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    Apparatus and method for fractional treatment of skin tissue of a patient and electrode for use in said apparatus
    5.
    发明授权
    Apparatus and method for fractional treatment of skin tissue of a patient and electrode for use in said apparatus 有权

    公开(公告)号：US11963710B2

    公开(公告)日：2024-04-23

    申请号：US17324989

    申请日：2021-05-19

    申请人： POLLOGEN LTD.

    发明人： Amikam Gershonowitz

    IPC分类号： A61B18/14 ,  A61B18/00

    CPC分类号： A61B18/14 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00458 ,  A61B2018/00577 ,  A61B2018/143

    摘要： The present disclosure relates to an apparatus (1) for fractional treatment of skin tissue of a patient. The apparatus (1) comprises a handpiece with a housing, at least one first electrode (11) and at least one second electrode (15) located on a distal end of the handpiece and an energy source, which is connected to said at least one first (11) and said at least one second (15) electrode. The apparatus (1) is adapted for applying radio frequency (RF) energy to the tissue. The at least one second electrode (15) is arranged on a base plate (13) and the at least one first electrode (11) is or comprises a pin or a needle (11), in particular a microneedle, which penetrates the base plate (13) through a through hole (17). The apparatus (1) further comprises a vacuum chamber (9) behind the base plate (13) and inside of the housing of the handpiece, which is in fluid communication with the at least one through hole (17) provided in the base plate (13) for exerting attraction onto a surface (33) of the skin tissue towards the at least one first electrode (11) and towards the at least one second electrode (15), when the first electrode (11) and the at least one second electrode (15) is placed in proximity of or is touching the surface (33) of the tissue.

    Medical handpiece having high frequency heating function
    9.
    发明授权
    Medical handpiece having high frequency heating function 有权

    公开(公告)号：US11759248B2

    公开(公告)日：2023-09-19

    申请号：US17169028

    申请日：2021-02-05

    申请人： AGNES MEDICAL CO., LTD

    发明人： Gunyoung Ahn

    IPC分类号： A61B18/14 ,  A61B18/00

    CPC分类号： A61B18/14 ,  A61B2018/0047 ,  A61B2018/00154 ,  A61B2018/00202 ,  A61B2018/143

    摘要： Disclosed is a medical handpiece having a high frequency heating function. The medical handpiece includes: a needle unit including a needle holder installed outside a distal portion of a handpiece body portion and needles configured to protrude forward from the needle holder; a high-frequency generator configured to apply a high-frequency current to the needle to generate heat when the distal end of the needle is inserted into the epidermal layer; a drug delivery unit installed to deliver a drug to the needle; and a skin expansion member including a guide main body installed to protrude outward of the handpiece body portion and a pair of rotational expansion plates configured to expand a skin in both directions while rotating about a hinge shaft on both sides of a distal portion of the guide main body.

    Methods of ablating tissue using a catheter injection system
    10.
    发明授权
    Methods of ablating tissue using a catheter injection system 有权

    公开(公告)号：US11717345B2

    公开(公告)日：2023-08-08

    申请号：US17232560

    申请日：2021-04-16

    申请人： Ablative Solutions, Inc.

    发明人： David R. Fischell ,  Tim A. Fischell

    IPC分类号： A61B18/00 ,  A61B18/14 ,  A61M5/00

    CPC分类号： A61B18/1492 ,  A61M5/00 ,  A61B2018/0022 ,  A61B2018/00214 ,  A61B2018/00375 ,  A61B2018/00404 ,  A61B2018/00434 ,  A61B2018/00511 ,  A61B2018/00577 ,  A61B2018/143

    摘要： At the present time, physicians often treat patients with atrial fibrillation (AF) using radiofrequency (RF) catheter systems to ablate conducting tissue in the wall of the Left Atrium of the heart around the ostium of the pulmonary veins. These systems are expensive and take time consuming to use. The present invention circular ablation system CAS includes a multiplicity of expandable needles that can be expanded around a central axis and positioned to inject a fluid like ethanol to ablate conductive tissue in a ring around the ostium of a pulmonary vein quickly and without the need for expensive capital equipment. The expansion of the needles is accomplished by self-expanding or balloon expandable structures. The invention includes centering means so that the needles will be situated in a pattern surrounding the outside of the ostium of a vein. Also included are members that limit the distance of penetration of the needles into the wall of the left atrium. The present invention also has application to ablating tissue around the ostium of a renal artery for the treatment of hypertension.