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US 10,743,746 B2Granted
Endoscopic device
OwnerDaniel Shatsinventor
Life of this patent
Estimating the term…
Abstract
A tool for an endoscope comprises an elongated shaft including a proximal end and a distal end, wherein the elongated shaft comprises a tubular member with an interior channel extending from the distal end toward the proximal end and a one or more perforations in the tubular member that are spaced from the distal end, the one or more perforations providing fluid communication between an exterior of the elongated shaft and the interior channel.
Claims21
A cutting and resection tool for use with an endoscope that is insertable into a body cavity of a patient to examine the body cavity and to cut and resect a polyp from the body cavity, the endoscope comprising a working channel, wherein suction is applied to the working channel from a suction source through an umbilical cable, the cutting and resecting tool comprising:
- a cutting structure configured to cut and resect the polyp from the body cavity;
- an elongated, flexible shaft configured to be inserted completely through the working channel of the endoscope during an exploratory procedure through a tool inlet channel that is separate from the umbilical cable, the elongated shaft including a proximal end and a distal end, wherein the elongated shaft comprises a tubular member with an interior channel extending from the distal end toward the proximal end, wherein the tubular member is configured to be extended distally from a distal tip of the endoscope, and wherein the distal end of the elongated shaft is configured to be put in contact with the polyp when the tubular member is extended distally from the distal tip;
- and
- one or more perforations in the tubular member that are spaced from the distal end, the one or more perforations providing fluid communication between the exterior of the elongated shaft and the interior channel, wherein the one or more perforations are configured to transfer at least a portion of the suction from the working channel around the exterior of the elongated shaft into the interior channel;
- wherein the transferred suction creates a vacuum at the distal end, wherein the distal end is configured so that the vacuum produces a vacuum force that is exerted between the distal end and the polyp when the distal end is in contact with the polyp;
- wherein the one or more perforations, the tubular member, and the distal end are configured so that the portion of the suction transferred into the interior channel is sufficient so that the vacuum force at the distal end secures the polyp to the distal end of the elongated shaft, during cutting and resection of the polyp and is sufficient such that the vacuum force at the distal end holds the resected polyp at the distal end after the polyp has been cut and resected from the body cavity;
- and
- wherein the elongated shaft is configured to be proximally withdrawn through the working channel while maintaining the vacuum force through the one or more perforations while the one or more perforations are within the working channel, and wherein the one or more perforations and the elongated shaft are configured so that when the suction is applied to the working channel, the portion of the suction transferred into the interior channel is sufficient so that the vacuum force continues to hold the resected polyp at the distal end while the elongated shaft is proximally withdrawn through the working channel.
5 more elements
An endoscope comprising:
- an operating unit comprising one or more controls for operating the endoscope;
- a flexible insertion member configured to be inserted into a body cavity of a patient, wherein the body cavity is proximate to a tissue structure of the patient, the insertion, member being coupled to the operating unit at an insertion-member proximal end and extending to an insertion-member distal end, the insertion member comprising a working channel extending from the insertion-member proximal end to the insertion-member distal end through an interior of the insertion member;
- an umbilical cable coupled to the operating unit, wherein the umbilical cable is in fluid communication with the working channel;
- a suction source in fluid communication with the operating unit via the umbilical cable, wherein the suction source provides suction to the working channel via the umbilical cable;
- a tool inlet channel through the operating unit that connects with the working channel, wherein the tool inlet channel is separate from the umbilical cable;
- a cutting structure configured to cut and resect a tissue polyp from the tissue structure;
- and
- a tissue-securing tool comprising:
- an elongated shaft configured to be inserted through the tool inlet channel and completely through the working channel during an exploratory procedure, the elongated shaft comprising a shaft proximal end and a shaft distal end, the elongated shaft comprising a tubular member with an interior channel extending from the shaft distal end toward the shaft proximal end, wherein the tubular member is configured to be extended distally from the insertion-member distal end and the shaft distal end is configured to be put into contact with the tissue polyp when the tubular member is extended distally from the insertion-member distal end;
- and
- one or more perforations in the tubular member spaced from the shaft distal end, the one or more perforations providing fluid communication between the working channel exterior to the elongated shaft and the interior channel, wherein the one or more perforations are configured to transfer at least a portion of the suction from the working channel exterior to the elongated shaft into the interior channel of the elongated shaft;
- wherein the transferred suction creates a vacuum at the shaft distal end, wherein the shaft distal end is configured so that the vacuum produces a vacuum force that is exerted between the shaft distal end and the tissue polyp when the distal end is in contact with the tissue polyp;
- wherein the one or more perforations, the tubular member, and the shaft distal end are configured so that when the suction is applied to the working channel, the portion of the suction transferred into the interior channel is sufficient so that the vacuum force at the shaft distal end secures the tissue polyp to the shaft distal end during cutting and resecting of the tissue polyp from the tissue structure with the cutting structure and holds the resected tissue polyp at the shaft distal end after the tissue polyp has been cut and resected from the tissue structure;
- and
- wherein the elongated shaft is configured to be proximally withdrawn through the working channel while maintaining the vacuum force through the one or more perforations while the one or more perforations are within the working channel, and wherein the one or more perforations and the elongated shaft are configured so that when the suction is applied to the working channel, the portion of the suction transferred into the interior channel is sufficient so that the vacuum force continues to hold the resected tissue polyp at the distal end while the elongated shaft is proximally withdrawn through the working channel.
12 more elements
Dependencies are inferred from the claim text.