Becton Dickinson and Company Limited

Victor A Williamitis

Robert A Taller

Jeanne E Lambert

Min Shiu Lee

Donald D Solomon

Steven H Mersch

Charles W Daugherty

Kevin G Tingey

Can B Hu

David E Spielvogel

Charles W McGary, Jr

An apparatus for applying a coating to an object includes a pair of reciprocating members which each include a porous resilient pad mounted for movement toward and away from each other. The apparatus includes a coating supply system for supplying coating to the resilient pads. The pads have a movement sequence from an initial rest position where the pads are spaced apart from one another to a coating loading position where the pads are in physical contact and have a degree of compression with each other to load the coating onto the pads, then the pads are moved to an intermediate rest position with the pads spaced apart an the object to be coated is moved between the pads. The sequence then includes a coating delivery position where the pads are in physical contact with each other and the object so that the pads have a degree of compression with each other and the object thereby applying the coating to the object.

Method for coating objects with a porous resilient matrix

Apparatus for coating of objects using a porous resilient matrix

A method for visualization of a lubricant coating on a surface of an article includes dissolving a fluorescent agent into a lubricant. The method then includes applying the fluorescenated lubricant to coat a surface of the article. The coated article is then irradiated with an electromagnetic radiation capable of inducing a fluorescent emission in the fluorescent agent and the fluorescent emission is observed to detect the coverage of the lubricant on the surface of the article.

Lubricant soluble fluorescent agent and method for its use in a system

An apparatus for applying a coating to an object includes a pair of rotating members each including a porous resilient roll mounted for counter-rotatory movement. The members are mounted so that they contact each other during a segment of the movement and are out of contact with each other at other segments of the movement. The apparatus includes a coating supply system for supplying a coating to the resilient rolls. The rotatory movement of the members includes a coating loading segment where the resilient rolls are in physical contact and have a degree of compression with the coating supply system for loading the coating into the rolls. The sequential movement also includes an intermediate segment where the resilient rolls are out of contact with each other and where an object to be coated is movable into position for movement between the resilient rolls when the rolls are in a coating delivery segment. In the coating delivery segment, the resilient rolls are in physical contact and have a degree of compression with each other and with the object to be coated as the object is moved between the rolls. The coating delivery segment serves to apply the coating to the object. A method for applying a coating to an object includes moving an object to be coated between rotating members, each of which includes a porous resilient roll mounted for counter rotatory motion to each other in a coating delivery segment of a sequential movement.

Method for coating of objects using a rotating resilient matrix

Apparatus and method for coating of objects using a porous resilient

A metal article has a coating of a noncuring polar lubricant. Preferred articles are of stainless steel and may be cutting devices such as needles, lancets and cannulas or sliding devices such as stylets and guidewires. Preferred noncuring polar lubricants are polysiloxanes terminated with a polar group. Particularly preferred lubricants are aminoalkyl or carboxyalkyl polysiloxanes. The lubricated metal article may be in a sliding relationship with a plastic article such as a catheter-guidewire or a catheter-cannula assembly. The plastic portion of the assembly may also include a lubricant.

Lubricated metal articles and assembly containing same

A leach resistant composition includes a quaternary ammonium complex of heparin and a silicone. A method for applying a coating of the composition to a surface of a medical article is within the purview of the present invention. Medical articles having surfaces which are both lubricious and antithrombogenic, are produced in accordance with the method hereof.

Blood compatible, lubricious article and composition and method therefor

A method for catheter tipping including applying to a catheter blank a layer of a noncuring aminoalkyl terminated polysiloxane lubricant, mounting the lubricated blank on a mandrel and advancing the mandrel-catheter assembly into a heated die so that the die causes the heated tip of the blank to assume the shape of the die. The catheter may then be cut beyond the shaped tip and easily removed from both the die and the mandrel.

Method for die release during catheter tipping

A method for lubricating a low surface energy polymeric surface includes plasma treatment of the surface. A film of a polysiloxane lubricant is applied to the plasma-treated surface to give an even coating of the lubricant which is stable for a protracted period of time.

Method for preparing lubricated surfaces

A lubricating film for preventing time-temperature dependent increase in adhesion in a catheter assembly including an interference-fitted thermoplastic catheter wherein a film of polydimethylsiloxane is deposited on the tip of the cannula, preferably from a solution of a volatile solvent.

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Dayton, OH, United States of America

Victor A Williamitis