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WO1995032012A1 - Canule ou trocart laparoscopique avec irrigation - Google Patents

Canule ou trocart laparoscopique avec irrigation Download PDF

Info

Publication number
WO1995032012A1
WO1995032012A1 PCT/US1995/006585 US9506585W WO9532012A1 WO 1995032012 A1 WO1995032012 A1 WO 1995032012A1 US 9506585 W US9506585 W US 9506585W WO 9532012 A1 WO9532012 A1 WO 9532012A1
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
fluid
trocar
passage
orifice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1995/006585
Other languages
English (en)
Inventor
Robert W. Bailey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/247,704 external-priority patent/US5458633A/en
Priority claimed from US08/421,704 external-priority patent/US6017333A/en
Application filed by Individual filed Critical Individual
Priority to AU26032/95A priority Critical patent/AU2603295A/en
Publication of WO1995032012A1 publication Critical patent/WO1995032012A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
    • A61B17/3421—Cannulas
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3474—Insufflating needles, e.g. Veress needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/70—Cleaning devices specially adapted for surgical instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems

Definitions

  • trocars typically consist of an outer cannula comprising a hollow tube through which an inner trocar is inserted.
  • the inner trocar consists usually of a solid rod-like member having a sharp distal end for penetrating the wall of the body cavity.
  • the trocar is inserted into a small incision in the body and the trocar is then placed in the incision and the inner trocar activated to penetrate the cavity wall.
  • the inner trocar is then removed and the outer trocar is utilized to insert surgical instruments into the cavity or to insert a laparoscope into the cavity to enable the surgeon to observe the operation of other devices inserted into the body cavity through additional trocars in the body.
  • the laparoscope consists of an optical member which can conduct the image
  • the laparoscope may also include a light source as well as other instruments required for the surgery to be performed.
  • One of the principal problems encountered in the use of such laparoscopes is that of clouding of the tip of the laparoscope from condensed moisture in the cavity or obscuring the end of the laparoscope by body fluids, blood or other organic material displaced by the surgical activity.
  • the clouding may also be caused because of the temperature difference between the ambient air in the operating room and the temperature of the body.
  • the temperature in the operating room is in the order of 20°C ( 68°F) while the temperature of the body cavity is in the order of 37°C (98.6°F).
  • U.S. Patent 5,225,001 discloses a device which incorporates as part of an endoscope an annular passage surrounding the optical fiber through which a cleansing fluid can be pumped using an electric actuator operating on a syringe
  • a trocar assembly having an inner
  • This inner trocar for penetrating a body cavity through a surface incision. This inner trocar is
  • outer trocar cannula contained in an outer trocar cannula.
  • the outer trocar cannula is provided with one or more fluid passages extending along the length of the outer surface of the cannul These fluid passages are connected to a source of cleansing fluid connected to the base of the trocar assembly. These fluid conduits terminate near the distal end of the
  • a fluid source is provided and is connected to the base of the trocar assembly.
  • a pump means for propelling cleansing fluid along the fluid passages and out of the transverse openings in the cannula.
  • openings may provide for the ejection of the fluid as a spray or forceful narrow stream.
  • the fluid may be ejected at different angles to increase the
  • cleansing fluid for example a saline solution
  • the observing instrument may be of a simpler design and likely of smaller diameter than if the cleansing apparatus was incorporated in the instrument. This feature can be easily incorporated into either reusable or disposable trocars without
  • Air can also be passed through the passages which can be used to dry the
  • Figure 1 is an isometric view of the invention.
  • Figure 2 is a plan view of the taken along line 2-2 of Figure 1 .
  • Figure 3 is a sectional view taken along line 3-3 of Figure 2.
  • Figure 4 is a sectional view taken along line 4-4 of Figure 2.
  • Figure 5 is a sectional view taken along line 5-5 of Figure 2.
  • Figure 6 is a sectional view taken along line 6-6 of figure 2.
  • Figure 7 is an isometric view of an alternate embodiment of the invention.
  • Figure 8 is an enlarged view of the distal end of the sectional view of Figure 6
  • Figure 9 is an enlarged view of the orifices shown in Figure 8.
  • FIG. 10 is another embodiment of the orifices shown in Figure 9. Detailed Description of the Invention and Best Mode for Carrying Out the Invention Referring now to Figure 1 , there is shown at 10, an isometric view of an cleansing trocar assembly according to the invention.
  • the trocar assembly consists o an inner trocar 17 for penetrating a body cavity through an incision and a trocar
  • the trocar cannula having a proximate end 14 and a distal end 16.
  • the trocar cannula is forme of a body 12 for supporting the inner trocar 17.
  • conduit 19 connected to a source of cleansing fluid, for example a saline solution. Adjacent the conduit 19 there is provided an actuator button 20. The function of th
  • a tube 18 Attached to the front surface 15 of the body 12 of the cannula shown is a tube 18 which extends from the front body surface 15 to the distal end of the cannula.
  • FIG. 2 there is shown a sectional view of the cannula of Figure 1 , taken along line 2-2 of Figure 1 .
  • the tube 18 is shown in cross section illustrating the central opening 21 of the cannula and the cleansing fluid
  • passages 23 formed on the outside wall of the tube 18 and spaced approximately equally around the periphery of the tube 18. These passages 23 are connected at
  • 22 to the distal end of the cannula may be approximately 1 to 2
  • Figure 3 taken along line 3-3 of Figure 2 illustrates more clearly the location o the orifices 22 in relationship to the fluid passages 23 and the tube 18.
  • Figure 4 sectional view taken along line 4-4 of Figure 2, there are shown the details of the
  • the cleansing fluid a cleansing fluid to the orifices 22.
  • the cleansing fluid a cleansing fluid to the orifices 22.
  • saline solution for example, enters the body 12 of the trocar through conduit 19.
  • check valve 24 the end of the conduit 19 inside the trocar body 12 is a check valve 24.
  • This valve may be of any known design of check valve such as a flapper design or similar
  • This valve is to prevent the cleansing fluid and other fluids and matter from within the body cavity of the patient from returning back through th cannula and into the source of cleansing fluid.
  • the cleansing fluid enters the trocar body 12 through valve 24 into a pumping chamber 27.
  • This chamber 27 is formed by a flexible bellows 29 supported on a spring assembly 26.
  • the lower surface of the button 20 which extends through the top surface of the body 12, extends to the
  • the bellows 29 is supported on spring assembly 28 at its lower end. As can be seen, when the button 20 is depressed, the bellows 29 and
  • FIG. 1 the trocar cannula taken along line 5-5 of Figure 2.
  • a fluid opening 32 which connects to the pumping chamber 27 of the bellows 29.
  • This opening 32 is connected by a passage 30 to a manifold 31 which, in turn, is connected to the fluid passages 23 of the cannula.
  • Figure 6, taken along line 6-6 of Figure 2 illustrate more clearly the fluid passages 23 in the tube 18.
  • Figure 8 is an enlarged cross sectional detail of the distal end of the cannula shown in section in Figure 3.
  • FIG. 7 illustrates an alternate embodiment of the invention shown in Figure 1
  • buttons 20 and its associated mechanism including the bellows and spring have been eliminated. In their place there is provided an external
  • Pump mechanism 34 connected to a fluid source by conduit 19.
  • This pump may be of any known type and is connected to a control device for causing the pump to supply irrigating fluid to the cannula.
  • the control device is illustrated with an electrical connection 36 in which there is provided a switch 38.
  • Switch 38 is connected to a power source 40 shown for example as a battery source.
  • the switch 38 may be actuated by a button connected to the body of the trocar for operation by
  • surgeon may be a foot operated switch operated by the surgeon or
  • the cleansed end of the laparoscope may be dried if desired by passing air through tube 19 instead of the liquid used for cleaning.
  • a separate air delivery system may be incorporated in the cannula.
  • Tube 50 (or other gas(es)) may be connected to tube 50.
  • Tube 50 is connected to an air valve 54 which is in turn connected to an air manifold 48.
  • cannula tube are connected to the air manifold 48.
  • the air, or other gas is directed toward the center of the cannula, to dry the end of the appropriately positioned cannula, through appropriate orifices.
  • the orifices for directing fluid toward the interior of the cannula tube are shown in Figures 8, 9 and 10.
  • the orifices 22 in Figures 8 and 9 direct the fluid, i.e. the cleaning liquid or the air used for drying perpendicular to the center line of the
  • the shape of the orifices will determine whether or not a concentrated forceful stream is ejected or whether a fine spray, in the case of a liquid, or a wide
  • the trocar assembly 10 is placed in contact with the patients' body at the point where entry is desired.
  • the inner trocar 17 is placed in a small
  • the laparoscope is at a temperature lower than that in the body cavity when it is inserte the moisture in the body cavity will condense on the optical fiber of the laparoscope
  • laparoscope is clouded with moisture or other matter, it is only necessary to withdraw the laparoscope one or two centimeters into the distal end of the cannula to place it adjacent to the orifices 22 of the cannula.
  • the fluid pumping mechanism is only necessary to withdraw the laparoscope one or two centimeters into the distal end of the cannula to place it adjacent to the orifices 22 of the cannula.
  • a cannula for a trocar which has the provision for cleaning the viewing end of an optical instrument easily and quickly without removing the instrument from the cannula. Providing the cleansing function in the cannula rather than in the optical instrument itself, a simpler

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Abstract

L'invention concerne un trocart comprenant un trocart (17) placé dans un orifice central d'une canule. Cette canule est munie d'au moins un passage séparé (23) parallèle au passage central. Le passage séparé (23) est relié à une source de fluide de nettoyage et à un dispositif de pompage du fluide à travers ce passage séparé. Le passage séparé se termine par un orifice (22) proche de l'extrémité distale de l'orifice central de la canule. Pendant l'utilisation, lorsque la canule permet l'accès à un laparoscope ou à un autre instrument de vision, l'extrémité de cet instrument de vision peut être rendue trouble par l'humidité ou d'autres débris. Dans ce cas, l'extrémité de l'instrument de vision peut être retirée dans l'extrémité distale de la canule adjacente aux orifices pour le fluide. Le dispositif de pompage est alors actionné et le fluide de nettoyage est refoulé au-dessus de l'extrémité de l'instrument, éliminant ainsi la substance gênante sans nécessiter le retrait de l'instrument de la canule. Il est également possible d'alimenter l'instrument avec de l'air de séchage, soit par le même passage soit par un passage séparé différent. L'orifice peut fournir un jet concentré ou une pulvérisation diffuse et peut être conçu pour délivrer le fluide au moyen d'un composant arrière.
PCT/US1995/006585 1994-05-24 1995-05-24 Canule ou trocart laparoscopique avec irrigation Ceased WO1995032012A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU26032/95A AU2603295A (en) 1994-05-24 1995-05-24 Irrigating laparoscopic cannula or trocar

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/247,704 US5458633A (en) 1994-05-24 1994-05-24 Irrigating laparoscopic cannula or trocar
US08/247,704 1994-05-24
US08/421,704 1995-04-13
US08/421,704 US6017333A (en) 1995-04-13 1995-04-13 Irrigating laparoscopic cannula

Publications (1)

Publication Number Publication Date
WO1995032012A1 true WO1995032012A1 (fr) 1995-11-30

Family

ID=26938849

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/006585 Ceased WO1995032012A1 (fr) 1994-05-24 1995-05-24 Canule ou trocart laparoscopique avec irrigation

Country Status (2)

Country Link
AU (1) AU2603295A (fr)
WO (1) WO1995032012A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2111808A3 (fr) * 2008-04-25 2010-06-23 Ethicon Endo-Surgery, Inc. Suppression de fluide d'un jet gazeux dans un trocart
EP1815807A4 (fr) * 2004-09-22 2014-02-26 Olympus Corp Dispositif d'echantillonnage de tissu organique
US8979738B2 (en) 2007-06-08 2015-03-17 Medeon Biosurgical, Inc. Devices and methods for removal of debris from the objective lens of an endoscope
WO2015105667A1 (fr) 2013-12-20 2015-07-16 Medeon Biosurgical, Inc. Modification de protection de lentille
US9241610B2 (en) 2009-12-08 2016-01-26 Medeon Biodesign, Inc. Devices and methods for removal of debris from the objective lens of an endoscope
US10307041B2 (en) 2007-06-08 2019-06-04 Medeon Biodesign, Inc. Lens cover modification

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1114268A (en) * 1913-10-14 1914-10-20 Charles Edmund Kells Method for surgically cleansing wounds and other surfaces.
US4270535A (en) * 1979-10-18 1981-06-02 Hospal Medical Corp. Double lumen catheters
US4596552A (en) * 1983-06-10 1986-06-24 Dlp Inc. Cardioplegia cannula
US5013296A (en) * 1989-09-21 1991-05-07 Research Medical, Inc. Antegrade cardioplegia cannula
US5219335A (en) * 1991-05-23 1993-06-15 Scimed Life Systems, Inc. Intravascular device such as introducer sheath or balloon catheter or the like and methods for use thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1114268A (en) * 1913-10-14 1914-10-20 Charles Edmund Kells Method for surgically cleansing wounds and other surfaces.
US4270535A (en) * 1979-10-18 1981-06-02 Hospal Medical Corp. Double lumen catheters
US4596552A (en) * 1983-06-10 1986-06-24 Dlp Inc. Cardioplegia cannula
US5013296A (en) * 1989-09-21 1991-05-07 Research Medical, Inc. Antegrade cardioplegia cannula
US5219335A (en) * 1991-05-23 1993-06-15 Scimed Life Systems, Inc. Intravascular device such as introducer sheath or balloon catheter or the like and methods for use thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1815807A4 (fr) * 2004-09-22 2014-02-26 Olympus Corp Dispositif d'echantillonnage de tissu organique
US8979738B2 (en) 2007-06-08 2015-03-17 Medeon Biosurgical, Inc. Devices and methods for removal of debris from the objective lens of an endoscope
US10307041B2 (en) 2007-06-08 2019-06-04 Medeon Biodesign, Inc. Lens cover modification
US10986982B2 (en) 2007-06-08 2021-04-27 Medeon Biodesign, Inc. Lens cover modification
EP2111808A3 (fr) * 2008-04-25 2010-06-23 Ethicon Endo-Surgery, Inc. Suppression de fluide d'un jet gazeux dans un trocart
US8690831B2 (en) 2008-04-25 2014-04-08 Ethicon Endo-Surgery, Inc. Gas jet fluid removal in a trocar
US9241610B2 (en) 2009-12-08 2016-01-26 Medeon Biodesign, Inc. Devices and methods for removal of debris from the objective lens of an endoscope
WO2015105667A1 (fr) 2013-12-20 2015-07-16 Medeon Biosurgical, Inc. Modification de protection de lentille

Also Published As

Publication number Publication date
AU2603295A (en) 1995-12-18

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