# US 8,540,669 B2 ยท Catheter system providing step reduction for postconditioning > Agents: this data is available as JSON from the patentgrep API and MCP server โ€” see https://patentgrep.com/llms.txt - Number: US 8,540,669 B2 - Document ID: US8540669B2 - Status: Granted - Kind: B2 - Application number: 13/032,733 - Filed: 2011-02-23 - Published: 2011-11-03 - Granted: 2013-09-24 - Earliest claimed: 2010-04-30 - Assignees: Abbott Cardiovascular Systems Inc. - Applicants: Kevin J. Ehrenreich; Jesus Magana - Inventors: Kevin J. Ehrenreich; Jesus Magana - Web page: https://patentgrep.com/patent/US8540669B2 ## CPC - A61M 25/10181: {Means for forcing inflation fluid into the balloon} - A61M 25/0172: {Exchanging a guidewire while keeping the catheter in place} - A61M 25/10: Balloon catheters ({A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02;} inflatable balloons for placing stents or stent-grafts A61F2/958 {; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00}) - A61M 25/1002: {characterised by balloon shape (A61M25/1006, A61M25/1009 take precedence)} - A61M 25/1018: {Balloon inflating or inflation-control devices} - A61M 25/104: {used for angioplasty} - A61M 25/10187: {Indicators for the level of inflation or deflation} - A61M 2025/0183: {Rapid exchange or monorail catheters} - A61M 2025/105: {having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes} - A61M 2025/1077: {having a system for expelling the air out of the balloon before inflation and use} - A61M 2025/1093: {having particular tip characteristics} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} ## Abstract A pre-assembled kit for administering ischemic postconditioning comprising a catheter and a handle having a fluid circuit to control and modulate flow of inflation fluid to and from a balloon wherein the catheter is free from additional assembly and preparation procedures such that it is ready-to-use within a variety of vessel sizes. ## Claims ### Claim 1 A method of administering ischemic postconditioning comprising: providing a catheter, the catheter including at least one expandable member, the catheter configured for use in a variety of vessel sizes, the catheter configured to receive a guidewire of predetermined size; providing a handle having a pressure source positioned entirely within the handle; coupling the pressure source with the catheter, the at least one expandable member disposed in fluid communication with the pressure source, wherein the catheter and handle are free from any required additional assembly and preparation procedures; positioning the at least one expandable member at a predetermined location within a vessel; inflating the at least one expandable member with an inflation fluid via an inflation lumen for a period of time; and deflating the at least one expandable member via an independent deflation lumen. ### Claim 2 (depends on 1) The method of claim 1, wherein a therapeutic agent is delivered simultaneously with postconditioning. ### Claim 3 (depends on 2) The method of claim 2, wherein the catheter is configured to receive a rapid exchange guidewire during delivery of the therapeutic agent. ### Claim 4 (depends on 1) The method of claim 1, wherein the expandable member conforms to the vessel wall at a pressure of about โ…” atm. ### Claim 5 (depends on 1) The method of claim 1, wherein the expandable member is inflated for about 30 seconds. ### Claim 6 (depends on 1) The method of claim 1, wherein the inflation fluid is CO2. ### Claim 7 (depends on 1) The method of claim 1, wherein the inflation of the at least one expandable member is repeated. ### Claim 8 (depends on 1) The method of claim 1, wherein the catheter is configured to receive a rapid exchange guidewire. ### Claim 9 (depends on 1) The method of claim 1, wherein the expandable member is a balloon. ### Claim 10 (depends on 1) The method of claim 1, wherein the expandable member is configured to conform to a lumen wall having a non-circular cross-section. ### Claim 11 A method of administering ischemic postconditioning comprising: providing a catheter, the catheter including at least one expandable member, the catheter configured for use in a variety of vessel sizes, the catheter configured to receive a guidewire of predetermined size; providing a handle having a pressure source positioned entirely within the handle; coupling the pressure source with the catheter, the at least on expandable member disposed in fluid communication with the pressure source; positioning the at least one expandable member at a predetermined location within a vessel; inflating the at least one expandable member with an inflation fluid via an inflation lumen for a period of time; delivering a therapeutic agent to a predetermined location within the vessel; and deflating the at least one expandable member via an independent deflation lumen. ### Claim 12 (depends on 11) The method of claim 11, wherein the catheter is configured as a single-piece device. ### Claim 13 (depends on 11) The method of claim 11, wherein the catheter is configured to receive a rapid exchange guidewire during delivery of the therapeutic agent. ### Claim 14 (depends on 11) The method of claim 11, wherein the expandable member conforms to the vessel wall at a pressure of about โ…” atm. ### Claim 15 (depends on 11) The method of claim 11, wherein the expandable member is inflated for about 30 seconds. ### Claim 16 (depends on 11) The method of claim 11, wherein the inflation fluid is CO2. ### Claim 17 (depends on 11) The method of claim 11, wherein the inflating of the at least one expandable member is repeated. ### Claim 18 (depends on 11) The method of claim 11, wherein the expandable member is a balloon. ### Claim 19 (depends on 11) The method of claim 11, wherein the expandable member is configured to conform to a lumen wall having a non-circular cross-section. ### Claim 20 A pre-assembled kit for administering ischemic postconditioning comprising: a catheter, the catheter having at least one lumen extending therethrough, the catheter having at least one expandable member; and a handle, the handle including a pressure source positioned entirely within the handle and a fluid circuit defining at least an inflation lumen and an independent deflation lumen, the fluid circuit in communication with the at least one expandable member; wherein the catheter system ready-to-use within a variety of vessel sizes. ### Claim 21 (depends on 20) The preassembled kit of claim 20, wherein the catheter and handle are a unitary device. ### Claim 22 (depends on 21) The preassembled kit of claim 21, wherein the pre-assembled kit includes an expandable member that is inflated with one touch. ### Claim 23 (depends on 22) The preassembled kit of claim 22, wherein the expandable member is configured such that no purge is necessary prior to use. ### Claim 24 (depends on 20) The pre-assembled kit of claim 20, wherein the expandable member is a one-size-fits-all balloon. ### Claim 25 (depends on 24) The pre-assembled kit of claim 24, wherein a size of the expandable member need not be chosen by a health care provider using the kit such that the kit is ready to use.