Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system may include a structure including a first elongate member, a line including a plurality of flexible members, and an actuator coupled to the line to selectively transmit force to at least the first elongate member. The structure may include a delivery configuration in which at least a portion of the structure is arranged to be percutaneously delivered to a bodily cavity. Respective portions of the flexible members may be intertwined together to form a braided portion of the line, and the line may include an unbraided portion secured at least to the first elongate member. The braided portion of the line may be located between the actuator and the first elongate member.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system may include a catheter sheath and a catheter shaft sized for delivery through a lumen of the catheter sheath. The catheter shaft may be coupled to an end effector at or adjacent a distal end of the catheter shaft. The catheter shaft may include a lumen and a control element. The control element may be coupled to the end effector and may reside within the lumen of the catheter shaft. Physical access may be provided to the control element, to allow the control element to be severed to facilitate removal of the end effector from a bodily cavity. The control element may include a lumen and a control cable therein. A liquid entry port may be provided in the lumen of the control element toward a distal end of the control element to allow expedited provision of fluid to a distal portion of the control element.

Abstract: A medical device system may include a catheter sheath and a catheter shaft sized for delivery through a lumen of the catheter sheath. The catheter shaft may be coupled to an end effector at or adjacent a distal end of the catheter shaft. The catheter shaft may include a lumen and a control element. The control element may be coupled to the end effector and may reside within the lumen of the catheter shaft. Physical access may be provided to the control element, to allow the control element to be severed to facilitate removal of the end effector from a bodily cavity. The control element may include a lumen and a control cable therein. A liquid entry port may be provided in the lumen of the control element toward a distal end of the control element to allow expedited provision of fluid to a distal portion of the control element.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system may include transducers and a structure on which the transducers are located. The structure may include at least a first portion of each elongate member of a plurality of elongate members. Each respective set of a plurality of sets of one or more of the transducers may be located on a respective one of the plurality of elongate members. The structure may be selectively moveable between a delivery configuration in which the structure is sized to be percutaneously deliverable to a bodily cavity and a deployed configuration in which the structure is sized too large to be percutaneously deliverable to the bodily cavity. The second portion of each elongate member of the plurality of elongate members may be arranged in a helical configuration or a twisted, non-helical configuration including at least 360 degrees of rotation when the structure is in the delivery configuration.

Abstract: A medical device system may include a structure including a first elongate member, a line including a plurality of flexible members, and an actuator coupled to the line to selectively transmit force to at least the first elongate member. The structure may include a delivery configuration in which at least a portion of the structure is arranged to be percutaneously delivered to a bodily cavity. Respective portions of the flexible members may be intertwined together to form a braided portion of the line, and the line may include an unbraided portion secured at least to the first elongate member. The braided portion of the line may be located between the actuator and the first elongate member.

Abstract: Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation.

Abstract: A medical device system may include a catheter sheath and a catheter shaft sized for delivery through a lumen of the catheter sheath. The catheter shaft may be coupled to an end effector at or adjacent a distal end of the catheter shaft. The catheter shaft may include a lumen and a control element. The control element may be coupled to the end effector and may reside within the lumen of the catheter shaft. Physical access may be provided to the control element, to allow the control element to be severed to facilitate removal of the end effector from a bodily cavity. The control element may include a lumen and a control cable therein. A liquid entry port may be provided in the lumen of the control element toward a distal end of the control element to allow expedited provision of fluid to a distal portion of the control element.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: A medical device system is disclosed including a high-density arrangement of transducers, which may be configured to ablate, stimulate, or sense characteristics of tissue inside a bodily cavity, such as an intra-cardiac cavity. High-density arrangements of transducers may be achieved, at least in part, by overlapping elongate members on which the transducers are located, and varying sizes, shapes, or both of the transducers, especially in view of the overlapping of the elongate members. Also, the high-density arrangements of transducers may be achieved, at least in part, by including one or more recessed portions in an elongate member in order to expose one or more transducers on an underlying elongate member in a region adjacent an elongate-member-overlap region.

Abstract: Systems, methods, and devices allow intravascular or percutaneous mapping, orientation or ablation, or combinations thereof in bodily cavities or lumens. A device includes a plurality of elongate members which are moveable between an unexpanded configuration, a bent or coiled stack configuration and an expanded or fanned configuration. The elongate members form a stack arrangement in the unexpanded configuration to fit through a catheter sheath. The elongate members follow respective arcuate or curvilinear paths as advanced from the sheath into the bent or coiled stack configuration, adopting volute, scroll or rho shapes, and may be nested. The elongated members are fanned or radially spaced circumferentially with respect to one another into the expanded or fanned configuration. Transducers carried by elongate members may sense various physiological characteristics of or proximate tissue, for instance temperature, and/or may apply energy to or proximate tissue, for example to perform ablation.