Device for testing half-in-vitro blood compatibility of cardiovascular medical instrument

Abstract

The utility model relates to the field of medical instruments, and discloses a cardiovascular medical instrument half in-vitro blood compatibility testing device which comprises testing equipment, a placing groove is formed in the right side of the front surface of the testing equipment, a second rectangular groove is formed in the inner wall of the placing groove, and a clamping assembly is arranged on the inner wall of the second rectangular groove. A limiting assembly is arranged on the front surface of the clamping assembly, a third rectangular groove is formed in the bottom end of the inner wall of the containing groove, an adjusting assembly is arranged on the inner wall of the third rectangular groove, the clamping assembly comprises a sliding block, the rear surface of the sliding block is slidably connected to the inner wall of the second rectangular groove, and a platform is fixedly connected to the front surface of the sliding block. The inner wall of the bottom end of the platform is rotationally connected with a rotating plate. According to the blood sample detection device, by arranging the clamping assembly, a blood sample can be fixed, the detection stability is improved, meanwhile, under the cooperation of the limiting assembly, the clamping assembly can be prevented from loosening in the clamping process, and the clamping stability is improved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a semi-in vitro blood compatibility testing device for cardiovascular medical devices. Background Art

[0002] The semi-in vitro blood compatibility test device for cardiovascular medical devices is a device used to evaluate the interaction between cardiovascular medical devices and blood. When testing blood compatibility, some devices place blood and other biological materials in a test tube for mixing before the blood is aspirated into the device for testing. Some test devices do not have fixed components, and the operator may need to hold the test tube by hand to fix it. During this process, the operator may need to operate the device's display to set data. This process is too cumbersome and has low practicality.

[0003] After searching, Chinese patent publication number: CN217879209U discloses a semi-in vitro blood compatibility testing device for cardiovascular medical devices, including a tester, a storage assembly and a disassembly assembly. The storage assembly is installed in the tester. The storage assembly is specifically composed of a folding plate, a rotating rod, a support sleeve, a rotating shaft, a support plate, a limit rod, a limit spring, a limit hole, a compression spring, a top block, a slide groove, a magnetic block, a storage groove and a baffle. The bottom of the two sides of the folding plate are connected to the bottom end of the support plate through a rotating shaft, the top of the support rod is connected to the inner side of the bottom end of the support sleeve through a rotating shaft, and the top of the support sleeve is connected to the two sides of the bottom of the storage groove through a rotating shaft, so as to provide folding protection for the display panel and the operation panel. Slide rails are opened on both sides of the folding plate and a screw rod is inserted. The screw rod is meshed with the driving gear at the bottom end of the transmission shaft through a driven gear, and the two ends of the screw rod surface are threadedly connected to the screw blocks at the bottom of the splint, so as to fix the display panel and the operation panel through four sets of splints.

[0004] In the above-mentioned technology, the device provided does not have a structure to fix the test piece. Since the bottom of most test tubes has a certain curvature, the operator may need to hold the sample during the test. This process is too time-consuming and labor-intensive, reducing work efficiency. Therefore, a semi-in vitro blood compatibility testing device for cardiovascular medical devices is proposed to solve the above-mentioned problem. Summary of the Invention

[0005] In order to make up for the above shortcomings, the utility model provides a semi-in vitro blood compatibility testing device for cardiovascular medical devices, aiming to improve the problems of some testing devices in the prior art that are unable to fix samples and have low stability.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a semi-in vitro blood compatibility testing device for cardiovascular medical devices, including a testing device, a placement groove is opened on the right side of the front surface of the testing device, the inner wall of the placement groove is provided with a rectangular groove 2, the inner wall of the rectangular groove 2 is provided with a clamping assembly, the front surface of the clamping assembly is provided with a limiting assembly, the bottom end of the inner wall of the placement groove is provided with a rectangular groove 3, the inner wall of the rectangular groove 3 is provided with an adjustment assembly, the clamping assembly includes a slider, the rear surface of the slider is slidably connected to the inner wall of the rectangular groove 2, the front surface of the slider is fixedly connected to a platform, and the inner wall of the bottom end of the platform is rotatably connected to a rotating plate.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly includes a hinge block, which is slidably connected to the inner wall of rectangular slot three. A threaded rod is threaded through the right surface of the hinge block, and the threaded rod is rotatably connected to the bottom end of the right surface of the test equipment.

[0009] As a further description of the above technical solution:

[0010] The limiting assembly includes a rectangular shell, which is fixedly connected to the front surface of the platform. The inner wall of the rectangular shell is elastically connected to a block via a spring. The block is slidably connected to the inner wall of the rectangular shell. One end of the spring is fixedly connected to the inner wall of the rectangular shell, and the other end of the spring is fixedly connected to the upper surface of the block.

[0011] As a further description of the above technical solution:

[0012] A through groove is provided on the upper surface of the platform, an arc-shaped through groove is provided on the upper surface of the rotating plate, a round rod is passed through the inner wall of the through groove for sliding connection, the outer wall of the bottom end of the round rod is passed through and slidably connected to the inner wall of the arc-shaped through groove, a clamping block is fixedly connected to the upper surface of the round rod, and a rectangular groove is provided on the upper surface of the rotating plate, and there are multiple groups of them.

[0013] As a further description of the above technical solution:

[0014] The adjustment assembly also includes a concave block, the upper surface of the concave block is fixedly connected to the right end of the lower surface of the platform, the inner wall of the concave block is hinged with a connecting plate, and the left end of the connecting plate is hinged to the inner wall of the top of the hinge block.

[0015] As a further description of the above technical solution:

[0016] The left surface of the clamping block is made of rubber.

[0017] As a further description of the above technical solution:

[0018] The top of the lower surface of the card block is fixedly connected with a push plate, the front surface of the rectangular shell is provided with a through slot 2, the push plate passes through and is slidably connected to the inner wall of the through slot 2, and the bottom end of the card block contacts the inner wall of the rectangular slot 1.

[0019] As a further description of the above technical solution:

[0020] The block is in a trapezoidal shape, and the lower surface is configured as an inclined surface.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by providing a clamping assembly, the blood sample can be fixed, thereby increasing the stability of the test. At the same time, with the cooperation of the limit assembly, the clamping assembly can be prevented from loosening during the clamping process, thereby improving the stability of the clamping.

[0023] 2. In the present invention, the height of the clamping assembly can be adjusted by the provided adjustment assembly, so that the straw of the device can be smoothly placed inside the test tube, thereby improving the practicality of the test. At the same time, the test device can test the blood inside test tubes of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the platform and threaded rod three-dimensional structure in the present invention;

[0026] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged three-dimensional structure of the A region.

[0027] Legend:

[0028] 1. Test equipment; 2. Placement slot; 3. Clamping assembly; 31. Platform; 32. Clamping block; 33. Slider; 34. Round rod; 35. Through slot 1; 36. Arc-shaped through slot; 37. Turn plate; 38. Rectangular slot 1; 4. Rectangular slot 2; 5. Adjustment assembly; 51. Threaded rod; 52. Concave block; 53. Connecting plate; 54. Hinge block; 6. Rectangular slot 3; 7. Limiting assembly; 71. Rectangular shell; 72. Spring; 73. Block; 74. Push plate; 75. Through slot 2. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 2 , the utility model provides an embodiment: a semi-in vitro blood compatibility testing device for cardiovascular medical devices, comprising a testing device 1, a placement slot 2 is provided on the right side of the front surface of the testing device 1, the inner wall of the placement slot 2 is provided with a rectangular slot 2 4, the inner wall of the rectangular slot 2 4 is provided with a clamping component 3, the clamping component 3 can fix the test tube, and the operator does not need to hold the test tube all the time, which increases the operator's comfort and the stability of the test tube, a limiting component 7 is provided on the front surface of the clamping component 3, a rectangular slot 3 6 is provided at the bottom end of the inner wall of the placement slot 2, an adjustment component 5 is provided on the inner wall of the rectangular slot 3 6, the clamping component 3 includes a slider 33, the rear surface of the slider 33 is slidably connected to the inner wall of the rectangular slot 2 4, the front surface of the slider 33 is fixedly connected to a platform 31, and the inner wall of the bottom end of the platform 31 is rotatably connected to a rotating plate 37.

[0031] Reference Figure 2 The adjustment component 5 includes a hinge block 54, which is slidably connected to the inner wall of the rectangular groove three 6. A threaded rod 51 is threadedly connected to the right surface of the hinge block 54. The threaded rod 51 is a prior art and has the characteristics of left and right self-locking, which makes the connection between the structures more stable. The threaded rod 51 is rotatably connected to the bottom end of the right surface of the test equipment 1.

[0032] Reference Figure 2 、 Figure 3 The limit assembly 7 includes a rectangular shell 71, which is fixedly connected to the front surface of the platform 31. The inner wall of the rectangular shell 71 is elastically connected to a block 73 through a spring 72. The spring 72 itself has a certain elasticity and always pushes the block 73 to move downward to ensure the stability of the block 73. The block 73 is slidably connected to the inner wall of the rectangular shell 71. One end of the spring 72 is fixedly connected to the inner wall of the rectangular shell 71, and the other end of the spring 72 is fixedly connected to the upper surface of the block 73. The block 73 is trapezoidal in shape, and the lower surface is set to an inclined surface. The inclined surface enables the clamping assembly 3 to quickly clamp the test tube, thereby improving work efficiency.

[0033] Reference Figure 2 、 Figure 3The upper surface of the platform 31 is provided with a through groove 35, which can ensure that the round rod 34 can only move horizontally. The upper surface of the rotating plate 37 is provided with an arc-shaped through groove 36. The arc-shaped through groove 36 has a certain slope and gradually tilts toward the center of the rotating plate 37, which has a guiding effect on the movement of the round rod 34. The inner wall of the through groove 35 is slidably connected with the round rod 34, and the outer wall of the bottom end of the round rod 34 is slidably connected to the inner wall of the arc-shaped through groove 36. The upper surface of the round rod 34 is fixedly connected with a clamping block 32, and the upper surface of the rotating plate 37 is provided with a rectangular groove 38, and the number is multiple. Multiple groups of rectangular grooves 38 are provided, so that the clamping assembly 3 can clamp test tubes of different diameters, thereby improving practicality. The left surface of the clamping block 32 is made of rubber material, and the rubber material provided can prevent the test tube from being damaged.

[0034] Reference Figure 2 The adjustment assembly 5 also includes a concave block 52, the upper surface of the concave block 52 is fixedly connected to the right end of the lower surface of the platform 31, and the inner wall of the concave block 52 is hinged with a connecting plate 53. The left end of the connecting plate 53 is hinged to the inner wall of the top of the hinge block 54. When the threaded rod 51 is rotated to move the platform 31 through the connecting plate 53, the slider 33 provided will make the platform 31 move smoothly.

[0035] Reference Figure 3 The top of the lower surface of the block 73 is fixedly connected to a push plate 74. The push plate 74 is provided to facilitate the operator to release the limit of the block 73 on the rotating plate 37, thereby improving practicality. A through slot 2 75 is provided on the front surface of the rectangular shell 71. The push plate 74 passes through and is slidably connected to the inner wall of the through slot 2 75. The bottom end of the block 73 contacts the inner wall of the rectangular slot 1 38.

[0036] Working principle: During the test, it is only necessary to place the test tube with the mixed sample between the multiple groups of clamping blocks 32. Then, the rotating plate 37 can be rotated. At this time, the bottom end of the round rod 34 will slide on the inner wall of the arc-shaped through groove 36 and move along the amplitude of the arc-shaped through groove 36. At the same time, under the guidance of the through groove 1 35, the multiple groups of round rods 34 will drive the multiple groups of clamping blocks 32 to slowly retract and clamp the test tube. In this process, the rotating plate 37 will push the block 73 upward along the inclined surface. The block 73 will squeeze the spring 72 and the inner wall of the rectangular groove 1 38 at the same time. When the locking cam 73 is in the unlocked position, the locking cam 73 is locked and the locking cam 73 is in the unlocked position, and the locking cam 73 is locked.

[0037] When the height needs to be adjusted, it is only necessary to rotate the threaded rod 51. At this time, the hinge block 54 threadedly connected to the outer wall of the threaded rod 51 will slide on the inner wall of the rectangular groove 3 6, and the left end of the connecting plate 53 will also rotate with it, and the right end of the connecting plate 53 will rotate between the concave block 52. In this way, the platform 31 can be moved upward and the height of the test tube will also change accordingly. After the adjustment is completed, just stop rotating. The threaded rod 51 itself has the characteristic of left and right self-locking, which ensures that the platform 31 will not move downward without rotating the threaded rod 51.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A semi-in vitro blood compatibility testing device for cardiovascular medical devices, comprising a testing device (1), characterized in that: A placement slot (2) is provided on the right side of the front surface of the test device (1), the inner wall of the placement slot (2) is provided with a rectangular slot 2 (4), the inner wall of the rectangular slot 2 (4) is provided with a clamping assembly (3), the front surface of the clamping assembly (3) is provided with a limit assembly (7), the bottom end of the inner wall of the placement slot (2) is provided with a rectangular slot 3 (6), the inner wall of the rectangular slot 3 (6) is provided with an adjustment assembly (5), the clamping assembly (3) includes a slider (33), the rear surface of the slider (33) is slidably connected to the inner wall of the rectangular slot 2 (4), the front surface of the slider (33) is fixedly connected to a platform (31), and the inner wall of the bottom end of the platform (31) is rotatably connected to a rotating plate (37).

2. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 1, characterized in that: The adjustment assembly (5) includes a hinge block (54), the hinge block (54) is slidably connected to the inner wall of the rectangular slot three (6), and a threaded rod (51) is threadedly connected through the right surface of the hinge block (54), and the threaded rod (51) is rotatably connected to the bottom end of the right surface of the test device (1).

3. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 1, characterized in that: The limiting assembly (7) includes a rectangular shell (71), the rectangular shell (71) is fixedly connected to the front surface of the platform (31), the inner wall of the rectangular shell (71) is elastically connected to a clamping block (73) via a spring (72), the clamping block (73) is slidably connected to the inner wall of the rectangular shell (71), one end of the spring (72) is fixedly connected to the inner wall of the rectangular shell (71), and the other end of the spring (72) is fixedly connected to the upper surface of the clamping block (73).

4. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 3, characterized in that: A through groove (35) is provided on the upper surface of the platform (31), an arcuate through groove (36) is provided on the upper surface of the rotating plate (37), a round rod (34) is slidably connected to the inner wall of the through groove (35), an outer wall of the bottom end of the round rod (34) is slidably connected to the inner wall of the arcuate through groove (36), a clamping block (32) is fixedly connected to the upper surface of the round rod (34), and a plurality of rectangular grooves (38) are provided on the upper surface of the rotating plate (37).

5. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 2, characterized in that: The adjustment assembly (5) further comprises a concave block (52), the upper surface of the concave block (52) being fixedly connected to the right end of the lower surface of the platform (31), the inner wall of the concave block (52) being hinged with a connecting plate (53), and the left end of the connecting plate (53) being hinged to the inner wall of the top end of the hinge block (54).

6. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 4, characterized in that: The left surface of the clamping block (32) is made of rubber.

7. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 4, characterized in that: The top end of the lower surface of the clamping block (73) is fixedly connected to a push plate (74), the front surface of the rectangular shell (71) is provided with a through slot 2 (75), the push plate (74) penetrates and is slidably connected to the inner wall of the through slot 2 (75), and the bottom end of the clamping block (73) contacts the inner wall of the rectangular slot 1 (38).

8. The semi-in vitro blood compatibility testing device for cardiovascular medical devices according to claim 3, characterized in that: The block (73) is in a trapezoidal shape, and the lower surface is configured as an inclined surface.

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