CN208864463U - A kind of pelvis quadrilateral hook plate - Google Patents

Abstract

The utility model discloses a kind of pelvis quadrilateral hook plates, including bar steel plate and lock screw, fixation hole is offered on the bar steel plate, and fixation hole is equidistantly evenly distributed on bar steel plate, the fixation hole inner wall is provided with locking screw thread, the shape of the bar steel plate and the coronal section profile of pelvis quadrilateral medial surface coincide, the lock screw is threadedly coupled through pelvis front pillar with locking on fixation hole, the bar steel plate has first surface, First Transition curved surface, second curved surface, second fillet surface and third curved surface, first surface and the second curved surface are connected by First Transition surface smoothing, second curved surface and third curved surface pass through the second fillet surface smooth connection, and second fillet surface torsion make the second curved surface and third curved surface not in the same plane.The utility model have many advantages, such as quick insertion, it is portable adjust, compactness it is high, effectively avoid be not fixed firmly lean on, the generation for the problems such as infection risk is big.

Description

A kind of pelvis quadrilateral hook plate

Technical field

The utility model relates to surgical operation device technical field, specially a kind of pelvis quadrilateral hook plate.

Background technique

Steel plate is a kind of inside-fixture of fixed fracture most commonly used in bone surgery, it is a kind of to treat fracture most Effective method, meanwhile, it also functions to indispensable role in the treatment of pelvic fracture, and pelvis surface curve is more and part Curved surface sclerotin is thin, and it is ever-changing especially to face classification of fracture caused by the dissection of juxta-articular part is complicated and the surface of a wound, clinically Common reconstruction plate needs the position placed in art further directed to fracture and steel plate to carry out manual bending moulding.

Since current pelvis steel plate is mostly to keep straight on and the reconstruction plate of arc, the amplitude of manual bending steel plate, angle and Direction fully rely on surgical doctor visually observe and experience, it is affixed with bone face to the greatest extent to be unable to reach steel plate, usually Cause to be not fixed firmly and lean on, and when periarticular is placed in fixed, screw is easy to squeeze into intra-articular, leads to the concurrent of severe postoperative Disease, i.e., the current surgical doctor inside-fixture operation difficulty that bending is suitable for out in art is big, and to solve the above-mentioned problems, spy proposes A kind of pelvis quadrilateral hook plate is for patient's use.

Utility model content

The purpose of this utility model is to provide a kind of pelvis quadrilateral hook plates, pass through setting bar steel plate and locking spiral shell Nail has many advantages, such as that quick insertion, portable adjusting, compactness are high, solves insertion and adjust the problems such as slow, compactness is poor.

To achieve the above object, the utility model provides the following technical solutions: a kind of pelvis quadrilateral hook plate, including item Shape steel plate and lock screw offer fixation hole on the bar steel plate, and fixation hole is equidistantly evenly distributed on bar steel plate, The fixation hole inner wall is provided with locking screw thread, the shape of the bar steel plate and the coronal section wheel of pelvis quadrilateral medial surface Exterior feature coincide, and the lock screw is threadedly coupled through pelvis front pillar with locking on fixation hole, and the bar steel plate is bent with first Face, First Transition curved surface, the second curved surface, the second fillet surface and third curved surface, first surface and the second curved surface pass through the first mistake Surface smoothing connection, the second curved surface and third curved surface are crossed by the second fillet surface smooth connection, and the second fillet surface reverses Make the second curved surface and third curved surface not in the same plane.

It is further used as the improvement of above-mentioned technical proposal, the angle of the first surface is 40 to 50 degree, radius is 40 to 60 millimeters, the angle of the second curved surface is 40 to 50 degree, radius is 120 to 150 millimeters, third The angle of curved surface is 120 to 150 degree, radius is ten to 15 millimeters, and First Transition curved surface and the second transition are bent The windup-degree in face is ten to 20 degree.

It is further used as the improvement of above-mentioned technical proposal, the fixation hole is slotted eye, and each fixation hole is arranged at edge There is rounded corner.

It is further used as the improvement of above-mentioned technical proposal, the outer ledge between the fixation hole is adjacent two-by-two is provided with recessed Slot.

It is further used as the improvement of above-mentioned technical proposal, the bar steel plate is pure titanium or medical stainless steel.

Compared with prior art, the beneficial effects of the utility model are as follows:

Statistically analyze the pelvis feature of national different age group crowd, the utility model Anterior column plate by first surface, Second curved surface, First Transition curved surface, the second fillet surface and third curved surface can be fitted most pelvis profiles, and doctor is facilitated to exist Steel plate is promptly squeezed into operation, when encountering anomaly of pelvis, doctor only needs the radian of fine tuning different curve and angle to complete wheel Exterior feature fitting reduces the stress that steel plate largely deforms accumulation, both improves wide usage, also reduce operation difficulty, easy to operate, practical Property is strong.

Detailed description of the invention

Fig. 1 is the utility model schematic view of the front view；

Fig. 2 is the utility model side structure schematic view.

In figure: 1, third curved surface；2, the second fillet surface；3, the second curved surface；4, First Transition curved surface；5, bar steel plate； 6, first surface；7, fixation hole；8, groove；9, lock screw.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1 to Fig. 2 is please referred to, a kind of embodiment provided by the utility model: a kind of pelvis quadrilateral hook plate, including item Shape steel plate 5 and lock screw 9, bar steel plate 5 are pure titanium or medical stainless steel, fixation hole 7 are offered on bar steel plate 5, and solid Determine hole 7 to be equidistantly evenly distributed on bar steel plate 5, fixation hole 7 is slotted eye, and each fixation hole 7 is provided with rounding at edge Angle, the outer ledge setting fluted 8 between fixation hole 7 is adjacent two-by-two, 7 inner wall of fixation hole is provided with locking screw thread, bar shaped steel The shape of plate 5 and the coronal section profile of pelvis quadrilateral medial surface coincide, and lock screw 9 is through pelvis front pillar and fixation hole 7 Upper locking is threadedly coupled, and bar steel plate 5 has first surface 6, First Transition curved surface 4, the second curved surface 3,2 and of the second fillet surface Third curved surface 1, first surface 6 and the second curved surface 3 pass through 4 smooth connection of First Transition curved surface, the second curved surface 3 and third curved surface 1 By 2 smooth connection of the second fillet surface, and the torsion of the second fillet surface 2 makes the second curved surface 3 and third curved surface 1 not same flat On face, the angle of first surface 6 is 40 to 50 degree, radius is 40 to 60 millimeters, and the angle of the second curved surface 3 is 40 It is 120 to 150 millimeters to 50 degree, radius, the angle of third curved surface 1 is 120 to 150 degree, Radius is ten to 15 millimeters, and the windup-degree of First Transition curved surface 4 and the second fillet surface 2 is ten to 20 degree.

The utility model can carry out fixed in effectively, the design of anatomical form for pelvis front pillar and quadrilateral surrounding fracture Closer to the physiological camber of quadrilateral inner sidewall, reduce because patient is different and it is experienced it is biased caused by subjectivity, Ke Yiyou Docile is imitated, or can reach effective docile by less bending moulding, reduces operating time, is reduced in art because exposing visual area repeatedly And to the stretch injury of soft tissue, reduce the risk of intraoperative hemorrhage and infection.

Secondly, inner fixed stand can be played the role of using locking design, good bone substitution supporting role is played, It can be reduced the loosening probability of nail-plate contact surface again.

The design of third, Interal fixation hole 7 show that selection is more firm, safety by a large amount of CT scan datas statistics Plant nail angle, reduce plant nail randomness, uncertainty, the screw placement joint being further reduced or puncture opposite side tissue Risk.

4th, the fixation hole 7 of rounded corner designs, and is embedded in ailhead in steel plate, reduces the damage to soft tissue, steel plate edge Groove 8 design, reduce steel plate and bone contact area, reduce stress shielding, promote knitting.

Working principle: medical staff is in use, according to the coronal section profile adjustment item of patient's pelvis quadrilateral medial surface Shape steel plate 5 makes first surface 6, First Transition curved surface 4, the second curved surface 3, the second fillet surface 2 and third on bar steel plate 5 The coronal section profile of curved surface 1 and patient's pelvis quadrilateral medial surface coincide, and runs through pelvis front pillar and fixation by lock screw 9 Locking, which is threadedly coupled, on hole 7 completes to fix, and forms skeletal support, above is the working method of the utility model.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (5)

1. a kind of pelvis quadrilateral hook plate, including bar steel plate (5) and lock screw (9), it is characterised in that: the bar shaped steel It is offered on plate (5) fixation hole (7), and fixation hole (7) is equidistantly evenly distributed on bar steel plate (5), in the fixation hole (7) Wall is provided with locking screw thread, and the shape of the bar steel plate (5) and the coronal section profile of pelvis quadrilateral medial surface coincide, institute It states lock screw (9) and lock on pelvis front pillar and fixation hole (7) and is threadedly coupled, the bar steel plate (5) is with the first song Face (6), First Transition curved surface (4), the second curved surface (3), the second fillet surface (2) and third curved surface (1), first surface (6) and Second curved surface (3) is bent by the second transition by First Transition curved surface (4) smooth connection, the second curved surface (3) and third curved surface (1) Face (2) smooth connection, and the second fillet surface (2) torsion makes the second curved surface (3) and third curved surface (1) not in the same plane.

2. a kind of pelvis quadrilateral hook plate according to claim 1, it is characterised in that: the angle of the first surface (6) Degree is 40 to 50 degree, radius is 40 to 60 millimeters, and the angle of the second curved surface (3) is 40 to 50 degree, radius is 120 to 150 millimeters, the angle of third curved surface (1) is 120 to 150 degree, radius is ten to 15 The windup-degree of millimeter, First Transition curved surface (4) and the second fillet surface (2) is ten to 20 degree.

3. a kind of pelvis quadrilateral hook plate according to claim 1, it is characterised in that: the fixation hole (7) is ellipse Shape hole, each fixation hole (7) are provided with rounded corner at edge.

4. a kind of pelvis quadrilateral hook plate according to claim 1, it is characterised in that: (7) two two-phase of fixation hole Fluted (8) are arranged in outer ledge between neighbour.

5. a kind of pelvis quadrilateral hook plate according to claim 1, it is characterised in that: the bar steel plate (5) is pure Titanium or medical stainless steel.