摘要:
A medical balloon comprising a woven textile tube coated on at least its outer surface with a polymer material to seal the tube and thereby define an inflatable balloon. The medical balloon may be formed by coating the textile tube with a polymer material by a dispersion or dipping process.
摘要:
A drug coated balloon (DCB) catheter (4) comprising a connector (8), a shaft (20) extending from a proximal end (24) to a distal end (28) along an axial direction (X-X) and having a guidewire lumen (32) and an inflation lumen (36), the shaft (20) being connected to the connector (8) on said proximal end (24) and provided with an inflatable balloon (48), fluidically connected with said inflation lumen (36) in order to be selectively inflated and/or deflated. Advantageously the balloon (48) is conical and axis-symmetrical around a prevalent extension axis (S-S), wherein the balloon (48) has an increasing diameter (60), moving from a first end (52) to a second end (56), said diameter (60) being measured on a section plane perpendicular to said prevalent extension axis (S-S), wherein an external surface (64) of the balloon (48) is coated with a drug for treating restenosis.
摘要:
Disclosed herein is a drug-coated medical device in the form of a balloon having an inner surface and an outer hydrophobic surface, an adhesion balance layer directly on the outer hydrophobic surface of the balloon, comprising a hydrophilic polymer and/or a hydrophilic compound where the hydrophilic compound has a molecular weight of less than 1,000 Daltons, and a therapeutic layer directly on the adhesion balance layer comprising a therapeutic agent and a pharmaceutically acceptable carrier, wherein the therapeutic agent is a hydrophobic therapeutic agent with one or more hydrogen-bonding groups and is provided as discrete drug particles in the therapeutic layer, the drug particles have at least one dimension that is less than 25 μηι and are uniformly distributed on the surface of the balloon, and the pharmaceutically acceptable carrier is hydrophilic and has a molecular weight of less than 1,000 Daltons. A process to make the drug-coated medical device and uses thereof are also disclosed.
摘要:
The present disclosure relates generally to the use of medical devices for the treatment of vascular conditions. In particular, the present disclosure provides devices and methods for using electrically-induced pressure waves to disrupt vascular blockages. The present disclosure not only provides devices and methods for using electrically-induced pressure waves to disrupt vascular blockages, but the present disclosure also provides devices and method for assisting the guidewire in penetrating an occlusion, devices and method for using a sealable valve in the tip of the balloon catheter to reduce the overall size and diameter of the balloon catheter, thereby allowing the balloon catheter to penetrate smaller size blood vessels and devices. Given the persistence of coronary artery disease (CAD) and peripheral artery disease (PAD), there remains a need for improved therapeutic methods designed not only to reduce vascular blockages in the short term, but also to prevent future complications such as restenosis.
摘要:
Disclosed herein are inflatable balloon apparatuses for use in stopping massive blood flow from a uterine wall due trauma or disease. Also disclosed is a method for using the apparatuses.
摘要:
A nested balloon is provided where each balloon is formed from tubing that optimizes the inner wall stretch thus providing maximum balloon strength. The high pressure, nested balloon is provided with layers that allow for slipping, such that the balloon has a very high pressure rating and toughness, yet excellent folding characteristics. Methods for producing such nested balloons using existing balloon forming equipment are also provided. The nested balloons can have layers with low-friction surfaces. The nested balloons are preferably manufactured using a variety of methods.
摘要:
A measuring balloon has an inner bulbous balloon formed from a non-compliant or semi-compliant material and has a central smaller diameter inner waist and two larger diameter bulbs on each side of the inner waist. A compliant outer waist bladder is located on the outside of the inner bulbous balloon adjacent to the inner waist and is inflated via a separate inflation lumen. The inner balloon is inflated at a higher pressure to dilate stenotic aortic valve leaflets, and provide alignment and positioning of the measuring balloon across the aortic annulus. The bladder waist is inflated to a lower pressure to make contact with the aortic valve annulus. Marker bands positioned on the outside of the measuring balloon provide determination of annulus diameter and ovality.
摘要:
The present disclosure describes implantable medical devices comprising covers, such as a balloon cover (106). Such devices can comprise a first layer of a porous polymeric material (312), such as ePTFE, surrounded by layers of a porous polymeric material (316) having an imbibed elastomer, such as polyurethane. The cover can be used to assist in deployment of an expandable implant, such as a stent-graft, within the body of the patient.
摘要:
Multilayer balloon for a catheter comprises a first layer made of a first polymer material having a first Shore durometer hardness, a second layer made of a second polymer material having a second Shore durometer hardness greater than the first Shore durometer hardness, wherein the second layer is an inner layer relative to the first layer, and a third layer made of a third polymer material having a third Shore durometer hardness less the first Shore durometer hardness, wherein the third layer is an inner layer relative to the second layer. Method of making a multilayer balloon for a catheter and a balloon catheter are also provided.
摘要:
Agents and devices for affecting nerve function are described. In some variations, a combination of agents, e.g., a cardiac glycoside, an ACE inhibitor, and an NSAID are delivered to affect nerve function. The agent may be delivered locally in a site-specific manner to a targeted nerve or portion of a nerve. For example, the agent may be delivered locally to the renal nerves to impair their function and treat hypertension. One variation of a delivery device includes one or more needle housings supported by a balloon. A delivery needle is slidably disposed within a needle lumen of each needle housing.