CN211610022U - Inboard coaptation board of thighbone neck - Google Patents

Abstract

The utility model discloses a femur neck inner side bone fracture plate, which comprises a head part and a cadre part which are arranged integrally, wherein the bone fracture plate is distributed with a pressurizing hole, a long circular hole and a locking pressurizing combination hole along the length direction, and the holes correspond to different included angles between an axis and a plate body; the bone fracture plate is bent in the length direction, the bent shape is matched with the bending camber of the inner side of the femoral neck, meanwhile, the bone fracture plate is bent in the width direction, and the bent plate surface is matched with the surface shape of the inner side of the femoral neck. The utility model discloses broken through traditional method of fixing from thighbone lateral surface tension side, adopted fracture pressure side fixed, avoided traditional thighbone operation shortcoming effectively. The arc design of the bone fracture plate is tightly attached to the surface of the femur, the bone fracture plate is suitable for residual displacement and further reduction at different positions and fixation of fracture fragments, a common lag screw is combined with a locking nail, and pressurization fixation and traction are combined, so that a good fixing effect is achieved, the operation time and recovery time are greatly shortened, and the pain of a patient is effectively relieved.

Description

Inboard coaptation board of thighbone neck

Technical Field

The invention relates to the technical field of orthopedic implants, in particular to a femoral neck inner side bone fracture plate.

Background

Femoral neck fracture is one of the common fracture types in clinic, and the incidence rate is remarkably increased along with the accelerated aging process of the population. The patient with proximal and lateral femoral fracture has difficulty in moving, and brings much pressure to the family of the patient.

At present, when the operation of fracture on the inner side of femoral neck is carried out, in order to ensure the positioning precision of the fracture after the reduction of the operation and accelerate the bone healing speed, an internal fixation treatment mode is often adopted.

The principle of the internal fixation treatment mode is to cut a cut at the fracture end, place a bone fracture plate, enable the bone fracture plate to cross the fracture position, fix the bone fracture plate at the far and near ends of the fracture by using screws, and enable the skeleton at the fracture end to be effectively fixed. Therefore, the bone fracture plate has an appearance similar to the surface shape of the bone and is provided with screw holes for screws to pass through.

The existing femoral neck fracture bone-knitting operation is not fixed by a similar inner side bone plate, the common bone plate is installed from the outer side of the femur and is fixed by pulling the femoral head through a lag screw, in the practical application process, the operation of a small incision cannot be realized, the bone nonunion is easily caused, and the treatment of multi-fracture-block fracture or comminuted fracture is not facilitated. Therefore, how to improve the reduction and fixation quality of femoral neck fracture is still a difficult problem to be solved urgently by orthopedic doctors at present.

Disclosure of Invention

The invention aims to provide a bone fracture plate for the inner side of a femoral neck, which is adaptive to the anatomical form of the inner side of the femoral neck and is arranged from the front inner side or the right inner side of the femoral neck, and the pressure side fixation is more favorable for fracture healing than the tension side fixation, so that the full-section fracture of the femur is satisfactorily reset and firmly fixed, the postoperative complications can be reduced, and the clinical curative effect is improved.

In order to solve the technical problems, the invention provides a bone fracture plate for the inner side of the femoral neck, which can be divided into a head part and a dry part; the head part is provided with a long waist-shaped pressurizing hole, the dry part is provided with a long circular hole and a locking pressurizing combination hole, and included angles between the axes of the pressurizing hole, the long circular hole and the locking pressurizing combination hole and the plate body are different.

As above, the head of the bone fracture plate on the inner side of the femoral neck provided by the invention is bent inwards, and the shape design is favorable for the bone fracture plate on the inner side of the femoral neck to be attached to the inner side of the femoral neck, so that a better treatment effect is achieved; the included angles of the axes of the pressurizing hole, the long round hole and the locking pressurizing combination hole and the plate body are different, namely, the axes of the pressurizing hole, the long round hole and the locking pressurizing combination hole are arranged in a non-parallel mode, so that the locking screw can be conveniently fixed in a large range as far as possible, the implantation angles of the locking screws are different, the femoral neck fracture can be well fixed, the better fixing treatment effect is achieved, and the locking screw is not easy to disengage.

Preferably, the head tip is provided with one or more pressure holes, and one of the holes is directed axially toward the human head or the femoral head. Preferably, the neck portion has an oblong hole.

Preferably, the stem is provided with a plurality of locking press-coupling holes.

Preferably, the number of the locking and pressure-bonding holes is 1 to 10.

Preferably, the bone plate is made of titanium alloy material.

Optionally, a plurality of the k-wire holes are respectively formed in the top end of the head portion and the bottom end of the cadre portion.

The invention has the beneficial effects that:

the invention is designed according to the anatomical structure and the fracture characteristics of the femur, and is used for the pressure side fixation of the fracture, the arc-shaped design of the bone fracture plate is tightly attached to the surface of the femoral neck, the invention is suitable for the fracture fixation of the femoral neck, the combination of a common lag screw and a locking nail, and the combination of pressurization fixation and traction, and obtains excellent fixation effect.

The invention has simple and reasonable structure, firm fixation, accurate positioning and simple and flexible operation, and can reduce repeated resetting and fixation in the operation; the implant is simple, and the stimulation of local soft tissues is reduced; the direction is flexible and changeable, and fracture fragments can be effectively stabilized; firm fixation, early functional exercise and few postoperative complications.

The invention breaks through the traditional method for fixing from the tension side of the outer side surface of the femur, is an innovation of the internal fixation technology of the femoral neck fracture, effectively avoids the defects of the traditional femur operation, solves the problem which is not solved for a long time, greatly shortens the operation time and the recovery time, effectively relieves the pain of patients and has good social benefit and economic benefit.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the medial femoral neck bone plate of fig. 1.

Fig. 3 is a schematic diagram of the present invention for use on the medial side of the femoral neck.

Description of reference numerals: the bone plate comprises a head part 11, a pressurizing hole 111, a dry part 12, an oblong hole 121, a locking pressurizing combination hole 122, a femoral neck inner side bone plate 1, a femur 2 and a femoral head 3.

Detailed Description

The core of the invention is to provide the femur neck inner side bone fracture plate, the structural design of the fitting type femur neck inner side bone fracture plate can adapt to different types of femur neck fractures, the screw is not easy to be separated after fixation, better internal fixation effect can be realized, and better treatment effect can be finally obtained.

In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-3, fig. 1 is a schematic structural view of a bone plate for the medial side of the femoral neck according to the present invention; fig. 2 is a left side view of the bone plate of fig. 1, and fig. 3 is a schematic view of the bone plate for use on the inner side of a femoral neck.

In this embodiment, the femoral neck medial bone plate 1 comprises a head portion 11 and a stem portion 12 which are integrally arranged; the head 11 is provided with a long waist-shaped pressurizing hole 111, and the axis of the pressurizing hole points to the head of a human body; the head 11 is integrally concave and twisted to a side by a preset angle.

As above, the femoral neck medial plate can be divided into a head portion 11 and a stem portion 12; the head 11 is bent towards the inner side and twisted towards one side by a preset angle, and the shape design is favorable for the attachment of the bone fracture plate on the inner side of the femoral neck and the inner side of the femoral neck, so that a better treatment effect is achieved; the included angles of the head part 11 and the cadre part 12 and the plate body are different, so that the locking screw can be fixed as large as possible, the angled implantation can provide better holding force in the operation, the fracture types such as multi-fracture-block fracture or comminuted fracture can be well fixed, the better fixing treatment effect is achieved, and the locking screw is not easy to separate.

It will be appreciated that, in practice, the number and arrangement of the pressurizing holes 111 of the head 11 may be set as desired.

The bone fracture plate is a long strip-shaped steel plate, the bone fracture plate is bent in the length direction, the bent shape is matched with the forward bending radian of the femur, the bone fracture plate is bent in the width direction, the bent surface is matched with the shape of the rear side surface of the femur, a plurality of screw holes are distributed on the bone fracture plate along the length direction, the screw holes are of a double-hole connection structure, the double holes are respectively locking screw holes and common screw holes, and a plurality of Kirschner wire fixing holes can be formed in the bone fracture plate.

In a specific scheme, the trunk part 12 of the bone plate on the inner side of the femoral neck is provided with the oblong hole 121, the bone plate can be temporarily fixed by a Kirschner wire through the oblong hole, and the bone plate can play a role in adjusting the position of the bone plate. Although only one oblong hole is shown, two or more oblong holes 121 may be provided as needed, depending on the specific adjustment length of the oblong holes 121, the adjustment requirements of the bone plate position, and the like.

In particular embodiments, the stem 12 is provided with a plurality of locking compression coupling holes 122 to provide axial compression or locking.

Specifically, the number of the locking and pressurizing combination holes 122 of the dry part 12 is specifically set to be 1-10, so as to meet the basic fixing or pressurizing requirement of the dry part 12.

In order to facilitate the balance of the forces applied when the bone plate is fixed on the corresponding bone segments, a plurality of locking and pressurizing combination holes 122 of the trunk portion 12 are uniformly distributed along the length direction of the trunk portion 12.

In the concrete scheme, the specific shape of the femoral neck inner side bone fracture plate is of an anatomical structure comprising the bending degree and the twisted preset angle, so that the femoral neck inner side bone fracture plate can be better attached to the surface of the femoral neck inner side bone, and a better matching effect is achieved, thereby achieving a better clinical fixing effect and reducing the difficulty of clinical treatment.

Here, the anatomical structure means that the structure of the bone fracture plate on the inner side of the femoral neck is obtained according to the bone surface fitting design of the three-dimensional data model on the inner side of the human femoral neck, and can be accurately determined according to the actual anatomical data of clinical individual patients.

In actual setting, after the specific structure of the femoral neck inner side bone fracture plate is obtained by the method, correction can be performed through a fitting experiment, namely, after the femoral neck inner side bone fracture plate is manufactured, anatomical fitting performance of the femoral neck inner side bone fracture plate is verified, so that the femoral neck inner side bone fracture plate and the surface of the femoral neck inner side bone can be better fitted.

During specific operation, the femoral neck inner side bone fracture plate is attached to the bone surface of the femoral neck inner side bone specimen, the farthest distance between the femoral neck inner side bone fracture plate and the bone specimen is measured, if the farthest distance is within a limited range, the attaching performance of the bone fracture plate is considered to be qualified, and if the farthest distance exceeds the limited range, the shape of the bone fracture plate is corrected, so that the farthest distance between the bone fracture plate and the bone specimen is within the limited range.

In this embodiment, the bone plate is made of a titanium alloy material.

In the embodiment, the titanium alloy material has good histocompatibility, and the material and morphological characteristics of the titanium alloy can enable the bone fracture plate to have the elastic fixing performance, allow the micromotion between fracture ends, and enable the fracture to generate stress stimulation, thereby being beneficial to bone healing and achieving the purpose of biological fixation.

The medial femoral neck bone plate provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall into the protection scope of the claims of the present invention.

Claims (8)

1. A bone fracture plate for the inner side of a femoral neck is characterized in that the bone fracture plate is a strip-shaped bone fracture plate and comprises a head part (11) and a dry part (12) which are integrally arranged; the head part (11) is provided with a long waist-shaped pressurizing hole (111), the dry part is provided with a long round hole (121) and a locking pressurizing combination hole (122), and included angles between axes corresponding to the pressurizing hole (111), the long round hole (121) and the locking pressurizing combination hole (122) and the plate body are different.

2. The medial femoral neck bone plate of claim 1, wherein the plate is curved in length to match the curvature of the medial femoral neck; meanwhile, the bone fracture plate is bent in the width direction, and the shape of the bent plate surface is matched with the shape of the inner side surface of the femoral neck.

3. Bone plate according to claim 2, characterized in that the head (11) is provided at its top with one or more compression holes (111) with an axial direction directed towards the human or femoral head.

4. Femoral neck medial osteosynthesis plate according to any one of claims 1 to 3, characterized in that said stem (12) is provided with one or more oblong holes (121).

5. The femoral neck medial plate of claim 4, wherein the stem (12) is provided with a plurality of locking compression bonding holes (122).

6. The femoral neck medial bone plate according to claim 5, wherein the number of the locking compression bonding holes (122) is 1 to 10.

7. The medial femoral neck bone plate of claim 6, wherein the bone plate is made of a titanium alloy material.

8. The medial femoral neck bone plate of claim 7, wherein the bone plate has a plurality of k-wire holes at the top end of the head portion and the bottom end of the stem portion.

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