Bone drill chuck and surgical power device

Abstract

The utility model relates to a bone drill chuck and a surgical power device. The bone drill chuck comprises an outer shell and an inner shell arranged in the outer shell in a sleeved mode, a first groove is formed in the inner wall of the outer shell, a limiting piece is arranged at the position, corresponding to the first groove, of the inner shell, part of the limiting piece extends into the first groove along the outer wall of the inner shell, and the outer shell and the inner shell are fixedly connected through the limiting piece. Therefore, according to the bone drill chuck and the operation power device provided by the embodiment of the invention, the phenomenon that the outer shell falls off from the inner shell can be improved, so that the operation safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and particularly to a bone drill chuck and a surgical power device. Background Art

[0002] A bone drill chuck is an intermediate connecting member of a surgical power tool for clamping a bone drill, connecting the bone drill to a power driving device, and driving the bone drill to drill into bone tissue through the power driving device. The bone drill chuck generally includes a bone drill chuck housing, a clamping portion, and a transmission portion. The clamping portion is used for clamping the drill bit, and the transmission portion is respectively connected to the clamping portion and the power driving device, and is used for transmitting the power provided by the power driving device to the drill bit to drive the drill bit to rotate at a high speed, so as to realize drilling into the bone tissue.

[0003] In the related art, the transmission portion generally includes a reduction gearbox, and the reduction gearbox is fixed to the bone drill chuck housing through a reduction gearbox housing, so that not only can the reduction gearbox be protected, but also the aesthetics of the reduction gearbox can be improved.

[0004] However, the above-mentioned bone drill chuck housing is prone to falling off from the reduction gearbox housing, thus affecting the safety of the operation. Summary of the Invention

[0005] Based on this, it is necessary to provide a bone drill chuck and a surgical power device, aiming to improve the phenomenon that the outer housing falls off from the inner housing, so as to enhance the safety of the operation.

[0006] In a first aspect, an embodiment of the present application provides a bone drill chuck, including an outer housing and an inner housing sleeved inside the outer housing. A first groove is provided on the inner wall of the outer housing, a limiting member is provided at a position corresponding to the first groove on the inner housing, and a part of the limiting member extends into the first groove along the outer wall of the inner housing. The outer housing and the inner housing are fixedly connected through the limiting member.

[0007] For the bone drill chuck provided by the embodiment of the present application, a first groove is provided on the inner wall of the outer housing, a limiting member is provided at a position corresponding to the first groove on the inner housing, and a part of the limiting member extends into the first groove along the outer wall of the inner housing. The outer housing and the inner housing are fixedly connected through the limiting member. In this way, the cooperation of the limiting member and the first groove can prevent the outer housing from falling off, so as to improve the safety of the operation and facilitate the normal progress of the operation.

[0008] In one embodiment, the first groove is provided at one end of the outer housing.

[0009] In one embodiment, the first groove is provided on one end face of the outer housing, and a second groove is provided on the other end face of the outer housing. Both the first groove and the second groove are stepped steps.

[0010] In one of the embodiments, it also includes a transmission assembly and a locking member; wherein, the second groove is arranged on the inner wall of the outer shell, and the locking member includes a first locking portion and a second locking portion that are connected, the first locking portion is sleeved on the transmission assembly, and the first locking portion has a first end close to the first groove and a second end away from the first groove, the first end face is in contact with the transmission assembly, the second locking portion is located at the second end of the first locking portion, and the second locking portion extends into the second groove.

[0011] In one embodiment, a third groove is provided between the first locking portion and the second locking portion, and an end of the inner housing away from the first groove has a protrusion facing the radial direction of the transmission assembly, and the protrusion extends into the third groove.

[0012] In one embodiment, the first locking portion is annular, an outer wall of the first locking portion is provided with an external thread, an inner wall of the inner shell is provided with an internal thread, and the locking member and the inner shell are connected via the external thread and the internal thread.

[0013] In one embodiment, a through hole is provided on the outer wall of the inner shell at a position corresponding to the first groove, one end of the limiting member is located in the through hole, and the other end extends along the through hole and into the first groove.

[0014] In one embodiment, the through hole is a round hole, and the limiting member is a cylindrical pin.

[0015] In one embodiment, the opening size of the first groove gradually decreases along the direction from the first groove to the second groove;

[0016] and / or, along the direction from the second groove to the first groove, the opening size of the second groove gradually decreases;

[0017] And / or, the limiting member located in the first groove is adapted to the shape of the first groove;

[0018] And / or, the locking member located in the second groove is adapted to the shape of the second groove.

[0019] In a second aspect, an embodiment of the present application provides a surgical power device, comprising the bone drill chuck of the first aspect; and a drill bit, the drill bit being connected to the bone drill chuck; and a power mobile phone, the power mobile phone being transmission-connected to a transmission assembly of the bone drill chuck for providing power to the drill bit through the transmission assembly.

[0020] The surgical power device provided in the embodiment of the present application includes a bone drill chuck, a first groove is provided on the inner wall of the outer shell, a limit piece is provided at the position of the inner shell corresponding to the first groove, part of the limit piece extends into the first groove along the outer wall of the inner shell, and the outer shell and the inner shell are fixedly connected by the limit piece. In this way, the outer shell can be prevented from falling off by the cooperation of the limit piece and the first groove, so as to improve the safety of the operation and facilitate the normal progress of the operation. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments or exemplary embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a cross-sectional view of the drill chuck provided by the embodiment of the present application when in an assembled state.

[0023] Figure 2 It is a cross-sectional view of the input component provided by the embodiment of the present application.

[0024] Figure 3 It is a cross-sectional view of the outer housing provided by the embodiment of the present application.

[0025] Figure 4 It is a cross-sectional view of the locking member provided by the embodiment of the present application.

[0026] Reference Numerals:

[0027] 100, drill chuck; 110, chuck; 120, outer housing; 121, first groove; 122, second groove; 130, inner housing; 140, transmission assembly; 141, output shaft; 142, transmission member; 143, input shaft; 151, interface sleeve; 152, positioning ring; 160, locking member; 161, first locking portion; 162, second locking portion; 163, third groove; 170, limiting member. Detailed Description of the Embodiments

[0028] In order to facilitate the understanding of the present application, the following will describe the present application more comprehensively with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present application more thorough and comprehensive.

[0029] The terms used in the description of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] When describing positional relationships, unless otherwise specified, when an element such as a layer, film, or substrate is referred to as being "on" another element, it can be directly on the other element or there can also be intermediate elements. Further, when a layer is referred to as being "under" another layer, it can be directly below, or there can also be one or more intermediate elements. It can also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or there can also be one or more intermediate elements.

[0031] In the case of using "comprising", "having", and "including" as described herein, unless an explicit limiting term is used, such as "only", "consisting of", etc., another component can also be added. Unless otherwise mentioned, terms in the singular form can include the plural form and should not be understood as having a quantity of one.

[0032] It should be understood that although terms such as "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of the present application, the first element can be referred to as the second element, and similarly, the second element can be referred to as the first element.

[0033] It should also be understood that when interpreting an element, although not explicitly described, the element is interpreted as including an error range, and this error range should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "about", "approximate", or "substantially" can mean within one or more standard deviations, which is not limited herein.

[0034] In the related art, the reduction gearbox and the housing are fixed by using a holding glue. However, since the drill chuck is reused, the drill chuck needs to be sterilized by high temperature and high pressure before each operation. After multiple high temperature and high pressure sterilizations, the viscosity of the holding glue will decrease, resulting in poor connection stability between the housing and the reduction gearbox, and the housing is likely to fall off from the reduction gearbox, thus affecting the surgical safety and process.

[0035] Based on the above problems, an embodiment of the present application provides a drill chuck. A first groove is provided on the inner wall of the housing body, and a limiting member is provided at a position corresponding to the first groove on the inner housing. Part of the limiting member extends into the first groove along the outer wall of the inner housing, and the housing body and the inner housing are fixedly connected through the limiting member. In this way, the cooperation between the limiting member and the first groove can prevent the housing body from falling off, so as to improve the surgical safety and facilitate the normal progress of the surgical process.

[0036] The following will be combined with Figures 1-4 to describe the drill chuck 100 provided by the embodiment of the present application.

[0037] See Figure 1, an embodiment of the present application provides a bone drill chuck 100, which includes an outer housing 120, an inner housing 130, a transmission assembly 140, a chuck 110, and a locking member 160. The chuck 110 can be used to hold a drill bit, a cutting tool, or other workpieces to be held (taking a drill bit as an example for illustration). The transmission assembly 140 is connected to the chuck 110 and can also be connected to a driving device. The transmission assembly 140 can transmit the power provided by the driving device to the drill bit to drive the drill bit to rotate at a high speed, thereby realizing drilling of bone tissue. For example, the driving device can be a power handpiece, a motor, or other driving devices.

[0038] Exemplarily, referring to Figure 1 , the outer housing 120 is sleeved outside the inner housing 130, and the transmission assembly 140 is inserted into the inner housing 130 and connected to the inner housing 130. The transmission assembly 140 includes a transmission member 142, an input shaft 143, and an output shaft 141. Along the direction X, the output shaft 141, the transmission member 142, and the input shaft 143 are arranged in sequence. One end (for example, the input end) of the transmission member 142 is connected to the input shaft 143, and the other end (for example, the output end) of the transmission member 142 is connected to the output shaft 141. The output shaft 141 is connected to the chuck 110. The driving device drives the input shaft 143 to rotate, and the input shaft 143 drives the output shaft 141, the chuck 110, and the drill bit to rotate through the transmission member 142.

[0039] Exemplarily, the transmission member 142 and the inner housing 130 can jointly form a gearbox. For example, the gearbox is a reduction gearbox (such as a two-stage reduction gearbox).

[0040] Exemplarily, referring to Figure 1 and Figure 2 , along the direction in which the transmission assembly 140 is inserted into the inner housing 130 (i.e., Figure 1 the direction X in), a first groove 121 is provided on the inner wall of the outer housing 120. A limiting member 170 is provided at the position of the inner housing 130 corresponding to the first groove 121. Part of the limiting member 170 extends into the first groove 121 along the outer wall of the inner housing 130, and the outer housing 120 and the inner housing 130 are fixedly connected through the limiting member 170. With such a setting, the outer housing 120 can be prevented from falling off the inner housing 130, so as to improve the safety of the operation and facilitate the normal progress of the operation. Through structural optimization, the embodiment of the present application uses a mechanical structure to fix the inner housing 130 and the outer housing 120, improving the connection reliability between the two. The structure will not change after high temperature and high pressure, thereby effectively improving the phenomenon that the outer housing 120 accidentally falls off during the operation.

[0041] Exemplarily, the first groove 121 is provided at one end of the outer housing 120 along the direction X, which can reduce the processing difficulty of the first groove 121 and also reduce the difficulty of the limiting member 170 extending into the first groove 121.

[0042] Exemplarily, the first groove 121 is provided in the middle of the outer housing 120 along the direction X.

[0043] Exemplarily, the first groove 121 and the second groove 122 are respectively provided at both end faces of the outer housing 120, and both the first groove 121 and the second groove 122 are stepped steps. For example, the first groove 121 and the second groove 122 can be milled at both ends of the outer housing 120 respectively, so as to further reduce the processing difficulty of the first groove 121 and the second groove 122. A limiting member 170 is provided at one end of the inner housing 130 close to the first groove 121, and at least part of the limiting member 170 protrudes out of the outer side of the inner housing 130, and at least part of the limiting member 170 extends into the first groove 121. Through the cooperation of the limiting member 170 and the first groove 121, the outer housing 120 can be prevented from falling off along the direction from the second groove 122 to the first groove 121. The locking member 160 is connected to the inner housing 130, and part of the locking member 160 is located outside the inner housing 130, and this part of the locking member 160 extends into the second groove 122. Through the cooperation of the locking member 160 and the second groove 122, the outer housing 120 can be prevented from falling off along the direction from the first groove 121 to the second groove 122, so that the outer housing 120 can be prevented from falling off the inner housing 130, thereby improving the safety of the operation and facilitating the normal progress of the operation. By optimizing the structure in the embodiment of the present application, the inner housing 130 and the outer housing 120 are fixed by a mechanical structure, and the connection reliability between the two is improved. Since both ends of the outer housing 120 are fixed, the structure will not change after high temperature and high pressure, so that the phenomenon that the outer housing 120 accidentally falls off during the operation can be effectively improved.

[0044] In one embodiment, the outer wall of the inner housing 130 has a through hole corresponding to the position of the first groove 121. The through hole and the first groove 121 are oppositely arranged along the direction from the inner housing 130 to the outer housing 120. One end of the limiting member 170 is located in the through hole, and the other end of the limiting member 170 extends out along the through hole to protrude out of the outer side of the inner housing 130, and the other end of the limiting member 170 extends into the first groove 121. Through the cooperation of the other end of the limiting member 170 and the first groove 121, the outer housing 120 can be prevented from falling off along the direction from the second groove 122 to the first groove 121.

[0045] In one embodiment, the through hole can be a round hole, and the limiting member 170 can be a cylindrical pin. The cylindrical pin can be placed in the through hole, and the part of the cylindrical pin protruding out of the inner housing 130 is stuck in the first groove 121, so as to prevent the outer housing 120 from falling off from the left side.

[0046] In one embodiment, the limiting member 170 can be a protruding structure extending from the outer wall of the inner housing 130.

[0047] In one embodiment, refer to Figure 2 Along the circumferential direction of the inner housing 130, the extension length of the first groove 121 is less than that of the inner wall of the outer housing 120. Thus, the extension length of the first groove 121 is short, which can reduce the manufacturing difficulty of the first groove 121 and reduce the influence of the first groove 121 on the mechanical strength of the outer housing 120.

[0048] In some examples, there is one first groove 121 and one limiting member 170, so that the number of both can be reduced, and the manufacturing difficulty and cost can be reduced.

[0049] In other examples, there are multiple first grooves 121, and the multiple first grooves 121 are arranged at intervals along the circumferential direction of the outer housing 120. There are multiple limiting members 170, and the multiple limiting members 170 are arranged at intervals along the circumferential direction of the inner housing 130, and one limiting member 170 is correspondingly located in one first groove 121. The cooperation of the multiple limiting members 170 and the multiple first grooves 121 can make the force on each limiting member 170 uniform, thereby prolonging the service life of the limiting member 170 and improving the effect of blocking the detachment of the outer housing 120.

[0050] In some other examples, the first groove 121 is provided around the inner wall of the outer housing 120, and the first groove 121 is annular with a large extension length, so that the cooperation between the first groove 121 and the limiting member 170 does not require pre-positioning, reducing the cooperation difficulty between the first groove 121 and the limiting member 170.

[0051] In one embodiment, refer to Figure 1 and Figure 2 The second groove 122 is provided around the inner wall of the outer housing 120, and the second groove 122 is annular with a large extension length, so that the cooperation between the second groove 122 and the locking member 160 does not require pre-positioning, reducing the cooperation difficulty between the second groove 122 and the locking member 160. At this time, the outer housing 120 at the second groove 122 can be regarded as a step.

[0052] Exemplarily, refer to Figure 1 and Figure 4The locking member 160 includes a first locking portion 161 and a second locking portion 162 connected to each other. The second locking portion 162 is located on a side of the first locking portion 161 away from the first groove 121, and the second locking portion 162 protrudes from the outer wall of the first locking portion 161. When the bone drill chuck 100 is in an assembled state, the first locking portion 161 is located between the transmission assembly 140 and the inner wall of the inner housing 130. For example, the first locking portion 161 is sheathed on the transmission assembly 140. For example, the first locking portion 161 has a first end close to the first groove 121 and a second end away from the first groove 121. The end surface of the first end abuts against the transmission assembly 140 to limit the transmission assembly 140. The second locking portion 162 is located at the second end of the first locking portion 161. The second locking portion 162 covers the end surface of the inner shell 130 away from the first groove 121, and the second locking portion 162 extends into the second groove 122. The second locking portion 162 can be stuck in the second groove 122. Through the cooperation between the second locking portion 162 and the second groove 122, the outer shell 120 can be prevented from falling off in the direction from the first groove 121 to the second groove 122.

[0053] Exemplarily, the first locking portion 161 is annular, the outer wall of the first locking portion 161 is provided with an external thread, the inner wall of the inner housing 130 is provided with an internal thread, and the locking member 160 and the inner housing 130 are threadedly connected through the external thread and the internal thread, so that the connection method of the locking member 160 and the inner housing 130 is relatively simple. In the embodiment in which the second groove 122 is annular, since the second groove 122 is arranged in a full circle, the locking member 160 can be prevented from being misaligned with the second groove 122 during the tightening process.

[0054] For example, see Figure 1 and Figure 4 A third groove 163 is provided between the first locking portion 161 and the second locking portion 162, and the end of the inner shell 130 away from the first groove 121 has a protrusion in the radial direction of the transmission assembly 140, and the protrusion extends into the third groove 163, so that the inner shell 130 and the locking member 160 can be connected together through the cooperation of the third groove 163 and the protrusion.

[0055] It can be understood that the locking member 160 and the inner shell 130 are threadedly connected by external threads and internal threads. At the same time, the end of the inner shell 130 away from the first groove 121 has a protrusion in the radial direction of the transmission assembly 140, and the protrusion extends into the third groove 163. In this embodiment, the connection stability between the inner shell 130 and the locking member 160 can be improved.

[0056] Exemplarily, the second locking portion 162 is annular, so that the forces on all parts of the second locking portion 162 are uniform, the service life of the second locking portion 162 can be extended, and the effect of preventing the second locking portion 162 from falling off the outer housing 120 can also be improved.

[0057] In one embodiment, the bottom wall of the first groove 121 has a first limiting portion, and the side of the limiting member 170 facing the second groove 122 has a second limiting portion. One of the first limiting portion and the second limiting portion is a limiting groove, and the other is a limiting protrusion. The first limiting portion and the second limiting portion are inserted into each other. In this way, through the cooperation of the first limiting portion and the second limiting portion, the radial jitter between the inner housing 130 and the outer housing 120 can be alleviated.

[0058] In one embodiment, the bottom wall of the second groove 122 has a third limiting portion, and the side of the locking member 160 facing the first groove 121 has a fourth limiting portion. One of the third limiting portion and the fourth limiting portion is a limiting groove, and the other is a limiting protrusion. The third limiting portion and the fourth limiting portion are inserted into each other. In this way, through the cooperation of the third limiting portion and the fourth limiting portion, the radial jitter between the inner housing 130 and the outer housing 120 can be alleviated.

[0059] In one embodiment, along the direction from the first groove 121 to the second groove 122 (i.e., the direction from the notch to the bottom of the first groove 121, i.e., Figure 1 from left to right in the figure), the opening size of the first groove 121 gradually decreases. In this way, the size at the notch of the first groove 121 is larger, and it is easier for the limiting member 170 to be inserted into the first groove 121. In addition, the side wall of the first groove 121 can have a guiding effect. For example, the side wall of the first groove 121 can be inclined to further reduce the difficulty of inserting the limiting member 170 into the first groove 121.

[0060] In one embodiment, along the direction from the second groove 122 to the first groove 121 (i.e., the direction from the notch to the bottom of the second groove 122, i.e., Figure 1 from right to left in the figure), the opening size of the second groove 122 gradually decreases. In this way, the size at the notch of the second groove 122 is larger, and it is easier for the second locking portion 162 to be inserted into the second groove 122. In addition, the side wall of the second groove 122 can have a guiding effect. For example, the side wall of the second groove 122 can be inclined to further reduce the difficulty of inserting the second locking portion 162 into the second groove 122.

[0061] Exemplarily, the limiting member 170 located in the first groove 121 is adapted to the shape of the first groove 121, so that the cooperation between the limiting member 170 and the first groove 121 is closer (for example, tightly abuts), the assembly difficulty between the limiting member 170 and the first groove 121 is reduced, and jitter is not likely to occur.

[0062] Exemplarily, the locking member 160 located in the second groove 122 is adapted to the shape of the second groove 122, so that the cooperation between the locking member 160 and the second groove 122 is closer (for example, closely abutted), reducing the assembly difficulty between the locking member 160 and the second groove 122, and not easily generating jitter.

[0063] In one embodiment, referring to Figure 1 and Figure 3 , the bone drill chuck 100 further includes an interface sleeve 151, which is disposed around the outer side of the input shaft 143, and the interface sleeve 151 is located between the locking member 160 and the input shaft 143.

[0064] In one embodiment, the bone drill chuck 100 further includes a positioning ring 152, which is disposed around between the interface sleeve 151 and the locking member 160. The locking member 160 can prevent the positioning ring 152, the interface sleeve 151 from separating from the inner housing 130.

[0065] To illustrate the surgical power device provided by the embodiments of the present application.

[0066] The embodiments of the present application provide a surgical power device, which may include the bone drill chuck 100 in the above embodiments. The surgical power device may include a member to be clamped (illustrated by a drill bit), the bone drill chuck 100, and a driving device (illustrated by a motor handpiece). The driving device is connected to the drill bit through the bone drill chuck 100. The drill bit is connected to the bone drill chuck 100, and the motor handpiece is in transmission connection with the transmission component 140 of the bone drill chuck 100, and is configured to provide power for the drill bit through the transmission component 140. The cooperation between the limiting member 170 and the first groove 121 can prevent the outer housing 120 from falling off the inner housing 130, so as to improve the safety of the surgery and facilitate the normal progress of the surgery.

[0067] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0068] The above embodiments only represent several implementation manners of the present application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the patent scope of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A bone drill chuck, comprising an outer shell and an inner shell sleeved inside the outer shell, characterized in that: The inner wall of the outer shell is provided with a first groove, and the inner shell is provided with a limiting member at a position corresponding to the first groove. Part of the limiting member extends into the first groove along the outer wall of the inner shell, and the outer shell and the inner shell are fixedly connected by the limiting member.

2. The bone drill chuck according to claim 1, characterized in that: The first groove is disposed at one end of the outer shell.

3. The bone drill chuck according to claim 1, characterized in that: The first groove is arranged on one end surface of the outer shell, and the other end surface of the outer shell is provided with a second groove, and the first groove and the second groove are both stepped steps.

4. The bone drill chuck according to claim 3, characterized in that: It also includes a transmission assembly and a locking member; wherein, the second groove is arranged on the inner wall of the outer shell, and the locking member includes a first locking portion and a second locking portion that are connected, the first locking portion is sleeved on the transmission assembly, and the first locking portion has a first end close to the first groove and a second end away from the first groove, the first end face is in contact with the transmission assembly, the second locking portion is located at the second end of the first locking portion, and the second locking portion extends into the second groove.

5. The bone drill chuck according to claim 4, characterized in that: A third groove is provided between the first locking portion and the second locking portion, and an end of the inner housing away from the first groove has a protrusion facing the radial direction of the transmission assembly, and the protrusion extends into the third groove.

6. The bone drill chuck according to claim 4, characterized in that: The first locking portion is annular, an outer wall of the first locking portion is provided with an external thread, an inner wall of the inner shell is provided with an internal thread, and the locking member and the inner shell are connected via the external thread and the internal thread.

7. The bone drill chuck according to any one of claims 1 to 6, characterized in that: A through hole is formed on the outer wall of the inner shell at a position corresponding to the first groove. One end of the limiting member is located in the through hole, and the other end extends out along the through hole and into the first groove.

8. The bone drill chuck according to claim 7, characterized in that: The through hole is a round hole, and the limiting member is a cylindrical pin.

9. The bone drill chuck according to any one of claims 4 to 6, characterized in that: Along the direction from the first groove to the second groove, the opening size of the first groove gradually decreases; and / or, along the direction from the second groove to the first groove, the opening size of the second groove gradually decreases; And / or, the limiting member located in the first groove is adapted to the shape of the first groove; And / or, the locking member located in the second groove is adapted to the shape of the second groove.

10. A surgical power device, characterized in that: comprising a bone drill chuck as described in any one of claims 1 to 9; and A drill bit, which is connected to the bone drill chuck; a power mobile phone, which is transmission-connected to the transmission assembly of the bone drill chuck and is used to provide power to the drill bit through the transmission assembly.

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