CN2516116Y - Expansion screw type self-locking intramedullary nail - Google Patents
Expansion screw type self-locking intramedullary nail Download PDFInfo
- Publication number
- CN2516116Y CN2516116Y CN 01230173 CN01230173U CN2516116Y CN 2516116 Y CN2516116 Y CN 2516116Y CN 01230173 CN01230173 CN 01230173 CN 01230173 U CN01230173 U CN 01230173U CN 2516116 Y CN2516116 Y CN 2516116Y
- Authority
- CN
- China
- Prior art keywords
- nail
- type self
- screw bolt
- intramedullary nail
- double
- 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
Images
Abstract
Disclosed is a bulgy-screw-type self-locking intramedullary nail for treating thighbone stem fracture in orthopaedics, consisting of two parts, namely, a main nail and a center bolt. Wherein the main nail is produced by a transformed hollow medical seamless stainless steel pipe or a prior finalized product plum-blossom-shaped needle; the far end of the main nail can be automatically opened for controlling the rotation of the far segment of the fracture part by a slot opened on the far segment of the main nail and by the upward shift of a cone-shaped nut; the rotation of the close segment of the fracture part can be controlled by a close segment ratchet device. The bulgy-screw-type self-locking intramedullary nail overcomes the disadvantages of complex operations, multiple operation cuts, complex matched instruments and stationary static of the nail locking and positioning device of an intramedullary nail with a lock. With simple operation, little hurt, no need of special equipment and low cost, the utility model has a flexible fixing function and is suitable for wide promotion and application.
Description
1, the title of utility model: setscrew type self-locking intramedullary nail
2, affiliated technical field: medical apparatus and instruments
3, prior art: the orthopaedics therapy shaft fracture, in the distance end pulp cavity of fracture, insert the intramedullary pin that the thing compatibility in all one's life is good, have certain intensity usually, connect and fixation to reach fracture end.Updating and improve along with fracture internal fixation technology, on the basis of standard intramedullary pin, intramedullary nail with lock has appearred again, be to hold diagonal or walk crosswise by its distance to penetrate screw, make it and integral body of whole long bone formation, thus the rotation and the shearing of control fracture end, the indication of intramedullary pin is expanded to the fracture at comminuted, long oblique and femur two ends etc., increase the stability of fracture fixation, improved the union of fracture rate, reduced infection rate.Perform the operation in the practice, intramedullary nail with lock must increase operative incision because pinning is positioned at the two ends of long diaphysis, and pinning positioner complex operation, must use C arm Roentgen apparatus etc. in case of necessity.
4, the purpose of utility model: the purpose of this utility model provides a kind of improved self-locking intramedullary nailing, can not only reach the fixation of the intramedullary nail with lock of present application, and can overcome the fixed shortcoming of its firm static, become flexible fastening, improve the union of fracture rate, operation technique is simpler.
5, technical scheme: the technical solution of the utility model, improved the scheme of the additional pinning of the far and near end of intramedullary nail with lock, by main nail body section fluting far away, move on the tapered cup nut, main nail body section far away is opened automatically to control the rotation of fracture section far away, the near-end ratchet means, the rotation of the nearly section of control fracture is applicable to Fracture of femur.
6, beneficial effect: the setscrew type self-locking intramedullary nail that the utility model discloses a kind of orthopaedics therapy fracture of shaft of femur, utilize tapered cup nut on the double-screw bolt of intramedullary pin center on move, intra medullary nail far-end is opened gradually, and the near-end ratchet means, with the section rotation far away, near of control fracture.Operation technique is simple, relative damage is little, do not need special installation, low cost of manufacture, is suitable for extensively and carries out.
7, drawing explanation: figure is the structural representation of setscrew type self-locking intramedullary nail.Main nail body (1) near-end lateral recesses breach and near-end prevent revolving ratchet means (5) interlock, slot (8) on the main nail body section far away anteroposterior position, move to portal (10) move to portal on the position about far-end (9) on the near-end anteroposterior position.Center double-screw bolt (2) remote design tapered cup nut (3), axial jump ring (4), near-end is inside and outside hexagon (7), nearly section has spring washer (6).
8, using method:
(1) internal fixation: steps such as the reduction of the fracture, expansion marrow are carried out routinely.Through the tuberosity part direct motion person that advances the nail, this setscrew type self-locking intramedullary nail needn't split, behind the logical expansion of the pears shape socket drill marrow, in the corresponding point boring of neck of femur substrate top, the greater trochanter spongy bone needn't be holed, after intramedullary pin was squeezed in direct motion, anti-ratchet means two pawls that revolve of near-end inserted in neck of femur boring and the greater trochanter spongy bone the nearly section rotation of control fracture respectively.Clockwise direction center of rotation double-screw bolt then moves on the distal end taper nut, and intra medullary nail far-end is opened gradually with the section rotation far away of control fracture.The center of rotation double-screw bolt flattens degree of being with the near-end spring washer.Cut the into nail person that drives in the wrong direction through fractures, earlier intramedullary pin is split, center double-screw bolt distal shaft is taken off the stubborn tapered cup nut that moves back to jump ring, extraction center double-screw bolt and near-end are anti-to revolve ratchet means, will lead the nail body and squeeze into, go out pears shape nest after, intramedullary pin is reconfigured, after the nail tail is retracted into pulp cavity, the reduction of the fracture, the nail method is advanced with direct motion in the back.
(2) get internal fixation: cut the greater trochanter top, expose the intramedullary pin near-end, with die nut counter clockwise direction center of rotation double-screw bolt, move on the double-screw bolt of center, withstand tapered cup nut to jump ring, the center double-screw bolt is knocked downwards gently up to distal shaft, then double-screw bolt and tapered cup nut slide to far-end under smoothly, open intra medullary nail far-end resilience, resilience all do not divide, by on when taking out intramedullary pin pulp cavity constraint and close up smooth extraction.
Claims (5)
1, a kind of setscrew type self-locking intramedullary nail of orthopaedics therapy fracture of shaft of femur, comprise main body nail and center double-screw bolt two parts, it is characterized in that, intramedullary pin is made up of main body nail and center double-screw bolt two parts, the main body nail is changed a social system with the seamless medical stainless steel pipe of hollow or with existing approved product percussopunctator, main body nail near-end lateral recesses and near-end prevent revolving the ratchet means interlock, slot on the main nail body section far away anteroposterior position, and the center double-screw bolt is provided with spring washer, tapered cup nut and axial jump ring.
2, setscrew type self-locking intramedullary nail according to claim 1, main body nail near-end lateral recesses and near-end prevent revolving the ratchet means interlock, ratchet two pawls insert respectively in neck of femur boring and the greater trochanter spongy bone, near section rotation of control fracture.
3, setscrew type self-locking intramedullary nail according to claim 1 moves on the double-screw bolt distal end taper nut of center, and intra medullary nail far-end is opened gradually with the section rotation far away of control fracture.
4, setscrew type self-locking intramedullary nail according to claim 1, the spring washer of center double-screw bolt near-end, center of rotation double-screw bolt strength when instructing internal fixation.
5, setscrew type self-locking intramedullary nail according to claim 1, the axial jump ring of center double-screw bolt far-end, tapered cup nut comes off in the time of can preventing to get internal fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230173 CN2516116Y (en) | 2001-07-13 | 2001-07-13 | Expansion screw type self-locking intramedullary nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01230173 CN2516116Y (en) | 2001-07-13 | 2001-07-13 | Expansion screw type self-locking intramedullary nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2516116Y true CN2516116Y (en) | 2002-10-16 |
Family
ID=33644838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01230173 Expired - Fee Related CN2516116Y (en) | 2001-07-13 | 2001-07-13 | Expansion screw type self-locking intramedullary nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2516116Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298295C (en) * | 2004-12-30 | 2007-02-07 | 潘滔 | Opening type intramedullary nail |
| CN102209500A (en) * | 2008-11-06 | 2011-10-05 | 新特斯有限责任公司 | One way sliding device for intramedullary intertrochanteric fixation implants |
| CN104083199A (en) * | 2014-07-25 | 2014-10-08 | 杨涛 | Self-locking pressurizing intramedullary nail capable of making two ends of fracture portion tightly joined |
| CN107280748A (en) * | 2017-07-27 | 2017-10-24 | 焦作市新港医疗设备有限公司 | A kind of femoral interlocking nail and the femur using the femoral interlocking nail |
| CN108348284A (en) * | 2015-09-29 | 2018-07-31 | 奥瑟菲克斯有限公司 | Bone inner bolt component and the inside fixed system for including the bone inner bolt component |
-
2001
- 2001-07-13 CN CN 01230173 patent/CN2516116Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298295C (en) * | 2004-12-30 | 2007-02-07 | 潘滔 | Opening type intramedullary nail |
| CN102209500A (en) * | 2008-11-06 | 2011-10-05 | 新特斯有限责任公司 | One way sliding device for intramedullary intertrochanteric fixation implants |
| CN106618707A (en) * | 2008-11-06 | 2017-05-10 | 新特斯有限责任公司 | One way sliding device for intramedullary intertrochanteric fixation implants |
| US9883895B2 (en) | 2008-11-06 | 2018-02-06 | DePuy Synthes Products, Inc. | One way sliding device for intramedullary intertrochanteric fixation implants |
| CN104083199A (en) * | 2014-07-25 | 2014-10-08 | 杨涛 | Self-locking pressurizing intramedullary nail capable of making two ends of fracture portion tightly joined |
| CN108348284A (en) * | 2015-09-29 | 2018-07-31 | 奥瑟菲克斯有限公司 | Bone inner bolt component and the inside fixed system for including the bone inner bolt component |
| CN108348284B (en) * | 2015-09-29 | 2021-03-09 | 奥瑟菲克斯有限公司 | Intraosseous screw assembly and internal fixation system comprising same |
| CN107280748A (en) * | 2017-07-27 | 2017-10-24 | 焦作市新港医疗设备有限公司 | A kind of femoral interlocking nail and the femur using the femoral interlocking nail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7846162B2 (en) | Minimally invasive actuable bone fixation devices | |
| EP0892624B1 (en) | Intramedullary nail for the osteosynthesis of bone fractures | |
| RU2334484C2 (en) | Bliskunov device for elongating long bones | |
| US20090062796A1 (en) | Modular, blade-rod, intramedullary fixation device | |
| JPH07500520A (en) | osteosynthesis device | |
| CA2463856A1 (en) | Intramedullary hip nail with bifurcated lock | |
| CN2516116Y (en) | Expansion screw type self-locking intramedullary nail | |
| CN1899227A (en) | Expanding type spongy bone hollow screw | |
| CN2936183Y (en) | Expansion type spongy bone hollow screw | |
| CN205073001U (en) | Intramedullary nail with locking mechanism | |
| CN100584284C (en) | Dilating expansion intramedullary nail | |
| CN205073002U (en) | Distal end inflation is from locking -type intramedullary nail | |
| CN100544680C (en) | A kind of dilating expansion intramedullary nail | |
| CN112914702A (en) | Intramedullary nail special for children and use method thereof | |
| CN203634270U (en) | Lateral bending rotation-preventing intramedullary nail used at near end of thigh bone | |
| CN201200467Y (en) | Distracting and expending intramedullary nail | |
| CN2513533Y (en) | Pressing locking intra-medullary nail for fracture | |
| CN209253081U (en) | PFNA proximal femoral nail instrument | |
| CN2369639Y (en) | Intramedullary pin with self locking device at remote end | |
| CN213156206U (en) | Instrument is retrieved to four limbs tubulose marrow cavity division marrow reaming and piece bone | |
| CN2283464Y (en) | Locator for distal lock hole of intramedullary nail with lock | |
| CN102755187A (en) | Proximal femoral percutaneous locking dynamic hip helical blade nail | |
| CN219480300U (en) | Femoral intramedullary nail system | |
| CN201160889Y (en) | Dilating expansion intramedullary nail | |
| CN216136002U (en) | Bone cement intramedullary nail fixing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |