CN111613123A - Supplementary fibula cuts bone instrument for operation - Google Patents

Abstract

The invention discloses an auxiliary fibula osteotomy tool for surgery, which comprises a fibula head part, a fibula body part and an external ankle part which are sequentially connected, wherein the fibula body part comprises a plurality of connecting short sections, and adjacent connecting short sections are connected through spherical joints; the spherical joint comprises a sphere and a ball sleeve, one end of the connecting short section is provided with the sphere, the other end of the connecting short section is provided with the ball sleeve, and the sphere of one connecting short section and the ball sleeve of the other connecting short section are connected in a matched mode to form a pair of spherical pairs. This operation is with supplementary fibula osteotomy instrument can carry out the demonstration clinical operation in-process of arbitrary angle through rotating two adjacent connection nipple joints, the specific change process of fibula folding, intercepting, transplanting in-process.

Description

Supplementary fibula cuts bone instrument for operation

Technical Field

The invention belongs to the technical field of auxiliary teaching tools for operations, and relates to an auxiliary fibula osteotomy tool for operations.

Background

The skin flap design principle is that the lower leg on the same side of the inferior maxilla defect is used as a supply area, the lower leg on the side with more defects is selected for the anterior inferior maxilla defect, and the lower leg on the same side of the neck blood supply vessel is preferably used as the supply area if the two side defects are adopted. When the fibula flap is implanted into the mandible, the peroneal artery and vein should be positioned at the lower edge of the reconstructed lower collarbar, so that firm internal fixation of the outer edge can be ensured, and the blood vessel is not damaged by the implantation of the implant at the upper edge. The vessel pedicle should be designed as close as possible to the area at or near the lower collar corner, since the peroneal artery and vein are closest to the anastomotic vessel of the neck. The skin island is designed according to the position of the puncture branch, the center of the skin island is a peroneal puncture branch, and the long axis is parallel to the posterior edge of the fibula. The osteotomy length should be longer than the actual required length, and when the vascular pedicle length is insufficient, the excess bone tissue can be lengthened and removed along the bone surface, but the fibular ankle side should be kept at least 5cm long.

The free fibula flap of the defective repair of mandible can provide sufficient bone mass, the appearance of invariant has sufficient height and width to hold the implant, can satisfy the needs that the defective reconstruction of multiple type mandible. The blood supply vessel fibular artery and vein chamber of fibula is thicker, easily coincide, has the dual blood supply's of marrow and periosteum characteristics, can do the osteotomy of 2 ~ 4 times and three-dimensional moulding fixed again, still can guarantee that every bone section of incision has sufficient blood supply. The reconstructed mandible has good anti-infection and anti-load capacity, the fibula is used for repairing the defect of one side mandible to the defect of the complete half side mandible to obtain ideal appearance and function, and when the mandible lifting, the mandible angle and the chin are reconstructed, the bone flap can be fixed by a titanium plate or a steel wire after multi-section osteotomy shaping according to the requirement. Alan et al showed a significant reduction in blood supply to the distal end of the fibula flap following a second incision in the fibula in the animal test. Therefore, in the shaping of the jaw bone, the number of times of cutting the bone should be reduced as much as possible, and the connection between the periosteum and the muscle sleeve should be maintained during the bone cutting. The related teaching aid for the fibula is lacked in the prior art.

Disclosure of Invention

In order to solve the problem that the fibula osteotomy cannot be demonstrated, the invention provides an auxiliary fibula osteotomy tool for surgery.

The invention adopts the following technical scheme:

an auxiliary fibula osteotomy tool for operation comprises a fibula head part, a fibula body part and a lateral malleolus part which are connected in sequence;

the fibula body comprises a plurality of connecting short sections, and adjacent connecting short sections are connected through spherical joints;

the spherical joint comprises a sphere and a ball sleeve, one end of each connecting short section is provided with the sphere, the other end of each connecting short section is provided with the ball sleeve, and the sphere of one connecting short section and the ball sleeve of the other connecting short section are connected in a matched mode to form a pair of spherical pairs.

Preferably, one end of the connecting short piece is opened to form a first connecting cavity; the ball body is arranged in the first connecting cavity, and the ball sleeve can be arranged in the first connecting cavity and matched with the ball body.

Preferably, the ball body is arranged at the opening of the first connecting cavity through a ball head shaft, and the ball sleeve is in clearance fit with the first connecting cavity.

Preferably, the other end of the connecting short section is opened to form a second connecting cavity; the second connecting cavity comprises a piston and a rotating shaft, and the piston is movably matched with the second connecting cavity; the piston is connected with one end of the rotating shaft, and the other end of the rotating shaft extends out of the second connecting cavity to be connected with the ball sleeve.

Preferably, the second connecting cavity further comprises a piston rod; one end of the piston rod is connected with the piston, and the other end of the piston rod is hinged with the rotating shaft.

Preferably, the outlet of the second connecting cavity is provided with a baffle plate for preventing the piston from sliding out.

The invention has the following beneficial effects:

the auxiliary fibula osteotomy tool for the operation is manufactured into a fibula body with a plurality of sections of connecting short sections based on the structural shape of the fibula, and adjacent connecting short sections are connected through spherical joints; the spherical joint is matched and connected with the other spherical sleeve through the sphere to form a pair of spherical pairs. During specific use, the specific change process in the folding, intercepting and transplanting processes of the fibula can be performed in the clinical operation process of demonstration at any angle by rotating the two adjacent connecting short sections.

Drawings

FIG. 1 is a schematic view of an auxiliary fibula osteotomy tool for use in the surgery of example 1;

FIG. 2 is a schematic view of a fibula body;

FIG. 3 is a schematic internal view of the coupling sub;

FIG. 4 is a schematic view of a spherical joint;

reference numerals: 1. a fibular head; 2. a fibular body portion; 3. an outer ankle portion; 4. connecting short sections; 41. a first connection chamber; 42. a second connection chamber; 43. a sphere; 44. a ball end shaft; 45. a piston; 46. a piston rod; 47. a rotating shaft; 48. a ball sleeve; 49. and a baffle plate.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the auxiliary fibula osteotomy tool for operation is made of plastic or light metal or is formed by 3D printing, and is convenient to use in teaching.

The auxiliary fibula osteotomy tool for the operation comprises a fibula head part 1, a fibula body part 2 and a lateral malleolus part 3 which are sequentially connected, wherein the fibula body part 2 comprises a plurality of connecting short sections 4, and adjacent connecting short sections 4 are connected through spherical joints; the spherical joint comprises a sphere 43 and a ball sleeve 48, the sphere 43 is arranged at one end of the connecting short section 4, the ball sleeve 48 is arranged at the other end of the connecting short section 4, and the sphere 43 of one connecting short section 4 and the ball sleeve 48 of the other connecting short section 4 are connected in a matched mode to form a pair of spherical pairs.

During the specific use, can carry out the demonstration clinical operation in-process of arbitrary angle through rotating two adjacent connection nipple joints 4, the specific change process in fibula folding, intercepting, the transplantation process.

In a preferred embodiment, the coupling nipple 4 is open at one end to form a first coupling cavity 41; the ball 43 is arranged in the first connection chamber 41 and the ball socket 48 can be arranged in the first connection chamber 41 to cooperate with the ball 43. The ball 43 is arranged at the opening of the first connection chamber 41 via a ball pivot 44, and the ball socket 48 is a clearance fit with the first connection chamber 41. The structure enables the joints of the adjacent connecting short sections 4 to be hidden inside, and the rotating operation is performed inside the joints, so that the fibula structure can be truly simulated.

In a preferred embodiment, the other end of the coupling nipple 4 is opened to form a second coupling cavity 42; the second connecting cavity 42 comprises a piston 45 and a rotating shaft 47, and the piston 45 is movably matched with the second connecting cavity 42; the piston 45 is connected with one end of a rotating shaft 47, and the other end of the rotating shaft 47 extends out of the second connecting cavity 42 and is connected with a ball sleeve 48. Under the effect of piston, can realize two adjacent connection nipple joints 4 and pull out the demonstration, realize more demonstration effects through the ball joint effect.

In a preferred embodiment, the second connection chamber 42 further includes a piston rod 46 therein; one end of the piston rod 46 is connected to the piston 45, and the other end is hinged to the rotary shaft 47. The outlet of the second connecting chamber 42 is provided with a stop 49 preventing the piston 45 from sliding out. The piston rod 46 is hinged with the rotating shaft 47, so that the freedom degree of the joint of two adjacent connecting short joints 4 can be increased.

Specifically, when not in use, two adjacent connection nipples 4 can be pressed back to be locked by grooves and protrusions (schematic diagrams are not shown in the drawings) on the edges, so that a stable connection integrated structure is formed.

Examples

The embodiment is based on a fibula flap reconstruction mandible surgery technology and is used for demonstrating bone block design and demonstration during fibula osteotomy. The whole shape of this teaching aid is the same with the fibula, and whole length is 20cm, and 8 small sections of 2.5cm of split are connected nipple joint 4 again, link through spherical joint between every section of connection nipple joint 4. The spherical joint can be disassembled and rotated, so that specific changes in the folding, cutting and transplanting processes of the fibula in the clinical operation process can be conveniently demonstrated, and a clinician is helped to teach the bone cutting process.

The joints of the structure are movable joints, can slide in the segments through the grooves, each joint is provided with a rotating shaft, and when the joints are completely extended out, the joints can rotate to form an angle of 90 degrees with the rotating shafts.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims (6)

1. An auxiliary fibula osteotomy tool for operation is characterized by comprising a fibula head part (1), a fibula body part (2) and a lateral malleolus part (3) which are sequentially connected;

the fibula body (2) comprises a plurality of connecting short sections (4), and adjacent connecting short sections (4) are connected through spherical joints;

the spherical joint comprises a sphere (43) and a ball sleeve (48), wherein one end of each connecting short section (4) is provided with the sphere (43), the other end of each connecting short section is provided with the ball sleeve (48), and the sphere (43) of one connecting short section (4) is matched and connected with the ball sleeve (48) of the other connecting short section (4) to form a pair of spherical pairs.

2. An operation auxiliary fibula cutting tool according to claim 1, wherein the connecting short piece (4) is opened at one end to form a first connecting cavity (41); the ball (43) is arranged in the first connection chamber (41), and the ball sleeve (48) can be arranged in the first connection chamber (41) and is matched with the ball (43).

3. An auxiliary fibula osteotomy tool for surgery as in claim 2, wherein said ball (43) is disposed at the opening of the first connection cavity (41) by means of a ball head shaft (44), said ball sleeve (48) being a clearance fit with the first connection cavity (41).

4. A surgical auxiliary fibula cutting tool as claimed in claim 2, wherein the other end of the connecting nipple (4) is opened to form a second connecting cavity (42); the second connecting cavity (42) comprises a piston (45) and a rotating shaft (47), and the piston (45) is movably matched with the second connecting cavity (42); the piston (45) is connected with one end of the rotating shaft (47), and the other end of the rotating shaft (47) extends out of the second connecting cavity (42) to be connected with the ball sleeve (48).

5. An auxiliary fibula osteotomy tool for surgical use as in claim 4, further comprising a piston rod (46) within said second connecting cavity (42); one end of the piston rod (46) is connected with the piston (45), and the other end is hinged with the rotating shaft (47).

6. An auxiliary fibula osteotomy tool for surgery as in claim 4, wherein said second connecting cavity (42) is provided at its outlet with a stop (49) preventing the piston (45) from slipping out.

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