CN108309269B

CN108309269B - Vernier ruler for measuring central venous pressure

Info

Publication number: CN108309269B
Application number: CN201810327238.3A
Authority: CN
Inventors: 吕晓冰; 张敏; 牛庆慧; 官秋茹; 杨华
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2018-04-12
Filing date: 2018-04-12
Publication date: 2020-10-27
Anticipated expiration: 2038-04-12
Also published as: CN108309269A

Abstract

The invention relates to the field of medical instruments, in particular to a vernier ruler for measuring central venous pressure, which comprises a mounting plate, a fixing mechanism, a measuring mechanism, a first adjusting mechanism and a second adjusting mechanism, the measuring mechanism is arranged on the front side of the mounting plate, the fixing mechanism is arranged on the rear side of the mounting plate, the first adjusting mechanism and the second adjusting mechanism are respectively arranged on the mounting plate and the fixing mechanism, the measuring mechanism comprises an adjusting plate, a main ruler and an auxiliary ruler, the adjusting plate is arranged on the front side of the mounting plate, the main scale is arranged on the front side of the adjusting plate, the upper end and the lower end of the main scale are fixedly connected with the adjusting plate, the auxiliary ruler is sleeved on the main ruler and can move along the length direction of the main ruler, the vernier ruler for measuring the central venous pressure is in a horizontal state through the matching work of the first adjusting component and the second adjusting component, the numerical value of the central venous pressure can be read more accurately and accurately through the simultaneous working of the main ruler and the auxiliary ruler.

Description

Vernier ruler for measuring central venous pressure

Technical Field

The invention relates to the field of medical instruments, in particular to a vernier ruler for measuring central venous pressure.

Background

The Central Venous Pressure (CVP) measurement is a method for determining the comprehensive conditions of blood volume, heart function, blood vessel tension and the like of a patient by measuring the pressure in the right atrium or the thoracic cavity segments of the superior and inferior vena cava. CVP determination has wider clinical application value in the aspects of diagnosis, monitoring and treatment of critical patients.

The instrument of current measurement central venous pressure all is the snap-on the installation pole, fix the piezometer pipe on the manometer, adjust zero point earlier before using, later begin to measure, measure central venous pressure through the scale interval on the manometer, the value of the central venous pressure that measures like this is more rough, it is not accurate enough, at first, the ruler scale is bigger, can't carry out the precision measurement, secondly, central venous pressure measuring instrument does not adjust its inclination when fixed, can influence the degree of accuracy of central venous pressure measuring apparatu, also can influence the degree of accuracy of user's reading.

Disclosure of Invention

The invention aims to provide a vernier ruler for measuring central venous pressure, which solves the problems in the background technology.

The technical scheme of the invention is as follows: including the mounting panel, be used for the fixed mounting panel fixed establishment, be used for measuring the venous pressure the measuring mechanism, be used for adjusting the measuring mechanism left and right sides inclination's first adjustment mechanism and be used for adjusting the measuring mechanism front and back inclination's second adjustment mechanism, measuring mechanism installs the front side at the mounting panel, and fixed establishment installs the rear side at the mounting panel, first adjustment mechanism and second adjustment mechanism install respectively on mounting panel and fixed establishment, measuring mechanism includes regulating plate, main chi and vice chi, the front side at the mounting panel is installed to the regulating plate, the main chi is installed in the front side of regulating plate and the upper end and the lower extreme of main chi all with regulating plate fixed connection, vice chi cover is established on the main chi and the length direction that the main chi can be followed to the vice chi removes.

In a preferred embodiment of the present invention, the main scale is provided with main scale lines, the auxiliary scale is provided with auxiliary scale lines, one side of the auxiliary scale is provided with a moving block for moving the auxiliary scale, and the other side of the auxiliary scale is provided with a pointer.

In a preferred embodiment of the invention, a containing cavity for installing a first adjusting mechanism is arranged in the mounting plate, the first adjusting mechanism comprises a worm, a turbine, a rotating shaft and a rotating knob, the rotating shaft is horizontally arranged, one end of the rotating shaft is located in the containing cavity and is rotatably connected with the mounting plate, the other end of the rotating shaft penetrates through the mounting plate and extends to the outer side of the mounting plate, the rotating knob is fixedly connected with one end of the rotating shaft located on the outer side of the mounting plate, anti-slip grains are arranged on the side wall of the rotating knob, the worm is sleeved on the rotating shaft, the turbine is located below the worm and is meshed with the worm, a fixed shaft is arranged in the containing cavity, one end of the fixed shaft is rotatably connected with the mounting plate, and the other end.

In a preferred embodiment of the present invention, the fixing mechanism includes a fixing plate and two fixing buckles, the upper end of the fixing plate is hinged to the mounting plate, the two fixing buckles are arranged side by side, one end of each fixing buckle is hinged to the fixing plate, and the other end of each fixing buckle is fixedly connected to the fixing plate through a bolt.

In a preferred embodiment of the present invention, the second adjusting mechanism includes two connecting pieces and two screws, the two connecting pieces are respectively installed on two sides of the lower end of the fixing plate, the two connecting pieces are respectively provided with a screw hole, the two screws are both in threaded connection with the screw holes, and one ends of the two screws far away from the mounting plate are both provided with a screw cap.

In a preferred embodiment of the present invention, the adjusting plate is provided with a fixing groove for engaging with the transfusion leather strip, and one end of the pointer extends to the front of the fixing groove.

In a preferred embodiment of the invention, a fixing component for fixing the transfusion leather strips is arranged beside the fixing groove, the fixing component comprises a connecting shaft and a plurality of fixing pieces, the upper end and the lower end of the connecting shaft are rotatably connected with the adjusting plate, and the fixing pieces are arranged at equal intervals along the length direction of the connecting shaft.

In a preferred embodiment of the present invention, the upper end of the adjusting plate is provided with a first bubble level, and the side wall of the mounting plate is provided with a second bubble level.

The invention provides a vernier ruler for measuring central venous pressure by improvement, compared with the prior art, the vernier ruler has the following improvements and advantages: when the device is used, the fixed plate is installed on the fixed rod through the two fixing buckles, then the first bubble level meter and the second bubble level meter are observed, the first adjusting assembly and the second adjusting assembly are adjusted, the worm is driven to rotate through rotating the rotating button, the mounting plate is driven to rotate through the worm by the worm until the first bubble level meter is in a horizontal state, then the rotating cap is rotated to adjust the included angle between the mounting plate and the fixed plate until the second bubble level meter is in a horizontal state, the transfusion leather strip is prevented in the fixed groove, the fixed plate is rotated to press the transfusion leather strip on the fixed plate, then zero point adjustment is carried out, the moving block is pushed to enable the auxiliary ruler to move along the length direction of the main ruler until the pointer and the liquid level in the transfusion leather strip are at the same horizontal height, and then the numerical value of the central venous pressure is read through the main scale line on the main ruler and the auxiliary scale line on the auxiliary, the vernier ruler for measuring the central venous pressure is in a horizontal state through the matching work of the first adjusting component and the second adjusting component, and the numerical value of the central venous pressure can be read more accurately and accurately through the simultaneous work of the main ruler and the auxiliary ruler.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a cross-sectional view of the present invention;

FIG. 5 is an enlarged view at B in FIG. 4;

description of reference numerals: the measuring device comprises a mounting plate 1, a fixing mechanism 2, a fixing plate 2a, a fixing buckle 2b, a measuring mechanism 3, an adjusting plate 3a, a fixing groove 3a1, a main scale 3b1, an auxiliary scale 3c1, a moving block 3c2, a pointer 3c3, a first adjusting mechanism 4, a worm 4a, a turbine 4b, a rotating shaft 4c, a rotating button 4d, a fixing shaft 4e, a second adjusting mechanism 5, a connecting piece 5a, a screw rod 5b, a rotating cap 5c, a fixing assembly 6, a connecting shaft 6a, a fixing piece 6b, a first bubble level meter 7 and a second bubble level meter 8.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a vernier ruler for measuring central venous pressure by improvement, as shown in figures 1-5, the technical scheme of the invention is as follows: comprises a mounting plate 1, a fixing mechanism 2 for fixing the mounting plate 1, a measuring mechanism 3 for measuring the venous pressure, a first adjusting mechanism 4 for adjusting the left and right inclination angles of the measuring mechanism 3 and a second adjusting mechanism 5 for adjusting the front and back inclination angles of the measuring mechanism 3, the measuring mechanism 3 is arranged at the front side of the mounting plate 1, the fixing mechanism 2 is arranged at the rear side of the mounting plate 1, the first adjusting mechanism 4 and the second adjusting mechanism 5 are respectively arranged on the mounting plate 1 and the fixing mechanism 2, the measuring mechanism 3 comprises an adjusting plate 3a, a main scale 3b and an auxiliary scale 3c, the adjusting plate 3a is arranged on the front side of the mounting plate 1, the main scale 3b is arranged at the front side of the adjusting plate 3a, the upper end and the lower end of the main scale 3b are fixedly connected with the adjusting plate 3a, the auxiliary ruler 3c is sleeved on the main ruler 3b, and the auxiliary ruler 3c can move along the length direction of the main ruler 3 b; the vernier ruler for measuring the central venous pressure can be in a horizontal state through the matching work of the first adjusting mechanism 4 and the second adjusting mechanism 5, so that the measuring accuracy of the vernier ruler and the reading accuracy of a user are guaranteed, the height of the liquid level in the infusion leather strip is aligned through the pointer 3c3, and the value of the central venous pressure is read through the matching work of the main ruler 3b and the auxiliary ruler 3 c.

A main scale 3b1 is arranged on the main scale 3b, an auxiliary scale 3c1 is arranged on the auxiliary scale 3c, a moving block 3c2 for moving the auxiliary scale 3c is arranged on one side of the auxiliary scale 3c, and a pointer 3c3 is arranged on the other side of the auxiliary scale 3 c; the auxiliary scale 3c is adjusted by moving the moving block 3c2, so that the auxiliary scale 3c moves along the length direction of the main scale 3b, the pointer 3c3 is aligned with the height of the liquid level in the transfusion leather strip, the value of the central venous pressure is read through the main scale mark 3b1 and the auxiliary scale mark 3c1, and compared with the measurement of a common straight scale, the value read by matching the main scale 3b and the auxiliary scale 3c is more accurate and precise.

An accommodating cavity for installing a first adjusting mechanism 4 is arranged in the installing plate 1, the first adjusting mechanism 4 comprises a worm 4a, a turbine 4b, a rotating shaft 4c and a rotating button 4d, the rotating shaft 4c is horizontally arranged, one end of the rotating shaft 4c is positioned in the accommodating cavity and is rotationally connected with the mounting plate 1, the other end of the rotating shaft 4c penetrates through the mounting plate 1 and extends to the outer side of the mounting plate 1, the rotating button 4d is fixedly connected with one end of the rotating shaft 4c, which is positioned at the outer side of the mounting plate 1, the side wall of the rotating button 4d is provided with anti-skid grains, the worm 4a is sleeved on the rotating shaft 4c, the worm wheel 4b is positioned below the worm 4a and is meshed with the worm 4a, a fixed shaft 4e is arranged in the accommodating cavity, one end of the fixed shaft 4e is rotatably connected with the mounting plate 1, and the other end of the fixed shaft 4e sequentially penetrates through the turbine 4b and the mounting plate 1 and is fixedly connected with the adjusting plate 3 a; drive axis of rotation 4c through rotating knob 4d and rotate, install worm 4a on axis of rotation 4c and rotate along with axis of rotation 4c together, worm 4a drives rather than the turbine 4b of meshing and rotates, turbine 4b drives fixed axle 4e and rotates, thereby fixed axle 4e drives mounting panel 1 and rotates and adjust and install that the left and right sides inclination of measuring mechanism 3 in mounting panel 1 front side makes it keep at the horizontality, worm 4a can carry out the unlimited regulation with the cooperation of turbine 4b, and turbine 4b can't drive worm 4a and rotate and make mounting panel 1 can not take place to rotate because of other external forces.

The fixing mechanism 2 comprises a fixing plate 2a and two fixing buckles 2b, the upper end of the fixing plate 2a is hinged with the mounting plate 1, the two fixing buckles 2b are arranged in parallel, one ends of the two fixing buckles 2b are hinged with the fixing plate 2a, and the other ends of the two fixing plates 2a are fixedly connected with the fixing plate 2a through bolts; the hinged connection of fixed plate 2a and mounting panel 1 is convenient for second adjustment mechanism 5 to adjust the front and back inclination angle of mounting panel 1, and the one end of fixed knot 2b is articulated with fixed plate 2a, is convenient for fix fixed establishment 2.

The second adjusting mechanism 5 comprises two connecting pieces 5a and two screw rods 5b, the two connecting pieces 5a are respectively arranged at two sides of the lower end of the fixing plate 2a, screw holes are respectively arranged on the two connecting pieces 5a, the two screw rods 5b are respectively in threaded connection with the screw holes, and screw caps 5c are respectively arranged at one ends of the two screw rods 5b far away from the mounting plate 1; through rotating the turncap 5c for screw rod 5b rotates, because screw rod 5b and screw thread fit, screw rod 5b can remove along its length direction, and the one end of screw rod 5b supports and presses mounting panel 1 to adjust the contained angle between mounting panel 1 and fixed plate 2a, thereby adjusts the inclination around mounting panel 1.

A fixing groove 3a1 for clamping the transfusion leather strip is arranged on the adjusting plate 3a, and one end of the pointer 3c3 extends to the front of the fixing groove 3a 1; the transfusion leather strip is fixed in the fixing groove 3a1, so that the measuring mechanism 3 can measure the liquid level in the transfusion leather strip conveniently.

A fixing assembly 6 for fixing the transfusion leather strips is arranged beside the fixing groove 3a1, the fixing assembly 6 comprises a connecting shaft 6a and a plurality of fixing pieces 6b, the upper end and the lower end of the connecting shaft 6a are rotatably connected with the adjusting plate 3a, and the plurality of fixing pieces 6b are arranged at equal intervals along the length direction of the connecting shaft 6 a; the fixing sheet 6b is pressed against the transfusion leather strip in the fixing groove 3a1 by rotating the connecting shaft 6a, so that the position of the transfusion leather strip is kept, and the measuring mechanism 3 can conveniently measure the height of the liquid level in the transfusion leather strip.

A first bubble level meter 7 is arranged at the upper end of the adjusting plate 3a, and a second bubble level meter 8 is arranged on the side wall of the mounting plate 1; the horizontal angle of the measuring mechanism 3 is observed by the first and second bubble levels 7 and 8, so that the measuring mechanism 3 is in a horizontal state by adjusting the first and second adjusting members.

The working principle of the invention is as follows: when the device is used, the fixing plate 2a is installed on the fixing rod through the two fixing buckles 2b, then the first bubble level gauge 7 and the second bubble level gauge 8 are observed, the first adjusting assembly and the second adjusting assembly are adjusted, the worm 4a is driven to rotate through rotating the rotating button 4d, the mounting plate 1 is driven to rotate through the worm 4a by the turbine 4b until the first bubble level gauge 7 is in a horizontal state, then the rotating cap 5c is rotated, the included angle between the mounting plate 1 and the fixing plate 2a is adjusted until the second bubble level gauge 8 is in a horizontal state, the transfusion leather strip is prevented in the fixing groove 3a1, the connecting shaft 6a is rotated to enable the fixing plate 6b to be pressed on the transfusion leather strip, then zero point adjustment is carried out, the moving block 3c2 is pushed, the auxiliary ruler 3c is enabled to move along the length direction of the main ruler 3b until the pointer 3c3 and the liquid level in the transfusion leather strip are at the same horizontal height, the value of central venous pressure is then read by means of the main graduation 3b1 on main scale 3b and the auxiliary graduation 3c1 on auxiliary scale 3 c.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a vernier ruler of measurement central venous pressure which characterized in that: comprises a mounting plate (1), a fixing mechanism (2) for fixing the mounting plate (1), a measuring mechanism (3) for measuring venous pressure, a first adjusting mechanism (4) for adjusting the left and right inclination angles of the measuring mechanism (3) and a second adjusting mechanism (5) for adjusting the front and back inclination angles of the measuring mechanism (3), wherein the measuring mechanism (3) is arranged at the front side of the mounting plate (1), the fixing mechanism (2) is arranged at the rear side of the mounting plate (1), the first adjusting mechanism (4) and the second adjusting mechanism (5) are respectively arranged on the mounting plate (1) and the fixing mechanism (2), the measuring mechanism (3) comprises an adjusting plate (3 a), a main ruler (3 b) and an auxiliary ruler (3 c), the adjusting plate (3 a) is arranged at the front side of the mounting plate (1), the main ruler (3 b) is arranged at the front side of the adjusting plate (3 a), and the upper end and the lower end of the main ruler (3 b) are fixedly connected with the adjusting plate (3 a), the auxiliary ruler (3 c) is sleeved on the main ruler (3 b) and the auxiliary ruler (3 c) can move along the length direction of the main ruler (3 b);

the main scale (3 b) is provided with a main scale mark (3 b 1), the auxiliary scale (3 c) is provided with an auxiliary scale mark (3 c 1), one side of the auxiliary scale (3 c) is provided with a moving block (3 c 2) for moving the auxiliary scale (3 c), and the other side of the auxiliary scale (3 c) is provided with a pointer (3 c 3); be equipped with the chamber that holds that is used for installing first adjustment mechanism (4) in mounting panel (1), first adjustment mechanism (4) include worm (4 a), turbine (4 b), axis of rotation (4 c) and knob (4 d), axis of rotation (4 c) are the level setting, and the one end of axis of rotation (4 c) is located and holds the intracavity and rotate with mounting panel (1) and be connected, and the other end of axis of rotation (4 c) runs through the outside that mounting panel (1) extended to mounting panel (1), knob (4 d) and axis of rotation (4 c) are located the one end fixed connection in mounting panel (1) outside, are equipped with anti-skidding line on the lateral wall of knob (4 d), worm (4 a) cover is established on axis of rotation (4 c), turbine (4 b) are located the below of worm (4 a) and mesh with worm (4 a), it is equipped with fixed axle (4 e) to hold the intracavity, one end of the fixed shaft (4 e) is rotatably connected with the mounting plate (1), and the other end of the fixed shaft (4 e) sequentially penetrates through the turbine (4 b) and the mounting plate (1) and is fixedly connected with the adjusting plate (3 a).

2. A vernier ruler as claimed in claim 1 for measuring central venous pressure wherein: fixed establishment (2) are including fixed plate (2 a) and two fixed knots (2 b), the upper end of fixed plate (2 a) is articulated with mounting panel (1), and two fixed knots (2 b) are and set up side by side, and the one end of two fixed knots (2 b) all is articulated with fixed plate (2 a), and the other end of two fixed plates (2 a) all passes through bolt fixed connection with fixed plate (2 a).

3. A vernier ruler as claimed in claim 1 for measuring central venous pressure wherein: second adjustment mechanism (5) include two connection pieces (5 a) and two screw rods (5 b), and install respectively in the lower extreme both sides of fixed plate (2 a) two connection pieces (5 a), all are equipped with the screw on two connection pieces (5 a), and two screw rods (5 b) all with screw threaded connection, the one end that mounting panel (1) was kept away from in two screw rods (5 b) all is equipped with and revolves cap (5 c).

4. A vernier ruler as claimed in claim 3 for measuring central venous pressure wherein: the adjusting plate (3 a) is provided with a fixing groove (3 a 1) for clamping the transfusion leather strip, and one end of the pointer (3 c 3) extends to the front of the fixing groove (3 a 1).

5. A vernier ruler as claimed in claim 4 for measuring central venous pressure wherein: the side of fixed slot (3 a 1) is equipped with fixed subassembly (6) that are used for fixed infusion leather strap, fixed subassembly (6) are including connecting axle (6 a) and a plurality of stationary blade (6 b), the upper end and the lower extreme of connecting axle (6 a) all rotate with regulating plate (3 a) and are connected, and the length direction of connecting axle (6 a) is followed in a plurality of stationary blade (6 b) equidistant setting.

6. A vernier ruler as claimed in claim 5 for measuring central venous pressure wherein: the upper end of regulating plate (3 a) is equipped with first bubble spirit level (7), be equipped with second bubble spirit level (8) on the lateral wall of mounting panel (1).