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公开(公告)号：US20230293861A1
公开(公告)日：2023-09-21
申请号：US18191400
申请日：2023-03-28
Applicant: CROSSLINER, INC.
Inventor： Tim A. Fischell , Frank S. Saltiel
CPC classification number: A61M25/104 , A61M25/0102 , A61M25/008 , A61M25/005 , A61M2205/0266 , A61M2025/0081 , A61M2025/1081 , A61M2205/6081 , A61M2210/12 , A61M25/09
Abstract: The subject guide catheter extension/pre-dilatation system includes an outer delivery sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. The inner member is configured with a tapered distal tip having a delivery micro-catheter and a pre-dilatation balloon member attached to the tapered distal tip in proximity to the micro-catheter. The outer delivery sheath and the inner member are modified for different engagement/disengagement mechanisms operation. The delivery micro-catheter provides for an improved crossability for the balloon member to the treatment site in an atraumatic, expedited and convenient fashion. During the cardiac procedure, a guidewire and a guide catheter are advanced to the vicinity of the treatment site within a blood vessel. Subsequent thereto, the inner member and outer delivery sheath, in their engaged configuration, are advanced along the guidewire inside the guide catheter towards the site of treatment. Once at the treatment site, the balloon member is inflated for pre-dilatation treatment. Subsequently, the inner member is disengaged and retracted from the outer delivery sheath, and a stent is delivered to the treatment site inside the outer delivery sheath.
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公开(公告)号：US11642500B2
公开(公告)日：2023-05-09
申请号：US16793120
申请日：2020-02-18
Applicant: CROSSLINER, INC.
Inventor： Tim A. Fischell , Frank S. Saltiel
CPC classification number: A61M25/104 , A61M25/005 , A61M25/008 , A61M25/0102 , A61M25/09 , A61M2025/0081 , A61M2025/1079 , A61M2025/1081 , A61M2205/0266 , A61M2205/6081 , A61M2210/12
Abstract: The subject guide catheter extension/pre-dilatation system includes an outer delivery sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. The inner member is configured with a tapered distal tip having a delivery micro-catheter and a pre-dilatation balloon member attached to the tapered distal tip in proximity to the micro-catheter. The outer delivery sheath and the inner member are modified for different engagement/disengagement mechanisms operation. The delivery micro-catheter provides for an improved crossability for the balloon member to the treatment site in an atraumatic, expedited and convenient fashion. During the cardiac procedure, a guidewire and a guide catheter are advanced to the vicinity of the treatment site within a blood vessel. Subsequent thereto, the inner member and outer delivery sheath, in their engaged configuration, are advanced along the guidewire inside the guide catheter towards the site of treatment. Once at the treatment site, the balloon member is inflated for pre-dilatation treatment. Subsequently, the inner member is disengaged and retracted from the outer delivery sheath, and a stent is delivered to the treatment site inside the outer delivery sheath.
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公开(公告)号：US11491313B2
公开(公告)日：2022-11-08
申请号：US15899603
申请日：2018-02-20
Applicant: CROSSLINER, INC.
Inventor： Tim A. Fischell , Frank S. Saltiel
Abstract: The subject guide catheter extension system with a micro-catheter delivery catheter includes an outer sheath, an inner member extending within the sheath, and a mechanism for engagement/disengagement of the inner member to/from the sheath. Several mechanisms of engagement/disengagement between the inner and outer members are provided including a friction mechanism, threaded mechanism, pull away sheath, and engagement/disengagement mechanism for pusher's handles. The sheath and the inner member are modified for different engagement/disengagement mechanisms operation. A micro-catheter delivery system provides for an improved atraumatic crossability to the treatment site in an expedited and simplified fashion. During a procedure, a guidewire along with a guide catheter are advanced to the vicinity of the treatment site within a blood vessel. Subsequent thereto, the subject guide catheter extension system is manipulated to advance the micro-catheter along the guidewire inside the guide catheter towards and beyond the site of interest. Once the micro-catheter is in place, the outer sheath slides along the micro-catheter until reaching the lesion, and then the inner member is removed from the sheath, and the sheath then is ready for passing the treatment catheter (stent/balloon) towards the lesion to be treated.
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