CN108378892B - Minimally invasive planing tool - Google Patents
Minimally invasive planing tool Download PDFInfo
- Publication number
- CN108378892B CN108378892B CN201810224873.9A CN201810224873A CN108378892B CN 108378892 B CN108378892 B CN 108378892B CN 201810224873 A CN201810224873 A CN 201810224873A CN 108378892 B CN108378892 B CN 108378892B
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- China
- Prior art keywords
- side edge
- tube
- pipe
- side end
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 210000001519 tissue Anatomy 0.000 claims description 24
- 210000000845 cartilage Anatomy 0.000 claims description 6
- 230000005499 meniscus Effects 0.000 claims description 6
- 230000036346 tooth eruption Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000010008 shearing Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000002324 minimally invasive surgery Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000000629 knee joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
Classifications
-
- 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
- A61B17/1659—Surgical rasps, files, planes, or scrapers
-
- 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
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1675—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
Abstract
The invention provides a minimally invasive planer tool, which comprises an inner pipe and an outer pipe, wherein the inner pipe is sleeved in the outer pipe, and is characterized in that the inner pipe comprises a first cutter tooth part, the first cutter tooth part is provided with a first side end surface, the tail end of the first side end surface is provided with a first side edge, and the first side end surface and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 30-90 degrees. The invention processes the angle of the side edge part of the minimally invasive planer tool into 30-90 degrees, improves the original cutting mode, improves the usability of the planer tool and improves the operation quality.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a minimally invasive planer tool for minimally invasive surgery.
Background
At present, the structural dimensions and the like of a planing tool used in arthroscopic surgery have no unified standard, and the structure of the planing tool teeth does not consider the principle of biological tissue removal during design and manufacture. Because the sharpness of the tooth tip part of the cutting tooth of the outer tube of the existing minimally invasive planer tool is insufficient, cartilage tissue and meniscus tissue cannot be effectively penetrated, the fixing effect of the outer tube and the occlusion excision effect of the inner tube and the outer tube are reduced, a good positioning effect cannot be achieved, and excision efficiency is reduced. In addition, arthroscopic minimally invasive surgery requires that the excision process is close to shearing, tissue tearing cannot occur, and the surface flatness of the incised part after operation is good. As can be seen from fig. 1, in the minimally invasive planing tool commonly used in the prior art, a large gap exists between the tip parts of the inner and outer tube cutting teeth and the contact position of the tissue during the excision process. The larger the gap, the greater the cutting force, and the more likely it is to cause tearing, resulting in secondary damage to the patient during surgery. The clearance at the contact position of the cutter point part of the inner and outer tube cutting teeth and the tissue is reduced, so that the cutting process is closer to the shearing action, the cutting force is reduced, the cutting efficiency and the surface flatness of the cut part after operation are improved, and the smooth operation and the rehabilitation of patients are facilitated.
In addition, the tooth width of the tip part of the cutting tooth of the common plane cutter is the thickness of the pipe wall, so that the contact mode of the tip part and the tissue is line contact in the cutting process, the puncturing capability of the cutting tooth on cartilage tissue and meniscus tissue is greatly reduced, the sharpness is reduced, and the cutting efficiency is reduced.
Disclosure of Invention
Aiming at the problems of the existing minimally invasive planing tool, the invention provides the minimally invasive planing tool, and in order to improve the puncture capability of the tool point part of the cutting edge and the sharpness of the minimally invasive planing tool, the angle of the side edge part of the minimally invasive planing tool is processed to be 30-90 degrees, so that the original cutting mode is improved, the use performance of the planing tool is improved, and the operation quality is improved.
The technical scheme of the invention is as follows: the minimally invasive planing tool comprises an inner pipe and an outer pipe, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe comprises a first cutter tooth part, a first side end face is arranged on the first cutter tooth part, a first side edge is arranged at the tail end of the first side end face, and a first side edge angle is formed between the first side end face and the inner wall of the outer pipe; the first side edge angle is 30-90 degrees.
Further, the outer tube comprises a second cutter tooth part, a second side end face is arranged on the second cutter tooth part, a second side edge is arranged at the tail end of the second side end face, and a second side edge angle is formed between the second side end face and the outer wall of the inner tube; the second side edge angle is 30-90 degrees.
In the invention, the angle of the first side edge and the angle of the second side edge of the minimally invasive planer tool are processed to be 30-90 degrees, the cutting process is closer to the shearing action, and the minimally invasive planer tool is more similar to scissors, so that the tissue is prevented from being torn in the operation process, the occurrence rate of secondary mechanical damage is reduced, the original cutting mode is improved, the service performance of the planer tool is improved, and the operation quality is improved.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Still further, the first side edge angle is 45-75 °.
Still further, the second side edge angle is 45-75 °.
In particular, the present invention defines a tooth portion, a side end surface, and a side blade according to the present invention, as shown in fig. 1, according to the prior art.
In the invention, a minimally invasive planer tool is adopted and consists of a stainless steel outer protective sleeve with the diameter of 1.9-5.5mm, a rotatable hollow inner tube and corresponding suction and cutting windows, namely a tube-in-tube structure. In arthroscope minimally invasive surgery, a minimally invasive planer tool is connected with a suction device, an inner tube window forms negative pressure, tissue to be cut is attracted into a cutting window, in the tissue cutting process, the rotating motion of an inner tube cutting tooth drives the tissue to approach an outer tube cutting tooth, a fixed outer tube penetrates into the inner tissue through the cutting tooth to play a certain fixing role, and the occlusion cutting of cartilage tissue and meniscus is realized under the relative rotating action of the inner tube and the outer tube.
The invention has the beneficial effects that:
1. the gap between the knife point part of the inner and outer tube cutting teeth and the contact position of tissues is effectively reduced; the excision process is closer to the shearing action, more similar to scissors, avoids tissue tearing in the operation process, reduces the incidence of secondary mechanical injury, improves the surface smoothness of the incised part after the operation, ensures that the contact condition of the knee joint cartilage and the meniscus of the patient after the operation is good, and is beneficial to the postoperative rehabilitation of the patient and the reduction of complications.
2. The tooth width of the cutter point part of the cutting tooth of the plane cutter is greatly reduced, the original line contact is changed into the point contact, the puncture capability is greatly improved, and the fixing capability of the outer tube to tissues in the operation process is improved.
3. The angle of the side edge part of the common minimally invasive planing tool is 90 degrees, and the design scheme designs the side edge part to be 30-90 degrees, so that the sharpness of the planing tool can be effectively improved.
Drawings
FIG. 1 is a schematic view of a prior art minimally invasive planer tool;
FIG. 2 is a schematic view of the inner tube structure of the present invention;
FIG. 3 is a schematic view of the structure of an outer tube according to the present invention;
FIG. 4 is a schematic diagram of the structure of the present invention;
FIG. 5 is a schematic view of a prior art planer tool cutting model;
fig. 6 is a schematic view of a planer tool cutting model in the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention is given with reference to the accompanying drawings, so as to explain the technical scheme of the present invention in detail.
Example 1
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 30 °.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 30 °.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
In particular, according to the prior art, the present invention defines a tooth portion 10, a side end face 11, and a side blade 12 according to the present invention as shown in fig. 1.
In the invention, a minimally invasive planer tool is adopted and consists of a stainless steel outer protective sleeve with the diameter of 1.9-5.5mm, a rotatable hollow inner tube and corresponding suction and cutting windows, namely a tube-in-tube structure. In arthroscope minimally invasive surgery, a minimally invasive planer tool is connected with a suction device, an inner tube window forms negative pressure, tissue to be cut is attracted into a cutting window, in the tissue cutting process, the rotating motion of an inner tube cutting tooth drives the tissue to approach an outer tube cutting tooth, a fixed outer tube penetrates into the inner tissue through the cutting tooth to play a certain fixing role, and the occlusion cutting of cartilage tissue and meniscus is realized under the relative rotating action of the inner tube and the outer tube.
Example 2
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 90 °.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 90 °.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Example 3
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 45 degrees.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 45 degrees.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Example 4
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 30-90 degrees.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 75 °.
In the invention, the angle of the first side edge and the angle of the second side edge of the minimally invasive planer tool are processed to be 75 degrees, the cutting process is closer to the shearing action, and is more similar to that of scissors, so that the tissue is prevented from being torn in the operation process, the occurrence rate of secondary mechanical damage is reduced, the original cutting mode is improved, the service performance of the planer tool is improved, and the operation quality is improved.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Example 5
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 60 °.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 60 °.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Example 6
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 85 °.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 85 °.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
Example 7
The minimally invasive planing tool 1 comprises an inner pipe 2 and an outer pipe 3, wherein the inner pipe is sleeved inside the outer pipe, and is characterized in that the inner pipe 2 comprises a first cutter tooth part 20, the first cutter tooth part is provided with a first side end face 21, the tail end of the first side end face is provided with a first side edge 22, and the first side end face and the inner wall of the outer pipe form a first side edge angle; the first side edge angle is 40 °.
Further, the outer tube 3 includes a second cutter tooth portion 30, where the second cutter tooth portion is provided with a second side end surface 31, and a second side edge 32 is provided at the end of the second side end surface, and the second side end surface forms a second side edge angle with the outer wall of the inner tube; the second side edge angle is 40 °.
Further, the inner tube is a hollow tube body.
Further, the outer tube is a hollow tube body.
Further, the inner tube is freely rotatable within the outer tube.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art. All technical details not described in detail in the invention can be realized by any prior art in the field.
Claims (1)
1. The minimally invasive planing tool comprises an inner pipe, an outer pipe and a suction and cutting window, wherein the inner pipe is sleeved inside the outer pipe, the outer pipe is a stainless steel outer-layer protective pipe with the diameter of 1.9-5.5mm, and the inner pipe is a rotatable hollow inner pipe; the minimally invasive planing tool is connected with the suction device, so that the inner tube window forms negative pressure, the tissue to be cut is sucked into the cutting window, in the tissue cutting process, the rotating motion of the inner tube cutting teeth drives the tissue to approach the outer tube cutting teeth, the fixed outer tube penetrates into the inner tissue through the cutting teeth to play a certain fixing role, and the occlusion cutting of cartilage tissue and meniscus is realized under the relative rotating action of the inner tube and the outer tube;
the inner tube comprises a first cutter tooth part, wherein the first cutter tooth part is provided with a first side end face, the tail end of the first side end face is provided with a first side edge, and a first side edge angle is formed between the first side end face and the inner wall of the outer tube; the first side edge angle is 75 degrees;
the outer tube comprises a second cutter tooth part, a second side end face is arranged on the second cutter tooth part, a second side edge is arranged at the tail end of the second side end face, and a second side edge angle is formed between the second side end face and the outer wall of the inner tube; the second side edge angle is 75 degrees;
the inner pipe is a hollow pipe body;
the outer tube is a hollow tube body;
the inner tube is freely rotatable within the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224873.9A CN108378892B (en) | 2018-03-19 | 2018-03-19 | Minimally invasive planing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810224873.9A CN108378892B (en) | 2018-03-19 | 2018-03-19 | Minimally invasive planing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108378892A CN108378892A (en) | 2018-08-10 |
| CN108378892B true CN108378892B (en) | 2023-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810224873.9A Active CN108378892B (en) | 2018-03-19 | 2018-03-19 | Minimally invasive planing tool |
Country Status (1)
| Country | Link |
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| CN (1) | CN108378892B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5693063A (en) * | 1996-04-10 | 1997-12-02 | Bristol-Myers Squibb Company | Process for shaping and sharpening a rotatable surgical shaver blade |
| CN103327911A (en) * | 2011-01-25 | 2013-09-25 | 吉鲁斯恩特公司 | Surgical cutting instrument with distal suction capabiilty |
| CN203303117U (en) * | 2013-04-22 | 2013-11-27 | 重庆西山科技有限公司 | Surgical planing device tool bit |
| CN106264653A (en) * | 2016-08-29 | 2017-01-04 | 广东工业大学 | A kind of Wicresoft planing tool |
| CN106344122A (en) * | 2016-08-29 | 2017-01-25 | 广东工业大学 | Blade structure |
| CN209203417U (en) * | 2018-03-19 | 2019-08-06 | 广东工业大学 | A kind of minimally invasive planing tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060212060A1 (en) * | 2005-02-11 | 2006-09-21 | Arthrex, Inc. | Arthroscopic shaver and method of manufacturing same |
| US7674263B2 (en) * | 2005-03-04 | 2010-03-09 | Gyrus Ent, L.L.C. | Surgical instrument and method |
| EP1859881B1 (en) * | 2005-03-11 | 2017-02-22 | Nissan Motor Company Limited | Cutting process |
-
2018
- 2018-03-19 CN CN201810224873.9A patent/CN108378892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5693063A (en) * | 1996-04-10 | 1997-12-02 | Bristol-Myers Squibb Company | Process for shaping and sharpening a rotatable surgical shaver blade |
| CN103327911A (en) * | 2011-01-25 | 2013-09-25 | 吉鲁斯恩特公司 | Surgical cutting instrument with distal suction capabiilty |
| CN203303117U (en) * | 2013-04-22 | 2013-11-27 | 重庆西山科技有限公司 | Surgical planing device tool bit |
| CN106264653A (en) * | 2016-08-29 | 2017-01-04 | 广东工业大学 | A kind of Wicresoft planing tool |
| CN106344122A (en) * | 2016-08-29 | 2017-01-25 | 广东工业大学 | Blade structure |
| CN209203417U (en) * | 2018-03-19 | 2019-08-06 | 广东工业大学 | A kind of minimally invasive planing tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108378892A (en) | 2018-08-10 |
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