharge device, injection device and pressure gauge are not in direct contact with the patient and the cost is high , It can continue to be used after cleaning and disinfection, thereby effectively reducing the cost of use of the device.
  • Fig. 1 is a schematic structural diagram of Embodiment 1 of the present invention.
  • Fig. 2 is a schematic structural diagram of the console in Embodiment 1 of the present invention.
  • Fig. 3 is a schematic structural view of the liquid discharge device in Embodiment 1 of the present invention.
  • Fig. 4 is a schematic structural view of the injection device in Example 1 of the present invention.
  • Fig. 5 is a schematic structural view of the connecting pipe in Embodiment 1 of the present invention.
  • Fig. 6 is a schematic structural view of the puncture needle in Example 1 of the present invention.
  • Fig. 7 is a schematic structural view of the puncture needle in Example 2 of the present invention.
  • a pressure measurement and liquid discharge injection device for cerebrospinal fluid replacement includes a console 1, a liquid discharge device 2, an injection device 3, a connecting tube 5 and a puncture needle 6;
  • the liquid discharge device 2 includes a cerebrospinal fluid storage tank 21, the top of the cerebrospinal fluid storage tank 21 is provided with a first tank cover 22 matched with it, and the cerebrospinal fluid stored in the cerebrospinal fluid storage tank 21 can be discharged by opening the first tank cover 22;
  • a tank cover 22 is embedded with a first conduit 24.
  • One end of the first conduit 24 extends to the top of the cerebrospinal fluid storage tank 21.
  • the other end of a catheter 24 is fixedly connected with a first connecting sleeve head 25, and a solenoid valve 26 is fixedly embedded in the first connecting sleeve head 25;
  • the inner wall of the cerebrospinal fluid storage tank 21 is fixedly connected with a first liquid level sensor twenty three;
  • the injection device 3 includes a saline storage tank 31, and the top of the saline storage tank 31 is provided with a second tank cover 32 matching it; the second tank cover 32 is embedded with a second conduit 35, and one end of the second conduit 35 is Extending to the inner bottom of the brine storage tank 31, the other end of the second conduit 35 is fixedly connected with a second connection sleeve head 36, and a check valve 37 is fixedly embedded in the second connection sleeve head 36; the brine storage tank
  • the inner bottom of 31 is fixedly provided with a pump 34, and the liquid outlet end of the pump 34 is fixedly connected with the bottom end of the second conduit 35; the inner wall of the brine storage tank 31 is also fixedly installed with a second liquid level sensor 33;
  • Both the first tank cover 22 and the second tank cover 32 are provided with ventilation ports to ensure the balance of internal and external pressure, and a filter screen is provided at the ventilation ports to filter bacteria in the air so that they cannot enter the cerebrospinal fluid storage tube 21 and the saline storage tank 31; the second tank cover 32 is generally not opened, and the ventilation port of the second tank cover 32 is also used to add physiological saline in the saline storage tank 31;
  • the head end of the connecting pipe 5 is fixedly connected with a first connecting head 51, and the connecting pipe 5 is also fixedly connected with three connecting sleeves 52 respectively through three branch pipes;
  • the connecting sleeve 52 close to the first connecting head 51 is threadedly connected with Pressure gauge 4,
  • pressure gauge 4 is preferably a mechanical pressure gauge, which is stable and common;
  • the other two connecting sleeves 52 are threadedly connected with the first connecting sleeve head 25 and the second connecting sleeve head 36 respectively;
  • the puncture needle 6 includes a needle tube 61 and a second connector 62 fixedly connected to the end of the needle tube 61, and the second connector 62 cooperates with the first connector 51;
  • the console 1 includes a base 11, a control circuit board 12 is fixedly arranged in the base 11, and the first liquid level sensor 23, the second liquid level sensor 33 and the pump 34 are respectively electrically connected to the control circuit board 12;
  • the pressure gauge 4 and the solenoid valve 26 are respectively connected to the control circuit board 12 through wires;
  • the top of the base 11 is provided with a placement groove 14 for matching the liquid discharge device 2 and the injection device 3;
  • the control circuit board 12 is fixedly connected with the conductive probe 13 of the first liquid level sensor 23, the second liquid level sensor 33 and the pump 34, and the conductive probe 13 extends into the placement tank 14; the bottom of the cerebrospinal fluid storage tank 21 and the saline storage tank 31
  • There is a notch matched with the placement groove 14, and the conductive contacts of the first liquid level sensor 23, the second liquid level sensor 33 and the pump 34 are respectively embedded in the notch, when the liquid discharge device 2 and the injection device 3 are placed on the corresponding When placed on the groove 14, the conductive probe 13 is in contact
  • the cerebrospinal fluid flows into the connecting tube 5 through the puncture needle 6, and the pressure gauge 4 detects the pressure.
  • the solenoid valve 26 is controlled to open, and the cerebrospinal fluid enters the cerebrospinal fluid In the storage tank 21, when the pressure value is lower than the set range (when the pressure is less than 80mm water column) or the discharge volume reaches 40mL, the control solenoid valve 26 is closed, and the cerebrospinal fluid cannot continue to discharge; at this time, the control pump 34 is opened at this time,
  • the physiological saline in the saline storage tank 31 is injected into the patient's body; the specifications of the cerebrospinal fluid storage tank 21 and the saline storage tank 31 are the same, the first liquid level sensor 23 of the liquid discharging device 2 records the discharge capacity of the cerebrospinal fluid, and the second liquid level of the injection device 3
  • the sensor 33 records the injection volume of physiological
  • the puncture needle 6 is pulled out from the patient's body; but when the pressure value exceeds the set range (when the pressure is greater than 500mm water column), the control solenoid valve 26 is closed, the cerebrospinal fluid cannot be drained, and the pump 34 does not work.
  • the discharge of the cerebrospinal fluid is more accurate and safe; the replacement process of the cerebrospinal fluid is carried out automatically, the injection efficiency of the discharge is high, and leakage is not easy to occur, which can better protect the patient. It is safer and more reliable; through the setting of the first liquid level sensor 23 and the second liquid level sensor 33, the liquid level is monitored and monitored, and the amount of cerebrospinal fluid released and the amount of saline injected are automatically balanced, and the effect of cerebrospinal fluid replacement is good.
  • the device can be disassembled after use, the connecting tube 5 and the puncture needle 6 are not easy to clean and the cost is low, and they are used as disposable items; the console 1, the liquid discharge device 2, the injection device 3 and the pressure gauge 4 are not in direct contact with the patient And the cost is relatively high, and it can continue to be used after cleaning and disinfection, thereby effectively reducing the use cost of the device.
  • the puncture needle 6 also includes a guide wire 63 that cooperates with the needle tube 61. By pulling the guide wire 63 to ensure the smooth flow of cerebrospinal fluid, after the guide wire 63 is pulled out Connect the puncture needle 6 again.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Neurology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Otolaryngology (AREA)
  • Anesthesiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

La présente invention concerne un dispositif de mesure de pression, d'évacuation de fluide et d'injection pour le remplacement de fluide céphalorachidien, comprenant une console (1), un dispositif d'évacuation de fluide (2), un dispositif d'injection (3), un tuyau de connexion (5) et une aiguille de ponction (6). Le dispositif d'évacuation de fluide (2) comprend un réservoir de stockage de fluide céphalorachidien (21), et la partie supérieure du réservoir de stockage de fluide céphalorachidien (21) est pourvue d'un premier couvercle de réservoir (22) correspondant à celle-ci. Le dispositif d'injection (3) comprend un réservoir de stockage de solution saline (31), et la partie supérieure du réservoir de stockage de solution saline (31) est pourvue d'un second couvercle de réservoir (32) correspondant à celle-ci. Une pompe (34) est disposée de manière fixe au fond du réservoir de stockage de solution saline (31). Un premier connecteur (51) est connecté de manière fixe à l'extrémité de tête du tuyau de connexion (5), et trois manchons de connexion (52) sont en outre respectivement connectés de manière fixe au tuyau de connexion (5) au moyen de trois tuyaux de dérivation. Un processus de remplacement du fluide céphalorachidien est effectué automatiquement, l'efficacité d'évacuation de fluide et d'injection est élevée, aucune fuite n'est susceptible de se produire, un patient peut être mieux protégé, et le dispositif est plus sûr et plus fiable.
PCT/CN2023/077392 2022-02-24 2023-02-21 Dispositif de mesure de pression, d'évacuation de fluide et d'injection pour remplacement de fluide céphalorachidien WO2023147788A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2023/06435A ZA202306435B (en) 2022-02-24 2023-06-21 Manometric fluid release injection device for cerebrospinal fluid replacement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210171579.2A CN114588494A (zh) 2022-02-24 2022-02-24 一种脑脊液置换用测压放液注射装置
CN202210171579.2 2022-02-24

Publications (1)

Publication Number Publication Date
WO2023147788A1 true WO2023147788A1 (fr) 2023-08-10

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PCT/CN2023/077392 WO2023147788A1 (fr) 2022-02-24 2023-02-21 Dispositif de mesure de pression, d'évacuation de fluide et d'injection pour remplacement de fluide céphalorachidien

Country Status (3)

Country Link
CN (1) CN114588494A (fr)
WO (1) WO2023147788A1 (fr)
ZA (1) ZA202306435B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114588494A (zh) * 2022-02-24 2022-06-07 中南大学湘雅医院 一种脑脊液置换用测压放液注射装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101011610A (zh) * 2007-01-31 2007-08-08 张�浩 脑脊液体外置换仪
US20110004158A1 (en) * 2007-11-02 2011-01-06 Luciano Mark G Device for increasing cerebral blood flow
CN109771801A (zh) * 2019-02-21 2019-05-21 于立刚 一种脑脊液引流置换注入压力监护治疗装置
CN214632144U (zh) * 2020-12-30 2021-11-09 四川三盛创新科技有限公司 一种简易颅内压监护仪
CN114588494A (zh) * 2022-02-24 2022-06-07 中南大学湘雅医院 一种脑脊液置换用测压放液注射装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101011610A (zh) * 2007-01-31 2007-08-08 张�浩 脑脊液体外置换仪
US20110004158A1 (en) * 2007-11-02 2011-01-06 Luciano Mark G Device for increasing cerebral blood flow
CN109771801A (zh) * 2019-02-21 2019-05-21 于立刚 一种脑脊液引流置换注入压力监护治疗装置
CN214632144U (zh) * 2020-12-30 2021-11-09 四川三盛创新科技有限公司 一种简易颅内压监护仪
CN114588494A (zh) * 2022-02-24 2022-06-07 中南大学湘雅医院 一种脑脊液置换用测压放液注射装置

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CN114588494A (zh) 2022-06-07

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