# US 11,992,628 B2 · Catheter positioning > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,628 B2 - Document ID: US11992628B2 - Status: Granted - Kind: B2 - Application number: 17/307,734 - Filed: 2021-05-04 - Published: 2021-09-02 - Granted: 2024-05-28 - Earliest claimed: 2014-03-27 - Assignees: Mozarc Medical US LLC - Applicants: Mozarc Medical US LLC - Inventors: Sean McDermott - Web page: https://patentgrep.com/patent/US11992628B2 ## CPC - A61M 25/0108: {using radio-opaque or ultrasound markers} - A61M 25/0043: {characterised by structural features} - A61M 25/007: {Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked} - A61B 2090/3966: {Radiopaque markers visible in an X-ray image} - A61M 1/3661: {for haemodialysis} - A61M 25/0068: {Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure} - A61M 2025/0031: {characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment} - A61M 2025/0057: {Catheters delivering medicament other than through a conventional lumen, e.g. porous walls or hydrogel coatings} - A61M 2025/0073: {Tip designed for influencing the flow or the flow velocity of the fluid, e.g. inserts for twisted or vortex flow} - 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) ## Abstract A medical catheter includes an elongate member and an insert. The elongate member has proximal and distal end portions and defines a longitudinal axis through the proximal and distal end portions. The elongate member includes a wall at least partially defining a longitudinal lumen and defining a side opening extending radially from an outer surface of the wall to the longitudinal lumen. The insert is at least partially disposed within the side opening and at least partially defines an insert passage in fluid communication with the longitudinal lumen. The elongate member includes a first material defining the side opening and the insert includes a second material different from the first material. ## Claims ### Claim 1 A medical catheter comprising: an elongate member defining a longitudinal axis and including a wall, a septum, and a septum extension, the septum disposed within the wall such that the wall and the septum together define a first lumen and a second lumen, the septum extending to the septum extension disposed distal to the first and second lumens, wherein the septum extension comprises a first material; and a second material incorporated into a distal end of the septum extension, the second material being different from the first material, wherein the second material comprises a polymer, and wherein the second material has a Shore A hardness greater than 95 durometer. ### Claim 2 (depends on 1) The medical catheter of claim 1, wherein the second material is more radiopaque than the first material. ### Claim 3 (depends on 1) The medical catheter of claim 1, wherein the second material comprises an anti-thrombogenic agent. ### Claim 4 (depends on 1) The medical catheter of claim 1, wherein the second material comprises an antimicrobial agent. ### Claim 5 (depends on 1) The medical catheter of claim 1, wherein the second material comprises a metal. ### Claim 6 (depends on 1) The medical catheter of claim 1, further comprising a septum extension insert at least partially disposed on the septum extension, the septum extension insert comprising the second material. ### Claim 7 (depends on 6) The medical catheter of claim 6, wherein the septum extension insert comprises at least one of an anti-thrombogenic agent or an antimicrobial agent. ### Claim 8 (depends on 7) The medical catheter of claim 7, wherein the at least one of the antithrombogenic agent or the antimicrobial agent is impregnated in the septum extension insert. ### Claim 9 (depends on 6) The medical catheter of claim 6, wherein the septum extension insert is configured to enclose rough or sharp edges of the septum extension. ### Claim 10 (depends on 6) The medical catheter of claim 6, wherein the septum extension insert defines a radiused blood contacting surface configured to reduce shear stresses on blood entering and exiting the first or second lumen. ### Claim 11 (depends on 6) The medical catheter of claim 6, wherein the septum extension insert defines a channel configured to receive an end face of the septum extension. ### Claim 12 (depends on 1) The medical catheter of claim 1, further comprising a wall insert, wherein a distal portion of the elongate member defines first and second axial openings in fluid communication with the respective first and second lumens, and wherein the wall insert is disposed along at least one of the first or second axial openings, and wherein the wall insert comprises a material different from a material of the distal portion of the elongate member. ### Claim 13 A medical catheter, comprising: an elongate member defining a longitudinal axis and including a wall, a septum, and a septum extension, the septum disposed within the wall such that the wall and the septum together define a first lumen and a second lumen, the septum extending to the septum extension disposed distal to the first and second lumens, wherein the septum extension comprises a first material and a second material, wherein the second material is incorporated into a distal end of the septum extension, and wherein the second material is different from the first material; and a septum extension insert at least partially disposed on the septum extension, the septum extension insert comprising the second material, wherein the septum extension insert comprises at least one of an anti-thrombogenic agent or an antimicrobial agent, and wherein the at least one of the anti-thrombogenic agent or the antimicrobial agent is coated on the second material of the septum extension insert. ### Claim 14 A medical catheter comprising: an elongate member comprising proximal and distal end portions and defining a longitudinal axis extending through the proximal and distal end portions, the elongate member including a wall, a septum, and a septum extension, the septum disposed within the wall such that the wall and the septum together define a first lumen and a second lumen, the septum extending to the septum extension disposed distal to the first and second lumens; and an extension insert secured to a distalmost end of the septum extension, the septum extension comprising a first material and the extension insert comprising a second material different from the first material. ### Claim 15 (depends on 14) The medical catheter of claim 14, wherein the second material is more radiopaque than the first material. ### Claim 16 (depends on 14) The medical catheter of claim 14, wherein the second material comprises at least one of an anti-thrombogenic agent or an antimicrobial agent. ### Claim 17 (depends on 14) The medical catheter of claim 14, wherein the second material comprises a polymer. ### Claim 18 (depends on 14) The medical catheter of claim 14 wherein the septum extension insert defines a radiused blood contacting surface configured to reduce shear stresses on blood entering and exiting the first or second lumen.