CN108309269B - A vernier ruler for measuring central venous pressure - Google Patents

Abstract

The invention relates to the field of medical equipment, in particular to a vernier ruler for measuring central venous pressure, comprising a mounting plate, a fixing mechanism, a measuring mechanism, a first adjusting mechanism and a second adjusting mechanism, wherein the measuring mechanism is installed in front of the mounting plate side, the fixing mechanism is installed on the rear side of the installation plate, the first adjustment mechanism and the second adjustment mechanism are respectively installed on the installation plate and the fixing mechanism, and the measurement mechanism includes an adjustment plate, a main ruler and an auxiliary ruler. The plate is installed on the front side of the installation plate, the main ruler is installed on the front side of the adjustment plate, and the upper and lower ends of the main ruler are fixedly connected with the adjustment plate, the auxiliary ruler is sleeved on the main ruler, and the auxiliary ruler can follow the main ruler. The length direction of the ruler moves, the present invention makes the vernier ruler for measuring central venous pressure in a horizontal state through the cooperation of the first adjustment component and the second adjustment component, and the simultaneous work of the main ruler and the auxiliary ruler can be more accurate and accurate. Read the value of central venous pressure.

Description

A 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 technique

Central venous pressure (CVP) measurement refers to a method for judging the comprehensive conditions of patients' blood volume, cardiac function and vascular tone by measuring the pressure in the right atrium or the thoracic segments of the superior and inferior vena cava. CVP determination has a wide range of clinical application value in the diagnosis, monitoring and treatment of critically ill patients.

The existing instruments for measuring central venous pressure are directly fixed on the installation rod, and the pressure measuring tube is fixed on the pressure gauge. Before use, the zero point adjustment is performed, and then the measurement is started. Measuring the central venous pressure, the value of the central venous pressure measured in this way is relatively rough and not accurate enough. First, the scale of the ruler is relatively large, which cannot be used for precise measurement. Secondly, the central venous pressure measuring instrument does not adjust its tilt angle when it is fixed. , will affect the accuracy of the central venous pressure meter and the accuracy of the user's readings.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a vernier ruler for measuring central venous pressure, so as to solve the problems raised in the above background art.

The technical scheme of the present invention is: comprising a mounting plate, a fixing mechanism for fixing the mounting plate, a measuring mechanism for measuring venous pressure, a first adjusting mechanism for adjusting the left and right inclination angles of the measuring mechanism, and a first adjusting mechanism for adjusting the front and rear inclination of the measuring mechanism a second adjusting mechanism for the angle, the measuring mechanism is installed on the front side of the mounting plate, the fixing mechanism is installed on the rear side of the mounting plate, the first adjusting mechanism and the second adjusting mechanism are respectively installed on the mounting plate and the fixing mechanism, The measuring mechanism includes an adjustment plate, a main ruler and an auxiliary ruler, the adjustment plate is installed on the front side of the mounting plate, the main ruler is installed on the front side of the adjustment plate, and the upper and lower ends of the main ruler are fixedly connected with the adjustment plate The auxiliary ruler is sleeved on the main ruler and the auxiliary ruler can move along the length direction of the main ruler.

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

In a preferred embodiment of the present invention, the mounting plate is provided with an accommodating cavity for installing a first adjusting mechanism, the first adjusting mechanism includes a worm, a turbine, a rotating shaft and a rotating knob, and the rotating shaft is horizontal One end of the rotating shaft is located in the accommodating cavity and is rotatably connected with the mounting plate, the other end of the rotating shaft extends through the mounting plate to the outside of the mounting plate, and the rotating knob is fixedly connected with the end of the rotating shaft located on the outside of the mounting plate. There are anti-skid lines on the side wall of the worm, the worm is sleeved on the rotating shaft, the turbine is located below the worm and is engaged with the worm, the accommodating cavity is provided with a fixed shaft, and one end of the fixed shaft is rotatably connected to the mounting plate , the other end of the fixed shaft penetrates the turbine and the mounting plate in turn and is fixedly connected with the adjusting plate.

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 with the mounting plate, the two fixing buckles are arranged side by side, and one end of the two fixing buckles is connected to the mounting plate. The fixing plates are hinged, and the other ends of the two fixing plates are both fixedly connected with the fixing plates through bolts.

In a preferred embodiment of the present invention, the second adjustment mechanism includes two connecting pieces and two screws, the two connecting pieces are respectively installed on both sides of the lower end of the fixing plate, and the two connecting pieces are provided with screw holes. Both the two screws are connected with the screw holes threadedly, and the ends of the two screws away from the mounting plate are provided with screw caps.

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

In a preferred embodiment of the present invention, a fixing component for fixing the infusion leather strap is provided on the side of the fixing groove, and the fixing component includes a connecting shaft and several fixing pieces, and the upper and lower ends of the connecting shaft are The adjusting plate is connected in rotation, and several 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 present invention provides a vernier ruler for measuring central venous pressure through improvement. Compared with the prior art, the present invention has the following improvements and advantages: when in use, the fixing plate is firstly installed on the fixing rod through two fixing buckles, and then the First observe the first bubble level and the second bubble level and adjust the first adjustment component and the second adjustment component, rotate the rotary knob to drive the worm to rotate, and the worm drives the mounting plate to rotate under the drive of the worm until the first bubble level is horizontal. state, then turn the screw cap, adjust the angle between the mounting plate and the fixed plate, until the second bubble level is in a horizontal state, prevent the infusion strip in the fixed groove and rotate the fixed shaft to make the fixed piece press the infusion strip, and then proceed Adjust the zero point, and then push the moving block to move the auxiliary ruler along the length of the main ruler until the pointer and the liquid level in the infusion strip are at the same level, and then pass the main scale line on the main ruler and the sub scale line on the auxiliary ruler Read the value of central venous pressure, and make the vernier ruler for measuring central venous pressure in a horizontal state through the cooperation of the first adjustment component and the second adjustment component. Read the value of central venous pressure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment, the present invention is further explained:

Fig. 1 is three-dimensional structure schematic diagram one of the present invention;

Fig. 2 is the enlarged view of A place in Fig. 1;

Fig. 3 is the three-dimensional structure schematic diagram two of the present invention;

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

Fig. 5 is the enlarged view of B place in Fig. 4;

Description of reference numerals: mounting plate 1, fixing mechanism 2, fixing plate 2a, fixing buckle 2b, measuring mechanism 3, adjusting plate 3a, fixing groove 3a1, main scale 3b, main scale line 3b1, auxiliary scale 3c, auxiliary scale line 3c1 , moving block 3c2, pointer 3c3, first adjusting mechanism 4, worm 4a, turbine 4b, rotating shaft 4c, rotating knob 4d, fixed shaft 4e, second adjusting mechanism 5, connecting piece 5a, screw 5b, screw cap 5c, fixed Assembly 6, connecting shaft 6a, fixing piece 6b, first bubble level 7, second bubble level 8.

Detailed ways

The present invention will be described in detail below with reference to Fig. 1 to Fig. 5, and the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The present invention provides a vernier ruler for measuring central venous pressure through improvement. As shown in Figures 1-5, the technical solution of the present invention is: comprising a mounting plate 1, a fixing mechanism 2 for fixing the mounting plate 1, A measurement mechanism 3 for measuring venous pressure, a first adjustment mechanism 4 for adjusting the left and right inclination angles of the measurement mechanism 3, and a second adjustment mechanism 5 for adjusting the front and rear inclination angles of the measurement mechanism 3, the measurement mechanism 3 is installed in the installation On the front side of the plate 1, the fixing mechanism 2 is installed on the rear side of the mounting plate 1, the first adjusting mechanism 4 and the second adjusting mechanism 5 are respectively installed on the mounting plate 1 and the fixing mechanism 2, and the measuring mechanism 3 includes adjusting Plate 3a, main ruler 3b and auxiliary ruler 3c, the adjustment plate 3a is installed on the front side of the mounting plate 1, the main ruler 3b is installed on the front side of the adjustment plate 3a and the upper and lower ends of the main ruler 3b are connected with the adjustment plate. 3a is fixedly connected, 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 3b; The vernier ruler of the venous pressure is in a horizontal state, so as to ensure the accuracy of its measurement and the accuracy of the user's reading. The pointer 3c3 is aligned with the height of the liquid level in the infusion leather strip, and the main ruler 3b and the auxiliary ruler 3c cooperate with each other. Read the value of central venous pressure.

The main ruler 3b is provided with a main scale line 3b1, the auxiliary ruler 3c is provided with a secondary scale line 3c1, one side of the auxiliary ruler 3c is provided with a moving block 3c2 for moving the auxiliary ruler 3c, and the other side of the auxiliary ruler 3c is provided with a moving block 3c2. There is a pointer 3c3 on the side; the auxiliary ruler 3c is adjusted by moving the moving block 3c2, so that the auxiliary ruler 3c moves along the length direction of the main ruler 3b, and the pointer 3c3 is aligned with the liquid level in the infusion strip, and the main scale line 3b1 and The secondary scale line 3c1 reads the value of central venous pressure. Compared with the ordinary ruler, the value read by the main ruler 3b and the secondary ruler 3c is more accurate and precise.

The mounting plate 1 is provided with an accommodating cavity for installing a first adjustment mechanism 4, the first adjustment mechanism 4 includes a worm 4a, a turbine 4b, a rotating shaft 4c and a rotating knob 4d, the rotating shaft 4c is arranged horizontally, One end of the rotating shaft 4c is located in the accommodating cavity and is rotatably connected with the mounting plate 1, the other end of the rotating shaft 4c extends through the mounting plate 1 to the outside of the mounting plate 1, and the rotating knob 4d and the rotating shaft 4c are located at the outer side of the mounting plate 1. One end is fixedly connected, the side wall of the rotary knob 4d is provided with anti-skid lines, the worm 4a is sleeved on the rotating shaft 4c, the turbine 4b is located below the worm 4a and engages with the worm 4a, and the accommodating cavity is provided with Fixed shaft 4e, one end of the fixed shaft 4e is rotatably connected with the mounting plate 1, and the other end of the fixed shaft 4e runs through the turbine 4b and the mounting plate 1 and is fixedly connected with the adjustment plate 3a; The worm 4a on the rotating shaft 4c rotates together with the rotating shaft 4c, the worm 4a drives the worm wheel 4b engaged with it to rotate, the worm wheel 4b drives the fixed shaft 4e to rotate, and the fixed shaft 4e drives the mounting plate 1 to rotate so as to adjust the installation in front of the mounting plate 1. The left and right inclination angles of the side measuring mechanism 3 keep it in a horizontal state, the cooperation between the worm 4a and the turbine 4b can be adjusted infinitely, and the turbine 4b cannot drive the worm 4a to rotate, so that the mounting plate 1 will not rotate due to other external forces.

The fixing mechanism 2 includes 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 side by side, and one end of the two fixing buckles 2b is connected with the fixing plate 2a. Hinged, the other ends of the two fixing plates 2a are fixedly connected with the fixing plate 2a by bolts; the hinged connection between the fixing plate 2a and the mounting plate 1 is convenient for the second adjusting mechanism 5 to adjust the front and rear inclination angle of the mounting plate 1, and the fixed One end of the buckle 2b is hinged with the fixing plate 2a to facilitate fixing the fixing mechanism 2 .

The second adjustment mechanism 5 includes two connecting pieces 5a and two screws 5b. The two connecting pieces 5a are respectively installed on both sides of the lower end of the fixing plate 2a. The two connecting pieces 5a are provided with screw holes, and the two screws 5b are all threadedly connected with the screw holes, and the ends of the two screws 5b away from the mounting plate 1 are provided with a screw cap 5c; by rotating the screw cap 5c, the screw rod 5b is rotated. Moving in the longitudinal direction, one end of the screw rod 5b presses against the mounting plate 1 to adjust the angle between the mounting plate 1 and the fixing plate 2a, thereby adjusting the inclination angle of the mounting plate 1 front and rear.

The adjusting plate 3a is provided with a fixing groove 3a1 for engaging the infusion strap, and one end of the pointer 3c3 extends to the front of the fixing groove 3a1; the infusion strap is fixed in the fixing groove 3a1, which is convenient for the measuring mechanism 3 to adjust the infusion strap. Measure the liquid level.

The side of the fixing groove 3a1 is provided with a fixing assembly 6 for fixing the infusion leather strip. The fixing assembly 6 includes a connecting shaft 6a and several fixing pieces 6b. The upper and lower ends of the connecting shaft 6a are both rotated with the adjusting plate 3a. Connection, several fixing pieces 6b are arranged at equal intervals along the length direction of the connecting shaft 6a; by rotating the connecting shaft 6a, the fixing pieces 6b are pressed against the infusion strip in the fixing groove 3a1, and the position of the infusion strip is maintained, which is convenient for the measuring mechanism 3 Measure the height of the liquid level inside the infusion strip.

The upper end of the adjusting plate 3a is provided with a first bubble level 7, and the side wall of the mounting plate 1 is provided with a second bubble level 8; The horizontal angle is adjusted so that the measuring mechanism 3 is in a horizontal state by adjusting the first adjusting assembly and the second adjusting assembly.

The working principle of the present invention: when in use, first install the fixing plate 2a on the fixing rod through the two fixing buckles 2b, then observe the first bubble level 7 and the second bubble level 8 and adjust the first adjustment assembly and the second adjustment. The assembly is adjusted, the worm 4a is driven to rotate by rotating the rotary knob 4d, the turbine 4b drives the mounting plate 1 to rotate under the driving of the worm 4a until the first bubble level 7 is in a horizontal state, and then the rotating cap 5c is rotated to adjust the mounting plate 1 and the fixed plate. 2a, until the second bubble level 8 is in a horizontal state, prevent the infusion strip in the fixing groove 3a1 and rotate the connecting shaft 6a to make the fixed piece 6b press the infusion strip, and then adjust the zero point, and then push the moving block 3c2 , move the auxiliary ruler 3c along the length direction of the main ruler 3b until the pointer 3c3 and the liquid level in the infusion strap are at the same level, and then pass the main scale line 3b1 on the main ruler 3b and the auxiliary scale line 3c1 on the auxiliary ruler 3c Read the value of central venous pressure.

The above description of the disclosed embodiments enables 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 implemented in 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 (6)

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).

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