Medtronic, Inc.

Scott William Hayden

Ronald A Drake

Stanten C Spear

Kendra Yasger

Gary R Fiedler

Lester O Stener

Steven Lawrence Waldhauser

Andrea Jean Asleson

Lindsey Marie Tobin

Kendra Lange

A medical apparatus includes an electrically conductive lead for a medical device, the lead having an internal bore terminating at a distal lead opening, and a lead delivery device for delivering the distal end of the lead to a blood vessel during implantation of the lead. The lead delivery device includes a removably anchorable guidewire, and a fixator attached to a distal portion of the guidewire for anchoring the guidewire. The fixator is movable between a compact configuration and an expanded configuration. The fixator is capable of passing through the distal lead opening of the lead in the compact configuration. The fixator is capable of exerting a holding force in the range of about 0.89 to 4.45 N in the lumen of the blood vessel in the expanded configuration.

Lead delivery device and method

A medical apparatus includes a guidewire and a fixator catheter. The fixator catheter comprises a tubular body with a distal portion and a proximal portion, and further includes a distal opening, a fixator secured to the distal portion, and a body opening arranged between the fixator and the proximal portion. The guidewire passes through the body opening and the distal opening of the fixator catheter. The fixator is movable between a compact configuration and an expanded configuration and, in the expanded condition, is capable of anchoring the guidewire and fixator catheter in a lumen of a blood vessel.

A catheter proximal section is preferably formed from a relatively soft part and a relatively rigid part, and includes a proximal terminal end that defines a perimeter of an opening into a lumen of the catheter. The proximal section may further include a feature for interlocking engagement with an accessory tool. An inner surface of each of the relatively soft and rigid parts may be located opposite one another, on either side of the catheter lumen. The relatively soft and rigid parts may be included in a sealing assembly that further includes an attachment feature for removable connection of the assembly to the proximal section catheter.

Medical delivery systems and apparatus

A syringe adapter tool facilitates inline connection of a syringe with a catheter lumen, as well as torque transfer between the syringe and catheter. The adapter tool may further facilitate passage of an instrument through a seal zone portion of the catheter lumen, which seal zone portion is located in a proximal section of the catheter.

Tools and methods related to catheter delivery

A seal member for assembly within, or a seal zone portion of, a lumen of a medical instrument/device includes a slit segment and a bore, wherein the slit segment intersects with a funnel-like segment of the bore.

Sealing for medical devices/instruments

A proximal terminal end of a proximal section of a catheter, preferably tapered, defines a perimeter of an opening into a lumen of the catheter and includes an exposed sealing area. A sealing assembly, that may be removed from the catheter, includes a relatively soft part and a relatively rigid part, wherein the exposed sealing area is formed by the soft part, and the relatively rigid part may include an attachment feature for removable connection of the assembly to the catheter. The lumen of the catheter, within the proximal section, may include a seal zone portion, which preferably includes a slit segment intersecting a funnel-like segment of a bore. The catheter proximal section may further include a feature for interlocking engagement with an accessory tool.

Catheter apparatus

A lead delivery apparatus includes an electrically conductive lead for an implantable medical device, a delivery shaft for delivering the lead to a target site, a fixator and a pulley structure. A flexible member is coupled to the delivery shaft and the lead and engages the pulley structure such that pulling a first portion of the flexible member moves the lead to the target site.

Growing community of inventors

Maple Grove, MN, United States of America

Scott William Hayden