Flexible surgical retractor

• US 8,529,444 B2
• Filed: 01/25/2008
• Issued: 09/10/2013
• Est. Priority Date: 01/25/2008
• Status: Active Grant

• Current Assignee: Flexbar Machine Corporation
• Original Assignee: Theodore Hale
• Inventors: Hale, Theodore
• Primary Examiner(s): BATES, DAVID W
• Application Number:
  US12/020,014
• Publication Number:
  US 20090192359A1
• Time in Patent Office: 2,055 Days
• Field of Search: 600/206, 600/207, 600/208, 600/210, 814/58, 814/86, 81/22, 269/275, 294/33, 267/133, 267/136, 267/137, 267/139, 267/140.11, 267/141, 248/615, 606/99, 606/157, 606/158, 128/885
• US Class Current: 600/206
• CPC Class Codes: A61B 1/32 Devices for opening or enlarging the visual field, e.g. of a tube of the body dilators A61M29/00
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00946 malleable
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 5/03 Detecting, measuring or recording fluid pressure within the body other than blood pressure, e.g. cerebral pressure; Measuring pressure in body tissues or organs A61B5/205 takes precedence

Abstract

A surgical retractor including a slab-shaped member having a first edge and a second opposing edge, wherein a deformable elongate member is provided affixed to said first edge, said elongate member comprising an external wall defining an internal chamber, wherein the external wall is configured to be compressible and moldable to a surface, in particular, a human tissue surface within a surgical incision. A curved flexural handle may be provided attached to the second edge.

Claims

1. A surgical retractor comprising:

a unit having a first edge and a second opposing edge; and

a deformable, resilient elongate member defining an open-ended cavity in a first configuration, wherein an exterior surface of the elongate member is attached to the first edge of the unit and the elongate member is comprised of a cell lattice structure and is configured to be compressible and moldable to a surface, whereby the elongate member is configured to absorb shock in at least a direction substantially parallel to a vertical axis connecting the first edge to the second opposing edge, wherein the elongate member is moldable into a second configuration wherein the elongate member is compressed to substantially eliminate the cavity, wherein each cell of the cell lattice structure has side walls defining a chamber and wherein a longitudinal axis of each chamber of each cell is substantially parallel to a longitudinal axis of the elongate member.

2. The retractor of claim 1, wherein the elongate member is at least one of a polygonal or circular shape in cross-section.

3. The retractor of claim 1, further comprising a curved handle attached to the second edge.

4. The retractor of claim 1, wherein the surface comprises a human tissue surface within the human abdominal cavity.

5. The retractor of claim 4, wherein the surface comprises a retroperitoneal space.

6. The retractor of claim 1, wherein in the second configuration the elongate member is moldable into a U-shape.

7. The retractor of claim 1, wherein the elongate member is comprised of flexible polyurethane.

8. The surgical retractor of claim 1, wherein the exterior surface of the elongate member includes a longitudinal edge, whereby the elongate member is affixed to said first edge of the unit along said longitudinal edge.

9. A self-molding surgical retractor comprising:

a unit having a first edge and a second opposing edge;

a deformable, resilient elongate member defining an open-ended cavity in a first configuration, wherein an exterior surface of the elongate member is attached to the first edge of the unit and the elongate member is comprised of a cell lattice structure and is configured to be compressible and moldable to a surface, whereby the elongate member is configured to absorb shock in at least a direction substantially parallel to a vertical axis connecting the first edge to the second opposing edge; and

a curved handle attached to the second edge, wherein the elongate member includes an internal flexible cell lattice structure and is moldable into a second configuration wherein the elongate member is compressed to substantially eliminate the cavity, and wherein each cell of the cell lattice structure has side walls defining a chamber, wherein a longitudinal axis of each chamber of each cell is substantially parallel to a longitudinal axis of the elongate member.

10. The retractor of claim 9, wherein a cross-section of the elongate member comprises at least one of a polygonal or circular shape.

11. The retractor of claim 9, wherein the cell lattice structure comprises a plurality of hexagonal flexible cells.

12. The retractor of claim 9, wherein the surface comprises a human tissue surface within the human abdominal cavity.

13. The retractor of claim 9, wherein the elongate member is comprised of flexible polyurethane.

14. A surgical retractor comprising:

a deformable polyurethane elongate member comprising an open-ended elongate enclosure defining an open-ended chamber, wherein the elongate member is comprised of a cross-linked cell network in a honeycomb configuration and is configured to be compressible, resilient and moldable with respect to a surface, wherein the elongate member includes an internal flexible cell lattice structure, said elongate member being moldable into a configuration wherein the elongate member is compressed to substantially eliminate the cavity, and wherein each cell of the cell lattice structure has side walls defining a chamber, wherein a longitudinal axis of each chamber of each cell is substantially parallel to a longitudinal axis of the elongate member.