# US 2013/0158433 A1 · Medical insertion device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0158433 A1 - Document ID: US20130158433A1 - Status: Published application - Kind: A1 - Application number: 13/611,316 - Filed: 2012-09-12 - Published: 2013-06-20 - Earliest claimed: 2011-09-14 - Assignees: Cook Medical Technologies LLC - Inventors: Troy W. Wingler; Neal E. Bridgett; Rebecca L. Walendzak; Mahfuza Ahmed; Darryl J. Collins; Shawn L. Nichols - Web page: https://patentgrep.com/patent/US20130158433A1 ## CPC - A61B 1/32: Devices for opening or enlarging the visual field, e.g. of a tube of the body - A61M 25/09041: {Mechanisms for insertion of guide wires} - A61M 2025/09116: {Design of handles or shafts or gripping surfaces thereof for manipulating 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 medical device is provided. The device includes a generally elongate member with distal and proximal end portions and a longitudinal axis and a lumen disposed therethrough, wherein the lumen is configured to allow the passage of a wireguide therethrough. The proximal end portion defines a trough for accepting a tip of the wireguide and urging the tip into the lumen from a varying angle of attack with respect to the longitudinal axis. The trough is defined from an open proximal end that provides communication with the lumen. The trough includes a proximal end face with an arcuate first edge that traverses only a portion of a total circumference of the elongate member. The proximal end face transitions to a second face disposed distally of the proximal end face. The second face defines a second edge that traverses another portion of the total circumference of the elongate member. ## Claims ### Claim 1 A medical device comprising: a generally elongate member with a distal end portion and a proximal end portion with a longitudinal axis and a lumen disposed therethrough, wherein the lumen is configured to allow the passage of a wireguide therethrough; the proximal end portion of the elongate member comprises a proximal end face, the proximal end face has an arcuate first edge, the first edge circumscribes only a portion of a total circumference of the elongate member, the proximal end face transitions to a second face that is disposed distally of the proximal end face, the second face defining an arcuate second edge that circumscribes another portion of the total circumference of the elongate member. ### Claim 2 (depends on 1) The medical device of claim 1, wherein the first edge transitions continuously with the second edge. ### Claim 3 (depends on 1) The medical device of claim 1 wherein the proximal end face transitions continuously with the second face. ### Claim 4 (depends on 1) The medical device of claim 1, where the combined first edge and the second edge circumscribe less than the total circumference of the elongate member. ### Claim 5 (depends on 4) The medical device of claim 4, further comprising a planar first transition face defining a first transition edge that circumscribes a portion of the total circumference of the elongate member and is disposed between a first end of the first edge and a first end of the second edge. ### Claim 6 (depends on 4) The medical device of claim 4, wherein a portion of the first transition face edge is substantially parallel to the longitudinal axis. ### Claim 7 (depends on 5) The medical device of claim 5, wherein the proximal end face is substantially perpendicular to the longitudinal axis and the second face is disposed at an acute angle with respect to the longitudinal axis. ### Claim 8 (depends on 5) The medical device of claim 5, further comprising a second transition face defining a second transition edge that circumscribes a remaining portion of the total circumference of the elongate member and is disposed between a second end of the first edge opposite from the first end and a second end of the second edge opposite the first end, wherein the combined first edge, second edge, first transition edge, and second transition edge circumscribe the total circumference of the elongate member. ### Claim 9 (depends on 8) The medical device of claim 8, wherein the first edge, the first transition edge, the second edge, and the second transition edge extend between each other in a continuous manner. ### Claim 10 (depends on 8) The medical device of claim 8, wherein the proximal end face, the first transition face, the second face, and the second transition face establish a continuous end surface of the proximal end portion of the elongate member. ### Claim 11 (depends on 1) The medical device of claim 1, wherein a radius of the first edge is substantially the same as a radius of the second edge. ### Claim 12 (depends on 1) The medical device of claim 1, where the proximal end face is bounded by a substantially straight edge and the first edge. ### Claim 13 (depends on 1) The medical device of claim 1, wherein an outer surface of the elongate member comprises a plurality of ridges disposed distally from the second edge. ### Claim 14 (depends on 1) The medical device of claim 1, wherein the lumen comprises an annulus with a smaller inner diameter than an inner diameter of a portion of the lumen proximate the second edge. ### Claim 15 (depends on 1) The medical device of claim 1, wherein the lumen comprises a proximal portion at a substantially constant first diameter, and a distal portion with an continuously decreasing inner diameter. ### Claim 16 (depends on 13) The medical device of claim 13, wherein the lumen comprises a proximal portion at a substantially constant first diameter, and a distal portion with an continuously decreasing inner diameter, wherein a discontinuity between the proximal and distal portions of the lumen is disposed within a section of the elongate member defining the plurality of ridges. ### Claim 17 A medical device comprising: a generally elongate member with a distal end portion and a proximal end portion with a longitudinal axis and a lumen disposed therethrough, wherein the lumen is configured to allow the passage of a wireguide therethrough; wherein the proximal end portion defines a trough for accepting a tip of the wireguide and urging the tip into the lumen from a varying angle of attack with respect to the longitudinal axis, the trough is defined from an open proximal end providing communication with the lumen including a proximal end face with an arcuate first edge, the first edge circumscribes only a portion of a total circumference of the elongate member, the proximal end face transitions to a second face that is disposed distally of the proximal end face, the second face defining a second edge that circumscribes another portion of the total circumference of the elongate member. ### Claim 18 (depends on 18) The medical device of claim 18, further comprising a first transition face disposed between respective first ends of the proximal end face and the second face, and a second transition face disposed between respective second ends opposite from the respective first ends of the proximal end face and the second face. ### Claim 19 (depends on 18) The medical device of claim 18, wherein the first and second transition faces define first and second transition edges, respectively, wherein the first edge, the first transition edge, the second edge, and the second transition edge extend between each other in a continuous manner. ### Claim 20 (depends on 17) The medical device of claim 17, wherein the first edge extends between about an arc length within about 30 degrees and about 90 degrees and the second edge extends about an arc length within about 30 degrees and about 90 degrees.