CN212939862U

CN212939862U - Hallux valgus osteotomy guider

Info

Publication number: CN212939862U
Application number: CN202020810016.XU
Authority: CN
Inventors: 吴磊
Original assignee: Beijing Haidian Hospital
Current assignee: Beijing Haidian Hospital
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-04-13
Anticipated expiration: 2030-05-15

Abstract

A hallux valgus osteotomy guide, comprising: the guide device comprises a guide device panel, a guide device body panel and a guide device body panel, wherein the guide device panel is a fan-shaped stainless steel plate, and the surface of the guide device panel is provided with 1 metatarsal distal end fixing hole, 15 metatarsal proximal end fixing holes and 1 osteotomy groove; the metatarsal distal end fixing hole is a circular hole channel positioned at the central angle of the sector guider, and the hole channel vertically penetrates through the guider; the metatarsal proximal end fixing hole is a circular pore canal positioned in the circular arc of the sector guider, and the included angle formed by two adjacent proximal end fixing holes and a distal end fixing hole is 2 degrees; the osteotomy groove is a linear pore canal and is positioned between the distal metatarsal fixing hole and the 8 th proximal metatarsal fixing hole, the pore canal vertically penetrates through the guider and can be used for placing an oscillating saw. The utility model discloses the degree of accuracy is high, has avoided bare-handed operation's inaccuracy, and the simultaneous operation is simple and convenient, has shortened the operation time, especially to the case that needs long oblique line to cut the bone, has improved the security and the accuracy of cutting the bone operation.

Description

Hallux valgus osteotomy guider

Technical Field

The utility model relates to an orthopedic medical instrument, in particular to a guider applied to osteotomy operation in hallux valgus operation.

Background

The osteotomy is an important operation in the hallux valgus operation, and the quality of the osteotomy reflects the quality of the operation. In order to prevent non-union after osteotomy and metatarsal head necrosis, surgeons prefer to choose long oblique osteotomy, which puts higher demands on the precision of osteotomy.

The precision of manual bone cutting is too low, iatrogenic injuries are easily caused, and the most concerned topic of surgeons is how to improve the bone cutting quality and avoid errors. The existing osteotomy guide has the following problems: firstly, the osteotomy mode is single, and only the osteotomy operation with a fixed angle can be provided; secondly, the fault tolerance is poor, and the unsatisfactory positioning operation can be only carried out from new positioning, and small adjustment cannot be carried out; neglecting the importance of the thickness of the guider, and having poor guidance performance to the saw blade during osteotomy; and fourthly, the sighting device is complex to operate and poor in practicability.

Disclosure of Invention

The utility model aims at providing a hallux valgus osteotomy guider, which aims to solve the technical problems of accuracy, safety and operability in osteotomy operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hallux valgus osteotomy guide, comprising: the guide device comprises a guide device panel, a guide device body panel and a guide device body panel, wherein the guide device panel is a fan-shaped stainless steel plate, and the surface of the guide device panel is provided with 1 metatarsal distal end fixing hole, 15 metatarsal proximal end fixing holes and 1 osteotomy groove; the metatarsal distal end fixing hole is a circular hole channel positioned at the central angle of the sector guider, and the hole channel vertically penetrates through the guider; the metatarsal proximal end fixing hole is a circular pore canal positioned in the circular arc of the sector guider, and the included angle formed by two adjacent proximal end fixing holes and a distal end fixing hole is 2 degrees; the osteotomy groove is a linear pore canal and is positioned between the distal metatarsal fixing hole and the 8 th proximal metatarsal fixing hole, the pore canal vertically penetrates through the guider and can be used for placing an oscillating saw.

Preferably, the diameters of the distal metatarsal bone fixing hole (2) and the proximal metatarsal bone fixing hole (3) are 0.1-0.2 mm larger than the diameter of the Kirschner wire (6).

Preferably, the diameter of the Kirschner wire (6) is 1.0 mm.

Preferably, the diameters of the distal metatarsal bone fixing hole (2) and the proximal metatarsal bone fixing hole (3) are 1.1-1.2 mm.

Preferably, the two adjacent metatarsal proximal fixing holes (3) and the metatarsal distal fixing holes (2) form an included angle of 2 °.

Preferably, all the metatarsal proximal fixing holes (3) are 50mm away from the metatarsal distal fixing holes (2).

Preferably, the osteotomy groove (4) has a length of 46mm and a width of 1 mm.

Preferably, the distance between the distal metatarsal fixing hole (2) and the distance between the proximal metatarsal fixing hole (3) and the osteotomy groove (4) are both 2 mm.

Preferably, the thickness of the guide is 5 mm.

Compared with the prior art the utility model has the following characteristics and beneficial effect:

the utility model relates to a simple operation, the high director of the degree of accuracy can improve the accuracy and the security of osteotomy operation in the hallux valgus operation of orthopedics.

Use the utility model discloses, standardized the operation, improved the operation degree of accuracy, shortened the operation time, improved the security and the success rate of cutting the bone operation.

The utility model discloses use under the help of aiming equipment, just can improve and cut the bone quality, avoid iatrogenic nature damage.

Use when cutting the bone operation in hallux valgus operation the utility model discloses, compare with "bare-handed operation" and other osteotomy director, have following advantage: the operation mode is flexible, and the osteotomy angle can be adjusted according to the needs in the operation; good fault tolerance, and small adjustment can be carried out on unsatisfactory positioning operation; the importance of the thickness of the guider is fully considered, and the guiding performance to the saw blade is good during osteotomy; and fourthly, the sighting device is simple to operate and high in practicability.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic view of the present invention in use with a first metatarsal.

Reference numerals: 1-guide panel, 2-metatarsal distal fixing hole, 3-metatarsal proximal fixing hole, 4-osteotomy groove, 5-metatarsal, 6-kirschner wire and 7-osteotomy saw blade.

Detailed Description

Referring to fig. 1-2, the hallux valgus osteotomy guide comprises:

director panel 1, 1 material of director panel is stainless steel, possesses good hardness and intensity, has non-deformable, corrosion-resistant, advantage that the accuracy is high, can disinfect under high temperature and high pressure with other metal apparatus for orthopedic operation together, and its shape is fan-shaped, and thickness is 5 mm.

The distal metatarsal fixing hole 2 is a circular hole, and a Kirschner wire 6 is inserted into the distal metatarsal fixing hole 2; the outer diameter of the distal metatarsal fixing hole 2 is generally 1.1mm to 1.2mm, preferably 1.1 mm.

The metatarsal proximal end fixing hole 3 is a circular hole, and a Kirschner wire 6 is inserted into the metatarsal proximal end fixing hole 3; the outer diameter of the metatarsal proximal end fixing hole 3 is generally 1.1 cm-1.2 cm, preferably 1.1cm, the included angle between two adjacent metatarsal proximal end fixing holes 3 and the metatarsal distal end fixing hole 2 is 2 degrees, and all the metatarsal proximal end fixing holes 3 are 50mm away from the metatarsal distal end fixing hole 2.

The osteotomy groove 3 is a linear pore canal, the length of the osteotomy groove 3 is 46mm, the width of the osteotomy groove is 1mm, and the osteotomy saw blade 7 can be inserted into the linear pore canal.

The utility model discloses a working process:

1. when the hallux valgus operation needs to cut bones, marking the far-end positioning point of a osteotomy line on the side surface of the metatarsus, driving a kirschner wire into the osteotomy plane according to the direction of the osteotomy plane, penetrating the kirschner wire through the metatarsus far-end fixing hole of the guider, determining the direction of the osteotomy line according to the principle that two points determine a straight line, and driving the kirschner wire into the metatarsus near-end fixing hole for fixing.

2. Judging whether the osteotomy groove is consistent with the predicted osteotomy direction, if so, inserting an oscillating saw into the osteotomy groove to perform osteotomy operation, if not, taking out the proximal Kirschner wire from the proximal metatarsal bone fixing hole, taking the distal metatarsal bone Kirschner wire as the center, rotating the osteotomy guider to keep the osteotomy groove consistent with the predicted osteotomy direction, driving the distal metatarsal bone Kirschner wire into the osteotomy guide, and then performing osteotomy operation.

Claims

1. A hallux valgus osteotomy guide, comprising:

the guide device comprises a guide device panel (1), wherein the guide device panel (1) is a fan-shaped stainless steel plate;

the distal metatarsal fixing hole (2) is 1 circular hole for inserting a Kirschner wire (6);

the metatarsal proximal end fixing hole (3) is 15 circular hole channels for inserting a Kirschner wire (6);

the bone cutting groove (4) is provided with 1 linear pore channel for inserting a bone cutting saw blade (7).

2. The hallux valgus osteotomy guide of claim 1, wherein: the surface of the guider panel (1) is provided with 1 metatarsal far-end fixing hole (2), 15 metatarsal near-end fixing holes (3) and 1 osteotomy groove (4).

3. The hallux valgus osteotomy guide of claim 1, wherein: the diameters of the distal metatarsal fixing hole (2) and the proximal metatarsal fixing hole (3) are 0.1-0.2 mm larger than that of the Kirschner wire (6).

4. The hallux valgus osteotomy guide of claim 1, wherein: the diameter of the Kirschner wire (6) is 1.0 mm.

5. The hallux valgus osteotomy guide of claim 1, wherein: the diameters of the metatarsal distal end fixing hole (2) and the metatarsal proximal end fixing hole (3) are 1.1-1.2 mm.

6. The hallux valgus osteotomy guide of claim 1, wherein: the included angle formed by the two adjacent metatarsal proximal end fixing holes (3) and the metatarsal distal end fixing holes (2) is 2 degrees.

7. The hallux valgus osteotomy guide of claim 1, wherein: all the metatarsal proximal end fixing holes (3) are 50mm away from the metatarsal distal end fixing holes (2).

8. The hallux valgus osteotomy guide of claim 1, wherein: the length of the osteotomy groove (4) is 46mm, and the width thereof is 1 mm.

9. The hallux valgus osteotomy guide of claim 1, wherein: the distance between the distal metatarsal fixing hole (2) and the proximal metatarsal fixing hole (3) and the osteotomy groove (4) is 2 mm.

10. The hallux valgus osteotomy guide of claim 1, wherein: the thickness of the guide is 5 mm.