Laparoscope channel tensile test clamp structure

Abstract

The utility model belongs to the technical field of tensile test fixtures, and particularly relates to a laparoscope channel tensile test fixture structure. According to the utility model, through the cooperation of the tensioning cylinder and the tensioning execution mechanism, the hard plastic parts at the two ends of the laparoscope channel sample to be tested can be fully tensioned, so that the stress is more uniform, and meanwhile, the connecting pieces at the two ends are matched with the stretching mechanism to provide stretching force, so that the actual laparoscope channel use scene can be simulated; further, stable and reliable adhesive force test data can be obtained; the tension cylinder assembly adopted by the utility model is convenient to operate, the tension force and the tension position are controllable, and compared with a traditional clamping fixture, the tension cylinder assembly can ensure that hard plastic parts at two ends of a laparoscope channel sample to be tested are uniformly stressed, and the accuracy of a tension test result and the test efficiency are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of tensile testing fixture technology, specifically relating to a laparoscopic channel tensile testing fixture structure. Background Technology

[0002] Laparoscopic surgery is a newly developed minimally invasive surgical procedure and an inevitable trend in the future development of surgical procedures. The traditional approach to laparoscopic surgery involves making three small incisions in the patient's waist, inserting a tube-like working channel called a "trocar" into each incision. Subsequent procedures are performed through these three laparoscopic channels, and then using specially designed extended surgical instruments under monitor guidance to complete the same steps as open surgery, achieving the same surgical results.

[0003] The commonly used laparoscopic channel is made of rigid plastic at both ends and a soft plastic channel in the middle. The two materials are glued together. To ensure the biosafety of the surgical procedure, the adhesive strength of the laparoscopic channel needs to be tested.

[0004] Existing laparoscopic channel adhesive tensile testing methods typically involve using clamps to directly and flatten the rigid plastic parts at both ends, and then manually applying tensile force to test the adhesive strength. However, existing methods cannot simulate the actual use scenario of laparoscopic channels and cannot guarantee uniform stress on the rigid plastic parts, making it difficult to obtain stable and reliable adhesive strength test data. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a laparoscopic channel tensile testing fixture structure, which is simple in structure, easy to operate, more in line with the actual use scenario of laparoscopic channels, and can ensure that the rigid plastic parts at both ends of the laparoscopic channel are subjected to uniform force, so that the test results are more stable and reliable.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A laparoscopic channel tensile testing fixture structure includes an upper connector 1, an upper tensioning cylinder 2, an upper tensioning actuator 3, a lower tensioning actuator 5, a lower tensioning cylinder 6, and a lower connector 7. One end of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively inserted into and tension the upper and lower ends of the laparoscopic channel sample 4. The other ends of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively connected to the upper tensioning cylinder 2 and the lower tensioning cylinder 6. The upper tensioning cylinder 2 and the lower tensioning cylinder 6 are fixedly connected to the upper and lower tensioning mechanisms of the test stand through the upper connector 1 and the lower connector 7, respectively.

[0008] Furthermore, the laparoscopic channel sample 4 includes an upper rigid plastic end 13, a middle soft plastic segment 14, and a lower rigid plastic end 15 connected in sequence.

[0009] Furthermore, both the upper tensioning actuator 3 and the lower tensioning actuator 5 are provided with tensioning actuator ends 8, and the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are respectively used to drive the two tensioning actuator ends 8 to extend and retract.

[0010] Furthermore, the tensioning ends 8 of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively inserted into and tension the inner walls of the upper rigid plastic end 13 and the lower rigid plastic end 15.

[0011] Furthermore, the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are respectively provided with an upper cylinder inflation port 9 and a lower cylinder inflation port 10, and the upper cylinder inflation port 9 and the lower cylinder inflation port 10 are respectively connected to the corresponding air source mechanism.

[0012] Furthermore, both the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are equipped with air pressure regulating valves.

[0013] Furthermore, the upper connector 1 has an upper connection hole 11, and the upper tensioning mechanism of the test bench is fixedly connected to the upper connection hole 11 through a matching connecting hook to provide upper test tension.

[0014] Furthermore, the lower connector 7 has a lower connecting hole 12, and the lower tension mechanism of the test bench is fixedly connected to the lower connecting hole 12 through a matching connecting hook to provide the lower test tension.

[0015] Compared with the prior art, the present invention has the following main advantages:

[0016] 1. This utility model provides a laparoscopic channel tensile test fixture structure. Through the cooperation of a tensioning cylinder and a tensioning actuator, the rigid plastic parts at both ends of the laparoscopic channel sample to be tested can be fully tensioned, making the force more uniform. At the same time, the connecting parts at both ends cooperate with the tensioning mechanism to provide tensile force, which can simulate the actual use scenario of the laparoscopic channel, thereby obtaining stable and reliable adhesive force test data.

[0017] 2. The tensioning cylinder assembly used in this utility model is easy to operate, and the tensioning force and tensioning position are controllable. Compared with traditional clamping fixtures, it can ensure that the hard plastic parts at both ends of the laparoscopic channel sample are subjected to uniform force, and greatly improve the accuracy and efficiency of tensile test results. Attached Figure Description

[0018] Figure 1This is a front view of the structure of a laparoscopic channel tensile testing fixture according to the present invention;

[0019] Figure 2 This is a side view of the structure of a laparoscopic channel tensile testing fixture according to the present invention;

[0020] Figure 3 This is a front view of the structure of a laparoscopic channel tensile testing fixture according to the present invention.

[0021] In the figure: 1-Upper connector; 2-Upper tensioning cylinder; 3-Upper tensioning actuator; 4-Laparoscope channel sample; 5-Lower tensioning actuator; 6-Lower tensioning cylinder; 7-Lower connector; 8-Tensioning actuator end; 9-Upper cylinder inflation port; 10-Lower cylinder inflation port; 11-Upper connecting hole; 12-Lower connecting hole; 13-Upper rigid plastic end; 14-Middle soft plastic section; 15-Lower rigid plastic end. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] The features and performance of this application will be further described in detail below with reference to the embodiments.

[0027] Example 1: This example provides a laparoscopic channel tensile testing fixture structure, such as... Figures 1 to 3 As shown, it mainly includes: upper connecting part 1, upper tensioning cylinder 2, upper tensioning actuator 3, lower tensioning actuator 5, lower tensioning cylinder 6 and lower connecting part 7;

[0028] One end of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively inserted into and tension the upper and lower ends of the laparoscopic channel sample 4. The other ends of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively connected to the upper tensioning cylinder 2 and the lower tensioning cylinder 6. The upper tensioning cylinder 2 and the lower tensioning cylinder 6 are respectively fixedly connected to the upper and lower tensioning mechanisms of the test bench through the upper connecting piece 1 and the lower connecting piece 7.

[0029] Furthermore, the laparoscopic channel sample 4 includes an upper rigid plastic end 13, a middle soft plastic segment 14, and a lower rigid plastic end 15 connected in sequence.

[0030] Furthermore, both the upper tensioning actuator 3 and the lower tensioning actuator 5 are provided with tensioning actuator ends 8, and the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are respectively used to drive the two tensioning actuator ends 8 to extend and retract.

[0031] Furthermore, the tensioning ends 8 of the upper tensioning actuator 3 and the lower tensioning actuator 5 are respectively inserted into and tension the inner walls of the upper rigid plastic end 13 and the lower rigid plastic end 15.

[0032] Furthermore, the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are respectively provided with an upper cylinder inflation port 9 and a lower cylinder inflation port 10, and the upper cylinder inflation port 9 and the lower cylinder inflation port 10 are respectively connected to the corresponding air source mechanism.

[0033] Furthermore, both the upper tensioning cylinder 2 and the lower tensioning cylinder 6 are equipped with air pressure regulating valves.

[0034] Furthermore, the upper connector 1 has an upper connection hole 11, and the upper tensioning mechanism of the test bench is fixedly connected to the upper connection hole 11 through a matching connecting hook to provide upper test tension.

[0035] Furthermore, the lower connector 7 has a lower connecting hole 12, and the lower tension mechanism of the test bench is fixedly connected to the lower connecting hole 12 through a matching connecting hook to provide the lower test tension.

[0036] Example 2: This example provides a laparoscopic channel tensile test fixture structure, which drives the tensioning actuator through a tensioning cylinder to tension and fix the rigid plastic parts at both ends of the laparoscopic channel sample to be tested. The tensioning force and tensioning position are adjustable, which can simulate the actual working conditions and make the rigid plastic parts at both ends more uniformly stressed.

[0037] Furthermore, both ends of the fixture structure are connected to the tensioning mechanism of the test bench via connectors to provide tensile force for testing.

[0038] In practical use:

[0039] First, insert the tensioning actuator into the inner side of the rigid plastic at both ends of the laparoscopic channel sample to be tested.

[0040] Then, activate the two tensioning cylinders to tension the two ends of the rigid plastic parts respectively.

[0041] Next, adjust the tension at both ends according to the actual working conditions to ensure that the force is uniform at both ends of the laparoscopic channel sample to be tested.

[0042] Finally, tensile force is provided through the connectors at both ends and the tensioning mechanism of the test bench to conduct a laparoscopic channel tension test.

[0043] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.

[0044] In summary:

[0045] 1. This utility model provides a laparoscopic channel tensile test fixture structure. Through the cooperation of a tensioning cylinder and a tensioning actuator, the rigid plastic parts at both ends of the laparoscopic channel sample to be tested can be fully tensioned, making the force more uniform. At the same time, the connecting parts at both ends cooperate with the tensioning mechanism to provide tensile force, which can simulate the actual use scenario of the laparoscopic channel, thereby obtaining stable and reliable adhesive force test data.

[0046] 2. The tensioning cylinder assembly used in this utility model is easy to operate, and the tensioning force and tensioning position are controllable. Compared with traditional clamping fixtures, it can ensure that the hard plastic parts at both ends of the laparoscopic channel sample are subjected to uniform force, and greatly improve the accuracy and efficiency of tensile test results.

[0047] The above embodiments are only used to illustrate the design concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. The protection scope of this utility model is not limited to the above embodiments. Therefore, all equivalent changes or modifications made based on the principles and design ideas disclosed in this utility model are within the protection scope of this utility model.

Claims

1. A laparoscopic channel tensile testing fixture structure, characterized in that: The device includes an upper connector (1), an upper tensioning cylinder (2), an upper tensioning actuator (3), a lower tensioning actuator (5), a lower tensioning cylinder (6), and a lower connector (7). One end of the upper tensioning actuator (3) and the lower tensioning actuator (5) are respectively inserted into and tension the upper and lower ends of the laparoscopic channel sample (4). The other ends of the upper tensioning actuator (3) and the lower tensioning actuator (5) are respectively connected to the upper tensioning cylinder (2) and the lower tensioning cylinder (6). The upper tensioning cylinder (2) and the lower tensioning cylinder (6) are respectively fixedly connected to the upper and lower tensioning mechanisms of the test bench through the upper connector (1) and the lower connector (7).

2. The laparoscopic channel tensile testing fixture structure according to claim 1, characterized in that: The laparoscopic channel sample (4) includes an upper rigid plastic end (13), a middle soft plastic segment (14), and a lower rigid plastic end (15) connected in sequence.

3. The laparoscopic channel tensile testing fixture structure according to claim 2, characterized in that: The upper tensioning actuator (3) and the lower tensioning actuator (5) are both provided with tensioning actuator ends (8). The upper tensioning cylinder (2) and the lower tensioning cylinder (6) are respectively used to drive the two tensioning actuator ends (8) to extend and retract.

4. The laparoscopic channel tensile testing fixture structure according to claim 3, characterized in that: The tensioning ends (8) of the upper tensioning actuator (3) and the lower tensioning actuator (5) are respectively inserted into and tension the inner walls of the upper hard plastic end (13) and the lower hard plastic end (15).

5. The laparoscopic channel tensile testing fixture structure according to claim 4, characterized in that: The upper tensioning cylinder (2) and the lower tensioning cylinder (6) are respectively provided with an upper cylinder inflation port (9) and a lower cylinder inflation port (10), and the upper cylinder inflation port (9) and the lower cylinder inflation port (10) are respectively connected to the corresponding air source mechanism.

6. The laparoscopic channel tensile testing fixture structure according to claim 4, characterized in that: Both the upper tensioning cylinder (2) and the lower tensioning cylinder (6) are equipped with air pressure regulating valves.

7. The laparoscopic channel tensile testing fixture structure according to claim 1, characterized in that: The upper connector (1) has an upper connection hole (11), and the upper tensioning mechanism of the test bench is fixedly connected to the upper connection hole (11) through a matching connecting hook to provide upper test tension.

8. The laparoscopic channel tensile testing fixture structure according to claim 1, characterized in that: The lower connector (7) has a lower connection hole (12), and the lower tension mechanism of the test bench is fixedly connected to the lower connection hole (12) through a matching connecting hook to provide the lower test tension.

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