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Drainage control method and device

A technology of a control device and a control module, which is applied to wound drainage devices, suction devices, etc., can solve the problems of drainage process errors, affecting the accuracy and effectiveness of diagnosis, and being prone to delays.

Pending Publication Date: 2022-01-28
XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device does not have the function of monitoring the drainage volume, and the judgment of the drainage volume is based on manual reading of the scale of the drainage bag. Since the drainage speed of the ventricle is relatively slow, the existing drainage bag needs to be sucked because the liquid level in the drainage bag rises by 1 mm. There is a lot of liquid and it takes a long time, it is not easy to observe the change of liquid volume, and it is easy to cause delay
Some unexpected blockages cannot be accurately identified and eliminated, resulting in large errors in the drainage process, affecting the accuracy and effectiveness of diagnosis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment relates to a drainage control device. The device can control the drainage process based on the monitoring of the liquid flow state in the pipeline. Based on this, it can regulate the suction process of excess liquid in the body, making the suction process more flexible and controllable. and safe. Through suction, the body part that removes the suctioned fluid can be closer to the normal physiological state, and avoid excessive suction that makes the fluid in the suctioned part lower than the normal value or insufficient suction so that the fluid in the suctioned part is still higher than the normal value. Cerebrospinal fluid is due to the inability of the patient's brain to normally absorb some of the fluid produced by it or due to traumatic blood, which causes space-occupying lesions in the ventricle or posterior cranial fossa, which in turn leads to severe intracranial fluid such as frequent vomiting, physical weakness, and vision loss. Manifestations ...

Embodiment 2

[0032] This embodiment provides a drainage control method using the drainage control device described in Embodiment 1.

[0033] Preferably, the control module is based on the current intracranial pressure P 0 The differential pressure between the normal intracranial pressure is calculated at a predetermined time T 0 The preset flow rate V required to achieve normal intracranial pressure min , and generate P 0 The first correlation curve related to drainage velocity. The control module is based on the actual intracranial pressure P in the brain detected by the pressure sensor 1 and the actual drainage velocity V detected by the velocity sensor 1 Generate a second correlation curve. When there is a difference between the first correlation curve and the second correlation curve at the same time point, the control module updates the preset intracranial pressure P 0 The way to update the first correlation curve to update the preset drainage speed V min . The main reason for...

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PUM

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Abstract

The invention relates to a drainage control method and device. The device at least comprises: a catheter used for being inserted into the ventricle of a patient to make contact with the cerebrospinal fluid in the ventricle so as to extract the cerebrospinal fluid out of the body; a control module coupled with a sensor and capable of receiving the detection data sent by the sensor to control the liquid flow state in the catheter; and the sensor used for monitoring the liquid flow state in the catheter. According to the invention, the control module calculates a preset flow velocity Vmin required for reaching a normal intracranial pressure within a preset time based on a pressure difference between the intracranial pressure P0 at the current moment detected by the sensor and the normal intracranial pressure, generates a first correlation curve, generates a second correlation curve based on the actual intracranial pressure P1 in the brain detected by the sensor and the actual drainage speed V1 detected by the sensor, and when the first correlation curve and the second correlation curve have a difference at the same time point, updates the first correlation curve in a mode of updating the preset intracranial pressure P0 so as to update the preset drainage speed Vmin.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a drainage control method and device. Background technique [0002] Hydrocephalus is divided into two types, one is obstructive hydrocephalus, and the other is hydrocephalus caused by abnormal secretion, which can cause symptoms of ataxia, gait, obsession, and incontinence. If it is serious, external ventricular drainage can be used to improve cerebrospinal fluid circulation and brain pressure, and improve the symptoms caused by increased intracranial pressure due to hydrocephalus. Therefore, external ventricular drainage is mainly used to drain cerebrospinal fluid, which can be used to relieve hydrocephalus and improve various symptoms of patients caused by hydrocephalus. [0003] Since the production rate of cerebrospinal fluid is extremely slow, and the production rate of different patients or even the same patient under different physiological conditions is not consi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/00A61M27/00
CPCA61M27/006
Inventor 齐猛徐跃峤曲鑫王军田雅超陈文劲王宁
Owner XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI