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CN-116650148-B - Bone marking piece and marking piece dismounting tool

CN116650148BCN 116650148 BCN116650148 BCN 116650148BCN-116650148-B

Abstract

The invention provides a bone marker and a marker dismounting tool, wherein the bone marker comprises an implant and an external connector which are connected into a whole, the external connector is fixedly arranged at one end of the implant and comprises a limiting part and a drawing stress part, the limiting part protrudes out of the peripheral wall of the implant and extends outwards along one end far away from the drawing stress part and relatively close to the implant, the external connector is provided with at least one far end far away from the implant, and one of the far ends is provided with an interface for being matched with a registration probe. The skeleton mark piece is including connecting integrative implantation piece and external connection piece, and the external connection piece sets firmly in the one end of implantation piece, including spacing portion and drawing atress portion, spacing portion protrusion in the peripheral wall of implantation piece to outwards extend along keeping away from the one end that draws atress portion relatively near implantation piece, the external connection piece has at least one distal end that deviates from implantation piece, one of distal end is equipped with the interface, and the interface is used for the cooperation registration probe.

Inventors

  • PAN BINGLEI
  • YU MIN
  • LI HANG

Assignees

  • 武汉联影智融医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20230414

Claims (12)

  1. 1. The marking piece disassembling tool is characterized by comprising a press fitting piece (40), a grabbing piece (50) and a control piece (60), wherein the press fitting piece (40) comprises a supporting end (41), the grabbing piece (50) is movably connected with the press fitting piece (40), and the grabbing piece (50) comprises a grabbing part (51); The control piece (60) is connected with the grabbing piece (50), and is provided with a first control position for driving the grabbing part (51) to be relatively close to the axis of the propping end (41) and a second control position for driving the grabbing part (51) to be relatively far away from the axis of the propping end (41); the press-fitting member (40) further includes a screw-fitting portion (42), an end portion of the screw-fitting portion (42) forming the abutment end (41); The marking piece disassembling tool further comprises a hand piece (90), and the hand piece (90) and the press fitting piece (40) are fixedly arranged relatively; the control piece (60) comprises a driving element (61), wherein the driving element (61) is movably connected with the grabbing piece (50) and is slidably arranged relative to the press-fitting piece (40) along a preset driving track.
  2. 2. The marking instrument according to claim 1, wherein the handling element (60) is in the first handling position with the gripping portion (51) facing the abutment end (41) at intervals and/or, When the control element (60) is in the first control position, the distance from the gripping portion (51) to the abutment end (41) in the axial direction of the abutment end (41) reaches a maximum value.
  3. 3. The marker-disassembly tool according to claim 1, wherein the drive element (61) is configured to be slidable close to a press-fit (40) to reach the second manipulation position, and to be slidable away from the press-fit (40) to reach the first manipulation position.
  4. 4. A marker attachment and detachment tool according to claim 3, characterized in that the handling member (60) further comprises a second elastic element (63), one end of the second elastic element (63) is connected to the driving element (61), the other end is connected to the press-fit member (40), and the second elastic element (63) has elastic potential energy for driving the driving element (61) to slide away from the second handling position and close to the first handling position.
  5. 5. The marking tool according to claim 3, further comprising a handling guide (80), wherein the press-fit member (40) is fixedly connected to one end of the handling guide (80), wherein the driving member (61) is slidably engaged with the handling guide (80) in a length direction of the handling guide (80), and/or wherein, The hand piece (90) is fixedly connected to the other end of the control guide piece (80), a pushing chute (91) penetrating through one end, close to the bone marker, of the hand piece (90) is formed in the hand piece (90), the driving element (61) comprises a triggering portion (611), and the triggering portion (611) is arranged in the pushing chute (91) and protrudes relative to the peripheral wall of the hand piece (90).
  6. 6. The tool according to claim 1, wherein the grip portion (51) is bent near the axial center of the holding end (41) to form a pulling force application portion (511), and/or, The number of the grabbing pieces (50) is multiple, the control pieces (60) are connected with multiple grabbing pieces (50), and the grabbing pieces (50) are distributed at intervals along the circumference of the abutting end (41).
  7. 7. The marker dismounting tool as set forth in claim 1, wherein the gripping member (50) is rotatably disposed on a peripheral side of the press-fitting member (40), the gripping member (50) further includes a manipulation force receiving portion (52), the manipulation force receiving portion (52) is integrally connected with the gripping portion (51), the manipulation force receiving portion (52) is connected to the manipulation control member (60), and the manipulation control member (60) is configured to be capable of driving the gripping member (50) to rotate relative to the press-fitting member (40) to change an angle between the gripping member (50) and the abutting end (41) in an axial direction.
  8. 8. The marking tool according to claim 7, wherein the grasping member (50) further comprises a hinge portion (53), the manipulation-receiving portion (52) and the grasping portion (51) are formed at both ends of the grasping member (50), respectively, the hinge portion (53) is located between both ends of the grasping member (50) and is rotatably connected to the press-fitting member (40), and/or, The control piece (60) comprises a first elastic element (62), one end of the first elastic element (62) is connected with the grabbing piece (50), the other end of the first elastic element is connected with the press fitting piece (40), and the first elastic element (62) has elastic potential energy which drives the grabbing portion (51) to rotate so as to be close to the axis of the abutting end (41).
  9. 9. The marker attaching and detaching tool according to claim 7, wherein the driving member (61) is slidably provided in an axial direction of the abutting end (41), the driving member (61) includes a driving inclined surface (6131), a distance between the driving inclined surface (6131) and an axial center of the abutting end (41) is in an increasing trend in a direction approaching the press-fit member (40), and the manipulation force receiving portion (52) is slidably abutted to the driving inclined surface (6131).
  10. 10. The marker attaching and detaching tool according to claim 1, wherein the screw fitting portion (42) further includes a screw edge that is located outside an axial center of the abutment end (41), and that extends in an axial direction of the abutment end (41).
  11. 11. The marker dismounting tool as claimed in claim 10, wherein the screw fitting portion (42) is a screw sleeve, the screw sleeve forming the abutment end (41) toward an end of the bone, and the screw sleeve having a screw fitting prismatic hole (421), the screw edge being an edge of an inner peripheral wall of the screw fitting prismatic hole (421).
  12. 12. The marker attaching and detaching tool according to claim 1, further comprising an external pressure receiving portion which is provided relatively fixedly with the press-fit member (40) in an axial direction of the abutting end (41).

Description

Bone marking piece and marking piece dismounting tool Technical Field The invention relates to the technical field of medical equipment, in particular to a bone marker and a marker dismounting tool. Background When the bone surgery robot is used for joint replacement surgery, a marking locating nail is used, an interface for adapting to a registration probe is arranged on the marking locating nail, and after the marking locating nail is implanted into bones, the registration probe is matched with the interface to assist the bone surgery robot in registering, so that the bone surgery robot tracks the positions of the bones, and the surgery accuracy is improved. The traditional mark locating nail is required to be drilled in advance on the implanted bone before being implanted into the bone, then the mark locating nail is inserted into the drilled hole, the traditional mark locating nail is undoubtedly required to be implanted into the bone, the operation is time-consuming, the operation efficiency is low, the difficulty of pulling out the mark locating nail after the operation is high, and the damage which is difficult to repair and compensate is easily caused to the bone. Disclosure of Invention In view of the above, the present invention provides a bone marker which can improve the problems of complex operation and difficult use of the marker nail after the operation when the marker nail is implanted into the bone, and the bone marker can be more easily implanted into the bone and more easily withdrawn from the bone, so as to improve the efficiency of the bone surgery. The invention provides a bone marker, which comprises an implant and an external connector, wherein the implant and the external connector are connected into a whole, the external connector is fixedly arranged at one end of the implant, the external connector comprises a limiting part and a drawing stress part, the limiting part protrudes out of the peripheral wall of the implant and extends outwards along one end far away from the drawing stress part and relatively close to the implant, the external connector is provided with at least one far end far away from the implant, and one of the far ends is provided with an interface for being matched with a registration probe. The bone marker provided by the invention has the following beneficial effects: 1) The distal end provides a force application part for applying a pushing force to the external connecting piece for the external dismounting tool, so that drilling holes are not needed on the bone before the bone marking piece is implanted into the bone, the pushing force can be applied to the distal end by using the external dismounting tool, so that the implantation piece is directly inserted into the bone to finish the implantation of the bone marking piece into the bone, the steps required for the implantation of the bone are reduced, and the efficiency and convenience of the bone marking piece for implantation of the bone are improved; 2) In the process that the implant is gradually inserted into the bone, the limiting part is gradually close to the bone until the limiting part is abutted against the bone, so that the maximum depth of the bone marker inserted into the bone is limited by the limiting part, meanwhile, the limiting part is abutted against the bone, so that the pulling stress part is positioned outside the bone, convenience is brought to the connection of the external dismounting tool and the pulling force applied to the pulling stress part, the external dismounting tool does not damage the bone when the external dismounting tool is used for pulling out the bone marker from the bone, the safety of an operation is improved, the pulling stress part is positioned outside the bone, the external dismounting tool is also easier to be connected with the pulling stress part, and the bone marker can be pulled out from the bone more quickly and more efficiently. In one embodiment, the pulling stress portion is fixedly arranged at one end of the limiting portion, which is relatively far away from the implant, and a holding space is arranged between one end of the pulling stress portion, which is relatively close to the implant, and the limiting portion, and the holding space is used for the external dismounting tool to extend in. So set up, stretch into and hold and get the space after outside assembly and disassembly tools, utilize outside assembly and disassembly tools to exert the pulling force to drawing the atress portion and can ensure to draw the atress portion and stably connect the contact with outside assembly and disassembly tools, hold and get the space and for confirming whether outside assembly and disassembly tools and drawing the atress portion and form reliable connection and be convenient, can avoid because of not confirming outside assembly and disassembly tools and drawing the reliable connection of atress portion, thereby when extracting the skeleton mark piece, unex