Patent ID: 11877898
Assignee: HOLOGIC, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A remotely detectable marker for implantation in a targeted site within a patient's body from which tissue has been removed, the marker comprising:
a radiopaque element comprising a braided, woven or mesh structure formed by polymeric threads and defining an interior region and having a distinguishing pattern for unique identification under x-ray imaging, wherein, upon implantation in the targeted site, the radiopaque element is configured to transition from a collapsed shape to an expanded shape, the expanded shape being different than the collapsed shape; and
a non-palpable body contained within the interior region of the radiopaque element, the non-palpable body being configured to transition between a pre-deployment configuration and a post-deployment configuration when exposed to a fluid, wherein:
in the pre-deployment configuration, the non-palpable body comprises a substantially dehydrated material, and
in the post-deployment configuration, the substantially dehydrated material of the non-palpable body swells to a final, fully expanded size, such that a post-deployment volume of the non-palpable body is between 5 and 100 percent greater than a pre-deployment volume of the non-palpable body in approximately 30 to 60 minutes, to partially fill a cavity at the targeted site, and to remain substantially physically stable when implanted within the cavity for at least approximately 52 weeks, the non-palpable body being configured to reflect ultrasound in a way that the non-palpable body is recognizable as being artificial and is distinguishable from the radiopaque element when implanted within the cavity, and
wherein, in the post-deployment configuration, when the non-palpable body is in the final, fully expanded size, the non-palpable body fills less than an entirety of the interior region of the expanded shape of the radiopaque element.