Patent Portfolio for Sale:

Second Generation Slippery Thin Film Technology, Applicable to Catheters , Introducers and Endoscope Covers    

Medical Device Patents - FDA Approvals, Prototypes and Manufacturing Equipment


The core technology is a Generation II PTFE thin film, which can be heat welded to itself ( allowing tubing, including multi-lumen catheters, bags, etc to be fabricated). Through further specialized processing (tensilization / stretching /cold flow molecular orientation /densification occurrs), this film can be 2 to 7 times more slippery than a Teflon-tm frying pan, which makes it the lowest dry friction co-efficient substance in the world today. In addition, it is crystalline (not porous), so it is an absolute biobarrier. The material is softer than fine China silk, and is extremely supple.

Primary Application of the Technology

There are multiple applications for this technology, including urology "inverting sheath" catheters, introducers and endoscope sheath covers. In addition, 4 FDA 510(k) approvals have been obtained- 2 for urology catheters/ procedural introducers, and 2 for endoscope covers.

Other Potential Applications

In addition to urology catheters and endoscope covers, many additional applications are envisioned. These include: wound drainage catheters, surgical introducers/ports, vascular access catheters and grafts, stent covers, peritoneal dialysis access and drug delivery catheters.

The Problem Solved by the Technology

The technology could enable true sterile access, thus potentially eliminating catheter-induced infections. The extremely slippery nature of the material could enable catheter-based applications that call for the ability to maneuver around obstructions. The combination of sterility and biocompatibility may minimize or eliminate the need to use heparin in blood contact catheter applications.

How the Technology Solves the Problem

Reduced friction coefficient is one of the Holy Grails, and this material resets the bar. Bio barrier to the Phage virus ( size corresponds to super small of HIV virus) was part of the FDA submission for the endoscope sheaths. Better optics ( clarified PTFE window), access channels are better & bigger than the scope itself, the limited competition blocks the scope channels, so only viewing is possible.

Competitive Advantage

Advanced polymer / PTFE performance, that permits a new technology platform, thus new enabling devices to be realistically constructed and better medical treatment options to be available to physicians.

Additional Information

The package available for sale or licensing includes: 6 issued US patents, 4 US patent applications, 3 issued European patents, 1 European patent application; 4 FDA 510(k) approvals; molds, assembly tools and trade secrets.

Protoypes and pilot production of the inverting sheath catheter, introducers and endoscope covers have been initiated, and FDA 510(k) approvals have been obtained, but sales have not commenced. Needs to be carried forward to the next steps, by an established Device Company.

The inverting sheath catheter was specifically designed to eliminate urinary tract infections ("UTI"), and initial tests suggest that this goal has been achieved.

The endoscope sheaths have several unique performance features. They fit all commercially available endoscopes, have far better optics and have side access channels.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 604: Surgery

Class 606: Surgery

Class 156: Adhesive Bonding And Miscellaneous Chemical Manufacture

This is the generic class for: Manufacturing processes and apparatus; manufacture of articles of commerce in which one of the manufacturing steps includes a chemical reaction; manufacture of panels from settable inorganic compositions; manufacture of electrical conductors of indefinite length.

Subclass 308.4: Only part of contacting laminae surfaces bonded; e.g., seam, seal, etc.
Subclass 309.6: Involving defined plastic flow or melting of entire lamina

Class 600: Surgery


Class 138: Pipes And Tubular Conduits

Tubular members of definite or indefinite length including wall structure of the tubular members. Fluid pressure compensators, flow regulators, or baffles not restricted by structure to use with any particular art. Devices for thawing frozen fluid in pipes, for preventing the fluid in the pipes from freezing and for preventing the pipe from bursting if frozen. Pipes with closures and plugs where tied with the structure of the pipe or limited by structure to use with a pipe. Methods and apparatus for repairing pipes where not elsewhere classifiable.

Subclass 115: Longitudinally extending common wall
Subclass 128: Longitudinally seamed

Class 277: Seal For A Joint Or Juncture

A sealing means or a process of using a seal to act at a joint or juncture of adjacent parts to oppose passage of a fluid. The sealing means or process: (1) closes a space formed between or (2) deflects the fluid away from the joint or juncture by using the fluid, another fluid, or an article.

Subclass 946: PTFE TEFLON

Class 602: Surgery: Splint, Brace, Or Bandage

Subclass 42: Skin laceration or wound cover