Systems and Methods for the Medical Treatment of Structural Tissue

• US 20080221623A1
• Filed: 05/21/2008
• Published: 09/11/2008
• Est. Priority Date: 10/17/2005
• Status: Abandoned Application

• Current Assignee: Hubert L. Gooch
• Original Assignee: Hubert L. Gooch
• Inventors: Gooch, Hubert L.
• Application Number:
  US12/124,416
• Publication Number:
  US 20080221623A1
• Time in Patent Office: Days
• US Class Current: 606/302
• CPC Class Codes: A61B 17/686 Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
• CPC Class Codes: A61B 17/70 Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
• CPC Class Codes: A61B 17/8872 Instruments for putting said fixation devices against or away from the bone A61B17/7074, A61B17/808 take precedence
• CPC Class Codes: A61B 2017/8655 with special features for locking in the bone

Abstract

The present invention is directed generally to a biomedical system(s) and method(s). More specifically, some embodiments may include system(s) and method(s) used in medical treatment(s). Various embodiments may include medical system(s) and method(s) that may use an anchoring mechanism and screw (bolt, etc.) arrangement that increases the strength of attachment. Some embodiments may further include, for example, an anchoring mechanism that expands upon insertion of a screw (bolt, etc.) into an opening. Some embodiments may include, for example, a system(s) and method(s) for improvement of structural tissue (e.g., bone, cartilage) fixation and safety. Further, some embodiments may also include, for example, an anchoring mechanism and screw (bolt, etc.) system that may be utilized in orthopedic procedures. Still some embodiments may further include system(s) and method(s) providing improved screw fixation and enhanced stabilization in structural tissue or fracture repair. Various embodiments may include multiple anchor mechanisms and anchor mechanism holding means.

Claims

1. A structural tissue repair or reconstruction apparatus, comprising:

a cylindrically or conically shaped anchor mechanism including;

a primary circular wall with an inner circular surface defining an inner channel for accepting a shaft, screw, or bolt, and an outer circular surface forming a lateral length body, the primary and a first open end and a second open end at opposing ends of the lateral length;

one or more expandable wall member(s) that are formed along the lateral length body and are planner with the outer circular surface and extend into the inner channel when the expandable wall member(s) are in their unexpanded position, and are approximately planner to the inner circular surface and expand outward from an outer circular surface when in their expanded position upon insertion of a shaft, screw or bolt into the anchoring mechanism, so as to increase screw purchase in structural tissue when the expandable wall member(s) are in the expanded position;

wherein the lateral length body is made of a material different than that of the expandable wall members.

2. The repair or reconstruction apparatus of claim 1, wherein the lateral length body is made of a rigid material and the expandable wall members are made of a malleable material attached to the lateral length body.

3. The repair or reconstruction apparatus of claim 1, wherein at least one of the first open end or the second open end includes a rim attached thereto.

4. The repair or reconstruction apparatus of claim 1, wherein the expandable wall members is are thicker at a center portion along the lateral length of the anchoring mechanism.

5. The repair or reconstruction apparatus of claim 1, wherein the expandable wall members are thicker at a location closest to the first open end or the second open end along the lateral length of the anchoring mechanism.

6. The repair or reconstruction apparatus of claim 1, wherein the outer circular surface(s) of the anchoring mechanism has at least a portion that is textured, threaded, ribbed, or studded.

7. The repair or reconstruction apparatus of claim 1, wherein the outer circular surface(s) of the anchoring mechanism is composed of a gripping material made of allograft, allograft bone, polyetheretherkeetones (PEEK), high molecular weight polyethylene (HMWPE), carbon fiber, or other biocompatible material.

8. The repair or reconstruction apparatus of claim 1, wherein the outer circular surface(s) of the anchoring mechanism is coated with hydroxyl apatite or bone morphogenetic protein.

9. The repair or reconstruction apparatus of claim 1, further comprising:

a means for holding and positioning the anchoring mechanism in a channel in structural tissue.

10. The repair or reconstruction apparatus of claim 1, further comprising:

a marker means for visually determining position and orientation of the anchoring mechanism.

11. An anchoring system, comprising:

a first anchoring mechanism;

a second anchoring mechanism; and

a rod, screw or bolt extending through at least a portion of the first anchoring mechanism and the second anchoring mechanism.

12. The anchoring system of claim 11, wherein the second anchoring mechanisms is inserted into the first anchoring.

13. The anchoring system of claim 12, wherein the second anchoring mechanisms is inserted into the first anchoring mechanism at an angle relative to the lateral axis of the first anchor.

14. An anchoring mechanism, comprising:

a means for gripping the anchoring mechanism to hold it in a desired position.

15. The anchoring mechanism of claim 14, wherein the means for gripping the anchoring mechanism is a handle formed as part of the anchoring mechanism that can be removed after the anchoring mechanism is placed into a desired location and a rod, screw or bolt is inserted to the anchoring mechanism.

16. The anchoring mechanism of claim 14, wherein an external circumference near one end of the anchoring mechanism includes holes, is slotted, indented, or is ribbed for gripping the anchoring mechanism.

17. The anchoring mechanism of claim 14, wherein a guide to hold the anchoring mechanism is coupled to the anchoring mechanism via a plurality of slots in the external circumference.

18. The anchoring mechanism of claim 17, wherein the guide includes a rim with indentations interdigitated with the rim of the anchoring mechanism.

19. An anchoring mechanism utilized in a medical treatment(s), comprising:

an anchor with an external surface that contains members that extend laterally outward to counter the rotational forces caused by threading a screw or bolt into the anchor.

20. The anchoring mechanism of claim 19, wherein the members of the external surface of the anchor extend lengthwise across the entire surface of the anchor.