CN110269662B - bone removal tool - Google Patents
bone removal tool Download PDFInfo
- Publication number
- CN110269662B CN110269662B CN201910376007.6A CN201910376007A CN110269662B CN 110269662 B CN110269662 B CN 110269662B CN 201910376007 A CN201910376007 A CN 201910376007A CN 110269662 B CN110269662 B CN 110269662B
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- bone
- trepan
- positioning
- positioning structure
- limiting
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 129
- 241000425571 Trepanes Species 0.000 claims description 60
- 230000000670 limiting effect Effects 0.000 claims description 35
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000012634 fragment Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 210000001621 ilium bone Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000008558 Osteophyte Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010934 exostosis Diseases 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000002054 transplantation Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/14—Surgical saws
- A61B17/147—Surgical saws with circularly moving saw blades, i.e. non-reciprocating saw blades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/14—Surgical saws
- A61B17/15—Guides therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/062—Measuring instruments not otherwise provided for penetration depth
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Surgical Instruments (AREA)
Abstract
本发明提供了一种取骨工具，属于医疗器械技术领域，包括环锯和定位结构，环锯下端周向设有锯齿，周向旋转插入骨块并用于取骨，定位结构插接在环锯的内部，能在环锯内转动，用于插入骨块并定位所述环锯的取骨位置。本发明提供的取骨工具，通过定位结构可插入至骨块内并将环锯定位，环锯切块易操作，取出使被定位结构插入的骨块，具有对骨块取出简单，精确度高，易操作，实用性强，在取骨时不易打滑或滑脱，不影响取骨和手术质量的技术效果。
The invention provides a bone removal tool, belonging to the technical field of medical devices, comprising a trephine and a positioning structure. The lower end of the trephine is provided with serrations in the circumferential direction. , which can be rotated within the trephine for inserting bone fragments and locating the bone removal position of the trephine. The bone removal tool provided by the present invention can be inserted into the bone fragment and the trephine can be positioned through the positioning structure, the trephine cutting is easy to operate, the bone fragment inserted by the positioning structure can be removed, and the bone fragment removal is simple and accurate. , easy to operate, strong practicability, not easy to slip or slip during bone extraction, and does not affect the technical effect of bone extraction and operation quality.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a bone taking tool.
Background
The process of taking iliac bone for autogenous bone transplantation is frequently encountered in orthopedic surgery. Generally, when a bone is taken from an autologous bone, a bone knife is used for taking the bone from the iliac bone, and since the bone block is smooth in the outer part, the bone can slip and move when being taken, so that the bone cannot be accurately positioned, and the bone amount of the bone cannot be accurately controlled when the bone knife is used for taking the bone; and the bone defect at the skeletal bone position after bone extraction has poor healing effect due to irregular bone extraction. Therefore, there is a need for a bone grafting device which can keep the bone block still during bone grafting, has good positioning performance, can accurately guarantee the bone grafting amount, and has small damage to the bone supplying area, so as to facilitate bone grafting operation and improve the operation quality.
Disclosure of Invention
The invention aims to provide a bone taking tool, which aims to solve the technical problems that the bone taking operation is not easy by adopting a trepan, the trepan is easy to slip during bone taking, and the bone taking and operation quality are influenced in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a bone removal tool comprising
The trepan is used for taking bones and is a cylinder body with openings at two ends, a plurality of circles of sawteeth are circumferentially arranged at the lower end part, and bone blocks are circumferentially and rotatably inserted into the trepan;
the positioning structure is inserted into the trepan and can rotate in the trepan, and one end of the positioning structure is used for inserting a bone block and positioning a bone taking position of the trepan; the outer end of the positioning structure is provided with a connecting structure for pushing the positioning structure to advance;
the trepan and the positioning structure are detachably connected and can rotate relatively.
Further, the bone removal tool also comprises
And the limiting structure is arranged on the trepan and is used for limiting the operation length of the positioning structure.
Further, the limit structure comprises
The limiting groove is arranged at the top end of the trepan;
and the limiting clamping protrusion is arranged on the side part of the positioning structure and is movable in the limiting groove.
Further, the bone removal tool also comprises
The screwing handle is arranged on the trepan;
the cross section of the connecting structure is a regular hexagon and is used for being buckled with the handle.
Furthermore, the number of the saw teeth is 2-5, and the saw teeth are concentrically arranged.
Furthermore, the positioning structure comprises a cylindrical positioning rod and a positioning needle fixedly arranged at the end part of the positioning rod, and the positioning needle is used for inserting a bone block.
Further, the outer surface of the positioning needle is provided with threads.
Furthermore, a ruler is arranged on the outer circumferential surface of the upper end of the positioning structure and used for referring to the depth of the trepan inserted into the bone block.
Furthermore, the trepan and the positioning structure are both made of stainless steel.
The bone taking tool provided by the invention has the beneficial effects that: compared with the prior art, the bone taking tool has the advantages that the positioning structure is manually screwed to extend out of the outer side of the trepan, the end part of the positioning structure is inserted into the bone block to play a role of positioning the trepan, then the trepan is screwed to drill into the bone block, the bone block is taken out, the positioning structure is inserted into the bone block, the positioning is accurate, the trepan is easy to operate when the trepan is used for sawing the bone block, and the bone block inserted by the positioning structure is taken out; the technical problems that the operation is not good when the bone is taken by adopting the trepan, the trepan is easy to slip when the bone is taken, the bone taking and operation quality is influenced are solved, the bone block taking device has the advantages that the bone block taking is simple, the accuracy is high, the operation is easy, the practicability is high, the bone taking is not easy to slip or slip, and the technical effect of the bone taking and operation quality is not influenced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic cross-sectional view of a bone removal tool according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a use state of the bone removal tool according to the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals: 1. trepanning; 11. saw teeth; 12. a scale; 2. a positioning structure; 21. A positioning rod; 22. a positioning pin; 23. a connecting structure; 3. a limiting structure; 31. a limiting groove; 32. limiting clamping protrusions; 4. the handle is screwed.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, a bone harvesting tool according to an embodiment of the present invention will now be described. The bone taking tool comprises a trepan 1 and a positioning structure 2;
the trepan 1 is a cylinder body with openings at two ends, a plurality of circles of sawteeth 11 are circumferentially arranged at the lower end part, and the trepan is circumferentially and rotatably inserted into a bone block and used for taking a bone; the circular saw 1 is cylindrical, openings are formed in two ends of the circular saw 1, the saw teeth 11 are fixedly arranged at the end portion of the circular saw 1, the saw teeth 11 are circular, and the cutting directions of the multiple circles of saw teeth 11 are kept consistent;
the positioning structure 2 is inserted into the trepan 1 and can rotate in the trepan 1, and one end of the positioning structure 2 is used for inserting a bone block and positioning the bone taking position of the trepan 1; the outer end of the positioning structure 2 is provided with a connecting structure 23 for pushing the positioning structure 2 to advance; the connecting structure 23 is in an i shape; the bone block drilling tool is used for connecting tools which exert force on the positioning structure 2, such as a rotating handle, a wrench and the like, so that the positioning structure 2 can stably drill into a bone block, the positioning structure 2 is firstly contacted with the bone block to play a positioning role, then the trepan 1 is rotated, the trepan 1 advances into the bone block, and the bone block is taken out.
The trepan 1 and the positioning structure 2 are detachably connected and can rotate relatively. The positioning structure 2 can be taken out of the ring saw 1 and is detachably connected, and the positioning structure and the ring saw are kept rotating relatively in the using process.
Compared with the prior art, the bone taking tool provided by the embodiment of the invention has the advantages that the positioning structure 2 is manually screwed to extend out of the trepan 1, the end part of the positioning structure 2 is inserted into the bone block to play a positioning role, the trepan 1 is screwed to enable the trepan 1 to be drilled into the bone block, the bone block is taken out, the positioning structure 2 is inserted into the bone block, the positioning is accurate, the trepan 1 is easy to operate when sawing the bone block, and the bone block inserted by the positioning structure 2 is taken out; the technical problems that the operation is not good when the bone is taken by the trepan 1, the trepan 1 is easy to slip when the bone is taken, the quality of the taken bone and the operation is affected are solved, the bone block taking device has the advantages that the bone block taking device is simple to take out, the accuracy is high, the operation is easy, the practicability is high, the bone block taking device is not easy to slip or slip when the bone block is taken, and the quality of the taken bone and the operation is not affected.
The bone taking tool is applied to medical operations, particularly to surgical treatment of herniated intervertebral disc or osteophyte growing of patients and the like, when the bone taking tool is used, the positioning structure 2 is inserted into a bone block, then the trepan 1 is rotated to enable the trepan 1 to slowly enter the bone block, the bone block is cut into a cylindrical structure in the process of sawing the bone block by the trepan 1, and finally the bone block is broken off to leave a bone taking position and transplanted to a position needing operations. When the bone taking tool is used, the bone taking tool cannot slide or break away in the bone sawing engineering, the bone taking effect is good, and the positioning structure 2 plays a good positioning role.
As a specific implementation manner of the bone removal tool provided by the embodiment of the present invention, please refer to fig. 1, the bone removal tool further includes a limiting structure 3, which is disposed on the trepan 1 and is used for limiting the working length of the positioning structure 2. Limiting structure 3 has restricted location structure 2's operation length, has guaranteed that location structure 2 can carry out the operation at effectual operation within range, and location structure 2 stretches out the length of trepan 1 and has the restriction, or sets up limiting structure 3 gets bone length to satisfy and get the bone demand, and make trepan 1 not pierce through the bone piece, guarantee to get bone quality.
The limiting structure 3 comprises a limiting groove 31 and a limiting clamping protrusion 32,
the limiting groove 31 is arranged at the top end of the trepan 1; the limiting groove 31 is L-shaped and is fixedly arranged at the top of the trepan 1 and used for limiting the operation length of the positioning structure 2, namely limiting the movement amount of the positioning rod 21 in the trepan 1, so that the bone can be extracted within a reasonable range according to the bone extraction depth.
And the limiting clamping protrusion 32 is arranged on the side part of the positioning structure 2, and the limiting clamping protrusion 32 moves in the limiting groove 31. The upper end and the lower end of the limiting groove 31 can be contacted with the limiting clamping protrusions 32, and the limiting effect on the positioning structure 2 is achieved. When the positioning rod 21 moves up and down in the ring saw 1, the movable range of the positioning rod 21 in the ring saw 1 can be limited by the up-and-down connection of the limiting clamping protrusions 32 and the limiting grooves 31, so that the positions of the limiting clamping protrusions 32 on the positioning rod 21 can be set according to the bone taking depth.
Referring to fig. 1, the bone-removing tool according to an embodiment of the present invention further includes a screwing handle 4, which is made of an anti-slip material and is disposed on the trepan 1.
The cross section of the connecting structure 23 is a regular hexagon and is used for being buckled with the handle. A handle can be quickly mounted thereon, which can assist in the rotation of the positioning structure 2 during rotation of the positioning structure 2.
Referring to fig. 1, as a specific implementation manner of the bone-taking tool provided by the embodiment of the present invention, the number of turns of the saw teeth 11 is 2-5, and the saw teeth are concentrically arranged. The diameter of the teeth 11 of each turn is different. The diameter of the saw teeth is sequentially extended from the center of the ring saw 1, and the diameter of the saw teeth 11 is sequentially increased. The saw teeth 11 can function as a saw during the rotation of the ring saw 1.
Referring to fig. 1, the positioning structure 2 includes a cylindrical positioning rod 21 and a positioning pin 22 fixed at an end of the positioning rod 21, and the positioning pin 22 is used for inserting a bone block. The positioning pin 22 is in the shape of an inverted cone, and has a thread on its outer surface for rapidly drilling into a bone mass by screwing the positioning structure 2.
Referring to fig. 1, as a specific implementation manner of the bone removal tool provided by the embodiment of the present invention, the outer surface of the positioning pin 22 is provided with a thread for inserting into a bone block. When the positioning structure 2 is in the rotary drilling process, the end part of the positioning structure 2 can be inserted into the bone block through the arranged external thread.
Referring to fig. 1, a ruler 13 is further disposed on an outer circumference of an upper end of the positioning structure 2 for referencing a depth of the trepan 1 inserted into a bone block. From the reading of the scale 13, the distance of movement of the locating formation 2 within the trepan 1 can be seen, so that the depth to which the trepan 1 is inserted into a bone piece and removed therefrom can be determined.
Referring to fig. 1, as a specific implementation manner of the bone-taking tool provided by the embodiment of the present invention, the trepan 1 and the positioning structure 2 are both made of stainless steel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. Get bone instrument, its characterized in that: comprises that
The trepan is used for taking bones and is a cylinder body with openings at two ends, a plurality of circles of sawteeth are circumferentially arranged at the lower end part, and bone blocks are circumferentially and rotatably inserted into the trepan;
the positioning structure is inserted into the trepan and can rotate in the trepan, and one end of the positioning structure is used for inserting a bone block and positioning a bone taking position of the trepan; the outer end of the positioning structure is provided with a connecting structure for pushing the positioning structure to advance;
the trepan and the positioning structure are detachably connected and can rotate relatively;
the bone removal tool further comprises
The limiting structure is arranged on the trepan and used for limiting the operation length of the positioning structure;
the limiting structure comprises
The limiting groove is arranged at the top end of the trepan;
the limiting clamping protrusion is arranged on the side part of the positioning structure and moves in the limiting groove;
the positioning structure comprises a cylindrical positioning rod and a positioning needle fixedly arranged at the end part of the positioning rod, and the positioning needle is used for inserting a bone block;
the number of the saw teeth is 2-5, and the saw teeth are concentrically arranged;
the bone removal tool further comprises
The screwing handle is arranged on the trepan;
the cross section of the connecting structure is a regular hexagon and is used for being buckled with the handle;
the outer surface of the positioning needle is provided with threads.
2. The bone removal tool of claim 1, wherein: and the outer circumferential surface of the upper end of the positioning structure is provided with a scale for referring to the depth of the trepan inserted into the bone block.
3. The bone removal tool of claim 1, wherein: the trepan and the positioning structure are both made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376007.6A CN110269662B (en) | 2019-05-07 | 2019-05-07 | bone removal tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910376007.6A CN110269662B (en) | 2019-05-07 | 2019-05-07 | bone removal tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110269662A CN110269662A (en) | 2019-09-24 |
| CN110269662B true CN110269662B (en) | 2021-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910376007.6A Active CN110269662B (en) | 2019-05-07 | 2019-05-07 | bone removal tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN110269662B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111759365A (en) * | 2020-06-30 | 2020-10-13 | 广州中医药大学第一附属医院 | Foraminoplasty surgical instruments |
| CN112168277A (en) * | 2020-10-09 | 2021-01-05 | 杭州埃杜医疗科技有限公司 | Trepan with positioning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2857866Y (en) * | 2005-12-29 | 2007-01-17 | 侯庆忠 | Orthopaedic residual nail extractor |
| CN206526078U (en) * | 2016-09-18 | 2017-09-29 | 西安市红会医院 | A kind of minimally-invasive takes bone object |
| CN108814673A (en) * | 2018-04-03 | 2018-11-16 | 吕文德 | Limit deep osteotomy device and its intercept method |
| CN109044478A (en) * | 2018-08-30 | 2018-12-21 | 山东中医药大学 | A kind of anterior cervical decompression trepan that depth automatically controls |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2460052Y (en) * | 2001-01-16 | 2001-11-21 | 李庆涛 | Controllable cervical vertebrae trepan |
| CN204274557U (en) * | 2014-12-05 | 2015-04-22 | 胡军 | A kind of trepan for Thoracolumbar disk anterior decompression |
-
2019
- 2019-05-07 CN CN201910376007.6A patent/CN110269662B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2857866Y (en) * | 2005-12-29 | 2007-01-17 | 侯庆忠 | Orthopaedic residual nail extractor |
| CN206526078U (en) * | 2016-09-18 | 2017-09-29 | 西安市红会医院 | A kind of minimally-invasive takes bone object |
| CN108814673A (en) * | 2018-04-03 | 2018-11-16 | 吕文德 | Limit deep osteotomy device and its intercept method |
| CN109044478A (en) * | 2018-08-30 | 2018-12-21 | 山东中医药大学 | A kind of anterior cervical decompression trepan that depth automatically controls |
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| Publication number | Publication date |
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| CN110269662A (en) | 2019-09-24 |
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Effective date of registration: 20231207 Address after: 050051 No. 139 self-improvement Road, Hebei, Shijiazhuang Patentee after: THE THIRD HOSPITAL OF HEBEI MEDICAL University Address before: 050000 599 Qinling Mountains Avenue, Shijiazhuang high tech Zone, Hebei Patentee before: Zhang Wei |
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Effective date of registration: 20240827 Address after: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee after: BEIJING AK MEDICAL Co.,Ltd. Country or region after: China Address before: 050051 No. 139 self-improvement Road, Hebei, Shijiazhuang Patentee before: THE THIRD HOSPITAL OF HEBEI MEDICAL University Country or region before: China |