Drainage apparatus for leakage of cerebrospinal fluid after spinal operation and positive-negative-pressure drainage switching determining method

Abstract

The invention relates to a drainage apparatus for leakage of cerebrospinal fluid after spinal operation and a positive-negative-pressure drainage switching determining method. The drainage apparatus comprises a liquid storage bag and a drainage pipe, wherein one end of the drainage pipe is inserted into an inlet of the liquid storage bag, the other end is inserted into a cerebrospinal fluid accumulated position, the bottom of the liquid storage bag is connected with a liquid discharging pipe, the liquid discharging pipe is provided with a discharging control valve, and the drainage apparatus is characterized by also comprising a gravimeter and a specific gravity box for accommodating the accumulated fluid for measuring the specific gravity, the gravimeter is arranged inside the specific gravity box, the drainage pipe enters the liquid storage bag and is communicated with the inlet of the specific gravity box, and the top of the specific gravity box is provided with an opening and is communicated with an inner cavity of the liquid storage bag; and the drainage pipe is serially connected with a negative-pressure drainage ball. The drainage apparatus has the beneficial effects that while the drainage is realized, the cerebrospinal fluid can be primarily tested. By matching the switching determining method, the situation of the cerebrospinal fluid can be dynamically observed, the operation of nursing personnel is facilitated, and collection and detection procedures are simplified.

Description

technical field [0001] The invention relates to medical equipment, in particular to a drainage device for cerebrospinal fluid leakage after spinal surgery and a positive and negative pressure drainage switching judging method. Background technique [0002] Cerebrospinal fluid leak is a common complication of spinal surgery. Negative pressure drainage will be placed in the wound cavity after conventional spinal surgery to suck out the accumulated blood in the wound cavity and prevent incision infection and surgical adhesion. For patients with cerebrospinal fluid leaks, negative pressure drainage will also drain cerebrospinal fluid. The amount of cerebrospinal fluid produced in an adult is about 450ml / 24h, and when the drainage exceeds 100ml / 24h, the patient may experience headaches, vomiting, and even brain herniation. In clinical work, the speed of cerebrospinal fluid leakage is usually judged according to the color and drainage volume of the drainage fluid. When the drai...

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Problems solved by technology

However, these devices cannot effectively collect and initially detect th

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