Adjustable length, reusable retraction blades

Patent metadata

Field	Value
Publication number	US-2019015089-A1
Application number	US-201715650496-A
Country	US
Kind code	A1
Filing date	Jul 14, 2017
Priority date	Jul 14, 2017
Publication date	Jan 17, 2019
Grant date	—

Abstract

An adjustable retractor blade and retractor system are disclosed. The retractor blade includes a fixed portion, extendible portion, and means for adjusting the length of the retractor blade. The means for adjusting may include a threaded rod engaging the fixed portion with the extendible portion. In one aspect, the extendible portion includes a plurality of stackable members, with the length of the adjustable blade adjusted by attaching stackable members. In one aspect, the fixed portion includes a plurality of holes, and the extendible portion includes at least one post, the plurality of holes configured to receive the at least one post, with the length of the adjustable blade adjusted by slidably displacing the extendible portion until the at least one post engages with at least one of the plurality of holes. Methods are provided for adjusting the length of a retractor blade.

First claim

We claim:

1 . An adjustable blade for surgical retraction, the adjustable blade comprising:
a fixed portion having a plurality of holes; and an extendible portion having at least one post near its distal end, the fixed portion having one or more channels configured to engage the fixed portion, the plurality of holes configured to receive the at least one post, wherein the length of the adjustable blade is adjusted by slidably displacing the extendible portion until the at least one post engages with at least one of the plurality of holes at a desired length.

2 . The adjustable blade of claim 1 , wherein the at least one post is a spring-loaded depressable post.

3 . The adjustable blade of claim 2 , wherein at least two depressable posts engage with at least two of the plurality of holes to adjust the length of the adjustable blade.

4 . The adjustable blade of claim 1 , wherein two posts are disposed on opposite sides of the fixed portion.

5 . The adjustable blade of claim 1 , wherein the adjustable blade is adjustable in length in a range from about 30 mm to about 120 mm.

6 . An adjustable blade for surgical retraction, the adjustable blade comprising:
a fixed portion having a proximal end, a distal end, and one or more channels; an extendible portion engaged with the one or more channels and longitudinally displaceable therein, the extendible portion extending from the distal end; and means for adjusting the length of the adjustable blade, wherein the means for adjusting comprises a threaded rod or screw engaging the fixed portion with the extendible portion.

7 . The adjustable blade of claim 6 , wherein the threaded rod or screw is mounted at the proximal end.

8 . The adjustable blade of claim 6 , wherein rotation of the threaded rod or screw displaces the extendible portion longitudinally.

9 . The adjustable blade of claim 6 , wherein the desired length of the adjustable blade is secured by screw tension.

10 . The adjustable blade of claim 6 , wherein the adjustable blade is adjustable in length in a range from about 30 mm to about 120 mm.

11 . The adjustable blade of claim 6 , further comprising stop means for preventing disengagement of the fixed portion and the extendible portion.

12 . The adjustable retractor blade of claim 6 , further comprising locking means for securing the adjustable blade at a desired length.

13 . The adjustable retractor blade of claim 6 , wherein the fixed portion further comprises a flange.

14 . The adjustable retractor blade of claim 13 , wherein the fixed portion is mounted to a retractor arm at the flange.

15 . An adjustable blade for surgical retraction, the adjustable blade comprising:
a fixed portion; an extendible portion comprising a plurality of stackable members, at least one of the plurality of stackable members secured to the fixed portion; and means for reversibly attaching the plurality of stackable members to each other, wherein the length of the adjustable blade is adjusted by attaching or detaching members of the plurality of stackable members to the extendible portion.

16 . The adjustable blade of claim 15 , wherein the means for reversibly attaching is selected from the group consisting of: magnets, pins and recesses, screws, and combinations of any thereof.

17 . The adjustable blade of claim 16 , wherein the magnets are disposed at the interface of two stackable portions.

18 . The adjustable blade of claim 15 , wherein the adjustable blade is adjustable in length in a range from about 30 mm to about 120 mm.

19 . The adjustable blade of claim 15 , wherein the fixed portion further includes a flange configured for mounting to a retractor arm.

20 . The adjustable blade of claim 15 , wherein the distal member of the plurality of stackable members includes a curved portion at its distal end, the curved portion having a serrated edge.

Assignees

• Carefusion 2200 Inc

Inventors

• Rosenbaum Joanna
• Tillman Sara
• Vandeweghe Andrew
• Hussey Timothy
• Toth Brandon
• Williams Bradley
• Mcquaide Jessica
• Cartwright Jason
• Fedenia Adam
• Wilschke Thomas

Classifications

• A61B17/0206 Primary

  with antagonistic arms as supports for retractor elements · CPC title

• A61B2017/00991

  Telescopic means · CPC title

• A61B17/02 Primary

  for holding wounds open, e.g. retractors; Tractors · CPC title

• A61B17/025

  Joint distractors · CPC title

• A61B2017/0256

  for the spine · CPC title