CN2274946Y

CN2274946Y - Hook shape pressure internal fixer for olecranal fracture

Info

Publication number: CN2274946Y
Application number: CN 96209494
Authority: CN
Inventors: 张如明
Original assignee: TIANHE HOSPITAL TIANJIN
Current assignee: TIANHE HOSPITAL TIANJIN
Priority date: 1996-05-17
Filing date: 1996-05-17
Publication date: 1998-02-25
Anticipated expiration: 2006-05-17

Abstract

The utility model relates to an inner hook-shaped pressurizing fixing device for the olecranal fracture of ulnas. The longitudinal central part of the middle part of one end of a rectangular concave plate is provided with a gap slot, and a double-fork are formed by the gap slot. An angle of 30 DEG is formed on the middle part of the double-fork, and a hook with a round corner for the double-fork, which has an angle of 150 DEG, is formed on the end of the double-fork. More than two equispaced fixed screw holes are arranged on a central line of the other end of the concave plate to form the inner hook-shaped pressurizing fixing device for the olecranal fracture of ulnas. The utility model has the advantages of simple and convenient operation, stability, reliability and easy control. Patients can do early safe functional training by using the utility model, so the stability of joint and the functional restoration of patients are fast. The utility model is an ideal inner fixing apparatus for treating the olecranal fracture of ulnas.

Description

Olecranal fracture hook-type pressurization inner fixer

This utility model belongs to reduction of the fracture device, particularly a kind of clinical orthopaedics therapeutic treatment olecranal fracture hook-type pressurization internal fixation utensil.

Olecranal fracture is the interior fracture of osteoarthrosis the most common in the clinical orthopaedics medical science, and experts and scholars are to the selection of this fractures method both at home and abroad, and all there are arguement in complication and prognostic evaluation.Main cause be clinical institute to meet olecranal fracture be not simple fracture, simultaneously with displacement and be varied, use a kind of method, a kind of all olecranal fractures of utensil internal fixation obviously are unscientific, and exist the postoperative problem such as bad that heals.Existing clinical normal employing be that " 8 word steel wires climb in fixed " two Kirschner wires or long screw nail pulp cavity internal fixation add steel wire and climb and Mcatee olecranon inner fixer, all exist complication, as, internal fixation is loosening, 90 ° of crooked coupler bodies of the delayed union of bone and Weseley design, cause patient's ancon skin ulcer to infect, and postoperative needs external plaster fixation, causes shortcomings such as ankylosis in various degree.

According to the practical difficulty of above clinical orthopaedics existence, and there is not desirable inner fixer tool problem.The purpose of this utility model is a kind of human body natural's of meeting physiological bending degree of development, meet the body biomechanics characteristics, easy and simple to handle, reliable and stable, possesses rotation displacement problem between anti-fracture separation and fracture face, suitable clinical olecranal fracture typing reaches the early stage joint motion of immediate postoperative safety, need not the olecranal fracture hook-type pressurization inner fixer of external plaster fixation.

This utility model specific embodiment scheme, olecranal fracture hook-type pressurization inner fixer, it is characterized in that adopting medical metal material and medical macromolecular materials to make a rectangle notch plate, at its 1/2 place, one end, the longitudinal center position has a slot, the two forks that form by slot, form 30 ° of angles by 1/2 place and form the fillet hook at 150 ° of angles in the end of two forks at two forks, the top of two forks forms two apex partis petrosaes, on the other end centrage of notch plate, have the fixing screw hole of two above equidistant from distance.Another of olecranal fracture hook-type pressurization inner fixer is characterised in that: the back side of the center fixed screw hole of notch plate is the oblique chute pressurization of ellipse hole.Olecranal fracture hook-type pressurization inner fixer also one be characterised in that: the back sides of two fork fillet hooks of notch plate, be carved with anti-slip stricture of vagina, be convenient to the broken bone of steel wire tractive built-in edge, prevent early ambulant slippage displacement.

Be illustrated again below in conjunction with accompanying drawing:

Fig. 1 olecranal fracture hook-type pressurization inner fixer master looks sketch map.

Fig. 2 olecranal fracture hook-type pressurization inner fixer schematic top plan view.

Fig. 3 olecranal fracture hook-type pressurization inner fixer schematic side view.

Fig. 4 olecranal fracture hook-type pressurization inner fixer is sketch map fixedly.

Embodiment, take different art formulas according to clinical orthopaedics type difference, (refer to cross-section as olecranal fracture, oblique type epiphysis avulsion etc.) adopt median incision, at first remove intraarticular blood coagulation and cartilage or bone fine grained chippings, keep the reduction of the fracture, doing the vertical shape of pulp cavity with Kirschner wire earlier fixes, stable fracture, adopt olecranal fracture hook-type pressurization inner fixer notch plate (1), stick on the ulna lower edge, with the most advanced and sophisticated olecranon teat that embeds of two fork fillet hooks (2), after embedding is firm, in far-end fixing hole (3), inserts screw earlier and fix, in pressurization hole (4) (5), insert screw-driving again, make it to produce automatic plus-pressure between fracture face, withdraw from Kirschner wire gradually, broken on every side bone can adopt the steel wire tractive, be fixed on anti-slip stricture of vagina (6) position, reach the internal fixation effect.Postoperative is with triangular bandage suspension and begin to strengthen gradually the elbow joint stretching exercise, Most patients, postoperative three all elbow joinies are stretched the amplitude of bending can reach 80-100 °, confirm through biological mechanics determining, olecranal fracture hook-type pressurization inner fixer, olecranal fracture section two ends are formed the three-dimensional mechanical fixed area of the del of an integral body, not only has the isolating pressurization bed knife of anti-fracture, have coaxial rotation displacement between anti-fracture face simultaneously and keep the level and smooth ability of articular surface, so postoperative can begin to strengthen joint motion and functional exercise gradually, reach the reparation of promotion hyaline cartilage, knitting prevents joint accretion again.

Olecranal fracture hook-type pressurization inner fixer is convenient to operation, and is reliable and stable, is easy to grasp, and patient's security function in early days takes exercise, and stability of joint and functional restoration are very fast, is the desirable internal fixation utensil of treatment olecranal fracture.

Claims

1, a kind of olecranal fracture hook-type pressurization inner fixer, it is characterized in that: a rectangular notch plate, at its 1/2 place, one end, the longitudinal center position has a slot, by two forks that slot forms, form 30 ° of angles at 1/2 place of two forks and form the fillet hook at 150 ° of angles in the end of two forks, the top of two forks forms two apex partis petrosaes, on the other end centrage of notch plate, have the fixing screw hole of two above equidistant from distance.

2, olecranal fracture hook-type pressurization inner fixer according to claim 1 is characterized in that: the back side of the center fixed screw hole of notch plate is the oblique chute pressurization of ellipse hole.

3, olecranal fracture hook-type pressurization inner fixer according to claim 1 and 2 is characterized in that: can adopt metal material or medical macromolecular materials to make.