摘要:
An expandable medical balloon having at least one static state, at least one expanded state, and at least one deflated state, the expandable medical balloon including at least one active region, the at least one active region including electroactive polymer.
摘要:
The invention relates to an expandable marker device having a pre-delivery state, a delivery state and at least one active region. The at least one active region incorporates electroactive polymer material. In addition, the expandable marker includes at least one radiopaque material to enhance observation through a medical imaging device.
摘要:
Medical devices or components thereof having electroactive polymer actuators embedded within at least a portion of the device of component thereof, and novel electroactive polymer actuators formed with a conductive substrate layer and an electroactive polymer layer, the electroactive polymer actuated upon application of a voltage to surrounding liquid electrolyte, the actuators may be embedded within an inert polymer matrix material, or within solid polyelectrolyte matrix material.
摘要:
An expandable medical balloon having at least one static state, at least one expanded state, and at least one deflated state, the expandable medical balloon including at least one active region, the at least one active region including electroactive polymer.
摘要:
The invention relates to an expandable marker device having a pre-delivery state, a delivery state and at least one active region. The at least one active region incorporates electroactive polymer material. In addition, the expandable marker includes at least one radiopaque material to enhance observation through a medical imaging device.
摘要:
A stent assembly comprises a rotatable sheath and a stent. The assembly is crimped or reduced in diameter prior to loading onto a catheter by one or more crimping apparatuses. One crimping apparatus comprises a blade having a stepped configuration. A mandrel may be used to support the assembly during crimping. The mandrel may have an expandable region. A protective sheath may be used to protect the stent during crimping and to redirect the crimping forces to desired locations about the assembly.
摘要:
A catheter system comprises a catheter comprising a distal portion, a proximal portion and an inner shaft. The inner shaft comprises a medical device receiving region for receiving and carrying a medical device. The retaining device is at least partially constructed of an electroactive polymer. The retaining device is located on or adjacent to the medical device receiving region. The electroactive polymer of the retaining device has an activated state and an inactivated state. The retaining device is capable of retaining a medical device to the catheter and releasing the medical device from the catheter by transitioning between the activated state and the inactivated state.
摘要:
A method of producing a tubular member which includes providing at least one micro-extruder configured to extrude at least one material and providing a surface configured to accept the material extruded from the micro-extruder.
摘要:
Medical devices that include micromachined hypotubes or that have themselves been micromachined can provide advantages in flexibility, strength and other desirable properties. Examples of such medical devices may include catheters such as guide catheters and balloon catheters. Such devices may also include dual shaft medical devices in which an outer shaft is reversibly lockable onto an inner shaft.
摘要:
Cardioprotective pacing is applied to prevent and/or reduce cardiac injury associated with myocardial infarction (MI) and revascularization procedure. Pacing pulses are generated from a flexible pacemaker circuit integrated with a percutaneous transluminal vascular intervention (PTVI) device and delivered through pacing electrodes incorporated onto the PTVI device during the revascularization procedure.