# US 10,307,278 B2 · Low profile stepped delivery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,307,278 B2 - Document ID: US10307278B2 - Status: Granted - Kind: B2 - Application number: 15/227,280 - Filed: 2016-08-03 - Published: 2016-11-24 - Granted: 2019-06-04 - Earliest claimed: 2012-10-29 - Assignees: Cook Medical Technologies LLC - Applicants: Cook Medical Technologies LLC - Inventors: Jacqueline Farag Eells; Robert M. Eells - Web page: https://patentgrep.com/patent/US10307278B2 ## CPC - A61F 2/966: with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod - A61F 2/95: Instruments specially adapted for placement or removal of stents or stent-grafts - A61F 2/9517: {handle assemblies therefor} - A61F 2/9522: {Means for mounting a stent or stent-graft onto or into a placement instrument} - A61F 2002/9511: {the retaining means being filaments or wires} - A61F 2002/9665: {with additional retaining means} - 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 low profile stepped delivery system for retracting trigger wires from a prosthesis to release the prosthesis from a delivery device. A rod is disposed within an axial bore of a handle. The rod has a first longitudinal surface and a second longitudinal surface. A first engagement mechanism is disposed on the first longitudinal surface and a second engagement mechanism disposed on the second longitudinal surface. A wire coiling assembly is disposed at an end of the of the handle and comprises a first rotary gear that is adapted to be rotated by the first engagement mechanism, a second rotary gear that is adapted to be rotated by the second engagement mechanism, a first wire spool that is coupled to a rotation of the first rotary gear, and a second wire spool that is coupled to the rotation of second rotary gear. The first wire spool is configured to secure a first trigger wire and the second wire spool is configured to secure a second trigger wire. ## Claims ### Claim 1 A delivery handle for use in a endoluminal prosthetic deployment system comprising: a housing; a rod slideably disposed within the housing, the rod comprising: a distal end having an enlarged diameter portion; a proximal end axially opposite the distal end; a first surface disposed between the distal end and the proximal end, the first surface having a first smooth portion disposed proximate the proximal end and a first toothed portion proximate the distal end; and a second surface disposed between the distal end and the proximal end, the second surface having a second smooth portion disposed proximate the distal end and opposite the first toothed portion, and a second toothed portion disposed proximate the proximal end and opposite the second smooth portion; a gear assembly engageable with the rod having a first gear engageable with the first toothed portion, and a second gear engageable with the second toothed portion, and at least one trigger wire engaged with one of the first or second gears of the gear assembly. ### Claim 2 (depends on 1) The rod of claim 1, wherein the first toothed portion and the second toothed portion are equal in length. ### Claim 3 (depends on 1) The rod of claim 1 wherein the second toothed portion is different in length from the first toothed portion. ### Claim 4 (depends on 1) The delivery handle of claim 1, wherein movement of the rod in a first direction engages a gear with one of the toothed portions and retracts the trigger wire in that direction. ### Claim 5 A delivery handle for an endoluminal prosthetic deployment system, the delivery handle comprising: a housing; and a rod slideably disposed within the housing, the rod comprising: a first end; a second end; an upper surface disposed between the first end and the second end, the upper surface having a first portion with a first set of gear teeth and a first smooth portion adjacent the first set of gear teeth; and a lower surface opposite the upper surface and disposed between the first end and the second end, the upper surface having a second smooth portion opposite the first set of gear teeth, and a second set of gear teeth adjacent the second smooth portion and opposite the first set of gear teeth; a gear assembly configured to sequentially engage the first and second sets of gear teeth, wherein the gear assembly comprises a first gear engageable with the first set of gear teeth and a second gear engageable with the second set of gear teeth, wherein a first trigger wire is engaged with the first gear and a second trigger wire is engaged with the second gear. ### Claim 6 (depends on 5) The delivery handle of claim 5, wherein movement of the rod in a first direction retracts the trigger wires in that direction. ### Claim 7 A delivery handle, the delivery handle comprising a housing, and a rod slideably disposed within the housing, the rod comprising: a distal end having an enlarged diameter portion; a proximal end axially opposite the distal end; a first surface disposed between the distal end and the proximal end, the first surface having a first portion disposed proximate the proximal end and having a set of gear teeth and a first smooth portion disposed proximate the distal end; and a second surface disposed between the distal end and the proximal end, the second surface having a second smooth portion disposed proximate the distal end, a third smooth portion disposed proximate the proximal end, and a second portion having a second set of gear teeth disposed between the second smooth portion and the third smooth portion a gear assembly engageable with the rod, the gear assembly comprising a first gear engageable with the first set of gear teeth, and a second gear engageable with the second set of gear teeth, and at least one trigger wire engaged with the gear assembly. ### Claim 8 (depends on 7) The delivery handle of claim 7, wherein movement of the rod in a first direction engages a gear with one of the sets of gear teeth and retracts the trigger wire in that direction.