CN202761341U - Minimally invasive fracture bolt embedding opening machine - Google Patents

Abstract

The utility model discloses a minimally invasive fracture bolt embedding opening machine. A hand shank and a chambering cone head are respectively connected with two ends of a chambering cone rod, the chambering cone head is a drill with micro teeth, the hand shank and the chambering cone rod can be movably or fixedly connected, the hand shank, the chambering cone rod and the chambering cone head are sequentially connected, are coaxial and form a hollow core structure, and the hand shank, the chambering cone rod and the chambering cone head are matched with a guide pin or a screw tap in penetrating mode. The minimally invasive fracture bolt embedding opening machine has the advantages of being reasonable in structure, simple in operation, convenient to operate, accurate in opening positioning, limited in piercing depth and the like. The minimally invasive fracture bolt embedding opening machine solves the problems that for a long time, opening of a bolt embedding operation depends on feeling and eye viewing of a doctor, trauma is big, and risks of the operation are big, and the like. A hollow and limiting structure is adopted, the minimally invasive fracture bolt embedding opening machine can accurately position the opening along the direction of the guide needle through a small-cutting-opening channel of a minimally invasive operation, can limit piercing depth by self, lays the foundation for accurate embedding of vertebral pedicle bolts, shortens operation time and recovery time, lightens pain and economic burdens of a patient, is an ideal minimally invasive fracture bolt embedding instrument capable of fixing multiple segments, and is dedicated to a matching device of the opening.

Description

Wicresoft's fracture screw is inserted gag

Technical field

It is medical apparatus and instruments that this utility model relates to, and more particularly is about bone surgery set, and the Wicresoft's fracture screw that is used in the fracture operations such as treatment all kinds of fracture, especially minimally-invasive treatment breast lumbar vertebra is inserted gag.

Background technology

Usually people know that often needing to carry out synthetism in fracture operation puts the nail treatment, traditional nail open front of putting does not have special-purpose locating aperture apparatus, only with doctor's feel with observe otch chisel hand operation, aperture position is inaccurate, the cutter mouth is deep mixed, and very easily the dark cutter of cutter splits, and patient trauma is large, misery is large, the operation trouble can't be used for Minimally Invasive Surgery.And lumbar vertebra compression fracture is common spinal fracture, traditional operation is to reset fracture site fixing with pedicle screw, pedicle screw is because having the fixing 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 large, 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 easily paraspinal muscle forfeiture innervation, cause the dysfunction in late period, often suffer from rear lumbar and back pain, the complication such as stiff.In clinical, existing pedicle screw apparatus only is that conventional therapy is designed and use, operation bothers, wound is large, the patient suffering is large, insert in the pedicle of vertebral arch screw tack operation at percutaneous puncture, the importing process difficulty of inserting and indulging rod for screw is very large, therefore can not be used for fixedly lumbar vertebra compression fracture of multi-segmental.For some special posterior Pedicle screw systems, then need the pedicle screw of special matched, cost is higher, greatly increases the patient burden.In the urgent need to developing a kind of mis instruments that percutaneous is inserted pedicle screw that is specifically designed to, can by the little otch passage of Minimally Invasive Surgery, finish fast screw and insert front locating aperture at present.Both can use common pedicle screw to fix, the special screw such as applicable Universal pedicle screw again can realize simultaneously that the multi-segmental vertebral body fixedly satisfies clinical actual demand, with the misery that alleviates few patient and financial burden, increase social 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, the opening accurate positioning, can limit the Wicresoft's fracture screw that thrusts the characteristics such as the degree of depth to insert gag.Especially adopt hollow and position limiting structure, can be by the little otch passage of Minimally Invasive Surgery, along the accurate locating aperture of the direction of guide pin, and the degree of depth is thrust in restriction voluntarily, accurately inserts for pedicle nail and lays a solid foundation.Realized limiting voluntarily in the Minimally Invasive Surgery paracentesis depth function, it is less effectively to have overcome mini-incision, can't under direct-view, limit paracentesis depth, reduce the danger dark, that avoided the Spinal Cord nerve of puncturing, utilize simultaneously hollow-core construction, can greatly improve the accuracy rate of opening along the accurate locating aperture of direction of location guide pin, be the supporting apparatus of operation of desirable treatment lumbar vertebra compression fracture special use.

It is by the rose bit bar that Wicresoft of the present utility model fracture screw is inserted gag, the reaming conehead, the formations such as handle, it is to connect respectively handle and reaming conehead at the two ends of rose bit bar, handle, the rose bit bar, the reaming conehead connects successively, and the axle center is hollow-core construction, be convenient to guide pin or hollow screw tap and run through that to insert anchor point be opening part, be conducive to accurate opening or tapping, 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, leave limiting stand on the reaming conehead, the limiting stand that the diameter increase can be arranged apart from most advanced and sophisticated 0.3-1cm place at this reaming conehead, this limiting stand preferably is located at the place apart from the most advanced and sophisticated 0.5cm of conehead, can stop excessively thrusting of reaming conehead; Handle is movable with the rose bit bar or be fixedly connected with, 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.

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 macromolecular materials to be processed into, and preferably selects the medical stainless steel material, long service life is convenient to the Reusability of sterilizing.

Use procedure at Wicresoft's series apparatus: 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, by thin to passivity expansion paraspinal muscle step by step successively slightly, adjust sleeve pipe, make all sleeve pipes groove suitable for reading of a side be in same straight line (port recess also is in same straight line under the sleeve pipe at this moment), 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 screw openings device opening along guide pin, hollow screw tap tapping, 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 connecting bar (or claiming connection handle) and adjust one by one the direction of the U-shaped groove of pedicle screw nail tail, 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.

Wicresoft of the present utility model fracture screw is inserted gag and has been solved for a long time, putting tack operation relies on doctor's feel and observes opening, the opening wound is large, operation risk is large, the problems such as patient treatment misery and financial burden are large, especially adopt hollow and position limiting structure, can be by the little otch passage of Minimally Invasive Surgery, along the accurate locating aperture of the direction of guide pin, and the degree of depth is thrust in restriction voluntarily, accurately inserts for pedicle nail and lays a solid foundation.Having shortened widely operating time and rehabilitation duration, alleviated patient suffering and financial burden, is the fixedly corollary apparatus that is exclusively used in opening of multi-segmental pedicle screw device of desirable Wicresoft's lumbar vertebra compression fracture pedicle nail.

Description of drawings

Fig. 1: Wicresoft's fracture screw is inserted the gag structural representation

Fig. 2: rose bit bar and conehead structural representation among Fig. 1

Fig. 3: A-A cross-sectional schematic among Fig. 2

Fig. 4: handle arrangement sketch map among Fig. 1

Fig. 5: handle side TV structure sketch map among Fig. 4

Among the figure: 1-opening conehead, 2-rose bit bar, 3-limiting stand, 4-taper rod shaft are to groove, 5-handle, 6-hollow bar hole.

The specific embodiment

Further specify by reference to the accompanying drawings combinative structure of the present utility model:

It is to be made of rose bit bar 2, reaming conehead 1, handle 5 that Wicresoft's fracture screw is as shown in the figure inserted gag, wherein, connecting respectively handle 5 and reaming conehead 1 at the two ends of rose bit bar 2, this 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, and the reaming conehead can stop excessively thrusting of reaming conehead in the design that the most advanced and sophisticated 0.5cm of distance conehead place has diameter to increase; Handle is movable with the rose bit bar or be fixedly connected with, and handle, rose bit bar, reaming conehead connect successively, and coaxial be hollow core structures so that guide pin or screw tap run through accurate insertion opening part or anchor point.Leave limiting stand 3 on the described reaming conehead 1, the limiting stand of diameter increase can be arranged apart from most advanced and sophisticated 0.3-1cm place at this reaming conehead.Preferably limiting stand is located at the place apart from the most advanced and sophisticated 0.5cm of conehead.Described gag is to be made by medical metal material or stainless steel material.

Series Wicresoft lumbar vertebra compression fracture pedicle nail fixedly multi-segmental pedicle screw device mainly comprises and expands step by step sleeve, screw guiding outer sleeve, screw inserter, connects 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 metal material or stainless steel material to be processed into.

Claims (4)

1. Wicresoft's fracture screw is inserted gag, it is characterized in that being consisted of by rose bit bar, reaming conehead, handle, wherein, connecting respectively handle and reaming conehead at the two ends of rose bit bar, this reaming conehead is by the drill bit with little tooth, and handle is movable with the rose bit bar or be fixedly connected with, and handle, rose bit bar, reaming conehead connect successively, and coaxial is hollow core structures, with the perforation that is complementary of guide pin or screw tap.

2. Wicresoft as claimed in claim 1 fracture screw is inserted gag, it is characterized in that leaving limiting stand on the described reaming conehead, and the limiting stand of diameter increase can be arranged apart from most advanced and sophisticated 0.3-1cm place at this reaming conehead.

3. Wicresoft as claimed in claim 2 fracture screw is inserted gag, it is characterized in that described limiting stand is located at the place apart from the most advanced and sophisticated 0.5cm of conehead.

4. Wicresoft as claimed in claim 1 fracture screw is inserted gag, it is characterized in that described gag is to be made by medical metal material or stainless steel material.

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