# US 11,298,451 B2 · Hemodialysis catheter sleeve > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,451 B2 - Document ID: US11298451B2 - Status: Granted - Kind: B2 - Application number: 16/685,642 - Filed: 2019-11-15 - Published: 2020-06-18 - Granted: 2022-04-12 - Earliest claimed: 2015-09-15 - Assignees: SurModics, Inc. - Applicants: Surmodics, Inc. - Inventors: Joram Slager; Joe McGonigle; Anh Tri La; David E. Babcock; Bruce Jelle; Aleksey Kurdyumov; Timothy M. Kloke; Charlie Olson; Gary Maharaj; Nathan Lockwood - Web page: https://patentgrep.com/patent/US11298451B2 ## CPC - A61M 1/3661: {for haemodialysis} - A61B 17/3415: {for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters (A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06)} - A61M 1/3659: {Cannulae pertaining to extracorporeal circulation} - A61M 25/0017: {specially adapted for long-term hygiene care, e.g. urethral or indwelling catheters to prevent infections} - A61M 25/0097: {characterised by the hub (tube connectors or tube couplings A61M39/10)} - 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 39/0247: {Transcutaneous or percutaneous access sites to the inside of the body} - A61M 2025/0681: {Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube} - A61M 2039/0258: {for vascular access, e.g. blood stream access} - A61M 2039/027: {having a particular valve, seal or septum} - A61M 2039/0273: {for introducing catheters into the body} - A61M 2205/0238: the material being a coating or protective layer - A61M 2210/125: Heart - 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 hemodialysis vascular access device includes a proximal end sized and shaped to sealably couple to a hemodialysis catheter, a movable structure coupled to the proximal end, a fixation structure coupled to the movable region and sized and shaped for fixation on a patient, an elongated sleeve coupled to the fixation structure and sized and shaped for insertion into a patient's vasculature, and a valve at a distal end of the internal lumen. When a hemodialysis catheter is inserted into the device and coupled to the proximal end, distal movement of the proximal end relative to the fixation structure biases a distal end of the hemodialysis catheter from a position inside the elongated sleeve through a valve out of the device and into the patient's blood. ## Claims ### Claim 1 A vascular access device comprising: a proximal orifice; a distal orifice; and an elongated catheter body defining a proximal portion defining a proximal end and a proximal lumen in communication with the proximal orifice; a distal portion defining a distal end and a distal lumen in communication with the distal orifice; the proximal lumen and distal lumen configured to receive a catheter through the proximal orifice and extending at least partially through the proximal lumen and distal lumen; the proximal end configured to be connected to the catheter; the proximal portion comprising a compressible section to allow the proximal orifice to be axially displaceable toward the distal portion from a first position to a second position, causing a distal end of the catheter to extend beyond the distal orifice when the proximal orifice is in the second position; and wherein the compressible section includes a balloon sized and shaped to at least partially inflate when the proximal orifice is displaced toward the distal portion. ### Claim 2 (depends on 1) The vascular access device of claim 1, the compressible section comprising an air permeable membrane. ### Claim 3 (depends on 2) The vascular access device of claim 2, wherein the air permeable membrane permits air movement out of the device as the proximal orifice moves from the first position to the second position. ### Claim 4 (depends on 2) The vascular access device of claim 2, wherein the air permeable membrane permits air movement into the device as the proximal orifice moves from the second position to the first position. ### Claim 5 (depends on 1) The vascular access device of claim 1, the compressible section comprising an antimicrobial membrane. ### Claim 6 (depends on 1) The vascular access device of claim 1, the compressible section comprising a protective cover. ### Claim 7 (depends on 6) The vascular access device of claim 6, the protective cover configured to be removed to allow the proximal orifice to move from the first position to the second position. ### Claim 8 (depends on 1) The vascular access device of claim 1, the compressible section comprising a spring. ### Claim 9 (depends on 1) The vascular access device of claim 1, the compressible section comprising a pleated material. ### Claim 10 (depends on 1) The vascular access device of claim 1, further comprising a valve proximate the distal orifice, the valve configured to allow passage of the catheter through the valve such that the catheter may extend through the valve and out of the distal orifice, the valve further configured to prevent the flow of blood into the distal lumen when the catheter is not extended through the valve. ### Claim 11 (depends on 10) The vascular access device of claim 10, the valve proximate the distal orifice comprising a plurality of leaflets. ### Claim 12 (depends on 10) The vascular access device of claim 10, the valve comprising a dome shape. ### Claim 13 (depends on 10) The vascular access device of claim 10, the valve covered with a coating comprising a lubricious coating. ### Claim 14 (depends on 1) The vascular access device of claim 1, further comprising a cap, the proximal end configured to be connected to the catheter via the cap. ### Claim 15 A vascular access device comprising: a proximal orifice; a distal orifice; and an elongated catheter body defining a proximal portion defining a proximal end and a proximal lumen in communication with the proximal orifice; a distal portion defining a distal end and a distal lumen in communication with the distal orifice; the proximal lumen and distal lumen configured to receive a catheter through the proximal orifice and extending at least partially through the proximal lumen and distal lumen; the proximal end configured to be connected to the catheter; the proximal portion comprising a compressible section to allow the proximal orifice to be axially displaceable toward the distal portion from a first position to a second position, causing a distal end of the catheter to extend beyond the distal orifice when the proximal orifice is in the second position; and wherein the compressible section further comprises a tube assembly comprising a tube and a moveable component disposed inside the tube to allow the proximal orifice to move from the first position to the second position. ### Claim 16 (depends on 15) The vascular access device of claim 15, wherein the moveable component slides with respect to the tube. ### Claim 17 (depends on 1) The vascular access device of claim 1, further comprising a surface comprising polytetrafluoroethylene (PTFE) or PTFE liners. ### Claim 18 (depends on 1) The vascular access device of claim 1, further comprising a hydrophilic coated surface. ### Claim 19 (depends on 1) The vascular access device of claim 1, wherein the catheter is a dialysis catheter.