CN1286074A - Automatically and gradually advancing osteotylus extender - Google Patents
Automatically and gradually advancing osteotylus extender Download PDFInfo
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- CN1286074A CN1286074A CN 00122392 CN00122392A CN1286074A CN 1286074 A CN1286074 A CN 1286074A CN 00122392 CN00122392 CN 00122392 CN 00122392 A CN00122392 A CN 00122392A CN 1286074 A CN1286074 A CN 1286074A
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- osteotylus
- extender
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Abstract
An automatically and gradually advancing osteotylus extender for extending bone is composed of inverted U-shaped structure and traction annular structure movable up and down, and features that it can be automatically controlled by use of the worm gear drive mechanism and step motor. Its advantages are simple and reasonable structure, preventing complication, reliable fixing and convenient operation.
Description
What the present invention relates to is medical apparatus and instruments, especially a kind of automatically and gradually advancing osteotylus extender that is used for being undertaken by the callus lengthening mode bone lengthening.
The callus lengthening art is meant at the inside and outside periosteum of the complete reservation of metaphysis osteotomy overtime, and the mesenchymal cell of outer periosteum and interior periosteum has very strong osteogenic ability, by reaching these osteogenic tissues of lasting tractive slowly, gradually, when making osteotomy place and region of elongation callus formation, bone is prolonged, with the balance of maintenance limbs, thereby avoid carrying out the bone transplanting second time and internal fixation operation, simultaneously also rectifiable as various deformities such as angulation deformity, rotation deformity, soft tissue deformitys.Be to cooperate the enforcement of callus lengthening art, as far back as nineteen twenties the bone external fixer be applied to the bone lengthening field.At present, the external fixation extension fixture that is widely used in the callus lengthening art mostly is annular external fixer, this annular external fixer comprises one by support and two II shape structure-steel framings that screw rod constitutes, two screw rods of II shape structure-steel framing are provided with one can cooperate the cross bar that moves up and down with screw rod, regulates the nut of cross bar and can realize that cross bar moves up and down along II shape structure-steel framing.Adopt this annular external fixer as traction appliance, carry out the callus lengthening art, hauling speed commonly used is 1mm every day, divides and finishes for 2～4 times, promptly divides every day to regulate the annular external fixer cross bar that is set on the limbs for 2～4 times and move 1mm along screw rod.Being related of hauling speed and callus formation and complication is bigger, although the mode of taking section gap to regulate is at present finished the hauling speed of 1mm every day, to satisfy the requirement that callus slowly forms.But according to the human body growth course, the hauling speed of this saltatory is not very good, and therefore, existing all kinds of traction fixation frames are applied to the callus lengthening art and exist the incidence rate of various complication higher.According to one's analysis, this unbalanced or operational error with hauling speed, pull strength is relevant.Therefore, how making crust prolong the hauling speed of art and the characteristics that strength meets the limbs tissue growth more, is the problem that the medical matters scientific and technical personnel are concerned about always.
The objective of the invention is deficiency, the automatically and gradually advancing osteotylus extender that provides a kind of pull strength equilibrium, hauling speed and limbs tissue growth to adapt at above-mentioned orthopaedics traction fixation frame existence.
Automatically and gradually advancing osteotylus extender of the present invention, comprise: by toroidal frame and two II shape structure-steel framings that screw rod constitutes, is furnished with the traction toroidal frame of offering corresponding perforation on two screw rods of II shape structure-steel framing, it is characterized in that: be separately installed with on traction toroidal frame set symmetric two movable blocks two axis holes have can with the worm gear of screw engages screw thread, be respectively equipped with on two movable blocks and cooperate the transmission worm screw with worm gear, constitute Worm wheel transmission mechanism, be installed as two motors that worm screw provides power respectively on traction toroidal frame two movable blocks, described two motors are by its rotating speed of may command and the control of the control device of working time.
In addition key character of the present invention is: automatically and gradually advancing osteotylus extender is provided with a pick off that can measure pull strength size under its duty.
The design principle of automatically and gradually advancing osteotylus extender of the present invention is: the rotating speed of transmission motor is controlled traction toroidal frame the moving automatically on screw rod of realizing the callus lengthening device by control device; By control device the working time of motor is determined the shift length of traction toroidal frame on screw rod.Can monitor the pull strength that acts on operative site at any time by pick off.
Automatically and gradually advancing osteotylus extender design science of the present invention, rational in infrastructure, simple, it has the following advantages: 1, the application of this automatically and gradually advancing osteotylus extender on the callus lengthening art, because the mobile of toroidal frame carries out with continuous fashion in the extender traction, therefore, its continuous traction to operative site more adapts to the regeneration requirement of patient's internal body tissue, avoid prior art once a day or second traction because of drawing the unbalanced incompatibility that causes operative site body tissue growth, cause various complication.2,, thereby reduce the generation of complication because whole distraction procedure continues to carry out, and its pull strength is evenly distributed, and can guarantee the nature static at bone one pin interface.3, utilize pick off to monitor and the setting of optimum traction to pull strength.4, adopt this extender to carry out the patient of callus lengthening art, patient bears a heavy burden down and can produce axial stress in the callus lengthening district, promotes growth of spur and moulding.5, because this extender is in light weight, patient can bear a heavy burden down fully, has made things convenient for taking care of oneself of patient.6, applied widely, be applicable to the rectification of various cacomelias such as, bone tumor operation back damaged such as congenital of short and small stature, dwarfism, achondroplasia, traumatic bone, osteomyelitis are damaged, poliomyelitis, congenital pseudarthrosis of tibia, growth retardation etc.7,, fixing reliable because the operation of this extender is controlled by control device, and it is easy to operate.
The concrete structure of automatically and gradually advancing osteotylus extender of the present invention is provided in detail by the following drawings and embodiment.
Fig. 1 is the structural representation of automatically and gradually advancing osteotylus extender.
Can be clear that from Fig. 1, the II shape structure-steel framing 1 of automatically and gradually advancing osteotylus extender is connected its two ends fixed block 6 by toroidal frame 2 and vertical fixing, two screw rods 3 on 7,4 constitute, toroidal frame 2 symmetric two fixed blocks 6, intert on 7 and be equipped with draw point 5, by draw point 8 and two movable blocks 9 that are provided with perforation, the 10 traction toroidal frames of forming 11 are set in two screw rods 3, on 4, two movable blocks 9, all the worm gear 12 that one axis hole is provided with screw thread is installed respectively on 10 with model of action, 13, worm gear 12,13 axis hole screw thread and screw rod 3,4 the position of engages adjustable traction toroidal frame 11 on II shape structure-steel framing 1, two movable blocks 9, be respectively equipped with on 10 one can with worm gear 12,13 worm screws 14 that cooperate, 15.Described two pairs of worm gears 12,13 and worm screw 14,15 constitute two groups of Worm wheel transmission mechanisms respectively, and its gear ratio is consistent.Also be respectively equipped with on two movable blocks 9,10 to worm screw 14,15 provides motor 16,17, two motors 16,17 of power and control by control device 18.As: the gear ratio of two groups of Worm wheel transmission mechanisms is set at 1: 30, screw rod 3 and 4 helical pitch are 2mm, the step angle of motor 16,17 is 3 °, set control device 18 and whenever send a pulse and can make motor 16,17 rotate 3 ° respectively, control device 18 whenever sends a pulse and just can make traction toroidal frame 11 move 0.00056mm so.As every day drawing length be set at 1mm, then control device 18 can be finished the drawing length of setting after sending 1785.7 pulses of 1/0.00056 ≈.Be the convenient size of scientifically controlling pull strength, automatically and gradually advancing osteotylus extender is furnished with the pick off 19 that can measure pull strength size under its duty, this pick off 19 is installed on the toroidal frame 2 of II shape structure-steel framing 1, and described pick off 19 is the piezoquartz tube sensor.
Claims (4)
1, a kind of automatically and gradually advancing osteotylus extender, comprise: by toroidal frame (2) and two screw rods (3), (4) the II shape structure-steel framing (1) of Gou Chenging, two screw rods (3) of II shape structure-steel framing (1), (4) be provided with and prolong the traction toroidal frame (11) that it moves up and down, it is characterized in that: traction toroidal frame (11) set symmetric two movable blocks (9), (10) be separately installed with on two axis holes have can with the worm gear (12) of screw engages screw thread, (13), two movable blocks (9), (10) be respectively equipped with on and worm gear (12), (13) cooperate transmission worm screw (14), (15), constitute Worm wheel transmission mechanism, two movable blocks (9), (10) be installed as worm screw (14) on respectively, (15) provide the motor (16) of power, (17), described motor (16), (17) by its rotating speed of may command and the control device of working time (18) control.
2, automatically and gradually advancing osteotylus extender according to claim 1 is characterized in that: described two pairs of worm gears (12), (13) constitute two groups of Worm wheel transmission mechanisms respectively with worm screw (14), (15), and its gear ratio is consistent.
3, automatically and gradually advancing osteotylus extender according to claim 1 and 2 is characterized in that: automatically and gradually advancing osteotylus extender is provided with a pick off (19) that can measure pull strength size under its duty.
4, automatically and gradually advancing osteotylus extender according to claim 3 is characterized in that: described pick off (19) is the piezoquartz tube sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122392 CN1127324C (en) | 2000-09-21 | 2000-09-21 | Automatically and gradually advancing osteotylus extender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122392 CN1127324C (en) | 2000-09-21 | 2000-09-21 | Automatically and gradually advancing osteotylus extender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1286074A true CN1286074A (en) | 2001-03-07 |
| CN1127324C CN1127324C (en) | 2003-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00122392 Expired - Fee Related CN1127324C (en) | 2000-09-21 | 2000-09-21 | Automatically and gradually advancing osteotylus extender |
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| Country | Link |
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| CN (1) | CN1127324C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466321A (en) * | 2006-04-06 | 2009-06-24 | 新特斯有限责任公司 | Remotely adjustable tissue displacement device |
| US8894663B2 (en) | 2006-04-06 | 2014-11-25 | DePuy Synthes Products, LLC | Remotely adjustable tissue displacement device |
| CN105287073A (en) * | 2015-10-28 | 2016-02-03 | 王平山 | Bone growth automated device applied to subcutaneous tissue |
| CN107808421A (en) * | 2017-10-25 | 2018-03-16 | 国网山东省电力公司莒县供电公司 | Electric power first-aid work order timeout treatment system and processing method |
| CN107997817A (en) * | 2017-11-21 | 2018-05-08 | 湖南辉讯企业管理有限公司 | A kind of screw-driven formula arm of force bone distraction device |
| CN115919435A (en) * | 2023-03-02 | 2023-04-07 | 上海理工大学 | Intelligent constant control external fixation extension support |
-
2000
- 2000-09-21 CN CN 00122392 patent/CN1127324C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101466321A (en) * | 2006-04-06 | 2009-06-24 | 新特斯有限责任公司 | Remotely adjustable tissue displacement device |
| CN101466321B (en) * | 2006-04-06 | 2013-08-14 | 新特斯有限责任公司 | Remotely adjustable tissue displacement device |
| US8894663B2 (en) | 2006-04-06 | 2014-11-25 | DePuy Synthes Products, LLC | Remotely adjustable tissue displacement device |
| US9259243B2 (en) | 2006-04-06 | 2016-02-16 | DePuy Synthes Products, Inc. | Remotely adjustable tissue displacement device |
| US10105130B2 (en) | 2006-04-06 | 2018-10-23 | DePuy Synthes Products, Inc. | Remotely adjustable tissue displacement device |
| CN105287073A (en) * | 2015-10-28 | 2016-02-03 | 王平山 | Bone growth automated device applied to subcutaneous tissue |
| CN107808421A (en) * | 2017-10-25 | 2018-03-16 | 国网山东省电力公司莒县供电公司 | Electric power first-aid work order timeout treatment system and processing method |
| CN107808421B (en) * | 2017-10-25 | 2021-01-29 | 国网山东省电力公司莒县供电公司 | Power line repair work order timeout processing system and processing method |
| CN107997817A (en) * | 2017-11-21 | 2018-05-08 | 湖南辉讯企业管理有限公司 | A kind of screw-driven formula arm of force bone distraction device |
| CN107997817B (en) * | 2017-11-21 | 2020-12-01 | 尹刚 | Thread transmission type force arm orthopedic traction device |
| CN115919435A (en) * | 2023-03-02 | 2023-04-07 | 上海理工大学 | Intelligent constant control external fixation extension support |
| CN115919435B (en) * | 2023-03-02 | 2024-04-05 | 上海理工大学 | Intelligent constant control external fixation extension bracket |
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| Publication number | Publication date |
|---|---|
| CN1127324C (en) | 2003-11-12 |
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According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 122392.5 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 255132.2 utility model patent to be given up, and in the 19 volume of the 46 issue of the new type of communique on the patent right to abandon the announcement. |
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