SURGICAL CLIP APPLIER WITH DISSECTOR

• US 20160338695A1
• Filed: 08/02/2016
• Published: 11/24/2016
• Est. Priority Date: 05/04/2012
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Hartoumbekis, Elias
• Granted Patent: US 10,660,639 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/02 for holding wounds open; Tractors specula A61B1/32 ; drainage appliances for wounds A61M27/00
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/128 for applying or removing clamps or clips
• CPC Class Codes: A61B 17/1285 for minimally invasive surgery
• 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 2017/00353 one mechanical instrument performing multiple functions, e.g. cutting and grasping channel for multiple instruments A61B2017/3445; instrument channel A61B2017/22072; replaceable heads A61B2017/2931; suction A61M1/00
• CPC Class Codes: A61B 2017/00738 part of the tool being offset with respect to a main axis, e.g. for better view for the surgeon
• CPC Class Codes: A61B 2017/07285 characterised by its cutter
• CPC Class Codes: A61B 2017/320052 Guides for cutting instruments by marking A61B2090/395

Abstract

A surgical clip applier is provided including a housing; at least one handle pivotably connected to the housing; a channel assembly extending distally from the housing; a jaw assembly including a pair of jaws extending from an end of the channel assembly, opposite the housing, the jaw assembly adapted to accommodate a clip of a plurality of clips loaded in the clip applier and being operable to effect formation of the clip in response to movement of the at least one handle; and a dissector bar supported on the housing and the channel assembly, wherein the dissector bar is actuatable from the housing and includes a proximal position wherein a distal end of the dissector bar is disposed proximal of a distal-most end of the jaw assembly, and at least one distal position wherein the distal end of the dissector bar projects beyond the distal-most end of the jaw assembly.

Claims

1. (canceled)

2. A surgical clip applier for performing a surgical procedure, the surgical clip applier comprising:

a housing having a slot;

a channel assembly extending distally from the housing and having an outer surface; and

a dissector bar supported within the housing and including an actuator extending through the slot of the housing, the actuator being axially moveable relative to the housing to move the dissector bar along the outer surface of the channel assembly between a distal position and a proximal position relative to the housing.

3. The surgical clip applier according to claim 2, wherein the dissector bar includes a surface in contact with the outer surface of the channel assembly during the translation of the dissector bar between the distal position and the proximal position.

4. The surgical clip applier according to claim 2, wherein the slot of the housing has a length and a width, and wherein the actuator includes a knob having a transverse width that is greater than the width of the slot.

5. The surgical clip applier according to claim 2, wherein the channel assembly and the dissector bar each includes a proximal end portion and a distal end portion, respectively, wherein when the dissector bar is in the proximal position, the distal end portion of the dissector bar is disposed proximal of the distal end portion of the channel assembly and when the dissector bar is in the distal position, the distal end portion of the dissector bar projects beyond the distal end portion of the channel assembly.

6. The surgical clip applier according to claim 4, wherein the slot of the housing includes a gasket extending along at least a portion of the length of the slot, wherein the gasket reduces the width of the slot and frictionally engages the knob of the actuator to maintain a longitudinal position of the knob.

7. The surgical clip applier according to claim 4, wherein the slot of the housing includes a deformable material extending along at least a portion of the length of the slot, the deformable material defining a first series of axially spaced apart ridges extending from a first side of the slot towards the knob to reduce the width of the slot at corresponding spaced apart intervals.

8. The surgical clip applier according to claim 7, wherein the first series of axially spaced apart ridges defines a corresponding first series of axially spaced apart pockets configured to selectively locate the knob, wherein when the knob is disposed in a pocket of the first series of axially spaced apart pockets, adjacent spaced apart ridges of the first series of axially spaced apart ridges engage the knob to prevent axial movement of the knob relative to the housing.

9. The surgical clip applier according to claim 8, wherein the deformable material of the slot defines a second series of axially spaced apart ridges extending from a second side of the slot, opposite the first side of the slot, towards the knob and the first series of axially spaced apart ridges, the second series of axially spaced apart ridges being in registration with the first series of axially spaced apart ridges to reduce the width of the slot at corresponding spaced apart intervals, wherein the second series of axially spaced apart ridges defines a corresponding second series of axially spaced apart pockets configured to selectively locate the knob.

10. The surgical clip applier according to claim 5, further comprising:

at least one handle pivotably connected to the housing; and

a pair of jaw members extending from the distal end portion of the channel assembly, the pair of jaw members operable to effect formation of a clip in response to movement of the at least one handle relative to the housing.

11. The surgical clip applier according to claim 10, wherein the dissector bar includes a dissector extending distally from the distal end portion thereof.

12. The surgical clip applier according to claim 11, wherein the dissector includes a pair of transversely spaced-apart fingers extending in at least a substantially distal direction.

13. The surgical clip applier according to claim 12, wherein when the dissector bar is in the distal position, the pair of jaw members are disposed between the pair of transversely spaced-apart fingers of the dissector.

14. A surgical clip applier for performing a surgical procedure, the surgical clip applier comprising:

a housing;

a channel assembly extending distally from the housing and having an outer surface;

a dissector bar movably supported within the housing and extending distally therefrom in a direction parallel to the channel assembly, the dissector bar being longitudinally movable relative to the housing between a distal position and a proximal position, the dissector bar having a surface; and

a structure extending between the channel assembly and the dissector bar, the structure configured to maintain contact between the outer surface of the channel assembly and the surface of the dissector bar.

15. The surgical clip applier according to claim 14, wherein the structure is a strap connected to the channel assembly and extending across the surface of the dissector bar.

16. The surgical clip applier according to claim 14, wherein the dissector bar includes an elongated slot and the structure includes a peg being secured to the channel assembly and extending through the elongated slot of the dissector bar to maintain contact between the outer surface of the channel assembly and the surface of the dissector bar during longitudinal translation of the dissector bar relative to the housing.

17. The surgical clip applier according to claim 14, wherein the housing includes a slot and the dissector bar includes an actuator extending through the slot of the housing, the actuator being axially moveable relative to the housing to move the dissector bar along the outer surface of the channel assembly between the distal position and the proximal position relative to the housing.

18. The surgical clip applier according to claim 17, wherein the slot of the housing has a length and a width, and wherein the actuator includes a knob having a transverse width that is greater than the width of the slot.

19. The surgical clip applier according to claim 17, wherein the channel assembly and the dissector bar each includes a proximal end portion and a distal end portion, respectively, wherein when the actuator is axially moved relative to the housing such that the dissector bar is in the proximal position, the distal end portion of the dissector bar is disposed proximal of the distal end portion of the channel assembly and when the actuator is axially moved relative to the housing such that the dissector bar is in the distal position, the distal end portion of the dissector bar projects beyond the distal end portion of the channel assembly.

20. The surgical clip applier according to claim 18, wherein the slot of the housing includes a gasket extending along at least a portion of the length of the slot, wherein the gasket reduces the width of the slot and frictionally engages the knob of the actuator to maintain a longitudinal position of the knob.