Advanced electromagnetic motion and tracking peripherally inserted central venous catheter system with extended endovascular applications

{
  "publication_number": "US10737061B2",
  "country": "US",
  "kind": "B2",
  "title": "Advanced electromagnetic motion and tracking peripherally inserted central venous catheter system with extended endovascular applications",
  "abstract": "A method of inserting a catheter and catheter placement apparatus that were designed for improving the safety and efficiency in the placement of a PICC (Peripherally Inserted Central Catheter) implant are described. The invention enables placement of the catheter into the body while the catheter is maintained in a sterile environment.",
  "claims": [
    "1. A method of placing a catheter inside a body, comprising: providing an enclosed tube comprising a guidewire and one or more external magnets that are external to the enclosed tube and coupled to one or more ferromagnetic components within the enclosed tube; the enclosed tube open at one end to provide an entry to the body; wherein the one or more external magnets comprise a first external magnet that is coupled to a first ferromagnetic actuator that moves the guidewire and a second external magnet that is coupled to a second ferromagnetic actuator that moves the catheter; and moving at least one of the external magnets to provide a motive force to move at least a portion of the guidewire from inside the tube to inside the body; and moving a catheter over the guidewire into place within the body; and wherein, during the entire procedure, the one or more ferromagnetic components remain outside the body.",
    "2. The method of claim 1 wherein at least one other external magnet is coupled to one or more ferromagnetic component within the tube that is, in turn, coupled to the catheter that is also within the tube; and the at least one other external magnet is moved to provide a motive force to move at least a portion of the catheter from inside the tube to inside the body.",
    "3. The method of claim 2 wherein the guidewire is withdrawn from the body after the catheter is in place.",
    "4. The method of claim 1 wherein the one or more external magnets provide a magnetic field that translates down the length of the enclosed tube in a proximal direction toward the body, and is are rotatable around a circumference of the tube to provide rotation about a central axis of the guidewire and/or catheter within the tube.",
    "5. The method of claim 4 wherein the enclosed tube has an inner diameter that is 50% greater or less than an outside diameter of the catheter.",
    "6. The method of claim 5 wherein a sterile saline solution is added through a distal end of the tube.",
    "7. The method of claim 4 wherein, at the end of the procedure, a portion of the catheter is cut and a hub is attached to a distal end of the catheter; wherein the hub has a larger diameter than the catheter.",
    "8. The method of claim 7 wherein an exposed end of the catheter has a fitting for attachment to an injection port.",
    "9. The method of claim 8 wherein the catheter has several fittings along its length so that, after placement, the catheter can be cut to a desired length and still be attached to an injection port.",
    "10. The method of claim 1 where an operator manipulates the catheter and guidewire independently using one hand through the use of an integrated handgrip.",
    "11. A catheter placement apparatus, comprising: a sterile enclosed tube comprising: a guidewire, a first ferromagnetic component coupled to the guidewire, and a catheter, all of which are disposed within the sterile enclosed tube; one or more external magnets that are mounted to an exterior of the sterile enclosed tube and coupled to one or more ferromagnetic components within the sterile enclosed tube; and wherein a largest dimension of the enclosed tube is a length direction and wherein the one or more external magnets comprises: a first external magnet that is coupled to the first ferromagnetic component that is coupled to the guidewire and a second external magnet that is coupled to a second ferromagnetic actuator that is coupled to the catheter; and wherein the first external magnet is translatable in the length direction of the enclosed tube.",
    "12. The catheter placement apparatus of claim 11, wherein the enclosed tube is configured to open at at least one end to provide access to a body.",
    "13. The catheter placement apparatus of claim 12 comprising a gauge that measures a resistance encountered by the guidewire.",
    "14. The catheter placement apparatus of claim 13 wherein the gauge comprises a transparent window disposed on a proximal end of the enclosed tube such that the guidewire can be seen through the transparent window.",
    "15. The catheter placement apparatus of claim 12 further comprising a handgrasp disposed at the proximal side of the apparatus that includes controls for moving the guidewire and/or catheter in translation and/or rotation.",
    "16. The catheter placement apparatus of claim 11 comprising a generally planar tube support and mount assembly that holds the enclosed tube to the tube support.",
    "17. The catheter placement apparatus of claim 16 comprising a power source and one or more motion control computers to aid in moving the one or more external magnets.",
    "18. The catheter placement apparatus of claim 11 wherein the first external magnet or the second external magnet comprises a Halbach array of magnets.",
    "19. The catheter placement apparatus of claim 11 wherein the first external magnet or the second external magnet has a magnetic field that is rotatable in a direction around a circumference of the enclosed tube.",
    "20. The catheter placement apparatus of claim 11 wherein the first external magnet and the second external magnet are translatable in a length direction of the enclosed tube.",
    "21. The catheter placement apparatus of claim 11 wherein the first ferromagnetic actuator is integral with the guidewire and wherein the second ferromagnetic actuator is integral with the catheter.",
    "22. A catheter placement apparatus, comprising: a sterile enclosed tube comprising: a guidewire, a first ferromagnetic component coupled to the guidewire, and a catheter, all of which are disposed within the sterile enclosed tube; one or more external magnets that are external to the enclosed tube and coupled to one or more ferromagnetic components within the sterile tube; and wherein a largest dimension of the enclosed tube is a length direction and wherein the one or more external magnets comprises: a first external magnet that is coupled to the first ferromagnetic component that is coupled to the guidewire and wherein the first external magnet is translatable in the length direction of the enclosed tube and a second external magnet that is coupled to a second ferromagnetic actuator that is coupled to the catheter; and further comprising a handgrasp disposed at a proximal side of the apparatus that includes controls for moving the guidewire and/or catheter in translation and/or rotation."
  ],
  "description_excerpt": "There has been an ongoing significant increase in costs of healthcare services in the modern era and globally. For example, in the United States, this is generally the net result of (1) increased supply through advances in modern medical care which have extended the capabilities of medicine, and, (2) increased demand through population base increases resulting from the synergistic effects of (a) increasing birth rates and (b) increasing life expectancy. The effects have led to exponential increases in US expenditures toward healthcare per capita and in net total. The trend is global. Thus, in modern medical practice situations, there is an urgent need to use technology toward a more efficient delivery of care in order to keep the costs of healthcare from ballooning. So-called “POC” (Point of Care) medical delivery technologies seek to advance the independence of individual practitioners and practitioner systems in delivering state of the art healthcare with maximum efficiency.\n\nAs an example of POC technologies, there are devices currently in use that utilize state-of-the-art microsensor, microcomputer and microfluidic technology to automate entire laboratory chemical testing processes that are routinely performed of the blood, urine and serum in clinical medical practice within very portable and sometimes handheld systems. These sorts of systems greatly improve healthcare efficiencies as many extra steps, which may include additional labor, extra specially trained personnel and extra resources, are removed. A recent patent application of Holmes et al. “Point-of-care fluidic systems and uses thereof” U.S. Pat. No.",
  "cpc": [
    "A61M 25/0127",
    "A61B 2034/301",
    "A61B 2034/731",
    "A61B 34/30",
    "A61M 2025/0681",
    "A61M 2025/09175",
    "A61M 25/0111",
    "A61M 25/0668",
    "A61M 25/09041"
  ],
  "ipc": [
    "A61M 25/01",
    "A61M 25/09"
  ],
  "inventors": [
    "Jaywant P. Parmar"
  ],
  "filing_date": "2015-08-24",
  "publication_date": "2020-08-11",
  "grant_date": "2020-08-11",
  "priority_date": "2014-08-22",
  "application_number": "US-201514834342-A",
  "family_id": "54150649",
  "cited_by_count": 19,
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}