CN202654185U - Femoral head core decompression bit - Google Patents
Femoral head core decompression bit Download PDFInfo
- Publication number
- CN202654185U CN202654185U CN201220257719XU CN201220257719U CN202654185U CN 202654185 U CN202654185 U CN 202654185U CN 201220257719X U CN201220257719X U CN 201220257719XU CN 201220257719 U CN201220257719 U CN 201220257719U CN 202654185 U CN202654185 U CN 202654185U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- knife
- fixed cover
- handle
- core decompression
- 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
Links
- 230000006837 decompression Effects 0.000 title claims abstract description 22
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 210000002391 femur head Anatomy 0.000 claims description 15
- 210000000988 bone and bone Anatomy 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 11
- 208000007875 Femur Head Necrosis Diseases 0.000 description 10
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000001188 articular cartilage Anatomy 0.000 description 2
- 210000004394 hip joint Anatomy 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 206010007710 Cartilage injury Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 210000002082 fibula Anatomy 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 210000001621 ilium bone Anatomy 0.000 description 1
- 208000028867 ischemia Diseases 0.000 description 1
- 230000008407 joint function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 210000004409 osteocyte Anatomy 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 208000034133 primary 1 avascular necrosis of femoral head Diseases 0.000 description 1
- 230000000250 revascularization Effects 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model provides a femoral head core decompression bit. The femoral head core decompression bit comprises a bit and a fixation sleeve. The fixation sleeve has a cavity; and openings communicated with the cavity are formed in both ends of the fixation sleeve. The bit is arranged on the fixation sleeve in an eccentric way and can rotate relative to the fixation sleeve. The bit comprises a knife handle and a knife edge, wherein the knife handle is arranged in the cavity; and the width of the knife edge is not longer than the diameter of a cross section of the fixation sleeve. A housing and a stop device are in muff coupling with the external surface of the fixation sleeve. The housing can move relative to the fixation sleeve, and the stop device is arranged at one end far away from the knife edge. The fixation sleeve is provided with a fixing bolt to fix the knife handle. A handhold is arranged on the external surface of the housing. In this way, the knife edge can be adjusted to any angle according to requirements so as to enlarge a removal range, shorten operation time, increase the amount of bone planted, and reduce an operative wound. Moreover, the femoral head core decompression bit is simple to operate and convenience and safe in operation.
Description
Technical field
This utility model is medical instruments field, is specifically related to a kind of
StrandBone core decompression drill bit.
Background technology
Ischemic necrosis of femoral head (avascular necrosis of the femoral head, ANFH) be commonly encountered diseases and the frequently-occurring disease of orthopaedics, be apt to occur in person between twenty and fifty, pathological changes causes articular cartilage damage and collapse of the femoral head, finally causes the hip joint function forfeiture.The femur head necrosis that a variety of causes causes is all take the femoral head ischemia as its final pathological change, thereby how to change the local blood of femoral head and supply, promote revascularization and articular cartilage and osseous tissue to form, preserve from the body femoral head and prevent from subsiding and become the emphasis for the treatment of.Medulla decompression for treatment early ischemic necrosis of femoral head determined curative effect.The in recent years development along with the Minimally Invasive Surgery technology makes the therapeutic effect of ischemic necrosis of femoral head that very large progress arranged.
Ischemic necrosis of femoral head (ANFH) is that the femoral head blood supply that is caused by the Different types of etiopathogenises combined effect destroys, or osteocyte degeneration and then cause having the complicated pathological process of vigor composition death, becomes the commonly encountered diseases on the orthopaedics.Femur head necrosis is a kind of progressivity disease, with 20 ~ 50 years old common, if do not treated, hip joint can be destroyed fully.According to estimates, the new femur head necrosis case of the annual diagnosis of the U.S. reaches 20,000 examples.At present, 18.5% be because ischemic necrosis of femoral head in the replacement of total hip in U.S. every year.The early treatment of Avascular Necrosis Of Femur Head becomes one of the most thorny difficult problem that orthopaedics faces.At present the method for operative treatment is a lot, femoral head vertebral pulp drilling decompression, bone grafting operation, with or without rotate between free vessel pedicle fibula or Iliac Bone Grafts art, tuberosity or in the osteotomy etc. that turns up.Have more bibliographical information curative effect to differ both at home and abroad, the overwhelming majority has sure curative effect, needs long-term efficacy to remain further to be observed.Also there is different complication in various operations.How to find a kind of effectively, the method for little, the few intercurrent disease of wound, easy operating.For this present situation, the author's designed, designed has been researched and developed the operating theater instruments instrument that a cover can be used for treating early ischemic necrosis of femoral head.
The utility model content
In order to solve the problems of the technologies described above, this utility model embodiment provide a kind of easy and simple to handle, use safety the Caput femoris core decompression drill bit, described technical scheme is as follows:
The utility model proposes a kind of Caput femoris core decompression drill bit, comprise drill bit and fixed cover, described fixed cover has the inner chamber of hollow and two ends and is respectively equipped with opening with its conducting, described drill bit eccentric setting is on described fixed cover and can rotate with respect to described fixed cover, described drill bit comprises handle of a knife and blade, described handle of a knife is located in the described inner chamber, the width of described blade is not more than the diameter of described fixed cover tangent plane, described fixed cover outer surface is socketed with overcoat and stopping means, described overcoat can move with respect to described fixed cover, described stopping means is positioned at the end away from blade, described fixed cover is provided with set bolt with fixing described handle of a knife, and described overcoat outer surface is provided with handle.
Preferential as technique scheme, stopping means comprises swivel nut and nut, and described swivel nut surface is provided with at least one opening, and described nut thread is connected in the swivel nut outer surface to tighten up described opening.
Preferential as technique scheme, described blade is curved
Preferential as technique scheme, described handle of a knife and set bolt coupling part tangent plane are polygon.
Preferential as technique scheme, described handle of a knife end tangent plane is polygon.
Preferential as technique scheme, described handle of a knife end connects power part, thinks that described drill bit provides power.
Preferential as technique scheme, described handle of a knife end connects Manual bar pull.
Preferential as technique scheme, described handle of a knife connects power part by adapter sleeve.
Preferential as technique scheme, described blade radian is specially 45 degree.
A kind of Caput femoris core decompression drill bit that the utility model proposes, comprise drill bit and fixed cover, described fixed cover has the inner chamber of hollow and two ends and is respectively equipped with opening with its conducting, described drill bit eccentric setting is on described fixed cover and can rotate with respect to described fixed cover, described drill bit comprises handle of a knife and blade, described handle of a knife is located in the described inner chamber, the width of described blade is not more than the diameter of described fixed cover tangent plane, described fixed cover outer surface is socketed with overcoat and stopping means, described overcoat can move with respect to described fixed cover, described stopping means is positioned at the end away from blade, described fixed cover is provided with set bolt with fixing described handle of a knife, and described overcoat outer surface is provided with handle.Like this, blade can be adjusted arbitrarily angled as required, increases the removing scope, makes the surgical operation time shorten, and the bone grafting amount increases, and operation wound reduces, and easy and simple to handle, convenient and safe.
Description of drawings
In order to be illustrated more clearly in the technical scheme among this utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that the master of the Caput femoris core decompression drill bit that provides among this utility model embodiment looks cutaway view;
Fig. 2 is that the P of Fig. 1 is to view;
Fig. 3 is that the A-A of Fig. 1 is to view;
Fig. 4 is that the B-B of Fig. 1 is to view;
Fig. 5 is that the swivel nut master who provides among this utility model embodiment looks cutaway view;
Fig. 6 is that the adapter sleeve master who provides among this utility model embodiment looks cutaway view.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing this utility model embodiment is described in further detail.
Embodiment
The utility model proposes a kind of Caput femoris core decompression drill bit, as shown in Figure 1, comprise drill bit and fixed cover 2, described fixed cover 2 has the inner chamber of hollow and two ends and is respectively equipped with opening 9 with its conducting, 10, described drill bit eccentric setting is on described fixed cover 2 and can rotate with respect to described fixed cover 2, described drill bit comprises handle of a knife and blade 1, described handle of a knife is located in the described inner chamber, the width of described blade 1 is not more than the diameter of described fixed cover 2 tangent planes, described blade is curved, concrete 45 degree of its radian, so that the removing scope of blade is similar circle, described fixed cover 2 outer surfaces are socketed with overcoat 3 and stopping means, described overcoat 3 can move with respect to described fixed cover 2, described stopping means is positioned at the end away from blade 1, and described fixed cover 2 is provided with set bolt 7 with fixing described handle of a knife, and described overcoat 3 outer surfaces are provided with handle 4.
Concrete, described stopping means comprises swivel nut 6 and nut 5, and as shown in Figure 5, described swivel nut 6 surfaces are provided with at least one opening 11, and described nut 5 is threadedly connected to swivel nut 6 outer surfaces to tighten up described opening 11, holds fixed cover 2 tightly, thus the position of fixed jacket 3.
As shown in Figure 4, described handle of a knife and set bolt coupling part tangent plane are polygon, like this, when operation, can adjust more accurately the angle of blade 1, and more easily locking.
As shown in Figure 3, described handle of a knife end tangent plane is polygon, and described handle of a knife end connects power part by adapter sleeve 12 and thinks that described drill bit provides power, or the connection Manual bar pull carries out manually to power.
During use, blade 1 is adjusted to the angle that needs, locks by set bolt 7, overcoat 3 is adjusted card to suitable position, fix by stopping means, handle of a knife connects power part, carry out operation technique, described opening 9,10 can make the necrotic bone tissue of removing discharge along inner chamber.Can adjust arbitrarily as required the angle of blade 1, increase and remove area, make the surgical operation time shorten, the bone grafting amount increases, and operation wound reduces, and easy to operate, uses safety.
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment this utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (9)
1. Caput femoris core decompression drill bit, it is characterized in that, comprise drill bit and fixed cover, described fixed cover has the inner chamber of hollow and two ends and is respectively equipped with opening with its conducting, described drill bit eccentric setting is on described fixed cover and can rotate with respect to described fixed cover, described drill bit comprises handle of a knife and blade, described handle of a knife is located in the described inner chamber, the width of described blade is not more than the diameter of described fixed cover tangent plane, described fixed cover outer surface is socketed with overcoat and stopping means, described overcoat can move with respect to described fixed cover, described stopping means is positioned at the end away from blade, described fixed cover is provided with set bolt with fixing described handle of a knife, and described overcoat outer surface is provided with handle.
2. described Caput femoris core decompression drill bit according to claim 1 is characterized in that, stopping means comprises swivel nut and nut, and described swivel nut surface is provided with at least one opening, and described nut thread is connected in the swivel nut outer surface to tighten up described opening.
3. described Caput femoris core decompression drill bit according to claim 1 is characterized in that, described blade is curved.
4. described Caput femoris core decompression drill bit according to claim 1 is characterized in that, described handle of a knife and set bolt coupling part tangent plane are polygon.
5. described Caput femoris core decompression drill bit according to claim 1 is characterized in that, described handle of a knife end tangent plane is polygon.
6. described Caput femoris core decompression drill bit according to claim 4 is characterized in that, described handle of a knife end connects power part, thinks that described drill bit provides power.
7. described Caput femoris core decompression drill bit according to claim 4 is characterized in that, described handle of a knife end connects Manual bar pull.
8. described Caput femoris core decompression drill bit according to claim 5 is characterized in that, described handle of a knife connects power part by adapter sleeve.
9. described Caput femoris core decompression drill bit according to claim 3 is characterized in that, described blade radian is specially 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220257719XU CN202654185U (en) | 2012-06-04 | 2012-06-04 | Femoral head core decompression bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220257719XU CN202654185U (en) | 2012-06-04 | 2012-06-04 | Femoral head core decompression bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202654185U true CN202654185U (en) | 2013-01-09 |
Family
ID=47449137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220257719XU Expired - Fee Related CN202654185U (en) | 2012-06-04 | 2012-06-04 | Femoral head core decompression bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202654185U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688081A (en) * | 2012-06-04 | 2012-09-26 | 刘新平 | Femoral head medulla core decompression drill bit |
| CN105011983A (en) * | 2015-08-18 | 2015-11-04 | 张为 | Bone drill capable of directionally drilling bone on articular process |
| CN107595356A (en) * | 2017-09-21 | 2018-01-19 | 中国人民解放军总医院 | Removing device and scraping methods |
-
2012
- 2012-06-04 CN CN201220257719XU patent/CN202654185U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102688081A (en) * | 2012-06-04 | 2012-09-26 | 刘新平 | Femoral head medulla core decompression drill bit |
| CN105011983A (en) * | 2015-08-18 | 2015-11-04 | 张为 | Bone drill capable of directionally drilling bone on articular process |
| CN105011983B (en) * | 2015-08-18 | 2017-12-29 | 张为 | It is a kind of can in articular process Directional Drilling bone bone drill |
| CN107595356A (en) * | 2017-09-21 | 2018-01-19 | 中国人民解放军总医院 | Removing device and scraping methods |
| CN107595356B (en) * | 2017-09-21 | 2021-01-22 | 中国人民解放军总医院 | Scraping device and scraping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEBEI GAOGONG TOOL CO., LTD. Free format text: FORMER OWNER: LIU XINPING Effective date: 20130903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130903 Address after: 052160, No. 68, Dongcheng South Street, Gaocheng, Hebei, Shijiazhuang Patentee after: Hebei Gaogong Tool Co., Ltd. Address before: 052160, No. 68, Dongcheng South Street, Gaocheng, Hebei, Shijiazhuang Patentee before: Liu Xinping |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150604 |
|
| EXPY | Termination of patent right or utility model |