Surgical clip applier with integrated cutter

• US 10,292,712 B2
• Filed: 10/19/2015
• Issued: 05/21/2019
• Est. Priority Date: 01/28/2015
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Shankarsetty, Jeevan Maddur
• Primary Examiner(s): Eastwood, David C
• Assistant Examiner(s): Gabr, Mohamed
• Application Number:
  US14/886,396
• Publication Number:
  US 20160213377A1
• Time in Patent Office: 1,310 Days
• CPC Class Codes: A61B 17/122 Clamps or clips , e.g. for the umbilical cord for the vas deferens A61F6/206
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• CPC Class Codes: A61B 17/3201 Scissors for biopsy A61B10/02
• CPC Class Codes: A61B 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping

Abstract

A surgical clip applier is provided including a housing, at least one handle pivotably connected to the housing, an outer support channel extending distally from the housing, a drive channel slidably disposed within the outer support channel, a jaw assembly including a first and second pair of jaws extending from an end of the outer support channel in a parallel configuration, and an integrated cutting mechanism disposed within a gap defined between the first and second pair of jaws. The jaw assembly is capable of effectuating formation of a pair of clips disposed within a respective first and second pair of jaws in response to movement of the at least one handle and the cutting mechanism is independently operable of the at least one handle. At least one jaw member of each of the pair or jaws includes a curved distal end. A method of operating same is also provided.

Claims

1. A surgical clip applier, comprising:

a housing;

at least one handle pivotably connected to the housing;

an outer support channel extending distally from the housing;

a drive channel slidably disposed within the outer support channel, the drive channel in mechanical communication with the at least one handle;

a jaw assembly including a first and second pair of jaws extending from an end of the outer support channel, the first and second pair of jaws disposed in a parallel configuration, each of the first and second pair of jaws configured to receive a respective clip therein, wherein the jaw assembly is operable to effect formation of each respective clip in response to movement of the at least one handle of the drive channel, wherein at least one jaw member of each of the pair of jaws includes a curved distal end, the curved distal end extending towards the opposite one of the at least one jaw member, the curved distal end configured to retain tissue therein;

a cutting mechanism disposed within a gap defined between the first and second pair of jaws, the cutting mechanism extending from an end of the outer support channel and including a pair of elongate members capable of movement relative to each other, wherein the cutting mechanism is capable of operation independent of the at least one handle; and

a shuttle slidably disposed within the outer support channel, the shuttle being in mechanical cooperation with the cutting mechanism, wherein the shuttle includes an actuating pin disposed on opposing sides of a proximal end thereof and a V-shaped notched defined through opposing sides of a distal end thereof, the V-shaped notch configured to engage the pair of elongate members of the cutting mechanism.

2. The clip applier according to claim 1, further including a biasing element comprising a spring disposed within the drive channel, the biasing element in operable communication with the at least one handle such that the at least one handle is biased towards a first, open position.

3. The clip applier according to claim 1, further comprising a clip loaded into each jaw of the first and second pairs of jaws, wherein the clip includes first and second arms extending distally from a crown, the arms extending distally in a parallel configuration, wherein the first arm includes a transverse extension on a distal end thereof extending towards the second arm, the transverse extension configured to secure tissue therein before formation of the clip.

4. The clip applier according to claim 3, wherein the first arm of the clip includes a cutout adapted to receive a tapered distal end of the second arm when the clip is fully formed, thereby decreasing the probability that the tissue may be pulled out of the clip.

5. The clip applier according to claim 1, further including a trigger lock capable of retaining the at least one handle in a second position wherein the jaw assembly is in an approximated position.

6. The clip applier according to claim 5, wherein the trigger lock is manually releasable.

7. The clip applier according to claim 1, wherein a distal end of each of the pair of elongate members of the cutting mechanism includes a sharpened edge capable of transecting tissue, wherein the sharpened edges are in juxtaposed relation to one another.

8. The clip applier according to claim 1, wherein advancement of the shuttle causes the V-shaped notch to engage a proximal end of each of the pair of elongate members, thereby causing the distal end of each of the pair of elongate members to move from a first, open, position, to a second, approximated, position.

9. A method of ligating and transecting tissue, comprising:

selecting a surgical clip applier including;

a housing;

at least one handle pivotably connected to the housing;

an outer support channel extending distally from the housing;

a drive channel slidably disposed within the outer support channel, the drive channel in mechanical communication with the at least one handle;

a jaw assembly including a first and second pair of jaws extending from an end of the outer support channel, the first and second pair of jaws disposed in a parallel configuration, each of the first and second pair of jaws configured to receive a respective clip therein, wherein the jaw assembly is operable to effect formation of each respective clip in response to movement of the at least one handle and the drive channel, wherein at least one jaw member of each of the pair of jaws includes a curved distal end, the curved distal end extending towards the opposite one of the at least one jaw member such that tissue is retained therein;

a cutting mechanism disposed within a gap defined between the first and second pair of jaws, the cutting mechanism extending from an end of the outer support channel and including a pair of elongate members capable of movement relative to each other, wherein the cutting mechanism is capable of operation independent of the at least one handle; and

a shuttle slidably disposed within the outer support channel, the shuttle being in mechanical cooperation with the cutting mechanism, wherein the shuttle includes an actuating pin disposed on opposing sides of a proximal end thereof and a V-shaped notched defined through opposing sides of a distal end thereof, the V-shaped notch configured to engage the pair of elongate members of the cutting mechanism;

loading a pair of clips within a respective first and second pair of jaws;

advancing first and second pair of jaws of the clip applier within an incision of a patient;

disposing target tissue into the jaw assembly and into the cutting mechanism;

actuating the at least one handle to advance the drive channel, wherein advancing the drive channel causes the first and second pair of jaws to move from an open position to an approximated position, thereby effectuating formation of the pair of clips; and

actuating the cutting mechanism independent of the at least one handle, thereby transecting the target tissue.

10. The method of claim 9, wherein the V-shaped notch defined in opposing sides of the shuttle is dimensioned to move the elongate members of the cutting mechanism from a first, open position, to a second, approximated position, thereby transecting the target tissue.

11. The method of claim 9, further including releasing a trigger lock to return the at least one handle to a first, open position.

12. A surgical clip applier, comprising:

a housing;

at least one handle pivotably connected to the housing;

an outer support channel extending distally from the housing;

a drive channel slidably disposed within the outer support channel, the drive channel in mechanical communication with the at least one handle;

a jaw assembly including a first and second pair of jaws extending from an end of the outer support channel, the first and second pair of jaws disposed in a parallel configuration, each of the first and second pair of jaws configured to receive a respective clip therein, wherein the jaw assembly is operable to effect formation of each respective clip in response to movement of the at least one handle of the drive channel, wherein at least one jaw member of each of the pair of jaws includes a curved distal end, the curved distal end extending towards the opposite one of the at least one jaw member, the curved distal end configured to retain tissue therein;

a cutting mechanism disposed within a gap defined between the first and second pair of jaws, the cutting mechanism extending from an end of the outer support channel and including a pair of elongate members capable of movement relative to each other, wherein the cutting mechanism is capable of operation independent of the at least one handle, and

a shuttle slidably disposed within the outer support channel, the shuttle being in mechanical cooperation with the cutting mechanism, wherein the shuttle includes an actuating pin disposed on opposing sides of a proximal end thereof and advancement of the shuttle causes the V-shaped notch to engage a proximal end of each of the pair of elongate members, thereby causing the distal end of each of the pair of elongate members to move from a first, open, position, to a second, approximated, position.

13. The clip applier according to claim 12, further including a biasing element comprising a spring disposed within the drive channel, the biasing element in operable communication with the at least one handle such that the at least one handle is biased towards a first, open position.

14. The clip applier according to claim 12, further comprising a clip loaded into each jaw of the first and second pairs of jaws, wherein the clip includes first and second arms extending distally from a crown, the arms extending distally in a parallel configuration, wherein the first arm includes a transverse extension on a distal end thereof extending towards the second arm, the transverse extension configured to secure tissue therein before formation of the clip.

15. The clip applier according to claim 14, wherein the first arm of the clip includes a cutout adapted to receive a tapered distal end of the second arm when the clip is fully formed, thereby decreasing the probability that the tissue may be pulled out of the clip.

16. The clip applier according to claim 12, further including a trigger lock capable of retaining the at least one handle in a second position wherein the jaw assembly is in an approximated position.

17. The clip applier according to claim 16, wherein the trigger lock is manually releasable.