US 9,808,271 B2
Clot retrieval system
Arthur John Ulm, III, Nashville, TN (US)
Assigned to Legacy Ventures LLC, Nashville, TN (US)
Filed by Legacy Ventures, LLC, Nashville, TN (US)
Filed on Jun. 21, 2017, as Appl. No. 15/629,703.
Application 15/629,703 is a continuation in part of application No. 15/611,762, filed on Jun. 1, 2017.
Application 15/611,762 is a continuation of application No. 15/610,209, filed on May 31, 2017.
Application 15/610,209 is a continuation in part of application No. 15/449,901, filed on Mar. 3, 2017.
Application 15/449,901 is a continuation in part of application No. 15/417,505, filed on Jan. 27, 2017.
Application 15/417,505 is a continuation in part of application No. 15/374,307, filed on Dec. 9, 2016.
Application 15/374,307 is a continuation in part of application No. 15/158,137, filed on May 18, 2016, granted, now 9,566,412, issued on Feb. 14, 2017.
Application 15/158,137 is a continuation in part of application No. 14/794,783, filed on Jul. 8, 2015.
Application 14/794,783 is a continuation in part of application No. 14/558,712, filed on Dec. 2, 2014, granted, now 9,155,552, issued on Oct. 13, 2015.
Application 14/558,712 is a continuation of application No. 14/558,705, filed on Dec. 2, 2014, granted, now 9,173,668, issued on Nov. 3, 2015.
Application 14/558,705 is a continuation in part of application No. 14/147,491, filed on Jan. 3, 2014, granted, now 8,900,265, issued on Dec. 2, 2014.
Application 14/794,783 is a continuation in part of application No. PCT/US2015/010178, filed on Jan. 5, 2015.
Application PCT/US2015/010178 is a continuation in part of application No. 14/558,712, filed on Dec. 2, 2014, granted, now 9,155,552, issued on Oct. 13, 2015.
Application 14/558,712 is a continuation of application No. 14/558,705, filed on Dec. 2, 2014, granted, now 9,173,668, issued on Nov. 3, 2015.
Application 14/558,705 is a continuation in part of application No. 14/147,491, filed on Jan. 3, 2014, granted, now 8,900,265, issued on Dec. 2, 2014.
Application 14/794,783 is a continuation in part of application No. PCT/US2015/031447, filed on May 18, 2015.
Application 15/158,137 is a continuation in part of application No. PCT/US2015/039830, filed on Jul. 9, 2015.
Claims priority of provisional application 61/994,934, filed on May 18, 2014.
Claims priority of provisional application 61/994,919, filed on May 18, 2014.
Prior Publication US 2017/0290600 A1, Oct. 12, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/221 (2006.01); A61B 17/12 (2006.01); A61B 17/00 (2006.01); A61B 17/22 (2006.01)
CPC A61B 17/221 (2013.01) [A61B 17/12036 (2013.01); A61B 17/12109 (2013.01); A61B 2017/00323 (2013.01); A61B 2017/00867 (2013.01); A61B 2017/00893 (2013.01); A61B 2017/22084 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A system for removing objects from an interior lumen of an animal, the system comprising:
a pull wire having a proximal end and a distal end;
a distal body attached to the pull wire and comprising a distal body proximal end comprising a distal body proximal junction, a distal body distal end comprising a distal body distal junction, a distal body length extending from the distal body proximal end to the distal body distal end, a distal body longitudinal axis extending from the distal body proximal junction to the distal body distal junction, and a distal body height and width perpendicular to the distal body length, the distal body comprising:
a distal body outer body extending from the distal body proximal end to the distal body distal end, the distal body outer body comprising the distal body proximal junction and the distal body distal junction, the distal body outer body comprising a distal body outer body perimeter separating a distal body outer body interior from a distal body outer body exterior, the distal body outer body comprising a basket comprised of a plurality of cells spaced about the distal body outer body perimeter and formed by a plurality of basket memory metal strips, wherein at least some of the basket memory metal strips are located at a distal end of the basket, wherein each of the basket memory metal strips located at the distal end of the basket have a distal end, and wherein each of the distal ends of the basket memory metal strips located at the distal end of the basket converge at, and are attached to, the distal body distal junction;
a distal body inner body comprised of a plurality of braided mesh openings formed by a plurality of woven linear strands, the distal body inner body having a distal body inner body perimeter, each woven linear strand rotating about the distal body inner body perimeter relative to the distal body longitudinal axis a plurality of times in a helical fashion, the distal body inner body comprising a distal body inner body proximal end and a distal body inner body distal end,
wherein the distal body has a relaxed state wherein the distal body has a first height and a first width, and a collapsed state wherein the distal body has a second height and a second width, the second height less than the first height, the second width less than the first width,
wherein the system further comprises a catheter having an interior, a proximal end leading to the interior and a distal end leading to the interior, the catheter comprised of a biocompatible material and configured to envelope the distal body when the distal body is in the collapsed state,
wherein the woven linear strands comprise a proximal end and a distal end, and at least some of the distal ends of the woven linear strands are attached to the distal body distal junction,
wherein, in the relaxed state, the median surface area of the cells is larger than the median surface area of the braided mesh openings,
wherein, the distal body inner body and the distal body outer body each have a length generally parallel to the distal body length, the distal body inner body and distal body outer body lengths configured to elongate upon moving from the relaxed state to the collapsed state,
wherein, upon moving from the relaxed state to the collapsed state, the length of the distal body inner body is configured to elongate a greater percentage than the length of the distal body outer body,
wherein, upon moving from the relaxed state to the collapsed state, the distal body inner body is configured to elongate proximally within the distal body outer body interior toward the distal body proximal junction,
wherein, in the relaxed state, the distal body inner body proximal end is located a first distance distal from the distal body proximal junction,
wherein, in the collapsed state, the distal body inner body proximal end is located a second distance distal from the distal body proximal junction, the second distance less than the first distance,
wherein, in the collapsed state and in the relaxed state, the distal body inner body is located in the distal body outer body interior,
wherein the woven linear strands rotate about the distal body inner body perimeter relative to the distal body longitudinal axis a fewer number of times per unit of length in the collapsed state as compared to the relaxed state, and
further wherein the distal body inner body comprises an active agent when the distal body inner body is in the catheter interior.