Full thickness resection device control handle

• US 6,821,282 B2
• Filed: 09/20/2001
• Issued: 11/23/2004
• Est. Priority Date: 11/27/2000
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Scimed Life Systems Incorporated (Boston Scientific Corporation)
• Inventors: DiCesare, Paul, Radziunas, Jeffrey, Monroe, Mark, Gutelius, Patrick, Sullivan, Roy H., Perry, Stephen J.
• Primary Examiner(s): Jackson, Gary
• Application Number:
  US09/957,901
• Publication Number:
  US 20020065525A1
• Time in Patent Office: 1,160 Days
• Field of Search: 606/170, 606/167, 606/174, 606/208, 600/562
• US Class Current: 606/139
• CPC Class Codes: A61B 17/07207 the staples being applied sequentially
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/115 Staplers for performing anastomosis in a single operation
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 17/320016 Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes A61B10/0233, A61B17/29, A61B17/3207 take precedence
• CPC Class Codes: A61B 2017/0725 with settable gap between anvil and cartridge, e.g. for different staple heights at different shots
• CPC Class Codes: A61B 2017/2905 flexible
• CPC Class Codes: A61B 2017/2923 Toothed members, e.g. rack and pinion
• CPC Class Codes: A61B 2017/320032 Details of the rotating or oscillating shaft, e.g. using a flexible shaft

Abstract

A control mechanism for a resectioning device, comprises a first actuator coupled to a flexible drive shaft for actuating a first mechanism when operated in a first direction and for actuating, when operated in a second direction, a second mechanism and a first lockout mechanism coupled to the first actuator for preventing actuation of the first actuator in the second direction before a predetermined amount of actuation in the first direction has been completed. Furthermore, mechanisms are provided to control the release during operation in a second direction of torsional energy stored in a flexible drive shaft during operation in a first direction.

Claims

1. A control mechanism for a resectioning device, comprising:

a first actuator coupled to a flexible drive shaft for actuating a first mechanism when operated in a first direction and for actuating, when operated in a second direction, a second mechanism; and

a first lockout mechanism coupled to the first actuator for preventing actuation of the first actuator in the second direction before a predetermined amount of actuation in the first direction has been completed.

2. The control mechanism according to claim 1, further comprising a second actuator for actuating a third mechanism, the second actuator being coupled to the first actuator by a second lockout mechanism permitting operation of only one of the first and second actuators at a given time.

3. The control mechanism according to claim 2, wherein the second lockout mechanism includes a locking member moveable between a first position engaging the first actuator and preventing actuation thereof and a second position engaging the second actuator and preventing actuation thereof, wherein, when in the first position, the locking member is disengaged from the second actuator and, when in the second position, the locking member is disengaged from the first actuator.

4. The control mechanism according to claim 3, wherein the first actuator includes a first abutting surface which, when the locking member is in the first position, engages the locking member and wherein the second actuator includes a second abutting surface which, when the locking member is in the second position, engages the locking member.

5. The control mechanism according to claim 1, further comprising a torque controlling mechanism coupled to the flexible drive shaft for controlling a release, after the predetermined amount of actuation of the first actuator in the first direction has been completed, of torsional energy stored in the flexible drive shaft.

6. The control mechanism according to claim 5, wherein the torque controlling mechanism includes a braking member which resists rotation of the flexible drive shaft in a direction opposite a direction of rotation imparted to the flexible drive shaft by actuation of the first actuator in the first direction.

7. The control mechanism according to claim 6, wherein the braking mechanism frictionally engages one of the flexible drive shaft and a member extending between the flexible drive shaft and the first actuator.

8. The control mechanism according to claim 1, wherein the first actuator and the first lockout mechanism are mounted in a control handle defining a central endoscope receiving channel extending therethrough.

9. The control mechanism according to claim 8, wherein a distal end of the control handle is coupled to a flexible sheath through which the flexible drive shaft extends to a resection device.