Gamma knife screwdriver insulating friction sleeve

CN224877173UActive Publication Date: 2026-10-23FIRST HOSPITAL AFFILIATED TO GENERAL HOSPITAL OF PLA
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Patent Information

Application Number
CN202521125696.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-04
Publication Date
2026-10-23
Estimated Expiration
2035-06-04

AI Technical Summary

Technical Problem

然而在定位头架安装的过程中需要使用伽马刀改锥旋紧/松特制金属螺钉将定位头架安装在患者的颅骨上,由于其并不是一次性使用的医疗器械,需要重复使用并且使用前需要进行器械消毒,通体为金属材质,质量较重,现有技术中为了便于医生使用在其手柄表面靠近旋紧/松特制金属螺钉的操作端位置设置了一个用于放置拇指的卡位,但是由于在为患者安装立体定位头架时需要分别在患者的前额和后脑均通过特制金属螺钉进行固定,因此医生在操作时由于一只手需要辅助把持立体定位头架,仅一只手对特制金属螺钉进行旋紧/松,并且医生为了便于操作并不会一直站在每一个金属螺钉的正前方对其进行旋紧/松,因此,医生在握持伽玛刀改锥时会根据所站方位的不同调整伽玛刀改锥的握持位置,然而由于改锥其他靠近手柄端部的表面光滑,不利于握持,因此,现有技术中的伽玛刀改锥结构并不能满足医生在不断变化操作位置的情况下的便利性,因此上述问题需要得到解决

Benefits of technology

[0017]本实用新型的上述技术方案具有以下有益效果:本申请的伽玛刀改锥绝缘摩擦套在使用过程中,在医生需要握持手柄端部的位置进行操作时,无论是使用拇指和食指还是拇指和中指进行配合夹持,在转动改锥的过程中,例如拇指会在相对横向的第一防滑部接触,食指或者中指于相对纵向的第二防滑部接触,当第一防滑部和第二防滑部的结构为形成在壳体表面的沉槽时,更好的匹配手指的接触位置,并且沉槽内设置有防滑纹路进一步的防止了手部滑脱,并且由于第二防滑部设置若干个,在相邻的两个沉槽结构的第二防滑部之间形成了对应的凸起部,更加便于在对改锥转动时对手指的助力,使用时更加便利,当第一防滑部4和第二防滑部的结构为固定设置在壳体表面且突出于壳体表面的固定片时,固定片表面上设置有防滑纹路进一步的防止了手部滑脱,并且由于第二防滑部设置若干个,在相邻的两个突出与壳体表面的固定片的第二防滑部之间形成了对应的凹陷部,便于在对改锥转动时对手指的助力,使用时更加便利,本申请的伽玛刀改锥绝缘摩擦套的可拆卸结构便于对改锥2进行单独消毒,同时,进一步更好的满足了医生在不断变化操作位置的情况下防止握持时的手滑问题,提高操作的便利性满足医生在不断变化操作位置的情况下的便利性。

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Abstract

The utility model relates to a gamma knife screwdriver insulation friction cover, including the casing, the casing is wrapped in the screwdriver outer surface and is close to its handle end position, the side of casing forms the open end and the both sides of this open end can be removed type connection, first antiskid portion, first antiskid portion horizontal around be equipped with on the outer peripheral surface of casing, a plurality of second antiskid portion set up on the outer peripheral surface of casing and its from the handle end of casing one end to surface extension and first antiskid portion intersect, first antiskid portion and second antiskid portion surface all form the antiskid line. The utility model gamma knife screwdriver insulation friction cover's detachable structure is convenient to carry out the individual disinfection to the screwdriver, and further, better satisfy the hand slip problem of preventing when holding under the condition that the doctor is in the constantly changing operation position, improve the convenience of operation.
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Description

Technical Field

[0001] This utility model relates to a medical device, and more particularly to an insulating friction sleeve for a gamma knife screwdriver. Background Technology

[0002] During Gamma Knife treatment of brain tumors, a positioning head frame needs to be installed on the patient's head. However, the installation process requires using a Gamma Knife screwdriver to tighten / loosen specially designed metal screws to attach the head frame to the patient's skull. Because it is not a disposable medical device and needs to be reused, requiring sterilization before each use, and being entirely made of metal, it is quite heavy. Current technology includes a thumb slot on the handle near the operating end of the screw for tightening / loosening, but since the positioning head frame needs to be fixed to both the forehead and back of the head with specially designed metal screws, this... During operation, doctors need to use one hand to assist in holding the stereotactic head frame, and only one hand to tighten / loosen the special metal screws. Furthermore, for ease of operation, doctors do not always stand directly in front of each metal screw to tighten / loosen them. Therefore, when holding the Gamma Knife screwdriver, doctors adjust the grip position of the Gamma Knife screwdriver according to their standing position. However, because the other surfaces of the screwdriver near the handle are smooth, they are not conducive to gripping. Therefore, the existing Gamma Knife screwdriver structure cannot meet the convenience requirements of doctors when constantly changing operating positions. Therefore, the above problems need to be solved. Utility Model Content

[0003] This invention provides an insulating friction sleeve for a gamma knife screwdriver, which provides convenience for doctors when their operating positions are constantly changing.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a gamma knife screwdriver insulating friction sleeve, including a housing that wraps around the outer surface of the screwdriver and is located near the end of its handle, with one side of the housing forming an open end and the two sides of the open end being removably connected;

[0005] The first anti-slip part is horizontally wound around the outer peripheral surface of the shell;

[0006] A plurality of second anti-slip portions are disposed on the outer peripheral surface of the housing and extend from one end of the housing near the handle end toward the surface and intersect with the first anti-slip portion;

[0007] Both the first and second anti-slip parts have anti-slip textures on their surfaces.

[0008] As a further improvement, the first anti-slip part is a first groove formed around the outer peripheral surface of the shell, with the two ends of the first groove corresponding to the open end, and anti-slip textures formed on the inner surface of the first groove.

[0009] As a further improvement, the first anti-slip part is a first fixing piece fixedly disposed on the outer peripheral surface of the housing. The inner surface of the first fixing piece is fixedly connected to the outer peripheral surface of the housing. The two ends of the first fixing piece correspond to the open end position. The outer surface of the first fixing piece forms an anti-slip texture.

[0010] As a further improvement, the second anti-slip part is a second groove formed on the outer peripheral surface of the housing and extending from one end of the housing near the handle end toward the surface. Several second grooves intersect with the first anti-slip part, and anti-slip texture is formed on the surface of the second groove.

[0011] As a further improvement, the second anti-slip part is a second fixing piece fixedly disposed on the outer peripheral surface of the housing, the surface of the second fixing piece protruding from the outer surface of the housing, and the surface of the second fixing piece forming anti-slip texture.

[0012] As a further improvement, a base and a fixing seat are fixedly provided on the outer surfaces of the two sides near the open end of the housing, respectively. The surface of the base is hinged with a fixing buckle, and the inner surface of the fixing buckle on the side away from the base forms a ridge. The surface of the fixing seat forms a groove that matches the ridge.

[0013] As a further improvement, the two ends of the base and the fixed seat are flush with the two side edges of the housing.

[0014] As a further improvement, a soft colloid damping layer is fixedly disposed on the inner surface of the housing.

[0015] As a further improvement, a fixing groove is formed on the inner surface of the housing, and a soft colloid damping layer is fixedly disposed in the fixing groove, with one side of the soft colloid damping layer extending out from the opening of the fixing groove.

[0016] As a further improvement, the soft gel damping layer is a rubber damping layer, and the surface of the rubber damping layer is formed with anti-slip texture.

[0017] The above-mentioned technical solution of this utility model has the following beneficial effects: During use, when the doctor needs to hold the handle end of the Gamma Knife screwdriver insulating friction sleeve, whether using the thumb and index finger or the thumb and middle finger in combination, during the rotation of the screwdriver, for example, the thumb will contact the relatively horizontal first anti-slip part, and the index or middle finger will contact the relatively vertical second anti-slip part. When the structure of the first and second anti-slip parts is a groove formed on the surface of the shell, it better matches the contact position of the fingers. Furthermore, the anti-slip texture provided in the groove further prevents the hand from slipping. And because several second anti-slip parts are provided, corresponding protrusions are formed between two adjacent groove structures of the second anti-slip parts, making it easier to rotate the screwdriver. The screwdriver provides assistance to the fingers, making it more convenient to use. When the first anti-slip part 4 and the second anti-slip part are fixedly set on the surface of the shell and protrude from the surface of the shell, the surface of the fixed piece is provided with anti-slip texture to further prevent the hand from slipping. In addition, since there are several second anti-slip parts, corresponding recesses are formed between two adjacent second anti-slip parts of the fixed piece protruding from the surface of the shell, which facilitates the assistance to the fingers when rotating the screwdriver, making it more convenient to use. The detachable structure of the insulating friction sleeve of the Gamma Knife screwdriver of this application facilitates the individual disinfection of the screwdriver 2. At the same time, it further better meets the problem of preventing the hand from slipping when the doctor is constantly changing the operating position, improving the convenience of operation and meeting the convenience of the doctor when constantly changing the operating position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the outer surface structure of the shell after it has been unfolded, according to one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the inner surface structure of the shell after it has been unfolded, according to one embodiment of the present invention.

[0021] Reference numerals: 1. Shell, 2. Screwdriver, 3. Open end, 4. First anti-slip part, 5. Second anti-slip part, 6. First recess, 7. First fixing piece, 8. Second recess, 9. Second fixing piece, 10. Base, 11. Fixing base, 12. Fixing buckle, 13. Protrusion, 14. Slot, 15. Soft rubber damping layer, 16. Fixing groove. Detailed Implementation

[0022] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings and examples.

[0024] Please see Figures 1 to 3 As shown, the present invention discloses an insulating friction sleeve for a gamma knife screwdriver, comprising a housing 1, which is wrapped around the outer surface of a screwdriver 2 and located near the handle end. An open end 3 is formed on one side of the housing 1 and the two sides of the open end 3 are removably connected.

[0025] The first anti-slip part 4 is horizontally arranged around the outer peripheral surface of the housing 1;

[0026] Second anti-slip part 5, a plurality of second anti-slip parts 5 are disposed on the outer peripheral surface of the housing 1 and extend from one end of the housing 1 near the handle end toward the surface and intersect with the first anti-slip part 4;

[0027] Anti-slip textures are formed on the surfaces of both the first anti-slip part 4 and the second anti-slip part 5.

[0028] The insulating friction sleeve of the Gamma Knife screwdriver in this application is used to fit onto the end of the Gamma Knife screwdriver near the handle. During the Gamma Knife treatment of brain tumors, a positioning head frame needs to be installed on the patient's head before the brain is scanned, dose is planned, and precise radiotherapy is performed. During the installation of the stereotactic headgear, under local anesthesia, the headgear is installed onto the patient's skull using specially designed metal screws. This allows for precise three-dimensional localization of intracranial lesions, enabling more efficient concentration of radiation at the lesion site. The Gamma Knife screwdriver 2 mentioned in this application is a medical instrument used by doctors to tighten / loosen the specially designed metal screws during the installation of the stereotactic headgear. Because it is not a disposable medical device and needs to be reused and sterilized before use, and is made entirely of metal, it is relatively heavy. In existing technology, a thumb rest is provided on the handle near the operating end for tightening / loosening the specially designed metal screws to facilitate doctor use. However, since the stereotactic headgear needs to be fixed to the patient's forehead and back of the head with specially designed metal screws, the doctor needs to use one hand for support during operation. Holding the stereotactic headgear, the doctor uses only one hand to tighten / loosen the special metal screws. Furthermore, to facilitate operation, the doctor doesn't always stand directly in front of each screw. Therefore, when holding the Gamma Knife screwdriver, the doctor adjusts the grip position based on their standing position. For example, when tightening / loosening the special metal screw on the patient's right forehead, and the doctor stands slightly behind and to the right of the patient for easier support of the stereotactic headgear, the doctor, using screwdriver 2, will hold it with their thumb and middle finger near the handle end, while their index finger rests on the handle end. The thumb and middle finger work together to rotate the handle to tighten / loosen the special metal screw. Because this surface is smooth, the existing Gamma Knife screwdriver structure does not provide the convenience required for doctors to continuously change their operating position.

[0029] In the Gamma Knife screwdriver insulating friction sleeve of this application, since the housing 1 wraps around the outer surface of the screwdriver 2 and is located near the end of its handle, one side of the housing 1 forms an open end 3, and the two sides of the open end 3 are detachably connected. The detachable connection can be a buckle or a strap, or other means that can close and open the open end 3 of the housing 1. During use, the open end 3 is used to close the handle of the Gamma Knife screwdriver near the end. It should be noted that the Gamma Knife screwdriver of this application is an existing structure in the prior art. The location of the handle near the end of the Gamma Knife screwdriver mentioned therein, combined with the above-mentioned Gamma Knife screwdriver structure, the housing 1 of this application is located between the existing thumb holder and the end of the handle, further closing the open end 3. At this time, the inner surface of the housing 1 and the corresponding outer surface of the Gamma Knife screwdriver 2 are circumferentially abutted, preventing the housing 1 from falling off. The Gamma Knife screwdriver insulating friction sleeve of this application is a detachable structure, which facilitates the individual disinfection of the device after use.

[0030] Since the first anti-slip part 4 is horizontally wrapped around the outer peripheral surface of the housing 1, a plurality of second anti-slip parts 5 are disposed on the outer peripheral surface of the housing 1 and extend from the end of the housing 1 near the handle end toward the surface and intersect with the first anti-slip part 4. The first anti-slip part 4 may be a first recessed groove 6 formed around the outer peripheral surface of the housing 1. The two ends of the first recessed groove 6 correspond to the positions of the open end 3, and avoid the open end 3 to facilitate the opening and closing of the open end 3. The surface of the first recessed groove 6 is formed with anti-slip texture. The first anti-slip part 4 may also be a first fixing piece 7 fixedly disposed on the outer peripheral surface of the housing 1. The inner surface of the first fixing piece 7 is fixedly connected to the outer peripheral surface of the housing 1. The two ends of the first fixing piece 7 correspond to the positions of the open end 3, and avoid the open end 3 to facilitate the opening and closing of the open end 3. The surface of the first fixing piece 7 protrudes from the outer surface of the housing 1. The surface of the first fixing piece 7 is formed with anti-slip texture.

[0031] The second anti-slip part 5 may be a second recessed groove 8 formed on the outer peripheral surface of the housing 1 and extending from one end of the housing 1 near the handle end toward the surface. Several second recessed grooves 8 intersect with the first recessed groove 6. The surface of the second recessed groove 8 forms an anti-slip texture. The second anti-slip part 5 may also be a second fixing piece 9 fixedly disposed on the outer peripheral surface of the housing 1. The surface of the second fixing piece 9 protrudes from the outer surface of the housing 1 and the surface of the second fixing piece 9 forms an anti-slip texture.

[0032] During use, when a doctor needs to hold the end of the handle for operation, whether using the thumb and index finger or the thumb and middle finger in combination, during the rotation of the screwdriver 2, for example, the thumb will contact the relatively horizontal first anti-slip part 4, and the index or middle finger will contact the relatively vertical second anti-slip part 5. When the structure of the first anti-slip part 4 and the second anti-slip part 5 is a groove formed on the surface of the housing 1, it better matches the contact position of the fingers, and the anti-slip texture in the groove further prevents the hand from slipping. Furthermore, since there are several second anti-slip parts 5, corresponding protrusions are formed between two adjacent second anti-slip parts 5 with different groove structures, which makes it easier to assist the fingers when rotating the screwdriver 2. This makes it more convenient to use. When the first anti-slip part 4 and the second anti-slip part 5 are fixedly set on the surface of the housing 1 and protrude from the surface of the housing 1, the surface of the fixed piece is provided with anti-slip texture to further prevent the hand from slipping. In addition, since there are several second anti-slip parts 5, corresponding recesses are formed between two adjacent second anti-slip parts 5 that protrude from the surface of the housing 1, which facilitates the assistance of the fingers when rotating the screwdriver 2, making it more convenient to use. The detachable structure of the insulating friction sleeve of the Gamma Knife screwdriver of this application makes it easy to disinfect the screwdriver 2 separately. At the same time, it further better meets the problem of preventing the hand from slipping when the doctor is constantly changing the operating position, and improves the convenience of operation.

[0033] Please refer to the following: Figure 1 As shown, specifically, the first anti-slip part 4 is a first recessed groove 6 formed around the outer peripheral surface of the housing 1. The two ends of the first recessed groove 6 correspond to the positions of the open end 3. Anti-slip texture is formed on the inner surface of the first recessed groove 6. The structure of the first recessed groove 6 better matches the contact position of the thumb, and the anti-slip texture on its inner surface further prevents the hand from slipping.

[0034] Please refer to the following: Figure 2 As shown, specifically, the first anti-slip part 4 is a first fixing piece 7 fixedly disposed on the outer peripheral surface of the housing 1. The inner surface of the first fixing piece 7 is fixedly connected to the outer peripheral surface of the housing 1. The two ends of the first fixing piece 7 correspond to the positions of the open end 3. The outer surface of the first fixing piece 7 forms an anti-slip texture. The first fixing piece 7 protruding from the outer surface of the housing 1 further facilitates the thumb to contact the corresponding position. Moreover, the anti-slip texture on its outer surface increases the friction between the thumb and the fingers, further preventing the hand from slipping.

[0035] Please refer to the following: Figure 1As shown, specifically, the second anti-slip part 5 is a second recessed groove 8 formed on the outer peripheral surface of the housing 1 and extending from one end of the housing 1 near the handle end toward the surface. Several second recessed grooves 8 intersect with the first anti-slip part 4. Anti-slip textures are formed on the surface of the second recessed grooves 8. At this time, the first anti-slip part 4 can adopt one of the two structures mentioned above. Both the first anti-slip part 4 and any one of them can play a better role in preventing hand slippage. Furthermore, since the anti-slip textures are provided in the second recessed grooves 8, it further prevents the hand from slipping. At the same time, since several second anti-slip parts 5 are provided, corresponding protrusions are formed between two adjacent second recessed grooves 8, which makes it easier to assist the fingers when rotating the screwdriver 2, making it more convenient to use.

[0036] Please refer to the following: Figure 2 As shown, specifically, the second anti-slip part 5 is a second fixing piece 9 fixedly disposed on the outer peripheral surface of the housing 1. The surface of the second fixing piece 9 protrudes from the outer surface of the housing 1, and anti-slip texture is formed on the surface of the second fixing piece 9. At this time, the first anti-slip part 4 can adopt one of the two structures mentioned above. Both the first anti-slip part 4 and any one of them can play a better role in preventing hand slippage. Since the anti-slip texture is provided on the surface of the second fixing piece 9, it further prevents the hand from slipping. On this basis, since several second anti-slip parts 5 are provided, corresponding recesses are formed between two adjacent second fixing pieces 9 protruding from the surface of the housing 1, which facilitates the assistance of the fingers when rotating the screwdriver 2, making it more convenient to use.

[0037] Please refer to the following: Figures 1 to 3As shown, specifically, a base 10 and a fixing seat 11 are fixedly mounted on the outer surfaces of the two sides near the open end 3 of the housing 1, respectively. A fixing buckle 12 is hinged to the surface of the base 10. A protrusion 13 is formed on the inner surface of the fixing buckle 12 on the side away from the base 10. A slot 14 is formed on the surface of the fixing seat 11 to match the protrusion 13. It should be noted that, in order to facilitate the opening and closing of the open end 3 of the housing 1, both ends of the first anti-slip part 4 and the second anti-slip part 5 near the open end 3 are spaced out from the base 10 and the fixing seat 11. In use, the fixing buckle 12 is folded along the hinge position with the base 10 to disengage the protrusion 13 and the slot 14, and the open end 3 is opened. The housing 1 is wrapped around the outer surface of the screwdriver 2. Then, the fixing buckle 12 is folded over so that the protrusion 13 and the slot 14 are engaged and fixed. The opening and closing operation of the open end 3 is simple and convenient. Since the base 10 and the fixing seat 11 are fixedly set on the outer surfaces of the housing 1 near the open end 3, it is not only easy to determine the opening and closing position of the open end 3, but also the base 10 and the fixing seat 11 protruding from the outer surface of the housing 1 provide assistance to the fingers during the rotation of the screwdriver 2. In addition to the above structure, the open end 3 can also be opened and closed by setting the plug buckle and the socket on the surface of the base 10 and the fixing seat 11 respectively, and the opening and closing of the open end 3 can be achieved by plugging and fixing the plug buckle and the socket.

[0038] Please refer to the following: Figure 3 As shown, specifically, the two ends of the base 10 and the fixed seat 11 are flush with the two side edges of the housing 1, that is, the length of the base 10 and the fixed seat 11 is the same as the width of the housing. This not only makes the structural strength at the open end 3 position greater, but also provides better assistance to the fingers during the rotation of the screwdriver 2. At the same time, it also makes it easier for doctors to count the number of rotations of the screwdriver 2, making it more convenient to use.

[0039] Please refer to the following: Figure 3 As shown, specifically, a soft rubber damping layer 15 is fixedly provided on the inner surface of the housing 1. During the process of the open end 3 gradually closing, after the soft rubber damping layer 15 comes into contact with the outer surface of the screwdriver 2, the housing 1 deforms as it tightens, better adapting to the shape of the outer surface of the screwdriver 2, preventing the housing 1 from falling off, and also preventing the housing 1 from shaking when holding the housing 1 and rotating the screwdriver 2, resulting in better performance. The soft rubber damping layer 15 is a rubber layer.

[0040] Please refer to the following: Figure 3As shown, specifically, a fixing groove 16 is formed on the inner surface of the housing 1, and a soft rubber damping layer 15 is fixedly disposed in the fixing groove 16. One side of the soft rubber damping layer 15 extends out from the opening of the fixing groove 16. That is, the side of the soft rubber damping layer 15 away from the bottom of the fixing groove 16 extends out from the opening of the fixing groove 16 and protrudes from the inner surface of the housing 1. As the open end 3 gradually closes, the soft rubber damping layer 15 comes into contact with the outer surface of the screwdriver 2. Due to the deformation caused by the continuous tightening of the housing 1, it better adapts to the shape of the outer surface of the screwdriver 2. The soft rubber damping layer 15 is placed in the fixing groove 16 to make its fixing effect better, preventing the housing 1 from falling off. At the same time, it prevents the housing 1 from shaking when holding the housing 1 and rotating the screwdriver 2, resulting in a better use effect. The soft rubber damping layer 15 is a rubber layer.

[0041] Please refer to the following: Figure 3 As shown, specifically, the soft gel damping layer 15 is a rubber damping layer. The surface of the rubber damping layer has anti-slip textures, which further increases the friction of its surface, preventing the housing 1 from falling off the surface of the screwdriver 2. At the same time, it prevents the housing 1 from shaking when holding the housing 1 and rotating the screwdriver 2, resulting in better performance.

[0042] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An insulating friction sleeve for a gamma knife screwdriver, characterized in that: include A housing (1) is wrapped around the outer surface of a screwdriver (2) and near the end of its handle. An open end (3) is formed on one side of the housing (1) and the two sides of the open end (3) are removably connected. The first anti-slip part (4) is horizontally arranged around the outer peripheral surface of the housing (1); Second anti-slip part (5), a plurality of second anti-slip parts (5) are disposed on the outer peripheral surface of the housing (1) and extend from one end of the housing (1) near the handle end toward the surface and intersect with the first anti-slip part (4); Anti-slip textures are formed on the surfaces of the first anti-slip part (4) and the second anti-slip part (5).

2. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: The first anti-slip part (4) is a first groove (6) formed around the outer peripheral surface of the shell (1). The two ends of the first groove (6) correspond to the positions of the open end (3). Anti-slip texture is formed on the inner surface of the first groove (6).

3. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: The first anti-slip part (4) is a first fixing piece (7) fixedly installed on the outer peripheral surface of the housing (1). The inner surface of the first fixing piece (7) is fixedly connected to the outer peripheral surface of the housing (1). The two ends of the first fixing piece (7) correspond to the open end (3). Anti-slip texture is formed on the outer surface of the first fixing piece (7).

4. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: The second anti-slip part (5) is a second groove (8) formed on the outer peripheral surface of the housing (1) and extending from one end of the housing (1) near the handle end toward the surface. Several second grooves (8) intersect with the first anti-slip part (4), and anti-slip texture is formed on the surface of the second groove (8).

5. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: The second anti-slip part (5) is a second fixing piece (9) fixedly disposed on the outer peripheral surface of the housing (1). The surface of the second fixing piece (9) protrudes from the outer surface of the housing (1), and anti-slip texture is formed on the surface of the second fixing piece (9).

6. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: The outer surfaces of the housing (1) near the open end (3) are respectively fixed with a base (10) and a fixing seat (11). The surface of the base (10) is hinged with a fixing buckle (12). The inner surface of the fixing buckle (12) away from the base (10) forms a protrusion (13). The surface of the fixing seat (11) forms a groove (14) that matches the protrusion (13).

7. The insulating friction sleeve for a gamma knife screwdriver according to claim 6, characterized in that: The two ends of the base (10) and the fixed base (11) are flush with the two side edges of the shell (1), respectively.

8. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: A soft colloid damping layer (15) is fixedly disposed on the inner surface of the housing (1).

9. The insulating friction sleeve for a gamma knife screwdriver according to claim 1, characterized in that: A fixing groove (16) is formed on the inner surface of the housing (1), and a soft gel damping layer (15) is fixedly disposed in the fixing groove (16). One side of the soft gel damping layer (15) extends out from the opening of the fixing groove (16).

10. The insulating friction sleeve for a gamma knife screwdriver according to claim 8 or 9, characterized in that: The soft gel damping layer (15) is a rubber damping layer, and the surface of the rubber damping layer has anti-slip texture.