CN112336409B - Bone drilling cover fixing device - Google Patents

Bone drilling cover fixing device Download PDF

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Publication number
CN112336409B
CN112336409B CN201910726825.4A CN201910726825A CN112336409B CN 112336409 B CN112336409 B CN 112336409B CN 201910726825 A CN201910726825 A CN 201910726825A CN 112336409 B CN112336409 B CN 112336409B
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arm
combining
hole
bone
combining part
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CN112336409A (en
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黄孟锋
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Heshuo Biotech Co ltd
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Heshuo Biotech Co ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1695Trepans or craniotomes, i.e. specially adapted for drilling thin bones such as the skull
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/683Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/688Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin for reattaching pieces of the skull
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564Methods for bone or joint treatment

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Neurology (AREA)
  • Neurosurgery (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention provides a bone drilling hole cover fixing device, which comprises an upper packing part and a lower packing part, the upper packing piece comprises a first base part and a first combining part arranged on the first base part, the first combining part protrudes out of the bottom surface of the first base part so as to be capable of extending into the drill hole, the lower forcing piece comprises a second base part and a second combining part arranged on the second base part, the second base part comprises at least one first arm and at least one second arm with equal length, the length of the first arm and the second arm is larger than the radius of the drill hole, and the first arm and the second arm can be obliquely arranged at the bottom side of the drill hole and cross over the two ends, the second combining part can be combined with the first combining part, so that the movement generated by the clearance between the first combining part and the drill hole is not enough to separate any one of the first arm and the second arm from the bottom side edge of the drill hole, and the application range and the efficiency can be greatly improved.

Description

Bone drilling cover fixing device
Technical Field
The present invention relates to the technical field of bone drilling and capping fixing device, and more particularly, to a bone drilling and capping fixing device which can be used for drilling any portion of bone and for fixing skull bone, has a wide application range, can make the operation more rapid and simple, and can maintain the drilled hole at a minimum hole diameter to minimize the damage of the bone structure.
Background
The invention relates to a taiwan patent of taiwan publication No. I609670 entitled skull fixing device and surgical tool thereof, which is applied by the inventor in the early stage, wherein the skull fixing device mainly comprises a lower fastening member and a movable fastening member, and the movable fastening member is positioned on an outer sleeve to be spaced from the outer surface of the skull for facilitating the implantation and reduction of the skull.
Although the existing skull fixing device can achieve the effect of quite convenient and progressive clinical operation of fixing the skull, the lower forcing piece is of a circular structure, and the circular outer diameter of the lower forcing piece is larger than the inner diameter of the drill hole, so the lower forcing piece can only be used for fixing the original cut skull by returning the skull to the skull, and relatively aiming at a single drill hole which is only used for placing a monitor, a probe or a drainage tube for drainage drilling, the lower forcing piece cannot be inserted into the skull through the drill hole at all, so the lower forcing piece cannot be used for covering the drill hole, the drill hole needs to be covered by another object, and the invention cannot achieve the defect of universal effect of fixing the skull or covering the drill hole. Furthermore, for example, in bone grafting, a hole must be drilled in bones such as femur, hand bone, foot bone or sternum at other parts of the human body; or the surgical instrument must be inserted into the adjacent bone to perform the surgical operation, and the bone to be inserted is drilled with a drill hole. The lower tightening of the invention can not be inserted into the single drilling hole, so the invention can not be applied to the covering of the single drilling hole of the skeleton, and if the drilling holes are not covered with the hollow-out structure, the soft and hard tissues are easy to fill and influence the normal bone hyperplasia, besides, the drilling holes are easy to be damaged when being touched by external force under the protection of the uncovered structure, thus being the problem to be solved urgently in the medical field at present.
Disclosure of Invention
Accordingly, the present inventors have made extensive studies and have conducted many experiments and improvements to develop the present invention which can solve the above problems and has high practical utility.
The invention provides a bone drilling cover fixing device, which is characterized by comprising:
the upper packing piece comprises a first base part and a first combining part, the first combining part is arranged on the first base part and protrudes out of the bottom surface of the first base part, and the diameter of the first combining part is smaller than that of the drilled hole; and
the lower forcing piece comprises a second base part and a second combining part, the second base part comprises at least one first arm and at least one second arm which are equal in length, the second combining part is arranged on the second base part, the length of the first arm and the length of the second arm are both larger than the radius of the drill hole and can be obliquely placed into the bottom side of the drill hole to cross over the two ends, the second combining part can be combined with the first combining part, and the movement caused by the clearance between the first combining part and the drill hole is not enough to enable any one of the first arm and the second arm to be separated from the two ends of the bottom side of the drill hole.
And the second base is sheet-shaped and has a width smaller than the diameter of the drilled hole.
The first combining part and the second combining part form a screw hole and a stud for screw thread connection.
The first combination part is provided with a concave part which is opened upwards to form a lantern ring, the concave part is provided with a screw cap in a matching way, the second combination part is a screw bolt which can be screwed with the screw cap, the upper edge of the concave part is provided with a buckle groove with smaller inner diameter, the outer peripheral surface of the screw cap is convexly provided with a convex ring with outer diameter larger than the buckle groove, so that the screw cap can only axially rotate in the concave part and can not be separated from the concave part, the upper end of the screw cap is provided with a first positioning part for combining a surgical tool, and the screw bolt is internally provided with an internal thread hole for combining the surgical tool.
On the bearing, the second combining part is provided with an external tangent plane corresponding to the first arm or the second arm.
On the bearing, the second combining portion has a plurality of external cutting surfaces.
The first arm and the second arm are separate elements and form a movable pivot assembly connection with a folding and unfolding function.
The first arm is formed by extending the second combining part, and the second arm is provided with a sleeve part for being pivoted and sleeved on the second combining part and taking the second combining part as a pivot for expansion and contraction.
The center of the second base is set to be larger in thickness.
The first combining part is a buckle hole, the second combining part is a slender belt piece, and the belt piece is provided with a clamping part for buckling and positioning the buckle hole.
The bone drilling hole cover fixing device provided by the invention can easily and obliquely insert and position the first arm and the second arm in the bottom end of the drilling hole by virtue of the design that the first arm and the second arm are arranged in equal length and are slightly larger than the radius of the drilling hole as long as the second tightening piece is obliquely inserted towards the drilling hole, so that the aim of covering and using the drilling hole of the bone at any part can be fulfilled, the operation is very rapid and simple, the drilling hole can be maintained at the minimum aperture to minimize the damage to the bone structure, and when the skull is fixed for use, the first arm and the second arm can be utilized to respectively stretch across the top skull and the skull, so that the application range and the efficiency are effectively improved, and the defects of the background technology are overcome.
To further clarify the structure, features and other objects of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Drawings
Fig. 1 is a schematic perspective exploded view of the present invention.
Fig. 2 is a bottom exploded perspective view of the present invention.
FIG. 3 is a schematic cross-sectional view of a lower urging member of the present invention.
FIG. 4 is a cross-sectional view of a single burr in bone in accordance with the present invention.
Fig. 5 is a schematic sectional view taken along line a-a of fig. 4.
Fig. 6 is a perspective view of the present invention in combination with a surgical tool.
FIG. 7 is a schematic diagram of the oblique placement of the lower forcing member of the present invention into a borehole.
FIG. 8 is a schematic diagram of the first and second arms of the present invention crossing the bottom side of the borehole.
FIG. 9 is a schematic view showing the operation of the present invention in withdrawing the surgical tool after the surgical tool is used to couple the upper and lower urging members to the clamping cap in the drill hole.
FIG. 10 is a schematic representation of the action of the present invention implemented in a burr hole for use in securing a skull bone.
Fig. 11 shows a second embodiment of the second joint according to the present invention.
Figure 12 is a second embodiment of the second base of the present invention.
Figure 13 is a third embodiment of the second base of the present invention.
Figure 14 is a top view of a fourth embodiment of the second base of the present invention.
Fig. 15 is an enlarged sectional view of fig. 14.
Figure 16 is a fifth embodiment of the second base of the present invention.
Fig. 17 shows a second coupling mode of the first coupling part and the second coupling part according to the present invention.
Fig. 18 shows a third coupling mode of the first coupling part and the second coupling part according to the present invention.
Fig. 19 shows a fourth coupling mode of the first coupling part and the second coupling part according to the present invention.
Fig. 20 is a partial cross-sectional schematic view of fig. 18.
Fig. 21 shows a fifth coupling mode of the first coupling part and the second coupling part according to the present invention.
Description of reference numerals: a, a skeleton drilling cover fixing device; 30, an upper packing piece; 31 a first base; 311 slots; 312 petals; 313 gaps; 314 is opened; 315 a limiting hole; 32. 32A, 32B, 32C, 32D first coupling portions; 321 a buckle groove; 322 recess portion; 323 perforating; 325 clamping part; 33 a nut; 41 a convex ring; 42 a first positioning portion; 50 lower urging members; 51 a second base; 511 a first arm; 512 a second arm; 5121 a sleeve part; 52. 52A, 52B, 52C, 52D; 521, external section; 522 an engaging part; 53 an internally threaded bore; 531 through holes; 60 an outer sleeve; 70 skull bone; 72 a skull bone; 73, drilling holes; B. c, surgical tools; the Z-center line.
Detailed Description
Referring to fig. 1 to 10, a bone drilling cap fixture a according to the present invention is shown to comprise an upper packing 30 and a lower packing 50, wherein:
the upper fastening member 30 includes a first base portion 31 and a first coupling portion 32 disposed at the center of the first base portion 31. The first base 31 is in the shape of a plate or a disk, and a plurality of slots 311 extending to the periphery and being open are arranged at intervals on the outer periphery of the disk, so that a plurality of petals 312 are respectively formed between the adjacent slots 311, and the thickness of the plurality of petals 312 is gradually thinned and knotted towards the outer periphery, so that the petals can be easily embedded into the skull 70 for firm clamping. The first coupling portion 32 protrudes from the bottom surface of the first base portion 31 and has a diameter D2 slightly smaller than the diameter D1 of the bore 73 so as to be received in the bore 73. The first combining portion 32 is provided with a concave portion 322 opening upward to form a collar shape, the bottom surface has a through hole 323 penetrating to the concave portion 322, the concave portion 322 is provided with a nut 33 in a matching way, and the upper edge of the concave portion 322 is provided with a fastening groove 321 with a smaller inner diameter. The nut 33 is provided with a first positioning portion 42 around the upper end of the nut 33 for the surgical tool B to engage with, preferably, the first positioning portion 42 is formed in a concave-convex shape around the upper end of the nut 33 or at least two concave hole structures (not shown) are formed in the upper end surface of the nut 33, and a convex ring 41 with an outer diameter larger than the fastening groove 321 is protruded from the lower edge of the outer peripheral surface of the nut 33, so that the nut 33 can only axially rotate in the concave portion 322 without disengaging from the concave portion 322.
The lower fastening member 50 includes a second base 51 having a plate shape and a width smaller than the diameter D1 of the bore 73 and a second engaging portion 52 disposed at the center of the second base 51, the second engaging portion 52 is a stud capable of being screwed with the nut 33, and has an internal threaded hole 53 for engaging with the surgical tool B, and an external tangent surface 521 disposed at a side surface thereof, the external tangent surface 521 is located corresponding to one of the first arm 511 or the second arm 512, so as to improve the ease of inserting the lower fastening member 50 into the bore 73. The second base 51 includes a first arm 511 and a second arm 512, the first arm 511 and the second arm 512 are arranged in a straight line with the center line Z of the second coupling portion 52 (stud) as the center, and the length X of the first arm 511 and the length Y of the second arm 512 are both greater than the radius R1 of the bore 73, so that the lower fastening member 50 can be obliquely placed on the bottom side of the bore 73 to cross over the two ends during the operation, and when the second coupling portion 52 and the coupling portion 32 are coupled to each other to be positioned, the movement caused by the clearance between the first coupling portion 32 and the bore 73 is not enough to separate any one of the first arm 511 and the second arm 512 from the two ends of the bottom side of the bore 73.
Please refer to fig. 4-9, which are schematic views illustrating the operation of covering the bone drilling hole according to the present invention (the connection structure and operation method of the present invention and the surgical tool B are the same as the taiwan patent publication No. I609670 developed and created by the present inventor, and will not be described again here). Firstly, the bone drilling cover fixing device a of the present invention is connected and positioned with the operation tool B to form an integrated assembly (as shown in fig. 6), since the second base 51 of the lower fastening member 50 of the present invention is a sheet with a suitable width, and the first arm 511 and the second arm 512 have equal length and are respectively slightly larger than the radius R1 of the drilling hole 73, so that the first arm 511 and the second arm 512 can be smoothly and quickly placed on the bottom side of the drilling hole 73 (as shown in fig. 7) by only taking the integrated assembly obliquely to insert the lower fastening member 50 obliquely toward the drilling hole 73, so as to cross two opposite sides of the drilling hole 73 (as shown in fig. 8), and then the operation tool B drives the upper fastening member 30 to move downward, so that when the nut 33 is screwed with the second fastening portion 52 (stud) of the lower fastening member 50, the nut 33 can synchronously drive the upper fastening member 30 to move downward to match the first arm 511 and the second arm 512 of the lower fastening member 50 to be fastened and positioned, meanwhile, the upper packing member 30 can cover the bore 73 and finally draw out the surgical tool B, i.e. the covering of the bore 73 is completed (as shown in fig. 4 and 9), which is very convenient and fast in operation.
The above description is directed to the embodiment of the present invention using a single burr hole, but the present invention is also applicable to any part of the bone, and not limited thereto.
Fig. 10 is a schematic view showing the operation of the present invention applied to fixing skull bone (the connection structure and operation method of the present invention and the surgical tool B are the same as those of the patent No. I609670 issued by the inventor of taiwan, which is not described herein again). Firstly, the bone drilling and capping fixing device a of the present invention is also connected and positioned with the surgical tool B to form an integral assembly, so that when the bone drilling and capping fixing device a and the surgical tool B are simultaneously implanted into the position of the drill hole 73 of the skull 70, the second base 51 of the lower fastening member 50 of the present invention has the first arm 511 and the second arm 512 which are equally arranged, and can respectively cross over the top trigger skull 72 and the bottom of the skull 70, and then the surgical tool B drives the upper fastening member 30 to move downwards, so that the nut 33 and the second combining portion 52 (stud) are screwed downwards, and the first arm 511 and the second arm 512 which tightly fasten the upper fastening member 30 and the lower fastening member 50 can be driven to generate clamping force, so as to effectively clamp and fix the skull 72 on the skull 70, and the operation is very convenient and fast.
Referring to fig. 11, a second embodiment of the second engaging portion 52 of the present invention is shown, wherein two outer tangent planes 521 are disposed on two opposite sides of the second engaging portion 52 of the lower fastening member 50, so as to improve the ease of inserting the lower fastening member 50 into the bore 73 and facilitate the operation. Of course, in the present invention, the number of the circumscribed surfaces 521 may be 3, 4, … …, etc., which will not be described herein.
Please refer to fig. 12 and 13, which illustrate a second and a third embodiments of the second base 51 of the present invention, wherein the first arm 511 and the second arm 512 of the second base 51 of the lower fastening member 50 are connected at different angles and form a Y-shape connection with the center line Z of the second connecting portion 52 (stud). In the present invention, the number of the first arm 511 and the second arm 512 can be plural.
Please refer to fig. 14 and 15, which illustrate a fourth embodiment of the second base 51 according to the present invention, wherein the first arm 511 and the second arm 512 are separate components, that is, the first arm 511 is formed by extending the second coupling portion 52 (stud), and the second arm 512 has a sleeve portion 5121 for pivotally sleeving the second coupling portion 52 (stud), and the second coupling portion 52 (stud) is used for pivotally extending and retracting. In this embodiment, the second arm 512 can also be plural.
Referring to fig. 16, a fifth embodiment of the second base 51 of the present invention is shown, wherein it is indicated that the center of the second base 51 (i.e. the root of the first arm 511 and the second arm 512) is set to be thicker, so as to not only disperse the upward pulling force of the second connecting portion 52, but also greatly increase the structural strength.
The bone drilling cover fixing device A is suitable for covering the drilling hole 73 of any part of bone or fixing the skull 72, and after being tightly clamped, the surgical tool B can be quickly taken out from the bone drilling cover fixing device A only by moving the outer sleeve 60 of the surgical tool B upwards and reversely rotating the same as the prior art; on the contrary, if the bone drilling cap fixture A or the skull bone 72 is to be removed, the bone drilling cap fixture A can be removed from the skull bone (bone) 70 only by the reverse operation, and the present invention is very quick and convenient in both implantation and removal operations.
Fig. 17 shows a second combination manner of the first combination portion and the second combination portion of the present invention, wherein the collar and the nut 33 of the first combination portion 32A are merely sleeved, and the second combination portion 52A is a stud.
Please refer to fig. 18, which shows a third combination manner of the first combination portion and the second combination portion of the present invention, wherein the first combination portion 32B and the second combination portion 52B respectively form a combination manner of an inner screw hole and a stud.
Please refer to fig. 19 and 20, which show a fourth combination manner of the first combination portion and the second combination portion of the present invention, which is a manner of combining a binding band, wherein a buckle hole having an elastic fastening portion 325 therein is formed at the first combination portion 32C, and the second combination portion 52C forms a long strip-shaped sheet-shaped band piece having a suitable length, and at least one side of the band piece is provided with a ratchet-shaped fastening portion 522 for fastening the fastening portion 325; after the belt member is inserted into the fastening hole, a surgical tool C is used to drive the upper tightening member 30 to move toward the tightening member 50 for tightening and fixing the hole.
Please refer to fig. 21, which shows a fifth combination manner of the first combination portion and the second combination portion of the present invention, which is another manner of combining the binding belt, wherein the first combination portion 32D forms a fastening hole with a tapered shape, the upper portion of which is smaller than the lower portion of which is larger than the lower portion of which, the second combination portion 52D is a slender rod-shaped belt member, and a plurality of convex tapered engaging portions 522 capable of fastening the tapered fastening hole are protruded on the slender rod at intervals; after the belt member is inserted into the fastening hole, a surgical tool C is used to drive the upper tightening member 30 to move toward the tightening member 50 for tightening and fixing the hole.
Compared with other prior art, the bone drilling cover fixing device A provided by the invention has the following advantages:
1. the lower fastening member 50 of the present invention is configured by the first arm 511 and the second arm 512 to have equal length and both being slightly larger than the radius of the bore 73 and having a width smaller than the diameter of the bore 73, so that the first arm 511 and the second arm 512 can be easily inserted and positioned in the bottom end of the bore 73 by inserting the lower fastening member 50 obliquely toward the bore 73, thereby achieving the purpose of covering the bore 73 of any bone, and the operation is very quick and simple, and the bore 73 can be maintained at the minimum aperture to minimize the damage to the bone structure.
2. When the skull drill is used for fixing the skull, the first arm 511 and the second arm 512 which are arranged in equal length can respectively cross the top-pulling skull 72 and the skull 70 for being tightly clamped, so that the purpose that the skull drill or any bone drill for fixing the skull can be realized, and the application range and the efficiency can be effectively improved.
3. The second engaging portion 52 of the lower fastening member 50 of the present invention may have one or two external tangent planes 521 corresponding to the side of the first arm 511 or the second arm 512, so as to improve the ease of inserting the lower fastening member 50 into the bore 73 and the convenience of operation.
4. The present invention not only has the excellent effect progress, but also maintains various effects of the background technology, and the functional benefit is more enhanced and more advanced compared with the present invention.
The device of the invention can be used for drilling any part of bone to be covered, and is relatively suitable for fixing skull, and can be used for drilling or fixing skull, and the device is simple and quick to operate, is tightly clamped and firm, effectively achieves the practicability of improving the application range and efficiency, and is a high innovation in technical concept.

Claims (7)

1. A bone drill cap fixation device, comprising:
the upper packing piece comprises a first base part and a first combining part, the first combining part is arranged on the first base part and protrudes out of the bottom surface of the first base part, and the diameter of the first combining part is smaller than that of the drilled hole; and
the lower urging piece comprises a second base part and a second combining part, wherein the second base part comprises at least one first arm and at least one second arm which are equal in length, the second combining part is arranged on the second base part, the lengths of the first arm and the second arm are both larger than the radius of the drill hole, the first arm is formed by extending the second combining part, the second arm is provided with a sleeve part for being sleeved on the second combining part in a pivot mode and being unfolded and folded by taking the second combining part as a pivot, the first arm and the second arm are separated elements and form movable pivot group connection with unfolding and folding functions, the movable pivot group connection can be obliquely arranged to the bottom side of the drill hole and cross over two ends, the second combining part can be combined with the first combining part, and the movement caused by the clearance between the first combining part and the drill hole is not enough to enable any one of the first arm and the second arm to be separated from two ends of the bottom side of the drill hole.
2. The bone broach fixture according to claim 1, wherein: the second base is plate-like and has a width smaller than the diameter of the bore.
3. The bone broach fixture according to claim 1, wherein: the first combining part and the second combining part form a screw hole and a stud for screw connection.
4. The bone broach fixture according to claim 1, wherein: the first combination part is provided with a concave part which is opened upwards to form a lantern ring, the concave part is provided with a screw cap in a matching way, the second combination part is a screw bolt which can be screwed with the screw cap, the upper edge of the concave part is provided with a buckle groove, the lower edge of the outer peripheral surface of the screw cap is convexly provided with a convex ring with the outer diameter larger than the inner diameter of the buckle groove, so that the screw cap can only axially rotate in the concave part and can not be separated from the concave part, the upper end of the screw cap is provided with a first positioning part for combining an operation tool, and the inner part of the screw bolt is provided with an inner threaded hole for combining the operation tool.
5. The bone broach fixture according to claim 1, wherein: the second combining part is provided with an external tangent plane corresponding to the first arm or the second arm.
6. The bone broach fixture according to claim 1, wherein: the second combining portion has a plurality of external cutting surfaces.
7. The bone broach fixture according to claim 1, wherein: the first combining part is a buckle hole, the second combining part is a slender belt piece, and the belt piece is provided with a clamping part for buckling and positioning the buckle hole.
CN201910726825.4A 2019-08-07 2019-08-07 Bone drilling cover fixing device Active CN112336409B (en)

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CN112336409B true CN112336409B (en) 2022-04-08

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Publication number Priority date Publication date Assignee Title
CN1399531A (en) * 1999-10-27 2003-02-26 阿特里泰克公司 Barrier device for ostium of left atrial appendage
CN101410063A (en) * 2006-02-03 2009-04-15 詹姆斯·E·科尔曼 Wound closure devices
CN104736084A (en) * 2012-03-12 2015-06-24 诺普兰公司 Device for fixing a cranial limb to the cranial crown to be placed in the craniotomial hole or cutting, dedicated applying device and process for its use
CN105055011A (en) * 2015-07-29 2015-11-18 胡晓予 Skull flap restoration fixing clamp
CN108720917A (en) * 2017-04-18 2018-11-02 合硕生技股份有限公司 Skull bone anchoring device and its operation tool

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