# US 10,945,746 B2 · Tools for sheathing treatment devices and associated systems and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,945,746 B2 - Document ID: US10945746B2 - Status: Granted - Kind: B2 - Application number: 16/007,961 - Filed: 2018-06-13 - Published: 2018-12-13 - Granted: 2021-03-16 - Earliest claimed: 2017-06-12 - Assignees: Covidien LP - Applicants: Covidien LP - Inventors: Evan David Epstein; Joseph Marrocco; David G. Matsuura; Philip J. Simpson; Jeffrey J. Loos; Adam Hattan - Web page: https://patentgrep.com/patent/US10945746B2 ## CPC - A61B 17/221: Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} - A61M 25/0194: {Tunnelling catheters} - A61B 2017/0053: {Loading magazines or sutures into applying tools} - A61B 2017/2215: {having an open distal end} - A61F 2/962: having an outer sleeve - A61M 2025/0034: {characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores} - A61M 2025/0681: {Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube} - 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)} - 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 Devices for loading intravascular treatment devices into a sheath and associated systems and methods are disclosed herein. A sheathing tool may include, for example, a first channel extending to a first opening, the first channel configured to receive a treatment device in a constrained state therethrough. The treatment device may include an elongated member and a first element and a second element at a distal region of the elongated member. The second channel may extend to a second opening, the second opening surrounded by a sidewall and configured to receive the treatment device in the constrained state therethrough, wherein the second opening is spaced apart from the first opening by a gap, and wherein a length of the gap is great enough to allow the first element to self-expand over the sidewall while the second element generally maintains its diameter in the constrained state while crossing the gap. ## Claims ### Claim 1 A system comprising: a treatment device having an elongated member, and a first element and a second element at a distal region of the elongate member; and a device for sheathing the treatment device, the device comprising: a first channel extending to a first opening, the first channel configured to receive the treatment device in a constrained state therethrough; and a second channel extending to a second opening, the second opening surrounded by a sidewall and configured to receive the treatment device in the constrained state therethrough, wherein the second opening is spaced apart from the first opening by a gap, and wherein a length of the gap is great enough to allow the first element to self-expand over the sidewall while the second element generally maintains its diameter in the constrained state while crossing the gap. ### Claim 2 (depends on 1) The system of claim 1, wherein an inner diameter of the second channel tapers distally from the second opening. ### Claim 3 (depends on 1) The system of claim 1, wherein an outer diameter of the sidewall increases distally from the second opening. ### Claim 4 (depends on 1) The system of claim 1, wherein the first and second openings are fixed relative to one another such that the length of the gap is fixed. ### Claim 5 (depends on 1) The system of claim 1, wherein the first and second openings are movable relative to one another such that the length of the gap is adjustable. ### Claim 6 (depends on 1) The system of claim 1, wherein the first channel is within a first housing and the second channel is within a second housing movable relative to the first housing, and wherein the first housing has a detent configured to receive a protrusion of the second housing, or vice versa, such that the first housing is locked in place relative to the second housing. ### Claim 7 (depends on 1) The system of claim 1, wherein the first channel is configured to receive a sheath therethrough, wherein the sheath is configured to slidably receive the treatment device therein in the constrained state. ### Claim 8 (depends on 1) The system of claim 1, wherein the second channel is configured to receive a sheath therethrough, and wherein the sheath is configured to slidably receive the treatment device therein in the constrained state. ### Claim 9 (depends on 1) The system of claim 1, wherein the first element is a self-expanding element. ### Claim 10 (depends on 1) The system of claim 1, wherein the second element is a self-expanding element. ### Claim 11 (depends on 1) The system of claim 1, wherein the first element is a mesh. ### Claim 12 (depends on 1) The system of claim 1, wherein the second element is a stent. ### Claim 13 (depends on 1) The system of claim 1, wherein, in an expanded state, the first element has a flared distal region with a lumen therethrough, and wherein the lumen of the flared distal region is configured to receive the sidewall therein as the treatment device is moved across the gap. ### Claim 14 (depends on 1) The system of claim 1, wherein the treatment device is a clot retrieving device. ### Claim 15 (depends on 1) The system of claim 1, wherein the device is configured to be detachably coupled to a handle of a catheter, thereby placing the second channel in fluid communication with a lumen of the catheter.