CN2482972Y

CN2482972Y - Internal fixation special-shaped steel plate for fracture such as back wall of acetabulum or other part

Info

Publication number: CN2482972Y
Application number: CN 01228892
Authority: CN
Inventors: 尹绍猛; 刘建丰
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-09
Filing date: 2001-07-09
Publication date: 2002-03-27
Anticipated expiration: 2011-07-09

Abstract

The utility model discloses a fixation allotype steel plate in the acetabular posterior wall and the back styopodium folded part with an X shape for the whole body. The body part is a shield shape with the four sides in an arc notch, and the four angles of the body part respectively is provided with an arm with two arms for long arm and two from short arm; The root part of the short arm is provided with the symmetrical arc shape notch; The root part of the long arm and the two sides of the arms are provided with the symmetrical arc shape notch; the shield shape body part and the four arms are fixed with a nail hole. The utility model has advantages of reliable fixation effect, simple operation with strong capacitance, and can be nimbly used for the abnormal type steel plate fixed at the acetabular posterior wall and the back styopodium folded part.

Description

Acetabular bone rear wall, rear pillar fracture internal fixation heterotype steel plate

This utility model relates to a kind of heterotype steel plate that is used for acetabular bone rear wall, rear pillar fracture internal fixation.

Fracture of acetabulum is recurrent Orthopeadic Surgery disease, and the fracture of acetabular bone rear wall, rear pillar need be fixed with some implants when operation, to help the connection growth of skeleton.At present, the implants of using clinically both at home and abroad mainly contains following several:

1, screw.Screw is mainly used in the fixing of acetabular bone posterior wall fractures piece, and it requires high for sclerotin, and can not be used for comminuted fracture.

2, reconstruction plate.Curved or the bar shaped of reconstruction plate can be moulding, can be used for the fixing of acetabular bone rear wall, rear pillar, and its pardon is poor, operating difficulties, and the monolithic block application constant intensity is not enough, often needs the polylith use in conjunction just can reach constant intensity.

3, Kirschner wire, steinman pin.Its fixed effect is poor, and is unreliable, big as the probability of implants damage internal organs.

It is reliable that the purpose of this utility model provides a kind of fixed effect, simple to operate, and pardon is strong, and utilization is applicable to the heterotype steel plate of acetabular bone rear wall, rear pillar fracture internal fixation flexibly.

For achieving the above object, this utility model is taked following design: a kind of acetabular bone rear wall, rear pillar fracture internal fixation heterotype steel plate, and it is characterized in that: its integral body is " X " shape; Its body is the peltate that four limits are the circular arc incisura, and body stretches out an arm respectively for four jiaos, and wherein two is long-armed, and two is galianconism; There is symmetric circular arc incisura on described galianconism root both sides; Both sides also have symmetric circular arc incisura on described long-armed root and the arm; On described peltate body and four arms the staple hole is arranged.

The long 40-50 millimeter in the shortest position of described peltate body, the narrowest position width 26-34 millimeter, the arc radius of two circular arc incisuras along its length is the 42-60 millimeter, and every block plate about the arc radius of two circular arc incisuras differ 2 millimeters, 6 circular staple holes are arranged on the described peltate body; The long 20-25 millimeter of described galianconism, wide 10-15 millimeter, wherein separated time intersects and is 38-42 degree angle in separated time and the body, and there is a circular staple hole in galianconism central authorities; Described long-armed long 40-50 millimeter, wide 10-15 millimeter, wherein separated time intersects and is 28-33 degree angle, 3 circular staple holes of uniform distribution along its length in separated time and the body; Described nail bore dia is the 4-6 millimeter.

Described steel plate thickness can be the 2-3 millimeter.

This utility model is owing to adopt above-mentioned design, make it in use, can be steel plate is whole or cut apart use according to the position of the type of patient fracture, fracture line, but cutting apart of the circular arc incisura convenient steel plate of long and short arm, its indication has acetabular bone posterior wall fractures, rear pillar fracture, acetabular bone transverse fracture, rear wall to merge rear pillar fracture, two property fracture etc., it can be suitable for various sclerotin, has pardon comparatively widely, its rational project organization, make that its fixed effect is reliable, simple to operate, utilization flexibly.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model

Fig. 2 is this utility model A-A cutaway view

As shown in Figure 1, 2, this utility model acetabular bone rear wall, rear pillar fracture internal fixation heterotype steel plate 1, its integral body is " X " shape; Its body 2 is the peltate that four limits are circular arc, and body stretches out an arm respectively for 2 four jiaos, wherein two be long-armed 3, two for galianconism 4; There is symmetric circular arc incisura 5 on described galianconism 4 root both sides; Both sides also have symmetric circular arc incisura 6 on described long-armed root and the arm; On described peltate body 2 and four

arms

3,4 circular staple hole 7 is arranged.

This utility model one cover product can be five, and its structure is identical, is the size difference at each position, its concrete size such as following table:

Model	1	2	3	4	5
Model	1	2	3	4	5	B	26	28	30	32	34
L	16	18	20	22	24	B	26	28	30	32	34
L	16	18	20	22	24	R ₁	42	46	50	54	58
R ₂	55	59	63	67	71	R ₁	42	46	50	54	58
R ₂	55	59	63	67	71	R ₃	44	48	52	56	60
R ₄	57	61	65	69	73	R ₃	44	48	52	56	60

This cover steel plate is enough to satisfy Aisan's use of different heights.Described steel plate thickness is the 2-3 millimeter.

When this utility model uses, need be furnished with specific purpose tool (as bending drill bit, universal screwdriver, steel plate lever, special-purpose drag hook etc.), with the plumbous matter template and the supporting screw of steel plate same structure, identical size.Detailed directions is to select the most close template for use according to the concentric circular of the fixed acetabular bone trailing edge of need, the acetabular bone rear pillar place plasticity after resetting, its body is attached at bone surface, and body one arc incisura is mutually neat with the acetabular bone trailing edge, and galianconism is downward, one arm places ischial tuberosity, and an arm places ischial spine; Long-armed upwards an arm places top, mortar top, and an arm places the hipbone body.After plasticity is satisfied, steel plate according to the moulding same model of shape of template, whether cut apart steel plate (blocking long and short arm) according to the determining positions of classification of fracture and fracture line, cut apart as need, can be as required optionally cut, after getting required part steel plate and placing correct position, use specific purpose tool boring, depth measurement, tapping in the circular arc incisura punishment of long and short arm, insert the screw of suitable number, length, finish the internal fixation of fracture.

Claims

1, a kind of acetabular bone rear wall, rear pillar fracture internal fixation heterotype steel plate, it is characterized in that: its integral body is " X " shape; Its body is the peltate that four limits are the circular arc incisura, and body stretches out an arm respectively for four jiaos, and wherein two is long-armed, and two is galianconism; There is symmetric circular arc incisura on described galianconism root both sides; Both sides also have symmetric circular arc incisura on described long-armed root and the arm; On described peltate body and four arms the staple hole is arranged.

2, acetabular bone rear wall according to claim 1, rear pillar fracture internal fixation heterotype steel plate, it is characterized in that: the long 40-50 millimeter in the shortest position of described peltate body, the narrowest position width 26-34 millimeter, the arc radius of two circular arc incisuras along its length is the 42-60 millimeter, and the arc radius of two circular arc incisuras differs 2 millimeters about every block plate, and 6 circular staple holes are arranged on the described peltate body; The long 20-25 millimeter of described galianconism, wide 10-15 millimeter, wherein separated time intersects and is 38-42 degree angle in separated time and the body, and there is a circular staple hole in galianconism central authorities; Described long-armed long 40-50 millimeter, wide 10-15 millimeter, wherein separated time intersects and is 28-33 degree angle, 3 circular staple holes of uniform distribution along its length in separated time and the body; Described nail bore dia is the 4-6 millimeter.

3, acetabular bone rear wall according to claim 1 and 2, rear pillar fracture internal fixation heterotype steel plate, it is characterized in that: described steel plate thickness is the 2-3 millimeter.