CN201216637Y - Function type Colles fracture combined fixator - Google Patents
Function type Colles fracture combined fixator Download PDFInfo
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- CN201216637Y CN201216637Y CNU2008200145176U CN200820014517U CN201216637Y CN 201216637 Y CN201216637 Y CN 201216637Y CN U2008200145176 U CNU2008200145176 U CN U2008200145176U CN 200820014517 U CN200820014517 U CN 200820014517U CN 201216637 Y CN201216637 Y CN 201216637Y
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Abstract
The utility model relates to the technical field of the medical appliance for the department of orthopedics, in particular to a functional combined fixer for distal radial fracture. A globe joint spring structure composed of a screwed-in spring spherical head, a screwed-in spring rod, a spring, an internal thread spherical head bowl, an external thread spherical head bowl, a pin locking sliding block with slideways on two sides and a spherical bowl jackscrew provides the condition for the multi-directional and multi-angle movement range and the flexibility of the wrist joint; the combination of an outside hexagonal spherical bowl, a spherical bowl fastening cap, an open needle locking screw and a T-shaped locking needle structure provides the condition for making the optimal selection from the two selections: vertically threading two threaded needles on the second metacarpal bone, or transversely threading one threaded needle on the second metacarpal bone and the third metacarpal bone respectively; and through an adjusted angle stabilizing structure composed of a semispherical tooth face pin, a semispherical tooth face left hand screw nut, a semispherical tooth face right hand screw nut, a left hand thread adjusting rod, a right hand thread adjusting rod, a left hand screw nut bolt, a right hand screw nut bolt, a left hand screw nut and a right hand screw nut, according to the clinical demand, the fixer can be fixed conveniently along with the angle of the wrist joint when being fixed at a certain angle, so as to achieve stable fixing effect, thereby being greatly convenient for the operation and the early functional mobilization of the wrist joint.
Description
Technical field
This practicality newly relates to the orthopedic medical device technical field, particularly a kind of function type Colles's fracture combined fixator.
Background technology
Radius far-end fracture accounts for 11% of whole body fracture, accounts for 75% of forearm fracture, and is in the majority with the old people.The method for the treatment of radius far-end fracture traditionally is: manual reduction, Gypsum Fibrosum or clamping plate external fixation.This kind therapy can not be carried out early function activity; For closed fracture, open reduction, steel plate internal fixation can bring iatrogenic injury, and the early function activity scope has limitation, and pain is arranged; The unilateral multifunctional external fixation apparatus of using does not have the function of early ambulant at present; What radius far-end fracture power type external fixator adopted is simple ball-joint structure, and its functional activity scope and motility have significant limitation, and especially the limitation of purl structure is brought bigger difficulty to operation.Early stage in union of fracture lost best functional activity chance, can cause carpal dysfunction, increased many difficulty for follow-up joint function recovery, brings misery and financial burden to the patient, therefore need be improved.A kind of purl structure with T type lock tube is provided among utility model patent 200520089428.4 and the 200720013563.X, by the locking screw, T type lock tube, lock tube is pressed bowl, the purl gland constitutes, the locking screw rolls the cylinder of straight burr for the surface, one side is interior hexagonal, opposite side is a female thread, both sides communicate, one end of T type lock tube is the cylinder that has boss, this cylinder is provided with the circular radial through hole, raised head face at this T type lock tube is provided with axial round tube hole, the other end of this T type lock tube is thin round bar, root at this thin round bar is provided with the arcs of recesses circular groove, and the thin round bar of the front of this arcs of recesses circular groove is provided with and locks the external screw thread that the female thread of screw is complementary.Lock tube pressure bowl T type lock tube therewith is slidingly matched, it is oblate post that this lock tube is pressed the top of bowl, the bottom is the awl arc, inside is round tube hole, on the end face of this oblate post, be provided with centrosymmetric groove, and on the end face of awl curved portions, be provided with circular radial arc opening groove, the profile of purl gland is the oblate cylindricality of chamfering, the footpath is provided with the circular hole that communicates that does not wait in two apertures within it, cross centrage one side at the end face of big hole and be provided with radially that semicircular arc opening groove and shank are slidingly matched, form boss in the outside of semicircular arc opening groove radially and the end face of big hole, be convenient to the screw thread shank and enter in the open slot.The thin round bar of T type lock tube by the small sircle hole of this purl gland after with locking screw be connected.The result of use of this purl structure is fine, is applicable to all kinds of holders, fixed mount.
Summary of the invention
The new purpose of this practicality just provides a kind of not only have multidirectional range of activity and motility, have again and adjust the function type Colles's fracture combined fixator that angle is carried out fixed stability, for the functional activity that carpal joint is early stage has been created condition, embody Wicresoft's theory, be very easy to operation and functional activity.
The new purpose of this practicality realizes by following technical proposals:
The function type Colles's fracture combined fixator that this practicality is new, the purl structure that comprises band T type lock tube, be located at the screw needle in this purl structure, it is characterized in that by the ball-joint spring structure, the ball-joint spring structure is made angle adjustment and the rock-steady structure that the side connects therewith, the radius purl structure that is connected of an end of ball-joint spring structure therewith, the other end of ball-joint spring structure is connected therewith be used to connect second metacarpal bone and metacarpal bone,middle radially the slide block combinative structure or be used to of the fixed form purl structure ball bowl combinative structure that is connected the vertical fixed form purl of second metacarpal bone structure form
Described ball-joint spring structure is sleeved on the spring on this screw-in spring lever by the screw-in spring lever that is connected with described radius purl structure, and screw in the screw-in spring bulb that is connected on this spring and form,
Described slide block combinative structure is by the internal and external threads bulb bowl that is connected with described screw-in spring bulb, and the both sides that are connected of the internal and external threads bulb bowl purl slide block and the ball bowl jackscrew that are provided with chute formed therewith,
Described ball bowl combinative structure by with screw in the outer-hexagonal ball bowl that the spring bulb is connected, by ball bowl fastening cap therewith the ball bowl bar that is connected of outer-hexagonal ball bowl form, an end of this ball bowl bar is oval bar,
Described adjustment angle rock-steady structure by about revolve the threaded adjustment screw rod, screw in the left-handed screw of the hemisphere flank of tooth, the right handed nuts of revolving threaded adjustment screw rod both sides about this, through the soket head cap screw hemisphere flank of tooth latch that is connected of the left-handed screw of the hemisphere flank of tooth, right handed nuts therewith respectively, revolve left-handed screw latch, the right handed nuts latch of threaded adjustment screw rod both sides about screw-in, and left-handed silking nut, dextrorotation silking nut are formed.
What described radius purl structure and second metacarpal bone fixed form purl structure adopted is the purl structure of described band T type lock tube,
Radially fixed form purl structure is by opening purl silk for described second metacarpal bone and metacarpal bone,middle, and the locking screw that is connected of opening purl silk constitutes therewith, and the interior chute of this opening purl silk, locking screw and described purl slide block is slidingly matched.
One side of described screw-in spring bulb is a spheroplast, opposite side is a cylinder, be provided with the spiral type convex-concave arc groove that screws in spring at this cylindrical front end, cylindrically in this convex-concave arc groove rear end radially be provided with orthogonal two manholes, the footpath is provided with two waney circular holes that communicate within it, described screw-in spring lever one end is a cylinder, be provided with the spiral type convex-concave arc groove that screws in spring at this cylindrical front end, cylindrically in this convex-concave arc groove rear end radially be provided with orthogonal two manholes, the other end of described screw-in spring lever is oval bar, the two ends spring pitch of described spring is less than the spring pitch of interlude, and the two ends spring section of this spring fine pith tight fit respectively is screwed on the spiral type convex-concave arc groove of described screw-in spring bulb one side and screws on the spiral type convex-concave arc groove of spring lever one end.
One side of described internal and external threads bulb bowl is an outer-hexagonal shape, opposite side is a cylinder, on this cylinder, be provided with external screw thread, cylindrical internal diameter is provided with two circular holes that communicate of size, on the internal diameter of this big hole, be provided with one section female thread, the spheroplast of the female thread of this big hole and described internal and external threads bulb makes matched in clearance, be provided with the spherical arc that is complementary with spheroplast on the inner hole surface less than spheroplast's diameter of the outer-hexagonal shape end of described internal and external threads bulb bowl, ball bowl jackscrew is screwed in the described internal and external threads bulb bowl along its female thread.
The both ends of described purl slide block are the arcual cuboid that differs in size, in the big segmental arc of this cuboid, be provided with internal thread hole perpendicular to the perforation of axis, the external screw thread of this internal thread hole and described internal and external threads bulb bowl is complementary, in this cuboid, be provided with three radial grooves that connect mutually, the width and the degree of depth of both sides chute are symmetry equivalent, the width of the chute of pars intermedia and the degree of depth are less than the width and the degree of depth of both sides chute, and the end of these three radial grooves that connect mutually is an arc.
The female thread of the external screw thread of described ball bowl jackscrew and described internal and external threads bulb bowl is complementary,
The front end of described ball bowl jackscrew is a short cylindrical, is provided with the interior spherical arc that is complementary with spheroplast in the end of this short cylindrical, is provided with inner hexagonal hole in the external screw thread end of described ball bowl jackscrew.
Ball-joint spring structure and slide block combinative structure be connected and function is achieved in that the external screw thread of internal and external threads bulb bowl screws on the purl slide block, in the silk hole perpendicular to the perforation of axis in the big segmental arc of cuboid, both ends of the spring fine pith part tight fit respectively is screwed on the spiral type convex-concave arc groove of described screw-in spring bulb one side and screws on the spiral type convex-concave arc groove of spring lever one end and connects into a molectron.Internal thread hole from oval club head along internal and external threads bulb bowl inserts until the globular arc face that passes outer-hexagonal shape portion, and the diameter portion of spheroplast is stuck in the spherical arc, ball bowl jackscrew also is screwed into along its female thread, the purl slide block is tightened ball bowl jackscrew in angle of rotating in the spheroplast and clinical fixing after needed angle is complementary, and can reach ball-joint and firmly act on.
One side of described outer-hexagonal ball bowl is an outer-hexagonal, opposite side is cylinder and is provided with external screw thread, and internal diameter is provided with two circular holes that communicate of size, and great circle aperture and spheroplast's diameter are made matched in clearance, on the inner hole surface of outer-hexagonal end, be provided with spherical arc with spheroplast's coupling less than spheroplast's diameter
One side of described ball bowl bar is a short cylinder, the end face of this short cylinder is provided with the endosphere arcwall face that the spheroplast with described screw-in spring bulb is complementary, the big hole of the external diameter of this short cylinder and described outer-hexagonal ball bowl is made matched in clearance, the opposite side of described ball bowl bar is oval bar, described ball bowl fastening cap is an outer-hexagonal shape, internal diameter is provided with two circular holes that communicate of size, on the inwall of this big hole, be provided with one section female thread, the external screw thread of one side of this female thread and described outer-hexagonal ball bowl is complementary, and the oval bar of the opposite side of this small sircle hole and described ball bowl bar is made matched in clearance.
The connection of described ball bowl combinative structure and function are achieved in that passes the molectron that screws in the spring bulb, screws in spring lever, spring connects into along outer-hexagonal ball bowl one side large aperture circular hole, in spheroplast's diameter is stuck in the spherical arc of outer-hexagonal end, the female thread of ball bowl fastening cap is packed into and is tightened on the external screw thread of outer-hexagonal ball bowl one side along the oval bar portion of ball bowl bar one side, ball bowl combinative structure is after the angle of rotating in the spheroplast and clinical fixing needed angle are complementary, tighten ball bowl fastening cap, can reach the firm effect of ball-joint.
The external diameter of the locking screw of described purl mechanism and the internal chute of purl slide block both sides are slidingly matched, circular radial through hole on the cylinder of the T type lock tube of described purl mechanism is slidingly matched with the oval bar that screws in spring lever one end and the oval bar of ball bowl bar one end respectively, and the lock tube of described purl mechanism presses the arcwall face of the circular radial arc opening groove on the end face of bottom awl curved portions of bowl to be slidingly matched with the oval bar of screw-in spring lever one end and the oval bar of ball bowl bar one end respectively.
The connection of the purl structure of described band T type lock tube and function are achieved in that the cylindrical circular radial through hole of T type lock tube is contained on the oval bar with ball bowl bar, lock tube presses bowl to pack into along the thin round bar external screw thread of T type lock tube one side head, up to cylinder part, the purl gland is also packed into along its direction, and can press on the bowl end face umbrella shape groove at lock tube and rotate, screw in the locking screw, the purl structure of this moment can be done the distance of threading a needle on oval bar, angle, any adjustment of direction, tighten the locking screw, T type lock tube, lock tube is pressed bowl and is enclosed in the interior screw needle of purl gland vertical direction groove under the pressure of purl gland axis shift, firmly is stabilized on the oval bar simultaneously.
The head of described hemisphere flank of tooth latch is a hemisphere, the bottom is thin round bar, be provided with two circular holes that communicate of size in the hemispheroidal vertical direction of this latch, the cylindrical section of soket head cap screw and threaded rod section are passed the round tube hole of this hemisphere flank of tooth latch, on the hemispheroidal plane of this latch, be provided with the five equilibrium umbrella shape groove at center, the left-handed screw of the described hemisphere flank of tooth, the head of right handed nuts is a hemisphere, on this hemispheroidal plane, be provided with the five equilibrium umbrella shape groove at center, be complementary at this hemispheroidal vertical screw thread that is provided with female thread and soket head cap screw, hemispheroidal opposite side is a flat-square shaped, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be provided with the levogyrate inner thread or the dextrorotation female thread that connect perpendicular to axis, the five equilibrium umbrella shape groove that this hemispheroidal plane was provided with the center is meshed with the five equilibrium umbrella shape groove of crossing the center of described hemisphere flank of tooth latch, in the arcwall face of this flat-square shaped, be provided with the female thread that radially connects, the female thread of left-hand nut is a left hand thread, the female thread of right-handed thread nut is a right-handed thread, the interlude that revolves the threaded adjustment screw rod about described is an outer-hexagonal shape, hexagonal in addition both sides are round bar, the outer end of this round bar is respectively equipped with left hand thread and right-handed thread, this left hand thread and right-handed thread respectively with the left-handed screw of the described hemisphere flank of tooth, the female thread of right handed nuts is complementary, described left-handed screw latch, one end of right handed nuts latch is a flat-square shaped, the other end is thin round bar, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be respectively equipped with the levogyrate inner thread hole and the dextrorotation female thread that connect perpendicular to axis, this female thread and described about revolve threaded adjustment screw rod two ends external screw thread be complementary.The female thread of described left-hand nut, right-handed thread nut also with described about revolve threaded adjustment screw rod two ends external screw thread be complementary.
The thin round bar of described hemisphere flank of tooth latch and left-handed screw latch, right handed nuts latch is slidingly matched with radially also orthogonal two round tube holes that screw in the spring bulb and screw in the cylinder part of spring lever respectively.
The connection of described adjustment angle rock-steady structure and function be achieved in that with revolve about the hemisphere flank of tooth screw and about revolve revolve about the silking nut is screwed in respectively by its sequencing threaded adjustment bar both sides about revolve on the threaded rod, the hemisphere that soket head cap screw is passed hemisphere flank of tooth latch is circular hole and be screwed in the hemisphere radially in the silk hole that revolves screw about the hemisphere flank of tooth radially, according to clinical fixing required distance and angle, the thin round bar of latch is inserted respectively in the radially orthogonal through hole in cylinder leading section spiral type convex-concave arcuate groove rear portion that screws in spring bulb and screw-in spring lever, tighten soket head cap screw subsequently, make the groove engagement of two hemispherical plane firm, revolve the silking nut about tightening respectively again, make the fixed angle that spring forms and have stability.About revolve the screw latch and about revolve the threaded adjustment screw rod also by the combination of its sequencing.Its effect is spring is produced stretch or compression, and the function that spring stretches or compression is laid in provides condition for adjusting the articular surface gap, simultaneously to adjusting the fixing stability that increased again of angle.When clinical when needing the carpal joint early function activity, revolve about loosening the silking nut and about revolve the threaded adjustment bar, just can successfully unload and adjust the angle rock-steady structure, spring function will be brought into play carpal joint and do palmar flexion, the back of the body is stretched, chi is inclined to one side, oar is inclined to one side functional activity at this moment.
One end of described opening purl silk is the cylinder of arc head, on the intravital axis of this cylinder, be provided with the internal chute of doing to be slidingly matched with the screw thread shank perpendicular to the perforation of axis, the two ends up and down of this internal chute are provided with the arcwall face that the hemicycle cylinder with shank is complementary, begin to open a opening that communicates with internal chute from the lower end arcwall face of internal chute greater than the shank diameter in a side of this cylindrical axis, screw thread shank from then on opening enters in the arcwall face of internal chute upper end, the other end of opening purl silk is for being narrower than cylindrical threaded screw rod section, the locking screw rolls the cylinder of straight burr for the surface, one side is interior hexagonal, opposite side is a female thread, both sides communicate, and the threaded screw rod section of this female thread and opening purl silk is complementary.
The connection of described opening purl silk and function are achieved in that the barrel portion of opening purl silk, the threaded screw rod part is packed into from the chute of purl slide block one side, the locking screw is packed into and is screwed on the threaded screw rod from the chute of relative opposite side, angle that opening purl silk rotates in chute and the distance that moves are along with after the clinical angle and distance that penetrates the screw needle in the bone is complementary, tighten the locking screw, screw needle just is stabilized on the plane of purl slide block both sides, cooperatively interact with the purl structure that is contained on the oval bar that screws in spring lever, created condition for selecting the best configuration of threading a needle.
Description of drawings
Fig. 1 is the new structural representation of this practicality.
Fig. 2 is the machine made structural representation of another kind of purl of Fig. 1.
Fig. 3 is the structural representation of the adjustment angle of Fig. 1.
Fig. 4 is Fig. 3 two hemispheres groove engagement A-A cutaway view.
Fig. 5 is the stable angle structural representation of Fig. 1.
Fig. 6 is the sketch map of the adjustment fixed angle of Fig. 1.
The specific embodiment
Further specify the new specific embodiment of this practicality below in conjunction with the given embodiment of accompanying drawing.
The function type Colles's fracture combined fixator that this practicality is new, the purl structure that comprises band T type lock tube, be located at the screw needle in this purl structure, it is characterized in that by the ball-joint spring structure, the ball-joint spring structure is made angle adjustment and the rock-steady structure that the side connects therewith, the radius purl structure that is connected of an end of ball-joint spring structure therewith, the other end of ball-joint spring structure is connected therewith be used to connect second metacarpal bone and metacarpal bone,middle radially the slide block combinative structure or be used to of the fixed form purl structure ball bowl combinative structure that is connected the vertical fixed form purl of second metacarpal bone structure form
Described ball-joint spring structure is sleeved on the spring 3 on this screw-in spring lever 2 by the screw-in spring lever 2 that is connected with described radius purl structure, and screw in the screw-in spring bulb 1 that is connected on this spring 3 and form,
As shown in Figure 1, described slide block combinative structure is by the internal and external threads bulb bowl 4 that is connected with described screw-in spring bulb 1, and the both sides that are connected of the internal and external threads bulb bowl 4 purl slide block 5 and the ball bowl jackscrew 6 that are provided with chute formed therewith,
As shown in Figure 2, described ball bowl combinative structure by with screw in the outer-hexagonal ball bowl 16 that spring bulb 4 is connected, by ball bowl fastening cap 18 therewith the ball bowl bar 17 that is connected of outer-hexagonal ball bowl 16 form, an end of this ball bowl bar 17 is oval bar,
Described adjustment angle rock-steady structure by about revolve threaded adjustment screw rod 40, screw in the left-handed screw of the hemisphere flank of tooth, the right handed nuts 38 of revolving threaded adjustment screw rod 40 both sides about this, through the soket head cap screw 39 hemisphere flank of tooth latch 37 that is connected of the left-handed screw of the hemisphere flank of tooth, right handed nuts 38 therewith respectively, revolve left-handed screw latch, the right handed nuts latch 42 of threaded adjustment screw rod 40 both sides about screw-in, the left-handed silking nut, the dextrorotation silking nut 41 that are connected of left hand thread latch, right-handed thread latch 42 formed therewith respectively.
What described radius purl structure and second metacarpal bone fixed form purl structure adopted is the purl structure of described band T type lock tube,
As shown in Figure 1, described second metacarpal bone and metacarpal bone,middle radially fixed form purl structure by opening purl silk 22, the locking screw that is connected of opening purl silk 22 23 constitutes therewith, and this opening purl silk 22, locking screw 23 are slidingly matched with chute in the described purl slide block 5.
As shown in Figure 2, one side of described screw-in spring bulb 1 is a spheroplast, opposite side is a cylinder, be provided with the spiral type convex-concave arc groove 7 that screws in spring at this cylindrical front end, cylindrically in these convex-concave arc groove 7 rear ends radially be provided with orthogonal two manholes 8, the footpath is provided with two waney circular holes that communicate within it, described screw-in spring lever 2 one ends are cylinder, be provided with the spiral type convex-concave arc groove 9 that screws in spring at this cylindrical front end, cylindrically in this convex-concave arc groove rear end radially be provided with orthogonal two manholes 10, on these manhole 10 inwalls, be provided with two orthogonal round tube holes, the other end of described screw-in spring lever 2 is oval bar, the two ends spring pitch of described screw-in spring 3 is less than the spring pitch of interlude, and this two ends spring section that screws in spring fine pith tight fit respectively is screwed on the spiral type convex-concave arc groove 7 of described screw-in spring bulb 1 one sides and screws on the spiral type convex-concave arc groove 9 of spring lever one end.
One side of described internal and external threads bulb bowl 4 is an outer-hexagonal shape, opposite side is a cylinder, on this cylinder, be provided with external screw thread 12, cylindrical internal diameter is provided with two circular holes that communicate of size, on the internal diameter of this big hole, be provided with one section female thread, the spheroplast of the female thread of this big hole and described internal and external threads bulb makes matched in clearance, be provided with the spherical arc 13 that is complementary with spheroplast on the inner hole surface less than spheroplast's diameter of the outer-hexagonal shape end of described internal and external threads bulb bowl, ball bowl jackscrew 6 is screwed in the described internal and external threads bulb bowl 4 along its female thread.
The both ends of described purl slide block 5 are the arcual cuboid that differs in size, in the big segmental arc of this cuboid, be provided with internal thread hole perpendicular to the perforation of axis, the external screw thread 12 of this internal thread hole and described internal and external threads bulb bowl is complementary, in this cuboid, be provided with three radial grooves 14 that connect mutually, the width and the degree of depth of both sides chute are symmetry equivalent, the width of intermediary chute and the degree of depth are less than the width and the degree of depth of both sides chute, and the end of these three radial grooves 14 that connect mutually is an arc.
One side of described outer-hexagonal ball bowl 16 is an outer-hexagonal, opposite side is cylinder and is provided with external screw thread, internal diameter is provided with two circular holes that communicate of size, great circle aperture and spheroplast's diameter are made matched in clearance, are provided with the spherical arc with spheroplast's coupling on the inner hole surface of outer-hexagonal end less than spheroplast's diameter.
The female thread of the external screw thread of described ball bowl jackscrew 6 and described internal and external threads bulb bowl 4 is complementary, the front end of described ball bowl jackscrew 6 is a short cylindrical, in the end of this short cylindrical, be provided with the interior spherical arc 15 that is complementary with spheroplast, in the external screw thread end of described ball bowl jackscrew 6, be provided with inner hexagonal hole.
One side of described ball bowl bar 17 is a short cylinder, the end face of this short cylinder is provided with the endosphere arcwall face 20 that the spheroplast with described screw-in spring bulb is complementary, the big hole of the external diameter of this short cylinder and described outer-hexagonal ball bowl 16 is made matched in clearance, the opposite side of described ball bowl bar 17 is oval bar, described ball bowl fastening cap is an outer-hexagonal shape, internal diameter is provided with two circular holes that communicate of size, on the inwall of this big hole, be provided with one section female thread, the external screw thread of one side of this female thread and described outer-hexagonal ball bowl is complementary, and the oval bar 21 of the opposite side of this small sircle hole and described ball bowl bar is made matched in clearance.
The external diameter of the locking screw 23 of described purl mechanism and the internal chute of purl slide block 5 both sides are slidingly matched, circular radial through hole on the cylinder of the T type lock tube 24 of described purl mechanism is slidingly matched with the oval bar that screws in spring lever one end and the oval bar of ball bowl bar one end respectively, and the lock tube of described purl mechanism presses the arcwall face of the circular radial arc opening groove on the end face of bottom awl curved portions of bowl 25 to be slidingly matched with the oval bar of screw-in spring lever one end and the oval bar of ball bowl bar one end respectively.
The head of described hemisphere flank of tooth latch 37 is a hemisphere, the bottom is thin round bar, be provided with two circular holes that communicate of size in the hemispheroidal vertical direction of this latch, the cylindrical section of soket head cap screw 39 and threaded rod section are passed the round tube hole 43 of this hemisphere flank of tooth latch, on the hemispheroidal plane of this latch, be provided with the five equilibrium umbrella shape groove 44 at center, the left-handed screw of the described hemisphere flank of tooth, the head of right handed nuts 38 is a hemisphere, on this hemispheroidal plane, be provided with the five equilibrium umbrella shape groove 46 at center, be complementary at this hemispheroidal vertical screw thread that is provided with female thread and soket head cap screw, hemispheroidal opposite side is a flat-square shaped, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be provided with the levogyrate inner thread or the dextrorotation female thread 47 that connect perpendicular to axis, the five equilibrium umbrella shape groove that this hemispheroidal plane was provided with the center is meshed with the five equilibrium umbrella shape groove of crossing the center of described hemisphere flank of tooth latch, in the arcwall face of this flat-square shaped, be provided with the female thread that radially connects, the female thread of left-hand nut is a left hand thread, the female thread of right-handed thread nut is a right-handed thread, the interlude that revolves the threaded adjustment screw rod about described is an outer-hexagonal shape, hexagonal in addition both sides are round bar, the outer end of this round bar is respectively equipped with left hand thread and right-handed thread, this left hand thread and right-handed thread respectively with the left-handed screw of the described hemisphere flank of tooth, the female thread of right handed nuts is complementary, described left-handed screw latch, one end of right handed nuts latch is a flat-square shaped, the other end is thin round bar, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be respectively equipped with the levogyrate inner thread hole and the dextrorotation female thread that connect perpendicular to axis, this female thread and described about revolve threaded adjustment screw rod 40 two ends external screw thread be complementary.The female thread of described left-hand nut, right-handed thread nut also with described about revolve threaded adjustment screw rod two ends external screw thread be complementary.
The thin round bar of described hemisphere flank of tooth latch and left-handed screw latch, right handed nuts latch is slidingly matched with radially also orthogonal two round tube holes that screw in the spring bulb and screw in the cylinder part of spring lever respectively.
One end of described opening purl silk 22 is the cylinder of arc head, on the intravital axis of this cylinder, be provided with the internal chute of doing to be slidingly matched with the screw thread shank perpendicular to the perforation of axis, the two ends up and down of this internal chute are provided with the arcwall face 27 that the hemicycle cylinder with shank is complementary, begin to open a opening that communicates with internal chute from the lower end arcwall face of internal chute greater than the shank diameter in a side of this cylindrical axis, screw thread shank from then on opening enters in the arcwall face of internal chute upper end, the other end of opening purl silk is for being narrower than cylindrical threaded screw rod section 29, the locking screw rolls the cylinder of straight burr for the surface, one side is interior hexagonal, opposite side is a female thread, both sides communicate, and the threaded screw rod section of this female thread and opening purl silk is complementary.
The connection of described opening purl silk and function are achieved in that the barrel portion of opening purl silk, the threaded screw rod part is packed into from the chute of purl slide block one side, the locking screw is packed into and is screwed on the threaded screw rod from the chute of relative opposite side, angle that opening purl silk rotates in chute and the distance that moves are along with after the clinical angle and distance that penetrates the screw needle in the bone is complementary, tighten the locking screw, screw needle just is stabilized on the plane of purl slide block both sides, cooperatively interact with the purl structure that is contained on the oval bar that screws in spring lever, created condition for selecting the best configuration of threading a needle.
Fig. 6 shows the sketch map of adjusting angle and fixing rear spring deformation.
Claims (10)
1, a kind of function type Colles's fracture combined fixator, the purl structure that comprises band T type lock tube, be located at the screw needle in this purl structure, it is characterized in that by the ball-joint spring structure, the ball-joint spring structure is made angle adjustment and the rock-steady structure that the side connects therewith, the radius purl structure that is connected of an end of ball-joint spring structure therewith, the other end of ball-joint spring structure is connected therewith be used to connect second metacarpal bone and metacarpal bone,middle radially the slide block combinative structure or be used to of the fixed form purl structure ball bowl combinative structure that is connected the vertical fixed form purl of second metacarpal bone structure form
Described ball-joint spring structure is sleeved on the spring on this screw-in spring lever by the screw-in spring lever that is connected with described radius purl structure, and screw in the screw-in spring bulb that is connected on this spring and form,
Described slide block combinative structure is by the internal and external threads bulb bowl that is connected with described screw-in spring bulb, and the both sides that are connected of the internal and external threads bulb bowl purl slide block and the ball bowl jackscrew that are provided with chute formed therewith,
Described ball bowl combinative structure is by the outer-hexagonal ball bowl that is connected with described screw-in spring bulb, by ball bowl fastening cap therewith the ball bowl bar that is connected of outer-hexagonal ball bowl form, an end of this ball bowl bar is oval bar,
Described adjustment angle rock-steady structure by about revolve the threaded adjustment screw rod, screw in the left-handed screw of the hemisphere flank of tooth that revolves threaded adjustment screw rod both sides about this, right handed nuts, distinguish the left-handed screw of the hemisphere flank of tooth therewith through soket head cap screw, the hemisphere flank of tooth latch that right handed nuts is connected revolves, revolve the left-handed screw latch of threaded adjustment screw rod both sides about going into, the right handed nuts latch, difference is the left hand thread latch therewith, the left-handed silking nut that the right-handed thread latch is connected, dextrorotation silking nut is formed
What described radius purl structure and second metacarpal bone fixed form purl structure adopted is the purl structure of described band T type lock tube,
Radially fixed form purl structure is by opening purl silk for described second metacarpal bone and metacarpal bone,middle, and the locking screw that is connected of opening purl silk constitutes therewith, and the interior chute of this opening purl silk, locking screw and described purl slide block is slidingly matched.
2, function type Colles's fracture combined fixator according to claim 1, a side that it is characterized in that described screw-in spring bulb is a spheroplast, opposite side is a cylinder, be provided with the spiral type convex-concave arc groove that screws in spring at this cylindrical front end, cylindrically in this convex-concave arc groove rear end radially be provided with orthogonal two manholes, the footpath is provided with two waney circular holes that communicate within it, described screw-in spring lever one end is a cylinder, be provided with the spiral type convex-concave arc groove that screws in spring at this cylindrical front end, cylindrically in this convex-concave arc groove rear end radially be provided with orthogonal two manholes, on this manhole inwall, be provided with two orthogonal round tube holes, the other end of described screw-in spring lever is oval bar, the two ends spring pitch of described screw-in spring is less than the spring pitch of interlude, and this two ends spring section that screws in spring fine pith tight fit respectively is screwed on the spiral type convex-concave arc groove of described screw-in spring bulb one side and screws on the spiral type convex-concave arc groove of spring lever one end.
3, function type Colles's fracture combined fixator according to claim 1, a side that it is characterized in that described internal and external threads bulb bowl is an outer-hexagonal shape, opposite side is a cylinder, on this cylinder, be provided with external screw thread, cylindrical internal diameter is provided with two circular holes that communicate of size, on the internal diameter of this big hole, be provided with one section female thread, the spheroplast of the female thread of this big hole and described internal and external threads bulb makes matched in clearance, be provided with the spherical arc that is complementary with spheroplast on the inner hole surface less than spheroplast's diameter of the outer-hexagonal shape end of described internal and external threads bulb bowl, ball bowl jackscrew is screwed in the described internal and external threads bulb bowl along its female thread.
4, function type Colles's fracture combined fixator according to claim 1, the both ends that it is characterized in that described purl slide block are the arcual cuboid that differs in size, in the big segmental arc of this cuboid, be provided with internal thread hole perpendicular to the perforation of axis, the external screw thread of this internal thread hole and described internal and external threads bulb bowl is complementary, in this cuboid, be provided with three radial grooves that connect mutually, the width and the degree of depth of both sides chute are symmetry equivalent, the width of intermediary chute and the degree of depth are less than the width and the degree of depth of both sides chute, and the end of these three radial grooves that connect mutually is an arc.
5, function type Colles's fracture combined fixator according to claim 1, a side that it is characterized in that described outer-hexagonal ball bowl is an outer-hexagonal, opposite side is cylinder and is provided with external screw thread, internal diameter is provided with two circular holes that communicate of size, great circle aperture and spheroplast's diameter are made matched in clearance, on the inner hole surface of outer-hexagonal end, be provided with spherical arc with spheroplast's coupling less than spheroplast's diameter, the female thread of the external screw thread of described ball bowl jackscrew and described internal and external threads bulb bowl is complementary, the front end of described ball bowl jackscrew is a short cylindrical, in the end of this short cylindrical, be provided with the interior spherical arc that is complementary with spheroplast, in the external screw thread end of described ball bowl jackscrew, be provided with inner hexagonal hole.
6, function type Colles's fracture combined fixator according to claim 1, a side that it is characterized in that described ball bowl bar is a short cylinder, the end face of this short cylinder is provided with the endosphere arcwall face that the spheroplast with described screw-in spring bulb is complementary, the big hole of the external diameter of this short cylinder and described outer-hexagonal ball bowl is made matched in clearance, the opposite side of described ball bowl bar is oval bar, described ball bowl fastening cap is an outer-hexagonal shape, internal diameter is provided with two circular holes that communicate of size, on the inwall of this big hole, be provided with one section female thread, the external screw thread of one side of this female thread and described outer-hexagonal ball bowl is complementary, and the oval bar of the opposite side of this small sircle hole and described ball bowl bar is made matched in clearance.
7, function type Colles's fracture combined fixator according to claim 1, the head that it is characterized in that described hemisphere flank of tooth latch is a hemisphere, the bottom is thin round bar, be provided with two circular holes that communicate of size in the hemispheroidal vertical direction of this latch, the cylindrical section of soket head cap screw and threaded rod section are passed the round tube hole of this hemisphere flank of tooth latch, on the hemispheroidal plane of this latch, be provided with the five equilibrium umbrella shape groove at center, the left-handed screw of the described hemisphere flank of tooth, the head of right handed nuts is a hemisphere, on this hemispheroidal plane, be provided with the five equilibrium umbrella shape groove at center, be complementary at this hemispheroidal vertical screw thread that is provided with female thread and soket head cap screw, hemispheroidal opposite side is a flat-square shaped, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be provided with the levogyrate inner thread or the dextrorotation female thread that connect perpendicular to axis, the five equilibrium umbrella shape groove that this hemispheroidal plane was provided with the center is meshed with the five equilibrium umbrella shape groove of crossing the center of described hemisphere flank of tooth latch, in the arcwall face of this flat-square shaped, be provided with the female thread that radially connects, the female thread of left-hand nut is a left hand thread, the female thread of right-handed thread nut is a right-handed thread, the interlude that revolves the threaded adjustment screw rod about described is an outer-hexagonal shape, hexagonal in addition both sides are round bar, the outer end of this round bar is respectively equipped with left hand thread and right-handed thread, this left hand thread and right-handed thread respectively with the left-handed screw of the described hemisphere flank of tooth, the female thread of right handed nuts is complementary, described left-handed screw latch, one end of right handed nuts latch is a flat-square shaped, the other end is thin round bar, the end face of this flat-square shaped is an arcwall face, in this flat-square shaped, be respectively equipped with the levogyrate inner thread hole and the dextrorotation female thread that connect perpendicular to axis, this female thread and described about revolve threaded adjustment screw rod two ends external screw thread be complementary.The female thread of described left-hand nut, right-handed thread nut also with described about revolve threaded adjustment screw rod two ends external screw thread be complementary.
8, function type Colles's fracture combined fixator according to claim 1, the thin round bar that it is characterized in that described hemisphere flank of tooth latch and left-handed screw latch, right handed nuts latch are slidingly matched with radially also orthogonal two round tube holes that screw in the spring bulb and screw in the cylinder part of spring lever respectively.
9, function type Colles's fracture combined fixator according to claim 1, it is characterized in that the external diameter of locking screw of described purl mechanism and the internal chute of purl slide block both sides are slidingly matched, circular radial through hole on the cylinder of the T type lock tube of described purl mechanism is slidingly matched with the oval bar that screws in spring lever one end and the oval bar of ball bowl bar one end respectively, and the lock tube of described purl mechanism presses the arcwall face of the circular radial arc opening groove on the end face of bottom awl curved portions of bowl to be slidingly matched with the oval bar of screw-in spring lever one end and the oval bar of ball bowl bar one end respectively.
10, function type Colles's fracture combined fixator according to claim 1, an end that it is characterized in that described opening purl silk is the cylinder of arc head, on the intravital axis of this cylinder, be provided with the internal chute of doing to be slidingly matched with the screw thread shank perpendicular to the perforation of axis, the two ends up and down of this internal chute are provided with the arcwall face that the hemicycle cylinder with shank is complementary, begin to open a opening that communicates with internal chute from the lower end arcwall face of internal chute greater than the shank diameter in a side of this cylindrical axis, screw thread shank from then on opening enters in the arcwall face of internal chute upper end, the other end of opening purl silk is for being narrower than cylindrical threaded screw rod section, the locking screw rolls the cylinder of straight burr for the surface, one side is interior hexagonal, opposite side is a female thread, both sides communicate, and the threaded screw rod section of this female thread and opening purl silk is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145176U CN201216637Y (en) | 2008-07-25 | 2008-07-25 | Function type Colles fracture combined fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200145176U CN201216637Y (en) | 2008-07-25 | 2008-07-25 | Function type Colles fracture combined fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201216637Y true CN201216637Y (en) | 2009-04-08 |
Family
ID=40539473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200145176U Expired - Lifetime CN201216637Y (en) | 2008-07-25 | 2008-07-25 | Function type Colles fracture combined fixator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201216637Y (en) |
-
2008
- 2008-07-25 CN CNU2008200145176U patent/CN201216637Y/en not_active Expired - Lifetime
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Effective date of abandoning: 20080725 |
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