+

WO1999065559A1 - Tube permettant de former un vaisseau artificiel - Google Patents

Tube permettant de former un vaisseau artificiel Download PDF

Info

Publication number
WO1999065559A1
WO1999065559A1 PCT/SI1999/000017 SI9900017W WO9965559A1 WO 1999065559 A1 WO1999065559 A1 WO 1999065559A1 SI 9900017 W SI9900017 W SI 9900017W WO 9965559 A1 WO9965559 A1 WO 9965559A1
Authority
WO
WIPO (PCT)
Prior art keywords
length section
patient
artificial vessel
inside bore
hose
Prior art date
Application number
PCT/SI1999/000017
Other languages
English (en)
Inventor
Rajko Kenda
Jadranka BUTUROVIĆ-PONIKVAR
Original Assignee
Klinični center Ljubljana
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 Klinični center Ljubljana filed Critical Klinični center Ljubljana
Priority to AU43064/99A priority Critical patent/AU4306499A/en
Publication of WO1999065559A1 publication Critical patent/WO1999065559A1/fr

Links

Classifications

    • 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
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3655—Arterio-venous shunts or fistulae
    • 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
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis

Definitions

  • the present invention relates to a hose for making an artificial vessel, particularly for a permanent shunt-type interconnection of an artery and a vein, for example within an arm, in order to recurrently connect and disconnect a patient to and from a dialyzer.
  • the matter of concern in prior art is a hose of plastics cut to a suitable length as dry goods, the hose having a uniform nominal inside bore smaller than that of the artery at the implantation site and not larger than that of the vein at the implantation site, both conditioned by blood phenomena influenced thereby.
  • Flow circumstances in a closed patient's artery/vein system having implanted an artificial vessel of the kind set forth above are different in the state when the patient is not connected to a dialyzer i.e. most of the time, in comparison to the ones in the state when the patient is connected to the dialyzer.
  • At least three mutually independent threshold values of blood flow are to be taken into consideration, all concerning the artery.
  • the blood flow through the dialyzer must exceed a minimum value at which the functioning of the apparatus is undisturbed, which again depends on the particular properties of blood.
  • a critical, hence decisive, blood-conveying member of the above-outlined arrangement is a needle.
  • the needle occupies a part of the nominal inside bore of the artificial vessel.
  • the said requirement relates to the remaining nominal inside bore of the artificial vessel i.e. the gap between the inner mantle surface of the hose and the outer mantle surface of the needle.
  • a hose for making an artificial vessel which comprises:
  • a first length section adapted to be joined, by one of its ends, to a patient's artery, whose nominal inside bore meets the above requirements (2) and (3),
  • a second length section adapted to follow the said first length section, whose nominal inside bore is reduced in comparison to the one of the first length section, thus constituting a throttling length section, whereat its nominal inside bore fulfills the above requirement (2), and
  • a third length section adapted to be joined, by one of its ends, to the said second length section and, by the other one, to a patient's vein, whose nominal inside bore also meets the above requirements (2) and (3), the said third length section preferably having an inside bore equal to that of the first length section.
  • the three length sections are suitably assembled to form one piece.
  • the second length section between the first and third length sections does not generate irregularities of blood flow, particularly a deceleration and/or vortexes that could cause the coagulation of blood or harm it in some other way.
  • the nominal inside bore of the said second length section is not smaller than the difference of the flow areas between the first and the third length sections, respectively, and the blood-flow-affected projection surface of the wetted part of either shunt needle installed therein for the interconnection of the patient and the machine.
  • aper se known transformation of a circular inside bore to an elliptic one with maintaining the perimeter constant is used for creating a throttling member.
  • the nominal inside bore of the ellipse is a multiple of the nominal inside bore of the respective circle with a factor equal to the quotient of the minor to the major axes of the ellipse. If e.g. the said quotient equals Vz, the elliptic inside bore of the vessel amounts to one half of the circular one.
  • a prior art hose can be transformed to an artificial vessel according to this embodiment of the invention simply by using an outer clamp providing a defined clearance.

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Cardiology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

L'invention concerne un tube permettant de former un vaisseau artificiel, se prêtant particulièrement à une interconnexion permanente à dérivation d'une artère et d'une veine, par exemple dans un bras afin d'assurer à un patient une connexion et déconnexion répétée sur un dialyseur. Ce tube comprend une première section longitudinale conçue pour être assemblée par une de ses extrémités à l'artère d'un patient, une seconde section longitudinale dans le prolongement de la première section dont l'alésage intérieur nominal est inférieur à la première section, ce qui constitue une section d'étranglement et une troisième section longitudinale conçue pour être assemblée par une de ses extrémités à ladite seconde section longitudinale et par l'autre extrémité à la veine d'un patient.
PCT/SI1999/000017 1998-06-19 1999-06-18 Tube permettant de former un vaisseau artificiel WO1999065559A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU43064/99A AU4306499A (en) 1998-06-19 1999-06-18 Hose for making an artificial vessel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SIP-9800177 1998-06-19
SI9800177A SI9800177A (sl) 1998-06-19 1998-06-19 Umetna žila

Publications (1)

Publication Number Publication Date
WO1999065559A1 true WO1999065559A1 (fr) 1999-12-23

Family

ID=20432288

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI1999/000017 WO1999065559A1 (fr) 1998-06-19 1999-06-18 Tube permettant de former un vaisseau artificiel

Country Status (3)

Country Link
AU (1) AU4306499A (fr)
SI (1) SI9800177A (fr)
WO (1) WO1999065559A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150217039A1 (en) * 2004-12-15 2015-08-06 Rox Medical, Inc. Method of treating copd with artificial arterio-venous fistula and flow mediating systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638649A (en) * 1969-07-07 1972-02-01 Univ Minnesota Implantable prosthetic pass-through device
US3882862A (en) * 1974-01-11 1975-05-13 Olga Berend Arteriovenous shunt
US3998222A (en) * 1974-04-15 1976-12-21 Shihata Alfred A Subcutaneous arterio-venous shunt with valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3638649A (en) * 1969-07-07 1972-02-01 Univ Minnesota Implantable prosthetic pass-through device
US3882862A (en) * 1974-01-11 1975-05-13 Olga Berend Arteriovenous shunt
US3998222A (en) * 1974-04-15 1976-12-21 Shihata Alfred A Subcutaneous arterio-venous shunt with valve

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DRASLER W J ET AL: "VENTURI GRAFTS FOR HEMODIALYSIS ACCESS", ASAIO TRANSACTIONS, VOL. 36, NR. 3, PAGE(S) 753 - 757, XP000204515 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150217039A1 (en) * 2004-12-15 2015-08-06 Rox Medical, Inc. Method of treating copd with artificial arterio-venous fistula and flow mediating systems
US9669148B2 (en) * 2004-12-15 2017-06-06 Rox Medical, Inc. Method of treating COPD with artificial arterio-venous fistula and flow mediating systems

Also Published As

Publication number Publication date
SI9800177A (sl) 1999-12-31
AU4306499A (en) 2000-01-05

Similar Documents

Publication Publication Date Title
US5141499A (en) Peritoneal dialysis catheter
US5807356A (en) Catheter with valve
ATE400314T1 (de) Katheterschaft mit mehreren leitungen zur verminderung von gliedischämie
US6053901A (en) Subcutaneously implanted cannula and method for arterial access
US3851646A (en) Connector for open heart surgery
WO1999037202A3 (fr) Methodes et dispositifs d'occlusion de l'aorte ascendante et de maintien de la circulation de sang oxygene dans le corps d'un patient apres arret du coeur
AU736057B2 (en) Apparatus and method for the dialysis of blood
CA2065929A1 (fr) Catheter de dialyse peritoneale
MXPA98002813A (es) Cateter, en particular para dialisis peritoneal.
EP1550479A2 (fr) Système d'accés vasculaire pour l'hemodialyse
EP3431116A1 (fr) Canule à utiliser avec un dispositif de circulation sanguine
WO1981000052A1 (fr) Catheter peritoneal
AU2002341967A1 (en) Catheter for peritoneal dialysis
EP0631513A1 (fr) Catheter a valve ameliore.
HUP9802266A2 (hu) Az oxigenizációs állapot monitorozásával támogatott hemodilució
ES2000640A6 (es) Sonda vasicular para canulizar vasos arteriales o venosos
EP0280225A3 (fr) Cannules de drainage pour veines
NO964364L (no) Hurtigskiftende utvidelseskateter
AU2005289092A1 (en) Triple lumen catheter
Harland Placement of permanent vascular access devices: Surgical considerations
EP0333308A3 (fr) Catheter à double lumen
WO2000015275A3 (fr) Dispositif de derivation pour fluides corporels et procede d'utilisation
McBride et al. Axillary artery insertion of an intraaortic balloon pump
WO1999065559A1 (fr) Tube permettant de former un vaisseau artificiel
Thatte et al. Cephalic venous flap: a series of 8 cases and a preliminary report on the use of 99mTc labelled RBCs to study the saphenous venous flap in dogs

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载