Tissue cutting device and system
First Claim
1. A tissue cutting system for cutting tissue of a heart, such as tissue of a septum of a heart, comprising:
- an outer tubular member having a proximal portion and a distal portion, said distal portion comprising a tissue resection window;
a resection element axially slidably arranged inside the outer tubular member configured to resect tissue extending through the tissue resection window;
at least one pressure sensor;
wherein the outer tubular member and resection element are arranged to establish;
a first fluid flow channel suitable for transporting resected tissue away from an area adjacent to the resection element;
at least one second fluid flow channel configured to assist the first fluid channel in transporting resected tissue; and
a processor configured to determine whether the measured pressure is below a predetermined pressure threshold and whether the tissue to be resected fills the resection window when vacuum is applied in the first fluid flow channel based on the measured pressure.
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Accused Products
Abstract
The present disclosure relates to a tissue cutting system for cutting tissue of a heart, such as tissue of a septum of a heart, comprising: an outer tubular member having a proximal portion and a distal portion, said distal portion comprising a tissue resection window; a resection element axially slidably arranged inside the outer tubular member configured to resect tissue extending through the tissue resection window; at least one pressure sensor; wherein the outer tubular member and resection element are arranged to establish: a first fluid flow channel suitable for transporting resected tissue away from an area adjacent to the resection element; at least one second fluid flow channel configured to assist the first fluid flow channel in transporting resected tissue. The present disclosure further relates to a method for resecting tissue using the disclosed tissue cutting system.
35 Citations
30 Claims
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1. A tissue cutting system for cutting tissue of a heart, such as tissue of a septum of a heart, comprising:
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an outer tubular member having a proximal portion and a distal portion, said distal portion comprising a tissue resection window; a resection element axially slidably arranged inside the outer tubular member configured to resect tissue extending through the tissue resection window; at least one pressure sensor; wherein the outer tubular member and resection element are arranged to establish; a first fluid flow channel suitable for transporting resected tissue away from an area adjacent to the resection element; at least one second fluid flow channel configured to assist the first fluid channel in transporting resected tissue; and a processor configured to determine whether the measured pressure is below a predetermined pressure threshold and whether the tissue to be resected fills the resection window when vacuum is applied in the first fluid flow channel based on the measured pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A tissue cutting system for cutting tissue of a heart, such as tissue of a septum of a heart, comprising:
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an outer tubular member having a proximal portion and a distal port on, said distal portion comprising a tissue resection window; a resection element axially slidably arranged inside the outer tubular member configured to resect tissue extending, through the tissue resection window; a plunger sealingly engaged inside the outer tubular member; at least one pressure sensor; wherein the outer tubular member and resection element are arranged to establish; a first fluid flow channel suitable for transporting resected tissue away from an area adjacent to the resection element; and at least one second fluid flow channel configured to assist the first fluid floe channel in transporting resected tissue.
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Specification