A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 25/00 (2006.01) A61B 17/34 (2006.01) A61J 15/00 (2006.01)
Patent
CA 2709783
It is intended to provide a guide tube having balloons for puncture which comprises a main body tube (1) having a balloon on the surface in the tip side, wherein the balloon on the surface of the tip side as described above is provided as an outer balloon (2), a needle through hole, through which a puncture needle (22) passes, is formed in the wall of the main body tube (1) located inside the outer balloon (2), this hole is air-tightly blocked with an inflatable sheet material, and this sheet material is provided as an inner balloon (9). When the outer balloon (2) is inflated, the inner balloon (9) is inflated and projects from the needle through hole toward the inside of the main lumen (5) due to the inner pressure of the outer balloon (2), which makes it possible to pierce the tip of the puncture needle (22) into the projected area. Thus, a deeper puncture can be ensured and a transdermal approach route into the body can be safely and surely formed.
La présente invention concerne un tube de guidage pour ponction doté de ballonnets, comprenant un tube de corps principal (1) ayant un ballonnet sur la surface du côté de l'extrémité. Ledit ballonnet tel que décrit ci-dessus est fourni en tant que ballonnet externe (2). Un trou traversant pour aiguille, à travers lequel passe une aiguille de ponction (22), est formé dans la paroi du tube de corps principal (1) situé à l'intérieur du ballonnet externe (2). Ledit trou est fermé de manière hermétique avec un matériau en feuille gonflable, et ledit matériau en feuille est fourni en tant que ballonnet interne (9). Lorsque le ballonnet externe (2) est gonflé, le ballonnet interne (9) est gonflé et se projette du trou traversant pour aiguille vers l'intérieur de la lumière principale (5) sous l'effet de la pression interne du ballonnet externe (2). Ceci permet à la pointe de l'aiguille de ponction (22) de percer la zone projetée. Ainsi, la présente invention garantit une ponction plus profonde et la formation d'une voie d'approche transdermique dans le corps, en toute sécurité et sans risque d'erreur.
Oishi Hideto
Sakaguchi Yukihiko
Oishi Hideto
Smart & Biggar
Sumitomo Bakelite Co. Ltd.
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