CN103099657A - Unicondylar replacement femoral condyle pretreatment device - Google Patents
Unicondylar replacement femoral condyle pretreatment device Download PDFInfo
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- CN103099657A CN103099657A CN2013100735516A CN201310073551A CN103099657A CN 103099657 A CN103099657 A CN 103099657A CN 2013100735516 A CN2013100735516 A CN 2013100735516A CN 201310073551 A CN201310073551 A CN 201310073551A CN 103099657 A CN103099657 A CN 103099657A
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Abstract
The invention relates to a unicondylar replacement femoral condyle pretreatment device, comprising an insert part, a grip handle and a striking handle, wherein the upper surface of the insert part is concavely arc-shaped, and the insert part comprises a first end part and a second end part; the second end part is connected with the striking handle through the grip handle; and the end surface of the first end part is an inclined end surface which forms an acute angle with the lower surface of the insert part, and a blade extends at the upper end of the inclined end surface along the length direction of the insert part. Preferably, the concavely arc-shaped upper surface has a concavely arc shape matched with the radian of a femoral condyle. The lower end of the inclined end surface is intersected with the lower surface of the insert part to form a straight line. The extending length of the blade does not exceed the lower end of the inclined end surface. The cross section of the grip handle is smaller than that of the insert part. The cross section of the striking handle is greater than that of the grip handle. The insert part, the grip handle and the striking handle are integrally molded. The unicondylar replacement femoral condyle pretreatment device is ingenious in design and compact in structure, can be used for one-step treatment of the femoral condyle, facilitates the insertion of a thickness measuring device, and is suitable for large-scale popularization and application.
Description
Technical field
The present invention relates to single condyle replacement technique field, particularly single condyle displacement condyle of femur processing technology field, specifically refer to a kind of single condyle displacement condyle of femur preprocessor.
Background technology
At present to knee joint single condyle replacement (unicondylar knee arthroplasty, UKA), need insert thickness measuring device and carry out the femur side with guider and locate when processing condyle of femur.The upper surface of thickness measuring device is for roughly meeting the arc of condyle of femur radian.The detailed process that thickness measuring device inserts is: first Tibial osteotomy in operation, after Tibial osteotomy is completed, insert tibial insert and thickness measuring device under normal condition and prepare to process femur, but in a lot of situation because the reason thickness measuring devices such as hyperosteogeny can't insert.
For example when condyle of femur place's regression is heavier, because even the impact of hyperosteogeny often causes tibial side osteotomy height satisfied, thickness measuring device also is difficult to insert, need to process hyperosteogeny with rongeur, waste time and energy, the erroneous judgement that more likely makes the patient produce tibial side osteotomy quantity not sufficient strengthens the tibial side osteotomy and causes operative failure.
Therefore, need to provide a kind of single condyle displacement condyle of femur preprocessor, can disposable processing condyle of femur, facilitate thickness measuring device to insert.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of single condyle displacement condyle of femur preprocessor is provided, this list condyle displacement condyle of femur preprocessor design is ingenious, simple for structure, can disposable processing condyle of femur, facilitate thickness measuring device to insert, be suitable for large-scale promotion application.
To achieve these goals, single condyle displacement condyle of femur preprocessor of the present invention, be characterized in, comprise insertion portion, grab handle and impact handle, the upper surface of described insertion portion is the arcs of recesses upper surface, described insertion portion comprises first end and the second end, described the second end connects the described handle that impacts by described grab handle, the end face of described first end is inclined end face, the lower surface of described inclined end face and described insertion portion acutangulates setting, and the length direction of the described insertion portion of upper end edge of described inclined end face is extended with blade.
Preferably, described arcs of recesses upper surface has the arcs of recesses of coupling condyle of femur radian.
Preferably, the lower surface of the lower end of described inclined end face and described insertion portion is crossing is a straight line.
More preferably, described straight line is vertical with the length direction of described insertion portion.
Preferably, the development length of described blade is no more than the lower end of described inclined end face.
Preferably, the cross section of described grab handle is less than the cross section of described insertion portion.
Preferably, the described cross section of handle that impacts is greater than the cross section of described grab handle.
Preferably, described insertion portion, described grab handle and described to impact handle integrally formed.
Beneficial effect of the present invention specifically is:
1, single condyle displacement condyle of femur preprocessor of the present invention comprises insertion portion, grab handle and impact handle, the upper surface of described insertion portion is the arcs of recesses upper surface, described insertion portion comprises first end and the second end, described the second end connects the described handle that impacts by described grab handle, the end face of described first end is inclined end face, the lower surface of described inclined end face and described insertion portion acutangulates setting, the length direction of the described insertion portion of upper end edge of described inclined end face is extended with blade, thereby first end designs (Wedged head) for ramp type, conveniently insert and play the protection knee joint rear soft tissue effect of pushing open, blade is convenient to process hyperosteogeny, grab handle is convenient dominated by hand, impacting handle hammer easy to use impacts insertion portion is squeezed into condyle of femur, design ingenious, simple for structure, can disposable processing condyle of femur, facilitate thickness measuring device to insert, be suitable for large-scale promotion application.
2, the described arcs of recesses upper surface of single condyle displacement condyle of femur preprocessor of the present invention has the arcs of recesses of coupling condyle of femur radian, thereby increase the stability after inserting, for inserting, thickness measuring device provides suitable space, design ingenious, simple for structure, can disposable processing condyle of femur, facilitate thickness measuring device to insert, be suitable for large-scale promotion application.
Description of drawings
Fig. 1 is that the master of a specific embodiment of the present invention looks schematic diagram.
Fig. 2 is the schematic top plan view of specific embodiment shown in Figure 1.
The specific embodiment
In order more clearly to understand technology contents of the present invention, describe in detail especially exemplified by following examples.Should be understood that embodiment is only for example and non-limiting.
See also Fig. 1～shown in Figure 2, single condyle displacement condyle of femur preprocessor of the present invention comprises insertion portion 1, grab handle 2 and impacts handle 3, the upper surface of described insertion portion 1 is the arcs of recesses upper surface, described insertion portion 1 comprises first end 11 and the second end 12, described the second end 12 connects the described handle 3 that impacts by described grab handle 2, the end face of described first end 11 is inclined end face, the lower surface of described inclined end face and described insertion portion 1 acutangulates setting, and the length direction of the described insertion portion 2 of the upper end edge of described inclined end face is extended with blade 4.
Described arcs of recesses upper surface can have any suitable arcs of recesses, and for thickness measuring device can insert more matchingly, in specific embodiments of the invention, described arcs of recesses upper surface has the arcs of recesses of coupling condyle of femur radian.
It can be that line intersects can be also that point intersects that the lower surface of the lower end of described inclined end face and described insertion portion 1 intersects, when the lower end of described inclined end face is circular arc, crossing for point with the lower surface of described insertion portion 1, can cut out inclined end face by the arc head to form; When the lower end of described inclined end face is linear, with the lower surface of described insertion portion 1 be that line intersects, can cut out inclined end face by tack and form; See also illustrated in figures 1 and 2ly, in specific embodiments of the invention, it is a straight line that the lower surface of the lower end of described inclined end face and described insertion portion 1 intersects.
The length direction of described straight line and described insertion portion 1 can be vertical, also can out of plumb, and shown in Figure 2, in specific embodiments of the invention, described straight line is vertical with the length direction of described insertion portion 1.
The development length of described blade 4 can determine as required, sees also Fig. 1～shown in Figure 2, and in specific embodiments of the invention, the development length of described blade 4 is no more than the lower end of described inclined end face.
The size of described grab handle 2 can determine as required, sees also Fig. 1～shown in Figure 2, and in specific embodiments of the invention, the cross section of described grab handle 2 is less than the cross section of described insertion portion 1.
The described size that impacts handle 3 also can determine as required, sees also Fig. 1～shown in Figure 2, and in specific embodiments of the invention, the described cross section of handle 3 that impacts is greater than the cross section of described grab handle 2.
Described insertion portion 1, described grab handle 2 and the described handle 3 that impacts can be that independent parts link together, also can be integrally formed, and in specific embodiments of the invention, described insertion portion 1, described grab handle 2 and described to impact handle 3 integrally formed.
During use; first Tibial osteotomy in operation; after Tibial osteotomy is completed; insert tibial insert and single condyle displacement condyle of femur preprocessor of the present invention; specifically grip grab handle 2 with hands; first end 11 is aimed at osteotomy site and is inserted; conveniently insert and play by the ramp type design (Wedged head) of first end 11 the protection knee joint rear soft tissue effect of pushing open; blade 4 is for the treatment of hyperosteogeny; use hammer to impact the described handle 3 that impacts insertion portion 1 is squeezed into condyle of femur; then extract single condyle displacement condyle of femur preprocessor of the present invention, thickness measuring device is inserted.
To sum up, single condyle displacement condyle of femur preprocessor of the present invention design is ingenious, simple for structure, can disposable processing condyle of femur, and facilitate thickness measuring device to insert, be suitable for large-scale promotion application.
In this description, the present invention is described with reference to its specific embodiment.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, description and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (8)
1. a single condyle is replaced the condyle of femur preprocessor, it is characterized in that, comprise insertion portion, grab handle and impact handle, the upper surface of described insertion portion is the arcs of recesses upper surface, described insertion portion comprises first end and the second end, described the second end connects the described handle that impacts by described grab handle, the end face of described first end is inclined end face, the lower surface of described inclined end face and described insertion portion acutangulates setting, and the length direction of the described insertion portion of upper end edge of described inclined end face is extended with blade.
2. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, described arcs of recesses upper surface has the arcs of recesses of coupling condyle of femur radian.
3. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, it is a straight line that the lower end of described inclined end face and the lower surface of described insertion portion intersect.
4. single condyle displacement condyle of femur preprocessor according to claim 3, is characterized in that, described straight line is vertical with the length direction of described insertion portion.
5. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, the development length of described blade is no more than the lower end of described inclined end face.
6. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, the cross section of described grab handle is less than the cross section of described insertion portion.
7. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, the described cross section of handle that impacts is greater than the cross section of described grab handle.
8. single condyle displacement condyle of femur preprocessor according to claim 1, is characterized in that, described insertion portion, described grab handle and described to impact handle integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073551.6A CN103099657B (en) | 2013-03-07 | 2013-03-07 | Unicondylar replacement femoral condyle pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073551.6A CN103099657B (en) | 2013-03-07 | 2013-03-07 | Unicondylar replacement femoral condyle pretreatment device |
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| Publication Number | Publication Date |
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| CN103099657A true CN103099657A (en) | 2013-05-15 |
| CN103099657B CN103099657B (en) | 2015-05-20 |
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| CN201310073551.6A Active CN103099657B (en) | 2013-03-07 | 2013-03-07 | Unicondylar replacement femoral condyle pretreatment device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2226442Y (en) * | 1994-09-23 | 1996-05-08 | 李新忠 | Corrective chisel for fenestration operation of prolapse of lumbar intervertebral disc |
| US5683469A (en) * | 1995-02-15 | 1997-11-04 | Smith & Nephew, Inc. | Tibial trial prosthesis and bone preparation system |
| CN2440456Y (en) * | 2000-09-11 | 2001-08-01 | 刘富华 | Device for associating intervertebral disc mirror operation |
| WO2008037898A2 (en) * | 2006-09-27 | 2008-04-03 | Eric Duvillier | Apparatus for tibial-femoral resection |
| CN202537601U (en) * | 2012-03-13 | 2012-11-21 | 隋国侠 | Osteophyte cutting device |
| CN202699234U (en) * | 2012-05-22 | 2013-01-30 | 于凤宾 | Osteotome with boot-shaped chisel head |
| CN203089329U (en) * | 2013-03-07 | 2013-07-31 | 上海市杨浦区中心医院 | Single condyle replacement femoral condyle pretreater |
-
2013
- 2013-03-07 CN CN201310073551.6A patent/CN103099657B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226442Y (en) * | 1994-09-23 | 1996-05-08 | 李新忠 | Corrective chisel for fenestration operation of prolapse of lumbar intervertebral disc |
| US5683469A (en) * | 1995-02-15 | 1997-11-04 | Smith & Nephew, Inc. | Tibial trial prosthesis and bone preparation system |
| CN2440456Y (en) * | 2000-09-11 | 2001-08-01 | 刘富华 | Device for associating intervertebral disc mirror operation |
| WO2008037898A2 (en) * | 2006-09-27 | 2008-04-03 | Eric Duvillier | Apparatus for tibial-femoral resection |
| CN202537601U (en) * | 2012-03-13 | 2012-11-21 | 隋国侠 | Osteophyte cutting device |
| CN202699234U (en) * | 2012-05-22 | 2013-01-30 | 于凤宾 | Osteotome with boot-shaped chisel head |
| CN203089329U (en) * | 2013-03-07 | 2013-07-31 | 上海市杨浦区中心医院 | Single condyle replacement femoral condyle pretreater |
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| CN103099657B (en) | 2015-05-20 |
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Application publication date: 20130515 Assignee: Shanghai Luxi Medical Devices Co., Ltd. Assignor: Shanghai Yangpu Central Hospital Contract record no.: 2019310000051 Denomination of invention: Unicondylar replacement femoral condyle pretreatment device Granted publication date: 20150520 License type: Exclusive License Record date: 20190722 |
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