Scimed Life Systems, Inc.

Boston Scientific Corporation

Boston Scientific Scimed, Inc.

Cardiac Pacemakers, Inc.

Boston Scientific Medical Device Limited

Henry J. Pepin

Henry John Pepin

Brian J Scovil

Todd Allen Berg

Sumit Agrawal

Jason A Galdonik

Somashekar Reddy

Peeyush Tomar

Mayank Bhatnagar

Michael William Sterud

Andrew G Richardson

Michael R Lange

Alan James O'Flynn

Michael S Ferrandino

Thomas J Holman

James O Gilkerson

Bruce Alan Tockman

G Shantanu Reddy

Pu Zhou

Lili Liu

Andrew L De Kock

Daniel J Foster

Brian R Reynolds

James K Cawthra, Jr

Peter Hall

Ajay Gupta

Christopher Alan Fuhs

Brice Lee Shireman

William H Penny

Benjamin Philip Gundale

Anthony F Tassoni, Jr

Timothy Lawrence Rubesch

Jeffrey M Welch

John D Kroeger

Poornachandra Nayak

John McSweeney

Brandon J Worcester

George N Omae

Michael Kuhn

Anne Victoria Rossi

Sohail Rahmani

Alan R Dombrowski

Seamus McGurran

Deepak Bhardwaj

Nilesh Raghunath Barhate

Ronald Killins, Jr

Alan James O'FLYNN

Brice L Shireman

Example medical devices are disclosed. An example medical device includes an elongate member having a proximal end region, a distal end region and an outer surface. The medical device also includes a plurality of filaments braided together in a first braided pattern along a first braided region of the elongate member, wherein the plurality of filaments extend continuously to a second braided region along the elongate member, wherein the plurality of filaments along the second braided region form a second braided pattern different from the first braided pattern.

Guide catheter with reinforcing member

A hemostasis valve for use in a medical device. The hemostasis valve may include a generally cylindrical body having a proximal side, a distal side, and a thickness extending therebetween. The proximal side may include a tapered central region having a surface sloped towards a center of the body and the distal side may include a distally extending curved central region.

Hemostasis valve design for introducer sheath

Hemostasis valves and methods for making and using hemostasis valves are disclosed. An example hemostasis valve may include a main body having a proximal end region. A cartridge may be at least partially disposed within the proximal end region. The cartridge including a seal member. The cartridge may have a proximal member, a distal member, and may define a seal holding region. The seal member may have an axial thickness of about 0.04 to about 0.2 inches. The seal member may be secured within the seal holding region by a mechanical bond.

Hemostasis valves and methods for making and using hemostasis valves

Implantable leads of a cardiac stimulus system are disclosed, as well as methods for implanting leads of a cardiac stimulus system. The lead may be comprised of a proximal portion having a coupler for coupling to an implantable pulse generator, an intermediate portion comprising a plurality of electrodes disposed thereon, and a distal portion. The intermediate portion may have a first diameter and the distal portion may have a second diameter. The distal portion may also have an attachment feature for attaching to a lead pulling tool for delivery to an ITV and an intercostal vein. Methods may include pulling a lead from a first position to a second position within the vasculature, exiting the vasculature at the second location, and attaching a portion of the lead that exits the vasculature to an electrode or implantable device for use with the lead.

Active medical device with attachment features

Hemostasis valves and methods for making and using hemostasis valves are disclosed. An example method for assembling a hemostasis valve may include positioning a plunger along a threaded proximal end region of a main body. The threaded proximal end region may include one or more threads and an axial slot extending through the one or more threads. The method may also include advancing the plunger along the threaded proximal end region to a position where a proximal end of the plunger is disposed distally of at least a portion of the one or more threads and disposing a nut adjacent to the threaded proximal end region. The method may also include aligning an alignment tab of the nut with the axial slot, engaging the nut with the one or more threads while the alignment tab is aligned with the axial slot, and rotating the nut 45-270&#xb0;.

Hemostasis valves and methods for making and using hemostasis valves are disclosed. An example hemostasis valve may include a main body having a distal end region and a proximal end region. A first seal member may be disposed within the proximal end region of the main body. A plunger may be coupled to the proximal end region of the main body. The plunger may be designed to shift between a first position and a second position. A first locking member may be disposed along the proximal end region of the main body. A second locking member may be disposed along the plunger. The second locking member may be designed to engage the first locking member.

Hemostasis valves and methods for making and using hemostasis valves are disclosed. An example hemostasis valve may include a main body having a proximal end region. A cartridge may be at least partially disposed within the proximal end region. The cartridge may include a seal member. The seal member may be designed to shift between an open configuration and a sealed configuration. A plunger, having an inner tubular region and a distal end, may be coupled to the proximal end region of the main body. The distal end of the inner tubular region may be spaced a clearance distance from a proximal end of the seal member so that when the seal member is in the sealed configuration and exposed to pressures of 80-250 pounds per square inch, the seal member deflects into contact with the distal end of the inner tubular region and remains in the sealed configuration.

A catheter hemostasis valve hub for a catheter or introducer sheath has a generally tubular shell with a first region and a second region having a greater thickness than the first region, a pre-slit hemostasis seal within the shell, and an end cap to retain the hemostasis seal within the shell having a web section. The hub is easily cut or slit after introduction of the catheter without prior breaking.

Cuttable catheter hub with integrated hemostasis valve

Various embodiments concern a guide catheter for delivery of an implantable lead within the coronary vein. Such a guide catheter can comprise a tubular body having a main lumen and at least one preformed bend. The tubular body can comprise a liner defining an inner surface, braiding circumferentially surrounding the liner, a jacket covering the braiding and defining an exterior surface of the tubular body, and a plurality of inflation tubes embedded within the jacket. The guide catheter can include a balloon mounted on the tubular body, each of the plurality of inflation tubes in communication with the balloon. The guide catheter can further include a hub providing access to the main lumen, the hub comprising a first port for introduction of contrast media into the main lumen and a second port in communication with the plurality of inflation tubes.

Guide catheter occlusion balloon with active inflation

The present invention relates generally to catheters for performing medical procedures including percutaneous transluminal coronary angioplasty. More particularly, the present invention relates to guide catheters, diagnostic catheters and balloon catheters with an improved shaft design. In a preferred embodiment, the present invention includes a catheter shaft comprising an elongate support member having an outer surface, the elongate support member preferably defining a lubricious liner; a first layer disposed over the lubricious liner, a second layer disposed over the first layer, a third layer disposed over the second layer, a fourth layer disposed over the third layer, and a fifth layer disposed over the fourth layer. In preferred embodiments, the first and third layers comprise an ultraviolet-curable epoxy which is cured to desired degrees at select axial locations on the shaft to provide desired stiffness.

Catheter incorporating a curable polymer layer to control flexibility

A catheter can be formed from an elongate shaft and a distal tip. The catheter can be formed by flaring a proximal end of the distal tip to form a flared proximal end and positioning the distal tip such that the flared proximal end of the distal tip overlaps a distal end of the outer layer. Heat and pressure are applied to melt and flow together a portion of the outer layer proximate the distal end of the shaft and the overlapped portion of the flared proximal end of the distal tip, thereby forming a joint between the elongate shaft and the distal tip.

Methods of forming catheters with soft distal tips

A tubing assembly for manufacture for a catheter of the type having an inner tubular member defining a lumen, an outer tubular member surrounding said inner member, and a support member mounted between the tubular members to provide rigidity to the flexible catheter. The support member comprises a high tensile strength wire braid, and in the preferred embodiment comprises a stainless steel wire braid which has been tempered or hardened. This higher tensile strength affords significantly greater kink resistance to the flexible catheter. One wire braid has a tensile strength in the range of 300 to 425 kpsi and a braid density of approximately 40 pic. The high tensile strength wire braid has the disadvantage of tending to flare out at its free ends. Therefore, means are provided for preventing the flaring of the wire braid during manufacture of the tubing assembly. One means includes adhesive applied over the free ends. Another means includes a restraining sleeve applied over the free ends.

Catheter having a high tensile strength braid wire constraint and method of manufacture

Catheter incorporating a curable polymer layer to control flexibility and method of manufacture

An intravascular catheter having a multi-layered distal tip including an inner layer, an intermediate layer and an outer layer wherein the intermediate layer is formed of a polymeric material loaded with a high percentage of radiopaque agent, and the inner and outer layers are formed of readily bondable materials which substantially cover the intermediate layer to thereby increase surface area contact and bond strength therebetween.

Intravascular catheter having multi-layered tip

Growing community of inventors

Loretto, MN, United States of America

Henry John Pepin