CN203576487U

CN203576487U - Central venous pressure zeroing device using light beams

Info

Publication number: CN203576487U
Application number: CN201320711564.7U
Authority: CN
Inventors: 王融融
Original assignee: QINGPU BRANCH OF ZHONGSHAN HOSPITAL FUDAN UNIVERSITY
Current assignee: QINGPU BRANCH OF ZHONGSHAN HOSPITAL FUDAN UNIVERSITY
Priority date: 2013-11-12
Filing date: 2013-11-12
Publication date: 2014-05-07
Anticipated expiration: 2023-11-12

Abstract

The utility model relates to a central venous pressure zeroing device using light beams. The central venous pressure zeroing device comprises a device body, a clamping groove used for holding an infusion tube is formed on the front face of the device body, and two reading rulers are formed at portions, on two sides of the clamping groove, of the device body respectively. The device is characterized in that light sources are arranged on the left side and right side of the device body respectively, and when the device is in use, light beams emitted out by the light sources are perpendicular to long axes of the reading rulers and a focal point of each light beam and the zero position of the corresponding reading ruler are collinear. The device is provided for determining the zero position in detection of CVP (central venous pressure), time and labor are saved, errors in visual inspection can be avoided, and medical and nursing safety can be guaranteed for patients.

Description

A kind of central venous pressure balancing that utilizes light beam

Technical field

This utility model relates to a kind of central venous pressure balancing that utilizes light beam, accurately determines the device of dead-center position during for nursery work measuring center venous pressure (being designated hereinafter simply as CVP).

Background technology

During current clinical measurement CVP, mainly contain two kinds of methods, the first is by pressure transducer or transducer, is applicable to the patient that extremely critical need continue to monitor circulatory function, carries out for general in ICU and operating room.

Second method is hand dipping, is also that current clinical practice is more, carries out the method that scope is wider, no matter all generally application of ICU or public ward.Its method is first to determine dead-center position: use transfusion device to connect normal saline, after aerofluxus with put pipe place and be connected, by three way cock, flow into the empty liquid-transport pipe-line that another communicates with atmosphere, after liquid level rises to suitable height, make the liquid level automatic descending in pipeline extremely static, then measure the height of fluid column with a yardstick, be the CVP value recording.Hand dipping method is simple, inexpensive, required by thing convenient sources (of one bag of normal saline, blood exchange transfusion set's one pair, transfusion device one pair, drip stand), the advantage such as easy to operate and applied widely, as the main method of clinical measurement CVP.But the method is subject to the interference of anthropic factor, easily cause error.

Summary of the invention

The instrument of zeroing when the purpose of this utility model is to provide a kind of CVP of survey, to get rid of the error of estimating zero point.

In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of central venous pressure balancing that utilizes light beam, comprise device body, front at device body is formed with one for placing the draw-in groove of tube for transfusion, at device body, be positioned in the part of draw-in groove both sides and be formed with respectively a reading ruler, it is characterized in that: the left and right sides at device body is respectively equipped with light source, during use, the light beam that light source sends and its focus vertical with the major axis of reading ruler becomes a horizontal line with 0 position of this reading ruler.

Preferably, described light source is connected at the switch on described device body, in described device body, is provided with battery case, by the battery in battery case, is described light source power supply.

Preferably, at the back side of described device body, be provided with fixed mount.

Preferably, be provided with fixedly leaf of two tube for transfusions in the front of described device body, two tube for transfusions fixedly leaf lay respectively at top and the below of the described reading ruler of homonymy.

As stated in the Background Art, be by nurse, to estimate to determine the position at zero point substantially at present clinically.And measure CVP, zeroing is a vital step, will directly affect the accuracy of measurement result.For guarantee the accurate of reading as far as possible, reduce error, nurse must keep half crouch, sight is patrolled shuttle to align zero point back and forth in pressure measurement pipeline zero point and patient's midaxillary line the 4th rib level, but because patient's midaxillary line is with the distance between patient's arm, a part of bed, drip stand also between pressure measurement pipeline, be easy to cause measurement error.This utility model determines that dead-center position provides a kind of instrument when surveying CVP, time saving and energy saving, and can avoid the error of range estimation, ensures patient medical and nursing safety.

Accompanying drawing explanation

The front view of a kind of central venous pressure balancing that Fig. 1 provides for this utility model;

The rearview of a kind of central venous pressure balancing that Fig. 2 provides for this utility model.

The specific embodiment

For this utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.

As shown in Figures 1 and 2, this utility model provides a kind of central venous pressure balancing, comprises device body 1, draw-in groove 2, reading ruler 3 and reading ruler 5, light source 4, fixed mount 6, tube for transfusion fixedly leaf 7, switch 8 and battery case 9.

For placing the draw-in groove 2 of tube for transfusion, opening in the front of device body 1, at reading ruler 3 and the reading ruler 5 of the both sides of draw-in groove 2 band scale, is 0-30cm, after pressure measurement finishes, can directly carry out reading.Upper and lower at reading ruler 3 and reading ruler 5 respectively has fixedly leaf 7 of a tube for transfusion, on maximum and under least count, does not affect reading respectively, is fixed after putting into draw-in groove 2 for tube for transfusion, keeps the smooth, distortionless of tube for transfusion.Respectively there are a light source 4 and switch 8 in both sides at device body 1, light source 4 is controlled by switch 8, and light source 4 can be laser, can be also infrared ray, the focus of the light beam that sends becomes a horizontal line with 0 position of reading ruler 3 or reading ruler 5, and vertical with the major axis of reading ruler 3 or reading ruler 5.Fixed mount 6 can be fixed on this device on an other drip stand, upper-lower position scalable.In battery case 9, battery is installed, for spotlight 4 provides power supply.

While utilizing this utility model to measure CVP, first determine dead-center position (it is example that the horizontal position of take is measured CVP):

1, this utility model is fixed on drip stand, does not need too tightly, fixing a little, it is not slided up and down.

2, shake level bed head, make patient flat sleeping, advise patient's both hands to encircle, to expose midaxillary line the 4th intercostal (right atrium level) position.

3, opening switch 8, make light source 4 send convergent pencil of rays, and mobile this device, makes the luminous point of convergent pencil of rays be positioned at patient's midaxillary line the 4th intercostal, then fully fixes this device, complete zero step surely.

4. will insert in draw-in groove 2 with atmosphere phase go side infusion pipeline, close fixedly leaf 7 of upper and lower two tube for transfusions, keep the smooth, distortionless of pipeline.

5. step is carried out pressure measurement routinely.

6. by draw-in groove 2 other scales, carry out reading, be CVP value.

Claims

1. a central venous pressure balancing that utilizes light beam, comprise device body (1), front at device body (1) is formed with one for placing the draw-in groove (2) of tube for transfusion, at device body (1), be positioned in the part of draw-in groove (2) both sides and be formed with respectively a reading ruler, it is characterized in that: the left and right sides at device body (1) is respectively equipped with light source (4), during use, the light beam that light source (4) sends and its focus vertical with the major axis of reading ruler becomes a horizontal line with 0 position of this reading ruler.

2. a kind of central venous pressure balancing that utilizes light beam as claimed in claim 1, it is characterized in that: described light source (4) is connected at the switch (8) on described device body (1), in described device body (1), being provided with battery case (9), is described light source (4) power supply by the battery in battery case (9).

3. a kind of central venous pressure balancing that utilizes light beam as claimed in claim 1, is characterized in that: at the back side of described device body (1), be provided with fixed mount (6).

4. a kind of central venous pressure balancing that utilizes light beam as claimed in claim 1, it is characterized in that: in the front of described device body (1), be provided with fixedly leaf (7) of two tube for transfusions, two tube for transfusions fixedly leaf (7) lay respectively at top and the below of the described reading ruler of homonymy.