CN1113746A - Lumber spondylolisthesis reprositor - Google Patents
Lumber spondylolisthesis reprositor Download PDFInfo
- Publication number
- CN1113746A CN1113746A CN 94110638 CN94110638A CN1113746A CN 1113746 A CN1113746 A CN 1113746A CN 94110638 CN94110638 CN 94110638 CN 94110638 A CN94110638 A CN 94110638A CN 1113746 A CN1113746 A CN 1113746A
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- China
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- lifting rod
- transverse arm
- push
- pull bar
- positor
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Abstract
The present invention relates to a medical equipment. It is a lumbar spondylolisthesis repositor applicable to operative reposition of olisthy lumbar vertebrae in the department of orthopedic surgery. Said repositor consists of cross arm, lift-and-pull rod and push-and-pull rod which are respectively vertically connected on both ends of the cross arm and adjusting screw bolts respectively mounted on the middles of the above-mentioned rods, and all the above-mentioned parts are made of stainless steel. The lift-and-pull rod is passed through the hole of the cross arm, and is fixed by means of stop nut, and can be moved up and down, and the push-and-pull rod is fixed in the groove of another end of the cross arm by means of fixing column, and can be telescoped leftwards and rightwards, and the adjusting screw bolts are used for controlling and regulating the angle between rods and the space length between both laminectomy retractors placed on the tail ends of both pull rods so as to.....
Description
The invention belongs to a kind of medical apparatus and instruments, relate to the medical instruments that Orthopeadic Surgery resets to the lumbar spondylolisthesis internal fixation.
The a certain vertebral body that lumbar spondylolisthesis is meant lumbar vertebra is shifted as wound, congenital dysplasia or degeneration etc. for some reason, so that causes spinal canal stenosis, and compressing spinal cord and nerve cause lumbago and skelalgia, handicapped, very person's disability.For the treatment of lumbar spondylolisthesis, be the difficult problem of domestic and international orthopedics expert's research and inquirement for a long time always.Development along with medical science, further understanding to human anatomy, biomechanics, this seminar finds with the operative reduction internal fixation more satisfactory in conjunction with the operation method prognosis of appropriate bone-graft fusion and loosen adhesion removal compressing for many years by a large amount of basic research and clinical practice.This operation method is generally acknowledged by the colleague expert, is present optimal treatment way.But this kind operative reduction inner fixed law must be furnished with corresponding apparatus hard interbody space is drawn back, with the vertebral body recovery of slippage.But still there is not this kind apparatus at present both at home and abroad.
The objective of the invention is to design lumber spondylolisthesis reprositor a kind of easy to use, time saving and energy saving, satisfactory for result, to adapt to the needs of above-mentioned operation method.
The present invention makes " " type (as shown in Figure 1) with rustless steel or other hard metals, alloy material, mainly is made of a transverse arm and lifting rod and the push-pull bar that is connected on the transverse arm two ends that hang down.One end of transverse arm is provided with vertical circular hole, and the circular hole lower end connects lifting rod sleeve pipe, tube ends socket one gland, lifting rod passes gland, lifting rod sleeve pipe and circular hole, be fixed on the transverse arm with setscrew nut, can on put and, adjust its length by tuning setscrew nut and gland; The transverse arm other end is provided with groove, push-pull bar by its upper end fixing hole be fixed in the groove, can about take down the exhibits.Be horizontally set with an adjusting screw(rod) at push-pull bar and lifting rod stage casing,, realize that push-and-pull separates the purpose that intervertebral space resets the vertebral body of slippage with the laminectomy retractor spacing of angle between regulating and controlling lifting rod and the push-pull bar and two bar ends.Describe in detail below in conjunction with accompanying drawing.
Its structure of the present invention is made up of transverse arm 1, lifting rod 2, push-pull bar 3, adjusting screw(rod) 4, gland 5, setscrew nut 6, lifting rod sleeve pipe 7 etc. as shown in Figure 1 and Figure 2.
Transverse arm 1 long 5.5～6.5cm, wide 1.5～2.0cm, thick 1.0～1.8cm, the one end is established circular hole, and the hole wall lower end is threaded; Be connected with lifting rod 2 by lifting rod sleeve pipe 7.The other end is hollow groove, links to each other with push-pull bar 3.
Lifting rod 2(is shown in Fig. 3,4) be cylinder, long 21～27cm, diameter 0.6～0.8cm, 5～7cm of upper end establishes screw thread, and end is a turning shape laminectomy retractor 8A.Lifting rod sleeve pipe 7 is a hollow pipe, long 11～12cm, and inner wall smooth, internal diameter and lifting rod diameter adapt; Screw thread is established on the outer wall top, is screwed on the transverse arm circular hole, and is fixed on the transverse arm by the lateral fixed screw 11 of transverse arm; Lower end 3.5～4.5cm outer wall is established screw thread, adapts with the inner thread of gland 5.Gland 5 long 3～3.5cm are " " shape, and the upper end is a sleeve pipe, and inwall is established screw thread and 7 sockets of lifting rod sleeve pipe; The lower end is a pressing plate, and the bottom hole both sides are provided with groove, adapts with spinal fixation circle (separate case application).Lifting rod 2 passes gland 5, lifting rod sleeve pipe 7 and transverse arm circular hole, is being fixed on the transverse arm 1 with setscrew nut 6 sockets above the transverse arm.By regulating the length that setscrew nut 6 and gland 5 are regulated lifting rod.
Push-pull bar 3(is shown in accompanying drawing 5,6) long 18～19cm, the cylinder of diameter 1～1.3cm, the lower end is a turning shape laminectomy retractor 8A; The stage casing is provided with the horizontal screw 12 that passes for adjusting screw(rod) 4; Upper end 1.5～2cm is flat and is provided with a fixing hole, is fastened on by fixed leg 9 in the hollow groove of the transverse arm other end, is free interior receipts, abduction shape.
Adjusting screw(rod) 4 long 5.5～7cm, diameter, screw thread and screw 12 are complementary, passing this hole is a knop in vertebra pull bar 3 sides, lifting rod 2 side joint one " " shape fixation clamps 10, the size of fixation clamp 10 and lifting rod sleeve pipe 7 adapt, by distance between two laminectomy retractor 8A, the 8B on adjusting screw(rod) 4 regulating and controlling lifting rods and the push-pull bar.
When the present invention uses (as shown in Figure 7), earlier spinal fixation circle (separate case application) is fixed on the spinal column of waiting to reset, two laminectomy retractor 8A and 8B are hooked in respectively in the Nervous tissue of vertebral body adjacent (upper and lower) vertebral plate of waiting to reset, gland 5 horizontal being stuck on the spinal fixation circle.With the ring for fixing is fulcrum, and turn adjusting screw(rod) 4 makes between laminectomy retractor 8A and the 8B apart from continuing to increase, thereby the upper and lower gap of the vertebral body of slippage is slowly drawn back, and is convenient to the slippage vertebral body and resets; The turn setscrew nut 6 then, and lifting rod 2 is constantly risen, and carry on two laminectomy retractors making when lifting on the adjacent vertebral bodies, because the pressure effect of gland and ring for fixing sets back the vertebral body of slippage.Use fixation with steel wire on the vertebral plate of both sides on the spinal fixation circle after resetting, to prevent vertebral body slippage again, folding resets except that lumbar spondylolisthesis then, and resetting finishes.After treating the healing of slippage vertebral body, folding removes the spinal fixation circle again.
The present invention is through the clinical trial result ideal, and is time saving and energy saving, easy to operate, and safety meets requirements of operation fully.Cooperate the spinal fixation circle to use 126 routine patients, the postoperative effect ideal accomplishes the end in view fully.
Accompanying drawing 1,2 is overall schematic of the present invention.Wherein 1-transverse arm, 2-lifting rod, 3-push-pull bar, 4-adjusting screw(rod), 5-gland, 6-setscrew nut, 7-lifting rod sleeve pipe, 8A and 8B-laminectomy retractor, 9-fixed leg, 10-fixation clamp, 11-fixed screw, the horizontal screw of 12-.
Accompanying drawing 3 is the present invention's lifting rod side view.
Accompanying drawing 4 is the present invention's lifting rod front view.
Accompanying drawing 5 is the present invention's push-pull bar side view.
Accompanying drawing 6 is the present invention's push-pull bar front view.
Accompanying drawing 7 uses (function) sketch map for the present invention.
Claims (6)
1, a kind of lumber spondylolisthesis reprositor of forming by transverse arm, lifting rod, lifting rod sleeve pipe and vertebra pull bar etc., transverse arm one end that it is characterized in that this positor is provided with circular hole, an end is provided with groove, and lifting rod 2 and push-pull bar 3 pass circular hole and the vertical two ends that are connected on transverse arm of groove respectively; Stage casing at lifting rod 2 and push-pull bar 3 is provided with adjusting screw(rod) 4.
2, the lumber spondylolisthesis reprositor according to claim 1 is characterized in that lifting rod sleeve pipe 7 epimeres of this positor connect the transverse arm circular hole, and the hypomere outer wall is established screw thread, socket one gland 5.
3, according to claim 1 and 2 described lumber spondylolisthesis reprositors, it is characterized in that the lifting rod 2 of this positor is a cylinder, end is a turning shape laminectomy retractor; Epimere is established screw thread, passes gland 5, lifting rod sleeve pipe 7 and transverse arm circular hole, and the setscrew nut 6 through the circular hole top is connected with transverse arm is vertical.
4,, it is characterized in that the pressing plate bottom surface of the gland 5 of this positor is provided with groove according to claim 1 and 2 described lumber spondylolisthesis reprositors.
5, according to claim 1 and 2 described lumber spondylolisthesis reprositors, it is characterized in that the push-pull bar 3 of this positor is a cylinder, end is a turning shape laminectomy retractor, upper end band fixing hole, fixed leg passes this hole and is fixed in the transverse arm groove.
6, the lumber spondylolisthesis reprositor according to claim 1 is characterized in that the horizontal adjusting screw(rod) 4 of adorning of lifting rod and push-pull bar stage casing of this positor, and adjusting screw(rod) passes across the screw in push-pull bar stage casing, the terminal fixation clamp that connects, and clip is on the lifting rod sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110638 CN1113746A (en) | 1994-06-17 | 1994-06-17 | Lumber spondylolisthesis reprositor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110638 CN1113746A (en) | 1994-06-17 | 1994-06-17 | Lumber spondylolisthesis reprositor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1113746A true CN1113746A (en) | 1995-12-27 |
Family
ID=5034585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110638 Pending CN1113746A (en) | 1994-06-17 | 1994-06-17 | Lumber spondylolisthesis reprositor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1113746A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810509A (en) * | 2010-04-23 | 2010-08-25 | 杭州市余杭区第一人民医院 | Spreader for unilateral expansive open-door vertebra board |
| CN101940494A (en) * | 2010-10-14 | 2011-01-12 | 上海理工大学 | Special installation tool of internally-installed splayed plate in orthopaedic corrective surgery |
| CN102429712A (en) * | 2011-11-28 | 2012-05-02 | 上海拓腾医疗器械有限公司 | Spondylolisthesis repositioning device and repositor thereof |
| CN102846344A (en) * | 2012-09-29 | 2013-01-02 | 苏州博习医疗科技有限公司 | Minimally invasive expansion tool used for spinal canal expansion |
| CN102895017A (en) * | 2012-09-20 | 2013-01-30 | 杭州市余杭区第一人民医院 | Reset pliers for spreading and lifting lumbar vertebral bodies |
-
1994
- 1994-06-17 CN CN 94110638 patent/CN1113746A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810509A (en) * | 2010-04-23 | 2010-08-25 | 杭州市余杭区第一人民医院 | Spreader for unilateral expansive open-door vertebra board |
| CN101940494A (en) * | 2010-10-14 | 2011-01-12 | 上海理工大学 | Special installation tool of internally-installed splayed plate in orthopaedic corrective surgery |
| CN101940494B (en) * | 2010-10-14 | 2012-06-13 | 上海理工大学 | Special installation tool of internally-installed splayed plate in orthopaedic corrective surgery |
| CN102429712A (en) * | 2011-11-28 | 2012-05-02 | 上海拓腾医疗器械有限公司 | Spondylolisthesis repositioning device and repositor thereof |
| CN102429712B (en) * | 2011-11-28 | 2013-09-18 | 上海拓腾医疗器械有限公司 | Spondylolisthesis repositioning device and repositor thereof |
| CN102895017A (en) * | 2012-09-20 | 2013-01-30 | 杭州市余杭区第一人民医院 | Reset pliers for spreading and lifting lumbar vertebral bodies |
| CN102895017B (en) * | 2012-09-20 | 2015-01-21 | 杭州市余杭区第一人民医院 | Reset pliers for spreading and lifting lumbar vertebral bodies |
| CN102846344A (en) * | 2012-09-29 | 2013-01-02 | 苏州博习医疗科技有限公司 | Minimally invasive expansion tool used for spinal canal expansion |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |