# US 5,344,389 A · Combination seal and constricting device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,344,389 A - Document ID: US5344389A - Status: Granted - Kind: A - Application number: 07/890,446 - Filed: 1992-05-28 - Granted: 1994-09-06 - Earliest claimed: 1991-01-22 - Assignees: Mission Pharmacal Company - Inventors: Neill B. Walsdorf; Dan K. Crawford; Perry W. Nadig - Web page: https://patentgrep.com/patent/US5344389A ## CPC - A61F 5/41: Devices for promoting penis erection - A61F 2005/412: {by vacuum means} - A61F 2005/414: {by constricting means} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A combination seal and constricting device and method of use for the external treatment of impotence is provided. The subject device is made of a pliable elastomeric material and is characterized by a centrally disposed cylindrical collar connected at one end thereof to a radially extending skirt having a forwardly facing, annular, elastomeric seating and sealing surface and a rearwardly facing surface substantially flush with one end of said collar. When used in combination with a conventional vacuum erection device, the combination seal and constricting device is positioned at the open end of the evacuation cylinder of the conventional vacuum erection device with the radially extending skirt flush between the open end of the cylinder and the user's groin. In this position, the subject device aids in establishing and maintaining a substantially airtight seal around the open end of the cylinder and the base of the penis during evacuation pumping. ## Claims ### Claim 1 A combination seal and constricting device adapated for use in the external treatment of erectile dysfunction, comprising a substantially cylindrical elastomeric collar having a diameter expandable to accommodate a penis and a radially extending skirt having a forwardly facing, annular, elastomeric seating and sealing surface, a rearwardly facing surface substantially flush with one end of said collar, and a skirt edge, said skirt having a circumference and a radius extending from said collar to said skirt edge, the radius being substantially greater than the unexpanded collar diameter around the entire circumference. ### Claim 2 (depends on 1) The device of claim 1 wherein said collar and said skirt are unitarily molded. ### Claim 3 (depends on 1) The device of claim 1 wherein said skirt further comprises beads evenly spaced around the circumference of said skirt edge. ### Claim 4 (depends on 1) The device of claim 1 wherein said skirt further comprises arcuate ribs disposed radially outward from said collar. ### Claim 5 (depends on 4) The device of claim 4 further comprising at least two sets of ribs disposed diametrically opposite the collar. ### Claim 6 (depends on 1) The device of claim 1 wherein said collar has a height and diameter, with the height ranging from about 0.5 to about 1.2 times the diameter. ### Claim 7 (depends on 1) The device of claim 1 wherein said collar has a height and diameter which are about equal. ### Claim 8 (depends on 1) The device of claim 1 wherein said cylindrical collar has a height of about 1.6 cm. ### Claim 9 (depends on 1) The device of claim 1 wherein said collar has an unexpanded outside diameter of about 1.4 cm. and defines an aperture having an unexpanded inside diameter of about 0.84 cm that is expandable to a diameter of about 5 cm. ### Claim 10 (depends on 1) The device of claim 1 where, in the unexpanded state, the radius of said skirt extends about 4.2 cm from said collar to said skirt edge. ### Claim 11 A combination seal and constricting device adapted for use with a vacuum erection device for the external treatment of erectile dysfunction, comprising a substantially cylindrical elastomeric collar having a diameter expandable to accommodate a penis and a radially extending skirt having a forwardly facing, annular, elastomeric seating and sealing surface, a rearwardly facing surface substantially flush with one end of said collar, and a skirt edge, said skirt having a circumference and a radius extending from said collar to said skirt edge, the radius being substantially greater than the collar diameter around the entire circumference. ### Claim 12 (depends on 11) The device of claim 11 wherein said skirt further comprises beads evenly spaced around the circumference of said skirt edge. ### Claim 13 (depends on 11) The device of claim 11 wherein said skirt further comprises at least two sets of arcuate ribs on said seating and sealing surface disposed radially outward from said collar to a distance less than half said skirt radius. ### Claim 14 (depends on 11) A method for using the combination seal and constricting device of claim 11 with a vacuum erection device which comprises a vacuum cylinder with an open end, comprising the steps of: a. placing said constricting device over a user's flaccid penis so that said constricting device encircles said penis and said rearwardly facing surface of said skirt rests flush against a user's groin; b. positioning said vacuum cylinder over said penis so that said open end rests flush against said elastomeric seating surface of said skirt; c. pressing said vacuum cylinder toward said groin so that said open end pushes into said seating surface of said skirt creating an airtight seal between said cylinder and said combination seal and constricting device; d. operating said vacuum erection device until said penis is in the desired erect state; and e. withdrawing said vacuum erection device from said erect penis. ### Claim 15 A system for the treatment of penile erectile dysfunction, comprising: a. a vacuum cylinder; b. an elastomeric combination seal and constricting device, comprising: (1) elastomeric self constricting means for constricting the penis; (2) pliable elastomeric seal means extending radially outward from said constricting means for providing a continuous annular seating and sealing surface area for said cylinder around said constricting means; and (3) circumferentially extending skirt means extending radially outward substantially beyond said annular seating and sealing surface area. ### Claim 16 (depends on 15) The system of claim 15 further comprising an applicator assembly wherein said applicator assembly comprises an applicator cone and an applicator sleeve. ### Claim 17 (depends on 15) The system of claim 15 wherein said constricting means comprises a substantially cylindrical elastomeric collar having a diameter expandable to accommodate said penis. ### Claim 18 (depends on 15) The system of claim 15 wherein said skirt means comprises an edge and beads evenly spaced around the circumference of said edge. ### Claim 19 (depends on 15) The system of claim 15 wherein the combination seal and constricting device comprises at least two sets of diametrically opposed arcuate ribs, ### Claim 20 (depends on 19) The system of claim 19 wherein said annular seating and sealing surface area extends radially outward from said arcuate ribs.