Auxiliary device for precisely measuring central venous pressure

Abstract

The utility model discloses an auxiliary device for precisely measuring central venous pressure, and relates to the technical field of medical instruments. The auxiliary device for precisely measuring the central venous pressure comprises two groups of lifting rails which are formed by bending a steel plate into an S shape; the two ends of the positioning strip are in forward sliding connection with the two sets of lifting rails correspondingly, and the positioning strip is fixed to the specified height of the lifting rails through first positioning bolts; the lifting track is arranged to be connected with the positioning strip, the height of the positioning strip can be adjusted to be kept at the height of the axillary center line, the device can be suitable for patients of different figures to use, the height of a saline column in an infusion tube can be accurately measured in cooperation with scale marks, and then the venous pressure value is read; the lifting frame is matched with the positioning buckle, the upper end of the infusion tube can be clamped and lifted, a water column is observed through residual saline water in the infusion tube, the height is stable, one person can operate, other people do not need to hold the infusion tube by hand all the time to lift the infusion tube, the manpower requirement is lowered, the measurement error is reduced, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an auxiliary device for precisely measuring central venous pressure. Background Technique

[0002] Measuring central venous pressure (CVP) is an important means to evaluate a patient's blood volume, cardiac function, and vascular tone. CVP refers to the pressure in the right atrium and the thoracic segments of the superior and inferior vena cava, and its normal value is 5-12 cmH2O (or 0.49-1.18 kPa).

[0003] Currently in clinical practice, measuring a patient's central venous pressure often requires multiple people to operate and cooperate. One person needs to hold and lift the infusion tube, and another person needs to horizontally lift the lower end of the infusion tube to the height of the midaxillary line. The height when the saline column in the infusion tube is relatively stationary is the central venous pressure value. At this time, a nurse needs to measure it with a ruler. During the whole process, there are human errors in fixing the infusion set pipeline, the midaxillary line position, and 90°. It is laborious and inaccurate; for the flushing saline, the medical staff needs to disconnect the infusion set and observe the water column using the remaining saline in the infusion tube, and this process is prone to omission, resulting in an increase in the intake volume. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides an auxiliary device for precisely measuring central venous pressure, which solves the above problems.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions: An auxiliary device for precisely measuring central venous pressure, comprising:

[0006] Lifting tracks, two groups are provided. One side of the lifting track is formed by bending a steel plate into an S shape, and the other side of the lifting track is formed by bending a steel plate into a U shape;

[0007] Positioning strips, the two ends of which are respectively slidably connected to the two groups of lifting tracks in the forward direction, and the positioning strips are fixed at a specified height on the lifting tracks through the first positioning bolts;

[0008] Support bottom plates, two groups are provided, and are respectively fixedly connected to the bottom ends of the two groups of lifting tracks and are perpendicular to the lifting tracks;

[0009] Elevating frames, longitudinally slidably arranged in the S-shaped lifting tracks, and the elevating frames are fixed at a specified height on the lifting tracks through the second positioning bolts;

[0010] Positioning buckles, a plurality of which are arranged on the side of the positioning strip;

[0011] An infusion tube, one section of which is vertically arranged and clamped at the top end of the elevating frame, and the other end is horizontally arranged and clamped in the positioning buckles.

[0012] Preferably, both ends of the positioning strip are folded in half and sleeved on the outside of the rear half of the lifting track, the first positioning bolt thread passes through the positioning strip and is pressed against the inner surface of the lifting track, and a first vertical groove adapted to the first positioning bolt is opened in the rear half of the lifting track.

[0013] Preferably, the lifting frame is slidably arranged in the cavity between the middle section and the front half of the lifting track, the second positioning bolt thread passes through the lifting frame and is pressed against the inner surface of the lifting track, and a second vertical groove adapted to the second positioning bolt is opened in the front half of the lifting track.

[0014] Preferably, the rear sides of the lifting track and the lifting frame are both engraved with scale lines for reading the height of the saline column in the infusion tube to obtain the venous pressure value.

[0015] Preferably, the top end of the positioning strip is bent backward and is provided with a notch for engaging the tip end of the infusion tube, and a U-shaped rubber sleeve is engaged inside the notch to increase the friction of the infusion tube.

[0016] Preferably, the lifting rails on both sides are connected to the connection positions of the supporting bottom plate by bolts with connection strips.

[0017] The utility model provides an auxiliary device for accurately measuring central venous pressure. Compared with the prior art, it has the following beneficial effects:

[0018] 1. This auxiliary device for accurately measuring central venous pressure connects the positioning bar by setting a lifting track. The height of the positioning bar can be adjusted to maintain it at the height of the mid-axillary line. It can be used by patients of different body shapes. With the scale line, the height of the saline column in the infusion tube can be accurately measured, and the venous pressure value can be read. The cooperation of the lifting frame and the positioning buckle can also clamp and lift the upper end of the infusion tube, and the remaining saline in it can be used to observe the water column. It is highly stable and can be operated by one person without the need for others to hold it up all the time, thereby reducing manpower requirements, reducing measurement errors, and facilitating operation.

[0019] 2. This auxiliary device for accurately measuring central venous pressure, after removing the saline bag, the U-shaped rubber sleeve at the notch can fix the tip of the infusion tube to prevent excessive saline infusion and increase the intake volume, and can keep the infusion tube at a vertical height, and use the remaining saline in it to observe the water column. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front perspective view of the utility model;

[0021] Figure 2 It is a rear perspective view of the utility model;

[0022] Figure 3This is an assembly schematic diagram of the local structures of the lifting track, positioning strip, and lifting frame of the present utility model.

[0023] In the figure: 1 - lifting track, 11 - first vertical groove, 12 - second vertical groove, 13 - scale line;

[0024] 2 - positioning strip, 21 - notch, 22 - U-shaped rubber sleeve;

[0025] 3 - first positioning bolt;

[0026] 4 - support bottom plate;

[0027] 5 - lifting frame;

[0028] 6 - second positioning bolt;

[0029] 7 - positioning buckle;

[0030] 8 - infusion tube;

[0031] 9 - connecting strip. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Referring to Figures 1 - 3 , the present utility model provides an auxiliary device for precisely measuring central venous pressure, including:

[0034] Two sets of lifting tracks 1, one side of the lifting track 1 is formed by bending a steel plate into an S shape, and the other side of the lifting track 1 is formed by bending a steel plate into a U shape;

[0035] A positioning strip 2, the two ends of which are respectively slidably connected to the two sets of lifting tracks 1 in the forward direction, and the positioning strip 2 is fixed at a specified height on the lifting track 1 through a first positioning bolt 3;

[0036] Two sets of support bottom plates 4, which are respectively fixedly connected to the bottoms of the two sets of lifting tracks 1 and are perpendicular to the lifting tracks 1. The support bottom plates 4 are used to press under the patient to vertically fix the entire device. A connecting strip 9 is commonly connected by bolts between the connection positions of the two sides of the lifting tracks 1 and the support bottom plates 4. The rear end of the support bottom plate 4 is bent upward to penetrate the bolt, and a convex strip is provided on the top of the support bottom plate 4 in front of the bottom end of the lifting track 1 for assisting the bent part to engage with the lifting track 1;

[0037] The lifting frame 5 is longitudinally slidably arranged in the S-shaped lifting track 1, and the lifting frame 5 is fixed to a specified height on the lifting track 1 by a second positioning bolt 6;

[0038] A plurality of positioning buckles 7 are provided on the side of the positioning strip 2, and the positioning buckles 7 are elastic plastic buckles;

[0039] The infusion tube 8 has one end arranged vertically and clamped on the top of the lifting frame 5 , and the other end arranged horizontally and clamped in the positioning buckle 7 .

[0040] In order to accurately control the height of the positioning bar 2, in this embodiment, scale lines 13 are printed on the back sides of the lifting track 1 and the lifting frame 2 for reading the height of the saline column in the infusion tube 8 to obtain the venous pressure value. The scale lines 13 on the lifting frame 2 serve as an extension of the scale lines 13 on the lifting track 1, and are used to expand the measurement range. The overall measurement range is 0-40cm.

[0041] By setting a lifting track 1 to connect the positioning bar 2, the height of the positioning bar 2 can be adjusted to maintain it at the height of the mid-axillary line, and it can be adapted to patients of different body shapes. In conjunction with the scale line 13, the height of the saline column in the infusion tube 8 can be accurately measured, and the venous pressure value can be read. The lifting frame 5 and the positioning buckle 7 can also clamp and lift the upper end of the infusion tube 8, and the remaining saline therein can be used to observe the water column. It is highly stable and can be operated by one person without the need for others to hold it up all the time, thereby reducing manpower requirements, reducing measurement errors, and facilitating operation.

[0042] Both ends of the positioning strip 2 are folded in half and sleeved on the outside of the rear half of the lifting track 1. The first positioning bolt 3 is threadedly penetrated through the positioning strip 2 and pressed against the inner surface of the lifting track 1. A first vertical groove 11 adapted to the first positioning bolt 3 is opened in the rear half of the lifting track 1.

[0043] The lifting frame 5 is slidably arranged in the cavity between the middle section and the front half section of the lifting track 1. The second positioning bolt 6 is threadedly penetrated through the lifting frame 5 and pressed against the inner surface of the lifting track 1. A second vertical groove 12 adapted to the second positioning bolt 6 is opened in the front half section of the lifting track 1.

[0044] The positioning bar 2 is the same as the lifting rail 1, and is supported by bending steel plates, which is simple and convenient to process. The height of the positioning bar 2 and the lifting frame 5 can be simply and conveniently adjusted through the cooperation of the positioning bolts and the vertical grooves.

[0045] To facilitate the convenient fixation of the upper end of the infusion tube 8, the top end of the positioning strip 2 is bent backward and provided with a notch 21 for clamping the tip of the infusion tube 8. To prevent the random sliding of the infusion tube 8, a U-shaped rubber sleeve 22 is clamped inside the notch 21 to increase the frictional force for clamping the infusion tube 8. After removing the saline bag, the U-shaped rubber sleeve 22 at the notch 21 can fix the tip of the infusion tube 8, prevent excessive saline infusion from causing an increase in the input volume, and keep the infusion tube 8 in a vertical height to observe the water column using the remaining saline inside it.

[0046] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0047] During use, the support base plate 4 of the device is pressed under the patient to fix the device upright. The tip of the infusion tube 8 is clamped inside the U-shaped rubber sleeve 22, the infusion tube 8 is bent around the first positioning bolt 3 and pulled to the side of the positioning strip 2 and clamped into the positioning buckle 7, and the other end of the needle is inserted into the patient's vein.

[0048] The tip of the infusion tube 8 is inserted into the saline bag for flushing the tube, and then the saline bag is removed. The remaining saline in the infusion tube 8 is used for measuring the venous pressure. When the saline column stops descending, look directly at the upper liquid level of the saline column horizontally, and subtract the scale value corresponding to the height of the midaxillary line (for different patients, the height of the midaxillary line is different, and the height of the midaxillary line is set as the 0 point), which represents the venous pressure value.

[0049] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for accurately measuring central venous pressure, characterized in that: include: There are two sets of lifting rails, one of which is made of steel plate bent into an S shape, and the other is made of steel plate bent into a U shape; The two ends of the positioning bar are respectively connected to the two sets of lifting rails in a positive sliding manner, and the positioning bar is fixed to the lifting rails at a specified height by a first positioning bolt; The supporting bottom plates are provided in two groups and are respectively fixedly connected to the bottom ends of the two groups of lifting rails and kept perpendicular to the lifting rails; The lifting frame is longitudinally slidably arranged in the S-shaped lifting track, and the lifting frame is fixed to a specified height on the lifting track by a second positioning bolt; Positioning buckles, a plurality of which are arranged on the side of the positioning strip; The infusion tube has one end arranged vertically and clamped on the top of the lifting frame, and the other end arranged horizontally and clamped in the positioning buckle.

2. An auxiliary device for accurately measuring central venous pressure according to claim 1, characterized in that: Both ends of the positioning strip are folded in half and sleeved on the outside of the rear half of the lifting track. The first positioning bolt thread penetrates the positioning strip and is pressed against the inner surface of the lifting track. A first vertical groove adapted to the first positioning bolt is opened in the rear half of the lifting track.

3. The auxiliary device for accurately measuring central venous pressure according to claim 1, characterized in that: The lifting frame is slidably arranged in the cavity between the middle section and the front half section of the lifting track, the second positioning bolt thread passes through the lifting frame and is pressed against the inner surface of the lifting track, and a second vertical groove adapted to the second positioning bolt is opened in the front half section of the lifting track.

4. The auxiliary device for accurately measuring central venous pressure according to claim 1, characterized in that: The rear sides of the lifting rail and the lifting frame are both engraved with scale lines for reading the height of the saline column in the infusion tube to obtain the venous pressure value.

5. The auxiliary device for accurately measuring central venous pressure according to claim 1, characterized in that: The top end of the positioning strip is bent backward and is provided with a notch for engaging the tip end of the infusion tube, and a U-shaped rubber sleeve is engaged inside the notch to increase the friction force of the infusion tube.

6. The auxiliary device for accurately measuring central venous pressure according to claim 1, characterized in that: The connection positions of the lifting rails and the supporting bottom plate on both sides are connected together with connection strips through bolts.

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