A kind of touch-type nerve root tension detection device

Abstract

The present invention discloses a groping-type nerve root tension detection device, comprising: a fixing frame, the fixing frame is designed as a cylinder, a notch with a rectangular cross-section is provided on the side wall of the fixing frame, a connecting column concentric with the fixing frame is arranged in the notch, first legs are fixedly connected to both sides of the notch of the fixing frame respectively, a second leg is rotatably connected to the connecting column in the middle of the fixing frame, a film pressure sensor is arranged at the front end of the second leg, the direction of the film pressure sensor is consistent with the direction of the notch of the fixing frame, a display is arranged at the rear end of the second leg, and the film pressure sensor is electrically connected to the display.

Description

Technical Field

[0001] The invention discloses a contact-type nerve root tension detection device, and relates to the technical field of surgical detection equipment. Background Art

[0002] Excessive tension in the lumbar nerve roots can cause edema or even damage to the nerve roots, causing patients to experience low back and leg pain, most of which require surgical treatment to relieve. At present, there is no tool that can detect the tension of the lumbar nerve roots before surgery. During the operation, the surgeon can only use a blade-shaped nerve root stripper to gently move the nerve root based on his own experience to judge the tension of the nerve roots. Although this method is simple and easy, it is impossible to quantitatively analyze the size of the nerve root tension. It has no reference value for evaluating the effect of nerve root decompression surgery or conducting clinical research related to high nerve root tension. This shortcoming is also one of the important reasons for the lag in research on diseases related to high lumbar nerve root tension. Summary of the invention

[0003] In view of the defects in the above-mentioned background technology, the present invention provides a touch-type nerve root tension detection device to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a groping-type nerve root tension detection device, comprising: a fixing frame, the fixing frame is designed as a cylinder, the side wall of the fixing frame is provided with a notch with a rectangular cross-section, a connecting column concentric with the fixing frame is arranged in the notch, the first legs are fixedly connected to the two sides of the notch of the fixing frame respectively, the second leg is rotatably connected to the connecting column in the middle of the fixing frame, a thin film pressure sensor is arranged on the second leg, the direction of the thin film pressure sensor is consistent with the direction of the notch of the fixing frame, a display is arranged at the rear end of the second leg, and the thin film pressure sensor is electrically connected to the display, and the display is used to display the pressure value of the thin film pressure sensor.

[0005] Furthermore, a clearance is reserved between the second support leg and the inner wall of the fixing frame slot, so that the second support leg can rotate around the connecting column at a certain angle, and the front end of the second support leg moves a certain distance.

[0006] Furthermore, the second leg is designed to be in the shape of an elongated strip, and the cross section of the second leg is a rectangle.

[0007] Furthermore, a circular hole is provided on the second support leg, and the second support leg is sleeved on the connecting column through the circular hole, and a clearance fit is formed between the second support leg and the connecting column.

[0008] Furthermore, a wiring path is provided on the surface of the second leg for routing the line between the thin film pressure sensor and the display.

[0009] Furthermore, the side walls of the two first supporting legs are respectively on the same vertical plane as the two end surfaces of the fixing frame.

[0010] Furthermore, when placed vertically, center lines of the first legs and the second legs are on the same plane.

[0011] Furthermore, the width of the second support leg is 4 times the width of the first support leg, and the distance between the second support leg and the first support leg is 2 times the width of the first support leg.

[0012] Working principle: The first legs on the left and right sides of this application are instrument brackets, which are inserted into the bones for fixing; by pressing the upper end of the second leg, the lower end of the second leg moves to the other side. A thin film pressure sensor is attached to the lower end of the second leg. After the second leg moves, the thin film pressure sensor is close to the nerve root, causing the nerve root to be tense. The pressure value of the nerve root tension can be obtained on the sensor.

[0013] Beneficial effects: The present application has a simple structure and is used to measure nerve root tension. The data can be measured and recorded multiple times, making it convenient for doctors to choose medical surgery based on actual conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 yes Figure 1 Schematic diagram of the AA direction;

[0016] Figure 3 It is a working schematic diagram of the present invention. DETAILED DESCRIPTION

[0017] The implementation of the technical solution is further described in detail below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0018] like Figures 1 to 3An embodiment shown: a groping-type nerve root tension detection device, comprising: a fixing frame 1, the fixing frame 1 is designed as a cylinder, the length of the fixing frame 1 is 10 mm, and the diameter is 10 mm, the side wall of the fixing frame 1 is provided with a notch 2 with a rectangular cross-section, the notch 2 is provided in the center of the side wall of the fixing frame 1, the width of the notch 2 is 6 mm, and the deepest depth of the notch 2 is 7.22 mm, and a connecting column 3 concentric with the fixing frame 1 is arranged inside, the length of the connecting column 3 is 6 mm, and the diameter is 3 mm, the first legs 4 are fixedly connected to both sides of the notch 2 of the fixing frame 1, and the second leg 5 is rotatably connected to the connecting column 3 in the middle of the fixing frame 1, a thin film pressure sensor 6 is arranged at the front end of the second leg 5, the diameter of the thin film pressure sensor 6 is 3.5 mm, and the direction of the thin film pressure sensor 6 is consistent with the direction of the notch 2 of the fixing frame 1, a display 7 is arranged at the rear end of the second leg 5, and the thin film pressure sensor 6 is electrically connected to the display 7.

[0019] The second leg 5 is designed to be in a long strip shape, and the cross section of the second leg 5 is in a rectangular shape.

[0020] A circular hole is formed on the second leg 5 , and the circular hole is located at about one-third of the height of the upper end of the second leg 5 . The second leg 5 is sleeved on the connecting column 3 through the circular hole.

[0021] A clearance 8 is reserved between the second support leg 5 and the inner wall of the notch 2 of the fixing frame 1 , and the clearance 8 is 0.22 mm. The second support leg 5 can rotate 3 around the connecting column at a certain angle.

[0022] A wiring path is provided on the surface of the second leg 5 for routing the line between the film pressure sensor 6 and the display 7 .

[0023] One side wall of each of the two first supporting legs 4 is respectively on the same vertical plane as the two end surfaces of the fixing frame 1 .

[0024] The center lines of the first supporting legs 4 and the second supporting legs 5 are on the same plane.

[0025] The width of the first leg 4 is 1 mm, the length of the first leg 4 is about 100 mm, the width of the second leg 5 is 4 mm, the length of the first leg is about 148 mm, and the distance between the second leg 5 and the first leg 4 is 2 mm.

[0026] The first legs on the left and right sides of the present application are instrument brackets, which are inserted into the bones for fixing; then the second leg in the middle is pushed forward, and a thin film pressure sensor is attached to the front end of the second leg. After the second leg is pushed, it can be raised about 5mm. A thin film pressure sensor is close to the nerve root, causing the nerve root to be tense, and the pressure value of the nerve root tension can be obtained on the sensor.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A contact-type nerve root tension detection device, characterized in that: The invention comprises: a fixing frame, which is designed as a cylinder, a notch with a rectangular cross-section is provided on the side wall of the fixing frame, a connecting column concentric with the fixing frame is arranged in the notch, first legs are fixedly connected to both sides of the notch of the fixing frame, a second leg is rotatably connected to the connecting column in the middle of the fixing frame, a film pressure sensor is arranged on the second leg, the orientation of the film pressure sensor is consistent with the orientation of the notch of the fixing frame, a display is arranged at the rear end of the second leg, and the film pressure sensor is electrically connected to the display, a toggle gap is reserved between the second leg and the inner wall of the notch of the fixing frame, the second leg can rotate around the connecting column at a certain angle, and the second leg is designed to be long and narrow.

2. A contact-type nerve root tension detection device according to claim 1, characterized in that: A circular hole is provided on the second support leg, and the second support leg is sleeved on the connecting column through the circular hole, and there is a clearance fit between the second support leg and the connecting column.

3. The device for detecting nerve root tension by contacting according to claim 1, characterized in that: A wiring path is provided on the surface of the second leg for wiring between the thin film pressure sensor and the display.

4. The device for detecting nerve root tension by contact groping according to claim 1, characterized in that: The side walls of the two first supporting legs are respectively on the same vertical plane as the two end surfaces of the fixing frame.

5. The device for detecting nerve root tension by contact probing according to claim 1, characterized in that: The center lines of the first supporting legs and the second supporting legs are on the same plane.

6. The device for detecting nerve root tension by contact groping according to claim 1, characterized in that: The width of the second support leg is 4 times the width of the first support leg, and the distance between the second support leg and the first support leg is 2 times the width of the first support leg.

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