CN210697614U - central venous pressure measuring device - Google Patents

Abstract

A central venous pressure measuring device relates to the technical field of medical equipment and solves the technical problem of improving the measuring precision. The device comprises a back inserting plate, a fixed ruler, a movable ruler and a chest baffle plate; the back inserting plate and the chest baffle are both flat plates and are parallel to each other; the fixed ruler and the movable ruler are vertically arranged straight rulers, and the length directions of the fixed ruler and the movable ruler are perpendicular to the plate surface of the back inserting plate; the lower end of the fixed ruler is fixed on the back inserting plate, and the upper end of the fixed ruler is fixed with an infusion valve for connecting an infusion hose; the adjustable ruler and the chest baffle are both arranged on the fixed ruler, the adjustable ruler and the chest baffle can slide up and down relative to the fixed ruler, and a guide rail for guiding the adjustable ruler and the chest baffle to slide up and down is formed on the fixed ruler. The device provided by the utility model, be applicable to the measurement of central venous pressure.

Description

central venous pressure measuring device

technical field

The utility model relates to the technology of medical equipment, in particular to the technology of a central venous pressure measuring device.

Background technique

Central venous pressure is a measure of the pressure in the great veins near the heart. This method is commonly used clinically to monitor the state of peripheral circulation and cardiac pump function.

The current central venous pressure measurement method is to use the infusion hose for the patient's target intravenous infusion. When the infusion hose is filled with liquid medicine, the infusion hose is connected to the atmospheric environment. Due to the existence of venous pressure, the infusion hose is The liquid column will stay at a certain height, and then use a ruler to measure the distance between the liquid level of the liquid column and the patient's mid-axillary line to obtain the patient's central venous pressure.

This method of measuring central venous pressure with a ruler requires doctors to estimate the position of the patient's mid-axillary line, and the measurement results are not precise enough and have large errors.

Utility model content

In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a central venous pressure measuring device capable of accurately measuring central venous pressure.

In order to solve the above technical problems, the utility model provides a central venous pressure measurement device, which is characterized in that: it includes a back insert plate, a fixed ruler, a movable ruler, and a chest baffle;

The back insert plate and the chest baffle plate are both flat plates, and the back insert plate and the chest baffle plate are parallel to each other; the fixed ruler and the movable ruler are both vertical rulers, and the length directions of the fixed ruler and the movable ruler are vertical. on the board surface of the back board;

The lower end of the fixed ruler is fixed on the back insert plate, and the upper end of the fixed ruler is fixed with an infusion valve for connecting the infusion hose;

The movable ruler and the chest baffle are installed on the fixed ruler, and both the movable ruler and the chest baffle can slide up and down relative to the fixed ruler, and a guide rail for guiding the movable ruler and the chest baffle to slide up and down is formed on the fixed ruler.

Further, a telescopic spring that can be stretched up and down is arranged between the back plate and the chest baffle, the upper end of the telescopic spring is fixed to the chest baffle, the lower end of the telescopic spring is fixed to the back plate, and the midpoint of the telescopic spring is fixed. The position is fixed with a zero pointer.

Further, the infusion valve is a reversing valve with one male port and two working ports.

The central venous pressure measuring device provided by the utility model can accurately obtain the position of the patient's mid-axillary line by using the cooperation of the back insert plate and the chest baffle plate, so that the zero position of the movable ruler can be accurately aligned with the patient's mid-axillary line, thereby accurately Central venous pressure was measured.

Description of drawings

1 is a schematic structural diagram of a central venous pressure measuring device according to a first embodiment of the present invention;

2 is a schematic structural diagram of a central venous pressure measuring device according to a second embodiment of the present invention.

Detailed ways

The embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings, but the present embodiments are not intended to limit the present utility model. Any similar structures and similar changes of the present utility model shall be included in the protection of the present utility model. Scope, the commas in the present utility model all represent the relationship of and.

As shown in FIG. 1 , a central venous pressure measurement device provided by the first embodiment of the present utility model is characterized in that: it includes a back insert plate 1 , a fixed ruler 2 , a movable ruler 3 , and a chest baffle plate 4 ;

Described back plate 1, chest plate 4 are flat plates, and back plate 1, chest plate 4 are parallel to each other; Described fixed ruler 2, movable ruler 3 are vertical rulers, and fixed ruler 2, The length direction of the movable ruler 3 is perpendicular to the board surface of the back board 1;

The lower end of the fixed ruler 2 is fixed on the back plate 1, and the upper end of the fixed ruler 2 is fixed with an infusion valve 7 for connecting an infusion hose;

The movable ruler 3 and the chest baffle 4 are both installed on the fixed ruler 2, and the movable ruler 3 and the chest baffle 4 can slide up and down relative to the fixed ruler 2. The fixed ruler 2 is formed with a guide for guiding the movable ruler and the chest baffle. Rails that slide up and down the board.

In the first embodiment of the present invention, the infusion valve 7 is a reversing valve with one male port and two working ports. In other embodiments of the present invention, the infusion valve 7 may also have one liquid inlet and one Shut-off valve for liquid outlet.

The first embodiment of the present utility model is suitable for measuring central venous pressure, and its use method is as follows:

When the patient is lying flat, first place the back plate 1 on the back of the patient, so that the patient's body is located between the back plate 1 and the chest plate 4, and then move the chest plate 4 downward, so that the chest plate 4 Stick to the patient's chest, and then measure the distance between the chest shield 4 and the back insert 1 through the scale on the fixed ruler 2, and then calculate the midpoint position between the chest shield 4 and the back insert 1 (this position Corresponding to the patient's mid-axillary line), then slide the movable ruler 3 up and down, so that the zero position of the movable ruler 3 is aligned with the midpoint between the chest baffle 4 and the back insertion plate 1, and then connect the infusion hose to the infusion valve 7, through the infusion hose for the patient's target intravenous infusion, the male port of the infusion valve 7 is connected to the lower infusion hose, the first working port is connected to the upper infusion hose, and the second working port is open to the atmospheric environment. The first working port is connected to the male port, and the liquid in the infusion bag enters the patient's target vein through the upper infusion hose and the lower infusion hose. When the lower infusion hose is filled with liquid, the infusion valve 7 Switch to the second working port and the male port is connected. At this time, the lower infusion hose is connected to the atmospheric environment. Due to the existence of venous pressure, the liquid column of the lower infusion hose will stay at a certain height. The movable ruler 3 can measure the distance between the liquid level of the liquid column and the patient's mid-axillary line, thereby obtaining the patient's central venous pressure.

As shown in FIG. 2 , the difference between the second embodiment of the present invention and the first embodiment is that in the second embodiment, a telescopic spring 6 that can be stretched up and down is provided between the back plate 1 and the chest baffle 4, and the telescopic spring The upper end of 6 is fixedly connected with the chest baffle plate 4 , the lower end of the telescopic spring 7 is fixedly connected with the back board 1 , and a zero pointer 5 is fixed at the midpoint of the telescopic spring 6 .

In the second embodiment of the present invention, when the chest baffle plate 4 moves up and down, the telescopic spring 6 will be elongated or shortened accordingly, and the zero position pointer 5 will also float up and down accordingly. so that the zero pointer 5 is always at the midpoint between the back insert 1 and the chest shield 4. When the back insert 1 and the chest shield 4 are attached to the patient's back and chest respectively, the zero pointer The position indicated by 5 is the position of the patient's mid-axillary line. Compared with the first embodiment, the step of calculating the position of the mid-axillary line by measuring the distance between the chest baffle and the back insert is omitted, which is more convenient to use.

Claims (3)

1. a central venous pressure measuring device, is characterized in that: comprise back insert board, fixed ruler, movable ruler, chest baffle; The back insert plate and the chest baffle plate are both flat plates, and the back insert plate and the chest baffle plate are parallel to each other; the fixed ruler and the movable ruler are both vertical rulers, and the length directions of the fixed ruler and the movable ruler are vertical. on the board surface of the back board; The lower end of the fixed ruler is fixed on the back insert plate, and the upper end of the fixed ruler is fixed with an infusion valve for connecting the infusion hose; The movable ruler and the chest baffle are installed on the fixed ruler, and both the movable ruler and the chest baffle can slide up and down relative to the fixed ruler, and a guide rail for guiding the movable ruler and the chest baffle to slide up and down is formed on the fixed ruler. 2. The central venous pressure measuring device according to claim 1, characterized in that: a telescopic spring capable of being stretched up and down is arranged between the back insert plate and the chest baffle, and the upper end of the telescopic spring is fixedly connected to the chest baffle, The lower end of the telescopic spring is fixedly connected with the back board, and a zero pointer is fixed at the midpoint of the telescopic spring. 3 . The central venous pressure measuring device according to claim 1 , wherein the infusion valve is a reversing valve with one male port and two working ports. 4 .

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