Surgical clip applier with integrated clip counter

Patent metadata

Field	Value
Publication number	US-2016256157-A1
Application number	US-201615155131-A
Country	US
Kind code	A1
Filing date	May 16, 2016
Priority date	Dec 29, 2011
Publication date	Sep 8, 2016
Grant date	—

Abstract

A surgical clip applier is provided including a channel assembly and overlying a clip carrier having a clip counter plate slidably supported in the channel assembly, wherein the clip counter plate is configured and adapted to display a change in status of the clip applier upon actuation of the handle.

First claim

1 - 17 . (canceled)

18 . A surgical clip applier, comprising:
a handle assembly; a channel assembly operatively coupled to the handle assembly; a clip counter plate slidably supported in the channel assembly, the clip counter plate including a plurality of discrete indicia formed on a first surface and a plurality of recesses formed in a second surface thereof, wherein the clip counter plate is configured and adapted to display a change in a status of the clip applier upon actuation of the handle assembly; and a walking beam disposed within the channel assembly and operatively coupled to the handle assembly, the walking beam including a tab dimensioned to selectively engage the plurality of recesses formed in the second surface of the clip counter plate, wherein upon actuation of the handle assembly, the walking beam is translated in a first direction, such that the tab of the walking beam engages the clip counter plate to translate the clip counter plate in the first direction, wherein upon translation of the clip counter plate in the first direction, one discrete indicia of the plurality of discrete indicia is discernible to display the change in the status of the clip applier.

19 . The clip applier according to claim 18 , further comprising:
a housing; a clip carrier disposed within the channel assembly and defining a channel; and a plurality of clips slidably disposed within the channel of the clip carrier.

20 . The clip applier according to claim 19 , wherein each discrete indicia of the plurality of discrete indicia relates to a corresponding quantity of clips of the plurality of clips contained in the clip applier.

21 . The clip applier according to claim 18 , wherein the one discrete indicia of the plurality of discrete indicia that is discernible to display the change in the status of the clip applier is visible through the channel assembly.

22 . The clip applier according to claim 19 , further comprising a clip pusher bar reciprocally positioned within at least one of the housing or the channel assembly, the clip pusher bar having a first end operatively connected to the handle assembly and a second end defining a pusher, the clip pusher bar being movable away from a pair of jaws as the handle assembly is actuated by an initial amount in order move the pusher behind a distal-most clip of the plurality of clips stored in the channel of the clip carrier, the clip pusher bar being configured and adapted to move towards the pair of jaws as the handle assembly is returned to a home position to move the distal-most clip between the pair of jaws.

23 . The clip applier according to claim 19 , further comprising a clip follower slidably disposed within the channel of the clip carrier and disposed proximally of the plurality of clips, the clip follower configured for selective engagement with the clip carrier and the walking beam, wherein the clip follower is configured to urge the plurality of clips in a second direction relative to the clip carrier, upon reciprocal movement of the walking beam, wherein the second direction is a distal direction.

24 . The clip applier according to claim 23 , wherein the walking beam includes a plurality of distally oriented ramps extending into the channel of the clip carrier, and wherein the distally oriented ramps of the walking beam are configured to selectively engage an aperture defined in the clip follower and urge the clip follower in the distal direction upon movement of the walking beam the distal direction.

25 . The clip applier according to claim 24 , wherein the clip carrier defines a plurality of distally oriented ramps, wherein the plurality of distally oriented ramps of the clip carrier are configured to selectively engage the aperture defined in the clip follower to stop movement of the clip follower in the first direction upon movement of the walking beam in the first direction, wherein the first direction is a proximal direction.

26 . The clip applier according to claim 19 , further comprising a jaw assembly including a pair of jaws extending from an end of the channel assembly, the jaw assembly adapted to accommodate a clip of the plurality of clips therein, the jaw assembly being operable to effect formation of the clip in response to actuation of the handle assembly.

27 . The clip applier according to claim 22 , wherein the clip pusher bar is connected to the walking beam, and wherein axial translation of the clip pusher bar results in concomitant axial translation of the walking beam.

28 . The clip applier according to claim 27 , wherein the clip pusher bar and the walking beam are configured and connected to one another such that a delay is provided between the axial translation of the clip pusher bar and the axial translation of the walking beam.

29 . The clip applier according to claim 25 , further comprising a drive linkage system configured to move the clip pusher bar in the proximal direction upon actuation of the handle assembly, and configured to move the clip pusher bar in the distal direction upon a subsequent release of the handle assembly.

30 . The clip applier according to claim 23 , wherein the clip follower functions as a lockout when the clip follower is advanced by the walking beam to a position between the pair of jaws.

31 . The clip applier according to claim 30 , wherein when the clip follower is positioned between the pair of jaws and prevents the pair of jaws from completely closing, thereby preventing the clip applier from completing a full closing stroke.

32 . The clip applier according to claim 25 , wherein the clip carrier includes a resilient finger configured to engage a plurality of notches formed in the first surface of the clip counter plate, wherein as the walking beam is moved in the distal direction due to the movement of the clip pusher bar in the distal direction, the resilient finger of the clip carrier engages one of the plurality of notches formed in the first surface of the clip counter plate to maintain an axial position of the clip counter plate.

33 . A surgical clip applier, comprising:
a handle assembly; a channel assembly operatively coupled to the handle assembly; a clip counter plate slidably supported in the channel assembly, the clip counter plate including a plurality of notches formed in a first surface and a plurality of recesses formed in a second surface thereof, wherein the clip counter plate is configured and adapted to display discernible indicia corresponding to a change in a status of the clip applier upon actuation of the handle assembly; a clip carrier disposed within the channel assembly and defining a channel, the clip carrier including a resilient finger configured to selectively engage the plurality of notches formed in the first surface of the clip counter plate; and a walking beam disposed within the channel assembly and being operatively coupled to the handle assembly, the walking beam including a tab dimensioned to selectively engage the plurality of recesses formed in the second surface of the clip counter plate, wherein when the walking beam is translated in a first direction, the tab of the walking beam engages one of the plurality of recesses formed in the second surface of the clip counter plate to translate the clip counter plate in the first direction, and wherein when the walking beam is translated in a second direction, the resilient finger of the clip carrier engages one of the plurality of notches formed in the first surface of the clip counter plate to maintain an axial position of the clip counter plate.

Assignees

• Covidien Lp

Inventors

• Rockrohr Brian
• Malkowski Jaroslaw T

Classifications

• A61B90/08

  Accessories or related features not otherwise provided for · CPC title

• A61B2017/00367

  Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like · CPC title

• A61B17/105

  Wound clamp magazines (for packaging sharps A61B50/3001) · CPC title

• A61B17/1285 Primary

  for minimally invasive surgery · CPC title

• A61B17/068 Primary

  Surgical staplers {, e.g. containing multiple staples or clamps}({staplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105;} for performing anastomosis A61B17/115; {staplers in general B25C5/00}) · CPC title