Endoscopic bone debridement

• US 8,382,762 B2
• Filed: 07/28/2008
• Issued: 02/26/2013
• Est. Priority Date: 09/19/2001
• Status: Active Grant

• Current Assignee: James K. Brannon
• Original Assignee: James K. Brannon
• Inventors: Brannon, James K
• Primary Examiner(s): Stewart, Alvin J.
• Application Number:
  US12/181,205
• Publication Number:
  US 20080288006A1
• Time in Patent Office: 1,674 Days
• Field of Search: 606 90- 94, 606/232, 606 62- 68, 606/279, 606/246, 606/53, 606/59, 606/60, 606/247, 606/300, 606/311, 606/79, 606/80, 606 84- 85, 606/86.R, 606/87, 606/89, 606/96, 606/99, 606/86.A, 600/114, 600/102, 600/105
• US Class Current: 606/86.R
• CPC Class Codes: A61B 1/313 for introducing through surgical openings, e.g. laparoscopes
• CPC Class Codes: A61B 17/32002 with continuously rotating, oscillating or reciprocating cutting instruments
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/742 having one or more longitudinal elements oriented along or parallel to the axis of the neck
• CPC Class Codes: A61B 2017/12004 for haemostasis, for prevention of bleeding
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2002/2828 Femoral head
• CPC Class Codes: A61F 2002/2835 Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/4635 using minimally invasive surgery
• CPC Class Codes: A61F 2002/4685 by means of vacuum

Abstract

The invention described includes an osteoendoscopic cylinder for tamponading bleeding along a longitudinal canal surface of an osteocentral canal of a femoral neck so as to allow endoscopic visualization of a segment of osteonecrotic bone within a femoral head. The osteoendoscopic cylinder is of a dimension adapted to receive an endoscope therein and includes an inner visual surface and an outer bony contact surface. An orientation mark along the inner visual surface is of a size and dimension to ensure a first visualization thereof with the endoscope. The first visualization is of an effect to allow spatial orientation of the endoscope within the femoral head. A side opening proximally situated thereabout a proximal handle end is of a size and dimension adapted to mount a vacuum apparatus comprising of a transparent tube.

Claims

1. A combination of devices for use in treating osteonecrotic bone, comprising:

an osteomedullary cylinder presenting a cylindrical canal in a segment of bone;

an osteoendoscopic cylinder having an outer bony contact surface for contact with a longitudinal canal surface created by said osteomedullary cylinder so as to tamponade bleeding therefrom;

a circumferential hermetic seal formed by a combination of a centralizing sleeve and said osteoendoscopic cylinder, said hermetic seal being formed at the juncture of said outer bony surface and said longitudinal canal surface and extending along the combination of said centralizing sleeve and said osteoendoscopic cylinder; and

said osteoendoscopic cylinder coaxially receiving an endoscope along an inner visual surface for treating the osteonecrotic bone.

2. The combination of claim 1, further including an instrument adapted to be passed through said endoscope and to debride necrotic bone.

3. The combination of claim 1 wherein said endoscope further includes a proximal handle end engaged by a handle.

4. A combination of devices for use in treating osteonecrotic bone, comprising:

an osteomedullary cylinder presenting a cylindrical canal in a segment of bone;

an osteoendoscopic cylinder having an outer bony contact surface for contact with a longitudinal canal surface created by said osteomedullary cylinder so as to tamponade bleeding therefrom, wherein said outer bony contact surface presents a hermetic seal at the juncture of said outer bony surface and said longitudinal canal surface;

said osteoendoscopic cylinder coaxially receives an endoscope along an inner visual surface; and

an inner hermetic seal at the juncture of a centralizing sleeve and an inner bony surface of a lateral portal of entry.

5. A combination of devices for use in treating osteonecrotic bone, comprising:

an osteomedullary cylinder presenting a cylindrical canal in a segment of bone;

an osteoendoscopic cylinder having an outer bony contact surface for contact with a longitudinal canal surface created by said osteomedullary cylinder so as to tamponade bleeding therefrom, wherein said outer bony contact surface presents a hermetic seal at the juncture of said outer bony surface and said longitudinal canal surface;

said osteoendoscopic cylinder coaxially receives an endoscope along an inner visual surface; and

an outer hermetic seal at the juncture of an outer bony contact surface and an inner centralizing surface of a centralizing sleeve.