{
  "patent_number": "US 12733848",
  "country": "US",
  "title": "Device for Collecting and Separating Bodily Fluids Using Pressure",
  "original_title": "Fluid control devices and methods of using the same",
  "summary": "This patent describes a device that uses different levels of negative pressure to first isolate a portion of bodily fluid and then collect a separate sample from a fluid source.",
  "what_it_does": "The device manages bodily fluids using two distinct control steps. First, it has an inlet to connect to a fluid source and an outlet to a collection device that creates a negative pressure difference. A 'sequestration portion' has a first flow controller that opens when the negative pressure reaches a certain level, allowing fluid into this portion. Then, a 'sampling portion' has a second flow controller that opens only when the negative pressure increases to a higher level, allowing a separate sample to flow into the collection device. For example, it could first isolate a specific volume of blood plasma and then, with more suction, draw a separate blood sample for analysis.",
  "what_it_does_not_cover": [
    "Does not cover fluid control devices that use only a single flow controller for both sequestration and sampling.",
    "Does not cover systems where the sequestration and sampling portions activate at the same negative pressure magnitude.",
    "Does not cover devices that rely on positive pressure to move fluids, rather than a negative pressure differential.",
    "Does not cover fluid collection systems that do not differentiate between a sequestration portion and a sampling portion.",
    "Does not cover devices where the flow controllers are manually operated rather than automatically transitioning based on pressure."
  ],
  "filed": "2021-11-02",
  "granted": "2026-09-15",
  "expires": null,
  "status": "active",
  "holder": null,
  "holder_url": null,
  "inventors": [],
  "times_cited": 0,
  "tags": [
    "biotech",
    "medical_devices",
    "diagnostics",
    "fluidics"
  ],
  "abstract": "A fluid control device includes an inlet configured to be placed in fluid communication with a bodily fluid source and an outlet configured to be placed in fluid communication with a fluid collection device, which can produce a negative pressure differential between the outlet and the inlet. A sequestration portion is in fluid communication with the inlet and includes a first flow controller configured to transition from a first state to a second state to place the sequestration portion in fluid communication with the outlet when the negative pressure differential has a first magnitude. A sampling portion is in fluid communication with an outlet and includes a second flow controller configured to transition from a first state to a second state to place the sampling portion in fluid communication with the inlet when the negative pressure differential has a second magnitude greater than the first magnitude.",
  "url": "https://patentbrief.org/patent/us/12733848/fluid-control-devices-and-methods-of-using-the-same-12733848",
  "markdown_url": "https://patentbrief.org/patent/us/12733848/fluid-control-devices-and-methods-of-using-the-same-12733848/md",
  "google_patents_url": "https://patents.google.com/patent/US12733848",
  "relatedPatents": [
    {
      "patentNumber": "12733849",
      "countryCode": "US",
      "title": "How Suction Controls Fluid Collection for Medical Tests",
      "url": "https://patentbrief.org/patent/us/12733849/fluid-control-devices-and-methods-of-using-the-same"
    },
    {
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      "countryCode": "US",
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    },
    {
      "patentNumber": "12734520",
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      "url": "https://patentbrief.org/patent/us/12734520/interposer-with-first-and-second-adhesive-layers"
    },
    {
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      "countryCode": "US",
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  ]
}