Multiple biopsy device
First Claim
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1. A device for obtaining multiple biopsy samples from a patient, comprising:
- a cap including a step to engage the distal end face of an endoscope, the cap having first and second isolated biopsy chambers formed therein, each isolated biopsy chamber having an opening through which tissue can enter the biopsy chamber;
a tissue cutter associated with the cap such that relative movement between the cutter and the first biopsy chamber and subsequent relative movement between the cutter and the second biopsy chamber sequentially cuts tissue that has entered the first and second biopsy chambers.
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Abstract
A multiple biopsy device has a number of chambers into which tissue samples are received. A cutting mechanism, such as a blade, moves relative to the chambers to cut a tissue sample that is within a chamber. In one embodiment of the invention, the multiple biopsy device is removably secured to the distal end of an endoscope/bronchoscope.
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Citations
26 Claims
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1. A device for obtaining multiple biopsy samples from a patient, comprising:
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a cap including a step to engage the distal end face of an endoscope, the cap having first and second isolated biopsy chambers formed therein, each isolated biopsy chamber having an opening through which tissue can enter the biopsy chamber; a tissue cutter associated with the cap such that relative movement between the cutter and the first biopsy chamber and subsequent relative movement between the cutter and the second biopsy chamber sequentially cuts tissue that has entered the first and second biopsy chambers. - 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. A medical system for obtaining multiple biopsy samples from a patient, comprising:
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an endoscope having a proximal end and a distal end; a biopsy device configured to be removably secured to the distal end face of the endoscope, the biopsy device comprising; a throughbore configured for interfacing with the distal end of the endoscope; a plurality of biopsy chambers arranged around and outwardly of the throughbore, each of the biopsy chambers having an opening in which tissue can be received, wherein the openings of the biopsy chambers face outwardly of the distal end face of the endoscope; a cutter for cutting tissue that enters the biopsy chambers; an actuator that moves the cutter under control of the user in a sequential manner between the plurality of biopsy chambers; and a seal for closing a biopsy chamber once tissue has been cut and received in the biopsy chamber. - View Dependent Claims (21, 22, 23)
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24. A method of obtaining multiple biopsy samples from a patient, comprising:
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inserting an endoscope into a patient having a cap secured to a distal end face of the endoscope, the cap including two or more biopsy chambers which face outwardly of the distal end face of the endoscope; obtaining a first tissue sample in a first biopsy chamber by applying vacuum to a first biopsy chamber to draw tissue into the first biopsy chamber; moving the first biopsy chamber relative to a tissue cutter to cut the tissue from the patient; sealing the first biopsy chamber;
thereafter obtaining a second tissue sample in a second biopsy chamber;thereafter removing the endoscope from the patient; and removing the tissue samples from the first and/or second biopsy chamber. - View Dependent Claims (25, 26)
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Specification