CN2234776Y

CN2234776Y - Closed ventricular external drainage device

Info

Publication number: CN2234776Y
Application number: CN 95235313
Authority: CN
Inventors: 徐淑军; 张庆林; 郭洪志; 张晶
Original assignee: SHANDONG HOSPITAL
Current assignee: SHANDONG HOSPITAL; Affiliated Hospital of Shandong University of Traditional Chinese Medicine
Priority date: 1995-12-22
Filing date: 1995-12-22
Publication date: 1996-09-11
Anticipated expiration: 2005-12-22

Abstract

The utility model relates to a medical device, belonging to the device which is special for operations for the drainage of cerebrospinal fluid. The utility model has the technical proposal that the device is provided with a liquid inlet tube (1) and a liquid outlet tube (6); the liquid inlet tube (1) and the liquid outlet tube (6) are connected with a bump bag (2); one end of the liquid outlet tube (6) is connected with a drainage bag (9); a pressure valve (7) is arranged on the liquid outlet tube (6); one end of the liquid inlet tube (1) is inserted in the bump bag (2); one end of the liquid outlet tube (6) is inserted in a filter screen (4) in the bump bag (2). The utility model has the advantage of avoiding the ultra low of intracranial pressure, the pneumatosis of the inner part of ventricle and the infection of the ventricle which are caused by the invitro drainage of the ventricle.

Description

Airtight external ventricular drainage device

This utility model relates to medical apparatus and instruments, is a kind of apparatus that is exclusively used in the drainage of cerebrospinal fluid operation.

Existing drainage of cerebrospinal fluid apparatus generally is divided into two kinds: a kind of is that two pipes link drain; Another kind is a liquid feeding bottle again after two pipes connect.The deficiency that these apparatuses in use exist: contact with air is open, easily cause patient infection; Be prone to cerebrospinal fluid and air inversion enters intracranial; Cranium is pressed unstable, is prone to low intracranial pressure etc.

The purpose of this utility model is, a kind of airtight buffer-type external ventricular drainage device is provided, make it become closed structure, can ICV pressure be maintained on the certain level by adjusting pressure valve, and preventing the excessive drain of spinal fluid, the dangerous phenomenon that have that the intracranial pressure avoided is low excessively, Intraventricular pneumatosis and the ventricles of the brain infects occurs.

The technical solution of the utility model is: this device has liquid-in pipe (1) and drain pipe (6), and liquid-in pipe (1) and drain pipe (6) connect with bumping bag (2), and drain pipe (6) one ends and drainage bag (9) connect.Drain pipe (6) is gone up setting pressure valve (7), and liquid-in pipe (1) one end inserts in the bumping bag (2), and drain pipe (6) one ends insert in the filter screen (4) that is contained in the bumping bag (2).

Description of drawings: accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is bumping bag B-B cutaway views in the accompanying drawing 1.

The contrast accompanying drawing is described further this utility model:

Among the figure, (1) is liquid-in pipe, its A termination ventricular drainage tube, the other end inserts in the bumping bag (2), and liquid-in pipe (1) and drain pipe (6) connect with bumping bag (2), and drain pipe (6) one ends and drainage bag (9) connect, drain pipe (6) is gone up setting pressure valve (7), and this valve is that the crack is closed.When this utility model uses, liquid-in pipe (1) the A end and the ventricles of the brain are connect, cerebrospinal fluid is introduced in the bumping bag (2) by liquid-in pipe (1), owing in the bag filter screen (4) is housed, cerebrospinal fluid, is imported cerebrospinal fluid in the drainage bag (9) by drain pipe (6) with blood clot with after separating out the fibrin filtration through filter screen (4).The effect of bumping bag (2) is: when of short duration rising appears in patient's intracranial pressure, the too much drain of cerebrospinal fluid may occur, intracranial pressure is crossed when hanging down, and can avoid the too much drain of cerebrospinal fluid by the expansion of surge chamber and interior cerebrospinal fluid backflow thereof, keeps the stable of intracranial pressure.(5) are connecting pieces among the figure, and (8) are valves.

The effect of the slit valve that is adopted in this device can guarantee the cerebrospinal fluid one-way flow when ventricular drainage, make ICV pressure maintain certain level by the height of adjusting valve and drainage bag simultaneously and prevent the excessive drain of cerebrospinal fluid.(3) and (10) are to stop up among the figure, are used to bleed off a bag interior thing.

Because the utility model is obturator, and is provided with bumping bag and pressure valve (7) Structure, so, when ventricular drainage, can guarantee the cerebrospinal fluid one-way flow, in the ventricles of the brain Pressure can maintain certain level, and prevent the excessive drainage of cerebrospinal fluid. This practicality Novelly have that the intracranial pressure that can avoid external ventricular drainage to occur is excessively low, pneumatosis in the ventricles of the brain And the advantage of ventricles of the brain infection.

Claims

1, sealing external ventricular drainage device, it has liquid-in pipe (1) and drain pipe (6), it is characterized in that: liquid-in pipe (1) and drain pipe (6) connect with bumping bag (2), and drain pipe (6) one ends and drainage bag (9) connect.

2, according to the described airtight external ventricular drainage device of claim 1, it is characterized in that: drain pipe (6) is gone up setting pressure valve (7).

3, according to the described airtight external ventricular drainage device of claim 1, it is characterized in that: liquid-in pipe (1) one end inserts in the bumping bag (2), and drain pipe (6) one ends insert in the filter screen (4) that is contained in the bumping bag (2).