# US 2008/0188742 A1 · Sheath > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0188742 A1 - Document ID: US20080188742A1 - Status: Published application - Kind: A1 - Application number: 12/078,483 - Filed: 2008-04-01 - Published: 2008-08-07 - Earliest claimed: 2004-06-08 - Inventors: Stuart H. Miller - Web page: https://patentgrep.com/patent/US20080188742A1 ## CPC - A61B 17/12022: {Occluding by internal devices, e.g. balloons or releasable wires (plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20)} - A61B 1/00135: {Oversleeves mounted on the endoscope prior to insertion} - A61M 25/0662: {Guide tubes} - A61B 2017/00336: {with a protective sleeve, e.g. retractable or slidable} - A61B 2090/08021: {of the patient or his organs} - A61M 25/09: Guide wires - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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 sheath shaped and dimensioned for reducing trauma and easing insertion thereof includes an inner sheath member, the inner sheath member including an inner sheath tip having a primary bevel and a circumferential conical surface. The sheath also includes an outer sheath member shaped and dimensioned to fit around the inner sheath member in a manner permitting relative movement. The outer sheath member includes an outer sheath tip having a primary bevel and a circumferential conical surface. ## Claims ### Claim 1 A sheath shaped and dimensioned for reducing trauma and easing insertion thereof, comprising: an inner sheath member, the inner sheath member including an inner sheath tip having a primary bevel and a circumferential conical surface, wherein the primary bevel of the inner sheath member extends diametrically across the inner sheath member and the inner sheath tip is formed with a long distal end that extends further than a diametrically opposed short distal end, and the long distal end includes an arc length; an outer sheath member shaped and dimensioned to fit around the inner sheath member in a manner permitting relative movement, the outer sheath member including an outer sheath tip having a primary bevel and a circumferential conical surface, and wherein the primary bevel of the outer sheath member extends diametrically across the outer sheath member and the outer sheath tip is formed with an long distal end that extends further than a diametrically opposed short distal end and the long distal end includes an arc length. ### Claim 2 (depends on 1) The sheath according to claim 1, wherein the conical surface of the inner sheath member vanes between the long distal end which has a first cone angle relative to a longitudinal axis of the inner sheath member and the short distal end which has a second cone angle relative to the longitudinal axis of the inner sheath member, and the first cone angle is less than the second cone angle, and the conical surface of the outer sheath member varies between the long distal end which has a first cone angle relative to a longitudinal axis of the outer sheath member and the short distal end which has a second cone angle relative to the longitudinal axis of the outer sheath member, and the first cone angle is less than the second cone angle. ### Claim 3 (depends on 1) A sheath accord to claim 1, wherein the primary bevel of the outer sheath member is formed at an angle of approximately 19.855° to approximately 28.443° relative to a longitudinal axis of the outer sheath member, and the primary bevel of the inner sheath member is formed at an angle of approximately 19.855° to approximately 28.443° relative to a longitudinal axis of the inner sheath member. ### Claim 4 (depends on 3) A sheath accord to claim 3, wherein the conical surface of the outer sheath member varies between the long distal end which has a cone angle of approximately 5.29° relative to a longitudinal axis of the outer sheath member and the short distal end which has a cone angle of approximately 19.855° to approximately 28.443° relative to the longitudinal axis of the outer sheath member, and the conical surface of the inner sheath member varies between the long distal end which has a cone angle of approximately 5.29° relative to a longitudinal axis of the inner sheath member and the short distal end which has a cone angle of approximately 19.855° to approximately 28.443° relative to the longitudinal axis of the inner sheath member. ### Claim 5 (depends on 1) A sheath accord to claim 1, wherein the primary bevel of the outer sheath member is formed at an angle of approximately 19.855° to approximately 28.443° relative to a longitudinal axis of the outer sheath member, and the primary bevel of the inner sheath member is formed at an angle of approximately 19.855° to approximately 28.443° relative to a longitudinal axis of the inner sheath member. ### Claim 6 (depends on 1) A sheath accord to claim 1, wherein the conical surface of the outer sheath member varies between a cone angle of approximately 5.29° relative to a longitudinal axis of the outer sheath member and a cone angle of approximately 19.855° to approximately 28.443° relative to the longitudinal axis of the outer sheath member, and the conical surface of the inner sheath member vanes between a cone angle of approximately 5.29° relative to a longitudinal axis of the inner sheath member and a cone angle of approximately 19.855° to approximately 28.443° relative to the longitudinal axis of the inner sheath member. ### Claim 7 (depends on 1) A sheath accord to claim 1, wherein the sheath is composed of a plastic material. ### Claim 8 (depends on 1) A sheath accord to claim 1, wherein the inner sheath member is shaped and dimensioned to fit about a guidewire in a manner permitting relative movement. ### Claim 9 (depends on 1) A sheath according to claim 1, wherein the conical surface of the inner sheath member has a minimum cone angle of between approximately 4° and approximately 60°, the conical surface of the outer sheath member has a minimum cone angle of between approximately 4° and approximately 60°, the primary bevel of the inner sheath member is formed at an angle of between approximately 30° and approximately 60°, and the primary bevel of the outer sheath member is formed at an angle of between approximately 30° and approximately 60° is between. ### Claim 10 (depends on 1) A sheath according to claim 1, wherein the conical surface of the inner sheath member has a minimum cone angle which differs from a minimum cone angle of the conical surface of the outer sheath member, and the primary bevel of the inner sheath member is formed at an angle which differs from an angle of the primary bevel of the outer sheath member.