baber/WOPTO huggingface dataset:
Patent EP-1099606-B1 (EP)
Title: Systeme d'appel d'urgence a fonction de protection contre le vol
Inventor: SETO HITOSHI
IPC: B60R25/33
Filed: 1999-05-18
Granted: 2009-03-04
Abstract: L'invention concerne un système d'appel d'urgence à fonction de protection contre le vol, qui utilise une unité arithmétique et de commande (2) pour mettre un véhicule en mode de protection contre le vol ou en mode d'utilisation, en fonction d'informations provenant d'un centre d'AIDE ou d'un téléphone cellulaire d'un utilisateur habituel, par l'intermédiaire d'une unité de transmission de données (7) ou d'une unité d'exploitation (5), et qui détermine avec précision, sous le contrôle de l'unité arithmétique et de commande (2), l'occurrence d'un vol de véhicule en fonction d'informations de position ponctuelle du véhicule obtenues par une unité capteur gyro/récepteur GPS (4) et d'informations, telles que la décision d'authentification d'ID, le nombre de tentatives d'authentification, la position ouverte ou fermée des portières et le temps écoulé pendant lequel la portière est maintenue fermée.
Patent EP-1191891-B1 (EP)
Inventor: FRIGG ROBERT
IPC: A61B17/80
Filed: 1999-07-07
Granted: 2003-06-18
Abstract: The invention is related to a fastener and a bone fixation assembly for the internal fixation of vertebral bodies. The bone fastener includes a shank having a longitudinal axis, a head positioned adjacent the top end of the shank and having at least two portions separable in the axial direction. The head includes a bottom portion connected to the shank and a top portion connectable to the bottom portion. The bottom portion defines a socket situated coaxially to the longitudinal axis to accept a driver to rotate the fastener, and the top portion has an exterior with a convex design.
Patent EP-1210184-B1 (EP)
Inventor: TERUGGI PIERGIORGIO
IPC: B08B3/10
Filed: 1999-06-16
Granted: 2005-03-09
Abstract: A plant for the continuous washing of plastic material in scales. The plant having a washing apparatus, at least one filtering unit connected to the apparatus for purifying the washing fluid and means for varying the time the scales remain in the washing apparatus as a function of the quantity of scales contained at that same moment in the same apparatus.
Patent EP-1084038-B1 (EP)
Inventor: ASKREN BENJAMIN ALAN
IPC: B41J2/16
Filed: 1999-06-03
Granted: 2004-09-15
Abstract: La présente invention concerne une cartouche améliorée pour imprimante à jet d'encre qui comprend un support de substrat (90) ou une partie bec sur laquelle on monte des dispositifs semi-conducteurs destinés aux têtes d'imprimante à jet d'encre. Le support de substrat possède une surface supérieure (100) qui comprend un ou plusieurs puits (92) de positionnement du substrat, chacun des puits possédant des parois de puits (98) et un fond de puits, au moins une fente d'alimentation en encre étant faite dans le fond de puits et dans les parois latérales, fixées à la surface supérieure sur le pourtour de celle-ci. Une ou plusieurs parois latérales possèdent des nervures (110) destinées à l'évacuation de la chaleur depuis le support de substrat et au moins deux dispositifs d'alignement, fixés à côté d'au moins une paroi latérale et destinés à aligner avec précision le support de substrat dans une cartouche d'imprimante. L'un des avantages du support de substrat réside en ce qu'il constitue un moyen efficace d'alignement de substrat pour substrats multiples, un moyen de refroidissement de substrats multiples, un moyen de fixation rigide ou amovible du support à un boîtier de réservoir d'encre ainsi qu'un moyen permettant d'aligner de façon précise le support et le boîtier de réservoir dans un chariot d'imprimante.
Patent EP-1075204-B1 (EP)
Inventor: WALTER HUBERT ERIC
IPC: A47J39/00
Filed: 1999-04-26
Granted: 2004-12-08
Abstract: The meals are heated in a closed space by means of induction heating coils and high-temperature steam. The high temperature steam is generated by using inductively produced heat to evaporate an amount of water specific to the meals being heated. The water may be supplied to a partially open channel, a pipe or a porous body, at least part of which comprises an electrically conductive material. An independent claim is also included for apparatus for heating meals.
Patent EP-1100855-B1 (EP)
Inventor: CHERKAOUI ZOUBAIR
IPC: C08J5/18
Filed: 1999-07-14
Granted: 2004-11-10
Abstract: Compounds for use in the preparation of polymerizable liquid crystalline mixtures, liquid crystalline polymers and optical devices prepared from such mixtures and polymers. The compounds include novel compounds comprising an organosiloxane portion and a portion having a structure that is compatible with a mesogenic molecular architecture.
Patent EP-1104488-B1 (EP)
Inventor: ANDERSON STEPHEN
IPC: G06F17/00
Filed: 1999-07-21
Granted: 2006-10-25
Abstract: The present invention provides a structure-functional analysis engine for the high-throughput determination of the biochemical function of protein domains of unknown function, as exemplified in the flowchart of the figure. The present invention uses bioinformatics, molecular biology and nuclear magnetic resonance tools for the rapid and automated determination of the three-dimensional structures of proteins and protein domains.
Patent EP-1150949-B1 (EP)
Inventor: SOROKIN VICTOR D
IPC: C07B61/00
Filed: 1999-09-23
Granted: 2004-04-07
Abstract: Disclosed is a composition of (1) a substituted benzaldehyde having the general formula where X is a leaving group in the ortho or para position, (2) a mercaptide having the general formula MSR' in an amount about stoichiometric to about 20 mole % in excess of stoichiometric with the amount of said substituted benzaldehyde, where M is an alkali metal and R' is alkyl or haloalkyl from C1 to C8 or aryl, aralkyl, or alkyl from C6 to C12, (3) sufficient water to dissolve said mercaptide and MX, (4) about 0.1 to about 5 mole %, based on said substituted benzaldehyde, of a phase transfer catalyst, and (5) 0 to about 100 wt %, based on total composition weight, of a water-immiscible organic solvent. Heating the composition to a temperature between about room temperature and 100 DEG  C. results in the formation of a substituted mercapto-benzaldehyde.
Patent EP-1137966-B1 (EP)
Inventor: CROWELL JOHN ARNOLD
IPC: A61B6/00
Filed: 1999-10-29
Granted: 2005-06-15
Abstract: An apparatus for automatically positioning and orienting a digital X-ray detector array and synchronizing movement of the digital X-ray detector array with an X-ray emission apparatus to provide simultaneous rotational and translational array movement between a first landscape position and a second portrait position, along a reference axis common to both. Dual plates are attached to one another via a bearing. The first plate (23) is disposed for translational movement along guide rails (22). A motor (27) attached to the first plate is used to rotate the second plate (24) relative to the first plate. As the second plate rotates, a cam follower (26) is forced to move along a cam track (21). The shape of the cam track is designed to result in translational movement of the overall system as the cam follower moves along the cam track.
Patent EP-1140335-B1 (EP)
Inventor: BABENKO VICTOR V
IPC: B01F1/00
Filed: 1999-12-30
Granted: 2010-09-08
Abstract: Skin friction reduction on a surface moving relative to a fluid can be obtained by ejecting a polymer-water mixture/solution into the boundary layer. The efficacy of the ejected polymer-water mixture/solution is closely related to polymer dissipation out of the boundary layer and conditioning (i.e, lengthening, unwinding or stretching) of the polymer molecules by liquid shear forces immediately before ejection. The invention is a method and apparatus for conditioning and ejecting a polymer-water mixture/solution that improves drag reduction characteristics of the mixture/solution and maintains the mixture/solution in the boundary layer for as long as possible. By improving the drag-reduction characteristics of the polymer-water mixture/solution and by extending the time it remains in the near-wall region, the ejector can increase the performance and reduce the volume and storage requirements of a drag-reduction system. Although this invention was intended for polymer-water mixture/solution ejection, it can be used for ejection of any substance into a flowing fluid.
Patent EP-1121633-B1 (EP)
Inventor: LIU JUNG-JEN
IPC: G06F13/12
Filed: 1999-10-07
Granted: 2004-01-14
Abstract: An apparatus for dispatching a processing element to a program location based on a channel number of received data includes a channel pointer register having a number of storage locations each with a channel number field, a valid bit field and a corresponding instruction pointer field. When an isochronous channel is allocated for use for reception, the host device programs the channel number and a corresponding instruction pointer value into a storage location. When a storage location is programmed, a valid bit within that storage location is also preferably set. The corresponding instruction pointer value points to a series of instructions which are to be used to process data received on that isochronous channel. When isochronous data is then received, the channel number on which the data is received is compared to the channel numbers within the valid storage locations in the channel pointer register. If one of the channel numbers within a valid storage location matches the channel number of the received data, then the corresponding instruction pointer value is output and the data is processed according to a series of instructions beginning at the location specified by the corresponding instruction pointer value. Otherwise, if the channel number of the received data does not match any of the channel numbers within valid storage locations then a default instruction pointer value is output and the received data is processed according to a series of instructions beginning at the location specified by the default instruction pointer value.
Patent IT-1276125-B1 (IT)
Title: Precasting in prefabrication
Inventor: MONACHINO MOSE
IPC: E04C/
Filed: 1993-06-30
Granted: 1997-10-27
Abstract: "Precasting in prefabrication" is a production technique for prefabricated cement manufactures which is capable of shortening product prefabrication times yielding a product fully consistent with good practice. <IMAGE>
Patent IT-1279367-B1 (IT)
Inventor: DELMORE MICHAEL D
IPC: B65B9/213
Filed: 1994-08-10
Granted: 1997-12-10
Abstract: A mechanism for the actuation of spreading elements (60) of a packaging machine is disclosed. The mechanism has an electromagnet (70). The mechanism allows the actuation of the spreading elements (60), without a structure being required in the shaping tube (20) of the packaging machine. <IMAGE>
Patent IT-1284074-B1 (IT)
Title: Fractionation of air to produce oxygen@ and/or nitrogen@ - using single column giving high purity and high extraction efficiency
Inventor: RAGONESE ANTONINO
IPC: F25J/
Filed: 1996-06-26
Granted: 1998-05-08
Abstract: An apparatus for fractionating air, or a mixture of oxygen and nitrogen, for the simultaneous production of nitrogen and oxygen or for the production of nitrogen. A fractionating column (1) has an intake duct (2) for air, or a mixture of oxygen and nitrogen, under pressure, a nitrogen discharge duct (4) at the top of the column, and a discharge duct (3) for oxygen, or the ternary mixture of oxygen, nitrogen and argon, at the base of the column. A closed circuit gas-based refrigeration cycle (6) consists of a compressor (7); an exchange line for bringing the refrigeration gas to a temperature close to liquefaction; a first heat exchanger (8) acting as condenser for the cycle and evaporating the oxygen or ternary mixture; a second heat exchanger (9) for subcooling the gas leaving the first exchanger; an expander (10); and a third heat exchanger (11) which acts as an evaporator for the cycle and condenses nitrogen at the top of the column for reflux. Also claimed is a method for simultaneously producing oxygen and nitrogen, or for producing nitrogen by fractionating air, or a mixture of oxygen and nitrogen, in a fractionating column.
Patent IT-1291291-B1 (IT)
Inventor: DI NAPOLI GUIDO
IPC: A61K31/728
Filed: 1997-04-30
Granted: 1999-01-07
Abstract: Described herein is the use of hyaluronic acid or of one of its pharmaceutically acceptable salts for the preparation of a formulation for intra-articular irrigation, in the form of an aqueous solution, comprising hyaluronic acid having molecular weight of between 0.5 and 5.0 million daltons or one of its pharmaceutically acceptable salts, in a concentration of between approximately 0.1% and approximately 0.9% weight/volume, and preferably one or more cationic species chosen from among sodium, potassium, calcium and magnesium, and one or more anionic species chosen from among chloride ions, phosphate ions and citrate ions.
Patent IT-1302601-B1 (IT)
Inventor: CECUR MAJO
IPC: F01L1/26
Filed: 1998-10-05
Granted: 2000-09-29
Abstract: A valve train assembly for an internal combustion engine comprises a common carrier which supports the engine's rocker arms by means of individual fulcra each of which preferably forms a part of a hydraulic lash adjuster. Each rocker arm is constructed by deforming a metal sheet into a channel shape, the deformation also forming a part-spherical surface for mating with a surface of the fulcrum. The rocker arms can be snap-fitted on to the fulcra by means of an apertured, resilient sheet.
Patent IT-1308778-B1 (IT)
Title: Piloting circuit for a DC motor inductive load which prevents damage to the piloting transistor in the event of supply voltage reversal
Inventor: AVIDANO MAURIZIO
IPC: H02J/
Filed: 1999-07-02
Granted: 2002-01-10
Abstract: The piloting circuit has a branch circuit (3) which is intended to be connected to a DC supply (4) with a predetermined polarity. The drain-source path of a MOSFET transistor (5) intended to receive an on-off piloting signal on its gate is connected in series with the motor load (2). A current recirculation diode (7) is connected in parallel with the load. Circuit protection devices (14) prevent damage to the MOSFET and diode in the event of polarity reversal of the supply voltage.
Patent IT-1314669-B1 (IT)
Title: Retrofit equipment for use in a gas turbine to produce solar energy, involves supplying hot exhaust gases to gas turbine boiler from the solar unit
Inventor: BRONICKI LUCIEN Y
IPC: F03G6/06
Filed: 1999-09-10
Granted: 2002-12-31
Abstract: The retrofit equipment (10) includes an auxiliary gas turbine unit (20A), auxiliary compressor (14A) and solar collector (15A). When solar insolation is available the retrofit equipment supplies hot exhaust gases to the gas turbine boiler (25) instead of the fossil fuel burner. Independent claims are included for a method and apparatus for generating power using synthetic gas.
Patent JP-2940610-B1 (JP)
Title: キー溝付き穴成形用パンチ及びその製造方法
IPC: B21J13/02
Filed: 1998-04-30
Granted: 1999-08-25
Abstract: 【要約】
【課題】キー溝付き穴を有する部品を圧造加工により比 較的簡単に且つ精度よく得ることのできるパンチ及びそ のパンチの製造方法を得る。
【解決手段】穴５に嵌合する軸７が内接する断面矩形形 状の成形頭部１０を形成し、成形頭部１０の軸方向の少 なくとも一つの平面１２に軸７の外周表面から部品４の 穴５に形成されたキー溝６の深さに等しいあるいは僅か に高い高さ（Ｈ）のキー溝成形突起１３を設け、更に、 成形頭部１０及びキー溝成形突起１３の後端側が角度 （β）だけ軸芯方向に傾斜したキー溝付き穴成形用パン チであるので、同一精度のキー溝付き穴を簡単に圧造成 形で形成することができるとともに短時間に所望の部品 が安価に得られる。また、加工精度も安定した部品が大 量に得られる。更に、穴と軸との関係が比較的小径で も、キー溝位置がずれることもない。その上、穴を形成 するパンチを切削加工で簡単且つ安価に得ることができ る。
Patent JP-3071192-B1 (JP)
Title: バイブレ―ション形搬送装置
IPC: B65G27/04
Filed: 1999-05-28
Granted: 2000-07-31
Abstract: 【要約】
【課題】バイブレーション形搬送装置による食品包袋の 分散効果を向上する。
【解決手段】搬送手段としてバイブレーションモーター により振動を与えられる振動搬送プレート１を備え、該 振動搬送プレート１の上記振動により同搬送プレート１ 上に載置された食品包袋３をその搬入端２ａから搬出端 ２ｂへ搬送するようにしたバイブレーション形搬送装置 において、上記振動搬送プレート１の搬入端２ａの上面 に該搬入端２ａへ供給される食品包袋３が落下される分 散台４を振動搬送プレート１と一体に振動するように配 設し、該分散台４上に落下された食品包袋３を該分散台 ４の上記振動により上記振動搬送プレート１上へ分離し 落下するように構成したバイブレーション形搬送装置。
Patent JP-2941794-B1 (JP)
Title: 補綴用軸体保持装置
IPC: A61B17/58
Filed: 1998-07-24
Granted: 1999-08-30
Abstract: 【要約】
【目的】  曲げ加工されたロッド即ち軸体を効果的にね じ止め可能とする。
【構成】  軸体１１の軸方向の曲がりを吸収するため に、軸体１１を保持する保持部１２の両端に形成された 整形部１７、１７を有する。止めねじ１６の軸方向とほ ぼ直交し、かつ直線的断面形状を持つ締結部１８を上記 整形部間に設け、止めねじ１６により軸体１１を保持部 １２に止め着ける。
Patent JP-3126122-B1 (JP)
IPC: C21C7/10
Filed: 1999-08-19
Granted: 2001-01-22
Abstract: There are provided a gas blowing plug with a long life and a manufacturing method therefor. The gas blowing plug for blowing gas from the bottom of a molten metal vessel comprises a slit-shaped gas passage ranging from the bottom to the top of the plug. The gas passage is formed by a continuous or discontinuous slit-shaped gas passage in the horizontal cross section of the plug, and is formed by a slit-shaped gas passage continuous from the bottom to the top of the plug and a discontinuous slit-shaped gas passage in the vertical cross section of the plug. The cross-sectional shape of a tubular body can be a star shape, for example.
Patent JP-2972739-B1 (JP)
Title: 積層体
IPC: B32B5/26
Filed: 1998-08-19
Granted: 1999-11-08
Abstract: 【要約】
【課題】軽量で、しかも十分な強度と剛性を有するパネ ルとして好適な積層体を提供する。
【解決手段】天然繊維を含む不織布からなる充填材とポ リプロピレンなどの熱可塑性の結合材からなる中心層の 表裏両面に、ポリプロピレン繊維をスパンボンド法で製 造した不織布からなる熱可塑性結合材層と、ポリエステ ル繊維をスパンボンド法で製造した不織布からなる被覆 層とを積層して構成し、中心層の不織布を構成する繊維 の繊維径を被覆層の不織布を構成する繊維の繊維径より 大きくすることにより、熱プレスで融解される結合材層 の樹脂を毛細管現象によって、被覆層に確実に浸透さ せ、被覆層を緻密で堅牢な皮膜に形成して、この皮膜で 比較的粗な中心層を包み込み、これにより、軽量で高剛 性なパネルを形成する。
Patent JP-2990605-B1 (JP)
Title: 含浸液の分離装置
IPC: B22D29/00
Filed: 1998-10-09
Granted: 1999-12-13
Abstract: 【要約】
【課題】  従来技術では行なえなかった上下方向の深い 穴の液切りと水洗を充分に行ないうると共に、ワーク内 部の必要部分にのみ含浸液を残し、ワークの表面やねじ 穴その他の含浸液の付着をきらう部分の含浸液の分離を 行ないうる含浸液の分離装置を提供する。
【解決手段】  架台１上に回転可能に支持した回転台２ に設けた中空支持軸３内にクランプ軸４を同芯に設け、 クランプ軸４を内外方向に移動可能に設けることで、ク ランプ軸４に接続したクランプアーム５の先端部で回転 台２上のワーク７を掴むと共に、中空支持軸３を回転台 ２ごとクランプアーム５、クランプ軸４とワーク７を同 一芯にて垂直回転するようにする。
Patent JP-2954212-B1 (JP)
Title: 放射性廃棄物の溶融処理装置
IPC: G21F9/30
Filed: 1998-10-12
Granted: 1999-09-27
Abstract: 【要約】
【課題】  溶融炉容器の腐食や損傷を防止でき、且つ安 全性、信頼性が高く、設置スペースが少なくて済み、運 転やメンテナンスも容易に行えるようにする。
【解決手段】  冷却される溶融炉容器２２と、その中で 加熱される溶融物２８とが直接接触しない状態を維持し つつ溶融処理する方式の高温溶融炉によって放射性廃棄 物を溶融処理する装置である。多数のヒートパイプ３０ を、それらの蒸発部側を配列して溶融炉容器を構成し、 セル内に設置する。各ヒートパイプを延長して、それら の凝縮部側をセル外に引き出し、各ヒートパイプの凝縮 部側に冷却手段（水冷配管３４）を付設する。溶融炉容 器と溶融物との間に凝固物の層を形成しつつ、例えば高 周波誘導コイル３４により誘導加熱する。ヒートパイプ は、ナトリウムを作動流体として封入容器に封入した構 造が好ましい。
Patent MD-2599-B1 (MD)
Title: Condiment din legume
Inventor: STASHKOV EUGEN
IPC: A23L27/14
Filed: 2003-10-29
Abstract: Inventia se refera la industria alimentaraŹ in special la producerea condimentelor din legume.Condimentul propus contine ardei iute cu fractia masica a umiditatii de cel mult 50%Ź usturoiŹ ceapaŹ ulei vegetalŹ tomate uscateŹ miere naturalaŹ sare de bucatarieŹ seminte de coriandruŹ verdeata uscata de patrunjelŹ mararŹ leustean si de cimbrisorŹ seminte de busuiocŹ piper negruŹ frunze de dafinŹ cardamon si hmeli-suneliŹ totodata fractia masica a umiditatii in produsul finit nu depaseste 50%Ź iar ingredientele sunt luate in urmatorul raportŹ in % de masa:ardei iute cu fractia masica a umiditatii de cel mult 50% 25Ź0...35Ź0usturoi 		25Ź0...35Ź0ceapa 		10Ź0...17Ź0ulei vegetal 	5Ź0...10Ź0tomate uscate 	2Ź0...10Ź0miere naturala 	3Ź0...7Ź0sare de bucatarie 	3Ź0...4Ź0seminte de coriandruŹ verdeata uscata de patrunjelŹ mararŹ leustean si de cimbrisorŹ seminte de busuiocŹ piper negruŹ frunze de dafinŹ cardamon si hmeli-suneliluate in parti masice egale 3Ź0...10Ź0.Rezultatul inventiei consta in obtinerea produsului cu un continut sporit de componente biologic active si indici organoleptici inalti. ŕ
Patent NO-317608-B1 (NO)
Inventor: SERRES ALAIN
IPC: D21D5/02
Filed: 2001-08-24
Abstract: Process for the filtration of paper pulp with a device that comprises a rotor and a stator; one of the two, filter (1), has perforations of slot or hole types, and the other, the backwashing element, includes means that are intended to generate pressure pulses that consist in combatting the gradual clogging of the perforations of the filter and the gradual flocculation of the pulp during the creep of the pulp between the rotor and the stator by creating deflocculation zones and/or increasing the relative speed between the pulp and the backwashing elements.
Patent NO-333141-B1 (NO)
Inventor: ROSSI FRANCESCO
IPC: C08K9/04
Filed: 2001-10-12
Abstract: A filler (1) is envisioned which comprises glass-based granules (2) provided with a sizing composition, in which filler each of the granules (2) consists of a multiplicity of milled glass fragments (3) agglomerated together by the agency of a sizing composition (4) containing especially a compound chosen from esters of alkylsilicic acids, particularly an aminosilane. The process comprises a milling step (6) during which the glassy material is comminuted into fragments by this milling, a metering step (7) during which a mixture including the fragments (3) and the sizing composition (4) is formed and an agglomeration step (8) during which the mixture is dried so as to form granules each including a multiplicity of fragments (3) and dried parts of the sizing composition (4).
Patent NO-330775-B1 (NO)
Inventor: DAVIS SAMUEL
IPC: A61P17/02
Filed: 2001-12-10
Abstract: Modified chimeric polypeptides with improved pharmacokinetics are disclosed useful for treating eye disorders, including age-related macular degeneration and diabetic retinopathy.
Patent NO-324762-B1 (NO)
Inventor: FORTE UBALDO LO
IPC: A23P30/40
Filed: 2002-08-06
Abstract: The invention relates to confectionery of long shelf-life in the form of a soft, creamy, foamed mass of stable form, comprising milk components, edible fats, sugar and/or artificial sweeteners and water, whereby at least part of the edible fat is in crystalline form at room temperature. The confectionery contains no lactose crystals which may be detected by the consumer, the milk protein content is 6 to 20 wt. %, the fat-free milk dry mass is in the range of 16 to 55 wt. % and the denaturation level of the milk protein is <=20%.
Patent NO-330245-B1 (NO)
Inventor: BOHN MANFRED
IPC: A61K8/00
Filed: 2002-09-06
Abstract: A preparation comprising a combination of a topical and a systemic antimycotic and a physiologically acceptable lacquer base is suitable for the treatment and prophylaxis of onychomycoses. Preference is given to the use of water-insoluble lacquer preparations and a combination of at least one systemic antimycotic from the group of itraconazole, terbinafine and fluconazole or salts thereof with at least one topical antimycotic from the group of ciclopirox, 6-(2,4,4-trimethylpentyl)-1-hydroxy-4-methyl-2(1H)pyridone, amorolfine and butenafine or salts thereof.
Patent NO-327206-B1 (NO)
Inventor: GROSSEHOLZ WERNER
IPC: A22C25/12
Filed: 2003-04-08
Abstract: In a process to gut fish (10), the fish ventral zone is presented to a guided (20) tool (21) for an incision along the mid-axis and removal of abdominal viscera. The tool position relative to the abdomen is monitored (30) by a sensor (31) linked to a computer (32) which compares the actual position of the tool (21) with the target position and corrects the position as required. An independent claim is also included for an assembly with a sensor (31) incorporating both a sender and receiver. The sender (312) is a light source. The receiver is a light wave guide (311).