MAGNETIC SURGICAL SLED WITH VARIABLE ARM

• US 20110087224A1
• Filed: 05/27/2010
• Published: 04/14/2011
• Est. Priority Date: 10/09/2009
• Status: Abandoned Application

• Current Assignee: Daniel J. Scott, Jeffrey A. Cadeddu, Raul Fernandez, Richard A. Bergs, Rudolph H. Nobis
• Original Assignee: Daniel J. Scott, Jeffrey A. Cadeddu, Raul Fernandez, Richard A. Bergs, Rudolph H. Nobis
• Inventors: SCOTT, DANIEL J., NOBIS, RUDOLPH H., BERGS, RICHARD A., FERNANDEZ, RAUL, CADEDDU, JEFFREY A.
• Application Number:
  US12/789,245
• Publication Number:
  US 20110087224A1
• Time in Patent Office: Days
• US Class Current: 606/49
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2017/00278 Transorgan operations, e.g. transgastric
• CPC Class Codes: A61B 2017/003 Steerable
• CPC Class Codes: A61B 2017/00876 magnetic
• CPC Class Codes: A61B 2018/00595 Cauterization
• CPC Class Codes: A61B 2090/306 using optical fibres
• CPC Class Codes: A61B 34/73 Manipulators for magnetic surgery
• CPC Class Codes: A61M 25/0127 Magnetic means; Magnetic markers

Abstract

A surgical device comprises an ex vivo magnet and an in vivo sled magnetically attracted to the ex vivo magnet. The sled can be positioned and anchored within a patient by moving the ex vivo magnet. The sled defines a longitudinal axis. An arm extends from the sled. The arm being moveable relative the sled between a retracted position and an extended position. The arm comprises an end effector. A longitudinally oriented screw operatively is connected to the sled and arm such that rotation of the screw moves the arm between the retracted and extended positions.

Claims

1. A surgical device, comprising:

a) an ex vivo magnet;

b) an in vivo sled magnetically attracted to the ex vivo magnet, whereby the sled can be positioned and anchored within a patient by moving the ex vivo magnet, the sled defining a longitudinal axis;

c) an arm extending from the in vivo sled, the arm being moveable relative the sled between a retracted position and an extended position, the arm comprising an end effector; and

d) a longitudinally oriented screw operatively connected to the sled and arm such that rotation of the screw moves the arm between the retracted and extended positions.

2. The surgical device of claim 1, further comprising a track on the sled and a follower positioned in the track and connected to the arm.

3. The surgical device of claim 2, wherein at least a portion of the track runs in tangent with the longitudinal axis.

4. The surgical device of claim 2, where at least a portion of the track runs transverse the longitudinal axis.

5. The surgical device of claim 2, wherein the track is non-linear.

6. The surgical device of claim 1, wherein the end effector is an electro-cautery tip.

7. The surgical device of claim 6, further comprising a brush positioned on the sled, the brush interfering with the electro-cautery tip when the arm is in the retracted position.

8. The surgical device of claim 1, further comprising a tether operatively connected to the end effector and extending from the sled.

9. The surgical device of claim 1, wherein the arm is recessed within the sled in the retracted position.

10. The surgical device of claim 9, wherein the arm is completely recessed within the sled in the retracted position.

11. The surgical device of claim 1, wherein rotation of the screw longitudinally translates the arm relative the sled.

12. The surgical device of claim 11, wherein in the extended position the end effector extends longitudinally beyond the sled.

13. A surgical device, comprising:

a) an anchor;

b) a sled magnetically attracted to the anchor whereby the sled can be positioned within a patient by moving the anchor;

c) an arm extending from the sled, the arm being moveable relative the sled between a retracted position and an extended position, the arm comprising an end effector; and

d) a leadscrew operatively connected to the sled and arm such that rotation of the leadscrew moves the arm between the retracted and extended positions.

14. A surgical device, comprising:

a) an ex vivo magnet;

b) an in vivo sled magnetically attracted to the ex vivo magnet whereby the sled can be positioned within a patient by moving the ex vivo magnet;

c) an arm extending from the in vivo sled, the arm being moveable relative the sled between a retracted position and an extended position, the arm comprising an electro-cautery tip; and

d) a cleaning means on the sled, the cleaning means interfering with the electro-cautery tip when the arm is in the retracted position.