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US5368569A Expired / Lapsed US ⏱️ 0.0 years remaining

Irrigation system for preventing contamination and reducing the risk of patient hypothermia

Assignee: Sanese Medical Corp
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Filing: 1993-08-18
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Granted: 1994-11-29
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Expires: 2013-08-18
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Abstract

Abstract The invention concerns a surgical apparatus for irrigating an operative site during endoscopic surgery. The apparatus comprises a reservoir of irrigation fluid contained within an air actuated pouch, a pump for inflating the pouch so that the reservoir is compressed, pressure control means, a microprocessor for operating the system, heating panels contained within the pouch for providing heated irrigation fluid, and a nozzle and tube for delivering the irrigation fluid to an operative site. The apparatus also provides a stick fitting for attaching tubing to the fluid reservoir. In addition to the stick fitting, the apparatus provides a locking receiver system for insuring that the stick fitting will not disengage during use.

Inventors

  • 👤 Christopher N. Sanese

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:42
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0237; A61M3/0204; A61M3/0208; A61M3/0216; A61M5/00; A61M5/14; A61M5/142; A61M5/145; A61M5/148; A61M5/1483; A61M2205/00; A61M2205/36; A61M2205/3653; A61M3/0245; A61M5/44; A61M5/445; Y; Y10; Y10S; Y10S128/00; Y10S128/12

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 72 words
A surgical apparatus, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least bottom and side surfaces of a disposable flexible fluid reservoir; said pouch further comprising a second inflatable cavity exterior to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity.
Claim 2
Dependent Claim 72 words
A surgical apparatus, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least bottom and side surfaces of a disposable flexible fluid reservoir; said pouch further comprising a second inflatable cavity exterior to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity.
Claim 3
Dependent Claim 28 words
The apparatus of claim 1 wherein said second cavity further comprises a plurality of chambers, said chambers being interconnected by channels for even inflation of said second cavity.
Claim 4
Dependent Claim 27 words
The apparatus of claim 2 further comprising a support bag for containing said reservoir, said support bag containing said reservoir is insertable into said pouch inside cavity.
Claim 5
Dependent Claim 17 words
The apparatus of claim 1, further comprising a heater located in said pouch for heating said reservoir.
Claim 6
Dependent Claim 20 words
The apparatus of claim 4 wherein said heater comprises at least one heating panel located within said pouch inside cavity.
Claim 7
Dependent Claim 13 words
The apparatus of claim 5 wherein said heater comprises two said heating panels.
Claim 8
Dependent Claim 22 words
The apparatus of claim 5 wherein said at least one heating panel being attached to a surface of said pouch inside cavity.
Claim 9
Dependent Claim 14 words
The apparatus of claim 5 wherein said heater being attached to said second cavity.
Claim 10
Dependent Claim 18 words
The apparatus of claim 5 wherein said heater being attached to an interior surface of said support bag.
Claim 11
Dependent Claim 99 words
A surgical apparatus for preventing contamination of irrigation fluid during surgery, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least bottom and side surfaces of a disposable flexible fluid reservoir, and a second inflatable cavity external to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity; a pump for inflating said second cavity; pressure control means for regulating said pressurized fluid; and a heater for heating said fluid.
Claim 12
Dependent Claim 99 words
A surgical apparatus for preventing contamination of irrigation fluid during surgery, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least bottom and side surfaces of a disposable flexible fluid reservoir, and a second inflatable cavity external to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity; a pump for inflating said second cavity; pressure control means for regulating said pressurized fluid; and a heater for heating said fluid.
Claim 13
Dependent Claim 29 words
The surgical apparatus of claim 10 wherein said second cavity further comprises a plurality of chambers, said chambers being interconnected by channels for even inflation of said second cavity.
Claim 14
Dependent Claim 26 words
The surgical apparatus of claim 10 further comprising a support bag for containing said reservoir, said support bag containing said reservoir is insertable into said pouch.
Claim 15
Dependent Claim 21 words
The surgical apparatus of claim 10 wherein said heater comprises at least one heating panel located within said pouch inside cavity.
Claim 16
Dependent Claim 29 words
The surgical apparatus of claim 10 further comprising a nozzle and a flexible tube attached to said nozzle for discharging said fluid from said reservoir to the surgical site.
Claim 17
Dependent Claim 57 words
The surgical apparatus of claim 14 wherein said pouch further comprises: a locking receiver for preventing said flexible tube from disengaging said fluid reservoir; and said flexible tube comprises a piercing pin located at an end of said tube for penetrating said reservoir and locking lugs located adjacent said piercing pin for fitting into said locking receiver.
Claim 18
Dependent Claim 15 words
The surgical apparatus of claim 10 wherein said pressure control means comprises a solenoid valve.
Claim 19
Dependent Claim 30 words
The surgical apparatus of claim 13 wherein said at least one heating panel further comprises thermistors for maintaining said fluid at temperature between about 85° F. and about 115° F.
Claim 20
Dependent Claim 20 words
The surgical apparatus of claim 10 wherein said pump operates at a noise level of less than about 40 dBA.
Claim 21
Dependent Claim 29 words
The surgical apparatus of claim 18 further comprising a nozzle and a flexible tube attached to said nozzle for discharging said fluid from said reservoir to the surgical site.
Claim 22
Dependent Claim 57 words
The surgical apparatus of claim 19 wherein said pouch further comprises: a locking receiver for preventing said flexible tube from disengaging said fluid reservoir; and said flexible tube comprises a piercing pin located at an end of said tube for penetrating said reservoir and locking lugs located adjacent said piercing pin for fitting into said locking receiver.
Claim 23
Dependent Claim 190 words
A surgical apparatus for reducing the risk patient hypothermia and contamination of irrigation fluid during surgery, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least the bottom and side surfaces of a disposable flexible fluid reservoir, said reservoir having a stick fitting secured to said bottom through which said fluid is discharged, a second inflatable cavity external to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity, said second cavity having a plurality of chambers, said chambers being interconnected by channels for even inflation of said second cavity, a heater having at least one heating panel within said pouch inside cavity for heating said fluid; a support bag for containing said reservoir, said support bag being insertable into said pouch; a pump for inflating said second cavity; a solenoid valve for regulating said pressurized fluid; said at least one heating panel further comprising thermistors for maintaining said fluid at a temperature between about 85° F. and about 115° F.
Claim 24
Dependent Claim 190 words
A surgical apparatus for reducing the risk patient hypothermia and contamination of irrigation fluid during surgery, comprising: a flexible pouch having a substantially enclosed inside cavity defined by at least one flexible wall for containing and substantially fully enclosing at least the bottom and side surfaces of a disposable flexible fluid reservoir, said reservoir having a stick fitting secured to said bottom through which said fluid is discharged, a second inflatable cavity external to said inside cavity for receiving a pressurized fluid and applying a compressive force against said at least one flexible wall of said inside cavity, said second cavity having a plurality of chambers, said chambers being interconnected by channels for even inflation of said second cavity, a heater having at least one heating panel within said pouch inside cavity for heating said fluid; a support bag for containing said reservoir, said support bag being insertable into said pouch; a pump for inflating said second cavity; a solenoid valve for regulating said pressurized fluid; said at least one heating panel further comprising thermistors for maintaining said fluid at a temperature between about 85° F. and about 115° F.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-11-28 1998-05-30 1998-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-11-28 2002-05-30 2002-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-11-28 2006-05-30 2006-11-29 $7700.00 Window Closed / Lapsed

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