Apparatuses and methods for percutaneously implanting objects in patients
First Claim
1. A device for percutaneously implanting an object in a patient, the device comprising:
- a handle;
a cannula having a proximal portion slidably carried proximate to the handle and a distal portion configured to releasably hold the object; and
an actuator connected to the proximal end of the cannula and movably disposed relative to the handle, wherein the actuator comprises an interface element that (a) engages the handle to restrict axial movement between the actuator and the handle, and (b) disengages the handle to allow the cannula to slide axially relative to the handle and release the object within the patient.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatuses and methods for percutaneously implanting objects, such as radioactive seeds or markers, in patients. In one embodiment, a device for percutaneously implanting an object in a patient includes a handle, a cannula projecting outwardly from the handle, and an actuator movably disposed relative to the handle. In one aspect of this embodiment, the cannula can be configured to releasably hold the object and percutaneously penetrate the patient. In another aspect of this embodiment, the actuator can be operably connected to the cannula and operable to move the cannula relative to the handle and release the object within the patient. In a further aspect of this embodiment, the cannula can include a tip portion having a restriction configured to releasably hold the object for implantation in the patient.
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Citations
32 Claims
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1. A device for percutaneously implanting an object in a patient, the device comprising:
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a handle;
a cannula having a proximal portion slidably carried proximate to the handle and a distal portion configured to releasably hold the object; and
an actuator connected to the proximal end of the cannula and movably disposed relative to the handle, wherein the actuator comprises an interface element that (a) engages the handle to restrict axial movement between the actuator and the handle, and (b) disengages the handle to allow the cannula to slide axially relative to the handle and release the object within the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12-17. -17. (canceled)
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18. A cannula for use in percutaneously implanting an object in a patient, the cannula comprising:
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a proximal portion having an inlet configured to receive the object;
an intermediate portion extending distally from the proximal portion; and
a distal portion extending distally from the intermediate portion, the distal portion having a tip with a cutting edge configured to penetrate the skin of the patient and a restriction at the cutting edge configured to releasably hold the object within the cannula prior to release of the object in the patient. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method for percutaneously implanting an object in a patient, the method comprising:
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locking a cannula to a handle in a first position in which the cannula carries an object to be implanted in a patient;
driving the handle and the cannula as a unitary introducer in a distal direction with a single hand of an operator to percutaneously insert a distal end of the cannula into the patient; and
moving the cannula in a proximal direction relative to the handle to release the object within the patient. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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Specification