CN211460196U

CN211460196U - Central venous pressure measuring device

Info

Publication number: CN211460196U
Application number: CN201922296980.5U
Authority: CN
Inventors: 周锐; 陈洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-09-11
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a central venous pressure measuring device, which comprises a vertical rod, a moving block, a cross arm, a sliding block, a laser pen and a scale, wherein the upper end of the vertical rod is connected with a hook, and the surface of the vertical rod is provided with a first thread; the center of the moving block is provided with a screw hole matched with the first thread on the surface of the upright rod, the moving block is provided with a supporting surface, and the moving block is provided with a circle of annular groove with an arc-shaped section; the cross arm is arranged on a supporting surface of the moving block and comprises a left arm and a right arm, a pair of smooth surface through holes are formed in the left arm, a pair of threaded blind holes are formed in the right arm, and a pair of bolts respectively penetrate through the smooth surface through holes in the left arm and then are connected with the threaded blind holes in the right arm through annular grooves; the sliding block is connected to the cross arm in a sliding mode, a piezometer tube placing groove is formed in the side surface of the sliding block, and a scale mounting rack is arranged on the upper end surface of the sliding block; the laser pen is rotationally connected to the upper end of the sliding block; the scale is detachably connected with the scale mounting rack. The utility model provides an inaccurate, unintuitive problem of zero point scale adjustment in the current measuring device measurement process, improved the accuracy of reading.

Description

Central venous pressure measuring device

Technical Field

The utility model relates to a central venous pressure measuring device, especially measuring device's zero point adjustment structure.

Background

The central venous pressure is an important index for evaluating the blood volume and the right heart function, and has important reference significance for guiding treatment. The simplest device for measuring the central venous pressure clinically is a tee joint, an infusion bag, a set of infusion tubes, a piezometric tube and a graduated scale. One of the key factors affecting the accuracy of the measurement result during the measurement process is that the zero graduation line of the scale is required to be on a horizontal line with the right atrium of the patient, otherwise the reading has a large deviation. In actual measurement, a visual observation method is mostly adopted to determine that the zero scale mark of the ruler is in the same horizontal line with the right atrium of the patient, and although domestic methods also disclose that a plurality of stents are used for measuring the auxiliary central venous pressure, the stents have the following problems:

firstly, no obvious identification point exists when the position of the right atrium is determined, and the corresponding position of the zero scale mark of the staff gauge on the body of a patient cannot be visually seen;

secondly, the support has less adjustment direction and can only move up and down generally, and the support can only be moved integrally if the support is close to a patient;

thirdly, the scale is fixed relative to the bracket, and the installation position of the scale cannot be corrected after long-time use;

fourthly, the cross rod and the vertical rod of the bracket can not be detached, and the occupied space is occupied.

Disclosure of Invention

The utility model aims at providing a central venous pressure measuring device solves the inaccurate scale adjustment at zero point in the current measuring device measurement process, and the problem of direct sight improves the accuracy of reading.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a central venous pressure measuring device comprises a central venous pressure measuring device,

the upper end of the vertical rod is connected with a hook, and a first thread is processed on the surface of the vertical rod;

the center of the moving block is provided with a screw hole matched with the first thread on the surface of the vertical rod, and the moving block is provided with a supporting surface;

the cross arm is arranged on a supporting surface of the moving block;

the sliding block is connected to the transverse arm in a sliding mode, a pressure measuring pipe placing groove is formed in the side surface of the sliding block, and a scale mounting rack is arranged on the upper end surface of the sliding block;

the laser pen is rotatably connected to the upper end of the sliding block;

the scale is detachably connected with the scale mounting frame.

Furthermore, a circle of annular groove with an arc-shaped section is formed in the moving block; the cross arm comprises a left arm and a right arm, a pair of smooth surface through holes are formed in the left arm, a pair of threaded blind holes are formed in the right arm, and a pair of bolts penetrate through the smooth surface through holes in the left arm and then are connected with the threaded blind holes in the right arm through annular grooves.

Further, a pair of linear sliding grooves is formed in the surface of the right arm.

Furthermore, the lower end of the sliding block is provided with a pair of sliding bulges, the upper end face of the sliding block is provided with a blind hole, a laser pen holder is rotationally connected in the blind hole, and a laser pen is placed on the laser pen holder.

Further, the scale mounting bracket is perpendicularly connected at the upper end face of the slider, a notch perpendicular to the upper end face of the slider is formed in the scale mounting bracket, fastening screws are connected to the surface of the scale mounting bracket in a threaded mode, and the tail ends of the fastening screws are arranged in the notch.

Further, the central venous pressure measuring device further comprises a plurality of fixing rings, and the plurality of fixing rings are connected to the side surface of the sliding block and the scale mounting frame respectively.

The utility model discloses possess following advantage:

(1) the laser pen can form visual and obvious identification points on the body of a patient, and can help an operator to quickly and accurately find the position parallel to the right atrium, so that the zero point position of the pressure measuring scale can be conveniently adjusted;

(2) the whole device has a large adjustable range, so that an operator can conveniently adjust the measuring device according to the posture of a patient, wherein the cross arm can move up and down along the upright post, the sliding block can move left and right along the cross arm, and the cross arm can also rotate relative to the upright post at the same height position on the upright post;

(3) the cross arm is of a detachable structure and is divided into two sections, the cross arm can be detached when the central venous pressure is not measured, and the vertical rod can be independently used as an intravenous injection bracket;

(4) the ruler for pressure measurement reading can be independently adjusted, so that the adjustment of the zero point of the pressure measurement device is further facilitated;

(5) the device can be closer to the right atrium of a patient through rotation and movement, the pressure measurement result is more accurate, and the rotation function of the cross arm can be used for judging the horizontal position of the cross arm.

Drawings

FIG. 1 is a schematic overall view of a central venous pressure measurement device;

FIG. 2 is a schematic structural diagram of a cross arm and a moving block;

FIG. 3 is a schematic structural view of a right arm and a slider;

FIGS. 4 and 5 are enlarged partial views of the slider;

fig. 6 is a schematic diagram of a fast-moving structure.

Detailed Description

The following description of the present invention will be made with reference to the accompanying drawings and specific embodiments, but it should not be understood that the scope of the present invention is limited to the following embodiments, and various modifications, substitutions and changes made according to the ordinary technical knowledge and conventional means in the art without departing from the technical spirit of the present invention are included in the scope of the present invention.

Referring to fig. 1 to 6, the central venous pressure measuring device in the present embodiment is mainly composed of a vertical rod 1, a moving block 2, a cross arm 3, a sliding block 4, a laser pen 5 and a scale 9. The infusion bag hanging device comprises a vertical rod 1, a hook, a first screw thread and a second screw thread, wherein the upper end of the vertical rod 1 is connected with the hook, the hook is used for hanging an infusion bag, the vertical rod 1 is a linear hollow tube, and the surface of the vertical rod 1 is provided with the first screw thread; the moving block 2 is in threaded connection with the surface of the vertical rod 1, specifically, as shown in fig. 6, the moving block 2 is a stepped cylinder, the center of the moving block is provided with a screw hole 21 matched with a first thread on the surface of the vertical rod 1, the moving block 2 is circumferentially provided with an annular supporting surface 23, and the surface of the moving block 2 is also provided with a circle of annular groove 22 with an arc-shaped section; as shown in fig. 1, the cross arm 3 is disposed on the supporting surface 23 of the moving block 2, as shown in fig. 2, the cross arm 3 includes a left arm 32 and a right arm 31, the left arm 32 is provided with a pair of smooth through holes (i.e. the hole wall is a smooth surface), the right arm 31 is provided with a pair of blind threaded holes, a pair of bolts 33 respectively pass through the smooth through holes on the left arm 32 and then are finally connected with the blind threaded holes on the right arm 31 through the annular groove 22, and two side surfaces of the right arm 31 are respectively provided with a linear sliding groove 35. As in fig. 1-5, slider 4 sliding connection is on xarm 3, 4 side openings of slider have two piezometer tube standing grooves 42, the up end of slider 4 is provided with

scale mounting bracket

8, 4 lower extremes of slider have a pair of slip arch 41 to be used for matching spout 35, the blind hole has been opened to 4 up ends of slider, the blind hole internal rotation is connected with laser pen stand 10, open at 10 upper ends of laser pen stand has the recess, laser pen 5 places on the recess of laser pen stand 10, still open a groove 44 that is located 8 below of scale mounting bracket on the up end of slider 4, the width and the length of groove 44 satisfy and can insert scale 9. The perpendicular up end of connecting at slider 4 of scale mounting bracket 8 has a notch 81 of perpendicular to slider 4 up end on the

scale mounting bracket

8, and 8 surface thread of scale mounting bracket is connected with fastening screw 82, and in notch 81 was arranged in to fastening screw 82's end, scale 9 directly placed in notch 81, compressed tightly through fastening screw 82. As shown in fig. 4, a plurality of fixing rings 7 are attached to the scale mounting bracket 8 and the side surface of the slider 4, respectively, for preventing the pressure measuring tube from falling off.

When the central venous pressure measuring device is used, firstly, the upright rod 1 is fixed, the movable block 2 is rotated on the upright rod 1 to move up and down to the position approximately equal to the height of a patient when the patient lies, then the left arm 32 and the right arm 31 are placed on the supporting surface 23 of the movable block 2, the bolt 33 which sequentially detaches the light incident surface through hole, the annular groove 22 and the threaded blind hole is screwed and screwed, so that the cross arm 3 is assembled, the cross arm 3 can rotate relative to the annular groove 22 through the bolt 33, and the rotary cross arm 3 is close to the patient. Then, sliding the slider 4 into the sliding groove 35 from the end of the right arm 31, placing the laser pen 5 in the groove at the upper end of the laser pen holder 10 on the upper end surface of the slider 4, opening the laser pen 5, first rotating the cross arm 3, determining whether the cross arm 3 and the upright rod 1 are horizontal (if not, the angle of the cross arm 3 can be adjusted by slightly adjusting the rotating direction of the two bolts 33) by comparing whether the light spot projected by the laser pen 5 is along a straight line (for example, the edge of a window, a cabinet, etc.), then rotating the laser pen holder 10 to project the light spot of the laser pen 5 on the body of the patient, rotating the moving block 2 again according to the position of the light spot and matching with the moving slider 4 or rotating the laser pen holder 10 until the light spot can be accurately projected at the atrium of the patient, keeping the moving block 2 still at this time, inserting the scale 9 into the notch 81 of the scale mounting rack 8, rotating the laser pen holder 10 to project the light spot of, the scale 9 is moved up and down in the notches 81 and grooves 44 and when the spot is aligned with the 0 scale line of the scale 9 (typically the spot is between 2mm and 3mm in diameter, the centre of the spot being taken to coincide with the 0 scale line), the fastening screw 82 is tightened to secure the scale 9 in the notch 81 of the scale mounting bracket 8. Finally, the infusion bag is hung at the upper end of the upright rod 1, the piezometer tube penetrates through the fixing ring 9 and the piezometer tube placing groove 42 to be connected with the scale mounting frame 8 and the sliding block 4, the infusion tube, the venous catheter and the piezometer tube are connected through a tee joint, and the central venous pressure is measured according to a conventional method.

Claims

1. A central venous pressure measurement device, characterized by: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the device comprises a vertical rod (1), wherein the upper end of the vertical rod (1) is connected with a hook, and a first thread is processed on the surface of the vertical rod (1);

the center of the moving block (2) is provided with a screw hole (21) matched with a first thread on the surface of the vertical rod (1), the moving block (2) is provided with a supporting surface (23), and the moving block (2) is provided with a circle of annular groove (22) with an arc-shaped cross section;

the cross arm (3) is arranged on a supporting surface (23) of the moving block (2), the cross arm (3) comprises a left arm (32) and a right arm (31), the left arm (32) is provided with a pair of smooth surface through holes, the right arm (31) is provided with a pair of threaded blind holes, and a pair of bolts (33) respectively penetrate through the smooth surface through holes in the left arm (32) and then are connected with the threaded blind holes in the right arm (31) through an annular groove (22);

the sliding block (4) is connected to the cross arm (3) in a sliding mode, a pressure measuring pipe placing groove (42) is formed in the side surface of the sliding block (4), and a scale mounting rack (8) is arranged on the upper end face of the sliding block (4);

the laser pen (5) is rotatably connected to the upper end of the sliding block (4);

the scale (9), scale (9) and scale mounting bracket (8) can be dismantled and be connected.

2. A central venous pressure measurement device as claimed in claim 1, characterised in that: the surface of the right arm (31) is provided with a pair of linear chutes (35).

3. A central venous pressure measurement device as claimed in claim 1, characterised in that: the laser pen holder is characterized in that a pair of sliding protrusions (41) are arranged at the lower end of the sliding block (4), a blind hole is formed in the upper end face of the sliding block (4), a laser pen holder (10) is connected to the blind hole in a rotating mode, and the laser pen (5) is placed on the laser pen holder (10).

4. A central venous pressure measurement device as claimed in claim 1, characterised in that: the ruler mounting bracket (8) is perpendicularly connected to the upper end face of the sliding block (4), a notch (81) perpendicular to the upper end face of the sliding block (4) is formed in the ruler mounting bracket (8), fastening screws (82) are connected to the surface of the ruler mounting bracket (8) in a threaded mode, and the tail ends of the fastening screws (82) are arranged in the notch (81).

5. A central venous pressure measurement device as claimed in claim 1, characterised in that: still include a plurality of solid fixed ring (7), it is a plurality of gu fixed ring (7) is connected respectively on scale mounting bracket (8) and slider (4) side surface.