Markers for use in brachytherapy and other radiation therapy that resist migration and rotation
First Claim
Patent Images
1. An implantable marker, comprising:
- a longitudinal marker body including a radiopaque material; and
a polymeric material that encapsulates at least a portion of the marker body;
wherein an outer surface of the polymeric material includes two or more rows of protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation;
wherein each of said rows of protrusions includes a plurality of rectangular knobs having sidewalls substantially perpendicular to the longitudinal marker body; and
wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle.
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Abstract
In an embodiment, an implantable marker, which is adapted to be implanted into patient tissue using a hollow needle, includes a marker body including a radiopaque material and a polymeric material that encapsulates at least a portion of the marker body. In an embodiment, an outer surface of the encapsulating material includes one or more protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation.
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Citations
20 Claims
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1. An implantable marker, comprising:
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a longitudinal marker body including a radiopaque material; and a polymeric material that encapsulates at least a portion of the marker body; wherein an outer surface of the polymeric material includes two or more rows of protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation; wherein each of said rows of protrusions includes a plurality of rectangular knobs having sidewalls substantially perpendicular to the longitudinal marker body; and wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable marker, comprising:
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a longitudinal marker body that is at least partially radiopaque; and a polymeric material molded to completely encapsulate the marker body; wherein an outer surface of the polymeric material includes two or more rows of protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation; wherein each of said rows of protrusions includes a plurality of rectangular knobs having sidewalls substantially perpendicular to the longitudinal marker body; and wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An implantable marker, comprising:
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a member with a longitudinal body, which longitudinal body has a first end and a second end, said member is at least partially radiopaque; and a polymeric material molded to completely encapsulate the member; wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle; and wherein a portion of the molded polymeric material extends in a longitudinal direction from at least one of the first end and the second end of the longitudinal body of the member to reduce a tendency of the member to migrate and rotate within a patient'"'"'s body after implantation of the member. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An implantable marker, comprising:
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a longitudinal marker body including a radiopaque material; and a polymeric material that encapsulates at least a portion of the marker body; wherein an outer surface of the polymeric material includes two or more rows of protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation; wherein each of said rows of protrusions includes a plurality of rectangular knobs having sidewalls substantially perpendicular to the longitudinal marker body; wherein each of said rows of protrusions is provided longitudinally along the longitudinal marker body; and wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle.
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20. An implantable marker, comprising:
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a longitudinal marker body that is at least partially radiopaque; and a polymeric material molded to completely encapsulate the marker body; wherein an outer surface of the polymeric material includes two or more rows of protrusions to reduce a tendency of the marker to migrate and rotate within a patient'"'"'s body after implantation; wherein each of said rows of protrusions includes a plurality of rectangular knobs having sidewalls substantially perpendicular to the longitudinal marker body; wherein each of said rows of protrusions is provided longitudinally along the longitudinal marker body; and wherein the implantable marker is adapted to be implanted into patient tissue using a hollow needle.
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Specification