US3588920A - Surgical vascular prostheses formed of polyester fiber paper - Google Patents

Surgical vascular prostheses formed of polyester fiber paper Download PDF

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Publication number
US3588920A
US3588920A US855585A US3588920DA US3588920A US 3588920 A US3588920 A US 3588920A US 855585 A US855585 A US 855585A US 3588920D A US3588920D A US 3588920DA US 3588920 A US3588920 A US 3588920A
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United States
Prior art keywords
polyester fiber
prostheses
fiber paper
paper
microns
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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.)
Expired - Lifetime
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US855585A
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English (en)
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Sigmund A Wesolowski
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SIGMUND A WESOLOWSKI
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Individual
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Assigned to MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MORGAN BANK ( DELAWARE ) AS COLLATERAL ( AGENTS ) SEE RECORD FOR THE REMAINING ASSIGNEES. reassignment MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MORGAN BANK ( DELAWARE ) AS COLLATERAL ( AGENTS ) SEE RECORD FOR THE REMAINING ASSIGNEES. MORTGAGE (SEE DOCUMENT FOR DETAILS). Assignors: STP CORPORATION, A CORP. OF DE.,, UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,, UNION CARBIDE CORPORATION, A CORP.,, UNION CARBIDE EUROPE S.A., A SWISS CORP.
Assigned to UNION CARBIDE CORPORATION, reassignment UNION CARBIDE CORPORATION, RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: MORGAN BANK (DELAWARE) AS COLLATERAL AGENT
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/14—Macromolecular materials
    • A61L27/18—Macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • polyester fiber paper having a thickness of from about 64 microns to about 254 microns.
  • the mechanical handling properties are excellent and the residual patency of the implanted prostheses following healing is superior to polyester prostheses having a woven or knit structure.
  • This invention relates to prostheses constructed to maintain an open lumen when placed in an animal body, particularly in the human body. More particularly, this invention relates to vascular implants for surgical use in the repair and replacement of vessels and tracts in human and animal bodies.
  • Synthetic fibers such as Vinyon-N, nylon, Orlon, Dacron, Teflon, and Ivalon have been woven and knitted into tubes and other suitable shapes, for use as arteries, veins, ducts, esophagi and the like.
  • an artificial graft must meet a number of standards in order to be of value.
  • the graft must have certain physical properties such that it can be readily handled and manipulated during the specific surgery calling for its use. It must be flexible, for such is essential during an operation when time is critical and the graft must be accommodated to the artery, vein or the like to which it is being secured. It is sometimes necessary in surgery to bend a device or graft either around or under a body organ.
  • An essential feature is that the graft be suificiently rigid, though bendable, to allow for flexing without collapse and closing of the lumen thereof. If the graft does not have such strength, there is ever present the danger that when bent or flexed acutely in the body the lumen would collapse, leading to fatality.
  • a suitable prostheses for the body should be non-toxic, flexible and porous.
  • the ideal prostheses should retain its strength permanently in intimate contact with the body fluids and should be readily accepted and incorporated into the tissues. Porosity is an important characteristic of such a prosthesis to avoid the formation of fluid pockets and to promote the growth through the fabric of repair tissue. Proper merging of the fabric with the body structure is also essential.
  • the fibers are randomly arranged and bonded together to form a non-woven, paper-like sheet.
  • the structure may be stabilized by fusion of some of the polyester fibers to cause adhesion.
  • various adhesives may be used for this purpose, i.e., a polyamide resin produced by the condensation of a polycarboxylic acid with polyamine (Versamid).
  • an adhesive it must be applied sparingly to spot-weld the polyester fibers at spaced intervals throughout the area of the paper sheet so as not to decrease unduly the porosity of the fabric.
  • a polyamide resin it is heatcured to polymerize and set the adhesive.
  • a further object of the present invention is to provide a gossamer tube of high porosity. Still another object is to form artificial vascular parts for an animal body suitable for use as a replacement for damaged arteries.
  • FIG. 1 is a perspective view of a Dacron paper tube embodying the invention
  • FIG. 2 is a perspective view of the Dacron paper vascular implant of bifurcated form
  • FIG. 3 is a cross-section of a vascular prostheses on the line 3--3 of FIG. 1;
  • FIG. 4 is a longitudinal cross-section on the line 4-4 of FIG. 1;
  • FIG. 5 is a cross-section of the tube shown in FIGS. 1 and 4 when in a crimped condition.
  • the paper that is used to construct the prostheses of the present invention may consist essentially of polyester (polyethylene terephthalate) fibers of indefinite length.
  • the paper is desirably between about 64 microns and 254 microns in thickness.
  • one may include in the polyester fi-ber composition a small amount (1-4%) of a polyester fiber having a melting point that is substantially below the melting point of the polyester fibers that con stitute the major portion of the paper composition.
  • the paper sheet after formation, is heated for a short period of time to the fusion temperature of the low melting polyester fibers, but below the fusion temperature of the higher melting polyester fibers, and then cooled to room temperature.
  • the vascular prostheses of the present invention may be constructed, as best shown in FIG. 1, by rolling an oblong sheet to form a tube 10 and cementing the longitudinal seam 11 with a suitable adhesive.
  • Adhesives that may be used for this purpose are the Z-cyanoacrylic esters such as methyl Z-cyanoacrylate and isobutyl Z-cyanoacrylate.
  • the longitudinal seams may be secured by sewing with a polyester fiber thread, or by heat sealing.
  • Bifurcated structures of the type shown in FIG. 2 may be manufactured by making a small longitudinal cut 12 in the wall of a tube and joining thereto one end of a second tube 13 with an appropriate adhesive or by sewing, or heat sealing.
  • the tubes of the present invention may be crimped to allow for flexing and bending without collapse and closing of the lumen, by placing the uncrimped tube on a glass mandrel of slightly smaller diameter and compressing the tube longitudinally. The glass mandrel with the compressed tube thereon is then heat-set at a temperature slightly below the fusion temperature of the polyester fibers that are present in the paper, and permitted to cool to room temperature. After cooling, a crimped prostheses having the structure illustrated in FIG. may be removed from the mandrel.
  • Paper polyester fiber tubes constructed in accordance with the present invention exhibit excellent mechanical and physical properties and may be sutured quite like normal aorta. Tests have been performed by implantation into the thoracic aorta of growing pigs for periods of six months.
  • the prostheses demonstrate in general excellent healing properties that compare well with the best healing prostheses of knitted and woven fabrications and show no incidence of obstruction that may sometimes result from the secondary deposition of thrombus upon the inner surface.
  • the general observations with respect to fibrotic and cellular reaction, stenosis, and obstruction is summarized in the following table.
  • the articles formed as described herein are useful as tubular grafts. They have desired characteristics as revealed by their maneuverability and flexing quality and capability of maintaining an open lumen when flexed. In addition, they have the desired feature of porosity as well as integrating Well with body tissue.
  • a tubular vascular prosthesis formed from randomly arranged polyester fibers bonded together to form a polyester fiber paper implant suitable for implanting in the human or animal body, said prosthesis characterized by having a porosity to water of from about 550 cc. to 8,000 cc. per minute per square centimeter as measured on the Wesolowski scale and having a wall thickness of from about 64 microns to about 254 microns.
  • the vascular prostheses of claim 1 wherein the porosity is 8,000 cc. per minute per square centimeter and the wall thickness is 64 microns.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Transplantation (AREA)
  • Medicinal Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dermatology (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
  • Materials For Medical Uses (AREA)
US855585A 1969-09-05 1969-09-05 Surgical vascular prostheses formed of polyester fiber paper Expired - Lifetime US3588920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85558569A 1969-09-05 1969-09-05

Publications (1)

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US3588920A true US3588920A (en) 1971-06-29

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US855585A Expired - Lifetime US3588920A (en) 1969-09-05 1969-09-05 Surgical vascular prostheses formed of polyester fiber paper

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US (1) US3588920A (enrdf_load_stackoverflow)
DE (1) DE2025358A1 (enrdf_load_stackoverflow)
FR (1) FR2060524A5 (enrdf_load_stackoverflow)
GB (1) GB1265246A (enrdf_load_stackoverflow)
NL (1) NL7009030A (enrdf_load_stackoverflow)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843974A (en) * 1972-01-05 1974-10-29 Us Health Education & Welfare Intimal lining and pump with vertically drafted webs
US3878565A (en) * 1971-07-14 1975-04-22 Providence Hospital Vascular prosthesis with external pile surface
US3902198A (en) * 1974-05-20 1975-09-02 Gore & Ass Method of replacing a body part with expanded porous polytetrafluoroethylene
US3908201A (en) * 1972-06-30 1975-09-30 Ici Ltd Prosthetics
US4042978A (en) * 1972-06-30 1977-08-23 Imperial Chemical Industries Limited Prosthetics
US4130904A (en) * 1977-06-06 1978-12-26 Thermo Electron Corporation Prosthetic blood conduit
US4191218A (en) * 1975-05-07 1980-03-04 Albany International Corp. Fabrics for heart valve and vascular prostheses and methods of fabricating same
EP0043555A1 (en) * 1980-07-07 1982-01-13 Teijin Limited Paper-like polyester fiber sheet and process for producing the same
US4573471A (en) * 1984-07-09 1986-03-04 Rudner Merritt A Prosthetic apparatus for surgical anastomosis
US4671797A (en) * 1984-09-21 1987-06-09 Vrandecic Pedero Mario O Heterologous arterial biograft and biological material treating process
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US4870966A (en) * 1988-02-01 1989-10-03 American Cyanamid Company Bioabsorbable surgical device for treating nerve defects
US5258027A (en) * 1991-01-24 1993-11-02 Willy Rusch Ag Trachreal prosthesis
US5697970A (en) * 1994-08-02 1997-12-16 Meadox Medicals, Inc. Thinly woven flexible graft
US5700287A (en) * 1992-12-11 1997-12-23 W. L. Gore & Associates, Inc. Prosthetic vascular graft with deflectably secured fibers
WO1999033403A1 (en) 1997-12-31 1999-07-08 Kensey Nash Corporation Bifurcated connector system for coronary bypass grafts
US6017352A (en) * 1997-09-04 2000-01-25 Kensey Nash Corporation Systems for intravascular procedures and methods of use
US6030395A (en) * 1997-05-22 2000-02-29 Kensey Nash Corporation Anastomosis connection system
US6063114A (en) * 1997-09-04 2000-05-16 Kensey Nash Corporation Connector system for vessels, ducts, lumens or hollow organs and methods of use
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
US20030093140A1 (en) * 1987-12-08 2003-05-15 W. Henry Wall Method of implanting a sleeve in a lumen
US20050113910A1 (en) * 2002-01-04 2005-05-26 David Paniagua Percutaneously implantable replacement heart valve device and method of making same
US20050267566A1 (en) * 2003-03-26 2005-12-01 Robert Rioux Longitudinally expanding medical device
US20090163936A1 (en) * 2007-12-21 2009-06-25 Chunlin Yang Coated Tissue Engineering Scaffold
US20100100170A1 (en) * 2008-10-22 2010-04-22 Boston Scientific Scimed, Inc. Shape memory tubular stent with grooves
US20100227096A1 (en) * 2009-03-09 2010-09-09 Georg Fischer Jrg Ag Method for producing a tubular hollow body, and tubular hollow body
US8361144B2 (en) 2010-03-01 2013-01-29 Colibri Heart Valve Llc Percutaneously deliverable heart valve and methods associated therewith
US9119738B2 (en) 2010-06-28 2015-09-01 Colibri Heart Valve Llc Method and apparatus for the endoluminal delivery of intravascular devices
EP3011936A1 (en) * 2011-01-06 2016-04-27 Humacyte Tissue-engineered constructs
US9737400B2 (en) 2010-12-14 2017-08-22 Colibri Heart Valve Llc Percutaneously deliverable heart valve including folded membrane cusps with integral leaflets
CN107708612A (zh) * 2015-06-02 2018-02-16 株式会社Adeka 源自生物体的组织的片材、由该片材得到的管状结构体以及包含该管状结构体的人工血管
US11395726B2 (en) 2017-09-11 2022-07-26 Incubar Llc Conduit vascular implant sealing device for reducing endoleaks

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1527592A (en) * 1974-08-05 1978-10-04 Ici Ltd Wound dressing
US4340091A (en) * 1975-05-07 1982-07-20 Albany International Corp. Elastomeric sheet materials for heart valve and other prosthetic implants
GB1577221A (en) * 1976-02-04 1980-10-22 Ici Ltd Vascular prosthesis
DE2806030C2 (de) * 1978-02-14 1984-02-02 B. Braun Melsungen Ag, 3508 Melsungen Verfahren zur Herstellung einer schlauchförmigen Blutgefäßprothese
DE3477464D1 (en) * 1983-06-06 1989-05-03 Kanegafuchi Chemical Ind Artificial vessel and process for preparing the same
DE3478192D1 (en) * 1983-06-06 1989-06-22 Kanegafuchi Chemical Ind Artificial vessel and process for preparing the same
EP0157178B1 (en) * 1984-03-01 1988-11-30 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Artificial vessel and process for preparing the same
GB8422530D0 (en) * 1984-09-06 1984-10-10 Shirley Inst Production of porous tubes
DE3666530D1 (en) * 1985-08-26 1989-11-30 Kanegafuchi Chemical Ind Artificial vessel
JPS63209647A (ja) * 1987-02-26 1988-08-31 鐘淵化学工業株式会社 人工血管
SE8802414D0 (sv) * 1988-06-27 1988-06-28 Astra Meditec Ab Nytt kirurgiskt material
US5641505A (en) * 1988-06-27 1997-06-24 Astra Tech Aktiebolag Porous flexible sheet for tissue separation
ATE511816T1 (de) * 2003-03-31 2011-06-15 Teijin Ltd Verbund aus trägersubstrat und kollagen und verfahren zur herstellung eines trägersubstrats und verbunds
EP2314739A1 (en) * 2009-10-22 2011-04-27 Gyeong-Man Kim Anti-migration casing for transponders

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878565A (en) * 1971-07-14 1975-04-22 Providence Hospital Vascular prosthesis with external pile surface
US3843974A (en) * 1972-01-05 1974-10-29 Us Health Education & Welfare Intimal lining and pump with vertically drafted webs
US3908201A (en) * 1972-06-30 1975-09-30 Ici Ltd Prosthetics
US4042978A (en) * 1972-06-30 1977-08-23 Imperial Chemical Industries Limited Prosthetics
US3902198A (en) * 1974-05-20 1975-09-02 Gore & Ass Method of replacing a body part with expanded porous polytetrafluoroethylene
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
US4191218A (en) * 1975-05-07 1980-03-04 Albany International Corp. Fabrics for heart valve and vascular prostheses and methods of fabricating same
US4130904A (en) * 1977-06-06 1978-12-26 Thermo Electron Corporation Prosthetic blood conduit
EP0043555A1 (en) * 1980-07-07 1982-01-13 Teijin Limited Paper-like polyester fiber sheet and process for producing the same
US4573471A (en) * 1984-07-09 1986-03-04 Rudner Merritt A Prosthetic apparatus for surgical anastomosis
US4671797A (en) * 1984-09-21 1987-06-09 Vrandecic Pedero Mario O Heterologous arterial biograft and biological material treating process
US4759748A (en) * 1986-06-30 1988-07-26 Raychem Corporation Guiding catheter
US6974475B1 (en) 1987-12-08 2005-12-13 Wall W Henry Angioplasty stent
US20030093140A1 (en) * 1987-12-08 2003-05-15 W. Henry Wall Method of implanting a sleeve in a lumen
US4870966A (en) * 1988-02-01 1989-10-03 American Cyanamid Company Bioabsorbable surgical device for treating nerve defects
US5258027A (en) * 1991-01-24 1993-11-02 Willy Rusch Ag Trachreal prosthesis
US5700287A (en) * 1992-12-11 1997-12-23 W. L. Gore & Associates, Inc. Prosthetic vascular graft with deflectably secured fibers
US5697970A (en) * 1994-08-02 1997-12-16 Meadox Medicals, Inc. Thinly woven flexible graft
USRE40404E1 (en) 1994-08-02 2008-06-24 Maquet Cardiovascular, Llp Thinly woven flexible graft
US6030395A (en) * 1997-05-22 2000-02-29 Kensey Nash Corporation Anastomosis connection system
US6036705A (en) * 1997-05-22 2000-03-14 Kensey Nash Corporation Anastomosis connection system and method of use
US6056762A (en) * 1997-05-22 2000-05-02 Kensey Nash Corporation Anastomosis system and method of use
US6402767B1 (en) 1997-05-22 2002-06-11 Kensey Nash Corporation Anastomosis connection system and method of use
US7264624B2 (en) 1997-09-04 2007-09-04 Kensey Nash Corporation Surgical connector systems and methods of use
US7695483B2 (en) 1997-09-04 2010-04-13 Kensey Nash Corporation Surgical connector systems and methods of use
US6063114A (en) * 1997-09-04 2000-05-16 Kensey Nash Corporation Connector system for vessels, ducts, lumens or hollow organs and methods of use
US6923820B1 (en) 1997-09-04 2005-08-02 Kensey Nash Corporation Surgical connector systems and methods of use
US20050245946A1 (en) * 1997-09-04 2005-11-03 Nash John E Surgical connector systems and methods of use
US8377080B2 (en) 1997-09-04 2013-02-19 Kensey Nash Corporation Surgical connector systems and methods of use
US6017352A (en) * 1997-09-04 2000-01-25 Kensey Nash Corporation Systems for intravascular procedures and methods of use
US5922022A (en) * 1997-09-04 1999-07-13 Kensey Nash Corporation Bifurcated connector system for coronary bypass grafts and methods of use
US20070293881A1 (en) * 1997-09-04 2007-12-20 Nash John E Surgical connector systems and methods of use
US20100217290A1 (en) * 1997-09-04 2010-08-26 Nash John E Surgical connector systems and methods of use
WO1999033403A1 (en) 1997-12-31 1999-07-08 Kensey Nash Corporation Bifurcated connector system for coronary bypass grafts
US9554898B2 (en) 2002-01-04 2017-01-31 Colibri Heart Valve Llc Percutaneous prosthetic heart valve
US9610158B2 (en) 2002-01-04 2017-04-04 Colibri Heart Valve Llc Percutaneously implantable replacement heart valve device and method of making same
US9125739B2 (en) 2002-01-04 2015-09-08 Colibri Heart Valve Llc Percutaneous replacement heart valve and a delivery and implantation system
US20090030511A1 (en) * 2002-01-04 2009-01-29 David Paniagua Percutaneously implantable replacement heart valve device and method of making same
US20050113910A1 (en) * 2002-01-04 2005-05-26 David Paniagua Percutaneously implantable replacement heart valve device and method of making same
US8900294B2 (en) 2002-01-04 2014-12-02 Colibri Heart Valve Llc Method of controlled release of a percutaneous replacement heart valve
US8109995B2 (en) 2002-01-04 2012-02-07 Colibri Heart Valve Llc Percutaneously implantable replacement heart valve device and method of making same
US8308797B2 (en) 2002-01-04 2012-11-13 Colibri Heart Valve, LLC Percutaneously implantable replacement heart valve device and method of making same
US8790398B2 (en) 2002-01-04 2014-07-29 Colibri Heart Valve Llc Percutaneously implantable replacement heart valve device and method of making same
US9186248B2 (en) 2002-01-04 2015-11-17 Colibri Heart Valve Llc Percutaneously implantable replacement heart valve device and method of making same
US20050267566A1 (en) * 2003-03-26 2005-12-01 Robert Rioux Longitudinally expanding medical device
US7842098B2 (en) * 2003-03-26 2010-11-30 Boston Scientific Scimed, Inc. Longitudinally expanding medical device
US20090163936A1 (en) * 2007-12-21 2009-06-25 Chunlin Yang Coated Tissue Engineering Scaffold
US9980806B2 (en) 2008-10-22 2018-05-29 Boston Scientific Scimed, Inc. Shape memory tubular stent with grooves
US20100100170A1 (en) * 2008-10-22 2010-04-22 Boston Scientific Scimed, Inc. Shape memory tubular stent with grooves
US9724883B2 (en) 2009-03-09 2017-08-08 Georg Fischer Jrg Ag Method for producing a tubular hollow body, and tubular hollow body
US8652605B2 (en) * 2009-03-09 2014-02-18 Georg Fischer Jrg Ag Method for producing a tubular hollow body, and tubular hollow body
US20100227096A1 (en) * 2009-03-09 2010-09-09 Georg Fischer Jrg Ag Method for producing a tubular hollow body, and tubular hollow body
US8361144B2 (en) 2010-03-01 2013-01-29 Colibri Heart Valve Llc Percutaneously deliverable heart valve and methods associated therewith
US9119738B2 (en) 2010-06-28 2015-09-01 Colibri Heart Valve Llc Method and apparatus for the endoluminal delivery of intravascular devices
US9737400B2 (en) 2010-12-14 2017-08-22 Colibri Heart Valve Llc Percutaneously deliverable heart valve including folded membrane cusps with integral leaflets
US10973632B2 (en) 2010-12-14 2021-04-13 Colibri Heart Valve Llc Percutaneously deliverable heart valve including folded membrane cusps with integral leaflets
EP3011936A1 (en) * 2011-01-06 2016-04-27 Humacyte Tissue-engineered constructs
CN107708612A (zh) * 2015-06-02 2018-02-16 株式会社Adeka 源自生物体的组织的片材、由该片材得到的管状结构体以及包含该管状结构体的人工血管
JP2020185432A (ja) * 2015-06-02 2020-11-19 株式会社Adeka 生体由来組織のシート、該シートから得られる管状構造体及び該管状構造体からなる人工血管
US11395726B2 (en) 2017-09-11 2022-07-26 Incubar Llc Conduit vascular implant sealing device for reducing endoleaks

Also Published As

Publication number Publication date
NL7009030A (enrdf_load_stackoverflow) 1971-03-09
GB1265246A (enrdf_load_stackoverflow) 1972-03-01
FR2060524A5 (enrdf_load_stackoverflow) 1971-06-18
DE2025358A1 (de) 1971-06-16

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AS Assignment

Owner name: MORGAN GUARANTY TRUST COMPANY OF NEW YORK, AND MOR

Free format text: MORTGAGE;ASSIGNORS:UNION CARBIDE CORPORATION, A CORP.,;STP CORPORATION, A CORP. OF DE.,;UNION CARBIDE AGRICULTURAL PRODUCTS CO., INC., A CORP. OF PA.,;AND OTHERS;REEL/FRAME:004547/0001

Effective date: 19860106

AS Assignment

Owner name: UNION CARBIDE CORPORATION,

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MORGAN BANK (DELAWARE) AS COLLATERAL AGENT;REEL/FRAME:004665/0131

Effective date: 19860925