# US 2014/0194972 A1 · Catheter > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0194972 A1 - Document ID: US20140194972A1 - Status: Published application - Kind: A1 - Application number: 14/223,620 - Filed: 2014-03-24 - Published: 2014-07-10 - Earliest claimed: 2005-03-30 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: MICHAEL D. GERDTS; KAREN LARSON - Web page: https://patentgrep.com/patent/US20140194972A1 ## 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 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 Catheters, as well as related systems and methods are disclosed. ## Claims ### Claim 1 A medical device, comprising: an inner tubular member having a first region with a first outer diameter and a second region distal of the first region with a second outer diameter that is smaller than the first outer diameter; a floating bumper disposed along the second region of the inner tubular member, the floating bumper having an inner diameter that is smaller than the first outer diameter and that is larger than the second outer diameter; an expandable implant disposed along the inner tubular member and disposed distally of the floating bumper; and a sheath disposed over the inner tubular member. ### Claim 2 (depends on 1) The medical device of claim 1, wherein the floating bumper is capable of translating along the first region. ### Claim 3 (depends on 1) The medical device of claim 1, wherein the floating bumper is capable of tilting relative to the inner tubular member. ### Claim 4 (depends on 1) The medical device of claim 1, wherein the floating bumper is capable of rotating relative to the inner tubular member. ### Claim 5 (depends on 1) The medical device of claim 1, wherein the inner diameter of the floating bumper is constant. ### Claim 6 (depends on 1) The medical device of claim 1, wherein the inner diameter of the floating bumper varies along the length thereof. ### Claim 7 (depends on 1) The medical device of claim 1, wherein a tip member is coupled to the first region of the inner tubular member. ### Claim 8 (depends on 7) The medical device of claim 7, wherein the tip member has a proximal shoulder and a proximal ledge extending proximally from the proximal shoulder. ### Claim 9 (depends on 8) The medical device of claim 8, wherein the sheath is capable of extending along the proximal ledge and abutting the proximal shoulder. ### Claim 10 (depends on 1) The medical device of claim 1, wherein the expandable implant includes a self-expanding stent. ### Claim 11 (depends on 1) The medical device of claim 1, wherein the sheath have a first section having a first inner diameter and a second section having a second inner diameter greater than the first inner diameter. ### Claim 12 (depends on 11) The medical device of claim 11, wherein the second section of the sheath is disposed adjacent to the second region of the inner tubular member. ### Claim 13 A self-expanding stent delivery system, comprising: an inner tubular member having a first region with a first outer diameter and a second region distal of the first region with a second outer diameter that is smaller than the first outer diameter; a floating bumper disposed along the second region of the inner tubular member, the floating bumper having an inner diameter that is smaller than the first outer diameter and that is larger than the second outer diameter; a self-expanding stent disposed along the inner tubular member and disposed distally of the floating bumper; a sheath disposed over the inner tubular member; and wherein the sheath is capable of shifting between a delivery configuration where the sheath extends over the self-expanding stent and a deployment configuration where the sheath is disposed proximally of the self-expanding stent. ### Claim 14 (depends on 13) The self-expanding stent delivery system of claim 13, wherein the floating bumper is capable of translating along the first region. ### Claim 15 (depends on 13) The self-expanding stent delivery system of claim 13, wherein the floating bumper is capable of tilting relative to the inner tubular member. ### Claim 16 (depends on 13) The self-expanding stent delivery system of claim 13, wherein the floating bumper is capable of rotating relative to the inner tubular member. ### Claim 17 (depends on 13) The self-expanding stent delivery system of claim 13, wherein a tip member is coupled to the first region of the inner tubular member. ### Claim 18 (depends on 17) The self-expanding stent delivery system of claim 17, wherein the tip member has a proximal shoulder and a proximal ledge extending proximally from the proximal shoulder, and wherein the sheath is capable of extending along the proximal ledge and abutting the proximal shoulder when the sheath is in the delivery configuration. ### Claim 19 (depends on 13) The self-expanding stent delivery system of claim 13, wherein the sheath have a first section having a first inner diameter and a second section having a second inner diameter greater than the first inner diameter, and wherein the second section of the sheath is disposed adjacent to the second region of the inner tubular member. ### Claim 20 A self-expanding stent delivery system, comprising: an inner tubular member having a first region with a first outer diameter and a second region distal of the first region with a second outer diameter that is smaller than the first outer diameter; a floating bumper disposed along the second region of the inner tubular member, the floating bumper having an inner diameter that is smaller than the first outer diameter and that is larger than the second outer diameter; a self-expanding stent disposed along the inner tubular member and disposed distally of the floating bumper; a deployment sheath slidably disposed along the inner tubular member; wherein the deployment sheath is capable of shifting between a delivery configuration where the deployment sheath extends over the self-expanding stent and a deployment configuration where the deployment sheath is disposed proximally of the self-expanding stent; wherein the deployment sheath have a first section having a first inner diameter and a second section having a second inner diameter greater than the first inner diameter; and wherein the second section of the deployment sheath is disposed adjacent to the second region of the inner tubular member.