FR2598905A1 - Device for interrupting the flow of a fluid in a duct with a flexible wall, in particular a hollow viscus and clamp assembly comprising this device - Google Patents

Device for interrupting the flow of a fluid in a duct with a flexible wall, in particular a hollow viscus and clamp assembly comprising this device Download PDF

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Publication number
FR2598905A1
FR2598905A1 FR8607284A FR8607284A FR2598905A1 FR 2598905 A1 FR2598905 A1 FR 2598905A1 FR 8607284 A FR8607284 A FR 8607284A FR 8607284 A FR8607284 A FR 8607284A FR 2598905 A1 FR2598905 A1 FR 2598905A1
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characterized
jaw
jaws
rod
end
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FR2598905B1 (en
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CHEVALIER JEAN MICHEL
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CHEVALIER JEAN MICHEL
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • A61B17/122Clamps or clips, e.g. for the umbilical cord
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/12Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/28Surgical forceps
    • A61B17/2812Surgical forceps with a single pivotal connection
    • A61B17/282Jaws

Abstract

This device for interrupting the flow of a fluid in a duct with a flexible wall, in particular a hollow viscus such as a blood vessel by squashing, comprises two jaws 1, 2 each delimiting a surface 3 for bearing on the duct 4 and means for locking the two jaws with respect to each other in a clamping position. These locking means comprise two rods 5 solidly attached at one of their ends to the jaw 2 and adapted in order to perforate via their other end, the duct 4 in order to pass through it so as to be received and held in the jaw 1, thereby keeping the duct 4 squashed. This device is capable of being implanted permanently into an organism in order to interrupt any flow in the duct 4 once and for all. <IMAGE>

Description

La présente invention est relative aux dispositifs d'interruption de la circulation d'un fluide dans un conduit a paroi souple. The present invention relates to interrupt the circulation of a fluid in a conduit means has a flexible wall. notamment un viscère creux tel qu'un vaisseau sanguin, un arbre aérien pulmonaire ou un tube digestif, comportant deux mors délimitant chacun une surface d'appui sur le conduit. including a hollow viscus such as a blood vessel, a pulmonary air shaft or a digestive tract, comprising two jaws each defining a bearing surface on the conduit.

destinés a pincer transversalement entre leurs surfaces d'appui ce conduit pour l'écraser, et des moyens de blocage des deux mors l'un par rapport à l'autre en position de serrage. for pinching transversely between their bearing surfaces that leads to crush, and blocking means of the two jaws relative to each other in the clamping position.

On connait dans la technique antérieure. Are known in the prior art. des dispositifs d'interruption du type précité dont les moyens de blocage comportent une tige prévue a ue extrémité des deux mors de sorte que le dispositif présente dans son ensemble à peu prés la forme d'un LI. interrupt devices of the above type whose locking means comprise a pin provided has eu end of the two jaws so that the device as a whole roughly the shape of an IPM.

Les moyens de verrouillage prévus dans ce type de dispositif d'interruption comportent soit des dents formant crémaillére sur la tige et coopérant avec un cliquet solidaire du mors correspondant ou un ressort qui coopere avec la tige pour rapprocher les deux mors l'un de 1 autre par coulissement de ladite tige. The locking means in this type of switching device include either teeth forming a rack on the rod and cooperating with a pawl corresponding jaw or a spring which cooperates with the rod to bring the two jaws of one another 1 by sliding of said rod.

Cependant, ce type de dispositif ne peut étre implanté définitiuement au sein d'un organisme et sert seulement a interrompre momentanément la circulation dans le conduit écrasé pendant de l'on réalise une ligature dudit conduit par une méthode classique. However, this type of device can be implanted définitiuement within a body and only serves to interrupt the circulation in the conduit crushed during the ligation is carried out of said conduit by a conventional method.

Afin de remédier å cet inconvénient. Å To remedy this inconvenience. 1 ln- vention a pour but de fournir un dispositif d'interruption qui soit susceptible d'étre implanté définitivement dans un organisme. 1 ln- vention is intended to provide an interrupt device which is likely to be permanently implanted in an organism.

A cet effet. For this purpose. l'invention a pour objet un dispositif d'interruption du type précité, caractériu en ce que les moyens de blocage comportent au moins une tige en saillie sur la surface d'appui d'un mors dont elle est solidaire et adaptée pour coopérer par son extrémité correspondante avec des moyens de verrouillage portés par 3'autre mors. the invention relates to an interruption device of the aforementioned type, caractériu in that the locking means comprise at least one projecting pin on the support surface of a jaw which it is fixed and adapted to cooperate by its corresponding end with locking means carried by 3'autre jaws.

Suivant d'autres caractéristiques According to other features
- L'extrémité de chaque tige destinée a être verrouillée dans le mors correspondant. - The end of each rod intended to be locked in the corresponding jaw. est acérée pour perforer et traverser le conduit écrasé. is sharp to pierce through and led crushed.

- Les moyens de verrouillage sont réglables afin d'ajuster l'écartement entre les mors. - The locking means are adjustable to adjust the spacing between the jaws.

- Les moyens de verrouillayp de chaque tige comprennent une ou plusieurs saillies espacées axialement au voisinage de l'extrémité correspondante de la tige. - Means verrouillayp of each rod include one or more projections axially spaced adjacent the corresponding end of the rod. un trou respectif ménagé dans la surface d'appui du mors correspondant pour recevoir ladite extrémité de la tige et des moyens pour retenir cette tige dans le trou. a respective hole in the bearing surface of the corresponding jaw for receiving said end of the stem and means for retaining the rod in the hole.

- Chaque trou comporte une première partie voisine de la surface d'appui du mors correspondant, de section à peu prés correspondante i celle de la tige, cette premiére partie étant adaptée pour être traversée a force par la ou chaque saillie par déformation élastique de cette partie de trou etlou des saillies et. - Each hole has a first portion adjacent the bearing surface of the corresponding jaw, section substantially corresponding meadows i that of the rod, this first part being adapted to be traversed by a force the or each projection by elastic deformation of this andlor hole portion and projections. une deuxième partie de trou de section élargie. a second portion of enlarged section hole. prolongeant la première partie en direction opposée de la surface d'appui en délimitant entre ces parties de trou, un épaulement contre lequel une saillie est destinée a venir en butée pour verrouiller et retenir la tige en place dans le mors correspondant. extending the first opposite direction of the bearing surface defining between these parts of the hole, a shoulder against which a projection is intended to come into abutment to lock and retain the rod in place in the corresponding jaw.

- Les moyens de retenue de chaque tige dans le trou respectif. - The means for retaining each pin in the respective hole. comprennent au moins un alésage coupant transversalement ce trou, chaque alésage étant adapté pour recevoir une clavette de retenue de la tige dans le trou correspondant par venue en butée d'une saillie sur la clavette. comprise at least one bore cutting through this hole, each bore being adapted to receive one of the rod retaining key in the corresponding hole by abutment of a projection on the wedge.

- chaque saillie présente la forme d'une barbelure de fléche comportant un bord incliné orienté en direction de l'extrémité de la tige et un bord å peu prés radial orienté en direction opposée de l'extrémité de cette tige et destiné à coopérer avec les moyens de retenue de la tige respective. - each projection has the shape of a barb having an inclined arrow pointed towards the end of the shaft edge and a little radial near edge directed away from the end of this rod and designed to cooperate with the retaining means of the respective rod.

L'invention a également pour objet un ensemble de pince chirurgicale, comportant une pince a deux branches articulées entre elles, cette pince comportant a une extrémité une partie de préhension et à l'autre extrémité une partie active, caractérise en ce que cette pince est associée a un dispositif d'interruption tel que défini ci-dessus, chacun des mors formant un mors de la pince en étant disposé au niveau de la partie active d'une branche respective de cette pince. The invention also relates to a set of surgical clip having a clip has two arms hinged together, said clamp having at one end a grip part and at the other end an active portion, characterized in that this clamp is associated to an interruption device such as defined above, each of the jaws forming the forceps jaws being provided at the active portion of a respective leg of this clamp.

Suivant d'autres caractéristiques de cet ensemble de pince According to other characteristics of this gripper assembly
- il est prévu des moyens d'accouplement dégageables et engageables par translation ou coulissement relatif entre chaque branche et le mors correspondant. - it is provided with coupling means engageable and disengageable by relative sliding or translation between each leg and the corresponding jaw.

- Les moyens d'accouplement comprennent des formes a peu prés complémentaires les unes des autres prévues sur les branches et sur les mors. - The coupling means include forms a little further apart fields provided on the branches and on the jaws.

- Les moyens d'accouplement de chaque mors comprennent une nervure formée sur le mors ou sur la branche respective de la pince et une rainure a section transversale de a peu près forme complémentaire de celle de la nervure, formée respectivement sur la branche ou sur le mors, cette rainure ayant une extrémité ouverte pour l'engagement et le dégagement par translation de la nervure associée. - The coupling means of each jaw comprise a rib formed on the jaw or on the respective leg of the clamp and has a groove cross section of a substantially complementary shape to the rib, formed on the leg or on respectively the jaws, said groove having an open end for engagement and disengagement by translation of the associated rib.

- Les nervures sont formées sur les mors. - The ribs are formed on the jaw.

- Les nervures sont formées chacune sur une face du mors respectif opposée a sa surface d'appui. - The ribs are each formed on an opposite side of the respective jaws has its bearing surface.

En variante. Alternatively. les moyens d'accouplement de chaque mors comprennent une nervure formée sur le mors et une fente formée sur la branche respective. the coupling means of each jaw comprise a rib formed on the jaws and a slot formed on the respective leg. cette fente ayant une extrémité ouverte pour l engagement et le dégagement par translation d'au moins une partie de la nervure associée. said slot having an open end for engagement and disengagement by translating at least a portion of the associated rib.

Les parois latérales des nervures viennent en butée contre les parois latérales des rainures ou des fentes. The side walls of the ribs abut against the side walls of the grooves or slits. en s'opposant au dégagement des nervures par traction dans une direction transversale à la direction de translation de celles-ci dans les rainures ou les fentes. by opposing the disengagement of the ribs by pulling in a direction transverse to the direction of translation thereof into the grooves or slots.

Les nervures viennent en butée contres les faces extérieures des branches opposées aux faces intérieures en regard l'une de l'autre de ces branches, en s'opposant au dégagement des nervures par traction dans une direction transversale à la direction de translation de celles-ci dans les rainures ou les fentes. The ribs abut counters the outer sides of opposing legs to the inner faces facing each other of these branches, opposing to the disengagement of the ribs by pulling in a direction transverse to the direction of translation of celles- latter in the grooves or slots.

- Les rainures ou les fentes s'étendent suivant la longueur des branches et débouchent chacune à l'extrémité de la branche respective, voisine de la partie active de cette branche. - The grooves or slots extend along the length of the legs and each open at the end of the respective leg, close to the active part of this branch.

L'invention sera mieux comprise à la lecture de la description qui va suivre, d'un mode de réalisation donné uniquement a titre d'exemple, et faite en référence aux dessins annexés. The invention will be better understood from reading the following description of an embodiment given only as an example, and with reference to the accompanying drawings. sur lesquels on which ones
- la Fig.1 est une vue schématique illustrant le dispositif d'interruption de l'invention en place sur un viscère creux tel qu'une veine - Fig.1 is a schematic view illustrating the interruption device of the invention in place on a hollow organ such as a vein
- la Fig.2 est une vue en perspective du dispositif de l'invention illustrant divers moyens de verrouillage des tiges - Fig.2 is a perspective view of the device of the invention illustrating various rods locking means
- la Fig.3 est une vue en coupe, a plus grande échelle, prise suivant la ligne 3-3 de la - 3 is a sectional view, on a larger scale, taken along the line 3-3 of
Fig.2; Fig.2; et and
- la Fig.# est une vue en perspective d'un ensemble 'de pinces comportant le dispositif d'interruption de l'invention. -. Fig # is a perspective view of a set 'clamps comprising the interruption device of the invention.

Le dispositif illustré sur les. The device shown. Fig.1 à 3, comprend deux mors 1 et 2 présentant chacun à peu prés la forme d'une barrette et délimitant chacun sur une de leurs faces, une surface d'appui 3 présentant transversalement une forme convexe (Fig.2). Fig.1 to 3, comprises two jaws 1 and 2 each having approximately the form of a strip and each defining on one side thereof, a bearing surface 3 having transversely a convex shape (Fig.2). Ces surfaces sont destinées â venir en appui contre un viscère creux ou d'une manière générale un conduit a paroi souple pour écraser ce dernier en y interrompant toute circulation de fluide. These surfaces are destined to abut against a hollow viscus or generally a flexible wall leads to crush it, interrupting any fluid flow there.

Ce dispositif d'interruption de circulation est destiné â ëtre implanté définitivement dans un organisme et comporte a cet effet des moyens de blocage des deux mors '1 et 2 en position serrée sur le conduit s qui comprennent deux tiges 5 solidaires chacune à une de leurs extrémités du mors 2 en étant on saillie sur la surface d'appui 3 de ce mors. This flow interruption device is intended to be permanently implanted in an organism and for this purpose comprises means for locking the two jaws' 1 and 2 in the clamped position on the pipe s that comprise two rods 5 each fixed at one of their ends of the jaw 2 being one projection on the bearing surface 3 of the jaws.

L'extrémité de chaque tige 5 opposée au mors 2 est pointue et donc acérée de façon a perforer et traverser le conduit s pour étre reçue après avoir traversé ce conduit, dans le mors 1 a l'intérieur duquel ces extrémités sont retenues par verrouillage en bloquant ainsi les deux mors 1 et 2 l'un par rapport å 1 autre en position serrée sur le conduit. The end of each rod 5 opposite the jaw 2 is sharp and therefore sharp so as to pierce and pass through the conduit s to be received after crossing the duct, in the jaw 1 has within which these ends are retained by locking in thereby locking the two jaws 1 and 2 one relative to another one in the clamped position on the conduit.

Dans le mode de réalisation représenté sur les Figures, les tiges 5 sont solidarisées au mors 2 par moulage du corps de ce mors autour d'un pied 6 de section élargie prévu au niveau de l'extrémité correspondante de chacune des tiges 5. In the embodiment shown in the figures, the rods 5 are fixed to the jaw 2 by molding the body of the jaw around an enlarged section 6 of the foot provided at the corresponding end of each of the rods 5.

Les tiges 5 ont une section circulaire et comportent chacune å leur extrémité opposée au pied 6 correspondant, une série de saillies 7 latérales annulaires analogues à des barbelures de flèche espacées axialement au voisinage de l'extrémité de la tige 5 The rods 5 have a circular section and each comprise at their end opposite the foot corresponding 6, a series of projections 7 side like annular arrow at spaced barbs axially adjacent the end of the shaft 5
Ces saillies 7 présentent ainsi chacune une face 8 inclinée et orientée en direction de l'extrémi- té libre de la tige correspondante et une face 9 à peu prés radiale orientée dans la direction opposée. These protrusions 7 and 8 each have an inclined face and facing towards the free side extremities of the corresponding rod and a surface 9 oriented substantially radially approximately in the opposite direction.

c'est-â-dire en direction du pied 6 associé. that is to say in the direction of the associated foot 6.

En position serrée des mors, chaque tige est reçue dans un trou 10 respectif traversant de part en part le mors 1 à partir de sa surface d'appui 3 pour déboucher sur sa face opposée. In the clamped position of the jaws, each rod is received in a 10-respective through hole right through the jaw 1 from its bearing surface 3 to lead to its opposite face. Chaque trou comporte une première partie 11 voisine de la surface d'appui 3 qui se prolonge par une deuxiéme partie 12 de section élargie par rapport a cette premiére partie 11. débouchant sur la face du mors 1 opposée a sa surface d'appui 3. Cette deuxième partie 12 du trou 10 délimite avec la première partie 11. un épaulement annulaire 13 contre lequel la face 9 d'une saillie 7 est destinée à venir en butée pour verrouiller l ex- extrémité correspondante de la tige dans le mors 1.La section de la première partie 11 du trou 10 est å peu près correspondante a celle de la tige 5 de sorte que les saillies 7 traversent cette première partie de trou par déformation élastique des parois de cette partie de trou et/ou des saillies 7 elles-memes selon que le matériau dans lequel est formée cette première partie de trou et/ou celui dans lequel sont formées les saillies 7 est élastique ou non. Each hole has a first portion 11 adjacent to the bearing surface 3 which is extended by a second portion 12 of enlarged section relative to said first portion 11 opening on the side of the jaw 1 opposite to its contact surface 3. this second part 12 of the hole 10 defines with the first part 11 an annular shoulder 13 against which the front 9 of a projection 7 is designed to come into abutment to lock the former corresponding end of the rod into the jaw 1.La section of the first portion 11 of hole 10 is approximately corresponding to that of the rod 5 so that the projections 7 through the first hole portion by elastic deformation of the walls of this hole portion and / or projections 7 them- same as the material in which is formed the first hole portion and / or in which are formed the projections 7 is elastic or not. Pour compléter les moyens de verrouillage qui viennent d'être décrits, le mors 1 comporte deux alésages 14 de section trapèzoidale qui s'étendent chacun longitudinalement à l'intérieur du mors 1 en débouchant a au moins une extrémité longitudinale de ce mors.Les alésages 14 s'étendent à peu prés parallèlement l'un à l'autre de part et d'autre des trous 10 en coupant ces derniers partiellement et transversalement au niveau de l'extrémité de la deuxième partie de trou 1-2 voisine de la première partie de trou 11. To complete the locking means described above, the jaw 1 comprises two bores 14 of trapezoidal section, each extending longitudinally within the jaw 1 in the opening has at least one longitudinal end of said bores mors.Les 14 extend approximately parallel to each other on either side of the holes 10 by cutting the latter partially and transversely at the end of the second hole portion adjacent to the first 1-2 hole portion 11.

chaque alésage 14 est destiné à recevoir à coulissement. each bore 14 is intended to slidably receive. une clavette C de forme complémentaire à cet alésage, chaque clavette C étant destinée à retenir les tiges 5 dans le mors 1 en coopérant avec la face 9 radiale d'une saillie 7 de chacune des tiges 5. a complementary C-shaped wedge bore, each key being C for retaining the rods 5 in the jaw 1 by cooperating with the radial face 9 with a protrusion 7 of each of the rods 5.

On voit d'aprés la Fig.2 que le choix de la section trapézoidale pour les alésages 14 et les clavettes C a pour but de permettre a ces clavettes C de combler la cavité séparant la face 9 de la saillie 7 avec laquelle cette clavette vient en butée et la face 8 de la saillie T suivante. It is seen from Fig.2 that the choice of the trapezoidal section to the bores 14 and the pins C aims to enable these keys C to fill the cavity between the face 9 of the protrusion 7 with which the key comes into abutment and the face 8 of the projection T next.

En variante, les premiers moyens de verrouillage mettant en oeuvre les deux parties de trou 11 et 12 délimitant l'épaulement 13 et les deuxiémes moyens de verrouillage mettant en oeuvre les clavettes Alternatively, the first locking means implementing the two hole parts 11 and 12 delimiting the shoulder 13 and the second locking means implementing the wedges
C, peuvent être utilisés indépendamment l'un de l'au- tre. C, can be used independently of the au be. Dans le cas ou seules les clavettes C seraient prévues. In case only the C keys are provided. le trou 10 ne pourrait comporter qu'une seule partie avec un diamètre permettant de recevoir librement a coulissement les saillies 7. the hole 10 could have only one portion with a diameter for receiving a freely sliding the projections 7.

Par ailleurs, Si l'on préfère utiliser deux clavettes C, il n'en reste pas moins envisageable d'utiliser une seule de ces clavettes et donc de ne prévoir qu'un seul des alésages 14. De plus, le dispositif de l'invention peut comporter plus de deux tiges 5 ou une seule tige. Moreover, if one prefers to use two keys C, it remains possible to use one of these keys and thus provide only one of the holes 14. In addition, the device of the invention may comprise more than two rods 5 or a single rod. Dans le cas ou une seule tige est prévue il est préférable que cette tige et le trou dans lequel elle est reçue, aient une section autre que circulaire afin d'empêcher tout déplacement relatif d'un mors par rapport à l'autre par rotation autour de cette tige unique. In case a single rod is provided it is preferable that the rod and the hole in which it is received, have a section other than circular in order to prevent any relative movement of one jaw relative to the other by rotation about this single rod.

Chacun des mors 1 et 2 comporte sur sa face opposée à la surface d'appui 3 correspondante, une nervure longitudinale 15 présentant en section transversale. Each of the jaws 1 and 2 comprises on its face opposite to the corresponding support surface 3, a longitudinal rib 15 having in cross section. une forme en queue d'aronde. shaped dovetail. Comme représenté la Fig.4, ces rainures 18 permettent d'accoupler chaque mors sur la partie active, opposée à la partie de préhension, d'une branche 16 respective d'une pince chirurgicale coudée 17 à deux branches 16 articulées entre elles. As shown in Fig.4, the grooves 18 allow for coupling each jaw on the active part, opposite to the grip portion of a respective leg 16 of an angled surgical clip 17 with two arms 16 hinged together.

Les faces intérieures en regard l'une de l'autre des parties actives des branches 16 de la pince 17, présentent chacune à cet effet une rainure 18 longitudinale à section transversale de forme complémentaire à celle des nervures. The inner faces facing each other of the active portions of the branches 16 of the clamp 17, each having for that purpose a longitudinal groove 18 in cross-sectional shape complementary to that of the ribs. ces nervures 15 débouchant chacune a l'extrémité de la branche respective. these ribs 15 each opening at the extremity of the respective branch. voisine de sa partie active de façon à permettre l'engagement et le dégagement des mors 1 et 2 par coulissement relatif entre les rainures 18 et les nervures 15. Les nervures 15 sont retenues dans les rainures 18 å l'encontre d un dégagement par traction transversale tendant à arracher les nervures de leur rainure réceptrice. close to its active part so as to allow the engagement and disengagement of the jaws 1 and 2 by relative sliding between the grooves 18 and the ribs 15. The ribs 15 are retained in the grooves 18 against disengagement of a tension by cross tending to pull the ribs of their receiving groove. par venue en butée des parois latérales des nervures contre celles de rainures. by abutment of the side walls of the ribs against those grooves.

Le choix du profil en queue d aronde des rainures 18 et des nervures 15 n'est bien entendu pas limitatif et peut prendre toute forme appropriée dés l'instant que les profils des nervures formant partie mâle et ceux des rainures formant partie femelle, soient de formes à peu prés complémentaires. The choice of profile swallowtail grooves 18 and ribs 15 is of course not limiting and may take any appropriate form as soon as the profiles of the male portion ribs and those grooves forming female portion are of Additional forms pretty meadows. Ce profil peut par exemple prendre la forme d'une portion de cercle s'étendant sur une section angulaire de plus de 180g. This profile may for example take the form of a portion of a circle extending over an angular section of more than 180g. Il est également envisageable de prévoir les parties m les aux extrémités des branches 16 et les parties femelles sur les faces correspondantes des mors 1 et 2. It is also conceivable to provide the parties to m the ends of the legs 16 and the female portions on the corresponding faces of the jaws 1 and 2.

En variante, les rainures peuvent être subs tituées par des fentes ménagées longitudinalement au niveau des parties actives des branches 16 de la pince 17, ces fentes débouchant chacune par une leurs extrémités a l'extrémité de la branche respective de la pince, voisine de la partie active de cette pince pour permettre le dégagement et l'engagement des nervures par translation. Alternatively, the grooves may be subs tituées by longitudinally arranged slots in the active portions of the legs 16 of the clip 17, these slots each opening by their ends to the end of the respective branch of the clamp adjacent to the active portion of this clamp to permit disengagement and engagement of the ribs with translation.

Dans ce cas, les nervures ménagées sur les mors peuvent avoir dans l'ensemble, une section transversale de forme appropriée à peu prés complémentaire de celle des fentes. In this case, the ribs on the jaws may have overall a cross-sectional form suitable for little additional near the slits. les parois latérales des nervures viennent alors en butée contre les parois latérales des fentes à l'encontre du dégagement de chaque nervure d'un mors par traction transversale de ce mors en direction de l'autre mors. the side walls of the ribs then abut against the side walls of the slots against the clearance of each rib of a jaw by this transverse tensile jaw towards the other jaw. ceci de maniére analogue a la retenue des nervures décrites ci-dessus. this analogously to the retaining ribs described above.

Les nervures peuvent également avoir une section transversale de forme a peu prés complémentaire de seulement une partie de celle des fentes de manière à venir en butée sur les faces extérieures des branches de la pince, opposées aux faces intérieures en regard l'une de l'autre et éventuellement simulta nément sur les parois latérales des fentes si ces dernières ont un profil approprié en section transversable. The ribs may also have a cross-sectional shape has little additional near only a portion of the slits so as to abut on the outer faces of the branches of the clamp, opposite to the inner faces facing each of the and optionally other simulta neously on the side walls of the slots if the latter have a suitable profile transversable section. de sorte que les nervures sont retenues dans les fentes å l'encontre d une traction sur le mors dans une direction transversale a la direction de leur engagement par coulissement dans les fentes, so that the ribs are held in the slots against of traction on the jaws in a direction transverse to the direction of their sliding engagement in the slots,
On a également représenté sur la Fig.2, un troisième moyen de verrouillage des mors en position serrée sur le conduit 4. Ce dernier moyen de verrouillage comprend une plaque rectangulaire 19 au voisinage de chaque coin d'une même face de laquelle. It was also shown in Fig.2, a third of the jaws in the clamped position locking means on the conduit 4. The latter locking means comprises a rectangular plate 19 in the vicinity of each corner of one side of which.

s'étend en saillie une branche 20. Ces branches 20 présentent chacune en section une forme â peu pres trapézoidale et les branches 20 d'une paire de branches, situées sur une même largeur de la plaque 19. extends a projecting arm 20. These arms 20 each have a cross section form approximately trapezoidal legs 20 and a pair of branches, located on the same width of the plate 19.

délimitent entre elles une fente 21 ayant en section transversale une forme correspondante a celle des nervures 15 des mors 1 et 2 de sorte qu'avec une plaque 19 de longueur appropriée, les nervures 15 des mors peuvent être reçues entre les branches 20 de chacune des paires de branches afin de maintenir serrée le dispositif d'interruption de circulation de l'invention sur un conduit. define between them a cross section 21 having a slot shape corresponding to that of ribs 15 of jaws 1 and 2 so that with a plate 19 of suitable length, the ribs of the jaws 15 can be received between the legs 20 of each of pairs of branches to keep tight the flow interruption device of the invention on a conduit.

La mise en place du dispositif de l'inven- tion sur un conduit est effectuée tout d'abord en accouplant par coulissement les mors 1 et 2 sur les extrémités des branches 16 de la pince 17. Le conduit est alors serré entre les mors 1 et 2 en agissant manuellement sur la pince 17, ce qui amène les tiges 5 à perforer le conduit pour le traverser et pénétrer dans le mors 1. A ce stade, il convient d'appliquer sur la pince la pression suffisante pour régler l'écartement entre les mors 1 et 2. Quand cette position de réglage est obtenue. The implementation of the invention tion device on a conduit is first performed by coupling by sliding the jaws 1 and 2 on the ends of the branches 16 of the clamp 17. The conduit is then clamped between the jaws 1 and 2 by manually acting on the gripper 17, which causes the rods 5 to perforate the conduit to cross and enter the jaw 1. at this point, should be applied to the clamp pressure sufficient to adjust the spacing between the jaws 1 and 2. When the setting position is obtained. on dégage par cou lissement les mors des branches de la pince, les deux mors restent alors en position serrée sur le conduit en conservant l'écartement requis sous l'action d'une saillie 7 de chaque tige 5 en butée contre l'epaulement 13 respectif.Le verrouillage peut alors être complété. neck is disengaged by smoothening the jaws of the branches of the clamp, the two jaws are then clamped in position on the pipe maintaining the required distance under the action of a protrusion 7 of each shaft 5 into abutment against the shoulder 13 respectif.Le lock can then be completed. d'une part, par l'introduction d'une ou de deux clavettes C dans les alésages 14, et d'autre part. one hand, by the introduction of one or two keys C in the bores 14, and secondly. par la mise en place des moyens de verrouillage du type à plaque 19 et branches 20 par coulissement des branches 20 de chaque paire de branches de part et d'autre d'une nervure 15 respective, la longueur de la plaque 19 étant choisie de manière appropriée en fonction de l'écartement existant entre les mors 1 et 2 en position serrée sur le conduit. by the introduction of the locking means of the plate type branches 19 and 20 by sliding the legs 20 of each pair of branches from either side of a respective rib 15, the length of the plate 19 is selected so appropriate depending on the spacing between the jaws 1 and 2 in the clamped position on the conduit.

Les différentes parties du dispositif de l'invention sont réalisées dans des matériaux compatibles en vue d'une implantation dans un organisme. The different parts of the inventive device are made of compatible material for implantation in an organism.

Les mors 1 et 2 et les tiges 5 doivent être à peu pres rigides, les surfaces d'appui 3 devant entre toutefois suffisamment souples et élastiques pour s'adapter aux surfaces irrégulières des parois à écraser des conduits d'un organisme. The jaws 1 and 2 and the string 5 must be approximately rigid, the support surfaces 3 between front however sufficiently flexible and resilient to conform to irregular surfaces of the walls in crush conduits of an organism. Ces surfaces d'appui 3 peuvent être réalisées dans le même matériau ou dans un ma tériau différent que celui de la partie restante des mors. These supporting surfaces 3 can be made of the same material or a different my terial than the remaining part of the jaws. Ces surfaces d'appui 3 peuvent etre ainsi venues de matière avec la partie restante des mors ou bien être rapportées à celle-ci par exemple par collage. These supporting surfaces 3 can be so formed integrally with the remaining portion of the jaws or be related thereto for example by gluing.

Claims (15)

REVENDICATIONS
1. Dispositif d interruption de la circulation d'un fluide dans un conduit (2) à paroi souple. 1. Device for interrupting the flow of a fluid in a conduit (2) having a flexible wall.
notamment un viscère creux tel qu'un vaisseau sanguin. including a hollow organ such as a blood vessel.
un arbre aérien pulmonaire ou un tube digestif. pulmonary air shaft or digestive tract. comportant deux mors (1.2) délimitant chacun une surface d appui (3 > sur le conduit. destinés à pincer transversalement entre leurs surfaces d'appui ce conduit pour l'écraser. et des moyens de blocage des deux mors l'un par rapport â l'autre en position de serrage. comprising two jaws (1.2) each defining a support surface of (3> on the conduit. for pinching transversely between their bearing surfaces that leads to crush. and locking means of the two jaws relative â the other in the clamping position.
caractérisé en ce que les moyens de blocage comprennuent au moins une tige (5) en saillie sur la surface d'appui du mors (2) dont elle est solidaire et adaptée pour coopérer par son extrémité correspondante avec des moyens de verrouillage portés par l'autre mors (1). characterized in that the locking means comprennuent at least one rod (5) projecting from the bearing surface of the jaws (2) which it is integral and adapted to cooperate by its corresponding end with locking means carried by the other jaw (1).
2. Dispositif suivant la revendication 1, caractérise en ce que l'extrémité de chaque tige destinée å être verrouillée dans le mors correspon dant, est acérée pour perforer et traverser le conduit écrasé. 2. Device according to Claim 1, characterized in that the end of each rod to be locked in the corre ing jaws, is sharp to pierce and pass through the crushed pipe.
3. Dispositif suivant la revendication 1 ou 2. caractérisé en ce que les moyens de verrouillage sont réglables afin d'ajuster l'écartement entre les mors. 3. Device according to Claim 1 or 2. characterized in that the locking means are adjustable to adjust the spacing between the jaws.
Dispositif suivant l'une quelconque des revendications précédentes. Apparatus according to any preceding claim. caractérisé en ce les moyens de verrouillage de chaque tige comprennent une ou plusieurs saillies (7) espacées axialement au voisinage de l'extrémité correspondante de la tige. characterized in that the locking means of each rod comprises one or more projections (7) axially spaced adjacent the corresponding end of the rod.
un trou (10) respectif ménagé dans la surface d'appui du mors correspondant pour recevoir ladite extrémité de la tige et des moyens (13. 15) pour retenir cette tige dans le trou. a hole (10) provided in the respective bearing surface of the corresponding jaw for receiving said end of the shank and means (13. 15) for retaining the rod in the hole.
5. Dispositif suivant la revendication 4. 5. Device according to claim 4.
caractérisé en ce que chaque trou (10) comporte une première partie (11) voisine de la surface d'appui du mors correspondant, de section à peu prés correspondante à celle de la tige, cette première partie étant adaptée pour être traversée à force par la ou chaque saillie (7) par déformation élastique de cette partie de trou, et/ou des saillies et, une deuxième partie (12) de section élargie. characterized in that each hole (10) has a first portion (11) adjacent to the bearing surface of the corresponding jaw, section substantially corresponding approximately to that of the rod, said first portion being adapted to be traversed in force by the or each projection (7) by elastic deformation of this hole portion and / or projections and a second portion (12) of enlarged section. prolongeant la première partie en direction opposée de la surface d'appui en délimitant entre ces parties de trou, un épaulement (13) contre lequel une saillie est destinee å venir en butée pour verrouiller et retenir la tige en place dans le mors (2) correspondant. extending the first opposite direction of the bearing surface defining between these parts of the hole, a shoulder (13) against which a projection is intended to come into abutment to lock and retain the rod in place in the jaw (2) corresponding.
6. Dispositif suivant la revendication 4 ou 5. caractérisé en ce que les moyens de retenue de chaque tige dans le trou respectif, comprennent au moins un alésage (14) coupant transversalement ce trou, chaque alésage étant adapté pour recevoir une clavette (C) de retenue de la tige dans le trou correspondant par venue en butée d'une saillie sur la clavette. 6. Device according to claim 4 or 5. characterized in that the retaining means of each rod in the respective hole, comprise at least one bore (14) transversely intersecting the hole, each bore being adapted to receive a key (C) retaining the rod into the corresponding hole by abutment of a projection on the wedge.
7. Dispositif suivant l'une quelconque des revendications 4 à 6, caractérisé en ce que chaque saillie présentent la forme d'une barbelure de flèche comportant une face (8) inclinée, orientée en direction de l'extrémité libre de la tige correspondante et une face (9) à peu prés radiale, orientée en direction de l'autre extrémité de cette tige et destinée à coo pérer avec les moyens de retenue. 7. Device according to any one of claims 4 to 6, characterized in that each projection have the shape of an arrow barb having a face (8) inclined, oriented towards the free end of the corresponding rod and a face (9) substantially radial fields, directed towards the other end of this rod and designed to coo-operate with the retaining means.
8. Ensemble de pince chirurgicale, comportant une pince (17) à deux branches (16) articulées entre elles, cette pince comportant à une extrémité une partie de préhension et à l'autre extrémité une partie active, caractérisé en ce que cette pince est associée à un dispositif d'interruption tel que re vendiqué suivant l'une quelconque des revendications précédentes, chacun des mors (1. 2) de ce dispositif formant un mors de la pince en étant disposé au niveau de la partie active d'une branche respective de cette pince. 8. surgical clamp assembly comprising a clamp (17) with two arms (16) hinged together, said clamp having at one end a grip part and at the other end an active portion, characterized in that this clamp is associated with an interruption device such as re vendiqué according to any one of the preceding claims, each of the jaws (1. 2) of said device forming a jaw of the clamp being disposed at the active portion of a branch respective of this clamp.
9. Ensemble de pince suivant la revendication 8, caractérisé en ce qu'il est prévu des moyens d'accouplement 115. 18) dégageables et engageables par coulissement relatif entre chaque branche et le mors correspondant. 9. clamp assembly according to claim 8, characterized in that there is provided coupling means 115. 18) engageable and disengageable by relative sliding between each leg and the corresponding jaw.
10. Ensemble de pince suivant la revendication 9, caractérisé en ce que les moyens d'accouplement comprennent des formes à peu prés complémentaires les unes des autres prévues sur les branches et sur les mors. 10. clamp assembly according to claim 9, characterized in that the coupling means include shapes substantially complementary near each other provided on the arms and the jaws.
11. Ensemble de pince suivant la revendication 9 ou 10, caractérisé en ce que les moyens d'accouplement de chaque mors comprennent une nervure (15) formée sur le mors ou sur la branche respective de la pince et une rainure 118) à section transversale de forme å peu prés complémentaire à celle de la nervure, formée respectivement sur la branche ou sur le mors. 11. clamp assembly according to claim 9 or 10, characterized in that the coupling means of each jaw comprise a rib (15) formed on the jaw or on the respective leg of the clip and a groove 118) in cross-section å little additional near shape to the rib, formed respectively on the leg or on the jaw.
cette rainure ayant une extrémité ouverte pour l en- gagement et le dégagement par translation de la nervure associée. said groove having an open end for commit- ment and disengagement by translation of the associated rib.
12. Ensemble de pince suivant la revendication 11. caractérisé en ce que les nervures sont formées sur les mors (1.2). 12. clamp assembly according to claim 11. characterized in that the ribs are formed on the jaw (1.2).
13. Ensemble de pince suivant la revendication 9 ou 10. caractérisé en ce que les moyens d'accouplement de chaque mors comprennent une nervure (15) formée sur le mors et une fente formée sur la branche respective. 13. clamp assembly according to claim 9 or 10. characterized in that the coupling means of each jaw comprise a rib (15) formed on the jaws and a slot formed on the respective leg. cette fente ayant une extrémité ouverte pour l'engagement et le dégagement par translation d'au moins une partie de la nervure associée. said slot having an open end for engagement and disengagement by translating at least a portion of the associated rib.
Ensemble de pince suivant la revendication 12 ou 13. caractérisé en ce que les nervures (15) sont formées chacune sur une face du mors respectif opposée à sa surface d'appui (3). Gripper assembly according to Claim 12 or 13. characterized in that the ribs (15) are each formed on one side of the respective jaw opposite to its bearing surface (3).
15. Ensemble suivant l'une quelconque des revendications 11 å 14. caractérisé en ce que les parois latérales des nervures viennent en butée contre les parois latérales des rainures ou des fentes, en s'opposant au dégagement des nervures par traction dans une direction transversale à la direction de translation de celles-ci dans les rainures ou les fentes. 15. An assembly according to any one of claims 11 to 14. characterized in that the side walls of the ribs abut against the side walls of the grooves or slots, opposing the disengagement of the ribs by pulling in a direction transverse to the direction of translation thereof into the grooves or slots.
16. Ensemble suivant la revendication 14 ou 15 dépendant de la revendication 12, ou la revendication 13, caractérisé en ce que les nervures viennent en butée contres les faces extérieures des branches opposées aux faces intérieures en regard l'une de l'autre de ces branches, en s'opposant au dégagement des nervures par traction dans une direction transversale à la direction de translation de celles-ci dans les rainures ou les fentes. 16. Assembly according to claim 14 or 15 when dependent on claim 12, or claim 13, characterized in that the ribs abut counters the outer sides of opposing legs to the inner faces facing each other of these branches, opposing to the disengagement of the ribs by pulling in a direction transverse to the direction of translation thereof into the grooves or slots.
17. Ensemble de pince suivant l'une quelconque des revendications 11 à 16, caractérisé en ce que les rainures ou les fentes s'étendent suivant la longueur des branches et débouchent chacune a l'ex- trémité de la branche respective. 17. Next clamp assembly of any one of claims 11 to 16, characterized in that the grooves or slots extend along the length of the legs and each open to the former Tremite the respective branch. voisine de la partie active de cette branche. close to the active part of this branch.
FR8607284A 1986-05-22 1986-05-22 An interruption of the circulation of a fluid in a conduit has a flexible wall, in particular a hollow viscus and clamp assembly comprising the device Expired - Lifetime FR2598905B1 (en)

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US10098642B2 (en) 2015-08-26 2018-10-16 Ethicon Llc Surgical staples comprising features for improved fastening of tissue
US10028744B2 (en) 2015-08-26 2018-07-24 Ethicon Llc Staple cartridge assembly including staple guides
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US10085751B2 (en) 2015-09-23 2018-10-02 Ethicon Llc Surgical stapler having temperature-based motor control
US10105139B2 (en) 2015-09-23 2018-10-23 Ethicon Llc Surgical stapler having downstream current-based motor control
US10265067B2 (en) 2015-09-23 2019-04-23 Ethicon Llc Surgical instrument including a regulator and a control system
US10238386B2 (en) 2015-09-23 2019-03-26 Ethicon Llc Surgical stapler having motor control based on an electrical parameter related to a motor current
US10172620B2 (en) 2015-09-30 2019-01-08 Ethicon Llc Compressible adjuncts with bonding nodes
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US10265068B2 (en) 2015-12-30 2019-04-23 Ethicon Llc Surgical instruments with separable motors and motor control circuits
US10245029B2 (en) 2016-02-09 2019-04-02 Ethicon Llc Surgical instrument with articulating and axially translatable end effector
US10245030B2 (en) 2016-02-09 2019-04-02 Ethicon Llc Surgical instruments with tensioning arrangements for cable driven articulation systems
US10258331B2 (en) 2016-02-12 2019-04-16 Ethicon Llc Mechanisms for compensating for drivetrain failure in powered surgical instruments
US10265074B2 (en) 2016-03-23 2019-04-23 Ethicon Llc Implantable layers for surgical stapling devices
US10271851B2 (en) 2016-04-01 2019-04-30 Ethicon Llc Modular surgical stapling system comprising a display
US10271846B2 (en) 2016-04-28 2019-04-30 Ethicon Llc Staple cartridge for use with a surgical stapler
US10211586B2 (en) 2017-06-28 2019-02-19 Ethicon Llc Surgical shaft assemblies with watertight housings
US10258418B2 (en) 2017-06-29 2019-04-16 Ethicon Llc System for controlling articulation forces

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