Catheter balloon diameter measuring device

By designing a catheter balloon diameter measuring device, the roundness of the balloon is detected using a horn cover and electrical connection, which solves the problem of out-of-roundness in balloon outer diameter detection and achieves high-precision balloon detection results.

CN223940257UActive Publication Date: 2026-02-24KOSSEL MEDTECH (SUZHOU) CO LTD
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Patent Information

Application Number
CN202520123482.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-24
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In existing technologies, the outer diameter of balloons is not round enough, which leads to cumulative tolerances in the processing and assembly processes, resulting in unqualified balloon dimensions and making it difficult to meet the requirements of high-precision applications.

Method used

A catheter balloon diameter measuring device was designed, including a support plate, a catheter balloon component, an installation assembly, and a detection assembly. By utilizing the cooperation of a horn cover, a first electrical contact point, an elastic sheet, and a second electrical contact point, the roundness of the balloon is determined by detecting whether the balloon touches all the elastic sheets after inflation. The detection is achieved through an electrical connection method.

Benefits of technology

It enables high-precision detection of the outer diameter of the balloon, ensuring the roundness of the balloon, improving the accuracy and consistency of the detection, and meeting the requirements of high-precision applications.

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Abstract

The utility model discloses a catheter balloon diameter measuring device, which relates to the field of diameter measuring devices, and comprises a bearing plate, a mounting assembly arranged at the top of the bearing plate and used for clamping and fixing the end part of a catheter balloon piece, and a detection assembly comprising a horn cover, a first power connection point, an elastic sheet and a second power connection point, the catheter balloon part is sleeved with the horn cover, the first power connection point and the second power connection point are installed at the end of the horn cover in an annular array mode, the elastic pieces are installed in the horn cover in an annular array mode, one ends of the elastic pieces are electrically connected with the first power connection point, and the other ends of the elastic pieces correspond to the second power connection point. According to the utility model, the bearing plate, the catheter balloon piece, the mounting assembly and the detection assembly are matched for use, after the balloon is inflated, the balloon is in contact with all the elastic sheets after inflation, and the first power connection point and the second power connection point are communicated, the catheter balloon piece is detected to be qualified, and otherwise, the catheter balloon piece is detected to be unqualified.
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Description

Technical Field

[0001] This utility model relates to the field of diameter measuring devices, and in particular to a catheter balloon diameter measuring device. Background Technology

[0002] Balloon catheters have a wide range of applications in the field of medical devices. Their intended uses include, but are not limited to, dilating blood vessels, device positioning, conducting heat energy, stent delivery, and occlusion sealing. Therefore, the outer diameter of the balloon is closely related to the treatment effect. Currently, balloon molding is mainly carried out by blow molding, which involves heating a tubular material and inflating it by blowing in gas to form the initial shape of the balloon.

[0003] For scenarios with high requirements for the outer diameter of the balloon, due to the shrinkage characteristics of the material and the cumulative tolerances of the processing and assembly processes, the final balloon may be out of round. When performing circularity testing on the balloon, as disclosed in patent 201721789434.X, a multi-point balloon diameter measuring fixture is used, including a support frame, a balloon testing platform, a high-precision dial indicator, and a balloon end sealing clamp. This means that some parts are not within the size range, resulting in the overall size of the balloon being within the tolerance range. Utility Model Content

[0004] The purpose of this invention is to provide a catheter balloon diameter measuring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a catheter balloon diameter measuring device, comprising:

[0006] A support plate and a catheter balloon assembly, wherein the catheter balloon assembly is disposed on top of the support plate;

[0007] The mounting assembly is disposed on the top of the support plate and is used to clamp and fix the end of the catheter balloon component.

[0008] Detection component, the detection component includes:

[0009] A horn cover, which is fitted over the outside of the catheter balloon assembly;

[0010] The first and second power contacts are respectively arranged in a circular array and installed at the end of the speaker cover.

[0011] An elastic sheet is installed in a ring array inside the speaker cover. One end of the elastic sheet is electrically connected to a first electrical contact point, and the other end of the elastic sheet corresponds to a second electrical contact point.

[0012] Preferably, the mounting components include:

[0013] An electric clamp is slidably mounted on the top of a support plate and is used to clamp and fix one end of the catheter balloon component.

[0014] An inflation mechanism is slidably disposed on the top of the support plate, and the inflation mechanism is connected to the other end of the catheter balloon component.

[0015] Preferably, a slide rail is fixedly connected to the top of the support plate, and a connecting seat is slidably sleeved on the outside of the slide rail. The electric clamp and the inflation mechanism are respectively installed on the top of the connecting seat.

[0016] Preferably, a mounting bracket is fixedly installed on the outside of the horn cover, the bottom of the mounting bracket is fixedly connected to the connecting seat, and the connection point between the electric clamp and the catheter balloon component and the connection point between the inflation mechanism and the catheter balloon component are both located on the axis of the horn cover.

[0017] Preferably, a first terminal block and a second terminal block are fixedly installed on the top of the mounting bracket. The first terminal block is electrically connected to a first contact point, and the second terminal block is electrically connected to a second contact point.

[0018] Preferably, a control box is provided on the side of the support plate, and an indicator light is installed on the top of the control box. The control box is electrically connected to the first terminal block, the second terminal block, the electric clamp, and the inflation mechanism.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] This utility model utilizes the combined use of a support plate, a catheter balloon component, an installation assembly, and a detection assembly. The detection assembly includes a horn cover, a first contact point, an elastic sheet, and a second contact point. When the balloon is inflated, the catheter balloon component is considered qualified only if the inflated balloon touches all the elastic sheets and connects the first and second contact points; otherwise, the catheter balloon component is considered unqualified. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of one side of this utility model.

[0022] Figure 2 This is a schematic diagram of the overall structure of the other side of this utility model.

[0023] Figure 3 This is a front structural diagram of the present utility model.

[0024] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0025] Figure 5 This utility model Figure 2Enlarged structural diagram at point B.

[0026] In the diagram: 1. Support plate; 2. Catheter balloon assembly; 3. Mounting assembly; 31. Electric clamp; 32. Inflation mechanism; 33. Slide rail; 34. Connecting seat; 4. Detection assembly; 41. Horn cover; 42. First power contact point; 43. Elastic sheet; 44. Second power contact point; 45. Mounting bracket; 46. First terminal block; 47. Second terminal block; 5. Control box. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides, for example Figure 1-5 The device shown includes a catheter balloon diameter measuring device, comprising a support plate 1, a catheter balloon component 2, a mounting assembly 3, and a detection assembly 4. The catheter balloon component 2 is disposed on the top of the support plate 1, and the mounting assembly 3 is disposed on the top of the support plate 1. The mounting assembly 3 is used to clamp and fix the end of the catheter balloon component 2. The detection assembly 4 includes a horn cover 41, a first contact point 42, an elastic sheet 43, and a second contact point 44. The horn cover 41 is sleeved on the outside of the catheter balloon component 2. Multiple first contact points 42 and multiple second contact points 44 are respectively arranged in a ring array at the end of the horn cover 41. Multiple elastic sheets 43 are arranged in a ring array inside the horn cover 41. One end of the elastic sheet 43 is electrically connected to the first contact point 42, and the other end of the elastic sheet 43 is electrically connected to the second contact point 44. The electrical contact point 44 corresponds to the first electrical contact point 42, the elastic sheet 43, and the second electrical contact point 44 on the horn cover 41, forming multiple induced currents on the horn cover 41. After the catheter balloon component 2 is inflated, the balloon portion of the catheter balloon component 2 expands, and the balloon portion of the catheter balloon component 2 compresses the elastic sheet 43. The other end of the elastic sheet 43 is in contact with the second electrical contact point 44, thus connecting the first electrical contact point 42 and the second electrical contact point 44. This allows the detection of whether the multiple induced currents on the horn cover 41 are connected, i.e., whether the corresponding first electrical contact point 42 and second electrical contact point 44 are connected. If all the sensing points inside the horn cover 41 are connected, the catheter balloon component 2 passes the test; otherwise, the catheter balloon component 2 fails the test.

[0029] Furthermore, the installation assembly 3 includes an electric clamp 31 and an inflation mechanism 32. The electric clamp 31 is slidably disposed on the top of the support plate 1 and is used to clamp and fix one end of the catheter balloon component 2. The inflation mechanism 32 is slidably disposed on the top of the support plate 1 and is connected to the other end of the catheter balloon component 2. The inflation mechanism 32 consists of an air pump, a pipe, and a locking nut. The other end of the catheter balloon component 2 is sleeved on the outside of the pipe. The locking nut locks the catheter balloon component 2 outside the pipe. The air pump can then inject air into the catheter balloon component 2, causing the balloon part of the catheter balloon component 2 to inflate. A slide rail 33 is fixedly connected to the top of the support plate 1. A connecting seat 34 is slidably sleeved on the outside of the slide rail 33. The electric clamp 31 and the inflation mechanism 32 are respectively installed on the top of the connecting seat 34.

[0030] Furthermore, a mounting bracket 45 is fixedly installed on the outside of the horn cover 41. The bottom of the mounting bracket 45 is fixedly connected to the connecting seat 34. The connection point between the electric clamp 31 and the catheter balloon component 2 and the connection point between the inflation mechanism 32 and the catheter balloon component 2 are both located on the axis of the horn cover 41. Thus, when the air pump inflates the catheter balloon component 2, the balloon part of the catheter balloon component 2 expands from the center to the side inside the horn cover 41. The top of the mounting bracket 45 is fixedly installed with a first terminal 46 and a second terminal 47. The first terminal 46 is electrically connected to the first contact point 42, and the second terminal 47 is electrically connected to the second contact point 44. The mounting bracket 45 can slide on the slide rail 33 through the connecting seat 34. After the catheter balloon component 2 is inflated, the mounting bracket 45 can also drive the horn cover 41 to slide toward the balloon part on the catheter balloon component 2 to test the catheter balloon component 2.

[0031] Furthermore, a control box 5 is provided on the side of the support plate 1, and an indicator light is installed on the top of the control box 5. When the catheter balloon component 2 passes the test, the indicator light on the control box 5 lights up green; when the catheter balloon component 2 fails the test, the indicator light on the control box 5 lights up red. The control box 5 is electrically connected to the first terminal 46, the second terminal 47, the electric clamp 31, and the inflation mechanism 32.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A catheter balloon diameter measuring device, characterized in that, include: A support plate (1) and a catheter balloon component (2), wherein the catheter balloon component (2) is disposed on the top of the support plate (1); Mounting assembly (3), which is disposed on the top of the support plate (1), is used to clamp and fix the end of the catheter balloon component (2); Detection component (4), the detection component (4) comprising: A horn cover (41) is fitted over the outside of the catheter balloon component (2); The first contact point (42) and the second contact point (44) are respectively arranged in a ring array at the end of the speaker cover (41); Elastic sheet (43) is installed in a ring array inside the speaker cover (41). One end of the elastic sheet (43) is electrically connected to the first contact point (42), and the other end of the elastic sheet (43) corresponds to the second contact point (44).

2. The catheter balloon diameter measuring device according to claim 1, characterized in that, The installation component (3) includes: An electric clamp (31) is slidably disposed on the top of the support plate (1) and is used to clamp and fix one end of the catheter balloon component (2). An inflation mechanism (32) is slidably disposed on the top of the support plate (1) and is connected to the other end of the catheter balloon component (2).

3. The catheter balloon diameter measuring device according to claim 2, characterized in that, The top of the bearing plate (1) is fixedly connected to a slide rail (33), and a connecting seat (34) is slidably sleeved on the outside of the slide rail (33). The electric clamp (31) and the inflation mechanism (32) are respectively installed on the top of the connecting seat (34).

4. The catheter balloon diameter measuring device according to claim 3, characterized in that, The outside of the horn cover (41) is fixedly installed with a mounting bracket (45). The bottom of the mounting bracket (45) is fixedly connected to the connecting seat (34). The connection point between the electric clamp (31) and the catheter balloon component (2) and the connection point between the inflation mechanism (32) and the catheter balloon component (2) are both located on the axis of the horn cover (41).

5. The catheter balloon diameter measuring device according to claim 4, characterized in that, The top of the mounting bracket (45) is fixedly mounted with a first terminal (46) and a second terminal (47). The first terminal (46) is electrically connected to the first contact point (42), and the second terminal (47) is electrically connected to the second contact point (44).

6. The catheter balloon diameter measuring device according to claim 5, characterized in that, A control box (5) is provided on the side of the support plate (1). An indicator light is installed on the top of the control box (5). The control box (5) is electrically connected to the first terminal (46), the second terminal (47), the electric clamp (31), and the inflation mechanism (32).

Citation Information

Patent Citations

  • Construction installation equipment is calibrated to multipoint mode sacculus

    CN207751425U