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公开(公告)号：US20190328512A1
公开(公告)日：2019-10-31
申请号：US16508625
申请日：2019-07-11
发明人： Hamid Rafi , Russell T. Joseph , Robert Bowes , Uy D. Trinh , Emil Karapetian , Gregory Bak-Boychuk
IPC分类号： A61F2/24
摘要： Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.
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公开(公告)号：US20240277474A1
公开(公告)日：2024-08-22
申请号：US18651890
申请日：2024-05-01
发明人： Brian C. Gray , Tung T. Le , Andrew Oien , Sonny Tran , Thanh Huy Le , Robert Bowes , Maria L. Saravia , Uy D. Trinh , Hamid Rafi , Alejandro J. Froimovich Rosenberg
CPC分类号： A61F2/2436 , A61F2/9517
摘要： Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.
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公开(公告)号：US20230069245A1
公开(公告)日：2023-03-02
申请号：US17822689
申请日：2022-08-26
发明人： Sonny Tran , Jeong Soo Lee , Nasser William Saleh , Ilan Tamir , Daniel J. Scherb , Maxwell Harrison Fine , Alpana Kiran Gowdar , Tri D. Tran , Neal H. Avery , Sarah Ghanbari , Uy D. Trinh , Sovanpheap Mak , Erik Bulman , Raymond Mercado
摘要： Aspects of an expandable sheath can be used in conjunction with a catheter assembly to introduce a prosthetic device, such as a heart valve, into a patient. Such aspects can minimize trauma to the vessel by allowing for temporary expansion of a portion of the introducer sheath to accommodate the delivery apparatus, followed by a return to the original diameter once the prosthetic device passes through. Some aspects can include a sheath with a variable diameter inner liner wound in a spiral slidable configuration and an outer layer. The disclosed sheath is configured to expand from a predetermined rest diameter dr to an expanded diameter de during application of a radial outward force by passage of a medical device through the sheath.
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公开(公告)号：US10357361B2
公开(公告)日：2019-07-23
申请号：US15703888
申请日：2017-09-13
发明人： Hamid Rafi , Russell T. Joseph , Robert Bowes , Uy D. Trinh , Emil Karapetian , Gregory Bak-Boychuk
IPC分类号： A61F2/24
摘要： Pinch devices and access systems that can be used to secure a prosthetic heart valve to a heart valve annulus and to treat valvular insufficiency. A pinch device can be a separate expandable element from the prosthetic heart valve that is first advanced to the annulus and deployed, after which an expandable prosthetic heart valve can be advanced to within the annulus and deployed. The two elements can clamp/pinch the heart valve leaflets to hold the prosthetic heart valve in place. The pinch device can have a flexible, expandable annular frame. A combined delivery system can deliver the pinch device and prosthetic heart valve with just a single access point and aid more accurate coaxial deployment. The pinch device can be mounted near distal end of an access sheath, and a catheter for delivering the prosthetic heart valve can be passed through a lumen of the same access sheath.
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公开(公告)号：US20190105155A1
公开(公告)日：2019-04-11
申请号：US16208457
申请日：2018-12-03
发明人： Brian C. Gray , Tung T. Le , Andrew Oien , Sonny Tran , Thanh Huy Le , Robert Bowes , Maria L. Saravia , Uy D. Trinh , Hamid Rafi , Alejandro J. Froimovich Rosenberg
摘要： Disclosed embodiments of introducer devices provide hemostatic sealing and allow a delivery catheter to be inserted through the introducer seals without the use of a separate loader device that covers a medical device that is mounted on the catheter. Some disclosed introducers comprise a housing, a distal sheath extending distally from the housing and adapted to be inserted into a patient's vasculature, a distal hemostatic seal mounted within the housing and a proximal hemostatic seal mounted within the housing, and a slidable tube positioned within the housing that is movable longitudinally relative to the distal hemostatic seal between a proximal position and a distal position, wherein in the proximal position a distal end of the tube is positioned proximal to the distal hemostatic seal with the distal hemostatic seal closed, and wherein in the distal position the distal end of the tube extends through the distal hemostatic seal.
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