Abstract: A surgical access device is disclosed that includes an access port having an elongated body with opposed proximal and distal end portions and defining a longitudinal axis, the body having a central lumen extending there through and having a resilient bulb portion formed between the proximal and distal end portions thereof, wherein the resilient bulb portion is adapted and configured to transition between a first condition in which the bulb portion has a first diameter and a first length and a second condition in which the bulb portion has a second diameter that is less than the first diameter and a second length that is greater than the first length, and wherein a telescoping guide tube assembly is disposed within the central lumen of the access port body for accommodating an elongated insertion device, wherein the guide tube assembly is adapted and configured to transition between a first length corresponding to the first condition of the bulb portion and a second length corresponding to the second condition

Abstract: A trocar assembly for use in surgery in a patient, comprising an elongated outer tubular member having a first or proximal end and a second or distal end. The proximal end has a housing enclosing a fluid pressure chamber therein. The distal end of the outer tubular member has a gaseous fluid discharge arrangement therethrough, through which a medical instrument is disposed for surgical manipulation of the patient.

Abstract: A cannula assembly for the maintenance of an operative pneumoperitoneum in a patient comprising an elongated cannula having a proximal end and a distal end. A removable valve is securely arranged in the proximal end of the cannula to provide a seal and minimize the escape of gas introduced into the patient's pneumoperitoneum when an operative instrument is passed therethrough.

Abstract: A trocar assembly for use in surgery in a patient, comprising an elongated outer tubular member having a first or proximal end and a second or distal end. The proximal end has a housing enclosing a fluid pressure chamber therein. The distal end of the outer tubular member has a gaseous fluid discharge arrangement therethrough, through which a medical instrument is disposed for surgical manipulation of the patient.

Abstract: A trocar assembly for providing a pressurized insufflation fluid into a patient cavity and for providing sealable access to the patient cavity by a surgical instrument. The assembly comprises an inner tubular member having a proximal end and a distal end. An outer tubular member is disposed about the inner tubular member, the outer tubular member having a proximal end and a distal end. The distal end of the inner tubular member and the distal end of the outer tubular member define a trocar seal nozzle arranged therebetween.