Tissue removal device

• US 20060058776A1
• Filed: 06/17/2003
• Published: 03/16/2006
• Est. Priority Date: 06/18/2002
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Tyco Healthcare Group LP (Medtronic Plc)
• Inventors: Bilsbury, Andrew J
• Granted Patent: US 7,762,959 B2
• Time in Patent Office: Days
• US Class Current: 604/540
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/00907 for light

Abstract

In a tissue removal device for receiving and removing body tissue from an interior portion of a body in a minimally invasive surgical procedure, the tissue removal device including a tubular body having a distal end, a proximal end and defining a lumen therethrough, a bag support structure configured and dimensioned to be receivable within the lumen of the tubular body, wherein the bag support structure has a first configuration for positioning within the lumen of the tubular body and a second configuration for opening a bag operatively coupled thereto, and a bag operatively coupled to the bag support structure, the bag including a first end portion defining an open end.

Claims

1. A tissue removal device, comprising:

a tubular body having a distal end, a proximal end and defining a lumen at least partially therethrough;

a bag support structure configured and dimensioned to be receivable within the lumen of the tubular body, wherein the bag support structure has a first configuration for positioning within the lumen of the tubular body and a second configuration for opening a bag operatively coupled thereto;

a bag operatively coupled to the bag support structure, the bag including a first end portion defining an open end, a mid-portion, and a second end portion opposite the first end portion; and

the bag support structure including a first member disposed between the first end portion and the second end portion for at least partially closing the bag.

2. The tissue removal device of claim 1, wherein the first member comprise a ring operatively connected to a distal end of a rod.

3. The tissue removal device according to claim 1, wherein the first member comprises a first hoop operatively connected to the bag at a location spaced a distance from the first end portion.

4. The tissue removal device as in claim 3, wherein each of the first and second hoops has a first configuration in which the bag is substantially closed and a second configuration in which the bag is substantially open.

5. The tissue removal device as in claim 4, wherein each of the first and second hoops is made of a wire extending through at least one aperture formed in the distal end of the shaft, wherein displacement of the wire of each of the first and second hoops, in a distal direction, urges the respective one of the first and second hoops to the second configuration, and wherein displacement of the wire of each of the first and second hoops, in a proximal direction, urge the respective one of the first and second hoops to the first configuration.

6. The tissue removal device according to claim 5, wherein the ring is operatively connected to the first end portion of the bag, and wherein a hoop is operatively connected to the bag at a location spaced a distance from the first end portion of the bag.

7. The tissue removal device according to claim 2, wherein the ring is resilient, and wherein the ring has a first configuration in which the ring is biased for receipt in the lumen of the tubular body and a second configuration in which the ring is unbiased and has a diameter larger than the diameter of the lumen of the tubular body.

8. The tissue removal device according to claim 1, wherein a mid-portion of the bag has a first diameter and wherein the first end portion of the bag has a second diameter which is greater than the first diameter of the mid-portion.

9. The tissue removal device according to claim 1, further comprising a removable sheath for encasing the bag and the distal end of the bag support structure therein.

10. The tissue removal device according to claim 1, further comprising a plurality of ribs extending longitudinally along a length of the bag.