CN2189444Y

CN2189444Y - Cerebrospinal pressure detcting device

Info

Publication number: CN2189444Y
Application number: CN 93221822
Authority: CN
Inventors: 王晓; 杨志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-14
Filing date: 1993-08-14
Publication date: 1995-02-15
Anticipated expiration: 2003-08-14

Abstract

The utility model relates to an improvement for medical equipment which is used for the detection of the pressure of cerebrospinal liquids in medicine clinic. The cerebrospinal liquid pressure detecting device is composed of a puncture needle body, a drainage control valve, a pressure sensor, a photoelectric counter and an electronic control system. The detecting device can achieve the detection of the pressure of cerebrospinal liquids and observe the color change of cerebrospinal liquids under the condition of no drainage for an invertebral tube. When detecting the safety value of the pressure of cerebrospinal liquids, the utility model can directly drainage, collect cerebrospinal liquid specimen and achieve the detection of drop number.

Description

Cerebrospinal pressure detcting device

This utility model is the utensil that is used to measure cerebrospinal pressure, belongs to medical instruments field.

The detection of cerebrospinal pressure is to measure cerebral, and the collect cerebrospinal fluid specimen its objective is to be used for analyze the state, and identifying disease is for the formulation for the treatment of the disease scheme provides foundation.The method that is used for measuring cerebral at present is by thecal puncture, with drainage of cerebrospinal fluid in pressure-measuring pipe, according to cerebrospinal fluid in the unit interval drip number and in pipe liquid level determine cerebral, determine the state of an illness according to color and luster, turbidity and the viscosity of cerebrospinal fluid.Also finish simultaneously the collection of samples of CSF.But this method needs drain, and under the situation that patient's cerebral increases (as diseases such as cerebral edema, cerebral hemorrhage, the cerebral tumors), the drain meeting causes patient overworked dead, and drain bans use of, yet pressure measurement at this moment has more practical significance to instructing rescue and treatment critical patient.Therefore, as why not carrying out drain and can record the focus that cerebral is medical circle research.

The purpose of this utility model provides the novel cerebrospinal pressure force detector that a kind of not drain just can record cerebral.

This utility model mainly is made up of puncture needle body, drain control valve, manograph, enumerator, electronic circuit and several parts of character display, the needle handle posterior transversal of puncture needle body of the present utility model connects with the drain control valve, and drain control valve lower end connects the vertical tail end in needle handle rear portion with enumerator and connects for detachable pegging graft with manograph for pegging graft; The lead of drawing of enumerator and manograph joins with electronic circuit respectively.

This detector puncture needle body comprises syringe needle and needle handle, and needle handle is to be made by rigid transparent material, with the syringe needle pressing be one, also can be made into syringe needle and detachably connect; Needle handle can be used as the observation fenestra at the mid portion that connects with syringe needle and drain control valve, is used for observing the cerebrospinal fluid change color, and this observation fenestra also has amplification.

This utility model detector also comprises a drain control valve, is two hand-operated valves in three holes, and when handle was in primary importance, needle handle communicated with manograph, is used for pressure measurement and observes spinal fluid color etc.; When the handle half-twist was in the second position, needle handle communicated with enumerator, was used for drain and measures dripping number.

This utility model detector also comprises a manograph, and this manograph is positioned at the needle handle tail end, with needle handle for detachably to connect.Pressure cell is housed in the manograph and draws lead, lead-out wire and electronic circuit join.

This electronic circuit by detect to amplify, voltage ratio, digital-to-analogue conversion, decoding and numeral show etc. and partly to form, and can finish the detection of cerebrospinal pressure.

This utility model detector also comprises an enumerator, and this enumerator upper end joins with drain control valve socket, the lower end aligned test tube, and middle part one side is installed a light-emitting component, and opposite side is installed a light-sensitive element; Wherein light-emitting component lead-out wire and high-purity power supply join, as the light source of light-sensitive element; The light-sensitive element lead-out wire with by monostable trigger, time ratio, digital-to-analogue conversion, decoding and numeral show that the electronic circuit that several parts are formed joins, and finishes drain and drips several detections.

This utility model cerebrospinal pressure force detector adopts not drain pressure measurement, advanced technology, and easy to use, safe, pressure measurement is accurate, for brain high pressure patient's pressure measurement and clinical treatment provides reliable guarantee.

This utility model has following accompanying drawing.

Fig. 1 is this utility model cerebrospinal pressure detector arrangement sketch map.

Fig. 2 is an electronics block diagram.

Wherein: the 1--syringe needle; The 2--needle handle; 3--drain control valve; The 4--pressure cell; The 5--manograph; The 6--light-emitting component; The 7--enumerator; The 8--test tube; The 9--light-sensitive element.

Using method below in conjunction with accompanying drawing narration this utility model cerebrospinal pressure force detector: manograph (5) sum counter (7) of having pegged graft before the use, connect circuit, drain control valve (3) is placed primary importance.Connect the conventional puncture procedure of implementing.This utility model syringe needle is the rustless steel syringe needle, can make different size by existing specification.After needle body enters spinal cavity, have micro-csf flow to needle handle (2), observe fenestra by needle handle (2) and observe the variation of cerebrospinal fluid colourity.This moment, cerebrospinal fluid produced pressure to the manograph (5) of needle handle (2) afterbody, converted pressure to the signal of telecommunication after electronic circuit amplifies, compares and carries out digital-to-analogue conversion by pressure cell (4), directly demonstrated the cerebral data by character display.If pressure measurement shows cerebral in safety range, and cerebrospinal fluid colourity is normal, just drain control valve (3) handle half-twist can be placed the second position, can implement drain, and cerebrospinal fluid is captured in the test tube (8).When cerebrospinal fluid dripped enumerator, the light source that light-sensitive element (9) receives light-emitting component (6) is intercepted and is produced pulse signal, the input electronic circuit is directly shown the number of drops in the unit interval by character display, drips to close drain control valve (3) after counting up to and get final product.When if the numeral of manograph (5) is shown as high pressure, then do not implement drain.Can guarantee the life security when patient detects cerebrospinal pressure like this.

Claims

1, this utility model cerebrospinal pressure force detector, relate to and medically be used for the medical apparatus and instruments that cerebrospinal pressure detects, form by puncture needle body, drain control valve, manograph, enumerator, electronic circuit and several parts of character display, it is characterized in that: the posterior transversal of the needle handle (2) of puncture needle body connects with drain control valve (3), and drain control valve (3) lower end connects for pegging graft with enumerator (7); The vertical tail end in needle handle (2) rear portion is pegged graft with manograph (5) and is connected; The lead of drawing of enumerator (7) and manograph (5) joins with electronic circuit respectively.

2, cerebrospinal pressure force detector according to claim 1, it is characterized in that: the needle handle of this puncture needle body (2) is to be made by rigid transparent material, can be one with syringe needle (1) pressing, also can be made into and dismountable connection of syringe needle (1), needle handle (2) can be used as the observation fenestra at the mid portion that connects with syringe needle (1) and drain control valve (3).

3, cerebrospinal pressure force detector according to claim 1 is characterized in that: this drain control valve (3) is two hand-operated valves in three holes, and when handle was in primary importance, needle handle (2) centre bore communicated with manograph (5); When the handle half-twist was in the second position, needle handle (2) centre bore communicated with enumerator (7).

4, cerebrospinal pressure force detector according to claim 1 is characterized in that: manograph (5) is equipped with pressure cell (4), and its lead-out wire and electronic circuit join.

5, cerebrospinal pressure force detector according to claim 4, it is characterized in that: the electronic circuit that joins with pressure cell (4) amplifies by detecting, voltage ratio, digital-to-analogue conversion, decoding and numeral show etc. and partly to form, and can finish the detection of cerebrospinal pressure.

6, cerebrospinal pressure force detector according to claim 1, it is characterized in that: this enumerator (7) upper end joins with drain control valve (3) socket, the lower end aligned test tube, middle part one side is installed a light-emitting component (6), opposite side is installed a light-sensitive element (19), and its lead-out wire and electronic circuit join.

7, cerebrospinal pressure force detector according to claim 5, it is characterized in that: light-emitting component (6) joins with the high-purity power supply, light-sensitive element (9) with by monostable trigger, time comparator, digital-to-analogue conversion, decoding and numeral show that the electronic circuit that several parts are formed joins, and finishes drain and drips several detections.