Conduit torsion angle and rotation torque detection and test device

Abstract

A guide pipe torsion angle and rotation torque testing device relates to the technical field of guide pipe production and comprises a mobile control module, a dynamic torque output module is fixedly arranged on the upper side of the mobile control module, and a circulating constant-temperature water bath module is arranged on the side portion of the mobile control module. A combined pipeline module is arranged at the front part of the upper side of the circulating constant-temperature water bath module, an angle testing module and a torque testing module are arranged at the rear part of the upper side of the circulating constant-temperature water bath module, and a PC end control system is fixedly arranged at the side position of the upper part of the circulating constant-temperature water bath module. A torque test item of the medical catheter can be completed, meanwhile, a rotation angle test item of the medical catheter can be completed by fixing the far end of the medical catheter on the rotation angle measurement module, and in the process, the catheter can be placed in the simulation pipeline module to be tested under different paths. And a test result in a human body internal temperature environment simulated by water injection and heating of the water tank can be output.

Description

Technical Field

[0001] The utility model relates to the technical field of catheter production, in particular to a catheter torsion angle and rotation torque testing device. Background Art

[0002] Precision medical catheters are a general term for tubular products that connect the inside and outside of the human body. There are products made of different materials such as metal, plastic, and rubber. They are widely used as pathways in drainage, perfusion, drug administration, blood collection, blood transmission, detecting the condition of organisms through sensing elements, and assisting the introduction of other medical devices.

[0003] Precision medical catheters have the characteristics of small size, complex shape, high geometric accuracy, high hygiene index, and high biochemical stability. The production of medical catheters is very difficult, and conventional plastic equipment cannot meet their production requirements. Medical catheters are of various types and materials, which are restricted by production equipment and supporting production process technology.

[0004] Medical catheters are divided into two categories: ordinary catheters and special catheters according to their structure and function characteristics. Sheaths, intracavitary stents, etc. are used in conjunction with catheters. In the production of catheters, it is necessary to accurately measure the tolerance of the catheter to torque during use. It is impossible to simultaneously test the impact of a test environment (37±2℃) that simulates the catheter in the target blood vessel of the human body and determine the number of twists (angles) or torque / torque when the catheter is damaged (or fails). Utility Model Content

[0005] The technical problem solved by the utility model is to provide a catheter torsion angle and rotation torque testing device to effectively measure the rotation angle of medical catheters and provide real-time feedback data curve of the torque measurement, and to complete the test items conveniently, quickly and accurately in conjunction with a PC control system and a user-friendly operation interface.

[0006] The utility model adopts the following technical solutions to solve the above technical problems:

[0007] A catheter torsion angle and rotation torque testing device comprises a mobile control module, a dynamic torque output module is fixedly arranged on the upper side of the mobile control module, a circulating constant temperature water bath module is arranged on the side of the mobile control module, a combined pipeline module is arranged on the upper front of the circulating constant temperature water bath module, an angle test module and a torque test module are arranged on the upper rear of the circulating constant temperature water bath module, and a PC control system is fixedly arranged on the upper side of the circulating constant temperature water bath module.

[0008] The dynamic torque output module includes a servo motor fixedly arranged on the mobile control module, the output end of the servo motor is connected to the torque control module, and the torque control module is electrically connected to the PC control system.

[0009] The circulating constant temperature water bath module comprises a water tank, a circulating pump and a heating module, and the circulating pump and the heating module are fixedly arranged at the bottom of the water tank.

[0010] The combined pipeline module comprises a fixed base which is adjustably fixedly arranged on the upper side of the water tank, and guide wheels are evenly arranged on the upper side of the fixed base.

[0011] The angle testing module includes an angle testing module fixing bracket that can be adjusted and arranged on the upper side of the water tank, a high-precision angle testing chuck is rotatably arranged on the front side of the angle testing module fixing bracket, a coupling is fixedly arranged at the rear end of the angle testing high-precision chuck, an angle testing sensor is fixedly connected to the rear end of the coupling, the angle testing sensor is fixedly arranged on the upper side of the water tank, and the angle testing sensor is electrically connected to the PC control system.

[0012] The torque testing module includes a torque testing module fixing bracket adjustably arranged on the upper side of the water tank, a high-precision torque testing chuck is rotatably arranged on the front side of the torque testing module fixing bracket, a torque measuring sensor is connected to the rear end of the high-precision torque testing chuck, the torque measuring sensor is fixedly arranged on the torque testing module fixing bracket, and the torque measuring sensor is electrically connected to the PC control system.

[0013] Connecting pieces are evenly arranged on the upper side of the water tank.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model completes the torque test item of the medical catheter by fixing the medical catheter at the proximal position and the clamp of the distal static torque output module through the proximal dynamic torque output module in cooperation with the high-precision clamp. At the same time, the distal end of the medical catheter can be fixed on the rotation angle measurement module to complete the rotation angle test item of the medical catheter. In this process, the catheter can be placed in the simulation pipeline module for testing under different paths, and the water tank can be filled with water to heat a test result in a simulated human body internal temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a first overall structural schematic diagram of the catheter torsion angle and rotation torque testing device of the utility model;

[0018] Figure 2 This is the overall second structural schematic diagram of the catheter torsion angle and rotation torque testing device of the utility model;

[0019] Figure 3 It is a structural front view of the press device of the utility model;

[0020] Figure 4 It is a three-dimensional structural view of the press device of the utility model;

[0021] Figure 5 It is a schematic diagram of the air duct structure of the thermostat of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the guide wheel and the fixed base of the utility model;

[0023] Explanation of main figure marks: 01, mobile control module; 02, dynamic torque output module; 03, PC control system; 04, angle test module; 05, torque test module; 06, circulating constant temperature water bath module; 07, combined pipeline module; 0201, servo motor; 0202, torque control module; 0401, high-precision chuck for angle test; 0402, coupling; 0403, angle test sensor; 0404, angle test module fixing bracket; 0501, high-precision chuck for torque test; 0502, torque measurement sensor; 0503, torque test module fixing bracket; 0601, water tank; 0602, circulation pump; 0603, heating module; 0701, guide wheel; 0702, fixed base. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] like Figure 1As shown, a catheter torsion angle and rotation torque testing equipment comprises a mobile control module 01, a dynamic torque output module 02 is fixedly arranged on the upper side of the mobile control module 01, a circulating constant temperature water bath module 06 is arranged on the side of the mobile control module 01, a combined pipeline module 07 is arranged on the upper front of the circulating constant temperature water bath module 06, an angle test module 04 and a torque test module 05 are arranged on the upper rear of the circulating constant temperature water bath module 06, and a PC control system 03 is fixedly arranged on the upper side of the circulating constant temperature water bath module 06.

[0027] like Figure 2 As shown, the dynamic torque output module 02 includes a servo motor 0201 fixedly arranged on the mobile control module 01 , the output end of the servo motor 0201 is connected to the torque control module 0202 , and the torque control module 0202 is electrically connected to the PC-side control system 03 .

[0028] like Figure 5 As shown, the circulating constant temperature water bath module 06 includes a water tank 0601 , a circulating pump 0602 and a heating module 0603 , and the circulating pump 0602 and the heating module 0603 are fixedly arranged at the bottom of the water tank 0601 .

[0029] like Figure 6 The combined pipeline module 07 includes a fixed base 0702 which is adjustably fixedly arranged on the upper side of the water tank 0601, and guide wheels 0701 are evenly arranged on the upper side of the fixed base 0702.

[0030] like Figure 3 As shown, the angle testing module 04 includes an angle testing module fixing bracket 0404 which is adjustably arranged on the upper side of the water tank 0601, a high-precision angle testing chuck 0401 is rotatably arranged on the front side of the angle testing module fixing bracket 0404, a coupling 0402 is fixedly arranged at the rear end of the high-precision angle testing chuck 0401, an angle testing sensor 0403 is fixedly connected to the rear end of the coupling 0402, the angle testing sensor 0403 is fixedly arranged on the upper side of the water tank 0601, and the angle testing sensor 0403 is electrically connected to the PC control system 03.

[0031] like Figure 4 As shown, the torque testing module 05 includes a torque testing module fixing bracket 0503 which is adjustably arranged on the upper side of the water tank 0601, a torque testing high-precision chuck 0501 is rotatably arranged on the front side of the torque testing module fixing bracket 0503, a torque measuring sensor 0502 is connected to the rear end of the torque testing high-precision chuck 0501, the torque measuring sensor 0502 is fixedly arranged on the torque testing module fixing bracket 0503, and the torque measuring sensor 0502 is electrically connected to the PC-side control system 03.

[0032] like Figure 1-6 Shown

[0033] Connectors are evenly arranged on the upper side of the water tank 0601 to adjust the positions of the fixing base 0702, the angle test module fixing bracket 0404 and the torque test module fixing bracket 0503.

[0034] The mobile control module 0101 of the utility model mainly controls the space length required by the target product to be tested during the test project to meet the length of various test products, wherein the 0201 servo motor is the power output of the entire device, and the 0202 torque control module detects and controls the power torque output by the 0201 servo motor and feeds back the data to the PC-side control system 03;

[0035] When the angle test module 04 of the utility model is working, the test product is clamped on the angle test high-precision chuck 0401 and the chuck of the dynamic torque output module 02. After adjusting the connecting rods on both sides to select a suitable inclination angle, the coupling 0402 transmits the number of torsion circles generated by the dynamic torque output module 02 to the angle test sensor 0403 and finally feeds back to the PC control system 03, thereby completing the angle test project.

[0036] When the torque test module 05 of the utility model is working, the test product is clamped on the torque test high-precision chuck 0501 and the chuck of the dynamic torque output module 02. After adjusting the connecting rods on both sides to select a suitable inclination angle, the torque generated by the dynamic torque output module 02 is transmitted to the torque measurement sensor 0502 through the product itself and finally fed back to the PC control system 03, thereby completing the angle test project.

[0037] The circulating constant temperature water bath module 06 of the utility model is composed of a water tank 0601, a circulating pump 0602, and a heating module 0603. The method of use is to inject a suitable amount of water into the water tank 0601, start the circulating pump 0602 to fill the circulating pipeline with water, and then start the heating module 0603 to heat the water in the water tank to the required temperature to start the test project.

[0038] The combined pipeline module 07 is mainly composed of a guide wheel 0701 and a fixed base 0702. The combined pipeline module 07 can quickly simulate the catheter winding path required for testing, ensuring that the measured data can greatly reflect the data performance of the product, which is convenient for later optimization and improvement of the product.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A catheter torsion angle and rotation torque testing device, characterized in that: The invention comprises a mobile control module (01), wherein a dynamic torque output module (02) is fixedly arranged on the upper side of the mobile control module (01), a circulating constant temperature water bath module (06) is arranged on the side of the mobile control module (01), a combined pipeline module (07) is arranged on the upper front of the circulating constant temperature water bath module (06), an angle test module (04) and a torque test module (05) are arranged on the upper rear of the circulating constant temperature water bath module (06), and a PC-end control system (03) is fixedly arranged on the upper side of the circulating constant temperature water bath module (06).

2. A catheter torsion angle and rotation torque testing device according to claim 1, characterized in that: The dynamic torque output module (02) comprises a servo motor (0201) fixedly arranged on the mobile control module (01), the output end of the servo motor (0201) is connected to a torque control module (0202), and the torque control module (0202) is electrically connected to a PC-side control system (03).

3. A catheter torsion angle and rotation torque testing device according to claim 1, characterized in that: The circulating constant temperature water bath module (06) comprises a water tank (0601), a circulating pump (0602) and a heating module (0603), wherein the circulating pump (0602) and the heating module (0603) are fixedly arranged at the bottom of the water tank (0601).

4. A catheter torsion angle and rotation torque testing device according to claim 3, characterized in that: The combined pipeline module (07) comprises a fixed base (0702) which is adjustably fixedly arranged on the upper side of the water tank (0601), and guide wheels (0701) are evenly arranged on the upper side of the fixed base (0702).

5. A catheter torsion angle and rotation torque testing device according to claim 3, characterized in that: The angle testing module (04) comprises an angle testing module fixing bracket (0404) which is adjustably arranged on the upper side of the water tank (0601); a high-precision angle testing chuck (0401) is rotatably arranged on the front side of the angle testing module fixing bracket (0404); a coupling (0402) is fixedly arranged on the rear end of the high-precision angle testing chuck (0401); an angle testing sensor (0403) is fixedly connected to the rear end of the coupling (0402); the angle testing sensor (0403) is fixedly arranged on the upper side of the water tank (0601); and the angle testing sensor (0403) is electrically connected to the PC-side control system (03).

6. A catheter torsion angle and rotation torque testing device according to claim 3, characterized in that: The torque test module (05) comprises a torque test module fixing bracket (0503) which is adjustably arranged on the upper side of the water tank (0601); a torque test high-precision chuck (0501) is rotatably arranged on the front side of the torque test module fixing bracket (0503); a torque measurement sensor (0502) is connected to the rear end of the torque test high-precision chuck (0501); the torque measurement sensor (0502) is fixedly arranged on the torque test module fixing bracket (0503); and the torque measurement sensor (0502) is electrically connected to the PC-side control system (03).

7. A catheter torsion angle and rotation torque testing device according to claim 3, characterized in that: Connecting pieces are evenly arranged on the upper side of the water tank (0601).

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