# US 12,004,950 B2 · Medical device delivery system and methods of delivering medical devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,950 B2 - Document ID: US12004950B2 - Status: Granted - Kind: B2 - Application number: 17/232,421 - Filed: 2021-04-16 - Published: 2021-07-29 - Granted: 2024-06-11 - Earliest claimed: 2012-11-09 - Assignees: Medtronic Cv Luxembourg S.A.R.L. - Applicants: Medtronic CV Luxembourg S.a.r.l. - Inventors: John Gallagher; Niall Duffy; Declan Costello; Oisin Cooney - Web page: https://patentgrep.com/patent/US12004950B2 ## CPC - A61F 2/2427: {Devices for manipulating or deploying heart valves during implantation} - A61F 2/2433: {using balloon catheter} - A61F 2/2436: {Deployment by retracting a sheath} - A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts - A61F 2/2418: {Scaffolds therefor, e.g. support stents} - A61F 2002/9505: {having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument} - A61F 2002/9534: {for repositioning of stents} - A61F 2002/9583: {Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve} - A61F 2002/9665: {with additional retaining means} - A61F 2230/0095: Saddle-shaped - A61F 2230/0097: Harpoon-shaped - A61F 2250/0003: having an inflatable pocket filled with fluid, e.g. liquid or gas - 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 In some embodiments, a medical device delivery system includes a catheter and a retainer. The retainer can be engaged with the medical device to restrain relative movement of the medical device in one or more axial and/or radial directions. A variety of retainers and retainer systems are disclosed, many of which can reliably disengage the medical device from the retainer. Methods for using the medical device delivery system are also described. ## Claims ### Claim 1 A medical device delivery system comprising: a catheter sheath having a lumen; and a retainer disposed within the lumen, the retainer configured to restrain a medical device, wherein the retainer comprises a toggle, wherein the catheter sheath and the retainer are configured such that relative axial movement between the catheter sheath and the retainer actuates the toggle such that the toggle bumps the medical device from the retainer. ### Claim 2 (depends on 1) The medical device delivery system of claim 1, wherein the catheter sheath includes a sheath protrusion extending from an inner surface thereof, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the sheath protrusion to engage the toggle to bump the medical device from the retainer. ### Claim 3 (depends on 2) The medical device delivery system of claim 2, wherein the toggle is generally U-shaped and includes a hinge coupling the toggle to a base of the retainer. ### Claim 4 (depends on 3) The medical device delivery system of claim 3, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the sheath protrusion to engage a first end of the toggle, thereby causing the first end of the toggle to move in a first direction and a second end of the toggle to move in a second direction opposite the first direction. ### Claim 5 (depends on 4) The medical device delivery system of claim 4, wherein the first direction is generally radially inward and the second direction is generally radially outward. ### Claim 6 (depends on 4) The medical device delivery system of claim 4, wherein the retainer further comprises a retainer protrusion configured to retain the medical device. ### Claim 7 (depends on 6) The medical device delivery system of claim 6, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the second end of the toggle to bump the medical device off of the retainer protrusion. ### Claim 8 (depends on 7) The medical device delivery system of claim 7, wherein the sheath protrusion includes a first angled surface and/or the retainer protrusion includes a second angled surface. ### Claim 9 A medical device delivery system comprising: a catheter sheath having a lumen; and a retainer disposed within the lumen, the retainer configured to restrain a medical device, the retainer including an actuator having a first end, a second end, and a hinge disposed between the first end and the second end and coupling the actuator to a base of the retainer, wherein the catheter sheath and the retainer are configured such that relative axial movement between the catheter sheath and the retainer activates the actuator to move the first end radially inward and the second end radially outward to disengage the medical device from the retainer. ### Claim 10 (depends on 9) The medical device delivery system of claim 9, wherein the catheter sheath includes a sheath protrusion extending from an inner surface thereof, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the sheath protrusion to engage the first end of the actuator to disengage the medical device from the retainer. ### Claim 11 (depends on 9) The medical device delivery system of claim 9, wherein the retainer further comprises a retainer protrusion configured to retain the medical device. ### Claim 12 (depends on 11) The medical device delivery system of claim 11, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the actuator to bump the medical device off of the retainer protrusion. ### Claim 13 (depends on 12) The medical device delivery system of claim 12, wherein the catheter sheath includes a sheath protrusion extending from an inner surface thereof, wherein the catheter sheath and the retainer are configured such that relative axial movement of the catheter sheath and the retainer causes the sheath protrusion to engage the actuator to bump the medical device off of the retainer protrusion. ### Claim 14 (depends on 13) The medical device delivery system of claim 13, wherein the actuator comprises a generally U-shaped toggle.