CN2643846Y - Decompression device of marrow cavity for ischemic necrosis of femoral head surgey - Google Patents
Decompression device of marrow cavity for ischemic necrosis of femoral head surgey Download PDFInfo
- Publication number
- CN2643846Y CN2643846Y CN 03273842 CN03273842U CN2643846Y CN 2643846 Y CN2643846 Y CN 2643846Y CN 03273842 CN03273842 CN 03273842 CN 03273842 U CN03273842 U CN 03273842U CN 2643846 Y CN2643846 Y CN 2643846Y
- Authority
- CN
- China
- Prior art keywords
- femoral head
- ischemic necrosis
- decompressor
- reduced pressure
- pulp cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a medullary cavity relieving device of ischemic necrosis of head of femur operation, which comprises a guide pin, a dilator, a distance sleeve, a pilot gage, and a reductor. An oblique angle which fits close to the surface of a shaft of femur at the back of the collum femoris is arranged at the front end of the pilot page along the radial serrated face. The front end of the reductor is provided with a plurality of hackle cutting edges, and a bone slags discharge launder is arranged along the axial direction of the working section of the reductor. Because An oblique angle which fits close to the surface of a shaft of femur at the back of the collum femoris is arranged at the front end of the pilot page along the radial serrated face, the utility model has the advantages that the guiding and positioning are more accurate in operations, which is convenient for the operations of the medical staff, while the improvement of the hackle cutting edges at the front end of the redactor and the bone slags discharge launder arranged along the axial direction of the working section of the reductor save labor in drilling and is more convenient for the collection of the bone smash, which is in favor of the afresh embedding of normal bone slags and provides a convenient, practical, and reliable device for the schemic necrosis of head of femur operation.
Description
Technical field
This utility model relates to a kind of bone surgery medical apparatus, particularly a kind of ischemic necrosis of femoral head operation pulp cavity reduced pressure appliance.
Background technology
In 1962 French physician is in research hip pain but during the normal youthful pain cause of X line, chances on when doing the biopsy of femoral head marrow core with the hollow trepan of diameter 8mm or 10mm, and these patients' hip has alleviated bitterly dramatically.Application marrow core biopsy is as a kind of Therapeutic Method so just extend out, and operation names is decided to be the core decompression art.This core decompression art is by reducing the bone inner high voltage femoral head patient's pain symptom to be removed.Its common surgical instrument that adopts comprises the guide pin of a diameter 2mm, external diameter a 0.5～1cm can pierce the hollow trepan of femur, its operation method is under C arm X-ray machine monitors, to lead fibre earlier and pierce then the hollow trepan to be enclosed within on the guide pin and to pierce to the femoral head and take out behind the 0.5cm, and remake stitching and just finish operation along guide pin to femur subchondral bone 0.5cm.The above-mentioned utensil that this operation is adopted exists because of the guide pin location is unstable influences the quality that operation is finished, and also has certain degree of difficulty simultaneously in operation.The medical worker has carried out necessary improvement by continuous practice to surgical instrument, between above-mentioned guide pin and hollow trepan, designed the dilator that matches and use with it, positioning sleeve, guider and decompressor, make the used utensil of this surgery systems obtain perfect, but when using, reality finds, because of the orienting locator front end face combine with femur be difficult to suitable, be difficult to guarantee localized when accurately causing decompressor to pierce the position produce deviation, influence the quality of finishing of operation, decompressor adopts the hollow trepan structure of normal aggregates operation usefulness in addition, not only drilling efficiency is low, concentrates nor be beneficial to osteomiosis, discharge swimmingly.
Summary of the invention
The purpose of this utility model be at above-mentioned existing problems provide a kind of locate definite, reliable, drilling is smooth and easy and the pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation of tool simple operation.
The technical solution of the utility model is: a kind of pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation, comprise guide pin, dilator, positioning sleeve, orienting locator, decompressor, the described orienting locator front end edge radial cut flank of tooth be provided with neck of femur after the oblique angle that matches of femoral shaft surface, described decompressor front end face has some zigzag cutting edges, is provided with the osteomiosis discharge launder vertically at the decompressor active section.
This utility model since adopted the setting of the orienting locator front end edge radial cut flank of tooth with neck of femur after the oblique angle that matches of burst dried surface, make guiding and location when implementing operation more definite, made things convenient for medical worker's operation, and decompressor front end zigzag is cut the improvement of sword and controlled the osteomiosis discharge launder that the decompressor active section axially is provided with, not only make drilling become more laborsaving, and make the collection of osteomiosis more convenient, help normal osteomiosis is implanted again, for ischemic femoral head ring unique skill art provides a kind of convenience, practicality, reliable utensil.
Description of drawings
Fig. 1 is this utility model orienting locator structural representation;
Fig. 2 is this utility model decompressor structural representation;
Fig. 3 is that the K of Fig. 2 is to enlarged diagram;
Fig. 4 is that this utility model positioning sleeve cooperates sketch map with orienting locator;
Fig. 5 is that this utility model guide pin cooperates sketch map with dilator.
Specific embodiment
This utility model such as Fig. 1～shown in Figure 5, a kind of pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation, comprise guide pin 1, dilator 2, positioning sleeve 3, orienting locator 4, decompressor 5, be characterized in the described orienting locator 4 front end edge radial cut flank of tooth 41 be provided with neck of femur after the oblique angle α that matches of femoral shaft surface, described decompressor front end face has some zigzag cutting edges 51, is provided with osteomiosis discharge launder 52 vertically at decompressor 5 active sections.
The further structure of this utility model is: above-mentioned orienting locator 4 front ends radially oblique angle α are 120～145 degree.In the specific implementation, above-mentioned orienting locator 4 front ends radially oblique angle α be 130 the degree.For decompressor can be pierced in the femur smooth and easy labour-saving, some zigzag cutting edges 51 of above-mentioned decompressor 5 front end settings are camber line shape.Above-mentioned decompressor active section is provided with spiral along circumference and imports sword 53.For overcoming the drilling resistance of decompressor, above-mentioned decompressor 5 active sections have hollow shaft hole 54 vertically.For making broken bone can concentrate, discharge smoothly, the communicating of above-mentioned osteomiosis discharge launder 52 with hollow shaft hole 54, its groove width is 2.5～4mm.
Claims (7)
1, a kind of pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation, comprise guide pin (1), dilator (2), positioning sleeve (3), orienting locator (4), decompressor (5), it is characterized in that described orienting locator (4) the front end edge radial cut flank of tooth (41) be provided with neck of femur after the oblique angle α that matches of femoral shaft surface, described decompressor front end face has some zigzag cutting edges (51), is provided with osteomiosis discharge launder (52) vertically at decompressor (5) active section.
2, the pulp cavity reduced pressure appliance that is used for ischemic necrosis of femoral head operation according to claim 1, it is characterized in that above-mentioned orienting locator (4) front end radially oblique angle α be 120～145 degree.
3, the pulp cavity reduced pressure appliance that is used for ischemic necrosis of femoral head operation according to claim 2, it is characterized in that above-mentioned orienting locator (4) front end radially oblique angle α be 130 degree.
4, the pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation according to claim 1 is characterized in that some zigzag cutting edges (51) that above-mentioned decompressor (5) front end is provided with are camber line shape.
5, the pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation according to claim 1 is characterized in that above-mentioned decompressor active section is provided with spiral along circumference and imports sword (53).
6, the pulp cavity reduced pressure appliance that is used for the ischemic necrosis of femoral head operation according to claim 1 is characterized in that above-mentioned decompressor (5) active section has hollow shaft hole (54) vertically.
7, according to claim 1 or the 6 described pulp cavity reduced pressure appliance that are used for the ischemic necrosis of femoral head operation, it is characterized in that communicating with hollow shaft hole (54) of above-mentioned osteomiosis discharge launder (52), its groove width is 2.5～4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273842 CN2643846Y (en) | 2003-08-26 | 2003-08-26 | Decompression device of marrow cavity for ischemic necrosis of femoral head surgey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03273842 CN2643846Y (en) | 2003-08-26 | 2003-08-26 | Decompression device of marrow cavity for ischemic necrosis of femoral head surgey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643846Y true CN2643846Y (en) | 2004-09-29 |
Family
ID=34301696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03273842 Expired - Fee Related CN2643846Y (en) | 2003-08-26 | 2003-08-26 | Decompression device of marrow cavity for ischemic necrosis of femoral head surgey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643846Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861008B (en) * | 2005-05-13 | 2010-05-05 | 中国人民解放军第一一七医院 | Intervention therapeutic apparatus for necrosis of head of femur |
| CN102579109A (en) * | 2012-03-14 | 2012-07-18 | 吴东 | Mechanical bone extractor with stop unit |
| CN110115611A (en) * | 2019-06-18 | 2019-08-13 | 复旦大学附属中山医院 | A kind of operation tool for caput femoris necrosis bone grafting |
-
2003
- 2003-08-26 CN CN 03273842 patent/CN2643846Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861008B (en) * | 2005-05-13 | 2010-05-05 | 中国人民解放军第一一七医院 | Intervention therapeutic apparatus for necrosis of head of femur |
| CN102579109A (en) * | 2012-03-14 | 2012-07-18 | 吴东 | Mechanical bone extractor with stop unit |
| CN110115611A (en) * | 2019-06-18 | 2019-08-13 | 复旦大学附属中山医院 | A kind of operation tool for caput femoris necrosis bone grafting |
| CN110115611B (en) * | 2019-06-18 | 2024-01-26 | 山东威高骨科材料股份有限公司 | Surgical tool for femoral head necrosis bone grafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040929 Termination date: 20100826 |