LV12175B - Blood vessel prosthesis - Google Patents

Blood vessel prosthesis Download PDF

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Publication number
LV12175B
LV12175B LVP-97-102A LV970102A LV12175B LV 12175 B LV12175 B LV 12175B LV 970102 A LV970102 A LV 970102A LV 12175 B LV12175 B LV 12175B
Authority
LV
Latvia
Prior art keywords
prosthesis
blood vessel
vessel prosthesis
polyester
polyurethane
Prior art date
Application number
LVP-97-102A
Other languages
Latvian (lv)
Other versions
LV12175A (en
Inventor
Viktorija KANCĒVIČA
Vladimirs Kasjanovs
Original Assignee
Rīgas Tehniskā Universitāte
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 Rīgas Tehniskā Universitāte filed Critical Rīgas Tehniskā Universitāte
Priority to LVP-97-102A priority Critical patent/LV12175B/en
Publication of LV12175A publication Critical patent/LV12175A/en
Publication of LV12175B publication Critical patent/LV12175B/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
    • A61F2/06—Blood vessels

Landscapes

  • Health & Medical Sciences (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (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)

Abstract

This blood vessel prosthesis is woven from the combined threads of polyester and mono-polyurethane, forming a crimpy prosthesis. Afterwards, it is stabilized for three minutes at a temperature of 180 degrees C forming walls capable of developing velour-like loop planking.<IMAGE>

Description

Elastīga asinsvadu protēze Izgudrojuma aprakstsDESCRIPTION OF THE INVENTION

Izgudrojums attiecas uz medicīnas tehniku, to var pielietot, implantējot asinsvadu sistēmas dažādus posmus.BACKGROUND OF THE INVENTION The present invention relates to a medical technique which can be used to implant various stages of the vascular system.

Ir zināma gofrēta asinsvadu protēze, LV patents Nr. 10836, kura sastāv no mazelastigiem, bet porainiem poliestera un elastīgiem mono poliuretāna pavedieniem, izstrādāta ar divslāņa maisveida pinumu.Šai protēzei ir sekojoši trūkumi:Corrugated vascular prosthesis is known, LV patent no. 10836, consisting of low-elastic but porous polyester and elastic mono-polyurethane filaments, designed with a double-layered bag braided.This prosthesis has the following disadvantages:

- sieniņu gofrējums traucē normālu hemodinamiku,- corrugation of the walls interferes with normal hemodynamics,

- sieniņām ir tēls biezums,- the walls have an image thickness,

- sieniņu struktūra rada lielus asins zudumus pēcimplantācijas periodā.- the structure of the walls causes great blood loss in the postimplantation period.

Piedāvātā izgudrojuma mērķis ir uzlabot protēzes kvalitāti, samazinot pēcoperācijas periodā asins zudumus, uzlabot hemodinamiku , nodrošinot ātru protēzes iedzīvošanos” pēc implantācijas.The purpose of the present invention is to improve the quality of the prosthesis by reducing blood loss in the postoperative period, to improve hemodynamics, and to ensure a rapid restoration of the prosthesis after implantation.

Mērķi sasniedz sekojoši - no kompleksiem poliestera un mono poliuretāna pavedieniem auž cilpainu protēzi, pie tam to termostabilizē (Τ=180“ C, 3 min.), lai sieniņās veidotos velūrveidigs cilpu klājums.The goal is achieved by weaving a looped prosthesis from complex polyester and mono polyurethane yarns, and thermostabilizing it (Τ = 180 “C, 3 min.) To form a velor loop on the walls.

Fig.l parādīta elastīgās asinsvadu protēzes sieniņas struktūra. Protēze veidota no kompleksiem poliestera 1 un 3 un mono poliuretāna 2 un 4 šķēru un audu pavedieniem. Elastīgie poliuretāna pavedieni, kuri aušanas procesā izstiepti par 200-250%, pēc auduma regulātora- saraujas, veidojot protēzes ārpusē un iekšpusē irdenas poliestera cilpas. Pēc termostabilizācijas procesa (Τ^ΙδίΤΌ, 3 min.) cilpas noliecas zem 25-30 grādu leņķa pret protēzes asi un veido velūrveidīgu klājumu, Šis efekts nodrošina normālu hemodinamiku, mazu sieniņu biezumu un ātru protēzes iedzīvošanos”pēc implantācijas.Fig. 1 shows the structure of an elastic vascular prosthesis wall. The prosthesis is composed of complex warp and weft threads of polyester 1 and 3 and mono polyurethane 2 and 4. Elastic polyurethane filaments stretched by 200-250% during the weaving process, after the fabric regulator shrinks to form loose polyester loops on the outside and inside. After the thermostabilization process (Τ ^ ΙδίΤΌ, 3 min.) The loops bend below 25-30 degrees to the prosthesis axis and form a velor-like coating. This effect ensures normal hemodynamics, small wall thickness and rapid prosthesis settling 'after implantation.

Claims (1)

Elastīga asinsvadu protēze, satur austu elastīgu caurulīti no bioloģiski inertiem pavedieniem, atšķiras ar to, ka caurulītes struktūrā iekšējā un ārējā virsma izveidota ar vienmērīgu cilpu klājumu.Elastic vascular prosthesis, consisting of a woven elastic tube made from biologically inert filaments, is characterized by the fact that the inner and outer surface of the tubular structure is formed by a smooth coating of loops.
LVP-97-102A 1997-05-29 1997-05-29 Blood vessel prosthesis LV12175B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
LVP-97-102A LV12175B (en) 1997-05-29 1997-05-29 Blood vessel prosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LVP-97-102A LV12175B (en) 1997-05-29 1997-05-29 Blood vessel prosthesis

Publications (2)

Publication Number Publication Date
LV12175A LV12175A (en) 1998-12-20
LV12175B true LV12175B (en) 1999-03-20

Family

ID=19736309

Family Applications (1)

Application Number Title Priority Date Filing Date
LVP-97-102A LV12175B (en) 1997-05-29 1997-05-29 Blood vessel prosthesis

Country Status (1)

Country Link
LV (1) LV12175B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001060426A1 (en) * 2000-02-16 2001-08-23 Viktoria Kantsevitcha Arterial prosthesis
US6863696B2 (en) 2000-02-16 2005-03-08 Viktoria Kantsevitcha Vascular prosthesis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001060426A1 (en) * 2000-02-16 2001-08-23 Viktoria Kantsevitcha Arterial prosthesis
US6863696B2 (en) 2000-02-16 2005-03-08 Viktoria Kantsevitcha Vascular prosthesis

Also Published As

Publication number Publication date
LV12175A (en) 1998-12-20

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