CN211432877U - CVP chi school zero improvement device - Google Patents

Abstract

The utility model discloses an improved device for zero calibration of a CVP ruler, which comprises a fixed support frame, wherein a bar-shaped magnet is fixed on the front side surface of the fixed support frame, a measuring scale is bonded on the front side surface of the bar-shaped magnet, a first scale mark is arranged on the upper part of one side of the surface of the measuring scale, a second scale mark is arranged on the lower part of the other side of the surface of the measuring scale, the zero points of the first scale mark and the second scale mark are positioned on the same horizontal line, one side of the measuring scale is integrally connected with a zero calibration device which is vertically arranged with the measuring scale, and the front end surface of the measuring scale is provided with a pressure measurement infusion device clamping groove. The zero calibration is successful when the infrared rays are aimed at the level of the fourth intercostal axillary midline of the patient.

Description

A CVP Ruler Zero Calibration Improvement Device

technical field

The utility model relates to the field of medical equipment, in particular to a CVP ruler zero calibration and improvement device.

Background technique

Central venous pressure (CVP) refers to the pressure in the superior vena cava, inferior vena cava and right atrium in the thoracic cavity, and is one of the important hemodynamic monitoring items for patients.

In clinical practice, visual inspection is commonly used to judge whether the zero point of the scale and the fourth intercostal space of the midaxillary line are at the same level. This method has large errors and is time-consuming. However, the closed hydraulic sensing measurement method has high accuracy and high equipment price, complicated equipment preparation, installation, and debugging, strong professional operation, and it is not easy for beginners to master, which limits its wide use. The factors affecting the accuracy of CVP included patient, operator and monitor factors, of which the zeroing factor accounted for 26.25%.

In order to provide accurate monitoring data for clinical diagnosis and treatment, the negative effects of related factors should be minimized during CVP monitoring. In clinical practice, visual inspection is commonly used to determine whether the zero point of the scale and the fourth intercostal space of the midaxillary line are at the same level. This method has a large error, and it is necessary to re-calibrate the zero point when measuring CVP again, which is large and troublesome.

Utility model content

The main purpose of the present invention is to provide a CVP ruler zero calibration and improvement device, which can effectively solve the problems in the background technology.

To achieve the above purpose, the technical scheme adopted by the present utility model is:

A CVP ruler zero calibration and improvement device, comprising a fixed support frame, a bar magnet is fixed on the front side surface of the fixed support frame, a measuring ruler is adhered to the front side surface of the bar magnet, and the surface of the measurement ruler is The upper part of one side is provided with a first scale line, the lower part of the other side of the surface of the measuring ruler is provided with a second scale line, the first scale line and the zero point of the second scale line are located on the same horizontal line, the A zero-calibration device is integrally connected to one side of the measuring ruler, the zero-calibration device is vertically arranged with the measuring ruler, and a pressure measuring infusion device clamping groove is arranged on the front end surface of the measuring ruler.

Preferably, the lengths of the measuring rulers are all smaller than the lengths of the bar magnets.

Preferably, the length of the first scale line is 35cm, and the length of the second scale line is 15cm.

Preferably, the zero calibration device is an infrared laser calibration instrument zero reset device.

Preferably, the zeroing device of the infrared laser calibration device is located on the same horizontal plane as the patient's fourth intercostal axillary midline.

Compared with the prior art, the utility model has the following beneficial effects: the CVP ruler zero calibration and improvement device, by arranging the bar magnet to be integrally connected with the measurement ruler, improves the connection and fixing device of the measurement ruler and the fixed support frame, changes the In the past, elastic clips or tapes were used to fix it, which made the adjustment of the measuring ruler more accurate and easy; by setting the zero-calibration device, the zero-calibration device used the zero-return device of the infrared laser calibration instrument, and the zero-return device was fixed at the zero position, so that the infrared rays emitted by it Vertical to the CVP ruler, when the infrared is aimed at the patient's fourth intercostal axillary midline, the zero calibration is successful. The entire CVP ruler zero calibration device is simple in structure, easy to operate, and has a better effect than the traditional method.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a CVP ruler zero calibration and improvement device of the present invention.

In the figure: 1. Fixed support frame; 2. Bar magnet; 3. Measuring ruler; 4. First scale line; 5. Second scale line; 6. Zero calibration device;

Detailed ways

In order to make the technical means, creation features, achievement goals and effects of the present invention easy to understand and understand, the present invention will be further described below with reference to the specific embodiments.

As shown in FIG. 1, a CVP ruler zero calibration and improvement device includes a fixed support frame 1, a bar magnet 2 is fixed on the front side surface of the fixed support frame 1, and the front side surface of the bar magnet 2 is glued There is a measuring ruler 3, the upper part of one side of the surface of the measuring ruler 3 is provided with a first scale line 4, and the lower part of the other side of the surface of the measuring ruler is provided with a second scale line 5, and the first scale line 4 The zero point of the second scale line 5 is located on the same horizontal line, and one side of the measuring ruler 3 is integrally connected with a zero-calibration device 6. The zero-calibration device 6 is arranged vertically with the measuring ruler 3. The front end surface is provided with a pressure measuring infusion set slot 7 .

In this embodiment, preferably, the measuring ruler is smaller than the length of the bar magnet 2 .

In this embodiment, preferably, the length of the first scale line 4 is 35 cm, and the length of the second scale line 5 is 15 cm.

In this embodiment, preferably, the zero calibration device 6 is an infrared laser calibration device zero reset device.

In this embodiment, preferably, the zeroing device of the infrared laser collimator and the mid-axillary line of the fourth intercostal space of the patient are located on the same horizontal plane.

It should be noted that the utility model is a CVP ruler zero calibration and improvement device. When in use, by integrating the measurement ruler 3 and the bar magnet 2, the connection and fixing device of the measurement ruler 3 and the fixed support frame is improved, and the In the past, it was fixed with elastic clips or tape, which made the adjustment of the measuring ruler 3 more accurate and easy; by setting the zero-calibration device 6, the zero-calibration device 6 used the zero-returner of the infrared laser calibration device, and the zero-returner was fixed at the zero position to make it The emitted infrared rays are perpendicular to the measuring ruler 3. When the infrared rays are aimed at the level of the patient's fourth intercostal axillary midline, the zero calibration is successful. The entire CVP ruler zero calibration device is simple in structure, easy to operate, and has a better effect than the traditional method.

The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention There will also be various changes and improvements in the new model, which all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides a CVP chi improvement device of checking zero, includes fixed support frame (1), its characterized in that: the utility model discloses a measuring scale, including fixed bolster (1), bar magnet (2), dipperstick (3) are bonded to the front side surface of fixed bolster (1), the front side surface of bar magnet (2) bonds, the surface one side upper portion of dipperstick (3) is equipped with first scale mark (4), the surface opposite side lower part of dipperstick is equipped with second scale mark (5), first scale mark (4) with the zero point of second scale mark (5) is located same water flat line, dipperstick (3) one side body coupling has zero calibration device (6), zero calibration device (6) with dipperstick (3) set up perpendicularly, the front end surface of dipperstick (3) is equipped with pressure measurement transfusion system draw-in groove (7).

2. A CVP ruler zero calibration improvement device according to claim 1, characterized in that: the length of the measuring scale (3) is smaller than that of the bar magnet (2).

3. A CVP ruler zero calibration improvement device according to claim 1, characterized in that: the length of the first scale mark (4) is 35cm, and the length of the second scale mark (5) is 15 cm.

4. A CVP ruler zero calibration improvement device according to claim 1, characterized in that: the zero calibration device (6) is an infrared laser calibration and aiming instrument zero resetting device.

5. An improved CVP ruler zero calibration device as claimed in claim 4, wherein: the infrared laser aiming instrument zeroing device and the fourth intercostal axillary midline of the patient are positioned on the same horizontal plane.

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