WO1994024941A1 - Device for removing tissue by means of endoscopy - Google Patents

Device for removing tissue by means of endoscopy Download PDF

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Publication number
WO1994024941A1
WO1994024941A1 PCT/IB1994/000084 IB9400084W WO9424941A1 WO 1994024941 A1 WO1994024941 A1 WO 1994024941A1 IB 9400084 W IB9400084 W IB 9400084W WO 9424941 A1 WO9424941 A1 WO 9424941A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
screw
proximal end
cutting edges
archimedean
Prior art date
Application number
PCT/IB1994/000084
Other languages
French (fr)
Inventor
Jacques Dequesne
Lionel Bernard
Original Assignee
Px Holding S.A.
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 Px Holding S.A. filed Critical Px Holding S.A.
Priority to AU64365/94A priority Critical patent/AU6436594A/en
Publication of WO1994024941A1 publication Critical patent/WO1994024941A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/04—Endoscopic instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00685—Archimedes screw

Definitions

  • Endoscopic surgery tends to widen its field of application more and more because with this technique we reduce the operational and post-operative risks and we greatly increase the comfort and the speed of recovery of the patient.
  • the surgeon of course has an optic and a source of cold light for lighting and observing the operating area and an apparatus fitted with a probe or a fibroid sampling device. .
  • apparatuses for sampling fibroids by suction which comprise a tube the 1'ex ⁇ end of which is generally cutting in which a depression is created.
  • the tissues or fibroids to be removed are cut and torn off by the joint action of the cutting tube and the suction, then led through the interior of the tube into a receptacle located outside the patient's body.
  • This device is not satisfactory because it does not allow precise sampling, it can damage the tissues contacted and results in suction of the liquid and other tissues than those which one wants to analyze or sample.
  • sampling devices comprising a rotating tube, the cutting end of which is inside which a clamp moves allowing it to grip a fibroid or a tissue.
  • the fibroid thus pinched part of it is cut by the cutting rotary tube and this part is evacuated through the tube by an axial withdrawal of the clamp.
  • This device can only be used if the surgeon uses both hands, so he can no longer guide the observation field himself.
  • the rotation of the cutting tube causes dispersal by centrifugal force of plots of the operated fi ⁇ bromine, causing fibroma cells or particles to spread in the patient's abdomen. If it is clever, there is a risk of arbitrary and random dissemination of cancer cells, which must be avoided at all costs.
  • the object of the present invention is to produce an endoscopic sampling device, in particular of fibroids, which obviates the above-mentioned drawbacks and allows precise and meticulous work, without risk of dissemination of fibroid particles.
  • the device must also be able to be operated with one hand.
  • the subject of the present invention is an endos ⁇ copic device for collecting, in particular fibroids or tissues from the abdomen of a patient, meeting the above-mentioned aims and overcoming the drawbacks of existing devices which are distinguished by the characteristics listed in claim 1.
  • Figure 1 illustrates a partial longitudinal section of the device.
  • Figure 2 is an end view of the device tube on a larger scale.
  • FIG. 3 is a section through the end of the tube following line III-III of FIG. 2.
  • Figure 4 is a side view of the archimedean screw housed in the tube of the device, on a larger scale.
  • FIG. 5 is an end view of the screw illustrated in FIG. 4.
  • FIG. 6 is an enlarged view of the front end of the screw illustrated in FIG. 4.
  • the endoscopic apparatus for removing tissues or fibroids generally placed in the abdomen of a patient, comprises a body 1 of generally tubular shape whose 1'ex ⁇ rear end, of larger diameter, has a cham ⁇ brage 2 and coupling means 3.
  • the middle part of this housing is pierced with a bore 4 opening through a part of larger diameter 4a in the recess 2 and passing through the front part of the housing 1a.
  • the part of the bore 4 passing through the front part 1a of the body 1 is of a larger diameter and is intended to receive the rear end of a tube 5 with which it is solida ⁇ risé.
  • This body 1 also comprises a sampling channel 6 opening into the bore 4 and having a free end provided with a tapping 7 enabling it to fix therewith a sampling container 8.
  • the tube 5, integral with the body 1, is generally made of stainless steel and has three internal longitudinal grooves 9 extending over its entire length.
  • the front end of the tube 5 is bevelled and sharpened to create a cutting edge 10.
  • This front end of the tube 5 has three notches 11 killed in the extension of the grooves or grooves 9.
  • the apparatus also comprises an archimedean screw 12 killed in operation in the tube 5 and having an external diameter corresponding to the internal diameter of said tube.
  • the front end of this screw 12 has an axial tip 13 and two curved cutting edges 14 constituting beaks 15. In the service position in the tube 5 the end of the tip 13 very slightly exceeds the end of the tube 5 while that the nozzles 15 are situated at the height of the cutting edge 10.
  • the rear part of the archimedean screw 12 stops at the right of the rear end of the tube 5 and is extended by an axis 16 whose rear end, provided with a square 17, extends in the recess 2 of the body 1.
  • a plug 18 is mounted rotating towards the axis 16 and fits into the ex ⁇ end 4a of the bore in leaktight manner using a seal 19.
  • the apparatus further comprises a motor 20 mounted in a housing 21 which can be coupled to the body 1 using the means 3, such as a bayonet coupling.
  • the drive axis 22 of the motor 20 receives the square of the axis of the screw 12 for driving the latter.
  • the drive motor 20 can be a battery motor, powered by the electrical sector, a hydraulic motor, etc.
  • a variator or other device can be provided to modify the speed of rotation of the motor shaft 22 and therefore of the screw 12.
  • the engagement and disengagement of the motor 20 as well as its speed of rotation is controlled by a control member is fixed on the housing 21 or can be actuated at the foot.
  • the surgeon only needs one hand to guide and possibly actuate the device, his other hand remaining free to actuate the lighting and observation probe.
  • the tube 5 is introduced into the patient's abdomen and its end is brought precisely to the fibroid to be removed.
  • the screw 12 is then driven in slow rotation causing the cutting of part of the fibroid and its routing inside the tube 12 in the bore 4, the conduit 6 and the container 8.
  • the fibroid sectioning is done with precision, the entire sectioned portion is routed into the container 8 and no contamination of the intervention area with cells from the fibroid sample is to be feared.
  • the parts of tissue or fibroid removed are routed smoothly and smoothly in a continuous and laminar manner by the screw 12 rotating in the tube 5.
  • the notches 11 at the end of the tube 5 cooperate with the spouts 15 and the cutting edges 14 of the screw 12 to make a clean cut of the tissues to be removed and the grooves or grooves 9 make it possible to avoid any jamming inside. of tube 5.
  • archimedean screw is very easily interchangeable, which is important because in practice its characteristics, shape of the cutting edge, cutting angle, number of threads, pitch of the screw or its nets, must be chosen according to the quality of the tissues to be sampled, in particular their density, fiber, humidity or presence of liquid bags, etc.
  • the screw being easily interchangeable the chi ⁇ rurgien can, during operation, replace one screw with another quickly and without removing the tube from the ope ⁇ rory fields.

Abstract

Device comprising a tube (5), in which is lodged an Archimedean screw (12), its front end comprising cutting edges, a device (20) for rotatably driving the screw (12) within the tube (5) and means (4, 6, 7) connecting the proximal end of the tube (5) to a container (8) for collecting the removed tissue.

Description

APPAREIL POUR LE PRELEVEMENT DE TISSUS PAR ENDOSCOPIE APPARATUS FOR TAKING TISSUE BY ENDOSCOPY
La chirurgie endoscopique tend à élargir de plus en plus son champs d'application car avec cette technique on réduit les risques opératoires et post-opératoires et on augmente grandement le confort et la rapidité de récupéra¬ tion du patient.Endoscopic surgery tends to widen its field of application more and more because with this technique we reduce the operational and post-operative risks and we greatly increase the comfort and the speed of recovery of the patient.
Depuis peu cette technique chirurgicale est utilisée pour l'ablation ou l'évacuation des fibromes ou des masses en vue de leur élimination totale.Recently this surgical technique has been used for the ablation or evacuation of fibroids or masses with a view to their total elimination.
Le chirurgien dispose bien entendu d'une optique et d'une source de lumière froide pour l'éclairage et l'ob¬ servation de la zone opératoire et d'un appareil muni d'une sonde ou d'un dispositif de prélèvement de fibrome.The surgeon of course has an optic and a source of cold light for lighting and observing the operating area and an apparatus fitted with a probe or a fibroid sampling device. .
Il existe actuellement deux types d'appareils permet¬ tant le prélèvement de tout ou partie d'un fibrome qui tous deux ne donnent pas entière satisfaction.There are currently two types of apparatus allowing the removal of all or part of a fibroid which both are not entirely satisfactory.
Tout d'abord il existe des appareils de prélèvement des fibromes par succion qui comportent un tube dont 1'ex¬ trémité est généralement coupante dans lequel on crée une dépression. Les tissus ou fibromes à prélever sont coupés et arrachés par l'action conjointe du tube coupant et de l'aspiration puis conduits par l'intérieur du tube jusque dans un réceptacle situé hors du corps du patient.First of all there are apparatuses for sampling fibroids by suction which comprise a tube the 1'ex¬ end of which is generally cutting in which a depression is created. The tissues or fibroids to be removed are cut and torn off by the joint action of the cutting tube and the suction, then led through the interior of the tube into a receptacle located outside the patient's body.
Cet appareil n'est pas satisfaisant car il ne permet pas un prélèvement précis, il peut endommager les tissus contactés et entraîne par succion du liquide et d'autres tissus que ceux que l'on veut analyser ou prélever. De plus, les différences de force de succion, les tubes se bouchant partiellement puis se vidant soudainement, ne permettent pas un travail précis.This device is not satisfactory because it does not allow precise sampling, it can damage the tissues contacted and results in suction of the liquid and other tissues than those which one wants to analyze or sample. In addition, the differences in suction force, the tubes are partially blocking then suddenly emptying, do not allow precise work.
Il existe encore des appareils de prélèvement compre¬ nant un tube rotatif dont l'extrémité est coupante à l'in¬ térieur duquel se déplace une pince permettant d'agripper un fibrome ou un tissu. Le fibrome ainsi pincé une partie de celui-ci est découpée par le tube rotatif tranchant et cette partie est évacuée au travers du tube par un retrait axial de la pince. Cet appareil ne peut être utilisé que si le chirurgien utilise ses deux mains, il ne peut donc plus lui-même guider la sonde d'observation du champ opé¬ ratoire. De plus la rotation du tube tranchant provoque une dispersion par force centrifuge de parcelles du fi¬ brome opéré provoquant une dissémination dans l'abdomen du patient de cellules ou de particules du fibrome. Si celui- ci est malin on risque une dissémination arbitraire et aléatoire des cellules cancéreuses ce qu'il faut à tout prix éviter.There are also sampling devices comprising a rotating tube, the cutting end of which is inside which a clamp moves allowing it to grip a fibroid or a tissue. The fibroid thus pinched part of it is cut by the cutting rotary tube and this part is evacuated through the tube by an axial withdrawal of the clamp. This device can only be used if the surgeon uses both hands, so he can no longer guide the observation field himself. In addition, the rotation of the cutting tube causes dispersal by centrifugal force of plots of the operated fi¬ bromine, causing fibroma cells or particles to spread in the patient's abdomen. If it is clever, there is a risk of arbitrary and random dissemination of cancer cells, which must be avoided at all costs.
La présente invention a pour but la réalisation d'un appareil endoscopique de prélèvement, notamment de fi¬ bromes, obviant aux inconvénients précités et permettant un travail précis et minutieux, sans risque de dissémina¬ tion des particules du fibrome. De plus, il faut également que l'appareil puisse être manié à l'aide d'une seule main.The object of the present invention is to produce an endoscopic sampling device, in particular of fibroids, which obviates the above-mentioned drawbacks and allows precise and meticulous work, without risk of dissemination of fibroid particles. In addition, the device must also be able to be operated with one hand.
La présente invention a pour objet un appareil endos¬ copique de prélèvement notamment de fibromes ou tissus dans l'abdomen d'un patient répondant aux buts précités et obviant aux inconvénients des appareils existants qui se distingue par les caractéristiques énumérées à la revendi¬ cation 1.The subject of the present invention is an endos¬ copic device for collecting, in particular fibroids or tissues from the abdomen of a patient, meeting the above-mentioned aims and overcoming the drawbacks of existing devices which are distinguished by the characteristics listed in claim 1.
Le dessin annexé illustre schématiquement et à titre d'exemple une forme d'exécution de l'appareil endoscopique de prélèvement selon l'invention.The accompanying drawing illustrates schematically and by way of example an embodiment of the endoscopic sampling device according to the invention.
La figure 1 illustre une coupe longitudinale partielle de l'appareil.Figure 1 illustrates a partial longitudinal section of the device.
La figure 2 est une vue en bout du tube de l'appareil à plus grande échelle.Figure 2 is an end view of the device tube on a larger scale.
La figure 3 est une coupe de l'extrémité du tube sui¬ vant la ligne III-III de la figure 2.FIG. 3 is a section through the end of the tube following line III-III of FIG. 2.
La figure 4 est une vue de côté de la vis d'archimède logée dans le tube de l'appareil, à plus grande échelle.Figure 4 is a side view of the archimedean screw housed in the tube of the device, on a larger scale.
La figure 5 est une vue en bout de la vis illustrée à la figure 4.FIG. 5 is an end view of the screw illustrated in FIG. 4.
La figure 6 est une vue agrandie de l'extrémité fron¬ tale de la vis illustrée à la figure 4.FIG. 6 is an enlarged view of the front end of the screw illustrated in FIG. 4.
L'appareil endoscopique de prélèvement de tissus ou de fibromes, généralement placés dans l'abdomen d'un patient, comporte un corps 1 de forme générale tubulaire dont 1'ex¬ trémité arrière, de plus grand diamètre, comporte un cham¬ brage 2 et des moyens d'accouplement 3. La partie médiane de ce boîtier est percée d'un alésage 4 débouchant par une partie de plus grand diamètre 4a dans le chambrage 2 et traversant la partie frontale du boîtier 1a. La partie de l'alésage 4 traversant la partie frontale 1a du corps 1 est d'un diamètre plus grand et est destinée à recevoir l'extrémité arrière d'un tube 5 avec lequel il est solida¬ risé. Ce corps 1 comporte encore un canal de prélèvement 6 débouchant dans l'alésage 4 et présentant une extrémité libre munie d'un taraudage 7 permettant d'y fixer par vis¬ sage un récipient de prélèvement 8.The endoscopic apparatus for removing tissues or fibroids, generally placed in the abdomen of a patient, comprises a body 1 of generally tubular shape whose 1'ex¬ rear end, of larger diameter, has a cham¬ brage 2 and coupling means 3. The middle part of this housing is pierced with a bore 4 opening through a part of larger diameter 4a in the recess 2 and passing through the front part of the housing 1a. The part of the bore 4 passing through the front part 1a of the body 1 is of a larger diameter and is intended to receive the rear end of a tube 5 with which it is solida¬ risé. This body 1 also comprises a sampling channel 6 opening into the bore 4 and having a free end provided with a tapping 7 enabling it to fix therewith a sampling container 8.
Le tube 5, solidaire du corps 1, est généralement ré¬ alisé en acier inoxydable et comporte trois rainures internes 9 longitudinales s' étendant sur toute sa lon¬ gueur.The tube 5, integral with the body 1, is generally made of stainless steel and has three internal longitudinal grooves 9 extending over its entire length.
L'extrémité avant du tube 5 est biseautée et affûtée pour créer une arête de coupe 10 tranchante. Cette extré¬ mité frontale du tube 5 présente trois entailles 11 si¬ tuées dans le prolongement des rainures ou cannelures 9.The front end of the tube 5 is bevelled and sharpened to create a cutting edge 10. This front end of the tube 5 has three notches 11 killed in the extension of the grooves or grooves 9.
L'appareil comporte encore une vis d'archimède 12 si¬ tuée en fonctionnement dans le tube 5 et présentant un diamètre externe correspondant au diamètre interne dudit tube. L'extrémité avant de cette vis 12 comporte une pointe axiale 13 et deux arêtes de coupe 14 incurvées constituant des becs 15. En position de service dans le tube 5 l'extrémité de la pointe 13 dépasse très légèrement l'extrémité du tube 5 tandis que les becs 15 sont situés à la hauteur de 1'arête de coupe 10.The apparatus also comprises an archimedean screw 12 killed in operation in the tube 5 and having an external diameter corresponding to the internal diameter of said tube. The front end of this screw 12 has an axial tip 13 and two curved cutting edges 14 constituting beaks 15. In the service position in the tube 5 the end of the tip 13 very slightly exceeds the end of the tube 5 while that the nozzles 15 are situated at the height of the cutting edge 10.
La partie arrière de la vis d'archimède 12 s'arrête au droit de l'extrémité arrière du tube 5 et est prolongée par un axe 16 dont l'extrémité arrière, munie d'un carré 17, s'étend dans le chambrage 2 du corps 1. Un bouchon 18 est monté tournant vers l'axe 16 et s'emboîte dans l'ex¬ trémité 4a de l'alésage de façon étanche à l'aide d'un joint 19.The rear part of the archimedean screw 12 stops at the right of the rear end of the tube 5 and is extended by an axis 16 whose rear end, provided with a square 17, extends in the recess 2 of the body 1. A plug 18 is mounted rotating towards the axis 16 and fits into the ex¬ end 4a of the bore in leaktight manner using a seal 19.
L'appareil comporte encore un moteur 20 monté dans un boîtier 21 pouvant s'accoupler au corps 1 à l'aide des moyens 3, tel un accouplement à bayonette. En position as¬ semblée du corps 1 et du boîtier 21, l'axe d'entraînement 22 du moteur 20 reçoit le carré de l'axe de la vis 12 pour l'entraînement de celle-ci.The apparatus further comprises a motor 20 mounted in a housing 21 which can be coupled to the body 1 using the means 3, such as a bayonet coupling. In the as¬ sembled position of the body 1 and of the housing 21, the drive axis 22 of the motor 20 receives the square of the axis of the screw 12 for driving the latter.
Le moteur d'entraînement 20 peut être un moteur à pile, alimenté par le secteur électrique, un moteur hy¬ draulique, etc. Un variateur ou autre dispositif peut être prévu pour modifier la vitesse de rotation de l'arbre mo¬ teur 22 et donc de la vis 12. L'enclenchement et le dé¬ clenchement du moteur 20 de même que sa vitesse de rota¬ tion est commandée par un organe de commande soit fixé sur le boîtier 21 soit pouvant être actionné au pied. Ainsi le chirurgien n'a besoin que d'une main pour guider et éven¬ tuellement actionner l'appareil, son autre main restant libre pour actionner la sonde d'éclairage et d'observa¬ tion.The drive motor 20 can be a battery motor, powered by the electrical sector, a hydraulic motor, etc. A variator or other device can be provided to modify the speed of rotation of the motor shaft 22 and therefore of the screw 12. The engagement and disengagement of the motor 20 as well as its speed of rotation is controlled by a control member is fixed on the housing 21 or can be actuated at the foot. Thus, the surgeon only needs one hand to guide and possibly actuate the device, his other hand remaining free to actuate the lighting and observation probe.
Le tube 5 est introduit dans l'abdomen du patient et son extrémité est amenée avec précision vers le fibrome à prélever. La vis 12 est alors entraînée en rotation lente provoquant le sectionnement d'une partie du fibrome et son acheminement à l'intérieur du tube 12 dans l'alésage 4, le conduit 6 et le récipient 8.The tube 5 is introduced into the patient's abdomen and its end is brought precisely to the fibroid to be removed. The screw 12 is then driven in slow rotation causing the cutting of part of the fibroid and its routing inside the tube 12 in the bore 4, the conduit 6 and the container 8.
Le sectionnement du fibrome se fait avec précision, toute la partie sectionnée est acheminée dans le récipient 8 et aucune contamination de la zone d'intervention avec des cellules du fibrome prélevé n'est à craindre.The fibroid sectioning is done with precision, the entire sectioned portion is routed into the container 8 and no contamination of the intervention area with cells from the fibroid sample is to be feared.
Enfin, l'acheminement des parties de tissus ou fibrome prélevées se fait sans heurts ni accoups de façon continue et laminaire par la vis 12 tournant dans le tube 5. Les entailles 11 de l'extrémité du tube 5 coopèrent avec les becs 15 et les arêtes de coupe 14 de la vis 12 pour effectuer une coupe franche des tissus à prélever et les rainures ou cannelures 9 permettent d'éviter tout bourrage à 1'intérieur du tube 5.Finally, the parts of tissue or fibroid removed are routed smoothly and smoothly in a continuous and laminar manner by the screw 12 rotating in the tube 5. The notches 11 at the end of the tube 5 cooperate with the spouts 15 and the cutting edges 14 of the screw 12 to make a clean cut of the tissues to be removed and the grooves or grooves 9 make it possible to avoid any jamming inside. of tube 5.
Il est à remarquer que la vis d'archimède est très fa¬ cilement interchangeable ce qui est important car en pra¬ tique ses caractéristiques, forme de l'arête de coupe, angle de coupe, nombre de filets, pas de la vis ou de ses filets, doivent être choisies en fonction de la qualité des tissus à prélever, notamment de leur densité, fibrosi- té, taux d'humidité ou présence de poches liquides, etc.It should be noted that the archimedean screw is very easily interchangeable, which is important because in practice its characteristics, shape of the cutting edge, cutting angle, number of threads, pitch of the screw or its nets, must be chosen according to the quality of the tissues to be sampled, in particular their density, fiber, humidity or presence of liquid bags, etc.
Ainsi la vis étant facilement interchangeable le chi¬ rurgien peut, en cours d'opération, remplacer une vis par une autre rapidement et sans sortir le tube du champs opé¬ ratoire. Thus the screw being easily interchangeable the chi¬ rurgien can, during operation, replace one screw with another quickly and without removing the tube from the ope¬ rory fields.

Claims

REVENDICATIONS
1. Appareil endoscopique de prélèvement, notamment de pré¬ lèvement de fibrome de la cavité abdominale, caractérisé par le fait qu'il comporte un tube; une vis d'archimède logée dans le tube dont l'extrémité frontale comporte des arêtes de coupe, un dispositif d'entraînement en rotation de la vis à l'intérieur du tube et des moyens reliant l'extrémité proximale du tube à un récipient de prélève¬ ment.1. Endoscopic sampling device, in particular for pre¬ removal of fibroma from the abdominal cavity, characterized in that it comprises a tube; an archimedean screw housed in the tube, the front end of which comprises cutting edges, a device for driving the screw in rotation inside the tube and means connecting the proximal end of the tube to a container for sample.
2. Appareil selon la revendication 1, caractérisé par le fait que l'extrémité distale du tube est biseautée et pré¬ sente des entailles.2. Apparatus according to claim 1, characterized in that the distal end of the tube is bevelled and pre¬ notches.
3. Appareil selon la revendication 2, caractérisé par le fait que la paroi interne du tube comporte des rainures longitudinales axées sur lesdites entailles.3. Apparatus according to claim 2, characterized in that the internal wall of the tube has longitudinal grooves centered on said notches.
4. Appareil selon l'une des revendications précédentes, caractérisé par le fait que la vis d'archimède s'étend sur toute la longueur du tube, que ses arêtes de coupe sont incurvées et qu'elle comporte à son extrémité distale une pointe s'étendant légèrement au delà des pointes ou becs terminaux des arêtes de coupe et donc de l'extrémité dis¬ tale du tube.4. Apparatus according to one of the preceding claims, characterized in that the archimedean screw extends over the entire length of the tube, that its cutting edges are curved and that it has at its distal end a point s 'extending slightly beyond the tips or terminal beaks of the cutting edges and therefore of the distal end of the tube.
5. Appareil 'selon l'une des revendications précédentes, caractérisé par le fait que le tube est fixé sur l'une des extrémités d'un corps tubulaire dont l'autre extrémité comporte des moyens d'accouplement d'un boîtier renfermant le dispositif d'entraînement en rotation de la vis.5. Apparatus' according to one of the preceding claims, characterized in that the tube is fixed to one of the ends of a tubular body, the other end comprises means for coupling a housing containing the device for driving the screw in rotation.
6. Appareil selon la revendication 5, caractérisé par le fait que la vis d'archimède est prolongée à son extrémité proximale par un axe d'entraînement coopérant avec l'axe moteur du dispositif d'entraînement.6. Apparatus according to claim 5, characterized in that the archimedean screw is extended at its proximal end by a drive axis cooperating with the motor axis of the drive device.
7. Appareil selon la revendication 6, caractérisé par le fait que l'axe de la vis traverse un bouchon obturant l'extrémité proximale d'un alésage traversant le corps, situé en prolongation du tube, et débouchant dans un évi- dement de la partie arrière du corps.7. Apparatus according to claim 6, characterized in that the axis of the screw passes through a plug closing the proximal end of a bore passing through the body, located in extension of the tube, and opening into a recess in the rear part of the body.
8. Appareil selon la revendication 7, caractérisé par le fait que le corps comporte un canal latéral, débouchant dans l'alésage axial, muni de moyens d'accouplement à un récipient de récupération.8. Apparatus according to claim 7, characterized in that the body comprises a lateral channel, opening into the axial bore, provided with means for coupling to a recovery container.
9. Appareil selon l'une des revendications précédentes, caractérisé par le fait que la vis d'archimède est inter¬ changeable.9. Apparatus according to one of the preceding claims, characterized in that the archimedean screw is interchangeable.
10. Appareil selon la revendication 9, caractérisé par le fait que la vis d'archimède est simplement introduite dans le tube par son extrémité proximale, le dispositif d'en¬ traînement de la vis étant fixé de façon amovible sur un corps lui-même fixé à l'extrémité proximale du tube. 10. Apparatus according to claim 9, characterized in that the archimedean screw is simply introduced into the tube by its proximal end, the device for driving the screw being detachably fixed on a body itself attached to the proximal end of the tube.
11. Appareil selon l'une des revendications précédentes, caractérisé par le fait que les caractéristiques de la vis, pas, angle de coupe, forme des arêtes de coupe, sont définies en fonction de la nature des tissus à prélever. 11. Apparatus according to one of the preceding claims, characterized in that the characteristics of the screw, pitch, cutting angle, shape of the cutting edges, are defined according to the nature of the tissue to be removed.
PCT/IB1994/000084 1993-04-30 1994-04-26 Device for removing tissue by means of endoscopy WO1994024941A1 (en)

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WO1999060934A1 (en) * 1998-05-22 1999-12-02 Ensurg, Inc. Medical device for the transportation and dissolution of fluid and matter from within the human body
US6322522B1 (en) * 1997-09-22 2001-11-27 Zimmon Science Corp. Apparatus for separable external serial collection, storage and processing of biopsy specimens
EP1383414A2 (en) * 2001-03-23 2004-01-28 Stryker Puerto Rico Limited Micro-invasive nucleotomy device and method
EP1385432A1 (en) * 2001-03-23 2004-02-04 Devonrex, Inc. Micro-invasive breast biopsy device
WO2006121970A2 (en) * 2005-05-09 2006-11-16 Boston Scientific Scimed, Inc. Device for tissue removal and for delivery of a therapeutic agent or bulking agent
WO2005084562A3 (en) * 2004-03-04 2007-08-16 Straub Medical Ag Catheter for sucking, fragmenting removing material extractable from blood vessels
US7666161B2 (en) 2004-04-27 2010-02-23 The Spectranetics Corporation Thrombectomy and soft debris removal device
US8568432B2 (en) 2008-11-27 2013-10-29 Straub Medical Ag. Catheter for aspirating, fragmenting and removing extractable material from blood vessels
US8900257B2 (en) 2009-08-27 2014-12-02 Straub Medical Ag Catheter comprising a protection system for aspirating, fragmenting and extracting removable material from hollow bodies or vessels of a human or animal body
US8920402B2 (en) 2004-04-27 2014-12-30 The Spectranetics Corporation Thrombectomy and soft debris removal device
JP2020511269A (en) * 2017-03-20 2020-04-16 ピナンブラ、インク Method and apparatus for removal of intracranial hemorrhage

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Cited By (28)

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US6322522B1 (en) * 1997-09-22 2001-11-27 Zimmon Science Corp. Apparatus for separable external serial collection, storage and processing of biopsy specimens
WO1999060934A1 (en) * 1998-05-22 1999-12-02 Ensurg, Inc. Medical device for the transportation and dissolution of fluid and matter from within the human body
EP1385432A4 (en) * 2001-03-23 2008-04-02 Stryker Puerto Rico Ltd Micro-invasive breast biopsy device
EP1383414A2 (en) * 2001-03-23 2004-01-28 Stryker Puerto Rico Limited Micro-invasive nucleotomy device and method
EP1385432A1 (en) * 2001-03-23 2004-02-04 Devonrex, Inc. Micro-invasive breast biopsy device
EP1385431A1 (en) * 2001-03-23 2004-02-04 Devonrex, Inc. Micro-invasive tissue removal device
EP1385431A4 (en) * 2001-03-23 2008-04-02 Stryker Puerto Rico Ltd Micro-invasive tissue removal device
EP1383414A4 (en) * 2001-03-23 2008-04-02 Stryker Puerto Rico Ltd Micro-invasive nucleotomy device and method
US7905896B2 (en) 2004-03-04 2011-03-15 Straub Medical Ag Catheter for aspirating, fragmenting and removing material
EP2014244A1 (en) * 2004-03-04 2009-01-14 Straub Medical AG Working head on a catheter for suction, fragmenting and removing material extractable from blood vessels.
WO2005084562A3 (en) * 2004-03-04 2007-08-16 Straub Medical Ag Catheter for sucking, fragmenting removing material extractable from blood vessels
US8114106B2 (en) 2004-03-04 2012-02-14 Straub Medical Ag Catheter for aspirating, fragmenting and removing material
NO337278B1 (en) * 2004-03-04 2016-02-29 Straub Medical Ag Catheter for suction, fragmentation and transport of removable material from blood vessels
US8920402B2 (en) 2004-04-27 2014-12-30 The Spectranetics Corporation Thrombectomy and soft debris removal device
US10517633B2 (en) 2004-04-27 2019-12-31 The Spectranetics Corporation Thrombectomy and soft debris removal device
US7666161B2 (en) 2004-04-27 2010-02-23 The Spectranetics Corporation Thrombectomy and soft debris removal device
US9808277B2 (en) 2004-04-27 2017-11-07 The Spectranetics Corporation Thrombectomy and soft debris removal device
US7959608B2 (en) 2004-04-27 2011-06-14 The Spectranetics Corporation Thrombectomy and soft debris removal device
US7806871B2 (en) 2005-05-09 2010-10-05 Boston Scientific Scimed, Inc. Method and device for tissue removal and for delivery of a therapeutic agent or bulking agent
US8517994B2 (en) 2005-05-09 2013-08-27 Boston Scientific Scimed, Inc. Method and device for tissue removal and for delivery of a therapeutic agent or bulking agent
WO2006121970A2 (en) * 2005-05-09 2006-11-16 Boston Scientific Scimed, Inc. Device for tissue removal and for delivery of a therapeutic agent or bulking agent
US9808610B2 (en) 2005-05-09 2017-11-07 Boston Scientific Scimed, Inc. Method and device for tissue removal and for delivery of a therapeutic agent or bulking agent
WO2006121970A3 (en) * 2005-05-09 2007-02-22 Boston Scient Scimed Inc Device for tissue removal and for delivery of a therapeutic agent or bulking agent
US8568432B2 (en) 2008-11-27 2013-10-29 Straub Medical Ag. Catheter for aspirating, fragmenting and removing extractable material from blood vessels
US8900257B2 (en) 2009-08-27 2014-12-02 Straub Medical Ag Catheter comprising a protection system for aspirating, fragmenting and extracting removable material from hollow bodies or vessels of a human or animal body
JP2020511269A (en) * 2017-03-20 2020-04-16 ピナンブラ、インク Method and apparatus for removal of intracranial hemorrhage
EP3600089A4 (en) * 2017-03-20 2020-12-30 Penumbra, Inc. Methods and apparatus for removal of intracranial hemorrhage
US11389186B2 (en) 2017-03-20 2022-07-19 Penumbra, Inc. Methods and apparatus for removal of intracranial hemorrhage

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