US-20260123946-A1 - DEVICES FOR RETRIEVING AN OBSTRUCTION IN A BODILY DUCT OF A PATIENT

US20260123946A1US 20260123946 A1US20260123946 A1US 20260123946A1US-20260123946-A1

Abstract

A device for capturing and removing an obstruction in a bodily duct of a patient. The device includes a cylindrical body having a circumference and a longitudinal axis. According to some implementations the cylindrical body is comprised of a plurality of closed cell structures arranged in diagonal rows around the longitudinal axis. At least some of closed cell structures have substantially the same shape and size. According to some implementations at least some of the closed cell structures of substantially the same shape and size occupy a same circumferential location in the cylindrical body and are longitudinally separated from one another by no less than two, three, four or more diagonal rows of closed cell structures. According to other implementations the closed cell structures include diagonally extending struts having at least a curve portion and a straight portion.

Inventors

Vera Shinsky
Scott Wilson

Assignees

Highway 1 Medical, Inc.

Dates

Publication Date: 20260507
Application Date: 20250707

Claims (20)

1 - 20 . (canceled)
21 . A device for capturing an obstruction in a bodily duct of a patient, the device comprising: a cylindrical body having a circumference and a longitudinal axis and including a plurality of cell structures formed by struts, the plurality of cell structures including first, second, third, fourth and fifth cell structures, the first cell structure sharing at least one strut with each of the second, third, fourth and fifth cell structures, each of the plurality of cell structures includes first, second, third, fourth, fifth and sixth struts, each of the first, second, third, fourth, fifth and sixth struts having a proximal end and a distal end, the proximal end of the first strut being directly attached to the proximal end of the second strut at a first longitudinal location, the distal end of the third strut being directly attached to the distal end of the fourth strut at a second longitudinal location distal to the first longitudinal location, the distal end of the first strut being directly attached to the proximal end of the fifth strut at a third longitudinal location, the proximal end of the third strut being directly attached to the distal end of the fifth strut at a fourth longitudinal location, the distal end of the second strut being directly attached to the proximal end of the sixth strut at a fifth longitudinal location, the proximal end of the fourth strut being directly attached to the distal end of the sixth strut at a sixth longitudinal location, the fourth longitudinal location being proximal to the sixth longitudinal location, the proximal and distal ends of the fifth strut being longitudinally aligned with one another and residing at a first circumferential location, the proximal and distal ends of the sixth strut being longitudinally aligned with one another and residing at a second circumferential location, the second circumferential location being spaced apart from the first circumferential location, when the device is cut longitudinally and laid flat on a surface each of the fifth and sixth struts is straight, when the device is cut longitudinally and laid flat on a surface each of the first, second, third and fourth struts includes one or more curved sections and a single straight section.
22 . The device according to claim 21 , wherein when the device is cut longitudinally and laid flat on a surface each of the first, second, third and fourth struts includes a single straight section.
23 . The device according to claim 21 , wherein the one or more curved sections of each of the first, second, third and fourth struts comprise first and second curved sections, each of the first, second, third and fourth struts has a proximal end portion, a distal end portion and a mid-portion, the mid-portion being located between the proximal and distal end portions, the proximal and distal end portions respectively comprising the first and second curved sections and the mid-portion comprising the straight section.
24 . The device according to claim 21 , wherein the first, second, third, fourth and fifth cell structures have a same size and same shape.
25 . The device according to claim 21 , wherein the first cell structure is surrounded by the second, third, fourth and fifth cell structures.
26 . The device according to claim 24 , wherein the first cell structure is surrounded by the second, third, fourth and fifth cell structures.
27 . The device according to claim 24 , wherein the cylindrical body has a proximal end and a distal end and a first of the plurality of cell structures is longitudinally aligned with a second of the plurality of cell structures, the first of the plurality of cell structures being located in the cylindrical body proximally to the second of the plurality of cell structures, each of the first of the plurality of cell structures and the second of the plurality of cell structures having a proximal end and a distal end, an imaginary longitudinal straight line running parallel to the longitudinal axis and joining the distal end of the first of the plurality of cell structures with the proximal end of the second of the plurality of cell structures intersects at least two intervening cell structures, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
28 . The device according to claim 24 , wherein a first of the plurality of cell structures is longitudinally aligned with a second of the plurality of cell structures, an imaginary longitudinal straight line running parallel to the longitudinal axis and joining the fifth struts or the sixth struts of the first of the plurality of cell structures and the second of the plurality of cell structures intersects at least three intervening cell structures, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
29 . The device according to claim 24 , wherein a first of the plurality of cell structures is longitudinally aligned with a second of the plurality of cell structures, an imaginary longitudinal straight line running parallel to the longitudinal axis and joining the fifth struts or the sixth struts of the first of the plurality of cell structures and the second of the plurality of cell structures intersects at least four intervening cell structures, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
30 . The device according to claim 24 , wherein a first of the plurality of cell structures and a second of the plurality of cell structures occupy a same circumferential location and are longitudinally separated by no less than two diagonal rows, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
31 . The device according to claim 24 , wherein a first of the plurality of cell structures and a second of the plurality of cell structures occupy a same circumferential location and are longitudinally separated by no less than three diagonal rows, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
32 . The device according to claim 24 , wherein a first of the plurality of cell structures and a second of the plurality of cell structures occupy a same circumferential location and are longitudinally separated by no less than four diagonal rows, the second of the plurality of cell structures being located nearer the first of the plurality of cell structures than any of another of the plurality of cell structures that are longitudinally aligned with the first of the plurality of cell structures.
33 . The device according to claim 21 , wherein the distal end of the fifth strut and the proximal end of the sixth strut are circumferentially aligned.
34 . The device according to claim 21 , wherein the fourth longitudinal location and fifth longitudinal location are circumferentially aligned.
35 . The device according to claim 21 , further comprising a first antenna having a proximal end and a distal end, the cylindrical body coupled to the distal end of the first antenna, when the device is cut longitudinally and laid flat on a surface at least a portion of the first antenna is straight, the at least a portion of the first antenna being longitudinally aligned with at least one of the fifth and sixth struts.
36 . The device according to claim 35 , further comprising an elongate wire having a proximal end and a distal end, the proximal end of the first antenna being coupled to the distal end of the elongate wire.
37 . A device for capturing an obstruction in a bodily duct of a patient, the device comprising: a cylindrical body having a circumference and a longitudinal axis and including a plurality of cell structures formed by struts, a majority of the plurality of cell structures being of the same size and shape and arranged in diagonal rows around the longitudinal axis, the plurality of cell structures including first, second, third, fourth and fifth cell structures, the first cell structure being surrounded by the second, third, fourth and fifth cell structures and sharing at least one strut with each of the second, third, fourth and fifth cell structures, the plurality of cell structures each includes first, second, third, fourth, fifth and sixth struts, each of the first, second, third, fourth, fifth and sixth struts having a proximal end and a distal end, the proximal end of the first strut being coupled to the proximal end of the second strut at a first longitudinal location, the distal end of the third strut being coupled to the distal end of the fourth strut at a second longitudinal location distal to the first longitudinal location, the distal end of the first strut being coupled to the proximal end of the fifth strut at a third longitudinal location, the proximal end of the third strut being coupled to the distal end of the fifth strut at a fourth longitudinal location, the distal end of the second strut being coupled to the proximal end of the sixth strut at a fifth longitudinal location, the proximal end of the fourth strut being coupled to the distal end of the sixth strut at a sixth longitudinal location, the fourth longitudinal location being proximal to the sixth longitudinal location, the proximal and distal ends of the fifth strut being longitudinally aligned with one another and residing at a first circumferential location, the proximal and distal ends of the sixth strut being longitudinally aligned with one another and residing at a second circumferential location, the second circumferential location being spaced apart from the first circumferential location, when the device is cut longitudinally and laid flat on a surface at least a first portion of each of the first, second, third and fourth struts is curved and at least a second portion of each of the first, second, third and fourth struts is straight none of the first, second, third and fourth struts extending circumferentially beyond the first circumferential location and the second circumferential location.
38 . The device according to claim 37 , wherein each of the first, second, third and fourth struts has a proximal end portion, a distal end portion and a mid-portion, the mid-portion being located between the proximal and distal end portions, the proximal and distal end portions being curved and the mid-portion being straight when the device is cut longitudinally and laid flat on a surface.
39 . A method of manufacturing a device that is configured to capture an obstruction in a bodily duct of a patient, the method comprising: obtaining a cylindrical tube having a circumference and a longitudinal axis: and laser cutting the cylindrical tube to form a cylindrical body having a plurality of closed cell structures arranged in a plurality of diagonal rows disposed around the longitudinal axis, at least some of the plurality of closed cell structures being substantially the same shape and size, at least some of the closed cells structures of substantially the same shape and size occupying a same circumferential location in the cylindrical body and being longitudinally separated from one another by no less than two diagonal rows of closed cell structures.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of application Ser. No. 18/397,309, filed Dec. 23, 2023, which is a continuation of application Ser. No. 17/360,509, filed Jun. 28, 2021, now U.S. Pat. No. 11,883,048, which is a continuation of application Ser. No. 16/275,806, filed Feb. 14, 2019, now U.S. Pat. No. 11,071,558, which is a continuation of application Ser. No. 16/123,517, filed Sep. 6, 2018, now U.S. Pat. No. 10,245,054, which is a continuation of application Ser. No. 15/887,173, filed Feb. 2, 2018, now U.S. Pat. No. 10,179,000. TECHNICAL FIELD The present disclosure relates to devices for retrieving obstructions from bodily ducts. BACKGROUND An obstruction in a bodily duct of a patient can lead to chronic health issues, and even death, if the obstruction is left in place. An example of such an obstruction is an embolus located in a blood vessel of a patient. The embolus may be a blood clot (thrombus), a fat globule (fat embolism) or foreign material. An embolism can cause partial or total blockage of blood flow in the affected vessel, such as a vessel in the neurovasculature of a patient. The capture and removal of such blockages can prevent the occurrence of a stroke or at least partially reverse the effects of a stroke. A urinary tract obstruction is another example in which a blockage inhibits the flow of urine through its normal path (the urinary tract), including the kidneys, ureters, bladder, and urethra. Blockage can be complete or partial and can lead to kidney damage, kidney stones, and infection if not removed. SUMMARY OF THE DISCLOSURE Disclosed herein are devices for capturing and removing obstructions from bodily ducts of a patient. According to some implementations a device for retrieving an obstruction in a bodily duct of a patient is provided that comprises a cylindrical body having a circumference and a longitudinal axis and including a plurality of cell structures of substantially the same size and shape arranged in diagonal rows around the longitudinal axis. According to some implementations the plurality of cell structures each includes first, second, third, fourth, fifth and sixth struts, each of the first, second, third, fourth, fifth and sixth struts having a proximal end and a distal end. According to some implementations the proximal end of the first strut is coupled to the proximal end of the second strut, the distal end of the third strut is coupled to the distal end of the fourth strut, the distal end of the first strut is coupled to the proximal end of the fifth strut, the proximal end of the third strut is coupled to the distal end of the fifth strut, the distal end of the second strut is coupled to the proximal end of the sixth strut, the proximal end of the fourth strut is coupled to the distal end of the sixth strut. According to some implementations the proximal and distal ends of the fifth strut are longitudinally aligned with one another and reside at a first circumferential location and the proximal and distal ends of the sixth strut are longitudinally aligned with one another and reside at a second circumferential location, the second circumferential location being spaced apart from the first circumferential location. According to some implementations, when the retrieval device is cut longitudinally and laid flat on a surface at least a first portion of each of the first, second, third and fourth struts is curved and at least a second portion of each of the first, second, third and fourth struts is straight. According to other implementations, each of the first, second, third and fourth struts has a proximal end portion, a distal end portion and a mid-portion with the mid-portion being located between the proximal and distal end portions, the first and second end portions being curved and the mid-portion being straight when the device is cut longitudinally and laid flat on a surface. According to other implementations a device for capturing and removing an obstruction in a bodily duct of a patient is provided that comprises a cylindrical body having a circumference and a longitudinal axis and including a plurality of closed cell structures arranged in a plurality of diagonal rows disposed around the longitudinal axis. At least some of the plurality of closed cell structures being substantially the same shape and size, at least some of the closed cells structures of substantially the same shape and size occupying a same circumferential location in the cylindrical body and being longitudinally separated from one another by no less than two, three, four or more diagonal rows of closed cell structures. These and other advantages and features will become evident in view of the drawings and the detailed description. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a perspective view of an obstruction retrieval system according to some implementations; FIG. 2A is a perspective view of an obstruction retrieval device according to some imple