Abstract:
Methods for making medical devices having porous coatings. Methods may comprise providing a tubing section having inner and outer surfaces and positioning a nozzle proximate to a target surface of the parent tubing section. A powder form of the porous coating may be delivered toward the tubing section, and a laser may be directed at the powder to melt the powder to form a melt pool. The melt pool can solidify to form the porous coating on the target surface. Portions of the parent tubing section may then be cut away to form the support structure of the medical device, such as a stent.
Abstract:
According to an aspect of the present invention a method is provided which a porous medical article is contacted with a solution that contains a therapeutic agent and a solvent in order to load the pores of the medical article, after which the solvent is sublimated.
Abstract:
An implantable stent comprising a first strut having an abluminal surface, and subluminal surface, and at least one side surface; a first depression formed in the abluminal surface; and a first support element at least partially disposed in the first depression; wherein at least a portion of the first support element extends beyond the abluminal surface of the first strut.
Abstract:
An implantable or insertable medical device is provided which includes as components: (a) a substrate component comprising a depression that is at least partially filled with a therapeutic agent-containing material that comprises a first therapeutic agent, and (b) a particulate composition disposed in the depression such that it regulates transport of chemical species between the depression and the exterior of the device upon implantation or insertion of the device into a subject.
Abstract:
The present invention is generally directed to implantable medical devices for delivering therapeutic agents to the body tissue of a patient and methods for making such medical devices. In particular, the present invention is directed to implantable medical devices, such as intravascular stents, having a surface that includes a plurality of cavities and a plurality of pores and a composition disposed in the pores and/or cavities, as well as, implantable medical devices, such as intravascular stents, having a surface that has a coating composition disposed on the surface, wherein the coating composition includes a plurality of cavities and a plurality of pores and another coating composition disposed in the pores and/or cavities.
Abstract:
The present invention is directed to methods, processes, and systems for delivering therapeutic agent to a medical device. Under some methods, processes, and systems of the invention, particles including a magnetic material and a therapeutic agent may be directed towards a medical device via magnetic attraction. In another embodiment particles including a magnetic material may force a therapeutic agent/solvent solution into porous matrix by using a magnetic attraction. In still another embodiment, a medical device having at least a portion thereof including a magnetic material is used to attract and adhere particles comprising magnetic material and therapeutic agent to a target surface of the medical device, wherein the particles are fused to the target surface.
Abstract:
The present invention relates to a coating assembly and methods that employ the coating assembly to control the thickness of therapeutic or other coatings delivered to a medical device during a coating process. In one embodiment the coating assembly may include a coating plate having a coating transfer surface and a shoulder having a first height, a mandrel moveable over the coating transfer surface, and a coating dispenser positioned in fluid communication with the coating transfer surface. The invention also includes a method of coating a medical device. This method may include placing a medical device on a mandrel, dispensing coating onto a coating transfer surface of a coating plate, moving the mandrel and the medical device over the coating transfer surface of the coating plate so that coating resident on the coating transfer surface transfers to an exposed surface of the medical device, and removing the medical device from the mandrel.
Abstract:
The present invention is directed to methods, processes, and systems for selectively driving therapeutic into at least a portion of a porous matrix of a medical implant. Under methods and processes of the invention, a medical implant may be provided having at least a portion thereof comprising a porous matrix. An injector in fluid communication with a fluid source deliver therapeutic within the porous matrix. The porous matrix may be configured to control the elution rate.
Abstract:
A mixing valve adapter is disclosed to connect water lines from a mixing valve to a sink faucet. An example of the mixing valve adapter includes an adapter body for connection between the mixing valve and the sink faucet. Valve connections of the adapter body connect to the respective water source connections and the mixing valve. Faucet connections on the adapter body connect to the sink faucet. The faucet connections have reinforcement structures. One of the valve connections also has a reinforcement structure. Connection housings connect the faucet connections to the sink faucet.
Abstract:
A mixing valve adapter is disclosed for a sink faucet with a mixing valve. An example mixing valve adapter includes an adapter body formed as a rigid unitary structure that does not flex so that the mixing valve is mounted rigid to the sink faucet without separately mounting the mixing valve apart from the sink faucet. The example mixing valve adapter also includes a first valve connection on the adapter body for connecting mixed cold and hot water from the mixing valve, and a first faucet connection on the adapter body for connecting the mixed cold and hot water to the sink faucet. The example mixing valve adapter also includes a second valve connection on the adapter body for connecting cold water from the mixing valve, and a second faucet connection on the adapter body for connecting the cold water to the sink faucet.