# US 6,293,928 B1 · Cannula for vaginal irrigations > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,293,928 B1 - Document ID: US6293928B1 - Status: Granted - Kind: B1 - Application number: 09/223,460 - Filed: 1998-12-30 - Granted: 2001-09-25 - Earliest claimed: 1997-07-29 - Assignees: Medi Service S.r.l. - Inventors: Roberto Fasani - Web page: https://patentgrep.com/patent/US6293928B1 ## CPC - A61M 3/0279: {Cannula; Nozzles; Tips; their connection means} - A61M 31/00: Devices for introducing or retaining media, e.g. remedies, in cavities of the body (A61M25/00 takes precedence {; introducing or retaining ophthalmic products into the ocular cavities A61F9/0008}) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A cannula for vaginal irrigations includes a straight cylindrical duct (1) whose proximal end is shaped to form a connection (4) for the mounting on a supplying device (5) containing a treating solution, as well as an ogive (2) extending rearwards from the distal end of said duct (1) so as to enclose externally the distal portion of the duct (1), whose distal end is in communication with the outside through a ring of at least four holes (3) formed on the tip of the ogive (2). The ogive (2) has an elliptical shape both in the longitudinal plane and in the plane orthogonal to the longitudinal axis and extends almost to mid-length of the duct (1), while the holes (3) are inclined at 30° with respect to the axis of the duct (1) both in the sagittal plane and in the longitudinal plane orthogonal thereto. The anatomical shape of the ogive (2) and the arrangement of the holes (3) provide an irrigation which is correct, effective and without risks for the user. ## Claims ### Claim 1 A cannula for vaginal irrigations including a straight cylindrical duct (1) having a proximal end which is shaped to form a connection (4) for being mounted on a supplying device containing a treating solution and a rigid ogive (2), said olive (2) having a first end and an opposing second end, said first end positioned on a distal end of said duct (1) and said second end extending toward the proximal end of said duct so as to enclose externally a distal portion of the duct (1), said distal end of said duct being in external communication through a ring of at least four holes (3) formed on a tip of said ogive (2). ### Claim 2 (depends on 1) A cannula according to claim 1, characterized in that the ogive (2) has an elliptical shape in the longitudinal plane. ### Claim 3 (depends on 1) A cannula according to claim 1, characterized in that the ogive (2) has an elliptical shape in the plane orthogonal to the longitudinal axis, with a ratio between the longer axis (a1) and the shorter axis (a2) equal to 10/9. ### Claim 4 (depends on 3) A cannula according to claim 3, characterized in that the longer axis (a1) is 27 mm long and the shorter axis (a2) is 24.3 mm long. ### Claim 5 (depends on 1) A cannula according to claim 1, characterized in that the duct (1) is 80 mm long. ### Claim 6 (depends on 1) A cannula according to claim 1, characterized in that the ogive (2) substantially extends up to the middle of the length of the duct (1). ### Claim 7 (depends on 1) A cannula according to claim 1, characterized in that the proximal end of the ogive (2) is cut along a plane orthogonal to the axis of the duct (1) and a lightening crown (2a) is formed inside the ogive (2). ### Claim 8 (depends on 1) A cannula according to claim 1, characterized in that the holes (3) have an inclination between 25° and 35°, with respect to the axis of the duct (1) both in the sagittal plane and in the longitudinal plane orthogonal to said sagittal plane. ### Claim 9 (depends on 1) A cannula according to claim 1, characterized in that the holes (3) have a diameter between 1 and 2 mm. ### Claim 10 (depends on 1) A cannula according to claim 1, characterized in that the connection (4) is formed with an inclination between 20° and 30° in the sagittal plane with respect to the axis of the duct (1). ### Claim 11 (depends on 1) A cannula according to claim 1, characterized in that a downflow conduit (6) parallel to the duct (1) is formed in the ogive (2). ### Claim 12 (depends on 11) A cannula according to claim 11, characterized in that the downflow conduit (6) has the same inner diameter of the duct (1). ### Claim 13 A cannula for vaginal irrigations including a straight cylindrical duct (1) having a proximal end which is shaped to form a connection (4) for being mounted on a supplying device containing a treating solution and a substantially rigid ogive (2) extending rearwards from a distal end of said duct (1) toward the proximal end of said duct so as to enclose externally a distal portion of the duct (1), whose distal end is in external communication through a ring of at least four holes (3) formed on a tip of said ogive (2), the connection (4) is formed with an inclination between 20° and 30° in the sagittal plane with respect to the axis of the duct (1), the cannula further including a downflow conduit (6) parallel to the duct (1) formed in the ogive (2) wherein the downflow conduit (6) is formed in the sagittal plane on the side opposite with respect to the inclination of the connection (4). ### Claim 14 A vaginal douche including a container (5) suitable to supply a solution for vaginal irrigations, the douche including a cannula for vaginal irrigations including a straight cylindrical duct (1) having a proximal end which is shaped to form a connection (4) for being mounted on a supplying device containing a treating solution and a rigid ogive (2), said ogive (2) having a first end and an opposing second end, said first end positioned on a distal end of said duct (1) and said second end extending toward the proximal end of said duct so as to enclose externally a distal portion of the duct (1), whose distal end is in external communication through a ring of at least four holes (3) formed on a tip of said ogive (2).