Dual tier spinal locking and retrieving system and instrumentati

Details Dual tier spinal locking and retrieving system and instrumentati Dual tier spinal locking and retrieving system and instrumentati

1993-01-14

1994-08-30

Isabella, David

Surgery

Instruments

Orthopedic instrumentation

606 60, 606 72, 606 73, A61F 504

Patent

active

053423615

ABSTRACT:
A dual-tier spinal locking and retrieving system comprises a plurality of spinal pins, one or more lower auxiliary locking members, a plurality of connecting members, one or more upper auxiliary locking members, and a plurality of locking devices. Each of the spinal pins is provided with a fastening portion, a stop portion and a first receiving portion. The lower auxiliary locking members are used to brace or tighten the first receiving portion of the spinal pin so as to establish a lower auxiliary locking framework. The connecting member is provided with a second receiving portion and a third receiving portion. Ther upper auxiliary locking members are used to brace or tighten the third receiving portion of the connecting member so as to established an upper auxiliary locking framework. The locking devices are used to construct a dual-tier spinal locking and retrieving system for which a percutaneous instrumentation is provided.

REFERENCES:
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patent: 5030220 (1991-07-01), Howland
patent: 5084048 (1992-01-01), Jacob et al.
patent: 5092867 (1992-03-01), Harms et al.
patent: 5127912 (1992-07-01), Ray et al.
patent: 5129899 (1992-07-01), Small et al.
patent: 5147360 (1992-09-01), Dubousset
patent: 5176679 (1993-01-01), Lin
patent: 5196014 (1993-03-01), Lin

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