摘要:
A therapeutic member for use in brachytherapy deliverable to an implant site by way of a needle comprises a single radioactive source encapsulated by a bio-absorbable material having an outer surface including one or more ribs encircling the single radioactive source, a leading edge endcap rib and a trailing edge endcap rib. The one or more ribs reduces a tendency of the member to migrate and rotate within a patient's body after implantation. The encapsulating material further includes a first rail formed from the bio-absorbable material extending at least from opposite sides of the outer surface of the encapsulating material along the longitudinal axis of the therapeutic member, and a second rail formed from the bio-absorbable material extending at least from opposite sides of the outer surface of the encapsulating material along the longitudinal axis of the therapeutic member, the second rail arranged in a plane substantially perpendicular to a plane in which the first rail is arranged. Another embodiment includes wings that selectively extend from an implant preventing movement of the implant.
摘要:
A prescription method of treating tissue comprises the steps of accepting a prescription tissue treatment plan for the tissue to be treated, positioning seeds relative to each other per the prescription tissue treatment plan such that the positions of seeds relative to each other is only established by the prescription tissue treatment plan, and creating a treatment strand by heating and cooling a material to position the plurality of treatment seeds in the material. The prescription tissue treatment plan specifies a number and a spacing of the seeds to be provided in the treatment strand, the spacing of the treatment seeds being unrestricted by any use of spacers and independently set by and according to the prescription tissue treatment plan.
摘要:
Echogenic strands and spacers are provided for use in brachytherapy. Methods of making the strands and spacers are also provided. An echogenic strand for use in brachytherapy includes an encapsulating material, a seed disposed within the encapsulating material, and a spacer disposed within the encapsulating material and arranged adjacent to the seed. The spacer has an external length and a chamber formed along the external length, the chamber being adapted to improve ultrasound visibility relative to the spacer.
摘要:
A delivery system and method for interstitial radiation therapy comprising a strand made of material, which is bio-absorbable in living tissue and a plurality of radioactive seeds dispersed in a predetermined array within the strand. The strands can have custom end spacings, which allow the optimal placing of seeds within the treatment tissue by implanting a plurality of strands to the same depth. A plurality of these strands can be implanted at the same time by the use of a guiding device. In certain embodiments, a custom end spacing within a needle is not attached to the strand in the needle. In certain embodiments, the custom end spacing, seeds and spacers within a needle are loose, i.e., not part of a strand.
摘要:
In an embodiment a therapeutic member includes a single radioactive seed and is adapted to be implanted into patient tissue using a hollow needle. The seed includes a metallic housing with radioactive material contained within the metallic housing. A polymeric bio-adherent and/or bio-adhesive material surrounds at least a portion the housing of the single radioactive seed. The polymeric bio-adherent and/or bio-adhesive material reduces a tendency of the member to migrate and rotate within a patient's body after implantation of the member.
摘要:
A delivery system and method for interstitial radiation therapy comprising a substantially axially stiff and longitudinally flexible elongated member made of material, which is bio-absorbable in living tissue and a plurality of radioactive seeds dispersed in a predetermined array within the member. The delivery system and method further customize the member based on a prescription.
摘要:
A treatment strand for insertion into a patient using a needle. The treatment strand includes an elongated member having first and second longitudinal ends, and a plurality of treatments seeds spaced apart from one another between the longitudinal ends. One of the longitudinal ends of the elongated member is a needle plug.
摘要:
A combined bone marrow aspiration and core biopsy device. A large bore cannula includes a coaxial stylet which seals both ends of the cannula, allowing fluid to be aspirated through the space between stylet and cannula. Then, a core sample is taken with the cannula after the stylet is retracted.
摘要:
A treatment strand for insertion into a patient using a needle. The strand includes an elongated member having first and second longitudinal ends, and a plurality of treatments seeds spaced apart from one another within the elongated member between the longitudinal ends. A needle plug is located at one of the longitudinal ends of the elongated member and integrally formed with the elongated member. The integrally formed needle plug is configured to prevent at least one of fluid and tissue from entering a needle when the elongated member is loaded into a needle and the needle is initially inserted into a patient.
摘要:
A delivery system and method for interstitial radiation therapy comprising a substantially axially stiff and longitudinally flexible elongated strand made of material, which is bio-absorbable in living tissue and a plurality of radioactive seeds dispersed in a predetermined array within the strand. The delivery system and method further customize the strand based on a prescription. The strands can have custom end spacings, which allow the optimal placing of seeds within the treatment tissue by implanting a plurality of strands to the same depth. A plurality of these strands can be implanted at the same time by the use of a guiding device.