Hemodialysis machine calibrator

Abstract

The utility model relates to the technical field of blood treatment equipment, in particular to a hemodialysis machine calibrator which comprises a calibrator body, the calibrator body is connected with a clamping and detecting assembly through a connecting line, the clamping assembly comprises a clamping module and a detecting module, and the clamping module is used for clamping a pipeline of a hemodialysis machine; the clamping module comprises clamping pieces, the clamping pieces are symmetrically arranged, the two sides of a supporting column are rotationally connected with one sides of the clamping pieces correspondingly, the back faces of the two clamping pieces are fixedly provided with a set of symmetrically-arranged connecting blocks from top to bottom correspondingly, the connecting blocks are in a U shape, and the connecting blocks are hinged to the two sides of a limiting ring correspondingly. The two ends of the guide shaft penetrate through each pair of limiting rings correspondingly, through cooperative work of the clamping module and the detection module, clamping of a hemodialysis instrument pipeline and detection of the flow speed of liquid in the pipeline are achieved, and calibration is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of blood processing equipment, in particular to a hemodialysis machine calibrator. Background Art

[0002] In hemodialysis treatment, the hemodialysis machine is a critical medical device that maintains life by removing waste products and excess water from the patient's blood. To ensure the safety and effectiveness of dialysis treatment, the hemodialysis machine requires regular calibration and testing.

[0003] After searching, a hemodialysis machine detector calibration device with application number CN216695616U specifically relates to the field of medical devices, including a calibrator. A handle is provided on the top of the calibrator, and a protective bottom shell is provided on the outer side of the bottom of the calibrator. The bottom end of the calibrator is located on the inner side of the bottom of the protective bottom shell and is connected to several buffer components, and protective components are connected between the two outer side walls of the bottom of the calibrator and the two inner side walls of the protective bottom shell.

[0004] The buffer assembly provided in the above-mentioned prior art can reduce the impact force generated when the calibrator is placed, and improve the protection of the calibrator during the placement process, but it still relies on the use of a traditional calibrator. During calibration, the flow rate needs to be measured manually by holding the pipeline and using the speed measurement module of the calibrator, which is easily affected by human factors, resulting in inaccurate calibration results. Summary of the Invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a hemodialysis machine calibrator that, through the coordinated operation of a clamping module and a detection module, achieves clamping of the hemodialysis machine tubing and detection of the flow rate of the liquid within the tubing, thereby facilitating calibration.

[0006] According to an embodiment of the present invention, a hemodialysis machine calibrator includes a calibrator body, wherein the calibrator body is connected to a clamping detection assembly via a connecting line, the clamping detection assembly includes a clamping module and a detection module, and the clamping module is used to clamp the pipeline of the hemodialysis machine;

[0007] The clamping module includes a clamping piece, which is symmetrically arranged. Both sides of the support column are rotatably connected to one side of the clamping piece. A group of symmetrically arranged connecting blocks are fixed on the back of the two clamping pieces from top to bottom. The connecting blocks are U-shaped, and each connecting block is hinged to both sides of a limiting ring. Each pair of limiting rings is passed through the two ends of a guide shaft respectively. Each limiting ring is fixedly connected to one end of a spring, and the other end of each spring is fixedly connected to the two ends of the corresponding connecting ring. The connecting ring fixes the center of the guide shaft, and the guide shaft passes through the spring.

[0008] The clamping pieces are respectively connected to the detection modules.

[0009] As a further limitation of the present technical solution, the detection module includes a plurality of openings arranged on the clamping plate, and the clamping plate is evenly arranged from top to bottom. A protruding block is respectively provided in each of the openings, and the protruding block fixes the clamping plate. The protruding blocks respectively rotate the connecting screw, and one end of the screw is rotated to connect the housing of the sensor, and the housing of the sensor fixes one end of a small spring, and the other end of the small spring is fixedly connected to the protruding block.

[0010] As a further limitation of the present technical solution, the inner wall of the clamping piece is an inwardly concave arc surface, and the other side of the clamping piece is an inwardly bent side.

[0011] As a further limitation of the present technical solution, there are three pairs of connecting blocks, which are respectively fixed on the upper end, the lower end and the middle position of the back side of the clamping piece.

[0012] As a further limitation of the present technical solution, handles are respectively fixed on the upper sides of the two connecting blocks in the middle position.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. Through the coordinated work of the clamping module and the detection module, the clamping and detection of the hemodialysis instrument pipeline are realized;

[0015] 2. The design of the clamping piece makes the clamping process more stable and precise. Through the cooperation of the spring and the limit ring, the pipeline is reliably clamped.

[0016] 3. By setting a handle, the opening and closing of the clamping piece is more convenient, and the user can easily operate it by simply pinching the handle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the utility model Figure 1 ;

[0020] Figure 2 This is a schematic diagram of a partial three-dimensional structure of an embodiment of the utility model;

[0021] Figure 3 For an embodiment of the present utility model Figure 2A partial enlarged view of point A in the middle;

[0022] Figure 4 For an embodiment of the present utility model Figure 2 A partial enlarged view of point B in the middle.

[0023] Figure markings: 1. Calibrator body, 2. Connecting line, 3. Clamping detection assembly, 31. Connecting block 32. Limiting ring, 33. Spring, 34. Guide shaft, 35. Connecting ring, 36. Support column, 37. Clamping piece, 38. Detection module, 381. Sensor, 382. Small spring, 383. Protruding block, 384. Screw. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as the orientations or positional relationships indicated by up, down, inside, outside, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Since the existing hemodialysis machine needs to manually hold the pipeline and use the speed measurement module of the calibrator to measure the flow rate during calibration, it is easily affected by human factors and has certain limitations.

[0029] To this end, the present invention proposes a hemodialysis machine calibrator, as shown in the accompanying drawings.

[0030] Reference Figures 1-4As shown, a hemodialysis machine calibrator according to an embodiment of the present invention includes a calibrator body 1, wherein the calibrator body 1 is connected to a clamping detection assembly 3 via a connecting line 2, wherein the clamping detection assembly 3 includes a clamping module and a detection module 38, wherein the clamping module is used to clamp the pipeline of the hemodialysis machine;

[0031] The clamping module includes a clamping piece 37, which is symmetrically arranged. Both sides of the support column 36 are rotatably connected to one side of the clamping piece 37. A group of symmetrically arranged connecting blocks 31 are fixed on the back of the two clamping pieces 37 from top to bottom. The connecting blocks 31 are U-shaped, and each connecting block 31 is hinged to both sides of a limiting ring 32. Each pair of limiting rings 32 is passed through the two ends of a guide shaft 34 respectively. Each limiting ring 32 is fixedly connected to one end of a spring 33 respectively, and the other end of each spring 33 is fixedly connected to the two ends of a corresponding connecting ring 35 respectively. The connecting ring 35 fixes the center of the guide shaft 34, and the guide shaft 34 passes through the spring 33.

[0032] The clamping pieces 37 are respectively connected to the detection modules 38 .

[0033] In this embodiment, the dialyzer pipeline is clamped by using a clamping module. When one side of the hinged support column 36 on the back of the clamping piece 37 swings towards each other, the other side opens away from each other. During this process, the connecting block 31 swings, and the connecting block 31 drives the limit ring 32 to swing. The limit ring 32 moves along the guide shaft 34, and the spring 33 elastically forms a plate to clamp the clamping piece 37 on the dialyzer pipeline. When the clamping piece 37 is released, the spring 33 rebounds, and the clamping piece 37 swings in the opposite direction to clamp the pipeline.

[0034] The detection module 383 includes a plurality of openings 371 arranged on the clamping piece 37, and the clamping piece 37 is evenly arranged from top to bottom. A protruding block 383 is respectively provided in each of the openings 371, and the protruding block 383 fixes the clamping piece 37. The protruding block 383 rotates the connecting screw 384 respectively, and one end of the screw 384 rotates to connect the outer shell of the sensor 381. The outer shell of the sensor 381 fixes one end of the small spring 382, and the other end of the small spring 382 is fixedly connected to the protruding block 383.

[0035] In this embodiment, by setting up a detection module 38, the flow rate and other information in the dialyzer pipeline can be detected. The sensor 381 is a flow rate sensor. Furthermore, the flow rate sensor is a non-contact flow rate sensor, which can monitor the flow rate of the liquid in the pipeline in real time and display it on the display screen of the calibrator body 1. When the clamping piece 37 clamps the pipeline, the contact of the sensor 381 contacts the pipeline. If there is no contact with the pipeline, the sensor 381 can be driven to move by rotating the screw 384, and the small spring 382 undergoes elastic deformation to achieve the contact of the sensor 381 contacting the pipeline.

[0036] The inner wall of the clamping piece 37 is an inwardly concave arc surface, and the other side of the clamping piece 37 is an inwardly bent side.

[0037] There are three pairs of connecting blocks 31 , which are fixed on the upper end, lower end and middle position of the back side of the clamping piece 37 respectively.

[0038] Handles 311 are fixed to the upper sides of the two connecting blocks 31 in the middle.

[0039] The handle 311 is provided to facilitate the swinging of the connecting block 31 by pinching the handle, thereby driving the clamping piece 37 to swing.

[0040] When in use, pinch the handle 311 and move the two handles 311 towards each other, driving the connecting block 31 and the clamping piece 37 to swing. When the clamping piece 37 is opened and close to the pipeline, release the handle 311, and the clamping piece 37 closes to clamp the pipeline. The contact of the sensor 381 contacts the outer wall of the pipeline. If there is no contact, the sensor 381 can be driven to move by rotating the screw 384 to make it contact the pipeline, and then subsequent operations can be performed.

[0041] The above describes the embodiments of the present invention in detail with reference to the accompanying drawings. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hemodialysis machine calibrator, comprising a calibrator body (1), characterized in that: The calibrator body (1) is connected to a clamping detection assembly (3) via a connecting line (2), the clamping detection assembly (3) comprising a clamping module and a detection module (38), the clamping module being used to clamp the pipeline of the hemodialysis instrument; The clamping module includes a clamping piece (37), the clamping piece (37) is symmetrically arranged, and the two sides of the support column (36) are respectively rotatably connected to one side of the clamping piece (37), and a group of symmetrically arranged connecting blocks (31) are fixed on the back of the two clamping pieces (37) from top to bottom, and the connecting blocks (31) are U-shaped, and each connecting block (31) is respectively hinged to the two sides of the limiting ring (32), and each pair of the limiting rings (32) is respectively passed through by the two ends of the guide shaft (34), and each limiting ring (32) is respectively fixed to one end of the spring (33), and the other end of each spring (33) is respectively fixed to the two ends of the corresponding connecting ring (35), and the connecting ring (35) fixes the center of the guide shaft (34), and the guide shaft (34) passes through the spring (33); The clamping pieces (37) are respectively connected to the detection modules (38).

2. The hemodialysis machine calibrator according to claim 1, characterized in that: The detection module (38) includes a plurality of openings (371) provided on the clamping piece (37), the clamping piece (37) being evenly arranged from top to bottom, and a protruding block (383) being provided in each of the openings (371), the protruding block (383) fixing the clamping piece (37), the protruding block (383) rotatingly connecting the screw rod (384), one end of the screw rod (384) rotatingly connecting the housing of the sensor (381), the housing of the sensor (381) fixing one end of a small spring (382), the other end of the small spring (382) being fixedly connected to the protruding block (383).

3. The hemodialysis machine calibrator according to claim 1 or 2, characterized in that: The inner wall of the clamping piece (37) is an inwardly concave arc surface, and the other side of the clamping piece (37) is an inwardly bent side.

4. The hemodialysis machine calibrator according to claim 3, characterized in that: The connecting blocks (31) are in three pairs, respectively fixed at the upper end, the lower end and the middle position of the back side of the clamping piece (37).

5. The hemodialysis machine calibrator according to claim 4, characterized in that: Handles (311) are respectively fixed on the upper sides of the two connecting blocks (31) at the middle position.

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