Auxiliary device for measuring central venous pressure

Abstract

The utility model relates to a central venous pressure measurement auxiliary device, which effectively solves the problems that the operation is complicated, time-consuming and labor-consuming when the central venous pressure is measured. Comprising a supporting block, back pressing plates are hinged to the left side and the right side of the lower end of the supporting block correspondingly, a sliding groove which is in the vertical direction and is through front and back is formed in the supporting block, a sliding block is slidably connected into the sliding groove, a containing groove is formed in the front end of the sliding block, a movable plate is arranged in the containing groove, and the front end of the movable plate extends out of the containing groove and is provided with a semicircular lower clamping plate; the left side and the right side of the front end of the supporting block are each provided with an upper clamping plate located above the corresponding sliding groove, the upper clamping plates are semicircular, communicating pipes are detachably connected into the two upper clamping plates and the two lower clamping plates, and scale marks are arranged on the surfaces of the communicating pipes. According to the device, the communicating pipe can be clamped and fixed and is always in a vertical state, measurement is facilitated, meanwhile, the zero position of the communicating pipe can be quickly aligned to the fourth intercostal space of the right midaxillary line of a patient through the sliding block, the zero position is prevented from being changed in the measurement process, and the measurement accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of venous pressure measurement, in particular to a central venous pressure measurement auxiliary device. Background Art

[0002] Central venous pressure refers to the pressure of blood flowing through the right atrium and the thoracic segment of the superior and inferior vena cava. By measuring central venous pressure, it can reflect blood volume, venous return, right ventricular filling pressure, etc. It is an important indicator for evaluating vascular capacity and right heart function.

[0003] When measuring, the patient needs to lie in a supine position, and the central venous catheter is inserted into the superior vena cava through a puncture of the subclavian vein. Then the connecting tube is connected, and the zero point position of the pressure measuring tube is kept at the same level as the patient's right atrium, which is equivalent to the position of the fourth intercostal space on the right mid-axillary line when the patient is lying flat. Then the pressure measuring tube is straightened and maintained, and then a ruler is used to measure the liquid level in the connecting tube to obtain the data result. However, there are the following defects in actual operation: since there is no scale on the connecting tube, medical staff need to use a ruler to measure every time, which is cumbersome, and a medical staff needs to fix the zero point position of the connecting tube at the position of the fourth intercostal space on the right mid-axillary line of the patient with one hand, and straighten the connecting tube and keep it vertical with the other hand, which is time-consuming and laborious. At the same time, if movement occurs during measurement, the zero point position will change, which will lead to inaccurate results. Utility Model Content

[0004] In view of the above situation, in order to make up for the deficiencies of the prior art, the purpose of the utility model is to provide a central venous pressure measurement auxiliary device, which effectively solves the problem of cumbersome, time-consuming and labor-intensive operation when measuring central venous pressure.

[0005] The technical solution is as follows: the utility model comprises a support block, and a back pressure plate is hinged on the left and right sides of the lower end of the support block respectively, and a slide groove is provided on the support block in the up-down direction and through front and back. A slider is slidably connected in the slide groove, and a receiving groove is provided at the front end of the slider. A movable plate is respectively provided on the left and right sides of the receiving groove, and the two movable plates can slide relative to or back to each other, and the front end of the movable plate extends out of the receiving groove and is provided with a semicircular lower clamping plate, and the left and right sides of the front end of the support block are respectively provided with an upper clamping plate located above the slide groove, the upper clamping plate is semicircular, and the upper clamping plate on the left side can move left and right, and the two upper clamping plates are detachably connected with a connecting pipe in the two lower clamping plates, and a scale line is provided on the surface of the connecting pipe; the movable plate is slidably connected to the slider, and the sliding connection in the receiving groove A pulling plate is connected between the two movable plates, and the left and right ends of the pulling plate are hingedly connected to the movable plates on the corresponding sides through a rocker rod; the rear end of the pulling plate passes through the slider and is provided with a pulling block; the opposite ends of the two pulling plates are connected to the slider through springs respectively; the rear end of the support block is provided with a plurality of limiting holes evenly distributed in the up and down directions, and the front end of the pulling block is provided with a limiting column that can be inserted into the limiting holes; the upper end of the back pressure plate is provided with a sponge pad; the upper clamping plate on the left is slidably connected to the support block, and the left end of the upper clamping plate on the left is provided with a pulling column, and the left end of the pulling column is provided with a lifting plate; the front end of the support block is provided with a reset plate located on the left side of the upper clamping plate, and a compression spring is provided between the reset plate and the upper clamping plate; the inner surfaces of the upper clamping plate and the lower clamping plate are provided with anti-slip strips.

[0006] Compared with the prior art, the utility model has the following beneficial effects: the connecting tube can be clamped and fixed so that the connecting tube is always in a vertical state, which is convenient for measurement; at the same time, the slider can quickly align the zero point position of the connecting tube with the fourth intercostal space of the patient's right mid-axillary line, and prevent the zero point position from changing during the measurement process, thereby ensuring the accuracy of the measurement; the scale lines provided can enable medical staff to read the values ​​accurately, and the operation is simple and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the main axonometric drawing of the utility model.

[0008] Figure 2 It is a full-section left-view axonometric drawing of the utility model.

[0009] Figure 3 It is a full-section top view axonometric drawing of the utility model.

[0010] Figure 4 It is a cutaway top axonometric view in the present utility model.

[0011] Figure 5 It is a rear axonometric drawing of the utility model. DETAILED DESCRIPTION

[0012] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0013] Depend on Figures 1 to 5 It is given, including a support block 1, and a back pressure plate 2 is hinged on the left and right sides of the lower end of the support block 1. A slide groove 3 is opened on the support block 1 in the up and down directions and runs through front and back. A slider 4 is slidably connected in the slide groove 3, and a receiving groove 5 is opened at the front end of the slider 4. A movable plate 6 is respectively arranged on the left and right sides of the receiving groove 5. The two movable plates 6 can slide relative to or back to each other. The front end of the movable plate 6 extends out of the receiving groove 5 and is provided with a semicircular lower clamping plate 7. The left and right sides of the front end of the support block 1 are respectively provided with upper clamping plates 8 located above the slide groove 3. The upper clamping plate 8 is semicircular and the upper clamping plate 8 on the left side can move left and right. The two upper clamping plates 8 are detachably connected to the two lower clamping plates 7 with a connecting pipe 9, and the surface of the connecting pipe 9 is provided with a scale line 10.

[0014] In order to allow the two movable plates 6 to slide relative to or away from each other, the movable plates 6 are slidably connected to the slider 4, and a pull plate 11 located between the two movable plates 6 is slidably connected in the accommodating groove 5. The left and right ends of the pull plate 11 are hingedly connected to the movable plate 6 on the corresponding side through a rocker rod 12.

[0015] In order to facilitate pulling the pull plate 11 , the rear end of the pull plate 11 passes through the slider 4 and is provided with a pull block.

[0016] In order to facilitate the resetting of the pull plate 11 , the opposite ends of the two pull plates 11 are connected to the slider 4 via springs 13 .

[0017] In order to facilitate the fixing and limiting of the slider 4, the rear end of the support block 1 is provided with a plurality of limiting holes 14 evenly distributed along the up-down direction, and the front end of the pull block is provided with limiting columns 15 that can be inserted into the limiting holes 14.

[0018] In order to increase the patient's comfort, a sponge pad is provided on the upper end of the back pressure plate 2.

[0019] In order to move the upper clamping plate 8, the upper clamping plate 8 on the left side is slidably connected to the support block 1, and a pulling column 16 is provided at the left end of the upper clamping plate 8 on the left side, and a lifting plate is provided at the left end of the pulling column 16.

[0020] In order to facilitate the resetting of the upper clamping plate 8 , a resetting plate located on the left side of the upper clamping plate 8 is provided at the front end of the support block 1 , and a compression spring is provided between the resetting plate and the upper clamping plate 8 .

[0021] In order to enhance the fixing effect, anti-slip strips are provided on the inner surfaces of the upper clamping plate 8 and the lower clamping plate 7 .

[0022] When the utility model is in use, the support block 1 is first placed vertically beside the patient, and then the back pressure plate 2 is pressed under the patient to achieve fixed limit of the support block 1, and then the pull block is pulled backward, the pull block drives the limit column 15 to move backward, and the limit column 15 moves backward for a distance and then is pulled out of the limit hole 14 to release the limit, when the pull block moves backward, it also drives the pull plate 11 to move backward, the pull plate 11 moves backward and drives the two moving plates 6 to move outward through the swing rod 12, that is, the left moving plate 6 moves to the left and the right moving plate 6 moves to the right, the two moving plates 6 move back to back and drive the two lower clamping plates 7 to move back to back, so as to realize the opening of the two upper clamping plates 8, and then the slider 4 is moved upward at this time;

[0023] The slider 4 moves up and down in the slide groove 3, so that the slider 4 moves to the position located at the fourth intercostal space of the right mid-axillary line of the patient, that is, the zero point position, and then the zero point position on the scale line 10 on the connecting tube 9 is placed between the two lower clamping plates 7, and the pull block is released at this time. Due to the inward restoring force of the spring 13, the two moving plates 6 move toward the middle, and the two moving plates 6 drive the two lower clamping plates 7 to move toward the middle. After moving a distance toward the middle, the two lower clamping plates 7 contact with the connecting tube 9 and clamp the connecting tube 9. Then, at the same time, the pull block drives the limit column 15 to move forward. After moving forward a distance, the limit column 15 is inserted into the limit hole 14 to achieve fixed limit, thereby preventing the slider 4 from moving;

[0024] Then, the lifting plate is pulled to the left, and the lifting plate drives the pulling column 16 to move to the left, and the pulling column 16 drives the upper clamping plate 8 on the left to move to the left, so that the two upper clamping plates 8 are separated, and then the upper side of the connecting tube 9 is placed between the two upper clamping plates 8, and the lifting plate is released. Due to the restoring force of the compression spring, the upper clamping plate 8 on the left is driven to move to the right, and after moving to the right for a distance, it contacts the surface of the connecting tube 9 and clamps the upper side of the connecting tube 9, and the connecting tube 9 is fixed and limited at this time, and the zero point position of the connecting tube 9 is accurately located at the fourth intercostal position of the right mid-axillary line of the patient;

[0025] Measurement can be carried out at this time, and medical staff can accurately read the results according to the scale line 10 on the connecting tube 9. After use, pull the pull block backwards again to release the fixed limit of the two lower clamping plates 7, and then take out the lower side of the connecting tube 9 from between the two lower clamping plates 7. The same is true for the upper side, and then swing the back pressure plate 2 upward to achieve folding and storage.

[0026] Compared with the prior art, the utility model has the following beneficial effects: the supporting block, slider, upper clamping plate, lower clamping plate, etc. are provided, which can realize the clamping and fixing of the connecting tube and keep the connecting tube in a vertical state at all times, which is convenient for measurement; at the same time, the slider can quickly align the zero point position of the connecting tube with the fourth intercostal space of the right midaxillary line of the patient, and prevent the zero point position from changing during the measurement process, thereby ensuring the accuracy of the measurement; the provided scale lines can enable medical staff to read the values ​​accurately, and the operation is simple and time-saving and labor-saving; the structure is simple, the concept is novel, the use is convenient, and the practicability is strong.

Claims

1. A central venous pressure measurement auxiliary device, comprising a support block (1), characterized in that: The left and right sides of the lower end of the support block (1) are respectively hinged with back pressure plates (2). The support block (1) is provided with a slide groove (3) in the up-down direction and through the front and back. A slider (4) is slidably connected in the slide groove (3). A receiving groove (5) is provided at the front end of the slider (4). A movable plate (6) is respectively provided on the left and right sides of the receiving groove (5). The two movable plates (6) can slide relative to or opposite to each other. The front end of the movable plate (6) extends out of the receiving groove (5) and is provided with a semicircular lower clamping plate (7). The left and right sides of the front end of the support block (1) are respectively provided with an upper clamping plate (8) located above the slide groove (3). The upper clamping plate (8) is semicircular and the upper clamping plate (8) on the left side can move left and right. A connecting pipe (9) is detachably connected between the two upper clamping plates (8) and the two lower clamping plates (7). The surface of the connecting pipe (9) is provided with a scale line (10).

2. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: The movable plate (6) is slidably connected to the slider (4), and a pull plate (11) located between the two movable plates (6) is slidably connected in the receiving groove (5). The left and right ends of the pull plate (11) are respectively hingedly connected to the movable plate (6) on the corresponding side via a swing rod (12).

3. The central venous pressure measurement auxiliary device according to claim 2, characterized in that: The rear end of the pull plate (11) passes through the slider (4) and is provided with a pull block.

4. The central venous pressure measurement auxiliary device according to claim 2, characterized in that: The opposite ends of the two pull plates (11) are connected to the slider (4) via springs (13) respectively.

5. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: The support block (1) is provided at the rear end with a plurality of limit holes (14) evenly distributed in the up-down direction, and the pull block is provided at the front end with a limit column (15) which can be inserted into the limit hole (14).

6. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: A sponge pad is provided on the upper end of the back pressure plate (2).

7. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: The upper clamping plate (8) on the left side is slidably connected to the support block (1), a pulling column (16) is provided at the left end of the upper clamping plate (8) on the left side, and a lifting plate is provided at the left end of the pulling column (16).

8. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: The front end of the support block (1) is provided with a reset plate located on the left side of the upper clamping plate (8), and a compression spring is provided between the reset plate and the upper clamping plate (8).

9. The central venous pressure measurement auxiliary device according to claim 1, characterized in that: Anti-slip strips are provided on the inner surfaces of the upper clamping plate (8) and the lower clamping plate (7).

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