Apparatus for simultaneously holding and sealing tissue

Details Apparatus for simultaneously holding and sealing tissue Apparatus for simultaneously holding and sealing tissue

A - Human Necessities

61

B

A61B 17/00 (2006.01)

Patent

CA 2176580

An apparatus (10) for sealing approximated edges of tissue with thermal energy includes a clamp (16) having members (28,30) which grasp and hold tissue. A transmissive material (52) is supported by at least one of the members. The members (28, 30) pivot to pull the tissue edges in tight approximation against the transmissive material (52) to form a seam. Thermal energy is then directed at the tissue through the transmissive material (52) and at the seam with sufficient intensity and duration to heat the tissue to an adhesive proteinaceous substance to seal the seam. The approximated seam is held against the transmissive material (52) with an appropriate pressure to avoid over inverted or over everted tissue approximation.

L'invention concerne un appareil (10) destiné à souder les bords tenus ensemble de tissus, en utilisant de l'énergie thermique. Cet appareil comporte une pince (16) ayant des éléments (28, 30) qui serrent et maintiennent les tissus. Un matériau transmetteur (52) est supporté par au moins un des éléments. Les éléments (28, 30) pivotent pour amener les bords des tissus en contact étroit avec le matériau transmetteur (52) pour former une soudure. De l'énergie thermique est alors dirigée vers les tissus à travers le matériau transmetteur (52) et au niveau de la soudure avec une intensité et pendant une durée suffisantes pour chauffer les tissus jusqu'à les transformer en une substance protéinique adhésive permettant de sceller la couture. Les bords rapprochés sont maintenus contre le matériau transmetteur (52) avec une pression appropriée pour éviter un retournement excessif des bords vers l'extérieur ou vers l'intérieur.

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