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Rib locking type scapula prosthesis based on 3D printing

A 3D printing, scapula technology, applied in 3D printing, prosthesis, bone implants, etc., can solve the problem of mismatch between ribs and prosthesis, time-consuming, laborious and other problems

Inactive Publication Date: 2019-04-23
FUNDAN UNIVERSITY SHANGHAI CANER CENTER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the individual differences of patients or injured patients, the joint parts used for fixation cannot meet the needs of each individual rib shape and walking. Increase the binding of steel wires, which is time-consuming and labor-intensive and increases the possibility of lung injury

Method used

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  • Rib locking type scapula prosthesis based on 3D printing
  • Rib locking type scapula prosthesis based on 3D printing
  • Rib locking type scapula prosthesis based on 3D printing

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Applying 3D printing technology, improving on the basis of the original RF prosthesis, preparing a rib-locking scapula prosthesis based on 3D printing. The outer platen 15, the inner screw 13, and the outer screw 16 form a rib-locked scapula prosthesis. More specifically, the rib-locked scapular prosthesis based on 3D printing of the present invention is characterized in that it consists of a ball head 1, a suture hole 2, Inner groove 3, rib 4, inner hook 5, outer hook 6, suture hole 7, outer threaded hole 8, outer groove 9, lower hook 10, ball neck 11, inner thread 12, inner screw 13, inner pressure 14, outer Pressing plate 15, outer screw 16, inner pressing plate sink hole 17, outer pressing plate sinking 18 are formed; described inner hook (5), outer hook (6), and lower hook (10) are made into fixed hooks, during use, before operation Individualized evaluation of the patient's tumor condition and its own skeleton, including: the size of the posterolateral second and ...

Embodiment 2

[0034] Patients with malignant tumors involving the shoulder joint were selected for shoulder joint reconstruction after total scapula resection. Preoperative assessment of tumor lesions, determination of tumor boundary resection, including resection of the entire scapula and partial soft tissue resection, individualized design of tumor-type 3D printed rib-locking scapula prosthesis Body, using the structural display, can be individually riveted on the 2nd and 3rd ribs, such as Figure 1-Figure 8 As shown, ensure the complete match between the scapula prosthesis and the ribs, and ensure the stability of the shoulder joint.

Embodiment 3

[0036] Select patients with scapular malignant tumors, according to the tumor-free principle, perform a complete resection of the scapular tumor outside the tumor, resect the entire scapula, and resect if there is soft tissue invasion around; Quadratus muscle, open part of the latissimus dorsi under the surface of the scapula, open the deltoid muscle at the starting point of the acromion and scapular mount on the outside, open the rhomboid muscle on the deep inside, cut off the levator scapula at the upper corner of the scapula, and open the teres major and teres minor from the scapula on the outside Infraspinatus muscle, infraspinatus muscle and supraspinatus muscle, open the starting point of coracobrachialis muscle, short head of biceps brachii, and pectoralis minor muscle in front, open the acromioclavicular joint, open the shoulder joint, and under the entire scapula. Depending on the situation, choose a different resection range, including resection of the surrounding inv...

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Abstract

The invention belongs to the field of biomedicine engineering, and relates to a bone joint substitute, in particular to a rib locking type scapula prosthesis based on 3D printing and preparation method thereof. Inside and outside press plates and inside and outside screws are designed by using the 3D printing technology, the scapula prosthesis can be well riveted to the third rib and the second rib with scalenus posterior attachment, and the far end is connected with the near end of the autologous humerus through an artificial humeral head prosthesis in a glenohumeral inversion type way. The rib locking type scapula prosthesis prepared by using the method is used for shoulder joint reconstruction after total scapulae removal caused by scapula malignant tumor and the malignant tumor involving shoulder joints and the functions of the shoulder joints, after reconstruction, limb salvage can be achieved, and part of functions of the upper limbs can be reserved, and daily life and work needsof a patient can be met. The problem about repair and reconstruction under the conditions of total scapulae removal accompanied by a lack of soft tissue conditions is solved, limb salvage is achieved, and the psychic trauma of the patient is reduced.

Description

technical field [0001] The invention belongs to the field of biomedical engineering, and relates to a bone joint substitute for surgery, in particular to a rib-locking scapula prosthesis and a preparation method thereof, especially a rib-locking artificial total shoulder joint based on 3D printing and a preparation method thereof. The rib-locking scapula prosthesis prepared by the present invention is applied to the malignant tumor of the scapula and the malignant tumor involving the shoulder joint to reconstruct the shoulder joint and its function after total scapula resection. daily work needs. Background technique [0002] Clinical practice shows that the primary tumor of the scapula is rare, but its metastatic cancer is one of the clinically prevalent sites. The information discloses that the scapula is an important power transduction structure of the human body, which carries the upper limbs and fully exerts the functions of the upper limbs, especially the hands. The ...

Claims

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Application Information

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IPC IPC(8): A61F2/28A61F2/30
CPCA61F2/28A61F2/30749A61F2002/30621A61F2002/30878A61F2002/30985
Inventor 张如明郑必强斐晓宏周思远
Owner FUNDAN UNIVERSITY SHANGHAI CANER CENTER