CN113425366A - Circular saw cylinder bone extractor - Google Patents
Circular saw cylinder bone extractor Download PDFInfo
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- CN113425366A CN113425366A CN202110857400.4A CN202110857400A CN113425366A CN 113425366 A CN113425366 A CN 113425366A CN 202110857400 A CN202110857400 A CN 202110857400A CN 113425366 A CN113425366 A CN 113425366A
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- bone
- hollow cylinder
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/15—Guides therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/14—Surgical saws ; Accessories therefor
- A61B17/147—Surgical saws ; Accessories therefor 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, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1635—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for grafts, harvesting or transplants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1703—Guides or aligning means for drills, mills, pins or wires using imaging means, e.g. by X-rays
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Transplantation (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to the field of orthopedic equipment, in particular to a trepan cylinder bone extractor which comprises a trepan, a hollow cylinder, a hollow hexagonal prism, a depth-limiting cylinder and a clamping hoop, wherein one end of the hollow cylinder is in an open state, the other end of the hollow cylinder is in a closed state, the trepan is integrally arranged on the outer edge of the open end of the hollow cylinder, the hollow hexagonal prism is fixedly arranged at the axis position of the closed end of the hollow cylinder, the diameter of the depth-limiting cylinder is slightly smaller than the inner diameter of the hollow cylinder, a guide needle pinhole is arranged at the axis position of the depth-limiting cylinder, open slots which are symmetrically distributed are arranged on two sides of the hollow cylinder and the trepan, an external thread is arranged on one side of the surface of the hollow cylinder, which is close to the hollow hexagonal prism, and the clamping hoop is arranged through the external thread; fix a position under the C arm machine, after the limit is dark, use this annular to get bone ware and carry out the cutting of bone tissue, then press from both sides tight bone column from the rear side and once only take out monoblock bone tissue, avoid causing secondary wound, reduce operation work load.
Description
Technical Field
The invention relates to the field of orthopedic equipment, in particular to a circular saw cylinder bone extractor.
Background
In clinical orthopedics work, bone chisels, osteotomes and the like are often used for windowing cortical bone for deeper bone lesions, and the cortical bone and nearby cancellous bone are removed, so that the cortical bone can reach the lesions and the lesions are treated. When autologous bone grafting is required, bone grafting is performed on the bone grafting area by using an osteotome, an osteotome and the like.
However, the use of osteotomes, osteotomes for operation, introduces two uncertainties: 1. the position cannot be accurately controlled, and the deviation of the opening is easy to occur during the chiseling; 2. depth cannot be precisely controlled, too deep may result in damage to other tissues, and too shallow, in turn, additional bone loss occurs as it deepens. There are also two disadvantages: 1. the operation of drilling bone can cause a great deal of cortical and cancellous bone to be lost in the junction area; 2. violent osteotomy operations risk causing fractures of the surrounding bone.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a trepan cylinder bone extractor.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a bone ware is got to trepan drum, includes trepan, cavity drum, cavity hexagonal prism, the one end of cavity drum is the open mode, and the other end is airtight state, just the trepan integration set up in the outer edge of cavity drum open end, cavity hexagonal prism fixed mounting in the axle center position of the airtight end of cavity drum.
Furthermore, the depth limiting cylinder is further included, the diameter of the depth limiting cylinder is slightly smaller than the inner diameter of the hollow cylinder, and a guide needle hole is formed in the axis position of the depth limiting cylinder.
Furthermore, open slots which are symmetrically distributed are formed in the two sides of the hollow cylinder and the two sides of the trepan, external threads are arranged on one side, close to the hollow hexagonal prism, of the surface of the hollow cylinder, and a clamping hoop is installed through the external threads.
Further, the specific use steps of the bone extractor are as follows:
s1: firstly, performing fluoroscopy through a C-arm machine, and determining a bone taking position and depth by using a guide needle;
s2: determining the diameter of a bone, selecting a matched annular bone taking device, and loading a hollow hexagonal prism at the tail part onto a hollow electric drill;
s3: determining the length of the selected depth limiting cylinder according to the depth of the target bone taking;
s4: putting the depth-limiting cylindrical guiding needle attached to the cortical bone, inserting the annular bone taking device along the guiding needle, and wrapping the depth-limiting cylindrical guiding needle to enable the end of the annular bone taking device to be connected with the saw part closely attached to the cortical bone;
s5: starting the electric drill to drive the hollow cylinder and the trepan to rotate, so that the trepan and the hollow cylinder are drilled into the bone until the depth limiting cylinder abuts against the inner side surface of the closed end of the hollow cylinder to limit;
s6: stopping rotating when the drill bit can not go deep; separating the drill from the hollow hexagonal prism;
s7: the clamping hoop is screwed on from the tail part of the hollow cylinder along the external thread, so that the upper part and the lower part of the hollow cylinder which are symmetrically distributed along the open slot clamp the bone column which is sawn down, and finally the bone column and the guide needle are taken out.
The invention has the beneficial effects that:
(1) the trepan cylinder bone extractor can be used by matching the depth limiting cylinder with the Kirschner wire, and can accurately position the position of the bone to be extracted and determine the depth through the guidance of the Kirschner wire.
(2) According to the trepan cylinder bone extractor disclosed by the invention, the depth of bone extraction can be limited by selecting depth limiting cylinders with different depths, so that the depth of bone extraction can be accurately controlled, and other tissues are prevented from being damaged during bone extraction.
(3) According to the trepan circular saw cylinder bone extractor, the size of the bone tissue to be extracted is adjusted by selecting the trepan circular saw hollow cylinders with different diameters, and the bone extraction accuracy can be improved.
(4) The trepan cylinder bone extractor provided by the invention is connected with cutting and extracting, relatively complete bone tissues are extracted at one time, and secondary damage is avoided.
(5) According to the trepan cylinder bone extractor disclosed by the invention, as the bone blocks are sawed out in a circular manner, the bone loss can be reduced, the formed cylindrical cavity has stronger mechanical stability (the circular arch structure can uniformly disperse stress and has better stability), and the possibility of damage to peripheral bone tissues and fracture can be reduced to the greatest extent by matching with circular cutting.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of a circular saw cylinder bone extractor according to a preferred embodiment of the present invention;
in the figure: 1. trepanning; 2. a hollow cylinder; 3. a clampband; 4. a hollow hexagonal prism; 5. a depth limiting cylinder.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1, the trephine cylinder bone extractor provided by the invention comprises a trephine 1, a hollow cylinder 2 and a hollow hexagonal prism 4, wherein one end of the hollow cylinder 2 is in an open state, the other end of the hollow cylinder 2 is in a closed state, the trephine 1 is integrally arranged on the outer edge of the open end of the hollow cylinder 2, and the hollow hexagonal prism 4 is fixedly arranged at the axial center position of the closed end of the hollow cylinder 2.
The bone-taking instrument further comprises a depth-limiting cylinder 5, the diameter of the depth-limiting cylinder 5 is slightly smaller than the inner diameter of the hollow cylinder 2, a guide needle hole is formed in the axis position of the depth-limiting cylinder 5, the depth-limiting cylinder 5 can be used in cooperation with a Kirschner wire, the position of a bone to be taken can be accurately positioned through the Kirschner wire, and the depth is determined; the depth of bone taking can be limited by selecting depth limiting cylinders 5 with different depths, so that the depth of bone taking can be accurately controlled, and other tissues are prevented from being damaged when the bone is taken.
The utility model discloses a bone column cutting device, including cavity drum 2, fretsaw 1, the both sides of cavity drum 2 are provided with symmetric distribution's open slot, one side that 2 surfaces of cavity drum are close to cavity hexagonal prism 4 is provided with the external screw thread to install clamp hoop 3 through the external screw thread, can be after cutting the bone column, press from both sides the bone column tightly through clamp hoop 3 cooperation cavity drum 2, thereby conveniently take out the bone column along with cavity drum 2 together, make the cutting with take out the linking, once only take out comparatively complete bone tissue, avoid secondary damage.
The bone extractor comprises the following specific use steps:
s1: firstly, performing fluoroscopy through a C-arm machine, and determining a bone taking position and depth by using a guide needle;
s2: the diameter of a bone is determined, a matched annular bone taking device is selected, and the hollow hexagonal prism 4 at the tail part is loaded on a hollow electric drill;
s3: determining the length of the selected depth limiting cylinder 5 according to the depth of the target bone taking;
s4: putting the depth-limiting cylinder 5 along with the guiding needle to be attached to the cortical bone, inserting the annular bone taking device along with the guiding needle, and wrapping the depth-limiting cylinder 5 to enable the circular saw 1 at the front end of the annular bone taking device to be attached to the cortical bone;
s5: starting the electric drill to drive the hollow cylinder 2 and the trepan 1 to rotate, so that the trepan 1 and the hollow cylinder 2 are drilled into the bone until the depth limiting cylinder 5 abuts against the inner side surface of the closed end of the hollow cylinder 2 to limit;
s6: stopping rotating when the drill bit can not go deep; separating the drill from the hollow hexagonal prism 4;
s7: the clamping hoop 3 is screwed on from the tail part of the hollow cylinder 2 along the external thread, so that the upper part and the lower part of the hollow cylinder 2 which are symmetrically distributed along the open slot clamp the bone column which is sawn down, and finally the bone column and the guide needle are taken out.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a bone ware is got to trepan drum which characterized in that: the ring saw comprises a ring saw (1), a hollow cylinder (2) and a hollow hexagonal prism (4), wherein one end of the hollow cylinder (2) is in an open state, the other end of the hollow cylinder (2) is in a closed state, the ring saw (1) is integrally arranged on the outer edge of the open end of the hollow cylinder (2), and the hollow hexagonal prism (4) is fixedly arranged at the axis position of the closed end of the hollow cylinder (2).
2. The trepan cylindrical bone extractor of claim 1, wherein: the depth limiting device is characterized by further comprising a depth limiting cylinder (5), the diameter of the depth limiting cylinder (5) is slightly smaller than the inner diameter of the hollow cylinder (2), and a guide needle hole is formed in the axis position of the depth limiting cylinder (5).
3. The trepan cylindrical bone extractor of claim 1, wherein: the circular saw is characterized in that open grooves which are symmetrically distributed are formed in two sides of the hollow cylinder (2) and the circular saw (1), external threads are arranged on one side, close to the hollow hexagonal prism (4), of the surface of the hollow cylinder (2), and the clamping hoops (3) are installed through the external threads.
4. A trepan cylindrical bone harvester according to any one of claims 1 to 3, characterized in that: the bone extractor comprises the following specific use steps:
s1: firstly, performing fluoroscopy through a C-arm machine, and determining a bone taking position and depth by using a guide needle;
s2: the diameter of a bone is determined, a matched annular bone extractor is selected, and a hollow hexagonal prism (4) at the tail part is loaded on a hollow electric drill;
s3: determining the length of the selected depth limiting cylinder (5) according to the depth of the target bone taking;
s4: putting the depth-limiting cylinder (5) along the guiding needle to be attached to the cortical bone, inserting the annular bone taking device along the guiding needle, and wrapping the depth-limiting cylinder (5) to enable the circular saw (1) at the front end of the annular bone taking device to be attached to the cortical bone;
s5: starting the electric drill, driving the hollow cylinder (2) and the trepan (1) to rotate, and enabling the trepan (1) and the hollow cylinder (2) to drill into the bone until the depth limiting cylinder (5) abuts against the inner side surface of the closed end of the hollow cylinder (2) to limit;
s6: stopping rotating when the drill bit can not go deep; separating the drill from the hollow hexagonal prism (4);
s7: screwing the clamping hoop (3) on the tail part of the hollow cylinder (2) along the external thread, so that the upper part and the lower part of the hollow cylinder (2) which are symmetrically distributed along the open slot clamp the sawn bone column, and finally taking out the bone column and the guide needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857400.4A CN113425366A (en) | 2021-07-28 | 2021-07-28 | Circular saw cylinder bone extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110857400.4A CN113425366A (en) | 2021-07-28 | 2021-07-28 | Circular saw cylinder bone extractor |
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| Publication Number | Publication Date |
|---|---|
| CN113425366A true CN113425366A (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110857400.4A Pending CN113425366A (en) | 2021-07-28 | 2021-07-28 | Circular saw cylinder bone extractor |
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| Country | Link |
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| CN (1) | CN113425366A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392285A (en) * | 2023-06-08 | 2023-07-07 | 首都医科大学附属北京天坛医院 | Novel bone taking device |
-
2021
- 2021-07-28 CN CN202110857400.4A patent/CN113425366A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116392285A (en) * | 2023-06-08 | 2023-07-07 | 首都医科大学附属北京天坛医院 | Novel bone taking device |
| CN116392285B (en) * | 2023-06-08 | 2023-09-01 | 首都医科大学附属北京天坛医院 | Novel bone taking device |
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