阅读说明：本技术 一种踝上截骨手术套装工具装置及其制作方法 (Ankle osteotomy kit device and manufacturing method thereof ) 是由 王成功 刘华 钟达 于 2019-11-21 设计创作，主要内容包括：一种踝上截骨手术套装工具装置。本发明是由截骨导板、内固定和临时固定工具三者装配成一体化组配式套装。该装配套装不需要术中临时选择内固定,不需要术中塑性,安装过程快速、简单,内固定安装和选择不过分依赖术者主观经验,安装完成后取下并丢弃套装中的截骨导板和临时固定工具,不用思考和担心内固定位置会受到之前临时内固定的影响。(A kit device for an ankle osteotomy. The invention is an integrated assembly type suit assembled by three components of a bone cutting guide plate, an internal fixing tool and a temporary fixing tool. This assembly suit does not need intraoperative temporary selection internal fixation, does not need intraoperative plasticity, and the installation is quick, simple, and internal fixation installation does not rely on art person's subjective experience with the selection excessively, takes off and abandons the osteotomy baffle and the temporary fixing tool in the suit after the installation is accomplished, need not think and worry that internal fixation position can receive the influence of interim internal fixation before.)

1. A kit device for an ankle osteotomy, characterized in that the kit comprises a bone cutting guide plate (1), a temporary fixing tool (3) and an internal fixing (2) which are mutually connected in a matching way;

the bone cutting guide plate (1) is provided with a veneering part which is uniquely matched with a target bone area, the bone cutting guide plate (1) can be attached to the surface of a bone in a unique mode according to the veneering part, the bone cutting guide plate (1) is provided with Kirschner wire guide holes and bone cutting grooves (5) which are used for corresponding bone cutting knives, the Kirschner wire guide holes are positioned on two sides of the bone cutting grooves, and Kirschner wires used for fixing the bone cutting guide plate (1) on the surface of the bone are arranged in the Kirschner wire guide holes;

the bone cutting guide plate is taken out after the bone is cut by the temporary fixing tool (3) and is installed to the bone surface along the direction of the Kirschner wire, the temporary fixing tool (3) is provided with a veneering part which is uniquely matched with a target bone area, and the bone cutting guide plate can be attached to the bone surface in a unique mode according to the veneering part so as to play a role in temporarily fixing the bone at the bone cutting end;

the internal fixation (2) is temporarily fixed to form a left side and a right side, the left side and the right side are detached and then attached to the bone surface along the direction of the Kirschner wire, the internal fixation is attached to the corresponding position of the Kirschner wire in an exclusive direction, and a screw is implanted into each hole after the Kirschner wire is taken down.

2. The novel kit for ankle osteotomy according to claim 1, wherein: the osteotomy guide plate (1) comprises an integrally printed bone surface attaching part (4) and an osteotomy groove (5).

3. The novel kit for ankle osteotomy according to claim 1, wherein: the internal fixation (2) comprises an anatomical steel plate (6) and a locking screw (7), a screw hole matched with the locking screw (7) is formed in the anatomical steel plate (6), and the anatomical steel plate (6) is connected with the locking screw (7) through the screw hole.

4. The novel kit for ankle osteotomy according to claim 3, wherein: the anatomical steel plate (6) is made of a titanium alloy material; and after the anatomical steel plate is designed, printing and manufacturing by using a titanium alloy material through a 3D printer.

5. The novel kit for ankle osteotomy according to claim 1, wherein: the temporary fixing tool (3) comprises a Kirschner wire hole component (8) and a bone veneering component (9); the kirschner wire hole component and the bone veneering component are integrated and are integrally printed through additive manufacturing; the k-wire hole component and the bony facing component are detachably connected.

6. A manufacturing method of a novel tool set device for an ankle osteotomy is characterized in that: the method comprises the following steps:

(1) extracting CT data of the patient and analyzing the state of illness;

(2) simulating an osteotomy by a computer and determining an osteotomy scheme;

(3) designing a bone cutting guide plate by a computer;

(4) computer designing internal fixation according to the condition after osteotomy;

(5) designing a temporary fixing tool according to the internal fixation and the bone condition of a patient after osteotomy;

(6) fitting the osteotomy guide plate, the internal fixation tool and the temporary fixation tool according to the operation process to form an integrated and assemblable set;

(7) performing computer simulation operation on a computer by using a designed tool according to operation steps, and considering that the operation is qualified if each process has no problem; after the verification is finished, manufacturing by using a material increase manufacturing method;

(8) the osteotomy guide plate, the internal fixation tool and the temporary fixation tool are assembled into an integrated assembly type set.

7. The manufacturing method according to claim 6, wherein the step (1) is specifically: the CT data of the patient is modeled to obtain a three-dimensional digital model of the complicated deformity of the ankle and the multiple joints of the patient, the deformity condition is fully known, and the condition of the patient is analyzed.

8. The method of manufacturing of claim 6, wherein the additive manufacturing method in step (7) is 3D printing.

Technical Field

The invention belongs to the field of orthopedic surgery tools, and relates to a kit device for an ankle osteotomy and a manufacturing method thereof.

Background

Ankle deformities are complex and involve eight dimensions, namely lengthening, shortening, inversion, eversion, pronation, supination, dorsiflexion and plantarflexion, of multiple parts of the lower leg and ankle. At present, the ankle joint line of force is corrected by adopting the ankle osteotomy, and the normal anatomy and stress of the ankle joint are recovered, but the difficulty of using the traditional operation fixing tool in the prior art is very high, the operation time is too long, and the operation is excessively dependent on the experience of an operator and is not accurate.

Disclosure of Invention

In order to solve the problems of the prior art, the invention aims to provide a kit device for an ankle osteotomy and a manufacturing method thereof.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a kit device for an ankle osteotomy procedure, said kit comprising a osteotomy guide (1), an internal fixation (2) and a temporary fixation tool (3);

the bone cutting guide plate is provided with a veneering part which is uniquely matched with a target bone area, the bone cutting guide plate can be attached to the surface of a bone in a unique mode according to the veneering part, the bone cutting guide plate (1) is provided with Kirschner wire guide holes and a bone cutting groove corresponding to a bone cutter, the Kirschner wire guide holes are positioned on two sides of the bone cutting groove, and Kirschner wires for fixing the bone cutting guide plate (1) on the surface of the bone are arranged in the Kirschner wire guide holes;

the bone cutting guide plate is taken out after the bone is cut and is installed to the bone surface along the direction of the Kirschner wire, the temporary fixing tool is provided with a veneering part which is uniquely matched with the target bone area, and the bone cutting guide plate can be attached to the surface of the bone in a unique mode according to the veneering part so as to play a role in temporarily fixing the bone at the bone cutting end;

the internal fixation is temporarily fixed into the left side and the right side, the left side and the right side are detached and then are attached to the bone surface along the direction of the Kirschner wire, the internal fixation is used for attaching holes at the corresponding positions of the Kirschner wire to the bone surface in an unique direction, and each hole is provided with a screw after the Kirschner wire is taken down.

Further, the osteotomy guide plate (1) comprises an integrally printed bone surface fitting part (4) and an osteotomy groove (5).

Furthermore, the internal fixation (2) comprises an anatomical steel plate (6) and a locking screw (7), a screw hole matched with the locking screw (7) is formed in the anatomical steel plate (6), and the anatomical steel plate (6) is connected with the locking screw (7) through the screw hole.

Furthermore, the anatomical steel plate (6) is made of a titanium alloy material.

Further, the temporary fixing tool (3) comprises a kirschner wire hole component (8) and a bone veneering component (9); the k-wire hole component and the bone veneering component are integrated and are integrally printed through additive manufacturing. But by design, the two parts are physically connected only by very limited connecting rods (connection points). The two parts can be easily separated after the connection points are easily broken.

A manufacturing method of a novel tool set device for an ankle osteotomy comprises the following steps:

(1) extracting CT data of the patient and analyzing the state of illness;

(2) simulating an osteotomy by a computer and determining an osteotomy scheme;

(3) designing a bone cutting guide plate by a computer;

(4) computer designing internal fixation according to the condition after osteotomy;

(5) designing a temporary fixing tool according to the internal fixation and the bone condition of a patient after osteotomy;

(6) fitting the osteotomy guide plate, the internal fixation tool and the temporary fixation tool according to the operation process to form an integrated and assemblable set;

(7) performing computer simulation operation on a computer by using a designed tool according to operation steps, and considering that the operation is qualified if each process has no problem; after the verification is finished, manufacturing by using a material increase manufacturing method;

(8) the osteotomy guide plate, the internal fixation tool and the temporary fixation tool are assembled into an integrated assembly type set.

Further, the step (1) is specifically as follows: the CT data of the patient is modeled to obtain a three-dimensional digital model of the complicated deformity of the ankle and the multiple joints of the patient, the deformity condition is fully known, and the condition of the patient is analyzed.

Further, the additive manufacturing method in the step (7) is 3D printing.

Compared with the prior art, the invention has the beneficial effects that:

1. an integrated assembly type suit is innovatively designed and manufactured, the position of the temporarily fixed skeleton is reliable, subjective experience of an operator is not excessively relied, the temporary internal fixing position does not need to be considered and worried to influence subsequent internal fixing implantation, and the fixing effect is better.

2. The original state of the disease is perfectly restored by a computer three-dimensional means before the operation, the plan before the operation is detailed, the operation plan is fully prepared, and the manufactured ankle osteotomy tool set device almost perfectly conforms to the internal fixation of the patient and has better fixation effect; the ankle osteotomy suit tool device is used, the subjective experience of an operator is not excessively relied, the whole course of the operation process is personalized and accurate, the operation time is faster, the operation steps are simpler, the operation steps and the orthopedic positions are more accurate, the operation safety is higher, and the temporary internal fixing position and the internal fixing implantation position are not considered and worried to influence each other in the operation;

3. the internal fixation is simple and fast to install (the traditional method is to install the internal fixation on the bone, the new method is to remove other parts of the suit and then leave the internal fixation), the plasticity in the operation is not needed, a large amount of internal fixation materials do not need to be prepared before the operation, and the fluoroscopy is rarely needed in the operation.

Drawings

FIG. 1 is an assembly view of the present invention.

FIG. 2 is a schematic view of the bone cutting guide of the present invention.

Fig. 3 is a schematic structural view of the internal fixation of the present invention.

Fig. 4 is a schematic structural view of the temporary fixing tool of the present invention.

Fig. 5 is a schematic structural view of the structural connection facet of the present invention.

FIG. 6 is a schematic view of the bone cutting guide of the present invention.

Fig. 7 is a disassembled structure view of the temporary fixing tool of the present invention.

1-osteotomy guide plate, 2-internal fixation, 3-temporary fixation tool, 4-bone surface joint part, 5-osteotomy groove, 6-dissecting steel plate, 7-locking screw, 8-kirschner wire hole part and 9-bone veneering part.

Detailed Description

The technical scheme of the invention is further described in detail by combining the drawings and the detailed implementation mode: