CN208974070U

CN208974070U - Articulatio sacroiliaca fracture connecting plate

Info

Publication number: CN208974070U
Application number: CN201721053665.4U
Authority: CN
Inventors: 杨锡明; 吕东
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-22
Filing date: 2017-08-22
Publication date: 2019-06-14
Anticipated expiration: 2027-08-22

Abstract

The utility model relates to a kind of articulatio sacroiliaca fracture connecting plates, belong to the medical instrument that orthopaedics uses.The technical solution adopted in the utility model is: articulatio sacroiliaca fracture connecting plate, including two symmetrically arranged wing plates, wing plate is connected in end by intermediate plate, at 60 degree of angle between two wing plate, round slot is had in the middle part of the intermediate plate and wing plate, the end of the wing plate is arc-shaped, the inside flanging side face in the edge of wing plate and intermediate plate, the circle slot face flange inwardly.Two round slots are respectively equipped on the wing plate and intermediate plate, the wing plate and intermediate plate margin location between two round slots install the notch of indent, the equally inside flanging side face of the notch of the indent.

Description

Articulatio sacroiliaca fracture connecting plate

Technical field

The utility model relates to a kind of articulatio sacroiliaca fracture connecting plates, belong to the medical instrument that orthopaedics uses.

Background technique

Sacroiliac complexity is made of sacrum knee joint and surrounding ligaments, is formed suspension bridge stable structure pelvis group, is the master of basin Rock-steady structure is wanted, main mechanical load is carried./ 6th pelvic fracture involves sacrum coke joint complex, to some extent Sacrum knee joint and surrounding ligaments are damaged, the unstable of pelvic ring is further resulted in.Therefore, the stabilization of sacrum compound knee joint body is rebuild Property for treatment pelvic fracture it is extremely important.

Since Avila1941 proposes anterior approach approach first, preceding road internal fixation is saved in sacrum impregnable pass and is damaged Wound treatment Zhong Ying ?it is more and more extensive, especially in old fractures of pelvis, anterior approach has become the master of Sacroiliac joint injury Want treatment method.Currently, the methods of internal fixation that anterior approach is mainly taken is that across the sacrum knee joint of reconstruction plate is fixed, using two pieces The reconstruction plate in three or four holes, across articulatio sacroiliaca angulation are fixed.Biomechanics Research shows traditional reconstruction plate delineation sacrum knee joint damage Wound has good stability.

But there is also some disadvantages for traditional articulatio sacroiliaca reconstruction plate.For example premenstrual road operation wound is big, bleeding is more, and has Higher waist sacrum thousand and nervus cutaneus femoris lateralis damage risk.Traditional two blocks of steel plates of sacrum ilium reconstruction plate original adoption are placed in parallel, because The unstability of quadrangle causes its biomethanics unstable, cannot firm fixed sacroiliac dislocation.

Summary of the invention

The present invention provides a kind of articulatio sacroiliaca fracture connecting plate, solves articulatio sacroiliaca fracture connecting plate and is easy asking for displacement Topic.

To achieve the above object, the technical solution adopted by the present invention is that:

Articulatio sacroiliaca fracture connecting plate, including two symmetrically arranged wing plates, wing plate is connected in end by intermediate plate, described At 60 degree of angle between two wing plates, round slot is had in the middle part of the intermediate plate and wing plate, the end of the wing plate is circle The inside flanging side face in the edge of arc, wing plate and intermediate plate, the circle slot face flange inwardly.

Preferably, be respectively equipped with two round slots on the wing plate and intermediate plate, wing plate between two round slots and Intermediate plate margin location installs the notch of indent, the equally inside flanging side face of the notch of the indent.

Further preferably, among two round slot bores of intermediate plate to be equipped with pre-determined bit hole, be pre-positioned hole is directly 2mm.

Preferably, the edge thickness of wing plate and intermediate plate after flange is 2.5mm, the length of the wing plate and intermediate plate is all For 20mm, wing plate and intermediate plate width are 10mm.

Preferably, the link position of wing plate and intermediate plate is smooth curve.

Preferably, the width of the circle slot is 3.5mm, the notch diameter of the indent is 2mm.

Utility model has the advantages that simplifying traditional operation, this connection is fixed temporarily using 2.0 millimeters of Kirschner wires Plate design, greatly accelerates the installation course of butterfly bone plate before sacrum.Because the position of articulatio sacroiliaca is deeper, in past tradition Reconstruction plate lacks Kirschner wire and is fixed temporarily, and doctor need to be fixed temporarily reconstruction plate with finger, operates very inconvenient.It is using After 2.0mm Kirschner wire is fixed temporarily, butterfly synthetism Board position can be maintained before sacrum, and screw is easily placed, when making operation Between shorten dramatically.Compared with square plate, lateral margin does not influence surgeon to articulatio sacroiliaca reset case close to articulatio sacroiliaca Judgement.This bone plate is fixed for face, and fixation is more reliable.This bone plate is highly-safe apart from nerve location.Present apparatus width is 1.0 centimetres, the distance (1.5 centimetres) less than L4 nerve root apart from articulatio sacroiliaca, therefore can safely place without damaging waist Sacrum is dry.Upper and lower two alar parts form triangle rock-steady structure, have good support force.

Detailed description of the invention

Fig. 1 is the main view of the utility model,

Fig. 2 is the left view of the utility model,

Fig. 3 is the rearview of the utility model.

Fig. 4 is the utility model use position and stress test displacement curve figure in articulatio sacroiliaca model.

Fig. 5 is traditional bone plate position and stress test displacement curve figure in articulatio sacroiliaca model.

Appended drawing reference:

4 flange of the round slot of 1 wing plate, 2 intermediate plate 3,5 notch 6 is pre-positioned 7 positioning tooth of hole.

Specific embodiment

The utility model is a kind of articulatio sacroiliaca fracture connecting plate, and structure is as shown in Figs. 1-3.A kind of articulatio sacroiliaca fracture company Fishplate bar, characterized in that including two symmetrically arranged wing plates, wing plate is connected in end by intermediate plate, at folder between two wing plate 60 degree of angle, has round slot in the middle part of the intermediate plate and wing plate, the end of the wing plate be it is arc-shaped, wing plate is in Between plate the inside flanging side face in edge, the circle slot face flange inwardly, wing plate and intermediate plate thickness are 1mm, the connection Plate is integrated processing punch forming, and the end face edge towards inside of flange is equipped with positioning tooth.

Two round slots, wing plate and intermediate plate marginal position between two round slots are respectively equipped on wing plate and intermediate plate If the notch of indent, the equally inside flanging side face of the notch of the indent.

Pre-determined bit hole is equipped among two round slot bores of intermediate plate, be pre-positioned hole is directly 2mm.Wing plate and intermediate plate are turning over Edge thickness behind side is 2.5mm, and the length of the wing plate and intermediate plate is all 20mm, and wing plate and intermediate plate width are 10mm.The wing The link position of plate and intermediate plate is smooth curve.The width of the circle slot is 3.5mm, and the notch diameter of the indent is 2mm。

Operating time selection, Sacroiliac joint injury opportunity of operation are typically chosen in after wound 5-14 days.It is preoperative to carry out row pair It is drawn on the condyle of femur of side, counterextension power can be increased in healthy limb lower limb.The traction of bilateral femur is led relative to only progress unilateral side Draw, for pelvic fracture and Sacroiliac joint injury, especially has better reset response to Tile c-type pelvic fracture.

Surgical procedure, the use to the present apparatus, operation use modified form Ilioinguinal approach approach, pass through the achievable ilium of iliac fossa window The reset and fixation of ilium joint injury, should be noted that protection nervus cutaneus femoris lateralis when appearing.Meanwhile being entered by modified form Ilioinguinal approach Road can damage pelvis front ring and be resetted and be fixed.

After completing Sacroiliac joint injury reset, the present apparatus of suitable types is selected, the sacrum ilium of oneself reset can be placed directly in In front of joint, articulatio sacroiliaca rumpbone side is close in interior lateral margin, and the present apparatus connects board body part front nail hole apart from ala sacralis veutro edge 0. 5cm.Using two piece of 2. Omm diameter Kirschner wire through temporarily fixing this connecting plate pre-fixing hole.According to drilling, depth measurement, set nail Sequentially, 6 pieces of appropriate length spiral shell rutheniums are successively respectively implanted, wherein two pieces of rumpbone side, 4 pieces of ilium petty official side.

The present apparatus and traditional bone plate carry out model measurement,

Fig. 4 is the test chart of the present apparatus, and abscissa is displacement scale, and ordinate is the pressure applied.

Fig. 5 is the test chart of traditional bone plate, and abscissa is displacement scale, and ordinate is the pressure applied.

Wherein in the case where applying the identical situation of pressure size, the displacement of the present apparatus is less than the displacement of traditional bone plate.It proves The present apparatus can provide good recovery effects in articulatio sacroiliaca fracture for patient.

Claims

The connecting plate 1. a kind of articulatio sacroiliaca is fractured, characterized in that including two symmetrically arranged wing plates, wing plate passes through centre in end Plate is connected, and at 60 degree of angle between two wing plate, has round slot, the wing plate in the middle part of the intermediate plate and wing plate End be arc-shaped, the inside flanging side face in the edge of wing plate and intermediate plate, the circle slot face flange inwardly, wing plate and Intermediate plate thickness is 1mm, which is integrated processing punch forming, and the edge end face of flange towards inside is equipped with positioning tooth.
The connecting plate 2. articulatio sacroiliaca according to claim 1 is fractured, characterized in that set respectively on the wing plate and intermediate plate There are two round slots, the wing plate and intermediate plate margin location between two round slots install the notch of indent, the notch of the indent Same inside flanging side face.
The connecting plate 3. articulatio sacroiliaca according to claim 1 is fractured, characterized in that be equipped among two round slot bores of intermediate plate It is pre-positioned hole, be pre-positioned hole is directly 2mm.
The connecting plate 4. articulatio sacroiliaca according to claim 2 is fractured, characterized in that the side of wing plate and intermediate plate after flange For edge with a thickness of 2.5mm, the length of the wing plate and intermediate plate is all 20mm, and wing plate and intermediate plate width are 10mm.
The connecting plate 5. articulatio sacroiliaca according to claim 1 is fractured, characterized in that the link position of wing plate and intermediate plate is Smooth curve.
The connecting plate 6. articulatio sacroiliaca according to claim 2 is fractured, characterized in that the width of the circle slot is 3.5mm, The notch diameter of the indent is 2mm.