CN202526287U

CN202526287U - Fixer for supracondylar fracture of femur

Info

Publication number: CN202526287U
Application number: CN201220018725XU
Authority: CN
Inventors: 周敏; 隋淑彦; 牟秀华
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-07
Filing date: 2012-01-07
Publication date: 2012-11-14
Anticipated expiration: 2022-01-07

Abstract

The utility model discloses a fixer for the supracondylar fracture of a femur. The fixer mainly comprises a main body, locking nail holes, tension screw holes, encircling arms and the like, and is characterized in that the far end of the main body is matched with the lateral condyle of the femur, and 1 to 2 tension screw holes and 6 locking screw holes are involved; the directions of the screw holes are parallel to the transverse axis of the femoral condyle, and tension screws and locking nails can be screwed into the screw holes; the near side of the far end of the main body is matched with the femur supracondyle; 3 to 8 pairs of encircling arms are arranged on two sides of the near end of the main body; the encircling arms are gradually shortened from far to near and matched with the circumferential diameter of the femur; sawtooth-shaped objects are formed on the encircling arms at the far end and the near end and protrude towards the sunken side; the main body corresponds to a femur steel plate in the aspects of width and thickness and is about 5 mm thick; the near end is about 2 cm wide, and the far end is about 2.5 to 3 cm wide; the fixture is made of a titanium nickel alloy with a temperature memorization function; and the fixture is high in histocompatibility. The fixture is suitable for patients who have steel plates or intramedullary nails for facture at the middle section or the lower 1/3 section of the original femoral shaft, suffer from the supracondylar fracture of the femur and cannot take out the original implanted objects.

Description

A kind of supracondylar fracture of the femur holder

Technical field

This utility model relates to a kind of field of medical appliances, is a kind of supracondylar fracture of the femur holder

Background technology

Complication such as supracondylar fracture of femur all used gusset in the past or DCS fixes, but occurs taking off nail easily for osteoporotic patient, and implants is loosening.Especially in the middle of the original femoral or lower 1/3 of the fracture has been in steel plate or intramedullary nail fixation, the current due to trauma or other reasons, they appear on the femoral condyle fracture or femoral condyle, but the original implant since the time of implantation too long can not be removed, and in the fractures formed near the mass effect, the application can not currently available within the plant internal fixation; or can not be used in patients with severe osteoporosis plate and screw fixation.Thereby need a kind of novel implants that can address the above problem to fix this supracondylar fracture of femur.

The utility model content

This utility model provides a kind of DF girdle device, adopts the Ti-Ni alloy with temperature memory function on the material.

The technical scheme that this utility model provided is, a kind of DF holder, and by main body, locking nail hole, lag screw hole, plain screw hole and encircle compositions such as arm.It is characterized in that: body distal end partly is anatomic form; Be complementary with condylus lateralis femoris, divide left and right sides according to left and right sides condyle of femur, left and right sides is opposite; It contains 1～2 lag screw hole and 6 screw hole, and above-mentioned screw hole direction all parallels with femur medial and lateral condyle axis of pitch; The body distal end proximal portion also is anatomic form, is complementary with supracondylar part of femur; The nearly section of main body both sides are connected with 3～8 pairs and encircle arm, encircle arm lengths and are shortened gradually to near-end by far-end, and its far-end and condyle of femur directly were complementary last week, and near-end and femoral shaft Zhou Jing are complementary, and far away, near-end is encircled has protruding the reinforcing to recessed side of crenellation to fix on the arm.Main body is equivalent to femoral far section outside steel plate on width, thickness, the about 5mm of thickness, and the about 2cm of nearly section width, the about 2.5～3cm of distal end width plays the connection supporting role.

During use, select sizeable this utility model, particularly will distinguish left and right sides according to left and right sides supracondylar fracture of the femur situation.First, reset the fracture, and then use the ice saline implants after soaking spacer arm stretched all surrounded by first body distal lateral femoral condyle placed, respectively, each embracing arm snaps into the proximal femur ago , rear, the lateral wall of the main card to the femur or the original interior plants, adjusted to paste clothes, to be surrounded by the various arms and trunk and femur paste clothes well, the first bone screw stake condyles two lag screws, then? later under need to be screwed into the nail 3 to 6, and then use the hot salt water (40 ° ~ 50 °) covered with the utility model, so that all embracing arm crunch, so that the utility model and femur close, firmly fixed.Lag screw and pinning resected femur condyle portion sclerite, each encircles fixedly fractured near end piece of arm, and main body plays the support and connection effect.

Technique effect

The technique effect of this utility model is on the basis that need not take out former femoral shaft implants, supracondylar fracture of the femur to be accomplished internal fixation.Shorten operating time so greatly, reduce operation risk, for operation safety provides safeguard, for patient has alleviated misery.

Description of drawings

Fig. 1 is the structural front view of this utility model (right side femur), and Fig. 2 is a left view.

In the drawings, 1. screw hole 2. body distal end 3. lag screw holes 4. body distal end proximal portion, 5. far-ends are encircled arm 6. near-ends and are encircled arm 7. main bodys

The specific embodiment

Below in conjunction with accompanying drawing and case study on implementation, this utility model is further specified.

As shown in the figure, this utility model is by main body 7, body distal end 2, and screw hole 1, lag screw hole 3, main body condyle top 4 and far-end are encircled arm 5, near-end is encircled compositions such as arm 6.Body distal end 2 and main body condyle top 4 are anatomic form, are complementary with condylus lateralis femoris and condyle top respectively, and lock hole is 6, in screw thread is arranged, the lag screw hole is 1～2; Encircling arm is 3～8 pairs, and it is tapered to draw near, and distal-most end and most proximal end are encircled has crenellation protruding in recessed side on the arm; Main body 7 is connected body distal end 2 and respectively encircles between the arm the about 5mm of trunk thickness, the about 2cm of width.

During use, select sizeable this utility model, particularly will distinguish left and right sides according to left and right sides supracondylar fracture of the femur situation.First, reset the fracture, and then use the ice saline implants after soaking distraction distraction device as a remote embracing each

arm encircling arm

5, 6, etc. proximal arm embracing, first place the body distal lateral femoral condyle 2 department, respectively, each embracing arm snaps into the proximal femur before, behind, the main seven cards to the femur within the outer wall or the original plants to paste clothes, to be surrounded by the various arms and trunk and femur paste clothes well, the first Tighten the lag screw through the hole 3 shares condyle bone lag screw 1 to 2, and then as necessary by locking screws screwed into the hole a nail 3 to 6, and then use the hot salt water (40 ° ~ 50 °) covered with the utility new, so that all embracing arm crunch, so that the utility model and femur close, firmly fixed.Lag screw and pinning resected femur condyle portion sclerite, each encircles fixedly fractured near end piece of arm, and main body plays the support and connection effect.

Claims

1. supracondylar fracture of the femur holder, by main body, locking nail hole, lag screw hole and encircle compositions such as arm; It is characterized in that: body distal end partly is anatomic form, is complementary with condylus lateralis femoris, divides left and right sides according to left and right sides condyle of femur; Left and right sides is opposite, and it contains 1～2 lag screw hole and 6 screw hole, and above-mentioned screw hole direction all parallels with femur medial and lateral condyle axis of pitch; The body distal end proximal portion also is anatomic form, is complementary with supracondylar part of femur, and the nearly section of main body both sides are connected with 3～8 pairs and encircle arm; Encircle arm lengths and shortened gradually to near-end by far-end, its far-end and condyle of femur directly were complementary last week, and near-end and femoral shaft Zhou Jing are complementary; Far, near-end is encircled has on the arm that crenellation is protruding to be reinforced fixingly to recessed side, main body is equivalent to femoral far section outside steel plate, the about 5mm of thickness on width, thickness; The about 2cm of nearly section width, the about 2.5～3cm of distal end width plays connection, supporting role.