CN202920793U - Minimally invasive fixing expanding step-by-step sleeve device - Google Patents
Minimally invasive fixing expanding step-by-step sleeve device Download PDFInfo
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- CN202920793U CN202920793U CN 201220320930 CN201220320930U CN202920793U CN 202920793 U CN202920793 U CN 202920793U CN 201220320930 CN201220320930 CN 201220320930 CN 201220320930 U CN201220320930 U CN 201220320930U CN 202920793 U CN202920793 U CN 202920793U
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Abstract
A minimally invasive fixing expanding step-by-step sleeve device is mainly composed of an expanding step-by-step sleeve, a screw guide outer sleeve, a screw imbedding device and a connecting bar. The expanding step-by-step sleeve is composed of a step-by-step sleeve, a rotating handle and a puncture needle. The step-by-step sleeve is composed of a group of inner sleeves and outer sleeves, namely, the step-by-step sleeve is composed of at least two layers of circular pipes which are different in diameters and sleeved step-by-step internally and externally. The minimally invasive fixing expanding step-by-step sleeve device has the advantages of being reasonable in design, simple in operation, convenient to operate, accurate in positioning, stable in screw imbedding, good in curative effect, low in cost, capable of imbedding a plurality of screws and fixing at one time and the like. Matting minimally invasive devices such as a punching needle imbedding expanding step-by-step device and an externally adjusting needle imbedding direction device are used, fixing of a common pedicle of vertebral arch screw to multiple-segment centrums is achieved, the accuracy of operations is improved, wound surface and iatrogenic injury are reduced, grafting bones and built-in objects can be imbedded conveniently, operation time and cost are saved, and the minimally invasive fixing expanding step-by-step sleeve device is an ideal operation mating device specially for curing thoracolumbar spine fracture.
Description
Technical field
It is medical apparatus and instruments that this utility model relates to, and more particularly is about bone surgery set, and Wicresoft's fracture fixation of Wicresoft's opening is expanded sleeve device step by step when being used for the treatment of the fracture operations such as breast lumbar vertebra.
Background technology
Lumbar vertebra compression fracture is common spinal fracture, pedicle screw because of its at the superiority of three posts aspect fixing, uses increasingly generally, but conventional therapy is inserted pedicle screw employing Posterior midline approach, peels off to both sides, wound large, hemorrhage many, the hospital stays is long; Need extensively peel off paraspinal muscle in the art, easily cause paraspinal muscle denervation, late period the complication such as dysfunction.Along with the development of less invasive techniques, percutaneous is inserted thoracolumbar fractures treated by internal fixation of pedicle of vertebral arch screws and is day by day caused widely concern.But insert in the pedicle screw at percutaneous puncture, especially have many difficulties in the importing process of inserting and indulging rod of screw in many vertebral bones reefing, and can not be used for the more segmental thoracic lumbar vertebra fracture.Routine is inserted the designed and use for conventional therapy of pedicle screw operating theater instruments, and the posterior Pedicle screw (such as hollow Pediculus arcus vertebrae screw) of some other particular design, need the pedicle screw of special matched, cost is higher, greatly increases the patient burden.Therefore, in the urgent need to designing a kind of mis instruments of using for Wicresoft's pedicle nail fixation for treatment operation for thoracolumbar fractures, can expand step by step opening, fix by Minimally Invasive Surgery percutaneous multi-segmental, common pedicle screws system, be conducive to micro-wound percutaneous pedicle screw fixation system in treatment lumbar vertebra compression fracture, will alleviate patient treatment misery and financial burden.
Summary of the invention
The object of the present invention is to provide and a kind ofly can eliminate above-mentioned shortcoming, have rational in infrastructure, operation is simple, easy to operate, accurate positioning, put that nail is firm, good effect, cost is low, the patient suffering is light, financial burden is little, can follow closely Wicresoft's fracture fixation of inserting characteristics such as one-time fixing more expands step by step sleeve device.Especially adopt lumbar vertebra compression fracture way of escape percutaneous to put and implant the pedicle screw technique for fixing, having developed punchinges puts that pin enlarges step by step, external regulation type is inserted the supporting mis instruments such as pedicle screw direction, realized that common pedicle screw is to multi-segmental vertebral body technique for fixing, insert to make things convenient for the screw in the fracture operation, improve the accuracy that screw is inserted, reduce the little and operating time of wound face, improved operation method and therapeutic effect.Captured Minimally Invasive Surgery and inserted the difficulty of pedicle screw, reduced iatrogenic injury, the bone grafting in the convenient operation and the placement of inside-fixture, simplify simultaneously operation technique, reducing operation wound, save operating time and manpower, is the supporting apparatus of operation of desirable treatment lumbar vertebra compression fracture special use.
Wicresoft of the present utility model fracture fixation is expanded sleeve device step by step mainly by expanding step by step sleeve, screw guiding outer sleeve, screw inserter, connecting bar construction, wherein: expand step by step sleeve by sleeve, rotary handle, the hole of threading a needle form step by step, wherein sleeve is to be made of one group of inside and outside sleeve step by step, namely has at least two-layer above diameter difference, the inside and outside pipe that is nested step by step to form.Round buss, sleeve handle, rod pin that described screw guiding outer sleeve is fastened by a pair of symmetry, coupling form; wherein round buss is to be made of hollow semicylinder and conehead; in the semicylinder upper end sleeve handle is installed; be combined into a protection sleeve by the two half-cylinders docking; sleeve handle in the semicylinder upper end is pegged graft up and down, becomes a pair of sleeve handle with pin rod fixed combination.
Describedly expanding step by step sleeve, screw guiding outer sleeve, screw inserter, connecting rod is to be made by medical macromolecular materials or medical metal material or stainless steel material.This Wicresoft's fracture fixation is expanded step by step sleeve device and is mainly comprised and expand step by step sleeve (be adjustable nail to by expanding sleeve), screw guiding outer sleeve, the screw inserter, connect the formations such as rod, wherein: the described sleeve of expanding step by step is sleeve step by step, rotary handle, the compositions such as hole of threading a needle, wherein sleeve is to have one group of inside and outside sleeve to consist of step by step, namely have at least two-layer above diameter different, inside and outside the pipe that is nested step by step form, to realize enlarging step by step Wicresoft's strip off, the convenient purpose of screw of accurately inserting, leave U-shaped groove at the two ends of sleeve step by step, the U-shaped groove direction in upper end of adjusting sleeve step by step during operation is consistent, with under the direction of U-shaped groove also consistent, just can in lower U-shaped groove, accurately import vertical rod, thereby realize the effect that many nails one-time fix.Above-mentioned inside and outside sleeve is that the be nested circular sleeve at interval of one group of internal-and external diameter coupling consists of, and this inside and outside sleeve has the composition that is nested of the circular sleeve more than 1 layer at least; This is expanded step by step sleeve and is mainly used in expansion formation service aisle, makes things convenient for inserting and vertical rod importing of screw.With tradition step by step the difference of sleeve be: 1. the middle epimere of each outer sleeve leaves an adjustable rotary handle, for hand-held laborsaving, smooth operation, preferably can select the both arms rotary handle, also can select the single-arm rotating handle, the nearly sleeve of handle place can leave puncturing hole, the aperture of this puncturing hole is greater than 1.5mm, at least can hold the puncturing hole that the 1.5mm Kirschner wire passes, Kirschner wire passes the transverse process root that sleeve can be fixed in the place sections in this hole, to keep correct home position and direction, the accurate location that is conducive to pedicle screw is inserted; 2. U-shaped groove is all left at the up and down two ends of outer sleeve, and the U-shaped groove direction at two ends is consistent, be convenient in the same way adjusted in concert, after making all the sleeve upper end groove direction adjustment of vertebral body homonymy consistent, it is also thereupon consistent synchronously to drive all lower end groove direction, and connect outer sleeve and the screw inserter that inserts in the sleeve step by step by connecting bar, adjust the direction of the U-shaped groove of screw of inserting in the vertebral body by connecting bar attachment screw inserter according to outer sleeve upper end groove direction, the U-shaped groove direction in two ends is consistent up and down with outer sleeve to make the U-shaped groove direction of screw nail afterbody, adjust the screw orientation, make in the disposable smooth and easy groove that passes many screws nail afterbodys of screw vertical connecting rod, realized that many nails are inserted to one-time fix connection.
The round buss that described screw guiding outer sleeve is fastened by a pair of symmetry, coupling, sleeve handle, rod pin etc. form; wherein round buss is that hollow semicylinder and conehead consist of; in the semicylinder upper end sleeve handle is installed; the two half-cylinders docking is combined into a protection sleeve; sleeve handle on semicylinder is pegged graft up and down and is become a pair of sleeve handle with pin rod fixed combination; do not injure the skin incision position when being convenient to put tack operation, alleviated widely patient's misery.
Matching used screw inserter is sleeve, handle, pull bar, chock plug, connection handle are arranged, to revolve the formations such as rod, trocar sheath with it, wherein, pull bar is the hollow bar, be convenient to penetrate in the guide pin, handle and chock plug are connected to the two ends of pull bar, handle can or be fixedly connected with the pull bar activity, convenient hand-held the use; Chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove of screw nail afterbody, and the direction of U-shaped groove is consistent on regulating nail tail groove direction and the outer sleeve, makes things convenient for vertical connecting rod to insert in the lower U-shaped groove of outer sleeve; Revolve rod and connection handle and be enclosed within successively on the pull bar, revolve rod can be on pull bar rotary moving, the adjusting yoke axial location; Between pull bar and chock plug, leave one group of fixing external screw thread, can be connected with the female thread coupling that screw is followed closely afterbody, in putting the nail process, be convenient to position and the direction of adjustment screw; Connection handle is fixed on pull bar upper end, leaves groove on the connection handle and interlocks with the tongue coupling that connects on the rod, is convenient to when putting nail internally position and the direction of adjustment screw; Jacket casing is buckled in outside the pull bar, consists of the pull bar general name.A groove is left in the stage casing of screw inserter, can its direction with the U-shaped groove in outer layer sleeve upper end be adjusted to by conjugation handle consistently, and then indirectly reaches the direction purpose consistent with the sleeve groove direction of adjusting the U-shaped groove of screw nail tail.
With it matching used connecting bar (or claim connection handle) be the plush copper of connection is arranged, connect tack, connect barred body connect as one consist of, wherein, connecting plush copper is to connect the top axial projection of barred body, can be connected with the groove coupling on the screw inserter rotary handle, regulate direction and the position of pedicle screw by the screw inserter; The pitman lower end is for connecting the plano-convex head, can be connected with outer sleeve upper end groove coupling, being used for outer sleeve is connected with the screw inserter, consistent with the direction of outer sleeve groove by adjusting screw inserter drive nail tail groove, usually outer vertical connecting rod is inserted on the consistent outer sleeve of one group of groove direction, the groove direction of regulating pedicle screw by the screw inserter is consistent with outer sleeve upper end groove direction, be convenient to vertical connecting rod and be applied in the pedicle screw nail tail groove from outer sleeve lower end groove is smooth and easy, realize the fixing purpose of disposable many nails.
This utility model belongs to one of serial lumbar vertebra compression fracture way of escape mis instruments, insert Pedicle Screw Fixation For Treatment of Thoracolumbar Fracture with percutaneous in the Rhizoma Atractylodis Macrocephalae, it can select medical metal material to be processed into, and preferably selects the medical stainless steel material, long service life is convenient to the Reusability of sterilizing.
Use procedure in serial mis instruments: patient's general anesthesia, the patient body ventricumbent position, abdominal part is unsettled.Telltale mark is hindered vertebra and the pedicle of vertebral arch body surface projection of vertebra up and down thereof under the C arm machine, along the conventional entry point center pillar to the vertebral body that punctures, insert three pieces of guide pins, the lower definite guide pin position of C shape arm perspective is good, centered by every piece of guide pin, do longitudinal incision, be about 1.5 cm, cut skin and deep fascia, use the designed step by step expanding sheath cartridge system of the present invention, adjust sleeve pipe by thin to passivity expansion paraspinal muscle step by step successively slightly, make all sleeve pipes groove suitable for reading of a side be in same straight line (this moment sleeve pipe under port recess also be in same straight line), use Kirschner wire and fix all sleeves in the transverse process root of place vertebral body, take out all the other sleeves in the outer sleeve, use hollow screw tap tapping along guide pin, screw openings device opening, use designed screw inserter to be screwed into common pedicle screw hindering on the vertebra the next vertebral body, hinder vertebra and be screwed into Universal pedicle screw, re-use the direction that connecting bar (or claiming connection handle) is adjusted the U-shaped groove of pedicle screw nail tail one by one, make the complete sleeve slot opening of itself and adjusted direction consistent.Selecting appropriate length angle hold-down bars is vertical connecting rod, by hindering the skin incision of the upper vertebral body screw of vertebra, pastes vertebral plate and interts one by one to the next screw, and traction patient spinal column struts, locks hold-down bars.Prepare implant bed between vertebral plate with the dentation curet, Trephine for spondylopathy Wicresoft takes from the body ilium, utilize Wicresoft's pressurization bone grafting instrument capable after outside bone grafting.Find to have outstanding effect through clinical practice, for example: Minimally Invasive Surgery apparatus of the present invention, do not need to use the screw of particular design in the use, the screw with U-shaped groove structure that all conventional therapies use all can support the use with this apparatus.
Wicresoft of the present utility model lumbar vertebra compression fracture pedicle nail fixedly multi-segmental pedicle screw device has solved the problem that the operation for thoracolumbar fractures wound is large for a long time, the time long, the patient suffering is large, burden heavily waits existence, this apparatus has the Position Design that 1. is fixed in transverse process, the cannula system outer sleeve navigation designing with particular groove, is conducive to inserting of screw; 2. exclusive step by step expansion sleeve, put nail guiding outer sleeve, the screw inserter is followed closely tail groove integration direction adjusted design with screw, greatly makes things convenient for the importing of vertical connecting rod; The use of this mis instruments, greatly reduce operating time, perspective number of times, amount of bleeding and infect probability, reduce the complication such as the iatrogenic lumbago and backache of postoperative, second day after operation just can be walked with descending, evident in efficacy, be the supporting apparatus of operation of desirable treatment lumbar vertebra compression fracture special use.
Description of drawings
Fig. 1: expand step by step sleeve combinative structure schematic top plan view
The left TV structure generalized section of Fig. 2: Fig. 1
Fig. 3: handle arrangement schematic top plan view among Fig. 1
Fig. 4: sketch map is looked on a handle arrangement left side among Fig. 1
Fig. 5: tube-in-tube structure sketch map step by step among Fig. 2
Fig. 6: Snap ring structure sketch map among Fig. 2
Fig. 7: Snap ring structure schematic top plan view among Fig. 6
Fig. 8: hold-down screw structural representation among Fig. 1
Fig. 9: screw guiding outer sleeve combinative structure schematic top plan view
The left TV structure sketch map of Figure 10: Fig. 9
Figure 11: semicircle tube-in-tube structure generalized section among Figure 10
The right sketch map of looking of Figure 12: Figure 11
Figure 13: the recessed handle arrangement sketch map of Fig. 9 middle sleeve
Figure 14: plan structure sketch map among Figure 13
Figure 15: the protruding handle arrangement sketch map of Fig. 9 middle sleeve
Figure 16: plan structure sketch map among Figure 15
Figure 17: pin bar structure schematic top plan view among Fig. 2
Figure 18: sell excellent nut structure sketch map
Among the figure:
1-is U groove, 7-sleeve fixing hole, 8-sleeve groove under sleeve, 2-handle, 3-snap ring, 4-hold-down screw, the upper U groove of 5-, the 6-step by step, part 3 snap rings are pressed in part 2 handle grooves, part 2 is inserted in part 1 sleeve, snap ring just in time snaps in the groove on the sleeve, and handle can rotate freely and can not get loose in groove;
The recessed handle of 9-sleeve, the protruding handle of 10-sleeve, 11-round buss, 12-sell excellent nut, 13-rod pin, 14-round buss internal channel.
The specific embodiment
Further specify by reference to the accompanying drawings combinative structure of the present utility model:
Wicresoft's fracture fixation is as shown in the figure expanded step by step sleeve device and is mainly comprised and expand step by step sleeve, screw guiding outer sleeve, screw inserter, connect rod, pressure bone grafting instrument, hollow screw tap, screw openings device, screw, distraction forcep formation, wherein: expand step by step sleeve and be the step by step composition such as sleeve, rotary handle, the hole of threading a needle, wherein sleeve is to have one group of inside and outside sleeve to consist of step by step, namely has at least two-layer above diameter difference, the inside and outside pipe that is nested step by step to form.The round buss that described screw guiding outer sleeve is fastened by a pair of symmetry, coupling, sleeve handle, rod pin etc. form; wherein round buss is that hollow semicylinder and conehead consist of; in the semicylinder upper end sleeve handle is installed; the two half-cylinders docking is combined into a protection sleeve, and pegging graft up and down at the sleeve handle of semicylinder upper end becomes a pair of sleeve handle with pin rod fixed combination.Described screw inserter be sleeve, handle, pull bar, chock plug, connection handle arranged, revolve rod, trocar sheath consists of, wherein, pull bar is the hollow bar, handle and chock plug are connected to the two ends of pull bar, handle can or be fixedly connected with the pull bar activity, chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove of screw nail afterbody.Described connecting bar be have connect plush copper, connect tack, connect barred body connect as one consist of, wherein, connecting plush copper is to connect the top axial projection of barred body, can be connected with the groove coupling on the screw inserter rotary handle, regulate direction and the position of pedicle screw by the screw inserter; The pitman lower end can be connected with outer sleeve upper end groove coupling for connecting the plano-convex head, is used for outer sleeve and is connected with the screw inserter.Described screw refers to pedicle screw, to have nail bar, nail tip section, nail afterbody to consist of, it is to be connected with nail tip section, nail afterbody respectively at the two ends of nail bar, wherein, be threaded on the nail bar, nail tip section leaves spur, the female groove of nail the foot section brought, this groove can be filled in the chock plug of screw inserter or run through the screw vertical connecting rod, the direction of adjustment screw and location, and screw is accurately located and is inserted.Described Wicresoft pressurization bone grafting instrument by bone grafting cylinder, interior plunger tip, add pressure handle, fixed outer cylinder is formed, be gun type of gas burner, wherein, fixed outer cylinder is housed adding pressure handle, fixed outer cylinder and bone grafting cylinder, interior plunger tip are flexibly connected according to this, adding pressure handle is to have push rod, pistol to dial handle, gun stock consists of, pistol is installed in gun stock dials handle, pistol is dialled on the tooth road that handle withstands on push rod, pistol is dialled handle and is moved forward and backward along the tooth road of push rod and promote push rod and withstand interior plunger tip and bone grafting cylinder and be nested or withdraw from, and interior plunger tip can eject the bone-grafting material pressure in the bone grafting cylinder.Described screw openings device is to be made of rose bit bar, reaming conehead, handle etc., it is to connect respectively handle and reaming conehead at the two ends of rose bit bar, and wherein, the reaming conehead is by the drill bit with little tooth, be used for boring the particle that opens seam, hollow screw tap accurately gets out screw thread; Handle is movable with the rose bit bar or be fixedly connected with, and the rose bit bar is the hollow bar.Described hollow screw tap is to be made of screw tap bar, tap holder, handle, it is at the two ends of screw tap bar difference connecting filament tap holder and handle, wherein, the screw tap bar is outer with the thread road, the screw tap bar is the hollow bar, screw tap bar and tap holder are connected as a single entity, and tap holder is the drill bit shape, and handle is movable with the screw tap bar or be fixedly connected with.Described open mouth tongs are made of left and right sides clamp piece, adjusting nut, adjusting screw(rod), pin, movable latch, and wherein, left and right sides clamp piece all leaves half round cut take pin as fulcrum on two binding clips.Above-mentioned apparatus preferably selects medical macromolecular materials or medical metal material or stainless steel material to be processed into.
Claims (3)
1. Wicresoft's fracture fixation is expanded sleeve device step by step, it is characterized in that mainly by expanding step by step sleeve, screw guiding outer sleeve, screw inserter, connecting bar construction, wherein: expand step by step sleeve by sleeve, rotary handle, the hole of threading a needle form step by step, wherein sleeve is to be made of one group of inside and outside sleeve step by step, namely has at least two-layer above diameter difference, the inside and outside pipe that is nested step by step to form.
2. Wicresoft as claimed in claim 1 fracture fixation is expanded sleeve device step by step; it is characterized in that round buss, sleeve handle, rod pin that described screw guiding outer sleeve is fastened by a pair of symmetry, coupling form; wherein round buss is to be made of hollow semicylinder and conehead; in the semicylinder upper end sleeve handle is installed; be combined into a protection sleeve by the two half-cylinders docking; sleeve handle in the semicylinder upper end is pegged graft up and down, becomes a pair of sleeve handle with pin rod fixed combination.
3. Wicresoft as claimed in claim 1 fracture fixation is expanded sleeve device step by step, and it is characterized in that describedly expanding step by step sleeve, screw guiding outer sleeve, screw inserter, connecting rod is to be made by medical macromolecular materials or medical metal material or stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320930 CN202920793U (en) | 2012-07-04 | 2012-07-04 | Minimally invasive fixing expanding step-by-step sleeve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320930 CN202920793U (en) | 2012-07-04 | 2012-07-04 | Minimally invasive fixing expanding step-by-step sleeve device |
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| Publication Number | Publication Date |
|---|---|
| CN202920793U true CN202920793U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320930 Expired - Fee Related CN202920793U (en) | 2012-07-04 | 2012-07-04 | Minimally invasive fixing expanding step-by-step sleeve device |
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| CN (1) | CN202920793U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969036A (en) * | 2017-06-01 | 2018-12-11 | 崔家鸣 | Expander for arthroscopic shoulder surgery |
| CN111329630A (en) * | 2020-02-28 | 2020-06-26 | 青岛大学附属医院 | Fully transparent spine endoscopic auxiliary lumbar fusion expandable channel system |
| CN111818871A (en) * | 2018-02-13 | 2020-10-23 | 克瑞肖株式会社 | Medical screw surgical instrument, surgical robot having medical screw surgical instrument, and surgical method using surgical robot having medical screw surgical instrument |
-
2012
- 2012-07-04 CN CN 201220320930 patent/CN202920793U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108969036A (en) * | 2017-06-01 | 2018-12-11 | 崔家鸣 | Expander for arthroscopic shoulder surgery |
| CN108969036B (en) * | 2017-06-01 | 2023-10-20 | 崔家鸣 | Dilator for shoulder arthroscopy operation |
| CN111818871A (en) * | 2018-02-13 | 2020-10-23 | 克瑞肖株式会社 | Medical screw surgical instrument, surgical robot having medical screw surgical instrument, and surgical method using surgical robot having medical screw surgical instrument |
| CN111329630A (en) * | 2020-02-28 | 2020-06-26 | 青岛大学附属医院 | Fully transparent spine endoscopic auxiliary lumbar fusion expandable channel system |
| CN111329630B (en) * | 2020-02-28 | 2022-02-08 | 青岛大学附属医院 | Fully transparent spine endoscopic auxiliary lumbar fusion expandable channel system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20160704 |
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