CN209203417U - A kind of minimally invasive planing tool - Google Patents
A kind of minimally invasive planing tool Download PDFInfo
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- CN209203417U CN209203417U CN201820371604.0U CN201820371604U CN209203417U CN 209203417 U CN209203417 U CN 209203417U CN 201820371604 U CN201820371604 U CN 201820371604U CN 209203417 U CN209203417 U CN 209203417U
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- face
- tube
- planing tool
- side end
- minimally invasive
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Abstract
The utility model provides a kind of minimally invasive planing tool, including inner and outer tubes, said inner tube is sheathed on outer tube, it is characterized in that, said inner tube includes the first cutter tooth portion, first cutter tooth portion is equipped with the first side end face, and first side end face end is equipped with the first side edge, and first side end face and outer tube wall form the first side edge angle；The first side edge angle is 30-90 °.Minimally invasive planing tool side edge Partial angle is processed into 30-90 ° by the utility model, improves original excision mode, is improved the service performance of planing tool and is improved surgical quality.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to the minimally invasive planing tool for Minimally Invasive Surgery.
Background technique
The structure of the ununified standard such as structure size of planing tool used in arthrocsopic surgery at present, planing tool cutter tooth is designing
The removal principle of biological tissue is not considered when manufacture.Due to existing minimally invasive planing tool outer tube cutting tooth tip portions sharpness not
Foot, cannot effectively be pierced into inside cartilaginous tissue and meniscal tissue, make the occlusion excision of the fixed effect and inner and outer pipes of outer tube
Declined with effect, good positioning action cannot be played, causes to cut off efficiency decline.Furthermore arthroscopic surgery requires excision
For process close to shear action, there can be no tissues to tear phenomenon, and requires that postoperative to be cut portion faces flatness good.1 from figure
It can be observed, during excision, inner and outer pipes cutting tooth point of a knife position contacts minimally invasive planing tool commonly used in the prior art with tissue
Position exist very big gap.Gap is bigger, and cutting force is bigger, is more easy to cause and tears, and leads to patient in the course of surgery
Secondary damage.The gap for reducing the position that inner and outer pipes cutting tooth point of a knife position is contacted with tissue can make excision process is closer to cut
The effect of cutting reduces cutting force, improves stock-removing efficiency and the postoperative surface smoothness for being cut position, conducive to operation go on smoothly and
The rehabilitation of patient.
In addition the facewidth of common planing tool cutting tooth point of a knife part is pipe thickness, therefore during excision, tooth tip portion
Position is contacted with the way of contact organized for line so that cutting tooth to the puncture ability of cartilaginous tissue and meniscal tissue significantly under
Drop, sharpness decline, stock-removing efficiency lower.
Utility model content
Existing minimally invasive planing tool there are aiming at the problem that, the utility model provides a kind of minimally invasive planing tool, in order to improve cutting edge
The puncture ability at point of a knife position and the sharpness for improving minimally invasive planing tool, are processed into 30- for minimally invasive planing tool side edge Partial angle
90 °, original excision mode is improved, the service performance of planing tool is improved and improves surgical quality.
The technical solution of the utility model are as follows: a kind of minimally invasive planing tool, including inner and outer tubes, said inner tube are sheathed on outer tube
It is internal, which is characterized in that said inner tube includes the first cutter tooth portion, and first cutter tooth portion is equipped with the first side end face, and described first
Side end face end is equipped with the first side edge, and first side end face and outer tube wall form the first side edge angle；First side edge
Angle is 30-90 °.
Further, the outer tube include the second cutter tooth portion, second cutter tooth portion be equipped with the second side end face, described second
Side end face end is equipped with the second side edge, and second side end face and outer wall of inner tube form second side basil degree；Second side edge
Angle is 30-90 °.
In the utility model, minimally invasive planing tool the first side edge angle and second side basil degree will be processed into 30-90 °, excision
Process avoids tissue in surgical procedure from tearing, reduces the generation of secondary mechanical damage closer to shear action, more similar scissors
Rate improves original excision mode, improves the service performance of planing tool and improves surgical quality.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Further, the first side edge angle is 45-75 °.
Further, second side basil degree is 45-75 °.
Particularly, the utility model be according to the prior art, as shown in Figure 1, define the utility model meaning cutter tooth portion,
Side end face, side tool sword.
In the utility model, using minimally invasive planing tool by the stainless steel outer sheath tube of diameter 1.9-5.5mm and rotatable
Hollow bowl and corresponding suction and cutting window composition, i.e. " tube-in-tube " structure.In arthroscopic surgery, minimally invasive plane
Knife is connect with suction unit, and inner tube window is made to form negative pressure, tissue to be cut is attracted in cutting window, in tissue ablation process
In, the rotational movement tissue of inner tube cutting tooth keeps tissue close to outer tube cutting tooth, and fixed outer tube passes through cutting
Tooth is pierced into interior tissue and plays the role of certain fixed function, and the relative rotation of inner and outer pipes is lower to be realized to cartilaginous tissue and meniscus
Occlusion excision.
The utility model has the beneficial effects that:
1, it effectively reduces inner and outer pipes cutting tooth point of a knife position and organizes the gap of contact position；The closer shearing of excision process
Effect, more similar scissors avoid tissue in surgical procedure from tearing, reduce the incidence of secondary mechanical damage, improve postoperative cut
The surface smoothness at position keeps contact of the postoperative knee cartilage of patient with meniscus all right, is conducive to patient postoperative rehabilitation
And reduce the generation of complication.
2, the facewidth for greatly reducing planing tool cutting tooth point of a knife part is changed to point contact from original line contact, can be greatly
Puncture ability is improved, improves surgical procedure middle external tube to the crystallized ability of tissue.
3, the side edge Partial angle for commonly using minimally invasive planing tool is 90 °, and side edge part is designed to 30-90 ° by present design, energy
Effectively improve the sharpness of planing tool.
Detailed description of the invention
Fig. 1 is minimally invasive planning tool structure schematic diagram in the prior art；
Fig. 2 is the inner tube structure schematic diagram of the utility model；
Fig. 3 is the outer tube structure schematic diagram of the utility model；
Fig. 4 is the structural schematic diagram of the utility model；
Fig. 5 is that planing tool in the prior art cuts off model schematic；
Fig. 6 is that the planing tool in the utility model cuts off model schematic.
Specific embodiment
The utility model preferred embodiment is provided, with reference to the accompanying drawing the technical solution of the utility model is described in detail.
Embodiment 1
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 30 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 30 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Particularly, the utility model is according to the prior art, as shown in Figure 1, defining the cutter tooth portion of the utility model meaning
10, side end face 11, side tool sword 12.
In the utility model, using minimally invasive planing tool by the stainless steel outer sheath tube of diameter 1.9-5.5mm and rotatable
Hollow bowl and corresponding suction and cutting window composition, i.e. " tube-in-tube " structure.In arthroscopic surgery, minimally invasive plane
Knife is connect with suction unit, and inner tube window is made to form negative pressure, tissue to be cut is attracted in cutting window, in tissue ablation process
In, the rotational movement tissue of inner tube cutting tooth keeps tissue close to outer tube cutting tooth, and fixed outer tube passes through cutting
Tooth is pierced into interior tissue and plays the role of certain fixed function, and the relative rotation of inner and outer pipes is lower to be realized to cartilaginous tissue and meniscus
Occlusion excision.
Embodiment 2
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 90 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 90 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Embodiment 3
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 45 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 45 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Embodiment 4
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 30-90 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 75 °.
In the utility model, minimally invasive planing tool the first side edge angle and second side basil degree will be processed into 75 °, cut off process
Closer to shear action, more similar scissors avoids tissue in surgical procedure from tearing, reduces the incidence of secondary mechanical damage, change
It has been apt to original excision mode, improve the service performance of planing tool and has improved surgical quality.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Embodiment 5
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 60 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 60 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Embodiment 6
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 85 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 85 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
Embodiment 7
A kind of minimally invasive planing tool 1, including inner tube 2 and outer tube 3, said inner tube is sheathed on outer tube, which is characterized in that described
Inner tube 2 includes the first cutter tooth portion 20, and first cutter tooth portion is equipped with the first side end face 21, and first side end face end is equipped with the
One side edge 22, first side end face and outer tube wall form the first side edge angle；The first side edge angle is 40 °.
Further, the outer tube 3 includes the second cutter tooth portion 30, and second cutter tooth portion is equipped with the second side end face 31, institute
It states the second side end face end and forms second side basil degree equipped with the second side edge 32, second side end face and outer wall of inner tube；It is described
Second side basil degree is 40 °.
Further, said inner tube is hollow tube.
Further, the outer tube is hollow tube.
Further, said inner tube can rotate freely in outer tube.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.For the technical detail of not detailed descriptions all in the utility model, it can pass through ability
Domain any prior art is realized.
Claims (6)
1. a kind of minimally invasive planing tool, including inner and outer tubes, said inner tube are sheathed on outer tube, which is characterized in that said inner tube
Including the first cutter tooth portion, first cutter tooth portion is equipped with the first side end face, and first side end face end is equipped with the first side edge, institute
It states the first side end face and outer tube wall forms the first side edge angle；The first side edge angle is 30-90 °；The outer tube includes
Second cutter tooth portion, second cutter tooth portion are equipped with the second side end face, and second side end face end is equipped with the second side edge, and described the
Two side end faces and outer wall of inner tube form second side basil degree；Second side basil degree is 30-90 °.
2. a kind of minimally invasive planing tool according to claim 1, which is characterized in that said inner tube is hollow tube.
3. a kind of minimally invasive planing tool according to claim 1, which is characterized in that the outer tube is hollow tube.
4. a kind of minimally invasive planing tool according to claim 1, which is characterized in that said inner tube can rotate freely in outer tube.
5. a kind of minimally invasive planing tool according to claim 1, which is characterized in that the first side edge angle is 45-75 °.
6. a kind of minimally invasive planing tool according to claim 1, which is characterized in that second side basil degree is 45-75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820371604.0U CN209203417U (en) | 2018-03-19 | 2018-03-19 | A kind of minimally invasive planing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820371604.0U CN209203417U (en) | 2018-03-19 | 2018-03-19 | A kind of minimally invasive planing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209203417U true CN209203417U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820371604.0U Active CN209203417U (en) | 2018-03-19 | 2018-03-19 | A kind of minimally invasive planing tool |
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| CN (1) | CN209203417U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378892A (en) * | 2018-03-19 | 2018-08-10 | 广东工业大学 | A kind of minimally invasive planing tool |
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2018
- 2018-03-19 CN CN201820371604.0U patent/CN209203417U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108378892A (en) * | 2018-03-19 | 2018-08-10 | 广东工业大学 | A kind of minimally invasive planing tool |
| CN108378892B (en) * | 2018-03-19 | 2023-12-15 | 广东工业大学 | Minimally invasive planing tool |
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