Boston Scientific Scimed

The present invention discloses a method for aligning a light source within a catheter system for treating a vascular lesion within or adjacent to a vessel wall within a body of a patient, the catheter system including the single light source that generates light energy, the method comprising the steps of: initiating control of a plurality of hardware of the catheter system, the plurality of hardware including at least one of (i) a light guide that is configured to selectively receive light energy from the light source, (ii) a camera that captures an alignment of the light source within the light guide, (iii) a mover that is configured to selectively adjust a positioning of the light source within the light guide; performing a coarse alignment of the positioning of the light source within the light guide; checking at least one of (i) the alignment of the light source within the light guide, and (ii) a light energy level of the light source; and performing a fine alignment of the positioning of the light source within the light guide.

A method and system for determining changes between a planning image and a treatment image of a subject is described. The method comprising the steps of: defining one of more clinical volumes on the planning image of a subject and defining a planning envelope volume around the clinical volume for the planning image; acquiring a treatment image from the subject for a location corresponding to the location of the planning image; wherein the treatment image will have the same planning envelope volume as the planning image; determining the location of the one or more clinical volumes on the treatment image relative to the planning envelope volume; determining an encapsulation metric for one or more of the clinical volumes defining the extent of encapsulation of the clinical volume on the treatment image within the planning envelope volume on the treatment image.

A medical device for occluding the left atrial appendage is disclosed. The medical device for occluding the left atrial appendage includes an expandable member having a first end region, a second end region and an inner cavity. The medical device also includes a plurality of spine members coupled to the expandable member, the plurality of spine members spaced circumferentially around an outer surface of the expandable member. Additionally, the medical device includes a valve member extending at least partially into the inner cavity, wherein the plurality of spine members are configured to position the medical device within an opening of the left atrial appendage and wherein the expandable member is configured to expand and seal the opening of the left atrial appendage.

According to an aspect, an implant includes an inflatable member and a pump assembly configured to facilitate a transfer of a fluid from the reservoir to the inflatable member. The inflatable member has a sidewall that defines a lumen. The sidewall has an outer surface and an inner surface disposed opposite the outer surface. The inner surface has a series of undulations.

An implantable fluid operated device may include a fluid reservoir configured to hold fluid, an inflatable member, and a pump assembly configured to transfer fluid between the fluid reservoir and the inflatable member. The pump assembly may include one or more fluid pumps and one or more valves. The one or more valves may be normally open valves, normally closed valves, or a combination thereof. One or more sensing devices may be positioned within fluid passageways of the fluid operated device. The electronic control system may control operation of the pump assembly based on fluid pressure measurements and/or fluid flow measurements received from the one or more sensing devices. Variable voltage can be applied to the control of the pump and/or the valves based on varying atmospheric conditions and the fluid pressure and/or flow measurements processed by the electronic control system.

The present invention discloses a method of optical alignment in a catheter system, the catheter system including a light source, a first light guide, a second light guide and an optical alignment system, the method comprising the steps of: generating light energy using the light source; directing the light energy toward at least one of a guide proximal end of the first light guide and a guide proximal end of the second light guide; determining an alignment of the light energy relative to at least one of the guide proximal ends of the light guides with the optical alignment system; and adjusting a positioning of the light energy relative to the at least one of the guide proximal ends of the light guides with the optical alignment system based on the alignment of the light energy.

Systems, devices, and methods for electroporation ablation therapy are disclosed, with the system including a pulse waveform signal generator for medical ablation therapy, and an endocardial ablation device includes an inflatable member and at least one electrode for focal ablation pulse delivery to tissue. The signal generator may deliver voltage pulses to the ablation device in the form of a pulse waveform. The system may include a cardiac stimulator for generation of pacing signals and for sequenced delivery of pulse waveforms in synchrony with the pacing signal.

Provided is an agent delivery device for delivering an agent to a target tissue via a pressurized fluid, the agent delivery device comprising: an enclosure configured to store the agent, receive the pressurized fluid, and release a combination of the pressurized fluid and the agent; and a valve configured to be coupled to a lumen of a catheter, wherein the valve has a first configuration preventing flow of the combination of the pressurized fluid and the agent through the lumen and a second configuration permitting flow of the combination of the pressurized fluid and the agent through the lumen.

The present invention refers to an intravascular imaging catheter, comprising: an elongate sheath having a distal tip region and a body region; wherein the distal tip region includes a first port, a second port, and a guidewire lumen extending between the first port and the second port; a support member extending from a distal end of the distal tip region, along the distal tip region, and along at least a portion of the body region; wherein the support member is radially and/or circumferentially aligned with the guidewire lumen; and an imaging core slidably disposed within the elongate sheath.

A catheter system (100) for treating a treatment site (106) within or adjacent to a vessel wall of a blood vessel (108) includes a catheter shaft (110) that extends into the blood vessel (108), the catheter shaft (110) including a shaft recess (1470, 1570, 1670, 1770); an energy guide (1422A, 1522A, 1622A, 1722A) that is configured to receive energy from an energy source (124) and guide the energy into the blood vessel (108); and a plasma generator (1433, 1533, 1633, 1733) that is positioned at a guide distal end (1422D, 1522D, 1622D, 1722D) of the energy guide (1422A, 1522A, 1622A, 1722A), the plasma generator being configured to generate the plasma in a fluid (1432, 1532, 1632, 1732) within the blood vessel (108); and wherein the energy guide is positioned such that the plasma generator is positioned substantially within the shaft recess (1470, 1570, 1670, 1770).