CN2576188Y - Double screwthread pressure-needle column-corner type fixing support for bone fracture of femur neck and intertrochanteric - Google Patents

Abstract

The utility model discloses a column corner type external fixing supporting frame with a double thread pressurized needle for femur neck fracture and intertrochanteric fracture. The utility model is composed of a double thread pressurized needle, a single thread fixing needle, a left semicircular external fixing frame, and a right semicircular external fixing frame, wherein, after involution, the two semicircular external fixing frame present a cylindrical corner shape; the double thread pressurized needle is provided with a conical needle tip, a coarse thread section, an unthreaded section and a fine thread section, and the tail of a needle bar is in a semicircular shape; the single thread fixing needle is provided with a needle tip and a thread, and the tail of a needle bar is in a semicircular shape; a plurality of diagonal semicircular slots of different angles and compacted fixing screw holes are arranged in the external fixing frame. The utility model has the advantages of no operation, less wound, less hemorrhage, and no pain. Due to the actions of coarse threads and fine threads, and fracture gaps are reduced; internal fixation is firm, stable and safe; the external fixing frames have no needle ends, and a patient can carry out functional exercises with normal dressing; since when the needle tip of the pressurized needle enters a hole, the hole can be automatically opened, thereby, the damages to sclerotin, muscles and blood transportation are reduced, and the healing of the fracture is accelerated.

Description

The two screw thread Needle with pressure-increasing means post angles of neck of femur and intertrochanteric fracture type exterior fixation bracket

Affiliated technical field

This utility model relates to a kind of neck of femur and the two screw thread Needle with pressure-increasing means post angles of intertrochanteric fracture type exterior fixation bracket, belongs to the medical apparatus and instruments of treatment fracture.

Background technology

At present, neck of femur and intertrochanteric fracture are old people's frequently-occurring diseases, adopt traction and external plaster fixation, make the essential long-term bed of patient, and be painful big, nurses very inconveniently, and complication is many; Operative treatment adopts gooseneck nail and " " nail internal fixation more, needs long incision, peels off cut-out muscle on bone, and wound is big, and is hemorrhage many, and the risk height needs the gooseneck nail of second operation taking-up on the folding bone; Common exterior fixation bracket and percutaneous pinning bone cement expopexy, this type of technology adopts steinman pin more, but should be poor at the fracture end restraining forces, effective stable fracture position, because the pin position disperses, and is far away apart from fracture end, significantly limit the motion of machine meat, patient's autonomic activities amount is reduced, joint motion spoke degree is little, can cause ankylosis, and backshank is outside support, activity dressing inconvenience only is useful for certain type intertrochanteric fracture.

Summary of the invention

In order to overcome above-mentioned deficiency, this utility model provides a kind of neck of femur and the two screw thread Needle with pressure-increasing means post angles of intertrochanteric fracture type exterior fixation bracket, and is simple in structure, easy to use, do not need operation, it is little to have wound, the folding end is stable, fixation, no pain, not hemorrhage, to the muscle not damaged, but the early function exercise promotes union of fracture, effectively reduce complication, and do not influence dressing.

The technical scheme that its technical problem that solves this utility model adopts is: it is by two screw thread Needle with pressure-increasing means; The single thread locking pin; Left and right pair of semicylinder external fixer formed, and is the cylinder dihedral after external fixer is involutory.The top of two screw thread Needle with pressure-increasing means is provided with the taper needle point, front end is provided with coarse-pitch thread, the stage casing is that circular shank does not have screw thread, back segment is provided with fine thread, and the shank tail end is the semicircular body needle body, so that the corresponding cooperation of oblique half slot on clip and the external fixer is pressed fixing during inserting needle; The single thread locking pin is provided with needle point on the top of pin, uses during for inserting needle, is provided with single thread at the rear portion of needle point, and tail end is the semicircular body shank, presses fixingly for cooperating in the oblique half slot on clip inserting needle and the external fixer, makes two screw needles stable; Cylindrical exterior fixation bracket is divided into left and right two semicylinder external fixers, on the inner side plane of semicylinder external fixer, be provided with a plurality of oblique half slot of different angles, on two semicylinder external fixers, be provided with 4 corresponding vertical threaded bore, press its shank afterbody fixing with pressing fixed screw, after making two semicircular body external fixers involutory, form cylinder angle type exterior fixation bracket.

The beneficial effects of the utility model are: scientific and reasonable for structure, easy to usely need not operate on operation, only need local anaesthesia to get final product, wound is little, hemorrhage few, basic no pain is because effect thick, fine thread, fracture gap is dwindled, internal fixation is firm, and plus-pressure is strong, and the folding end is stable, external fixation is firmly safe and reliable, external fixer does not have backshank outward, and normally functional exercise is carried out in dressing, anterior pointed circular cone hole-opening voluntarily when entering owing to the pressurization needle point, reduced infringement, accelerating union of bone fracture to sclerotin, muscle and blood fortune.

Description of drawings

Below in conjunction with drawings and Examples this utility model is further specified.

Fig. 1 is this utility model user mode sketch map

Fig. 2 is left and right semicircular body external fixer structural representation

Fig. 3 is two screw thread Needle with pressure-increasing means sketch maps

Fig. 4 is a single thread locking pin sketch map

Number in the figure:

1, two screw thread Needle with pressure-increasing means 2, needle point 3, coarse-pitch thread

4, fine thread 5, semicircular body shank 6, circular shank

7, single thread locking pin 8, the external fixed mount 9 of left semicircle, the external fixed mount of right semi-circle

10, cylinder angle type exterior fixation bracket 11, oblique half slot

12, external fixer screw 13, press fixed screw

The specific embodiment

Shown in Fig. 1 to 4, two screw thread Needle with pressure-increasing means (1), be provided with cone tip (2) on the top of this pin, hole during alternative inserting needle, be provided with coarse-pitch thread (3) at the rear portion of needle point, the stage casing of pin is that circular shank does not have screw thread, back segment is provided with fine thread (4), because effect thick, fine thread is dwindled the fracture gap pressurization, the afterbody of pin is a semicircular body shank (5) (seeing Fig. 3 for details), and the interior cooperation of clip and the oblique half slot of external fixer (11) is pressed fixing during for inserting needle; Single thread locking pin (7), be provided with needle point (2) on the top of pin, use during for inserting needle, be provided with single thread (seeing Fig. 4 for details) at the rear portion of needle point, tail end is semicircular body shank (5), it is fixing to supply interior oblique half slot (11) cooperation of clip inserting needle and external fixer to press, and makes two screw thread Needle with pressure-increasing means more stable; Cylinder angle type fixed support (10) is divided into left and right two semicylinder external fixers (8), (9), on the inner side plane of the external fixed mount of left half cylinder (8), be provided with a plurality of oblique half slot (11) of different angles, on two left and right semicylinder external fixers (8), (9), be provided with 4 corresponding vertical external fixer screws (12), tighten with stationary pinch screw (13), press its semicircular body shank (5) fixing, after two semicircular body external fixers are involutory, form cylinder angle type exterior fixation bracket (10).Owing to adopt the fixing back of screw needle to form a plurality of 4 fixed quadrilateral structures, make fixation reliable, press fixing after, will be exposed at the outer backshank of cylinder fixed mount again and cut off, can the dressing activity.

Claims (1)

1, the two screw thread Needle with pressure-increasing means post angles of a kind of neck of femur and intertrochanteric fracture type exterior fixation bracket, form by two screw thread Needle with pressure-increasing means, single thread locking pin, left and right semicylinder external fixer, the involutory back of external fixer is cylindrical, it is characterized in that: two screw thread Needle with pressure-increasing means (1) are provided with needle point (2), coarse-pitch thread (3), circular shank (6), fine thread (4), semicircular body shank (5); Single thread locking pin (7) is provided with needle point (2), screw thread (3) and semicircular body shank (5); Cylinder angle type exterior fixation bracket (10) is made up of external fixed mount of left semicircle (8) and the external fixed mount of right semi-circle (9), on the inner side plane of the external fixed mount of left semicircle (8), be provided with oblique half slot (11), on external fixer, be provided with external fixer screw (12), press fixed screw (13).

Images