Device for adjusting drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback

A feedback regulation, cerebrospinal fluid technology, applied in the field of medical devices, can solve the problems of affecting the recovery of patients, endangering the life of patients, poor measurement accuracy, etc., to reduce clinical hazards, ensure safety, and facilitate replacement.

Inactive Publication Date: 2014-05-07
THE WEST CHINA SECOND UNIV HOSPITAL OF SICHUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for patients with ventriculo-peritoneal drainage who cannot monitor intracranial pressure in real time through an external pressure sensor, due to the shortcomings of poor measurement accuracy and cumbersome methods in the existing non-invasive indirect intracranial pressure measurement instruments, most patients Can only be detected on imaging studies after severe intracranial hypotension due to overdrainage of cerebrospinal fluid and clinically app

Method used

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  • Device for adjusting drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback
  • Device for adjusting drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback
  • Device for adjusting drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback

Examples

Experimental program
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Embodiment 1

[0035] In this embodiment, the device for adjusting intraventricular cerebrospinal fluid drainage based on intracranial pressure feedback includes a pressure sensor 10, a drainage tube 1, a programmable switch 4, a loading plate 3, a first electronic control system, a first power supply, and a second electronic control system and a second power supply. The first electronic control system such as figure 1 As shown, it consists of a first single-chip microcomputer and a first wireless receiver and a first wireless transmitter respectively connected to the first single-chip microcomputer. The second electronic control system such as figure 1 As shown, it consists of a second single-chip microcomputer, a second wireless receiver connected to the second single-chip microcomputer, a second wireless transmitter, human-computer interaction buttons and a display. Both the first single-chip microcomputer and the second single-chip microcomputer are MSP430F135 single-chip microcomputer...

Embodiment 2

[0040] In this embodiment, the device for adjusting the drainage volume of cerebrospinal fluid in the ventricles based on intracranial pressure feedback is as follows: figure 2 , Figure 8 As shown, the difference from Example 1 is:

[0041] 1. A temperature sensor 19 and a specific gravity sensor 20 are added, and the temperature sensor and the specific gravity sensor are respectively connected with the first single-chip microcomputer through the data line 11, and are used to collect the temperature of the intracranial and the specific gravity of the cerebrospinal fluid, and collect the collected temperature The signal and the specific gravity signal are transmitted to the first single-chip microcomputer, the temperature sensor is a WRTP thermal resistance temperature sensor, and the specific gravity sensor is a specific gravity sensor of the model SG-601.

[0042] 2, the second electronic control system has increased warning light 22, warning buzzer 23, data memory, data o...

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Abstract

The invention discloses a device for adjusting the drainage volume of ventricular cerebrospinal fluid based on intracranial pressure feedback. The device comprises a pressure sensor, a drainage tube, a programmed switch, a loading plate, a first electronic control system, a first power supply, a second electronic control system and a second power supply, wherein the drainage tube consists of a ventricle segment, a controlled segment and an abdominal cavity segment in sequence; the programmed switch is arranged in a groove on the loading plate at the controlled segment of the drainage tube, and is used for switching on/off a path on which the cerebrospinal fluid enters the abdominal cavity through the drainage tube; the pressure sensor is used for collecting the intracranial pressure; the first electronic control system is used for controlling the state of the programmed switch according to the state of intracranial pressure and transmitting relevant information to the second electronic control system; the second electronic control system is used for receiving and displaying information of the first electronic control system and sending instructions to the first electronic control system.

Description

technical field [0001] The invention belongs to medical equipment, in particular to a device for automatically regulating the drainage volume of cerebrospinal fluid according to the intracranial pressure after neurosurgical ventricle-peritoneal shunt operation. Background technique [0002] Ventriculoperitoneal shunt surgery is a common surgical method for neurosurgery in the treatment of hydrocephalus. After ventriculo-peritoneal shunt surgery, by placing a drainage tube between the ventricles and the abdominal cavity, shunting the excess cerebrospinal fluid in the ventricles into the abdominal cavity can relieve the symptoms of intracranial hypertension in patients, but excessive drainage can lead to intracranial low pressure, causing cerebral palsy Neurological complications such as internal bleeding. Therefore, how to accurately adjust the cerebrospinal fluid shunt flow according to the real-time monitoring results of intracranial pressure is the key issue to ensure the...

Claims

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Application Information

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IPC IPC(8): A61M27/00A61M25/00A61B5/03
CPCA61M27/006A61B5/031A61B5/4836
Inventor 罗林丽周良学罗东黄蔚倪娟吴兰黄伟冯世苗
Owner THE WEST CHINA SECOND UNIV HOSPITAL OF SICHUAN
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