WO2001035814A1 - Dispositif de stabilisation d'organe comportant une surface de prehension non vulnerante et procedes associes - Google Patents

Dispositif de stabilisation d'organe comportant une surface de prehension non vulnerante et procedes associes Download PDF

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Publication number
WO2001035814A1
WO2001035814A1 PCT/US2000/042159 US0042159W WO0135814A1 WO 2001035814 A1 WO2001035814 A1 WO 2001035814A1 US 0042159 W US0042159 W US 0042159W WO 0135814 A1 WO0135814 A1 WO 0135814A1
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WO
WIPO (PCT)
Prior art keywords
organ
stabilizer
grasping
stabilizer device
foot base
Prior art date
Application number
PCT/US2000/042159
Other languages
English (en)
Inventor
K. Mosaddeq Hossain
Robert Banik
Original Assignee
Pilling Weck Surgical
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
Application filed by Pilling Weck Surgical filed Critical Pilling Weck Surgical
Priority to AU30823/01A priority Critical patent/AU3082301A/en
Publication of WO2001035814A1 publication Critical patent/WO2001035814A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A61B2017/00464—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable for use with different instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
    • A61B2017/0237—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for heart surgery
    • A61B2017/0243—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for heart surgery for immobilizing local areas of the heart, e.g. while it beats
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/282—Jaws
    • A61B2017/2825—Inserts of different material in jaws
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28—Surgical forceps
    • A61B17/2812—Surgical forceps with a single pivotal connection
    • A61B17/282—Jaws
    • A61B2017/2829—Jaws with a removable cover
    • 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
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers

Definitions

  • the present invention relates to organ stabilization devices, and more particularly to devices which are suitable for immobilization of the heart during surgical procedures involving the thoracic cavity.
  • Devices of the present invention comprise a stabilizer foot base and a grasping element, e.g., in the form of a pad, attached to a surface thereof, which non-traumatically secures and stabilizes the organ during such procedures.
  • Such procedures may involve open incision access to a body cavity, e.g., open heart surgery.
  • such procedures may involve laparoscopic or endoscopic techniques such as those used in many intra-abdominal and gynecological procedures.
  • Open heart surgery has emerged as a commonplace procedure to diagnose and treat various coronary diseases and other conditions involving the heart. As part of such procedures, it is often necessary to gain access to a patient's heart, blood vessels and associated tissue via an open incision into the thoracic cavity.
  • Access to the patient's thoracic cavity is typically achieved by making a large longitudinal incision in the chest. This procedure, known as a median sternotomy, requires a saw or other cutting instrument to cut the sternum and allow the two opposing halves of the rib cages to be spread apart. See e.g., U.S. Patent No. 5,025,779.
  • U.S. Patent no. 5,503,617 reports a retractor configured to be held by the surgeon for use in vascular or cardiac surgery to retract and hold ribs apart to allow access to the heart or a lung through an operating window.
  • Cardioplegic fluid such as potassium chloride (KC1)
  • KC1 potassium chloride
  • cardioplegic fluid may be delivered to the blood vessels of the heart to paralyze the myocardium. See e.g., WO 95/15715 for its disclosure of a procedure in which cardioplegic fluid is infused into the myocardium through the coronary arteries by a catheter inserted into the ascending aorta.
  • cardioplegic fluid may be infused through the coronary veins in a retrograde manner at the patient's neck.
  • organ stabilizer devices have been employed for performing such surgical procedures, e.g., to secure one or more of a patient's organs or other tissue so the physician can carry out the desired surgery.
  • prior organ stabilization devices have been shown to puncture, bruise or otherwise cause long-term trauma to the manipulated tissue. Such injury complicates and prolongs a patient's recovery and can impair the function of the damaged tissue. In some cases, the trauma also can substantially complicate the surgery in which it occurs. Indeed, if the trauma is severe, an additional procedure may be required to repair the damaged tissue.
  • Tissue that must be manipulated during a surgical procedure can have relatively widely varying surface characteristics and can be highly slippery and difficult to grasp or move.
  • a need exists for a new non-traumatic organ stabilization device i.e. a device that does not generally cause significant (long-term) trauma to the organ, particularly the heart and its associated vessels and tissues, during surgical procedures. It would be further desirable to develop such a device where the device provides good gripping action to a variety of organs and tissue types with only minimal grasping pressure.
  • the present invention provides an improved organ stabilizer device that exhibits enhanced gripping of a variety of types of organs and bodily tissue at minimal grasping pressures.
  • the device is particularly well suited for use in open incision procedures.
  • devices of the present invention also may be adapted for use in laparoscopic and endoscopic procedures.
  • Devices of the present invention preferably include a stabilizer foot base and replaceable grasping elements, e.g., in the form of a pad, that incorporate a surface gripping material that holds well in a wet environment with respect to a target surface such as, but not limited to living organs and bodily tissue.
  • Some aspects of the present invention involve the discovery and use of gripping materials having a wide variety of surface characteristics which have an unexpected, enhanced capability to grip and manipulate living organs and tissues.
  • preferred gripping materials provide good holding power and the ability to manipulate a variety of organs, blood vessels and tissues, such as those associated with the heart, stomach, intestines, gall bladder, ovaries, vascular system and lungs.
  • organs, blood vessels and tissues such as those associated with the heart, stomach, intestines, gall bladder, ovaries, vascular system and lungs.
  • Several of those types of tissue in many cases have been difficult to manipulate, stabilize and/or immobilize with prior organ stabilization devices without damaging the target organ, tissue, etc.
  • the stabilizer foot base is configured to present a defined opening for overlying an operative site on a patient.
  • the base of the stabilizer may be circular, oval, or rectangular in shape. As will be appreciated by those skilled in the art, various configurations may be utilized depending upon the particular operative site of interest.
  • the grasping element which incorporates the gripping material is attached to an outer surface of the stabilizer foot base.
  • Such configuration enables grasping a targeted surface such as a living organ or section of tissue, and facilitates secure and non-traumatic attachment of the organ or tissue to the stabilizer foot base.
  • the grasping element may be in the form of a removable (disposable) pad or a membrane which is attached to the stabilizer foot base using a clip that snaps into the base.
  • the grasping element may be attached directly to the stabilizer foot using an adhesive, or via thermobonding using silicone.
  • the gripping material is preferably substantially smooth and at least partially covers or is otherwise incorporated into the exposed surface of the stabilizer foot base.
  • the gripping material provides enhanced holding power or gripping ability to the targeted surface relative to the holding power provided by the organ stabilizer device in the absence of the gripping material.
  • such enhanced holding power can be verified by testing the ability of an organ stabilizer device of the invention (that includes the gripping material) to grip an organ, such as the heart, or other bodily tissue at a particular grasping pressure, relative to the ability of the same grasping device but without the gripping material to grip to the same organ/ tissue at the same grasping pressure.
  • an organ stabilizer device of the invention that includes the gripping material
  • Enhanced holding power would, for example, enable grasping of the organ or tissue without slippage whereas slippage, of the tissue would be seen with the device in the absence of the gripping material.
  • Devices of the invention are preferably reusable, e.g., the grasping element is removably attached to the stabilizer foot base. In that way, the device can be used in multiple surgical procedures merely with replacement of the grasping element.
  • the grasping elements will be supplied separately from the stabilizer device, with the elements preferably packaged in sterile condition.
  • the device itself (without grasping elements) can be cleaned and a new, sterile set of elements, e.g., pads, applied prior to each use of the device.
  • a reusable system provides substantial cost savings and reduction in waste relative to an organ stabilizer device that is entirely disposed of after a single use.
  • the present invention provides an organ stabilizer device of the type described herein wherein the grasping element is not readily removable. Rather, the grasping element is "permanently affixed" and is not removed before or after typical use of the device.
  • These devices may be disposable, i.e.
  • the entire device is discarded after a single use, or the devices may be reusable wherein the entire device is cleaned and sterilized after use in a surgical procedure.
  • the elements are "permanently affixed", it is intended that the elements are not readily removable during normal use of the device.
  • organ stabilizer devices of the present invention are non-traumatic. That is, the devices generally do not cause substantial trauma of manipulated organs and/or tissue (e.g., bruising, tearing, etc.).
  • the invention further provides methods for carrying out various surgical procedures, including open incision, laparoscopic and endoscopic surgeries, comprising use of an organ stabilizer device of the present invention.
  • FIGS. 1A-1D are perspective side views of a partially disassembled organ stabilizer device of the present invention wherein the method of attachment of the grasping element is via clips;
  • FIG. 1A shows the stabilizer foot base;
  • FIG. IB shows the grasping element (disposable pads) attached to a lower surface of the base;
  • FIG. IC is an assembled view with the grasping element releasably attached to the organ stabilizer device using clips; and
  • FIG. ID is a partial sectional view thereof.
  • FIGS. 2A-2C are perspective side views of three alternate preferred configurations of an organ stabilizer device of the present invention wherein the method of attachment of the grasping element is via an adhesive; FIG. 2D is a partial sectional view of such a device.
  • FIGS. 3A-3C are top views of an alternate preferred embodiment of the organ stabilizer device of present invention (without the grasping elements attached) which additionally is capable of opening/retracting; the device is shown in a closed position (FIG. 3 A) and an open position (FIG. 3B) with a separate view of the pin assembly (FIG. 3C) which facilitates such opening/retracting.
  • FIG. 4 shows a top view of an alternate configuration ("U-shape") of an organ stabilizer device of the present invention (without the grasping elements attached).
  • FIG. 5 shows a top view of a variation of the U-shape configuration of FIG. 4 in an alternate preferred embodiment of the present invention.
  • FIGS. 6A-6B show top views of yet another configuration of an organ stabilizer device of the present invention (without the grasping elements attached) which further comprises a cup portion.
  • FIGS. 1A-1D show an organ stabilizer device 10 of the present invention in assembled and partially disassembled form, wherein the method of attachment of the grasping element to the stabilizer foot base is via a plurality of clips.
  • FIG. 1A shows the stabilizer foot base 11, preferably made of stainless steel, having an upper surface 11' and a lower surface 11".
  • stabilizer foot base 11 further comprises an elongate member 12.
  • Elongate member 12 may be formed from a variety of non-reactive, polymeric materials, e.g., polypropylene, and is suitably a hollow tube that may be used alone or in conjunction with an ancilliary device, to position or otherwise manipulate the organ stabilizer, e.g., via a central pivot point as discussed below. Other mechanisms to position and manipulate the organ stabilizer also could be employed as will be appreciated by those skilled in the art.
  • FIG. IB shows the grasping element in the form of a disposable pad 13 attached to the lower surface 11" of stabilizer foot base 11.
  • FIG. IC is an assembled view of a preferred embodiment of the organ stabilizer device 10 with the grasping element 13 releasably attached to the stabilizer foot base 11 via clips 14 (shown in FIG. ID). As shown, clips 14 extend upward through a plurality of defined apertures 15 in the stabilizer foot base 11 and securely maintain the grasping element 13.
  • FIGS. 2 A-2D three alternate preferred configurations of an organ stabilizer device of the present invention are shown wherein the method of attachment of the grasping element is via an adhesive.
  • FIG. 2 A shows an organ stabilizer device of the present invention 20 which comprises a circular stabilizer foot base 21, with grasping element 13 attached to a lower surface thereof.
  • FIG. 2B shows an organ stabilizer device of the present invention 30 which comprises a rectangular stabilizer foot base 31, again with grasping element 13 attached to a lower surface thereof.
  • FIG. 2C shows an organ stabilizer device of the present invention 40 which comprises a U-shaped stabilizer foot base 41, also with grasping element 13 attached to a lower surface thereof.
  • FIG. 2D is a partial sectional view, applicable to each of the devices shown in FIGS. 2A-2C, illustrating grasping element 13 attached to the respective stabilizer foot base, e.g., base 41, at a lower surface thereof via an adhesive 42.
  • the stabilizer foot base 50 is shown to include a pair of arms 16 and 17 that can move, alone or in combination, with respect to each other to secure and grasp a targeted object.
  • arms 16 and 17 can each move in opposed directions from a center pivot point 18 via a pin assembly 19.
  • arms 16 and 17 extend or open to an angle of at least about 20° to 60° with respect to one another.
  • a single action system also may be suitable, i.e. where one of arms 16 and 17 remains stationary and the other arm moves toward and away from the stationary arm. Also, rather than dual or single action movement from a pivot point, other configurations of arms 16 and 17 will be suitable, e.g., the entire length of the arms could move laterally with respect to point 18.
  • the stabilizer foot base may be used.
  • the U-shaped stabilizer foot base is shown in FIG. 4 (device 60, without pin assembly) and FIG. 5 (device 70, with pin assembly 18).
  • the useable length of each the side arms is between about 1 to about 2 inches, more preferably about 1.40 inches to about 1.70 inches.
  • the open area defined by the arms is preferably between about 0.40 inches to about 0.60 inches, and more preferably between about 0.45 inches to about 0.50 inches.
  • the overall diameter of the device is preferably between about 0.90 inches to 1.20 inches, more preferably about 0.95 to 1.10 inches.
  • FIG. 6 shows yet another variation of the U-shaped configuration. Specifically, stabilizer foot base 80 is shown to further include cup 81.
  • grasping elements or pads are then shaped to accommodate such configurations.
  • the grasping elements may comprise topography to facilitate grasping such as a series of raised bumps, multiple ribs, one or more raised lips, or a relatively smooth surface.
  • Such non-ribbed grasping elements may be preferable for manipulations of particularly delicate organs such as the heart, the liver or lung.
  • the grasping elements are of a size sufficient to overlap or cover the stabilizer foot arms when attached thereto so that no metal grasping element surfaces are exposed that could potentially pinch or otherwise cause trauma to tissue.
  • the grasping elements preferably will be white or other bright color for easy visibility and will be radiopaque to enable ready identification and location, e.g., if an element inadvertently remains in a patient's body after surgery is completed.
  • grasping elements are formed of relatively soft materials to avoid bruising or other trauma to manipulated tissue during use of the device.
  • a rubber or thermoplastic elastomeric material is particularly preferred, especially the material sold under the tradename of DYNAFLEX D-series (styrene-butadiene elastomer sold by GLS Co.). Also suitable will be material sold under the name of DYNAFLEX G- series (styrene-ethylene/butylene-styrene copolymer sold by GLS Co.).
  • Other thermoplastic elastomers also will be suitable including C-flex, SANPREN and the like. Additional acceptable materials for forming the grasping elements will be silicones, latex and other man-made rubber materials.
  • grasping elements incorporate a gripping material on its exposed surface.
  • the gripping material may be a separate material that at least partially covers or encases one or both of the grasping elements.
  • the gripping material also may be an integral material of construction of the grasping element, or the preformed grasping element may be subjected to a surface modification treatment to provide the desired gripping properties.
  • the gripping material covers or is incorporated into the element so that the gripping material is present on a sufficient amount of the exposed surface of a grasping element to provide the desired holding effect.
  • the gripping material covers or is incorporated into the element so that the gripping material is present on at least about 50 or 70 percent or more of the entire exposed surface of a grasping element, or even more preferably, the gripping material covers or otherwise is incorporated into essentially or completely the entire exposed surface of an element.
  • the exposed surface of a grasping element is the surface not contacting or otherwise abutting the stabilizer foot base of the organ stabilizer device.
  • the gripping material may be affixed or otherwise incorporated into the grasping elements by any of a number of methods.
  • the gripping material may be directly thermobonded to the grasping elements, particularly where the material and elements have similar melt properties.
  • the gripping material also may be directly solvent bonded to the grasping elements.
  • the material may be affixed to elements by a suitable adhesive.
  • the gripping material also may be mechanically attached to the grasping elements e.g. by interweaving of the material through the grasping element/arm releasable attachment mechanism as discussed below.
  • the material may be directly integrated into a grasping element, e.g., a grasping pad element may be formed from a polymer mixture that includes a polymeric gripping material, such as those materials discussed below, so that the surface of the formed element exhibits enhanced holding power to living tissue relative to the element formed without the gripping material.
  • the gripping material suitably may be formed from a variety of materials but should provide good non-traumatic holding power to a variety of tissue types in a wet environment as would be encountered during a surgical procedure.
  • preferred gripping materials provide good holding power and the ability to manipulate the heart, stomach, intestines, gall bladder and ovaries (among others), but generally without causing substantial long-term trauma to the tissue such as puncturing or significant bruising.
  • the gripping material even if any slippage of the organ or tissue occurs while positioned on the grasping elements, no significant abrading or other trauma to the organ or tissue is likely to occur. Also, preferably, the gripping material will provide good holding power to a variety of organ and tissue types even after prolonged exposure to the wet environment of a surgical procedure, e.g. exposure for periods of 2 to 4 hours or more.
  • the gripping material suitably may be a polymer, e.g. polyvinyldiene fluoride
  • PNDF non-woven material
  • non-woven material e.g. high-density polyethylenes such as TYVEK
  • spunbonded materials such as a polyester membrane material, e.g. Ahlstorm's 3283 product or Reemay's 2040 product; and the like.
  • Non-polymeric materials also will be suitable, e.g. a sintered metal membrane.
  • a sintered metal gripping material also may provide some mechanical benefits as a result of the fine rough surface of such materials. Suitable sintered metal membranes are commercially available from vendors such as Union Carbide.
  • the gripping material suitably may be either a hydrophilic or hydrophobic material provided the material maintains its gripping properties after being wetted out during use in a surgical procedure.
  • hydrophobic materials will tend to be more durable in such wet environments and therefore will be generally preferred.
  • the gripping material preferably will be a porous polymeric material or a non- woven material having a relative area surface roughness of between about 1.03 and 10.5, more preferably a relative area surface roughness of between about 1.08 and 4.5. See H. Lipshitz et al., Tappi Journal, pages 237-245 (October 1990), incorporated herein by reference, for a discussion of relative area surface roughness and the determination thereof.
  • Preferred porous materials will have a pore size of about 200 microns or less, more preferably about 40 microns or less, preferably with a minimum size of about 0.05 microns.
  • a particularly preferred gripping material is a PVDF material having a 2 micron pore size sold under the tradename of DURAPEL by the Millipore Corporation of Bedford, Massachusetts.
  • the Reemay 2040 material (having about 10 micron pore size) is also a preferred gripping material.
  • the gripping material will exhibit a coefficient of friction of about 0.07 or greater, more preferably about 0.09 or greater, still more preferably about 0.6 or greater.
  • Generally preferred materials will typically have a coefficient of friction of less than about 3, more typically less than about 2.
  • the coefficient of friction of a particular material can be readily determined by standard procedures, specifically the sled test of the American Society for Testing and Materials (ASTM) Standard Test Method for Static and Kinetic Coefficients of Friction (test designation D 1894; modified to use sled on wet pig stomach tissue).
  • the gripping material on the surface of a grasping element is most preferably substantially smooth and provides good gripping properties without the type of visible (naked eye) protrusions reported in certain prior clamp systems. See for instance European Application 256966 (reports VELCRO surface) and U.S. Patent 3,746,002 (reports surface pin members that puncture clamped tissue). Among other things, such protrusions could result in significant trauma to manipulated tissue. References herein to a substantially smooth surface of a gripping material are intended to exclude those visible protrusions.
  • Grasping elements which are covered with a suitable gripping material may be releasably attached to arms 16 and 17 of the stabilizer foot base 50 (or any other base configuration) by a variety of mechanisms.
  • the mechanism preferably should permit snap-in attachment of a grasping pad element that can be readily performed by a medical personnel and enable pad removal at the end of a medical procedure with minimal or no use of tools.
  • Particularly preferred attachment methods include the clip assembly shown in
  • FIGS. 1A-1D are identical to FIGS. 1A-1D.
  • FIGS. 2A-2D Other preferred attachment methods include use of an adhesive such as that shown in FIGS. 2A-2D, or via thermobonding, e.g., using silicone.
  • organ stabilizer devices of the invention can vary rather widely and can be readily determined by those skilled in the art based on the present disclosure.
  • the device should have a shape and length so that the device is capable of being inserted into a patient for use in any given surgical procedure.
  • An organ stabilizer device of the invention may be suitably used in a variety of surgical operations. For example, such methods comprise accessing a bodily cavity of a patient (via open incision or laparoscopic/endoscopic procedures), positioning an organ stabilizer device in accordance with the present invention at or near a target operative site, contacting the desired organ or tissue with the grasping element to facilitate grasping of the organ or tissue to the organ stabilizer device, and immobilizing such organ or tissue for a desired length of time.
  • the device can then be removed from the patient through the bodily cavity in the case of open incision procedures, or via a trocar introducer device in the case of laparoscopic and endoscopic procedures.
  • Devices of the present invention may be supplied in a variety of sizes, including different lengths as well as different diameters of the elongate body member as discussed above, depending on the specific intended application.
  • the invention also includes device kits which comprise an organ stabilizer device of the invention supplied together with or separately from grasping elements packaged in a sterile condition.
  • an organ stabilizer device without releasable pads is supplied separately from the grasping elements which are packaged in sterile condition.
  • two grasping elements will be supplied in a given sterile packaging.

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

Abstract

L'invention concerne un dispositif amélioré de stabilisation d'organe (10) qui présente une capacité accrue de préhension de divers types d'organes et de tissus corporels à des pressions de saisie minimales. Le dispositif est particulièrement bien adapté à des procédures d'incision ouvertes, mais peut également être utilisé dans des procédures laparoscopiques et endoscopiques. Les dispositifs de l'invention comprennent de préférence une base de pied de stabilisation et des éléments de préhension remplaçables (13), p. ex. sous forme de tampon, qui s'incorporent dans une matière de préhension de surface présentant une bonne retenue en milieu humide par rapport à une surface voulue telle que, notamment mais pas exclusivement, des organes vivants et des tissus corporels. La matière de préhension confère une intensité de retenue accrue de la surface voulue, par rapport à l'intensité de retenue que présentent les éléments de préhension sans cette matière de préhension.
PCT/US2000/042159 1999-11-15 2000-11-15 Dispositif de stabilisation d'organe comportant une surface de prehension non vulnerante et procedes associes WO2001035814A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU30823/01A AU3082301A (en) 1999-11-15 2000-11-15 Organ stabilization device having a non-traumatic gripping surface and methods related thereto

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16564099P 1999-11-15 1999-11-15
US60/165,640 1999-11-15

Publications (1)

Publication Number Publication Date
WO2001035814A1 true WO2001035814A1 (fr) 2001-05-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8454495B2 (en) 2003-02-25 2013-06-04 Olympus Corporation Capsule medical apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791330A2 (fr) * 1996-02-20 1997-08-27 Cardiothoracic Systems, Inc. Instruments chirurgicaux et procédures de stabilisation du battement du coeur pendant une greffe de pontage d'une artère coronaire
WO1997040738A1 (fr) * 1996-04-26 1997-11-06 Genzyme Corporation Ecarteur servant a stabiliser l'artere coronaire
US6063021A (en) * 1998-07-31 2000-05-16 Pilling Weck Incorporated Stabilizer for surgery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791330A2 (fr) * 1996-02-20 1997-08-27 Cardiothoracic Systems, Inc. Instruments chirurgicaux et procédures de stabilisation du battement du coeur pendant une greffe de pontage d'une artère coronaire
WO1997040738A1 (fr) * 1996-04-26 1997-11-06 Genzyme Corporation Ecarteur servant a stabiliser l'artere coronaire
US6063021A (en) * 1998-07-31 2000-05-16 Pilling Weck Incorporated Stabilizer for surgery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8454495B2 (en) 2003-02-25 2013-06-04 Olympus Corporation Capsule medical apparatus

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