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1. 发明申请

WO2020251777A1 ORIENTABLE INTRACRANIAL OCCLUSION DEVICE AND METHOD 审中-公开
公开(公告)号：WO2020251777A1
公开(公告)日：2020-12-17
申请号：PCT/US2020/035017
申请日：2020-05-28
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61F2/02 , A61F2/04 , A61F2/06 , A61F2/07 , A61M25/00 , A61M25/01 , A61M25/09
摘要： An orientable intravascular device having a "twelve o'clock" marker on a proximal and distal end for treating an aneurysm, including a packaging catheter with an identical fixed non round shaped inner lumen, a pusher wire having an occlusion device releasably disposed on the distal end of said pusher wire, preloaded at a fixed circumferential orientation, with corresponding markers on the outside of said packaging catheter, a hub having an inner lumen that is shaped to marry with the outer lumen of the packaging catheter to deliver a delivery wire and occlusion stent in a predicted orientation, and maintaining such orientation as the wire and stent are advanced through said delivery catheter, and while said delivery catheter is withdrawn. Methods of using same are disclosed.

2. 发明申请

WO2021051110A1 MESH CAP FOR AMELIORATING OUTPOUCHINGS 审中-公开
公开(公告)号：WO2021051110A1
公开(公告)日：2021-03-18
申请号：PCT/US2020/050783
申请日：2020-09-14
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61F2/02 , A61F2/06 , A61F2/04 , A61B17/00
摘要： A self-expandable occluding device can both cover the neck of an outpouching and serve as a permanent embolic plug thereby immediately stabilizing the outpouching. The self-expandable device effectively covers the neck of an outpouching with, for example, a mesh, or other at least partially occluding component, in a desired orientation across the neck of the outpouching without projecting into the parent vessel. The device incorporates elements which immediately stabilize the device in the outpouching, in effect, functioning as a permanent embolic plug. An embolic disc is combined with retention arms of flexible material, which deploy within the outpouching and provide immediate stabilization thereby retaining the occluding component or mesh across the neck of the outpouching. In illustrative embodiments, the arms are in the form of coils configured to deploy into three dimensional structures.

3. 发明申请

WO2021225743A1 TORUS BALLOON WITH ENERGY EMITTERS FOR INTRAVASCULAR LITHOTRIPSY 审中-公开
公开(公告)号：WO2021225743A1
公开(公告)日：2021-11-11
申请号：PCT/US2021/026523
申请日：2021-04-09
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61M25/10 , A61B18/00 , A61B18/08 , A61F2/01 , A61F2/06 , A61M25/00
摘要： A catheter for intraluminal lithotripsy including an outer wall, at least one balloon extending from the outer wall, the balloon having a first portion, a second portion proximal of the first portion and an intermediate portion between the first and second portions such that a transverse dimension of the intermediate portion is less than a transverse dimension of the first and second portions. The catheter includes a first lumen, at least one energy emitter mounted on the balloon for emitting energy to break down or soften calcium and a connector connecting the at least one energy emitter to an external energy source, the connector extending through the catheter.

4. 发明申请

WO2022260874A1 ARCH FULCRUM CATHETERS 审中-公开
公开(公告)号：WO2022260874A1
公开(公告)日：2022-12-15
申请号：PCT/US2022/031231
申请日：2022-05-27
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61M25/01 , A61M25/10 , A61M5/00
摘要： A catheter configured to receive a supplemental medical device to facilitate treatment of a vascular anomaly within a blood vessel having a proximal hole and a distal hole. A lumen extends between the proximal hole and the distal hole and is configured to receive the supplemental medical device. At least one balloon element can be provided proximally of the distal end hole. At least one side hole is in communication with the lumen. Each side hole is configured to receive the supplemental medical device such that the supplemental medical device is extendable into the blood vessel through an elected side hole to increase access to a target site in the blood vessel and reduce rotational manipulation of the catheter required during an endovascular procedure. The catheter can be rotatable and steerable.

5. 发明申请

WO2022159310A1 CAPED STENT 审中-公开
公开(公告)号：WO2022159310A1
公开(公告)日：2022-07-28
申请号：PCT/US2022/012083
申请日：2022-01-12
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61F2/07 , A61F2/00 , A61F2/82 , A61F2/852 , A61F2/86 , A61L31/14
摘要： An intravascular stent having a stent body and at least one cover overlying the stent body to cover the first portion of the stent body. The cover has a first region attached to the stent body and a second region unattached to the stent body. Multiple covers can be attached to the stent body in overlapping arrangement, each cover having a free unattached end. The free ends reduce the overall stiffness of the stent.

6. 发明申请

WO2021154378A1 MICROCATHEERS FOR INJECTING EMBOLIC LIQUID AGENTS INTO VESSELS 审中-公开
公开(公告)号：WO2021154378A1
公开(公告)日：2021-08-05
申请号：PCT/US2020/062486
申请日：2020-11-27
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61B17/12 , A61B17/00 , A61M5/00 , A61M25/00 , A61M25/14
摘要： A device and method for injecting liquid embolic agents utilizing a "plug and push" technique, The device/catheter has at least one side hole or an externally swellable region which creates a plug upstream of the distalmost portion of the catheter and thereby ameliorates the suboptimal outcomes associated with creating a plug upstream of a distal end hole via injecting embolic agents only at the distalmost portion of the catheter. The catheter can include a flow restricting structure to initially block flow of the liquid embolic agent out the distal end hole and direct flow of the liquid embolic agent through the one or more side holes.

7. 发明申请

WO2020251776A1 VESSEL ACCESS CATHETER METHOD OF USE 审中-公开
公开(公告)号：WO2020251776A1
公开(公告)日：2020-12-17
申请号：PCT/US2020/035012
申请日：2020-05-28
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61M25/00 , A61B17/00
摘要： Methods of using a medical device comprising a tube having first segment comprising a primary opening at the proximal end nearest an external termination device; and a second segment comprising a secondary opening at the distal end; and a side-hole dividing the first segment and the second segment, wherein the internal diameter of the first segment is greater than the internal diameter of the second segment, and the tube has no pre-formed curved configuration. The first segment extends from the primary opening to the side-hole and the second segment extends from the side-hole to the secondary opening. The side-hole and first segment form a non-support lumen, and the second segment forms a support lumen. The support lumen is effective to provide stability to the non-support lumen of the tube, to anchor the tube within an anchor area, and to prevent prolapse of the medical device elements due to a counterforce against the tube by the second device(s) being delivered through the tube to a more distal location of a target area; and to facilitate placement of the second medical device into the target area.

8. 发明申请

WO2022098591A1 ORIENTABLE INTRAVASCULAR DEVICES AND METHODS 审中-公开
公开(公告)号：WO2022098591A1
公开(公告)日：2022-05-12
申请号：PCT/US2021/057506
申请日：2021-11-01
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61F2/06 , A61F2/82 , A61F2/88
摘要： An orientable intravascular device having a "twelve o'clock" marker on a. proximal and distal end for treating an aneurysm, including a packaging catheter with an identical fixed non-circular shaped inner lumen, a pusher wire having an occlusion device releasably disposed on the distal end of said pusher wire, pre-loaded at a fixed circumferential orientation, with corresponding markers on the outside of said packaging catheter, a hub having an inner lumen that is shaped to marry with the outer lumen of the packaging catheter to deliver a delivery wire and occlusion stent in a predicted orientation, and maintaining such orientation as the wire and stent are advanced through said delivery catheter, and while said delivery catheter is withdrawn. Methods of using same are disclosed.

9. 发明申请

WO2021225742A1 BYPASS CATHETER 审中-公开
公开(公告)号：WO2021225742A1
公开(公告)日：2021-11-11
申请号：PCT/US2021/026521
申请日：2021-04-09
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61M25/00 , A61M25/10 , A61F2/01
摘要： A surgical apparatus for treating a vessel blockage in a vessel of a patient having an elongated member having an outer wall, a first hole at a distal portion and a second hole spaced proximally from the first hole positioned in a side wall. A first lumen is provided within the elongated member for blood flow through the second hole, through the lumen and exiting the first hole to maintain blood flow during treatment of the vessel blockage. A motor driven impeller is rotatable during blood flow through the first lumen to enhance blood flow as blood flows into the second hole positioned proximal of the vessel blockage and exits the first hole distal of the vessel blockage during injection of fluid through one or more openings to treat the vessel blockage.

10. 发明申请

WO2021071766A1 TRANS-RADIAL ACCESS ENDOVASCULAR CATHETERS AND METHODS OF USE 审中-公开
公开(公告)号：WO2021071766A1
公开(公告)日：2021-04-15
申请号：PCT/US2020/054209
申请日：2020-10-05
申请人： WALZMAN, Daniel, Ezra
发明人： WALZMAN, Daniel, Ezra
IPC分类号： A61B17/00 , A61B17/32 , A61B18/00 , A61M25/00 , A61M25/01
摘要： Devices and methods for establishing trans-radial access for medical intervention are described. In particular, some embodiments are optimized for consistently safely achieving complete cerebral angiography via a single trans-radial access site. A system may include a catheter with at least two active steering sites. Some embodiments may include at least one balloon. The methods include using said steering mechanisms to help guide and support said catheter. In some embodiments, additional use is made of at least one vascular arch to provide further support and prevent kickback and prolapse of said catheter and any additional devices passed therethrough.

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