Methods and devices for preparing and implanting tissue scaffolds

• US 8,469,980 B2
• Filed: 10/17/2012
• Issued: 06/25/2013
• Est. Priority Date: 03/27/2009
• Status: Active Grant

• Current Assignee: Depuy Mitek LLC (Johnson & Johnson)
• Original Assignee: Depuy Mitek LLC (Johnson & Johnson)
• Inventors: Sengun, Mehmet Ziya, DiMatteo, Kristian
• Primary Examiner(s): TYSON, MELANIE RUANO
• Application Number:
  US13/653,867
• Publication Number:
  US 20130041380A1
• Time in Patent Office: 251 Days
• Field of Search: D19/40, 604/116, 33/231.1
• US Class Current: 606/167
• CPC Class Codes: A61B 17/32053 Punch like cutting instruments, e.g. using a cylindrical or oval knife A61B17/326 takes precedence; trepans A61B17/1695; for use on the cornea A61F9/007
• CPC Class Codes: A61B 2017/00738 part of the tool being offset with respect to a main axis, e.g. for better view for the surgeon
• CPC Class Codes: A61B 2017/00969 used for transplantation
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395
• CPC Class Codes: A61B 2090/061 for measuring dimensions, e.g. length
• CPC Class Codes: A61B 2090/3904 specially adapted for marking specified tissue
• CPC Class Codes: A61B 2090/3937 Visible markers
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/02 Prostheses implantable into the body closure means for urethra or rectum or for artificial body openings therefor A61F2/0004
• CPC Class Codes: A61F 2/30756 Cartilage endoprostheses A61F2/3603 takes precedence
• CPC Class Codes: A61F 2002/30759 Mosaicplasty, i.e. using a plurality of individual cartilage plugs for filling a substantial cartilage defect
• CPC Class Codes: A61F 2002/30766 Scaffolds for cartilage ingrowth and regeneration
• CPC Class Codes: A61L 2430/06 for cartilage reconstruction, e.g. meniscus
• CPC Class Codes: A61L 2430/34 for soft tissue reconstruction
• CPC Class Codes: A61L 27/3641 characterised by the site of application in the body materials for artificial blood vessels A61L27/507; materials for use in artificial skin A61L27/60
• CPC Class Codes: A61L 27/3654 Cartilage, e.g. meniscus

Abstract

Methods and devices are provided for preparing and implanting tissue scaffolds. Various embodiments of scribing tools are provided that are configured to mark one or more predetermined shapes around a defect site in tissue. The shape or shapes marked in tissue can be used to cut a tissue scaffold having a shape that matches the shape or shapes marked in tissue. In one embodiment, the scribing tool used to mark a shape in tissue can also be used to cut the tissue scaffold.

Claims

1. A tissue repair kit, comprising:

a scribing tool configured to form in tissue a circular mark having a predetermined diameter; and

a cutting template device having first and second portions slidably coupled to one another, the first and second portions having a first position in which the first and second portions define a circular cut-out formed therebetween and having a diameter that corresponds to the predetermined diameter, and an expanded position in which the first and second portions define an oblong cut-out formed therebetween and having a major axis length that is adjustable.

2. The kit of claim 1, wherein the first and second portions in the first position define a plurality of circular cut-outs formed therebetween, each of the plurality of circular cut-outs having a different diameter.

3. The kit of claim 2, further comprising a plurality of scribing tools, each of the plurality of scribing tools configured to form in tissue a circular mark having a predetermined diameter corresponding to one of the diameters of the plurality of circular cut-outs.

4. The kit of claim 1, wherein the first and second portions in the expanded position define a plurality of oblong cut-outs formed therebetween, each of the plurality of oblong cut-outs having a major axis length that is adjustable.