CN101912300B - Multi-section device for fixing and imbedding vertebral pedicle screws used in minimally invasive thoracolumbar vertebrae fractures - Google Patents
Multi-section device for fixing and imbedding vertebral pedicle screws used in minimally invasive thoracolumbar vertebrae fractures Download PDFInfo
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- CN101912300B CN101912300B CN2010102713109A CN201010271310A CN101912300B CN 101912300 B CN101912300 B CN 101912300B CN 2010102713109 A CN2010102713109 A CN 2010102713109A CN 201010271310 A CN201010271310 A CN 201010271310A CN 101912300 B CN101912300 B CN 101912300B
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- 229910052802 copper Inorganic materials 0.000 claims description 8
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Abstract
The invention relates to a multi-section device for fixing and imbedding vertebral pedicle screws used in minimally invasive thoracolumbar vertebrae fractures, comprising a stepwise expanding sleeve, a screw guiding outer sleeve, a screw imbedding device, a connecting bar, a pressure bone grafting device, a hollow screw tap, screws, a screw mouth gag and expanding pincers, wherein the stepwise expanding sleeve comprises a stepwise sleeve, a rotary handle, a threading hole and the like; and the stepwise sleeve comprises a set of inner sleeve and outer sleeve which are at least two layers of inside and outside stepwise sleeved circular tubes with different diameters. The multi-section device has the characteristics of simple operation, convenient operation, accurate positioning, stable screw imbedding, good therapeutic effect, low cost, light patient pain, low economic burden, one-step multi-screw imbedding fixation and the like; by adopting a posterior percutaneous implanting technique, the invention develops a matched minimally invasive device, realizes a multisection vertebral body fixing technique, improves the screw-imbedding accuracy, reduces the invasive area and the operation time and improves the operation method and the treating effect. The multi-section device reduces iatrogenic injuries, is easy to realize industrial production and is a matched operation device for treating the thoracolumbar vertebrae fractures.
Description
Technical field
The present invention relates to is medical apparatus and instruments, more particularly is about bone surgery set, and the Wicresoft's lumbar vertebra compression fracture pedicle nail that is used to treat reduction of the fracture operation such as breast lumbar vertebra is the multi-segmental pedicle screw device fixedly.
Background technology
Lumbar vertebra compression fracture is common spinal fracture, and conventional surgical is fracture site to be resetted fixing with pedicle screw, and pedicle screw is because of having the fixed advantage of three posts; Applied; But its modus operandi is to adopt to open to carry on the back to insert pedicle screw, and it is to cut at human body back median incision, peels off to both sides along otch; Wound big, hemorrhage many, the hospital stays is long, has increased patient's slight illness and financial burden; Need expansion peel off paraspinal muscle in the operation, cause paraspinal muscle forfeiture innervation easily, cause the dysfunction in late period, often suffer from back lumbar and back pain, complication such as stiff.In clinical; Existing pedicle screw apparatus is merely the design and use of traditional open operation institute; Operation bothers, wound is big, the patient suffering is big; Insert in the pedicle screw operation at percutaneous puncture, very big for the importing process difficulty of inserting and indulging rod of screw, therefore can not be used for fixedly lumbar vertebra compression fracture of multi-segmental.For some special way of escape pedicle screw system, then need the pedicle screw of special matched, cost is higher, increases the patient burden greatly.Press at present and develop a kind of mis instruments that percutaneous is inserted pedicle screw that is specifically designed to; Both can use common LOCATION OF PEDICLE SCREW FIXATION; Be suitable for special screw such as universal pedicle screw again; Can realize that simultaneously the multi-segmental vertebral body fixedly satisfies clinical actual demand, with relieve patient ' s burden, increase society and economic benefit.
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 the fixing multi-segmental pedicle screw device of Wicresoft's lumbar vertebra compression fracture pedicle nail of inserting characteristics such as one-time fixing more.Especially adopt lumbar vertebra compression fracture way of escape percutaneous to put and implant the LOCATION OF PEDICLE SCREW FIXATION technology; Having developed punchinges puts that pin enlarges step by step, external regulation type is inserted supporting mis instruments such as pedicle screw direction; Realized common pedicle screw to multi-segmental vertebral body technique for fixing, inserted, improved the accuracy that screw is inserted to make things convenient for the screw in the fracture operation; Reduce the little and operating time of wound face, improved operation method and therapeutic effect.Captured open 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 operation technique simultaneously; Reducing operation wound, save operating time and manpower, is the special-purpose supporting apparatus of operation of ideal treatment lumbar vertebra compression fracture.
Wicresoft of the present invention lumbar vertebra compression fracture pedicle nail fixedly multi-segmental pedicle screw device mainly comprises and expands sleeve, screw guiding outer sleeve, screw inserter step by step, connects rod, pressure bone grafting device, hollow screw tap, screw openings device, screw, struts pincers; Wherein: expand sleeve step by step and form by sleeve, rotary handle, the hole of threading a needle step by step, this step by step sleeve be to constitute by one group of inside and outside sleeve, promptly different by two-layer above diameter at least, the inside and outside pipe that is nested is step by step formed; The round buss that screw guiding outer sleeve is fastened by a pair of symmetry, coupling, sleeve handle, rod pin are formed; The screw inserter is by sleeve, handle, pull bar, chock plug, connection handle, revolve rod, trocar sheath constitutes; Connecting rod is to connect as one institute by connection plush copper, connection tack, connection barred body to constitute; Pressure bone grafting device by bone grafting tube, interior plunger tip, add pressure handle, fixed outer cylinder is formed, and is gun type of gas burner, fixed outer cylinder is housed adding on the pressure handle, fixed outer cylinder and bone grafting tube, interior plunger tip flexibly connect successively; Screw is to be made up of nail bar, nail tip, nail afterbody, and the two ends of nail bar are connected with nail tip, nail afterbody respectively; The screw openings device is to be made up of rose bit bar, reaming conehead, second handle, and the two ends of rose bit bar are connecting second handle and reaming conehead respectively; Hollow screw tap is to be made up of screw tap bar, screw tap head, the 3rd handle, and the two ends of screw tap bar are connecting filament tap holder and the 3rd hands handle respectively; Strutting pincers is to be made up of left and right pincers sheet, adjusting nut, adjusting screw(rod), pin, movable latch, and wherein, left and right pincers sheet is fulcrum with the movable latch.Described round buss is to be made up of hollow semicylinder and conehead, and sleeve handle is installed in semicylinder upper end, and the two half-cylinders butt joint is combined into a round buss, at the sleeve handle of the semicylinder upper end synthetic a pair of sleeve handle of rod pin fixation group of pegging graft up and down.Described pull bar is the hollow bar, and handle and chock plug are connected to the two ends of pull bar, and handle can or be fixedly connected with the pull bar activity, and chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove of screw nail afterbody.Described connection plush copper is protruding at the top axial that connects barred body, can be connected with the groove coupling on the screw inserter rotary handle, regulates the direction and the position of pedicle screw through the screw inserter; The pitman lower end is for connecting tack, can be connected with the screw outer sleeve upper end groove coupling that leads, and is used for the screw outer sleeve that leads and is connected with the screw inserter.Described screw is meant pedicle screw, is to be made up of nail bar, nail tip, nail afterbody, and the two ends of nail bar are connected with nail tip, nail afterbody respectively; Wherein, be threaded on the nail bar, spur is left in the nail tip; The nail afterbody has the groove of female thread; 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 add pressure handle be by push rod, pistol dial handle, gun stock constitutes; Pistol is installed in gun stock dials handle; Pistol is dialled on the tooth road that handle withstands on push rod; Pistol dial handle along the tooth road of push rod move forward and backward promote push rod withstand in plunger tip and bone grafting tube be nested or withdraw from, interior plunger tip can eject the bone-grafting material pressure in the bone grafting tube.Described reaming conehead is by the drill bit with little tooth, is used for boring the particle that opens seam, and hollow screw tap accurately gets out screw thread; Second handle is movable with the rose bit bar or be fixedly connected, and the rose bit bar is the hollow bar.Described screw tap bar has the thread road outward, and the screw tap bar is the hollow bar, and screw tap bar and screw tap head are connected as a single entity, and the screw tap head is the drill bit shape, and the 3rd handle is movable with the screw tap bar or be fixedly connected.Described left and right pincers sheet is on two binding clips, all to leave half round cut.Above-mentioned apparatus is to be processed by medical macromolecular materials or medical metal material.
This Wicresoft's lumbar vertebra compression fracture pedicle nail fixedly multi-segmental pedicle screw device mainly comprises and expands sleeve (be adjustable nail to by expanding sleeve), screw guiding outer sleeve, screw inserter step by step, connects formations such as rod, pressure bone grafting device, hollow screw tap, screw openings device, screw; Wherein: the described sleeve of expanding step by step is a composition such as sleeve, rotary handle, the hole of threading a needle step by step; Wherein sleeve is to have one group of inside and outside sleeve to constitute step by step; Promptly have at least two-layer above diameter difference, the inside and outside pipe that is nested step by step to form; To realize enlarging Wicresoft's strip off, the convenient purpose of screw of accurately inserting step by step; Leave U type groove at telescopic two ends step by step, the telescopic step by step upper end of adjustment U type groove direction is consistent during operation, with under the direction of U type groove also consistent; But just accurately import vertical rod in the infra U type groove, thereby realize the effect that many nails one-time fix.Above-mentioned inside and outside sleeve is that the external diameter coupling circular sleeve at interval that is nested constitutes in one group, 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 sleeve step by step and is mainly used in expansion formation service aisle, makes things convenient for inserting and vertical rod importing of screw.Be with the telescopic step by step difference of tradition: 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 for use, also can select the single armed rotary handle for use; The nearly sleeve of handle place can leave puncturing hole; The aperture of this puncturing hole is greater than 1.5mm, can hold the puncturing hole that the 1.5mm Kirschner wire passes at least, and 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 helps pedicle screw is inserted; 2. U type groove is all left at the two ends up and down of outer sleeve; And the U type groove direction at two ends is consistent; Be convenient to adjusted in concert in the same way, make all sleeves of vertebral body homonymy upper end groove direction adjustment unanimities after, it is also consistent synchronously thereupon to drive all lower end groove direction; And connect outer sleeve and the screw inserter that inserts in the sleeve step by step through connecting rod; Adjust the direction of the screw U type groove of inserting in the vertebral body according to outer sleeve upper end groove direction through connecting excellent attachment screw inserter, two ends U type groove direction is consistent up and down with outer sleeve to make screw nail afterbody U type groove direction, adjustment 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. are formed; Wherein round buss is that hollow semicylinder and conehead constitute; In the semicylinder upper end sleeve handle is installed, the two half-cylinders butt joint is combined into a protection sleeve, pegs graft up and down with the synthetic a pair of sleeve handle of pin rod fixation group at the sleeve handle of semicylinder upper end; Do not injure the skin incision position when being convenient to put tack operation, alleviated patient's misery widely.
Described screw inserter is sleeve, handle, pull bar, chock plug, connection handle are arranged, to revolve formations such as rod, trocar sheath, and 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, and 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 regulating U type groove on nail tail groove direction and the outer sleeve is consistent, makes things convenient for vertical connecting rod to insert in the following U type groove of outer sleeve; Revolve rod and be enclosed within successively on the pull bar with connection handle, revolve rod can on pull bar, rotate mobile, the adjusting yoke axial location; Between pull bar and chock plug, leave one group of fixed external screw thread, can be connected, in putting the nail process, be convenient to the position and the direction of adjustment screw with the female thread coupling that screw is followed closely afterbody; 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 the position and the direction of adjustment screw internally; Jacket casing is buckled in outside the pull bar, constitutes the pull bar general name.A groove is left in the stage casing of screw inserter, can the direction of itself and outer layer sleeve upper end U type groove be adjusted to consistently through conjugation handle, and then reaches the direction purpose consistent with the sleeve groove direction of adjustment screw nail tail U type groove indirectly.
Described screw (or claiming the root nail) refers to that pedicle screw, this pedicle screw are to have nail bar, nail tip, nail afterbody to constitute more, and it is to be connected with nail tip, nail afterbody respectively at the two ends of nail bar; Wherein, be threaded on the nail bar, spur is left in the nail tip; The nail afterbody has the groove (or claiming breach) of female thread; This groove can be filled in the chock plug of screw inserter or run through the screw vertical connecting rod, and through the direction and the location of screw inserter adjustment screw, the realization screw is accurately located and inserted; Insert in the process at pedicle screw; It is consistent that the rotary handle of adjustment screw inserter transfers to direction through groove on the groove that connects rod screw is followed closely afterbody and the outer sleeve; Reached the effect of inside and outside interlock, direction unanimity, realized that a rod runs through the localized purposes of many nails.Simultaneously, pedicle screw can select for use universal pedicle screw or common pedicle screw or combination to use universal and common pedicle screw arbitrarily according to the operation needs, has saved surgery cost widely.
Described connection rod (or claiming connection handle) be the plush copper of connection is arranged, connect tack, connect barred body connect as one constitute; Wherein, It is protruding at the top axial that connects barred body connecting plush copper; Can be connected with the groove coupling on the screw inserter rotary handle, regulate the direction and the position of pedicle screw through 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; The direction that drives nail tail groove and outer sleeve groove through adjustment screw inserter is consistent, usually outer vertical connecting rod is inserted on the consistent outer sleeve of one group of groove direction, and the groove direction and the outer sleeve upper end groove direction of regulating pedicle screw through the screw inserter are consistent; Be convenient to vertical connecting rod and be applied in the pedicle screw nail tail groove, realize the fixed purpose of disposable many nails from outer sleeve lower end groove is smooth and easy.
Described Wicresoft pressurization bone grafting device by bone grafting tube, interior plunger tip, add pressure handle, fixed outer cylinder is formed, and is gun type of gas burner, wherein; Fixed outer cylinder is housed adding on the pressure handle, fixed outer cylinder and bone grafting tube, interior plunger tip flexibly connect according to this, and adding pressure handle is to have push rod, pistol to dial handle; Gun stock constitutes, and pistol is installed in gun stock dials handle, and pistol is dialled on the tooth road that handle withstands on push rod; Pistol dial handle along the tooth road of push rod move forward and backward promote push rod withstand in plunger tip and bone grafting tube be nested or withdraw from, interior plunger tip can eject the bone-grafting material in the bone grafting tube under certain pressure, through putting Wicresoft's skin incision of nail; Accurately insert implant bed, help patient's early recovery.
Described screw openings device is to be made up of rose bit bar, reaming conehead, handle etc.; It is to connect handle and reaming conehead respectively 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, convenient hollow screw tap accurately gets out screw thread; Handle is movable with the rose bit bar or be fixedly connected, and the rose bit bar is the hollow bar, and the skin of being convenient to import opposed nail position on the positioning needle carries out Wicresoft's enlarging, for tapping, put nail and lay the foundation.
Described hollow screw tap is to be made up of screw tap bar, screw tap head, handle etc.; It is at the two ends of screw tap bar difference connecting filament tap holder and handle; Wherein, the screw tap bar has the thread road outward, and the screw tap bar is the hollow bar; The sclerotin of being convenient to import opposed nail position on the positioning needle carries out tapping, makes things convenient for accurately inserting of screw; Screw tap bar and screw tap head are connected as a single entity, and the screw tap head is the drill bit shape, are convenient to further tapping; Handle is movable with the screw tap bar or be fixedly connected convenient hand-held the use.
Described open mouth tongs are to be made up of left right pliers plate, adjusting nut, adjusting screw(rod), pin, movable latch; Wherein, Left side right pliers plate is that fulcrum can freely open or closure with the pin, and nothing is rocked, and all leaves half round cut on two binding clips; Be convenient to the clamping vertical connecting rod and find the otch of naming a person for a particular job accurately and strut, break unnecessary groove on the disconnected screw ailhead off with the fingers and thumb.
The above-mentioned serial apparatus of the present invention belongs to lumbar vertebra compression fracture way of escape mis instruments; Insert pedicle screw treatment lumbar vertebra compression fracture with percutaneous in the Rhizoma Atractylodis Macrocephalae; It can select for use medical metal material or medical macromolecular materials to be processed into; Preferably select the medical stainless steel material for use, long service life is convenient to sterilization and is used repeatedly; The part apparatus also can select for use macromolecular material to process disposable apparatus.
The use of above-mentioned apparatus: patient's general anesthesia, the patient body ventricumbent position, abdominal part is unsettled.Telltale mark is hindered the 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, inserts three pieces of guide pins; Definite guide pin position is good down for C shape arm perspective, is the center with every piece of guide pin, does longitudinal incision; Be about 1.5cm, cut skin and deep fascia, use the cartridge system of expanding sheath step by step that the present invention designed; To passivity expansion paraspinal muscle step by step successively slightly, the adjustment sleeve pipe makes 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) by thin; Use fixing all sleeves of Kirschner wire 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 uses the screw inserter that designs to be screwed into common pedicle screw hindering on the vertebra the next vertebral body, hinders vertebra and is screwed into universal pedicle screw; Re-use and connect the direction that rod (or claiming connection handle) is adjusted pedicle screw nail tail U type groove one by one, make itself and the adjusted sleeve slot opening direction that finishes consistent.Selecting appropriate length fixed angle rod is vertical connecting rod, through 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 device capable after outside bone grafting.Find to have outstanding effect through clinical practice, for example: Minimally Invasive Surgery apparatus of the present invention, need not use the screw of particular design in the use, the screw that all traditional open operations are used with U type groove structure all can with the supporting use of this apparatus.
Wicresoft of the present invention lumbar vertebra compression fracture pedicle nail fixedly multi-segmental pedicle screw device has solved the problem that the lumbar vertebra compression fracture surgical wound is big for a long time, the time long, the patient suffering is big, burden heavily waits existence; This apparatus has the positioning design that 1. is fixed in transverse process, the cannula system outer sleeve guiding design with particular groove, helps inserting of screw; 2. the exclusive sleeve of expansion step by step, put nail guiding outer sleeve, the screw inserter designs with the adjustment of screw nail tail groove integration direction, makes things convenient for the importing of vertical connecting rod greatly; 3. be furnished with Wicresoft's pressurization bone grafting device in addition, make Wicresoft's bone grafting amount accurate and effective more.The use of this mis instruments; Greatly reduce operating time, perspective number of times, amount of bleeding and infect probability, reduce 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 special-purpose supporting apparatus of operation of ideal treatment lumbar vertebra compression fracture.
Description of drawings
Fig. 1: expand sleeve combinative structure schematic top plan view step by step
Fig. 2: left TV structure generalized section among 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 structural representation 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
Figure 10: left TV structure sketch map among Fig. 9
Figure 11: semicircle tube-in-tube structure generalized section among Figure 10
Figure 12: Figure 11 right-of-center in political views looks sketch map
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
Figure 19: gag structural representation
Figure 20: gag rose bit bar structural representation
Figure 21: gag handle arrangement sketch map
Figure 22: sketch map is looked on a left side among Figure 21
Figure 23: A-A generalized section among Figure 20
Figure 24: screw inserter structural representation
Figure 25: the screw inserter revolves the bar structure sketch map
Figure 26: B-B sectional structure sketch map among Figure 25
Figure 27: Figure 24 middle sleeve sectional structure sketch map
Figure 28: Figure 27 middle sleeve left side TV structure sketch map
Figure 29: I structure for amplifying sketch map among Figure 27
Figure 30: Tiebar structure sketch map among Figure 24
Figure 31: connection handle structural representation
Figure 32: connection handle plan structure sketch map
Figure 33: the right TV structure sketch map of connection handle
Figure 34: lengthening nested structure sketch map
Figure 35: joint sleeve structural representation
Figure 36: plan structure sketch map among Figure 35
Figure 37: Wicresoft's pressurization bone grafting device structural representation
Figure 38: bone grafting barrel structure sketch map among Figure 37
Figure 39: fixed outer cylinder structural representation among Figure 37
Figure 40: gun type of gas burner sketch map among Figure 37
Figure 41: the right TV structure sketch map of Wicresoft's pressurization bone grafting device
Figure 42: strut the wrench structure sketch map
Figure 43: strut pincers movable latch structural representation
Figure 44: movable latch plan structure sketch map among Figure 43
Figure 45: hollow screw tap structural representation
Among Fig. 1-Figure 45:
1-is U groove, 7-sleeve fixing hole, 8-sleeve groove under sleeve, 2-handle, 3-snap ring, 4-hold-down screw, the last 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 in groove, not get loose
The recessed handle of 9-sleeve; The protruding handle of 10-sleeve; The 11-round buss; 12-sells excellent nut; 13-rod pin; 14-round buss internal channel; The 15-handle; The axial groove of 16-gag; 17-gag rose bit bar; 18-gag conehead; 19-hollow bar hole; The 24-sleeve; 20-handle union joint; 22-revolves excellent groove; The 23-pull bar; 25-sleeve external screw thread; The 26-chock plug; 27-pull bar hollow; 28-connects button; 29-connection handle bar; 21-revolves rod in the location;-trocar sheath; 37-bone grafting tube; Plunger tip in the 36-; 35-adds the pressure handle bar; The 33-fixed outer cylinder; The 34-gun type of gas burner; 38-rifle formula handle
Among Figure 42-Figure 44: 1-left pliers plate, 2-right pliers plate, 3-adjusting nut, 4-adjusting screw(rod), 5-pin, 6-movable latch, 7-mark place, 8-rule, 9-handle inner groovy, 10-binding clip, 11-jaw
Further specify combinative structure of the present invention in conjunction with accompanying drawing:
Wicresoft's lumbar vertebra compression fracture pedicle nail shown in Fig. 1-44 fixedly multi-segmental pedicle screw device mainly comprises and expands sleeve, screw guiding outer sleeve, screw inserter step by step, connects rod, pressure bone grafting device, hollow screw tap, screw openings device, screw, struts the pincers formation; Wherein: expand sleeve step by step and be composition such as sleeve, rotary handle, the hole of threading a needle step by step; Wherein sleeve is to have one group of inside and outside sleeve to constitute step by step, promptly 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. are formed; Wherein round buss is that hollow semicylinder and conehead constitute; In the semicylinder upper end sleeve handle is installed; The two half-cylinders butt joint is combined into a protection sleeve, pegs graft up and down with the synthetic a pair of sleeve handle of pin rod fixation group at the sleeve handle of semicylinder upper end.Described screw inserter be sleeve, handle, pull bar, chock plug, connection handle arranged, revolve rod, trocar sheath constitutes; Wherein, Pull bar is the hollow bar, and handle and chock plug are connected to the two ends of pull bar, and 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 connection rod be have connect plush copper, connect tack, connect barred body connect as one constitute; Wherein, It is protruding at the top axial that connects barred body connecting plush copper; Can be connected with the groove coupling on the screw inserter rotary handle, regulate the direction and the position of pedicle screw through 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 is meant pedicle screw, and being has nail bar, nail tip, nail afterbody to constitute, and it is to be connected with nail tip, nail afterbody respectively at the two ends of nail bar; Wherein, be threaded on the nail bar, spur is left in the nail tip; The nail afterbody has the groove of female thread; 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 device by bone grafting tube, interior plunger tip, add pressure handle, fixed outer cylinder is formed; Be gun type of gas burner, wherein, fixed outer cylinder be housed adding on the pressure handle; Fixed outer cylinder and bone grafting tube, interior plunger tip flexibly connect successively; Add pressure handle and be have push rod, pistol to dial handle, gun stock constitutes, and pistol is installed in gun stock dials handle, pistol is dialled on the tooth road that handle withstands on push rod; Pistol dial handle along the tooth road of push rod move forward and backward promote push rod withstand in plunger tip and bone grafting tube be nested or withdraw from, interior plunger tip can eject the bone-grafting material pressure in the bone grafting tube.Described screw openings device is to be made up of rose bit bar, reaming conehead, handle etc.; It is to connect handle and reaming conehead respectively 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, and the rose bit bar is the hollow bar.Described hollow screw tap is to be made up of screw tap bar, screw tap head, handle; It is that wherein, the screw tap bar has the thread road outward at the two ends of screw tap bar difference connecting filament tap holder and handle; The screw tap bar is the hollow bar; Screw tap bar and screw tap head are connected as a single entity, and the screw tap head is the drill bit shape, and handle is movable with the screw tap bar or be fixedly connected.Described open mouth tongs are to be made up of left right pliers plate, adjusting nut, adjusting screw(rod), pin, movable latch, and wherein, left right pliers plate is fulcrum with the pin, all leaves half round cut on two binding clips.Above-mentioned apparatus preferably selects for use medical macromolecular materials or medical metal material or stainless steel material to be processed into.
Claims (10)
1. the fixing multi-segmental pedicle screw device of Wicresoft's lumbar vertebra compression fracture pedicle nail is characterized in that mainly comprising and expands sleeve, screw guiding outer sleeve, screw inserter step by step, connects rod, pressure bone grafting device, hollow screw tap, screw openings device, screw, struts pincers;
Wherein: expand sleeve step by step and form by sleeve, rotary handle, the hole of threading a needle step by step, this step by step sleeve be to constitute by one group of inside and outside sleeve, promptly different by two-layer above diameter at least, the inside and outside pipe that is nested is step by step formed;
The round buss that screw guiding outer sleeve is fastened by a pair of symmetry, coupling, sleeve handle, rod pin are formed;
The screw inserter is by sleeve, handle, pull bar, chock plug, connection handle, revolve rod, trocar sheath constitutes;
Connecting rod is to connect as one institute by connection plush copper, connection tack, connection barred body to constitute;
Pressure bone grafting device by bone grafting tube, interior plunger tip, add pressure handle, fixed outer cylinder is formed, and is gun type of gas burner, fixed outer cylinder is housed adding on the pressure handle, fixed outer cylinder and bone grafting tube, interior plunger tip flexibly connect successively;
Screw is to be made up of nail bar, nail tip, nail afterbody, and the two ends of nail bar are connected with nail tip, nail afterbody respectively;
The screw openings device is to be made up of rose bit bar, reaming conehead, second handle, and the two ends of rose bit bar are connecting second handle and reaming conehead respectively;
Hollow screw tap is to be made up of screw tap bar, screw tap head, the 3rd handle, and the two ends of screw tap bar are connecting filament tap holder and the 3rd hands handle respectively;
Strutting pincers is to be made up of left and right pincers sheet, adjusting nut, adjusting screw(rod), pin, movable latch, and wherein, left and right pincers sheet is fulcrum with the movable latch.
2. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly; It is characterized in that described round buss is to be made up of hollow semicylinder and conehead; In the semicylinder upper end sleeve handle is installed; Two half-cylinders butt joint is combined into a round buss, at the sleeve handle of the semicylinder upper end synthetic a pair of sleeve handle of rod pin fixation group of pegging graft up and down.
3. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly; It is characterized in that described 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, and chock plug is fixedly connected with pull bar, and chock plug is directly filled in the groove of screw nail afterbody.
4. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly; It is characterized in that described connection plush copper is protruding at the top axial that connects barred body; Can be connected with the groove coupling on the handle of screw inserter, through the direction and the position of screw inserter adjustment screw; Connect the barred body lower end for connecting tack, can be connected, be used for the screw outer sleeve that leads and be connected with the screw inserter with the screw outer sleeve upper end groove coupling that leads.
5. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly, it is characterized in that described screw is meant pedicle screw, wherein; Be threaded on the nail bar; Spur is left in the nail tip, and the nail afterbody has the groove of female thread, and 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, screw is accurately located and is inserted.
6. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly; It is characterized in that described add pressure handle be by push rod, pistol dial handle, gun stock constitutes; Pistol is installed in gun stock dials handle; Pistol is dialled on the tooth road that handle withstands on push rod, pistol dial handle along the tooth road of push rod move forward and backward promote push rod withstand in plunger tip and bone grafting tube be nested or withdraw from, interior plunger tip can eject the bone-grafting material pressure in the bone grafting tube.
7. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly, it is characterized in that described reaming conehead is by the drill bit with little tooth, is used for boring the particle that opens seam, and hollow screw tap accurately gets out screw thread; Second handle is movable with the rose bit bar or be fixedly connected, and the rose bit bar is the hollow bar.
8. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly; It is characterized in that described screw tap bar has the thread road outward; The screw tap bar is the hollow bar; Screw tap bar and screw tap head are connected as a single entity, and the screw tap head is the drill bit shape, and the 3rd handle is movable with the screw tap bar or be fixedly connected.
9. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly, it is characterized in that described left and right pincers sheet is on two binding clips, all to leave half round cut.
10. Wicresoft as claimed in claim 1 lumbar vertebra compression fracture pedicle nail is the multi-segmental pedicle screw device fixedly, it is characterized in that above-mentioned apparatus is to be processed by medical macromolecular materials or medical metal material.
Priority Applications (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 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910019532.9 | 2009-09-29 | ||
| CN200910019532 | 2009-09-29 | ||
| 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 Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210229622.2A Division CN103006312B (en) | 2010-09-03 | 2010-09-03 | Minimally invasive bone fracture screw inserts opener |
| CN2012102296218A Division CN103126757A (en) | 2009-09-29 | 2010-09-03 | Minimally invasive fracture fixation multi-section screw fixation device |
| CN2012102275921A Division CN102920496A (en) | 2010-09-03 | 2010-09-03 | Minimally-invasive pressurization bone grafting instrument |
| CN2012102296701A Division CN103070721A (en) | 2010-09-03 | 2010-09-03 | Minimally-invasive thoracolumbar vertebral fracture repositor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101912300A CN101912300A (en) | 2010-12-15 |
| CN101912300B true CN101912300B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102296218A Pending CN103126757A (en) | 2009-09-29 | 2010-09-03 | Minimally invasive fracture fixation multi-section screw fixation device |
| CN2010102713109A Expired - Fee Related 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 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102296218A Pending CN103126757A (en) | 2009-09-29 | 2010-09-03 | Minimally invasive fracture fixation multi-section screw fixation device |
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| CN (2) | CN103126757A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247201B (en) * | 2011-08-12 | 2012-10-31 | 贺新宁 | Percutaneous minimally invasive pedicle screw/rod internal fixation system |
| CN104665920B (en) * | 2015-03-30 | 2017-03-15 | 蔡鸿敏 | A kind of passage preparation tool of pelvis crista iliaca external fixing rack screw |
| CN105596077A (en) * | 2016-02-06 | 2016-05-25 | 贺新宁 | Universal screw-setting device for pedicle screw |
| CN105816228A (en) * | 2016-02-26 | 2016-08-03 | 邓宇 | T-shaped fixing rod of thoracolumbar vertebral fracture posterior micro-wound screw-rod fixation percutaneous reduction system |
| CN106691525A (en) * | 2017-01-06 | 2017-05-24 | 南京市六合区人民医院 | Fixing system for transplant in anterior cruciate ligament reconstruction |
| CN109330677A (en) * | 2018-11-22 | 2019-02-15 | 自贡市第四人民医院(自贡市急救中心) | A kind of personalization atlas and axis pedicle screw navigation template device and preparation method thereof step by step |
| CN110811717B (en) * | 2019-11-01 | 2023-10-13 | 上海市第六人民医院 | Rivet assembly convenient for one-step method placement and rivet one-step method placement method |
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| AU2005213351B2 (en) * | 2004-02-06 | 2011-02-17 | Depuy Spine, Inc. | Devices and methods for inserting a spinal fixation element |
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| US8608746B2 (en) * | 2008-03-10 | 2013-12-17 | DePuy Synthes Products, LLC | Derotation instrument with reduction functionality |
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| 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 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103126757A (en) | 2013-06-05 |
| CN101912300A (en) | 2010-12-15 |
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