42 results about "Basket catheter" patented technology

Embodiments of the present invention provide a catheter that comprises an elongated catheter body (16) and an electrode assembly (10) at the distal end of the catheter body. The electrode assembly comprises a plurality of spines (11), each of the spines having a proximal end connected to the distal end of the catheter and a distal end, the distal ends of the spines being connected at a spine tip junction (13). Each spine includes an elbow (20) having at least one discontinuity in stiffness at an intermediate position between the distal end and the proximal end thereof. The spines include a plurality of electrodes (12). The electrode assembly is collapsible to a collapsed arrangement to fit within a lumen of the elongated catheter body and expandable to an expanded arrangement with the elbows of the spines bending outwardly relative to the proximal and distal ends of the spines.

A catheter with basket-shaped electrode assembly with spines configured for hyper-flexing in a predetermined, predictable manner when a compressive force acts on the assembly from either its distal end or its proximal end. At least one spine has at least one region of greater (or hyper) flexibility that allows the electrode assembly to deform, for example, compress, for absorbing and dampening excessive force that may otherwise cause damage or injury to tissue wall in contact with the assembly, without compromising the structure and stiffness of the remaining regions of the spine, including its distal and proximal regions. The one or more regions of greater flexibility in the spine allow the spine to flex into a generally V-shape configuration or a generally U-shape configuration.

A catheter adapted for mapping and / or ablation in the atria has a basket-shaped electrode array with two or more location sensors with a deflectable expander. The catheter has comprises a catheter body, a basket electrode assembly at a distal end of the catheter body, and a control handle at a proximal end of the catheter body. The basket electrode assembly has a plurality of electrode-carrying spines and an expander that is adapted for longitudinal movement relative to the catheter body for expanding and collapsing the assembly via a proximal end portion extending past the control handle that can be pushed or pulled by a user. The expander is also adapted for deflection in responsive to an actuator on the control handle that allows a user to control at least one puller wire extending through the catheter body and the expander.

Catheter systems and methods are disclosed. An exemplary catheter includes an outer tubing housing and an inner fluid delivery tubing, the inner fluid delivery tubing having at least one fluid delivery port. The catheter also includes a deployment member movable axially within the inner fluid delivery tubing. A plurality of splines are each connected at a proximal end to the outer tubing and at a distal end to deployment member. A seal is provided between the outer tubing and the inner fluid delivery tubing. A gasket is provided between the deployment member and the inner fluid delivery tubing. Both the seal and the gasket are configured to prevent blood or other fluid from ingressing into the outer tubing.

A catheter sheath for a basket catheter which includes a plurality of electrical leads each having a proximal end and a distal end and a lumen extending from the proximal end to the distal end. Each electrical lead includes a tubular member of non-conductive material, a plurality of electrical conductors extending from the proximal end to the distal end laid on the non-conductive tubular member, and an outer layer of non-conductive material applied over the electrical conductors to cover the conductors. The catheter sheath further includes one or more electrodes on a distal portion of each electrical lead in electrical communication with at least one of the plurality of electrical conductors through the outer layer. An elongate shape forming member is received in the lumen of each of the plurality of electrical leads. The shape forming member imparts an arched shape to the distal portion of each of the electrical leads so as to form a basket shape to a distal portion of the catheter sheath. The plurality of electrical leads are bundled together at their distal ends and proximal the distal arched portion of each electrical lead.

The present disclosure relates to catheter systems including balloons and infusion baskets designed to be deployable in complex tubing systems for optimal treatment of blood and arterial diseases, such as blood clots, thrombus and deep vein thrombosis. The basket may include a rod having a plurality of cutouts along a portion of its length to form a plurality of bifurcations that provide support to a plurality of perforated tubes, thereby forming branches of the basket. When the longitudinal length of the basket decreases, the branches of the basket expand radially away from the longitudinal axis of the basket. The branches may also be connected to a drug delivery system such that the basket of the present disclosure allows for both mechanical and drug thrombolysis.

The invention is entitled "Basket Catheter with Prestrained Frame". The present invention discloses a catheter having a basket-shaped electrode assembly at the distal end of the catheter body, the basket-shaped electrode assembly being formed from a plurality of spines with electrodes. The plurality of ridges may be formed by a frame that is pre-strained to have a diameter greater than a diameter of the basket electrode assembly in an expanded arrangement and a length less than a length of the basket electrode assembly in an expanded arrangement.

The invention discloses a multi-electrode basket catheter and a manufacture method of the multi-electrode basket catheter to solve the technical problem of accurately and rapidly conducting mapping or radio frequency ablation treatment in the operation process. The multi-electrode basket catheter comprises a basket device. A basket of the basket device is composed of strip-shaped arms. The near end of each strip-shaped arm and the far end of the strip-shaped arm are connected to a near end connecting structure and a far end connecting structure. The strip-shaped arms are bent under the action of external force to form an arc shape or form a spatial curve so that the basket of an ellipsoid shape can be defined. The strip-shaped arms are stretched out or drawn back in the length direction of the strip-shaped arms under the action of external force to form a stranded wire. Annular electrodes are distributed on the outer surfaces of the strip-shaped electrodes. The manufacture method of the multi-electrode basket catheter includes the steps of manufacturing all parts and assembling the parts. Compared with the prior art, the multi-electrode basket catheter has the advantages that the size of the basket formed by the strip-shaped arms can be adjusted under the control of one handle, and therefore the electrodes distributed in the space on the strip-shaped arms make full and close contact with the tissue of the endocardium, mapping or radio frequency ablation treatment is accurately and rapidly conducted, and the basket is conveniently recycled.