Abstract: Various implementations include an assistive driving device including a base, a first post, a second post, a third post, and a selector. The first post is for receiving a portion of a palm of a hand of a user and has a proximal end and a distal end. The second post has a proximal end and a distal end. The third post has a proximal end and a distal end. The proximal ends of the first, second, and third posts are coupled to the base. The second post and the third post are positioned to receive a portion of an arm of the user. The selector is spaced apart from the first post and positioned such that the selector is actuatable with a dorsum of the hand of the user.

Abstract: Various implementations include an arteriovenous graft device. The device includes an outer conduit and an inner conduit. The outer conduit has a first outer conduit end and a second outer conduit end opposite the first outer conduit end. The first outer conduit end defines an outer conduit opening extending from the first outer conduit end to the second outer conduit end. The first outer conduit end is configured to be in fluid communication with an artery and the second outer conduit end is configured to be in fluid communication with a vein. The inner conduit defines an inner conduit opening. The inner conduit is sized to be disposed within the outer conduit opening. The inner conduit is movable between a collapsed position and an expandable position.

Abstract: Various implementations include ahead frame holding device. The device includes a base, a head rest, and at least one head frame holder. The head rest has a first end coupled to the base and a second end spaced apart from the first end. The at least one head frame holder has a first end coupled to the base and a second end spaced apart from the first end. The second end of the at least one head frame holder includes a head frame coupler for coupling the head frame to the device.

Abstract: Various implementations include a device for positioning a knee during an x-ray. The device includes a first portion, a second portion, and a foot plate. The first portion has a first surface, a second surface spaced apart from the first surface, a first edge extending between the first surface and the second surface, and a second edge spaced apart from the first edge. The second portion has a first surface, a second surface spaced apart from the first surface, a first edge extending between the first surface and the second surface, and a second edge spaced apart from the first edge. The first edge of the first portion is rotatably coupled to the second edge of the second portion. The foot plate is coupled to the first surface of the first portion.

Abstract: A catheter may include a catheter body having a tubular shape, a cuff encircling the catheter body, and a wire mesh attached to and encircling the catheter body. The cuff may be configured for facilitating fibrous tissue growth. The wire mesh may be configured for radially expanding away from the catheter body.

Abstract: Various implementations include an assistive driving device including a base, a first post, a second post, a third post, and a selector. The first post is for receiving a portion of a palm of a hand of a user and has a proximal end and a distal end. The second post has a proximal end and a distal end. The third post has a proximal end and a distal end. The proximal ends of the first, second, and third posts are coupled to the base. The second post and the third post are positioned to receive a portion of an arm of the user. The selector is spaced apart from the first post and positioned such that the selector is actuatable with a dorsum of the hand of the user.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to the backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. Medical devices coated with the surfactant polymers are also provided. The surfactant polymers may be used to decrease the thrombogenic properties, encapsulation, and bacterial colonization of medical devices.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to the backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. Medical devices coated with the surfactant polymers are also provided. The surfactant polymers may be used to decrease the thrombogenic properties, encapsulation, and bacterial colonization of medical devices.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages.

Abstract: Comblike, surfactant polymers for changing the surface properties of biomaterials are provided. Such surfactant polymers comprise a polymeric backbone of repeating monomeric units having functional groups for coupling with side chains, a plurality of hydrophobic side chains linked to said backbone via the functional groups, and a plurality of hydrophilic side chains linked to said backbone via the functional groups. The hydrophobic side chains comprise an alkyl group comprising from 2 to 18 methylene groups. The alkyl groups are linked to the polymeric backbone through ester linkages, secondary amine linkages, or, preferably, amide linkages.