CN201044828Y

CN201044828Y - An exterior transposing instrument for cerebrospinal liquid

Info

Publication number: CN201044828Y
Application number: CNU2007200494793U
Authority: CN
Inventors: 徐强; 张�浩; 禤鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-21
Filing date: 2007-03-21
Publication date: 2008-04-09
Anticipated expiration: 2017-03-21

Abstract

A substitution therapeutic apparatus for outwards conducing cerebrospinal fluid comprises a double-cavity-tube outer connecting tube (1), a pressure sensor (2), roller rolling pressure pumps (4) and a central controller (3), wherein the double cavities disposed at the tail end of the outer connecting tube (2) are respectively connected with conduction and lavation branch guide tubes (5, 6), the two branch guide tubes are respectively and outwards connected to a liquid storage bottle and a fluid infusion bottle (8, 9) after passing the roller rolling pressure pumps (4). A pressure-measuring branch (7) diverges from the middle portion of the conduction branch guide tube (5) via a branch joint (11), the rear end of the pressure-measuring branch is in connection with the pressure sensor (2) inside which a sensor separating protector (12) is installed, the pressure sensor (2) outputs to the central controller (3). The utility model separates the conduction from lavation to be independent via the double-cavity-tube outer connecting tube (1), the conduction and lavation branch guide tubes (5, 6), and two roller rolling pressure pumps (4), avoiding the occurrence that the conduced waste cerebrospinal fluid is repeatedly poured into a cranial cavity. The sensor separating protector (12) enables the pressure sensor (2) to be capable of being used repeatedly, thereby the cost is reduced. The special designed single-way roller rolling pressure pumps (4) enables the operation of exchanging tubes to be very convenient and simple, and the central controller (13) ensures that the operation is automatic and easy to be popularized and utilized.

Description

A kind of cerebrospinal fluid external displacement instrument

Technical field

This utility model relates to a kind of cerebrospinal fluid external drainage replacement therapy device, especially relates to a kind of intelligent cerebrospinal fluid external displacement purging system, is clinical monitoring and treatment intracranial illness patient's Medical Instruments.

Background technology

The drain of cerebrospinal fluid, perfusion are meant respectively from human body and discharge cerebrospinal fluid, import medicine, liquid or the former human body cerebrospinal fluid after exterior washings, filtration to human body, displacement is meant the combination of drain and perfusion operation, promptly uses repeatedly drain and dabbling combination that cerebrospinal fluid is cleaned up.The method of traditional drainage of cerebrospinal fluid is to allow the external ventricle drainage pipe hanger in certain height, naturally flow out the pathologic cerebrospinal fluid, this method causes the phenomenon of siphon easily, can't be regularly, quantitatively, the automatic discharge cerebrospinal fluid of level pressure, displacement is also finished with the syringe one-in-and-one-out by artificial, waste time and energy, also can't understand the situation of change of intracranial pressure at that time, risk is very high.The Chinese patent communique once disclosed " a kind of cerebrospinal pressure monitoring and automatic flushing instrument " (patent No. ZL00227776.X), comprise box-shaped enclosure, puncture needle, pressure-measuring pipe, pressure transducer and ICP (monitor intracranial pressure monitor) (also being CSF drain displacement injection pressure monitoring controller), this patent has double pump and two schemes of single pump, double pump scheme cost is higher, the pump of single pump scheme is an one-way pump, the forward and backward pipeline of one-way pump all has branch, and four electrodynamic valves are contained in respectively to link in twos in four branches realizes drain, dabbling replacement.No matter this scheme is double pump or single pump, a weak point is all arranged: owing to drain, perfusion all are by same conduit, so when replacing the displacement of drain, perfusion operation, in conduit, always have the useless cerebrospinal fluid that is much come out drain and poured into back again in the cranial cavity again by drain; Also have, the pressure transducer of this design directly is communicated with the drainage of cerebrospinal fluid passage, makes pressure transducer disposablely to use, and cost is higher; In addition, quite complicated loaded down with trivial details length consuming time polluted easily when the pipeline in drain displacement pipeline and the instrument was installed.

The utility model content

First purpose of the present utility model just provides a kind of useless cerebrospinal fluid that can avoid drain to come out fully and is poured into back cerebrospinal fluid external displacement instrument in the cranial cavity again again.

In addition, cerebrospinal fluid external displacement instrument of the present utility model, pressure transducer also can repeatedly use, further reduce the cost, and the installation pipeline simple and fast, can not pollute.

For reaching above-mentioned first purpose, cerebrospinal fluid external displacement instrument of the present utility model comprises outer connecting pipe, pressure transducer, controlled micro pump and central controller; It is characterized in that: described outer connecting pipe is a double lumen tube, and its tail end two-chamber is connected to drain, lavation brasnch conduct respectively, and drain, lavation brasnch conduct are respectively by external liquid containing bottle, fluid infusion bottle behind the controlled micro pump of pressure-pipe type; Told pressure measurement branch by three way cock or three-way cock joint in the middle of the drain branch, its rear end is connected to pressure transducer, and pressure transducer exports central controller to; Described central controller has control line to be connected respectively with pressure transducer, controlled micro pump.

On the basis of abovementioned technology, this utility model also can be done further improvement:

Described controlled micro pump is unidirectional roller rolling press pump.

In the described pressure measurement branch pick off Isolation protector is housed.

Described pick off Isolation protector is one section path trachea that is full of gas, one termination pressure measurement branch, another termination pick off.That is to say the pipe isolation of one deck air insulated thin film with liquid and back air section, fixed sensing is joined on the Guan Caiyu instrument of back air section.

The preceding transfusion filter that passes through of described lavation branch's access fluid infusion bottle.

Beneficial effect: cerebrospinal fluid external displacement instrument of the present utility model, outer connecting pipe, drain, lavation brasnch conduct and two unidirectional roller rolling press pumps by double lumen tube, with drain, lavation is separate comes, the useless cerebrospinal fluid of having avoided drain to come out is fully poured into back the generation of situation in the cranial cavity again again; The pick off Isolation protector makes pressure transducer repeatedly to use, and has reduced cost; It is very simple and easy to do that the unidirectional roller rolling press pump of particular design makes the replace tubes operation install, and central controller makes that operation automation is easy to promote the popularization use.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further specified.

Fig. 1 is the theory of constitution sketch map of this utility model embodiment.

Among the figure: 1-outer connecting pipe, 2-pressure transducer, 3-controller, 4 unidirectional roller rolling press pumps, 5-drain branch; 6-lavation branch, 7-pressure measurement branch, 8-liquid containing bottle, 9-fluid infusion bottle; the 10-control line, three way cock behind the 11-outer connecting pipe, 12-pick off Isolation protector, the 14-filter of infusing.

The specific embodiment

Can see that from Fig. 1 the cerebrospinal fluid external displacement instrument of this utility model embodiment comprises outer connecting pipe 1, pressure transducer 2, unidirectional roller rolling press pump 4 and central controller 3; Outer connecting pipe 1 is a double lumen tube, promptly be divided into two chambeies in the pipe, isolation does not communicate mutually, its tail end two-chamber is connected to drain,

lavation brasnch conduct

5,6 respectively, by the external liquid containing bottle in pressure-pipe type controlled unidirectional roller rolling press pump 4 backs, fluid infusion bottle 8,9, lavation branch passes through transfusion filter 14 before inserting fluid infusion bottle 9 respectively for drain,

lavation brasnch conduct

5,6; Drain branch to have pressure measurement branch 7 middle being divided into by three way cock 11, and the termination pressure transducer 2 thereafter, and pressure transducer 2 exports central controller 3 to; Central controller 3 has control line 10 to be connected respectively with pressure transducer 2, controlled micro pump 4.

Pick off Isolation protector 12 is equipped with in pressure measurement branch 7; this routine pick off Isolation protector 12 is actually one section small diameter tube; the inside is full of air; that is to say of the pipe isolation of one deck air insulated thin film with liquid and back air section; fixed sensing 2 is joined on the Guan Caiyu instrument of back air section; so the pressure of cerebrospinal fluid can be delivered to pressure transducer 2 by air pressure but can not touch; make pressure transducer 2 can repeatedly use (septate pick off Isolation protector in the middle of certainly, also can being).

The pipe of putting of this example is to place pipe through waist, but also puts pipe through the ventricles of the brain, and this does not give unnecessary details.

On the central controller 3 computer chip is housed, peripheral hardware display operation screen can carry out Computerized intelligentization control and demonstration automatically according to menu.One-way pump 4 can accurately be counted the discrepancy amount, is connected by control line 10 with controller 3, and by the rotating speed of controller 3 according to enumeration data control pump 4; The fluid pressure of cerebrospinal fluid (CSF) is delivered to pressure transducer 2 after by Isolation protector 12, and pressure transducer 2 changes pressure into the signal of telecommunication and is sent to controller 3, and can show showing on the control panel.

When the needs drain, perfusion roller rolling press pump work is then controlled in 4 work of controller 3 control drain roller rolling press pumps when needing perfusion.If then alternately drain, perfusion get final product in the time of will replacing.

Claims

1. a cerebrospinal fluid external displacement instrument comprises outer connecting pipe (1), pressure transducer (2), the controlled micro pump of pressure-pipe type (4) and central controller (3); It is characterized in that: described outer connecting pipe (1) is a double lumen tube, its tail end two-chamber is connected to drain, lavation brasnch conduct (5,6) respectively, and drain, lavation brasnch conduct (5,6) are respectively by the external liquid containing bottle in the controlled micro pump of pressure-pipe type (4) back, fluid infusion bottle (8,9); Has told pressure measurement branch (7) by three way cock or three-way cock joint (11) in the middle of the drain brasnch conduct (5), termination pressure transducer (2) thereafter, pressure transducer (2) exports central controller (3) to; Described central controller (3) has control line (10) to be connected respectively with pressure transducer (2), controlled micro pump (4).

2. cerebrospinal fluid external displacement instrument according to claim 1 is characterized in that: described controlled micro pump (4) is unidirectional roller rolling press pump.

3. cerebrospinal fluid external displacement instrument according to claim 2 is characterized in that: pick off Isolation protector (12) is housed in the described pressure measurement branch (7).

4. cerebrospinal fluid external displacement instrument according to claim 3 is characterized in that: described pick off Isolation protector (12) is one section path trachea that is full of gas.

5. cerebrospinal fluid external displacement instrument according to claim 1 is characterized in that: the preceding transfusion filter (14) that passes through of described lavation branch's access fluid infusion bottle.