Patent EP0605254B1 successfully refreshed from Google Patents.
EP0605254B1
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EP
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Surgical instrument
Assignee: Pilling Weck Inc
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Filing: 1993-12-30
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Granted: 1997-05-28
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Expires: 2013-12-30
Abstract
Abstract The surgical instrument system disclosed is particularly useful for endoscopic procedures. In the preferred embodiment, a hemostatic clip applicator can be directly connected to a trigger assembly or indirectly connected to the trigger assembly through the use of an extension. The connection between the extension and the clip applicator is secured to prevent accidental release during the procedure. The applicator receives a longitudinal input and translates the input into relative component motion through the use of gearing to apply the clips.
Inventors
- 👤 Curtis W. Thornton
- 👤 Thomas W. Ruckdeschel
- 👤 Elise Powell Speaks
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 06:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/128; A61B17/1285; A61B2017/0046; A61B2017/00464
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
159 words
A surgical instrument comprising a clip applicator component (10) and a manually operable actuator component (14) having an actuating member (136) mounted therein for reciprocal proximal and distal movements, wherein the applicator component (10) has an elongated tubular shape and contains a clip feeder member (30) for feeding clips and a closure member (52) for forming clips, which members are interconnected within the tubular applicator component (10) for relative reverse proximal and distal movements, one of said feeder and closure members (30, 52) within the clip applicator component (10) being connected to the actuating member (136) of the actuator component (14) such that, on operation of the actuator component (14), it is moved, the feeder and closure members (30, 52) being interconnected such that the movement of said one of the members (30, 52) creates a force on the other of said members (30, 52), said force moving said other of said members (30, 52) in the opposed direction.
Claim 2
Dependent Claim
20 words
The instrument of claim 1 further comprising a rotary assembly (74. 76) interconnecting said feeder and closure members (30, 52).
Claim 3
Dependent Claim
69 words
The instrument of claim 2 wherein: said rotary assembly comprises: at least one gear member (76); a first rack (82) operably connected to said clip feeder member (30) and said gear member (76); and a second rack (84) operably connected to said closure member (52) and said gear member (76); said racks (82, 84) being disposed on opposed sides of said gear member (76) for creating said reverse movement.
Claim 4
Dependent Claim
56 words
The instrument of claim 3 wherein: said gear member (76) further comprises: at least a first and second gear (78, 80), fixedly mounted concentrically adjacent each other; said applicator component (10) accommodating a variety of size ratios between said first and second gears to selectively create differing amounts of reverse movement responsive to an applied force.
Claim 5
Dependent Claim
77 words
The instrument of claim 3 or 4 wherein a jaw (58, 60) is provided for forming said clip such that upon a force input to said applicator component (10), said closure member (52) advances over at least a portion of said jaw (58, 60) causing said jaw (58, 60) to close to form said clip and said clip feeder member (30) retracts away from said jaw (58, 60) by virtue of rotation of said gear member (76).
Claim 6
Dependent Claim
89 words
The instrument of claim 5 wherein: said second rack (84) is movable at least in part independently of said closure member (52); a latch mechanism (88) is provided on said second rack (84) to force it to selectively hold its position while said closure member (52) moves in a direction allowing said jaw (58, 60) to open; and a release mechanism (94) on said closure member (52) is operably connected to said latch mechanism (88) to defeat said latch mechanism (88) allowing said clip feeder member (30) to advance.
Claim 7
Dependent Claim
124 words
The instrument of claim 6 wherein: said applicator component (10) contains a plurality of clips (28) arranged in line; said latch mechanism (88) holds said gear member (76) and said clip feeder member (30) still until said release mechanism, which comprises a tab (94), defeats said latch mechanism (88) after initial retraction of said closure member (52) from said jaw (58, 60); biasing means (96) is connected to said second rack (84) operable to accelerate said second rack (84) upon action of said tab (94), to in turn spin said gear member (76) and advance said first rack (82) and said clip feeder member (30) to feed the next clip in line only after said jaw (58, 60) has opened sufficiently to accept it.
Claim 8
Dependent Claim
67 words
The instrument of any preceding claim, which comprises at least one removably mounted extension component (12), said components (10, 12, 14) being connectable to each other to form a joint by virtue of interaction between an extending member (180) mating with a receiving member (110) and a locking member (164, 166) to selectively trap said extending member (180) in said receiving member (110) to form said joint.
Claim 9
Dependent Claim
64 words
The instrument of claim 8 wherein: said actuating member (136) is an actuating rod responsive to hand operation of said actuator component (14); said actuating rod extending into said extension component (12); said extension component comprising an extension rod (148) in alignment with said actuating rod (136) to transfer motion of said actuating rod to said applicator component (10) for operation of said instrument.
Claim 10
Dependent Claim
45 words
The instrument of claim 2 wherein said feeder and closure members (30, 52) are stacked; and said rotary assembly (74, 76) comprises round members (78, 80) of different diameters to be driven simultaneously to create differing amounts of opposed motion between said members (30, 52).
Claim 11
Dependent Claim
58 words
The instrument of claim 1, 2 or 10 wherein the arrangement is such that a jaw (58, 60) is closed due to initial movement of said closure member (52), and said clip feeder member (30) is retracted from said jaw (58, 60) due to said initial movement of said closure member (52) before closing said jaw (58, 60).
Claim 12
Dependent Claim
107 words
The instrument of claim 11 wherein the arrangement is such that said closure member (52) is allowed to reverse its movement after closing of said jaw (58, 60); said jaw (58, 60) is opened; opposed movement of said clip feeder member (30) is delayed such that a clip can be retained in an unfed position due to said delay and fed after said jaw (58, 60) has opened sufficiently due to said closure member (52) reversing its movement; said clip feeder member (30) is allowed to move in an opposite direction to said closure member (52); and the clip can be positioned in said jaw (58, 60).
Claim 13
Dependent Claim
25 words
The instrument of any one of claims 1, 2, 10, 11 and 12 wherein said actuator component (14) includes a removably mounted extension member (12).
Claim 14
Dependent Claim
46 words
The instrument of any one of claims, 1, 2, 10, 11, 12 and 13 wherein a securing member (164, 166) extends from said actuator component (14, 12) into said applicator component (10) to secure connection between said actuator component (14, 12) and said applicator component (10).
Claim 15
Dependent Claim
65 words
The instrument of claim 14 wherein the arrangement is such that a slot (110) in said applicator component (10) is advanced over a pin (180) on said actuator component member (14, 12); said applicator component (10) is rotated; said slot (110) is presented adjacent said securing member (164, 166); and said securing member (164, 166) is biased into said slot (110) to secure the connection.
Claim 16
Dependent Claim
49 words
The instrument of claim 14 wherein the actuator component (14, 12) provides a segmented actuating rod (148) and at least two components which are connected and aligned and through which the segmented actuating rod (148) is moved; said components being secured to each other using a pin-slot-securing member assembly.
Claim 17
Dependent Claim
36 words
The instrument of any one of claims 1, 2 and 10-16 wherein the actuator component (14) is formed to be grasped by hand, and has a housing which accepts an end of said applicator component (10).
Claim 18
Dependent Claim
68 words
The instrument of claim 17 wherein: securing means is provided on said applicator component (10) and said housing selectively engageable to prevent accidental disconnection during a surgical procedure; said housing (124) comprises an extending member (126); said applicator component (10) comprises a receiving member (110); and said housing (124) further comprises a locking member (164, 166) that selectively traps said extending member (126) to said receiving member (110).
Claim 19
Dependent Claim
60 words
The instrument of claim 18 wherein: said extending member (126) comprises at least one pin; said receiving member (110) comprises at least one slot; said locking member (164, 166) comprises a slide which selectively extends into said slot (110) to secure said pin (126) to said slot; and biasing means (178) is provided to selectively move said slide (164, 166).
Claim 20
Dependent Claim
89 words
The instrument of claim 19 wherein: said slot (110) comprises an opening to accept said pin (126); and said slide (164, 166) is circumferentially offset from said pin (126); whereby insertion of said opening over said pin (126) displaces said slide and compresses said biasing means (178); and whereby rotation of said applicator component (10) advances said pin (126) further into said slot (110) and presents said opening in alignment with said slide (164, 166) to allow said slide to be biased into said opening to secure the connection.
Claim 21
Dependent Claim
36 words
The instrument of claim 20 wherein: said housing comprises a sliding cuff (170) to selectively remove said slide (164, 166) from said opening to facilitate disconnection of said actuator component (14) from said applicator component (10).
References Cited (Backward Citations)
US4712549A
Cited
US5100420A
Cited
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