CN217660305U

CN217660305U - Auxiliary knee joint prosthesis implantation condylar measuring instrument

Info

Publication number: CN217660305U
Application number: CN202220269210.0U
Authority: CN
Inventors: 高建华; 高立华; 刘海波; 尤屹东; 陈志超
Original assignee: Changzhou Huazhong Biotechnology Co ltd
Current assignee: Changzhou Huazhong Biotechnology Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-10-28
Anticipated expiration: 2032-02-10

Abstract

The utility model discloses a supplementary knee joint prosthesis implantation survey condyle apparatus contains survey condyle base, survey condyle base both sides are provided with the location arm, the top of location arm is provided with the chute, the location arm end is provided with the locating hole, be provided with the screw hole in the middle of surveying the condyle base, the top fixedly connected with survey condyle sliding column of survey condyle base, the top of surveying the condyle sliding column is provided with the joint, the rear of joint is provided with the survey needle, the below of surveying the condyle sliding column is provided with spacing post, the below of surveying the condyle base is provided with the outer sliding column of revolving, the below of outer sliding column of revolving is provided with the outer slider, the below of outer slider of revolving is provided with the external tightening set screw, the below fixed mounting of outer condyle slider of revolving has survey condyle to hold in the palm, the place ahead of surveying the condyle support is provided with the back condyle, the place ahead of back condyle is provided with in the thighbone, be provided with the anterior spinous process in the place ahead of thighbone, the utility model discloses, convenient high-efficient convenient operation function has been realized.

Description

Auxiliary knee joint prosthesis implantation condylar measuring instrument

Technical Field

The utility model discloses be applied to the medical instrument background, the name is a survey condyle instrument of supplementary knee joint prosthesis implantation.

Background

The human knee joint is formed by a femur, a tibia and a patella, and a meniscus is arranged between the femur and the tibia. The distal femur has a slideway adapted to receive the patella, and the surfaces of these joints are covered with cartilage to absorb shock and stress. Cartilage is the most vulnerable part of a human body during movement, joint pain and dysfunction can be caused once joints are damaged, joint function can be effectively reconstructed through artificial joint replacement, and life quality of patients is improved

However, femoral condylar prostheses are part of artificial knee arthroplasty, and because the femur of each patient varies in size, they are typically designed with a variety of gauge sizes to match the needs of most patients. In the operation, the measurement of the femoral condyle is needed to determine the specification of the femoral condyle prosthesis, but in the artificial knee joint replacement, the size of the femoral condyle prosthesis is needed to be determined, and the implantation position is also very important.

Therefore, it is necessary to provide a condylar measuring instrument for assisting in implanting a knee joint prosthesis, which can achieve the effect of convenient operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a survey condyle instrument of supplementary knee joint prosthesis implantation to solve the problem that provides among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the condyle measuring instrument for assisting implantation of the knee joint prosthesis comprises a condyle measuring base, positioning arms are arranged on two sides of the condyle measuring base, an inclined groove is formed above each positioning arm, and a positioning hole is formed in the tail end of each positioning arm.

In one embodiment, a threaded hole is provided in the middle of the condylar base.

In one embodiment, a condyle measuring sliding column is fixedly connected above the condyle measuring base, a joint is arranged above the condyle measuring sliding column, a measuring needle is arranged behind the joint, and a limiting column is arranged below the condyle measuring sliding column.

In one embodiment, an external rotation sliding column is arranged below the condyle measuring base, an external rotation sliding block is arranged below the external rotation sliding column, and an external rotation set screw is arranged below the external rotation sliding block.

In one embodiment, a condyle measuring support is fixedly arranged below the external rotation sliding block.

In one embodiment, the anterior of the lateral condyle support is provided with a posterior condyle, the anterior of the posterior condyle is provided with a femoral condyle, and the anterior condyle spinous process is provided in front of the femoral condyle.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

(1) The condyle measuring base is arranged, the osteotomy line is determined through the chute on the condyle measuring base, whether the osteotomy position is adjusted or not is conveniently judged during osteotomy, the positioning nail is drilled into the hole through the positioning hole on the condyle measuring base, and the next osteotomy is prepared to be implemented;

(2) The limit column is arranged, the measuring needle is moved to move to the position of the femoral condyle spinous process, and the specification scale on the condyle measuring base is pointed by the limit column, so that the specification of the matched femoral condyle prosthesis can be known;

(3) Through being provided with the posterior condyles, the survey condyle of external rotation slider holds in the palm the posterior condyles of tight thighbone condyle, uses the screw to fix survey the condyle apparatus on the thighbone condyle according to the through-hole on the external rotation sliding column.

Drawings

The technical solutions and other advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with the accompanying drawings.

In the drawings:

fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the present invention;

in the figure: 1. a joint; 2. measuring a needle; 3. measuring a condyle sliding column; 4. a condylar measuring base; 41. a positioning arm; 42. positioning holes; 43. a threaded hole; 44. a chute; 5. a limiting post; 6. an outward rotating slide block; 61. measuring the condyle support; 7. an outward spin traveler; 8. externally screwing a set screw; 101. an anterior condylar spinous process; 102. posterior condyles; 103. in the femoral condyle.

Detailed Description

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1-2, the present invention provides a technical solution: a condylar measuring instrument for assisting in implanting a knee joint prosthesis comprises a condylar measuring base 4, positioning arms 41 are arranged on two sides of the condylar measuring base 4, a chute 44 is arranged above each positioning arm 41, a positioning hole 42 is formed in the tail end of each positioning arm 41, a bone cutting line is determined through the chute 44 in the condylar measuring base 4, whether the bone cutting position is adjusted or not is judged conveniently during bone cutting, a positioning nail is drilled into a hole through the positioning hole 42 in the condylar measuring base 4, and the next bone cutting implementation is prepared;

a threaded hole 43 is formed in the middle of the condyle measuring base 4, and the threaded hole 43 on the condyle measuring base 4 is connected with a corresponding handle, so that a condyle measuring instrument is conveniently arranged on the femoral condyle;

a condyle measuring sliding column 3 is fixedly connected above the condyle measuring base 4, a joint 1 is arranged above the condyle measuring sliding column 3, a measuring needle 2 is arranged behind the joint 1, a limiting column 5 is arranged below the condyle measuring sliding column 3, the measuring needle 2 is moved to enable the measuring needle 2 to move to the position of the condyle of femur spinous process 101, and the specification of the matched condyle of femur prosthesis can be known by pointing to the specification scale on the condyle measuring base 4 through the limiting column 5;

an external rotation sliding column 7 is arranged below the condyle measuring base 4, an external rotation sliding block 6 is arranged below the external rotation sliding column 7, an external rotation set screw 8 is arranged below the external rotation sliding block 6, the external rotation sliding block 6 adjusts the external rotation sliding block 4 to corresponding scales according to the actual external rotation angle of the femur, and the external rotation sliding block 6 is fixed on the condyle measuring base 4 through the external rotation set screw 8;

a condyle measuring support 61 is fixedly arranged below the external rotation sliding block 6;

the posterior condyle 102 is arranged in front of the condyle measuring support 61, the femoral condyle 103 is arranged in front of the posterior condyle 102, the anterior condyle spinous process 101 is arranged in front of the femoral condyle 103, the condyle measuring support 61 of the external rotation sliding block 6 is tightly attached to the posterior condyle 102 of the femoral condyle, and the condyle measuring instrument is fixed on the femoral condyle 103 by using screws according to through holes on the external rotation sliding column 7.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; may be directly connected, may be internal to the two elements or may be in an interactive relationship with the two elements. The above terms are understood in the present application by those of ordinary skill in the art as the case may be.

The above detailed description is provided for a cleaning device provided in the embodiments of the present application, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A condylar instrumentation to aid in the implantation of a knee prosthesis comprising a condylar base (4) characterized by: locating arms (41) are arranged on two sides of the condyle measuring base (4), a chute (44) is arranged above each locating arm (41), and locating holes (42) are formed in the tail ends of the locating arms (41).

2. The condylar apparatus of claim 1, wherein: the middle of the condyle measuring base (4) is provided with a threaded hole (43).

3. The condylar apparatus of claim 2 for assisting in implantation of a knee prosthesis, wherein: the condyle measuring device is characterized in that a condyle measuring sliding column (3) is fixedly connected to the upper portion of the condyle measuring base (4), a connector (1) is arranged on the upper portion of the condyle measuring sliding column (3), a measuring needle (2) is arranged behind the connector (1), and a limiting column (5) is arranged below the condyle measuring sliding column (3).

4. The condylar apparatus of claim 3 for assisting in implantation of a knee prosthesis, wherein: an external rotation sliding column (7) is arranged below the condyle measuring base (4), an external rotation sliding block (6) is arranged below the external rotation sliding column (7), and an external rotation set screw (8) is arranged below the external rotation sliding block (6).

5. The condylar apparatus of claim 4, wherein: a condyle measuring support (61) is fixedly arranged below the external rotation sliding block (6).

6. The condylar apparatus of claim 5, wherein the condylar apparatus is configured to assist in implantation of a knee prosthesis, the condylar apparatus comprising: a posterior condyle (102) is arranged in front of the condyle measuring support (61), a femoral condyle (103) is arranged in front of the posterior condyle (102), and an anterior condyle spinous process (101) is arranged in front of the femoral condyle (103).