# US 2017/0281379 A1 · Mechanically assisted stent delivery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0281379 A1 - Document ID: US20170281379A1 - Status: Published application - Kind: A1 - Application number: 15/472,990 - Filed: 2017-03-29 - Published: 2017-10-05 - Earliest claimed: 2016-03-29 - Assignees: Veniti, Inc. - Applicants: Veniti, Inc. - Inventors: Dan LAGOE; Stephen KAO; Abha CHINUBHAI; Daniel RECINELLA; Jeff ELKINS; Trudy NGUYEN - Web page: https://patentgrep.com/patent/US20170281379A1 ## CPC - A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts - A61F 2/966: with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod - A61F 2/82: Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents (stent-grafts for tubular structures of the body other than blood vessels A61F2/04; stent-grafts for blood vessels A61F2/07) - A61F 2/9517: {handle assemblies therefor} - A61F 2002/9505: {having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument} - A61F 2210/00: Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof - 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 A mechanical assisted delivery system and method are provided. One mechanical assisted delivery system includes an outer screw housing, a screw configured to rotate within the outer screw housing, an engagement mechanism configured for selective engagement with the screw, an outer shaft coupled to an end of the outer screw housing, a midshaft extending through the screw and a hub coupled to an end of the midshaft. Translational movement and rotational movement of the hub is configured to deploy a stent located within the outer shaft ## Claims ### Claim 1 A mechanical assisted delivery system comprising: an outer screw housing; a screw configured to rotate within the outer screw housing; an engagement mechanism configured for engagement with the screw; an outer shaft coupled to an end of the outer screw housing; a midshaft extending through the screw; and a hub coupled to an end of the midshaft, wherein, translational movement and rotational movement of the hub is configured to deploy a stent located within the outer shaft. ### Claim 2 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a key and a slotted keyway, wherein the slotted keyway is coupled to the midshaft, wherein in a disengaged state, the slotted keyway slides along an inner diameter of the screw. ### Claim 3 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a pin coupled to the screw. ### Claim 4 (depends on 3) The mechanical assisted delivery system of claim 3, wherein the screw is wound around the midshaft. ### Claim 5 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the midshaft comprises at least one of metal hypotubing or high compression strength plastic tubing. ### Claim 6 (depends on 1) The mechanical assisted delivery system of claim 1, wherein a pitch of the screw defined by the outer screw housing and the screw is between 1 revolution per inch to 8 revolutions per inch. ### Claim 7 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the outer screw housing and the screw are configured to move rotationally relative to each other when turned. ### Claim 8 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the outer screw housing and the screw are configured to engage, stay fixed relative to each other, and move together as a unit when pushed or pulled. ### Claim 9 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a key and a slotted keyway and the midshaft with slotted keyway and screw are configured to move slidably and translationally relative to each other. ### Claim 10 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a key and a slotted keyway and the midshaft with slotted keyway and inner screw are configured to engage, stay fixed relative to each other, and rotate together as a unit when turned. ### Claim 11 (depends on 1) The mechanical assisted delivery system of claim 1, wherein rotation of the outer screw housing relative to the screw deploys the stent. ### Claim 12 (depends on 1) The mechanical assisted delivery system of claim 1, wherein translation of the midshaft relative to the outer screw housing with outer shaft deploys the stent. ### Claim 13 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a pin coupled to screw and the outer screw housing and the screw are configured to move rotationally and translationally relative to each other. ### Claim 14 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism comprises a pin coupled to the screw and the midshaft and screw are configured to engage, stay fixed relative to each other, and rotate together as a unit when turned. ### Claim 15 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism is configured for selective engagement. ### Claim 16 (depends on 1) The mechanical assisted delivery system of claim 1, wherein the engagement mechanism is configured for permanent engagement. ### Claim 17 A mechanical assisted delivery system comprising: an engagement mechanism having a screw and configured for engagement with a shaft, the shaft extending through the screw; and a hub coupled to an end of the shaft and configured to rotate, wherein rotational movement of the hub is configured to deploy a stent located at an end of the shaft. ### Claim 18 (depends on 17) The mechanical assisted delivery system of claim 17, wherein the hub is configured to translate. ### Claim 19 (depends on 18) The mechanical assisted delivery system of claim 18, wherein the hub is configured to rotate during initial deployment of the stent and configured to translate after the initial deployment. ### Claim 20 A method of deploying a stent, the method comprising: deploying a stent using a screw type deployment mechanism actuated and caused to move rotationally or translationally by movement of a hub coupled to a shaft that extends within the screw type deployment mechanism.