CN201394046Y - Eccentric amplifier - Google Patents
Eccentric amplifier Download PDFInfo
- Publication number
- CN201394046Y CN201394046Y CN2009200216918U CN200920021691U CN201394046Y CN 201394046 Y CN201394046 Y CN 201394046Y CN 2009200216918 U CN2009200216918 U CN 2009200216918U CN 200920021691 U CN200920021691 U CN 200920021691U CN 201394046 Y CN201394046 Y CN 201394046Y
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- CN
- China
- Prior art keywords
- eccentric
- drill rod
- drilling rod
- drill bit
- amplifier
- 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 discloses an eccentric amplifier which relates to the technical field of medical appliances for orthopaedics. The eccentric amplifier comprises a drill rod and a hollow drill rod sleeve, wherein one end of a drill rod sleeve opposite to a drill bit is provided with a handle; the tail end of the drill rod is connected with the drill bit; and the drill rod is hinged with the drillbit. The drill bit is a cutter blade in order to improve the eliminating effect. The cutter blade is hinged on the front end of the drill rod of the eccentric amplifier. When in use, the cutter bladeis thrown away under the action of the centrifugal force, and is approximately in a transversal state, so the elimination range of necrotic tissues is enlarged. When beginning to enter a work hole, the eccentric amplifier can be retracted into the drill rod sleeve, and can conveniently enter the work hole without enlarging the diameter of the work hole, so the operation is convenient.
Description
Technical field
This utility model relates to the orthopaedics technical field of medical instruments, relates in particular to a kind of eccentric expander.
Background technology
Bone surgery treatment ischemic necrosis of femoral head will be rejected tissue downright bad in the bone with bone drill, inserts normal bone tissues.In order to guarantee therapeutic effect, the tissue of necrosis all must be removed, this will enlarge the removing scope of downright bad tissue, and common way is to strengthen the diameter of rod bit.Though the tissue of necrosis all can be removed with the method that strengthens the rod bit diameter, will inevitably damage normal skeleton too much, reduce the intensity of skeleton, bring secondary face to ring to the patient.There is the people that existing drill bit is improved for this reason, disclosed by utility model patent Zhao Ming, Lu Miaoqi design, that the patent No. is 200420038829.2, name is called eccentric expander as State Intellectual Property Office on April 6th, 2005, its drilling rod also is provided with a drilling rod cover outward, the inner chamber of this drilling rod cover is eccentric inner chamber, drilling rod passes from the eccentric inner chamber of drilling rod cover, matched in clearance between drilling rod and the drilling rod cover, drill bit along the trend of drilling rod to a lateral buckling and with the angle of cut of drilling rod be the obtuse angle, an end that deviates from drill bit at the drilling rod cover is provided with handgrip.During use, an end of drilling rod not being established drill bit is packed on the electric hand drill, in the operation process, electric hand drill drives drilling rod and rotates, and drill bit rotates synchronously with drilling rod and since drill bit along the trend of drilling rod to a lateral buckling, the track plane that drill bit rotates is just big, thereby the scope of drill bit removing necrotic bone is just big.Do not increase though its shortcoming is the diameter of drill bit, because of its front end to a lateral buckling, be difficult for putting in the working hole inconvenient operation.
Summary of the invention
The purpose of this utility model provides a kind of drill bit and easily puts in interior, the easy to operate eccentric expander of working hole.
The technical scheme that this utility model is adopted for achieving the above object is:
A kind of eccentric expander comprises drilling rod, hollow drill cover, and the end that the drilling rod cover deviates from drill bit is provided with handgrip, and the end of drilling rod is connected with drill bit, it is characterized in that: described drilling rod and drill bit are hinged.
In order to improve the removing effect, described drill bit is a blade.
Eccentric expander of the present utility model, front end at drilling rod is hinged with blade, blade is thrown away the state that roughly is horizontal during use under action of centrifugal force, therefore enlarged the removing scope of slough, and when initially entering working hole, in the drilling rod of it can the being withdrawn cover, the diameter that need not enlarge working hole can enter working hole easily, and is easy to operate.
Description of drawings
Accompanying drawing is the sketch map of the eccentric expander of this utility model.
Among the figure: 1-blade, 2-drilling rod, 3-drilling rod cover, 4-handgrip, 5-electric hand drill.
The specific embodiment
Accompanying drawing is the sketch map of a kind of specific embodiment of the eccentric expander of this utility model, this off-centre expander is hinged with blade 1 at the front end of drilling rod 2, be provided with handgrip 4 at hollow drill cover 3 ends that deviate from drill bit, during use, drilling rod is connected on the electric hand drill 5, the electric drill 5 of shaking hands on the other hand, another holds the handgrip 4 of drilling rod cover 3, blade is remained in the drilling rod cover 3, after drilling rod 2 is being with blade 1 to enter working hole, will push away before the electric hand drill 5, blade 1 is stretched out from drilling rod cover 3, open electric hand drill, then blade 1 is thrown away under action of centrifugal force and is transverse state, realizes the large clearing to slough.
Claims (2)
1, a kind of eccentric expander comprises drilling rod, hollow drill cover, and the end that the drilling rod cover deviates from drill bit is provided with handgrip, and the end of drilling rod is connected with drill bit, it is characterized in that: described drilling rod and drill bit are hinged.
2, eccentric expander according to claim 1 is characterized in that: described drill bit is a blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200216918U CN201394046Y (en) | 2009-04-29 | 2009-04-29 | Eccentric amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200216918U CN201394046Y (en) | 2009-04-29 | 2009-04-29 | Eccentric amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201394046Y true CN201394046Y (en) | 2010-02-03 |
Family
ID=41616531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200216918U Expired - Fee Related CN201394046Y (en) | 2009-04-29 | 2009-04-29 | Eccentric amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201394046Y (en) |
Cited By (11)
| 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 |
| CN103169524A (en) * | 2013-04-19 | 2013-06-26 | 山东冠龙医疗用品有限公司 | Abrasion drill for orthopedic operation |
| CN104605913A (en) * | 2013-11-02 | 2015-05-13 | 重庆西山科技有限公司 | Medical grinding tool and driving assembly |
| CN108670349A (en) * | 2013-04-24 | 2018-10-19 | Tag医疗器材农业合作有限公司 | The device and method that bone material removes |
| US10178998B2 (en) | 2013-11-29 | 2019-01-15 | Chongqing Xishan Science & Technology Co., Ltd. | Lateral grinding drill with continuously variable angle and driving component thereof |
| US11020132B2 (en) | 2016-04-24 | 2021-06-01 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Guiding device and method of using thereof |
| US11033283B2 (en) | 2014-10-19 | 2021-06-15 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Kit including a guiding system and a bone material removal device |
| CN113491559A (en) * | 2021-07-26 | 2021-10-12 | 二零二零（北京）医疗科技有限公司 | Medical reamer |
| US11202641B2 (en) | 2018-08-01 | 2021-12-21 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Adjustable drilling device and a method for use thereof |
| US11446042B2 (en) | 2016-02-11 | 2022-09-20 | T.A.G. Medical Products Corporation Ltd. | Bone material removal device and a method for use thereof |
| US11779353B2 (en) | 2015-04-09 | 2023-10-10 | T.A.G. Medical Products Corporation Ltd. | Bone material removal device and a method for use thereof |
-
2009
- 2009-04-29 CN CN2009200216918U patent/CN201394046Y/en not_active Expired - Fee Related
Cited By (15)
| 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 |
| CN103169524A (en) * | 2013-04-19 | 2013-06-26 | 山东冠龙医疗用品有限公司 | Abrasion drill for orthopedic operation |
| CN108670349B (en) * | 2013-04-24 | 2021-06-04 | Tag医疗器材农业合作有限公司 | Device and method for bone material removal |
| CN108670349A (en) * | 2013-04-24 | 2018-10-19 | Tag医疗器材农业合作有限公司 | The device and method that bone material removes |
| CN104605913A (en) * | 2013-11-02 | 2015-05-13 | 重庆西山科技有限公司 | Medical grinding tool and driving assembly |
| US10178998B2 (en) | 2013-11-29 | 2019-01-15 | Chongqing Xishan Science & Technology Co., Ltd. | Lateral grinding drill with continuously variable angle and driving component thereof |
| US11033283B2 (en) | 2014-10-19 | 2021-06-15 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Kit including a guiding system and a bone material removal device |
| US11896242B2 (en) | 2014-10-19 | 2024-02-13 | T.A.G. Medical Products Corporation Ltd. | Kit including a guiding system and a bone material removal device |
| US11779353B2 (en) | 2015-04-09 | 2023-10-10 | T.A.G. Medical Products Corporation Ltd. | Bone material removal device and a method for use thereof |
| US11446042B2 (en) | 2016-02-11 | 2022-09-20 | T.A.G. Medical Products Corporation Ltd. | Bone material removal device and a method for use thereof |
| US11020132B2 (en) | 2016-04-24 | 2021-06-01 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Guiding device and method of using thereof |
| US11844537B2 (en) | 2016-04-24 | 2023-12-19 | T.A.G. Medical Products Corporation Ltd. | Guiding device and method of using thereof |
| US11202641B2 (en) | 2018-08-01 | 2021-12-21 | T.A.G. Medical Devices—Agriculture Cooperative Ltd. | Adjustable drilling device and a method for use thereof |
| US11690635B2 (en) | 2018-08-01 | 2023-07-04 | T.A.G. Medical Products Corporation Ltd. | Adjustable drilling device and a method for use thereof |
| CN113491559A (en) * | 2021-07-26 | 2021-10-12 | 二零二零（北京）医疗科技有限公司 | Medical reamer |
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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: 20100203 Termination date: 20100429 |