CN103099657B - Unicondylar replacement femoral condyle pretreatment device - Google Patents

Unicondylar replacement femoral condyle pretreatment device Download PDF

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Publication number
CN103099657B
CN103099657B CN201310073551.6A CN201310073551A CN103099657B CN 103099657 B CN103099657 B CN 103099657B CN 201310073551 A CN201310073551 A CN 201310073551A CN 103099657 B CN103099657 B CN 103099657B
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China
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condyle
insertion portion
femur
handle
face
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CN201310073551.6A
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CN103099657A (en
Inventor
涂意辉
马童
薛华明
蔡珉巍
刘晓东
文涛
李清
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Shanghai Yangpu Central Hospital
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Shanghai Yangpu Central Hospital
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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

Single condyle displacement condyle of femur preprocessor
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), thickness measuring device need be inserted when processing condyle of femur and guider carries out location, femur side.The upper surface of thickness measuring device is the arc roughly meeting condyle of femur radian.The detailed process that thickness measuring device inserts is: first Tibial osteotomy in operation, after Tibial osteotomy completes, inserts tibial insert and thickness measuring device preparation process femur under normal condition, but because the reason thickness measuring devices such as hyperosteogeny cannot insert in a lot of situation.
Such as when the regression of condyle of femur place is heavier, even if the impact due to hyperosteogeny often causes tibial side osteotomy high satisfactory, thickness measuring device is also difficult to insert, need by rongeur process hyperosteogeny, waste time and energy, more likely make patient produce the erroneous judgement of tibial side osteotomy quantity not sufficient, strengthen tibial side osteotomy and cause operative failure.
Therefore, need to provide a kind of single condyle displacement condyle of femur preprocessor, can disposable process condyle of femur, facilitate thickness measuring device to insert.
Summary of the invention
The object of the invention is to overcome above-mentioned shortcoming of the prior art, provide a kind of single condyle displacement condyle of femur preprocessor, this single condyle displacement condyle of femur preprocessor design is ingenious, simple for structure, can disposable process 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 concave arc-shaped upper surface, described insertion portion comprises first end and the second end, described the second end connects described impact handle 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 described in the upper end edge of described inclined end face, the length direction of insertion portion is extended with blade.
Preferably, described concave arc-shaped upper surface has the arcs of recesses of coupling condyle of femur radian.
Preferably, the lower end of described inclined end face is crossing with the lower surface of described insertion portion 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 cross section of described impact handle is greater than the cross section of described grab handle.
Preferably, described insertion portion, described grab handle and described impact handle are integrally formed.
Beneficial effect of the present invention is specifically:
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 concave arc-shaped upper surface, described insertion portion comprises first end and the second end, described the second end connects described impact handle 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, described in the upper end edge of described inclined end face, the length direction of insertion portion is extended with blade, thus first end designs (Wedged head) for ramp type, conveniently insert and play and push protection knee joint rear soft tissue effect open, blade is convenient to process hyperosteogeny, grab handle facilitates dominated by hand, insertion portion is squeezed into condyle of femur by impact handle hammer easy to use, design ingenious, simple for structure, can disposable process condyle of femur, thickness measuring device is facilitated to insert, be suitable for large-scale promotion application.
2, the described concave arc-shaped 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, thus increase the stability after inserting, suitable space is provided for thickness measuring device inserts, design ingenious, simple for structure, can disposable process condyle of femur, facilitate thickness measuring device to insert, be suitable for large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is the schematic front view of a specific embodiment of the present invention.
Fig. 2 is the schematic top plan view of the specific embodiment shown in Fig. 1.
Detailed description of the invention
In order to more clearly understand technology contents of the present invention, describe in detail especially exemplified by following examples.Should be understood that embodiment be only citing and non-limiting.
Refer to shown in Fig. 1 ~ Fig. 2, single condyle displacement condyle of femur preprocessor of the present invention comprises insertion portion 1, grab handle 2 and impact handle 3, the upper surface of described insertion portion 1 is concave arc-shaped upper surface, described insertion portion 1 comprises first end 11 and the second end 12, described the second end 12 connects described impact handle 3 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 described in the upper end edge of described inclined end face, the length direction of insertion portion 2 is extended with blade 4.
Described concave arc-shaped upper surface can have any suitable arcs of recesses, and in order to thickness measuring device can insert more matchingly, in a particular embodiment of the present invention, described concave arc-shaped upper surface has the arcs of recesses of coupling condyle of femur radian.
The lower end of described inclined end face is crossing with the lower surface of described insertion portion 1 can be line intersect also can be point intersect, when the lower end of described inclined end face is circular arc, crossing for putting with the lower surface of described insertion portion 1, can cut out inclined end face by arc head is formed; When the lower end of described inclined end face is linear, be that line is crossing with the lower surface of described insertion portion 1, inclined end face can be cut out by tack and be formed; Refer to shown in Fig. 1 and Fig. 2, in a particular embodiment of the present invention, the lower end of described inclined end face is crossing with the lower surface of described insertion portion 1 is a straight line.
Described straight line can be vertical with the length direction of described insertion portion 1, also can out of plumb, and shown in Figure 2, in a particular embodiment of the present invention, described straight line is vertical with the length direction of described insertion portion 1.
The development length of described blade 4 can be determined as required, refers to shown in Fig. 1 ~ Fig. 2, and in a particular embodiment of the present 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 be determined as required, refers to shown in Fig. 1 ~ Fig. 2, and in a particular embodiment of the present invention, the cross section of described grab handle 2 is less than the cross section of described insertion portion 1.
The size of described impact handle 3 also can be determined as required, refers to shown in Fig. 1 ~ Fig. 2, and in a particular embodiment of the present invention, the cross section of described impact handle 3 is greater than the cross section of described grab handle 2.
Described insertion portion 1, described grab handle 2 and described impact handle 3 can be that independent parts link together, also can be integrally formed, and in a particular embodiment of the present invention, described insertion portion 1, described grab handle 2 and described impact handle 3 are integrally formed.
During use; first Tibial osteotomy in operation; after Tibial osteotomy completes; insert tibial insert and single condyle displacement condyle of femur preprocessor of the present invention; specifically hold with a hand grab handle 2; first end 11 is aimed at osteotomy site and is inserted; by the ramp type of first end 11 design (Wedged head) convenient inserts and plays to push open protect the soft tissue effect of knee joint rear; blade 4 is for the treatment of hyperosteogeny; impact handle 3 described in use hammer and 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 process condyle of femur, facilitates thickness measuring device to insert, is 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 amendment 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 (7)

1. a single condyle displacement 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 concave arc-shaped upper surface, described insertion portion comprises first end and the second end, described the second end connects described impact handle 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 described in the upper end edge of described inclined end face, the length direction of insertion portion is extended with blade;
Described concave arc-shaped upper surface has the arcs of recesses of coupling condyle of femur radian.
2. single condyle displacement condyle of femur preprocessor according to claim 1, it is characterized in that, the lower end of described inclined end face is crossing with the lower surface of described insertion portion is a straight line.
3. single condyle displacement condyle of femur preprocessor according to claim 2, it is characterized in that, described straight line is vertical with the length direction of described insertion portion.
4. single condyle displacement condyle of femur preprocessor according to claim 1, it is characterized in that, the development length of described blade is no more than the lower end of described inclined end face.
5. single condyle displacement condyle of femur preprocessor according to claim 1, it is characterized in that, the cross section of described grab handle is less than the cross section of described insertion portion.
6. single condyle displacement condyle of femur preprocessor according to claim 1, it is characterized in that, the cross section of described impact handle is greater than the cross section of described grab handle.
7. single condyle displacement condyle of femur preprocessor according to claim 1, it is characterized in that, described insertion portion, described grab handle and described impact handle are integrally formed.
CN201310073551.6A 2013-03-07 2013-03-07 Unicondylar replacement femoral condyle pretreatment device Active CN103099657B (en)

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CN201310073551.6A CN103099657B (en) 2013-03-07 2013-03-07 Unicondylar replacement femoral condyle pretreatment device

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CN103099657B true CN103099657B (en) 2015-05-20

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Citations (6)

* Cited by examiner, † Cited by third party
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
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2906125B1 (en) * 2006-09-27 2009-04-17 Eric Duvillier TIBIO-FEMORAL RESECTION APPARATUS

Patent Citations (6)

* Cited by examiner, † Cited by third party
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
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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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