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公开(公告)号：US10703050B2
公开(公告)日：2020-07-07
申请号：US15828253
申请日：2017-11-30
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Yunbing Wang , Xiao Ma , Rommel Lumauig
Abstract: A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized.
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公开(公告)号：US10660773B2
公开(公告)日：2020-05-26
申请号：US15432837
申请日：2017-02-14
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Karen J. Wang , Edward P. Garcia , Boyd V. Knott , Jill A. McCoy , Ashleigh Z. Sheehy
IPC: B29C65/66 , A61F2/958 , B29C65/00 , B29C67/00 , B29C65/78 , A61F2/95 , A61F2/915 , A61F2/04 , B29L28/00 , B29L31/00 , B29C65/82
Abstract: A medical device includes a balloon expanded scaffold crimped to a catheter having a balloon. The scaffold has a network of rings formed by struts connected at crowns and links connecting adjacent rings. The scaffold is crimped to the balloon by a process that includes using protective polymer sheaths or sheets during crimping, and adjusting the sheaths or sheets during the crimping to avoid or minimize interference between the polymer material and scaffold struts as the scaffold is reduced in size.
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公开(公告)号：US10575973B2
公开(公告)日：2020-03-03
申请号：US15950486
申请日：2018-04-11
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Diem Uyen Ta , Senthil Kumar Eswaran
Abstract: The invention is directed to an expandable stent for implantation in a body lumen, such as an artery, and a method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cylindrical elements generally aligned on a common axis and interconnected by one or more links. A Y-shaped member comprised of a link and a U-shaped member has relief dimples formed in the curved portion of a valley to reduce localized stress and thereby reduce fatigue failure that can lead to link structure failure.
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公开(公告)号：US10449339B2
公开(公告)日：2019-10-22
申请号：US15449462
申请日：2017-03-03
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Bruce M. Wilson , Kerry J. Williams
Abstract: Catheter having a hypotube with a skive defined by a first angled cut, an axial cut, and a second angled cut. A midshaft member includes a guidewire lumen and an inflation lumen in fluid communication with an inflation lumen of the hypotube, the inflation lumen of the midshaft member configured to receive at least a portion of the hypotube. A distal tubular shaft member extends distally from the midshaft member. The distal tubular shaft member has a guidewire lumen and an inflation lumen defined therein, the guidewire lumen of the distal tubular shaft member in fluid communication with the guidewire lumen of the midshaft member. The inflation lumen of the distal tubular shaft member is in fluid communication with the inflation lumen of the midshaft member and a balloon is coupled to the distal tubular shaft member and in fluid communication with the inflation lumen.
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公开(公告)号：US10426934B2
公开(公告)日：2019-10-01
申请号：US14843372
申请日：2015-09-02
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Kerry J. Williams , George Doratt
Abstract: Balloon catheter includes an outer shaft having a hypotube and a monolithic single-layer distal outer member, a balloon in fluid communication with an inflation lumen, and a monolithic inner tubular member having a guidewire lumen defined therethrough. The outer shaft has the inflation lumen defined therethrough. The monolithic single-layer distal outer member is necked to a reduced diameter along an entire length thereof. A proximal end of the monolithic single-layer distal outer member is coupled to the hypotube. A distal section of the hypotube comprises a skive defined by a first angled cut, an axial cut, and a second angled cut. The balloon has a proximal balloon shaft coupled to a distal end of the monolithic single-layer distal outer member. The monolithic inner tubular member extends distally from a proximal port in the monolithic single-layer distal outer member through the balloon to form a tip.
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Patent Agency Ranking
公开(公告)号：US10426473B2
公开(公告)日：2019-10-01
申请号：US15788636
申请日：2017-10-19
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Chad Abunassar , Koji J. Kizuka , Casey M. Barbarino , Brandon W. Chu , Travis R. Marsot , Shengmin Mei
IPC: A61B17/08 , A61F2/24 , A61B17/122 , A61B17/00 , A61B17/128
Abstract: A device for connecting together two opposing leaflets of a valve in a patient's heart, comprising: a first clip having a generally U-shape, comprising a first prong and a second prong, and a first bridge connecting the first prong to the second prong; a second clip having a generally U-shape, comprising a third prong and a fourth prong, and a second bridge connecting the third prong to the fourth prong; a third clip having a generally U-shape, comprising a fifth prong and a sixth prong, and a third bridge connecting the fifth prong to the sixth prong, wherein the third prong has a first elongate axis and the fifth prong has a second elongate axis and the third prong and the fifth prong are positioned to extend adjacent to and parallel with the first prong, and are configured to rotate about the first elongate axis and the fifth elongate axis respectively.
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公开(公告)号：US20190254849A1
公开(公告)日：2019-08-22
申请号：US15900116
申请日：2018-02-20
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Stephen Craig Olson, JR. , Senthil Eswaran , Erik Eli
Abstract: A balloon comprising: a center portion having a proximal end, a distal end opposite the proximal end, and a length between the proximal end and the distal end. The center portion comprises: a first nominal diameter and a first radial modulus at the proximal end; a second nominal diameter and a second radial modulus at the distal end; further wherein, the first nominal diameter is equal to the second nominal diameter, such that, when the balloon is inflated to a nominal pressure, the center portion has a constant diameter over the length; and further wherein, the first radial modulus is smaller than the second radial modulus, such that, when the balloon is inflated above a nominal pressure, the center portion adopts a tapered shape in which the proximal end has a first stretched diameter and the distal end has a second stretched diameter, the first stretched diameter being larger than the second stretched diameter.
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公开(公告)号：US10342688B2
公开(公告)日：2019-07-09
申请号：US15403324
申请日：2017-01-11
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Bin Huang , David C. Gale , Daniel Castro
Abstract: A method of crimping a stent on a balloon of a catheter assembly is provided. A polymeric stent is disposed over a balloon in an inflated configuration. The stent is crimped over the inflated balloon to a reduced crimped configuration so that the stent is secured onto the balloon. The balloon wall membrane is wedged or pinched between the strut elements of the stent for increasing the retention of the stent on the balloon.
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公开(公告)号：US20190133581A1
公开(公告)日：2019-05-09
申请号：US16241647
申请日：2019-01-07
Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
Inventor： Michael F. Wei
IPC: A61B17/08 , A61B17/128 , A61B17/122
Abstract: The invention provides improved devices, systems, and methods for tissue approximation and repair at treatment sites. The invention provides devices, systems, and methods that may more successfully approximate and repair tissue by improving the capture of tissue into the devices. The invention may be a one-way mechanism that allows tissue to enter the mechanism but not easily exit, such as a leaf-spring, a protrusion, a pivoting arm and one or more frictional elements.
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公开(公告)号：US20190125536A1
公开(公告)日：2019-05-02
申请号：US15796629
申请日：2017-10-27
Applicant: Abbott Cardiovascular Systems Inc.
Inventor： Santosh Prabhu , Jacob L. Greenberg , Koji J. Kizuka , Travis Marsot
Abstract: A method for improving the function of a valve in the heart of a patient, comprising attaching, to a leaflet of the valve, an element that is responsive to a magnetic field; positioning, outside of the heart of the patient, a coil connected to a source of electric energy; activating the source of electric energy to provide an oscillating current in the coil; and thereby providing an oscillating magnetic field through the coil to effect movement of the element and the leaflet.
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