초록 ▼

A peritoneal catheter comprises a flexible catheter tube carrying porous cuff means to facilitate permanent securance of the catheter to the abdominal wall. The catheter tube defines, in its natural, unstressed condition, a bent segment adjacent the porous cuff means. This permits the catheter to be

A peritoneal catheter comprises a flexible catheter tube carrying porous cuff means to facilitate permanent securance of the catheter to the abdominal wall. The catheter tube defines, in its natural, unstressed condition, a bent segment adjacent the porous cuff means. This permits the catheter to be mounted in a tunnel formed through the abdominal wall in relatively unstressed configuration, with both ends pointing downwardly toward the feet of the patient. In one embodiment, the catheter includes a flange extending circumferentially outwardly of the catheter tube adjacent to the porous cuff means. The flange extends at a nonperpendicular angle relative to the axis of the catheter tube, and the slope of the flange extends transverse the direction of the bent segment. The angled flange, when sutured to the posterior rectus sheath, maintains the catheter tube in the desired tunnel direction within the abdominal wall, with the distal end of the catheter tube pointed properly downwardly toward the pelvic cavity.

대표청구항 ▼

A peritoneal catheter which comprises a flexible catheter tube having a proximal end portion which, in use, projects outwardly from the abdominal cavity of a patient and a distal end portion which, in use, projects inwardly into the peritoneal cavity of the patient, the improvement comprising: said

A peritoneal catheter which comprises a flexible catheter tube having a proximal end portion which, in use, projects outwardly from the abdominal cavity of a patient and a distal end portion which, in use, projects inwardly into the peritoneal cavity of the patient, the improvement comprising: said catheter tube defining in its natural, unstressed condition, a bent segment between the proximal end portion and the distal end portion, said bent segment, in use, extending through the subcutaneous tissue and rectus muscle of the abdominal wall, through the posterior rectus sheath and into the peritoneal cavity. and further including a flange circumferentially surrounding said catheter tube, said flange extending at a nonperpendicular angle relative to the axis of said catheter tube and, in use, secured against the posterior rectus sheath of the patient, the slope of said flange extending in a direction transverse the direction of said bent segment to maintain the distal end portion pointed in a caudal direction within the peritoneal cavity of the patient while the proximal end projects, when viewed by an on-looker, downwardly and at an angle relative to the midline of the patient.