# US 10,369,326 B2 · Catheter with a lumen shaped as an identification symbol > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,369,326 B2 - Document ID: US10369326B2 - Status: Granted - Kind: B2 - Application number: 15/372,792 - Filed: 2016-12-08 - Published: 2017-06-15 - Granted: 2019-08-06 - Earliest claimed: 2015-12-09 - Assignees: Medtronic Vascular, Inc. - Applicants: Medtronic Vascular, Inc. - Inventors: John Tuohy; Sean Ward - Web page: https://patentgrep.com/patent/US10369326B2 ## CPC - A61M 25/0023: {by the form of the lumen, e.g. cross-section, variable diameter} - A61B 90/39: {Markers, e.g. radio-opaque or breast lesions markers} - A61B 90/96: using barcodes - A61M 25/0108: {using radio-opaque or ultrasound markers} - A61M 31/005: {for contrast media} - A61B 2090/3933: {Liquid markers} - A61B 2090/3966: {Radiopaque markers visible in an X-ray image} - A61M 25/0009: {Making of catheters or other medical or surgical tubes} - A61M 2025/0034: {characterized by elements which are assembled, connected or fused, e.g. splittable tubes, outer sheaths creating lumina or separate cores} - A61M 2205/32: with radio-opaque indicia - A61M 2205/6072: Bar codes - A61M 2207/00: Methods of manufacture, assembly or production - B29C 59/16: by wave energy or particle radiation {, e.g. infrared heating (B29C59/007 takes precedence)} - B29L 2031/7543: {Balloon catheters} - 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)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract A catheter includes a catheter shaft having a shaft wall and a lumen extending longitudinally within the shaft wall. The lumen is bounded in radially outward and radially inward directions. The lumen includes a feed portion and an identification symbol fluidly connected to the feed portion. The lumen is configured to receive a contrast media. The lumen may be formed by a channel formed in an outer surface of a first shaft of the catheter shaft, and a covering disposed around the outer surface of the first shaft to cover the channel. ## Claims ### Claim 1 A catheter, comprising: a catheter shaft including a shaft wall; and a lumen extending longitudinally within the shaft wall, wherein the lumen is bounded in radially outward and radially inward directions, the lumen including a feed portion and an identification symbol fluidly connected to the feed portion, wherein the lumen is configured to receive a contrast media such that when filled with the contrast media, the identification symbol is machine readable. ### Claim 2 (depends on 1) The catheter of claim 1, wherein the catheter shaft includes a first shaft having an outer surface and a covering disposed around the outer surface of the first shaft, wherein the lumen comprises a channel in the outer surface of the first shaft and the covering covering the channel. ### Claim 3 (depends on 2) The catheter of claim 2, wherein the covering is a polymer film heat shrunk around the first shaft. ### Claim 4 (depends on 2) The catheter of claim 2, wherein the identification symbol comprises a series of linearly interconnected channels having varied widths. ### Claim 5 (depends on 2) The catheter of claim 2, wherein the identification symbol comprises a pattern of ablated and unablated segments of the outer surface of the first shaft. ### Claim 6 (depends on 5) The catheter of claim 5, wherein the pattern is spiral pattern wrapped around the first shaft, wherein the spiral pattern is configured to be viewed as a barcode in two dimensions using fluoroscopy when the lumen of the identification symbol is filled with contrast media. ### Claim 7 (depends on 6) The catheter of claim 6, wherein the lumen varies in width to create the identification symbol. ### Claim 8 (depends on 6) The catheter of claim 6, wherein the identification symbol is symmetrical with respect to a central longitudinal axis of the catheter shaft such that when the identification symbol is filled with the contrast media, the identification symbol is configured to be machine readable with the catheter shaft in any rotational orientation about the central longitudinal axis. ### Claim 9 (depends on 1) The catheter of claim 1, wherein the lumen comprises an air evacuation port. ### Claim 10 (depends on 9) The catheter of claim 9, further comprising an air channel extending from the air evacuation port proximally through the shaft wall of the catheter shaft, wherein the air channel and air evacuation port are fluidly connected. ### Claim 11 (depends on 1) The catheter of claim 1, wherein the identification symbol is configured such that when filled with the contrast media, the identification symbol is configured to be machine readable only when in a predetermined rotational orientation relative to a central longitudinal axis of the catheter. ### Claim 12 (depends on 1) The catheter of claim 1, wherein the identification symbol is asymmetric with respect to a central longitudinal axis of the catheter such that when filled with the contrast media the identification symbol is configured to show a predetermined proper rotational orientation of the catheter relative to the central longitudinal axis.