Surgical knife handle pulling-out force testing tool and surgical knife handle pulling-out force testing device

Abstract

The utility model relates to a surgical knife handle pulling-out force testing tool and a surgical knife handle pulling-out force testing device provided with the same, and belongs to the technical field of medical instrument testing equipment.The surgical knife handle pulling-out force testing tool comprises an upper clamping mechanism capable of clamping an upper knife handle and a lower clamping mechanism capable of clamping a lower knife handle, the upper clamping mechanism comprises an upper cover plate and an upper locking piece, the upper cover plate can be fixed with the upper knife handle through the upper locking piece, the lower clamping mechanism comprises a lower cover plate and a lower locking piece, and the lower cover plate can be fixed with the lower knife handle through the lower locking piece. According to the surgical knife handle pulling-out force testing tool and the surgical knife handle pulling-out force testing device, the upper clamping mechanism and the lower clamping mechanism of the testing tool are matched, so that the upper knife handle and the lower knife handle which are clamped can be respectively fixed, and the pulling-out force of the buckle between the upper knife handle and the lower knife handle can be detected; the buckling degree of the buckle is further judged according to the pulling-out force value, and the buckling reliability and stability of the scalpel product are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device testing equipment, in particular to a pulling force test tool for a surgical knife handle and a pulling force test device for a surgical knife handle equipped with the tool. Background Art

[0002] The handles of some surgical knives are assembled in a snap - fit form. For example, a single - hand safety surgical knife (202421253830.0) applied by the applicant before. In order to detect whether the snap - fit of the product is firm and reliable, a pulling force test needs to be performed on the surgical knife handle.

[0003] However, due to its special structure, the existing pulling force test equipment cannot meet the test requirements. Summary of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a pulling force test tool for a surgical knife handle and a pulling force test device for a surgical knife handle, which have a simple structure, are convenient to disassemble and assemble, and have accurate testing.

[0005] The utility model is realized by the following technical solutions:

[0006] The utility model provides a pulling force test tool for a surgical knife handle, which includes an upper clamping mechanism capable of clamping the upper handle and a lower clamping mechanism capable of clamping the lower handle.

[0007] The upper clamping mechanism includes an upper cover plate and an upper locking member. The upper cover plate can be fixed to the upper handle through the upper locking member.

[0008] The lower clamping mechanism includes a lower cover plate and a lower locking member. The lower cover plate can be fixed to the lower handle through the lower locking member.

[0009] In order to realize the relative fixation of the upper cover plate and the upper locking member and facilitate disassembly and assembly, preferably, both ends of the upper cover plate have downward - extending insertion parts, the insertion parts are correspondingly arranged at both ends of the upper handle, the upper locking member includes a first pin and a second pin, and the first pin and the second pin can respectively penetrate through the two insertion parts and be inserted into both ends of the upper handle to realize the relative fixation of the upper cover plate and the upper handle.

[0010] In order to realize the relative fixation of the lower cover plate and the lower locking member and facilitate disassembly and assembly, preferably, the lower locking member includes a front fixing plate, a rear fixing plate and a third pin. The front fixing plate and the rear fixing plate are symmetrically arranged at both ends of the lower cover plate respectively. The third pin can penetrate through the front fixing plate and be inserted into one end of the lower handle, and the rear fixing plate can press the other end of the lower handle.

[0011] To facilitate the positioning of the entire tool handle, one side of the lower cover plate is detachably connected with a side plate, and a channel for limiting both sides of the upper tool handle and the lower tool handle is formed between the side plate and the lower cover plate.

[0012] Since the rear end of the tool handle is a chamfered end face, in order to facilitate pressing, the top end of the rear fixing plate has an inclined pressing block that can fit with the inclined surface at the other end of the lower tool handle.

[0013] To facilitate the disassembly and assembly of the front fixing plate and the rear fixing plate, further, the front fixing plate and the rear fixing plate are respectively detachably connected with the lower cover plate through locking screws.

[0014] To further simplify the fixed installation operation, further, the front fixing plate is integrally formed with the lower cover plate, and the rear fixing plate is detachably connected with the lower cover plate.

[0015] To better fix the lower tool handle on the lower cover plate, a profiling avoidance space is provided on the lower cover plate.

[0016] The present utility model also provides a test device for the pull-off force of a surgical tool handle. The above-mentioned test tooling for the pull-off force of a surgical tool handle is installed on the test device for the pull-off force of a surgical tool handle.

[0017] To facilitate the disassembly and assembly of the test tooling and the test device, the upper cover plate and the lower cover plate are respectively connected with the chuck of the test device for the pull-off force of a surgical tool handle through connecting bolts and locked through locking nuts.

[0018] The beneficial effects of the present utility model are as follows: The test tooling for the pull-off force of a surgical tool handle and the test device for the pull-off force of a surgical tool handle cooperate with the upper clamping mechanism and the lower clamping mechanism of the test tooling, can respectively fix the engaged upper tool handle and lower tool handle, and cooperate with the test device to achieve separation, so as to accurately test the pull-off force of the buckle between the two and ensure the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural diagram of the test tooling for the pull-off force of a surgical tool handle of the present utility model;

[0020] Figure 2 It is an exploded view of the test tooling for the pull-off force of a surgical tool handle of the present utility model;

[0021] Figure 3 It is a cross-sectional view of the test tooling for the pull-off force of a surgical tool handle of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following elaborates on the preferred embodiments of the present utility model in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined. The directional terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model.

[0023] Embodiment 1:

[0024] As Figure 1 shown, a test fixture for the pull-off force of a surgical knife handle includes an upper clamping mechanism 1 capable of clamping the upper handle of the surgical knife and a lower clamping mechanism 2 capable of clamping the lower handle. The surgical knife handle is placed between the upper clamping mechanism 1 and the lower clamping mechanism 2.

[0025] Specifically, as shown in Figure 2 and Figure 3 , the upper clamping mechanism includes an upper cover plate 101 and an upper locking member. Both left and right ends of the upper cover plate 101 have downwardly extending insertion portions. When the surgical knife handle 3 is fixed on the pull-off force test fixture, the insertion portions are correspondingly arranged at both left and right ends of the upper handle 301 of the surgical knife handle 3. The upper locking member includes a first pin 102 and a second pin 103. The first pin 102 and the second pin 103 can respectively penetrate through the two insertion portions and be inserted into both ends of the upper handle 301 to achieve the relative fixation of the upper cover plate 101 and the upper handle 301. In addition, the top end of the upper cover plate 101 can be connected to the chuck of the test device through a connecting bolt 104 and locked by a locking nut 105. Through the above locking structure, it is convenient to realize the assembly of the upper handle 301 and the upper clamping mechanism.

[0026] The lower clamping mechanism includes a lower cover plate 201 and a lower locking member. One side of the lower cover plate 201 is detachably connected to a side plate 206 by screws 207. A channel capable of limiting both sides of the surgical knife handle 3 is formed between the side plate 206 and the lower cover plate 201. The lower knife handle 302 of the surgical knife handle 3 is supported by the lower cover plate 201. The lower cover plate 201 is provided with a corresponding profiling avoidance space, which can be a hole or a notch design according to needs. This design can achieve the tight fixation of the lower knife handle 302 on the lower cover plate 201, and further ensure the reliability of the test when the surgical knife handle 3 is subjected to a pull-off force test; the front and rear sides of the lower knife handle 302 of the surgical knife handle 3 are blocked and limited. The lower locking member includes a front fixing plate 203, a rear fixing plate 204 and a third pin 202. The front fixing plate 203 and the rear fixing plate 204 are respectively detachably arranged at the left and right ends of the lower cover plate 201 through locking screws 205. The third pin 202 can penetrate the front fixing plate 203 and insert into the left end of the lower knife handle. The top end of the rear fixing plate 204 has an inclined pressing block that can fit with the inclined surface at the right end of the lower knife handle 302. The rear fixing plate 204 can press the right end of the lower knife handle 302 tightly. By cooperating with the third pin 202, the whole lower knife handle 302 can be fixed to the lower cover plate 201. Similarly, the bottom end of the lower cover plate 201 is also connected to the chuck of the test device through connecting bolts and locking nuts.

[0027] During use, first place the surgical knife handle 3 inside the lower cover plate 201. Install the front fixing plate 203 and the rear fixing plate 204 at the left and right ends of the lower cover plate 201. The rear fixing plate 204 presses the right end of the lower knife handle 302 of the surgical knife handle 3 tightly, and the left end of the lower knife handle 302 is locked by the third pin 202 to complete the fixation of the lower knife handle 302. Then cover the upper cover plate 101, and insert the first pin 102 and the second pin 103 into the left and right ends of the upper knife handle 301 respectively to complete the fixation of the upper knife handle 301, and then the whole tooling can be sent into the test device.

[0028] Embodiment 2:

[0029] In order to further simplify the fixed installation operation, the difference from Embodiment 1 is that the front fixing plate 203 and the lower cover plate 201 are integrally designed. During use, first place the surgical knife handle 3 inside the lower cover plate 201. The left end of the lower knife handle 302 abuts against the front fixing plate 203. The rear fixing plate 204 presses the right end of the lower knife handle 302 of the surgical knife handle 3 tightly, and the left end of the lower knife handle 302 is locked by the third pin 202 to complete the fixation of the lower knife handle 302. Then cover the upper cover plate 101, and insert the first pin 102 and the second pin 103 into the left and right ends of the upper knife handle 301 respectively to complete the fixation of the upper knife handle 301, and then the whole tooling can be sent into the test device.

[0030] The utility model can realize the quick locking and fixing of the upper handle and the lower handle of the surgical knife handle respectively through three pins cooperating with the front fixing plate and the rear fixing plate, so as to facilitate the subsequent pull-off force test. The reliability of the snap fit of the surgical knife handle can be further judged by the magnitude of the pull-off force value, thus ensuring the quality of the product.

[0031] Embodiment 3:

[0032] This embodiment provides a pull-off force test device for a surgical knife handle. The above-mentioned pull-off force test tooling for the surgical knife handle is installed on the pull-off force test device for the surgical knife handle. By starting the pull-off force test device for the surgical knife handle and applying opposite-direction pulling forces to the upper cover plate and the lower cover plate, the pull-off force of the snap between the upper handle and the lower handle can be detected. The snap fit degree can be further judged by the magnitude of the pull-off force value, ensuring the snap reliability and stability of the scalpel product.

[0033] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "set up", "provided with", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The above-mentioned embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A test fixture for the pulling-off force of a surgical knife handle, characterized in that: It includes an upper clamping mechanism capable of clamping the upper handle and a lower clamping mechanism capable of clamping the lower handle; The upper clamping mechanism includes an upper cover plate and an upper locking member, and the upper cover plate can be fixed to the upper handle through the upper locking member; The lower clamping mechanism includes a lower cover plate and a lower locking member, and the lower cover plate can be fixed to the lower handle through the lower locking member.

2. The surgical knife handle pull-off force test tooling according to claim 1, characterized in that: Both ends of the upper cover plate are provided with plug-in parts extending downward, and the plug-in parts are correspondingly arranged at both ends of the upper handle. The upper locking member includes a first plug pin and a second plug pin. The first plug pin and the second plug pin can respectively penetrate through the two plug-in parts and be inserted into both ends of the upper handle to realize the relative fixation of the upper cover plate and the upper handle.

3. The surgical knife handle pull-off force test tooling according to claim 2, wherein: The lower locking member includes a front fixing plate, a rear fixing plate and a third plug pin. The front fixing plate and the rear fixing plate are symmetrically arranged at both ends of the lower cover plate respectively. The third plug pin can penetrate through the front fixing plate and be inserted into one end of the lower handle, and the rear fixing plate can press the other end of the lower handle.

4. The surgical knife handle pull-off force test tooling according to claim 3, wherein: One side of the lower cover plate is detachably connected with a side plate, and a channel is formed between the side plate and the lower cover plate to limit the two sides of the upper handle and the lower handle.

5. The surgical knife handle pull-off force test tooling according to claim 3, characterized in that: The top of the rear fixing plate is provided with an inclined pressing block capable of fitting with the inclined surface at the other end of the lower handle.

6. The surgical knife handle pull-off force test tooling according to claim 3, characterized in that: The front fixing plate and the rear fixing plate are respectively detachably connected with the lower cover plate through locking screws.

7. The surgical knife handle pull-off force test tooling according to claim 3, characterized in that: The front fixing plate is integrally formed with the lower cover plate, and the rear fixing plate is detachably connected with the lower cover plate.

8. The surgical knife handle pull-off force test tooling according to claim 1, wherein: A profiling avoidance space is formed on the lower cover plate.

9. A test device for the pulling-off force of a surgical knife handle, characterized in that: The surgical handle pull-off force test device is installed with the surgical handle pull-off force test tooling according to any one of claims 1-8.

10. The surgical knife handle pull-off force testing device according to claim 9, wherein: The upper cover plate and the lower cover plate are respectively connected to the chuck of the surgical handle pull-off force test device through connecting bolts and locked by lock nuts.

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