CN216148134U

CN216148134U - Novel hallux valgus minimally invasive osteotomy guide plate

Info

Publication number: CN216148134U
Application number: CN202122234797.XU
Authority: CN
Inventors: 魏宝富; 钟国栋; 荣凯
Original assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Current assignee: Shandong Provincial Hospital Affiliated to Shandong First Medical University
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-04-01
Anticipated expiration: 2031-09-15

Abstract

The utility model relates to a novel hallux valgus minimally invasive osteotomy guide plate, which comprises: the horizontal part is connected with a handle, and the surface of the horizontal part is provided with a bone cutting groove, a far-end fixing hole and a near-end fixing hole; the miniature saw blade cuts bones through the horizontal bone cutting groove, the first supporting arm and the second supporting arm are respectively inserted into the back side and the metatarsal side of the metatarsal neck through the incision, and the skin is blocked outside the bone cutting line by the first supporting arm and the second supporting arm, so that the saw blade is prevented from damaging the surrounding skin soft tissues during bone cutting, the bones are cut along the bone cutting groove, the surrounding soft tissues can be protected during bone cutting, minimally invasive accurate bone cutting is realized, and the three-dimensional deformity correction device can be used for minimally invasive surgery and open surgery.

Description

Novel hallux valgus minimally invasive osteotomy guide plate

Technical Field

The utility model relates to the field of medical instruments, in particular to a novel hallux valgus minimally invasive osteotomy guide plate which is specially used for mild and moderate hallux valgus osteotomy orthopedic surgery, is mainly used for minimally invasive surgery, realizes accurate minimally invasive osteotomy and three-dimensional orthopedic surgery, and can also be used for limited osteotomy.

Background

Hallux valgus is the most common foot deformity of middle-aged and elderly women, great inconvenience is brought to wearing shoes and daily life of the women, and various treatment methods of hallux valgus are available, such as metatarsophalangeal joint fusion, proximal metatarsal trunk osteotomy, metatarsal trunk osteotomy and distal metatarsal osteotomy, and the treatment methods of the hallux valgus can correct the moderate and severe hallux valgus deformity but have large operation wound, long postoperative recovery time, more complications and the like; the minimally invasive osteotomy for treating mild and moderate hallux valgus deformity is favored by patients at home and abroad, but the minimally invasive osteotomy has the defects of large damage to peripheral soft tissues during osteotomy due to small incision, difficult grasp of osteotomy surface, metatarsal shortening after osteotomy, poor control of distal metatarsal head position, easy occurrence of complications such as relapse, unhealed osteotomy, metastatic metatarsal pain and the like, and the purpose of rapidly and accurately osteotomy and no damage to the peripheral soft tissues is difficult to realize in the minimally invasive osteotomy.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a novel hallux valgus minimally invasive osteotomy guide plate which is used for solving the problem of how to realize minimally invasive and accurate osteotomy of hallux valgus deformity.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a novel hallux valgus minimally invasive osteotomy guide plate comprises: the bone cutting device comprises a handle and a horizontal part, wherein a bone cutting groove is formed in the horizontal part, a near-end fixing hole and a far-end fixing hole are formed in the near end and the far end of the bone cutting groove on the horizontal part respectively, and a first supporting arm and a second supporting arm are arranged at the two ends of one side of the handle respectively.

Preferably, the horizontal part and the first and second support arms are connected to form a U-shaped structure.

Preferably, the proximal fixing hole is used for connecting the handle or placing a kirschner wire, and the distal fixing hole is used for placing the kirschner wire.

Preferably, the osteotomy groove is perpendicular to the metatarsal trunk, and in sagittal position, the osteotomy groove forms an angle of 8-12 degrees with the longitudinal axis of the metatarsal trunk from the distal dorsal side to the proximal metatarsal side.

Preferably, the handle comprises: the handle comprises a handle holding part and a handle connecting part, wherein the handle holding part is fixedly connected with the handle connecting part, and the handle connecting part is detachably mounted on the near-end fixing hole.

Preferably, the handle, the horizontal part, the first support arm and the second support arm are all made of stainless steel materials.

Preferably, longitudinal sections of the first support arm and the second support arm are in an inverted triangle shape.

Preferably, the first support arm and the second support arm are respectively installed at the left end and the right end of the lower side of the horizontal part, the first support arm is fixedly connected with the horizontal part, the second support arm is slidably connected with the horizontal part, and the hallux valgus minimally invasive osteotomy guide plate further comprises: an auxiliary fixing device;

the auxiliary fixing device is detachably mounted on the side walls of the first support arm and the second support arm, and comprises: a first connecting rod and a second connecting rod;

the two first connecting rods are in a barb shape and are respectively installed on the side wall of the first supporting arm at intervals in the front-back direction, a group of first through holes are formed in the side surface of the first supporting arm, the first connecting rods are installed in the first through holes, and the other ends of the first connecting rods are fixedly connected with first limiting tables;

the two second connecting rods are in a barb shape and are respectively installed on the side wall of the second supporting arm at intervals in the front-back direction, a group of second through holes are formed in the side surface of the second supporting arm, the second connecting rods are installed in the second through holes, and the other ends of the second connecting rods are fixedly connected with second limiting tables;

and the telescopic connecting piece is respectively connected with the second limit table and the first limit table.

Preferably, the telescopic link comprises: the first limiting table is close to one side of the second limiting table and connected with a group of telescopic rods, and the other end of each telescopic rod is connected to the second limiting table.

Drawings

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

FIG. 2 is a top view of the horizontal portion of the present invention;

FIG. 3 is a schematic diagram illustrating the operation of the present invention;

FIG. 4 is a front view of one embodiment of the present invention with an auxiliary fixture;

fig. 5 is a perspective view of the auxiliary fixture of the present invention.

In the figure: 1. a handle; 101. a handle grip; 102. a handle connecting portion; 2. a horizontal portion; 201. a osteotomy slot; 202. a proximal fixation hole; 203. a distal fixation hole; 3. a first support arm; 4. a second support arm; 5. a first connecting rod; 6. a second connecting rod; 7. a first limit table; 8. a second limit table; 9. a first telescopic rod.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

The utility model provides the following examples

Example 1

The embodiment of the utility model provides a novel hallux valgus minimally invasive bone cutting guide plate, which is shown in figures 1-4 and comprises: handle 1, horizontal part 2, osteotomy groove 201 has been seted up on the horizontal part 2, it sets up near-end fixed orifices 202 and distal end fixed orifices 203 respectively to lie in osteotomy groove 201 near-end and distal end on the horizontal part 2, horizontal part 2 deviates from the both ends punishment of one side of handle 1 is provided with first support arm 3 and second support arm 4 respectively.

The horizontal part 2, the first supporting arm 3 and the second supporting arm 4 are connected to form a U-shaped structure.

The proximal fixing hole 202 is used for connecting the handle 1 or placing a kirschner wire, and the distal fixing hole 203 is used for placing the kirschner wire, and can be used for rotating metatarsal heads and pushing the metatarsal heads outwards besides fixing the bone cutting guide plate.

The osteotomy groove 201 is perpendicular to the metatarsal trunk, and in the sagittal position, the osteotomy groove 201 forms an angle of 8-12 degrees with the longitudinal axis of the metatarsal trunk from the far dorsal side to the near metatarsal side.

The handle 1 includes: the handle comprises a handle holding part 101 and a handle connecting part 102, wherein the handle holding part 101 is fixedly connected with the handle connecting part 102, and the handle connecting part 102 is detachably arranged on the near-end fixing hole 202.

The handle 1, the horizontal part 2, the first supporting arm 3 and the second supporting arm 4 are all made of stainless steel materials.

The working principle of the technical scheme is as follows: the patient lies on the back on the hand bench with the tiptoe upward and a 1cm long longitudinal incision is made at the center of the inner side of the metatarsal neck, and then the patient is sequentially incised to the periosteum and separated along the surface of the periosteum towards the metatarsal side and the dorsal side. The operator holds the handle 1 to place the U-shaped osteotomy guide plate inside the metatarsal neck in the incision, and the first support arm 3 and the second support arm 4 are inserted into the dorsal and the plantar sides of the metatarsal neck tightly against the metatarsal bones. The adjustment horizontal portion 2 determines the position of the osteotomy line, which is determined by the C-arm perspective. Two kirschner wires are used for fixing the horizontal part 2 through the far-end fixing hole 203 and the near-end fixing hole 202, the miniature oscillating saw is vertically inserted through the osteotomy groove 201 for osteotomy, the fixed kirschner wires at the near end are removed, the U-shaped osteotomy guide plate is taken out, and the fixed kirschner wires at the far end are reserved.

The thin bone knife pries the osteotomy end to loosen the soft tissue on the outer side, the assistant assists in inverting the big toe, the operator rotates the distal Kirschner wire to correct the pronation deformity of the metatarsal heads, the reduction forceps clamp the first metatarsal head and the second metatarsal head, and the first metatarsal head is pushed towards the outer side; after the correction position is satisfied, fixing the osteotomy end by a percutaneous kirschner wire or a guide wire at the proximal end of the metatarsus; c-arm fluoroscopy is performed again, the metatarsal osteotomy orthopedic position is confirmed to be satisfied, the fixation is reliable, and a kirschner wire fixed at the far end is removed; bending and shearing off the percutaneous fixing kirschner wire, or replacing a hollow screw for fixing through a guide wire; removing the bone protruding from the inner side of the osteotomy end by a miniature oscillating saw, flushing the incision with physiological saline, suturing the skin, and performing pressure dressing at the middle position of the thumb.

The beneficial effects of the above technical scheme are that: the utility model has simple and convenient operation, the operator holds the handle 1 to place the U-shaped osteotomy guide plate at the inner side of the metatarsal neck in the incision, the osteotomy part is adjusted by the horizontal part 2, after the osteotomy part is determined, the kirschner wire can be inserted into the distal end fixing hole 203 and the proximal end fixing hole 202 to fix the part for operation, then the miniature oscillating saw is vertically inserted through the osteotomy groove 201 to perform osteotomy, the supporting arm separates the skin edge from the osteotomy groove to protect the surrounding skin soft tissue, the soft tissue is slightly damaged without metatarsal shortening, and the osteotomy position can be adjusted by the horizontal part, so that the osteotomy is accurate, three-dimensional orthopedic, time-saving and labor-saving, the clinical curative effect is stable and reliable, and the U-shaped osteotomy guide plate is made of stainless steel materials, can be washed and autoclaved and can be repeatedly used.

The miniature swing saw cuts bones accurately through the bone cutting groove, and metatarsal shortening is reduced; the metatarsal heads rotate in the process of being pushed outwards, so that the purposes of correcting deformity and quickly recovering three-dimensional are achieved.

Example 2

In addition to the embodiment 1, the longitudinal sections of the first support arm 3 and the second support arm 4 are inverted triangular.

The beneficial effects of the above technical scheme are: the first supporting arm 3 and the second supporting arm 4 at the lower end of the U-shaped osteotomy guide plate are inverted triangles, the surgical wound surface is small, and the postoperative osteotomy is fast in healing.

Example 3

In addition to the above embodiment 1, as shown in fig. 5, the first support arm 3 and the second support arm 4 are respectively installed at the left and right ends of the lower side of the horizontal portion 2, the first support arm 3 is fixedly connected with the horizontal portion 2, the second support arm 4 is slidably connected with the horizontal portion 2, and the hallux valgus minimally invasive bone cutting guide further comprises: an auxiliary fixing device;

the auxiliary fixing device is detachably mounted on the side walls of the first support arm 3 and the second support arm 4, and the auxiliary fixing device includes: a first connecting rod 5 and a second connecting rod 6;

the two first connecting rods 5 are in a barb shape and are respectively installed on the side wall of the first supporting arm 3 at intervals in the front-back direction, a group of first through holes are formed in the side surface of the first supporting arm 3, the first connecting rods 5 are installed in the first through holes, and the other end of each first connecting rod 5 is fixedly connected with a first limiting table 7;

the two second connecting rods 6 are in a barb shape and are respectively arranged on the side wall of the second supporting arm 4 at intervals in the front-back direction, a group of second through holes are formed in the side surface of the second supporting arm 4, the second connecting rods 6 are arranged in the second through holes, and the other end of each second connecting rod 6 is fixedly connected with a second limiting table 8;

and the telescopic connecting piece is respectively connected with the second limit table 8 and the first limit table 7.

The telescopic connection piece comprises: the first limiting table 7 is close to one side of the second limiting table 8 and is connected with a group of telescopic rods 9, and the other end of each telescopic rod 9 is connected to the second limiting table 8.

The working principle of the technical scheme is as follows: in the operation process, if meet the thumb when turning up more serious patient, can install supplementary fixing device on the side of U-shaped cuts bone conduction board, at first find the through-hole on first support arm 3, then install first connecting rod 5 on the through-hole, then install second connecting rod 6 on second support arm 4 with same step, then through telescopic link 9, can drive the position that changes first spacing platform 7 and second spacing platform 8, can guarantee supplementary fixing device's stability.

The beneficial effects of the above technical scheme are that: supplementary fixing device installation is simple, installs head rod 5 and second connecting rod 6 respectively on first support arm 3 and second support arm 4, then the position of adjustment telescopic link 9 can change the distance between first spacing platform 7 and the spacing platform 8 of second, consequently can adapt to different patients' the degree of sickening, in the use, the change that can be comparatively light needs fixed interval, and fixed back effect is stable, the operation of being convenient for.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A novel hallux valgus minimally invasive osteotomy guide plate is characterized by comprising: handle (1), horizontal part (2), osteotomy groove (201) have been seted up on horizontal part (2), it sets up near-end fixed orifices (202) and distal end fixed orifices (203) respectively to lie in osteotomy groove (201) near-end and distal end on horizontal part (2), horizontal part (2) deviate from the both ends punishment of one side of handle (1) is provided with first support arm (3) and second support arm (4) respectively.

2. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: the horizontal part (2) is connected with the first supporting arm (3) and the second supporting arm (4) to form a U-shaped structure.

3. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: the proximal fixing hole (202) is used for connecting the handle (1) or placing a Kirschner wire, and the distal fixing hole (203) is placed in the Kirschner wire.

4. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: the osteotomy groove (201) is perpendicular to the metatarsal trunk, and in the sagittal position, the osteotomy groove (201) forms an included angle of 8-12 degrees with the longitudinal axis of the metatarsal trunk from the far dorsal side to the near metatarsal side.

5. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 3, wherein: the handle (1) comprises: the handle comprises a handle handheld portion (101) and a handle connecting portion (102), wherein the handle handheld portion (101) is fixedly connected with the handle connecting portion (102), and the handle connecting portion (102) is detachably mounted on the near-end fixing hole (202).

6. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: the handle (1), the horizontal part (2), the first supporting arm (3) and the second supporting arm (4) are all made of stainless steel materials.

7. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: the longitudinal sections of the first supporting arm (3) and the second supporting arm (4) are in an inverted triangle shape.

8. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 1, wherein: first support arm (3) with both ends about horizontal part (2) downside are installed respectively to second support arm (4), first support arm (3) and horizontal part (2) fixed connection, second support arm (4) with horizontal part (2) sliding connection, the minimal-invasive bone-cutting baffle of hallux valgus still includes: an auxiliary fixing device;

the auxiliary fixing device is detachably mounted on the side walls of the first support arm (3) and the second support arm (4), and comprises: a first connecting rod (5) and a second connecting rod (6);

the two first connecting rods (5) are in a barb shape and are respectively installed on the side wall of the first supporting arm (3) at intervals in the front-back direction, a group of first through holes are formed in the side surface of the first supporting arm (3), the first connecting rods (5) are installed in the first through holes, and the other end of each first connecting rod (5) is fixedly connected with a first limiting table (7);

the two second connecting rods (6) are in a barb shape and are respectively arranged on the side wall of the second supporting arm (4) at intervals in the front-back direction, a group of second through holes are formed in the side surface of the second supporting arm (4), the second connecting rods (6) are arranged in the second through holes, and the other ends of the second connecting rods (6) are fixedly connected with second limiting tables (8);

and the telescopic connecting piece is respectively connected with the second limiting table (8) and the first limiting table (7).

9. A novel hallux valgus minimally invasive osteotomy guide as claimed in claim 8, wherein:

the telescopic connection piece comprises: the first limiting table (7) is close to one side of the second limiting table (8) and is connected with a group of telescopic rods (9), and the other end of each telescopic rod (9) is connected to the second limiting table (8).