Portable CVP zero level device
Technical Field
The utility model belongs to the field of auxiliary appliances for measuring CVP (composite video protocol) values in clinical medical application, and particularly relates to a portable CVP zero-point level indicator for accurately positioning a zero point when the CVP values are measured in the clinical medical application.
Background
CVP, central venous pressure, is a common indicator of right heart function and blood volume, and its measured value is influenced by many factors such as blood volume, venous tone, venous return and intrathoracic pressure. The CVP value is of great significance in clinical medicine, such as judgment of the volume state of blood vessels, assessment of the preload of the heart and the like. Particularly, when an ICU critically ill patient is in critical condition and changes rapidly and complexly, and simultaneously when a floating catheter is introduced into the patient, CVP is measured to carry out a large amount of infusion in acute heart failure and infusion in a heart patient, the history of critical patient and extracorporeal circulation surgery helps to judge the condition of the patient, and the method has great significance in retrospective analysis of treatment and clinical care data.
The current CVP measuring method comprises a sensor measuring method and a manual measuring method, but any measuring method needs an important change point step, and the inaccurate zero point positioning can cause a series of serious consequences such as inaccurate measuring value, inaccurate diagnosis of doctors, inaccurate adopted treatment measures and the like; and the change of the body position of the patient, the change of the states of cough, sputum aspiration, vomit, agitation, twitch and the like and the change of the oxygen supply state of the breathing machine all influence the measurement of the CVP value, so that the zero point positioning needs to be frequently adjusted. At present, CVP zero-point quasi-position devices do not exist clinically, in ordinary nursing work, self-made horizontal pipes are used for positioning zero points through the water levels at two ends of water pipes for determining the zero points, meanwhile, the zero-point positioning is inaccurate and the deviation is large due to the fact that external factors and the manufacturing process are complex, the operation process is inconvenient, the fluctuation range of the measured CVP value is large, and the clinical data collection and the disease condition reference are affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a CVP zero-point level device which is convenient to carry, adjust and operate and save positioning time aiming at the problem of measuring and calibrating zero point of CVP clinically.
In order to solve the technical problems, the utility model provides a portable CVP zero-point level device which comprises a horizontal bubble and a laser emitter, wherein the horizontal bubble and laser rays emitted by the laser emitter are arranged in parallel, and a magnet is arranged on the back of the CVP zero-point level device.
Preferably, the laser emitter is a laser pointer.
Preferably, the magnet is arranged on the back of the horizontal bubble.
Preferably, the magnet is arranged on the back of the laser emitter.
Preferably, the device comprises a housing, the housing comprises a display window, a switch and a laser emitting port, and the horizontal bubble and the laser emitting port are arranged in the housing.
Preferably, the back of the housing is provided with a magnet.
Compared with the prior art, the utility model has the beneficial effects that:
1. the zero point can be accurately determined;
2. the preparation time of materials can be saved, and the material is more humanized and is deeply loved by medical care personnel;
3. the positioning process is convenient, simple and quick to operate, and the positioning time is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is a schematic diagram of a prior art method of measuring a CVP value to determine a zero point;
FIG. 2 is a first schematic structural diagram of the present embodiment;
FIG. 3 is a schematic diagram of the determination of zero using the present embodiment when measuring CVP values;
FIG. 4 is a second schematic structural diagram of the present embodiment;
wherein, 1-CVP zero level device, 2-horizontal bubble, 3-laser pen, 4-magnet, 5-shell, 6-display window, 7-switch hole, 8-laser emission hole.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in figure 1, in the prior art, the CVP value is measured by a visual inspection method and a self-made pipe through the liquid level to determine the position of the fourth rib of the axillary midline and the CVP zero point, and the accuracy of the CVP value is influenced due to overlarge errors caused by various factors in the process.
This application provides a portable CVP quasi-position ware at zero point to above-mentioned problem, as shown in fig. 2, CVP quasi-position ware 1 at zero point includes horizontal bubble 2 and laser pen 3, and the laser ray parallel arrangement that horizontal bubble 2 and laser pen 3 sent, at least back one side of horizontal bubble 2 are the plane setting, set up magnet 4 on this plane, and at least back one side of laser pen 3 is the plane setting, sets up magnet 4 on this plane. As shown in fig. 3, in the device, the horizontal bubble 2 is used as a standard horizontal basis, so that the standard horizontal position can be conveniently and constantly found. The laser pen 3 and the horizontal bubble 2 are placed in a matched mode, laser rays are stable and free of interference, the directivity is good, the laser pen 3 is clear and far away, and the laser rays emitted by the laser pen 3 are also located at a standard horizontal position by finding the horizontal bubble 2 of the horizontal position. Then, the horizontal bubble 2 and the laser pen 3 are moved longitudinally, so that laser rays are aligned to the position of a mark point between the fourth ribs of the central line between the armpits when a patient lies horizontally, the horizontal bubble 2 and the laser pen 3 are adsorbed on any iron material such as an iron infusion support and the like through a back magnet 4 after zero point finding is carried out, and the zero point baseline of the CVP is fixed. The device is adsorbable on any ferrous material from taking the magnetic surface, just can open laser when the manual button of pressing, and the device is light and handy little, easily carries and installs, need not the debugging and prepares, has significantly reduced CVP measuring the preparation work of making change and the precision of making change. Therefore, the method and the device solve the problem of accurately, quickly and frequently positioning the CVP measurement zero point in a sensor measurement method or a manual measurement method, and have great significance in CVP measurement in clinical medicine.
It should be noted that, this embodiment may further include a housing 5, as shown in fig. 4, the housing 5 includes a square housing 5, the housing 5 includes a display window 6, a switch hole 7 and a laser emitting opening 8, the horizontal bubble 2 and the laser emitting apparatus which are adjusted to have a parallel relationship are disposed in the housing, the display window 6 is used for displaying the moving condition of the bubble body of the horizontal bubble, the switch of the laser emitting apparatus is disposed in the switch hole 7 of the housing 5, the laser emitting head of the laser emitting apparatus is aligned to the laser emitting opening 8, and the back of the housing 5 is provided with a magnet 4. The integration sets up, has reduced the problem that removes at every turn and all will adjust horizontal bubble 2 and laser ray parallel relation, is that the problem is more simplified, uses more convenient high efficiency.
The utility model is not limited to the embodiments discussed above. The foregoing description of the specific embodiments is intended to describe and explain the principles of the utility model. Obvious modifications or alterations based on the teachings of the present invention should also be considered as falling within the scope of the present invention. The foregoing detailed description is provided to disclose the best mode of practicing the utility model, and also to enable a person skilled in the art to utilize the utility model in various embodiments and with various alternatives for carrying out the utility model.