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1. 发明申请

US20230037979A1 Double Lumen Pigtail Catheter and HOCM Gradient Catheter 有权
公开(公告)号：US20230037979A1
公开(公告)日：2023-02-09
申请号：US17817668
申请日：2022-08-05
申请人： Wesley Robert Pedersen , William Joseph Drasler
发明人： Wesley Robert Pedersen , William Joseph Drasler
IPC分类号： A61M25/00 , A61M25/01
摘要： Pigtail catheters and relates methods for measuring a pressure gradient across a bodily narrowing are disclosed. A pigtail catheter can comprise a proximal shaft segment and a distal shaft segment. The proximal shaft segment can include double lumen tubing defining a proximal pressure lumen and a non-coaxial, distal pressure lumen. In an example, the distal pressure lumen has a generally circular cross-sectional shape, and the proximal pressure lumen has a generally crescent or kidney cross-sectional shape that wraps partially around the distal pressure lumen. The distal shaft segment can include at least one distal orifice positionable distal to the bodily narrowing and at least one proximal orifice positionable proximal to the bodily narrowing. Each orifice can have a diameter of at least about 0.018 inches, for example. A manifold can be coupled to a proximal end of the proximal shaft segment and can include a proximal pressure port in communication with the proximal pressure lumen and a distal pressure port in communication with the distal pressure lumen.

2. 发明申请

US20220118261A1 CURLED SHAFT TEMPORARY PACING LEAD 有权
公开(公告)号：US20220118261A1
公开(公告)日：2022-04-21
申请号：US17075409
申请日：2020-10-20
申请人： Wesley Robert Pedersen , Paul Sorajja , Brett Allyn Williams , William J. Drasler
发明人： Wesley Robert Pedersen , Paul Sorajja , Brett Allyn Williams , William J. Drasler
IPC分类号： A61N1/37 , A61N1/05
摘要： A pacing lead for temporary atraumatic placement via transvascular access on an endocardial surface of a heart chamber of an animal body. The pacing lead body has a curled shaft at the distal end region of the pacing lead body having a plurality of electrode sites. Each of the electrode sites is individually connected via an electrode conduction wire to a switch box, which receives generator signals from a pulse generator and directs the electrode generator signal to specific electrode sites. A push-pull element is connected to the lead body distal end. A tension-compression member connects to the push-pull element and provides tension and compression to the push-pull element.

3. 发明申请

US20190167305A1 TRANSSEPTAL GUIDE WIRE PUNCTURE SYSTEM 审中-公开
公开(公告)号：US20190167305A1
公开(公告)日：2019-06-06
申请号：US16209426
申请日：2018-12-04
申请人： Wesley Robert Pedersen , Paul Sorajja
发明人： Wesley Robert Pedersen , Paul Sorajja
IPC分类号： A61B17/34 , A61M25/09
摘要： A trans-atrial septal catheter system for delivery of a steerable sheath into the left atrium contains three components. The first component is a three-segmented needle-guide wire composed of a distal needle designed to flex sharply in relation to the conjoined looped guide wire segment after fossa ovalis puncture and needle advancement. The distal guide wire loops are advanced into the left atrium maintaining the angled needle in a central location relevant to the loops for preserving an atraumatic position while stabilizing the loops in the left atrium. The elongated proximal extra stiff guide wire segment is conjoined to the looped segment which crosses the fossa ovalis and extends proximally to become externalized to the femoral vein. This segment is extra stiff and significantly elongated to permit catheter and device exchanges. The guide wire serves as a support rail over which the dilator and sheath can be advanced into the left atrium. This transseptal system is uniquely forward looking and permits cautious and iterative delivery of the dilator into the fossa ovalis for “tenting” by way of a proximal sheath activator that interacts with the dilator. The proximal externalized GW is then advanced to permit puncture of the fossa ovalis. After puncturing a precise location of the fossa ovalis, the needle and coiled guide wire loops are further advanced into the left atrium. With the proximal activator, the dilator is advanced across the fossa ovalis into the left atrium using single-handed maneuvering for separate dilator advancement and steering of the sheath by way of turning or actuating the sheath handle.

4. 发明授权

US10773076B2 Temporary pacing lead 有权
公开(公告)号：US10773076B2
公开(公告)日：2020-09-15
申请号：US15642084
申请日：2017-07-05
申请人： Wesley Robert Pedersen , Paul Sorajja
发明人： Wesley Robert Pedersen , Paul Sorajja
IPC分类号： A61N1/05
摘要： A temporary pacing lead has an atraumatic curled distal region with multiple cathodes and distal pressure measurement to allow positioning and repositioning within the heart chamber without fluoroscopic or echo guidance. The curled distal region provides definite contact with two opposing walls of the ventricular chamber to ensure electrical signal capture without trauma to the endocardial surface. A stylet located in the pacing lead lumen assists in introducing, placing, and removing the pacing lead from the heart. The flexible distal region provides safe removal of the temporary lead following completion of use.

5. 发明申请

US20180353751A1 TEMPORARY PACING LEAD 审中-公开
公开(公告)号：US20180353751A1
公开(公告)日：2018-12-13
申请号：US15642084
申请日：2017-07-05
申请人： Wesley Robert Pedersen , Paul Sorajja
发明人： Wesley Robert Pedersen , Paul Sorajja
IPC分类号： A61N1/05
CPC分类号： A61N1/056 , A61N2001/0578
摘要： A temporary pacing lead has an atraumatic curled distal region with multiple cathodes and distal pressure measurement to allow positioning and repositioning within the heart chamber without fluoroscopic or echo guidance. The curled distal region provides definite contact with two opposing walls of the ventricular chamber to ensure electrical signal capture without trauma to the endocardial surface. A stylet located in the pacing lead lumen assists in introducing, placing, and removing the pacing lead from the heart. The flexible distal region provides safe removal of the temporary lead following completion of use.

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