Device for fixing spinal column under treatment

• US 6,730,088 B2
• Filed: 05/16/2002
• Issued: 05/04/2004
• Est. Priority Date: 08/29/2001
• Status: Expired due to Fees

• Current Assignee: Chung-Chun Yeh
• Original Assignee: Chung-Chun Yeh
• Inventors: Yeh, Chung-Chun
• Primary Examiner(s): Shaver, Kevin
• Assistant Examiner(s): Priddy, Michael B.
• Application Number:
  US10/145,743
• Publication Number:
  US 20030045877A1
• Time in Patent Office: 719 Days
• Field of Search: 606/60, 606/61, 623/16.11, 623/17.11, 623/17.15, 623/17.16
• US Class Current: 606/247
• CPC Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/30405 made by screwing complementary threads machined on the parts themselves
• CPC Class Codes: A61F 2002/30495 using a locking ring
• CPC Class Codes: A61F 2002/30507 using a threaded locking member, e.g. a locking screw or a set screw
• CPC Class Codes: A61F 2002/30517 using a locking plate
• CPC Class Codes: A61F 2002/30523 by means of meshing gear teeth
• CPC Class Codes: A61F 2002/30538 for adjusting angular orientation
• CPC Class Codes: A61F 2002/3055 for adjusting length
• CPC Class Codes: A61F 2002/30578 having apertures, e.g. for receiving fixation screws
• CPC Class Codes: A61F 2002/30601 telescopic
• CPC Class Codes: A61F 2220/0025 Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
• CPC Class Codes: A61F 2250/0006 for adjusting angular orientation

Abstract

A spinal column fixation device includes a support member, a top seat fastened at the top end with the support member, and a bottom seat fastened at the bottom end with the support member. The top seat and the support member are fastened by an angle adjusting mechanism such that the angle between the top seat and the support member is adjustable. The bottom seat and the support member are fastened by an angle adjusting mechanism such that the angle between the bottom seat and the support member is adjustable.

Claims

1. A spinal column fixing device comprising:

a support member;

a top seat joined with a top end of said support member;

a bottom seat joined with a bottom end of said support member;

wherein said top seat or said bottom seat are joined to said support member with an angle adjusting mechanism, so that said top seat or said bottom seat can be fixedly joined with said support member in various angles formed between said support member and said top seat or said bottom seat;

said angle adjusting mechanism comprises a serrated recessed curved surface and a serrated protruded curved surface, provided that one is formed on said support member and another one is formed on said top seat or said bottom seat; and

a pivotally fastening means, wherein said pivotally fastening means fastens said top seat or said bottom seat to said support member with said serrated recessed curved surface and said serrated protruded curved surface being engaged with each other.

2. The device as defined in claim 1, wherein said support member has a height adjusting mechanism.

3. The device as defined in claim 2, wherein said height adjusting mechanism is formed of an upper support body, a lower support body, and an adjustment ring;

wherein said lower support body is fastened with said adjustment ring, and said upper support body is threadably received in said adjustment ring, so as to attain the function of height adjustment.

4. The device as defined in claim 2, wherein said height adjusting mechanism is formed of an upper support body, a lower support body, and an adjustment ring;

wherein said upper support body is fastened with said adjustment ring, and said upper support body is threadably received in said adjustment ring, so as to attain the function of height adjustment.

5. The device as defined in claim 1, wherein said top seat and said bottom seat are independently joined to said support member with said angle adjusting mechanism.