# US 2023/0058024 A1 · Medical implant delivery system and related methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0058024 A1 - Document ID: US20230058024A1 - Status: Published application - Kind: A1 - Application number: 17/974,886 - Filed: 2022-10-27 - Published: 2023-02-23 - Earliest claimed: 2015-05-06 - Assignees: Rotation Medical, Inc. - Applicants: Rotation Medical, Inc. - Inventors: Nathaniel Zenz-Olson; Nathaniel Tran - Web page: https://patentgrep.com/patent/US20230058024A1 ## CPC - A61B 17/56: Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor - A61B 17/3468: {for implanting or removing devices, e.g. prostheses, implants, seeds, wires (devices for implanting seeds A61M37/0069)} - A61F 2/0805: {Implements for inserting tendons or ligaments} - A61B 17/0218: {for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 2017/00473: {Distal part, e.g. tip or head (A61B2017/00464 takes precedence)} - A61B 2017/3454: {Details of tips} - A61B 2017/564: {Methods for bone or joint treatment} - A61F 2/0063: {Implantable repair or support meshes, e.g. hernia meshes} - A61F 2002/0072: {Delivery tools therefor} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - 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 An implant delivery device for introducing and positioning implants within patients may include a sheath member having a distal end, a proximal end, and a central longitudinal axis, the sheath member defining a lumen along the central longitudinal axis. The implant delivery device may additionally include an implant delivery shaft having a distal end and a proximal end, the implant delivery shaft disposed at least partially within the sheath member and an implant spreader assembly disposed at the distal end of the implant delivery shaft. In some embodiments, the implant delivery device may further include a cap disposed at the distal end of the sheath member, the cap obstructing at least a portion of an opening into the lumen of the sheath member. ## Claims ### Claim 1 An implant delivery system comprising: a sheath member having a lumen therein; an implant delivery shaft having a distal end region disposed within the sheath member such that the implant delivery shaft is longitudinally moveable relative to the sheath member; an implant spreader assembly attached to the distal end region of the implant delivery shaft, a sheet-like implant attached to the implant spreader assembly; and a plurality of petals arranged around a distal end of the sheath member; wherein the implant delivery shaft is longitudinally moveable relative to the sheath member to advance the implant spreader assembly and the sheet-like implant attached thereto out of the lumen of the sheath member; wherein the plurality of petals are radially deflectable in a radially outward direction from a first configuration to a second expanded configuration as the implant spreader assembly and the sheet-like implant are passed out of the lumen distal of the plurality of petals. ### Claim 2 (depends on 1) The implant delivery system of claim 1, wherein the cap comprises an even number of petals. ### Claim 3 (depends on 1) The implant delivery system of claim 1, wherein each of the plurality of petals is disposed opposite another of the plurality of petals. ### Claim 4 (depends on 1) The implant delivery system of claim 1, wherein the plurality of petals are configured to collapse together when inserted into tissue. ### Claim 5 (depends on 4) The implant delivery system of claim 4, wherein, when collapsed together, the plurality of petals form a plug and prevent tissue from entering the lumen of the sheath member as the implant delivery system is advanced into the tissue. ### Claim 6 (depends on 1) The implant delivery assembly of claim 1, wherein the plurality of petals are biased toward a central longitudinal axis of the implant delivery shaft in the first configuration and are deflected radially outward in the second configuration. ### Claim 7 (depends on 6) The implant delivery system of claim 6, wherein the plurality of petals define an opening at a distal end thereof when the plurality of petals are in the first configuration. ### Claim 8 (depends on 7) The implant delivery system of claim 7, wherein each of the plurality of petals curves inward toward the central longitudinal axis in a distal direction. ### Claim 9 (depends on 8) The implant delivery system of claim 8, wherein each of the plurality of petals tapers in the distal direction. ### Claim 10 (depends on 1) The implant delivery system of claim 1, wherein a gap is present between adjacent ones of the plurality of petals in the first configuration. ### Claim 11 (depends on 1) The implant delivery system of claim 1, wherein the implant spreader assembly includes four separate arms, wherein the four arms are elastically deformed to be retained within the lumen. ### Claim 12 (depends on 11) The implant delivery system of claim 11, wherein first and second arms of the four arms are longitudinally spaced apart from third and fourth arms of the four arms. ### Claim 13 (depends on 1) The implant delivery system of claim 1, wherein the sheath member includes a plurality of holes extending through a sidewall thereof. ### Claim 14 A method for delivering a sheet-like implant to a tendon at a target site, the method comprising: positioning an implant delivery system proximate an incision in a patient, the implant delivery system comprising: a sheath member having a lumen therein, an implant delivery shaft having a distal end region disposed within the sheath member such that the implant delivery shaft is longitudinally moveable relative to the sheath member, an implant spreader assembly attached to the distal end region of the implant delivery shaft, a sheet-like implant attached to the implant spreader assembly in a folded configuration within the lumen of the sheath member, and a plurality of petals arranged around a distal end of the sheath member, wherein the plurality of petals are radially deflectable in a radially outward direction from a first configuration to a second expanded configuration; inserting the implant delivery system into the incision; advancing the implant delivery system to the tendon; and deploying the sheet-like implant from the lumen of the sheath member by withdrawing the sheath member relative to the implant delivery shaft, wherein the movement of the sheet-like implant past the plurality of petals causes the plurality of petals to deflect radially outward to the second configuration as the implant spreader assembly and the sheet-like implant are passed out of the lumen distal of the plurality of petals, and wherein, deploying the sheet-like implant includes unfolding the sheet-like implant with the implant spreader from the folded configuration to an unfolded configuration overlaying the tendon. ### Claim 15 (depends on 14) The method of claim 14, wherein the plurality of petals are configured to collapse together when inserted into the incision. ### Claim 16 (depends on 15) The method of claim 15, wherein, when collapsed together, the plurality of petals form a plug and prevent tissue from entering the lumen of the sheath member as the implant delivery system is advanced into the incision. ### Claim 17 (depends on 14) The method of claim 14, wherein the plurality of petals are biased toward a central longitudinal axis of the implant delivery shaft in the first configuration and are deflected radially outward in the second configuration. ### Claim 18 (depends on 17) The method of claim 17, wherein the plurality of petals define an opening at a distal end thereof when the plurality of petals are in the first configuration. ### Claim 19 (depends on 18) The method of claim 18, wherein each of the plurality of petals curves inward toward the central longitudinal axis in a distal direction. ### Claim 20 (depends on 19) The method of claim 19, wherein each of the plurality of petals tapers in the distal direction.