CN108309269A - A kind of vernier ruler of measuring center vein pressure - Google Patents

Abstract

The invention relates to the field of medical devices, 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, the measuring mechanism is installed in front of the mounting plate side, 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 adjusting plate, a main scale and a secondary scale, and the adjusting 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 can be moved along the main ruler. The ruler moves in the length direction, and the present invention makes the vernier ruler for measuring central venous pressure in a horizontal state through the cooperation of the first adjustment assembly and the second adjustment assembly, and can be more precise and accurate through the simultaneous work of the main ruler and the auxiliary ruler. Read the central venous pressure.

Description

A vernier ruler for measuring central venous pressure

technical field

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

Background technique

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

Existing instruments for measuring central venous pressure are directly fixed on the mounting rod, and the pressure measuring tube is fixed on the manometer, and the zero point is adjusted before use, and then the measurement is started. Measure 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 and cannot be used for precise measurement. Second, 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 measuring instrument, and will also affect the accuracy of the user's readings.

Contents of the invention

The object 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-mentioned background technology.

The technical solution of the present invention is to include 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 angle of the measuring mechanism, and a first adjusting mechanism for adjusting the front and rear inclination of the measuring mechanism. The second adjustment mechanism of the angle, the measuring mechanism is installed on the front side of the installation plate, 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, The measuring mechanism includes an adjustment plate, a main scale and an auxiliary scale, the adjustment plate is installed on the front side of the installation plate, the main scale is installed on the front side of the adjustment plate and the upper end and the lower end of the main scale 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 ruler is provided with a main scale line, the auxiliary scale is provided with a sub-scale line, and one side of the auxiliary scale is provided with a moving block for moving the auxiliary scale. There are hands on the other side.

In a preferred embodiment of the present invention, the mounting plate is provided with an accommodating cavity for installing the first adjustment mechanism, the first adjustment mechanism includes a worm, a worm gear, a rotating shaft and a rotating knob, and the rotating shaft is horizontal It is provided that one end of the rotating shaft is located in the housing cavity and is connected to the mounting plate in rotation, 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 to the end of the rotating shaft located outside the mounting plate, and the rotating knob There are anti-skid lines on the side wall, the worm is sleeved on the rotating shaft, the worm gear is located below the worm and meshed with the worm, the accommodating cavity is provided with a fixed shaft, and one end of the fixed shaft is rotatably connected with the mounting plate , the other end of the fixed shaft passes through 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 fixing plates are hinged, and the other ends of the two fixing plates are fixedly connected with the fixing plates by bolts.

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

In a preferred embodiment of the present invention, the adjustment 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 assembly for fixing the infusion thong is provided on the side of the fixing groove, the fixing assembly includes a connecting shaft and several fixing pieces, the upper end and the lower end of the connecting shaft are connected with the The adjusting plate is rotatably connected, 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, a first bubble level is provided on the upper end of the adjustment plate, and a second bubble level is provided on the side wall of the installation plate.

The present invention provides a vernier ruler for measuring central venous pressure through improvement. Compared with the prior art, it has the following improvements and advantages: when in use, the fixing plate is first installed on the fixing rod through two fixing buckles, and then First observe the first bubble level and the second bubble level and adjust the first adjustment component and the second adjustment component, turn the rotary knob to drive the worm to rotate, and the turbine drives the mounting plate to rotate under the drive of the worm until the first bubble level is at the level 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, put the infusion thong in the fixing groove and turn the fixed shaft to press the fixed piece to the infusion thong, 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 is at the same level as the liquid level in the infusion thong, and then pass through the main scale line on the main scale and the auxiliary scale line on the auxiliary scale Read the value of the central venous pressure, through the cooperation of the first adjustment component and the second adjustment component, the vernier ruler for measuring the central venous pressure is in a horizontal state, and the simultaneous work of the main scale and the auxiliary scale can be more precise and accurate Read the central venous pressure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention will be further explained:

Fig. 1 is a three-dimensional structural schematic diagram 1 of the present invention;

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

Fig. 3 is a three-dimensional structural schematic diagram II of the present invention;

Fig. 4 is a sectional view of the present invention;

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

Description of reference signs: mounting plate 1, fixing mechanism 2, fixing plate 2a, fixing buckle 2b, measuring mechanism 3, adjusting plate 3a, fixing groove 3a1, main ruler 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, fixed piece 6b, first bubble level 7, second bubble level 8.

Detailed ways

The present invention will be described in detail below in conjunction with accompanying drawings 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The present invention provides a vernier ruler for measuring central venous pressure through improvement, as shown in Fig. 1-Fig. 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 rear inclination angles of the measuring mechanism 3, the measuring mechanism 3 is installed on the installation 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 an adjusting Plate 3a, main ruler 3b and auxiliary ruler 3c, described adjusting plate 3a is installed on the front side of mounting plate 1, and described main ruler 3b is installed on the front side of adjusting plate 3a and the upper end and the lower end of main ruler 3b are all with adjusting 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; through the cooperative work of the first adjustment mechanism 4 and the second adjustment mechanism 5, the measurement center 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 thong, and the main ruler 3b and the auxiliary ruler 3c work together to achieve Read the central venous pressure.

The main scale 3b is provided with a main scale line 3b1, the auxiliary scale 3c is provided with a secondary scale line 3c1, one side of the secondary scale 3c is provided with a moving block 3c2 for moving the secondary scale 3c, and the other side of the secondary scale 3c 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, passing through the main scale line 3b1 and The secondary scale line 3c1 reads the value of the central venous pressure. Compared with ordinary ruler measurement, the value read by the cooperation of the main scale 3b and the secondary scale 3c is more accurate and accurate.

The mounting plate 1 is provided with an accommodating cavity for installing the first adjusting mechanism 4, the first adjusting 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 on the outside of the mounting plate 1 One end is fixedly connected, the side wall of the rotary knob 4d is provided with anti-slip lines, the worm 4a is sleeved on the rotating shaft 4c, the worm wheel 4b is located below the worm 4a and meshes with the worm 4a, and the accommodating cavity is provided with The fixed shaft 4e, one end of the fixed shaft 4e is rotationally 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 in turn and is fixedly connected with the adjusting plate 3a; the rotary shaft 4c is driven to rotate by turning the rotary knob 4d, and the installation The worm 4a on the rotating shaft 4c rotates together with the rotating shaft 4c, the worm 4a drives the worm gear 4b meshed with it to rotate, the worm gear 4b drives the fixed shaft 4e to rotate, and the fixed shaft 4e drives the mounting plate 1 to rotate so as to be adjusted and installed in front of the mounting plate 1 The left and right inclination angle of the measuring mechanism 3 on the side keeps it in a horizontal state, and the cooperation between the worm 4a and the turbine 4b can be adjusted without limit, 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 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 side by side, and one end of the two fixing buckles 2b is connected to the fixing plate 2a Hinged, the other ends of the two fixed plates 2a are fixedly connected with the fixed plates 2a by bolts; the hinged connection between the fixed plates 2a and the mounting plate 1 is convenient for the second adjustment mechanism 5 to adjust the front and rear inclination angles of the mounting plate 1, and fix One end of the buckle 2b is hinged with the fixing plate 2a to facilitate fixing the fixing mechanism 2 .

Described second adjusting mechanism 5 comprises two connecting pieces 5a and two screw rods 5b, and two connecting pieces 5a are respectively installed on the lower end both sides of fixed plate 2a, and screw holes are all provided on the two connecting pieces 5a, two screw rods 5b are all threadedly connected with the screw holes, and the ends of the two screw rods 5b far away from the mounting plate 1 are provided with screw caps 5c; by turning the screw caps 5c, the screw rods 5b are rotated, and because the screw rods 5b are threadedly matched with the screw holes, the screw rods 5b will move along its Moving along the length 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 back.

The adjusting plate 3a is provided with a fixing groove 3a1 for engaging the infusion thong, and one end of the pointer 3c3 extends to the front of the fixing groove 3a1; the infusion thong is fixed in the fixing groove 3a1, so that the measurement mechanism 3 pairs of infusion thongs The height of the liquid level is measured.

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

The upper end of the regulating 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; Horizontal angle, so that the measuring mechanism 3 is in a horizontal state by adjusting the first adjustment assembly and the second adjustment assembly.

The working principle of the present invention: first install the fixing plate 2a on the fixing bar through two fixing buckles 2b when in use, then first 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, by turning the rotary knob 4d to drive the worm 4a to rotate, the turbine 4b is driven by the worm 4a to drive the mounting plate 1 to rotate until the first bubble level 7 is in a horizontal state, and then turn the screw cap 5c to adjust the mounting plate 1 and the fixed plate 2a, until the second bubble level 8 is in a horizontal state, put the infusion strip in the fixed groove 3a1 and turn the connecting shaft 6a to make the fixed piece 6b press the infusion strip, 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 is at the same level as the liquid level in the infusion strip, and then pass the main scale line 3b1 on the main scale 3b and the auxiliary scale line 3c1 on the auxiliary scale 3c Read the central venous pressure.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not 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 (8)

1. a kind of vernier ruler of measuring center vein pressure, it is characterised in that：Including mounting plate（1）, be used for fixed mounting plate（1） Fixed mechanism（2）, measuring mechanism for measuring vein pressure（3）, for adjusting measuring mechanism（3）The of the angle that tilts One regulating mechanism（4）With for adjusting measuring mechanism（3）Tilt forward and back the second regulating mechanism of angle（5）, the measuring mechanism （3）Mounted on mounting plate（1）Front side, fixed mechanism（2）Mounted on mounting plate（1）Rear side, first regulating mechanism（4） With the second regulating mechanism（5）It is separately mounted to mounting plate（1）And fixed mechanism（2）On, the measuring mechanism（3）Including adjustable plate （3a）, main scale（3b）And auxiliary scale（3c）, the adjustable plate（3a）Mounted on mounting plate（1）Front side, the main scale（3b）Installation In adjustable plate（3a）Front side and main scale（3b）Top and bottom and adjustable plate（3a）It is fixedly connected, the auxiliary scale（3c）Set It is located at main scale（3b）Upper and auxiliary scale（3c）It can be along main scale（3b）Length direction movement.

2. a kind of vernier ruler of measuring center vein pressure according to claim 1, it is characterised in that：The main scale（3b） It is equipped with main scale mark（3b1）, auxiliary scale（3c）It is equipped with subscale mark（3c1）, the auxiliary scale（3c）Side be equipped with for moving Dynamic auxiliary scale（3c）Movable block（3c2）, auxiliary scale（3c）The other side be equipped with pointer（3c3）.

3. a kind of vernier ruler of measuring center vein pressure according to claim 2, it is characterised in that：The mounting plate （1）It is interior to be equipped with for installing the first regulating mechanism（4）Accommodating chamber, first regulating mechanism（4）Including worm screw（4a）, turbine （4b）, rotation axis（4c）And rotation button（4d）, the rotation axis（4c）In horizontally disposed, rotation axis（4c）One end be located at accommodate Intracavitary and and mounting plate（1）Rotation connection, rotation axis（4c）The other end run through mounting plate（1）Extend to mounting plate（1）It is outer Side, the rotation button（4d）With rotation axis（4c）Positioned at mounting plate（1）The one end in outside is fixedly connected, rotation button（4d）Side wall It is equipped with anti-skid chequer, the worm screw（4a）It is set in rotation axis（4c）On, the turbine（4b）Positioned at worm screw（4a）Lower section and With worm screw（4a）Engagement, the accommodating chamber is interior to be equipped with fixing axle（4e）, fixing axle（4e）One end and mounting plate（1）Rotation connects It connects, fixing axle（4e）The other end sequentially pass through turbine（4b）And mounting plate（1）And and adjustable plate（3a）It is fixedly connected.

4. a kind of vernier ruler of measuring center vein pressure according to claim 1, it is characterised in that：The fixed mechanism （2）Including fixed plate（2a）With two fixing buckles（2b）, the fixed plate（2a）Upper end and mounting plate（1）Hinged, two solid Fixed button（2b）In being set up in parallel, two fixing buckles（2b）One end and fixed plate（2a）It is hinged, two fixed plates（2a）It is another One end is and fixed plate（2a）It is bolted to connection.

5. a kind of vernier ruler of measuring center vein pressure according to claim 1, it is characterised in that：Described second is adjusted Mechanism（5）Including two connection sheets（5a）With two screw rods（5b）, two connection sheets（5a）It is separately mounted to fixed plate（2a）'s Lower end both sides, two connection sheets（5a）On be equipped with screw hole, two screw rods（5b）It is threadedly coupled with screw hole, two screw rods（5b） Far from mounting plate（1）One end be equipped with turncap（5c）.

6. a kind of vernier ruler of measuring center vein pressure according to claim 3, it is characterised in that：The adjustable plate （3a）It is equipped with the fixing groove for engaging infusion strap（3a1）, the pointer（3c3）One end extend to fixing groove（3a1） Front.

7. a kind of vernier ruler of measuring center vein pressure according to claim 6, it is characterised in that：The fixing groove （3a1）Side be equipped with fixation kit for fixing infusion strap（6）, the fixation kit（6）Including connecting shaft（6a）With Several fixinig plates（6b）, the connecting shaft（6a）Top and bottom and adjustable plate（3a）Rotation connection, several are fixed Piece（6b）Along connecting shaft（6a）Length direction be equally arranged.

8. a kind of vernier ruler of measuring center vein pressure according to claim 7, it is characterised in that：The adjustable plate （3a）Upper end be equipped with first bubble level meter（7）, the mounting plate（1）Side wall be equipped with the second air-bubble level（8）.