CN2691503Y - External fixer for bone - Google Patents
External fixer for bone Download PDFInfo
- Publication number
- CN2691503Y CN2691503Y CN 200420039115 CN200420039115U CN2691503Y CN 2691503 Y CN2691503 Y CN 2691503Y CN 200420039115 CN200420039115 CN 200420039115 CN 200420039115 U CN200420039115 U CN 200420039115U CN 2691503 Y CN2691503 Y CN 2691503Y
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- hole
- body frame
- core rod
- retainer ring
- 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 an external fixer for a department of orthopaedics. The utility model comprises a main frame, fixing needles and a T-shaped sleeve barrel, wherein, the main frame is divided into three parts, the middle part of the main frame is a telescopic adjustable section, and both sides of the main frame are two installation sections for the fixing needles. The telescopic adjustable section is divided into two parts, one part is provided with a core rod, and the end of the other part opposite to a core rod is designed into a sleeve pipe structure. The core rod is arranged in a sleeve pipe, and the core rod and the sleeve pipe are matched with each other; the core rod is provided with a long slot, one side of the long slot is provided with a bar-shaped tooth, and a shifting gear which is matched with the bar-shaped tooth in the long slot is arranged in the long slot. The center of the shifting gear is hollowed out to form a through hole in which a pin is arranged. The sleeve pipe is provided with a through hole on the wall, and the position of the through hole is corresponding to the position of the long slot on the core rod. An annular fixing ring in which a linkage sleeve pipe is arranged in the through hole, and a pin is partially inserted in the linkage sleeve pipe. The utility model which prevents a fracture site from shifting can simultaneously reinforce the strength of the fixer. Furthermore, the utility model is simpler to be operated than a common fixer after a lateral compression rod is omitted.
Description
Technical field
This utility model relates to a kind of surgical operating instrument, especially a kind of bone surgery external fixer.
Background technology
At present the clinical orthopaedics doctor is the most frequently used when long bone shaft fracture is selected external fixator for use is the orthopaedics external fixer, and it has the firm characteristics of safety.It is made of body frame, side constrictor, locking pin, T-shape sleeve pipe, and body frame is divided into three parts, and three parts connect by universal joint, and the body frame middle part is the telescopic adjustment section, and the body frame both sides are the locking pin construction section.The telescopic adjustment section is a tube-in-tube structure, and design has trip bolt in order to the fixing length of telescopic adjustment section on the sleeve.Locking pin is fixed by the locking pin construction section after squeezing in the skeleton.It is ducted body that the design of telescopic adjustment section two ends has universal joint gim peg, universal joint gim peg, and it vertically passes the telescopic adjustment section, and the side constrictor is the screw rod feeding adjusting, and it realizes its regulatory function by placing the intravital pin of universal joint gim peg cavity.The orthopaedics external fixer of this form prolongs or during pressurization, the side constrictor need at first be installed and put rotary screw the skeleton place carrying out, and waste time and energy, and the side constrictor is the frame external part, takes up space, and carries inconvenience.In addition, a little less than its compression strength, the easy fracture of wire of constrictor screw rod; In pressurization or prolong strength when big, side lever becomes the angle active force big with body frame, easily makes to pressurize or extending direction departs from the body frame longitudinal axis, makes fracture be moved into the angle from face, even malunion, disunion.
Summary of the invention
The purpose of this utility model provides the big and pressurization of a kind of compression strength or overtime does not produce the orthopaedics external fixer that is moved into the angle between knochenbruch.
A kind of orthopaedics external fixer, it comprises body frame, locking pin, T-shape sleeve, and body frame is divided into three parts, and three parts connect by universal joint, and the body frame middle part is the telescopic adjustment section, the body frame both sides are the locking pin construction section; The telescopic adjustment section is divided into two parts, wherein one one has core bar, another part and core bar are held in opposite directions and are designed to sleeve structure, core bar put with sleeve pipe in and cooperatively interact, it is characterized in that core bar has elongated slot prolonging its length direction, one side of elongated slot has the bar shaped tooth, elongated slot is built-in with the displacement gear that matches with bar shaped tooth in the groove, and displacement gear middle part hollow out becomes through hole, and through hole is built-in with the pin that can drive the displacement gear rotation; On casing wall, have through hole, lead to the hole site is corresponding with the position of core pole gain, through hole is built-in with annular retainer ring, retainer ring is built-in with the interlock sleeve pipe, retainer ring and interlock sleeve pipe match to merge and limit its motion, and the retainer ring periphery is extruded with fixedly ear, fixedly ear by dowel fixes on sleeve pipe, interlock sleeve pipe lower end places on the displacement gear, and pin partly penetrates in the interlock sleeve pipe.
During use, as need the length of telescopic adjustment section to change, at first retainer ring is taken out, then spanner is placed interlock sleeve pipe internal rotation, the interlock sleeve pipe drives the displacement gear motion by pin, thereby realizes that core bar is flexible in sleeve.After adjusting finishes, retainer ring is retightened, so just realized fixing to the new length of telescopic adjustment section, final pressurization or the prolongation that realizes knochenbruch.
After using this device, avoided fracture site to produce displacement, can strengthen the intensity of fixed mount simultaneously because of it has omitted the side constrictor, omit the side constrictor in addition after operation also simply many than the ordinary fixed frame.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
Embodiment 1
A kind of orthopaedics external fixer, it comprises body frame, locking pin, T-shape sleeve, and body frame is divided into three parts, and three parts connect by universal joint, and the body frame middle part is a telescopic adjustment section 2, the body frame both sides are locking pin construction section 1; The telescopic adjustment section is divided into two parts, wherein one one has core bar 6, another part and core bar are held in opposite directions and are designed to sleeve pipe 3 structures, core bar 6 put with sleeve pipe 3 in and cooperatively interact, it is characterized in that core bar 6 has elongated slot prolonging its length direction, one side of elongated slot has the bar shaped tooth, elongated slot is built-in with the displacement gear 8 that matches with bar shaped tooth in the groove, and displacement gear 8 middle part hollow outs become through hole, and through hole is built-in with the pin 7 that can drive the displacement gear rotation; On sleeve pipe 3 walls, have through hole, lead to the hole site is corresponding with the position of core pole gain, through hole is built-in with annular retainer ring 4, retainer ring 4 is built-in with interlock sleeve pipe 5, retainer ring 4 matches to merge with interlock sleeve pipe 5 and limits its motion, and retainer ring 4 peripheries are extruded with fixedly ear, fixedly ear by dowel fixes on sleeve pipe 3, interlock sleeve pipe 5 lower ends place on the displacement gear 8, and pin 7 parts penetrate in the interlock sleeve pipe 5.
Claims (1)
1, a kind of orthopaedics external fixer, it comprises body frame, locking pin, T-shape sleeve, and body frame is divided into three parts, and three parts connect by universal joint, and the body frame middle part is telescopic adjustment section (2), the body frame both sides are locking pin construction section (1); The telescopic adjustment section is divided into two parts, wherein one one has core bar (6), another part and core bar are held in opposite directions and are designed to sleeve pipe (3) structure, core bar (6) put with sleeve pipe (3) in and cooperatively interact, it is characterized in that: core bar (6) has elongated slot prolonging its length direction, and a side of elongated slot has the bar shaped tooth, and elongated slot is built-in with the displacement gear (8) that matches with bar shaped tooth in the groove, displacement gear (8) middle part hollow out becomes through hole, and through hole is built-in with the pin (7) that can drive the displacement gear rotation; On sleeve pipe (3) wall, have through hole, lead to the hole site is corresponding with the position of core pole gain, through hole is built-in with annular retainer ring (4), retainer ring (4) is built-in with interlock sleeve pipe (5), retainer ring (4) and interlock sleeve pipe (5) match to merge and limit its motion, and retainer ring (4) periphery is extruded with fixedly ear, fixedly ear by dowel fixes on sleeve pipe (3), interlock sleeve pipe (5) lower end places on the displacement gear (8), and pin (7) part penetrates in the interlock sleeve pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039115 CN2691503Y (en) | 2004-03-13 | 2004-03-13 | External fixer for bone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420039115 CN2691503Y (en) | 2004-03-13 | 2004-03-13 | External fixer for bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2691503Y true CN2691503Y (en) | 2005-04-13 |
Family
ID=34773787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420039115 Expired - Fee Related CN2691503Y (en) | 2004-03-13 | 2004-03-13 | External fixer for bone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2691503Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002695B (en) * | 2005-11-23 | 2011-01-05 | 史赛克创伤公司 | Compression instrument |
| CN105476701A (en) * | 2015-12-14 | 2016-04-13 | 重庆医科大学附属永川医院 | Bone transport apparatus for treatment of large segmental defect of femur |
| CN105476702A (en) * | 2015-12-14 | 2016-04-13 | 重庆医科大学附属永川医院 | Bone transport apparatus for treatment of large segmental defect of humerus |
| CN106859757A (en) * | 2015-12-14 | 2017-06-20 | 重庆医科大学附属永川医院 | A kind of bone Handling device for shin bone large segmental bone defect |
| CN105877830B (en) * | 2015-12-14 | 2018-07-06 | 重庆医科大学附属永川医院 | A kind of bone handling device for large segmental bone defect |
| CN109350207A (en) * | 2018-11-09 | 2019-02-19 | 创辉医疗器械江苏有限公司 | A kind of flexible connecting rod and exterior fixing rack |
-
2004
- 2004-03-13 CN CN 200420039115 patent/CN2691503Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101002695B (en) * | 2005-11-23 | 2011-01-05 | 史赛克创伤公司 | Compression instrument |
| CN105476701A (en) * | 2015-12-14 | 2016-04-13 | 重庆医科大学附属永川医院 | Bone transport apparatus for treatment of large segmental defect of femur |
| CN105476702A (en) * | 2015-12-14 | 2016-04-13 | 重庆医科大学附属永川医院 | Bone transport apparatus for treatment of large segmental defect of humerus |
| CN106859757A (en) * | 2015-12-14 | 2017-06-20 | 重庆医科大学附属永川医院 | A kind of bone Handling device for shin bone large segmental bone defect |
| CN106859757B (en) * | 2015-12-14 | 2018-07-06 | 重庆医科大学附属永川医院 | A kind of bone handling device for shin bone large segmental bone defect |
| CN105877830B (en) * | 2015-12-14 | 2018-07-06 | 重庆医科大学附属永川医院 | A kind of bone handling device for large segmental bone defect |
| CN109350207A (en) * | 2018-11-09 | 2019-02-19 | 创辉医疗器械江苏有限公司 | A kind of flexible connecting rod and exterior fixing rack |
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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 |