US 7,704,207 B2Granted

Circular surgical retractor

AssigneeApplied Medical Resources Corporation

InventorsJeremy J. Albrecht, Charles C Hart, John R. Brustad

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Abstract

A wound retractor for retracting a surgical incision includes an inner ring, an outer ring and a distensible sleeve coupled to the inner and outer rings. The outer ring includes at least a pair of circular tubes coupled to each other. At least one of the circular tubes includes a lumen and a split that forms open ends. A noncompliant tubular hoop having a split therein is positioned in the lumen. The tubular hoop is oriented with its open ends positioned away from the split of the circular tubes. A core is positioned in the lumen of the tubular hoop. The core has a first end and a second end and is oriented with the ends positioned away from the split in the tubular hoop. The circular tubes may be parallel or may form a helical pattern similar to a Mobius strip.

Claims40

Dependent claims

An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;
a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,
a first substantially circular tube having a first lumen, the first circular tube being made of a flexible material,
a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring, the second circular tube having a second lumen, the second circular tube being made of a flexible material,
a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring,
a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring,
a first core positioned in the lumen of the first tubular hoop, the first core having a first end and a second end, the first core being oriented with the first and second ends of the first core positioned away from the split in the first tubular hoop, and
a second core positioned in the lumen of the second tubular hoop, the second core having a first end and a second end, the second core being oriented with the first and second ends of the second core positioned away from the split in the second tubular hoop;
and
a distensible sleeve, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second proximal end of the sleeve being coupled to the outer ring of the wound retractor,
wherein, the outer ring of the wound retractor being substantially rigid and noncompliant.

8 more elements

An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;
a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,
a first substantially circular tube having a first lumen and a split forming a first end and a second end, the first circular tube being made of an elastomeric material,
a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring through a substantially thin mid-section, the second circular tube having a second lumen and a split forming a first end and a second end, the second circular tube being made of an elastomeric material,
a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring, the first tubular hoop being oriented with the open ends of the first tubular hoop positioned away from the first and second ends of the first circular tube,
a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring, the second tubular hoop being oriented with the open ends of the second tubular hoop positioned away from the first and second ends of the second circular tube,
a first core positioned in the lumen of the first tubular hoop, the first core having a first end and a second end, the first core being oriented with the first and second ends of the first core positioned away from the split in the first tubular hoop, and
a second core positioned in the lumen of the second tubular hoop, the second core having a first end and a second end, the second core being oriented with the first and second ends of the second core positioned away from the split in the second tubular hoop;
and
a distensible sleeve, the sleeve being made from a thin film, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second proximal end of the sleeve being coupled to the outer ring of the wound retractor,
wherein, the outer ring of the wound retractor being substantially rigid and noncompliant,
each of the combinations of the first tubular hoop with the first core and the second tubular hoop with the second core functioning as an axle about which the outer ring may turn for half a rotation,
the first circular tube of the outer ring of the wound retractor being adapted to be roiled outside the second circular tube of the outer ring with the circumference of the first split tubular hoop in the first circular tube of the outer ring expanding to clear the second split tubular hoop in the second circular tube of the outer ring;
and
the second circular tube of the outer ring of the wound retractor being adapted to be rolled outside the first circular tube of the outer ring with the circumference of the second split tubular hoop in the second circular tube of the outer ring expanding to clear the first split tubular hoop in the first circular tube of the outer ring.

12 more elements

An adjustable wound retractor adapted to retract a surgical incision in a body wall to a desired diameter, comprising:

a first, inner ring adapted to be inserted into the incision and to be juxtaposed with an inner surface of the body wall;
a second, outer ring adapted for juxtaposition with an outer surface of the body wall, the outer ring including,
a first substantially circular tube having a first lumen, the first circular tube being made of a flexible material,
a second substantially circular tube spaced axially from the first circular tube and coupled to the first circular tube of the outer ring, the second circular tube having a second lumen, the second circular tube being made of a flexible material,
a first rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the first tubular hoop, the first tubular hoop being positioned in the first lumen of the first circular tube of the outer ring,
a second rigid, noncompliant tubular hoop having a split therein, the split forming open ends of the second tubular hoop, the second tubular hoop being positioned in the second lumen of the second circular tube of the outer ring,
a first core positioned in the lumen of the first tubular hoop, and
a second core positioned in the lumen of the second tubular hoop;
and
a distensible sleeve, the sleeve including a first, distal end and a second, proximal end, the first, distal end of the sleeve being coupled to the inner ring of the wound retractor and the second, proximal end of the sleeve being coupled to the outer ring of the wound retractor,
wherein, the outer ring of the wound retractor being substantially rigid and noncompliant.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/548,767Filed 12 Oct 2006 · us provisional application
Priority: 14 Oct 2005
Published: US 2007/0088202 A119 Apr 2007
Granted: 27 Apr 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification19 codes

A61B 17/0293
For holding wounds open, e.g. retractors; Tractors: with ring member to support retractor elements
A61B 17/02
Surgical instruments, devices or methods: for holding wounds open, e.g. retractors; Tractors
A61B 17/0218
For holding wounds open, e.g. retractors; Tractors: for minimally invasive surgery
A61B 17/3423
Cannulas: access ports, e.g. toroid shape introducers for instruments or hands

Family

Application60/726,826Us provisional application · filed 14 Oct 2005
Application60/745,730Us provisional application · filed 26 Apr 2006
Application60/803,346Us provisional application · filed 26 May 2006
Application60/803,965Us provisional application · filed 5 Jun 2006
Application60/828,089Us provisional application · filed 4 Oct 2006
US 2007/0088202 A1Pre-grant publication · published 19 Apr 2007
US 7,704,207 B2This patent

From the US filing history. Foreign family members aren’t listed.