Balloon dilatation catheter biocompatibility testing device

Abstract

The utility model relates to the field of medical instruments, and discloses a balloon dilatation catheter biocompatibility testing device which comprises a box body, the top end of the outer wall of the box body is fixedly connected with two sets of fixing bases, the inner wall of the fixing base on the right side is provided with a limiting assembly, and the fixing bases are connected with a box cover in a clamped mode through the limiting assembly. A cable is rotationally connected to the inner side wall of the box cover, a hinge rod is hinged to the inner wall of the movable seat, two limiting blocks are fixedly connected to the inner side wall of the box body, a sliding frame is slidably connected to the inner wall of the box body, a clamping assembly is arranged in the sliding frame, and the sliding frame is connected with the machine body in a clamped mode through the clamping assembly. According to the utility model, by opening the box cover, the cable pushes the moving seat to move on the inner wall of the box body, so that the machine body is pushed to move up and down, the testing device can be conveniently taken out from the interior of the main body box through the box cover, and the purposes of convenience in carrying and high protectiveness are achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a biocompatibility testing device for a balloon dilation catheter. Background Art

[0002] A balloon dilation catheter is a medical device commonly used in interventional cardiovascular procedures or other interventional medical procedures. Its main feature is that a balloon that can be inflated is attached to the end of the catheter, which is used to dilate blood vessels or other cavity structures. When it is used, it is first necessary to test its compatibility with biological tissues, where compatibility generally refers to the compatibility between the material and the host. After a biomaterial is implanted into the human body, it has an impact on a specific biological tissue environment.

[0003] When using a balloon dilation catheter, it is necessary to test the biocompatibility between the balloon dilation catheter and the human body. However, general biocompatibility testing devices are fixed in laboratories or hospitals and do not have a portable function. When an emergency accident occurs and it is necessary to test the balloon dilation catheter at any time, it is extremely inconvenient to operate. Therefore, a biocompatibility testing device for a balloon dilation catheter is proposed to solve the above problems. Summary of the Invention

[0004] In order to make up for the above deficiencies, the utility model provides a biocompatibility testing device for a balloon dilation catheter, aiming to improve the problem that in the prior art, general biocompatibility testing devices are fixed in laboratories or hospitals and do not have a portable function.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A biocompatibility testing device for a balloon dilation catheter, including a box body, two fixing seats are fixedly connected to the top end of the outer wall of the box body, a limiting component is arranged on the inner wall of the right fixing seat, the fixing seat is clamped with a box cover through the limiting component, a cable is rotatably connected to the inner side wall of the box cover, a driven wheel is rotatably connected to the inner wall of the box body, a moving seat is slidably connected to the bottom end of the inner wall of the box body, a hinge rod is hinged to the inner wall of the moving seat, two limiting blocks are fixedly connected to the inner side wall of the box body, a sliding frame is slidably connected to the inner wall of the box body, a clamping component is arranged inside the sliding frame, and the sliding frame is clamped with an organism through the clamping component.

[0006] As a further description of the above technical solution:

[0007] A liquid filling port is arranged at the top end of the outer wall of the organism, a liquid outlet is arranged at the bottom end of the outer wall of the organism, and the clamping component includes a wedge block, and the wedge block is elastically connected to the inner wall of the sliding frame through a return spring.

[0008] As a further description of the above technical solution:

[0009] One end of the articulated rod away from the moving seat is hinged to the bottom end of the outer wall of the machine body. The cable is wound around the surface of the driven wheel, and one end of the cable away from the driven wheel is rotatably connected to the outer wall of the moving seat.

[0010] As a further description of the above technical solution:

[0011] The limiting component includes a limiting rod, and the limiting rod is elastically connected to the inner wall of the fixed seat through a limiting spring.

[0012] As a further description of the above technical solution:

[0013] The limiting rod penetrates and is slidably connected to the inner wall of the fixed seat. A clamping groove is formed on the surface of the box cover, and the bottom end of the outer wall of the limiting rod is inserted into the inner wall of the clamping groove.

[0014] As a further description of the above technical solution:

[0015] One end of the limiting spring is fixedly connected to the surface of the limiting rod, and the other end of the limiting spring is fixedly connected to the inner wall of the fixed seat.

[0016] As a further description of the above technical solution:

[0017] One end of the return spring is fixedly connected to the outer wall of the wedge block, and the other end of the return spring is fixedly connected to the inner wall of the sliding frame.

[0018] As a further description of the above technical solution:

[0019] The wedge block is slidably connected to the inner wall of the sliding frame. The machine body is slidably connected to the inner wall of the sliding frame. A slot hole is formed on the outer wall of the bottom end of the machine body. The wedge block is clamped with the inner wall of the slot hole. An inclined surface is formed on the top end of the outer wall of the wedge block, and the inclined surface is in contact with the bottom end of the outer wall of the limiting block.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, through the cooperation of the cable and the moving seat, by opening the box cover, the cable is used to push the moving seat to move on the inner wall of the box body, so as to push the machine body to move up and down. Thus, the test device can be conveniently taken out from the inside of the main box by the box cover, so as to achieve the purpose of convenient carrying and high protection.

[0022] 2. In the utility model, by arranging the sliding frame, the position of the machine body is fixed through the sliding frame, and through the split design, the machine body can be conveniently unfolded separately, so as to facilitate the staff to add and discharge the test solution inside the machine body, and the L-shaped liquid outlet can effectively prevent the test solution from remaining inside the machine body and being unable to be discharged well. Description of the Drawings

[0023] Figure 1 This is an overall three-dimensional schematic diagram of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model;

[0024] Figure 2 This is a cross-sectional schematic diagram of the fixed seat of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model;

[0025] Figure 3 This is a cross-sectional schematic diagram of the side wall of the box body of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model;

[0026] Figure 4 This is a cross-sectional schematic diagram of the box body of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model;

[0027] Figure 5 This is a cross-sectional schematic diagram of the side wall of the box body of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model;

[0028] Figure 6 This is a partial cross-sectional schematic diagram of the sliding frame of a biocompatibility testing device for a balloon dilation catheter proposed by the present utility model.

[0029] Legend description:

[0030] 1. Box body; 2. Fixed seat; 3. Box cover; 4. Cable; 5. Limit spring; 6. Limit rod; 7. Driven wheel; 8. Limit block; 9. Machine body; 10. Sliding frame; 11. Moving seat; 12. Hinge rod; 13. Filling port; 14. Liquid outlet; 15. Reset spring; 16. Wedge block. Specific implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Refer to Figures 1 - 3When the lid 3 is opened, the cable 4 is rotated to be connected with the inner wall of the box body 3, and the bottom end of the lid 3 is provided with a fixing block for fixing the cable 4. When the lid 3 is opened, the cable 4 is driven to extend and expand along the inner wall of the box body 1. The inner wall of the box body 1 is rotated and connected with a driven wheel 7. The bottom end of the inner wall of the box body 1 is slidably connected with a movable seat 11. The inner wall of the movable seat 11 is hinged with a hinged rod 12. The end of the hinged rod 12 away from the movable seat 11 is hinged at the bottom end of the outer wall of the body 9. When one end of the cable 4 follows the box cover 3 to expand, the other end drives the movable seat 11 to extend in the box body 1. When the movable seat 11 is moved, the hinged rod 12 is used to push the body 9 upward on the inner wall of the box body 1. The cable 4 is wound around the surface of the driven wheel 7, and the end of the cable 4 away from the driven wheel 7 is rotated and connected to the outer wall of the movable seat 11. The outer wall of the movable seat 11 is provided with an extension rod, and the cable 4 is rotatably connected to the extension rod, and the bottom end of the inner wall of the box body 1 is provided with a guide groove that fits the movement of the extension rod, so that the movable seat 11 can only move back and forth and cannot separate from the bottom end of the inner wall of the box body 1. The inner side wall of the box body 1 is fixedly connected with two sets of limit blocks 8. The inner wall of the box body 1 is slidably connected with a sliding frame 10. The interior of the sliding frame 10 is provided with a clamping assembly. The sliding frame 10 is clamped with the body 9 through the clamping assembly. When the body 9 is raised by the movement of the hinged rod 12, the sliding frame 10 is driven to move synchronously. The body 9 is a measuring device, and a solution for testing biocompatibility is provided inside, which is a prior art.

[0033] Reference Figures 2 - 4, the limiting component includes a limiting rod 6. A clamping block is provided at the bottom end of the limiting rod 6, which fits with the card slot of the box cover 3, so that different positions where the box cover 3 is unfolded can be fixed. The limiting rod 6 is elastically connected to the inner wall of the fixed seat 2 through a limiting spring 5. One end of the limiting spring 5 is fixedly connected to the surface of the limiting rod 6, and the other end of the limiting spring 5 is fixedly connected to the inner wall of the fixed seat 2. When the machine body 9 needs to be used, the limiting rod 6 can be pulled out and moved outward on the inner wall of the fixed seat 2, so as to rotate the box cover 3 and unfold it on the inner wall of the fixed seat 2. After unfolding, the limiting rod 6 is released and it will be affected by the elastic force of the limiting spring 5 and restored to its initial position to be inserted into the card slot of the box cover 3, so as to fix the unfolded position of the box cover 3. The limiting rod 6 penetrates and is slidably connected to the inner wall of the fixed seat 2. Card slots are provided on the surface of the box cover 3. The bottom end of the outer wall of the limiting rod 6 is inserted into the inner wall of the card slot. There are two groups of fixed seats 2. A limiting component is provided on the inner wall of one group, and the other group of box covers 3 are rotatably connected to both sides of it, and through the insertion between the two, the unfolded position of the box cover 3 is fixed, preventing the machine body 9 from automatically descending due to its own gravity and being unable to fix the unfolded position of the machine body 9.

[0034] Refer to Figures 5 - 6 , a filling port 13 is provided at the top end of the outer wall of the machine body 9. Through the filling port 13, the inside of the machine body 9 can be filled with a test solution. An outlet 14 is provided at the bottom end of the outer wall of the machine body 9. The shape of the outlet 14 is L-shaped, which is convenient for the operator to insert a pipe to replace the internal test solution after the machine body 9 extends outward. By providing the outlet 14 at the bottom end of the machine body 9, it is more convenient for the test solution to be discharged, and it will not cause the solution to remain inside the machine body 9 and be unable to be completely discharged outward. The clamping component includes a wedge block 16, and the wedge block 16 is elastically connected to the inner wall of the sliding frame 10 through a return spring 15.

[0035] Refer to Figure 6, One end of the reset spring 15 is fixedly connected to the outer wall of the wedge block 16, and the other end of the reset spring 15 is fixedly connected to the inner wall of the sliding frame 10. When the body 9 descends into the inner wall of the sliding frame 10, both ends of its outer wall will squeeze the wedge block 16 to move on the inner wall of the sliding frame 10. Until the body 9 is completely installed on the inner wall of the sliding frame 10, the wedge block 16 will be elastically acted upon by the reset spring 15 to restore it to its initial position and engage with the slot of the body 9, thereby fixing the body 9. The wedge block 16 is slidably connected to the inner wall of the sliding frame 10, the body 9 is slidably connected to the inner wall of the sliding frame 10, a slot is provided on the outer wall of the bottom end of the body 9, and the wedge block 16 is engaged with the inner wall of the slot. The top end of the outer wall of the wedge block 16 is provided with an inclined surface, and the inclined surface is in contact with the bottom end of the outer wall of the limit block 8. When replacing the solution inside the body 9, by raising the body 9, the limit block 8 is used to squeeze the inclined surface of the wedge block 16, causing it to move outward on the inner wall of the sliding frame 10, so that the wedge block 16 cancels the fixation of the body 9.

[0036] Working principle: When the body 9 needs to be used, the limit rod 6 can be pulled to make the bottom end thereof disengage from the insertion into the slot of the box cover 3, so that the box cover 3 can be rotated and unfolded on the inner wall of the fixed seat 2. When the box cover 3 is unfolded outward, it will drive the cable 4 to extend outward on the surface of the driven wheel 7. At this time, the other end of the cable 4 will drive the moving seat 11 to move outward at the bottom end of the inner wall of the box body 1. At the same time, when the moving seat 11 moves outward, it will drive the hinge rod 12 to move synchronously, so that the hinge rod 12 can push the body 9 and drive the sliding frame 10 to automatically unfold outward on the inner wall of the box body 1. At this time, when the limit rod 6 is released, it will be elastically acted upon by the limit spring 5 and restored to its initial position, so as to be inserted into the slot of the box cover 3, thereby fixing the unfolded position of the box cover 3. At this time, due to the stretching and unfolding of the cable 4, the moving seat 11 at the other end of the cable 4 is fixed at the current position by the stretching and unfolding of the cable 4.

[0037] At this time, the user can use the body 9 to perform a compatibility test on the balloon dilation catheter. After the test is completed and the solution on the inner wall of the body 9 needs to be replaced, the limit rod 6 can be continuously pulled out to disengage it from the card slot of the box cover 3, and then the box cover 3 can be rotated continuously. When the box cover 3 continues to unfold outward, it will drive the body 9 and the sliding frame 10 to move outward synchronously. When the sliding frame 10 moves to a certain position, the wedge block 16 on its inner wall will contact the arc surface of the limit block 8 inside the box body 1, so that the two wedge blocks 16 will move outward synchronously through the inclined surface of the limit block 8 to cancel the clamping of the body 9. At this time, after the sliding frame 10 cancels the fixation of the body 9, it will automatically drop to the initial position. At this time, the body 9 will continue to rise due to the movement of the hinge rod 12, so that the liquid outlet 14 at the bottom is exposed. At this time, it is convenient for the user to externally connect a pipeline to suck out the internal solution, and after sucking out, the solution can be refilled through the filling port 13.

[0038] After the use of the body 9 is completed, by closing the box cover 3, the body 9 can be restored to the initial position through the hinge rod 12. When the body 9 re-enters the inner wall of the sliding frame 10, the two ends of its outer wall will squeeze the wedge block 16 to move on the inner wall of the sliding frame 10. Until the body 9 is completely installed on the inner wall of the sliding frame 10, the wedge block 16 will be elastically acted upon by the return spring 15 to restore it to the initial position and engage with the slot of the body 9 to fix the body 9.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A biocompatibility testing device for a balloon dilation catheter, comprising a box body (1), characterized in that: At the top end of the outer wall of the box body (1), two fixing seats (2) are fixedly connected. Inside the right fixing seat (2), a limiting component is arranged. The fixing seat (2) is clamped with a box cover (3) through the limiting component. Inside the side wall of the box cover (3), a cable (4) is rotatably connected. Inside the box body (1), a driven wheel (7) is rotatably connected. At the bottom end of the inner wall of the box body (1), a moving seat (11) is slidably connected. Inside the moving seat (11), a hinged rod (12) is hinged. On the inner side wall of the box body (1), two limiting blocks (8) are fixedly connected. Inside the box body (1), a sliding frame (10) is slidably connected. Inside the sliding frame (10), a clamping component is arranged. The sliding frame (10) is clamped with a machine body (9) through the clamping component.

2. The biocompatibility testing device for a balloon dilation catheter according to claim 1, characterized in that: At the top end of the outer wall of the machine body (9), a filling port (13) is arranged. At the bottom end of the outer wall of the machine body (9), a liquid outlet (14) is arranged. The clamping component includes a wedge block (16). The wedge block (16) is elastically connected to the inner wall of the sliding frame (10) through a return spring (15).

3. The biocompatibility testing device for a balloon dilation catheter according to claim 1, characterized in that: One end of the hinged rod (12) away from the moving seat (11) is hinged to the bottom end of the outer wall of the machine body (9). The cable (4) is wound around the surface of the driven wheel (7). One end of the cable (4) away from the driven wheel (7) is rotatably connected to the outer wall of the moving seat (11).

4. The biocompatibility testing device for a balloon dilation catheter according to claim 1, wherein: The limiting component includes a limiting rod (6). The limiting rod (6) is elastically connected to the inner wall of the fixing seat (2) through a limiting spring (5).

5. The biocompatibility testing device for a balloon dilation catheter according to claim 4, wherein: The limiting rod (6) penetrates and is slidably connected to the inner wall of the fixing seat (2). On the surface of the box cover (3), a card slot is opened. The bottom end of the outer wall of the limiting rod (6) is inserted into the inner wall of the card slot.

6. The biocompatibility testing device for a balloon dilation catheter according to claim 4, wherein: One end of the limiting spring (5) is fixedly connected to the surface of the limiting rod (6). The other end of the limiting spring (5) is fixedly connected to the inner wall of the fixing seat (2).

7. The biocompatibility testing device for a balloon dilation catheter according to claim 2, characterized in that: One end of the return spring (15) is fixedly connected to the outer wall of the wedge block (16). The other end of the return spring (15) is fixedly connected to the inner wall of the sliding frame (10).

8. A balloon dilation catheter biocompatibility test device according to claim 2, characterized in that: The wedge block (16) is slidably connected to the inner wall of the sliding frame (10). The machine body (9) is slidably connected to the inner wall of the sliding frame (10). On the outer wall of the bottom end of the machine body (9), a slot hole is opened. The wedge block (16) is clamped with the inner wall of the slot hole. On the top end of the outer wall of the wedge block (16), an inclined surface is opened. The inclined surface is in contact with the bottom end of the outer wall of the limiting block (8).

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