CN102805657A - Medullary cavity file for combined hip joint replacement operation - Google Patents
Medullary cavity file for combined hip joint replacement operation Download PDFInfo
- Publication number
- CN102805657A CN102805657A CN2012101376592A CN201210137659A CN102805657A CN 102805657 A CN102805657 A CN 102805657A CN 2012101376592 A CN2012101376592 A CN 2012101376592A CN 201210137659 A CN201210137659 A CN 201210137659A CN 102805657 A CN102805657 A CN 102805657A
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- file
- guide post
- cavity
- file body
- replacement operation
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- Surgical Instruments (AREA)
Abstract
The invention discloses a medullary cavity file for combined hip joint replacement operation and relates to the field of medical operative instruments. The medullary cavity file can be used for the cutting of the cancellous bone of the thighbone medullary cavity in the human hip joint replacement operation and mainly comprises a positioning handle, a guide rod, a file body and a beating device, wherein the positioning handle is used for determining a cutting guide path, the guide rod is used for guiding the file body to cut the cancellous bone of the thighbone cavity along the determined guide path, and the beating device is used for beating the file body to cut the cancellous bone of the thighbone cavity.
Description
Technical field
The present invention relates to the medical surgical instrument field, especially a kind of femoral cavity cutting element that can be used for hip replacement surgery.
Background technology
At present, in the hip replacement surgery that adopts standard type artificial hip joint femoral shaft prosthese, the pulp cavity tang portion of cutting patient femoral cavity is generally longer.In with pulp cavity file cutting patient femoral cavity process, pulp cavity file far-end can clash into extruding patient femoral cavity inwall, advances patient's femoral cavity through the progressively filing that stops of patient's femoral cavity inwall, the final cutting of accomplishing patient's femoral cavity.Because stopping of patient's femoral cavity inwall, pulp cavity file cutting resistance is bigger.In addition, pulp cavity file far-end and near-end can cause the generation of patient (particularly osteoporosis type patient) femur bone splits phenomenon to femoral cavity extruding and bump.
Summary of the invention
The object of the present invention is to provide knockdown pulp cavity to make smooth with a file system; Cut patient's femoral cavity through the guiding of the guide rod in this system pulp cavity file body along certain orientation; Resistance when reducing the cutting of pulp cavity file; Prevent pulp cavity file bump extruding patient femoral cavity, avoid the generation of patient's femur bone splits phenomenon.
A kind of modular hip prosthesis replacement operation with pulp cavity file technical scheme is: mainly comprise positioning handle, guide rod, file body, pounder.Draft pulp cavity file cutting guide passage through positioning handle, positioning handle is similar with pulp cavity file far-end shank shape at present commonly used, has the different specifications model, selects for use according to patient's femur situation in the operation process, also can customize.Guide rod is an elongate rod, and guide rod links to each other with positioning handle.The file body can be chosen from different specifications and models, also can be according to the customization of type femoral bone end prosthesis planform, and the file body surface has cutting blade, and there is a through hole centre.In the operation process, the file body is installed on the guide rod through through hole, and the file body can move along guide rod and cut patient's femoral cavity.Pounder knocks the file body in operation process, accomplish the cutting to patient's femoral cavity.
Beneficial effect of the present invention: through positioning handle being stretched into the guide passage of drafting out cutting patient femoral cavity in patient's femoral cavity; With guide rod guiding file body cutting patient femoral cavity; The pulp cavity file just can not clash into extruding patient femoral cavity like this; Reduce cutting resistance effectively, avoid pulp cavity file bump patient femoral cavity to cause the bone splits of patient's femur.This combination type pulp cavity file structure also can be used in and can directly implant in the customization type hip replacement surgery of patient's femoral cavity along straight line; The assisting operation doctor confirms pulp cavity file cutting guide passage; Make the customization type type femoral bone end prosthesis can disposable implantation success, guarantee the matching degree of customization type type femoral bone end prosthesis and patient's femoral bone cavitas medullaris.
Description of drawings
Fig. 1 is the embodiment of the invention
OnePlant the modular hip prosthesis replacement operation and make smooth with a file structural representation with pulp cavity
Wherein: the 1-block, the 2-guide post, the 3-pounder, 4-makes smooth with a file body, 5-positioning handle.
The specific embodiment
Below with reference to the drawings embodiments of the invention described one for the further step:
OneIt is as shown in Figure 1 with the exemplary plot of pulp cavity file structure to plant the modular hip prosthesis replacement operation, mainly comprises: block 1, guide post 2, pounder 3, file body 4, positioning handle 5; Positioning handle 5 adopts the fast disassembly type thread connection with the guide post 2 of guiding file body, and positioning handle 5 is selected for use or customized according to patient's femur situation; File body 4 surfaces have cutting blade, and adopt matched in clearance between the guide post 2, and file body 4 is selected for use or customized according to the femoral hip stem prosthese that adopts in the operation; Be used to knock pounder 3 skies of making smooth with a file body 4 and be enclosed within guide post 2; Block 1 is installed in guide post 2 tail ends, prevents that pounder 3 breaks away from guide post 2 when knocking file body 4.
The work process and the principle of cutting navigator are: before hip replacement surgery, select suitable file body 4 and positioning handle 5, modular hip prosthesis replacement operation of the present invention is assembled by shown in Figure 1 with pulp cavity file system, and carry out corresponding cleaning-sterilizing and handle.In the operation process; Accomplish when cutting bone, expose patient's femoral cavity after, the positioning handle 5 of aid front end of the present invention is stretched in patient's femoral cavity; After having good positioning; According to the patient's femoral cavity cross sectional shape that exposes, adjust file body 4 after, operative doctor just can be relievedly knock with pounder 3 makes smooth with a file body 4 with the cutting of completion to patient's femoral cavity.
Embodiment two: the guide post 2 among the embodiment one can be two parts of same part with positioning handle 5, and front end is used for locating, and the rear end is used for guiding the cutting of file body to patient's femoral cavity.
Claims (3)
1. a modular hip prosthesis replacement operation is made smooth with a file with pulp cavity, it is characterized in that: comprise block (1), positioning handle (5), guide post (2), file body (3) and pounder (4); Said positioning handle 5 adopts the fast disassembly type thread connection with the guide post (2) of guiding file body, and guide post (2) links to each other with positioning handle (5); File body (4) surface has cutting blade, has a through hole to be enclosed within on the guide post (2) in the middle of the file body (4), and matched in clearance between the guide post (2), is positioned at the middle part of guide post (2); Be used to knock pounder (3) sky of making smooth with a file body (4) and be enclosed within guide post (2); Block (1) is installed in guide post (2) tail end.
2. a kind of modular hip prosthesis replacement operation according to claim 1 is made smooth with a file with pulp cavity; It is characterized in that: said positioning handle (1) has the different specifications model, before hip replacement surgery, chooses or customizes according to type femoral bone end prosthesis or patient's femoral cavity shape.
3. a kind of modular hip prosthesis replacement operation according to claim 1 is made smooth with a file with pulp cavity, it is characterized in that: said file body (4) is chosen from different specifications and models, or customizes according to the type femoral bone end prosthesis planform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101376592A CN102805657A (en) | 2012-05-07 | 2012-05-07 | Medullary cavity file for combined hip joint replacement operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101376592A CN102805657A (en) | 2012-05-07 | 2012-05-07 | Medullary cavity file for combined hip joint replacement operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102805657A true CN102805657A (en) | 2012-12-05 |
Family
ID=47229648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101376592A Pending CN102805657A (en) | 2012-05-07 | 2012-05-07 | Medullary cavity file for combined hip joint replacement operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102805657A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300905A (en) * | 2013-06-21 | 2013-09-18 | 江苏大学 | Distal and proximal positioning combined probe for selecting cutting guide of marrow cavity file |
| CN103932767A (en) * | 2014-04-21 | 2014-07-23 | 南京大学医学院附属鼓楼医院 | Medical forming device for gristle transplanting receptor spongy bone bed |
| CN107397572A (en) * | 2017-07-26 | 2017-11-28 | 北京市春立正达医疗器械股份有限公司 | Expand marrow reamer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549319A (en) * | 1982-08-03 | 1985-10-29 | United States Medical Corporation | Artificial joint fixation to bone |
| US5766261A (en) * | 1996-02-01 | 1998-06-16 | Osteonics Corp. | Femoral revision broach with modular trial components and method |
| US20050234462A1 (en) * | 2004-01-05 | 2005-10-20 | Hershberger Troy W | Method and instrumentation for performing minimally invasive hip arthroplasty |
| CN201104933Y (en) * | 2007-10-26 | 2008-08-27 | 刘好源 | Rolling weight type hollow pith rasp |
-
2012
- 2012-05-07 CN CN2012101376592A patent/CN102805657A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4549319A (en) * | 1982-08-03 | 1985-10-29 | United States Medical Corporation | Artificial joint fixation to bone |
| US5766261A (en) * | 1996-02-01 | 1998-06-16 | Osteonics Corp. | Femoral revision broach with modular trial components and method |
| US20050234462A1 (en) * | 2004-01-05 | 2005-10-20 | Hershberger Troy W | Method and instrumentation for performing minimally invasive hip arthroplasty |
| US7854769B2 (en) * | 2004-01-05 | 2010-12-21 | Biomet Manufacturing Corp. | Method and instrumentation for performing minimally invasive hip arthroplasty |
| CN201104933Y (en) * | 2007-10-26 | 2008-08-27 | 刘好源 | Rolling weight type hollow pith rasp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300905A (en) * | 2013-06-21 | 2013-09-18 | 江苏大学 | Distal and proximal positioning combined probe for selecting cutting guide of marrow cavity file |
| CN103932767A (en) * | 2014-04-21 | 2014-07-23 | 南京大学医学院附属鼓楼医院 | Medical forming device for gristle transplanting receptor spongy bone bed |
| CN103932767B (en) * | 2014-04-21 | 2016-08-24 | 南京大学医学院附属鼓楼医院 | Medical cartilage transplantation receptor spongy bone bed former |
| CN107397572A (en) * | 2017-07-26 | 2017-11-28 | 北京市春立正达医疗器械股份有限公司 | Expand marrow reamer |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121205 |