MEDICAL CATHETER WITH DEFLECTION PULL RING AND DISTAL TIP ATTACHMENT APPARATUS

    公开(公告)号:US20170296787A1

    公开(公告)日:2017-10-19

    申请号:US15585195

    申请日:2017-05-03

    Inventor: Daniel J. Potter

    Abstract: A medical catheter includes a deflectable and compressible catheter shaft; a pull ring near a distal end of the catheter shaft; a distal tip that includes a tip element and a mounting shaft; and an attachment apparatus for securely attaching the distal tip to the catheter shaft, the attachment apparatus including a compression ring which compresses the catheter shaft and the mounting shaft together. The compression ring can be located around the catheter shaft to compress the catheter shaft against an outer surface of the mounting shaft, or within the catheter shaft to compress the catheter shaft outwardly against an inner surface of the mounting shaft. The catheter can be a non-irrigated ablation catheter, with the tip element being a tip electrode, and it can be an irrigated ablation catheter, with the distal tip including a fluid manifold.

    DEVICE FOR REDUCING AXIAL SHORTENING OF CATHETER OR SHEATH DUE TO REPEATED DEFLECTION

    公开(公告)号:US20170136213A1

    公开(公告)日:2017-05-18

    申请号:US15342539

    申请日:2016-11-03

    Abstract: A deflectable medical device incorporates a strut that is configured to reduce or eliminate axial shortening of the deflectable portion of the medical device, for example, the deflectable distal end portion of a catheter or access sheath. The strut may is coaxially disposed in the medical device in the section that is contemplated to undergo the repeated deflection. The strut provides improved column strength and axial restoration. The strut may be stent-like device, an elongate device having opposing ends coupled by a connecting lattice involving a plurality of helical connecting elements or a tube having a plurality of circumferentially-extending slots arranged in longitudinally-extending rows.

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