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FR2788223A1 - MEDICO-SURGICAL DISCHARGE CANNULA - Google Patents

MEDICO-SURGICAL DISCHARGE CANNULA Download PDF

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Publication number
FR2788223A1
FR2788223A1 FR9910462A FR9910462A FR2788223A1 FR 2788223 A1 FR2788223 A1 FR 2788223A1 FR 9910462 A FR9910462 A FR 9910462A FR 9910462 A FR9910462 A FR 9910462A FR 2788223 A1 FR2788223 A1 FR 2788223A1
Authority
FR
France
Prior art keywords
cannula
grooves
channel
drainage
distal end
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR9910462A
Other languages
French (fr)
Other versions
FR2788223B1 (en
Inventor
Francis Bartolome
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from FR9900361A external-priority patent/FR2788222B1/en
Application filed by Individual filed Critical Individual
Priority to FR9910462A priority Critical patent/FR2788223B1/en
Priority to JP2000593351A priority patent/JP2002534222A/en
Priority to AU30527/00A priority patent/AU3052700A/en
Priority to EP00900559A priority patent/EP1144020A1/en
Priority to PCT/FR2000/000048 priority patent/WO2000041742A1/en
Publication of FR2788223A1 publication Critical patent/FR2788223A1/en
Application granted granted Critical
Publication of FR2788223B1 publication Critical patent/FR2788223B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621—Extra-corporeal blood circuits
    • A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3659—Cannulae pertaining to extracorporeal circulation
    • 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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/84—Drainage tubes; Aspiration tips
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/12—Blood circulatory system
    • A61M2210/125—Heart

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Cardiology (AREA)
  • Surgery (AREA)
  • External Artificial Organs (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

The invention concerns a medico-surgical cannula (1) comprising an axial channel (2) provided with a discharge orifice (3), a plurality of peripheral discharge orifices (4) and a proximal connector (5). The invention is essentially characterised in that the discharge orifices (4) emerge into the base of the grooves (6) provided at the periphery of the distal part (3) of the cannula channel (2). The invention is further characterised in that the grooves (6) are in spiral form and the channel (2) distal end (3) is tapered with decreasing cross-section from inside outwards.

Description

- 1-- 1-

CANULE DE DECHARGE MEDICO-CHIRURGICALE  MEDICO-SURGICAL DISCHARGE CANNULA

DESCRIPTIONDESCRIPTION

L'invention est relativeà une canule de décharge médico-chirurgicale du genre comportant, dans sa partie axiale, un canal pourvu, à son extrémité distale, d'une ouverture de drainage; à la périphérie de sa partie distale, une pluralité d'orifices de drainage débouchant dans ledit canal; à son extrémité proximale, un connecteur apte à relier la  The invention relates to a medico-surgical discharge cannula of the type comprising, in its axial part, a channel provided, at its distal end, with a drainage opening; at the periphery of its distal part, a plurality of drainage orifices opening into said channel; at its proximal end, a connector capable of connecting the

canule à un tube d'aspiration; ladite canule étant associée à un stylet-  cannula to a suction tube; said cannula being associated with a stylus-

mandrin apte à être inséré dans celle-ci pour lui procurer la rigidité  mandrel capable of being inserted therein to provide it with rigidity

nécessaire à son positionnement adéquate dans le coeur.  necessary for its proper positioning in the heart.

Les canules connues du genre en question présentent toutes l'incon-  The known cannulas of the genus in question all present the incon-

vénient majeur lié au collage de la paroi vasculaire contre les orifices  major event related to the bonding of the vascular wall against the orifices

de drainage. Celui-ci a pour conséquence une irrégularité dans l'aspi-  drainage. This results in an irregularity in the aspi-

ration du sang contenu dans les cavités concernées gênant considérablement  ration of blood contained in the concerned cavities disturbing considerably

le travail du chirurgien.the work of the surgeon.

C'est dans le but de remédier à cet inconvénient majeur, que le déposant a conçu une canule de décharge qui se caractérise essentiellement en ce que les orifices de drainage périphériques débouchent, à l'extérieur de la canule, dans le fond de canelures réalisées à la périphérie de  It is with the aim of remedying this major drawback that the applicant has designed a discharge cannula which is essentially characterized in that the peripheral drainage orifices open, outside the cannula, into the bottom of grooves made on the outskirts of

la partie distale de ladite canule.the distal part of said cannula.

Selon diverses particularités de l'invention: - les canelures sont en forme de spirale; - l'extrémité distale du canal de drainage est conique et à section  According to various features of the invention: - the grooves are in the form of a spiral; - the distal end of the drainage channel is conical and cross-section

décroissante de l'intérieur vers l'extérieur.  decreasing from the inside to the outside.

Les caractéristiques et les avantages de l'invention vont apparaître  The characteristics and advantages of the invention will appear

plus clairement à la lecture de la description détaillée qui suit d'au  more clearly on reading the following detailed description of

moins un mode de réalisation préféré de celle-ci donné à titre d'exemple  least one preferred embodiment thereof given by way of example

non limitatif et représenté aux dessins annexés.  nonlimiting and shown in the accompanying drawings.

Sur ces dessins: - la figure 1 est une vue de dessus de la canule selon l'invention; - la figure 2 est une vue de profil de ladite canule; - la figure 3 est une vue, en coupe longitudinale, de la partie distale de la canule; - la figure 4 est une vue en coupe partielle d'un drain pour le drainage  In these drawings: - Figure 1 is a top view of the cannula according to the invention; - Figure 2 is a side view of said cannula; - Figure 3 is a view, in longitudinal section, of the distal part of the cannula; - Figure 4 is a partial sectional view of a drain for drainage

du sang épanché intracavitaire.intracavitary effused blood.

-2- La canule représentée aux figures comporte essentiellement: - dans sa partie axiale, un canal (2) pourvu, à son extrémité distale, d'une ouverture de drainage (3); - à la périphérie de sa partie distale, une pluralité d'orifices de drainage (4) débouchant dans ledit canal (2); - à son extrémité proximale, un connecteur (5) apte à relier la canule (1)  -2- The cannula shown in the figures essentially comprises: - in its axial part, a channel (2) provided, at its distal end, with a drainage opening (3); - at the periphery of its distal part, a plurality of drainage orifices (4) opening into said channel (2); - at its proximal end, a connector (5) capable of connecting the cannula (1)

à un tube d'aspiration.to a suction tube.

La canule est associée à un stylet-mandrin apte à être inséré dans celle-  The cannula is associated with a stylet stylet capable of being inserted therein.

ci pour lui procurer la rigidité nécessaire à son positionnement adéquate  to give it the rigidity necessary for its proper positioning

dans le coeur.in the heart.

Les orifices de drainage (4) débouchent, à l'extérieur de la canule, dans le fond de canelures (6) réalisées à la périphérie de la partie  The drainage orifices (4) open, outside the cannula, into the bottom of grooves (6) produced at the periphery of the part

distale de la canule (1).distal of the cannula (1).

Cette particularité de réalisation a pour but d'éviter le collage de  This particular feature aims to avoid sticking of

la paroivasculaire en cours d'aspiration.  the paroivascular during aspiration.

Les canelures (6) peuvent être réalisées en forme de spirale.  The grooves (6) can be made in the form of a spiral.

L'angle formé par les canelures (6) et les génératrices longitudinales de la canule (1) est compris avantageusement entre 20 et 40 dont  The angle formed by the grooves (6) and the longitudinal generatrices of the cannula (1) is advantageously between 20 and 40 including

notamment 30 .including 30.

Cette particularité de réalisation a pour but de favoriser l'évacuation  This particular feature aims to promote evacuation

du flux sanguin.of blood flow.

Le matériau utilisé pour réaliser la partie distale de la canule (1) est à mémoire de forme de telle manière que, lorsque le stylet-mandrin est introduit dans la canule (1), les canelures (6) sont parallèles aux  The material used to make the distal part of the cannula (1) is shape memory such that, when the stylet stylet is introduced into the cannula (1), the grooves (6) are parallel to the

génératrices longitudinales de ladite canule et, lorsque ledit stylet-  longitudinal generatrix of said cannula and, when said stylet-

mandrin est retiré de celle-ci, les canelures retrouvent leur forme en spirale. Cette particularité de réalisation permet une introduction souple et  mandrel is removed from it, the grooves regain their spiral shape. This special feature allows flexible introduction and

non traumatisante de la canule dans le coeurou les vaisseaux.  non-traumatic cannula in the heart or vessels.

L'extrémité distale (3) du canal (2) est conique et à section déccrois-  The distal end (3) of the channel (2) is conical and of decreasing section

sante de l'intérieur vers l'extérieur.  health from the inside out.

Cette particularité de réalisation permet une meilleure aspiration car  This special feature allows better suction because

elle élimine la compétition entre les flux sanguins.  it eliminates competition between blood flows.

L'extrémité distale extérieure (7) de la canule est biseautée ou arrondie afin de permettre une meilleure introduction de celle-ci et une diminution -3-  The outer distal end (7) of the cannula is bevelled or rounded in order to allow a better introduction thereof and a reduction -3-

traumatique des zones traversées.traumatic areas crossed.

La canule peut comporter: - une première bague-repère (8) indiquant la position de l'extrémité de la canule dans l'oreillette gauche du coeur par exemple; - une deuxième bague-repère (9) indiquant la position de ladite extrémité  The cannula may include: - a first reference ring (8) indicating the position of the end of the cannula in the left atrium of the heart for example; - a second reference ring (9) indicating the position of said end

dans le ventricule gauche du coeur par exemple.  in the left ventricle of the heart for example.

La canule peut être réalisée en silicone ou en chlorure de polyvinyle en fonction de la souplesse et de la biocompatibilité recherchée mais  The cannula can be made of silicone or polyvinyl chloride depending on the flexibility and biocompatibility sought, but

également en fonction de la technique opératoire retenue par le chirurgien.  also depending on the operating technique chosen by the surgeon.

Dans la réalisation préférée de l'invention: - la canule a une longueur de 300 mm, la première bague est située à mm de l'extrémité distale et la deuxième à 50 mm de la première dans le sens proximal; - la canule a un diamètre extérieur de 7 mm et le canal un diamètre de 4 mm, l'ouverture de drainage correspondante ayant un diamètre de 3 mm; - les canelures, fraction cylindriques, ont un diamètre de 2 mm et les orifices correspondants ont un diamètre de 1 mm; - les canelures sont au nombre de 3;  In the preferred embodiment of the invention: - the cannula has a length of 300 mm, the first ring is located mm from the distal end and the second 50 mm from the first in the proximal direction; - The cannula has an outside diameter of 7 mm and the canal a diameter of 4 mm, the corresponding drainage opening having a diameter of 3 mm; - the grooves, cylindrical fraction, have a diameter of 2 mm and the corresponding orifices have a diameter of 1 mm; - there are 3 grooves;

- le nombre d'orifices par canelure est de 6.  - the number of orifices per groove is 6.

La figure 4 représente plus particulièrement un drain (10) pour le drainage de sang épanché intracavitaire (en application abdominale ou musculaire) qui comporte égalment des canelures (6) et des orifices de  FIG. 4 represents more particularly a drain (10) for the drainage of intracavitary effused blood (in abdominal or muscular application) which also includes grooves (6) and orifices of

drainage (4).drainage (4).

Il comporte, en outre, une zone élargie (11), en forme d'ogive, et un dispositif de maintien amovible (12) sur la paroi corporelle (13) traversée. Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés pour lesquels on pourra prévoir d'autres variantes, en particulier dans: - la nature des matériaux utilisés; - le nombre de canelures et d'orifices de drainage; - les dimensions des diverses parties de la canule;  It further comprises an enlarged area (11) in the shape of a warhead, and a removable holding device (12) on the body wall (13) passed through. Of course, the invention is not limited to the embodiments described and shown for which other variants can be provided, in particular in: - the nature of the materials used; - the number of grooves and drainage holes; - the dimensions of the various parts of the cannula;

- les types de stylets-mandrins utilisés.  - the types of stylet chucks used.

-4--4-

Claims (7)

REVENDICATIONS 1- Canule de décharge médico-chirurgicale (1) du genre comportant, dans sa partie axiale, un canal (2) pourvu, à son extrémité distale, d'une ouverture de drainage (3); à la périphérie de sa partie distale, une pluralité d'orifices de drainage (4) débouchant dans ledit canal (2); à son extrémité proximale, un connecteur (5) apte à relier la canule (1) à un tube d'aspiration; caractérisée en ce que les orifices de drainage (4) débouchent, à l'extérieur de la canule, dans le fond des canelures (6Tréalisées à  1- Medico-surgical discharge cannula (1) of the type comprising, in its axial part, a channel (2) provided, at its distal end, with a drainage opening (3); at the periphery of its distal part, a plurality of drainage orifices (4) opening into said channel (2); at its proximal end, a connector (5) capable of connecting the cannula (1) to a suction tube; characterized in that the drainage orifices (4) open, on the outside of the cannula, into the bottom of the grooves (6 la périphérie de la partie distale de la canule (1).  the periphery of the distal part of the cannula (1). 2- Canule, selon la revendication 1, caractérisée en ce que les  2- Cannula according to claim 1, characterized in that the canelures (6) sont en forme de spirale.  grooves (6) are in the form of a spiral. 3- Canule, selon la revendication 2, caractérisée en ce que l'angle formé par les canelures (6) et les génératrices longitudinales de la  3- Cannula according to claim 2, characterized in that the angle formed by the grooves (6) and the longitudinal generatrices of the canule (1) est compris entre 20 et 40 .  cannula (1) is between 20 and 40. 4- Canule, selon la revendication 1, caractérisée en ce que l'extrémité distale (3) du canal (2) est conique et à section décroissante  4- Cannula according to claim 1, characterized in that the distal end (3) of the channel (2) is conical and of decreasing section de l'intérieur vers l'extérieur.from the inside to the outside. - Canule, selon la revendication 1, caractérisée en ce que  - Cannula according to claim 1, characterized in that l'extrémité distale extérieure (7) de celle-ci est biseautée ou arrondie.  the outer distal end (7) thereof is bevelled or rounded. 6- Canule, selon la revendication 1, caractérisée en ce que le matériau utilisé pour réaliser la partie distale de celle-ci est à mémoire  6- Cannula according to claim 1, characterized in that the material used to produce the distal part thereof is with memory de forme de telle manière que, lorsqu'elle est associée à un stylet-  shaped so that when paired with a stylus mandrin, les canelures (6) sont parallèles aux génératrices longitudinales de ladite canule lorsque ledit stylet-mandrin est inséré dans la canule (1) et retrouvent leur forme en spirale lorsque ledit stylet-mandrin est  mandrel, the grooves (6) are parallel to the longitudinal generatrices of said cannula when said stylet-mandrel is inserted into the cannula (1) and regain their spiral shape when said stylet-mandrel is retiré de celle-ci.removed from it. 7- Canule, selon la revendication 1, caractérisée en ce que le drain (10) comporte une zone élargie (11), en forme d'ogive, et un dispositif  7- Cannula according to claim 1, characterized in that the drain (10) has an enlarged area (11), in the form of a warhead, and a device de maintien amovible (12) sur la paroi corporelle (13) traversée.  removable holder (12) on the body wall (13) through. 8- Canule, selon l'une quelconque des revendications précédentes,  8- Cannula according to any one of the preceding claims, caractérisée en ce qu'elle est réalisée en une matière choisie parmi  characterized in that it is made of a material chosen from le silicone ou le chlorure de polyvinyle.  silicone or polyvinyl chloride.
FR9910462A 1999-01-12 1999-08-12 MEDICO-SURGICAL DISCHARGE CANNULA Expired - Fee Related FR2788223B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR9910462A FR2788223B1 (en) 1999-01-12 1999-08-12 MEDICO-SURGICAL DISCHARGE CANNULA
JP2000593351A JP2002534222A (en) 1999-01-12 2000-01-11 Drainage cannula for medical surgery
AU30527/00A AU3052700A (en) 1999-01-12 2000-01-11 Medico-surgical discharge cannula
EP00900559A EP1144020A1 (en) 1999-01-12 2000-01-11 Medico-surgical discharge cannula
PCT/FR2000/000048 WO2000041742A1 (en) 1999-01-12 2000-01-11 Medico-surgical discharge cannula

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9900361A FR2788222B1 (en) 1999-01-12 1999-01-12 LEFT CARDIO-VENTRICULAR DISCHARGE CANNULA
FR9910462A FR2788223B1 (en) 1999-01-12 1999-08-12 MEDICO-SURGICAL DISCHARGE CANNULA

Publications (2)

Publication Number Publication Date
FR2788223A1 true FR2788223A1 (en) 2000-07-13
FR2788223B1 FR2788223B1 (en) 2001-09-21

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FR9910462A Expired - Fee Related FR2788223B1 (en) 1999-01-12 1999-08-12 MEDICO-SURGICAL DISCHARGE CANNULA

Country Status (5)

Country Link
EP (1) EP1144020A1 (en)
JP (1) JP2002534222A (en)
AU (1) AU3052700A (en)
FR (1) FR2788223B1 (en)
WO (1) WO2000041742A1 (en)

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EP1190732A1 (en) * 2000-09-20 2002-03-27 Lucio Gibertoni Drainage element with collection body having a circular cross-section
NL1022778C2 (en) * 2003-02-25 2004-08-26 Surge On Medical Innovations B Suction tip for microsurgery, contains auxiliary passage with mouth oriented in tip cross direction
EP1462133A3 (en) * 2003-03-28 2005-01-05 Terumo Corporation Method and apparatus for adjusting a length of the inflow conduit on a ventricular assist device
WO2005016416A1 (en) * 2003-08-08 2005-02-24 Impella Cardiosystems Gmbh Intracardiac pump device
WO2013032647A1 (en) * 2011-08-31 2013-03-07 Becton, Dickinson And Company Systems and methods to increase rigidity and snag-resistance of catheter tip
EP2712576A3 (en) * 2012-09-26 2014-07-09 David R. Ronto Dental suction tube
US9404505B2 (en) 2008-12-05 2016-08-02 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US9759237B2 (en) 2010-05-17 2017-09-12 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US9771801B2 (en) 2010-07-15 2017-09-26 Ecp Entwicklungsgesellschaft Mbh Rotor for a pump, produced with a first elastic material
US9789282B2 (en) 2008-04-22 2017-10-17 Becton, Dickinson And Company Catheter hole having a flow breaking feature
US9878079B2 (en) 2007-10-08 2018-01-30 Ais Gmbh Aachen Innovative Solutions Catheter device
US10080871B2 (en) 2012-12-21 2018-09-25 Ecp Entwicklungsgesellschaft Mbh Sheath assembly for insertion of a cord-shaped element, particularly a catheter, into the body of a patient
US10166364B2 (en) 2008-04-22 2019-01-01 Becton, Dickinson And Company Systems and methods for improving catheter hole array efficiency
US10525238B2 (en) 2011-12-22 2020-01-07 Ecp Entwicklungsgesellschaft Mbh Sheath device for inserting a catheter
US10549068B2 (en) 2008-04-22 2020-02-04 Becton, Dickinson And Company Catheter hole having an inclined trailing edge
WO2020046791A1 (en) 2018-08-27 2020-03-05 Alcyone Lifesciences, Inc. Fluid delivery systems and methods
US10610668B2 (en) 2016-10-05 2020-04-07 Becton, Dickinson And Company Catheter with an asymmetric tip
US10709828B2 (en) 2011-12-22 2020-07-14 Ecp Entwicklungsgesellschaft Mbh Sheath device for inserting a catheter
US10874781B2 (en) 2010-06-25 2020-12-29 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US10874783B2 (en) 2007-10-08 2020-12-29 Ais Gmbh Aachen Innovative Solutions Catheter device
EP3895656A4 (en) * 2018-12-11 2021-12-29 Dmax International Co., Ltd. Suction tip

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CA2710566C (en) * 2008-02-28 2015-05-12 David Hannon Fluid drainage catheter having an external flow path
WO2009108997A1 (en) * 2008-03-03 2009-09-11 Mk International Pty Ltd Catheter with friction reducing surface shaping
KR101380119B1 (en) * 2012-07-17 2014-04-01 김윤성 Cannula structure for protecting damage on the skin
KR102562165B1 (en) * 2021-01-12 2023-08-02 주식회사 삼육오엠씨(365mc) Cannula for fat inhalalation

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WO2000041742A1 (en) 2000-07-20
FR2788223B1 (en) 2001-09-21
AU3052700A (en) 2000-08-01
EP1144020A1 (en) 2001-10-17

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