EP0537573A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Endoscopic surgical instrument for aspiration and irrigation
Assignee: United States Surgical Corp
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Filing: 1992-10-02
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Granted: —
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Expires: 2012-10-02
Abstract
Abstract An endoscopic surgical intrument 10 for aspiration and irrigation of a surgical site. The device includes at least one rotatable trumpet valve 14, 18 to provide for variable orientation of the device during use. Connection ports 16, 20 for irrigation fluid and a suction means are provided which communicate with a single lumen cannula 24 which transports both the irrigation fluid and the suction pressure to the surgical site. The single lumen cannula is provided with a sleeve means 26 to vary the pressure of the irrigation fluid to provide for high pressure application of the irrigation fluid to provide for high pressure application of the irrigation fluid to perform hydrodissection. A plurality of dissector tips 40 and a novel means 92, 96 of securing the tips to the single lumen cannula are also disclosed.
Inventors
- 👤 William J. Mccabe
- 👤 H. Jonathan Tovey
- 👤 Paul A. Matula
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3203; A61B17/02; A61B17/0218; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/774; A61B17/00234; A61B17/3209; A61B17/3211; A61B17/3213; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1482; A61B18/18; A61B18/20; A61B18/22; A61B18/24; A61B2017/0046; A61B2017/00464; A61B2017/320044; A61B17/34; A61B17/3417; A61B17/3421; A61B2017/3445; A61M1/74; A61M1/772
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
42 words
An endoscopic surgical instrument comprising: an elongate body portion having a first and second end; a handle mechanism at said first end and a coupling mechanism at said second end; and at least one tool mechanism detachably couplable to said coupling mechanism.
Claim 2
Dependent Claim
21 words
An instrument according to claim 1, wherein said coupling mechanism is positioned on said body portion remote from said handle mechanism.
Claim 3
Dependent Claim
26 words
An instrument according to claim 1 or 2 wherein said tool mechanism includes an operative portion and a coupling portion for coupling with said coupling mechanism.
Claim 4
Dependent Claim
49 words
An instrument according to claim 1, 2 or 3, wherein said body portion includes a central passageway extending along its length from said coupling mechanism and through said handle mechanism and said tool mechanism includes a central passageway in axial communication with said central passageway of said body portion.
Claim 5
Dependent Claim
29 words
An instrument according to any one of the preceding claims wherein said tool mechanism is selected from scalpels, knives, hydrodissectors, dissectors, blunt dissectors, spatulas, retractors, nozzles and electrocautery dissectors.
Claim 6
Dependent Claim
32 words
An instrument as claimed in any one of the preceding claims wherein the tool mechanism and the coupling mechanism couple through the reversible co-operation of complementary coupling formations on the respective mechanisms.
Claim 7
Dependent Claim
24 words
An instrument as claimed in any one of the preceding claims wherein the complementary coupling formations constitute a bayonet coupling (key slots and posts).
Claim 8
Dependent Claim
23 words
An instrument according to claim 6 or 7 wherein the complementary coupling formations co-operate through snap-fit engagement of a detent and a recess.
Claim 9
Dependent Claim
41 words
An instrument according to any one of the preceding claims, wherein said handle mechanism includes means for its connection to a source of irrigation and a source of suction, the connection means communicating with a central passageway within said body portion.
Claim 10
Dependent Claim
100 words
A surgical device for aspiration and irrigation of a surgical site, comprising: first connection means for a source of irrigation fluid; means for actuating said first connection means; second connection means for an aspirating source; means for actuating said second means; and a single lumen cannula means adapted to communicate with said aspirating source and said fluid source through said first and second connection means at a proximal end of said cannula means, said cannula means being positionable adjacent said surgical site at a distal end thereof to selectively transport said fluid and an aspirating force to said surgical site.
Claim 11
Dependent Claim
26 words
A device according to claim 10 wherein at least one of said actuating means comprises trumpet valve means, said trumpet valve means including said connection means.
Claim 12
Dependent Claim
24 words
A device according to claim 11 wherein said trumpet valve means includes rotatable connection means rotatable about a central axis of said trumpet valve.
Claim 13
Independent Claim
51 words
A device according to any one of claims 10, 11 and 12 wherein said first and second connection means and said cannula means communicate with a body portion of said surgical device, said body portion comprising a mixing chamber for communicating said fluid and said aspirating force with said cannula means.
Claim 14
Independent Claim
53 words
A device according to any one of claims 10 to 13 further comprising connection means for a source of electrical current or connection means for an optical fiber laser means, said connection means being coupled to said cannula means and being substantially aligned with a longitudinal axis of said single lumen cannula means.
Claim 15
Dependent Claim
39 words
A device according to claim 14, wherein said cannula means includes a detachable tool device for performing electro-cauterization and dissection procedures and said detachable tool device includes a central passageway which communicates with said lumen of said cannula means.
Claim 16
Independent Claim
43 words
A device according to any one of claims 10 to 15, further comprising a sleeve member concentrically positioned about said cannula means and in substantial contact with said cannula means along its length, said sleeve member being longitudinally slidable over said cannula means.
Claim 17
Dependent Claim
47 words
A device according to claim 16, wherein said cannula means includes a plurality of apertures at a distal end thereof and a nozzle tip, said sleeve member being slidable to overlay said apertures to vary the pressure of said fluid source exiting said nozzle for hydro-dissecting tissue.
Claim 18
Independent Claim
26 words
A device according to any one of claims 10 to 16, which is itself an instrument as claimed in any one of claims 1 to 9.
Claim 19
Dependent Claim
140 words
A surgical device for hydrodissection of tissue at a surgical site, comprising; connection means for a source of irrigation fluid; means for actuating said first connection means; a single lumen cannula means adapted to communicate with said fluid source through said connection means at a proximal end of said cannula means, said cannula means having a plurality of apertures at a distal end thereof and being positionable adjacent said surgical site to transport said fluid under pressure to said surgical site; and a sleeve member concentrically positioned about said cannula means and in substantial contact with said cannula means from said proximal end to said distal end, said sleeve member being longitudinally slidable to overlay at least one of said plurality of apertures in said distal end of said cannula means to vary the pressure of said fluid exiting therefrom.
Claim 20
Dependent Claim
23 words
A surgical device according to claim 19 further comprising the specific subject matter of any one or more of claims 1 to 18.
Claim 21
Dependent Claim
35 words
A surgical device according to claim 19 or 20 further comprising a detachable nozzle tip member positioned at a distal end of said cannula means in alignment with a longitudinal axis of said cannula means.
References Cited (Backward Citations)
No citation records indexed.
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