CN101711702A

CN101711702A - Special tool used by internal and external fixation instrument for orthopaedic medical treatment

Info

Publication number: CN101711702A
Application number: CN200910220526A
Authority: CN
Inventors: 贾恩鹏; 贾洪伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-08
Filing date: 2009-12-08
Publication date: 2010-05-26
Anticipated expiration: 2029-12-08
Also published as: CN101711702B

Abstract

The invention relates to the technical field of orthopaedic medical treatment instruments, in particular to a special tool used by an internal and external fixation instrument for orthopaedic medical treatment. The special tool comprises a three-jaw annular grab, a tapping drill, a graduated scale, a drill fixture, a quick connector, a nail grasping elastic cannula, a screwing-out pipe, a left-right revolving straight type screwing rod or a left-right revolving ratchet screwing rod, and a short screwing rod or a long screwing rod, wherein the three-jaw annular grab is used for maintaining a fracture alignment after restoration; the tapping drill is used for drilling a threaded bone hole on the fracture alignment position; the graduated scale is used for measuring the depth of the threaded bone hole; the drill fixture is used for chucking the tapping drill; the quick connector is used for quickly replacing the drill fixture; the nail grasping elastic cannula is used for transferring a bone-joining nail or a bone-joining needle into the threaded bone hole; the screwing-out pipe is used for screwing out the broken bone nail or the broken bone needle which is positioned in the threaded bone hole; the left-right revolving straight type screwing rod or the left-right revolving ratchet screwing rod is matched with the screwing-out pipe; and the short screwing rod or the long screwing rod is matched with the left-right revolving straight type screwing rod or the left-right revolving ratchet screwing rod. The special tool used by the internal and external fixation instrument for the orthopaedic medical treatment can reduce the iatrogenic injury as much as possible, shorten the operation time, relieve the patient pain and ensure the rapidity and the safety of the operation.

Description

The specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment uses

Technical field

The present invention relates to the orthopedic medical device technical field, the specific purpose tool that particularly a kind of internal and external fixation instrument for orthopaedic medical treatment uses.

Background technology

The various orthopedic medical devices that are used for the treatment of extremity backbone, intertrochanteric fracture and fracture of femoral neck have at present had many progress, as patent of invention ZL200710012279.5 " one-sided adjustable external fixer and be used in combination device "; Patent of invention ZL200810012533.6 " function type Colles's fracture combined fixator " provides good orthopedic medical device.During the inside and outside fixed apparatus of installation orthopaedic medical treatment underwent surgery, use needed corresponding specific purpose tool and matches with it, just can receive better surgical effect.In the present employed instrument, use electric drill to carry out bore bone hole, still, the loading and unloading of the electric drill of use, drill chuck tool bother very much, and are also very difficult, use present drill chuck tool chucking drill bit not only to require great effort, and card are not tight.Drill bit, the screw tap thickness specification with nail, the pin screw thread coupling that snap in because of the drill chuck tool again are different, for carrying out smoothly of performing the operation, have to prepare several electric drills, drill chuck tool, so that bore different bones hole and bone silk hole more.Also there are some shortcomings in other instrument, has the probability that causes iatrogenic injury, and operating time is long, inconvenient operation, and patient will bear bigger misery.Therefore need be improved.

Summary of the invention

The purpose of this invention is to provide a kind of easy to use and can guarantee to receive the specific purpose tool that the internal and external fixation instrument for orthopaedic medical treatment of better surgical effect uses, so that reduce iatrogenic injury as far as possible, shorten operating time, alleviate the misery that patient will bear, make operation fast, finish safely.

The object of the present invention is achieved like this:

The specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment of the present invention uses, it is characterized in that comprising that the three-jaw annular that the fracture para-position kept after resetting is used grabs, the threading drill bit in threaded bone hole is bored at this fracture para-position position, tighten the drill chuck tool of this threading drill bit, change the snap joint of this drill chuck tool fast, synthetism nail or bone peg are delivered to bitch spring-backed quill in the described threaded bone hole, back-out the disconnecting nail that is arranged in described threaded bone hole or the pipe of back-outing of disconnecting spicule, the pipe of back-outing therewith be complementary about revolve straight type twist bar or about revolve ratchet and twist bar, revolve therewith straight type twist bar or about revolve ratchet and twist the weak point that bar matches and twist bar or the long bar of twisting

Described three-jaw annular is grabbed by single shackle, the double shackle that is hinged by the single therewith shackle of central shaft, by fixed axis therewith the arc face that is connected of double shackle be provided with the arc tooth, side plane is provided with the semicircle tooth bar of umbrella shape tooth, be arranged on the gear that the arc tooth of the semicircle tooth bar therewith of this single shackle upper end is meshed by the little axle of gear, be arranged on the gear fixture block that the umbrella shape tooth on the side plane of semicircle tooth bar therewith on this single shackle top is meshed, the little axle of the fixture block that passes described single shackle that the gear fixture block is connected therewith, be sleeved on the spring on the little axle of this fixture block, the wing nut that is complementary of the external screw thread of the little shaft end of fixture block therewith, the gear door that is connected with the tooth axle that is located on described single shackle upper surface is formed

The bottom of described single shackle is conical semicircular body, the end of this conical semicircular body is the taper tip, the top of single shackle is the bent bodies of variable cross-section, the hypomere of this bent bodies is provided with oblique groove, be provided with horizontal round tube hole in this oblique groove, this round tube hole matches with described central shaft, the middle hypomere of this bent bodies is provided with D shape hole of a horizontal circular hole connection and matches with the little axle of described fixture block, the middle epimere of this bent bodies is provided with a camber line connected in star, the epimere of this bent bodies is provided with D shape hole of a horizontal big hole connection and matches with the little axle of described gear

The bottom of described double shackle is conical semicircular body, under the intermediate of this conical semicircular body symmetric two conical arc bodies, the end of this conical arc body is the taper tip, the top of double shackle is the bent bodies of variable cross-section, the hypomere of this bent bodies is provided with oblique groove, the oblique groove of this oblique groove and described single shackle rotates and is slidingly matched, be provided with horizontal round tube hole in this oblique groove, this round tube hole rotates with described central shaft and cooperates, the epimere of this bent bodies is provided with a camber line connected in star, this camber line connected in star and described semi-circular teeth row culture secure fit, be provided with a horizontal round tube hole in this camber line connected in star, this horizontal round tube hole matches with the fixed axis of described semicircle tooth bar

The little axle of described gear is the step oblique crank Z, cylinder by large, medium and small three sections different-diameters is constituted, reduced diameter section is a D shape section cylinder, with described D shape hole tight fit, middle diameter segment is a cylinder, is slidingly matched with described horizontal circular hole, and enlarged diameter section is a cylinder, be provided with hex hole in its termination

One side of described gear fixture block is a segment, and opposite side is semicircular segment, is provided with the umbrella shape groove on the plane of this segment, and the umbrella shape tooth on the side plane of this umbrella shape groove and described semicircle tooth bar is meshed,

The little axle of described fixture block is provided with the D shape cylinder of boss for the end, and the front portion of this D shape cylinder is provided with external screw thread.The little axle of this fixture block passes from the D shape hole of single shackle, the cover upper spring, pass the D shape hole of gear fixture block again, the wing nut of screwing on, utilize the effect of spring, make the umbrella shape groove of gear fixture block and the umbrella shape groove of semicircle tooth bar reach engagement or non-engagement state, screw wing nut, single shackle and double shackle just firmly are fixed on the desired position.

Described threading drill bit is by co-axial drill pipe section, tapping section and drill bit segment constitute, tapping section and drill bit segment all are that trisection is established at the center with the axis, the spiral type chip area that communicates, the external diameter of the main cutting edge of drill bit segment directly equates with the root of screw tap silking, main cutting edge angle near the main cutting edge point is 90 °～95 °, main cutting edge angle near the main cutting edge tail end is 118 °～120 °, the point of drill bit segment is 1: 1～1.5 with the length of tail end ratio, the round bar portion external diameter of the screw tap silking tail end of tapping section is less than the root footpath of screw tap silking, the round bar portion tail end of tapping section is the triangle at the circumferencial direction five equilibrium, the diameter of screw tap silking is 1.5～10mm, tooth form angle α=29 °～42 °, 1=4 °～12 ° of tooth form subangle α, preceding thread root arc radius R=0.3mm～1.5mm, rear thread root arc radius r=0.15mm～1.0mm.

Described drill chuck tool is by drill chuck tool shell; Be located at the drill chuck inner core that the interior afterbody of this drill chuck tool shell is provided with internal tapered hole; The shell portion of drill chuck inner core is made the drill chuck head gear ring be slidingly matched therewith; The contacted circlip for shaft of drill chuck head gear ring forms therewith; The cylindrical front portion of this drill chuck inner core is concave station formula cylinder; The cylindrical leading section of this concave station formula be provided with perpendicular to axis, around the matrix groove in one week of external diameter; Circlip is packed in this matrix groove; Along even three the horizontal counterbores that distribute of the cylindrical circumferencial direction of this concave station formula

Described drill chuck head gear ring is a gear ring type body, form by annulus body and round platform annular solid, this round platform annular solid is provided with the equally distributed umbrella shape tooth perpendicular to axis, this umbrella shape tooth is meshed with the umbrella shape tooth of described drill chuck tool shell leading section, the inwall of annulus body and the cylindrical reducing diameter part of described concave station formula are slidingly matched, and the inwall of round platform annular solid and described concave station formula cylinder are slidingly matched.

Described snap joint is by steel-fastening pearl diminished shaft, vertically pass the bayonet lock screw mandrel of this steel-fastening pearl diminished shaft, the dress steel ball taper sheath that socket-connects of steel-fastening pearl diminished shaft therewith, be sleeved on the spring on this dress steel ball taper sheath, be sleeved on the degree of tightness steel ball sleeve on this spring, be located at the steel ball between this degree of tightness steel ball sleeve and the steel-fastening pearl diminished shaft, connect the bayonet lock screw of this degree of tightness steel ball sleeve and dress steel ball taper sheath, and form with the axis of cone overcoat that the cylindrical portion of described steel-fastening pearl diminished shaft socket-connects.When pulling degree of tightness steel ball sleeve, the contraction of spring makes the control of the less cone of the internal diameter of steel ball disengaging degree of tightness steel ball sleeve, stirs steel-fastening pearl diminished shaft, and steel ball just withdraws from the concave-curve groove of steel-fastening pearl diminished shaft, get final product sharp separation snap joint and drill chuck tool, otherwise can connect fast.Owing to be that bullet connects, guaranteed the stability of coaxial line.

Be provided with axially extending bore in the axle of described steel-fastening pearl diminished shaft, the interlude of this steel-fastening pearl diminished shaft is a shell portion, one end is short cone section, the other end is oval cone segments, be provided with internal thread hole at this shell portion near oval cone segments place perpendicular to axis, match with described bayonet lock screw mandrel in this internal thread hole, be provided with concave-curve groove in this oval cone segments near the shell portion place around this oval one week of cone perpendicular to axis, this concave-curve groove is done to roll with described steel ball and is cooperated, the drill chuck inner core tail end of this short cone section and described drill chuck tool is made tight fit

Described bayonet lock screw mandrel is made of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,

The end of described bayonet lock screw is the threaded rod of round boss, and the front portion of this threaded rod is thin round bar, and the external diameter of this thin round bar is provided with inner hexagonal hole less than the root footpath of described threaded rod on the end face of described round boss,

The described dress steel ball taper sheath step cylindrical sleeve that thick external diameter section and thin external diameter section are formed of serving as reasons, the drill pipe section tight fit of the endoporus of this thick external diameter section and described threading drill bit, afterbody in this thick external diameter section is provided with a pair of radially silk hole, the oval cone segments coupling of the internal taper hole of this thin external diameter section and described steel-fastening pearl diminished shaft, be provided with perpendicular to axis and the U-shaped opening that connects with internal taper hole and external diameter at the tail end of this thin external diameter section, the termination of this U-shaped opening is a semicircular arc, the shell portion of this U-shaped opening and described bayonet lock screw mandrel is slidingly matched, be provided with three equally distributed steel ball holes on the corresponding circumference of this U-shaped open bottom therewith in this thin external diameter section, this steel ball hole and steel ball are made matched in clearance, be provided with the narrow shape groove that communicates with internal taper hole in this thin external diameter section with corresponding position, steel ball hole, the thin round bar of this narrow shape groove and described bayonet lock screw is slidingly matched

Described degree of tightness steel ball sleeve is the pipe spare that the end has boss, taper hole section and cylindrical hole section are constituted the no boss end of this pipe spare is outside one's consideration taper hole section, conelet degree by the auger that continues successively in the middle of, a side of taper hole section is provided with a radially internal thread hole in the middle of this conelet degree, this radially has a step in the outer end of internal thread hole, the round boss of this step and described bayonet lock screw is slidingly matched, bayonet lock screw thread bar internal thread hole therewith is meshed

Described axis of cone overcoat is the pipe spare that the end has boss, and endoporus is a shoulder hole, and the macropore of this shoulder hole and the interplanting of described degree of tightness steel ball are slidingly matched, and the mediate cylindrical section of the aperture of this shoulder hole and described steel-fastening pearl diminished shaft is made tight fit.

Described bitch spring-backed quill is by managing in the opening elasticity, the locating sleeve of pipe phase suit in the opening elasticity therewith, and the positioning sleeve pipe cap that socket-connects of locating sleeve therewith is located in the opening elasticity in this positioning sleeve pipe cap spring and the steel ball on the pipe and forms,

Pipe is made of the short pipe section of the heavy wall that is provided with annular boss that continues successively, oval pipeline section, the oval Taper Pipe section of thin-walled, short circular cone pipeline section in the described opening elasticity, endoporus of this short circular cone pipeline section is circular arc, cylindrical, cylinder D shape or hexagon, middle part in the short pipe section of this heavy wall is provided with three steel ball holes that equidistantly distribute along circumference, in oval Taper Pipe section of this thin-walled and short circular cone pipeline section, be provided with the tapered opening of connection, the tail end of this tapered opening is circular arc

Described locating sleeve is made of the elongated pipeline section that continues successively, tapering transition pipeline section, the short and thick pipe section of annular knurl and concave station pipe section, pipe is slidingly matched in this elongated pipeline section and the described opening elasticity, this concave station pipe section is provided with external screw thread, pack in this concave station pipe section spring and being enclosed within the described opening elasticity in the pipe

The interlude of described positioning sleeve pipe cap and two ends section outer surface annular knurl, endoporus is made up of the enlarged diameter section that continues successively, middle diameter segment, bellmouth section and reduced diameter section, the external screw thread of establishing one section internal thread segment and described locating sleeve in the enlarged diameter section is complementary, the length of middle diameter segment less than the length of bellmouth section greater than the length of reduced diameter section.

The described pipe of back-outing is by managing in the opening elasticity, manage the positioning and locking sleeve pipe of phase suit therewith in the opening elasticity, the fulcrum sleeve pipe of positioning and locking sleeve pipe phase suit therewith, the endoporus left-hand thread pipe that the rear portion of pipe is connected in the opening elasticity therewith, endoporus left-hand thread pipe is made the positive and negative silking screw rod be threaded therewith, connecting pipe in this opening elasticity, endoporus left-hand thread pipe, the telescopic straight pin of positioning and locking forms

Described opening elasticity inner tube is made of the short circular cone pipeline section of the front end steep-taper that continues successively, the oval Taper Pipe section of Small Taper and straight length; The endoporus of the short circular cone pipeline section of this front end steep-taper is circular arc or cylindrical; The oval Taper Pipe section of this Small Taper is provided with four tapered openings that equidistantly distribute along circumference; The termination of this tapered opening is circle hole shape; The internal diameter of this straight length is less than the internal diameter of the oval Taper Pipe section of Small Taper; This straight length 59 afterbody be provided with a round tube hole; This round tube hole and described straight pin tight fit

The front portion of described endoporus left-hand thread pipe is provided with a circular radial through hole, this round tube hole and described straight pin tight fit, and the second half section of endoporus left-hand thread pipe is provided with female thread,

Described positioning and locking sleeve pipe is by the short circular cone pipeline section of the big tapering of the front end that continues successively, the minor diameter straight length, transition circle Taper Pipe section, than the major diameter straight length, the major diameter straight length is formed, the internal tapered hole of the short circular cone pipeline section of this front end auger degree matches with the short circular cone pipeline section of the big tapering of front end of pipe in the described opening elasticity, be provided with a chute at this in than the major diameter straight length, this chute and described straight pin are slidingly matched, the outer surface of this major diameter straight length is provided with external screw thread, the outside of this external screw thread is provided with outer-hexagonal, the inner surface of this major diameter straight length is provided with female thread, the external screw thread of this female thread and described positive and negative silking screw rod is complementary

Described positive and negative silking screw rod is made of major diameter external screw thread pipeline section and minor diameter female thread pipeline section, the endoporus of this major diameter external screw thread pipeline section is blind hole, its end is provided with interior hexagonal, the outer surface of this minor diameter female thread pipeline section is provided with left-hand thread, this left-hand thread is meshed with the interior left-hand thread of described endoporus left-hand thread pipe

Described fulcrum sleeve pipe is by the minor diameter straight length that continues successively, transition circle Taper Pipe section, constituted than major diameter straight length, major diameter pipeline section, the telescopic short circular cone pipeline section of this minor diameter straight length and described positioning and locking is made matched in clearance, this major diameter pipeline section is an outer-hexagonal shape pipeline section, tube wall is provided with female thread, and the external screw thread of this female thread and the telescopic short circular cone pipeline section of described positioning and locking is complementary.

Revolve straight type about described and twist bar by handle, the handle adjusting device that fixes and connect therewith, the rack that is connected of adjusting device therewith,

Described handle is straight type handle or camber handle, and this straight type handle is a voltage test pencil type handle, this camber handle by the flat type section of great circle arc and in establish axial spliced eye conical section constitute,

Described rack is by long round rod segment, the front end of this long round rod segment is axially arranged with an inner hexagonal hole, periphery is provided with an annular groove, be located at a steel ball hole that steel ball is housed in this annular groove, be socketed in the elastic collar on this annular groove, be located at the short and small conical rod section of this long round rod segment rear end, the gear that is located at this short and small conical rod section rear end is formed, the circular hole that a side of described elastic collar is provided with S shape opening, opposite side is provided with matches with described steel ball hole

Described adjusting device is by the control agent shell, the control agent block that is connected of control agent shell therewith, be located in this control agent shell about to control agent, therewith about to about the different K type that control agent is complementary to card, arc card, left, center, right adjusting slider,

Form by enlarged diameter section and reduced diameter section to control agent about described, be provided with a major diameter axial hole and one the minor diameter axial hole of continuing, major diameter axial hole therewith in the enlarged diameter section, the pore that continues of minor diameter axial hole therewith, this pore extends in the reduced diameter section, the front end in this major diameter axial hole is a female thread, this screwed hole is meshed with described control agent block, the gear of this major diameter axial hole and described rack is made matched in clearance, the small column of this minor diameter axial hole and described gear is slidingly matched, side at enlarged diameter section is provided with a radially U-shaped groove, opposite side is provided with a radially narrow groove

This pack into radially in the U-shaped groove to card about described different K type, described arc card is packed in this radially narrow groove and is stuck on the short and small conical rod section of described rack, the external arc of this arc card and the external arc of described enlarged diameter section match, the interior circular arc of this arc card and the interior circular arc of described short and small conical rod section match

Described left, center, right adjusting slider is rectangular thin slice body, is provided with boss in the middle of the outside, and inner surface is provided with the rectangle shallow slot, is provided with trapezoidal spring leaf in this rectangle shallow slot, is provided with the pushing button on this boss, and this pushing button exposes described control agent shell,

The middle part of described control agent shell is provided with an axial groove and described pushing button is made matched in clearance, is provided with a radially U-shaped opening in the rear end of this control agent shell, and this radially is provided with an alignment pin in the U-shaped opening,

Described control agent block is made of major diameter short cylindrical section and minor diameter short cylindrical section, and this minor diameter short cylindrical section is threaded with described control agent shell, and major diameter short cylindrical section and described rack are slidingly matched.

Revolve ratchet about described and twist bar by stubborn bar handle, revolve about twisting therewith that the bar handle is connected that ratchet-gear train is fit to be formed, revolve ratchet-gear train zoarium about this by flat ellipse gear ratchet wheel body, in two radially not isometrical open type butt joint circular holes of this flat ellipse gear ratchet wheel body, be provided with the gear of band rack, the ratchet of gears engaged therewith, about being provided with in the butt joint circular hole on a side end face of this flat ellipse gear ratchet wheel body to regulating block, there is a cover plate 94 to pass through cover screw flat ellipse gear ratchet wheel body coupling therewith, be provided with the spring eye and the steel ball hole that communicate on the circular hole sidewall of ratchet and be respectively charged into spring and steel ball being provided with, the circular hole of regulating block pin and ratchet with about fix to the circular hole of regulating block and to be connected, the round bar end of rack is provided with an annular shallow slot and matches with elastic collar.Utilize the cone boss portion of the elasticity of spring and ratchet opposite side to form elastic force and move, the regulating block pin pass ratchet circular hole and about behind the circular hole of regulating block, fix.

The head that described weak point is twisted bar is interior D shape hole head, outer D shape head, in-line notch head, the oral portion of cross bath, outer-hexagonal shape head, interior hexagonal head, outer triangular head or interior triangular head, the afterbody that described weak point is twisted bar is an outer-hexagonal shape

The head that described length is twisted bar is outer D shape head, in-line notch head, the oral portion of cross bath, outer-hexagonal shape head or outer triangular head, is provided with annular groove at long middle part of twisting bar, and long afterbody of twisting bar is outer-hexagonal shape afterbody or D shape cylinder afterbody.

The specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment of the present invention uses is the complete instrument of a cover, supporting use, indispensable: the three-jaw annular is grabbed the fracture para-position that is used to keep after the hand-reset, threading drill bit is for holing synchronously and tapping, solve the tapping of first boring back and caused warding off in addition the generation of new footpath phenomenon, the drive screw of drill chuck tool chucking threading drill bit and coupling, pin, snap joint is convenient to change fast the drill chuck tool, the bitch spring-backed quill can be with the drive screw of various different sizes, pin is delivered in the bone hole, broken nail, broken needle is back-outed to manage and is aimed at broken nail, broken needle is convenient to it is back-outed, about revolve straight type and twist bar, about revolve the length that ratchet is twisted bar and various configurations, the short bar afterbody outer-hexagonal body of twisting connects not only fast but also stablely, more convenient, rotary screwing thread is followed closely more effortlessly, each parts of pin and fastening instrument, the stubborn bar and the bitch spring-backed quill of various configurations are used.

The advantage of the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment of the present invention uses is as follows:

1) bone footpath scale of depth is visited into along bone silk hole, can accurately measure the length of required nail, pin screw thread, avoids screw thread to lack built on the sand, and screw thread has been grown and can have been caused bone silk hole opposite side soft tissue iatrogenic injury.

2) the bitch spring-backed quill can block the head of a nail backshank of various different sizes, makes its screw thread tip enter bone silk hole, twists bar by the length that is complementary with head of a nail backshank configuration specification, with stubborn bar it is screwed in the bone silk hole, fastening to external fixation device of being more convenient for.

3) will follow closely, pin is screwed in the process of bone silk hole, fractures because of certain reason causes nail, pin, the nail that the pipe of back-outing can in time will fracture expediently, pin take out.

4) the invention provides the stubborn bar of multiple different size, with nail, the pin that adapts to different size.

5) the special tool prodigiosin of internal and external fixation instrument for orthopaedic medical treatment use of the present invention reduces iatrogenic injury as far as possible, shortens operating time, alleviates the misery that patient will bear, and makes perform the operation quick, safety.

Description of drawings

The structural representation that Fig. 1 grabs for three-jaw annular of the present invention, Fig. 1-1 are the left view of Fig. 1, and Fig. 1-2 is front view (a), the side view (b) of double shackle, and Fig. 1-3 is front view (a), the side view (b) of single shackle.

Fig. 2 is the structural representation of drill chuck tool of the present invention, and Fig. 2-1 is the core arrangement sketch map of drill chuck tool.

Fig. 3 is the structural representation of threading drill bit of the present invention, and Fig. 3-1 is the right view of threading drill bit, and Fig. 3-2 is the structural representation of the silking portion of threading drill bit.

Fig. 4 is the structural representation of snap joint of the present invention, Fig. 4-1 is the vertical view of Fig. 4, and Fig. 4-2 is the structural representation of steel ball diminished shaft, and Fig. 4-3 is the structural representation of steel ball taper sheath, Fig. 4-4 is the B-B view of Fig. 4-3, and Fig. 4-5 is the structural representation of steel ball sleeve.

Fig. 5 is the structural representation of bitch spring-backed quill of the present invention, and Fig. 5-1 is the structural representation of pipe in the opening, and Fig. 5-2 is the structural representation of locating sleeve, and Fig. 5-3 is the structural representation of location cap bag.

Fig. 6 is the structural representation of the pipe of back-outing of disconnecting spicule of the present invention, Fig. 6-1 is the structural representation of opening elastic tube, Fig. 6-2 is the structural representation of endoporus left-hand screw fiber tube, Fig. 6-3 is the telescopic structural representation of positioning and locking, Fig. 6-4 is the structural representation of positive and negative helical screw, and Fig. 6-5 is the telescopic structural representation of fulcrum.

Fig. 7-1 twists the structural representation of the straight type handle of bar for revolving straight type about of the present invention, Fig. 7-2 twists the structural representation of bar camber handle for revolving straight type about of the present invention, Fig. 7-3 twists the structural representation of adjusting device for revolving straight type about of the present invention, Fig. 7-4 be about different K type to the structural representation of card, Fig. 7-5 is the structural representation of left, center, right adjusting slider.

Fig. 8 twists the internal structure sketch map of bar for revolving ratchet about of the present invention.Fig. 8-1 twists the external structure sketch map of bar for revolving ratchet about of the present invention,

Fig. 9 is the structural representation of various stubborn bars of the present invention.

The specific embodiment

The embodiment given below in conjunction with accompanying drawing further specifies the specific embodiment of the present invention.

As Fig. 1, shown in the 1-1, described three-jaw annular is grabbed by single shackle 1, the double shackle 2 that is hinged by the single therewith shackle 1 of central shaft 10, by fixed axis 11 therewith the arc face that is connected of double shackle 2 be provided with the arc tooth, side plane is provided with the semicircle tooth bar 3 of umbrella shape tooth, the gear 4 that is meshed by the little axle of the gear 5 arc teeth that are arranged on the semicircle therewith tooth bar 3 of this single shackle 1 upper end, be arranged on the gear fixture block 6 that the umbrella shape tooth on the side plane of semicircle therewith tooth bar 3 on this single shackle 1 top is meshed, the little axle 7 of the fixture block that passes described single shackle 1 that gear fixture block 6 is connected therewith, be sleeved on the spring 8 on the little axle 7 of this fixture block, the wing nut 9 that is complementary of the external screw thread of the little axle of fixture block 7 ends therewith, the gear door 12 that is connected with described tooth axle that is located on described single shackle 1 upper surface is formed

As Fig. 1-3a, shown in the b, the bottom of described single shackle 1 is conical semicircular body A, the end of this conical semicircular body A is the taper tip, the top of single shackle 1 is the bent bodies B of variable cross-section, the hypomere of this bent bodies B is provided with oblique groove C, be provided with horizontal round tube hole D in this oblique groove C, this round tube hole D matches with described central shaft 10, the middle hypomere of this bent bodies is provided with D shape hole F of a horizontal circular hole E connection and matches with the little axle of described fixture block, the middle epimere of this bent bodies is provided with a camber line connected in star G, the epimere of this bent bodies is provided with D shape hole K of a horizontal big hole H connection and matches with the little axle 5 of described gear

As Fig. 1-2 a, shown in the b, the bottom of described double shackle 2 is conical semicircular body, under the intermediate M of this conical semicircular body symmetric two conical arc body N, the end of this conical arc body N is the taper tip, the top of double shackle 2 is the bent bodies P of variable cross-section, the hypomere of this bent bodies P is provided with oblique groove S, the oblique groove C of this oblique groove S and described single shackle 1 is slidingly matched, be provided with horizontal round tube hole T in this oblique groove S, this round tube hole T matches with described central shaft 10, the epimere of this bent bodies is provided with a camber line connected in star V, this camber line connected in star V fixes with described semicircle tooth bar 3 and cooperates, be provided with a horizontal round tube hole W among this camber line connected in star V, this horizontal round tube hole W matches with the fixed axis 11 of described semicircle tooth bar 3

The little axle 5 of described gear is the step oblique crank Z, cylinder by large, medium and small three sections different-diameters is constituted, reduced diameter section is a D shape section cylinder, with described D shape hole K tight fit, middle diameter segment is a cylinder, is slidingly matched with described horizontal circular hole, and enlarged diameter section is a cylinder, be provided with hex hole in its termination

One side of described gear fixture block 6 is a segment, and opposite side is semicircular segment, is provided with the umbrella shape groove on the plane of this segment, and the umbrella shape tooth on the side plane of this umbrella shape groove and described semicircle tooth bar is meshed,

The little axle of described fixture block 7 is provided with the D shape cylinder of boss for the end, and the front portion of this D shape cylinder is provided with external screw thread.The little axle of this fixture block 7 D shape hole F from single shackle 1 pass, cover upper spring 8, pass the D shape hole of gear fixture block 6 again, the wing nut 9 of screwing on, utilize the effect of spring 8, make the umbrella shape groove of gear fixture block 6 and the X portion umbrella shape groove of semicircle tooth bar 3 reach engagement or non-engagement state, screw wing nut 9, single shackle 1 just firmly is fixed on the desired position with double shackle 2.

As Fig. 3, shown in the 3-1, described threading drill bit 16 is by coaxial drill pipe section, tapping section and drill bit segment constitute, tapping section and drill bit segment all are that trisection is established at the center with the axis, the spiral type chip area 17 that communicates, the external diameter of the main cutting edge of drill bit segment directly equates with the root of screw tap silking, main cutting edge angle near the main cutting edge point is 90 °～95 °, main cutting edge angle near the main cutting edge tail end is 118 °～120 °, the point of drill bit segment is 1: 1～1.5 with the length of tail end ratio, the round bar portion external diameter of the screw tap silking tail end of tapping section is less than the root footpath of screw tap silking, the round bar portion tail end of tapping section is the triangle (seeing Fig. 3-1) at the circumferencial direction five equilibrium, the diameter of screw tap silking is 1.5～10mm, tooth form angle α=29 °～42 °, 1=4 °～12 ° of tooth form subangle α, preceding thread root arc radius R=0.3mm～1.5mm, rear thread root arc radius r=0.15mm～1.0mm (seeing Fig. 3-3).

As shown in Figure 2, described drill chuck tool is by drill chuck tool shell, be located at afterbody in this drill chuck tool shell and be provided with the drill chuck inner core 13 of internal tapered hole, the shell portion of drill chuck inner core 13 is made the drill chuck head gear ring 14 be slidingly matched therewith, drill chuck head gear ring 14 contacted circlips for shaft 15 are formed therewith, the cylindrical front portion of this drill chuck inner core 13 is a concave station formula cylinder, the cylindrical leading section Z of this concave station formula is provided with perpendicular to axis, matrix groove (seeing Fig. 2-1) around one week of external diameter, circlip 15 is packed in this matrix groove, along three horizontal counterbores of the cylindrical circumferencial direction uniform distribution of this concave station formula

Described drill chuck head gear ring 14 is a gear ring type body, form by annulus body and round platform annular solid, this round platform annular solid is provided with the equally distributed umbrella shape tooth perpendicular to axis, this umbrella shape tooth is meshed with the umbrella shape tooth of described drill chuck tool shell leading section, the inwall of annulus body and the cylindrical reducing diameter part of described concave station formula are slidingly matched, and the inwall of round platform annular solid and described concave station formula cylinder are slidingly matched.

As Fig. 4,4-1, shown in the 4-2, described snap joint is by steel-fastening pearl diminished shaft 18, vertically pass the bayonet lock screw mandrel 19 of this steel-fastening pearl diminished shaft 18, the dress steel ball taper sheath 21 that socket-connects of steel-fastening pearl diminished shaft 18 therewith, be sleeved on the spring 23 on this dress steel ball taper sheath 21, be sleeved on the degree of tightness steel ball sleeve 22 on this spring 23, be located at the steel ball between this degree of tightness steel ball sleeve 22 and the steel-fastening pearl diminished shaft 21, the bayonet lock screw 20 that connects this degree of tightness steel ball sleeve 22 and dress steel ball taper sheath 21, and form with the axis of cone overcoat 24 that the cylindrical portion of described steel-fastening pearl diminished shaft 18 socket-connects

As Fig. 4, shown in the 4-1, be provided with axially extending bore 28 in the axle of described steel-fastening pearl diminished shaft 18, the interlude of this steel-fastening pearl diminished shaft 18 is a shell portion, one end is short cone section, the other end is oval cone segments, be provided with internal thread hole 25 at this shell portion near oval cone segments place perpendicular to axis, match with described bayonet lock screw mandrel 19 in this internal thread hole 25, be provided with concave-curve groove 26 in this oval cone segments near the shell portion place around this oval one week of cone perpendicular to axis, this concave-curve groove 26 is done to roll with described steel ball and is cooperated, drill chuck inner core 13 tail ends of this short cone section and described drill chuck tool are made tight fit

Described bayonet lock screw mandrel 19 is made up of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,

The end of described bayonet lock screw 20 is the threaded rod of round boss, and the front portion of this threaded rod is thin round bar, and the external diameter of this thin round bar is provided with inner hexagonal hole less than the root footpath of described threaded rod on the end face of described round boss,

As Fig. 4-1,4-2, shown in the 4-3, the described dress steel ball taper sheath 21 step cylindrical sleeve that thick external diameter section and thin external diameter section constitute of serving as reasons, the drill pipe section tight fit of the endoporus of this thick external diameter section and described threading drill bit, afterbody in this thick external diameter section is provided with a pair of radially silk hole, the oval cone segments coupling of the internal taper hole of this thin external diameter section and described steel-fastening pearl diminished shaft 18, be provided with perpendicular to axis and the U-shaped opening 27 that connects with internal taper hole and external diameter at the tail end of this thin external diameter section, the termination of this U-shaped opening is a semicircular arc, the shell portion of this U-shaped opening and described bayonet lock screw mandrel is slidingly matched, be provided with three equally distributed steel ball holes 28 on the corresponding circumference of this U-shaped open bottom therewith in this thin external diameter section, matched in clearance is made with steel ball in this steel ball hole 28, be provided with the narrow shape groove 29 that communicates with internal taper hole in this thin external diameter section with 28 corresponding positions, steel ball hole, this narrow shape groove 29 is slidingly matched with the thin round bar 33 of described bayonet lock screw

Shown in Fig. 4,4-5, described degree of tightness steel ball sleeve 22 has the pipe spare of boss for the end,

taper hole section

31 and 32 of cylindrical hole sections constitute the no boss end of this pipe spare is outside one's consideration taper hole section 30, conelet degree by the auger that continues successively in the middle of, a side of taper hole section is provided with a radially internal thread hole in the middle of this conelet degree, this radially has a step in the outer end of internal thread hole, the round boss of this step and described bayonet lock screw is slidingly matched, and bayonet lock screw thread bar internal thread hole therewith is meshed

As Fig. 4, shown in the 4-1, described axis of cone overcoat 24 has the pipe spare of boss for the end, endoporus is a shoulder hole, the macropore of this shoulder hole and described degree of tightness steel ball sleeve 22 are slidingly matched, the mediate cylindrical section of the aperture of this shoulder hole and described steel-fastening pearl diminished shaft is made tight fit, when pulling degree of tightness steel ball sleeve 22, the contraction of spring 23 makes the control of the less cone of the internal diameter of steel ball disengaging degree of tightness steel ball sleeve 22, stir steel-fastening pearl diminished shaft 18, steel ball just withdraws from the concave-curve groove 26 of steel-fastening pearl diminished shaft 18, get final product sharp separation snap joint and drill chuck tool, otherwise can connect fast.Owing to be that bullet connects, guaranteed the stability of coaxial line.

As shown in Figure 5, described bitch spring-backed quill is by managing 35 in the opening elasticity, the locating sleeve 36 of pipe 35 phase suits in the opening elasticity therewith, the positioning sleeve pipe cap 37 that socket-connects of locating sleeve 36 therewith, the spring 38 and the steel ball 34 that are located on the interior pipe of opening elasticity in this positioning sleeve pipe cap 37 are formed

Shown in Fig. 5-1, pipe 35 is by the short pipe section of the heavy wall that is provided with annular boss that continues successively in the described opening elasticity, oval pipeline section 39; the oval Taper Pipe section 40 of thin-walled; short circular cone pipeline section 41 constitutes; the endoporus 42 of this short circular cone pipeline section 41 is a circular arc; cylindrical; cylinder D shape or hexagon; the middle part in the short pipe section of this heavy wall is provided with three steel ball holes 45 that equidistantly distribute along circumference; in oval Taper Pipe section of this thin-walled and short circular cone pipeline section, be provided with the tapered opening 44 of connection; the tail end of this tapered opening 44 is circular arc 43

Shown in Fig. 5-2, described locating sleeve 36 is made of the elongated pipeline section that continues successively, tapering transition pipeline section, the short and thick pipe section of annular knurl and concave station pipe section, pipe is slidingly matched in this elongated pipeline section and the described opening elasticity, this concave station pipe section is provided with external screw thread, pack in this concave station pipe section spring 38 and being enclosed within the described opening elasticity in the pipe 35

Shown in Fig. 5-3, the interlude of described positioning sleeve pipe cap 37 and two ends section outer surface annular knurl, endoporus is made up of the enlarged diameter section that continues successively, middle diameter segment 46, bellmouth section 47 and reduced diameter section, the external screw thread of establishing one section internal thread segment and described locating sleeve 36 in the enlarged diameter section is complementary, the length of middle diameter segment less than the length of bellmouth section greater than the length of reduced diameter section.

As shown in Figure 6, the described pipe of back-outing is by managing 48 in the opening elasticity, manage the positioning and locking sleeve pipe 50 of 48 phase suits therewith in the opening elasticity, the fulcrum sleeve pipe 53 of positioning and locking sleeve pipe 50 phase suits therewith, the endoporus left-hand thread pipe 49 that the rear portion of pipe 48 is connected in the opening elasticity therewith, endoporus left-hand thread pipe 49 is made the positive and negative silking screw rod 51 that is threaded therewith, and the straight pin 52 that connects pipe 48, endoporus left-hand thread pipe 49, positioning and locking sleeve pipe 50 in this opening elasticity is formed

Shown in Fig. 6-1, pipe 48 is by the short circular cone pipeline section 55 of the big tapering of the front end that continues successively in the described opening elasticity, oval Taper Pipe section 54 of little tapering and straight length 59 constitute, the endoporus 56 of the short circular cone pipeline section 55 of this front end auger degree is a circular arc or cylindrical, the oval Taper Pipe section 54 of this little tapering is provided with four tapered openings 58 that equidistantly distribute along circumference, the termination of this tapered opening 58 is a circle hole shape 57, the internal diameter of this straight length 59 is less than the internal diameter of the oval Taper Pipe section 54 of little tapering, this straight length 59 afterbody be provided with a round tube hole 60, this round tube hole 60 and described straight pin 52 tight fits

Shown in Fig. 6-2, the front portion of described endoporus left-hand thread pipe 49 is provided with a circular radial through hole 61, this circular radial through hole 61 and described straight pin 52 tight fits, and the second half section of endoporus left-hand thread pipe 49 is provided with female thread,

Shown in Fig. 6-3, described positioning and locking sleeve pipe 50 is by the short circular cone pipeline section 63 of the big tapering of the front end that continues successively, the minor diameter straight length, transition circle Taper Pipe section 62, than major diameter straight length 67, the major diameter straight length constitutes, the internal tapered hole 64 of the short circular cone pipeline section 63 of this front end auger degree matches with the short circular cone pipeline section 55 of the big tapering of front end of pipe 48 in the described opening elasticity, be provided with a chute 65 at this in than the major diameter straight length, this chute 65 is slidingly matched with described straight pin, the outer surface of this major diameter straight length 67 is provided with external screw thread, the outside of this external thread section is provided with outer-hexagonal, the inner surface of this major diameter straight length is provided with female thread 66, this female thread 66 is complementary with the external screw thread of described positive and negative silking screw rod 51

Shown in Fig. 6-4, described positive and negative silking screw rod 51 is made of major diameter external screw thread pipeline section and minor diameter female thread pipeline section, the endoporus of this major diameter external screw thread pipeline section is blind hole, its end is provided with interior hexagonal, the outer surface of this minor diameter female thread pipeline section is provided with left-hand thread, this left-hand thread is meshed with the interior left-hand thread of described endoporus left-hand thread pipe 49

Shown in Fig. 6-5, described fulcrum sleeve pipe 53 is by the minor diameter straight length that continues successively, transition circle Taper Pipe section 68, constituted than major diameter straight length 70, major diameter pipeline section 69, the short circular cone pipeline section 63 of this minor diameter straight length and described positioning and locking sleeve pipe 50 is made matched in clearance, this major diameter pipeline section 69 is an outer-hexagonal shape pipeline section, tube wall is provided with female thread, and the external screw thread of the short circular cone pipeline section 63 of this female thread and described positioning and locking sleeve pipe 50 is complementary.

Shown in Fig. 7-1,7-2, revolve straight type about described and twist bar by handle, handle 71 adjusting device that fixes and connect therewith, the rack that is connected of adjusting device is formed therewith,

Described handle is straight type handle 71 or camber handle 72, and this straight type handle 71 is a voltage test pencil type handle, this camber handle 72 by the flat type section of great circle arc and in establish axial spliced eye conical section constitute,

Shown in Fig. 7-2, described rack is by long round rod segment 73, the front end of this long round rod segment is axially arranged with an inner hexagonal hole 74, periphery is provided with an annular groove, be located at a steel ball hole 84 that steel ball is housed in this annular groove, be socketed in the elastic collar on this annular groove, be located at the short and small conical rod section 81 of this long round rod segment rear end, being located at these short and small conical rod section 81 rear ends 83 preceding gears 82 forms, one side of described elastic collar is provided with S shape opening, opposite side is provided with the circular hole that matches with described steel ball hole 84

Shown in Fig. 7-1, described adjusting device is by control agent shell 79, the control agent block 80 that is connected of control agent shell 79 therewith, be located in this control agent shell 79 about to control agent, to about the different K type that control agent is complementary, form therewith to card 76 (Fig. 7-4), arc card 77, left, center, right adjusting slider 78 (Fig. 7-5)

Shown in Fig. 7-3, form by enlarged diameter section and reduced diameter section to control agent 75 about described, be provided with a major diameter axial hole 87 and one the minor diameter axial hole 85 of continuing, major diameter axial hole 87 therewith in the enlarged diameter section, the pore 86 that continues of minor diameter axial hole 85 therewith, this pore 86 extends in the reduced diameter section, the front end in this major diameter axial hole 87 is an internal thread hole, this screwed hole is meshed with described control agent block 80, gear on this major diameter axial hole and the described rack is made matched in clearance, this minor diameter axial hole 85 is slidingly matched with the small column of described gear, side at enlarged diameter section is provided with a radially U-shaped groove 88, opposite side is provided with a radially narrow groove 89

This pack into radially in the U-shaped groove 88 to card 76 about the different K type of stating, described arc card 77 is packed in this radially narrow groove 89 and is stuck on the short and small conical rod section 81 of described rack, the external arc of this arc card and the external arc of described enlarged diameter section match, the interior circular arc of this arc card and the interior circular arc of described short and small conical rod section match, label 82 among the figure is the short cylindrical section

Shown in Fig. 7-5, described left, center, right adjusting slider 78 is rectangular thin slice body, is provided with boss in the middle of the outside, inner surface is provided with the rectangle shallow slot, is provided with trapezoidal spring leaf in this rectangle shallow slot, is provided with the pushing button on this boss, this pushing button exposes described control agent shell 79

Shown in Fig. 7-1, the middle part of described control agent shell 79 is provided with an axial groove and described pushing button is made matched in clearance, is provided with a radially U-shaped opening 90 in the rear end of this control agent shell, and this radially is provided with an alignment pin in the U-shaped opening 90,

Shown in Fig. 7-1, described control agent block 80 is made of major diameter short cylindrical section and minor diameter short cylindrical section, and this minor diameter short cylindrical section is threaded with described control agent shell, and major diameter short cylindrical section and described rack 73 are slidingly matched.

As Fig. 8, shown in the 8-1, revolve ratchet about described and twist bar by stubborn bar handle 100, revolve about twisting therewith that bar handle 100 is connected that ratchet-gear train is fit to be formed, revolve ratchet-gear train zoarium about this by flat ellipse gear ratchet wheel body 91, in two radially not isometrical open type butt joint circular holes of this flat ellipse gear ratchet wheel body 91, be provided with the gear of band rack 92, the ratchet 93 of gears engaged therewith, about being provided with in the butt joint circular hole on a side end face of this flat ellipse gear ratchet wheel body 91 to regulating block 96, there is a cover plate 94 to pass through cover screw 95 flat ellipse gear ratchet wheel body 91 couplings therewith, be provided with the spring eye and the steel ball hole that communicate on the circular hole sidewall of ratchet 93 and be respectively charged into spring 98 and steel ball 101 being provided with, the circular hole of regulating block pin 97 and ratchet with about fix to the circular hole of regulating block and to be connected, the round bar end of rack is provided with an annular shallow slot and matches with elastic collar 99.Utilize the cone boss portion of the elasticity of spring and ratchet 93 opposite sides to form elastic force and move, regulating block pin 97 pass ratchet 93 circular hole and about behind the circular hole of regulating block, fix.

As shown in Figure 9, label 102 is that the weak point of interior D shape hole head is twisted bar, 103 and twisted bar, 104 for the weak point of outer D shape head and twist bar, 105 for the weak point of in-line notch head and twist bar, 106 for the weak point of the oral portion of cross bath and twist bar, 107 for the weak point of outer-hexagonal shape head and twist bar, 108 for the weak point of interior hexagonal head and twist bar, 109 for the weak point of outer triangular head and twist bar for the weak point of interior triangular head, the afterbody that described weak point is twisted bar is an outer-hexagonal shape

The head that described length is twisted bar is outer D shape head, in-line notch head, the oral portion of cross bath, outer-hexagonal shape head 110 or outer triangular head 111, be provided with annular groove 112 at long middle part of twisting bar, long afterbody of twisting bar is outer-hexagonal shape afterbody or D shape cylinder afterbody.

Claims

1. the specific purpose tool that uses of an internal and external fixation instrument for orthopaedic medical treatment, it is characterized in that comprising that the three-jaw annular that the fracture para-position kept after resetting is used grabs, the threading drill bit in threaded bone hole is bored at this fracture para-position position, tighten the drill chuck tool of this threading drill bit, change the snap joint of this drill chuck tool fast, synthetism nail or bone peg are delivered to bitch spring-backed quill in the described threaded bone hole, back-out the disconnecting nail that is arranged in described threaded bone hole or the pipe of back-outing of disconnecting spicule, the pipe of back-outing therewith be complementary about revolve straight type twist bar or about revolve ratchet and twist bar, revolve about therewith straight type twist bar or about revolve ratchet and twist the weak point that bar matches and twist bar or the long bar of twisting.

2. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that described three-jaw annular grabs by single shackle, the double shackle that is hinged by the single therewith shackle of central shaft, by fixed axis therewith the arc face that is connected of double shackle be provided with the arc tooth, side plane is provided with the semicircle tooth bar of umbrella shape tooth, be arranged on the gear that the arc tooth of the semicircle tooth bar therewith of this single shackle upper end is meshed by the little axle of gear, be arranged on the gear fixture block that the umbrella shape tooth on the side plane of semicircle tooth bar therewith on this single shackle top is meshed, the little axle of the fixture block that passes described single shackle that the gear fixture block is connected therewith, be sleeved on the spring on the little axle of this fixture block, the wing nut that is complementary of the external screw thread of the little shaft end of fixture block therewith, the gear door that is connected with described tooth axle that is located on described single shackle upper surface is formed

The bottom of described double shackle is conical semicircular body, under the intermediate of this conical semicircular body symmetric two conical arc bodies, the end of this conical arc body is the taper tip, the top of double shackle is the bent bodies of variable cross-section, the hypomere of this bent bodies is provided with oblique groove, the oblique groove of this oblique groove and described single shackle is slidingly matched, be provided with horizontal round tube hole in this oblique groove, this round tube hole matches with described central shaft, the epimere of this bent bodies is provided with a camber line connected in star, this camber line connected in star and described semi-circular teeth row culture are slidingly matched, be provided with a horizontal round tube hole in this camber line connected in star, this horizontal round tube hole matches with the fixed axis of described semicircle tooth bar

One side of described gear fixture block is provided with the umbrella shape groove for the segment opposite side is semicircular segment on the plane of this segment, the umbrella shape tooth on the side plane of this umbrella shape groove and described semicircle tooth bar is meshed,

The little axle of described fixture block is provided with the D shape cylinder of boss for the end, the front portion of this D shape cylinder is provided with external screw thread, the little axle of this fixture block passes from the D shape hole of single shackle, overlap upper spring, pass the D shape hole of gear fixture block again, the wing nut of screwing on, utilize the effect of spring, make the umbrella shape groove of gear fixture block and the umbrella shape groove of semicircle tooth bar reach engagement or non-engagement state, screw wing nut, single shackle and double shackle just firmly are fixed on the desired position.

The interlude of described positioning sleeve pipe cap and two ends section outer surface annular knurl, endoporus is made of the enlarged diameter section that continues successively, middle diameter segment, bellmouth section and reduced diameter section, the external screw thread of establishing one section internal thread segment and described locating sleeve in the enlarged diameter section is complementary, the length of middle diameter segment less than the length of bellmouth section greater than the length of reduced diameter section.

3. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that described threading drill bit is by co-axial drill pipe section, tapping section and drill bit segment constitute, tapping section and drill bit segment all are that trisection is established at the center with the axis, the spiral type chip area that communicates, the external diameter of the main cutting edge of drill bit segment directly equates with the root of screw tap silking, main cutting edge angle near the main cutting edge point is 90 °～95 °, main cutting edge angle near the main cutting edge tail end is 118 °～120 °, the point of drill bit segment is 1: 1～1.5 with the length of tail end ratio, the round bar portion external diameter of the screw tap silking tail end of tapping section is less than the root footpath of screw tap silking, the round bar portion tail end of tapping section is the triangle at the circumferencial direction five equilibrium, the diameter of screw tap silking is 1.5～10mm, tooth form angle α=29 °～42 °, 1=4 °～12 ° of tooth form subangle α, preceding thread root arc radius R=0.3mm～1.5mm, rear thread root arc radius r=0.15mm～1.0mm.

4. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that described drill chuck tool is by drill chuck tool shell, be located at afterbody in this drill chuck tool shell and be provided with the drill chuck inner core of internal tapered hole, the shell portion of drill chuck inner core is made the drill chuck head gear ring be slidingly matched therewith, the contacted circlip for shaft of drill chuck head gear ring is formed therewith, in the cylindrical front portion of this drill chuck inner core is concave station formula cylinder, the cylindrical leading section of this concave station formula is provided with perpendicular to axis, matrix groove around one week of external diameter, circlip 15 is packed in this matrix groove, along three horizontal counterbores of the cylindrical circumferencial direction uniform distribution of this concave station formula

Described drill chuck head gear ring is a gear ring type body, constitute by annulus body and round platform annular solid, this round platform annular solid is provided with the equally distributed umbrella shape tooth perpendicular to axis, this umbrella shape tooth is meshed with the umbrella shape tooth of described drill chuck tool shell leading section, the inwall of annulus body and the cylindrical reducing diameter part of described concave station formula are slidingly matched, and the inwall of round platform annular solid and described concave station formula cylinder are slidingly matched.

5. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that described snap joint is by steel-fastening pearl diminished shaft, vertically pass the bayonet lock screw mandrel of this steel-fastening pearl diminished shaft, the dress steel ball taper sheath that socket-connects of steel-fastening pearl diminished shaft therewith, be sleeved on the spring on this dress steel ball taper sheath, be sleeved on the degree of tightness steel ball sleeve on this spring, be located at the steel ball between this degree of tightness steel ball sleeve and the steel-fastening pearl diminished shaft, the bayonet lock screw that connects this degree of tightness steel ball sleeve and dress steel ball taper sheath, and form with the axis of cone overcoat that the cylindrical portion of described steel-fastening pearl diminished shaft socket-connects

Be provided with axially extending bore in the axle of described steel-fastening pearl diminished shaft, the interlude of this steel-fastening pearl diminished shaft is a shell portion, one end is short cone section, the other end is oval cone segments, be provided with internal thread hole at this shell portion near oval cone segments place perpendicular to axis, match with described bayonet lock screw mandrel in this internal thread hole, be provided with concave-curve groove in this oval cone segments near the shell portion place around this oval one week of cone perpendicular to axis, this concave-curve groove is done to roll with described steel ball and is cooperated, group makes tight fit in the drill chuck inner core tail end of this short cone section and described drill chuck tool

Described bayonet lock screw mandrel is made up of thread segment and shell portion, and the end face of this shell portion is provided with the screw edge of a knife,

The described dress steel ball taper sheath step cylindrical sleeve that thick external diameter section and thin external diameter section constitute of serving as reasons, the drill pipe section tight fit of the endoporus of this thick external diameter section and described threading drill bit, afterbody in this thick external diameter section is provided with a pair of radially silk hole, the oval cone segments coupling of the internal taper hole of this thin external diameter section and described steel-fastening pearl diminished shaft 18, be provided with perpendicular to axis and the U-shaped opening that connects with internal taper hole and external diameter at the tail end of this thin external diameter section, the termination of this U-shaped opening is a semicircular arc, the shell portion of this U-shaped opening and described bayonet lock screw mandrel is slidingly matched, be provided with three equally distributed steel ball holes on the corresponding circumference of this U-shaped open bottom therewith in this thin external diameter section, this steel ball hole and steel ball are made matched in clearance, be provided with the narrow shape groove that communicates with internal taper hole in this thin external diameter section with corresponding position, steel ball hole, the thin round bar of this narrow shape groove and described bayonet lock screw is slidingly matched

Described degree of tightness steel ball sleeve is the pipe spare that the end has boss, taper hole section and cylindrical hole section are formed the no boss end of this pipe spare is outside one's consideration taper hole section, conelet degree by the auger that continues successively in the middle of, a side of taper hole section is provided with a radially internal thread hole in the middle of this conelet degree, this radially has a step in the outer end of internal thread hole, the round boss of this step and described bayonet lock screw is slidingly matched, bayonet lock screw thread bar internal thread hole therewith is meshed

6. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that described bitch spring-backed quill is by managing in the opening elasticity, manage the locating sleeve of phase suit therewith in the opening elasticity, the positioning sleeve pipe cap that socket-connects of locating sleeve therewith, the spring and the steel ball that are located on the interior pipe of opening elasticity in this positioning sleeve pipe cap are formed

7. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that the described pipe of back-outing is by managing in the opening elasticity, manage the positioning and locking sleeve pipe of phase suit therewith in the opening elasticity, the fulcrum sleeve pipe of positioning and locking sleeve pipe phase suit therewith, the endoporus left-hand thread pipe that the rear portion of pipe is connected in the opening elasticity therewith, endoporus left-hand thread pipe is made the positive and negative silking screw rod be threaded therewith, connect pipe in this opening elasticity, endoporus left-hand thread pipe, the telescopic straight pin of positioning and locking is formed

Described opening elasticity inner tube is made of the short circular cone pipeline section of the front end steep-taper that continues successively, the oval Taper Pipe section of Small Taper and straight length; The endoporus of the short circular cone pipeline section of this front end steep-taper is circular arc or cylindrical; The oval Taper Pipe section of this Small Taper is provided with four tapered openings that equidistantly distribute along circumference; The termination of this tapered opening is circle hole shape; The internal diameter of this straight length is less than the internal diameter of the oval Taper Pipe section of Small Taper; This straight length afterbody be provided with a round tube hole; This round tube hole and described straight pin tight fit

8. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses is characterized in that revolving straight type about described twists bar by handle, the handle adjusting device that fixes and connect therewith, and the rack that is connected of adjusting device is formed therewith,

Described adjusting device is by the control agent shell, the control agent block that is connected of control agent shell therewith, be located in this control agent shell about to control agent, therewith about to about the different K type that control agent is complementary in card, arc card, a left side stone adjusting slider form

Constitute by enlarged diameter section and reduced diameter section to control agent about described, be provided with a major diameter axial hole and one the minor diameter axial hole of continuing, major diameter axial hole therewith in the enlarged diameter section, the pore that continues of minor diameter axial hole therewith, this pore extends in the reduced diameter section, the front end in this major diameter axial hole is a female thread, this screwed hole is meshed with described control agent block, the gear of this major diameter axial hole and described rack is made matched in clearance, the small column of this minor diameter axial hole and described gear is slidingly matched, side at enlarged diameter section is provided with a radially U-shaped groove, opposite side is provided with a radially narrow groove

9. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that revolving about described ratchet and twist bar by stubborn bar handle, revolve about twisting therewith that the bar handle is connected that ratchet-gear train is fit to be formed, revolve ratchet-gear train zoarium about this by flat ellipse gear ratchet wheel body, in two radially not isometrical open type butt joint circular holes of this flat ellipse gear ratchet wheel body, be provided with the gear of band rack, the ratchet of gears engaged therewith, about being provided with in the butt joint circular hole on a side end face of this flat ellipse gear ratchet wheel body to regulating block, there is a cover plate 94 to pass through cover screw flat ellipse gear ratchet wheel body coupling therewith, be provided with the spring eye and the steel ball hole that communicate on the circular hole sidewall of ratchet and be respectively charged into spring and steel ball being provided with, the circular hole of regulating block pin and ratchet with about fix to the circular hole of regulating block and to be connected, the round bar end of rack is provided with an annular shallow slot and matches with elastic collar.

10. the specific purpose tool that internal and external fixation instrument for orthopaedic medical treatment according to claim 1 uses, it is characterized in that it is interior D shape hole head, outer D shape head, in-line notch head, the oral portion of cross bath, outer-hexagonal shape head, interior hexagonal head, outer triangular head or interior triangular head that described weak point is twisted the head of bar, the afterbody that described weak point is twisted bar is an outer-hexagonal shape