Multifunctional fixed upper limb backbone prosthesis

A multifunctional and backbone technology, applied in the direction of bone implants, can solve the problems of inconvenient use, unclear scope of application, imprecise production, etc., to avoid infection, low incidence of early complications, and good biomechanical strength Effect

Pending Publication Date: 2016-05-18
胡永成
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the current clinical retrospective analysis of the segmental prosthesis found that the scope of application of the segmental prosthesis in the backbone of the limbs is not clear, and the design is simple and the production is not precise. Therefore, complications such as loosening, fracture, and periprosthetic fractures occur Many, inconvenient to use

Method used

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  • Multifunctional fixed upper limb backbone prosthesis
  • Multifunctional fixed upper limb backbone prosthesis
  • Multifunctional fixed upper limb backbone prosthesis

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Experimental program
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Effect test

Embodiment Construction

[0017] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0018] The main components of the multi-mode fixed backbone prosthesis for upper limbs of the present invention are a prosthesis handle A (1), a prosthesis handle B (2) and an outer multifunctional steel plate (3). Prosthetic stem A (1) and prosthetic stem B (2) are the main structures of the fixed prosthesis, which are respectively inserted into the corresponding medullary cavity and fixed by bone cement.

[0019] Such as figure 1 Shown is the front view of the stem A, figure 2 It is the right view of the prosthetic stem A, one end of the prosthetic stem A (1) has a stepped structure (11), and the stepped surface of the stepped structure is also provided with 2 bolt holes (12) and a multi-functional steel plate with the outside Combined screw hole (13), the other end is the medullary canal handle (14). The outer surface of the medullary canal...

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Abstract

The invention discloses a multifunctional fixed upper limb backbone prosthesis which comprises a prosthesis stem A, a prosthesis stem B and a multifunctional outer side steel plate. One end of the prosthesis stem A is of a stepped structure, the stepped surface of the stepped structure is further respectively provided with two bolt holes and one screw hole combined with the multifunctional outer side steel plate, and the other end of the prosthesis stem A serves as a medullary cavity stem. Stepped structures are symmetrically arranged at one end of the prosthesis stem B, the stepped surfaces of the stepped structures are further respectively provided with two bolt holes and one screw hole combined with the multifunctional outer side steel plate, and the other end of the prosthesis stem B serves as a medullary cavity stem. The multifunctional outer side steel plate is an eight-hole straight lock pin pressurized steel plate and is connected with the prosthesis stem A and the prosthesis stem B through screws. The multifunctional fixed upper limb backbone prosthesis can avoid infection, bone un-union, delayed union and other complications occurred after allogeneic bone transplantation and remodeling, is long in service life, good in biomechanical strength and good in stability, has the advantages of preventing turning, looseness, traction and the like and has the lower occurrence rate of early stage complications.

Description

technical field [0001] The invention relates to the technical field of artificial prosthesis replacement, in particular to a backbone multi-mode fixed prosthesis applied to the reconstruction of large structural bone defects formed after resection of primary or metastatic malignant bone tumors, trauma, and inflammation of the diaphysis of the upper extremity . Background technique [0002] Primary and secondary malignant bone tumors are motor system tumors that seriously threaten the survival and quality of life of patients. With the development of surgical techniques, the innovation of tumor imaging technology and the development of neoadjuvant chemotherapy for patients with malignant bone tumors, limb salvage surgery has become a consensus in the treatment of malignant bone tumors. Malignant bone tumors that occur in the long shaft of the extremities need to follow the principle of extensive resection in clinical practice. Therefore, how to reconstruct the bone defect aft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28
CPCA61F2/28A61F2/2846A61F2002/285A61F2002/2835
Inventor 胡永成
Owner 胡永成
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