Abstract: A tissue suturing device includes a body and a plurality of suture needles. The body includes a guide segment and a tube segment. The guide segment contains a suture needle channel. The tube segment has an accommodating cavity communicated with the suture needle channel. Each of the suture needles includes a main needle segment and a puncture needle segment connected with and spaced apart from the main needle segment. Two of the suture needles, together, connect a suture thread releasably between the puncture needle segments of the two suture needles. The main needle segments are arranged in the suture needle channel. The puncture needle segments carry the suture thread and are located in the accommodating cavity. Each of the suture needles moves along the suture needle channel such that the puncture needle segment returns to the accommodating cavity alone after passing with the suture thread through a tissue wall.

Abstract: A drug-delivery cannula assembly includes a cannula housing adapted for receiving at least one obturator shaft of an obturator assembly therethrough, one or more cannulae, and a supply line coupled to the cannula housing. The cannula housing is adapted for receiving one or more obturator shafts of an obturator assembly therethrough. The one or more cannulae define a longitudinal axis and a passageway aligned with the longitudinal axis. The one or more cannulae each include a proximal end coupled to the cannula housing. The cannula housing is configured to fluidly-couple the one or more cannulae to a source of a drug delivery supply for supplying drugs via the supply line to the one or more cannulae.

Abstract: A drug-delivery cannula assembly includes a cannula housing adapted for receiving at least one obturator shaft of an obturator assembly therethrough, one or more cannulae, and a supply line coupled to the cannula housing. The cannula housing is adapted for receiving one or more obturator shafts of an obturator assembly therethrough. The one or more cannulae define a longitudinal axis and a passageway aligned with the longitudinal axis. The one or more cannulae each include a proximal end coupled to the cannula housing. The cannula housing is configured to fluidly-couple the one or more cannulae to a source of a drug delivery supply for supplying drugs via the supply line to the one or more cannulae.