摘要:
Devices and methods for collecting or cutting and collecting a specimen from a mass of tissue within a patient. The device may include a specimen collection assembly including a flexible membrane that isolates collected specimen from the surrounding tissue. The collection device may also include structures that draw the collected specimen toward the shaft and/or otherwise ease the insertion and retraction of the device and the collected specimen from the patient through a small incision.
摘要:
A method of cutting breast tissue for removal may include a step of providing a tissue cutting device having an elongate cutting element, the cutting element being movable between a bowed position and a retracted position, the cutting element having a radially outer side and a radially inner side. The tissue cutting device may be introduced into a breast and the elongate cutting element may be moved to the bowed position. A power source may be coupled to the elongate cutting element; and the cutting element may be rotated after the moving step so that the cutting element cuts the breast tissue. The radially outer side of the cutting element may have a larger surface area for transmitting energy to cut the tissue than the radially inner side.
摘要:
Surgical devices include a selectively cutting and atraumatic distal tip that is configured to assume a first configuration in which cutting surface or surfaces thereof are effective to cut tissue and a second configuration in which the cutting surface or surfaces thereof are ineffective to cut tissue.
摘要:
Devices and methods for collecting or cutting and collecting a specimen from a mass of tissue within a patient. The device may include a specimen collection assembly including a flexible membrane that isolates collected specimen from the surrounding tissue. The collection device may also include structures that draw the collected specimen toward the shaft and/or otherwise ease the insertion and retraction of the device and the collected specimen from the patient through a small incision.
摘要:
A device for cutting and collecting a specimen from a mass of tissue may include a shaft, an integrated cut and collect assembly coupled to the shaft and an actuator. The shaft may define an opening and may include an outer surface that defines a trough adjacent the opening, the trough defining a ledge portion that is cut out of the shaft. The integrated cut and collect assembly may include an RF cutting portion and a collection portion that includes a flexible membrane, the collection portion being attached to the cutting portion, the integrated cut and collect assembly being configured to assume a retracted position at least partially within the opening such that part of the collection portion is disposed within the trough and in contact with the ledge portion and a selectable expanded position that extends through the opening and away from the shaft. The cutting portion may be configured to cut the specimen from the mass of tissue and the collection portion may be configured to collect the cut specimen and to isolate the cut specimen within the membrane. The trough may be configured to minimize contact of the cutting portion with the tissue to be cut as the cutting portion is becoming fully energized in the retracted position. The actuator may be coupled to the integrated assembly such that operation of the actuator causes a deployment of the integrated assembly from the retracted position to the selectable expanded position.
摘要:
Devices and methods for cutting and collecting a specimen from a mass of tissue. The device may include an integrated cut and collect assembly. The integrated cut and collect assembly includes a cutting portion and a collection portion that includes a flexible membrane. The collection portion of the assembly is attached to the cutting portion thereof. The cutting portion is configured to cut the specimen from the mass of tissue and the collection portion is configured to collect the cut specimen and to encapsulate and isolate the cut specimen within the membrane to enable its safe retraction from the mass of tissue.
摘要:
Devices and methods for cutting and collecting a specimen from a mass of tissue. The device may include an integrated cut and collect assembly. The integrated cut and collect assembly includes a cutting portion and a collection portion that includes a flexible membrane. The collection portion of the assembly is attached to the cutting portion thereof. The cutting portion is configured to cut the specimen from the mass of tissue and the collection portion is configured to collect the cut specimen and to encapsulate and isolate the cut specimen within the membrane to enable its safe retraction from the mass of tissue.
摘要:
The device is used to remove tissue from a patient and to also place a marker in the patient. The device has an opening through which tissue enters the device. The tissue, which enters the opening is cut and the tissue is removed. The device may be used a number of times to remove a number of tissue masses. The device also includes a marker, which the user may release in the patient at the desired time.
摘要:
The device is used to remove tissue from a patient and to also place a marker in the patient. The device has an opening through which tissue enters the device. The tissue, which enters the opening is cut and the tissue is removed. The device may be used a number of times to remove a number of tissue masses. The device also includes a marker, which the user may release in the patient at the desired time.
摘要:
The device is used to remove tissue from a patient and to also place a marker in the patient. The device has an opening through which tissue enters the device. The tissue, which enters the opening is cut and the tissue is removed. The device may be used a number of times to remove a number of tissue masses. The device also includes a marker, which the user may release in the patient at the desired time.