CN103006312B - Minimally invasive bone fracture screw inserts opener - Google Patents
Minimally invasive bone fracture screw inserts opener Download PDFInfo
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- CN103006312B CN103006312B CN201210229622.2A CN201210229622A CN103006312B CN 103006312 B CN103006312 B CN 103006312B CN 201210229622 A CN201210229622 A CN 201210229622A CN 103006312 B CN103006312 B CN 103006312B
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Abstract
It is that respectively connected handle and reaming conehead at the two ends of rose bit bar that minimally invasive bone fracture screw, which inserts opener, the reaming conehead is by the drill bit with micro- tooth, handle and rose bit bar are movable or are fixedly connected, handle, rose bit bar, reaming conehead are sequentially connected, and be coaxially hollow core structures, match insertion with guide pin or screw tap.With it is rational in infrastructure, operation be simple and convenient to operate, the accurate positioning that be open, can limit be pierced into depth the features such as.Solve for a long time, tack operation is put by doctor's feel and observes to be open, the problems such as wound is big, operation risk is big, using hollow and position limiting structure, can be by the small otch passage of Minimally Invasive Surgery, opening is accurately positioned along the direction of guide pin, and voluntarily limits and is pierced into depth, is that pedicle nail is accurately inserted and laid a solid foundation.Operating time and rehabilitation duration are shortened, patient suffering and financial burden is alleviated, is the corollary apparatus for being exclusively used in opening of preferable minimally invasive fracture fixation multi-section screw fixation device tool.
Description
Technical field
It is more particularly on bone surgery set, for treating the bones such as Thoracolumbar disk the present invention relates to being medicine equipment
The minimally invasive bone fracture screw of folding reattachment surgery inserts opener.
Background technology
Thoracolumbar fracture is common spine fracture, and traditional operation is to reset fracture site admittedly with pedicle screw
Fixed, pedicle screw is because having the advantage that three posts are fixed, expanded application, but its modus operandi to be to use to open the back of the body and insert pedicle of vertebral arch
Screw, it is cut in human body back median incision, is peeled off, wound is big, bleeding is more, the hospital stays is long, is increased along otch to both sides
Slight illness and the financial burden of patient are added；Need extension to peel off paraspinal muscle in operation, be easily caused paraspinal muscle and lose innervation, make
Into late period dysfunction, often with the complication such as rear pain in back and loin, stiff.In clinic, existing pedicle screw apparatus is only
Designed by conventional therapy and use, operation trouble, wound are big, patient suffering is big, in percutaneous puncture insert pedicle of vertebral arch
In screw operation, the importing process difficulty for inserting and indulging rod for screw is very big, therefore cannot be used for multi-segmental fixation chest waist
Vertebra is rolled over.For some special posterior Pedicle screw systems, then the pedicle screw of special matched is needed, cost is higher, significantly
Increase patient burden.At present in the urgent need to developing a kind of mis instruments dedicated for percutaneously inserting pedicle screw, it can both make
Fixed with common pedicle screw, the special screws such as Universal pedicle screw are applicable again, while can realize that multi-segmental centrum is consolidated
The fixed actual demand to meet clinic, to mitigate patient burden, increase social and economic benefit.
The content of the invention
Disadvantages mentioned above can be eliminated it is an object of the invention to provide one kind, with rational in infrastructure, operation is simple, operation side
Just, accurate positioning, put nail firm, good effect, cost is low, patient suffering is light, financial burden is small, can follow closely to insert more and one-time fixes
The features such as minimally invasive bone fracture screw insert opener.Implantation pedicle screw is percutaneously put in particular by the thoracolumbar fracture way of escape to consolidate
Determine technology, have developed to punching and put that pin expands step by step, external regulation type inserts the supporting mis instruments such as pedicle screw direction, realize
Common pedicle screw is to multi-segmental centrum technique for fixing, to facilitate the screw in fracture operation to insert, and improves what screw was inserted
The degree of accuracy, reduces that wound face is small and operating time, improves operation method and therapeutic effect.Capture open surgery and insert vertebral arch
The difficulty of root screw, reduces iatrogenic injury, the placement of bone grafting and inside-fixture in convenient operation, while simplifying operation behaviour
Make, reduce operation wound, save operating time and manpower, be the special supporting apparatus of operation of preferable treatment thoracolumbar fracture.
The minimally invasive bone fracture screw of the present invention, which inserts opener, mainly includes expansion sleeve, screw guiding outer sleeve, spiral shell step by step
Nail device for posting, connection rod, pressure bone grafting instrument, hollow screw tap, minimally invasive bone fracture screw insert opener, screw, distraction forcep；Wherein：
Step by step expansion sleeve be made up of sleeve step by step, rotary handle, hole of threading a needle, this step by step sleeve be to be made up of one group of inside and outside sleeve,
I.e. at least by two layers of diameter above be different, the inside and outside pipe being nested step by step is constituted；Screw be oriented to outer sleeve be by a pair it is symmetrical,
Match fasten round buss, sleeve handle, rod pin bank into；Screw device for posting be by sleeve, handle, pull bar, chock plug, connection handle,
Rod, outer tube is revolved to constitute；Being coupled rod is connected as one and is constituted by connection plush copper, connection tack, connection barred body；Pressure bone grafting
Device is made up of bone grafting cylinder, interior plunger tip, pressurization handle, fixed outer cylinder, and in gun type of gas burner, fixed outer cylinder is housed on pressurization handle,
Fixed outer cylinder is flexibly connected successively with bone grafting cylinder, interior plunger tip；Screw is made up of nail rod, nail tip portion, nail afterbody, the two ends of nail rod
It is connected respectively with nail tip portion, nail afterbody；Hollow screw tap is made up of screw tap bar, tap holder, the 3rd handle, the two ends point of screw tap bar
Lian Jie not tap holder and the 3rd handle；Distraction forcep is by left and right clamp piece, adjusting nut, adjusting screw rod, pin, movable latch institute
Constitute, wherein, left and right clamp piece is using movable latch as fulcrum, and it is by rose bit bar, rose bit that minimally invasive bone fracture screw, which inserts opener,
Head, second handle are constituted, and the two ends of rose bit bar respectively connected second handle and reaming conehead, and the reaming conehead is by with micro-
The drill bit of tooth, second handle and rose bit bar are movable or are fixedly connected, and second handle, rose bit bar, reaming conehead connect successively
Connect, and be coaxially hollow core structures, match insertion with guide pin or screw tap.Described opener is by medical metal material or stainless
Steel material is made.Described round buss is made up of hollow semicylinder and conehead, and sleeve hand is provided with semicylinder upper end
Handle, two half-cylinders docking is combined into a round buss, the grafting rod pin fixed Combination above and below the sleeve handle of semicylinder upper end
Into a pair of sleeve handle.Described pull bar is hollow bar, and handle and chock plug are connected to the two ends of pull bar, and handle can be with pull bar
Activity is fixedly connected, and chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove for following closely afterbody in screw.Described connection is convex
Head is the top axial projection in connection barred body, can be connected with the matching grooves on screw device for posting rotary handle, pass through screw
Device for posting adjusts the direction and position of pedicle screw；Pitman lower end is connection tack, can be oriented to outer sleeve upper end with screw
Matching grooves are connected, and be oriented to outer sleeve for screw is connected with screw device for posting.Described screw refers to pedicle screw, be by
Nail rod, nail tip portion, nail afterbody are constituted, and the two ends of nail rod are connected with nail tip portion, nail afterbody respectively, wherein, it is threaded in nail rod,
Nail tip portion leaves spur, follows closely the female groove of the foot section brought, and the groove can fill in the chock plug of screw device for posting or through screw
Vertical connecting rod, the direction of adjusting screw and positioning, screw, which is accurately positioned, to be placed into.Described pressurization handle be by push rod, pistol dial handle,
Gun stock is constituted, and pistol is provided with gun stock and dials handle, pistol is dialled handle and withstood on the tooth road of push rod, and pistol dials tooth of the handle along push rod
The movable promotion push rod in road withstands interior plunger tip and is nested or exits with bone grafting cylinder, and interior plunger tip can be by the bone-grafting material pressure in bone grafting cylinder
Power is ejected.Described reaming conehead is that, by the drill bit with micro- tooth, for boring the particle that opens seam, hollow screw tap accurately gets out screw thread；The
Two handles and rose bit bar are movable or are fixedly connected, and rose bit bar is hollow bar.Thread road is carried outside described screw tap bar,
Screw tap bar is hollow bar, and screw tap bar is connected as a single entity with tap holder, and tap holder is in drill bit shape, the 3rd handle and screw tap bar it is movable or
It is fixedly connected.Described left and right clamp piece is to leave half round cut on two binding clips.Above-mentioned apparatus is by medical macromolecular materials
Or medical metal material is made.
It is (i.e. adjustable that the minimally invasive thoracolumbar fracture nail pedicle fix multi-segmental pedicle screw device mainly includes expansion sleeve step by step
Follow closely to by sheath cylinder), screw be oriented to outer sleeve, screw device for posting, be coupled rod, pressure bone grafting instrument, hollow screw tap, screw openings
Device, screw etc. are constituted, wherein：The described sleeve of expansion step by step is that sleeve, rotary handle, hole of threading a needle etc. are constituted step by step, wherein by
Level sleeve is that have one group of inside and outside sleeve composition, i.e., at least two layers diameter above is different, the inside and outside pipe being nested step by step is constituted,
Expand the minimally invasive purpose for peeling off, conveniently accurately inserting screw step by step to realize, leave U-type groove at the two ends of sleeve step by step, perform the operation
When adjustment sleeve step by step upper end U-type groove direction it is consistent, the direction of U-type groove is also consistent under, just can be accurate in lower U-type groove
Vertical rod is really imported, so as to realize the effect followed closely more and one-time fixed.Above-mentioned inside and outside sleeve is one group of internal-and external diameter matching phase inner room
Every circular sleeve constitute, the circular sleeve that at least more than 1 layer of the inside and outside sleeve is nested composition；This expands sleeve and is mainly used in step by step
Expansion forms service aisle, and facilitate screw inserts and indulge rod importing.Difference with traditional sleeve step by step is：
1. the middle epimere of each outer sleeve leaves an adjustable rotary handle, best for hand-held laborsaving, smooth operation
Both arms rotary handle is can select, also can select can leave puncturing hole, the hole of the puncturing hole at single-arm rotating handle, the nearly sleeve of handle
Footpath is that, more than 1.5mm, can at least hold the puncturing hole that 1.5mm Kirschner wires are passed through, and sleeve can be fixed on institute by Kirschner wire through the hole
Transverse process root in section, to maintain correct home position and direction, is conducive to being accurately positioned for pedicle screw to insert；②
The upper and lower ends of outer sleeve all leave U-shaped groove, and the U-shaped groove direction at two ends is consistent, are easy to synchronous adjustment in the same direction, make centrum
After all sleeve upper recess direction adjustment of homonymy are consistent, drive all lower end groove directions also synchronous consistent therewith, and pass through
Connecting bar connects outer sleeve and the screw device for posting in insertion step by step sleeve, and connecting bar is passed through according to outer sleeve upper recess direction
Attachment screw device for posting adjusts the direction for the screw U-type groove inserted in centrum, screw is followed closely afterbody U-shaped groove direction and overcoat
The U-shaped groove direction of cylinder upper and lower ends is consistent, adjusting screw orientation, makes screw vertical connecting rod disposable smooth through many screws nail
In the groove of afterbody, realize many nails and insert and one-time fix connection.
It is to have the groups such as a pair symmetrical, matching is fastened round buss, sleeve handle, rod pin that described screw, which is oriented to outer sleeve,
Into wherein round buss is that hollow semicylinder and conehead are constituted, and sleeve handle, two half-cylinders are provided with semicylinder upper end
Docking is combined into a protection sleeve, above and below the sleeve handle of semicylinder upper end grafting with pin rod fixed Combination into a pair of sleeve
Handle, skin incision position is not injured when being easy to put tack operation, greatly reduced the pain of patient.
Described screw device for posting is that have sleeve, handle, pull bar, chock plug, connection handle, rotation rod, outer tube etc. to constitute, its
In, pull bar is hollow bar, is easy to penetrate in guide pin, and handle and chock plug are connected to the two ends of pull bar, and handle can live with pull bar
Move or be fixedly connected, facilitate hand-held use；Chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove for following closely afterbody in screw,
Regulating nail tail groove direction is consistent with the direction of U-type groove on outer sleeve, facilitates vertical connecting rod to insert in the lower U-type groove of outer sleeve；
Rotation rod and connection handle are sequentially sleeved on pull bar, and rotation rod can be in rotary moving on pull bar, adjusting yoke axial location；In pull bar and plug
The external screw thread of one group of fixation is left between head, the internal thread matching that afterbody can be followed closely with screw is connected, and is easy to adjust during nail is put
Save the position and direction of screw；Connection handle is fixed on the tongue matching that groove is left on pull bar upper end, connection handle and is coupled on rod
Interlock, be easy to from inside come when putting nail the position and direction of adjusting screw；Sleeve set is buckled in outside pull bar, constitutes pull bar general name.
A groove is left in the stage casing of screw device for posting, can be by conjugation handle by its direction with outer layer sleeve upper end U-type groove
Adjust to consistent, and then reach the direction of the adjusting screw nail tail U-type groove purpose consistent with sleeve recess direction indirectly.
Described screw (or root nail) refers to pedicle screw more, and the pedicle screw is that have nail rod, nail tip portion, nail afterbody
Constitute, it is connected respectively with nail tip portion, nail afterbody at the two ends of nail rod, wherein, it is threaded in nail rod, nail tip portion leaves convex
Point, the nail female groove of the foot section brought (or breach), groove can fill in the chock plug of screw device for posting or vertical through screw
Connecting rod, direction and positioning by screw device for posting adjusting screw, realizes that screw is accurately positioned and is placed into；Put in pedicle screw
During entering, the rotary handle of adjustment screw device for posting is recessed by the groove of screw nail afterbody and outer sleeve upper end by connecting bar
Groove is adjusted to direction unanimously, has reached the consistent effect of inside and outside linkage, direction, realizes purposes of the rod through many nail positioning.Together
When, pedicle screw can need any selection Universal pedicle screw or common pedicle screw according to operation or be applied in combination ten thousand
To with common pedicle screw, cost savings surgery cost.
Described connecting bar (or connection handle) is that have connection plush copper, connection tack, connection barred body to connect as one institute's structure
Into, wherein, connection plush copper is the top axial projection in connection barred body, can be with the matching grooves on screw device for posting rotary handle
Connection, the direction and position of pedicle screw are adjusted by screw device for posting；Pitman lower end is connection plano-convex head, can be with overcoat
Cylinder upper recess matching connection, is connected with screw device for posting for outer sleeve, nail tail groove is driven by adjusting screw device for posting
It is consistent with the direction of outer sleeve groove, generally outer vertical connecting rod is inserted on the consistent outer sleeve of one group of groove direction, passes through spiral shell
The groove direction for following closely device for posting regulation pedicle screw is consistent with outer sleeve upper recess direction, is easy to vertical connecting rod from outer sleeve
Lower end groove is smooth to be applied in pedicle screw nail tail groove, realizes the fixed purpose of disposable many nails.
Described minimally invasive dosing mode device is made up of bone grafting cylinder, interior plunger tip, pressurization handle, fixed outer cylinder, in gun-type knot
Structure, wherein, fixed outer cylinder is housed on pressurization handle, fixed outer cylinder is flexibly connected according to this with bone grafting cylinder, interior plunger tip, and pressurization handle is that have
Push rod, pistol dial handle, and gun stock is constituted, and pistol is provided with gun stock and dials handle, pistol is dialled handle and withstood on the tooth road of push rod, and pistol is dialled
The movable promotion push rod in tooth road of the handle along push rod withstands interior plunger tip and is nested or exits with bone grafting cylinder, and interior plunger tip can be by bone grafting cylinder
In bone-grafting material eject under a certain pressure, by putting the minimally invasive skin incision of nail, accurately insert implant bed, contribute to patient
Early recovery.
Described screw openings device is made up of rose bit bar, reaming conehead, handle etc., and it is at the two ends of rose bit bar
Handle and reaming conehead are respectively connected, wherein, reaming conehead is by the drill bit with micro- tooth, for boring the particle that opens seam, convenient sky
Heart screw tap accurately gets out screw thread；Handle and rose bit bar are movable or are fixedly connected, and rose bit bar is hollow bar, and it is fixed to be easy to import
The minimally invasive enlarging of skin progress at opposed nail position on the pin of position, which is tapping, put nail lays the foundation.
Described hollow screw tap is made up of screw tap bar, tap holder, handle etc., and it is connected respectively at the two ends of screw tap bar
Tap holder and handle, wherein, thread road is carried outside screw tap bar, screw tap bar is hollow bar, be easy to import opposed nail in pilot pin
The sclerotin at position carries out tapping, facilitates the accurate of screw to insert；Screw tap bar is connected as a single entity with tap holder, and tap holder is in drill bit shape,
It is easy to further tapping；Handle and screw tap bar are movable or are fixedly connected, and facilitate hand-held use.
Described open mouth tongs are made up of left and right clamp piece, adjusting nut, adjusting screw rod, pin, movable latch, wherein,
Left and right clamp piece freely can be opened or close by fulcrum of pin, and without rocking, half round cut is left on two binding clips, be easy to clamping vertical
Connecting rod finds fulcrum accurately and struts otch, breaks groove unnecessary on disconnected screw ailhead.
The above-mentioned list of instruments of the present invention belongs to thoracolumbar fracture way of escape mis instruments, for percutaneously inserting pedicle of vertebral arch screw in art
Nail treatment thoracolumbar fracture, it can be processed into from medical metal material or medical macromolecular materials, preferably from medical
Stainless steel material, service life is long, is easy to sterilize Reusability；Part thereof, which also can select high polymer material and be made, disposably to be made
Apparatus.
The use process of above-mentioned apparatus：Entire patient anaesthetizes, and patient body prone position, belly is hanging.Mark is positioned under C arm machine
Note hinders vertebra and its up and down the pedicle of vertebral arch body surface projection of vertebra, punctures to centrum center pillar along conventional entry point, inserts three pieces of guide pins, C
Shape arm perspective is lower to determine that guide pin position is good, centered on every piece of guide pin, does longitudinal incision, is about 1.5cm, cuts skin and depth
Manadesma, using the expansion sleeve system step by step designed by the present invention, by carefully to slightly passivity expands paraspinal muscle, adjusting sleeve step by step successively
Pipe, makes all sleeve pipes groove suitable for reading of side be in same straight line (now port recess is also at same straight line under sleeve pipe), application
All sleeves of Kirschner wire fixation take out remaining sleeve in outer sleeve in the transverse process root of place centrum, are used along guide pin hollow
Screw tap tapping, screw openings device opening, the next centrum is screwed into common pedicle of vertebral arch screw using designed screw device for posting on vertebra is hindered
Nail, hinders vertebra and is screwed into Universal pedicle screw, reuses connecting bar (or connection handle) and adjusts pedicle screw nail tail U-type groove one by one
Direction, make it and adjusted that to finish sleeve recess opening direction consistent.It is vertical connecting rod to select appropriate length angle hold-down bars, is led to
The skin incision for hindering the upper centrum screw of vertebra is crossed, patch vertebral plate interts to the next screw, draws patient spine, strut, lock one by one
Hold-down bars.With implant bed between dentation curet preparation vertebral plate, Trephine for spondylopathy is minimally invasive to take autologous ilium, utilizes minimally invasive dosing mode device row
Bone grafting on the outside of afterwards.Clinical application find that with prominent effect, such as：Minimally Invasive Surgery apparatus of the present invention, need not in use
Using the screw of particular design, the screw with U-type groove structure that all conventional therapies are used all can be supporting with the apparatus
Use.
The minimally invasive thoracolumbar fracture nail pedicle fix multi-segmental pedicle screw device of the present invention solves Thoracolumbar disk for a long time
Fracture operation wound is big, time length, patient suffering is big, bear again etc. the problem of existing, and 1. the apparatus has is fixed on transverse process
Position Design, the cannula system outer sleeve navigation designing with particular groove, are conducive to inserting for screw；2. exclusive expansion step by step
Open sleeve, put nail guiding outer sleeve, screw device for posting and screw nail tail groove integration direction adjusted design, significantly facilitate vertical company
The importing of bar；3. separately it is furnished with minimally invasive dosing mode device, makes microtraumatic bone-grafting amount more accurate and effective.The use of the mis instruments, greatly
It is big to reduce operating time, perspective number of times, amount of bleeding and infection probability, the complication such as postoperative iatrogenic lumbago are reduced, it is postoperative
Walk with can descending within second day, it is evident in efficacy, it is the special supporting apparatus of operation of preferable treatment thoracolumbar fracture.
Brief description of the drawings
Fig. 1：Sleeve combining structure schematic top plan view is expanded step by step
Fig. 2：Left view structural profile schematic diagram in Fig. 1
Fig. 3：Handle arrangement schematic top plan view in Fig. 1
Fig. 4：Handle arrangement left view schematic diagram in Fig. 1
Fig. 5：Tube-in-tube structure schematic diagram step by step in Fig. 2
Fig. 6：Snap ring structure schematic diagram in Fig. 2
Fig. 7：Snap ring structure schematic top plan view in Fig. 6
Fig. 8：Fixing screws structural representation in Fig. 1
Fig. 9：Screw is oriented to outer sleeve combining structure schematic top plan view
Figure 10：Left view structural representation in Fig. 9
Figure 11：Semicircle tube-in-tube structure diagrammatic cross-section in Figure 10
Figure 12：It is right in Figure 11 to regard schematic diagram
Figure 13：The recessed handle arrangement schematic diagram of Fig. 9 middle sleeves
Figure 14：Overlooking the structure diagram in Figure 13
Figure 15：The convex handle arrangement schematic diagram of Fig. 9 middle sleeves
Figure 16：Overlooking the structure diagram in Figure 15
Figure 17：Rod structure schematic top plan view is sold in Fig. 2
Figure 18：Sell rod nut structure schematic diagram
Figure 19：Opener structural representation
Figure 20：Opener rose bit bar structural representation
Figure 21：Opener handle arrangement schematic diagram
Figure 22：Left view schematic diagram in Figure 21
Figure 23：A-A diagrammatic cross-sections in Figure 20
Figure 24：Screw device for posting structural representation
Figure 25：Screw device for posting revolves rod structural representation
Figure 26：B-B cross section structure diagrams in Figure 25
Figure 27：Figure 24 middle sleeve cross section structure diagrams
Figure 28：Figure 27 middle sleeve left view structural representations
Figure 29：I mplifying structure schematic diagrams in Figure 27
Figure 30：Drawbar structure diagram in Figure 24
Figure 31：Connection handle structural representation
Figure 32：Connection handle overlooking the structure diagram
Figure 33：Connection handle right side structural representation
Figure 34：Lengthen nested structure schematic diagram
Figure 35：Connection sleeve pipe structural representation
Figure 36：Overlooking the structure diagram in Figure 35
Figure 37：Minimally invasive dosing mode device structural representation
Figure 38：Bone grafting barrel structure schematic diagram in Figure 37
Figure 39：Fixed outer cylinder structural representation in Figure 37
Figure 40：Gun type of gas burner schematic diagram in Figure 37
Figure 41：Minimally invasive dosing mode device right side structural representation
Figure 42：Distraction forcep structural representation
Figure 43：Distraction forcep movable latch structural representation
Figure 44：Movable latch overlooking the structure diagram in Figure 43
Figure 45：Hollow screw tap structural representation
In Fig. 1-Figure 45：
1- U grooves, 7- sleeves fixing hole, 8- sets under the upper U grooves of sleeve, 2- handles, 3- snap rings, 4- fixing screws, 5-, 6- step by step
In cylinder groove, the handle grooves of 3 snap ring press-in piece of part 2, part 2 is inserted in the sleeve of part 1, and snap ring is just caught in the groove on sleeve, hand
Handle can rotate freely and the recessed handle of 9- sleeves will not be released out of groove, the convex handle of 10- sleeves, 11- round busses, 12- pin rod
The axial groove of nut, 13- rods pin, 14- round busses internal channel, 15- handles, 16- openers, 17- opener rose bits bar, 18-
Opener conehead, 19- hollows rod aperture, 24- sleeves, 20- handles connector, 22- rotation rods groove, 23- pull bars, the outer spiral shell of 25- sleeves
Line, 26- chock plugs, 27- pull bars hollow, 28- connections button, 29- connections shank, 21- positioning rotations rod ,-outer tube, 37- bone graftings cylinder,
Plunger tip, 35- pressurizations shank, 33- fixed outer cylinders, 34- gun type of gas burner, 38- gun-type handles in 36-
In Figure 42-Figure 44：1- left pliers plates, 2- right pliers plates, 3- adjusting nuts, 4- adjusting screw rods, 5- pins, 6- activities are inserted
Pin, at 7- marks, 8- graduated scales, 9- handles inner groovy, 10- binding clips, 11- jaws
The combining structure of the present invention is further illustrated with reference to accompanying drawing：
Minimally invasive thoracolumbar fracture nail pedicle fix multi-segmental pedicle screw device as shown in Fig. 1-44 mainly includes expanding step by step
Sleeve, screw be oriented to outer sleeve, screw device for posting, be coupled rod, pressure bone grafting instrument, hollow screw tap, screw openings device, screw,
Distraction forcep is constituted, wherein：Expansion sleeve is that sleeve, rotary handle, hole of threading a needle etc. are constituted step by step step by step, wherein sleeve is that have step by step
One group of inside and outside sleeve is constituted, i.e., at least two layers diameter above is different, the inside and outside pipe being nested step by step is constituted.Described screw
Being oriented to outer sleeve is made up of round buss, sleeve handle, rod pin that a pair symmetrical, matching is fastened etc., and wherein round buss is hollow
Semicylinder and conehead are constituted, and sleeve handle is provided with semicylinder upper end, and two half-cylinders docking is combined into a protective case
Cylinder, above and below the sleeve handle of semicylinder upper end grafting with pin rod fixed Combination into a pair of sleeve handle.Described screw is put
It is to have sleeve, handle, pull bar, chock plug, connection handle, rotation rod, outer tube to constitute to enter device, wherein, pull bar is hollow bar, handle and plug
Head is connected to the two ends of pull bar, and handle can be movable with pull bar or is fixedly connected, and chock plug is fixedly connected with pull bar, and chock plug is direct
Fill in the groove for following closely afterbody in screw.Described connecting bar is that have connection plush copper, connection tack, connection barred body to connect as one institute
Constitute, wherein, connection plush copper is the top axial projection in connection barred body, can be with the groove on screw device for posting rotary handle
With connection, the direction and position of pedicle screw are adjusted by screw device for posting；Pitman lower end for connection plano-convex head, can with it is outer
The matching connection of sleeve upper recess, is connected for outer sleeve with screw device for posting.Described screw refers to pedicle screw, is to have
Nail rod, nail tip portion, nail afterbody are constituted, and it is connected respectively with nail tip portion, nail afterbody at the two ends of nail rod, wherein, band in nail rod
There is screw thread, nail tip portion leaves spur, follows closely the female groove of the foot section brought, and the groove can fill in the chock plug of screw device for posting or pass through
Screw vertical connecting rod, the direction of adjusting screw and positioning are worn, screw, which is accurately positioned, to be placed into.Described minimally invasive dosing mode device be by
Bone grafting cylinder, interior plunger tip, pressurization handle, fixed outer cylinder are constituted, in gun type of gas burner, wherein, fixed outer cylinder is housed on pressurization handle, Gu
Determine outer barrel to be flexibly connected successively with bone grafting cylinder, interior plunger tip, pressurization handle is that have push rod, pistol to dial handle, gun stock to constitute, and in gun stock is pacified
Handle is dialled equipped with pistol, pistol is dialled handle and withstood on the tooth road of push rod, pistol dials the movable promotion push rod in tooth road of the handle along push rod
Withstand interior plunger tip to be nested or exit with bone grafting cylinder, interior plunger tip can eject the bone-grafting material pressure in bone grafting cylinder.Described screw
Opener is made up of rose bit bar, reaming conehead, handle etc., and it is to respectively connected handle and expansion at the two ends of rose bit bar
Hole conehead, wherein, reaming conehead is that, by the drill bit with micro- tooth, for boring the particle that opens seam, hollow screw tap accurately gets out screw thread；Handle
Movable or be fixedly connected with rose bit bar, rose bit bar is hollow bar.Described hollow screw tap be by screw tap bar, tap holder,
Handle is constituted, and it is to connect tap holder and handle respectively at the two ends of screw tap bar, wherein, thread road, silk are carried outside screw tap bar
Bar is attacked for hollow bar, screw tap bar is connected as a single entity with tap holder, tap holder is in drill bit shape, handle and screw tap bar be movable or fixed company
Connect.Described open mouth tongs are made up of left and right clamp piece, adjusting nut, adjusting screw rod, pin, movable latch, wherein, left and right pincers
Piece leaves half round cut using pin as fulcrum on two binding clips.Above-mentioned apparatus preferably selects medical macromolecular materials or medical gold
Category material or stainless steel material are processed into.
Claims (2)
1. a kind of minimally invasive bone fracture screw inserts opener, it is characterised in that main expansion sleeve, the screw step by step of including is oriented to overcoat
Cylinder, screw device for posting, connection rod, pressure bone grafting instrument, hollow screw tap, minimally invasive bone fracture screw insert opener, screw, distraction forcep；
Wherein：Step by step expansion sleeve be made up of sleeve step by step, rotary handle, hole of threading a needle, this step by step sleeve be by one group of inside and outside sleeve
Constitute, i.e., at least by two layers of diameter above be different, the inside and outside pipe being nested step by step is constituted；It is by a pair that screw, which is oriented to outer sleeve,
Symmetrically, matching fasten round buss, sleeve handle, rod pin bank into；Screw device for posting is by sleeve, handle, pull bar, chock plug, company
Handle, rotation rod, outer tube is connect to constitute；Being coupled rod is connected as one and is constituted by connection plush copper, connection tack, connection barred body；Pressure
Power bone grafting instrument is made up of bone grafting cylinder, interior plunger tip, pressurization handle, fixed outer cylinder, in gun type of gas burner, equipped with fixation on pressurization handle
Outer barrel, fixed outer cylinder is flexibly connected successively with bone grafting cylinder, interior plunger tip；Screw is made up of nail rod, nail tip portion, nail afterbody, nail rod
Two ends respectively with nail tip portion, nail afterbody be connected；Hollow screw tap is made up of screw tap bar, tap holder, the 3rd handle, screw tap bar
Two ends connect tap holder and the 3rd handle respectively；Distraction forcep is by left and right clamp piece, adjusting nut, adjusting screw rod, pin, activity
Latch is constituted, wherein, left and right clamp piece is using movable latch as fulcrum；Minimally invasive bone fracture screw insert opener be by rose bit bar,
Reaming conehead, second handle are constituted, and the two ends of rose bit bar respectively connected second handle and reaming conehead, and the reaming conehead is
By the drill bit with micro- tooth, second handle and rose bit bar are movable or are fixedly connected, second handle, rose bit bar, reaming conehead
It is sequentially connected, and is coaxially hollow core structures, matches insertion with guide pin or screw tap.
2. minimally invasive bone fracture screw as claimed in claim 1 inserts opener, it is characterised in that described opener is by medical
Metal material or stainless steel material are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229622.2A CN103006312B (en) | 2010-09-03 | 2010-09-03 | Minimally invasive bone fracture screw inserts opener |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229622.2A CN103006312B (en) | 2010-09-03 | 2010-09-03 | Minimally invasive bone fracture screw inserts opener |
| CN2010102713109A CN101912300B (en) | 2009-09-29 | 2010-09-03 | Multi-section device for fixing and imbedding vertebral pedicle screws used in minimally invasive thoracolumbar vertebrae fractures |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102713109A Division CN101912300B (en) | 2009-09-29 | 2010-09-03 | Multi-section device for fixing and imbedding vertebral pedicle screws used in minimally invasive thoracolumbar vertebrae fractures |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103006312A CN103006312A (en) | 2013-04-03 |
| CN103006312B true CN103006312B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210229622.2A Expired - Fee Related CN103006312B (en) | 2010-09-03 | 2010-09-03 | Minimally invasive bone fracture screw inserts opener |
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| CN (1) | CN103006312B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961155B (en) * | 2014-05-20 | 2016-08-24 | 北京乾鸿信科技有限公司 | Osteotome under a kind of split type mirror |
| CN109350214A (en) * | 2018-10-30 | 2019-02-19 | 杨宗德 | A kind of thoracic vertebrae shedding motion |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287907Y (en) * | 1996-03-30 | 1998-08-19 | 秦怀海 | Removable cranial bone awl |
| CN2407724Y (en) * | 1999-12-31 | 2000-11-29 | 邢台矿业(集团)有限责任公司总医院 | Stereo positioing needle for pedicle of vertebral arch |
| US6783533B2 (en) * | 2001-11-21 | 2004-08-31 | Sythes Ag Chur | Attachable/detachable reaming head for surgical reamer |
| FR2860418B1 (en) * | 2003-10-02 | 2005-12-16 | Ct Pulse France | INSTRUMENT FOR THE INSTALLATION OF INTERFERENCE SCREWS IN THE FIELD OF LIGAMENTOPLASTY |
| US7476240B2 (en) * | 2004-02-06 | 2009-01-13 | Depuy Spine, Inc. | Devices and methods for inserting a spinal fixation element |
| US7666189B2 (en) * | 2004-09-29 | 2010-02-23 | Synthes Usa, Llc | Less invasive surgical system and methods |
| CN2754574Y (en) * | 2004-12-21 | 2006-02-01 | 华中科技大学同济医学院附属同济医院 | Vertebral arch screw implanting guider |
| EP1767161A1 (en) * | 2005-09-22 | 2007-03-28 | Zimmer Spine, Inc. | Spinal fixation rod contouring system |
| CN1935092A (en) * | 2005-09-22 | 2007-03-28 | 王超然 | Transdermal guiding bone reaming tool device and method |
| CN201157401Y (en) * | 2008-02-25 | 2008-12-03 | 梁道臣 | Minimally invasive percutaneous transpedicular surgery positioning guide device |
| US8608746B2 (en) * | 2008-03-10 | 2013-12-17 | DePuy Synthes Products, LLC | Derotation instrument with reduction functionality |
| JP2011525229A (en) * | 2008-06-19 | 2011-09-15 | ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Bone Screw Footrest Implants, Systems, and Technologies |
| CN101327146B (en) * | 2008-07-31 | 2010-06-16 | 中国人民解放军第三军医大学第二附属医院 | Double-groove channel-to-channel connection type percutaneous vertebral pedicle screw nail internal fixation system |
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| CN103006312A (en) | 2013-04-03 |
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