CN2602734Y - Bone external fixator - Google Patents
Bone external fixator Download PDFInfo
- Publication number
- CN2602734Y CN2602734Y CN 03220579 CN03220579U CN2602734Y CN 2602734 Y CN2602734 Y CN 2602734Y CN 03220579 CN03220579 CN 03220579 CN 03220579 U CN03220579 U CN 03220579U CN 2602734 Y CN2602734 Y CN 2602734Y
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- CN
- China
- Prior art keywords
- retainer ring
- bone
- external fixator
- fixed
- locking pin
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Abstract
The utility model discloses an orthopaedics surgery operation use skeleton external retainer, which comprises a retaining ring that is positioned outside the fracture limb parts, a screw stem and a screw cap that are connected with the retaining ring; wherein, the retaining ring has a hole, the screw stem is respectively inserted into the hole of the retaining ring and is fixed by the screw cap. The retaining ring also is provided with a needle locking device and a nail locking device that are the retaining device for retaining the retaining needle. The end part of the retaining needle crossing through the skeleton is fixed on the retaining ring by the needle locking device or the nail locking device. After overcoming the defects of severer wound and narrow practicability, the utility model has the advantages of fine retaining effect, practicability to the complicated fracture surgery operation.
Description
Technical field: the claimed technical scheme of this utility model relates to a kind of skeleton external fixator that is used for bone surgery.
Background technology: at present, internal fixation method and external plaster fixation method commonly used in bone surgery exist the defective that fixed effect is poor, the suitability is limited, complication is many, and especially the effect in the fracture operation of complexity is undesirable.For example, fracture,compound,comminuted is used compression steel plate, intramedullary pin internal fixation treatment more.Its shortcoming is: wound is big, and the blood of damaged bone is transported, and the possibility of infection, bone does not connect, inside-fixture fracture operative failure is arranged, and also needs the inside-fixture of operation taking-up for the second time.For comminuted fracture traction commonly used and the external plaster fixation therapy that can't do internal fixation of severe open, bed rest time is long, and complication is many, often leaves over ankylosis, dysfunction.Damaged for bone, to transplant with the bone of free bone grafting or band blood vessel, the former success rate is low, and get bone at other positions of patient body, the latter also need use microsurgical technique except that getting the bone at other positions of patient body, the operation technique complexity, in case and angiemphraxis, operation i.e. failure.For the malignant tumor of bones of extremities, use amputation more, patient's function is seriously lost.
Summary of the invention: the claimed technical scheme technical problem to be solved of this utility model provides a kind of good fixing effect, the suitability is wide, wound is little, be applicable to the bone external fixator that uses in the complicated fracture operation.
The claimed technical scheme of this utility model is: the bone external fixator; comprise the retainer ring that is positioned at outside the fracture limbs position, screw rod, the nut that connects described retainer ring; it is characterized in that: described retainer ring is provided with the hole; screw rod interts respectively in the hole of retainer ring and with fixed by nut; on described retainer ring, also be provided with purl device or pinning device; they are the fixing fixture of locking pin, and the end of passing the locking pin of skeleton is fixed on the retainer ring with purl device or pinning device.
The diameter of described locking pin is 1.5～2mm, and two ends are fixed on the retainer ring with the purl device, can have spheroid on it to stop fixedly bone cips.
The diameter of described locking pin is the drive screw of 4～5mm, and the drive screw that passes skeleton is fixed on the retainer ring by the pinning device.
Described locking pin is space crossed shape and arranges.
Adopt following structure, can make the bone external fixator be suitable for using in human body different parts and the different treatment objectives: described retainer ring is arcuate structure; Described retainer ring is the semi-circular structure of horse-hof shape; The described screw rod that is connected and fixed ring has linkage to bend.
This utility model has significant technological progress compared with prior art:
This skeleton external fixator can be applied to that fracture,compound,comminuted, bone are damaged, in the operative treatment of bone malignant tumour.For fracture,compound,comminuted without open reduction, but reset behind the closure of wound, closure is threaded a needle, and wound is little, and the activity of upper bracket posterior joint is as usual, stress shielding is little, help knitting, need not operation for the second time and take out inside-fixture, after the knitting, only need to remove external fixator, pull out locking pin and get final product.Because of locking pin is thin, tissue injury is little, has protected the blood fortune of bone, so healing is fast, complication such as pin site infection, nervus vasculairs damage, bone does not connect are few.For the severe open comminuted fracture that the amputation indication is partly arranged, can save limbs, restore funcitons from damage with this external fixator technology.This external fixator is applied in the bone defect healing, and in conjunction with using " cortical bone otomy " and " bone passing method ", operating technology is simple, need not get bone at other positions of patient body, the success rate height.For bone malignant tumour, only the bone section that needs tumor resection and taken place with original position implantation again after the deactivation of this section bone, is utilized this support external fixation then, or reuse external fixator behind the tumor section resected bone is carried out bone prolong, so just can on saving the basis of limbs from damage, tumor resection recover limb function.For patients, can alleviate the operation misery greatly, reduce the hospital stays, reduce medical expense.
Description of drawings:
Fig. 1, Fig. 2 are the structural representations of two specific embodiment of the present utility model.Retainer ring 1, screw rod 2, nut 3, purl device 4 among the figure, the hole 5 that is provided with on the retainer ring, locking pin 6, linkage 7, linkage locking nut 8, the spheroid 9 on the locking pin.
The specific embodiment:
Structure as shown in Figure 1 can be in order to carry out fractures, during operation, be that the locking pin 6 of 1.5mm intersects to penetrate in Different Plane and needs in the fixed bone with diameter, with purl device 4 locking pin 6 is fixed on the retainer ring 1 then, reuse screw rod 2, nut 3 is connected to a fixed retainer ring 1, just formed an external fixator the simplest, retainer ring 1 is for being positioned at the becket outside the fracture limbs position, be evenly distributed with many screwed holes on it, be convenient to screw rod 2 and insert installation, locking pin 6 is tightened up generation tension force, be securely fixed on the retainer ring 1 by purl device 4 then, retainer ring like wheel the same securely fracture fixation on original position, and can handle the joint of bone by the push-and-pull of apparatus different directions.The locking pin crossings on different level is arranged, and the stressed of bone is 3-D solid structure, intensity height, fixed.
When in the screw rod 2 linkage 7 being housed, can regulate linkage 7 in order to carrying out the bone orthopaedic treatment, and fix with linkage locking nut 8, just can carry out axial compression and stretching, bending etc. are multi-faceted orthopedic, applied range to bone stump.
When tiny bone fragments, can have spheroid 9 on the locking pin 6, in order to stop the bone fixation fragment.
When described locking pin 6 is the drive screw of 4～5mm for diameter, only penetrate skeleton, do not pass the opposite soft tissue, fixing fracture when being subjected to the anatomical structure restriction.
When retainer ring 1 adopts the horse-hof shape semicircular structure, after facing toward, the breach of ring can make things convenient for the curvature movement of patient's limbs joint, and make the patient be with external fixator also can carry out functional exercise.
On using method, this external fixator can assemble on operating-table temporarily, also can be according to fracture site and type assembling, as selecting different compression steel plates for use according to dissimilar fracture before operation.Before art, assemble external fixator, design the fixed position of each root draw point, can accelerate operative speed greatly, improve curative effect according to fracture situation.
Structure shown in Figure 2 is applicable to treatment foot fracture.
This utility model can be widely used in the operations such as reduction of the fracture external fixation, bone does not connect, bone are damaged, limb lengthening, osteotomy is orthopedic, the joint is orthopedic, joint fusion.Use this support can carry out some complicated reduction of the fracture operation, eliminate deformity, prolong limbs, the treatment bone is also very suitable aspect damaged.
Claims (7)
1, bone external fixator, comprise the retainer ring (1) that is positioned at outside the fracture limbs position, screw rod (2), the nut (3) that connects described retainer ring, it is characterized in that: described retainer ring (1) is provided with hole (5), screw rod (2) interts respectively to be fixed in the hole (5) of retainer ring (1) and with nut (3), on described retainer ring (1), also be provided with purl device or pinning device (4), they are the fixing fixture of locking pin (6), and the end of passing the locking pin (6) of skeleton is fixed on the retainer ring (1) with purl device or pinning device (4).
2, bone external fixator according to claim 1 is characterized in that: the diameter of described locking pin (6) is 1.5～2mm, and two ends are fixed on the retainer ring (1) with purl device (4), can have spheroid (9) on it.
3, bone external fixator according to claim 1, it is characterized in that: the diameter of described locking pin is the drive screw of 4～5mm, the drive screw that passes skeleton is fixed on the retainer ring (1) by pinning device (4).
3, bone external fixator according to claim 1 is characterized in that: described locking pin (6) is space crossed shape and arranges.
4, bone external fixator according to claim 1 is characterized in that: described retainer ring (1) is an arcuate structure.
5, bone external fixator according to claim 1 is characterized in that: described retainer ring (1) is the semi-circular structure of horse-hof shape.
6, bone external fixator according to claim 1 is characterized in that: the screw rod (2) that is connected and fixed ring has linkage (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220579 CN2602734Y (en) | 2003-03-21 | 2003-03-21 | Bone external fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03220579 CN2602734Y (en) | 2003-03-21 | 2003-03-21 | Bone external fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602734Y true CN2602734Y (en) | 2004-02-11 |
Family
ID=34161976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03220579 Expired - Fee Related CN2602734Y (en) | 2003-03-21 | 2003-03-21 | Bone external fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2602734Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283699A (en) * | 2011-06-29 | 2011-12-21 | 成永忠 | Combination type ankle joint three-dimensional traction fixing frame |
| CN102860861A (en) * | 2012-10-22 | 2013-01-09 | 夏和桃 | Fast extension rod for bone external fixing device and adjustable bionic bone external fixing device |
| CN104398295B (en) * | 2013-12-05 | 2017-03-08 | 乔锋 | A kind of orthopaedics malformation correction and fixator for fracture reduction and its processing method |
-
2003
- 2003-03-21 CN CN 03220579 patent/CN2602734Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283699A (en) * | 2011-06-29 | 2011-12-21 | 成永忠 | Combination type ankle joint three-dimensional traction fixing frame |
| CN102283699B (en) * | 2011-06-29 | 2013-01-16 | 成永忠 | Combination type ankle joint three-dimensional traction fixing frame |
| CN102860861A (en) * | 2012-10-22 | 2013-01-09 | 夏和桃 | Fast extension rod for bone external fixing device and adjustable bionic bone external fixing device |
| CN102860861B (en) * | 2012-10-22 | 2014-04-23 | 夏和桃 | Fast extension rod for bone external fixing device and adjustable bionic bone external fixing device |
| CN104398295B (en) * | 2013-12-05 | 2017-03-08 | 乔锋 | A kind of orthopaedics malformation correction and fixator for fracture reduction and its processing method |
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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 |