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公开(公告)号：US10980737B1
公开(公告)日：2021-04-20
申请号：US15452712
申请日：2017-03-07
摘要： The invention can selectively heat a diseased area in the lung while minimizing heating to the healthy area and surrounding tissue. This is done by exposing the lung to an electromagnetic field causing dielectric or eddy current heating. The invention is particularly useful for treating emphysema as the diseased areas have reduced blood flow. The diseased 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. To avoid heating of surrounding organs the direction of the electromagnetic energy is switched in a way it always passes through lungs but only intermittently passes through adjacent organs. If heat activated drugs are present in the lungs, they are selectively released in the heated tissue.
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公开(公告)号：US08337524B2
公开(公告)日：2012-12-25
申请号：US12777883
申请日：2010-05-11
IPC分类号： A61B17/08
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：US20110125172A1
公开(公告)日：2011-05-26
申请号：US12950871
申请日：2010-11-19
IPC分类号： A61B17/22
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：US20080045778A1
公开(公告)日：2008-02-21
申请号：US11497309
申请日：2006-08-02
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：US20070287879A1
公开(公告)日：2007-12-13
申请号：US11451437
申请日：2006-06-13
IPC分类号： A61N1/362
CPC分类号： A61B17/12022 , A61B17/12118 , A61B17/12172 , A61F2/07 , A61F2/90 , A61F2/94 , A61F2002/068 , A61F2002/30537 , A61F2230/0008 , A61F2250/0004 , A61F2250/0013
摘要： Making the volume of the arterial system increase elastically with blood pressure reduces high systolic blood pressure peaks. This volumetric elasticity is achieved by the action of a spring controlling the aortic cross-section thus controlling the aortic volume. The spring can be implanted percutaneously. The device is powered by the blood pressure itself and requires no other energy source or control circuits. The device can have an open structure or a sealed-wall structure, the latter also serve to protect against aortic aneurism. Non-linear volumetric elasticity can be used to assist the heart.
摘要翻译： 使动脉系统的体积随着血压弹性增加，降低高收缩压峰值。 该体积弹性通过控制主动脉横截面的弹簧的作用来实现，从而控制主动脉体积。 经皮植入弹簧。 该装置由血压本身供电，不需要其他能量源或控制电路。 该装置可以具有开放结构或密封壁结构，后者还用于防止主动脉瘤。 可以使用非线性体积弹性来协助心脏。
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公开(公告)号：US07837610B2
公开(公告)日：2010-11-23
申请号：US11497309
申请日：2006-08-02
IPC分类号： A61N1/00
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：US20100125225A1
公开(公告)日：2010-05-20
申请号：US12292424
申请日：2008-11-19
IPC分类号： A61N7/02
CPC分类号： A61N7/02 , A61B8/13 , A61B2090/378 , A61N2007/0008 , A61N2007/0082 , A61N2007/0091
摘要： The invention can selectively heat a diseased area, such as a tumor, in the body while minimizing heating of healthy surrounding tissue. This is done by exposing the undesired tissue to a scanning focused ultrasound beam arriving from different angular directions at different times, all directions passing through the undesired tissue. The system can scan the target area with low power ultrasound, and then activate the higher power over the selected target areas.
摘要翻译： 本发明可以选择性地加热身体中的疾病区域，例如肿瘤，同时使健康的周围组织的加热最小化。 这是通过将不想要的组织暴露于不同时间，从穿过不想要的组织的所有方向到不同角度方向的扫描聚焦超声波束来实现的。 该系统可以用低功率超声波扫描目标区域，然后激活所选目标区域的较高功率。
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公开(公告)号：US20070276444A1
公开(公告)日：2007-11-29
申请号：US11439283
申请日：2006-05-24
IPC分类号： A61N1/00
CPC分类号： A61N1/3785 , A61N1/37205 , A61N1/3756
摘要： A self-powered pacemaker uses the variations of blood pressure inside the heart or a major artery to create a periodic change in the magnetic flux inside a coil. The pressure variations compress a bellows carrying a magnet moving inside a coil. The inside of the bellows is 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 pacemaker to the point it can be implanted at the point of desired stimulation via a catheter. The invention includes means of compensating for atmospheric pressure changes.
摘要翻译： 自动起搏器使用心脏或大动脉内的血压变化来产生线圈内的磁通量的周期性变化。 压力变化压缩一个带有磁体的波纹管，该磁体在一个线圈内移动。 波纹管的内部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。 消除电池允许起搏器显着地小型化，直到通过导管在所需刺激点植入它。 本发明包括补偿大气压力变化的装置。
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公开(公告)号：US11033392B2
公开(公告)日：2021-06-15
申请号：US12904885
申请日：2010-10-14
IPC分类号： A61F2/24
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.
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公开(公告)号：US08920411B2
公开(公告)日：2014-12-30
申请号：US11475950
申请日：2006-06-28
IPC分类号： A61B18/08 , A61B18/12 , A61B5/028 , A61B5/00 , A61B5/029 , A61B18/10 , A61B18/18 , A61B18/00 , A61B18/02 , A61B18/14 , A61B18/20
CPC分类号： A61B18/1492 , A61B5/028 , A61B5/029 , A61B5/6853 , A61B18/10 , A61B18/18 , A61B18/20 , A61B34/10 , A61B34/25 , A61B2018/0022 , A61B2018/00351 , A61B2018/00577 , A61B2018/00642 , A61B2018/00714 , A61B2018/00791 , A61B2018/0212 , A61B2018/0237 , A61B2018/1407 , A61B2034/254 , A61B2562/046
摘要： An intra-cardiac mapping system is based on locating the ports through which blood flows in or out the heart chambers. For many procedures, such as ablation to cure atrial fibrillation, locating the pulmonary veins and the mitral valve accurately allows to perform a Maze procedure. The location of the ports and valves is based on using the convective cooling effect of the blood flow. The mapping can be performed by a catheter-deployed expandable net or a scanning catheter. The same net or catheter can also perform the ablation procedure.
摘要翻译： 心脏内测绘系统基于定位血液流入或流出心室的端口。 对于诸如消融治疗心房颤动的许多程序，准确地定位肺静脉和二尖瓣允许执行迷宫程序。 端口和阀门的位置基于使用血流的对流冷却效果。 可以通过导管部署的可扩展网或扫描导管执行映射。 相同的网或导管也可以执行消融程序。
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