CN218606744U

CN218606744U - Perspective development positioning bone cutting guide plate

Info

Publication number: CN218606744U
Application number: CN202221899155.XU
Authority: CN
Inventors: 姬涛
Original assignee: Peking University Peoples Hospital
Current assignee: Peking University Peoples Hospital
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2023-03-14
Anticipated expiration: 2032-07-22

Abstract

The utility model relates to a perspective developing positioning bone cutting guide plate, which is provided with a developing structure capable of being positioned by perspective of a perspective device; the developing structure comprises a perspective angle correcting part vertically protruding out of the bone cutting guide plate and a characteristic position relation positioning part orthogonally arranged at 90 degrees with the perspective angle correcting part, and the perspective angle correcting part is used for angle correcting and positioning in front and back perspectives of the perspective equipment so as to ensure that the perspective equipment and the bone cutting guide plate are at an absolute 90 degrees; the characteristic position relationship locator is used for identifying the characteristic position relationship between the characteristic anatomical structure and the osteotomy position. The utility model discloses can calibrate with characteristic anatomical site according to developing structure, realize accurate bone baffle that cuts and place the position, and then realize cutting the accurate of relation between bone position and characteristic anatomical site and confirm, cut the bone for the back high accuracy and provide support and guarantee, finally implement the accurate bone of cutting.

Description

Perspective development positioning bone cutting guide plate

Technical Field

The utility model relates to a cut bone baffle, especially relate to a perspective development location cuts bone baffle, belong to medical instrument technical field.

Background

In the orthopedic clinical operation treatment, the osteotomy operation is one of the basic and important operations. The traditional osteotomy method is that an orthopedist roughly judges the position and the direction according to an anatomical reference object, and the osteotomy tools comprise a wire saw, a swinging saw, an osteotome and the like. However, as the precision requirement of the surgical operation is gradually increased, the traditional osteotomy method cannot meet the precision requirement, and the error is generally on the level of 1 cm. The navigation technology used in the existing orthopedic surgery can obviously improve the precision of the pre-operation position (the operation precision can be improved to 4-5 mm), and realizes the intraoperative positioning with higher precision, but because the equipment is expensive, the operations such as preoperative imaging examination, intraoperative registration and the like bring extra expense and time cost. With the emergence of 3D printing technology, can carry out three-dimensional modeling according to patient CT data before the art in order to customize individualized bone cutting baffle, at present research unanimously thinks that 3D printed individualized bone cutting baffle precision can stably be controlled and is about 2 mm. For complex deformities and tumor resections, this precision enables more precise osteotomy correction and bone tumor resection.

However, in the prior art, the problem that the bone cutting guide is matched to an accurate position in the operation is not solved well, the bone cutting guide is placed on the surface of the bone in the operation, the anatomical feature curved surface is used for matching, and the placing accuracy is seriously influenced by the soft tissue stripping degree and the bone surface feature degree in the operation. In order to improve the placement accuracy of the osteotomy guide plate, doctors also use a navigation technology in orthopedic surgery to assist the placement of the osteotomy guide plate, but the application and popularization of the osteotomy guide plate are limited due to the problems of high equipment cost, complex operation and the like, and the requirements of the actual clinical work of most orthopedic doctors are difficult to meet in the aspects of usability and usability.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a perspective development location cuts bone baffle.

In order to achieve the purpose, the utility model adopts the following technical proposal: a perspective development positioning bone cutting guide plate is provided with a development structure capable of being positioned in a perspective mode through perspective equipment.

The perspective developing positioning bone cutting guide plate is preferably a femur distal end bone cutting guide plate.

The perspective visualization positioning bone cutting guide plate preferably has a distal femur condyle positioning portion, an intercondylar notch positioning portion and a anterior femur condyle positioning portion respectively fitted with the distal femur condyle, the intercondylar notch and the anterior femur condyle.

The perspective developing positioning bone cutting guide plate is preferably provided with fixing holes suitable for fixing nails to penetrate through the bone cutting guide plate for temporary fixation on the distal positioning part of the femoral condyle, the intercondylar notch positioning part and the anterior positioning part of the femoral condyle.

The perspective developing positioning bone cutting guide plate is characterized in that preferably, the distal positioning part of the femoral condyle and the anterior positioning part of the femoral condyle are provided with transverse bone cutting grooves suitable for a bone cutting tool to pass through, and the intercondylar notch positioning part is provided with longitudinal bone cutting grooves suitable for the bone cutting tool to pass through.

The perspective visualization positioning bone cutting guide plate preferably comprises a perspective angle correcting part vertically protruding out of the femoral condyle anterior condyle positioning part and a characteristic position relation positioning part orthogonally arranged at 90 degrees with the perspective angle correcting part, wherein the perspective angle correcting part is used for correcting and positioning the angle in front and back perspective of perspective equipment so as to ensure that the perspective equipment and the femoral distal bone cutting guide plate are in an absolute 90 degree angle; the characteristic position relationship locator is used for identifying the characteristic position relationship between the characteristic anatomical structure and the osteotomy position.

The perspective developing positioning bone cutting guide plate is preferably a C-shaped arm or a G-shaped arm.

The perspective visualization positioning bone cutting guide plate is preferably provided with a visualization structure which is a metal wire or a metal rod.

The perspective visualization positioning bone cutting guide preferably includes, but is not limited to, an articular surface, a femoral condyle, or an acetabulum.

The perspective visualization positioning bone cutting guide plate preferably has the characteristic position relation including but not limited to the distance and the angle between the bone cutting position and a certain characteristic anatomical structure.

The utility model discloses owing to take above technical scheme, it has following advantage:

the utility model discloses to individuation cut bone baffle and placed the problem of the degree of accuracy, added the development structure that can pass through C shape arm or G shape arm perspective location in individuation cuts bone baffle design, according to developing structure and characteristic anatomical position and calibrating, realize that accurate cut bone baffle places the position, and then realize cutting the accurate of bone position and characteristic anatomical position relation and confirm, cut the bone for the back high accuracy and provide support and guarantee, finally implement accurate bone.

Drawings

Fig. 1 is a schematic structural view of a bone cutting guide according to an embodiment of the present invention at a first viewing angle;

FIG. 2 is a schematic view of the osteotomy guide of the present invention at a second viewing angle;

fig. 3 is a state diagram of the osteotomy guide provided by the present invention under an intraoperative fluoroscopy apparatus.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "assembled", "disposed" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a perspective developing positioning bone cutting guide plate, which is provided with a developing structure capable of being positioned by perspective of a perspective device; the developing structure comprises a perspective angle correcting part vertically protruding out of the bone cutting guide plate and a characteristic position relation positioning part orthogonally arranged at 90 degrees with the perspective angle correcting part, and the perspective angle correcting part is used for correcting and positioning the angle in front and back perspective of the perspective equipment so as to ensure that the perspective equipment and the bone cutting guide plate are at an absolute 90 degrees; the characteristic position relation positioning piece is used for marking the characteristic position relation between the characteristic anatomical structure capable of being positioned and the osteotomy position. The utility model discloses can be based on developing structure and characteristic anatomical site and calibrate, realize accurate cut bone baffle and place the position, and then realize cutting the accurate of relation between bone position and characteristic anatomical site and confirm, cut the bone for the back needs the high accuracy and provide support and guarantee, finally implement accurate bone.

The perspective visualization positioning bone cutting guide provided by the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the perspective visualization positioning bone cutting guide plate provided by the embodiment of the present invention is a femur distal end bone cutting guide plate, which has a femur condyle distal end positioning portion 1, a condyle notch positioning portion 2 and a femur condyle anterior condyle positioning portion 3 respectively fitted with a femur condyle distal end, a femur condyle anterior condyle and a femur condyle distal end, a fixation hole 6 suitable for a fixation nail to pass through the bone cutting guide plate for temporary fixation is provided on the femur condyle distal end positioning portion 1, the condyle notch positioning portion 2 and the femur condyle anterior condyle positioning portion 3, a transverse bone cutting groove 4 suitable for a bone cutting tool (such as a saw blade of an electric saw) to pass through is provided on the femur condyle distal end positioning portion 1 and the femur condyle anterior condyle positioning portion 3, and a longitudinal bone cutting groove 5 suitable for the bone cutting tool to pass through is provided on the condyle distal end positioning portion 2. The developing structure comprises a perspective angle correcting part 7 vertically protruding out of the femoral condyle anterior condyle positioning part 3 and a characteristic position relation positioning part 8 orthogonally arranged at 90 degrees with the perspective angle correcting part 7, wherein the perspective angle correcting part 7 is used for angle correcting and positioning in the anteroposterior perspective of the perspective device so as to ensure that the perspective device and the osteotomy guide plate are at an absolute 90 degree (at the moment, the perspective angle correcting column 7 is a point in the anteroposterior perspective). The characteristic positional relationship locator 8 is used to identify the characteristic positional relationship of the positionable characteristic anatomical structure to the osteotomy position.

In the above embodiments, the shape, contour, etc. of the developing structure may be designed according to the requirement, including but not limited to any shape such as a strip, a wire, etc., for example, the developing structure may be a metal wire or a metal rod.

In the above embodiments, the fluoroscopy device is preferably a C-arm or a G-arm, which is most widely used in orthopedic clinics.

In the above embodiments, the positionable feature anatomy preferably includes, but is not limited to, an articular surface, a femoral condyle, or an acetabulum.

In the above embodiments, the characteristic positional relationship preferably includes, but is not limited to, a distance and an angle between the osteotomy position and a certain characteristic anatomical structure.

Fig. 3 shows an application example of the distal femur osteotomy guide, in which the distance between the transverse osteotomy groove and the distal femur bone edge is 23mm, so that the distal end of the transverse osteotomy line is aligned with the femoral condyle edge, and the transverse osteotomy line can be accurately positioned at the distance of 23mm, thereby improving the placement accuracy of the osteotomy guide and providing support and guarantee for high-accuracy posterior osteotomy.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A perspective developing positioning bone cutting guide plate is characterized in that a developing structure capable of being positioned in a perspective manner through a perspective device is arranged on the bone cutting guide plate;

the bone cutting guide plate is a femur far-end bone cutting guide plate, the femur far-end bone cutting guide plate is provided with a femur condyle far-end positioning part, an intercondylar notch positioning part and a femur condyle front condyle positioning part which are respectively jointed with the femur condyle far end, the intercondylar notch and the femur condyle front condyle, and fixing holes suitable for fixing nails to penetrate through the bone cutting guide plate for temporary fixing are formed in the femur condyle far-end positioning part, the intercondylar notch positioning part and the femur condyle front condyle positioning part;

the developing structure comprises a perspective angle correcting part vertically protruding out of the positioning part of the femoral condyle anterior condyle and a characteristic position relation positioning part orthogonally arranged at 90 degrees with the perspective angle correcting part, wherein the perspective angle correcting part is used for correcting and positioning the angle under the front and back perspective of a perspective device so as to ensure that the perspective device and the femoral distal osteotomy guide plate are in an absolute 90 degree angle; the characteristic position relation positioning piece is used for identifying the characteristic position relation between the characteristic anatomical structure capable of being positioned and the osteotomy position.

2. The perspective visualization positioning bone cutting guide plate as claimed in claim 1, wherein the distal positioning portion of the femoral condyle and the anterior positioning portion of the femoral condyle are provided with transverse bone cutting grooves suitable for the bone cutting tool to pass through, and the intercondylar notch positioning portion is provided with longitudinal bone cutting grooves suitable for the bone cutting tool to pass through.

3. The see-through visualization positioning bone-cutting guide of claim 1, wherein the see-through device is a C-arm or a G-arm.

4. The perspective visualization positioning bone-cutting guide of claim 1, wherein the visualization structure is a wire or a metal rod.

5. The perspective visualization positioning bone cut guide of claim 1, wherein the positionable feature comprises an articular surface, a femoral condyle, or an acetabulum.

6. The perspective visualization positioning osteotomy guide of claim 1, wherein said characteristic positional relationship comprises a distance and an angle between an osteotomy position and a positionable characteristic anatomical structure.