Apparatuses and methods for percutaneously implanting objects in patients
First Claim
1. A device for percutaneously implanting marker in a patient, the device comprising:
- an elongated stylet having a proximal section and a distal section;
a first handle attached to the proximal section of the stylet;
a cannula having a proximal portion configured to receive the stylet and a distal portion configured to retain the marker;
a second handle attached to the proximal portion of the cannula; and
a retainer engaged with the first and the second handles, the retainer being configured to restrict relative movement between the first and second handles in a longitudinal direction.
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.
154 Citations
62 Claims
-
1. A device for percutaneously implanting marker in a patient, the device comprising:
-
an elongated stylet having a proximal section and a distal section; a first handle attached to the proximal section of the stylet; a cannula having a proximal portion configured to receive the stylet and a distal portion configured to retain the marker; a second handle attached to the proximal portion of the cannula; and a retainer engaged with the first and the second handles, the retainer being configured to restrict relative movement between the first and second handles in a longitudinal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A device for implanting a marker into a patient, the marker having an alternating magnetic transponder that wirelessly transmits a location signal in response to a wirelessly transmitted excitation energy, the device comprising:
-
a cannula having a wall, a proximal portion, and a distal portion; a marker holder at the proximal portion and/or the distal, portion of the cannula, wherein the marker holder is configured so that the location signal can propagate through the marker holder to a sensor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A device for implanting marker in a patient, the device comprising:
-
a cannula having an interior channel, a proximal portion, and a distal portion configured to retain the marker, a handle attached to the proximal portion of the cannula, the handle having a hub in communication with the interior channel; and a marker container having a connection portion and a chamber coupled to the connection portion, the connection portion being releasably coupleable to the hub with the chamber in communication with the interior channel to deliver the marker from the chamber into the interior channel. - View Dependent Claims (27, 28, 29)
-
-
30. A device for percutaneously Implanting an object in a patient, the device comprising:
-
a handle having an opening; a stylet having a proximal section fixed to the handle, a medial section through the opening in the handle, and a distal section outside of the handle; a cannula over at least a portion of the stylet, the cannula having a proximal portion slidably received through the opening of the handle and a distal portion configured to releasably hold the object; and an actuator connected to the proximal portion of the cannula and received in the handle. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A device for percutaneously implanting an object in a patient, the device comprising:
-
a handle; and a cannula having a wall and distal portion configured to releasably hold the object, wherein the cannula has a hole through the wall through which an electromagnetic signal can propagate. - View Dependent Claims (40, 41)
-
-
42. A device for holding a marker and loading the marker into a cannula, the device comprising:
-
a dielectric housing having a cavity and an opening at one end of the cavity; and a resilient retaining element in the cavity having an inner diameter less than a diameter of the marker. - View Dependent Claims (43, 44, 45, 46)
-
-
47. An assembly, comprising:
-
a marker having a casing and an alternating magnetic transponder in the casing, the transponder having a ferrite core and a coil wrapped around the core, and wherein the transponder wirelessly transmits a resonating location signal in response to a wirelessly transmitted excitation energy; and a marker holder having a dielectric housing, a cavity in the housing in which the marker is received, an opening at a proximal end of the housing, and a retaining element in the cavity having a resilient contact surface contacting the casing of the marker. - View Dependent Claims (48, 49, 50)
-
-
51. A cannula for use in percutaneously implanting an object in, a patient, the cannula comprising a tube having a wall, a proximal inlet configured to receive the object, an intermediate portion extending distally from the proximal inlet, a distal portion extending distally from the intermediate portion, a tip with a cutting edge configured to penetrate the skin of the patient at the distal portion, a restriction at the cutting edge configured to releasably hold the object within the cannula, and a hole through the wall proximate to the distal tip to allow an electromagnetic signal to propagate from the cannula.
-
52. A method for percutaneously implanting an object in a patient, the method comprising:
-
restricting relative movement between a cannula and a stylet in a longitudinal direction with respect to a longitudinal axis of the cannula by engaging a retainer with the cannula and the stylet; driving the cannula and the stylet into the patient while restricting relative longitudinal movement therebetween; releasing the retainer to allow relative movement between the cannula and the stylet; and drawing the cannula proximally over the stylet.
-
-
53. A method for handling a marker configured to be implanted into a patient, the marking having a transponder configured to wirelessly transmit a location signal in response to a wirelessly transmitted excitation energy, the method comprising:
-
loading the marker into a marker holder through which the location signal can propagate; energizing the marker by wirelessly transmitting the excitation energy to the marker; and sensing the location signal wirelessly transmitted from the marker through the marker holder. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61)
-
-
62. A method for testing a marker and percutaneously implanting the marker in a patient, the method comprising:
-
energizing the marker while in a non-conducting container coupled to a proximal end and/or a distal end of a cannula; loading the marker into the cannula; driving cannula and the marker into the patient; and moving the cannula in a proximal direction relative to a stylet in the cannula to release the marker within the patient.
-
Specification