CN2168559Y

CN2168559Y - External fixer

Info

Publication number: CN2168559Y
Application number: CN 93233896
Authority: CN
Inventors: 宋西正
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-05-10
Filing date: 1993-05-10
Publication date: 1994-06-15
Anticipated expiration: 2003-05-10

Abstract

The utility model relates to an external fixation medical device for limb fracture reduction, which is composed of two parts of a retractor and a squirrel-cage type fixation frame, wherein, main components comprise a steel rings with a thread hole, an adjustment needle, a wooden small splint, a telescopic adjustment rod, a draft arm seat, etc. The utility model generates longitudinal traction to limb fracture and resets, pressurizes and corrects the fracture end to rotate by the retractor and the fixation frame, the machine resets, pressurizes. The fixer can fix in multiple directions after superposed and the folding ends sufficiently inosculate. Compared with the present external fixers, the utility model has the advantage of strong acting force and stability, and the utility model not only has extrusion force of the small splint to skin but also has butting pressure for regulating bone.

Description

External fixer

This utility model relates to a kind of medical apparatus and instruments of extremity fracture reduction external fixation.

The reduction external fixator is to arrive reliable reduction, fixing, healing in order in time to be gone in the fracture back, recovers the function of quadruped locomotion as early as possible.The domestic and international at present holder that uses, generally belong to external rigid fixation means, complex structure, volume is bigger, has both hindered patient's functional exercise, brings cumbersome wrapping, dressing, use, dismounting inconvenience to the medical personnel again, even the advanced external fixator that present stage uses, also have following point: 1. play the fixation with one side, be easy to generate the swing offset of fracture end, it is poor to stablize adjustable; 2. locate, bring extra sclerotin injury owing to adopting spicule to wear bone to the patient, and marrow infection, patient's early recovery (see fracture external fixator, People's Republic of China's patent is 90213092.7) influenced.

This utility model overcomes above shortcoming: it is made up of " squirrel-cage " fixed mount and traction apparatus two parts, wherein traction apparatus is an accessory, its major part has screw steel (3) to transfer, markingoff pin (4), wooden plintlet (2), telescopic adjustment bar (7), the Screw of traction arm seat (6) and some connecting cleats and steel ring, it is characterized in that plintlet and screwed hole steel ring screw attachment, secured adjusted pin on the plintlet, metering needle penetrates skin and withstands bone, traction apparatus and plintlet screw attachment, the traction arm seat is sphere certain motility that is twisted together, an end has screw thread on the traction apparatus, and end has movable sleeve that the generation of fracture face is vertically moved and rotates in addition.The plintlet that has the fixable quantity of equidistant screwed hole to differ on the screwed hole steel ring.Adopt metering needle from the multi-direction bone that holds out against, clip squeezes splenial bone folding surrounding tissue with suitable power, and existing metering needle has the crowded folder power of plintlet to skin again to the roof pressure power of bone, has strengthened stability widely.The drawing of traction apparatus can make the separation of fracture end face carry out coincideing accurately and effectively, and fixing from resetting, and the patient can carry out effective functional exercise, can shorten healing time greatly.Because plintlet material manufacturing is convenient to the X-ray film making and is checked, correcting residual displacement at any time during treating.

Now chat as follows in detail to this utility model in conjunction with the accompanying drawings:

Fig. 1 is " squirrel-cage " top folder external fixator topology view.

Fig. 2 is wooden plintlet view.

Fig. 3 is a screwed hole steel ring view.

Fig. 4 metering needle view.

Fig. 5 is the traction apparatus view.

Structure using method of the present utility model: 1. in the aseptic sterilization of fracture, put two suitable porous steel rings (3) under local anaesthesia or brachial plexus block anesthesia, prick metering needle (4) (metering needle position is as required avoided nervus vasculairs and carried out) under aseptic; 2. twine about 3 to the 4 layers of degree of tightness appropriateness of aseptic binder, go up boring at plintlet (2), be enclosed within the metering needle end of thread respectively and be installed in respectively on two steel rings with symmetric position then according to the position of metering needle; 3. regulate the nearly metering needle of fracture and make the center of the position of bone in " squirrel-cage " clamping plate, assistant or traction apparatus traction far-end fracture are regulated clamping plate far-end metering needle and are made lateral displacement; Angulation displacement, the main displacement of rotation is eliminated: the film making of 4.X line is observed reset case and is transferred the displacement of metering needle correcting residual again, the secured adjusted pin loosening fracture redisplacement that prevents to spin.Postoperative is subsided a swelling about one week and is afterwards taken exercise from bed; 5. traction apparatus (5) is how accessory draws unable with Fracture of femur assistant when resetting or can use to help metering needle to make fracture reach reduction with good when not having extension table.

Embodiment:

Screw steel ring (3) is made with common iron, and the hole is that equidistant screwed hole diameter is 4.5 to 5MM, and the steel ring diameter is according to the size design series specification of limbs.Traction apparatus (5) is made with common iron.Metering needle (4) is made with the orthopaedics rustless steel.Plintlet is made with flexible, elasticity, wooden harder material.

Claims

1, a kind of " squirrel-cage " top folder external fixator is made up of " squirrel-cage " fixed mount and traction apparatus two parts, wherein traction apparatus is an accessory, its major part has screw steel ring (3), metering needle (4), wooden plintlet (2), telescopic adjustment bar (7), traction arm seat (6), and some connect the Screw of plintlet and steel ring, it is characterized in that plintlet and screwed hole steel ring screw attachment, secured adjusted pin on the plintlet, metering needle penetrates skin and withstands bone, traction apparatus and plintlet screw attachment, traction is that spherical hinge is associated with certain motility on the arm seat, on the traction apparatus end have screw thread in addition end have movable sleeve that fracture is produced to vertically move and rotate.

2,, but it is characterized in that the plintlet that has equidistant screwed hole fixed qty to differ on the screwed hole steel ring according to right 1 described " squirrel-cage " top folder external fixator.