FR2641693A3 - Ultrasound instrument for action on biological tissues - Google Patents
Ultrasound instrument for action on biological tissues Download PDFInfo
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- FR2641693A3 FR2641693A3 FR8900395A FR8900395A FR2641693A3 FR 2641693 A3 FR2641693 A3 FR 2641693A3 FR 8900395 A FR8900395 A FR 8900395A FR 8900395 A FR8900395 A FR 8900395A FR 2641693 A3 FR2641693 A3 FR 2641693A3
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- working part
- ultrasonic
- conical
- instrument according
- transducer
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22004—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves
- A61B17/22012—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement
- A61B2017/22014—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire
- A61B2017/22015—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member
- A61B2017/22018—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for using mechanical vibrations, e.g. ultrasonic shock waves in direct contact with, or very close to, the obstruction or concrement the ultrasound transducer being outside patient's body; with an ultrasound transmission member; with a wave guide; with a vibrated guide wire with details of the transmission member segmented along its length
Abstract
Description
L'invention a trait aux instruments chirurgicaux et, plus particulièrement, elle se rapporte aux instruments ultrasonores pour agir sur les tissus biologiques. The invention relates to surgical instruments and, more particularly, it relates to ultrasonic instruments for acting on biological tissues.
L'invention trouve son application dans le traitement de plaies infectées, la décontamination des cavités ouvertes et fermées, et elle est particulièrement efficace pour le traitement de l'amygdalite chronique. The invention finds its application in the treatment of infected wounds, the decontamination of open and closed cavities, and it is particularly effective for the treatment of chronic tonsillitis.
On connait des instruments ultra-sonores pour le traitement de l'amygdalite chronique. Les dispositifs connus comportent une cupule spéciale dont l'on recouvre les tonsilles et qui comporte un orifice pour l'introduction de produits médicamenteux, et un instrument ultra-sonore au moyen duquel on réalise l'irradiation ultra-sonore des tonsilles par le biais du produit médicamenteux et de la cupule. Ultrasonic instruments are known for the treatment of chronic tonsillitis. The known devices include a special cup, the tonsils of which are covered and which includes an orifice for the introduction of medicinal products, and an ultrasonic instrument by means of which the ultrasound irradiation of the tonsils is carried out by means of the drug product and cup.
L'inconvénient des dispositifs connus consiste en ce que la décontamination ne se réalise essentiellement que dans la part extérieure des lacunes amygdaliennes et que l'irradiation n'intéresse pas les zones profondes desdites lacunes oh il reste une importante partie de l'infection, ce qui peut engendrer des rechutes de la maladie s'accompagnant souvent de graves complications (Vestnik otorhinolaryngologuii, NO 6, 1984, Moscou. N. V. Michenkin, V. G. Papulov, V. V. Pedler "Le traitement des malades souffrant d'amygdalite chronique par ultra-sons de basse frequence", pp. 30 a 35). The disadvantage of the known devices consists in that the decontamination is carried out essentially only in the external part of the tonsillary vacancies and that the irradiation does not interest the deep zones of the said vacancies oh there remains an important part of the infection, this which can lead to relapses of the disease often accompanied by serious complications (Vestnik otorhinolaryngologuii, NO 6, 1984, Moscow. NV Michenkin, VG Papulov, VV Pedler "The treatment of patients with chronic tonsillitis using low-level ultrasound frequency ", pp. 30 to 35).
On connaît aussi un instrument pour l'action ultra-sonore sur tissus biologiques qui comporte un transducteur en matériau piézo-actif (source de vibrations mécaniques ultra-sonores) et un élément de connexion du transducteur à une partie de travail en forme de cne ayant sur sa surface une rainure hélicoldale. Cet instrument est également utilisé pour agir sur les tissus biologiques, et dans l'amygdalite chronique, pour agir par ultra-sons sur les lacunes amygdaliennes (SU,A, 602 176). An instrument is also known for the ultrasonic action on biological tissues which comprises a transducer made of piezoactive material (source of ultrasonic mechanical vibrations) and an element for connecting the transducer to a cone-shaped working part having on its surface a helical groove. This instrument is also used to act on biological tissues, and in chronic tonsillitis, to act by ultrasound on tonsillary gaps (SU, A, 602 176).
L'inconvénient de l'instrument susmentionné con siste en son action thérapeutique insuffisante étant donné que la forme conique de la partie de travail de l'instrument ne permet pas de nettoyer convenablement les lacunes amygdaliennes de leur contenu pathologique et n'exclut pas la possibilité de traumatisation des tissus adjacents. The drawback of the aforementioned instrument is its insufficient therapeutic action since the conical shape of the working part of the instrument does not allow the amygdala gaps to be adequately cleaned of their pathological content and does not exclude the possibility trauma to adjacent tissue.
L'invention vise à fournir un instrument ultra-sonore pour l'action sur tissus biologiques qui assure le traitement des plaies infectées en une seule application grace à la création de conditons pour une élimination efficace du contenu pathologique des plaies infectées. The invention aims to provide an ultrasonic instrument for action on biological tissues which ensures the treatment of infected wounds in a single application thanks to the creation of conditions for efficient elimination of the pathological content of infected wounds.
Ce problème est résolu par un instrument ultra-sonore pour l'action sur tissus biologiques comportant un transducteur en matériau piézo-actif pour la formation de vibrations ultra-sonores, une partie de travail entrant en contact avec le tissu biologique et lui transmettant les vibrations ultra-sonores et un élément de connexion du transducteur à la partie de travail cet élément ayant une partie conique, dans lequel, selon l'invention, la partie de l'élément de connexion qui se raccorde à la partie de travail est réalisée rabattue de façon à s'écarter de l'axe longitudinal de l'instrument et la partie de travail possède des gorges transversales coniques identiques, dont la plus grande base est orientée vers le transducteur. This problem is solved by an ultrasonic instrument for action on biological tissues comprising a piezoactive material transducer for the formation of ultrasonic vibrations, a working part coming into contact with the biological tissue and transmitting the vibrations to it. ultrasonic and a connecting element of the transducer to the working part this element having a conical part, in which, according to the invention, the part of the connecting element which connects to the working part is made folded down so as to move away from the longitudinal axis of the instrument and the working part has identical conical transverse grooves, the largest base of which is oriented towards the transducer.
Il est avantageux que l'extrémité de la partie de travail qui entre en contact avec le tissu biologique soit réalisée en forme de cône tronqué et arrondi. It is advantageous that the end of the working part which comes into contact with the biological tissue is produced in the form of a truncated and rounded cone.
La partie de l'élément de connexion qui se raccorde à la partie de travail peut être rabattue de façon à s'écarter sous un angle de 8 à 150 par rapport à l'axe longitudinal de l'instrument, les gorges coniques sur la partie de travail peuvent être exécutées avec un pas dont le rapport au diamètre de la partie de travail est eqal à 0,3 à 1,5, l'angle de conicité des gorges coniques pouvant atteindre de 10 à 200. The part of the connection element which connects to the working part can be folded down so as to deviate at an angle of 8 to 150 relative to the longitudinal axis of the instrument, the conical grooves on the part can be carried out with a pitch whose ratio to the diameter of the working part is equal to 0.3 to 1.5, the conical angle of the conical grooves being able to reach from 10 to 200.
Il s'est avéré avantageux que l'élément de con nexion ait une partie cylindrique qui se place après la tartie conique, la partie de l'élément de connexion se raccordant à la partie de travail étant également réalisée cylindrique. It has been found to be advantageous for the connection element to have a cylindrical part which is placed after the tapered part, the part of the connection element connecting to the working part also being made cylindrical.
L'invention sera mieux comprise au cours de la lecture de la description explicative qui va suivre de son exécution en référence aux dessins schématiques annexés dans lesquels
- la figure 1 montre une vue générale d' instrument ultra-sonore selon l'invention
- la figure 2 montre une partie de travail de l'instrument ultra-sonore selon l'invention, en échelle agrandie.The invention will be better understood during the reading of the explanatory description which will follow from its execution with reference to the appended schematic drawings in which
- Figure 1 shows a general view of ultrasonic instrument according to the invention
- Figure 2 shows a working part of the ultrasonic instrument according to the invention, in enlarged scale.
L'instrument ultra-sonore pour l'action sur tissus biologiques selon l'invention est utilisé pour le traitement de plaies infectées, mais il est particulièrement efficace pour le traitement de l'amygdalite chronique et par suite on s'arrêtera sur le mode de réalisation de l'invention à cette fin. The ultrasonic instrument for the action on biological tissues according to the invention is used for the treatment of infected wounds, but it is particularly effective for the treatment of chronic tonsillitis and therefore we will stop on the mode of realization of the invention for this purpose.
L'instrument selon l'invention comporte un transducteur 1 (figure 1) en matériau piézo-actif pour la génération de vibrations ultra-sonores, une partie de travail 2 et un élément 3 de connexion du transducteur 1 à la partie de travail 2. The instrument according to the invention comprises a transducer 1 (FIG. 1) made of piezoactive material for the generation of ultrasonic vibrations, a working part 2 and an element 3 for connecting the transducer 1 to the working part 2.
La partie de travail 2 entre en contact au cours de l'intervention avec le tissu biologique et lui transmet les vibrations ultra-sonores provenant du transducteur 1. The working part 2 comes into contact during the intervention with the biological tissue and transmits to it the ultrasonic vibrations coming from the transducer 1.
L'élément de connexion 3 comporte une partie conique 4 et une partie 5 rabattue par rapport à l'axe longitudinal 6 de l'instrument selon l'invention et se raccordant à la partie de travail 2. The connection element 3 comprises a conical part 4 and a part 5 folded down with respect to the longitudinal axis 6 of the instrument according to the invention and connecting to the working part 2.
Après la partie conique 4, dont la longueur est égale au quart de la longueur de l'onde longitudinale, l'élément de connexion 3 a une partie cylindrique 7 d'une longueur A /2, la partie 5 étant également cylindrique et ayant une longueur fi /4. After the conical part 4, the length of which is equal to a quarter of the length of the longitudinal wave, the connection element 3 has a cylindrical part 7 of length A / 2, the part 5 also being cylindrical and having a length fi / 4.
La partie 5 de l'élément 3, qui se raccorde d la partie de travail 2 est rabattue de façon à s'écarter sous un angle de 8 à 150 par rapport à l'axe longitudinal 6. Si l'angle d'écartement de la partie 5 est inférieur à 80, l'amplitude des vibrations transversales de la partie de travail sera trop faible pour l'élargissement des lacunes amygdaliennes. Si l'angle d'écartement de la partie 5 est supérieure à 150, l'amplitude des vibrations longitudinales de la partie 2 diminue et le contenu pathologique n'est pas éliminé des lacunes. La partie de travail 2 possède des gorges coniques transversales identiques 8 (figure 2) dont la plus grande base est orientée vers le transducteur 1. The part 5 of the element 3, which is connected to the working part 2, is folded down so as to deviate at an angle of 8 to 150 relative to the longitudinal axis 6. If the angle of separation of part 5 is less than 80, the amplitude of the transverse vibrations of the working part will be too low for the enlargement of the tonsil vacancies. If the spacing angle of part 5 is greater than 150, the amplitude of the longitudinal vibrations of part 2 decreases and the pathological content is not eliminated from the gaps. The working part 2 has identical transverse conical grooves 8 (FIG. 2), the largest base of which is oriented towards the transducer 1.
Le fait de réaliser la partie 5 rabattue en combinaison avec la présence des gorges 8 sur la partie de travail assurant des vibrations longitudinales et transversales de ladite partie de travail, créent les conditions nécessaires pour le traitement en une seule application de la plaie infectée grace à l'obtention de conditions pour l'élimination efficace du contenu pathologique des plaies infectées, et surtout, des lacunes amygdaliennes.Pour l'introduction aisée et non traumatisante de la partie de travail 2 dans les plaies infectées de petite dimension, y compris dans les lacunes amygdaliennes, l'extrémité 10 de la partie de travail 2 de l'instrument selon l'invention, que l'on introduit dans le tissu biologique, est réalisée en forme de cô- ne tronqué, la petite base de ce cone étant réalisée arrondie. The fact of making the folded-down part 5 in combination with the presence of the grooves 8 on the working part ensuring longitudinal and transverse vibrations of said working part, create the conditions necessary for the treatment in a single application of the infected wound thanks to obtaining conditions for the effective elimination of the pathological content of infected wounds, and above all, tonsillary gaps. For the easy and non-traumatic introduction of working part 2 into small infected wounds, including in tonsillary gaps, the end 10 of the working part 2 of the instrument according to the invention, which is introduced into the biological tissue, is produced in the form of a truncated cone, the small base of this cone being produced rounded.
Les gorges 8 sur la partie de travail 2 sont exécutées avec un même pas "h" que l'on choisit d'après le rapport suivant : h/d = 0,3 à 1,5, où d est le diamètre de la partie de travail 2. Si le rapport du pas des gorges 8 au diamètre de la partie de travail 2 est inférieur à 0,3, il se produit une réduction de l'éjection du contenu pathologique grace à la diminution de courants de cavitation. The grooves 8 on the working part 2 are executed with the same pitch "h" which is chosen according to the following ratio: h / d = 0.3 to 1.5, where d is the diameter of the part working 2. If the ratio of the pitch of the grooves 8 to the diameter of the working part 2 is less than 0.3, there is a reduction in the ejection of the pathological content thanks to the reduction in cavitation currents.
Si le rapport est supérieur à 1,5, la traumatisation s'accroit. Les gorges coniques 8 ont une conicité de 100 à 200, un angle de conicité inférieur à 100 apportant une réduction de l'éjection du contenu pathologique et un angle de conicité supérieur à 200 accroissant la traumatisation.If the ratio is greater than 1.5, the trauma increases. The conical grooves 8 have a taper from 100 to 200, a taper angle less than 100 bringing a reduction in the ejection of the pathological content and a taper angle greater than 200 increasing the trauma.
L'instrument ultra-sonore, selon l'invention, est employé comme suit. The ultrasonic instrument according to the invention is used as follows.
Lorsqu'un signal électrique venant d'un générateur (qui ne figure pas dans les dessins) est appliqué au transducteur 1, ce dernier devient le siège de vibrations mécaniques longitudinales qui se transmettent par l'élément de connexion 3 à la partie de travail 2 qui est en contact avec le tissu biologique et qui transmet à ce dernier les vibrations mécaniques. Grâce à la réalisation de la partie de l'élément de connexion 3 en forme de cone 4 qui se raccorde au transducteur, il se produit une amplification de l'amplitude des vibrations.Une amplification supplémentaire de l'amplitude des vibrations est obtenue par accord en résonance de l'instrument selon l'invention, c'est-à-dire par choix de la longueur du cône 4 égale au quart de la longueur longitudinale > de l'onde ultra-sonore, de la longueur de la partie cylindrique 7 de l'élément de connexion 3 égale à
et et de la longueur de la partie 5 égale à H /4. When an electrical signal coming from a generator (which does not appear in the drawings) is applied to the transducer 1, the latter becomes the seat of longitudinal mechanical vibrations which are transmitted by the connection element 3 to the working part 2 which is in contact with the biological tissue and which transmits to the latter the mechanical vibrations. By virtue of the cone-shaped part of the connection element 3 which connects to the transducer, there is an amplification of the amplitude of the vibrations. An additional amplification of the amplitude of the vibrations is obtained by agreement. in resonance of the instrument according to the invention, that is to say by choice of the length of the cone 4 equal to a quarter of the longitudinal length> of the ultrasonic wave, of the length of the cylindrical part 7 of connection element 3 equal to
and and the length of part 5 equal to H / 4.
Compte tenu du fait que la partie 5 de l'élément de connexion 3 est réalisée rabattue de façon à s'écarter de l'axe de l'instrument, la partie de travail 2 vibre aussi bien dans le sens longitudinal que dans le sens transversal. Taking into account that the part 5 of the connection element 3 is made folded down so as to move away from the axis of the instrument, the working part 2 vibrates both in the longitudinal direction and in the transverse direction .
On introduit la partie de travail 2 de l'instrument selon l'invention dans la plaie infectée, par exemple dans une lacune de l'amygdale remplie de contenu pathologique. Grâce au fait que les gorges coniques 8 de la partie de travail 2 sont orientées par leur grande base 9 vers le transducteur 1 et qu'elles vibrent simultanément dans les sens longitudinal et transversal, il se produit un rejet du contenu pathologique à l'extérieur. Simultanément au nettoyage des lacunes du contenu pathologique, on obtient un important effet bactéricide aux dépens du contact des parois lacunaires avec la partie de travail 2 de l'instrument selon l'invention.The working part 2 of the instrument according to the invention is introduced into the infected wound, for example in a gap in the tonsil filled with pathological content. Thanks to the fact that the conical grooves 8 of the working part 2 are oriented by their large base 9 towards the transducer 1 and that they vibrate simultaneously in the longitudinal and transverse directions, there is a rejection of the pathological content to the outside . Simultaneously with the cleaning of the gaps in the pathological content, a significant bactericidal effect is obtained at the expense of the contact of the lacunar walls with the working part 2 of the instrument according to the invention.
L'essai clinico-expérimental de l'instrument selon l'invention pour le traitement de l'amygdalite chronique a porté sur 5 porcelets et 10 chiens avec un modèle d'inflammation chronique des amygdales pharyngiennes. On a effectué une seule action de l'instrument ultra-sonore selon l'invention sur les lacunes amygdaliennes des animaux soumis à l'expérience. A la suite de ladite action, les phénomènes réactifs et inflammatoires ont disparu avec un résultat thérapeutique positif et sans s'accompagner d'effets rétroactifs négatifs sur les organes et systèmes d'importance vitale, ce qui a permis de passer aux essais cliniques. The clinical-experimental trial of the instrument according to the invention for the treatment of chronic tonsillitis involved 5 piglets and 10 dogs with a model of chronic inflammation of the pharyngeal tonsils. A single action of the ultrasonic instrument according to the invention was carried out on the tonsillar vacancies of the animals subjected to the experiment. Following this action, the reactive and inflammatory phenomena disappeared with a positive therapeutic result and without being accompanied by negative retroactive effects on organs and systems of vital importance, which made it possible to move on to clinical trials.
Le traitement de l'amygdalite chronique utilisant l'instrument ultra-sonore selon l'invention a été réalisé chez 25 malades. L'effet clinique a été obtenu à la suite d'une unique action de l'instrument selon l'invention sur les lacunes amygdaliennes durant une à deux minutes. Au terme de cet essai, on a constaté que le traitement des amygdales au moyen de l'instrument selon l'invention ne provoque pas de complications. Dans deux cas, on a constaté des phénomènes d'ordre réactif se traduidant par une hausse de la température corporelle. The treatment of chronic tonsillitis using the ultrasonic instrument according to the invention was carried out in 25 patients. The clinical effect was obtained following a single action of the instrument according to the invention on the tonsillar gaps for one to two minutes. At the end of this test, it was found that the treatment of the tonsils by means of the instrument according to the invention does not cause complications. In two cases, reactive phenomena were observed, resulting in an increase in body temperature.
Les particularités constructives de l'instrument selon l'invention permettent de traumatiser au minimum les tissus adjacents. La simplicité et l'accessibilité du traitement à l'aide de l'instrument selon l'invention permettent d'utiliser ce dernier dans des conditions extra-hospitalières et ne présente pratiquement aucune contre-indication à son emploi. La durée du traitement se réduit très nettement, sans que les malades aient la nécessite d'être hospitalisés. The constructive features of the instrument according to the invention make it possible to traumatize at least the adjacent tissues. The simplicity and accessibility of the treatment using the instrument according to the invention makes it possible to use the latter under extra-hospital conditions and presents practically no contraindication for its use. The duration of the treatment is reduced very clearly, without the patients having the need to be hospitalized.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8900395A FR2641693B3 (en) | 1989-01-13 | 1989-01-13 | ULTRA-SOUND INSTRUMENT FOR ACTION ON ORGANIC TISSUES |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8900395A FR2641693B3 (en) | 1989-01-13 | 1989-01-13 | ULTRA-SOUND INSTRUMENT FOR ACTION ON ORGANIC TISSUES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2641693A3 true FR2641693A3 (en) | 1990-07-20 |
| FR2641693B3 FR2641693B3 (en) | 1990-12-28 |
Family
ID=9377710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8900395A Expired - Fee Related FR2641693B3 (en) | 1989-01-13 | 1989-01-13 | ULTRA-SOUND INSTRUMENT FOR ACTION ON ORGANIC TISSUES |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2641693B3 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992011815A2 (en) * | 1991-01-11 | 1992-07-23 | Baxter International Inc. | Ultrasonic angioplasty device incorporating transmission member and ablation probe |
| US5267954A (en) * | 1991-01-11 | 1993-12-07 | Baxter International Inc. | Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels |
| US5324255A (en) * | 1991-01-11 | 1994-06-28 | Baxter International Inc. | Angioplasty and ablative devices having onboard ultrasound components and devices and methods for utilizing ultrasound to treat or prevent vasopasm |
| US5342292A (en) * | 1991-11-04 | 1994-08-30 | Baxter International Inc. | Ultrasonic ablation device adapted for guidewire passage |
| US5368558A (en) * | 1991-01-11 | 1994-11-29 | Baxter International Inc. | Ultrasonic ablation catheter device having endoscopic component and method of using same |
| US5368557A (en) * | 1991-01-11 | 1994-11-29 | Baxter International Inc. | Ultrasonic ablation catheter device having multiple ultrasound transmission members |
| US5380274A (en) * | 1991-01-11 | 1995-01-10 | Baxter International Inc. | Ultrasound transmission member having improved longitudinal transmission properties |
| US5382228A (en) * | 1992-07-09 | 1995-01-17 | Baxter International Inc. | Method and device for connecting ultrasound transmission member (S) to an ultrasound generating device |
| US5390678A (en) * | 1993-10-12 | 1995-02-21 | Baxter International Inc. | Method and device for measuring ultrasonic activity in an ultrasound delivery system |
| US5405318A (en) * | 1992-05-05 | 1995-04-11 | Baxter International Inc. | Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels |
| US5417672A (en) * | 1993-10-04 | 1995-05-23 | Baxter International Inc. | Connector for coupling an ultrasound transducer to an ultrasound catheter |
| US5427118A (en) * | 1993-10-04 | 1995-06-27 | Baxter International Inc. | Ultrasonic guidewire |
| WO1999044515A1 (en) * | 1998-03-02 | 1999-09-10 | Mentor Corporation | Ultrasonic liposuction probe |
| US5957882A (en) * | 1991-01-11 | 1999-09-28 | Advanced Cardiovascular Systems, Inc. | Ultrasound devices for ablating and removing obstructive matter from anatomical passageways and blood vessels |
| US5997497A (en) * | 1991-01-11 | 1999-12-07 | Advanced Cardiovascular Systems | Ultrasound catheter having integrated drug delivery system and methods of using same |
| US6689086B1 (en) | 1994-10-27 | 2004-02-10 | Advanced Cardiovascular Systems, Inc. | Method of using a catheter for delivery of ultrasonic energy and medicament |
| US10258505B2 (en) | 2010-09-17 | 2019-04-16 | Alcon Research, Ltd. | Balanced phacoemulsification tip |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8623040B2 (en) | 2009-07-01 | 2014-01-07 | Alcon Research, Ltd. | Phacoemulsification hook tip |
-
1989
- 1989-01-13 FR FR8900395A patent/FR2641693B3/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380274A (en) * | 1991-01-11 | 1995-01-10 | Baxter International Inc. | Ultrasound transmission member having improved longitudinal transmission properties |
| US5368558A (en) * | 1991-01-11 | 1994-11-29 | Baxter International Inc. | Ultrasonic ablation catheter device having endoscopic component and method of using same |
| US5267954A (en) * | 1991-01-11 | 1993-12-07 | Baxter International Inc. | Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels |
| US5304115A (en) * | 1991-01-11 | 1994-04-19 | Baxter International Inc. | Ultrasonic angioplasty device incorporating improved transmission member and ablation probe |
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| WO1992011815A2 (en) * | 1991-01-11 | 1992-07-23 | Baxter International Inc. | Ultrasonic angioplasty device incorporating transmission member and ablation probe |
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| US5405318A (en) * | 1992-05-05 | 1995-04-11 | Baxter International Inc. | Ultra-sound catheter for removing obstructions from tubular anatomical structures such as blood vessels |
| US5382228A (en) * | 1992-07-09 | 1995-01-17 | Baxter International Inc. | Method and device for connecting ultrasound transmission member (S) to an ultrasound generating device |
| US5427118A (en) * | 1993-10-04 | 1995-06-27 | Baxter International Inc. | Ultrasonic guidewire |
| US5417672A (en) * | 1993-10-04 | 1995-05-23 | Baxter International Inc. | Connector for coupling an ultrasound transducer to an ultrasound catheter |
| US5390678A (en) * | 1993-10-12 | 1995-02-21 | Baxter International Inc. | Method and device for measuring ultrasonic activity in an ultrasound delivery system |
| US6689086B1 (en) | 1994-10-27 | 2004-02-10 | Advanced Cardiovascular Systems, Inc. | Method of using a catheter for delivery of ultrasonic energy and medicament |
| WO1999044515A1 (en) * | 1998-03-02 | 1999-09-10 | Mentor Corporation | Ultrasonic liposuction probe |
| US10258505B2 (en) | 2010-09-17 | 2019-04-16 | Alcon Research, Ltd. | Balanced phacoemulsification tip |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2641693B3 (en) | 1990-12-28 |
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| ST | Notification of lapse |