FR2689749A1 - Surgical stapling instrument for circular anastomy - has cartridge-loaded cylindrical-conical stapling head attached to main tubular body via flexible actuating cable - Google Patents

Surgical stapling instrument for circular anastomy - has cartridge-loaded cylindrical-conical stapling head attached to main tubular body via flexible actuating cable Download PDF

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FR2689749A1
FR2689749A1 FR9204490A FR9204490A FR2689749A1 FR 2689749 A1 FR2689749 A1 FR 2689749A1 FR 9204490 A FR9204490 A FR 9204490A FR 9204490 A FR9204490 A FR 9204490A FR 2689749 A1 FR2689749 A1 FR 2689749A1
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instrument
cartridge
anvil
handle
flexible cable
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FR2689749B1 (en
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Toledano Haviv
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/11Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
    • A61B17/115Staplers for performing anastomosis in a single operation
    • A61B17/1155Circular staplers comprising a plurality of staples
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/22Implements 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
    • A61B2017/22051Implements 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 with an inflatable part, e.g. balloon, for positioning, blocking, or immobilisation

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

The instrument has a cartridge-type head (1) articulated to the end of a thin flexible cable (21). A hollow tubular body (2) is formed by a flexible metal spiral strip (26) which is articulated at its ends to a removable anvil (18) and a sleeve (3) which carries a rotary handle connected to the cable. The cartridge comprises a hollow cylinder (11) with a conical or hemispherical end portion (25). Cellular openings formed in an annular base (12) of the cartridge each receive a staple, which may be engaged by a hammer assembly housed within the cylindrical portion of the cartridge and actuated via the cable. ADVANTAGE - Reduced mfg. cost, with rapid loading of full complement of staples in single operation.

Description

La présente invention concerne un instrument chirurgical permettant la réalisation d'anastomoses circulaires invaginantes par points totaux å l'aide d'agrafes chirurgicales. The present invention relates to a surgical instrument for the realization of invaginating circular anastomoses by total points with the aid of surgical staples.

Cet instrument se prête aussi bien à la confection d'anastomoses de type 'stermino-termi- nale", "termino-latérale", "latéro-terminale" et "latéro-latérale" at, plus particulièrement, dans les zones d'accès opératoire difficiles. This instrument is equally suitable for the manufacture of "terminal-terminal", "lateral-lateral", "latero-terminal" and "latero-lateral" anastomoses and, more particularly, in the access zones. difficult operation.

L'utilisation de l'agrafe chirurgicale métallique destinée a' remplacer les fils de suture en chirurgie (digestive en particulier} remonte au debut de ce siècle. En t 908, le Hongrois Hultl utilisa pour la transsection de l estomac le premier appareil à suture linéaire semi-automatique permettant de disposer de part et d'autre d'une ligne de section une rangee d'agrafes métalliques réparties en quinconce. The use of the metal surgical staple for replacing sutures in surgery (digestive in particular) dates back to the beginning of this century.At 908, the Hungarian Hultl used for the transsection of the stomach the first suture Linear semi-automatic to arrange on both sides of a section line a row of metal staples distributed in staggered rows.

Les premiers types d'appareillage d'agrafage métallique permettant la confection d'anas tomoses circulaires remontent å la fi n des années 1950 et sont attribues å 171 l'institut Scientifique d'Appareillage et d'instruments Chirurgicaux et Expérimentaux de Moscou. (instruments PKS 25, KZ 28, SPTU 21, 26, 29 et 32). The first types of metal stapling apparatus for the manufacture of circular anas tomoses date back to the late 1950s and are attributed to the Scientific Institute of Surgical and Experimental Instruments and Equipment in Moscow. (instruments PKS 25, KZ 28, SPTU 21, 26, 29 and 32).

L'utilisation de tels instruments de sutures mécaniques en chirurgie est devenue de plus en plus courante depuis une dizaine d'années et fait maintenant partie des procédés classiques utilisés dans divers domaines de la chirurgie et, en particulier, celui de la chirurgie digestive.  The use of such mechanical suture instruments in surgery has become increasingly common over the past ten years and is now part of the conventional methods used in various fields of surgery and, in particular, that of digestive surgery.

Les arguments avancés en faveur de leur emploi sont à la fois chirurgicaux et commerciaux:
1 - sécurité de la suture par rapport aux points de suture classiques.
The arguments in favor of their use are both surgical and commercial:
1 - safety of the suture compared to conventional stitches.

2 - simplicité : l'emploi de ces instruments a permis de simplifier considérablement de nombreux processus difficiles à realiser. 2 - simplicity: the use of these instruments has made it possible to considerably simplify many difficult processes to achieve.

3 - rapidité d'exécution et, de ce fait, réduction du temps nécessaire pour de telles opérations et de façon concomitante, reveil plus précoce du malade de son anesthésie svec utilisation d'une quantité moindre de drogues anesthésiques.
il résulte de ces trois arguments un quatrieme qui lui est d'ordre économique par le biais de la moindre durée d'hospitalisation.
3 - speed of execution and, as a result, reduction of the time necessary for such operations and concomitantly, wakes the patient earlier from his anesthesia with the use of a lesser quantity of anesthetic drugs.
the result of these three arguments is a fourth which is economic in nature through the shorter duration of hospitalization.

En fait, certains éléments sont pris en défaut et sont en grande partie liés a' des problemes d'ordre mécanique que la présente invention veut résoudre. In fact, some elements are faulty and are largely related to mechanical problems that the present invention seeks to solve.

Les brevets US 3. 193.165 et US 3.338.874 décrivent des instruments dits de "première génération . Ces instruments utilisables d'un malade à l'autre après stérilisation présentent de nombreux inconvénients:
a - ils sont rigides, encombrants et entièrement métalliques, ce qui les rend lourds et inadaptés pour le travail avec les tissus mous que sont les viscéres et paruculierement le tube digestif.
b - Ils ont une structure complexe rendant d'une part leur fabrication conteuse et néces- sitant d'autre part qu'ils soient constamment entretenus, démontés, stérilisés pour chaque ope- ration et nettoyés après chaque utilisation.
c - Le chargement de l'instrument se fait manuellement agrafe par agrafe dans l'instrument avant chaque opération.
d - Le couteau de l'instrument doit être affûte périodiquement et des outils speciaux sont fréquemment nécessaires pour le montage, démontage, entretien et remplacement des pièces.
e - La répartition des agrafes s'effectue sur une ligne unique en trait discontinu rendant la sécurité de la suture aléatoire avec beaucoup de risques de fuite (fistule) et d'hémorragie des tranches de section. Ce risque de fuite est d autant plus important que la distance entre la tige centrale des instruments et le couteau circulaire est courte (ceci sera expliqué ultérieurement).
f - Ces instruments sont droits et rigides, et ne peuvent pas épouser les courbures du tube digestif.
g - Les différences d'épaisseur qui existent (meme chez un meme patient) entre deux structures tubulaires du tube digestif (c'est-à-dire oesophage, petit intestin, gros intestin...) a
"anastomoser", rendent nécessaire l'utilisation d'agrafes de longueurs différentes.
h - De meme, il existe des différences de calibre entre les différents segments du tube digestif qui posent un problème. En effet, l'instrument d'agrafage doit etre introduit dans les lumières (calibre interne) des deux structures tubulaires du tube digestif à "anastomoser" et les diamètres de la partie de l'instrument qui contient les agrafes, et de l'élément centre lequel s'écrasent ces agrafes doivent correspondre au diamètre intérieur de la lumière des organes.
US Pat. Nos. 3,193,165 and 3,338,874 describe so-called "first generation" instruments which can be used from one patient to another after sterilization have numerous disadvantages:
a - they are rigid, bulky and entirely metallic, which makes them heavy and unsuitable for working with the soft tissues that are the viscera and paruculiarly the digestive tract.
b - They have a complex structure, making their storytelling on the one hand and requiring them to be constantly maintained, disassembled, sterilized for each operation and cleaned after each use.
c - The loading of the instrument is manually stapled in the instrument before each operation.
d - The instrument knife should be sharpened periodically and special tools are frequently required for assembly, disassembly, maintenance and replacement of parts.
e - The distribution of the staples is performed on a single line in broken lines making the security of the suture random with a lot of risk of leakage (fistula) and haemorrhage slices section. This risk of leakage is all the more important as the distance between the central rod of the instruments and the circular knife is short (this will be explained later).
These instruments are straight and rigid, and can not conform to the curvatures of the digestive tract.
g - The differences in thickness that exist (even in the same patient) between two tubular structures of the digestive tract (that is to say, esophagus, small intestine, large intestine ...) has
"anastomose", make it necessary to use staples of different lengths.
h - Similarly, there are caliber differences between the different segments of the digestive tract that pose a problem. Indeed, the stapling instrument must be introduced into the lumens (inner gauge) of the two tubular structures of the digestive tract to "anastomose" and the diameters of the part of the instrument that contains the staples, and the element center which crash these staples must match the inner diameter of the light of the organs.

Des solutions en partie imparfaites ont été apportées à quelques-uns de ces 4roblèrnes tout en provoquant de nouveaux inconvénients. Ainsi, le brevet US 3.552.626 propose des tetes interchangeables de support d'agrafe ayant des diamètres différents, mais, malheureusement, ces têtes interchangeables sont difficiles à installer et à démonter. De plus, la dimension minimale desdites tettes est limitée du fait du volume des raccords qui sont nécessaires pour assurer leur jonction avec l'instrument. Partially imperfect solutions have been made to some of these variables while causing new disadvantages. Thus, US Patent 3,552,626 proposes interchangeable staple holder heads having different diameters, but unfortunately these interchangeable heads are difficult to install and disassemble. In addition, the minimum dimension of said teats is limited because of the volume of fittings that are necessary to ensure their connection with the instrument.

En fait, il est actuellement bien établi par des études expérimentales qu'avec des instruments équipés de tetes (porteuses d agrafes) de diamètre extérieur de 21 mm, 25mm, 28mm et 31 mm, il il est possible de couvrir la plupart des diamètres internes des organes du tube digestif d'étires humains. En effet, les tissus organiques étant élastiques, ils se pretent bien à de petites dilatations S l'aide de "bougies" métalliques de calibre progressivement croissant jusqu'à adaptation du diamètre interne du tube digestif à anastomoser au diamètre externe le plus proche sur la gamma des quatre diamètres d'instruments précites. il va sans dire que cette dilatation aux bougies metalliques est relativement traumatisante pour le tube digestif. In fact, it is now well established by experimental studies that with instruments equipped with 21 mm, 25mm, 28mm and 31mm diameter heads (staple carriers), it is possible to cover most internal diameters. organs of the digestive tract of human stretches. Indeed, the organic tissues being elastic, they lend themselves well to small expansions S using metal "candles" gradually increasing caliber until adaptation of the internal diameter of the digestive tract to anastomose to the nearest outer diameter on the gamma of the four diameters of the aforementioned instruments. it goes without saying that this dilation with metal candles is relatively traumatic for the digestive tract.

De meme, il est bien établi qu'avec des agrafes ayant des branches d'environ 5mm, on arrive à couvrir différentes épaisseurs du tube digestif tout en restant dans un domaine de sécurité d'anastomose. La sécurité est optimale quand l'anastomose circulaire comprend deux rangées d'agrafes réparties en quinconce, comme l'avait suggéré en 1908 le Hongrois Hulti pour l'anasto- mose linéaire. Similarly, it is well established that with staples having branches of about 5mm, we can cover different thicknesses of the digestive tract while remaining in an area of safety anastomosis. Safety is optimal when the circular anastomosis consists of two rows of staggered staples, as suggested by the Hungarian Hulti in 1908 for linear anastomosis.

Les brevets FR 45 33345 et FR 81 00575 font état de memes types d'instruments qui peuvent etre réalisés soit de façon à oestre intégralement jetés après usage, soit de façon à étre réu tilisables apres restérilisation. Dans le premier cas "matériel à usage unique", ils sont habituellement confectionnés en plastique et, de ce fait, plus légers. Dans le second cas, ils sont mé- talliques et conservent les inconvénients cites plus haut (pour le brevet US 3.552.626).  The patents FR 45 33345 and FR 81 00575 disclose the same types of instruments that can be made either so as to be completely discarded after use, or so as to be reusable after resterilization. In the first case "single-use material", they are usually made of plastic and, therefore, lighter. In the second case, they are metallic and retain the drawbacks mentioned above (for US Pat. No. 3,552,626).

On voit donc que malgré l'adaptation rationnelle continue de ces instruments, plusieurs imperfections restent à déplorer. La plus importante et la plus handicapante pour le chirurgien est celle de la rigidité des instruments actuellement sur le marché. En effet, ces instruments sont tous formes d'un manche prolongé d'un segment de cylindre rigide (droit dans le brevet FR 81 00575 et à angle fixe dans les brevets US 3.315.863; US 3.494.533) d'une longueur fixe portant à son bout un boîtier chargeur d'agrafes et un couteau circulaire traversé par une tige métallique centrale rigides porteuse d'une enclume contre laquelle viennent s'écraser les agrafes et le couteau lors du fonctionnement de l'instrument. It can thus be seen that, in spite of the continuous rational adaptation of these instruments, several imperfections remain to be deplored. The most important and the most debilitating for the surgeon is that of the rigidity of the instruments currently on the market. Indeed, these instruments are all forms of an extended handle of a rigid cylinder segment (right in the patent FR 81 00575 and fixed angle in US Patents 3,315,863; US 3,494,533) of a fixed length carrying at its end a staple magazine and a circular knife traversed by a rigid central metal rod carrying an anvil against which come crashing the staples and the knife during operation of the instrument.

Cette rigidité rend certains procédés chirurgicaux impossibles à réaliser et beaucoup d'autres procédés chirurgicaux très malaisés, car rigides, l'instrument ne pouvant s'adapter aux différentes tortuosités du tube digestif. This rigidity makes some surgical procedures impossible and many other surgical procedures very difficult, because rigid, the instrument can not adapt to different tortuosity of the digestive tract.

1 - La présente invention a pour but de fournir un instrument chirurgical danastomose circulaire d'une conception nouvelle et tres simple permettant de répondre aux différents incon- vénients enumeres ci-dessus. 11 est, en particulier, flexible afin de permettre la réalisation des procédés chirurgicaux d'anastomose circulaire meme dans les endroits d'accès opératoire impossible ou très difficile avec les instruments antérieurs. The object of the present invention is to provide a circular danastomosis surgical instrument of a new and very simple design making it possible to respond to the various disadvantages listed above. It is, in particular, flexible in order to allow the realization of surgical methods of circular anastomosis even in places of operation impossible or very difficult access with the previous instruments.

2 - L'instrument selon l'invention permettra la confection d'anastomoses circulaires de type "termino-terminal", "termino-latéral", "latéro-terminal" et "latéro-latéral". 2 - The instrument according to the invention will allow the manufacture of circular anastomoses of the "termino-terminal", "termino-lateral", "latero-terminal" and "latero-lateral" type.

3 - L'instrument selon l'invention est de manipulation aisée et peut etre agence pour la fabrication sous forme d'instrument à usage unique (jetable après un seul usage), d'instrument à usages multiples (non restérilisable au cours de la meme séance opératoire chez un meme patient) et enfin d'instrument de t4pe permanent et réutilisable d'un patient à l'autre après restérilisation.  3 - The instrument according to the invention is easy to handle and can be used for manufacturing as a single-use instrument (disposable after one use), multipurpose instrument (not resterilizable during the same time). operative session in the same patient) and finally permanent and reusable instrument from one patient to another after resterilization.

Les deux premières formes nous semblent préférables, car confectionnées en matière plastique elles procurent à l'instrument un faible poids et une plus grande sécurité d'asepsie. The first two forms seem preferable to us, because made of plastic material they give the instrument a low weight and a greater safety of asepsis.

50us toutes ces formes, il est possible d'échangeur une cartouche contenant agrafes et couteau circulaire. Ces cartouches bien que décrites dans l'invention avec quatre diamètres extérieurs de 21, 25, 28, 31mm pourront être fabriquées avec n'importe quel diamètre. Elles peuvent contenir une ou plusieurs rangees circulaires d'agrafes bien que deux rangées annulaires disposees concentriquement et en quinconce soient préférables. Ces deux rangées annulaires et le couteau circulaire entouré par elles suint disposées de sorte à occuper un minimum de largeur, ce qui permet une lumière résiduelle après anastomose plus grande et une plus grande facilité de retrait de l'instrument. Dans les deux dernières formes, il est également possible de changer l'enclume pour l'adapter au diamètre différent de la cartouche. In all these forms, it is possible to exchanger a cartridge containing staples and circular knife. These cartridges, although described in the invention with four outside diameters of 21, 25, 28, 31 mm, can be manufactured with any diameter. They may contain one or more circular rows of staples although two annular rows arranged concentrically and staggered are preferable. These two annular rows and the circular knife surrounded by them ooze arranged so as to occupy a minimum of width, which allows residual light after larger anastomosis and greater ease of removal of the instrument. In the last two forms, it is also possible to change the anvil to fit the different diameter of the cartridge.

4 - De part sa flexibilité et la possibilité de differentes longueurs des éléments flexibles, l'instrument de cette invention pourra entre introduit par les orifices digestifs naturels (anus, bouche) et éviter certaines incisionslongitudinales sur le tube digestif, (incisions qui servaient à l'introduction de l'instrument dans ce meme tube digestif afin de confectionner l'anastomose circulai re et qui devaient être refermées à la fi n de lJopérstion). Le cout et la durée de l'intervention s'en trouvent ainsi diminuées.  4 - Because of its flexibility and the possibility of different lengths of flexible elements, the instrument of this invention can between introduced by the natural digestive orifices (anus, mouth) and avoid certain longitudinal incisions on the digestive tract, (incisions which were used for introduction of the instrument into the same digestive tract to make the circulatory anastomosis and which had to be closed at the end of the operation). The cost and duration of the procedure are thus reduced.

5- De part ces memes caractéristiques et la possibilité d'extraction de la cartouche et de l'enclume, l'instrument permettrait une nouvelle possibilité d'introduction par voie buccale particulièrement intéressante en chirurgie oesophagienne. 5- Given these same characteristics and the possibility of extraction of the cartridge and the anvil, the instrument would allow a new possibility of introduction by oral particularly interesting in esophageal surgery.

6 -L'instrument, selon l'invention, est pourvu d'un dispositif permettant de fournir une indication visuelle, sur une échelle millimétrique colorée, de la distance séparant la cartouche (contenant les agrafes et le couteau) de l'enclume. Ceci permet un ajustement précis de cette distance afin de la faire rentrer dans l'intervalle opératoire qui correspond à l'épaisseur des tissus des organes tubulaires humains à anastomoser. Cette meme échelle permet, une fois l'anastomose terminee, de visualiser l'enclenchement du système d'agrafage et de section par le couteau. 6 -The instrument according to the invention is provided with a device for providing a visual indication, on a colored millimeter scale, the distance between the cartridge (containing the staples and the knife) of the anvil. This allows a precise adjustment of this distance to bring it into the operating range which corresponds to the thickness of the tissues of the human tubular organs to be anastomosed. This same scale allows, once the anastomosis is completed, to visualize the engagement of the stapling and sectioning system by the knife.

7- Les instruments d'agrafages chirurgicaux circulaires antérieurs comportent une tige coaxiale rigide de régalage dont le diamètre est important. Ceci confère à ces instruments une faible distance entre cette tige coaxiale et le couteau et, de ce fait, moins de sécurité dans l'agrafage des tissus humains qui ont tendance à se rétracter. (Les collerettes de coupes résiduelles après l'anastomose sous forme de bague sont tres étroites.)
L'instrument selon l'invention comprend une tige flexible coaxiale d'un diamètre très faible (lmmou meme moins) permettant d'augmenter la distance entre la tige et le couteau circulaire et, par ce biais, une plus grande sécurité d'agrafage (collerette de coupes résiduelles larges). De plus, cette tige, de par sa finesse et son extrémité apicale pointue lui permettant de percer directement la paroi tissulaire ne nécessite pas la confection d'une bourse d'enfouissement dans les parties latérales des anastomoses (dJou gain de temps).
7- The prior circular surgical stapling instruments comprise a rigid coaxial rod of regaling of which the diameter is important. This gives these instruments a small distance between this coaxial rod and the knife and, as a result, less security in the stapling of human tissues that tend to retract. (The flanges of residual cuts after the anastomosis in the form of a ring are very narrow.)
The instrument according to the invention comprises a coaxial flexible rod with a very small diameter (1 mm or even less) making it possible to increase the distance between the rod and the circular knife and, by this means, greater security of stapling ( collar of large residual cuts). In addition, this rod, because of its fineness and pointed apical end allowing it to directly pierce the tissue wall does not require the construction of a burying pouch in the lateral parts of the anastomoses (or saving time).

8- L'instrument selon l'invention peut entre muni d'un dispositif apical integré à 17ins- trument et pouvant être associé ou dissocie de lui, servant à la dilatation non traumatisante des lumieres des tubes digestifs à anastomoser, afin d'adapter la cartouche (contenant agrafes et couteau) la plus proche. Ce meme dispositif facilite une fois l'anastomose terminée le retrait de l'instrument hors de la zone d'anastomose. The instrument according to the invention can be fitted with an apical device integrated with the instrument and capable of being associated or dissociated from it, serving for the non-traumatic dilation of the lumens of the digestive tubes to be anastomosed, in order to adapt the cartridge (containing staples and knife) nearest. This same device facilitates once the anastomosis is complete removal of the instrument outside the area of anastomosis.

La présente invention fournit un instrument flexible d'agrafage chirurgical circulaire utilisable pour la Jonction d'organes tubulaires du corps humain tels que les organes du tube digestif. The present invention provides a flexible circular surgical stapling instrument for use in joining tubular organs of the human body such as organs of the digestive tract.

L'instrument est composé d'une "tête", d'un "corps" et d'un manche". La téte de cet instrument est formée d'une cartouche amovible. Cette cartouche est composée d'un segment de cx71indre creux fermé par un cane ou un hémisphère à son sommet. Cette cartouche comporte un mécanisme de propulsion de deux rangées circulaires d'agrafes et d'un couteau circulaire vers une enclume lors de la manipulation d'une manette située sur le manche. Ceci par un mécanisme de traction sur un câble flexible tendu entre la cartouche et une manette sur le manche de l'instrument La base annulaire de la cartouche est creusée de formations alvéolaires, chacune re ceptrice d'une agraire, disposées concentriquement en deux rangées quinconcées. Entre l'élément propulseur des agrafes et le couteau circulaire, dénommés "marteau" d'une part, et la base de la cartouche d'autre part se trouve un ressort de compression. Celui-ci ne permet la sortie des agrafes et du couteau hors de la cartouche qu'une fois comprimé. Cela n'est possible que lorsque la cartouche est dans la position la plus proche possible de enclume, grâce à la manipulation de la manette. The instrument is composed of a "head", a "body" and a handle. "The head of this instrument consists of a removable cartridge.This cartridge is composed of a closed hollow cylinder segment. by a cane or a hemisphere at its top.This cartridge has a mechanism for propelling two circular rows of staples and a circular knife towards an anvil when manipulating a lever located on the handle. Tension on a flexible cable stretched between the cartridge and a lever on the handle of the instrument The annular base of the cartridge is hollowed out of cellular formations, each receiving an agrarian, arranged concentrically in two rows quinconcées. propeller element staple and circular knife, called "hammer" on the one hand, and the base of the cartridge on the other hand is a compression spring.The latter allows the release of the staples and knife out of the cartridge that Once compressed, this is only possible when the cartridge is in the position as close as possible to the anvil, thanks to the manipulation of the joystick.

L'enclume pouvant être également amovible comporte plusieurs creux servant à aplatir les agrafes. Elle est rattachée de façon amovible à l'une des extrémités du corps. Ce corps est composé d'un tuyau métallique spirale (similaire à un tuyau flexible de douche) permettant une flexibilité dans l'espace et une rigidité dans le sens axial de l'instrument une fois comprimé. 11 est rattaché à son autre extrémité au manche. Ce manche contient une manette à laquelle est rattache le cable qui passe axialement dans l'instrument jusqu'au marteau à travers enclume et le corps. The anvil can also be removable has several recesses for flattening the staples. It is attached removably to one end of the body. This body is composed of a spiral metal pipe (similar to a shower hose) allowing flexibility in space and rigidity in the axial direction of the instrument once compressed. It is attached at its other end to the handle. This handle contains a joystick to which is attached the cable that passes axially in the instrument to the hammer through anvil and the body.

Une fenêtre au niveau du manche montre ce câble sur lequel est dessiné une échelle millimétrique colorée permettant de connaître la distance cartouche/enclume dans un premier temps puis la distance marteau/enclume dans un second temps. A window at the handle shows the cable on which is drawn a colored millimeter scale to know the cartridge / anvil distance at first and then the distance hammer / anvil in a second time.

L'instrument peut en outre entre pourvu à l'extrémité de la cartouche d'un ballonnet en caoutchouc gonflable à distance à partir du manche de l'instrument et qui sert à la dilatation non traumatisante des lumières des tubes digestifs à anastomoser et pour le retrait de l'instrument hors de la zone d'anastomose après l'opération. The instrument can furthermore be provided at the end of the cartridge with an inflatable rubber balloon at a distance from the handle of the instrument and which serves for the non-traumatic dilation of the lumens of the digestive tubes to be anastomosed and for the removal of the instrument from the anastomosis area after the operation.

Deux variantes de ce dispositif sont proposes. Dans la première variante, préférable, car peu coûteuse, un ballonnet sous forme de doigt de gant est adapté sur le cone ou l'hémisphère du sommet de l'instrument et gonflé à l'extrémité du manche via un conduit sérique ou liquidien fixe dans l'instrument (å l'aide d'une seringue, par exemple). Two variants of this device are proposed. In the first variant, which is preferable because it is inexpensive, a balloon in the form of a thimble is adapted to the cone or hemisphere of the top of the instrument and inflated at the end of the handle via a fixed serum or fluid duct in the instrument (eg with a syringe).

La seconde variante utilise une sonde à ballonnet dont plusieurs type sont déjà commercialises, qui passent d'une extrémité de l'instrument à l'autre. Ceci est possible grâce à la réalisation d'un axe central linéaire et creux d'un bout à l'autre de l'instrument. The second variant uses a balloon probe of which several types are already commercialized, which pass from one end of the instrument to the other. This is possible thanks to the realization of a central axis linear and hollow from one end to the other of the instrument.

D'autres avantages et caractéristiques de l'invention seront mis en évidence dans la suite de la descriptiont donnée à titre d'exemples non limitatifs en référence aux dessins annexés:
- Figure I : vue en élévation latérale fragmentaire de l'instrument conforme à l'invention.
Other advantages and characteristics of the invention will be demonstrated in the following description given as non-limiting examples with reference to the accompanying drawings:
- Figure I: fragmentary side elevational view of the instrument according to the invention.

- Figure Il vue en coupe longitudinale fragmentaire de l'instrument suivant la ligne A-A de la Figure I. - Figure II fragmentary longitudinal sectional view of the instrument along the line A-A of Figure I.

- Figure III : vue en coupe longitudinale partielles à échelle agrandie de l@ "tête" (cartouche) de l'instrument.  - Figure III: partial longitudinal sectional view on an enlarged scale of the "head" (cartridge) of the instrument.

- Figure IV :agrandissement de la portion encerclee dans la Figure I I I.  - Figure IV: enlargement of the portion encircled in Figure I I I.

- Figure @: vue en coupe transversale de la tete de l'instrument suivant la ligne B-B de la
Figure II.
- Figure @: Cross-sectional view of the head of the instrument along line BB of the
Figure II.

- Figure VI: vue en coupe transversale de la base de la cartouche (vue suivant la ligne
C-C de la Figure II).
- Figure VI: cross-sectional view of the base of the cartridge (view along the line
CC of Figure II).

- Figure VII: vue en coupe transversale de l'enclume de l'instrument (vue suivant la ligne D-D de la Figure II). - Figure VII: cross-sectional view of the anvil of the instrument (seen along the line D-D of Figure II).

- Figure VIII: agrandissement de la portion encerclée dans la Figure VII montrant une paire de creux servant à l'écrasement d'une agrafe. - Figure VIII: enlargement of the portion encircled in Figure VII showing a pair of recesses for crushing a staple.

- Figure IX : vueen coupe fragmentaire faîte suivant la ligne E-E de la Figure VIII. - Figure IX: fragmentary sectional view taken along the line E-E of Figure VIII.

- Figure X : vue en coupe longitudinale de différentes étapes dans la réalisation d'une anastomose latéro-terminale entre gros intestin et petit intestin. - Figure X: longitudinal sectional view of different stages in the realization of a late-terminal anastomosis between large intestine and small intestine.

Les Figures I et II exposent l'instrument dans son ensemble. II comporte une tette (1), un corps (2) et un manche (3).  Figures I and II show the instrument as a whole. It comprises a tette (1), a body (2) and a handle (3).

Les parties sont en matiere plastique et/ou en métal de manière à convenir pour une utilisation dans un environnement chirurgical.Stérilisable par des mouens conventionnels, lin- vention se prête à une fabrication sous forme d un instrument à usage unique (jatable après un seul usage), d'un instrument à usage multiple chez le même patient sans être restérilisé lors de la même séance opératoire) ou d'un instrument du type permanent et réutilisable d'un patient à l'autre après restérilisation.
htitred'exemple, nous allons le décrire soussaformeà usage multiple chez le meme patient.
The parts are made of plastic and / or metal so as to be suitable for use in a surgical environment. Sterilizable by conventional slings, the invention lends itself to manufacture in the form of a disposable instrument (disposable after a single use), a multipurpose instrument in the same patient without being re-sterilized during the same operating session) or an instrument of the permanent type and reusable from one patient to another after resterilization.
For example, we will describe it as a multiple-use form for the same patient.

La tête (1) de l'instrument exposé de façon détaillée dans la Figure III se presente sous forme d'une cartouche amovible du reste de l'instrument. Elle est composée d'un segment de cylindre creux (11) réalisé préférentiellement en matiere plastique moulée. La base (12) de ce culi ndre (1 1) qui est en regard de l'enclume (18) (qui sera decrite ultérieurement), est élargie et annulaire d'une hauteur de 6mm environ et creusée de formations alvéolaires ( (13) réceptrices chacune d'une agrafe (14), disposées concentriquement en deux rangers quinconcées préférentiellement. The head (1) of the instrument shown in detail in Figure III is in the form of a cartridge removable from the rest of the instrument. It is composed of a hollow cylinder segment (11) preferably made of molded plastic material. The base (12) of this culi ndre (1 1) which is opposite the anvil (18) (which will be described later), is enlarged and annular with a height of about 6mm and hollowed out of alveolar formations ((13 ) each receiving a staple (14), arranged concentrically in two rows quinconcés preferentially.

Les agrafes métalliques (14) logées dans ces formations alvéolaires (13) ont une forme en U inverse.
la Figure VI montre cette base (12) de la cartouche (1) avec ses formations alvéolaires guides d'agrafes, dont une paire a été numérotée (1 (13) à titre d'exemple.
The metal staples (14) housed in these cellular formations (13) have an inverse U shape.
Figure VI shows this base (12) of the cartridge (1) with its alveolar staple guide formations, a pair of which has been numbered (1 (13) by way of example.

A l'intérieur du cylindre (11), se trouve le marteau composé d'un élément propulseur des agrafes ( 15) et un couteau circulaire (16).  Inside the cylinder (11) is the hammer composed of a propelling element staples (15) and a circular knife (16).

L'élément propulseur des agrafes est constitué d'une rondelle pleine dont la périphérie porte des doigts chasseurs d'agrafes (17) disposés concentriquement en deux rangées quinconcées préférentiellement et correspondant en nombre et en place aux formations alvéolaires guides d'agrafes (13) decrites plus haut. Ainsi, ces doigts chasseurs d'agrafes peuvent entrer et sortir librement dans les formations alvéolaires comme dans un jeu mâle/femelle.  The propelling element of the staples consists of a solid washer whose periphery carries staple-hunting fingers (17) arranged concentrically in two rows preferably staggered and corresponding in number and in place to the staple guide honeycomb formations (13). described above. Thus, these staple hunting fingers can enter and exit freely in the alveolar formations as in a male / female game.

L'élément propulseur d'agrafes peut etre réalisé de manière simple à partir de deux rondelles métalliques rayonnées, puis plicaturées et soudées ou collées, mais une fabrication en materiel plastique moulé est tout aussi possible. The staple propelling element can be made in a simple manner from two metal washers radiated and then plicated and welded or glued, but a manufacturing molded plastic material is just as possible.

Au centre de l'élément propulseur d'agrafes, et parallèlement auxdoigt@ chasseurs, est soude ou collé le couteau métallique circulaire (1 6). Celui-ci, taillé sur un segment cyli ndrique métal- lique, a le diamètre le plus proche possible du diamètre interne de la base de la cartouche sans limitation du jeu mâle/femelle décrit précédemment. In the center of the staple propelling element, and parallel to the hunters, is welded or glued the circular metal knife (1 6). The latter, cut on a cylindrical cylindrical segment, has the diameter as close as possible to the internal diameter of the base of the cartridge without limitation of the male / female clearance previously described.

La base pleine du marteau (19) comporte en son centre un orifice (20 > circulaire à méplat qui épouse exactement la forme de la tranche de section du cable flexible (21) qui le pénètre et qui sera décrit ultérieurement. The solid base of the hammer (19) comprises in its center a hole (20> circular flat which exactly matches the shape of the section of the flexible cable section (21) which penetrates and will be described later.

Un ressort à compression (22) est interposé entre l'élément propulseur des agrafes (de préférence entre les rangées circulaires des doigts chasseur agrafes d'une part et la base de la cartouche d'autre part). L'intérêt de celui-ci sera expliqué ultérieurement. A compression spring (22) is interposed between the staple propelling element (preferably between the circular rows of the staple hunting fingers on the one hand and the base of the cartridge on the other hand). The interest of this one will be explained later.

Le segment de cylindre (il) contenant le marteau (15+ 16) avec le ressort à compression (22) interposé, est fermé à sa seconde base par une surface annulaire (23) qui empêche la sortie du marteau hors du segment de cylindre. Cette surface annulaire possede un diamètre interne (24) fileté de manière à pouvoir recevoir l'épaulement fileté de la base d'un cêne ou d'une hémisphère (25) surmontant le segment de cylindre et épousant à sa base le meme diamètre externe que celui du segment de cylindre (11). The cylinder segment (11) containing the hammer (15 + 16) with the interposed compression spring (22) is closed at its second base by an annular surface (23) which prevents the exit of the hammer from the cylinder segment. This annular surface has an internal diameter (24) threaded so as to be able to receive the threaded shoulder of the base of a shaft or hemisphere (25) surmounting the cylinder segment and conforming at its base to the same external diameter as that of the cylinder segment (11).

Le corps (2) de l'instrument est composé d'un tuyau métallique spiralé (26) similaire à un flexible de douche (ou d'un ressort à traction gainé de même calibre), lui conférant une flexibilité dans l'espace et une rigidité dans le sens axial une fois comprime. Ce tuyau peut entre d'une longueur qui varie en fonction des besoins chirurgicaux. Un bouchon (27) métallique ou en plas- tique maintenu de façon fixe par soudage ou collage vient obturer l'extrémité (28) du tuyau spiralé.Ce bouchon troué à sa base (29) pour laisser passage au câble (21), comporte une rainure annulaire (30) qui est adaptée à un épaulement annulaire d'une pièce intermédiaire (31). La pièce intermédiaire peut par ce biais tourner librement dans le bouchon (27). La pièce intermédiaire (31) comporte un creux axial (32) qui est fileté intérieurement de manière à pouvoir être vissé sur l'épaulement fileté (33) de l'enclume (18). The body (2) of the instrument is composed of a spiral metal pipe (26) similar to a shower hose (or a sheathed tension spring of the same caliber), giving it flexibility in space and rigidity in the axial direction once compressed. This hose can be between a length that varies depending on the surgical needs. A plug (27) made of metal or plastic fixedly held by welding or gluing closes the end (28) of the spiral pipe.This plug with a hole in its base (29) for passing through the cable (21) comprises an annular groove (30) which is adapted to an annular shoulder of an intermediate piece (31). The intermediate piece can thereby rotate freely in the cap (27). The intermediate piece (31) has an axial recess (32) which is threaded internally so as to be screwed onto the threaded shoulder (33) of the anvil (18).

L'enclume métallique (1 8) a de préférence un profil tronconique pour faciliter le retrait de l'instrument après son utilisation. Son sommet est surmonté d'un épaulement (33) fileté extérieurement. L'enclume est traversée axialement par un trou circulaire à méplat (34) qui épouse exactement la forme de la tranche de section du cale flexible (21) qui le traverse. The metal anvil (18) preferably has a frustoconical profile to facilitate removal of the instrument after use. Its top is surmounted by a shoulder (33) threaded externally. The anvil is traversed axially by a circular hole flat (34) which fits exactly the shape of the section of section of the flexible shim (21) passing through.

La base de l'enclume (Figure VII) d'un diamètre équivalent à celui de la base de la cartouche (Figure VI) qu'elle regarde, est creusee dans sa partie centrale. Ce creux (35) a un diamètre très légèrement supérieur à celui du couteau circulaire (1 6) qui va venir s'y loger lors du fonctionnement de l'instrument. Ce creux agit comme une plaquette de coupe pour le couteau circulaire en soutenant le tissu en train autre découpé. La partie périphérique de la base de l'enclume se présente sous forme d'une collerette annulaire plane (36) de dimension similaire à la surface annulaire (37) de la base de la cartouche (1) qu'elle regarde. The base of the anvil (Figure VII) of a diameter equivalent to that of the base of the cartridge (Figure VI) that it looks, is hollowed in its central part. This hollow (35) has a diameter slightly greater than that of the circular knife (1 6) which will be housed there during operation of the instrument. This hollow acts as a cutting insert for the circular knife supporting the fabric in another cut-out train. The peripheral portion of the base of the anvil is in the form of a flat annular flange (36) of similar size to the annular surface (37) of the base of the cartridge (1) that it looks.

La collerette annulaire (36) comporte des petits creux (38) disposés concentriquement en miroirs avec les formations alvéolaires guides d'agrafes (13) de sorte que lors de la propulsion des agrafes, chacune de celles-ci vient s'ecraser dans une paire de petits creux. Chaque paire de petits creux (Figure VIII et IX) a une forme telle que l'agrafe en U inversé qui vient s'y écra- serJ va recevoir la forme d'un B couché. The annular flange (36) has small recesses (38) arranged concentrically in mirrors with the staple guide honeycomb formations (13) so that when the staples are propelled, each of them is crushed into a pair. small hollow. Each pair of small depressions (FIGS. VIII and IX) has a shape such that the inverted U-shaped clip which is crushed therein will receive the shape of a coated B.

La seconde extrémité du tuyau spirale 39) est fixee au manche (3J. Pour ce faire, un épaulement annulaire (40) est adapte à une rainure annulaire (41) sur le manche que l'on va décrire maintenant. The second end of the spiral pipe 39) is attached to the handle (3J, to do this, an annular shoulder (40) is fitted to an annular groove (41) on the handle which will now be described.

Le manche (3) est forme de deux moitiés symétriques qui sont réalises en matière plastique moulée et qui sont solidairement assemblées par soudages de façon bien connue. The handle (3) is formed of two symmetrical halves which are made of molded plastic and which are solidly assembled by welding in a well known manner.

Ces deux moities comportent toutes les deux une fenêtre transparente (42) au milieu de laquelle apparaît un repère fléché (54). Les extrémités (43) et (44) qui se poursuivent avec l'axe central de l'instrument ont toutes deux une configuration cylindrique. Ces configurations cylindriques comportent en leur partie interne un épaulement annulaire chacune. L'épaulement annulaire (45) s'sdapte à la rainure annulaire (46) du tuyau spiralé (26) alors que l'epau- lement annulaire (47) s'adapte à la rainure annulaire (48) sur la manette (46) de l'instrument. These two moities both include a transparent window (42) in the middle of which appears an arrowed mark (54). The ends (43) and (44) which continue with the central axis of the instrument both have a cylindrical configuration. These cylindrical configurations comprise in their inner part an annular shoulder each. The annular shoulder (45) is adapted to the annular groove (46) of the spiral pipe (26) while the annular shoulder (47) fits to the annular groove (48) on the handle (46). of the instrument.

L'axe du manche passant par les extrémités (43) et (44) laisse persister un tunnel creux (57) qui se poursuit avec la lumière du tuyau spiralé et correspondant à l'axe central de l'instrument (ligne A-A de la figure I).
ta manette de l'instrument (46) est indétachable du manche grace à ses rainures (48, 49) adaptées aux épaulements (47, 50) de ce manche et dotee d'une possibilité de mouvement circulaire sutour de l'axe central de l'instrument. Faite en matière plastique moulée, cette manette possède un prolongement cylindrique (51) qui passe dans le tunnel creux (57) du manche.
The axis of the handle passing through the ends (43) and (44) leaves a hollow tunnel (57) which continues with the light of the spiral pipe and corresponding to the central axis of the instrument (line AA of FIG. I).
your handle of the instrument (46) is indétachable the handle thanks to its grooves (48, 49) adapted to the shoulders (47, 50) of this sleeve and provided with a possibility of circular movement sutour of the central axis of the 'instrument. Made of molded plastic, this handle has a cylindrical extension (51) which passes into the hollow tunnel (57) of the handle.

Ce prolongement cylindrique (51) est lui-même creux sur toute sa longueur et jusque l'extrémité (58) dola manette. il estfiletédanssa partie intérieure de sorte que lors de la manipulation de la manette, le prolongement culindrique vient se visser sur la vis (52). Cette vis constitue l'extrémité terminale d'un câble fin et flexible (21) dont la tranche de section circulaireà méplat épouse exactement la forme des orifices (34) et (20) de l'enclume et du marteau qu'il traverse. Cette disposition permet une adaptation maximale des doigts chasseurs d'agrafes (17) contre les petits creux (38) de l'enclume lorsque l'instrument est ferme. L'autre extrémi- te du câble est filetée extérieurement sur 5mm environ afin de pouvoir recevoir l'écrou (53). Sa terminaison est pointue (60) afin de pouvoir percer les tissus humains. Le câble (21) qui traverse l'axe central de l'instrument du manche jusqu'au marteau, porte une échelle millimétrée visible à travers les fenêtres transparentes (42). La flèche (54) sur le manche de l'instrument indique le poin This cylindrical extension (51) is itself hollow throughout its length and to the end (58) dola joystick. it isfiletédanssa inner part so that when handling the lever, the culindrique extension is screwed on the screw (52). This screw constitutes the end end of a thin and flexible cable (21) whose slice of circular section flattened exactly matches the shape of the orifices (34) and (20) of the anvil and the hammer through which it passes. This arrangement allows a maximum adaptation of the staple hunting fingers (17) against the small recesses (38) of the anvil when the instrument is closed. The other end of the cable is threaded externally about 5mm in order to receive the nut (53). Its termination is sharp (60) in order to pierce human tissue. The cable (21) which crosses the central axis of the instrument from the handle to the hammer, carries a millimeter scale visible through the transparent windows (42). The arrow (54) on the handle of the instrument indicates the point

Nous allons maintenant décrire comment l'instrument selon l'invention est utilise et fonctionne. We will now describe how the instrument according to the invention is used and works.

A titre d'exemple, nous allons décrire le fonctionnement de l'instrument en référence, avec une simple opération d'anastomose latéro-terminale entre gros intestin et petit intestin (Fiqure X). As an example, we will describe the operation of the instrument with reference, with a simple operation of late-terminal anastomosis between large intestine and small intestine (Fiqure X).

La première étape consiste à enlever la cartouche amovible. Pour ce faire, on dévisse le cone ou l'hémisphère (25), puis l'écrou (53) et on retire le segment de cylindre (11). L'instrument dénudé de sa cartouche est alors introduit dans la lumière du gros intestin (Figure Xa > .  The first step is to remove the removable cartridge. To do this, we unscrew the cone or the hemisphere (25), then the nut (53) and remove the cylinder segment (11). The stripped instrument of its cartridge is then introduced into the lumen of the large intestine (Figure Xa>.

La terminaison pointue du cale flexible perce le gros intestin à l'endroit souhaité pour l'anastomose (Figure Xb). De par la finesse du câble flexible et de son extrémité pointue, aucune bourse sur cette partie latérale de l'anastomose n'est donc nécessaire. The pointed end of the flexible wedge pierces the large intestine at the desired location for the anastomosis (Figure Xb). Because of the fineness of the flexible cable and its pointed end, no purse on this lateral part of the anastomosis is therefore necessary.

Par manipulations de la manette de l'instrument dans un sens inverse à celui des aiguilles d'une montre, un rallongement de la partie extériorisée du câble à travers l'enclume se produit (Figure Xc) et affiche sur la fenêtre transparente des valeurs de plus en plus positives. Cette "ouverture" vient à etre limitée aux alentours de 60 à 70mm lorsque l'épaulement (55) de la vis (52) vient buter contre le butoir (56) à l'extrémité proximale du manche. By manipulating the joystick of the instrument in a counterclockwise direction, an extension of the externalized part of the cable through the anvil occurs (Figure Xc) and displays on the transparent window values of more and more positive. This "opening" is limited to around 60 to 70mm when the shoulder (55) of the screw (52) abuts against the stopper (56) at the proximal end of the handle.

La cartouche de l'instrument et alors réinsérée sur le cale (Figure Xd). Il est à ce stade important de bien veiller au bon positionnement du méplat du cible avec le méplat de l'orifice circulaire afin que puisse se faire l'adaptation maximale des doigts chasseurs d'agrafes contre les petits creux de l'enclume.  The cartridge of the instrument and then reinserted on the hold (Figure Xd). It is important at this point to ensure the correct positioning of the flat part of the target with the flat of the circular hole so that can be made the maximum adaptation of the staple hunting fingers against the small hollow of the anvil.

Une bourse est faufilée sur l'extrémité terminale de l'intestin grêle à anastomoser. La cartouche et alors introduite par son extrémité conique ou hémisphérique à travers la lumière de l'intestin grêle à anastomoser et préalablement prépare afin que son calibre puisse recevoir la tette de l'instrument qui est la cartouche. ta bourse est dès lors serre autour du cable (Figure
Xe).
A purse is threaded on the terminal end of the small intestine to be anastomosed. The cartridge and then introduced through its conical or hemispherical end through the lumen of the small intestine to anastomose and previously prepared so that its caliber can receive the tette of the instrument which is the cartridge. your purse is then tightened around the cable (Figure
Xe).

Cette préparation peut se faire bien évidemment à l'aide de bougies métalliques de calibre progressivement croissant. Mais il est de loin préférable d'utiliser la variante de notre instrument comportant le dispositif intégré de dilatation par ballonnet gonflable qui est atraumatique et de plus beaucoup plus commode. Cette variante de l'instrument sera décrite par la suite. This preparation can be done obviously with the help of metal candles gradually increasing caliber. But it is far better to use the variant of our instrument with the integrated device of inflatable balloon dilation which is atraumatic and moreover much more convenient. This variant of the instrument will be described later.

Par manipulation de la manette de l'instrument dans le sens des aiguilles d'une montre, un raccourcissement du câble et un rapprochement concomitant de la cartouche vers l'enclume se produisent. Ce mouvement de "fermeture" s'affiche sur la fenêtre transparente par un retour vers la valeur zéro. Les valeurs affichées traduisent à ce marnent la distance séparant la base de la cartouche de la base l'enclume. Une petite résistance tactile à la poursuite du mouvement de fermeture est ressentie par l'opérateur une fois arrivée à la valeur de l'intervalle opératoire et qui vient à être affichée sur la fenêtre transparente (valeur de l'ordre de 3 à 4mm environ). Cet intervalle opératoire correspond aux épaisseurs des tissus à joindre. Ces derniers sont interposés entre la base de la cartouche et l'enclume (somme des épaisseurs du petit et du gros i ntesti ns dans l'exemple présenté (Figure Xf)). Cet intervalle aurait pu être mesuré préalablement par le chirurgien (par exemple à l'aide d'instruments de mesure d'épaisseur de tissus décrits au brevet
FR 80 26721). La résistance tactile décrite précédemment est liee au ressort à compression (22) interposé entre l'élément propulseur des agrafes et la base de la cartouche et dont le rie est d'éviter la sortie des agrafes et du couteau circulaire hors de la cartouche tant que l'intervalle opératoire n'est pas atteint.
By manipulating the instrument handle in a clockwise direction, shortening of the cable and concomitant approximation of the cartridge to the anvil occur. This "closing" movement is displayed on the transparent window by a return to the zero value. The displayed values translate to this marnent the distance separating the base of the cartridge from the base the anvil. A small tactile resistance to the pursuit of the closing movement is felt by the operator when he reaches the value of the operating interval and which is to be displayed on the transparent window (value of the order of 3 to 4 mm approximately) . This operating interval corresponds to the thickness of the tissues to be joined. The latter are interposed between the base of the cartridge and the anvil (sum of the thicknesses of the small and large nests in the example presented (Figure Xf)). This interval could have been measured beforehand by the surgeon (for example by means of tissue thickness measuring instruments described in the patent
FR 80 26721). The tactile resistance described above is related to the compression spring (22) interposed between the staple propelling element and the base of the cartridge and whose ria is to avoid the exit of the staples and the circular knife out of the cartridge as long as the operative interval is not reached.

La poursuite du mouvement de fermeture contre cette résistance provoque une traction du marteau vers l'enclume. Les agrafes contenues dans les formations alvéolaires guides d'agrafes sont alors propulsées par les doigts chasseurs d'agrafes vers les petits creux de l'enclume. Elles traversent les épaisseurs des deux tissus à joindre situés dans l'intervalle opératoire et s'ecrasent dans les petits creux. C'est alors quelles prennent une forme de B couché. Continuing the closing movement against this resistance causes a pull of the hammer towards the anvil. The staples contained in the alveolar formations staple guides are then propelled by the staple hunting fingers to the small recesses of the anvil. They cross the thicknesses of the two tissues to be joined located in the operative interval and crush in the small hollow. It is then that they take a B-lying form.

De façon concomitante, le couteau circulaire s'enfonce vers le creux (35) de l'enclume coupant à son passage comme à l'emporte-pièce, deux rondelles de tissus au dépens de chacun des tissus à joindre. (Une rondelle de gros intestin et une rondelle d'intestin grêle dans l'exemple présenté.) Ceci dans le but de rétablir une lumière entre les deux segments tubulaires du tube digestif à joinre. Cette lumière est plus grande que dans les instruments à anastomose circulaire rigide actuellement sur le marché (brevets US 3.315.863, US 3.494.533, FR 8100575) grâce au diamètre du couteau circulaire conçu pour avoir le diamètre le plus proche possible du diamètre interne de la base de la cartouche. Ceci diminue d'une part le risque de sténose de l'ana- stomoxe et facilite le retrait de 1 'instrument d'autre part. Par ailleurs, de part le diamètre de ce couteau circulaire précédemment decrit et le faible calibre du cabale flexible (21) > une plus grande distance entre tige axiale et couteau circulaire est obtenue. Ceci confère à cet instrument une plus grande sécurité de l'anastomose en donnant des collerettes annulaires de coupe tres large (rondelles pleines pratiquement). Concomitantly, the circular knife sinks towards the recess (35) of the anvil cutting in its passage as the punch, two washers of tissue at the expense of each of the tissues to be joined. (A slice of large intestine and a slice of small intestine in the example presented.) This is to restore light between the two tubular segments of the digestive tract to be joined. This light is larger than in rigid circular anastomosis instruments currently on the market (US Pat. No. 3,315,863, US Pat. No. 3,494,533, FR 8100575) due to the diameter of the circular knife designed to have the diameter as close as possible to the internal diameter. from the base of the cartridge. This decreases the risk of anastomosis stenosis and facilitates removal of the instrument from the other hand. Moreover, because of the diameter of this circular knife previously described and the low caliber of the flexible cabal (21)> a greater distance between axial rod and circular knife is obtained. This gives this instrument greater safety of the anastomosis by giving annular collars very wide cut (practically full washers).

Le bon deroulement de l'anastomose se traduit au niveau de la fenêtre transparente par une baisse de la valeur affichée de quelques millimetres (3 à 4mm en moyenne par rapport à la valeur de l'intervalle opératoire affiché antérieurement). The good progress of the anastomosis is reflected in the transparent window by a drop in the displayed value of a few millimeters (3 to 4mm on average compared to the value of the operating interval previously displayed).

La dernière etape consiste à retirer l'instrument hors des lumières digestives une fois l'anastomose terminée. Pour ce faire, une réouverture de l'instrument est nécessaire (Figure
Xg).Cette réouverture va libérer la collerette annulaire anastomotique saisie entre la base de la cartouche et la base de l'enclume quand l'instrument est fermé. Puis, un mouvement de rota tionZenfoncement de l'instrument fait passer l'enclume au-dessus de cette collerette annulaire anastomotique. L'instrument est alors refermé. Par un mouvement de rotation/traction, il est retire hors des lumières digestives en repassant par la zone d'anastomose. Le profil tronconique de l'enclume facilite ce passage qui peut eAtre par silleurs encore plus facilite par les instrument comportant l'option du ballonnet gonflable apical que nous allons décrire maintenant.
The final step is to remove the instrument from the digestive lumen once the anastomosis is complete. To do this, a reopening of the instrument is necessary (Figure
Xg). This reopening will release the anastomotic ring collar seized between the base of the cartridge and the base of the anvil when the instrument is closed. Then, a rotational movement. Depression of the instrument causes the anvil to pass above this annular anastomotic collar. The instrument is then closed. By a movement of rotation / traction, it is removed out of the digestive lumens by ironing by the zone of anastomosis. The frustoconical profile of the anvil facilitates this passage, which can be made even easier by instruments with the option of the inflatable balloon apical we will now describe.

Le modèle à option ballonnet apical gonflable est similaire en tous points au modèle de base del'instrumentque nous avons décrit en détails jusqu'à présent. Il comporte par rapport au modèle de base un axe central d'instrument creux sur toute sa longueur du centre de la manette (58) Jusqu'au sommet du cône ou de l'hémisphère (59). Cet axe central creux est constitue par la succession d'une manette à prolongement cylindrique creuse sur toute sa longueur, dune vis (52) creuse le long de son axe poursuivie d'un câble flexible (21) creux également le long de son axe et jusqu'à sa terminaison pointue (60) à son autre extrémité. Cette succession d'éléments creux aboutit à la formation d'un conduit étanche par lequel peut se faire une injection d'air ou de liquide. L'orifice (58) au centre de la manette est de diamètre convenable pour recevoir l'embout d'une seringue par laquelle l'air ou le liquide sont injectés. The inflatable apical balloon option model is similar in all respects to the basic model of the instrument we have described in detail so far. It has in relation to the basic model a central hollow instrument axis along its entire length from the center of the handle (58) to the apex of the cone or the hemisphere (59). This hollow central axis is constituted by the succession of a cylindrical extension handle hollow over its entire length, a screw (52) hollow along its axis continued with a flexible cable (21) also hollow along its axis and until its pointed end (60) at its other end. This succession of hollow elements results in the formation of a sealed conduit through which an injection of air or liquid can take place. The orifice (58) in the center of the handle is of suitable diameter to receive the tip of a syringe through which air or liquid is injected.

Le cône ou l'hémisphère à la tête de l'instrument est troue à son sommet de sorte que l'air ou le liquide injecté par le centre de la manette va s'échapper par ce trou (59). The cone or hemisphere at the top of the instrument is pierced at its top so that air or liquid injected through the center of the handle will escape through this hole (59).

Les ballonnets gonflables sont faits d'une matière en caoutchouc ou d'une matière synthé- tique similaire. Deux variantes de l'option ballonnet gonflable apical sont proposes. Dans une premiere variante (Figure Xl), qui nous semble préférable, car peu couteuse, un ballonnet en forme de doigt de gant (61) est manchonné par sua base autour de l'épaulement fileté (25) du cone ou de l'hémisphère préalablement dévissé du segment de cylindre (11). Ce cône ou hémisphère manchonné du ballonnet est ensuite revissé sur le segment de cylindre cylindre (un joint torique peut être necessaire entre la base du cône ou de l'hémisphère et la base du segment de cylindre pour garder l'étanchéité). Dès lors une seringue adaptée sur l'orifice (58) au centre de la manette va pouvoir gonfler ce ballonnet avec de l'air ou du liquide. Inflatable balloons are made of a rubber material or a similar synthetic material. Two variants of the apical inflatable balloon option are proposed. In a first variant (FIG. Xl), which seems to us preferable because it is inexpensive, a balloon in the form of a thimble (61) is cuffed by its base around the threaded shoulder (25) of the cone or the hemisphere previously unscrewed from the cylinder segment (11). This cone or cuffed hemisphere of the balloon is then screwed onto the cylinder cylinder segment (an O-ring may be needed between the base of the cone or hemisphere and the base of the cylinder segment to keep the seal). Therefore a syringe adapted to the orifice (58) in the center of the lever will be able to inflate this balloon with air or liquid.

Dans une seconde variante (Figure XII), un ballonnet gonflable est porté à l'une des extrémités d'une sonde (62), et gonflable par une seringue à son autre extrémité. Une sonde de ce type (62) peut être introduite dans l'axe central creux de l'instrument afin de retrouver le ballonnet à la tete de l'instrument. Ce ballonnet etant gonflable par l'autre extrémité de la sonde extériorisée par l'orifice (58) de la manette. In a second variant (Figure XII), an inflatable balloon is carried at one end of a probe (62), and inflatable by a syringe at its other end. A probe of this type (62) can be introduced into the hollow central axis of the instrument in order to find the balloon at the head of the instrument. This balloon being inflatable by the other end of the probe exteriorized by the orifice (58) of the joystick.

Cette seconde variante outre son coût plus important que la première, pourrait nécessiter un calibre un peu plus important du cale flexible (21). This second variant in addition to its greater cost than the first, may require a slightly larger caliber of the flexible shim (21).

L'intérêt principal daces modèles à option ballonnetapical gonflable est lié à la dilatation non traumatisante des lumières du tube digestif à anastomoser afin d'introduire l'instrument dans ces lumières (Figure XIII). Elle se faisait jadis par passages successifs de bougies métalliques de calibre progressivement croissant distinctes des instrument à anastomose. Elle se fait dans 1' instrument à option ballonnet apical gonflable du présent brevet par gonflage progressif d'un ballonnet à la rate de l'instrument. Ce mode de dilatation, outre sa propriété atraumatique pour les tissus humains, est d'un gain de temps considérable pour le chirurgien. Par ailleurs, et secon dairement, ce ballonnet gonflable peut faciliter le retrait de l'instrument hors du tube digestif une fois l'anastomose termi nee. The main interest daces inflatable balloonapical option models is related to the non-traumatic dilatation of the lumens of the digestive tract to be anastomosed in order to introduce the instrument into these lumens (Figure XIII). It was formerly made by successive passages of metal candles gradually increasing caliber distinct instruments anastomosis. It is made in the inflatable apical balloon option instrument of the present patent by progressively inflating a balloon at the spleen of the instrument. This mode of expansion, in addition to its atraumatic property for human tissue, is a considerable time saver for the surgeon. Furthermore, and secondarily, this inflatable balloon can facilitate removal of the instrument from the digestive tract once the anastomosis is complete.

Les figures Xlll, XIV et XV montrent la réalisation d'une anastomose latero-terminale entre gros intestin et petit intestin à l'aide de l'instrument à option ballonnet gonflable apical conforme à l'invention.  FIGS. XIII, XIV and XV show the realization of a latero-terminal anastomosis between the large intestine and the small intestine using the apical inflatable balloon option instrument in accordance with the invention.

Claims (10)

REVENDICATIONS 1 - Instrument pour la confection d'anastomoses circulaires invaginantes entre organes tubulaires d'un être vivant par agrafes chirurgicales, caractérisé en ce qu'il comprend: une tête formée d'une cartouche (1),articulée axialement de façon amovible à l'extrémité d'un câble fle- xible (21) fin d'un corps (2) forme d'un tuyau métallique spiralé flexible (26), articule à l'une de ses extrémités à une enclume (18) amovible de li, et articulé à son autre extrémité à un manche (3) lequel manche est porteur d'une manette (46) à laquelle est vissée une vis (52) qui est amarrée à l'autre extrémité du câble flexible (21). Ce câble flexible (21) traverse coaxialement l'instrument à travers l'axe axial de ladite enclume (1 8 > et jusqu'à ladite cartouche (1) et est déplaçable axialement en meme temps que la cartouche (1) qui lui est amarrée par manipulation de ladite manette (46). 1 - Instrument for the preparation of invaginating circular anastomoses between tubular organs of a living being by surgical staples, characterized in that it comprises: a head formed of a cartridge (1), articulated axially removably to the end of a flexible cable (21) end of a body (2) forms a flexible spiral metal pipe (26), hinged at one of its ends to a removable anvil (18) li, and articulated at its other end to a handle (3) which handle carries a lever (46) to which is screwed a screw (52) which is moored to the other end of the flexible cable (21). This flexible cable (21) coaxially crosses the instrument through the axial axis of said anvil (1 8> and up to said cartridge (1) and is axially displaceable at the same time as the cartridge (1) which is docked to it by manipulation of said handle (46). Ladite cartouche (1) est composée d'un segment de cylindre (11) creux, ferme par un cone creux ou un hémisphère creuse (25) qui se visse sur lui. Ledit segment de cylindre (11) possède une base annulaire (12) creusée de formations alvéolaires (13) réceptrices chacune d'une agrafe (14) et disposées concentriquement en une ou plusieurs rangées quinconcees. Ladite base annulaire (12) regarde la surface active de l'enclume (36) solidaire du corps (26) et comportant des petits creux (38) en miroir avec ces formations alvéolaires (13). Said cartridge (1) is composed of a hollow cylinder segment (11) closed by a hollow cone or a hollow hemisphere (25) which is screwed on it. Said cylinder segment (11) has an annular base (12) hollow cellular formations (13) each receiving a clip (14) and arranged concentrically in one or more rows staggered. Said annular base (12) looks at the active surface of the anvil (36) integral with the body (26) and having small recesses (38) in mirror with these cellular formations (13). Ledit segment de cylindre (11) contient un marteau (15+16) qui coulisse à l'intérieur de lui et qui est composé d'un elément propulseur des agrafes (15) et d'un couteau circulaire ( 16) solidaires entre eux à l'aide d'une base commune (19) au centre de laquelle existe un orifice circulaire à méplat (20) similaire à l'orifice axial de l'enclume (34) et correspondant à la tranche de section du cable flexible (21) qui traverse ces deux orifices. Said cylinder segment (11) contains a hammer (15 + 16) which slides inside it and which is composed of a propelling element of the staples (15) and a circular knife (16) integral with each other at using a common base (19) in the center of which there is a circular orifice flat (20) similar to the axial orifice of the anvil (34) and corresponding to the section of the section of the flexible cable (21) which crosses these two orifices. Ledit élément propulseur d'agrafes (15) possede des doigts chasseur d'agrafes (17) disposes concentriquement en une ou plusieurs rangées quinconcees qui peuvent coulisser librement dans les formations alvéolaires (13) comme dans un jeu mâle/femelle en l'absence d'agrsfes. Ledit couteau circulaire (16) coulisse librement à la périphérie interne de ladite base annulaire (12) de la cartouche (1) et ce, de façon concomitante avec les doigts chasseurs d'agrafes (17). Said staple propelling member (15) has staple-hunting fingers (17) arranged concentrically in one or more staggered rows which can slide freely in the cellular formations (13) as in a male / female game in the absence of 'agrsfes. Said circular knife (16) slides freely at the inner periphery of said annular base (12) of the cartridge (1) and this, concomitantly with the staple-hunting fingers (17). Un ressort de compression (22) interposé entre l'élément propulseur des agrafes (15) et la base annulaire (1 2) de la cartouche (1) crée une petite résistance élastique audit jeu màle/femelle des doigts chasseurs dans les formations alvéolaires (13). A compression spring (22) interposed between the propelling element of the staples (15) and the annular base (1 2) of the cartridge (1) creates a small elastic resistance to said male / female play of the hunting fingers in the honeycomb formations ( 13). Le dit câble flexible (21) possède une première extrémité pointue (60 > , puis filetée sur laquelle vient se visser l'écrou (53) après sa traversée de l'orifice circulaire à meplat (20) dudit marteau(15+16) sur lequel cet écrou (53) s'assoit. La seconde extrémité dudit câble flexible (21) est solidarisée à une vis (52), laquelle vis est vissée sur un prolongement creux fileta, (51) de la manette (58). Une échelle millimétrée colorée est dessinée sur ledit câble flexi ble (21) qui est visible au travers d'une fenêtre transparente (42) située au niveau du manche (3). Les valeurs affichees à travers cette fenêtre (42) indiquent la valeur en millimètres de la distance entre la base annulaire (12) de la cartouche (1) et la surface active (36) de l'enclume (18}.  Said flexible cable (21) has a pointed first end (60>, then threaded on which is screwed the nut (53) after passing through the circular hole meplat (20) of said hammer (15 + 16) on The second end of said flexible cable (21) is secured to a screw (52), which screw is screwed to a threaded hollow extension, (51) of the handle (58). A colored millimeter is drawn on said flexible cable (21) which is visible through a transparent window (42) located at the handle (3) .The values displayed through this window (42) indicate the value in millimeters of the distance between the annular base (12) of the cartridge (1) and the active surface (36) of the anvil (18). La manipulation de la manette (46) dans un sens de fermeture crée une traction sur le câble flexible (21), qui rapproche progressivement la cartouche < 1 > vers l'enclume (18) dans un premier temps. Ce premier temps se termine lors de l'entrée en contact de ladite cartouche (1) avec ladite enclume (18) directement ou indirectement par tissus d'être vivants interposés. The manipulation of the handle (46) in a closing direction creates a pull on the flexible cable (21), which progressively brings the cartridge <1> towards the anvil (18) in a first step. This first time ends when the said cartridge (1) comes into contact with the said anvil (18) directly or indirectly by interposed living tissues. La poursuite du mouvement de traction sur le câble flexible par manipulation de la manette (46) dans un sens de fermeture constitue le second temps, perceptible tactilement < sous forme d'une petite resistance) et visualisable sur la fenêtre transparente (42). Lors de ce second temps, le marteau (15+16) est attiré vers l'enclume (1 18), chassant à son passage les agrafes (1 14 en U inverse contenues dans les formations alvéolaires (13), lesquelles agrafes (14) viennent s'ecra- ser contre les petits creux (38) de l'enclume (18) pour recevoir une forme de B couché.Continuing the traction movement on the flexible cable by manipulating the handle (46) in a closing direction is the second time, perceptible tactilely <in the form of a small resistance) and can be viewed on the transparent window (42). During this second step, the hammer (15 + 16) is attracted towards the anvil (1 18), driving the staples (1 14 in reverse U contained in the alveolar formations (13), which staples (14) come against the small depressions (38) of the anvil (18) to receive a coated B shape. 2 - Instrument selon la revendication 1, caractérisé en ce que ledit câble flexible (21) est de faible diamètre fabrique en toute matière biocompatible lui procurant une flexibilité spa- tiale et une certaine solidité axiale. Ledit câble flexible (21) est caractérisé en outre en ce qu'il comporte une échelle millimétrée colorée visible à son passage par une fenêtre transparente (42) au niveau du manche (3) de l'instrument, indiquant la distance entre la base (12) de la cartouche (1) et la base (36) de l'enclume (18), puis de l'intervalle opératoire et enfin du bon déroulement de l'opération d'anastomose. 2 - Instrument according to claim 1, characterized in that said flexible cable (21) is small diameter fabricated in any biocompatible material providing it with a spatial flexibility and a certain axial strength. Said flexible cable (21) is further characterized in that it comprises a colored millimeter scale visible in its passage through a transparent window (42) at the handle (3) of the instrument, indicating the distance between the base ( 12) of the cartridge (1) and the base (36) of the anvil (18), then the operating interval and finally the smooth running of the operation of anastomosis. 3 - Instrument selon les revendications 1 et 2 caractérisé en ce que ledit câble flexible (21) comporte une tranche de section circulaire à un ou plusieurs méplats (ou est gainé d'une tige flexible comportant cette même forme) qui épouse exactement la forme des orifices circulaires à méplats de l'enclume (34) et de la base du marteau (20) lors du passage dudit câble à travers ces dites pièces < 34et 20). 3 - Instrument according to claims 1 and 2 characterized in that said flexible cable (21) comprises a slice of circular section with one or more flats (or is sheathed with a flexible rod having the same shape) which matches exactly the shape of the circular orifices flats of the anvil (34) and the base of the hammer (20) during the passage of said cable through said parts <34 and 20). 4 - Instrument selon les revendications là 3, caractérisé en ce que ledit tuyau métallique spiralé ou le ressort de traction gainée (26} est de longueurs differentes en fonction des besoins chirurgicaux et possède deux extrémités dont l'une est rattachée au manche (3) de l'i nstrument, et la seconde supporte de façon amovible et interchangeable l'enclume (18). 4 - Instrument according to claims there 3, characterized in that said spiral metal pipe or the sheathed tensile spring (26) is of different lengths depending on the surgical needs and has two ends, one of which is attached to the handle (3) of the instrument, and the second releasably and interchangeably supports the anvil (18). 5 - Instrument selon les revendications 1 à 4, caractérisé en ce que la cartouche (1) contenant les agrafes et le marteau (15+16) est à l'une des extrémités de l'instrument défini comme étant la tête de l'instrument ; cette cartouche (1) regardant par sa base annulaire (12) la surface active (36) de l'enclume (18), est portée sur le câble flexible (21) et amovible par rapport à lui. Ladite cartouche (1) est mobilisable dans le sens axial de l'instrument en meme temps que le câble flexible (21), et ce par rapport à l'enclume (18) solidaire du corps (2) de l'instrument lors de son fonctionnement. 5 - Instrument according to claims 1 to 4, characterized in that the cartridge (1) containing the staples and the hammer (15 + 16) is at one end of the instrument defined as being the head of the instrument ; this cartridge (1) looking by its annular base (12) the active surface (36) of the anvil (18), is carried on the flexible cable (21) and removable relative thereto. Said cartridge (1) can be mobilized in the axial direction of the instrument along with the flexible cable (21), and this relative to the anvil (18) integral with the body (2) of the instrument during its operation. operation. 6 - Instrument selon les revendications l à 5, caractérisé en ce qu'il comporte un moyen de traction sur ledit cêblefiexible (21) qui rapproche dans un premier temps la base annulaire (12) de la cartouche (1) de la surface active (36) de l'enclume (18) et, dans un second temps, cree une traction sur la base dudit marteau (20), provoquant la sortie des agrafes et du couteau circulaire hors de la cartouche. 6 - Instrument according to claims 1 to 5, characterized in that it comprises a traction means on said cieblefiexible (21) which approximates at first the annular base (12) of the cartridge (1) of the active surface ( 36) of the anvil (18) and, in a second step, creates a pull on the base of said hammer (20), causing the staples and the circular knife to come out of the cartridge. 7 - Instrument selon la revendication 6, caractérisé en ce que le moyen de traction sur le câble flexible (21) s'exerce à l'aide d'une manette (46) comportant un prolongement cylindrique fileté qui se visse à ladite vis (52), elle-meme amarrée à l'extrémité (55 ) du câble flexible (21) par phénomène de soudage. 7 - Instrument according to claim 6, characterized in that the traction means on the flexible cable (21) is exerted using a handle (46) having a threaded cylindrical extension which is screwed to said screw (52). ), itself moored to the end (55) of the flexible cable (21) by welding phenomenon. 8 - Instrument selon les revendications 1 à 7, caractérisé en ce qu'il comporte en outre un moyen de dilatation non traumatisante des tissus tubulaires vivants,constitué par un ballonnet apical gonflable situe à la rate de l'instrument et contrôlé à partir du manche dudit instrument. 8 - Instrument according to claims 1 to 7, characterized in that it further comprises a means of non-traumatic expansion of living tubular tissues, consisting of an inflatable apical balloon located at the spleen of the instrument and controlled from the handle of that instrument. 9- Instrument selon la revendication 8 caractérisé en ce que l'axe longitudinal de l'instrument (Axe A-A) est creux sur toute sa longueur, du centre de la manette (58) jusqu'au sommet du cône (59), permettant de realiser un conduit étanche par lequel ledit ballonnet gonflable apical est contrôlé à parti r du manche de l'instrument.  9- The instrument of claim 8 characterized in that the longitudinal axis of the instrument (AA axis) is hollow throughout its length, the center of the handle (58) to the top of the cone (59), allowing constructing a sealed conduit through which said apical inflatable balloon is controlled from the handle of the instrument. 10 - Instrument selon les revendications 8 et 9 caractérisé en ce que ledit ballonnet gonflable apical est soit enchape sur le cone de l'instrument < 61), soit porte sur une sonde (62) traversant ledit axe longitudinal creux (Axe A-A) de de l'instrument.  10 - Instrument according to claims 8 and 9 characterized in that said inflatable balloon apical is either enchape on the cone of the instrument <61), or bears on a probe (62) passing through said hollow longitudinal axis (AA axis) of de the instrument.
FR9204490A 1992-04-13 1992-04-13 FLEXIBLE SURGICAL STAPLING INSTRUMENT FOR CIRCULAR ANASTOMOSES. Expired - Lifetime FR2689749B1 (en)

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