A61B2018/00357

SYSTEMS AND METHODS FOR A SINGLE SPIRAL ELECTRODE ASSEMBLY FORMING A SPHERICAL BASKET FOR IMPROVED TISSUE CONTACT AND CURRENT DELIVERY

The disclosed technology includes a medical probe including a tubular shaft having a proximal end and a distal end. The tubular shaft can extend along a longitudinal axis. The medical probe can include an expandable basket assembly proximate the distal end of the tubular shaft. The expandable basket assembly can include a single spine comprising a resilient material extending generally linearly along the longitudinal axis in a collapsed form and forming a spiral member defining a generally spherical outer periphery in an expanded form. One or more electrodes can be coupled to the single spine. Each electrode can include a lumen offset with respect to a centroid of the electrode so that the single spine extends through the lumen of each of the one or more electrodes.

SYSTEMS AND METHODS FOR LINEAR SPINES FORMING A SPHERICAL BASKET FOR IMPROVED TISSUE CONTACT AND CURRENT DELIVERY

The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis and including a proximal end and a distal end. The medical probe further comprises an expandable basket assembly proximate the distal end of the tubular shaft. The basket assembly comprises a single unitary structure that includes a plurality of linear spines formed from a planar sheet of material and one or more electrodes coupled to each of the spines, each electrode defining a lumen through the electrode so that a spine extends through the lumen of each of the one or more electrodes. The spines converge at a central spine intersection at a distal end of the basket assembly. The central spine intersection includes one or more cutouts that allows for bending of the spines. Each spine comprises a respective end connected to the distal end of the tubular shaft.

SYSTEMS AND METHODS FOR TRIPODIC SPINES FORMING A SPHERICAL BASKET FOR IMPROVED TISSUE CONTACT AND CURRENT DELIVERY

The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis and including a proximal end and a distal end. The medical probe further comprises an expandable basket assembly proximate the distal end of the tubular shaft. The basket assembly comprises a first unitary tripodic structure and a second unitary tripodic structure, each tripodic structure formed from a respective planar sheet of material that includes three linear spines converging at a respective central spine intersection and one or more electrodes coupled to each of the spines, each electrode defining a lumen through the electrode so that the spine extends through the lumen of each of the one or more electrodes. Each tripodic structure formed from a respective planar sheet of material that includes three linear spines converging at a respective central spine intersection.

SYSTEMS AND METHODS FOR LINEAR SPINES AND SPINE RETENTION HUB FOR IMPROVED TISSUE CONTACT AND CURRENT DELIVERY

The disclosed technology includes a medical probe comprising a tubular shaft extending along a longitudinal axis and including a proximal end and a distal end. The medical probe further comprises an expandable basket assembly proximate the distal end of the tubular shaft. The basket assembly comprises a single unitary structure that includes a plurality of linear spines formed from a planar sheet of material and one or more electrodes coupled to each of the spines, each electrode defining a lumen through the electrode so that a spine extends through the lumen of each of the one or more electrodes. The spines converge at a central spine intersection at a distal end of the basket assembly. The central spine intersection includes one or more cutouts that allows for bending of the spines. Each spine comprises a respective end connected to the distal end of the tubular shaft.

Methods and tools to merge mapping data acquired from multiple catheters

The present disclosure is directed to merging data acquired from differently configured catheters on a common map. In use, physical characteristics of catheters influence recorded electrical signals/responses such that differently configured catheters (e.g., different electrode sizes, shapes, materials, spacings, etc.) may record different responses to measurements taken at the same location in response to the same excitation signal. To allow merging of data from differently configured catheters in a common map, the present disclosure applies a corrective coefficient or transfer function to the recorded electrical signals of one or both catheters to counter-balance variable influences of catheter specific characteristics on recorded signals.

Methods of removing heat from an electrode using thermal shunting

According to some embodiments, a medical instrument (for example, an ablation device) comprises an elongate body having a proximal end and a distal end, an energy delivery member positioned at the distal end of the elongate body, a first plurality of temperature-measurement devices carried by or positioned within the energy delivery member, the first plurality of temperature-measurement devices being thermally insulated from the energy delivery member, and a second plurality of temperature-measurement devices positioned proximal to a proximal end of the energy delivery member, the second plurality of temperature-measurement devices being thermally insulated from the energy delivery member.

System Comprising an Elongated Catheter and an Implant Detachably Attached to a Distal End of the Elongated Catheter

A system includes an elongated catheter including a proximal end configured for operative coupling to an electrical power source, a distal end with a first electrical connector and a first conducting wire, an implant including a tissue energising module and a proximal connecting hub configured to detachably couple with the distal end of the elongated catheter. The proximal connecting hub includes a second electrical connector configured to mate with the first electrical connector and electrically couple the first electrical connector with the tissue energising module through a second conducting wire. A latch system to lock the distal end of the catheter to the proximal connecting hub arm includes an arm attached to the distal end of the catheter that is resiliently deformable such that the arm engages a sidewall of the proximal connecting hub and a locking element that is axially adjustable.

System Comprising an Elongated Catheter and an Implant Detachably Attached to a Distal End of the Elongated Catheter

A system including an elongated catheter and an implant. The elongated catheter includes a proximal end configured for operative coupling to an electrical supply module, a distal end with a first electrical connector and a first conducting wire to electrically couple the electrical supply module with the first electrical connector. The implant includes a proximal connecting hub configured to detachably mount to the distal end of the elongated catheter, a second electrical connector configured to mate with the first electrical connector, and an active module electrically coupled to the second electrical connector. The first electrical connector is rotatably mounted to the distal end of the elongated catheter and the second electrical connector is non-rotatably attached to the proximal connecting hub of the implant and the elongated catheter can detach from the implant without rotation of the first electrical connector relative to the second electrical connector.

EXPANDABLE CATHETER ASSEMBLY WITH FLEXIBLE PRINTED CIRCUIT BOARD (PCB) ELECTRICAL PATHWAYS

Provided is a flex-PCB catheter device that is configured to be inserted into a body lumen. The flex-PCB catheter comprises an elongate shaft, an expandable assembly, a flexible printed circuit board (flex-PCB) substrate, a plurality of electronic components and a plurality of communication paths. The elongate shaft comprises a proximal end and a distal end. The expandable assembly is configured to transition from a radially compact state to a radially expanded state. The plurality of electronic elements are coupled to the flex-PCB substrate and are configured to receive and/or transmit an electric signal. The plurality of communication paths are positioned on and/or within the flex-PCB substrate. The communication paths selectively couple the plurality of electronic elements to a plurality of electrical contacts configured to electrically connect to an electronic module configured to process the electrical signal. The flex-PCB substrate can have multiple layers, including one or more metallic layers. Acoustic matching elements and conductive traces can be includes in the flex-PCB substrate.

ABLATION EQUIPMENT TO TREAT TARGET REGIONS OF TISSUE IN ORGANS
20230218340 · 2023-07-13 ·

The present invention relates to an ablation equipment (100) to treat target regions of tissue (41) in organs (44), comprising an ablation catheter (1) and a single power source (4); said ablation catheter (1) comprising: a catheter elongated shaft (13) comprising at least an elongated shaft distal portion (17); said catheter elongated shaft (13) comprising a flexible body (207) to navigate through body vessels (208); said ablation catheter (1) further comprising a shaft ablation assembly (20) disposed at said elongated shaft distal portion (17); said shaft ablation assembly (2) comprising at least a plurality of electrodes (127, 113 or 114) fixedly disposed at said elongated shaft distal portion (17); all electrodes of said at least a plurality (127, 113 or 114) being electrically powered by said single power source (4) through an electric signal (S) to deliver both non-thermal energy for treating the tissue (41) and thermal energy for ablating the tissue (41); wherein said electric signal (S) comprises a sinusoidal wave, and said single power source (4), when requested, changes continuously said electric signal (S) in order to power the said least a plurality of electrodes (127, 113 or 114) to deliver from a non-thermal energy to a thermal energy, and vice versa, or to deliver at the same time a combination of thermal energy and non-thermal energy.