Handheld radiation delivery system
First Claim
Patent Images
1. Apparatus for delivery of a radiation treatment source comprising:
- a first module;
a second module adapted to be removably associated with the first module and adapted to receive a radiation treatment source comprising a source wire with a radioactive source carried at the distal end of the source wire;
a cannula extending from one of the first module and the second module;
an advancement mechanism associated with the first module and cooperatively engageable with the second module, the advancement mechanism being operable to advance a radiation treatment source disposed within the second module from a first, retracted position wherein the radiation treatment source is located fully within the second module and a second, treatment position wherein the radiation treatment source extends into the cannula and the radioactive source is located at a selected position within the cannulaa remote actuator; and
a flexible umbilicus operatively connecting the remote actuator and the advancement mechanism, the remote actuator and flexible umbilicus being operable to transmit a force to the advancement mechanism for selective movement of the radiation treatment source between the first and second positions.
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Abstract
A handheld radiation delivery system is disclosed that includes a two-part delivery module comprising a reusable portion that contains a radioactive source wire and a disposable portion that includes a drive assembly for moving the radioactive source wire between storage and treatment positions. A disposable applicator tip is provided that includes a cannula for receiving the radioactive source wire when in the treatment position and a mechanism for limiting the number of uses of the device. A handheld cable actuator is operatively connected to the disposable portion of the handpiece to impart motion to the source wire.
545 Citations
41 Claims
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1. Apparatus for delivery of a radiation treatment source comprising:
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a first module; a second module adapted to be removably associated with the first module and adapted to receive a radiation treatment source comprising a source wire with a radioactive source carried at the distal end of the source wire; a cannula extending from one of the first module and the second module; an advancement mechanism associated with the first module and cooperatively engageable with the second module, the advancement mechanism being operable to advance a radiation treatment source disposed within the second module from a first, retracted position wherein the radiation treatment source is located fully within the second module and a second, treatment position wherein the radiation treatment source extends into the cannula and the radioactive source is located at a selected position within the cannula a remote actuator; and a flexible umbilicus operatively connecting the remote actuator and the advancement mechanism, the remote actuator and flexible umbilicus being operable to transmit a force to the advancement mechanism for selective movement of the radiation treatment source between the first and second positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. Radiation source delivery apparatus comprising:
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a housing; a cannula extending from the housing; a treatment source located within the housing and movable between a first, retracted position within the housing and a second, treatment position within the cannula; a limiter disposed between housing and the cannula and operable automatically to limit to a pre-determined maximum the number of movements the treatment source can make between the first and second positions. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A disposable radiation treatment apparatus subassembly comprising:
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a radiation source housing and a removably attachable connection assembly; a cannula extending from the connection assembly for receiving a radiation source from the housing through the connection assembly; the connection assembly including a limit assembly for limiting the maximum number of times that a radiation source can move between the source housing and the cannula. - View Dependent Claims (30)
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31. Treatment source delivery apparatus comprising:
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a housing adapted to receive a treatment source; a cannula extending from the housing; an advancement assembly located within the housing for moving a treatment source between a first position within the housing and a second position in the cannula; a remote actuator for actuating the advancement assembly; and an umbilicus extending between the remote actuator and housing, the umbilicus being in operable communication with the housing and actuator and adapted to transmit a motive force to the advancement assembly for actuating the advancement assembly. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification