CN210811343U - Bone file for removing articular surface cartilage - Google Patents
Bone file for removing articular surface cartilage Download PDFInfo
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- CN210811343U CN210811343U CN201921503921.4U CN201921503921U CN210811343U CN 210811343 U CN210811343 U CN 210811343U CN 201921503921 U CN201921503921 U CN 201921503921U CN 210811343 U CN210811343 U CN 210811343U
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- file
- bone
- articular surface
- cartilage
- strip
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Abstract
The utility model provides a bone file for getting rid of articular surface cartilage, a bone file for getting rid of articular surface cartilage includes at least: the file main part, the file main part includes 3 at least file strips that intersect in the same point, the file strip is curved rectangular and uses the nodical radioactivity distribution as the center, at least one side of file strip is the bar blade, the blade sharpness of bar blade is: when 3-0 real silk with the cutting line diameter of 0.21mm-0.22mm is twisted into the uncoated suture line, the cutting force is 0.01N-0.80N; and one end of the connecting rod is fixed at the intersection point of the rasp strip. The utility model discloses a can reject articular surface cartilage convenient and fast ground, articular surface cartilage improves the bone repair ability of this type of bone grafting material to the adverse effect of osseointegration when avoiding using articular bones such as thighbone head as material preparation cancellous bone granule, shortens the operation time simultaneously.
Description
Technical Field
The utility model relates to a medical appliance, in particular to a bone file for removing articular surface cartilage.
Background
The granular bone prepared by grinding the articular bones such as autologous or allogeneic femoral heads has good bone conduction function, bone induction function and osteogenesis function and is an important source of bone grafting materials. Such as: when a patient with developmental dysplasia of hip joints carries out total hip joint replacement, the bone defect around the acetabulum is usually repaired by taking the autologous femoral head taken out in the operation as a bone grafting material; for another example: bone defects caused by clinical bone nonunion, bone tumor excision, severe trauma and the like also take allogeneic femoral heads as bone grafting materials. The pore structure of the cancellous bone portion in the articular bone plays an extremely important role in the ingrowth of new bone and osseointegration, except for the same components as normal bone. However, the surface of the joint bone is tightly wrapped with a layer of joint cartilage, and the compact joint cartilage can block the exchange of nutrient metabolites between implanted bone and organism, block the growth of new blood vessels, inhibit the creeping substitution effect of new bone and be not beneficial to the integration of the transplanted bone and normal bone tissue; therefore, joint bone particles used as bone grafting materials need to be removed from the surface of the joint bone particles as much as possible before filling bone defects so as to reduce the negative influence of cartilage on osseointegration and improve the success rate of treatment.
However, there is no method for removing articular cartilage conveniently and effectively, and the current treatment method in clinic only depends on a bone crusher to crush articular bone first and then remove larger cartilage one by one manually by doctors. The manual removal mode which is nearly the original mode can not completely remove the cartilage on the surface of the joint, so that more cartilage residues are caused, time and labor are wasted, and the operation time is prolonged.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a bone file for removing articular surface cartilage.
To achieve the above and other related objects, the present invention provides a bone file for removing articular surface cartilage, the bone file for removing articular surface cartilage comprising at least:
the file main part, the file main part includes 3 at least file strips that intersect in the same point, the file strip is curved rectangular and uses the nodical radioactivity distribution as the center, at least one side of file strip is the bar blade, the blade sharpness of bar blade is: when 3-0 real silk with the cutting line diameter of 0.21mm-0.22mm is twisted into the uncoated suture line, the cutting force is 0.01N-0.80N;
and one end of the connecting rod is fixed at the intersection point of the rasp strip.
As mentioned above, the bone file for removing articular surface cartilage of the utility model has the following beneficial effects:
the utility model discloses a can reject articular surface cartilage convenient and fast ground, articular surface cartilage improves the bone repair ability of this type of bone grafting material to the adverse effect of osseointegration when avoiding using articular bones such as thighbone head as material preparation cancellous bone granule, shortens the operation time simultaneously.
Drawings
Fig. 1 is a schematic view of a bone file for removing cartilage from the surface of an joint according to an embodiment of the present invention.
Fig. 2 is a bottom view of an embodiment of the bone file for removing cartilage from an articular surface of the present invention.
Description of the element reference numerals
1 File body
11 strip-shaped blade
12 file strip
2 connecting rod
Diameter of D circle
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
As shown in fig. 1, the bone file for removing cartilage on the surface of an joint of the present invention comprises at least:
file main part 1, the file main part includes that at least 3 intersect in the file strip 12 of same point, the file strip is curved rectangular and uses the nodical radioactivity distribution as the center, at least one side of file strip is bar blade 11, the blade sharpness of bar blade 11 is: when 3-0 real silk with the cutting line diameter of 0.21mm-0.22mm is twisted into the uncoated suture line, the cutting force is 0.01N-0.80N;
one end of the connecting rod 2 is fixed at the intersection point of the rasp bar 12.
The sharpness of the cutting edge of the strip-shaped blade can ensure that the cartilage on the surface of the joint can be removed.
In one embodiment, the cutting force may be 0.01N-0.05N, 0.05N-0.10N, 0.10N-0.20N, 0.20N-0.30N, 0.30N-0.40N, 0.40N-0.50N, 0.50N-0.60N, 0.60N-0.70N, 0.70N-0.80N.
The connecting rod is used for connecting an external power device so as to rotate the bone file.
In one embodiment, the connecting rod is provided with a fixing member connected to an external power unit. Such as a protrusion or threads that mate with an external power device.
The sharpness of the cutting edge is determined by adopting a cutting edge sharpness test method of the surgical blade provided in the Chinese people's republic of China medical industry standard YY 0174-2005.
The arc design makes the concave surface of bone file closely laminate with the articular cartilage face, utilizes power device to make the high-speed rotation of bone file, rejects articular surface cartilage fast with the help of the shearing action of blade in the file main part.
The sharpness of the cutting edge is determined by adopting a cutting edge sharpness test method of the surgical blade provided in the Chinese people's republic of China medical industry standard YY 0174-2005.
In one embodiment, the shape and/or curvature of each of the rasp strips 12 is the same.
In one embodiment, the plurality of rasp bars 12 are evenly distributed.
In one embodiment, the ends of the rasp bars are pointed to increase the destructive power.
In one embodiment, the individual rasp strips 12 share the same center.
In one embodiment, the central angle of each rasp strip 12 is 90 degrees.
In one embodiment, as shown in FIG. 2, the free ends of the individual rasp bars 12 lie on the same circle (shown as a dotted circle, which is shown for convenience and does not exist in practice), and the diameter D of the circle is 20-120 mm.
In one embodiment, the diameter D of the circle is 20mm to 30mm, 30mm to 40mm, 40mm to 50mm, 50mm to 60mm, 60mm to 70mm, 70mm to 80mm, 80mm to 90mm, 90mm to 100mm, 100mm to 110mm, 110mm to 120 mm.
In one embodiment, the cutting edge of each of the rasp bars 12 protrudes beyond the concave surface of the rasp bar
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (7)
1. A bone file for removing cartilage from an articular surface, characterized in that it comprises at least:
file main part (1), the file main part includes that at least 3 intersect in file strip (12) of same point, the file strip is curved rectangular and uses the nodical radioactivity distribution as the center, at least one side of file strip is bar blade (11), the blade sharpness of bar blade (11) is: when 3-0 real silk with the cutting line diameter of 0.21mm-0.22mm is twisted into the uncoated suture line, the cutting force is 0.01N-0.80N;
one end of the connecting rod (2) is fixed at the intersection point of the rasp bar (12).
2. A bone file for removing cartilage from an articular surface as claimed in claim 1, characterized in that the shape and/or curvature of the individual file strips (12) are identical.
3. A bone file for removing cartilage from an articular surface according to claim 1, characterized in that several file strips (12) are evenly distributed.
4. The bone file for removing articular surface cartilage as in claim 1, wherein the individual file strips (12) share the same center.
5. The bone file for removing articular surface cartilage as set forth in claim 1, characterized in that the central angle of each of the file strips (12) is 90 degrees.
6. The bone file for removing articular surface cartilage as claimed in claim 1, characterized in that the free ends of the individual file strips (12) lie on the same circle, and the diameter of said circle is 20-120 mm.
7. A bone file for removing articular surface cartilage as defined in claim 1 in which the cutting edge of each of the rasp strips (12) protrudes beyond the concave surface of the rasp strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503921.4U CN210811343U (en) | 2019-09-10 | 2019-09-10 | Bone file for removing articular surface cartilage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921503921.4U CN210811343U (en) | 2019-09-10 | 2019-09-10 | Bone file for removing articular surface cartilage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210811343U true CN210811343U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921503921.4U Active CN210811343U (en) | 2019-09-10 | 2019-09-10 | Bone file for removing articular surface cartilage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998805A (en) * | 2021-04-17 | 2021-06-22 | 北京大学第三医院（北京大学第三临床医学院） | Joint abrupt joint contusion rod |
-
2019
- 2019-09-10 CN CN201921503921.4U patent/CN210811343U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112998805A (en) * | 2021-04-17 | 2021-06-22 | 北京大学第三医院（北京大学第三临床医学院） | Joint abrupt joint contusion rod |
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