SURGICAL RETRIEVAL APPARATUS FOR THORACIC PROCEDURES

• US 20120179165A1
• Filed: 09/19/2011
• Published: 07/12/2012
• Est. Priority Date: 01/06/2011
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Grover, Simon Roderick, Godbold, Oliver Brian, Fleming, Alistair Ian
• Granted Patent: US 8,734,464 B2
• Time in Patent Office: Days
• US Class Current: 606/114
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• 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 2017/2927 the angular position of the head being adjustable with respect to the shaft

Abstract

A surgical retrieval apparatus includes a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom. The housing and the elongated sleeve cooperate to define a lumen extending longitudinally therethrough. A shaft having an end effector disposed at a distal end thereof is selectively translatable between a first position, wherein the end effector is disposed within the elongated sleeve, and a second position, wherein the shaft is translated through the lumen such that the end effector extends distally from the elongated sleeve. An articulation mechanism operably coupled to the end effector is configured for articulating the end effector relative to the longitudinal axis. A specimen retrieval bag is coupled to the end effector and is deployed therefrom upon movement of the end effector from the first position to the second position.

Claims

1. A surgical retrieval apparatus, comprising:

a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom, the housing and the elongated sleeve cooperating to define a lumen extending longitudinally therethrough;

a shaft having an end effector assembly disposed at a distal end thereof, the shaft selectively translatable between a first position, wherein the end effector assembly is disposed within the elongated sleeve, and a second position, wherein the shaft is translated distally through the lumen such that the end effector assembly extends distally from the elongated sleeve;

an articulation mechanism operably coupled to the end effector assembly, the articulation mechanism configured for selectively articulating the end effector assembly with respect to the longitudinal axis when the shaft is disposed in the second position and articulation of the end effector assembly is inhibited when the shaft is disposed in the first position; and

a specimen retrieval bag coupled to the end effector assembly, the specimen retrieval bag deployable from an undeployed position to an extended position upon movement of the end effector assembly from the first position to the second position.

2. The surgical retrieval apparatus according to claim 1, further comprising at least one locking mechanism for retaining the shaft in at least one of the first and second positions.

3. The surgical retrieval apparatus according to claim 1, further comprising a release trigger configured, upon actuation, to permit manual translation of the shaft from the second position back to the first position.

4. The surgical retrieval apparatus according to claim 1, wherein translation of the shaft from the second position back to the first position separates the specimen retrieval bag from the end effector assembly.

5. The surgical retrieval apparatus according to claim 1, further comprising a cinch cord coupled at a distal end thereof to an open end of the specimen retrieval bag and releasably engaged at a proximal end thereof to the shaft such that, upon translation of the shaft from the second position back to the first position, the cinch cord is pulled proximally relative to the specimen retrieval bag to cinch closed the open end of the specimen retrieval bag.

6. The surgical retrieval apparatus according to claim 1, wherein the articulation mechanism includes an articulation wheel coupled to an articulation bar, the articulation wheel being selectively rotatable about the longitudinal axis to translate the articulation bar along the longitudinal axis for articulating the end effector assembly relative to the longitudinal axis.

7. A surgical retrieval apparatus, comprising:

a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom, the housing and the elongated sleeve cooperating to define a lumen extending longitudinally therethrough;

a shaft having an end effector assembly disposed at a distal end thereof, the shaft selectively translatable between a first position, wherein the end effector assembly is disposed within the elongated sleeve, and a second position, wherein the shaft is translated distally through the lumen such that the end effector assembly extends distally from the elongated sleeve; and

an articulation mechanism coupled to the end effector assembly, the articulation mechanism transitionable from a disengaged state to an engaged state upon translation of the shaft from the first position to the second position;

and a specimen retrieval bag supported by the end effector assembly, the specimen retrieval bag deployable from an undeployed position to an open position.

8. The surgical retrieval apparatus according to claim 7, wherein in the engaged state, rotation of the articulation mechanism articulates the end effector assembly relative to the longitudinal axis.

9. The surgical retrieval apparatus according to claim 8, wherein the articulation mechanism includes an articulation wheel, the articulation wheel is coupled to an articulation bar upon transitioning of the articulation mechanism to the engaged state, the articulation wheel being selectively rotatable to translate the articulation bar along the longitudinal axis to articulate the end effector assembly relative to the longitudinal axis.

10. The surgical retrieval apparatus according to claim 9, further comprising:

a clutch coupled to the articulation wheel such that rotation of the articulation wheel effects longitudinal translation of the clutch, the clutch including an engagement arm configured to engage the articulation bar; and

a collar configured to bias the engagement arm of the clutch into engagement with the articulation bar upon translation of the shaft from the first position to the second position.

11. The surgical retrieval apparatus according to claim 7, wherein articulation of the end effector assembly is inhibited when the shaft is disposed in the first position.

12. The surgical retrieval apparatus according to claim 7, further comprising a release trigger configured, upon actuation, to permit manual translation of the shaft from the second position back to the first position, wherein upon actuation, the release trigger transitions the articulation mechanism to the disengaged state.

13. A surgical retrieval apparatus, comprising:

a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom, the housing and the elongated sleeve cooperating to define a lumen extending longitudinally therethrough;

a shaft having an end effector assembly disposed at a distal end thereof, the shaft selectively translatable between a first position, wherein the end effector assembly is disposed within the elongated sleeve, and a second position, wherein the shaft is translated distally through the lumen such that the end effector assembly extends distally from the elongated sleeve;

a releasable latch coupled to the shaft, the releasable latch transitionable between an open condition and a closed condition; and

a specimen retrieval bag releasably disposed on the end effector assembly, the specimen retrieval bag including a cinch cord coupled to an open end thereof and extending proximally therefrom, the cinch cord engageable within the releasable latch;

wherein, when the shaft is disposed in the first position, the releasable latch is operable and wherein, when the shaft is disposed in the second position, the releasable latch is inoperable.

14. The surgical retrieval apparatus according to claim 13, wherein translation of the shaft from the second position back to the first position separates the specimen retrieval bag from the end effector assembly, and the specimen retrieval bag is cinched closed upon translation of the shaft from the second position back to the first position.

15. The surgical retrieval apparatus according to claim 14, further comprising an interference member configured to separate the specimen retrieval bag from the end effector assembly upon translation of the shaft from the second position back to the first position.

16. A surgical retrieval apparatus, comprising:

a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom, the housing and the elongated sleeve cooperating to define a lumen extending longitudinally therethrough;

a shaft having an end effector assembly disposed at a distal end thereof, the shaft selectively translatable between a first position, wherein the end effector assembly is disposed within the elongated sleeve, and a second position, wherein the shaft is translated distally through the lumen such that the end effector assembly extends distally from the elongated sleeve;

a plunger slidably coupled to a proximal end of the shaft, the plunger transitionable between a first condition, wherein the plunger is substantially disposed within the shaft, and a second condition, wherein the plunger substantially extends proximally from the shaft; and

a release trigger, the release trigger selectively actuatable to transition the plunger from the first condition to the second condition to facilitate translation of the shaft from the second position back to the first position.

17. The surgical retrieval apparatus according to claim 16, wherein transitioning of the plunger from the first condition to the second condition is inhibited when the shaft is disposed in the first position.

18. The surgical retrieval apparatus according to claim 16, wherein, when the shaft is disposed in the second position and the plunger is disposed in the first condition, the plunger is substantially flush with the housing.

19. The surgical retrieval apparatus according to claim 16, wherein, upon actuation of the release trigger, a distal finger of the plunger is disengaged from an aperture defined within the shaft permitting the plunger to transition to the second condition.

20. The surgical retrieval apparatus according to claim 16, further comprising an articulation mechanism coupled to the end effector assembly, the articulation mechanism configured for selectively articulating the end effector assembly with respect to the longitudinal axis when the shaft is disposed in the second position, actuation of the release trigger disengages the articulation mechanism.

21. A method of specimen retrieval, the method comprising the steps of

providing a surgical retrieval apparatus including:

a housing defining a longitudinal axis and including an elongated sleeve extending distally therefrom, the housing and the elongated sleeve cooperating to define a lumen extending longitudinally therethrough;

a shaft having an end effector assembly disposed at a distal end thereof, the shaft selectively translatable through the lumen;

an articulation mechanism coupled to the end effector assembly; and

a specimen retrieval bag releasably positioned on the end effector assembly;

inserting the shaft partially into the lumen through a proximal end of the housing to a first position, wherein the end effector assembly is disposed within the elongated sleeve;

positioning the surgical retrieval apparatus within an internal body cavity;

translating the shaft distally through the lumen to a second position wherein the end effector assembly extends distally from the elongated sleeve to deploy the specimen retrieval bag and enable articulation; and

articulating the end effector assembly with respect to the longitudinal axis to position an open end of the specimen retrieval bag adjacent the specimen of tissue to be retrieved.

22. The method according to claim 21, further comprising the step of locking the shaft in at least one of the first and second positions.

23. The method according to claim 21, further comprising the step of actuating a release trigger to permit manual translation of the shaft from the second position back to the first position such that the end effector assembly is disposed within the elongated sleeve.

24. The method according to claim 21, wherein translation of the shaft from the second position back to the first position separates the specimen retrieval bag from the end effector assembly.

25. The method according to claim 21, wherein a cinch cord is coupled at a distal end thereof to an open end of the specimen retrieval bag and is releasably engaged at a proximal end thereof to the shaft such that, upon translation of the shaft from the second position back to first third position, the cinch cord is pulled proximally to cinch the open end of the bag closed and further including the step of disengaging the proximal end of the cinch cord from the shaft upon movement of the shaft from second position back to the first position.

26. The method according to claim 21, wherein the articulating step includes selectively rotating an articulation wheel about the longitudinal axis to articulate the end effector assembly relative to the longitudinal axis.