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    Malleable surgical ablation instruments
    3.
    发明申请
    Malleable surgical ablation instruments 审中-公开
    韧性手术切除器械

    公开(公告)号：US20040167503A1

    公开(公告)日：2004-08-26

    申请号：US10756014

    申请日：2004-01-13

    Applicant: CARDIOFOCUS, INC.

    Inventor： Edward L. Sinofsky

    IPC: A61B018/20 ,  A61B018/04

    CPC classification number: A61B18/22 ,  A61B18/1492 ,  A61B18/24 ,  A61B2017/00057 ,  A61B2017/00243 ,  A61B2017/22058 ,  A61B2017/22059 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00839 ,  A61B2018/2238 ,  A61B2018/2261 ,  A61B2018/2272 ,  A61B2018/2288 ,  A61M25/0105 ,  A61N7/02

    Abstract: Malleable surgical ablation instruments are disclosed for creating lesions in tissue, including cardiac tissue for treatment of arrhythmias and other diseases. The hand held instruments are especially useful in open chest or port access cardiac surgery for rapid and efficient creation of curvilinear lesions to serve as conduction blocks. The malleable instruments disclosed are well adapted for use in or around the intricate structures of the heart. In one example, the distal end of the instrument can have a malleable shape or be in the shape of an open loop so as to allow the loop to be placed around at least one a pulmonary vein or artery. Such instruments can incorporate various ablative elements such as ablative radiation, RF heating, cryogenic cooling, ultrasound, microwave, ablative fluid injection and the like.

    Abstract translation: 公开了可塑性手术消融器械用于在组织中产生损伤，包括用于治疗心律失常和其它疾病的心脏组织。 手持式仪器特别适用于胸腔或口腔通道心脏手术，用于快速有效地创建曲线性病变以用作传导阻滞。 所公开的可延展的仪器适用于心脏复杂结构中或其周围。 在一个示例中，仪器的远端可以具有可延展的形状或者是开环的形状，以便允许环绕至少一个肺静脉或动脉放置。 这样的仪器可以并入各种烧蚀元件，例如烧蚀辐射，RF加热，低温冷却，超声波，微波，烧蚀液注入等。

    Coaxial catheter instruments for ablation with radiant energy
    5.
    发明申请
    Coaxial catheter instruments for ablation with radiant energy 有权

    公开(公告)号：US20040006333A1

    公开(公告)日：2004-01-08

    申请号：US10357156

    申请日：2003-02-03

    Applicant: CARDIOFOCUS, INC.

    Inventor： Jeffrey M. Arnold ,  Edward L. Sinofsky ,  Lincoln S. Baxter ,  Norman E. Farr

    IPC: A61B018/18 ,  A61B018/04 ,  A61B018/20

    CPC classification number: A61B18/24 ,  A61B18/245 ,  A61B2017/00057 ,  A61B2017/00061 ,  A61B2018/0097 ,  A61B2018/2261 ,  A61B2018/2266 ,  A61B2018/2272 ,  A61B2090/065 ,  A61L2/10 ,  A61L29/085 ,  A61N7/02 ,  C08L27/12

    Abstract: Ablation methods and instruments are disclosed for creating lesions in tissue, especially cardiac tissue for treatment of arrhythmias and the like. Percutaneous ablation instruments in the form of coaxial catheter bodies are disclosed having at least one central lumen therein and having one or more balloon structures at the distal end region of the instrument. The instruments include an energy emitting element which is independently positionable within the lumen of the instrument and adapted to project radiant energy through a transmissive region of a projection balloon to a target tissue site. The instrument can optionally include at least one expandable anchor balloon disposed about, or incorporated into an inner catheter body designed to be slid over a guidewire. This anchor balloon can serve to position the device within a lumen, such as a pulmonary vein. A projection balloon structure is also disclosed that can be slid over the first (anchor balloon) catheter body and inflated within the heart, to define a staging from which to project radiant energy. An ablative fluid can also be employed outside of the instrument (e.g., between the balloon and the target region) to ensure efficient transmission of the radiant energy when the instrument is deployed. In another aspect of the invention, generally applicable to a wide range of cardiac ablation instruments, mechanisms are disclosed for determining whether the instrument has been properly seated within the heart, e.g., whether the device is in contact with a pulmonary vein and/or the atrial surface, in order to form a lesion by heating, cooling or projecting energy. This contact-sensing feature can be implemented by an illumination source situated within the instrument and an optical detector that monitors the level of reflected light. Measurements of the reflected light (or wavelengths of the reflected light) can thus be used to determine whether contact has been achieved and whether such contact is continuous over a desired ablation path.

    Safety shut-off device for laser surgical instruments employing blackbody emitters
    6.
    发明申请
    Safety shut-off device for laser surgical instruments employing blackbody emitters 有权
    使用黑体发射器的激光手术器械的安全切断装置

    公开(公告)号：US20030216720A1

    公开(公告)日：2003-11-20

    申请号：US10145866

    申请日：2002-05-14

    Applicant: CARDIOFOCUS, INC.

    Inventor： Edward L. Sinofsky

    IPC: A61B018/18 ,  A61N001/00 ,  G01K015/00 ,  G01K019/00 ,  G05B023/02 ,  A61N001/30 ,  G01J003/00 ,  A61F002/00 ,  G01J005/00 ,  G01J001/00 ,  G01T001/00 ,  G01N021/55

    CPC classification number: A61B18/20 ,  A61B18/22 ,  A61B2017/00057 ,  A61B2017/0007 ,  A61B2017/00084 ,  A61B2018/00636 ,  G01J1/18 ,  G01J1/42

    Abstract: Methods and systems are disclosed for detecting overheating in an optical device before harmful consequences, such as severe local heating, can result. In one embodiment of the invention, a blackbody emitter is disposed in close proximity to a therapeutic optical fiber to absorb therapeutic radiation at a fault and re-emit blackbody (infrared) radiation. The emitter can be coupled to the fiber but, during normal operation, lies outside the optical path between the output of the laser radiation and the site of treatment. Systems and catheters incorporating such emitters are also described for effective monitoring of the laser power transmitted along the optical fiber within the phototherapy device.

    Abstract translation: 公开了用于检测光学装置中的过热的方法和系统，其中可能导致诸如严重的局部加热等有害后果。 在本发明的一个实施例中，黑体发射器靠近治疗光纤设置，以吸收故障时的治疗辐射并重新发射黑体（红外）辐射。 发射器可以耦合到光纤，但是在正常操作期间，位于激光辐射的输出和处理部位之间的光路外。 还描述了结合这种发射器的系统和导管，用于有效监测沿光疗装置内的光纤传输的激光功率。

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