FR2808991A1 - Extending internal surgical probe esp for removing blood clots has expanding head made from bending strips with saw-toothed edges - Google Patents
Extending internal surgical probe esp for removing blood clots has expanding head made from bending strips with saw-toothed edges Download PDFInfo
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- FR2808991A1 FR2808991A1 FR0006338A FR0006338A FR2808991A1 FR 2808991 A1 FR2808991 A1 FR 2808991A1 FR 0006338 A FR0006338 A FR 0006338A FR 0006338 A FR0006338 A FR 0006338A FR 2808991 A1 FR2808991 A1 FR 2808991A1
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- probe according
- head
- expandable
- extensible probe
- flexible tube
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- Pending
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- 239000000523 sample Substances 0.000 title claims abstract description 15
- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 5
- 238000005452 bending Methods 0.000 title claims abstract 3
- 208000037260 Atherosclerotic Plaque Diseases 0.000 claims description 19
- 206010003210 Arteriosclerosis Diseases 0.000 claims description 8
- 230000017531 blood circulation Effects 0.000 claims description 7
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 208000005189 Embolism Diseases 0.000 claims description 4
- 210000004204 blood vessel Anatomy 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 235000012000 cholesterol Nutrition 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 206010061216 Infarction Diseases 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 2
- 208000035475 disorder Diseases 0.000 claims description 2
- 230000007574 infarction Effects 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000001367 artery Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000010339 dilation Effects 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 206010002329 Aneurysm Diseases 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000004165 myocardium Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320725—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with radially expandable cutting or abrading elements
-
- 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
- A61F2/01—Filters implantable into blood vessels
- A61F2/0108—Both ends closed, i.e. legs gathered at both ends
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
- A61B2017/2212—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop
-
- 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
- A61F2/01—Filters implantable into blood vessels
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1095—Balloon catheters with special features or adapted for special applications with perfusion means for enabling blood circulation while the balloon is in an inflated state or in a deflated state, e.g. permanent by-pass within catheter shaft
-
- 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
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Transplantation (AREA)
- Cardiology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgical Instruments (AREA)
Abstract
Description
La présente invention a pour objet une sonde extensible interne à usage chirurgical pour la dilatation, le curetage et la protection de conduits physiologiques. The present invention relates to an internal expandable probe for surgical use for the dilation, curettage and protection of physiological conduits.
Elle se rapporte d'une manière générale au traitement par cathétérisme de conduits physiologiques et en particulier des vaisseaux sanguins. Elle est notamment indiquée pour la compression ou l'enlèvement d'athéromes consistant en une lésion de tunique interne des artères constituée de dépôts lipidiques (cholestérol), ainsi pour l'extraction de caillots risquant d'entraîner une embolie ou une thrombose, façon à diminuer les troubles circulatoires et en particulier les risques d'infarctus provoqués par l'oblitération d'un vaisseau, par exemple du myocarde. It relates generally to the catheterization treatment of physiological conduits and in particular blood vessels. It is particularly indicated for the compression or the removal of atheromas consisting of an internal lesion lesion of the arteries consisting of lipid deposits (cholesterol), as well as for the extraction of clots likely to cause embolism or thrombosis, so as to to reduce the circulatory disorders and in particular the risks of infarction caused by the obliteration of a vessel, for example of the myocardium.
Un cathéter est un tube fin, en matière synthétique, de taille variable, que l'on introduit en général sous contrôle radioscopique, notamment dans un vaisseau sanguin, pour procéder à son examen, pour y injecter ou en retirer un liquide ou pour d'autres opérations telles que la dilatation des parois ou la mise en place d'une gaine anti-anévrisme ("stent"). A catheter is a thin tube, made of synthetic material, of variable size, which is usually introduced under fluoroscopic control, in particular into a blood vessel, for examination, injection or removal of a liquid or for other operations such as the dilation of the walls or the placement of an anti-aneurysm sheath ("stent").
Cette sonde introduite par une incision bénigne dans l'artère de la cuisse du patient n'est pas mutilante et représente un atout majeur pour résoudre au mieux certains risques liés à des problèmes cardiaques très dangereux dus en particuliers à la présence d'atheromes ou de caillots dans les vaisseaux sanguins. This probe introduced by a benign incision in the artery of the thigh of the patient is not mutilating and represents a major asset to better solve certain risks related to very dangerous heart problems due in particular to the presence of atheromas or clots in the blood vessels.
Le traitement athéromes est généralement effectués au moyen d'un ballonnet gonflable monté à l'extrémité du cathéter. L'utilisation de ce dispositif présente des risques sérieux dus au fait qu'il provoque l'interruption de la circulation sanguine. En outre, il ne permet pas d'extraire l'athérome, ce entraîne souvent la nécessité d'interventions ultérieures. Atheroma treatment is usually performed by means of an inflatable balloon mounted at the end of the catheter. The use of this device presents serious risks due to the fact that it causes the interruption of the blood circulation. In addition, it does not allow the extraction of atheroma, which often leads to the need for further interventions.
Le dispositif selon la présente invention a pour objectif de remédier à ces inconvénients. II permet effet, sans interrompre la circulation sanguine, non seulement de comprimer athérome en dilatant la paroi du vaisseau, mais également d'effectuer un curetage et de l'extraire. Une variante de ce même dispositif permet filtrer le flux sanguin pour empêcher le passage de caillots et les récupérer pour éliminer. The device according to the present invention aims to overcome these disadvantages. It allows effect, without interrupting the blood circulation, not only to compress atheroma by dilating the vessel wall, but also to curettage and extract it. A variant of this same device allows filtering the blood flow to prevent the passage of clots and recover them to eliminate.
Ce système permet avec une efficacité remarquable d'obtenir des résultats très importants dans le domaine de la chirurgie liée aux affections cardiaques et vasculaires auxquels sont soumis très fréquemment les patients notre époque qui souvent développent ce type d'affection en raison d'un mode vie pas toujours en conformité avec les critères et les règles à respecter dans domaine vital. This system allows with remarkable efficiency to obtain very important results in the field of the surgery related to the cardiac and vascular affections which are very frequently subjected the patients our time which often develop this type of affection because of a mode life not always in accordance with the criteria and rules to be respected in the vital area.
Il est constitué d'un cathéter formé d'un tube souple pourvu d'une tête expansible composée d'éléments flexibles allongés formant en position ouverte une cage en forme d'ogive dont l'expansion est assurée par tirage ou rotation d'une tige de commande passant à l'intérieur du tube, les éléments flexibles étant en position de repos resserrés de manière à ce que le diamètre de la tête soit voisin de celui du tube. It consists of a catheter formed of a flexible tube provided with an expandable head composed of elongated flexible elements forming in the open position a bullet-shaped cage whose expansion is ensured by pulling or rotating a rod control member passing inside the tube, the flexible elements being in the rest position tightened so that the diameter of the head is close to that of the tube.
Sur les dessins annexés, donnés à titre d'exemples non limitatifs de formes de réalisation de l'objet de l'invention: figures 1 et 2 représentent le dispositif dans son ensemble respectivement position de repos et avec la tête expansée, la figure 3 est une coupe axiale agrandie de l'extrémité du cathéter opposé à la tête expansible, la figure 4 montre dans les même condition une variante de cette extrémité, la figure 5 est une coupe axiale agrandie de la tète d'expansion, les figures 6 et 7 représentent la tête expansible recouverte d'un filet de filtration du sang dans deux positions différentes, la figure 8 montre une tête expansible revêtue d'une enveloppe caoutchoutée perforée, la figure 9 est une coupe axiale d'une variante de la tête d'expansion pourvue d'un ressort de fermeture, la figure 9 représente un élément flexible constitué d'une lame avec bord en dents de scie et figures 11 et 12 représentent une variante d'exécution de la tête expansible respectivement en position de repos et ouverte. In the accompanying drawings, given by way of non-limiting examples of embodiments of the subject of the invention: FIGS. 1 and 2 show the device as a whole or rest position respectively and with the expanded head, FIG. an enlarged axial section of the end of the catheter opposite the expandable head, Figure 4 shows in the same conditions a variant of this end, Figure 5 is an enlarged axial section of the expansion head, Figures 6 and 7 represent the expansible head covered with a blood filtration net in two different positions, FIG. 8 shows an expandable head coated with a perforated rubberized envelope, FIG. 9 is an axial section of a variant of the expansion head. provided with a closing spring, FIG. 9 shows a flexible element consisting of a blade with a sawtooth edge and FIGS. 11 and 12 represent a variant embodiment of FIG. the expandable head respectively in the rest position and open.
Le dispositif, figures 1 à 12, est constitué d'un tube flexible 1 dans lequel coulisse tige de manoeuvre 2 et comportant à l'une de ses extrémité une tête expansible 3 et, à l'autre extrémité, une molette de commande 4 solidaire de la tige interne. The device, FIGS. 1 to 12, consists of a flexible tube 1 in which the operating rod 2 slides and comprising at one of its ends an expandable head 3 and, at the other end, a control wheel 4 integral with of the inner rod.
La tête expansible 3 est formée d'éléments cintrables 5 allongés fixés, d'une part, sur un embout creux 6 disposé à l'extrémité du tube 1 et, d'autre part, à une pièce mobile 7 montée en bout de la tige de manoeuvre 2. The expandable head 3 is formed of elongated bendable elements 5 fixed on the one hand to a hollow end 6 disposed at the end of the tube 1 and, on the other hand, to a movable part 7 mounted at the end of the rod. maneuvering 2.
Les éléments cintrables 5 sont agencés pour être sensiblement parallèles au repos à l'axe du tube 1 (figure 1) et s'ouvrir en constituant une cage en forme d'ogive lorsque la pièce mobile 7 se rapproche de l'extrémité du tube sous l'effet d'une traction exercée sur la tige de manoeuvre (figure 2). The bendable elements 5 are arranged to be substantially parallel to the rest at the axis of the tube 1 (Figure 1) and open by constituting a cage-shaped ogive when the movable part 7 is close to the end of the tube under the effect of a pull on the operating rod (Figure 2).
Cette traction est effectuée à l'aide de la molette 4 qui comportera avantageusement une partie filetée 8 ou taraudée se vissant sur un manchon 9 placé à l'extrémité du tube 1 opposé à la tête 3. This traction is performed using the wheel 4 which will advantageously comprise a threaded portion 8 or threaded screwing on a sleeve 9 placed at the end of the tube 1 opposite the head 3.
Une vis de butée 10 sera intégrée dans le manchon 8 afin d'assurer un blocage de l'ouverture des éléments cintrables 5 dont le réglage sera assuré en fonction du diamètre des canalisations à traiter, ceci pour faciliter le déplacement de l'ensemble et éviter un dysfonctionnement qui pourrait être dangereux ' cette ouverture n'était pas contrôlée. A stop screw 10 will be integrated in the sleeve 8 to ensure a blocking of the opening of the bendable elements 5 whose adjustment will be provided according to the diameter of the pipes to be treated, this to facilitate the movement of the assembly and avoid a malfunction that could be dangerous; this opening was not controlled.
La tête expansible 3 peut être rotative grâce à un embout creux 6 pourvu d'une partie tournante 11 (figure 5), la tige de manoeuvre 2 traversant dans ce cas la molette 4 et étant mise en rotation au moyen d'un bouton 12 fixé à son extrémité (figure 4). Cette disposition permet d'éviter d'avoir à faire tourner tube 1 pour entraîner la tête expansible 3, par exemple pour effectuer le curetage d'un athérome. The expandable head 3 can be rotated by means of a hollow end-piece 6 provided with a rotating part 11 (FIG. 5), the operating rod 2 passing through the wheel 4 in this case and being rotated by means of a fixed knob 12 at its end (Figure 4). This arrangement avoids having to rotate tube 1 to drive the expansible head 3, for example to perform the curettage of an atheroma.
Pour éviter une pénétration du liquide sanguin dans le tube 1, l'embout creux 6 comportera avantageusement un joint d'étanchéité de type connu (non représenté). L'ensemble du cathéter sera de préférence réalisé en matière synthétique mais pourra comporter des parties métalliques et même être entière ment fabriqué en métal. To prevent penetration of the blood liquid into the tube 1, the hollow end 6 will advantageously comprise a seal of known type (not shown). The entire catheter will preferably be made of synthetic material but may include metal parts and even be entirely made of metal.
Plusieurs options sont possibles pour adapter le dispositif à différentes utilisations - On peut obtenir une récupération des caillots de sang en transformant le dispositif en une sorte d'épuisette, les éléments cintrables 5 étant constitués de tiges flexibles qui déploieront un filet 13, 14 en tissus ajouré de nylon ou matériau similaire éventuellement caoutchouté. Ce filet sera fixé à la base (figure 6) ou au sommet (figure 7) de la tête expansible 3 suivant l'utilisation nécessaire pour cette opération. Cette variante sera très utile pour filtrer le sang d'un patient soumis à un choc par accident ou autre motif qui pourrait provoquer une embolie, en filtrant rapidement le liquide sanguin sans être dans l'obligation de transfuser le patient. Celui-ci, en conservant son sang originel, réduit les risques d'embolie créés souvent par cet apport étranger dans son organisme. Several options are possible to adapt the device to different uses - One can get a recovery of blood clots by transforming the device into a sort of net, the bendable elements 5 consist of flexible rods that deploy a net 13, 14 tissues perforated nylon or similar material optionally rubberized. This net will be fixed to the base (Figure 6) or the top (Figure 7) of the expandable head 3 according to the use necessary for this operation. This variant will be very useful for filtering the blood of a patient subjected to shock by accident or other reason that could cause an embolism, by quickly filtering the blood fluid without being obliged to transfuse the patient. This, retaining its original blood, reduces the risk of embolism often created by this foreign input in his body.
est possible au cours de la filtration de procéder à l'essorage du sang par compression des éléments cintrables 5 et du filtre permettant ainsi d'augmenter l'efficacité de l'opération. it is possible during the filtration to spin the blood by compression of the bendable elements 5 and the filter thereby increasing the efficiency of the operation.
Pour augmenter la surface de compression des athéromes avec l'utilisation du cathéter, il pourra être adapté à celui-ci une enveloppe caoutchoutée 15 recouvrant la tête expansible 3, et pourvue de perforations 16 formant tamis, ceci afin de ne pas bloquer la circulation sanguine pendant cette opération de compres sion. L'emploi caoutchouc pour cette opération est très utile en raison de la souplesse et propriétés amortissantes de ce matériau. To increase the compression surface of the atheromas with the use of the catheter, it may be adapted thereto a rubberized envelope 15 covering the expandable head 3, and provided with perforations 16 forming a sieve, so as not to block the blood circulation during this compression operation. The use of rubber for this operation is very useful because of the flexibility and damping properties of this material.
perforations 16 pourront être prévues seulement sur une moitié latérale de l'enveloppe 15, le côté opposé comportant une ou plusieurs nervures 17 dans le sens de la longueur afin de créer, lors de l'expansion de la tête 3 sur un athérome un ou plusieurs canaux facilitant la circulation sanguine après retrait du cathéter (figure 8). - Pour garantir une bonne fermeture de la tête lors du retrait du cathéter, en particulier lorsque le système est utilisé pour extraire éléments tels que morceaux d'athéromes ou autres, un ressort 18 pourra avantageusement être disposé sur la tige de manoeuvre, à l'intérieur de la tête expansible (figure 9). perforations 16 may be provided only on a lateral half of the envelope 15, the opposite side having one or more ribs 17 in the longitudinal direction to create, during the expansion of the head 3 on atheroma one or more channels facilitating blood circulation after removal of the catheter (Figure 8). In order to guarantee a good closing of the head during removal of the catheter, in particular when the system is used to extract elements such as atheroma pieces or the like, a spring 18 may advantageously be placed on the operating rod, at the inside the expandable head (Figure 9).
- Avec des éléments cintrables 5' en forme lames, on peut découper athéromes ou cholestérol et les capter à l'intérieur la cage de façon à pouvoir extraire du vaisseau. Ces lames peuvent comporter un bord en dents de scie 19 (figure 10) si les athéromes sont trop rigides pour être découpés ave une lame normale. - With flexible elements 5 'in the form of blades, one can cut atheromas or cholesterol and capture them inside the cage so as to extract the vessel. These blades may have a sawtooth edge 19 (FIG. 10) if the atheromas are too rigid to be cut with a normal blade.
Le nombre de lames coupantes fixées sur le dispositif sera variable, ceci en fonction du volume des athéromes à découper. The number of cutting blades fixed on the device will be variable, this depending on the volume of the atheromas to be cut.
Le système avec lames en forme de scie pourrait être également utilisé pour fixation ou le retrait des prothèses en spirale ("stents"). The saw blade system could also be used for attaching or removing spiral prostheses ("stents").
Avec des contre-lames fixes disposées face aux lames mobiles, on obtiendra aussi une sorte de cisaillement qui pourra faciliter la découpe des athéromes. With fixed counter-blades arranged facing the movable blades, we will also obtain a kind of shear which can facilitate the cutting of atheromas.
La tête expansible 3 pourra être amovible et interchangeable de manière à pouvoir adapter plusieurs modèles différents sur le cathéter. The expandable head 3 may be removable and interchangeable so as to adapt several different models on the catheter.
Selon une variante d'exécution, la tête expansible 3 peut être réalisée en pratiquant à la périphérie de l'extrémité d'un tube flexible 1" des fentes longitudinales 20 de manière à délimiter entre elles des éléments cintrables 5" (figures 11 12). According to an alternative embodiment, the expandable head 3 can be made by practicing at the periphery of the end of a flexible tube 1 "longitudinal slots 20 so as to delimit between them bendable elements 5" (Figures 11 12) .
Le cathéter selon l'invention pourra avantageusement être à usage unique, ce assure une plus grande sécurité hygiénique avec le minimum de risques dans fonctionnement de cet appareil. The catheter according to the invention may advantageously be disposable, this ensures greater hygienic safety with the minimum risk in operation of this device.
Plusieurs méthodes sont envisageables pour obtenir une réduction des athéromes au moyen du dispositif décrit - En injectant préalablement un liquide approprié se coagulant rapidement, on obtiendrait, par compactage avec la tête expansible 3, une diminution du volume de ces amas graisseux permettant une meilleure circulation sanguine. Several methods can be envisaged to obtain a reduction of atheromas by means of the device described. By injecting a suitable liquid that coagulates rapidly, it would be obtained, by compaction with the expandable head 3, a reduction in the volume of these fat deposits allowing better blood circulation. .
- En fixant sur ces excroissances, à l'aide du cathéter objet de l'invention, un manchon grillagé de forme adaptée tenant lieu de barrage on peu obtenir un blocage de l'expansion de l'athérome. - Fixing on these growths, with the aid of the catheter object of the invention, a mesh sleeve of suitable shape in lieu of dam can get a blocking of the expansion of the atheroma.
Dans l'industrie, un système similaire construit avec les matériaux appropriés et une dimension adaptée pourrait rendre de grands services dans certains travaux où l'on utilise des tubulures, en mer ou sur terre, dans les métiers de offshore et produits pétroliers divers, par exemple. In industry, a similar system built with the appropriate materials and a suitable size could be of great service in some works where tubing is used, at sea or on land, in offshore trades and various petroleum products, for example. example.
Le positionnement des divers éléments constitutifs donne à l'objet de l'invention un maximum d'effets utiles qui n'avaient pas été, à ce jour, obtenus par des dispositifs similaires.The positioning of the various constituent elements gives the object of the invention a maximum of useful effects that had not been obtained so far by similar devices.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0006338A FR2808991A1 (en) | 2000-05-18 | 2000-05-18 | Extending internal surgical probe esp for removing blood clots has expanding head made from bending strips with saw-toothed edges |
| PCT/FR2001/001528 WO2001087168A1 (en) | 2000-05-18 | 2001-05-18 | Extensible internal probe for surgical use, for dilatation, curettage and protection of physiological ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0006338A FR2808991A1 (en) | 2000-05-18 | 2000-05-18 | Extending internal surgical probe esp for removing blood clots has expanding head made from bending strips with saw-toothed edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2808991A1 true FR2808991A1 (en) | 2001-11-23 |
Family
ID=8850353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0006338A Pending FR2808991A1 (en) | 2000-05-18 | 2000-05-18 | Extending internal surgical probe esp for removing blood clots has expanding head made from bending strips with saw-toothed edges |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2808991A1 (en) |
| WO (1) | WO2001087168A1 (en) |
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| WO2003080166A1 (en) * | 2002-03-26 | 2003-10-02 | Halperin, Haim | Vascular coupling device |
| EP1543785A1 (en) * | 2003-12-18 | 2005-06-22 | Asahi Intecc Co., Ltd. | A basket-like medical treating tool for removing occlusive material |
| DE102005015173A1 (en) * | 2005-04-02 | 2006-10-05 | Biotronik Vi Patent Ag | Catheter arrangement to be used for avoidance of embolism, comprising expanding part made of metal foil |
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| EP4119083B1 (en) | 2021-07-13 | 2024-05-29 | Aurigen Medical Limited | A system comprising an elongated catheter and an implant detachably attached to a distal end of the elongated catheter |
| EP4465906A1 (en) | 2022-01-21 | 2024-11-27 | Julier Medical AG | Neurovascular catheter and method of use |
| IL314860A (en) * | 2022-02-11 | 2024-10-01 | Revelle Aesthetics Inc | Aesthetic treatment systems and methods |
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| US2730101A (en) * | 1954-02-23 | 1956-01-10 | Roy D Hoffman | Teat bistoury with expansible cutter knives |
| US4885003A (en) * | 1988-07-25 | 1989-12-05 | Cordis Corporation | Double mesh balloon catheter device |
| US5211651A (en) * | 1989-08-18 | 1993-05-18 | Evi Corporation | Catheter atherotome |
| EP0472368A2 (en) * | 1990-08-21 | 1992-02-26 | Med Institute, Inc. | Ablation catheter |
| EP0533321A2 (en) * | 1991-07-22 | 1993-03-24 | Dow Corning Wright Corporation | Expanding atherectomy device |
| US5295995A (en) * | 1992-08-27 | 1994-03-22 | Kleiman Jay H | Perfusion dilatation catheter |
| EP0737450A1 (en) * | 1995-04-10 | 1996-10-16 | Cordis Europa N.V. | Catheter with filter and thrombidischarge device |
| DE19722429A1 (en) * | 1997-05-28 | 1998-12-03 | Optimed Medizinische Instr Gmb | Capturing or reducing gall stones and kidney stones in hollow organs |
| WO1999044542A2 (en) * | 1998-03-05 | 1999-09-10 | Scimed Life Systems, Inc. | Distal protection device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003080166A1 (en) * | 2002-03-26 | 2003-10-02 | Halperin, Haim | Vascular coupling device |
| US7749193B2 (en) | 2002-03-26 | 2010-07-06 | Activein Ltd. | Vascular coupling device |
| EP1543785A1 (en) * | 2003-12-18 | 2005-06-22 | Asahi Intecc Co., Ltd. | A basket-like medical treating tool for removing occlusive material |
| DE102005015173A1 (en) * | 2005-04-02 | 2006-10-05 | Biotronik Vi Patent Ag | Catheter arrangement to be used for avoidance of embolism, comprising expanding part made of metal foil |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001087168A1 (en) | 2001-11-22 |
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