Integrated drill bit and bone drilling device

Abstract

The utility model relates to an integrated drill bit and a bone drilling device, the integrated drill bit comprises a drill rod and a sleeve body with a uniform outer diameter, the drill rod comprises an assembling section and a drilling section, and the assembling section is partially inserted into the sleeve body and is tightly matched with the sleeve body. The sleeve body is mounted on the outer side wall of the assembly section of the drill rod and is fastened and matched with the drill rod to be connected into a whole, so that mixed connection of the drill rod and the handle can be avoided only by assembling and connecting the sleeve body with the uniform outer diameter and the handle, and the safety in the using process is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an integrated drill bit and a bone drilling device. Background Art

[0002] A drill bit is a surgical tool for drilling holes in bone tissue. It is connected to a power handle, and the power provided by the power handle drives the drill bit to rotate to operate on the bone tissue. Traditional drill bits use a universal structure. Any manufacturer that produces power handles only needs to produce a matching drill chuck to assemble and connect with the drill bit using a universal structure. This makes it easy for the power handle and the drill bit to be mixed. However, since the performance parameters of the power handles produced by different manufacturers are different, safety accidents are very likely to occur if they are mixed. Summary of the invention

[0003] Based on this, it is necessary to provide an integrated drill bit and bone drilling device to address the problem that the handle and the drill bit are easily mixed up, which is very likely to cause safety accidents.

[0004] The technical solution is as follows:

[0005] On the one hand, an integrated drill bit is provided, including a drill rod and a sleeve with a uniform outer diameter, wherein the drill rod includes an assembly section and a drilling section, wherein the assembly section is partially inserted into the sleeve and tightly matched with the sleeve.

[0006] The technical solution is further described below:

[0007] In one embodiment, the integrated drill bit further includes a reinforcing sleeve, which is sleeved on the outer wall of a portion of the assembly section and is securely connected to the assembly section, and the sleeve body is sleeved on the outer wall of a portion of the reinforcing sleeve and is securely connected to the reinforcing sleeve.

[0008] In one embodiment, the reinforcement sleeve has an inner cavity extending axially and a connecting cavity extending radially to communicate with the inner cavity, the assembly section is partially inserted in the inner cavity and is provided with a connecting groove corresponding to the connecting cavity, and the integrated drill bit also includes a fastener, which is inserted in the connecting cavity and the connecting groove to fasten the assembly section to the reinforcement sleeve.

[0009] In one of the embodiments, an outer side wall of the reinforcement sleeve at one end away from the drilling section is provided with a first limiting plane, and an inner side wall of the sleeve body is provided with a second limiting plane that fits with the first limiting plane.

[0010] In one embodiment, there are at least two first limiting planes, and at least two of the first limiting planes are arranged around the circumference of the reinforcement sleeve. There are at least two second limiting planes, and at least two of the second limiting planes are arranged in a one-to-one correspondence with at least two of the first limiting planes.

[0011] In one of the embodiments, a mounting groove is provided at one end of the sleeve body away from the drilling section, and the integrated drill bit further includes an identification element, and the identification element is disposed in the mounting groove.

[0012] In one of the embodiments, the mounting groove has an insertion port communicating with the outside, and the integrated drill bit further includes a seal, which is used to seal the insertion port.

[0013] In one of the embodiments, the insertion opening is located at an end of the casing body facing away from the drilling section.

[0014] In one embodiment, the outer diameter of the sleeve matches the inner diameter of the chuck of the handle; and the inner diameter of the sleeve matches the inner diameter of the output shaft of the handle.

[0015] In another aspect, a bone drilling device is provided, comprising a handle and the integrated drill bit transmission connection.

[0016] The integrated drill bit and bone drilling device of the above-mentioned embodiment installs the sleeve on the outer wall of the assembly section of the drill rod and fastens the sleeve and the drill rod to form a whole. It only needs to assemble and connect the sleeve and the handle with the uniform outer diameter to avoid mixing the drill rod and the handle, thereby ensuring safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 is an axial cross-sectional view of an integrated drill bit according to an embodiment;

[0020] Figure 2 for Figure 1 A structural schematic diagram of a drill rod of an integrated drill bit;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the reinforcement sleeve of the integrated drill bit.

[0022] Description of reference numerals:

[0023] 10. Integrated drill bit; 100. Drill rod; 110. Assembly section; 111. Connecting groove; 120. Drilling section; 200. Sleeve body; 210. Mounting groove; 211. Insertion port; 300. Reinforcement sleeve; 310. Inner cavity; 320. Connecting cavity; 330. First limiting plane; 400. Fastener; 500. Identification element; 600. Sealing member. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] In one embodiment, a bone drilling device is provided, which includes a handle (not shown) and an integrated drill bit 10. In this way, after the integrated drill bit 10 is connected to the handle, the integrated drill bit 10 can be driven to rotate to perform operations such as drilling holes in bone tissue. In addition, the integrated drill bit 10 can be prevented from being mixed with handles from other manufacturers, ensuring safety during use.

[0026] It should be noted that the handle drives the integrated drill bit 10 to rotate, which may be driven by a servo motor. Since it belongs to the prior art, it will not be described in detail here.

[0027] like Figure 1 As shown, in one embodiment, an integrated drill bit 10 is provided, including a drill rod 100 and a casing 200 with a uniform outer diameter.

[0028] like Figure 1 and Figure 2 As shown, the drill rod 100 includes an assembly section 110 and a drilling section 120, wherein the assembly section 110 and the drilling section 120 can be fixedly connected or integrally formed. Specifically, the assembly section 110 can be connected to the handle in a transmission manner, and the drilling section 120 can perform operations such as drilling holes in bone tissue. In addition, the assembly section 110 is partially inserted into the sleeve body 200 and is tightly matched with the sleeve body 200, so that the sleeve body 200 and the entire drill rod 100 are assembled into one.

[0029] like Figure 1As shown, in one embodiment, one end of the assembly section 110 away from the drilling section 120 is located outside the sleeve body 200, so that the assembly section 110 can be connected to the handle in a transmission manner, and the handle can drive the assembly section 110 to rotate axially.

[0030] Optionally, the assembly section 110 may be in a cylindrical structure, etc. The drilling section 120 is provided with a spiral blade for drilling and other operations.

[0031] Optionally, the sleeve body 200 may be in a cylindrical structure.

[0032] When the integrated drill bit 10 of the above embodiment needs to be assembled with the handle, the sleeve 200 is installed on the outer wall of the assembly section 110 of the drill rod 100 and the sleeve 200 and the drill rod 100 are fastened together to form a whole. It only needs to assemble and connect the sleeve 200 with the handle having a uniform outer diameter to avoid mixing up the drill rod 100 and the handle, thereby ensuring safety during use.

[0033] like Figure 1 and Figure 3 As shown, the integrated drill bit 10 further includes a reinforcing sleeve 300. The reinforcing sleeve 300 is sleeved on the outer side wall of a part of the assembly section 110 and is tightly connected to the assembly section 110, and the sleeve body 200 is sleeved on the outer side wall of a part of the reinforcing sleeve 300 and is tightly connected to the reinforcing sleeve 300. In this way, the reinforcing sleeve 300 is located between the assembly section 110 and the sleeve body 200. Even if the diameter of the assembly section 110 changes, the reinforcing sleeve 300 can be used to fill the gap between the outer side wall of the assembly section 110 and the inner side wall of the sleeve body 200, so as to ensure that the sleeve body 200 and the drill rod 100 are stably and reliably fastened and matched to avoid relative rotation.

[0034] In one embodiment, when the outer diameter of the assembly section 110 is small, the gap between the outer wall of the assembly section 110 and the inner wall of the casing 200 can be filled by the reinforcing sleeve 300 to ensure that the casing 200 and the drill rod 100 are stably and reliably fastened and matched to avoid relative rotation. Of course, in other embodiments, when the outer diameter of the assembly section 110 is large and matches the inner diameter of the casing 200, the casing 200 and the assembly section 110 can be directly assembled into an axial hole without using the reinforcing sleeve 300.

[0035] The fastening connection between the reinforcing sleeve 300 and the assembly section 110 may be achieved by plug-in fitting or by snap-fit ​​fitting.

[0036] like Figure 1 and Figure 3As shown, in one embodiment, the reinforcement sleeve 300 has an inner cavity 310 extending in the axial direction and a connecting cavity 320 extending in the radial direction to communicate with the inner cavity 310. In addition, the assembly section 110 is partially inserted into the inner cavity 310 and is provided with a connecting groove 111 correspondingly communicating with the connecting cavity 320. In addition, the integrated drill bit 10 further includes a fastener 400, which is inserted into the connecting cavity 320 and the connecting groove 111, so that the assembly section 110 is fastened and connected to the reinforcement sleeve 300 by the fastener 400.

[0037] The fastener 400 may be in the form of a plug such as a cylindrical pin.

[0038] like Figure 3 As shown, optionally, the outer side wall of the reinforcing sleeve 300 at one end away from the drilling section 120 is provided with a first limiting plane 330. The inner side wall of the sleeve body 200 is provided with a second limiting plane that fits with the first limiting plane 330. In this way, the fit between the first limiting plane 330 and the second limiting plane is used to limit the rotation of the reinforcing sleeve 300 relative to the sleeve body 200, thereby preventing the sleeve body 200 and the reinforcing sleeve 300 from rotating relative to each other, ensuring the synchronous rotation of the sleeve body 200, the reinforcing sleeve 300 and the drill rod 100, and thus ensuring the drilling accuracy.

[0039] Furthermore, there are at least two first limiting planes 330, and at least two first limiting planes 330 are arranged around the circumference of the reinforcement sleeve 300. There are at least two second limiting planes, and at least two second limiting planes are arranged in one-to-one correspondence with at least two first limiting planes 330. In this way, by using the fit between at least two first limiting planes 330 and at least two second limiting planes, relative rotation between the sleeve body 200 and the reinforcement sleeve 300 can be more effectively avoided.

[0040] The number of the first limiting planes 330 can be flexibly designed or selected according to actual use requirements, for example, two, three or more. The number of the second limiting planes can be consistent with the number of the first limiting planes 330 .

[0041] like Figure 1 As shown, in one embodiment, a mounting groove 210 is provided at one end of the sleeve 200 away from the drilling section 120. The integrated drill bit 10 further includes an identification element 500, which is disposed in the mounting groove 210. Thus, the handle can identify the integrated drill bit 10 through the identification element 500 to obtain the corresponding parameters of the integrated drill bit 10, and can more intelligently and effectively identify whether the integrated drill bit 10 is mixed with the handle, which is more conducive to safety.

[0042] Among them, the identification element 500 can be an electronic tag or other device with near-field communication function. The corresponding parameters of the integrated drill bit 10 can be pre-stored in the identification element 500. Correspondingly, a device that can communicate with the identification element 500 can be integrated on the handle to identify and read the corresponding parameters of the integrated drill bit 10.

[0043] The identification element 500 can be installed in the installation groove 210 by plugging or snapping.

[0044] like Figure 1 As shown, further, the installation groove 210 has an insertion port 211 connected to the outside, so that the identification element 500 can be installed in the installation groove 210 through the insertion port 211, which is convenient for assembling the identification element 500. In addition, the integrated drill bit 10 also includes a seal 600, which is used to block the insertion port 211. In this way, it is possible to prevent foreign matter from entering the installation groove 210 through the insertion port 211 and causing interference or influence on the normal operation of the identification element 500, thereby extending the service life of the identification element 500 and ensuring the stable and reliable operation of the identification element 500.

[0045] The sealing member 600 may be in the form of a sealing plug or a sealing sleeve.

[0046] like Figure 1 As shown, further, the insertion opening 211 is located at the end of the sleeve body 200 away from the drilling section 120. In this way, the identification element 500 will not be thrown out from the insertion opening 211 under the action of centrifugal force.

[0047] In one embodiment, the outer diameter of the sleeve 200 matches the inner diameter of the chuck of the handle, so that the integrated drill bit 10 can be stably and reliably assembled and connected with the chuck, and it is also convenient for the chuck of the handle to be assembled and connected with drill rods 100 of different sizes, and it has strong versatility. The inner diameter of the sleeve 200 matches the inner diameter of the output shaft of the handle, so that the integrated drill bit 10 can be stably and reliably assembled and connected with the output shaft, and it is also convenient for the output shaft to be assembled and connected with drill rods 100 of different sizes, and it has strong versatility.

[0048] It should be noted that "some body" or "some part" can be a part of the corresponding "component", that is, "some body" or "some part" can be integrally formed with the "other parts of the component"; it can also be an independent component that can be separated from the "other parts of the component", that is, "some body" or "some part" can be manufactured independently and then combined with the "other parts of the component" into a whole. The expression of the above-mentioned "some body" or "some part" in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as it contains the above-mentioned features and has the same function, it should be understood as an equivalent technical solution of this application.

[0049] It should be noted that the components included in the "unit", "assembly", "mechanism" and "device" of this application can also be flexibly combined, that is, modular production can be carried out according to actual needs to facilitate modular assembly. The division of the above components in this application is only one of the embodiments, for the convenience of reading, and not to limit the scope of protection of this application. As long as the above components are included and have the same functions, it should be understood that it is an equivalent technical solution of this application.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The term "and / or" used in the present invention includes any and all combinations of one or more related listed items.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] It should be noted that when an element is referred to as being "fixed on", "set on", "fixed on" or "installed on" another element, it can be directly on the other element or there can be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a central element at the same time. Further, when an element is considered to be "fixed transmission connected" to another element, the two can be fixed in a detachable connection manner or in a non-detachable connection, as long as power transmission can be achieved, such as socketing, snap-on, one-piece molding fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0055] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0057] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An integrated drill bit, characterized in that: It includes a drill rod and a sleeve with a uniform outer diameter, the drill rod includes an assembly section and a drilling section, the assembly section is partially inserted into the sleeve and tightly matched with the sleeve; the integrated drill bit also includes a reinforcement sleeve, the reinforcement sleeve is sleeved on the outer wall of part of the assembly section and tightly connected to the assembly section, the sleeve is sleeved on the outer wall of part of the reinforcement sleeve and tightly connected to the reinforcement sleeve; an installation groove is provided at one end of the sleeve away from the drilling section, and the integrated drill bit also includes an identification element, and the identification element is arranged in the installation groove.

2. The integrated drill bit according to claim 1, characterized in that: The reinforcement sleeve has an inner cavity extending axially and a connecting cavity extending radially to communicate with the inner cavity. The assembly section is partially inserted in the inner cavity and is provided with a connecting groove corresponding to the connecting cavity. The integrated drill bit also includes a fastener, which is inserted in the connecting cavity and the connecting groove to fasten the assembly section to the reinforcement sleeve.

3. The integrated drill bit according to claim 1, characterized in that: A first limiting plane is provided on the outer side wall of the reinforcing sleeve at one end away from the drilling section, and a second limiting plane is provided on the inner side wall of the sleeve body that is in contact with the first limiting plane.

4. The integrated drill bit according to claim 3, characterized in that: There are at least two first limiting planes, and at least two of the first limiting planes are arranged around the circumference of the reinforcement sleeve. There are at least two second limiting planes, and at least two of the second limiting planes are arranged in a one-to-one correspondence with at least two of the first limiting planes.

5. The integrated drill bit according to claim 1, characterized in that: The installation groove has an insertion port communicating with the outside, and the integrated drill bit also includes a sealing member, which is used to seal the insertion port.

6. The integrated drill bit according to claim 5, characterized in that: The insertion opening is located at the end of the sleeve body facing away from the drilling section.

7. The integrated drill bit according to any one of claims 1 to 6, characterized in that: The outer diameter of the sleeve body matches the inner diameter of the chuck of the handle; the inner diameter of the sleeve body matches the inner diameter of the output shaft of the handle.

8. A bone drilling device, characterized in that: It comprises a handle and an integrated drill bit as described in any one of claims 1 to 7, wherein the handle is drivingly connected to the integrated drill bit.

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