Manual CVP measuring device

Abstract

The utility model relates to a manual CVP measuring device, and relates to the technical field of medical CVP measurement, the manual CVP measuring device comprises a piezometric tube, one end of the piezometric tube is provided with a connecting tube, the other end of the piezometric tube is provided with a water storage device for storing normal saline, and one end of the water storage device far away from the piezometric tube is provided with a first hook. The upper end of the piezometric tube is not externally connected with normal saline, so that the infection opportunity is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical CVP measurement, and in particular to a manual CVP measurement device. Background Art

[0002] CVP is the abbreviation of central venous pressure, which is the pressure at the point where the superior and inferior vena cava enter the right atrium. It is measured through a catheter in the superior and inferior vena cava or the right atrium. It reflects the right atrial pressure and is one of the main indicators for clinical observation of hemodynamics. It is affected by three factors: cardiac function, circulating blood volume and vascular tension. In the process of manual CVP measurement, an infusion tube with liquid is required and the height of the liquid level in the infusion tube must be measured.

[0003] Related technology can refer to the Chinese patent with announcement number CN218792253U, which discloses a manual CVP simple measuring device, including a pressure measuring tube, a connecting hose fixedly connected to the lower end of the pressure measuring tube, a scale line is set on the cylinder wall of the pressure measuring tube, a cover is set at the upper end of the pressure measuring tube, a connecting rope is fixed to the lower side of one end of the cover, the other end of the connecting rope is fixedly connected to the outer wall of the pressure measuring tube, a piston is fixed to the lower end of the cover, and the diameter of the piston is not less than the inner diameter of the pressure measuring tube. When in use, the cover is opened, the connecting tube on the saline solution is connected to the upper end of the pressure measuring tube, and then the connecting hose is connected to the hose to be tested at the other end, and then the data can be intuitively seen through the scale line on the pressure measuring tube for comparison through the free fall of the saline solution. This setting can ensure the accuracy of the data.

[0004] With regard to the above-mentioned related technologies, medical personnel are required to connect physiological saline to the upper end of the pressure measuring tube, which increases the chance of infection. Utility Model Content

[0005] In order to avoid connecting saline to the upper end of the pressure measuring tube and reduce the chance of infection, the present application provides a manual CVP measuring device.

[0006] The present application provides a manual CVP measurement device, which adopts the following technical solution:

[0007] A manual CVP measuring device comprises a pressure measuring tube, one end of which is provided with a connecting tube, the other end of which is provided with a water storage device for storing physiological saline, and the water storage device is provided with a first hook at one end away from the pressure measuring tube.

[0008] By adopting the above technical solution, a water storage device is arranged on the upper end of the pressure measuring tube, and physiological saline is stored in the water storage device. The upper end of the pressure measuring tube does not need to be externally connected to physiological saline, thereby reducing the chance of infection.

[0009] Optionally, the water storage device includes a water storage cylinder and a sphere used to close the water storage cylinder, a through opening is opened on the sphere, a rotating shaft is provided on the sphere, the center of the sphere is located on the axis of the rotating shaft, the axis of the rotating shaft and the axis of the through opening are perpendicular to each other, a rotating opening corresponding to the rotating shaft is opened on the wall of the water storage cylinder, one end of the rotating shaft extends from the rotating opening, the rotating shaft is rotatably connected to the water storage cylinder, and a knob is connected to one end of the rotating shaft.

[0010] By adopting the above technical solution, the user turns the knob to disconnect the through hole on the sphere from the water storage cylinder, thereby isolating the water storage cylinder from the pressure measuring tube, and sealing the physiological saline in the water storage cylinder when the pressure measuring tube is not in use.

[0011] Optionally, an auxiliary device for positioning is provided at one end of the pressure measuring tube close to the connecting tube, and the auxiliary device and the pressure measuring tube are perpendicular to each other.

[0012] By adopting the above technical solution, one end of the auxiliary device is aligned with the fourth rib of the measured person's mid-axillary line, and the user can quickly and accurately locate the measurement position.

[0013] Optionally, it also includes a hanging rod and a supporting rod for hanging the pressure measuring tube, one end of the hanging rod is fixedly connected to the supporting rod, and the other end is provided with a second hook, and the first hook is connected to the second hook.

[0014] By adopting the above technical solution, the user can fix the pressure measuring tube by connecting the first hook to the second hook.

[0015] Optionally, one end of the support rod away from the suspension rod is fixedly connected to a base, and a lower surface of the base is fixedly connected to a plurality of universal wheels.

[0016] By adopting the above technical solution, the user can move the support rod through the universal wheel to drive the pressure measuring tube to move.

[0017] Optionally, the auxiliary device is slidably connected to the pressure measuring tube, the auxiliary device is provided with a scale, the scale is provided with scale lines, the scale fits the pressure measuring tube, a threaded hole is opened on the auxiliary device, a first locking piece is inserted into the threaded hole, the first locking piece is threadedly connected to the auxiliary device, and one end of the first locking piece is in contact with the pressure measuring tube.

[0018] By adopting the above technical solution, the auxiliary device slides with the scale on the pressure measuring tube to locate the measurement position, and the user can directly read the liquid level height in the pressure measuring tube through the scale lines on the scale when measuring.

[0019] Optionally, the auxiliary device is fixedly connected to a pressure measuring tube, and a scale line is provided on the pressure measuring tube.

[0020] By adopting the above technical solution, when adjusting the position of the pressure measuring tube, there is no relative displacement between the auxiliary device and the scale lines on the pressure measuring tube, and the user can directly read the liquid level height in the pressure measuring tube through the scale lines when measuring.

[0021] Optionally, the support rod includes a first telescopic rod, a second telescopic rod and a second locking piece, one end of the first telescopic rod is fixedly connected to the hanging rod, the other end of the first telescopic rod slides inside the second telescopic rod, a threaded hole is opened on the side wall of the second telescopic rod, one end of the second locking piece passes through the threaded hole and abuts against the first telescopic rod, and the second locking piece is threadedly connected to the second telescopic rod.

[0022] By adopting the above technical solution, the position of the auxiliary device can be adjusted by adjusting the relative position of the first telescopic rod and the second telescopic rod, so that the auxiliary device is located at the measuring position.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. A water storage device is provided at the upper end of the pressure measuring tube, and physiological saline is stored in the water storage device. The upper end of the pressure measuring tube does not need to be connected to physiological saline, which reduces the chance of infection;

[0025] 2. The user turns the knob to disconnect the opening on the ball from the water storage cylinder, thereby isolating the water storage cylinder from the pressure measuring tube, and sealing the saline solution in the water storage cylinder when the pressure measuring tube is not in use;

[0026] 3. One end of the auxiliary device is aligned with the fourth rib of the measured person's mid-axillary line, and the user can quickly and accurately locate the measurement position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0028] Figure 2 yes Figure 1 Schematic diagram of the cross section along the AA direction.

[0029] Figure 3 It is a schematic diagram of the overall structure of Example 2.

[0030] Figure 4 It is a partial cross-sectional schematic diagram of the support rod in Example 2.

[0031] Explanation of the accompanying drawings: 1. pressure measuring tube; 11. connecting pipe; 2. water storage device; 21. water storage cylinder; 22. sphere; 221. rotating shaft; 222. knob; 3. first hook; 4. auxiliary device; 41. scale; 42. first locking piece; 5. hanging rod; 51. second hook 6. supporting rod; 61. first telescopic rod; 62. second telescopic rod; 63. second locking piece; 7. base; 8. universal wheel. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] Example 1

[0034] This embodiment discloses a manual CVP measurement device.

[0035] Reference Figure 1 A manual CVP measuring device includes a pressure measuring tube 1. A connecting tube 11 at one end of the pressure measuring tube 1 is connected to a hose to be tested. A water storage device 2 is arranged at the other end of the pressure measuring tube 1. Physiological saline is stored in the water storage device 2. The upper end of the pressure measuring tube 1 can be closed and not connected to external physiological saline, thereby reducing the chance of infection. A first hook 3 is fixed at one end of the water storage device 2 away from the pressure measuring tube 1, and the pressure measuring tube 1 is fixed by the first hook 3.

[0036] Reference Figure 1 and Figure 2 The water storage device 2 includes a water storage cylinder 21, a sphere 22 for closing the water storage cylinder 21, a through opening is provided on the sphere 22, a rotating shaft 221 is provided on the sphere 22, the center of the sphere 22 is located on the axis of the rotating shaft 221, the axis of the rotating shaft 221 and the axis of the through opening are perpendicular to each other, a rotating opening corresponding to the rotating shaft 221 is provided on the wall of the water storage cylinder 21, one end of the rotating shaft 221 extends from the rotating opening, the rotating shaft 221 is rotatably connected to the water storage cylinder 21, and the rotating shaft 221 is rotatably connected to the water storage cylinder 21. A knob 222 is connected to one end of the moving shaft 221. The user rotates the knob 222 to drive the sphere 22 to rotate. When the through hole on the sphere 22 and the axis of the water storage cylinder 21 are at the same position, the water output of the water storage cylinder 21 is the largest. When the through hole on the sphere 22 is perpendicular to the axis of the water storage cylinder 21, the water output of the water storage cylinder 21 is the smallest. At this time, the water storage cylinder 21 is closed, and the water storage cylinder 21 can be isolated from the pressure measuring tube 1. When not in use, the physiological saline is sealed in the water storage cylinder 21.

[0037] Reference Figure 1 A hanging rod 5 and a supporting rod 6 can also be selectively provided to hang and fix the pressure measuring tube 1. One end of the hanging rod 5 is fixedly connected to the supporting rod 6, and the other end is provided with a second hook 51. The user fixes the pressure measuring tube 1 by connecting the first hook 3 to the second hook 51. The support rod 6 is fixedly connected to the base 7 at one end away from the hanging rod 5, and a plurality of universal wheels 8 are fixedly connected to the lower surface of the base 7. The supporting rod 6 is moved by the universal wheels 8 to drive the pressure measuring tube 1 to move.

[0038] Reference Figure 1 and Figure 2The auxiliary device 4 is slidably connected to the pressure measuring tube 1, and a scale 41 is provided on the auxiliary device 4. The scale 41 is provided with scale lines. The scale 41 is arc-shaped, and the inner wall of the scale 41 fits the outer wall of the pressure measuring tube 1. A threaded hole is provided on the auxiliary device 4, and a first locking piece 42 is inserted into the threaded hole. The first locking piece 42 is threadedly connected to the auxiliary device 4, and one end of the first locking piece 42 abuts against the pressure measuring tube 1. The auxiliary device 4 slides on the pressure measuring tube 1 to position the measuring device. When the auxiliary device 4 reaches the measuring position, the user fixes the auxiliary device 4 by rotating the first locking piece 42 to press the outer wall of the pressure measuring tube 1. When measuring, the user can directly read the liquid level height in the pressure measuring tube 1 through the scale lines on the scale 41.

[0039] The implementation principle of a manual CVP measuring device in an embodiment of the present application is as follows: when using the device to measure CVP, firstly, turn the knob 222 to drive the ball 22 to rotate, so that the physiological saline flows from the water storage cylinder 21 into the pressure measuring tube 1, and the physiological saline does not need to be externally connected to the upper end of the pressure measuring tube 1, thereby reducing the chance of infection, and then slide the auxiliary device 4 on the pressure measuring tube 1, align the auxiliary device 4 with the fourth rib of the axillary midline of the person being measured, and turn the first locking member 42 to press the pressure measuring tube 1 to fix the auxiliary device 4, and then start measuring. During measurement, when the water column drops to the lowest point, the water level height inside the pressure measuring tube 1 is read. When reading, by setting the scale line, when the user uses the pressure measuring tube 1 to measure CVP, the liquid level height inside the pressure measuring tube 1 can be directly read, and there is no need to find a ruler everywhere to measure the value, thereby making it more convenient and accurate for the user to read the value, thereby effectively reducing the time for CVP measurement and improving work efficiency.

[0040] Example 2

[0041] This embodiment discloses a manual CVP measurement device.

[0042] Reference Figure 3 and Figure 4 , the difference from Example 1 is that the auxiliary device 4 is fixedly connected to the position of the pressure measuring tube 1 near the connecting tube 11, and a scale line is set on the pressure measuring tube 1. The support rod 6 includes a first telescopic rod 61, a second telescopic rod 62 and a second locking piece 63. One end of the first telescopic rod 61 is fixedly connected to the hanging rod 5, and the other end of the first telescopic rod 61 slides inside the second telescopic rod 62. A threaded hole is opened on the side wall of the second telescopic rod 62, and one end of the second locking piece 63 passes through the threaded hole and abuts against the first telescopic rod 61. The second locking piece 63 is threadedly connected to the second telescopic rod 62. The user slides the first telescopic rod 61 inside the second telescopic rod 62 to adjust the relative position of the first telescopic rod 61 and the second telescopic rod 62. When the auxiliary device 4 is in the measuring position, the second locking piece 63 is rotated to press the outer wall of the first telescopic rod 61. At this time, the position of the auxiliary device 4 is fixed, and the user can directly read the liquid level height in the pressure measuring tube 1 through the scale line on the pressure measuring tube 1 when measuring.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A manual CVP measuring device, comprising a pressure measuring tube (1), characterized in that: A connecting pipe (11) is provided at one end of the pressure measuring tube (1), a water storage device (2) for storing physiological saline is provided at the other end of the pressure measuring tube (1), and a first hook (3) is provided at one end of the water storage device (2) away from the pressure measuring tube (1).

2. A manual CVP measurement device according to claim 1, characterized in that: The water storage device (2) comprises a water storage cylinder (21), and a sphere (22) used to seal the water storage cylinder (21); a through opening is provided on the sphere (22); a rotating shaft (221) is provided on the sphere (22); the center of the sphere (22) is located on the axis of the rotating shaft (221); the axis of the rotating shaft (221) and the axis of the through opening are perpendicular to each other; a rotating opening corresponding to the rotating shaft (221) is provided on the wall of the water storage cylinder (21); one end of the rotating shaft (221) extends out of the rotating opening; the rotating shaft (221) is rotatably connected to the water storage cylinder (21); and one end of the rotating shaft (221) is connected to a knob (222).

3. A manual CVP measuring device according to claim 1, characterized in that: An auxiliary device (4) for positioning is provided at one end of the pressure measuring tube (1) close to the connecting tube (11), and the auxiliary device (4) and the pressure measuring tube (1) are perpendicular to each other.

4. A manual CVP measuring device according to claim 1, characterized in that: It also includes a hanging rod (5) and a supporting rod (6) for hanging the pressure measuring tube (1); one end of the hanging rod (5) is fixedly connected to the supporting rod (6); the other end of the hanging rod (5) is provided with a second hook (51); the first hook (3) is connected to the second hook (51).

5. A manual CVP measuring device according to claim 4, characterized in that: One end of the support rod (6) away from the suspension rod (5) is fixedly connected to a base (7), and a plurality of universal wheels (8) are fixedly connected to the lower surface of the base (7).

6. A manual CVP measuring device according to claim 3, characterized in that: The auxiliary device (4) is slidably connected to the pressure measuring tube (1); a scale (41) is provided on the auxiliary device (4); scale lines are provided on the scale (41); the scale (41) is fitted with the pressure measuring tube (1); a threaded hole is provided on the auxiliary device (4); a first locking member (42) is inserted into the threaded hole; the first locking member (42) is threadedly connected to the auxiliary device (4); one end of the first locking member (42) is in contact with the pressure measuring tube (1).

7. A manual CVP measuring device according to claim 3, characterized in that: The auxiliary device (4) is fixedly connected to the pressure measuring tube (1), and the pressure measuring tube (1) is provided with scale lines.

8. A manual CVP measuring device according to claim 4, characterized in that: The support rod (6) comprises a first telescopic rod (61), a second telescopic rod (62) and a second locking member (63); one end of the first telescopic rod (61) is fixedly connected to the suspension rod (5); the other end of the first telescopic rod (61) slides inside the second telescopic rod (62); a threaded hole is provided on the side wall of the second telescopic rod (62); one end of the second locking member (63) passes through the threaded hole and abuts against the first telescopic rod (61); and the second locking member (63) is threadedly connected to the second telescopic rod (62).

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