Tissue Resection Device

A medical device, the device comprising:

• an outer tubular member;
• a middle tubular member, the middle tubular member configured to be rotatable relative to the outer tubular member;
• and
• an inner tubular member configured to reciprocate and rotate relative to the middle tubular member;
• wherein the outer tubular member comprises a first opening, wherein the middle tubular member comprises a second opening, wherein the first opening is aligned with the second opening, wherein the outer tubular member comprises a first window proximate the first opening, wherein the middle tubular member comprises a second window proximate the second opening,
• wherein the inner tubular member is configured to reciprocate and rotate while the middle tubular member and the outer tubular member are configured to be stationary, and wherein the middle tubular member is configured to be rotatable relative to the outer tubular member while the inner tubular member is configured to be stationary.

A cutting device for cutting tissue, the device comprising:

• an outer tubular member having a first opening;
• a middle tubular member having a second opening, the middle tubular member configured to be rotatable relative to the outer tubular member;
• and
• an inner tubular member configured to reciprocate and rotate relative to the middle tubular member;
• wherein the outer tubular member comprises a first window proximate the first opening, wherein the middle tubular member comprises a second window proximate the second opening,
• wherein the first opening and the second opening are configured to form a cutting tool when the middle tubular member rotates relative to the outer tubular member while the inner tubular member is configured to be stationary.

A cutting device for cutting tissue, the device comprising:

• an outer tubular member having a first opening;
• a middle tubular member having a second opening, the middle tubular member configured to be rotatable relative to the outer tubular member;
• and
• an inner tubular member configured to reciprocate and rotate relative to the middle tubular member;
• wherein the middle tubular member and the outer tubular member are configured to be stationary when the inner tubular member reciprocates and rotates relative to the middle tubular member while the first opening and the second opening are facing in opposite directions to form a closed configuration such that no liquid can flow through the first opening.

A cutting device for cutting tissue, the device comprising:

• an outer tubular member having a first opening with cutting surface;
• a middle tubular member having a second opening with cutting surface, the middle tubular member configured to be rotatable relative to the outer tubular member;
• and
• an inner tubular member configured to reciprocate and rotate relative to the middle tubular member;
• wherein the first opening and the second opening are configured to form one cutting tool while the inner tubular member is configured to be stationary, wherein the inner tubular member is configured to reciprocate and rotate while the middle tubular member and the outer tubular member are configured to be stationary, and wherein the first opening and the second opening are configured to form a closed configuration when the openings are facing in opposite directions such that no liquid can flow through the first opening.

A cutting device for cutting tissue, the device comprising:

• an outer tubular member having a first opening and a first window, wherein the first opening comprises a cutting surface;
• a middle tubular member having a second opening and a second window, wherein the second opening comprises a cutting surface, wherein the middle tubular member is configured to be rotatable relative to the outer tubular member;
• and
• an inner tubular member configured to reciprocate and rotate relative to the middle tubular member;
• wherein the first opening and the second opening are configured to form a cutting tool when the middle tubular member rotates relative to the outer tubular member, and wherein the inner tubular member is configured to form another cutting tool while it reciprocates and rotates relative to the middle tubular member when it is exposed by a superimposition of the first window and the second window.