A surgical knife elasticity tester

Abstract

The utility model provides a surgical knife elasticity tester, comprising a base, a lifting mechanism, a support assembly and at least one set of detection jigs; the support assembly comprises a pressure sensor and a mounting block; the pressure sensor is mounted on the base; the mounting block is fixed above the pressure sensor; the lifting mechanism is mounted on the base and is located at the rear side of the support assembly; the detection jig comprises a lower shaping seat and an upper pressing block; the lower shaping seat is detachably mounted on the mounting block; a semicircular groove is provided above the lower shaping seat; the upper pressing block is arranged above the lower shaping seat; the bottom surface of the upper pressing block is an arc-shaped surface matched with the semicircular groove; the upper pressing block is used to be mounted on the power output end of the lifting mechanism. The design can accurately detect the elasticity of the surgical knife and has high safety.

Description

Technical Field

[0001] The utility model relates to the technical field of testing instruments, in particular to a surgical knife elasticity testing instrument. Background Art

[0002] After the scalpel is processed, its elastic function needs to be tested to see if it can rebound after a certain pressure deformation. In the past, manual bending was usually used for testing. However, this method not only produces non-standard test results and fails to meet the expected test standards, but also because the blade is sharp, manual operation can easily cause injuries and has low safety. Therefore, a set of testing instruments is needed to test it. Utility Model Content

[0003] The utility model aims to provide a surgical knife elasticity tester to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A surgical knife elasticity tester comprises a base, a lifting mechanism, a support assembly and at least one set of detection fixtures; the support assembly comprises a pressure sensor and a mounting block; the pressure sensor is mounted on the base; the mounting block is fixed above the pressure sensor; the lifting mechanism is mounted on the base and located at the rear side of the support assembly; the detection fixture comprises a lower shaping seat and an upper pressing block; the lower shaping seat is detachably mounted on the mounting block; a semicircular groove is provided above the lower shaping seat; the upper pressing block is arranged above the lower shaping seat; the bottom surface of the upper pressing block is an arc-shaped surface matched with the semicircular groove; the upper pressing block is used to be installed at the power output end of the lifting mechanism.

[0006] Further description of the utility model: the pressure sensor is fixed to the base through a support column; a longitudinally arranged slide rail with a dovetail-shaped longitudinal cross-section is provided above the mounting block; a dovetail groove cooperating with the slide rail is provided at the bottom of the lower forming seat; the lower forming seat can be installed on the slide rail of the mounting block through the dovetail groove.

[0007] Further description of the utility model, a limit baffle is installed at the rear end of the slide rail.

[0008] Further description of the utility model, the lifting mechanism includes a mounting frame, a lifting drive device and a lifting plate; the mounting frame is fixed on the base and is located on the rear side of the support assembly; the lifting plate is connected to the front side of the mounting frame by sliding up and down through a guide rod; the upper pressure block can be locked to the bottom of the front end of the lifting plate by screws; the lifting drive device is installed on the mounting frame and the power output end is connected to the lifting plate.

[0009] Further description of the utility model, the lifting drive device includes a motor, a driving gear, a driven gear, a synchronous belt and a screw; the motor is installed at the rear of the mounting frame and the power output end is connected to the driving gear; the screw is rotatable and vertically installed on the front side of the mounting frame and is connected to the lifting plate through a nut; the driven gear is fixed at the lower end of the screw; the synchronous belt is installed between the driving gear and the driven gear.

[0010] Further description of the utility model, the detection fixture is provided in three sets; the inner diameter of the semicircular groove of each set of the detection fixture is different.

[0011] The beneficial effects of the utility model are:

[0012] This design places the surgical blade on the semicircular groove of the lower forming seat, and the lifting mechanism drives the upper pressure block to move downward. The upper pressure block presses the surgical blade against the semicircular groove until the pressure sensor reaches the set value and stops. The lifting mechanism drives the upper pressure block to reset, and then it can be observed whether the surgical blade rebounds. If it rebounds to a normal state, it is judged to be an OK product. If it cannot rebound to a normal state, it is an NG product. This technology can accurately detect the elastic performance of the scalpel and is highly safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the overall structure diagram of the utility model;

[0014] Figure 2 It is a structural diagram of the support assembly of the utility model. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings:

[0016] like Figure 1-2As shown, a surgical knife elasticity tester comprises a base 1, a lifting mechanism 2, a support assembly 3 and a detection fixture 4; the support assembly 3 comprises a pressure sensor 31 and a mounting block 32; the pressure sensor 31 is mounted on the base 1; the mounting block 32 is fixed above the pressure sensor 31; the detection fixture 4 comprises a lower shaping seat 41 and an upper pressing block 42; the lower shaping seat 41 is detachably mounted on the mounting block 32; a semicircular groove 411 is provided above the lower shaping seat 41; the upper pressing block 42 is arranged above the lower shaping seat 41; the bottom surface of the upper pressing block 42 is an arc-shaped surface 421 that cooperates with the semicircular groove 411; the lifting mechanism 2 is mounted on the base 1 and the power output end is connected to the lower shaping seat 41. During the test, the surgical blade is placed on the semicircular groove 411 of the lower forming seat 41, and the lifting mechanism 2 is controlled to drive the upper pressing block 42 to move downward. The upper pressing block 42 presses the surgical blade against the semicircular groove 411 until the pressure sensor 31 reaches the set value and stops. The lifting mechanism 2 drives the upper pressing block 42 to reset. Then, it can be observed whether the surgical blade rebounds. If it rebounds to a normal state, it is judged as an OK product. If it cannot rebound to a normal state, it is an NG product. This setting can accurately detect the elastic performance of the scalpel and has high safety. The design of the detection fixture 4 has multiple sets, and three sets are set in the design. The inner diameter of the semicircular groove 411 of each set of the detection fixture 4 is different. According to different detection standards, the detection fixture 4 of the corresponding specifications can be replaced for use.

[0017] The pressure sensor 31 is fixed on the base 1 through a support column 33; a longitudinally arranged slide rail 321 with a dovetail-shaped longitudinal cross-section is provided above the mounting block 32; a dovetail groove 412 matching the slide rail 321 is provided at the bottom of the lower forming seat 41; the lower forming seat 41 is installed on the slide rail 321 of the mounting block 32 through the dovetail groove 412, which is easy to install and has high stability.

[0018] A limit stopper 3211 is installed at the rear end of the slide rail 321 to limit the lower shaping seat 41 .

[0019] The lifting mechanism 2 includes a mounting frame 21, a lifting drive device 22 and a lifting plate 23; the mounting frame 21 is fixed on the base 1 and is located at the rear side of the support assembly 3; the lifting plate 23 is connected to the front side of the mounting frame 21 by sliding up and down through two guide rods; the upper pressure block 42 is locked at the bottom of the front end of the lifting plate 23 by screws; the lifting drive device 22 is installed on the mounting frame 21 and the power output end is connected to the lifting plate 23, and the lifting drive device 22 controls the lifting movement of the lifting plate 23, thereby driving the upper pressure block 42 connected thereto to move up and down.

[0020] The lifting drive device 22 includes a motor 221, a driving gear (not shown), a driven gear 222, a synchronous belt 223 and a screw rod 224; the motor 221 is installed at the rear of the mounting frame 21 and the power output end is connected to the driving gear; the screw rod 224 is rotatable and vertically installed on the front side of the mounting frame 21 and is connected to the lifting plate 23 through a nut; the driven gear 222 is fixed at the lower end of the screw rod 224; the synchronous belt 223 is installed between the driving gear and the driven gear 222. This method can accurately control the height position of the upper pressure block 42.

[0021] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A surgical knife elasticity tester, characterized in that: It includes a base, a lifting mechanism, a support assembly and at least one set of detection fixtures; the support assembly includes a pressure sensor and a mounting block; the pressure sensor is mounted on the base; the mounting block is fixed above the pressure sensor; the lifting mechanism is mounted on the base and is located at the rear side of the support assembly; the detection fixture includes a lower forming seat and an upper pressing block; the lower forming seat is detachably mounted on the mounting block; a semicircular groove is provided above the lower forming seat; the upper pressing block is arranged above the lower forming seat; the bottom surface of the upper pressing block is an arc-shaped surface that matches the semicircular groove; the upper pressing block is used to be installed at the power output end of the lifting mechanism.

2. A surgical knife elasticity tester according to claim 1, characterized in that: The pressure sensor is fixed on the base through a support column; a longitudinally arranged slide rail with a dovetail-shaped longitudinal cross-section is provided above the mounting block; a dovetail groove matching the slide rail is provided at the bottom of the lower forming seat; the lower forming seat can be installed on the slide rail of the mounting block through the dovetail groove.

3. A surgical knife elasticity tester according to claim 2, characterized in that: A limit baffle is installed at the rear end of the slide rail.

4. A surgical knife elasticity tester according to claim 1, characterized in that: The lifting mechanism includes a mounting frame, a lifting drive device and a lifting plate; the mounting frame is fixed on the base and is located at the rear side of the support assembly; the lifting plate is connected to the front side of the mounting frame by sliding up and down through a guide rod; the upper pressure block can be locked at the bottom of the front end of the lifting plate by screws; the lifting drive device is installed on the mounting frame and the power output end is connected to the lifting plate.

5. A surgical knife elasticity tester according to claim 4, characterized in that: The lifting drive device includes a motor, a driving gear, a driven gear, a synchronous belt and a screw rod; the motor is installed at the rear of the mounting frame and the power output end is connected to the driving gear; the screw rod is rotatable and vertically installed on the front side of the mounting frame and is connected to the lifting plate through a nut; the driven gear is fixed at the lower end of the screw rod; the synchronous belt is installed between the driving gear and the driven gear.

6. A surgical knife elasticity tester according to claim 1, characterized in that: Three sets of the detection jigs are provided; the inner diameter of the semicircular groove of each set of the detection jigs is different.

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