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公开(公告)号：US20070293904A1
公开(公告)日：2007-12-20
申请号：US11455827
申请日：2006-06-20
IPC分类号： A61N1/00
CPC分类号： A61N1/3785 , A61N1/3756
摘要： A self-powered medical device, for example a pacemaker uses the variations of blood pressure inside the heart or a major artery to create a mechanical resonance in an electromagnetic or piezoelectric generator. The resonance extends the time power is generated during the cardiac cycle. The pressure variations compress a bellows carrying the resonant generator. The inside of the bellows may be evacuated to a partial or full vacuum, and a spring restores the bellows to the desired equilibrium point, acting against the blood pressure. The current pulses are stored in a capacitor. Eliminating the battery allows dramatic miniaturization of the medical device to the point it can be implanted at the point of desired stimulation via a catheter.
摘要翻译： 自动供电的医疗装置，例如起搏器使用心脏或大动脉内的血压变化在电磁或压电发生器中产生机械共振。 共振延长了在心脏周期中产生功率的时间。 压力变化压缩携带谐振发生器的波纹管。 波纹管的内部可以被抽空到部分或全部真空，并且弹簧将波纹管恢复到期望的平衡点，以抵抗血压。 电流脉冲存储在电容器中。 消除电池允许医疗装置的显着的小型化到通过导管在所需刺激点可植入的程度。
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公开(公告)号：US08449605B2
公开(公告)日：2013-05-28
申请号：US11475978
申请日：2006-06-28
IPC分类号： A61F2/24
CPC分类号： A61F2/2418 , A61F2/2412 , A61F2/2433 , A61F2/2442 , A61F2/2451 , A61F2/2466 , A61F2210/009 , A61F2250/006
摘要： An artificial mitral valve is anchored in the left atrium by placing the valve between the annulus of the natural mitral valve and an artificial annulus. The artificial annulus is formed by inserting a tool into the coronary sinus, and adjusting the tool to force the wall of the left atrium to form an annulus above the artificial valve, this locking it in place and forming a hemostatic seal.
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公开(公告)号：US20130023751A1
公开(公告)日：2013-01-24
申请号：US13135867
申请日：2011-07-18
IPC分类号： A61B5/053
CPC分类号： A61B5/0537 , A61B5/4875 , A61B5/6824 , A61B5/6829 , A61B5/6838
摘要： The water contents of the tissue is measured by placing part of the body, such as the arm or ankle, between two capacitive electrodes and calculating the water contents based on the dielectric properties of the tissue. The device is shaped like a bracelet or hinged clip. When placed over part of the body the hinge position is measured to normalize the reading for the tissue thickness. The device can alert the user of water retention, and can also contact the physician directly via a wireless link.
摘要翻译： 通过将身体的一部分（例如臂或脚踝）放置在两个电容电极之间并基于组织的介电性质计算含水量来测量组织的含水量。 该装置的形状如手镯或铰链夹。 当放置在身体的一部分上时，测量铰链位置以标准化组织厚度的读数。 该设备可以提醒用户保水，并且还可以通过无线链接直接与医生联系。
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公开(公告)号：US20120271096A1
公开(公告)日：2012-10-25
申请号：US13136030
申请日：2011-07-22
IPC分类号： A61M1/10
CPC分类号： A61M1/1037 , A61M1/10 , A61M1/1006 , A61M1/1012 , A61M1/1039
摘要： A blood pump for cardiac assist is made up from a catheter having a collapsible outer delivery tube and an inner suction tube that can be collapsible as well. The diameter of the tubing is reduced at the entry point to the body an a hole in the side of the delivery tube provides blood flow to the organs downstream from the catheter insertion point. The catheter is connected to an elastic tubing loop which forms a peristaltic pump when stretched over rotating arms equipped with rollers.
摘要翻译： 用于心脏辅助的血泵由具有可折叠外部输送管和可以折叠的内部吸入管的导管构成。 管道的直径在入口处减小到身体，输送管侧面的孔提供血液流向导管插入点下游的器官。 导管连接到弹性管环，当在配备有辊的旋转臂上拉伸时，形成蠕动泵。
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公开(公告)号：US20120158016A1
公开(公告)日：2012-06-21
申请号：US13404834
申请日：2012-02-24
IPC分类号： A61B19/00
CPC分类号： A61B5/053 , A61B5/0538 , A61B17/320758 , A61B2017/00022 , A61B2017/00026 , A61B2017/00084 , A61B2017/003 , A61B2017/00539 , A61B2017/320004
摘要： An automatic atherectomy system uses a rotary burr at the tip of a catheter as a sensing device, in order to measure both electrical conductivity and permittivity of surrounding tissue at multiple frequencies. From these parameters it is determined which tissue lies in different directions around the tip. A servo system steers the catheter tip in the direction of the tissue to be removed. In non-atherectomy applications the rotary burr can be replaced with any desired tool and the system can be used to automatically steer the catheter to the desired position. The steering may be done hydraulically, by pressurizing miniature bellows located near the catheter tip.
摘要翻译： 自动斑块切除术系统使用导管末端的旋转毛刺作为感测装置，以便测量多个频率的周围组织的电导率和介电常数。 根据这些参数，确定哪个组织位于尖端周围的不同方向。 伺服系统沿着要移除的组织的方向引导导管尖端。 在非粥样斑块切除术应用中，旋转毛刺可以用任何所需的工具代替，并且该系统可用于将导管自动转向所需位置。 通过对位于导管末端附近的微型波纹管进行加压，可以液压地进行转向。
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公开(公告)号：US20110087203A1
公开(公告)日：2011-04-14
申请号：US12904885
申请日：2010-10-14
IPC分类号： A61N1/362
CPC分类号： A61F2/2487
摘要： An elastic structure is introduced percutaneously into the left ventricle and attached to the walls of the ventricle. Over time the structure bonds firmly to the walls via scar tissue formation. The structure helps the ventricle expand and fill with blood during the diastolic period while having little affect on systolic performance. The structure also strengthens the ventricular walls and limits the effects of congestive heart failure, as the maximum expansion of the support structure is limited by flexible or elastic members.
摘要翻译： 将弹性结构经皮引入左心室并附着于心室壁。 随着时间的推移，结构通过瘢痕组织形成牢固地粘合到壁上。 该结构有助于心室在舒张期内扩张和充满血液，同时对收缩性能影响不大。 该结构还加强了心室壁并限制了充血性心力衰竭的影响，因为支撑结构的最大膨胀受到柔性或弹性构件的限制。
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公开(公告)号：US20100222789A1
公开(公告)日：2010-09-02
申请号：US12777883
申请日：2010-05-11
IPC分类号： A61B17/10
CPC分类号： A61B17/0057 , A61B2017/00243 , A61B2017/00292 , A61B2017/00575 , A61B2017/00579 , A61B2017/00584 , A61B2017/00592 , A61B2017/00615 , A61B2017/00623 , A61B2017/00637 , A61B2017/00862 , A61B2017/22061
摘要： A device for closing holes in tissue is delivered via a catheter to the inside of a body lumen such as a heart. An elastic barbed clip is expanded, pulled into the tissue and released, pulling the tissue with it. The operation is fully reversible.
摘要翻译： 用于封闭组织中的孔的装置通过导管输送到诸如心脏的体腔内部。 弹性带刺的夹子被膨胀，拉入组织并释放，用它拉动组织。 操作完全可逆。
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公开(公告)号：US20100125271A1
公开(公告)日：2010-05-20
申请号：US12590807
申请日：2009-11-16
IPC分类号： A61B18/18
CPC分类号： A61B18/18 , A61B18/1815 , A61B34/30
摘要： The invention can selectively heat a diseased area or undesired tissue in the body while minimizing heating to the healthy area and surrounding tissue. This is done by exposing the undesired tissue to a scanning focused microwave beam arriving from different directions, all directions passing through the undesired tissue. The invention is particularly useful for heating tissues in which the undesired tissue has reduced blood flow. The undesired area will heat up rapidly while the healthy tissue will be cooled by the blood flow. This is particularly effective for treating emphysema because of the low mass of the lungs and the high blood flow.
摘要翻译： 本发明可以选择性地加热身体中的患病区域或不需要的组织，同时最小化对健康区域和周围组织的加热。 这是通过将不期望的组织暴露于从不同方向到达的扫描聚焦微波束，所有方向通过不想要的组织。 本发明特别适用于加热组织，其中不想要的组织具有减少的血液流动。 不需要的区域将迅速加热，而健康组织将被血流冷却。 由于肺的质量低，血流量高，对肺气肿的治疗特别有效。
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公开(公告)号：US20090259089A1
公开(公告)日：2009-10-15
申请号：US12222134
申请日：2008-08-04
CPC分类号： A61M25/0021 , A61M1/1008 , A61M1/101 , A61M1/1034 , A61M1/1037 , A61M1/1062 , A61M1/122 , A61M1/125 , A61M25/007 , A61M2025/0024 , A61M2025/0034 , A61M2025/0036 , A61M2025/0039 , A61M2025/004 , A61M2025/0681
摘要： A multi lumen catheter is made from a number of thin walled flexible tubes bonded together to form an inner lumen. The inner lumen can withstand vacuum when the outside tubes are pressurized. During insertion the tubes are compressed and collapsed. The tubes expand by the pressure of the pumped fluid. At the point the catheter enters the body the expansion is restricted to a smaller diameter than the rest of the catheter.
摘要翻译： 多腔导管由多个薄壁柔性管制成，这些薄壁柔性管结合在一起以形成内腔。 当外管被加压时，内腔可以承受真空。 在插入期间，管被压缩并折叠。 管通过泵送的流体的压力膨胀。 在导管进入体内，扩张被限制在比导管的其余部分更小的直径。
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公开(公告)号：US20090207494A1
公开(公告)日：2009-08-20
申请号：US12071315
申请日：2008-02-20
IPC分类号： B08B5/00
CPC分类号： B08B17/02 , A61B1/126 , A61B1/3132 , A61B90/36 , A61B90/361 , B08B3/02 , B08B5/02 , H04N5/2254
摘要： The lens at the tip of a laparoscopic camera is kept clean by creating a compartment in front of it pressurized by CO2 gas. The gas exits the compartment via a small aperture that also serves as an aperture for the optical system. The escaping gas is vented to the body cavity. Because of the small size of the aperture, even a small gas flow prevents fluids from entering the cavity and soiling the lens.
摘要翻译： 腹腔镜相机前端的镜头通过在CO 2气体加压的前面创建一个隔间来保持清洁。 气体通过也用作光学系统的孔的小孔口离开隔间。 逸出的气体被排放到体腔。 由于孔径小，所以即使是小的气流阻止流体进入腔体并弄脏透镜。
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