baber/WOPTO huggingface dataset:
Patent HU-221863-B1 (HU)
Inventor: HOSOKAWA HIROYASU
IPC: C07C319/20
Filed: 1995-12-18
Abstract: A találmány szerinti (I) általános képletű benzamid-oxim-származékokáltalános képletében R1 adott esetben halogénatommal szubsztituált 1–4szénatomos alkil-, 2–4 szénatomos alkenil- vagy 2–4 szénatomos al-kinilcsoport; vagy R3CH2 általános képletű csoport, ahol R3 jelentéseciano-, karboxil-, 1–4 szénatomos alkoxi-, 1–4 szénatomos alkil-tio-,1–4 szénatomos alkil-szulfinil-, 1– 4 szénatomos alkil-szulfonil-,adott esetben 1 vagy 2 halogénatommal szubsztituált 3–8 szénatomoscikloalkil-, 3– 8 szénatomos cikloalkenilcsoport, az alkilrészben 1–4szénatomot tartalmazó alkoxi-karbonil-, karbamoil-N-monoal- kil- vagyN,N-dialkil-karbamoil-csoport; R2 jelentése fenilcsoport, amely adottesetben halogénatommal, 1–4 szénatomos alkil-, halogén-alkil-,alkoxi-, halogén-- alkoxi-, 2–4 szénatomos alkenil-oxi- vagy alkinil-oxi-csoporttal egyszeresen vagy kétszeresen szubsztituált, vagy 5 vagy6 tagú heteroatomként egy vagy két nitrogén- vagy kén- vagyoxigénatomot tartalmazó aromás heterociklusos csoport, amely adottesetben 1 vagy 2 1–4 szénatomos alkilcsoporttal szubsztituált. X1jelentése 1–4 szénatomos halogén-alkil-csoport; X2 és X5 jelentéseegymástól függetlenül hidrogén- vagy halogénatom, 1–4 szénatomoshalogén-alkil-, 1–4 szénatomos alkoxi- , 1–4 szénatomos halogén-alkoxi-, 1–4 szénatomos alkil-tio-, 1–4 szénatomos alkil-szulfinil-,1–4 szénatomos alkil-- szulfonil-csoport, és X3 és X4 jelentéseegymástól függetlenül hidrogén- vagy halogénatom, 1–4 szénatomosalkil-, 1–4 szénatomos halogén-alkil-, 1–4 szénatomos alkoxi-, 1–4szénatomos alkil-tio- vagy nitrocsoport; r1 és r2 egymástólfüggetlenül hidrogén- vagy halogénatom, 1–4 szénatomos alkil-, 1–4szénatomos halogén-alkil-, 1–4 szén- atomos alkoxi-, 1–4 szénatomosalkil-tio-csoport, vagy r1 és r2 a szénatommal együttkarbonilcsoportot képez. ŕ
Patent HU-224592-B1 (HU)
Title: Use of rifaximin for the preparation of pharmaceutical composition treating diarrhoea from cryptosporidiosis
Inventor: FERRARI PATRIZIO
IPC: A61P1/12
Filed: 1998-01-22
Abstract: The use of therapeutically effective amounts of rifaximin and of pharmaceutical compositions containing it in the treatment of the diarrhoeal symptomatology in case of cryptosporidiosis in patients suffering from severe forms of immunodepression, for instance patients suffering from AIDS or malignant neoplasias, or subjected to transplantations or treated with chemotherapeutic or immunosuppressive agents is the object of the present invention.
Patent JP-3044214-B1 (JP)
Title: 断熱材層の連続成形方法、および、その方法を使用した防熱壁の施工方法
IPC: E04B1/76
Filed: 1999-01-28
Granted: 2000-05-22
Abstract: 【要約】
【課題】  フィルム状の防湿材を使用可能な防熱層を形 成するに適したウレタン現場発泡注入方式を採用し、且 つ、断熱材層を連続的に形成する。
【解決手段】  型枠形成工程と、発泡成形用空間形成工 程と、発泡処理工程とを備え、上方が開放された箱状の 断熱材成形用の空間のうち、所定範囲の開放面部分を押 さえ蓋で押さえて部分的に閉塞して発泡成形用空間を形 成し、その発泡成形用空間に発泡剤を半流動体状で注入 して発泡させるとともに、押さえ蓋による押さえ範囲を 一方向に移動させて、発泡成形用空間を移動させ、その 新たな発泡成形用空間に対しても発泡剤を供給して発泡 範囲を移動させる。
Patent JP-S5144125-B1 (JP)
IPC: B01D15/08
Filed: 1972-04-18
Abstract: 1391186 Separating hydrocarbons by absorption TEXACO DEVELOPMENT CORP 28 March 1972 [19 April 1971] 14413/72 Heading C5E C 13-24  and particularly C 13-18  straight-chain hydrocarbons are separated from non-straight chain hydrocarbons using an alumino-silicate zeolite sieve to preferentially absorb them. A diluent containing C 10-13  non-straight chain hydrocarbon, e.g. kerosine, is added to the feed mixture to reduce its dew point below 650‹ F. at an absorption pressure of 5-70 p.s.i.g. The absorption which is carried out from 20-50‹ F. above the dew point is terminated and the loaded absorbent purged firstly with a C 10-13  straight chain hydrocarbon to desorb a portion of the C 13-24  straight chain hydrocarbons and then with a C 6-9  straight chain hydrocarbon to desorb C 13-24  hydrocarbons and first purge gas. Separation of various mixed effluent streams is also contemplated.
Patent JP-3002198-B1 (JP)
Title: 注射器収納ケ―ス
IPC: A61M5/24
Filed: 1999-03-02
Granted: 2000-01-24
Abstract: 【要約】
【課題】  注射針の着脱などの回転操作を容易に行うこ とができるようにする。
【解決手段】  注射器収納ケース１０に、両刀針の注射 針を収納した針ユニット６０を、該注射針の基端側５０ ｂが上向きに露出した状態で回転不自在に差し込むこと ができる注射針ユニット穴１２ａと、注射器端部に設け た回転操作ダイヤル８８を回転不自在に差し込むことが できる回転操作ダイヤル穴１２ｂとの、いずれか一方ま たは両方を設ける。
Patent JP-2875524-B1 (JP)
Title: 錠剤容器の詰め物
IPC: B65D25/10
Filed: 1998-03-24
Granted: 1999-03-31
Abstract: 【要約】
【課題】  錠剤容器の詰め物の容器への充填と取出しを 容易にする。
【解決する手段】  錠剤の容器６内での移動を防止する ための詰め物であって、可撓性合成樹脂にて略碗状に形 成され、底部１中央を除く部分は略網状を呈し、底部１ 中央に外向きに突起２を有し、網状部分は、底部１から 開口縁へ放射状に延びる縦軸４と、隣合う縦軸４、４間 を繋ぐ複数の繋ぎ片５とからなり、周方向に隣合う繋ぎ 片５は千鳥状に配列されており、内外を裏返した状態で 容器６、６内に収容されている。
Patent JP-3043750-B1 (JP)
Title: 同軸ケ―ブル固定金具
IPC: H01R9/05
Filed: 1999-03-31
Granted: 2000-05-22
Abstract: 【要約】
【課題】  容易に同軸ケーブルを基板などの設置面に固 定することができるとともに、同軸ケーブルの損失を抑 制することができ、さらに、配線不具合が生じにくい同 軸ケーブル固定金具を提供する。
【解決手段】  同軸ケーブルＵを基板などの設置面Ｘａ に固定するための同軸ケーブル固定金具であって、同軸 ケーブルＵの絶縁外皮Ｕ４に形成された切り込みから挿 入されて同軸ケーブルＵの絶縁外皮Ｕ４と外部導体Ｕ３ との間に配される外部導体接触部１と、この外部導体接 触部１に連接されかつ設置面Ｘａに固定される固定部２ とを備えるように構成する。
Patent NL-1042951-B1 (NL)
Title: Het inloggen op een auto met een mobiel apparaat met als doel het activeren van een veilig rijden modus om veiliger deel te nemen aan het wegverkeer
Inventor: DRS DIRK-JOHAN GUSSEKLOO
IPC: H04W4/02
Filed: 2018-08-14
Granted: 2020-02-24
Abstract: De afleiding van smartphones tijdens het deelnemen aan het wegverkeer is een bron van toenemende onveiligheid die moet worden tegengegaan. Het fysiek blokkeren/beperken van de afleiding kunnen we realiseren door de bestuurder te laten inloggen op een auto. Via huidige technieken die we combineren is dit nu al te realiseren. Nieuwe technieken kunnen we inbouwen in auto's, smartphiones of mobiele netwerken. Het wel of niet 'ingelogd' rijden wordt vastgelegd. Het inloggen kunnen we stimuleren via familieleden, werkgevers, passagiers. Het niet inloggen kunnen we bestraffen (hogere verzekeringspremies, geen dekking). Ultieme doel is het fysiek blokkeren van het rijden zonder ingelogd te zijn, en/of het fysiek blokkeren van de smaprtphone tijdens niet ingelogd rijden in een auto.
Patent NL-1043470-B1 (NL)
Title: Method, 3d manufacturing system and print head therfor
Inventor: MARTIJN ARNOUD KOREVAAR
IPC: B33Y30/00
Filed: 2019-11-19
Granted: 2021-08-18
Abstract: The present invention discloses a method of operating a 3D printer of a 3D printing based manufacturing system in which a filament of printing material is driven into a printer head, in which the filament is driven into a printer head so as to be expelled therefrom in molten form, the method comprising the steps of driving the filament into a heater block thermally separated from a feeder element by means of a connection between feeder element and heating block centrally comprising a thermally isolating separator or distance member through which the filament is fed. By including a thermally 10 not or minimally conducting distance holder in the feeding or entry path of the filament, the invention realizes that the heat path to which the filament is subjected is effectively elongated, i.e. the filament is instantly brought into contact with a heater block part of a maximum possible temperature level. 1043470
Patent NL-2014186-B1 (NL)
Title: Melkinrichting.
Inventor: MICHIEL ADRIAAN VAN DORP
IPC: A01J5/04
Filed: 2015-01-26
Granted: 2017-01-05
Abstract: De uitvinding verschaft een melkinrichting omvattende ten minste één melkbeker met een speenruimte en een pulsatieruimte, een met een pulsatieleiding met de pulsatieruimte van de melkbeker verbonden pulsator voorzien van een vacuümbron, een van een eerste bestuurbare klep voorziene vacuümleiding tussen de vacuümbron en de pulsatieleiding, een van een tweede bestuurbare klep voorziene beluchtingsleiding tussen de pulsatieleiding en een bron van hogere druk, en een pulsaterbesturing van de eerste en tweede klep, waarbij de pulsaterbesturing een spoelinstelling omvat voor openen en open houden van de eerste en de tweede klep gedurende tenminste een vooraf bepaalde spoeltijd die tenminste zo lang is als, en bij voorkeur langer is dan, de pulsatieperiode. Hiermee is het mogelijk om beide kleppen gelijktijdig open te hebben, en zal de pulsator lucht aanzuigen uit de omgeving in een in beginsel ongehinderde stroom. Deze stroom kan bijvoorbeeld gebruikt worden om het systeem te spoelen met lucht ("doorblazen"), maar ook bijvoorbeeld om luchtdebiet en/of drukvallen in het systeem te meten, en op basis daarvan de vervuilingsgraad van het systeem te bepalen.
Patent NL-2015997-B1 (NL)
Title: Splitter for magnetic density separation.
Inventor: PETER CARLO REM
IPC: B03C1/32
Filed: 2015-12-21
Granted: 2017-06-30
Abstract: A system and method for magnetic density separation of products (1a,1b). The system (10) comprises a magnet (2) configured to amplify a density gradient (D) in a magnetic liquid (L) for separating the products (1a,1b) in the magnetic liquid (L) according to their different density (Da,Db). A plate shape (3) is disposed along a product path (P) where respective products (1b’) travel through the magnetic liquid (L). A driving mechanism (4) is configured to drive the plate shape (3) with a reciprocating motion (R) for lowering a static friction of the respective products (1b’’) coming into contact with the plate shape (3). Accordingly, process continuity can be improved while maintaining a high separation efficiency, in particular by alleviating material build-up and clogging of products at the splitter and other surfaces with minimal disturbance to the process flow.
Patent NL-2017006-B1 (NL)
Title: a method, a system, and a computer program product for determining soil properties
Inventor: BARBARA SNACKEN
IPC: G01N15/08
Filed: 2016-06-20
Granted: 2018-01-04
Abstract: A method, system and computer program product for determining soil properties comprising a probe including at least a liquid injection port and a pressure transducer. The probe is pushed into a soil and one or more pumping tests are carried out, wherein during a pumping test infiltration liquid is pumped through the liquid injection port of the probe. By means of the pressure transducer a pressure response in the soil resulting from the injection of liquid through the liquid injection port is measured for each of the one or more pumping tests.
Patent NL-2017170-B1 (NL)
Title: A rooting plug, a tray, a pair of complementary rooting plug portions and a method
Inventor: GERRIT DIJKSTRA
Filed: 2016-07-15
Granted: 2018-01-18
Abstract: The invention relates to a rooting plug made from a substrate including organic and/or non-organic material for cultivation of a plant. The plug comprising a substantially cylindrically shaped plug body having a top surface, a side surface and a bottom surface. The plug body further comprises a cavity extending from the top surface inwardly. Also, the plug body is provided with an incision extending from the top surface, between opposite locations on the side surface of the plug body and through the cavity.
Patent NL-2017855-B1 (NL)
Title: Positioning and conveying device
Inventor: RONALD PLAK
IPC: B65H29/16
Filed: 2016-11-23
Granted: 2018-05-28
Abstract: A positioning and conveying device comprises an endless conveyor belt which runs around two rollers mounted to a frame. The outer surface of the roller is defined by a plurality of roller segments which complementary cover the perimeter. The segments are individually movable in the axial direction for laterally moving the conveyor belt relative to the frame. The device includes at least one actuator assembly comprising a controllable magnetic actuator mounted at either end of the roller. At either end of the segments a ferromagnetic counterpart is mounted to cooperate with the respective magnetic actuators so as to move the respective segments in the axial direction. Each magnetic actuator comprises an electromagnet. Each ferromagnetic counterpart is arranged on a radial inner side of the associated segment. During rotation of the roller the roller segments and the associated counterparts follow a circular trajectory during a part of which they face the corresponding electromagnets. A variable axial air gap is present between the electromagnet and the ferromagnetic counterpart. Concentrically with the ferromagnetic counterpart a stationary ferromagnetic curved plate is arranged leaving a constant radial gap between the ferromagnetic counterpart and the ferromagnetic plate. The ferromagnetic curved plate being coupled to the core of the electromagnet such that a magnetic field created by the electromagnet runs through said ferromagnetic curved plate.
Patent NL-2020137-B1 (NL)
Title: Groundwater recharge system
Inventor: IVO WILLEM ANNA BASTINGS
IPC: E03B3/34
Filed: 2017-12-20
Granted: 2019-06-26
Abstract: The invention relates to a groundwater recharge system, comprising a mineral wool reservoir, suitable for retention of water; at least one passage for water to reach the mineral wool reservoir; 5 and at least one columnar conduit between the reservoir and the aquifer, which allows water from the reservoir to ﬂow to the aquifer through the action of gravity. The invention further relates to the use of mineral wool blocks in such a system, as well as to a method of producing such a system. [fig.2]
Patent NL-2022740-B1 (NL)
Title: Support structure with improved guides for an articulated-link conveyor
Inventor: SERGIO MARSETTI
IPC: B65G21/20
Filed: 2019-03-14
Granted: 2020-05-06
Abstract: A support and guide structure is described for a closed-loop articulated-link conveyor which comprises a support component and at least two guides which define respective sliding surfaces for a forward path of the articulated-link conveyor. The support component comprises at least on first surface and at least one second surface opposed to each other. The guides are fastened on the first surface, whereas at least two walls extend from the second surface and comprise respective grooves which implement a sliding support for the articulated-link conveyor in its return path. The first surface, the second surface, and the walls are integrally manufactured with a first material. The support component also comprises a plurality of cavities each designed to house one or more magnets. The cavities are obtained in the support component and are provided with respective closing plates. The guides are provided with fastening means which are reversible and removable with respect to the first surface and are manufactured with a second noble material different from the first material with which the first surface, the second surface, and the walls are integrally manufactured.
Patent NL-2025445-B1 (NL)
Title: Method for evaluating ecological risks of ammonia-nitrogen in water
Inventor: ZHENGUANG YAN
IPC: G06Q10/06
Filed: 2020-04-28
Granted: 2020-11-19
Abstract: The present invention provides a method for evaluating ecological risks of ammonia-nitrogen in water, and belongs to the technical field of ecological risk evaluation. The method comprises the following steps: 1) measuring the temperature, the pH value and the ammonia-nitrogen 5 concentration in water (exposure value) of an observation point to obtain a measured temperature, a measured pH value and a measured ammonia-nitrogen exposure concentration value; 2) substituting the measured pH value and the measured ammonia-nitrogen exposure value into the formula I to calculate a standardized biological exposure value Eu at pH 7.0; 3) substituting the measured temperature in the step 1) and En obtained in the step 2) into the 10 function shown in formula II to calculate an standardized ammonia-nitrogen exposure equivalent Eno at 20°C and pH 7.0; and 4) calculating an ammonia-nitrogen risk quotient by utilizing Eno and a benchmark value, wherein the ammonia-nitrogen risk quotient = Eno/the benchmark value. The method provided by the present invention has simple operation and small workload.
Patent NL-2027684-B1 (NL)
Title: Method of calibrating a plurality of sensors in a system for obtaining animal data from a group of animals, as well as computer program product.
Inventor: RUDIE JAN HENDRIK LAMMERS
IPC: A01K29/00
Filed: 2021-03-03
Granted: 2022-09-22
Abstract: The invention is directed at a method of calibrating a plurality of sensors in a system for obtaining animal data from a group of animals, wherein the sensors are configured to obtain measurements of an animal related parameter, wherein for obtaining the measurements the system is configured for allowing each animal to arbitrary visit one of the sensors, wherein the method comprises: obtaining, for at least one animal of the group of animals, a first measurement associated with a first sensor of the plurality of sensors; calculating one or more relations between the first measurement and one or more second measurements associated with the respective animal, wherein each of the second measurements is obtained using further sensor different from the first sensor, such as to obtain at least one representative relation for each combination of the first sensor and each one of the further sensors; and calculate, based on the at least one representative relation, a correction factor associated with at least one sensor of the plurality of sensors, for harmonizing an output signal of the at least one sensor with respect to output signals of one or more further sensors of the plurality of sensors. Fig. 1
Patent NL-2029184-B1 (NL)
Title: Printerinrichting, decryptie-inrichting en toegangsinrichting
Inventor: JELLE VAN DEN BERG
IPC: G06F3/12
Filed: 2021-09-14
Granted: 2023-03-23
Abstract: Printerinrichting, decryptie-inrichting en toegangsinrichting Een printerinrichting (10) een besturingssysteem (13) voor aansturing van een printerfunctie en toegangsmiddelen (15) die een gebruiker selectief toegang tot de printerfunctie verschaffen. De toegangsmiddelen ontvangen een toegangsverzoek (25) van een persoonlijk toegangsmiddel (20,22) van de gebruiker en leiden dit door aan het besturingssysteem (13). De toegangsmiddelen omvatten identificatiemiddelen (16,17) om een unieke verzoekidentificatie bij het toegangsverzoek te genereren en zijn in staat om het toegangsverzoek (25) tezamen met de unieke verzoekidentificatie (Z,!D) cryptografisch tot een cryptografisch versleuteld toegangsbericht (35) te coderen. Het besturingssysteem (13) is gekoppeld met decryptie- middelen (50,55) die in staat en ingericht zijn om het cryptografisch versleutelde toegangsbericht (35) te decoderen en daaruit de unieke verzoekidentificatie (Z,!D) af te leiden. De decryptie-middelen valideren het gedecodeerde toegangsverzoek (25) op basis van de unieke verzoekidentificatie (Z,!D) om een resultaat daarvan al of niet voorwaardelijk met het besturingssysteem (13) uit te wisselen.
Patent NL-2031808-B1 (NL)
Title: Method for leaching chalcopyrite
Inventor: XUEJUN ZHANG
IPC: C22B3/06
Filed: 2022-05-09
Granted: 2023-11-27
Abstract: The present disclosure provides a method for leaching chalcopyrite, belonging to the field of hydrometallurgy, comprising: (1) mixing chalcopyrite and base, and smelting to obtain pretreated chalcopyrite; (2) performing oxidative leaching by mixing the pretreated chalcopyrite obtained in said step (1) with an acid solution, a catalyst and an oxidant to obtain copper— containing leachate. The base is firstly used, to smelt chalcopyrite in present disclosure, so that crystal lattice structure of chalcopyrite is changed, the leaching of copper is easier, and leaching temperature of subsequent leaching is reduced; the addition of catalyst and oxidant during acid leaching further reduces the leaching temperature, shortens the leaching time and increases leaching rate of copper. The results of the embodiments show the leaching temperature of the leaching method provided by the present disclosure is 75 °C, the leaching time is 2 h, and the leaching rate of copper reaches 99.9% or more.
Patent RO-85235-B1 (RO)
Inventor: GEORGES CERIES
IPC: B01J8/28
Filed: 1974-08-05
Abstract: Inventia se refera la un procedeu pentru schimb de caldura între un gaz si un material pulverulent fluidizat si la un schmbator de caldura care foloseste acest procedeu. Procedeul si schimbatorul de caldura pentru materiale pulverulente fluidizate, conform inventiei este caracterizat prin faptul ca materialul pulverulent este supus operatiei de fluidizare prin degajare de gaze calde în interiorul unor tuburi verticale cu circulatie descendenta sau ascendenta sub efectul aportului caloric al gazelor calde provenite de la cuptorul rotativ, aportul caloric fiind mai mare în tuburile verticale cu circulatie ascendenta decît în tuburile verticale cu circulatie descendenta.
Patent RO-113312-B1 (RO)
Title: Process and device for dosing substances
Inventor: GOEDICKE FRANK
IPC: B01F33/40
Filed: 1994-01-11
Abstract: A process is disclosed for dosing and in particular for mixing substances, in particular for mixing at least one granulated or powdery solid with a liquid. A first substance, in particular the granulated or powdery solid, is fluidized with a continuously or intermittently supplied gas and then this homogenized gas-substance mixture is brought together and mixed in time-constant doses with a second substance. In order to dose the homogenized gas-substance mixture, gas is additionally supplied thereto before it is mixed with the second substance. Said gas is supplied so as to flow parallel to and surround the stream of gas-solids that flows into the mixing device.
Patent RO-119875-B1 (RO)
Title: Valve mounting assembly for aerosol containers and process for carrying-out said assembly
Inventor: BLAKE ROBERT R
IPC: B65D53/00
Filed: 1996-01-31
Abstract: The invention relates to a valve mounting assembly (10) for an aerosol container (12) comprising a cup (14) having a central support (19) to which is affixed the aerosol contained valve, a profiled portion (21) emerging radially downwards and outwards from the central support (19), a lateral surface (22) extending vertically from the radially outward terminus of the profiled portion (21) and ending in a flange (24) meant to receive the bead (34) of the container (12), the lateral surface (22) having an outside diameter less than the inside diameter of the bead (34) of the container (12) to which the cup (14) is to be clinched and to which a portion of the sleeve-type gasket (16) of the cup (14) is located on the lateral surface (22) of the cup (14) where the sleeve-type gasket (16) has an axial height and a radial thickness ranging from 2.032 mm to 3,81 mm, and namely from 0.762 mm to 1. 524 mm.
Patent RO-116158-B1 (RO)
Title: Jaw for autostatic spacing device
Inventor: DĂNĂILĂ LEON
IPC: A61B17/02
Filed: 1998-06-15
Abstract: The invention relates to a jaw for an autostatic spacing device, applicable to the ablation of disc hernia. According to the invention, the jaw comprises a clamping element (1) for the attachment to the autostatic spacing device, said clamping element being rigidly attached to a jaw (5) with a portion (d) and a component (f) bent at 90° and having a cross-section in the shape of a circle or an equilateral triangle with rounded corners.
Patent RO-115691-B1 (RO)
Title: Antipsoriatic ointment
Inventor: MARINESCU VIRGINIA
IPC: A61P17/16
Filed: 1998-06-17
Abstract: The invention relates to an antipsoriatic ointment comprising 1...3% collagen hydrolysate having a molecular weight of 3000...5000, 0.25...1% dithranol or antralin, 1...3% ammonia ichtyosulphonate, 1...5% salicylic acid, 0.1...0.2 vitamin E, 0.1...2% vitamin B, 65...70% salve base, 10...12% anhydrous lanolin, 2...4% beeswax, 0.2...0.3 nipagine, 0.1 nipasol, distilled water the remainder to 100% by weight.
Patent RO-119684-B1 (RO)
Title: Finely porous bioartificial tube
Inventor: BUCEVSCHI MIRCEA DAN
IPC: C08J9/28
Filed: 1998-10-06
Abstract: The invention relates to a finely porous bioartificial tube based on polyurethane and collagen hydrolysate with open fine porosity, which is biocompatible and antithrombogenic, and can be employed as a blood vessel graft in cardio-vasculary surgery. According to the invention, the bioartificial tube is made of a composite material comprising: 15...35% collagen hydrolysate three-dimensional net and 65...85% aliphatic polyurethane. The three-dimensional net comprises 60...80% collagen hydrolysate, 0.5...1,5 heparine and, for the remainder, terpolymer of butyl acrylate, ethyl acrylate and maleic anhydride.