Tool for laparoscopic surgery

• US 5,334,140 A
• Filed: 01/12/1993
• Issued: 08/02/1994
• Est. Priority Date: 05/25/1990
• Status: Expired due to Term

• Current Assignee: Edward H. Phillips
• Original Assignee: Edward H. Phillips
• Inventors: Phillips, Edward H.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US08/003,505
• Time in Patent Office: 567 Days
• Field of Search: 604/21, 604/27, 604/33-35, 604/39, 604/43, 604/249, 604/275, 604/902, 606/2, 606/10, 606/13, 606/15, 606/16, 606/27-31, 606/40, 606/41, 606/45, 606/46, 606/47, 606/49, 433/80, 433/82, 433/84, 433/85, 433/95, 433/100
• US Class Current: 604/35
• CPC Class Codes: A61B 17/22 Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for dilators A61M29/00
• CPC Class Codes: A61B 18/1482 having a long rigid shaft for accessing the inner body transcutaneously in minimal invasive surgery, e.g. laparoscopy
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 2017/00464 for use with different instruments
• CPC Class Codes: A61B 2017/3445 used as instrument channel for multiple instruments
• CPC Class Codes: A61B 2018/00196 reciprocating lengthwise
• CPC Class Codes: A61B 2018/2211 Plurality of fibres
• CPC Class Codes: A61M 1/7413 by changing the cross-section of the line
• CPC Class Codes: A61M 1/772 operating alternately
• CPC Class Codes: A61M 1/774 Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
• CPC Class Codes: A61M 1/79 Filters for solid matter specially adapted for dental use A61C17/065
• CPC Class Codes: Y10S 604/902 Suction wands

Abstract

The invention relates to a instrument for laparoscopic surgery which permits the operating surgeon to irrigate or suction the operative area while performing electrocautery or laser hemostasis and dissection of body tissue with the same instrument.

The invention also relates to a laparoscopic tool for evacuating free stones or blood clots from the operating area which are to large to be suctioned from the body cavity or to remove gallstones from a gallbladder which has been distended by stones and cannot be retrieved through an umbillical sheath.

Claims

1. An instrument for laparoscopic evacuation and collection of particulate matter from a body cavity, comprising:

(a) a housing having a proximate end and a distal end and having an outlet port for the passage of evacuated fluid and a first conduit communicating with said outlet port, said housing further having an inlet port for the passage of irrigating fluid and a second conduit communicating with said inlet port;

(b) a third conduit carried by said housing having a longitudinal axis and a proximate end and a distal end with an opening adjacent said distal end, said third conduit extending in an axial direction from said distal end of said housing and having a collection chamber for collecting said particulate matter adjacent said distal end of said third conduit where said collection chamber communicates with said opening and where said third conduit has an axially extending inner conduit communicating with said first and second conduits and said collection chamber, said inner conduit having a single flow path therethrough to permit the passage of irrigating fluid through said opening and into said body cavity or to permit the passage of said evacuated fluid suctioned from said body cavity through said opening, and where said third conduit has an engagement lip extending radially at said distal end of said third conduit forming a terminus and axial boundary of said opening, said collection chamber having a greater cross-sectional area than said inner conduit;

(c) valve means carried by said housing responsive to external force in a normally closed position to preclude the flow of irrigating or evacuated fluid for selectively permitting the passage of irrigating fluid through said inlet port and into said inner conduit or for selectively permitting passage of evacuated fluid or said particulate matter through said opening into said collection chamber.

2. The instrument recited in claim 1 wherein said valve means comprises a pair of push valves respectively associated with said first conduit and said second conduit and a bias means bearing against said push valves for biasing said push valves in a normally closed position to preclude the flow of said irrigating fluid or said evacuated fluid in said first and second conduits respectively where said bias means is responsive to external force for respectively opening said valves.

3. The instrument recited in claim 2 wherein each said push valve comprises a valve stem having an annular groove located on the periphery of said valve stem such that upon alignment of said annular groove respectively with said outlet port or said inlet port said irrigating fluid or said evacuated fluid is permitted to flow through said first conduit or said second conduit.

4. An instrument for laparoscopic evacuation and collection of particulate matter from a body cavity, comprising:

(a) a housing having a proximate end and a distal end, an outlet port for the passage of evacuated fluid and a first conduit communicating with said outlet port, said housing further having an inlet port for the passage of irrigating fluid and a second conduit communicating with said inlet port;

(b) a tubular member carried by said housing having a longitudinal axis and a proximate end and a distal end and extending in an axial distal direction from said distal end of said housing, said tubular member having an orifice at said distal end and an inner conduit extending axially therethrough and communicating with said orifice, said inner conduit having a single flow path therethrough and communicating with said first conduit and said second conduit to permit the passage of said irrigating fluid or said evacuated fluid;

(c) a shaft member having a longitudinal axis and a distal end and a proximate end and an axially extending cavity therethrough communicating with said orifice where said shaft member is telescopically and slideably mounted to said tubular member for axial displacement relative to said tubular member, said tubular member extending at least in part in said cavity and said shaft member having an opening adjacent said distal end of said shaft member where said opening communicates with said cavity, and where said distal end of said tubular member is radially surrounded by said cavity and in fixed spaced relationship with said distal end of said housing, said cavity intermediate said distal end of said tubular member and said opening defining a collection region for collecting said particular matter where the volume of said collection region may be varied by axial displacement of said shaft member, said shaft member having an engagement lip extending radially at said distal end of said shaft member forming a terminus and axial boundary of said opening; and

(d) valve means carried by said housing responsible to external force in a normally closed position to preclude the flow of irrigating or evacuated fluid for selectively permitting the passage of irrigating fluid through said inlet port and into said inner conduit or for selectively permitting the passage of evacuate fluid or said particulate matter through said opening into said collection chamber.

5. The instrument recited in claim 4 where said valve means comprises a pair of push valves respectively associated with said first conduit and said second conduit and a bias means bearing against said push valves for biasing said push valves in a normally closed position to preclude the flow of said irrigating fluid or said evacuated fluid in said first and second conduits respectively where said bias means is responsive to external force for respectively opening said valves.

6. The instrument recited in claim 5 where in each said push valve comprises a valve stem having an annular groove located on the periphery of said valve stem such that upon alignment of said annular groove respectively with said outlet port or said inlet port said irrigating fluid or said evacuated fluid is permitted to flow through said first conduit or said second conduit.

7. An instrument for laparoscopic evacuation and collection of particulate matter from a body cavity, comprising:

(a) a housing having a proximate end and a distal end, an outlet port for the passage of evacuated fluid and a first conduit communicating with said outlet port, said housing further having an inlet port for the passage of irrigating fluid and a second conduit communicating with said inlet port;

(b) a third conduit carried by said housing having a longitudinal axis and a proximate end and a distal end where said third conduit extends in an axial distal direction from said distal end of said housing where said third conduit communicates with said first and second conduits and said distal end of said third conduit has an opening therein to permit the passage of irrigating fluid into said body cavity or to permit the passage of said evacuated fluid or said particulate matter suctioned from said body cavity into said third conduit, where said third conduit comprises an inner axially extending conduit and an outer axially extending conduit, said inner conduit having a proximate end and a distal end where said proximate end of said inner conduit is carried by said housing and where said distal end of said inner conduit has an orifice communicating with said outlet port and said inlet port to permit passage of said evacuated fluid or said irrigating fluid through said inner conduit and where said outer conduit has an axially extending cavity therethrough and an opening adjacent said distal end of said outer conduit communicating with said cavity, said inner conduit extending at least in part in said cavity where said orifice communicates with said cavity and said distal end of said inner conduit is radially surrounded by said cavity and in fixed space relationship with said distal end of said housing, said cavity intermediate said distal end of said inner conduit and said opening defining a collection region for collection of said particulate matter and where said outer conduit is slideably and telescopically mounted to said inner conduit to permit relative axial movement relative to said inner conduit whereby the volume of said collection region may be varied by axial displacement of said outer conduit, said outer conduit having an engagement lip extending radially at said distal end of said outer conduit forming a terminus of said collection region and an axial boundary of said opening.

8. The instrument recited in claim 7 further comprising a pair of push valves carried by said housing respectively associated with said first conduit and said second conduit and a bias means bearing against said push valves for biasing said push valves in a normally closed position to preclude the flow of said irrigating fluid or said evacuated fluid in said first and second conduits respectively where said bias means is responsive to external force for respectively opening said valves.

9. The instrument recited in claim 8 wherein each said push valve comprises a valve stem having an annular groove located on the periphery of said valve stem such that upon alignment of said annular groove respectively with said outlet port or said inlet port said irrigating fluid or said evacuated fluid is permitted to flow through said first conduit or said second conduit.