CN201365919Y

CN201365919Y - Intracranial pressure dynamic monitoring device

Info

Publication number: CN201365919Y
Application number: CNU2009200232963U
Authority: CN
Inventors: 李卫
Original assignee: 李卫
Current assignee: Qingdao Municipal Hospital
Priority date: 2009-03-09
Filing date: 2009-03-09
Publication date: 2009-12-23
Anticipated expiration: 2019-03-09

Abstract

The utility model discloses an intracranial pressure dynamic monitoring device, which is provided for overcoming the shortcomings that in the prior art, cerebral subdural drainage or external ventricular drainage after a cerebral operation is used, the measurement of intracranial pressure by the way of visually measuring liquid level of a water column in a drainage hose is rough and inaccurate, and the back flow of drainage fluid is risky. The outer end of a cerebral subdural outer drainage hose or an intraventricular outer drainage hose inserted after the cerebral operation uses a connecting tube to connect with a liquid pressure gauge. As the measurement of the intracranial pressure of a patient is realized by connecting the outer end of the cerebral subdural outer drainage hose or the intraventricular outer drainage hose inserted after the cerebral operation with the liquid pressure gauge, the intracranial pressure of the patient can be directly displayed on the pressure gauge with precise data, and the measurement is carried out in a full-closed state, thereby being applicable to a wide range of intracranial pressures of the patient and being safe to use; when in use, the drainage hose which is externally connected with the pressure gauge can be retained on the head of the patient within a period of time, and the dynamic change on the pressure gauge is observed, thereby providing reliable basis for making a treatment plan for the patient.

Description

The intracranial pressure dynamic monitor

Technical field

This utility model belongs to medical apparatus, the specifically a kind of device that can monitor the intrinsic pressure dynamic change of patient's cranium brain constantly.

Background technology

Intracranial pressure is the whether important physical signs of operate as normal of reflection brain, for some critical cranium encephalopathy people, especially implement the patient of craniocerebral operations (comprise operation of opening cranium and EVD operation), often need carry out the dynamic monitoring of intracranial pressure, so that understand the variation of the state of an illness and the adjustment of instructing therapeutic scheme.The present mode of kinetic measurement intracranial pressure normally by inserting the drain flexible pipe after the operation of opening cranium under the dura mater of brain, or is undertaken by the drain flexible pipe of EVD.Concrete way is: when each survey cranium is pressed, the drain flexible pipe that will insert the cranium brain earlier is the measuring basis of drainage tube by the cornu frontale ventriculi lateralis of estimating, adjust the height and the level position of drain flexible pipe, normally the far-end of drainage tube is drawn high tens of centimetres by low bit reversal, the pressure liquid level of range estimation drain liquid water column in flexible pipe, because of there not being scale on the drainage tube, whole operation is entirely by range estimation manually, measurement error is obvious, and the result of measurement is coarse and inaccurate; In addition, the way that above-mentioned low bit reversal is drawn high also may be poured in down a chimney drain liquid into intracranial accidentally, has increased the chance of intracranial infection.

The utility model content

Technical problem to be solved in the utility model is, overcome in the prior art with drain or EVD under the dura mater of craniocerebral operations hindbrain, liquid level mode with water column in the range estimation drain flexible pipe is measured intracranial pressure, to estimate earlier before measuring that the measuring basis of finding out the drain flexible pipe is pretty troublesome, measured value is coarse and inaccurate, exist drain liquid to pour in down a chimney the shortcoming of danger, a kind of intracranial pressure dynamic monitor is provided.

In order to solve the problems referred to above that prior art exists, this utility model is to adopt following technical proposals to realize: under the dura mater of craniocerebral operations hindbrain or the Intraventricular external drainage flexible pipe outer end of inserting, be connected with the fluid pressure table with connection tube.

This utility model also has following technical characterictic:

In the inner chamber of described connection tube, being equipped with can fluid partitioning and transmit the traveller of pressure, in the cavity between traveller and the fluid pressure meter connector, is filled with the medium that can transmit pressure;

Nearly pressure tapping place in described connection tube is equipped with pressure transducer, and the outfan of pressure transducer is connected with microcomputer;

At the position between syringe needle outlet and traveller on the described connection tube, the switch valve of band sample tap, may command connection tube and sample tap break-make is installed;

Described switch valve is medical three-way valve.

Advantage of the present utility model and good effect are, the cranium brain of measuring patient is intrinsic pressure, be by under the dura mater of craniocerebral operations hindbrain or the Intraventricular external drainage flexible pipe outer end of inserting connect the fluid pressure table and realize, patient's cranium brain is intrinsic pressure can directly to demonstrate accurate data, the problem that does not exist drain liquid to pour in down a chimney on Pressure gauge; And this device is to carry out under full closeding state, can select for use to be fit to the Pressure gauge that high intracranial pressure patient uses, and the scope that is suitable for patient's intracranial pressure is big, uses as safe as a house.During measurement, can within a certain period of time external manometric drain flexible pipe be stayed patient head, the data that each time point reflected on operator on duty's observed and recorded Pressure gauge, be the dynamic change value of patient's intracranial pressure, provide reliable scientific basis for the medical worker formulates optimal therapeutic scheme to patient.

Description of drawings

Fig. 1 looks sketch map for master of the present utility model;

Fig. 2 is the partial enlarged drawing that traveller is installed in the connection tube among Fig. 1.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Among Fig. 1, under the dura mater of craniocerebral operations hindbrain or pipe outlet 2 places, outer end of the external drainage flexible pipe 1 that inserts of Intraventricular, be connected with fluid pressure table 5 with connection tube 4.

The left tube head of connection tube 4 and drain flexible pipe 1 are communicated with, and the right-hand member of connection tube 4 is communicated with the joint 8 of Pressure gauge 5.Like this, be in the complete closed state between cranium brain and the Pressure gauge 5, the cerebrospinal fluid of drawing can directly demonstrate accurate data on Pressure gauge 5, can observe patient's intracranial pressure situation of change at any time accurately, safely, so that formulate suitable therapeutic scheme.

If directly be connected pressure measurement with Pressure gauge 5 with the pipe outlet 2 of drain flexible pipe 1, Pressure gauge 5 can only be disposable use, perhaps will carry out thorough disinfection to Pressure gauge 5 before repeated use, to avoid the cross infection between the patient.Because fluid pressure 5 tables belong to precision instrument, sterilization is the thing that bothers very much after each the use, and does not do a good job and also can destroy the precision of instrument; If Pressure gauge as disposable use, will be caused certain waste, the operation cost is too big;

At the stage casing of connection tube 4 inner chamber a traveller 4.1 (referring to Fig. 2) is installed, traveller 4.1 can be under fluid pressure promotes, movable in cylinder as piston, move left and right in connection tube 4 inner chambers, and the inner chamber of connection tube 4 is divided into left chamber 4.2 and right chamber 4.3, the cerebrospinal fluid 4.4 that traveller 4.1 will be drawn from drain flexible pipe 1 intercepts in left chamber 4.2, and can not flow to right chamber 4.3, thereby has avoided pathogenic bacteria in the cerebrospinal fluid 4.4 to the pollution of Pressure gauge 5; Under cerebrospinal fluid 4.4 thrusts of drawing, traveller 4.1 is the medium 4.5 by filling in the right chamber 4.3 again, transfers the pressure to Pressure gauge 5 simultaneously, and data presented is exactly the exact value of patient's intracranial pressure on the Pressure gauge 5.The media 4.5 of turning right and filling in the chamber 4.3 can be gas, but preferably with the little liquid filling of compressibility, medium 4.5 can inject in the right chamber 4.3 with needle tubing.

The connection tube 4 of band traveller 4.1 can use low price, the simple medical plastic manufacturing of manufacturing, also can be with other suitable medical material manufacturing.

For the ease of illness analysis, need be with patient when the continuous situation of change of intracranial pressure is all noted in some time periods, joint 8 places of nearly Pressure gauge 5 in described connection tube 4, pressure transducer 6 is installed, the outfan of pressure transducer 6 is connected with the external tapping of microcomputer 7, like this, the continuous situation of change of patient's intracranial pressure just can all be stored in the microcomputer.

For convenience of drainage procedure and sample examination, at the position between outlet 2 of the pipe of drain flexible pipe 1 and traveller 4.1 on the described connection tube 4, the switch valve 3 of band sample tap 3.1, may command connection tube 4 and sample tap 3.1 break-makes is installed, and described switch valve 3 can be selected medical three-way valve.

In addition, existing a kind of intracranial pressure single measurement mode commonly used is the lumbar puncture art, and its principle directly links to each other lumbar puncture needle with the transverse tube of both ends open " L " shape pipe, observes cranium according to the height of vertical tube high scale water column and presses.Because the vertical tube of existing " L " shape pipe is suitable for reading to be open, and the vertical tube height has only 300mm, for the patient of intracranial pressure greater than 300mm, use " L " shape pipe to survey intracranial pressure, cerebrospinal fluid can overflow from vertical tube is suitable for reading, the pressure that overflows the back intracranial reduces suddenly, can bring life danger to patient, and the intracranial pressure of measuring simultaneously is also inaccurate; Also can make proliferation of germs after cerebrospinal fluid overflows, cause cross infection.

It is technical that this utility model also can be applied in above-mentioned lumbar puncture measurement intracranial pressure, promptly in the syringe needle exit of puncture needle, be connected with the device of carrying liqs Pressure gauge 5, between the syringe needle outlet of Pressure gauge 5 and puncture needle, its inner chamber is installed has traveller 4.1, disposable connection tube 4, make cerebrospinal fluid be in closed state all the time like this, can overcome prior art when the very high patient of intracranial pressure does the single pressure measurement on one's body, use that open " L " shape pipe suitable for reading is dangerous, inaccurate, cerebrospinal fluid overflow after due to illness the bacterium diffusion cause the problem of cross infection; Disposable connection tube 4, the traveller 4.1 in its pipe can transmit pressure and isolate cerebrospinal fluid, but makes cerebrospinal fluid not enter just pressure measurement in the Pressure gauge 5, when having avoided giving other patients to re-use this Pressure gauge 5, is repeated use disinfectant trouble.

Claims

1, a kind of intracranial pressure dynamic monitor is characterized in that: under the dura mater of craniocerebral operations hindbrain or the Intraventricular external drainage flexible pipe outer end of inserting, be connected with the fluid pressure table with connection tube.

2, intracranial pressure dynamic monitor as claimed in claim 1, it is characterized in that: in the inner chamber of described connection tube, being equipped with can fluid partitioning and transmit the traveller of pressure, in the cavity between traveller and the fluid pressure meter connector, is filled with the medium that can transmit pressure.

3, intracranial pressure dynamic monitor as claimed in claim 1 or 2 is characterized in that: nearly pressure tapping place in described connection tube, pressure transducer is installed, and the outfan of pressure transducer is connected with microcomputer.

4, intracranial pressure dynamic monitor as claimed in claim 1 or 2 is characterized in that: at the position between syringe needle outlet and traveller on the described connection tube, the switch valve of band sample tap, may command connection tube and sample tap break-make is installed.

5, intracranial pressure dynamic monitor as claimed in claim 4 is characterized in that: described switch valve is medical three-way valve.