CN102688081A - Femoral head medulla core decompression drill bit - Google Patents
Femoral head medulla core decompression drill bit Download PDFInfo
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- CN102688081A CN102688081A CN201210179470XA CN201210179470A CN102688081A CN 102688081 A CN102688081 A CN 102688081A CN 201210179470X A CN201210179470X A CN 201210179470XA CN 201210179470 A CN201210179470 A CN 201210179470A CN 102688081 A CN102688081 A CN 102688081A
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- drill bit
- handle
- femoral head
- fixed cover
- blade
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Abstract
The invention provides a femoral head medulla core decompression drill bit, comprising a drill bit and a fixed sleeve. The fixed sleeve is provided with a hollow cavity and the two ends are respectively provided with an opening communicated with the fixed sleeve; the drill bit is eccentrically arranged on the fixed sleeve and capable of rotating relative to the fixed sleeve; the drill bit comprises a knife handle and a blade, wherein the knife handle is arranged in the cavity and the width of the blade is not greater than the diameter of the section of the fixed sleeve; an outer sleeve and a limiting device are sleeved on the outer surface of the fixed sleeve; the outer sleeve can move relative to the fixed sleeve; the limiting device is arranged at one end away from the blade; the fixed sleeve is provided with a fixed bolt for fixing the knife handle; and the outer surface of the outer sleeve is provided with a handle. Thus, the angle of the blade can be adjusted according to the requirement so as to enlarge the eliminating range, shorten the operation time, increase the bone grafting amount and decrease the operation wound; and besides, the operation is simple, convenient and safe.
Description
Technical field
The present invention is a medical instruments field, is specifically related to a kind of femoral head core decompression drill bit.
Background technology
Ischemic necrosis of femoral head (avascular necrosis of the femoral head ANFH) is the commonly encountered diseases and the frequently-occurring disease of orthopaedics, good sending out in person between twenty and fifty, and pathological changes causes articular cartilage to be destroyed and collapse of the femoral head, finally causes the hip joint function forfeiture.The femur head necrosis that a variety of causes caused is its final pathological change with the femoral head ischemia all; Thereby how to change the local blood of femoral head and supply; Promote revascularization and articular cartilage and osseous tissue to form, preserving from the body femoral head and preventing to subside has become the emphasis of treatment.Medulla decompression for treatment early ischemic necrosis of femoral head determined curative effect.Development along with the Minimally Invasive Surgery technology in recent years makes the therapeutic effect of ischemic necrosis of femoral head that very big 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 the complicated pathological process that has the vigor composition dead, becomes the commonly encountered diseases on the orthopaedics.Femur head necrosis is a kind of progressivity disease, and to see 20 ~ 50 years old, if do not treat, hip joint can be destroyed fully more.According to estimates, the New Development femur head necrosis case of the annual diagnosis of the U.S. reaches 20,000 examples.At present, 18.5% be in the annual replacement of total hip of the U.S. because ischemic necrosis of femoral head.The early treatment of ANFH 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 boring decompression, bone grafting operation, band be not with free vessel pedicle fibula or ilium transplantation, tuberosity between rotation 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, wound is little, complication is few, the method for easy operating.To this present situation, the author designs the operating theater instruments instrument that a cover can be used for treating early ischemic necrosis of femoral head of having researched and developed voluntarily.
Summary of the invention
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of femoral head core decompression drill bit easy and simple to handle, safe in utilization, and said technical scheme is following:
The present invention proposes a kind of femoral head core decompression drill bit; Comprise drill bit and fixed cover, inner chamber and the two ends that said fixed cover has hollow are respectively equipped with the opening with its conducting, and said drill bit off-centre is arranged on the said fixed cover and can rotates with respect to said fixed cover; Said drill bit comprises handle of a knife and blade; Said handle of a knife is located in the said inner chamber, and the width of said blade is not more than the diameter of said fixed cover tangent plane, and said fixed cover outer surface is socketed with overcoat and stopping means; Said overcoat can move with respect to said fixed cover; Said stopping means is positioned at the end away from blade, and said fixed cover is provided with set bolt with fixing said handle of a knife, and said overcoat outer surface is provided with handle.
Preferential as technique scheme, stopping means comprises swivel nut and nut, and said swivel nut surface is provided with at least one opening, and said nut thread is connected in the swivel nut outer surface to tighten up said opening.
Preferential as technique scheme, said blade is curved
Preferential as technique scheme, said handle of a knife and set bolt coupling part tangent plane are polygon.
Preferential as technique scheme, said handle of a knife end tangent plane is polygon.
Preferential as technique scheme, said handle of a knife end connects power part, thinks that said drill bit provides power.
Preferential as technique scheme, the moving thick stick of pulling of said handle of a knife end connection hand.
Preferential as technique scheme, said handle of a knife connects power part through adapter sleeve.
Preferential as technique scheme, said blade radian is specially 45 degree.
A kind of femoral head core decompression drill bit that the present invention proposes; Comprise drill bit and fixed cover, inner chamber and the two ends that said fixed cover has hollow are respectively equipped with the opening with its conducting, and said drill bit off-centre is arranged on the said fixed cover and can rotates with respect to said fixed cover; Said drill bit comprises handle of a knife and blade; Said handle of a knife is located in the said inner chamber, and the width of said blade is not more than the diameter of said fixed cover tangent plane, and said fixed cover outer surface is socketed with overcoat and stopping means; Said overcoat can move with respect to said fixed cover; Said stopping means is positioned at the end away from blade, and said fixed cover is provided with set bolt with fixing said handle of a knife, and said overcoat outer surface is provided with handle.Like this, blade can be adjusted arbitrarily angled as required, increases the removing scope, and the surgical operation time is shortened, 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 in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the master of the femoral head core decompression drill bit that provides in the embodiment of the invention 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 in the embodiment of the invention looks cutaway view;
Fig. 6 is that the adapter sleeve master who provides in the embodiment of the invention looks cutaway view.
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Embodiment
The present invention proposes a kind of femoral head core decompression drill bit, and is as shown in Figure 1, comprises drill bit and fixed cover 2; Inner chamber and the two ends that said fixed cover 2 has hollow are respectively equipped with the opening 9,10 with its conducting, and said drill bit off-centre is arranged on the said fixed cover 2 and can rotates with respect to said fixed cover 2, and said drill bit comprises handle of a knife and blade 1; Said handle of a knife is located in the said inner chamber; The width of said blade 1 is not more than the diameter of said fixed cover 2 tangent planes, and said blade is curved, concrete 45 degree of its radian; So that the removing scope of blade is similar circle; Said fixed cover 2 outer surfaces are socketed with overcoat 3 and stopping means, and said overcoat 3 can move with respect to said fixed cover 2, and said stopping means is positioned at the end away from blade 1; Said fixed cover 2 is provided with set bolt 7 with fixing said handle of a knife, and said overcoat 3 outer surfaces are provided with handle 4.
Concrete, said stopping means comprises swivel nut 6 and nut 5, and is as shown in Figure 5, and said swivel nut 6 surfaces are provided with at least one opening 11, and said nut 5 is threadedly connected to swivel nut 6 outer surfaces to tighten up said opening 11, holds fixed cover 2 tightly, thus the position of fixed jacket 3.
As shown in Figure 4, said handle of a knife and set bolt coupling part tangent plane are polygon, like this, when operation, can adjust the angle of blade 1 more accurately, and locking more easily.
As shown in Figure 3, said handle of a knife end tangent plane is polygon, and said handle of a knife end connects power parts through adapter sleeve 12 and thinks that said drill bit provides power, or connects and manually pull thick stick and carry out manually giving power.
During use, blade 1 is adjusted to the angle that needs, locks through set bolt 7; Suitable position is demonstrate,proved in overcoat 3 adjustment, fixed through stopping means, handle of a knife connects power part; The operation that undergos surgery, said opening 9,10 can make the necrotic bone tissue of removing discharge along inner chamber.Can adjust the angle of blade 1 as required arbitrarily, increase and remove area, the surgical operation time is shortened, the bone grafting amount increases, and operation wound reduces, and easy to operate, and is safe in utilization.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, 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 put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (9)
1. a femoral head core decompression drill bit is characterized in that, comprises drill bit and fixed cover; Inner chamber and the two ends that said fixed cover has hollow are respectively equipped with the opening with its conducting; Said drill bit off-centre is arranged on the said fixed cover and can rotates with respect to said fixed cover, and said drill bit comprises handle of a knife and blade, and said handle of a knife is located in the said inner chamber; The width of said blade is not more than the diameter of said fixed cover tangent plane; Said fixed cover outer surface is socketed with overcoat and stopping means, and said overcoat can move with respect to said fixed cover, and said stopping means is positioned at the end away from blade; Said fixed cover is provided with set bolt with fixing said handle of a knife, and said overcoat outer surface is provided with handle.
2. said femoral head core decompression drill bit according to claim 1 is characterized in that stopping means comprises swivel nut and nut, and said swivel nut surface is provided with at least one opening, and said nut thread is connected in the swivel nut outer surface to tighten up said opening.
3. said femoral head core decompression drill bit according to claim 1 is characterized in that said blade is curved.
4. said femoral head core decompression drill bit according to claim 1 is characterized in that said handle of a knife and set bolt coupling part tangent plane are polygon.
5. said femoral head core decompression drill bit according to claim 1 is characterized in that said handle of a knife end tangent plane is polygon.
6. said femoral head core decompression drill bit according to claim 4 is characterized in that, said handle of a knife end connects power part, thinks that said drill bit provides power.
7. said femoral head core decompression drill bit according to claim 4 is characterized in that, the moving thick stick of pulling of said handle of a knife end connection hand.
8. said femoral head core decompression drill bit according to claim 5 is characterized in that, said handle of a knife connects power part through adapter sleeve.
9. said femoral head core decompression drill bit according to claim 3 is characterized in that, said blade radian is specially 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179470XA CN102688081A (en) | 2012-06-04 | 2012-06-04 | Femoral head medulla core decompression drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179470XA CN102688081A (en) | 2012-06-04 | 2012-06-04 | Femoral head medulla core decompression drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102688081A true CN102688081A (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210179470XA Pending CN102688081A (en) | 2012-06-04 | 2012-06-04 | Femoral head medulla core decompression drill bit |
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| Country | Link |
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| CN (1) | CN102688081A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908133A (en) * | 2012-11-12 | 2013-02-06 | 合肥优尔电子科技有限公司 | Esophagus vein blood pressure measuring instrument |
| CN103054634A (en) * | 2012-12-13 | 2013-04-24 | 章亚东 | Meniscus transplanting bone bolt fixing technology and device |
| CN106725749A (en) * | 2017-02-17 | 2017-05-31 | 湖南博科生物技术有限公司 | The micro-bistoury of changeable blade and regulation blade angle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055025U (en) * | 1989-01-14 | 1990-03-28 | 张建 | Adjustable safety cranium drill operated by hand |
| US6022354A (en) * | 1998-12-04 | 2000-02-08 | Mercuri; Gregory M. | Bone harvesting collection and delivery system |
| CN2469895Y (en) * | 2001-03-21 | 2002-01-09 | 王玉山 | Sneak-dilating decompressor for head of femur |
| US6565587B1 (en) * | 2000-08-07 | 2003-05-20 | Richard Wolf Gmbh | Cutter for removing tissue |
| CN2555785Y (en) * | 2002-06-04 | 2003-06-18 | 周松 | Femoral head puplp core decompression bone grafting device |
| CN2689900Y (en) * | 2004-03-01 | 2005-04-06 | 赵铭 | Eccentric enlarger |
| CN201394046Y (en) * | 2009-04-29 | 2010-02-03 | 李庆波 | Eccentric amplifier |
| CN202654185U (en) * | 2012-06-04 | 2013-01-09 | 刘新平 | Femoral head core decompression bit |
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2012
- 2012-06-04 CN CN201210179470XA patent/CN102688081A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2055025U (en) * | 1989-01-14 | 1990-03-28 | 张建 | Adjustable safety cranium drill operated by hand |
| US6022354A (en) * | 1998-12-04 | 2000-02-08 | Mercuri; Gregory M. | Bone harvesting collection and delivery system |
| US6565587B1 (en) * | 2000-08-07 | 2003-05-20 | Richard Wolf Gmbh | Cutter for removing tissue |
| CN2469895Y (en) * | 2001-03-21 | 2002-01-09 | 王玉山 | Sneak-dilating decompressor for head of femur |
| CN2555785Y (en) * | 2002-06-04 | 2003-06-18 | 周松 | Femoral head puplp core decompression bone grafting device |
| CN2689900Y (en) * | 2004-03-01 | 2005-04-06 | 赵铭 | Eccentric enlarger |
| CN201394046Y (en) * | 2009-04-29 | 2010-02-03 | 李庆波 | Eccentric amplifier |
| CN202654185U (en) * | 2012-06-04 | 2013-01-09 | 刘新平 | Femoral head core decompression bit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102908133A (en) * | 2012-11-12 | 2013-02-06 | 合肥优尔电子科技有限公司 | Esophagus vein blood pressure measuring instrument |
| CN103054634A (en) * | 2012-12-13 | 2013-04-24 | 章亚东 | Meniscus transplanting bone bolt fixing technology and device |
| CN103054634B (en) * | 2012-12-13 | 2015-04-08 | 章亚东 | Meniscus transplanting bone bolt fixing technology and device |
| CN106725749A (en) * | 2017-02-17 | 2017-05-31 | 湖南博科生物技术有限公司 | The micro-bistoury of changeable blade and regulation blade angle |
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Application publication date: 20120926 |