CN117462204A

CN117462204A - Acetabular file

Info

Publication number: CN117462204A
Application number: CN202311781375.1A
Authority: CN
Inventors: 秦子川; 毛联甲; 张少坤
Original assignee: Beijing AK Medical Co Ltd
Current assignee: Beijing AK Medical Co Ltd
Priority date: 2023-12-22
Filing date: 2023-12-22
Publication date: 2024-01-30

Abstract

The present invention provides an acetabular file comprising: the file comprises a body, a file body and a file body, wherein the body comprises an operating rod and a file, the operating rod is provided with a power input end and a file connecting end which are oppositely arranged, and the file is rotatably arranged at the file connecting end; the positioning assembly comprises a positioning instrument and a tracer, the tracer is arranged on the operating rod, the tracer is provided with a plurality of optical positioning parts, and the positioning instrument can receive light reflected by the plurality of optical positioning parts so as to position the tracer. Through the technical scheme that this application provided, can solve the problem that the angle and the degree of depth of the unable accurate grinding of acetabular bone file among the correlation technique.

Description

Acetabular file

Technical Field

The invention relates to the technical field of acetabular files, in particular to an acetabular file.

Background

The artificial hip joint replacement is to fix artificial prosthesis comprising femur part and acetabulum part onto normal bone to replace diseased joint and to reconstruct the normal function of patient's hip joint.

Before the artificial prosthesis is implanted into a human body, bone of lesions of a patient needs to be removed. In the related art, pathological bone of acetabulum is ground by using an acetabular file, and the shape and the size of acetabulum are trimmed and adjusted simultaneously, so that good cooperation between an artificial prosthesis and the acetabulum of a human body is ensured, and a stable joint replacement effect is realized.

However, during an intraoperative procedure, the angle and depth of grinding of the acetabular file are completely dependent on some bony landmarks of the patient and the clinical experience of the physician, and the desired angle and depth of the acetabulum cannot be accurately ground.

Disclosure of Invention

The invention provides an acetabular file, which aims to solve the problem that an acetabular file in the related art cannot accurately grind the angle and depth of a needed acetabulum.

The present invention provides an acetabular file comprising: the file comprises a body, a file body and a file body, wherein the body comprises an operating rod and a file, the operating rod is provided with a power input end and a file connecting end which are oppositely arranged, and the file is rotatably arranged at the file connecting end; the positioning assembly comprises a positioning instrument and a tracer, the tracer is arranged on the operating rod, the tracer is provided with a plurality of optical positioning parts, and the positioning instrument can receive light reflected by the plurality of optical positioning parts so as to position the tracer.

Further, the optical positioning part is a reflector, and the tracer further comprises a positioning frame, and the reflectors are arranged on the positioning frame at intervals along the circumferential direction of the positioning frame.

Further, the locating frame is provided with a first locating plate, a second locating plate, a third locating plate and a fourth locating plate, the first locating plate, the second locating plate, the third locating plate and the fourth locating plate are arranged at intervals along the circumference of the tracer, and the first locating plate, the second locating plate, the third locating plate and the fourth locating plate are all provided with reflective sheets.

Further, the tracer still includes the link, and the lower extreme and the action bars of link can be dismantled and be connected, and the lower extreme and the upper end of link of locating rack can be dismantled and be connected.

Further, the tracer still includes upper limit piece, lower limit piece and reset piece, the lower extreme of link is provided with the spliced pole, the locating rack has spliced eye, first spacing groove and holding tank that is linked together, the spliced eye extends along vertical, lower limit piece sets up in the holding tank along horizontal movability, the upper groove wall in first spacing groove is located the top of lower limit piece, reset piece is located the outside of lower limit piece and laminates with lower limit piece mutually in order to provide the restoring force that makes lower limit piece inwards remove, when the spliced pole inserts and locates the spliced pole, upper limit piece is connected with the spliced pole, upper limit piece inserts and locates first spacing groove and with the upper groove wall spacing cooperation of first spacing groove, and, lower limit piece and the spacing cooperation of lower extreme of spliced pole.

Further, the reset piece comprises an elastic cylinder sleeved on the positioning frame, the elastic cylinder comprises a connecting ring and a plurality of elastic arms, the plurality of elastic arms are arranged on the connecting ring along the circumferential direction of the connecting ring at intervals, the connecting ring is positioned above the positioning frame, and the elastic arms are attached to the lower limiting piece to provide restoring force.

Further, the positioning frame comprises an outer sleeve and an inner sleeve which are connected, a plurality of elastic arms are arranged between the inner sleeve and the outer sleeve, the lower limiting piece comprises balls, and a gap between the inner sleeve and the outer sleeve is smaller than the diameter of the balls.

Further, the locating rack still has dodge groove and spread groove with the spliced eye intercommunication, dodge the groove and extend along vertical, spread groove along transversely extending, dodge groove and first spacing groove all with the spread groove intercommunication and all set up in the top of spread groove, go up the locating part and include the spacer pin, insert when locating the spliced eye at the spliced pole, the spacer pin enters into to first spacing inslot through dodging groove and spread groove.

Further, when the upper limiting piece is located in the connecting groove, the plug-in column is located at an assembling position where the plug-in column contacts with the lower limiting piece, and the plug-in column drives the lower limiting piece to move towards a direction close to the elastic arm.

Further, the operating rod comprises a rod body, a bearing and a sheath, the sheath is sleeved on the periphery of the rod body, the outer ring of the bearing is connected with the sheath, the inner ring of the bearing is connected with the rod body, and the power input end and the file connecting end are both arranged on the rod body; the end part of the sheath is provided with a limiting table, and the tracer is sleeved at the limiting table; and/or be provided with spacing hole on the body of rod, the action bars still includes the elastic column, and the elastic column is located spacing downthehole, and the elastic column has the spacing downthehole blocking position of protrusion and is located the position of dodging of spacing downthehole.

Further, be provided with guiding gutter and the second spacing groove that is linked together on the action bars, guiding gutter and second spacing groove all extend along the length direction of action bars, acetabular bone file still includes the adapter sleeve, spring and stop collar, adapter sleeve and stop collar are all movably overlapped and are established on the action bars, the both ends of spring are connected with adapter sleeve and stop collar respectively, the adapter sleeve has hookup location and unclamp the position, be provided with the spacing post on the stop collar, when the adapter sleeve is located hookup location, the adapter sleeve cooperates with the file link in order to be connected with the file, the spacing post is located the second spacing inslot, when the adapter sleeve moves to unclamp the position by hookup location, adapter sleeve and file separation, the spacing post moves to the guiding gutter by the second spacing groove.

By applying the technical scheme of the invention, the acetabular file comprises a body and a positioning assembly, and when the acetabular file is used, the positioning instrument is used for receiving light rays reflected by a plurality of optical positioning parts of the tracer, so that the tracer can be positioned by the positioning instrument. When an operator operates the operating rod to grind the acetabulum of the human body by the file, the grinding angle and the grinding depth of the acetabular file can be reflected in real time, and compared with the grinding by using marks and clinical experience of doctors, the grinding is more accurate.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

FIG. 1 shows a schematic structural view of an acetabular file provided according to an embodiment of the invention;

FIG. 2 shows a schematic structural view of a tracer for an acetabular file according to an embodiment of the invention;

FIG. 3 illustrates a cross-sectional view of a tracer of an acetabular file provided according to an embodiment of the invention;

FIG. 4 illustrates a schematic structural view of a reduction of an acetabular file according to an embodiment of the invention;

FIG. 5 shows a schematic structural view of a spacer of an acetabular file according to an embodiment of the invention;

FIG. 6 illustrates yet another structural schematic of a spacer of an acetabular file according to an embodiment of the invention;

FIG. 7 shows an exploded view of the lever and rasp of the acetabular file provided in accordance with an embodiment of the invention;

FIG. 8 shows a partial enlarged view at A in FIG. 7;

FIG. 9 shows a partial enlarged view at B in FIG. 7;

fig. 10 illustrates a cross-sectional view of a sheath of an acetabular file provided in accordance with an embodiment of the invention.

Wherein the above figures include the following reference numerals:

10. a body; 11. an operation lever; 111. a rod body; 1111. a limiting hole; 112. a sheath; 113. an elastic column; 114. a guide groove; 115. the second limit groove; 116. a bearing; 12. a file;

20. a positioning assembly; 21. a tracer; 211. an optical positioning section; 212. a positioning frame; 2121. a plug hole; 2122. a first limit groove; 2123. an outer sleeve; 2124. an inner sleeve; 2125. an avoidance groove; 2126. a connecting groove; 213. a connecting frame; 2131. a plug-in column;

30. an upper limit member; 31. a lower limit member; 32. a reset member; 321. a connecting ring; 322. an elastic arm;

40. connecting sleeves; 41. a spring; 42. a limit sleeve; 421. and a limit column.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 10, an embodiment of the present invention provides an acetabular file, which includes a body 10 and a positioning assembly 20, the body 10 including an operation lever 11 and a file 12, the operation lever 11 having a power input end and a file connection end which are oppositely disposed, the file 12 being rotatably disposed at the file connection end; the positioning assembly 20 comprises a positioning instrument and a tracer 21, the tracer 21 is arranged on the operating rod 11, the tracer 21 is provided with a plurality of optical positioning parts 211, and the positioning instrument can receive light reflected by the plurality of optical positioning parts 211 so as to position the tracer 21.

By applying the technical scheme of the invention, the acetabular file comprises the body 10 and the positioning component 20, and when in use, the positioning instrument is used for receiving light rays reflected by the plurality of optical positioning parts 211 of the tracer 21, so that the tracer 21 can be positioned by the positioning instrument, and the tracer 21 is arranged on the operating rod 11, so that the operating rod 11 can be positioned, and the file 12 can also be positioned. When an operator operates the operating lever 11 to grind the acetabulum of the human body by the rasp 12, the grinding angle and the grinding depth of the acetabular bone rasp can be reflected in real time, and compared with the method adopting marks and clinical experience of doctors, the grinding is more accurate.

Specifically, prior to rasping the acetabulum, a tool such as a positioning probe is required to be used in conjunction with a positioning instrument to simulate the human acetabulum to the system. Meanwhile, the body 10 is simulated to a system by matching the positioning instrument and the tracer, so that the relative position relationship between the body 10 and the acetabulum of the human body is determined, and the grinding angle and the grinding depth are guided.

As shown in fig. 2, the optical positioning portion 211 is a reflective sheet, and the tracer 21 further includes a positioning frame 212, and a plurality of reflective sheets are disposed on the positioning frame 212 at intervals along a circumferential direction of the positioning frame 212. By adopting the arrangement, the device has the advantages of simple structure and convenient positioning.

In the present embodiment, a plane can be determined by using a plurality of reflection sheets, and the center formed by the plurality of reflection sheets can determine a normal line perpendicular to the plane, thereby enabling positioning of the tracer 21.

As shown in fig. 1, the positioning frame 212 has a first positioning plate, a second positioning plate, a third positioning plate and a fourth positioning plate, and the first positioning plate, the second positioning plate, the third positioning plate and the fourth positioning plate are disposed at intervals along the circumference of the tracer 21, and reflective sheets are disposed on the first positioning plate, the second positioning plate, the third positioning plate and the fourth positioning plate. The positioning frame 212 adopting the structure has the advantages of simple structure and convenience in arrangement.

As shown in fig. 2 and 3, the tracer 21 further includes a connection frame 213, a lower end of the connection frame 213 is detachably connected to the operation lever 11, and a lower end of the positioning frame 212 is detachably connected to an upper end of the connection frame 213. With the above arrangement, the tracer 21 can be easily detached, so that the body 10 and the tracer 21 can be easily cleaned.

As shown in fig. 3, the tracer 21 further includes an upper limiting member 30, a lower limiting member 31 and a reset member 32, the lower end of the connecting frame 213 is provided with a plugging post 2131, the positioning frame 212 has a plugging hole 2121, a first limiting groove 2122 and a receiving groove, the plugging hole 2121 extends vertically, the lower limiting member 31 is movably disposed in the receiving groove along a lateral direction, an upper groove wall of the first limiting groove 2122 is located above the lower limiting member 31, the reset member 32 is located outside the lower limiting member 31 and is attached to the lower limiting member 31 to provide a restoring force for moving the lower limiting member 31 inwards, when the plugging post 2131 is plugged into the plugging hole 2121, the upper limiting member 30 is connected with the plugging post 2131, the upper limiting member 30 is plugged into the first limiting groove 2122 and is in limiting fit with an upper groove wall of the first limiting groove 2122, and the lower limiting member 31 is in limiting fit with the lower end of the plugging post 2131. With the above arrangement, when the tracer 21 is mounted, the lower end of the plug post 2131 can be limited by the lower limiting member 31, and the plug post can be limited upward by the upper limiting member 30, so that the plug post 2131 is stably fixed in the plug hole 2121.

Wherein, lower spacing piece 31 and restoring piece 32 are located the both sides of spliced pole 2131 respectively, utilize restoring force that restoring piece 32 provided, make lower spacing piece 31 can with the lower extreme spacing cooperation of spliced pole 2131.

It should be noted that, the upper limiting member 30 may be configured as a positioning pin movably along a lateral direction, and after the plug post 2131 is inserted into the plug hole 2121, the positioning pin is inserted into the plug post 2131 along the lateral direction so as to be connected to the plug post 2131.

The transverse direction and the vertical direction in this embodiment are directions in the corresponding drawings, and when the device is connected to the body 10, a direction perpendicular to the axis of the operating rod 11 is vertical, and a direction parallel to the axis of the operating rod 11 is transverse.

As shown in fig. 3 and 4, the restoring member 32 includes an elastic tube sleeved on the positioning frame 212, the elastic tube includes a connecting ring 321 and a plurality of elastic arms 322, the plurality of elastic arms 322 are disposed on the connecting ring 321 along the circumferential direction of the connecting ring 321 at intervals, the connecting ring 321 is located above the positioning frame 212, and the elastic arms 322 are attached to the lower limiting member 31 to provide restoring force. With the return member 32 having the above-described structure, the elastic arm 322 can provide the return force to the lower stopper 31.

In this embodiment, the connecting ring 321 may be connected to the positioning frame 212, so that the positioning frame 212 drives the elastic tube to move downward during assembly. Of course, the connecting ring 321 and the positioning frame 212 may be separated, and the positioning frame 212 is attached to the connecting ring 321 to drive the elastic tube to move downward.

In other embodiments, the return member 32 may be provided as a return spring with which the lower limiting member 31 is provided with a return force.

As shown in fig. 3, 5 and 6, the positioning frame 212 includes an outer sleeve 2123 and an inner sleeve 2124 connected to each other, a plurality of resilient arms 322 are disposed between the inner sleeve 2124 and the outer sleeve 2123, the lower stopper 31 includes balls, and a gap between the inner sleeve 2124 and the outer sleeve 2123 is smaller than a diameter of the balls. With the positioning frame 212 having the above structure, the balls can be accommodated by the inner sleeve 2124, and the balls can be limited by the outer sleeve 2123, so that the balls can be prevented from falling off the inner sleeve 2124.

The inner side of the inner sleeve 2124 is provided with a limiting cambered surface, and the ball can be limited by the limiting cambered surface so as to prevent the ball from falling off from the inner sleeve 2124.

In this embodiment, the accommodating groove and the first limiting groove 2122 are disposed on the inner sleeve 2124, and in order to facilitate processing of the accommodating groove and the first limiting groove 2122, the outer sleeve 2123 is provided with a process hole corresponding to the accommodating groove, and the shape of the process hole is the same as that of the accommodating groove. A process groove is also provided corresponding to the first limit groove 2122, and the shape of the process groove is the same as that of the first limit groove 2122.

As shown in fig. 5 and 6, the positioning frame 212 further has an avoidance groove 2125 and a connection groove 2126, which are communicated with the insertion hole 2121, the avoidance groove 2125 extends vertically, the connection groove 2126 extends transversely, the avoidance groove 2125 and the first limit groove 2122 are both communicated with the connection groove 2126 and are all arranged above the connection groove 2126, the upper limit piece 30 comprises a limit pin, and when the insertion post 2131 is inserted into the insertion hole 2121, the limit pin enters the first limit groove 2122 through the avoidance groove 2125 and the connection groove 2126. In the process that the spliced pole 2131 is inserted downwards into the spliced hole 2121, the upper limiting piece 30 can be avoided by utilizing the avoiding groove 2125, the avoiding groove 2125 and the first limiting groove 2122 can be communicated by utilizing the connecting groove 2126, the upper limiting piece 30 is driven to rotate by rotating the spliced pole 2131, and then the upper limiting piece 30 enters the first limiting groove 2122 through the connecting groove 2126 so as to form upper limiting on the spliced pole 2131.

When the upper stopper 30 is located in the connecting groove 2126, the plug post 2131 is located at an assembling position contacting with the lower stopper 31, and the plug post 2131 drives the lower stopper 31 to move toward a direction approaching to the elastic arm 322. With the above arrangement, when the upper stopper 30 is positioned in the connecting groove 2126, the lower stopper 31 can be moved to avoid the plug post 2131.

Specifically, when the tracer 21 is mounted, the upper stopper 30 is positioned in the escape groove 2125 and moved in the extending direction of the escape groove 2125 by the plug post 2131 being moved downward along the plug hole 2121. Meanwhile, the tracer 21 drives the connection ring 321 to move downwards, when the lower end of the plug post 2131 passes over the ball, the outer side of the ball contacts with the elastic arm 322, the elastic arm 322 is utilized to provide restoring force for the ball, and the inner side of the ball is extruded by the plug post 2131 and moves towards the elastic arm 322 so as to avoid the plug post 2131. When the upper stopper 30 moves to the connection groove 2126, the plug post 2131 is rotated to move the upper stopper 30 in the extending direction of the connection groove 2126. Then, by pulling up the plug post 2131, the upper limiting member 30 is moved from the connecting groove 2126 to the first limiting groove 2122 and along the extending direction of the first limiting groove 2122, and when the upper limiting member 30 contacts with the upper groove wall of the first limiting groove 2122, the ball moves towards the plug post 2131 under the action of the elastic force of the elastic arm 322 and is in limiting fit with the plug post 2131. When the tracer 21 needs to be disassembled, only reverse operation is needed.

In this embodiment, the lower end of the plug post 2131 is provided with a limiting slope, and after the tracer 21 is positioned, the ball is attached to the limiting slope to lower limit the plug post 2131.

As shown in fig. 10, the operation rod 11 includes a rod body 111, a bearing 116 and a sheath 112, the sheath 112 is sleeved on the outer periphery of the rod body 111, the outer ring of the bearing 116 is connected with the sheath 112, the inner ring of the bearing 116 is connected with the rod body 111, the power input end and the file connection end are both arranged on the rod body 111, the friction force between the rod body 111 and the sheath 112 can be reduced by using the bearing 116, and when the rod body 111 rotates relative to the sheath 112, the rod body 111 and the sheath 112 cannot be damaged.

In this embodiment, a limiting table is disposed at the end of the sheath 112, the tracer 21 is sleeved at the limiting table, and the axial position of the sheath 112 on the rod 111 can be limited by using the limiting table, so as to avoid movement of the tracer 21.

As shown in fig. 9, the lever body 111 is provided with a limiting hole 1111, the lever 11 further includes an elastic column 113, the elastic column 113 is located in the limiting hole 1111, and the elastic column 113 has a blocking position protruding out of the limiting hole 1111 and an avoiding position located in the limiting hole 1111. The sheath 112 can be restrained by the elastic posts 113 moving in the restraining holes 1111 to prevent the sheath 112 from moving.

As shown in fig. 7 and 8, the operating rod 11 is provided with a guide groove 114 and a second limiting groove 115 which are communicated, the guide groove 114 and the second limiting groove 115 extend along the length direction of the operating rod 11, the acetabular file further comprises a connecting sleeve 40, a spring 41 and a limiting sleeve 42, the connecting sleeve 40 and the limiting sleeve 42 are movably sleeved on the operating rod 11, two ends of the spring 41 are respectively connected with the connecting sleeve 40 and the limiting sleeve 42, the connecting sleeve 40 is provided with a connecting position and a loosening position, the limiting sleeve 42 is provided with a limiting column 421, when the connecting sleeve 40 is located at the connecting position, the connecting sleeve 40 is matched with the connecting end of the file to be connected with the file 12, the limiting column 421 is located in the second limiting groove 115, and when the connecting sleeve 40 moves from the connecting position to the loosening position, the connecting sleeve 40 is separated from the file 12, and the limiting column 421 moves from the second limiting groove 115 to the guide groove 114. With the above arrangement, when the file 12 is installed, the file 12 is fixed by being matched with the connecting sleeve 40 through the connection of the file connecting end, the limiting column 421 is moved to the second limiting groove 115 from the guide groove 114, the connecting sleeve 40 and the limiting sleeve 42 are spread by the elastic force of the spring 41, so as to provide a propping force for the limiting column 421, and the limiting column 421 can be located in the second limiting groove 115 to limit the limiting sleeve 42 and the connecting sleeve 40. When the file 12 is removed, the limiting sleeve 42 is only pressed, so that the limiting post 421 moves from the second limiting groove 115 to the guide groove 114, and the connecting sleeve 40 and the limiting sleeve 42 move along the axial direction of the operating rod 11.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An acetabular file, the acetabular file comprising:

the file comprises a body (10) and a file body, wherein the body comprises an operating rod (11) and a file (12), the operating rod (11) is provided with a power input end and a file connecting end which are oppositely arranged, and the file (12) is rotatably arranged at the file connecting end;

positioning assembly (20), including locator and tracer (21), tracer (21) set up on action bars (11), have a plurality of optics location portion (211) on tracer (21), the locator can receive a plurality of light that optics location portion (211) reflected is in order to fix a position tracer (21).

2. The acetabular file according to claim 1, wherein the optical positioning portion (211) is a reflector, the tracer (21) further comprising a positioning frame (212), a plurality of reflectors being arranged on the positioning frame (212) at intervals along a circumference of the positioning frame (212).

3. The acetabular file of claim 2, wherein the spacer (212) has a first spacer plate, a second spacer plate, a third spacer plate, and a fourth spacer plate, the first spacer plate, the second spacer plate, the third spacer plate, and the fourth spacer plate being disposed circumferentially spaced apart along the tracer (21), the first spacer plate, the second spacer plate, the third spacer plate, and the fourth spacer plate each having the retroreflective sheeting disposed thereon.

4. The acetabular file according to claim 2, wherein the tracer (21) further comprises a connecting frame (213), a lower end of the connecting frame (213) being detachably connected to the lever (11), and a lower end of the positioning frame (212) being detachably connected to an upper end of the connecting frame (213).

5. The acetabular file according to claim 4, wherein the tracer (21) further comprises an upper limit piece (30), a lower limit piece (31) and a reset piece (32), wherein the lower end of the connecting frame (213) is provided with a plug post (2131), the positioning frame (212) is provided with a plug hole (2121) communicated with the plug hole, a first limit groove (2122) and a containing groove, the plug hole (2121) extends vertically, the lower limit piece (31) is movably arranged in the containing groove along the transverse direction, the upper groove wall of the first limit groove (2122) is positioned above the lower limit piece (31), the reset piece (32) is positioned outside the lower limit piece (31) and is attached to the lower limit piece (31) to provide a restoring force for enabling the lower limit piece (31) to move inwards, and when the plug post (2131) is inserted into the plug hole (2121), the upper limit piece (30) is movably arranged in the containing groove, the upper limit piece (2121) is matched with the lower limit piece (2132), and the upper limit piece (2132) is matched with the lower limit piece (2132).

6. The acetabular file according to claim 5, wherein the restoring member (32) comprises an elastic tube sleeved on the positioning frame (212), the elastic tube comprises a connecting ring (321) and a plurality of elastic arms (322), the plurality of elastic arms (322) are arranged on the connecting ring (321) at intervals along the circumferential direction of the connecting ring (321), the connecting ring (321) is located above the positioning frame (212), and the elastic arms (322) are attached to the lower limiting member (31) to provide restoring force.

7. The acetabular file according to claim 6, wherein the spacer (212) comprises an outer sleeve (2123) and an inner sleeve (2124) connected, a plurality of the resilient arms (322) being located between the inner sleeve (2124) and the outer sleeve (2123), the lower limiter (31) comprising balls, a gap between the inner sleeve (2124) and the outer sleeve (2123) being smaller than a diameter of the balls.

8. The acetabular file according to claim 6, wherein the positioning frame (212) further comprises an avoidance groove (2125) and a connecting groove (2126) which are communicated with the insertion hole (2121), the avoidance groove (2125) extends vertically, the connecting groove (2126) extends transversely, the avoidance groove (2125) and the first limiting groove (2122) are communicated with the connecting groove (2126) and are arranged above the connecting groove (2126), the upper limiting piece (30) comprises a limiting pin, and when the insertion post (2131) is inserted into the insertion hole (2121), the limiting pin enters the first limiting groove (2122) through the avoidance groove (2125) and the connecting groove (2126).

9. The acetabular file according to claim 8, wherein the peg (2131) is in an assembled position in contact with the lower stop (31) when the upper stop (30) is in the connecting groove (2126), the peg (2131) driving the lower stop (31) toward a direction approaching the resilient arm (322).

10. The acetabular file of claim 1, wherein the acetabular file comprises a plurality of acetabular files,

the operating rod (11) comprises a rod body (111), a bearing (116) and a sheath (112), wherein the sheath (112) is sleeved on the periphery of the rod body (111), the outer ring of the bearing (116) is connected with the sheath (112), the inner ring of the bearing (116) is connected with the rod body (111), and the power input end and the file connecting end are both arranged on the rod body (111);

a limiting table is arranged at the end part of the sheath (112), and the tracer (21) is sleeved at the limiting table; and/or the number of the groups of groups,

be provided with spacing hole (1111) on body of rod (111), action bars (11) still include elastic column (113), elastic column (113) are located spacing hole (1111) are interior, elastic column (113) have the protrusion spacing hole (1111) block the position and be located dodge the position in spacing hole (1111).

11. The acetabular file according to claim 1, wherein the operating rod (11) is provided with a guide groove (114) and a second limiting groove (115) which are communicated, the guide groove (114) and the second limiting groove (115) extend along the length direction of the operating rod (11), the acetabular file further comprises a connecting sleeve (40), a spring (41) and a limiting sleeve (42), the connecting sleeve (40) and the limiting sleeve (42) are movably sleeved on the operating rod (11), two ends of the spring (41) are respectively connected with the connecting sleeve (40) and the limiting sleeve (42), the connecting sleeve (40) is provided with a connecting position and a loosening position, the limiting sleeve (42) is provided with a limiting post (421), when the connecting sleeve (40) is located at the connecting position, the connecting sleeve (40) is matched with the connecting end of the file to be connected with the connecting sleeve (12), the limiting post (421) is located in the second groove (115) and is connected with the connecting sleeve (12) when the connecting sleeve (40) is moved from the connecting sleeve (40) to the loosening position (114).