CN215606249U

CN215606249U - Implant installation tool and orthopaedic surgery robot

Info

Publication number: CN215606249U
Application number: CN202121445350.0U
Authority: CN
Inventors: 朱龙威; 黄朋
Original assignee: Wuhan United Imaging Zhirong Medical Technology Co Ltd
Current assignee: Wuhan United Imaging Zhirong Medical Technology Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-25
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to an implant installation tool and an orthopedic surgery robot. The implant installation tool includes: the mounting base is provided with a through hole accommodating cavity; the rotating shaft comprises a supporting structure, an operating structure and a connecting part, the supporting structure is mounted in the through hole accommodating cavity of the mounting base, and the operating structure is detachably arranged at one end of the supporting structure; the connecting part is detachably arranged at the other end of the supporting structure. Through adapting unit at bearing structure's demountable installation, realize the change of the adapting unit of different grade type to the implant of adaptation different grade type need not to change whole instrument, when the implant of needs installation different grade type, only need with adapting unit dismantle change with the adapting unit of implant adaptation can, simplify the operating procedure, application scope is wide. Meanwhile, the implant mounting tool is simple in structure, convenient to assemble and disassemble and convenient to use.

Description

Implant installation tool and orthopaedic surgery robot

Technical Field

The utility model relates to the technical field of surgical robots, in particular to an implant installation tool and an orthopedic surgical robot.

Background

In an orthopaedic robotic joint replacement procedure, an implant needs to be implanted into a specific location of a femur. At present, an orthopedic surgery robot mainly realizes implantation operation of an implant through an implant installation tool, and ensures that the implant is installed in place. At present, when an orthopedic surgery robot performs surgery, the shape of an implant required by bones at different parts is different, and correspondingly, the implant also needs an adaptive installation interface for operation. However, the current implant installation tool is of an integrated structure, the installation interfaces are not uniform, the tail end of the implant can only be provided with the implant with the specific interface, the whole installation tool needs to be replaced for the implants with different interfaces, the operation is complex, the cost is high, and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an implant installation tool and an orthopaedic robot adapted to different implants to solve the problem that the existing mechanical end interfaces are not uniform, which results in the overall replacement of the installation tool.

An implant installation tool comprising:

the mounting base is provided with a through hole accommodating cavity;

the rotating shaft comprises a supporting structure, an operating structure and a connecting part, the supporting structure is mounted in the through hole accommodating cavity of the mounting base, and the operating structure is detachably arranged at one end of the supporting structure; the connecting part is detachably arranged at the other end of the supporting structure.

In one embodiment, the support structure includes a support spindle having a mounting interface coupled to the coupling member and a mounting assembly removably coupling the support spindle to the coupling member.

In one embodiment, the mounting assembly includes a transfer shaft and a first positioning element, one end of the transfer shaft is mounted on the mounting interface, the transfer shaft has a connection interface connected with the connection component, and the first positioning element fixes the transfer shaft to the support main shaft.

In one embodiment, the mounting assembly further comprises a locking sleeve, the locking sleeve is partially sleeved outside the transfer shaft and the connecting part, and is used for fixing the connecting part to the transfer shaft;

the locking sleeve is connected with the connecting part through a buckle, a thread or a positioning pin.

In one embodiment, the mounting assembly includes a stopping member and a sliding member slidably sleeved on the supporting spindle, the sliding member can block or expose the mounting interface when the sliding member slides along the supporting spindle, and the stopping member is used for limiting the movement of the sliding member exposed from the mounting interface.

In one embodiment, the sliding component includes a first limiting member, a sliding elastic member and a positioning sliding sleeve, the positioning sliding sleeve is slidably sleeved on the supporting main shaft, a limiting sliding groove is formed on the supporting main shaft, the first limiting member passes through the positioning sliding sleeve and is slidably mounted in the sliding groove, and the sliding elastic member is disposed in the positioning sliding sleeve and abuts against an inner wall of the positioning sliding sleeve and the stopping component;

when the positioning sliding sleeve compresses the sliding elastic piece, the positioning sliding sleeve can expose the mounting interface; the elastic force of the sliding elastic piece can enable the positioning sliding sleeve to shield the mounting interface.

In one embodiment, the stopping component includes a limiting sleeve disposed on the supporting spindle and a second positioning element for fixing the limiting sleeve to the supporting spindle, an end of the limiting sleeve extends into the positioning sliding sleeve and abuts against the sliding elastic element, and the limiting sleeve has a limiting step capable of limiting the positioning sliding sleeve.

In one embodiment, the mounting interface comprises a limiting groove arranged along the radial direction, the end part of the connecting part is provided with a limiting bulge, and the limiting bulge is assembled in the limiting groove along the radial direction;

or the mounting interface is an internal thread interface, and the end part of the connecting part is provided with an external thread matched with the internal thread interface.

In one embodiment, the mounting assembly further includes a third positioning element, the outer wall of the supporting main shaft is provided with a first positioning groove, the outer wall of the connecting member is provided with a second positioning groove, the first positioning groove and the second positioning groove are oppositely arranged, the outer wall of the positioning sliding sleeve is provided with a third positioning groove communicating the first positioning groove and the second positioning groove, and the third positioning element passes through the third positioning groove and is mounted in the first positioning groove and the second positioning groove.

In one embodiment, the operation structure comprises a knocking handle and an elastic connection assembly, the knocking handle is provided with a matching hole, the knocking handle is installed at the end, far away from the connecting component, of the supporting spindle through the matching hole, the supporting spindle is provided with a mounting hole arranged along the radial direction, and the elastic connection assembly is arranged in the mounting hole and extends out of the mounting hole to be abutted against the inner wall of the matching hole.

In one embodiment, the elastic connection assembly includes a knocking elastic member and a second limiting member, the knocking elastic member is disposed in the mounting hole, and the knocking elastic member is connected with the second limiting member and abuts against the inner wall of the mating hole.

In one embodiment, the end of the support spindle has a first guide surface, and the inner wall of the fitting hole has a second guide surface fitted with the first guide surface, and the first guide surface and the second guide surface are used for guiding the support spindle to be installed in the knocking handle.

An orthopedic surgery robot, comprising a robot body, a mechanical arm arranged on the robot body, and an implant installation tool according to any one of the above technical features;

the implant installation tool is used for installing an implant and is arranged in the mechanical arm, and the mechanical arm drives the implant installation tool to perform orthopedic surgery.

After the embodiment is adopted, the utility model at least has the following technical effects:

according to the implant installation tool and the orthopaedic surgery robot, one end of the supporting structure is detachably connected with the operation structure, the other end of the supporting structure is detachably provided with the connecting part, and the required implant is connected through the connecting part. The implant is installed by striking the strike assembly with a hammer in use. When the connecting part is disassembled, the connecting part of the adaptive implant can be replaced. Through adapting unit at bearing structure's demountable installation, realize the change of the adapting unit of different grade type to the implant of adaptation different grade type, effectual solution is terminal mechanical interface at present is unified leads to the problem of whole change mounting tool, need not to change whole instrument, when the implant of needs installation different grade type, only need with adapting unit dismantle change with the adapting unit of implant adaptation can, simplify the operating procedure, application scope is wide. Meanwhile, the implant mounting tool is simple in structure, convenient to assemble and disassemble and convenient to use.

Drawings

FIG. 1 is a perspective view of an implant installation tool according to a first embodiment of the present invention;

FIG. 2 is a schematic view of the implant installation tool of FIG. 1 showing the connection of the support structure to the attachment member;

FIG. 3 is a perspective view of the support structure in the implant installation tool shown in FIG. 1;

FIG. 4 is a perspective view of a coupling member of the implant installation tool shown in FIG. 1;

FIG. 5 is a schematic view of an implant installation tool in accordance with a second embodiment of the present invention;

FIG. 6 is a partial perspective view of the support spindle of the implant installation tool shown in FIG. 5;

FIG. 7 is a perspective view of a coupling member of the implant installation tool shown in FIG. 5;

FIG. 8 is a schematic view of an implant installation tool in accordance with a third embodiment of the present invention;

FIG. 9 is a partial perspective view of the support spindle of the implant installation tool shown in FIG. 8;

FIG. 10 is a perspective view of a coupling member of the implant installation tool shown in FIG. 8;

FIG. 11 is a perspective view of the operative structure and support spindle connection of the implant installation tool of FIG. 1;

FIG. 12 is a perspective view of the strike shank in the operational configuration shown in FIG. 11.

Wherein: 100. an implant installation tool; 110. a support structure; 111. supporting the main shaft; 1111. installing an interface; 1112. a limiting chute; 1113. a first positioning groove; 112. mounting the component; 1121. a transfer shaft; 1122. A first positioning member; 1123. a locking sleeve; 1124. a sliding member; 11241. positioning the sliding sleeve; 11242. a sliding elastic member; 11243. a first limit piece; 1125. a stopper member; 11251. a limiting sleeve; 11252. a second positioning member; 1126. a third positioning member; 120. an operating structure; 121. knocking the handle; 1211. a mating hole; 122. an elastic connection assembly; 1221. knocking the elastic piece; 1222. a second limiting member; 1223. a third limiting member; 130. a connecting member; 131. a connecting end; 132. a limiting bulge; 133. a second positioning groove; 140. And (7) mounting a base.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, 5 and 8, the present invention provides an implant installation tool 100. The implant installation tool 100 is applied to an orthopedic surgical robot, which installs an implant in a bone through the implant installation tool 100. Alternatively, the bone surgery robot may install the implant in the femur of the patient by the implant installation tool 100; of course, in other embodiments of the present invention, the orthopaedic surgical robot may also install the implant into other bones of the patient by the implant installation tool 100.

The existing installation tool is of an integrated structure, and when the installation tool is used, the implant is directly installed on a tail end mechanical interface of the installation tool, and the implant is installed on an implantation position through the installation tool. However, different implants are used in different orthopedic operations, and accordingly, the structure of the required mechanical end interface is different, so that the mechanical end interface needs to be replaced. This requires replacing the entire installation tool for implants of different interfaces, which is cumbersome and costly and inconvenient to use.

To this end, the present invention provides a novel implant installation tool 100. The implant installation tool 100 is a detachable structure, can adapt to different types of implants, and is simple in operation process, wide in application range and convenient for operators to use. The specific structure of the implant installation tool 100 is described in detail below.

Referring to fig. 1, 5 and 8, in one embodiment, the implant installation tool 100 includes a mounting base 140 and a rotational shaft. The mounting base 140 has a through-hole receiving cavity. The rotation shaft includes a support structure 110, an operation structure 120, and a connection member 130. Operation structure 120 is installed in the through-hole of mounting base and holds the chamber, and operation structure 120 can dismantle the one end that sets up in bearing structure 110, and the tip of adapting unit 130 can be dismantled and set up in the one end that bearing structure 110 kept away from operation structure 120, and adapting unit 130 is used for connecting the implant when orthopaedic surgery robot operation.

That is, the implant installation tool 100 is formed of an installation base 140 and a rotation shaft provided on the installation base 140. The mounting base 140 serves as a bearing for bearing various components of the implant installation tool 100, and the rotating shaft is installed in the through-hole receiving cavity of the mounting base 140, establishing a connection relationship between the mounting base 140 and the rotating shaft, forming the implant installation tool 100.

Specifically, in the rotating shaft, the support structure 110 is used to support the connecting operation structure 120 and the connecting member 130. One end of the support structure 110 is mounted with the operation structure 120, and the other end of the support structure 110 is mounted with the connection member 130, so that there is a certain distance between the connection member 130 and the operation structure 120. Thus, when the support structure 110 acts on the patient's bone through the connection member 130, it can be operated at a remote position, which facilitates the operation of medical staff and improves the comfort level during use.

The operation structure 120 is detachably provided at one end of the support structure 110. The handle structure 120 may be attached directly to the end of the support structure 110 during use, and the handle structure 120 may be detached directly from the end of the support structure 110 after use. Therefore, the operating structure 120 can be quickly assembled and disassembled, and is convenient for operators to use. Moreover, the handling structure 120 can increase the area of the end of the support structure 110, thereby increasing the cross-sectional area of the striking member, such as a hammer, and the handling structure 120, such that the striking member can act on the handling structure 120 to facilitate implantation of the implant into the patient by the operator.

An end of the connection member 130 is detachably mounted to the other end of the support structure 110. The coupling member 130 may couple an implant at the time of an orthopedic operation. When the orthopedic surgery is performed, after the connection part 130 is mounted on the support structure 110, the orthopedic surgery can be performed by directly mounting the implant required for the surgery on the connection part 130, and after the surgery is completed, the connection part 130 is removed from the implant.

Also, since there are differences between implants used in different orthopedic operations, there will be a certain difference between the specific structures of the connection part 130. Therefore, the connecting member 130 is detachably mounted to the support structure 110 in the present invention. When it is necessary to use other types of implants, the corresponding connecting member 130 is replaced, and the implants are mounted on the connecting member 130.

When the implant installation tool 100 of the present invention is used, the coupling member 130 is selected as appropriate according to the orthopedic surgery, and then the coupling member 130 and the manipulation structure 120 are respectively installed at both ends of the support structure 110. Then, the implant installation tool 100 is installed on the robot arm of the orthopaedic robot, the robot arm is controlled by the robot host to drive the implant installation tool 100 to move to the implantation position, and then the operation structure 120 is knocked by a knocking part such as a hammer and the support structure 110 is rotated to drive the connecting part 130, so as to implant the implant into the bone of the patient.

The implant installation tool 100 of the above embodiment can realize the replacement of the connection parts 130 of different types by the detachable installation of the connection parts 130 on the support structure 110 to adapt to different types of implants, thereby effectively solving the problem that the existing terminal mechanical interface is not uniform to cause the overall replacement of the installation tool, not needing to replace the overall tool, and when different types of implants are required to be installed, only needing to detach and replace the connection parts 130 from the connection parts 130 to adapt to the implants, simplifying the operation steps, and having wide application range. Meanwhile, the implant installation tool 100 of the present invention has a simple structure, is convenient to assemble and disassemble, and is convenient to use.

In one embodiment, the support structure 110 includes a support spindle 111 and a mounting assembly 112, the support spindle 111 has a mounting interface 1111 detachably connected to the mounting assembly 112, and the connecting member 130 is disposed on the mounting assembly 112 such that the support spindle 111 and the connecting member 130 rotate synchronously.

The support spindle 111 is a rod-shaped member or tube extending in the longitudinal direction, that is, the support structure is a rod-shaped member or tube extending in the longitudinal direction. The operation structure 120 is installed at one end of the supporting main shaft 111, the installation interface 1111 is arranged at the other end of the supporting main shaft 111, and the connecting component 130 is detachably installed in the installation interface 1111 through the installation component 112, so that the supporting main shaft 111 and the connecting component 130 can synchronously rotate at the same time of ensuring that the supporting main shaft 111 and the connecting component 130 are reliably connected, and the transmission of torque is realized. The end of the connection member 130 may be directly mounted in the mounting interface 1111 or may be indirectly mounted in the mounting interface 1111.

Referring to fig. 1 to 4, in the first embodiment of the present invention, the connection member 130 is indirectly installed in the mounting interface 1111. When the connecting component 130 is indirectly mounted to the mounting interface 1111, the connecting component 130 is detachably mounted to the mounting interface 1111 via the mounting assembly 112. In this way, the supporting shaft can drive the connecting member 130 to rotate synchronously through the mounting assembly 112, so as to transmit torque to the connecting member 130.

In one embodiment, the mounting assembly 112 includes an adapter tube 1121 and a first positioning element 1122, one end of the adapter tube 1121 is mounted to the mounting interface 1111, the adapter tube 1121 has a connection interface connected to the connection member 130, and the first positioning element 1122 fixes the adapter tube 1121 to the support spindle 111.

The adapter shaft 1121 is used to realize the adapter connection between the connection component 130 and the support main shaft 111. One end of adapter shaft 1121 is attached to mounting interface 1111, the other end of adapter shaft 1121 is provided with a connection interface, and the end of connection member 130 is attached to the connection interface. That is, the connecting member 130 is mounted on the support main shaft 111 via the adapter shaft 1121. Moreover, the end of the adapter shaft 1121 is fixed to the support main shaft 111 by the first positioning member 1122, so that the adapter shaft 1121 is prevented from rotating relative to the support main shaft 111, and the adapter shaft 1121 is also prevented from being separated from the support main shaft 111. Optionally, the first locator 1122 is a locator pin. Of course, in another embodiment of the present invention, first positioning element 1122 may be a screw or other member capable of fixing adapter shaft 1121 to support main shaft 111.

Optionally, adapter shaft 1121 includes a first shaft segment having a cross-sectional dimension that corresponds to the cross-sectional dimension of mounting interface 1111 and a second shaft segment connecting the first shaft segment. The end of the second shaft section far away from the first shaft section is provided with a connecting interface along the axial direction, and the end part of the connecting component 130 is arranged in the mounting interface 1111. Optionally, the first shaft segment and the second shaft segment are integrated to ensure the strength of the adapting shaft 1121, so as to ensure the reliability of the operation of the adapting shaft 1121. Optionally, the second shaft segment has a cross-sectional dimension greater than a cross-sectional dimension of the first shaft segment. This ensures the coupling strength of the second shaft section, so that the second shaft section is reliably coupled to the coupling member 130.

Optionally, the cross-sectional shape of the first shaft segment is circular, polygonal, irregular, or the like. Accordingly, the mounting interface 1111 is shaped to conform to the cross-sectional shape of the first shaft segment to ensure that the first shaft segment is able to be mounted in the mounting interface 1111.

Optionally, the connection interface is an interference fit with the end of the connection component 130, or is fixed by a threaded connection. Alternatively, the cross-sectional shape of the connection interface is a polygon or an irregular shape, and the end of the connection part 130 is also a polygon or an irregular shape. Furthermore, in order to prevent the connecting member 130 from being detached from the support shaft 111, the mounting assembly 112 further includes a locking sleeve 1123, by which the displacement of the connecting member 130 is restricted. Optionally, the connecting member 130 has a connecting end 131, and the cross section of the connecting end 131 is polygonal.

In an embodiment, the mounting assembly 112 further includes a locking sleeve 1123, and the locking sleeve 1123 is partially sleeved on the outer sides of the adapting shaft 1121 and the connecting member 130 for fixing the connecting member 130 to the adapting shaft 1121. After the connecting member 130 is mounted on the adapting shaft 1121, the locking sleeve 1123 may be connected to the outer wall of the connecting member 130, so that the connecting member 130 is fixed on the support main shaft 111 and the connecting member 130 is prevented from moving in the axial direction. Furthermore, due to the polygonal connection interface between connection end 131 of connection member 130 and adapter shaft 1121, it is ensured that support shaft 111 and connection member 130 rotate synchronously.

That is, the rotational displacement of connecting member 130 can be restricted by the engagement of connecting end 131 of connecting member 130 with the connecting interface of adapter shaft 1121; the axial displacement of the connecting part 130 is limited by the connection of the locking sleeve 1123 and the connecting part 130, and the connecting part 130 is prevented from being separated from the support main shaft 111. The polygonal connecting end 131 and the locking sleeve 1123 can ensure that the connecting component 130 is reliably arranged on the supporting main shaft 111 through the transfer shaft 1121, so that the installation of the implant in the later orthopedic surgery is facilitated.

Optionally, the locking sleeve 1123 is threadably connected to the connecting member 130. The outer wall of the connecting member 130 has external threads and the inner wall of the locking sleeve 1123 has internal threads. The locking sleeve 1123 is coupled to the coupling member 130 by the engagement of the external thread and the internal thread to restrict the axial displacement of the coupling member 130. Of course, in other embodiments of the present invention, the locking sleeve 1123 may be connected to the connecting member 130 by a positioning pin or a screw, etc. to limit the axial displacement of the connecting member 130.

Referring to fig. 1, in the present embodiment, the operation structure 120 is installed at one end of the support main shaft 111, and the adapter 1121 is fixed in the installation interface 1111 at the other end of the support main shaft 111 through the first positioning member 1122. And the locking sleeve 1123 is sleeved on the adapting shaft 1121. Subsequently, the connection end 131 of the connection member 130 is fitted into the connection interface of the transfer shaft 1121, and the locking sleeve 1123 is tightened to fix the connection member 130, completing the assembly of the implant installation tool 100. Bone surgery may then be performed.

Referring to fig. 5 and 8, in the second and third embodiments of the present invention, when the connecting component 130 is directly installed at the installation interface 1111, the installation component is movably sleeved outside the connecting component 130 and the supporting spindle 111, so as to ensure the connection between the supporting spindle 111 and the connecting component 130 and ensure that the two can rotate synchronously.

In an embodiment, the mounting assembly 112 includes a stopping component 1125 and a sliding component 1124 slidably sleeved on the supporting spindle 111, when the sliding component 1124 slides along the supporting spindle 111, the sliding component 1124 can cover or expose the mounting interface 1111, and the stopping component 1125 is used to limit the movement of the sliding component 1124 exposed from the mounting interface 1111.

The end of the connection member 130 is directly mounted in the mounting interface 1111 of the support main shaft 111, and the mounting interface 1111 can limit the axial direction and the circumferential direction of the connection member 130. The stopping part 1125 is fixedly disposed on the supporting spindle 111 for limiting the position. The sliding member 1124 is slidably disposed on the supporting spindle 111, and the sliding member 1124 can expose or shield the mounting interface 1111 of the supporting spindle 111 when the sliding member 1124 slides.

When the sliding member 1124 exposes the mounting interface 1111, the end of the connection member 130 can be mounted in the mounting interface 1111 or removed from the mounting interface 1111. When the sliding member 1124 covers the mounting interface 1111, the sliding member 1124 can restrict the connecting member 130 from sliding out of the mounting interface 1111. At this time, the axial displacement as well as the circumferential rotation of the connection member 130 is restricted, so that the connection member 130 is reliably located in the mounting interface 1111. The support main shaft 111 can drive the connecting component 130 to move and rotate. When the sliding component 1124 is exposed out of the mounting interface 1111, the sliding component 1124 can abut against the stopping component 1125, the stopping component 1125 limits the movement displacement of the sliding component 1124, the over-stroke movement of the sliding component 1124 is avoided, and the movement displacement of the sliding component 1124 is ensured to be accurate.

When the implant installation tool 100 of the present embodiment is assembled, the operation structure 120 is first installed at one end of the support spindle 111, and the sliding member 1124 is slid along the support spindle 111 and abuts against the stop member 1125 to expose the installation interface 1111 of the support spindle 111. Subsequently, the end of the connection member 130 is fitted into the mounting interface 1111, and the axial displacement and the circumferential displacement of the connection member 130 are restricted by the mounting interface 1111. The sliding member 1124 is further controlled to slide along the support main shaft 111 so that the sliding member 1124 blocks the mounting interface 1111, and at this time, the sliding member 1124 abuts against the end of the connection member 130, thereby restricting the connection member 130 from sliding out of the support main shaft 111. When the connection part 130 needs to be replaced, the sliding assembly is controlled to slide to expose the installation interface 1111, the connection part 130 is removed from the installation interface 1111, another connection part 130 is replaced, and the sliding part 1124 is controlled to slide to shield the installation interface 1111.

In an embodiment, the sliding component 1124 includes a first position-limiting member 11243, a sliding elastic member 11242 and a positioning sliding sleeve 11241, the positioning sliding sleeve 11241 is slidably sleeved on the supporting spindle 111, a position-limiting sliding slot 1112 is formed on the supporting spindle 111, the first position-limiting member 11243 passes through the positioning sliding sleeve 11241 and is slidably installed in the sliding slot, and the sliding elastic member 11242 is disposed in the positioning sliding sleeve 11241 and abuts against an inner wall of the positioning sliding sleeve 11241 and the stopping component 1125. When the positioning sliding sleeve 11241 compresses the sliding elastic piece 11242, the positioning sliding sleeve 11241 can expose the mounting interface 1111; the elastic force of the sliding elastic member 11242 can make the positioning sliding sleeve 11241 block the mounting interface 1111.

The positioning sliding sleeve 11241 is a hollow sleeve structure, the positioning sliding sleeve 11241 can be slidably sleeved on the supporting spindle 111, and the positioning sliding sleeve 11241 has a certain axial length, so that the positioning sliding sleeve 11241 can cover the mounting interface 1111. The sliding elastic piece 11242 is disposed inside the positioning sliding sleeve 11241, and one end of the sliding elastic piece 11242 abuts against the inner wall of the positioning sliding sleeve 11241 and the other end of the sliding elastic piece 11242 abuts against the stopper 1125. When the positioning sliding sleeve 11241 slides along the supporting spindle 111, the positioning sliding sleeve 11241 can compress or release the sliding elastic member 11242 to expose or shield the mounting interface 1111.

As shown in fig. 5 and 8, an external force acts on the positioning sliding sleeve 11241, so that when the positioning sliding sleeve 11241 slides rightwards in fig. 5 and 8, the positioning sliding sleeve 11241 can compress the sliding elastic piece 11242, and at the same time, the positioning sliding sleeve 11241 gradually exposes the mounting interface 1111, and the connection component 130 is mounted and dismounted. When the external force of the positioning sliding sleeve 11241 disappears, the elastic force of the sliding elastic piece 11242 can drive the positioning sliding sleeve 11241 to return, so that the positioning sliding sleeve 11241 slides leftwards in the directions shown in fig. 5 and 8, at this time, the positioning sliding sleeve 11241 can cover the mounting interface 1111, so that the connecting component 130 can be reliably located in the mounting interface 1111.

Optionally, the positioning slide 11241 comprises a first sleeve and a second sleeve. The inner diameter of the first sleeve is larger than that of the second sleeve, a sliding elastic piece 11242 is arranged in the first sleeve, the second sleeve is arranged at one end of the first sleeve far away from the stopping part 1125, and the second sleeve is used for shielding the mounting interface 1111 of the support main shaft 111. Optionally, the first sleeve and the second sleeve are of a unitary structure.

In addition, a limit sliding groove 1112 matched with the first limit piece 11243 is further arranged on the support main shaft 111, and the sliding of the positioning sliding sleeve 11241 is guided by the matching of the first limit piece 11243 and the limit sliding groove 1112, so that the positioning sliding sleeve 11241 can slide along the axial direction, and the deflection of the positioning sliding sleeve 11241 is avoided. Specifically, the limiting sliding groove 1112 is disposed on an outer wall of the supporting spindle 111 along an axial direction, and the first limiting member 11243 passes through the positioning sliding sleeve 11241 and is installed in the limiting sliding groove 1112. When the positioning sliding sleeve 11241 slides along the supporting spindle 111, the first limiting member 11243 can be driven to slide in the limiting sliding groove 1112, so that the positioning sliding sleeve 11241 can accurately move.

In an embodiment, the stopping component 1125 includes a limiting sleeve 11251 disposed on the supporting spindle 111 and a second positioning component 11252 for fixing the limiting sleeve 11251 to the supporting spindle 111, an end of the limiting sleeve 11251 extends into the positioning sliding sleeve 11241 and abuts against the sliding elastic component 11242, the limiting sleeve 11251 has a limiting step, and the limiting step can limit the positioning sliding sleeve 11241.

The limiting sleeve 11251 is sleeved on the supporting spindle 111, one end of the limiting sleeve 11251 can extend into the positioning sliding sleeve 11241 and abut against the sliding elastic piece 11242, the limiting sleeve 11242 is limited, the sliding elastic piece 11242 is prevented from shifting, and the positioning sliding sleeve 11241 can be accurately compressed or released to the sliding elastic piece 11242. The outer wall of the limiting sleeve 11251 is further provided with a limiting step, and when the positioning sliding sleeve 11241 slides rightwards along the supporting spindle 111, the positioning sliding sleeve 11241 compresses the sliding elastic piece 11242 to gradually expose the mounting interface 1111. When the positioning sliding sleeve 11241 abuts against the limiting step of the limiting sleeve 11251, it indicates that the positioning sliding sleeve 11241 moves in place, and at this time, the mounting interface 1111 is completely exposed, and the connecting component 130 can be mounted or dismounted.

Moreover, the limiting sleeve 11251 is fixed on the main supporting shaft 111 by a second positioning piece 11252, so that the limiting sleeve 11251 is prevented from moving along the axial direction, and the limiting sleeve 11251 is ensured to be fixed reliably. Optionally, the second positioning member 11252 is a positioning pin. Of course, in other embodiments of the present invention, the second positioning member 11252 can be a screw or other member capable of fixing the position-limiting sleeve 11251.

Referring to fig. 5 to 7, in the second embodiment of the present invention, the mounting interface 1111 includes a limiting groove disposed along the radial direction, the end of the connecting member 130 has a limiting protrusion 132, and the limiting protrusion 132 is detachably mounted to the limiting groove along the radial direction. After the connection member 130 is mounted in the limiting groove through the limiting protrusion 132, the axial displacement and the circumferential displacement of the connection member 130 can be limited.

When the implant installation tool 100 of this embodiment is assembled, the operation structure 120 is first installed at one end of the support spindle 111, and the positioning sliding sleeve 11241 compresses the spring to slide along the left side of the limiting sleeve 11251, and when the positioning sliding sleeve 11241 abuts against the limiting step of the limiting sleeve 11251, the installation interface 1111 at the end of the support spindle 111 is exposed, and the connection component 130 can be installed. Then the positioning sliding sleeve 11241 is released, and the elastic force of the sliding elastic piece 11242 can drive the positioning sliding sleeve 11241 to reset so as to shield the installation interface 1111, thereby completing the assembly of the implant installation tool 100. Bone surgery may then be performed.

Referring to fig. 8 to 10, in the third embodiment of the present invention, the mounting interface 1111 is an internal threaded interface, and the end of the connection member 130 has an external thread to be engaged with the internal threaded interface. That is, the connection member 130 is fitted into the mounting interface 1111 by the engagement of the male screw and the female screw, and the axial displacement and the circumferential displacement of the connection member 130 can be restricted. Alternatively, the mounting interface 1111 is a protrusion having external threads and the attachment member 130 has a threaded hole.

In an embodiment, the mounting assembly 112 further includes a third positioning member 1126, the outer wall of the supporting main shaft 111 defines a first positioning groove 1113, the outer wall of the connecting member 130 defines a second positioning groove 133, the first positioning groove 1113 and the second positioning groove 133 are correspondingly disposed, the outer wall of the positioning sliding sleeve 11241 defines a third positioning groove communicating the first positioning groove 1113 with the second positioning groove 133, and the third positioning member 1126 passes through the third positioning groove and is mounted in the first positioning groove 1113 and the second positioning groove 133.

After the connecting member 130 is installed in the installation slot, the third positioning member 1126 is partially located in the first positioning slot 1113 of the connecting member 130 and partially located in the second positioning slot 133 of the supporting spindle 111, and the third positioning member 1126 can limit the circumferential rotation of the connecting member 130 to play a role in preventing loosening of threads. Optionally, the third positioning member 1126 is a positioning key. The third positioning element 1126 is connected to the first positioning slot 1113 and the second positioning slot 133 through interference fit. Of course, in other embodiments of the present invention, the third positioning member 1126 may also be a dowel pin or other member capable of avoiding loose threads.

When the implant installation tool 100 of this embodiment is assembled, the operation structure 120 is first installed at one end of the support spindle 111, and the positioning sliding sleeve 11241 compresses the spring to slide along the left side of the limiting sleeve 11251, and when the positioning sliding sleeve 11241 abuts against the limiting step of the limiting sleeve 11251, the installation interface 1111 at the end of the support spindle 111 is exposed, and the connection component 130 can be installed. Then the positioning sliding sleeve 11241 is loosened, and the elastic force of the sliding elastic piece 11242 can drive the positioning sliding sleeve 11241 to reset so as to shield the installation interface 1111; the third positioning member 1126 is then installed into the first and second mounting slots to complete the assembly of the implant installation tool 100. Bone surgery may then be performed.

Referring to fig. 1, 11 and 12, in an embodiment, the operation structure 120 includes a knocking handle 121 and a resilient coupling assembly 122, the knocking handle 121 has a fitting hole 1211, the knocking handle 121 is mounted to an end of the support spindle 111 away from the connection part 130 through the fitting hole 1211, the support spindle 111 has a mounting hole arranged in a radial direction, and the resilient coupling assembly 122 is disposed in the mounting hole and extends out of the mounting hole to abut against an inner wall of the fitting hole 1211.

The striking handle 121 is fitted with the support spindle 111 through a fitting hole 1211, and the fitting hole 1211 is installed at an end portion of the support spindle 111. After the striking handle 121 is mounted to the end of the support spindle 111 through the fitting hole 1211, the mounting hole of the support spindle 111 is located in the fitting hole 1211 of the striking handle 121. After the elastic connection assembly 122 is disposed in the mounting hole, the end of the elastic connection assembly 122 may extend out of the mounting hole by the elastic force of the elastic connection assembly 122 and abut against the inner wall of the fitting hole 1211, so as to limit the position of the knocking handle 121, and the knocking handle 121 is fixed on the support spindle 111.

In an embodiment, the elastic connection assembly 122 includes a knocking elastic member 1221 and a second stopper 1222, the knocking elastic member 1221 is disposed in the installation hole, the knocking elastic member 1221 is connected to the second stopper 1222, and the knocking elastic member 1221 abuts against an inner wall of the fitting hole 1211. The inner wall of the fitting hole 1211 has a fitting groove for fitting an end of the second stopper 1222.

The knocking elastic piece 1221 is arranged in the mounting hole, one end of the knocking elastic piece 1221 is connected with the inner wall of the mounting hole, and the other end of the knocking elastic piece 1221 is connected with the second limiting piece 1222. The elastic force of the knocking elastic member 1221 can expose the end of the second stopper 1222 to the mounting hole. Optionally, the second retaining member 1222 is a steel ball.

When the knocking handle 121 is installed, the inner wall of the fitting hole 1211 can abut against the second limiting member 1222 and compress the knocking elastic member 1221, and after the second limiting member 1222 moves to the installation groove, the elastic force of the knocking elastic member 1221 can push the second limiting member 1222 in the installation groove, so that the knocking handle 121 is fixed. When the knocking handle 121 is detached, the second stopper 1222 is moved out of the mounting groove by applying an external force to the knocking handle 121, and then the knocking handle 121 can be detached from the support spindle 111.

In an embodiment, the elastic connection assembly 122 further includes a third limiting member 1223, the third limiting member 1223 is disposed in the installation hole, and the third limiting member 1223 limits an end of the knocking elastic member 1221 away from the second limiting member 1222. That is, the knocking elastic member 1221 is connected to the third limiting member 1223 at one end and the second limiting member 1222 at the other end in the installation hole. Optionally, the third limiting member 1223 is a positioning pin.

In one embodiment, the end of the support spindle 111 has a first guide surface, and the inner wall of the fitting hole 1211 has a second guide surface fitted with the first guide surface, and the first guide surface and the second guide surface are used to guide the support spindle 111 to be installed in the knocking handle 121. The first guide surface and the second guide surface are inclined surfaces, which can facilitate the installation of the knocking handle 121 and the supporting spindle 111, the first guide surface is a chamfer structure of the edge of the supporting spindle 111, and the second guide surface can enable the matching hole 1211 to form a flaring structure. Meanwhile, the second guiding slope can facilitate the sliding of the second stopper 1222 into the mating hole 1211.

According to the implant installation tool 100 of the embodiment, the connection part 130 is detachably installed on the support main shaft 111, so that the connection part 130 of different types can be replaced to adapt to different types of implants, an integral tool does not need to be replaced, when different types of implants need to be installed, the connection part 130 only needs to be detached and replaced, the connection part 130 adapted to the implants is replaced, operation steps are simplified, and the application range is wide. Meanwhile, the implant installation tool 100 of the present invention occupies a small space, has a simple structure, is convenient to assemble and disassemble, and is convenient to use.

The present invention also provides an orthopedic surgical robot including a robot body, a robot arm provided to the robot body, and the implant installation tool 100 in the above embodiment. The implant installation tool 100 is used to install an implant and is disposed in a robotic arm that carries the implant installation tool 100 to perform an orthopedic procedure. After the orthopedic surgery robot of the utility model adopts the implant installation tool 100 of the above embodiment, different types of implants can be adapted, and the surgical requirements of different situations can be met. Moreover, the position of the implant can be detected in real time by the robot main body through the implant installation tool 100, and the installation precision and success probability of the implant are improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An implant installation tool, comprising:

the mounting base is provided with a through hole accommodating cavity;

2. The implant installation tool of claim 1, wherein said support structure includes a support spindle having a mounting interface for coupling with said coupling member, and a mounting assembly removably coupling said support spindle with said coupling member.

3. The implant installation tool of claim 2, wherein said mounting assembly includes a swivel shaft having one end mounted to said mounting interface and a first retainer connecting said swivel shaft to said support spindle.

4. The implant installation tool of claim 3, wherein the installation assembly further comprises a locking sleeve partially disposed outside the coupling shaft and the connecting member for securing the connecting member to the coupling shaft;

5. The implant installation tool of claim 2, wherein the installation assembly comprises a stop member and a sliding member slidably sleeved on the support spindle, the sliding member can block or expose the installation interface when the sliding member slides along the support spindle, and the stop member is used for limiting the movement of the sliding member exposed out of the installation interface.

6. The implant installation tool according to claim 5, wherein the sliding member comprises a first position-limiting member, a sliding elastic member and a positioning sliding sleeve, the positioning sliding sleeve is slidably sleeved on the supporting main shaft, a limiting sliding groove is formed on the supporting main shaft, the first position-limiting member is slidably installed in the sliding groove through the positioning sliding sleeve, and the sliding elastic member is disposed in the positioning sliding sleeve and abuts against an inner wall of the positioning sliding sleeve and the stopping member;

7. The implant installation tool according to claim 6, wherein the stop member comprises a limiting sleeve disposed on the support main shaft and a second positioning member for fixing the limiting sleeve to the support main shaft, an end of the limiting sleeve extends into the positioning sleeve and abuts against the sliding elastic member, and the limiting sleeve has a limiting step capable of limiting the positioning sleeve.

8. The implant installation tool according to any one of claims 6 to 7, wherein the installation interface comprises a limiting groove arranged along the radial direction, the end part of the connecting part is provided with a limiting bulge, and the limiting bulge is assembled in the limiting groove along the radial direction;

9. The implant installation tool according to claim 8, wherein the installation assembly further comprises a third positioning member, the outer wall of the support main shaft is provided with a first positioning groove, the outer wall of the connection member is provided with a second positioning groove, the first positioning groove and the second positioning groove are arranged oppositely, the outer wall of the positioning sliding sleeve is provided with a third positioning groove for communicating the first positioning groove and the second positioning groove, and the third positioning member passes through the third positioning groove and is installed in the first positioning groove and the second positioning groove.

10. The implant installation tool according to claim 2, wherein the operation structure includes a striking shank having a fitting hole through which the striking shank is mounted to an end of the support spindle away from the connection member, the support spindle having a mounting hole provided in a radial direction, and an elastic connection member provided in the mounting hole and protruding out of the mounting hole to abut against an inner wall of the fitting hole.

11. The implant installation tool according to claim 10, wherein the elastic connection assembly comprises a striking elastic member and a second limiting member, the striking elastic member is disposed in the installation hole, and the striking elastic member is connected with the second limiting member and abuts against the inner wall of the fitting hole.

12. The implant installation tool of claim 10, wherein the end of said support spindle has a first guide surface, the inner wall of said mating bore has a second guide surface that mates with said first guide surface, said first and second guide surfaces for guiding the installation of said support spindle in said strike shank.

13. An orthopedic surgical robot comprising a robot body, a robot arm provided to the robot body, and the implant installation tool according to any one of claims 1 to 12;