CN2857864Y

CN2857864Y - Dynamic coax/condylus three-dimensional angle guide

Info

Publication number: CN2857864Y
Application number: CN 200520140007
Authority: CN
Inventors: 戴维享
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-19
Filing date: 2005-12-19
Publication date: 2007-01-17
Anticipated expiration: 2015-12-19

Abstract

A 3D angle directing equipment used in orthopaedic DHS/DCS posing operations includes a fan-shaped fixation board with scales from 90 degree to 180 degree, a directing duct disposed in the same plane with the directing board and rotating around the fan-shaped axis of the fixation board, a frontal plane adjusting column disposed perpendicularly to the fixation board, an arcuate frontal plane angle adjusting rod disposed perpendicularly to the frontal plane adjusting column. The disclosed device can ensure the operation effect.

Description

Dynamic coxa/condyle three-dimensional perspective guider

Technical field

This utility model relates to a kind of medical apparatus and instruments, relates in particular to the bone surgery locating apparatus.

Background technology

At present in dynamic hip screw (DHS)/power condyle plate (DCS) implantation surgery operating process, DHS/DCS angle guideline commonly used is planar guide, it is two-dimensional guide, do not reach the function of three-dimensional guiding, the position of frontal plane guiding can only be leaned on patient's range estimation in addition, because the error of range estimation is big, often causes surgical effect undesirable.

Summary of the invention

The purpose of this utility model is the localizer that a kind of three-dimensional perspective guiding is provided for the operation of DHS/DCS implantation surgery, be achieved in that a kind of dynamic coxa/condyle three-dimensional perspective guider, it is characterized in that it comprises the fixing head of forming by with graduated fanning strip and rectangular slab, be installed in the fixing head circular hole and the barrel nut that can rotate around the hole, the guide pipe that is connected with nut is clamped in the face amount adjustable column between guide pipe and the fixing head fanning strip side face and is inserted in the face amount adjustable column square hole and can goes here and there the frontal plane angle control stick that moves; The top of fixing head is the symmetric two right angle fanning strips that are parallel to each other, two middle gaps that have of fanning strip equate with the body diameter in guide pipe stage casing, wherein a slice fanning strip outside makes the graduated disc and the graduation mark of 90-180 degree, the fanning strip cambered surface is radially made with the corresponding triangle of graduation mark and is colluded groove, and two fanning strip bottoms link to each other with rectangular slab; The rectangular slab left surface is made the cancave cambered surface similar to the human femur under loading periphery, and lateral symmetry is fixed four conical locating detents on the cambered surface, rectangular slab center making rectangular through holes, and screw passes through hole rectangular slab is fixed on the femur face of cylinder during use; Guide pipe center system band manhole, annular knurl on the great circle side face of one end, the stage casing body diameter is installed in the circular hole of square column face amount adjustable column one end, the screw of the other end is screwed in the screw thread of nut, face amount adjustable column and sector are vertically fixed on the fixing head, the triangle that the triangle raised ribs of face amount adjustable column one side is stuck on the fanning strip colludes in the groove, adjusts fixed angle as required; Square post one end of volume shape angle control stick is inserted in the square hole of end face adjustable column and can moves radially, and the top of the curved circular cone of the other end is adjusted to the human femur under loading neck and contacts; Guide pin passes the insertion operative site in the hole of guide pipe.

Good effect of the present utility model is, in the operating process of DHS/DCS implantation surgery, the exterior arc surface of localizer bottom location-plate is adjacent to femur, spacing and fix with four locating detents with screw and femur, the plane positioning that location-plate and guide pipe form is reliable and stable, the perpendicular frontal plane angle control stick in the plane that forms with location-plate and guide pipe effectively controls guide post and location-plate is formed three-dimensional coordinate jointly, make the guiding position of guide pipe accurate, DHS/DCS inserts also just accurately, guarantees the effect of performing the operation.

Description of drawings

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.

Fig. 1 is that the DHS of this utility model dynamic coxa/condyle three-dimensional perspective guider inserts structural representation;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the A-A profile of Fig. 1;

Fig. 5 inserts structural representation for the DCS of this utility model dynamic coxa condyle three-dimensional perspective guider.

Among the figure: 1, fixing head, 2, locating detent, 3, guide pipe, 4, guide pin, 5, frontal plane angle control stick, 6, nut, 7, face amount adjustable column, 8, screw, 9, femur, 10, rectangular slab, 11, fanning strip, 12, graduated disc, 13, graduation mark, 14, triangle colludes groove, 15, oblong aperture, 16, neck of femur, 17, condyle of femur.

The specific embodiment

1, DHS inserts

Be shown in 5.5cm place under the guide pin entry point of femoral bone tuberosity below as Fig. 1,2,3,4, give the sclerotin boring of the femur upper segment outside with the drill bit of diameter 3.2mm and reach pulp cavity, earlier the guide pipe 3 of guider is adjusted and be locked in needed angle position, again the tip of the coronalplane angle control unit part of localizer is butted on the front portion of neck of femur 16, the rectangular slab of guider vertically places the outside under the femoral bone tuberosity, with hold-down screw 8 fixing head 1 is fixed on the femur 9 epimeres outside, make the rectangular slab 10 of localizer closely be attached on the sclerotin, at last, squeeze into guide pin 4 along guide pipe 3.

2, DCS inserts

As Fig. 2,3,4,5 4.5cm place above definite guide pin cardinal principle entry point, give with the drill bit of diameter 3.2mm that outside sclerotin boring reaches pulp cavity on the condyle of femur, earlier the guide pipe 3 of guider is adjusted and be locked in needed angle position, again the tip of the coronalplane angle control unit part of localizer is butted on the middle part of condyle of femur anterior articular facet, the rectangular slab 10 of guider vertically places condyle of femur 17 outsides, with hold-down screw 8 fixing head is fixed on condyle of femur 17 outsides, the tight card of fixing head of localizer is attached on the sclerotin, at last, squeeze into guide pin 4 along guide pipe 3.

Claims

1, a kind of dynamic coxa/condyle three-dimensional perspective guider, it is characterized in that it comprises the fixing head of forming by with graduated fanning strip (11) and rectangular slab (10) (1), be installed in fixing head (1) circular hole and the barrel nut (6) that can rotate around the hole, the guide pipe (3) that is connected with nut (6) is clamped in the face amount adjustable column (7) between guide pipe (3) and fixing head (1) the fanning strip side face and is inserted in face amount adjustable column (7) square hole and slidable frontal plane angle control stick (5); The top of fixing head (1) is the symmetric two right angle fanning strips (11) that are parallel to each other, the gap that has in the middle of two fanning strips (11) equates with the body diameter in guide pipe (3) stage casing, wherein a slice fanning strip (11) outside makes the graduated disc (12) and the graduation mark (13) of 90-180 degree, the fanning strip cambered surface is radially made with the corresponding triangle of graduation mark (13) and is colluded groove (14), and two fanning strips (11) bottom links to each other with rectangular slab (10); Rectangular slab (10) left surface is made the cancave cambered surface similar to the human femur under loading periphery, lateral symmetry is fixed four conical locating detents (2) on the cambered surface, rectangular slab (10) center makes rectangular through holes (15), and screw during use (8) passes through hole (15) rectangular slab (10) is fixed on femur (9) face of cylinder; Guide pipe (3) center system band manhole, annular knurl on the great circle side face of one end, the stage casing body diameter is installed in the circular hole of square column face amount adjustable column (7) one ends, the screw of the other end is screwed in the screw thread of nut (6), face amount adjustable column (7) and sector (11) are vertically fixed on the fixing head (1), the triangle that the triangle raised ribs of face amount adjustable column (7) one sides is stuck on the fanning strip (11) colludes in the groove (14), adjusts fixed angle as required; Square post one end of volume shape angle control stick (5) is inserted in the square hole of end face adjustable column (7) and can moves radially, and the top of the curved circular cone of the other end is adjusted to human femur under loading neck (16) and contacts; Guide pin (4) passes the insertion operative site in the hole of guide pipe (3).

2, according to the described dynamic coxa of claim 1/condyle three-dimensional perspective guider, its fixing head (1), locating detent (2) guide pipe (3), frontal plane angle control stick (5), nut (6), face amount adjustable column (7), screw (8) are stainless steel material and make.