Medical force value detection calibration device

Abstract

The utility model relates to medical instrument detection technical field, concretely is a kind of medical force value detection calibration device, including bottom plate, the bottom plate top is fixedly connected with pedestal, the pedestal one side is equipped with fixed block, the fixed block is fixedly connected on bottom plate upper surface, the fixed block is close to the rotationally connected with pivot of pedestal one side, the pedestal top is fixedly installed with knife edge fulcrum, the knife edge fulcrum top is equipped with lever force measuring component;The lever force measuring component includes lever main part and two universal fixture components Lever main part side is equipped with the aperture that can be rotatably connected with pivot, the lever main part bottom is rotatably connected in the surface of knife edge fulcrum, the upper surface fixed mounting of lever main part aperture place is equipped with horizontal block, and the one end of horizontal block is equipped with weight loading assembly.The utility model, by setting lever force measuring component, the push-in force of syringe is carried out quickly check.

Description

Technical Field

[0001] This utility model relates to the field of medical device testing, and in particular to a medical force value testing and calibration device. Background Technology

[0002] In the medical field, the force exerted by a syringe during injection directly and significantly affects the actual effectiveness of medical diagnosis and treatment, and is also closely related to the patient's life safety and health; therefore, ensuring that the mechanical properties of these instruments meet the standard requirements is an important prerequisite for ensuring medical quality and patient safety.

[0003] In daily work, it has been found that the detection of injection force during syringe injection relies heavily on electronic force sensors; however, such electronic devices are expensive and require periodic calibration. Therefore, there is a need for a simple, stable, reliable calibration device for syringe injection force detection that does not require an external power supply. Utility Model Content

[0004] The purpose of this invention is to address the problem that the detection of injection force during syringe injection relies heavily on electronic force sensors; however, such electronic devices are costly and require periodic calibration. Therefore, this invention proposes a medical force value detection and calibration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a medical force value detection and calibration device, comprising a base plate, a base fixedly connected to the top of the base plate, a fixing block provided on one side of the base plate, the fixing block being fixedly connected to the upper surface of the base plate, a rotating shaft being rotatably connected to the side of the fixing block near the base plate, a blade fulcrum fixedly installed on the top of the base plate, and a lever force measuring component provided on the top of the blade fulcrum. The lever force measuring assembly includes a lever body and two universal clamp assemblies. The lever body has an opening on its side that can be rotatably connected to a rotating shaft. The bottom of the lever body is rotatably connected to the surface of the knife-edge fulcrum. A horizontal block is fixedly installed on the upper surface of the opening of the lever body. A weight loading assembly is provided at one end of the horizontal block. One of the universal clamp assemblies is located at the other end of the lever body, and the other universal clamp assembly is located on the upper surface of the base plate.

[0006] Preferably, the weight loading assembly includes two slide rails, which are symmetrically installed on the upper surface of the lever body. A first slider is slidably connected to the surfaces of the two slide rails. Two baffles are fixedly installed at both ends of the slide rails. A first screw is rotatably connected to the middle position of the two baffles. The first screw is located in the middle position of the two slide rails. An adjusting handwheel is fixedly installed at the end of the first screw away from the horizontal block. The adjusting handwheel is rotatably connected to the surface of the baffle away from the first screw.

[0007] Preferably, the surface of the first slider has a threaded hole, which is threadedly connected to the first screw. The upper surface of the first slider has a slot, where a standard weight is placed. A pointer is fixedly installed on one side of the first slider.

[0008] Preferably, the two universal clamping assemblies include a mounting block, a second slider, and a first clamping block. One mounting block is rotatably connected to the end of the lever body, and the other mounting block is fixedly mounted on the upper surface of the base plate. The two mounting blocks are radially aligned. The surface of the mounting block has a second slot, and a second screw is rotatably connected to the surface of the second slot. An adjusting cap is fixedly mounted at the end of the second screw, and the adjusting cap is rotatably mounted on the side of the mounting block away from the second screw. The surface of the second slider has a threaded hole that is threadedly connected to the second screw, and the second slider is slidably connected to the second slot of the mounting block. There are two first clamping blocks, one of which is fixedly mounted on the surface of the mounting block near the adjusting cap, and the other is fixedly mounted on the upper surface of the second slider.

[0009] Preferably, the first clamping block has two slots three at one end near the second screw, and a second clamping block is rotatably connected to the slots three of the first clamping block. The second clamping block has two slots four at one end near the second screw, and a third clamping block is rotatably connected to the slots four of the second clamping block.

[0010] Preferably, the lever body has a horizontal support plate at its bottom, the horizontal support plate is located on the side near the weight loading component, the end of the horizontal support plate is fixedly installed with a pull rope that is fixedly connected to the bottom of the lever body, and a counterweight is placed on the top of the horizontal support plate.

[0011] Preferably, a first scale is fixedly installed on the side of the fixed block near the lever body, and a second scale is fixedly installed on the surface of the lever body near the pointer.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by adjusting the number of counterweights on the surface of the horizontal support plate, the horizontal blocks are aligned with the zero position of the first scale, maintaining the lever body in an initial balanced state for subsequent adjustments. Rotating the adjusting handwheel drives the first screw, causing the first slider to slide on the slide rail surface under the drive of the first screw, thus changing the lever arm length. Using standard weights and the value indicated by the pointer on the second scale, the force-applying end of the lever body is adjusted to the standard torque, at which point the lever will rotate counterclockwise by a certain angle. Next, the syringe to be tested is vertically mounted on the universal clamp assembly. Specifically, rotating the adjusting cap causes the second screw to rotate, thereby driving the second slider and the first... The clamping block is brought closer to the first clamping block mounted on the surface of the mounting block. The second and third clamping blocks, located in the universal clamp assembly at one end of the lever body, clamp the piston end of the syringe. The second and third clamping blocks below the lever end clamp the syringe barrel. When contacting syringes of different sizes, the second and third clamping blocks will rotate to adapt to syringes of different sizes and clamp the syringe to be tested. Finally, the syringe to be tested is operated by pressing the lever body evenly. During this process, the lever will rotate clockwise. If the horizontal block points back to the zero position of the first scale, the injection force of the syringe is the standard value, thus realizing the rapid calibration of the injection force of the syringe. Attached Figure Description

[0013] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a medical force value detection and calibration device; Figure 2 This invention provides a schematic diagram of the structure of a lever force measuring component in a medical force value detection and calibration device; Figure 3 This utility model provides a structural schematic diagram of the base and lever body of a medical force value detection and calibration device; Figure 4 This utility model provides a structural schematic diagram of a weight loading component for a medical force value detection and calibration device; Figure 5 This invention presents a schematic diagram of the universal clamp assembly of a medical force value detection and calibration device.

[0014] Legend: 1. Base plate; 2. Base; 21. Knife-edge fulcrum; 3. Fixing block; 31. Rotating shaft; 4. Lever force measuring assembly; 41. Weight loading assembly; 411. Adjusting handwheel; 412. Baffle; 413. Slide rail; 414. First screw; 415. First slider; 4151. Standard weight; 4152. Pointer; 42. Universal clamp assembly; 421. Mounting block; 422. Second screw; 423. Adjusting cap; 424. Second slider; 425. First clamping block; 4251. Second clamping block; 4252. Third clamping block; 43. Horizontal support plate; 431. Counterweight block; 432. Pull rope; 44. Horizontal block; 45. Lever body; 51. First scale; 52. Second scale. Detailed Implementation

[0015] Please see Figure 1-5 This utility model provides a technical solution: a medical force value detection and calibration device, including a base plate 1, a base 2 fixedly connected to the top of the base plate 1, a fixing block 3 provided on one side of the base 2, the fixing block 3 fixedly connected to the upper surface of the base plate 1, a rotating shaft 31 rotatably connected to the side of the fixing block 3 near the base 2, a blade fulcrum 21 fixedly installed on the top of the base 2, and a lever force measuring component 4 provided on the top of the blade fulcrum 21.

[0016] In this embodiment: the lever force measuring component 4 includes a lever body 45 and two universal clamp components 42. The lever body 45 has an opening on its side that can be rotatably connected to the rotating shaft 31. The bottom of the lever body 45 is rotatably connected to the surface of the knife-edge fulcrum 21. A horizontal block 44 is fixedly installed on the upper surface of the opening of the lever body 45. One end of the horizontal block 44 is provided with a weight loading component 41. One universal clamp component 42 is set at the other end of the lever body 45, and the other universal clamp component 42 is set on the upper surface of the base plate 1.

[0017] Specifically, the weight loading assembly 41 includes two slide rails 413, which are symmetrically installed on the upper surface of the lever body 45. A first slider 415 is slidably connected to the surfaces of the two slide rails 413. Two baffles 412 are fixedly installed at both ends of the slide rails 413. A first screw 414 is rotatably connected to the middle position of the two baffles 412. The first screw 414 is located in the middle position of the two slide rails 413. An adjusting handwheel 411 is fixedly installed at the end of the first screw 414 away from the horizontal block 44. The adjusting handwheel 411 is rotatably connected to the surface of the baffle 412 away from the first screw 414.

[0018] Specifically, the first slider 415 has a threaded hole through its surface, which is threaded to the first screw 414. The upper surface of the first slider 415 has a slot, where a standard weight 4151 is placed. A pointer 4152 is fixedly installed on one side of the first slider 415.

[0019] In this embodiment: the adjustment handwheel 411 can be rotated, which will drive the first screw 414. The first slider 415 will slide on the surface of the slide rail 413 under the drive of the first screw 414, thereby changing the lever arm length.

[0020] Specifically, the two universal clamping assemblies 42 include a mounting block 421, a second slider 424, and a first clamping block 425. One mounting block 421 is rotatably connected to the end of the lever body 45, and the other mounting block 421 is fixedly mounted on the upper surface of the base plate 1. The two mounting blocks 421 are radially aligned. The surface of the mounting block 421 has a second slot. A second screw 422 is rotatably connected to the surface of the second slot of the mounting block 421. An adjusting cap 423 is fixedly mounted at the end of the second screw 422. The adjusting cap 423 is rotatably mounted on the side of the mounting block 421 away from the second screw 422. The surface of the second slider 424 has a threaded hole 2 that is threadedly connected to the second screw 422. The second slider 424 is slidably connected to the second slot of the mounting block 421. There are two first clamping blocks 425. One first clamping block 425 is fixedly mounted on the surface of the mounting block 421 near the adjusting cap 423, and the other first clamping block 425 is fixedly mounted on the upper surface of the second slider 424.

[0021] In this embodiment: rotating the adjusting cap 423 causes the second screw 422 to rotate, thereby driving the second slider 424 and the first clamping block 425 mounted on the upper surface of the second slider 424 to move closer to the first clamping block 425 mounted on the surface of the mounting block 421.

[0022] Specifically, the first clamping block 425 has two slots three at one end near the second screw 422, and the second clamping block 4251 is rotatably connected to the slots three of the first clamping block 425. The second clamping block 4251 has two slots four at one end near the second screw 422, and the third clamping block 4252 is rotatably connected to the slots four of the second clamping block 4251.

[0023] In this embodiment: when contacting syringes of different sizes, the second clamping block 4251 and the third clamping block 4252 will rotate to adapt to syringes of different sizes. The second clamping block 4251 and the third clamping block 4252 located in the universal clamp assembly 42 at one end of the lever body 45 clamp the piston end of the syringe, and the second clamping block 4251 and the third clamping block 4252 below the lever end clamp the syringe barrel.

[0024] Specifically, the lever body 45 has a horizontal support plate 43 at the bottom, the horizontal support plate 43 is located on the side near the weight loading component 41, the end of the horizontal support plate 43 is fixedly installed with a pull rope 432 that is fixedly connected to the bottom of the lever body 45, and a counterweight block 431 is placed on the top of the horizontal support plate 43.

[0025] In this embodiment: the number of counterweights 431 on the surface of the horizontal support plate 43 is adjusted to keep the lever body 45 in an initial balanced state.

[0026] Specifically, a first scale 51 is fixedly installed on the side of the fixed block 3 near the lever body 45, and a second scale 52 is fixedly installed on the surface of the lever body 45 near the pointer 4152.

[0027] In this embodiment, the force-applying end of the lever body 45 can be adjusted to the standard torque by using the value of the second scale 52 indicated by the standard weight 4151 and the pointer 4152.

[0028] Working principle: Adjust the number of counterweights 431 on the surface of the horizontal support plate 43 so that the horizontal block 44 points to the zero position of the first scale 51, keeping the lever body 45 in an initial balanced state for subsequent adjustments; rotate the adjusting handwheel 411, which drives the first screw 414, and the first slider 415 slides on the surface of the slide rail 413 under the drive of the first screw 414, thereby changing the lever arm length. By using the standard weight 4151 and the value indicated by the pointer 4152 on the second scale 52, the force-applying end of the lever body 45 is adjusted to the standard torque, at which point the lever will rotate counterclockwise by a certain angle; next, vertically install the syringe of the syringe to be tested on the universal clamp assembly 42. Specifically, rotate the adjusting cap 423 to rotate the second screw 422, thereby driving the second slider 424 and the upper surface of the second slider 424 to be mounted on the universal clamp assembly 42. The first clamping block 425 is installed so that it moves closer to the first clamping block 425 installed on the surface of the mounting block 421. The second clamping block 4251 and the third clamping block 4252 located in the universal clamp assembly 42 at one end of the lever body 45 clamp the piston end of the syringe. The second clamping block 4251 and the third clamping block 4252 below the lever end clamp the syringe barrel. When contacting syringes of different sizes, the second clamping block 4251 and the third clamping block 4252 will rotate to adapt to syringes of different sizes and clamp the syringe to be tested. Finally, the syringe to be tested is operated by pressing the lever body 45 evenly. During this process, the lever will rotate clockwise. If the horizontal block 44 points back to the zero position of the first scale 51, the injection force of the syringe is the standard value, thus realizing the rapid calibration of the injection force of the syringe.

[0029] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A medical force value detection and calibration device, comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to the top of the base (2), and a fixing block (3) is provided on one side of the base (2). The fixing block (3) is fixedly connected to the upper surface of the base plate (1). The fixing block (3) is rotatably connected to the side of the base (2) near the fixing block (3). A knife-edge fulcrum (21) is fixedly installed on the top of the base (2), and a lever force measuring component (4) is provided on the top of the knife-edge fulcrum (21). The lever force measuring component (4) includes a lever body (45) and two universal clamp components (42). The lever body (45) has an opening on its side that can be rotatably connected to the rotating shaft (31). The bottom of the lever body (45) is rotatably connected to the surface of the knife-edge fulcrum (21). A horizontal block (44) is fixedly installed on the upper surface of the opening of the lever body (45). A weight loading component (41) is provided at one end of the horizontal block (44). One of the universal clamp components (42) is set at the other end of the lever body (45), and the other universal clamp component (42) is set on the upper surface of the base plate (1).

2. The medical force value detection and calibration device according to claim 1, characterized in that: The weight loading assembly (41) includes two slide rails (413) symmetrically mounted on the upper surface of the lever body (45). A first slider (415) is slidably connected to the surfaces of the two slide rails (413). Two baffles (412) are fixedly mounted at both ends of the slide rails (413). A first screw (414) is rotatably connected to the middle position of the two baffles (412). The first screw (414) is located in the middle position of the two slide rails (413). An adjusting handwheel (411) is fixedly mounted at the end of the first screw (414) away from the horizontal block (44). The adjusting handwheel (411) is rotatably connected to the surface of the baffle (412) away from the first screw (414).

3. The medical force value detection and calibration device according to claim 2, characterized in that: The first slider (415) has a threaded hole through its surface. The threaded hole of the first slider (415) is threadedly connected to the first screw (414). The upper surface of the first slider (415) has a slot. A standard weight (4151) is placed at one of the slots of the first slider (415). A pointer (4152) is fixedly installed on one side of the first slider (415).

4. The medical force value detection and calibration device according to claim 1, characterized in that: The two universal clamp assemblies (42) include a mounting block (421), a second slider (424), and a first clamping block (425). One mounting block (421) is rotatably connected to the end of the lever body (45), and the other mounting block (421) is fixedly mounted on the upper surface of the base plate (1). The two mounting blocks (421) are radially aligned. A second slot is provided on the surface of the mounting block (421), and a second screw (422) is rotatably connected to the surface of the second slot of the mounting block (421). An adjusting cap (423) is fixedly mounted on the end of the second screw (422). The adjusting cap (423) is rotatably mounted on the side of the mounting block (421) away from the second screw (422). The surface of the second slider (424) is provided with a threaded hole two that is threaded to the second screw (422). The second slider (424) is slidably connected to the slot two of the mounting block (421). There are two first clamping blocks (425). One first clamping block (425) is fixedly mounted on the surface of the mounting block (421) near the adjusting cap (423), and the other first clamping block (425) is fixedly mounted on the upper surface of the second slider (424).

5. A medical force value detection and calibration device according to claim 4, characterized in that: The first clamping block (425) has two slots three at one end near the second screw (422). The first clamping block (425) is rotatably connected to the slots three. The second clamping block (4251) has two slots four at one end near the second screw (422). The second clamping block (4251) is rotatably connected to the slots four. The second clamping block (4252) is rotatably connected to the slots four.

6. The medical force value detection and calibration device according to claim 1, characterized in that: The lever body (45) has a horizontal support plate (43) at the bottom. The horizontal support plate (43) is located on the side close to the weight loading component (41). A pull rope (432) that is fixedly connected to the bottom of the lever body (45) is fixedly installed at the end of the horizontal support plate (43). A counterweight block (431) is placed on the top of the horizontal support plate (43).

7. The medical force value detection and calibration device according to claim 1, characterized in that: The first scale (51) is fixedly installed on the side of the fixed block (3) near the lever body (45), and the second scale (52) is fixedly installed on the surface of the lever body (45) near the pointer (4152).

Images