Laparoscopic Trocar with Ventriculoperitoneal Shunt Entry Port

摘要

An example laparoscopic trocar assembly can be used for insertion of a ventriculoperitoneal (“VP”) shunt into an abdomen and comprises an optical system a trocar sleeve to allow a surgeon to see abdominal tissue being punctured and see into an abdominal cavity. An example trocar assembly comprises an entry port in the trocar's side and a stylet to insert a VP shunt tube into an abdomen. An example trocar assembly comprises a transparent dissecting obturator with a sharp edge to puncture an abdominal wall and an optical system or camera to allow a surgeon to see inside of an abdominal cavity to avoid injury to blood vessels and internal organs during surgery. An example trocar comprises a side channel through which a VP shunt tube can be inserted into an abdominal cavity at the same point of insertion as the trocar.

主权项

1. A trocar for penetrating a patient's abdomen, comprising:
a tubular outer trocar sleeve 1 having a front end, a back end, and a hollow interior; and a tubular laparoscopic trocar 2 having a front end, a back end, an exterior surface, and a hollow interior; wherein said trocar sleeve and said laparoscopic trocar are shaped to be mated together with said laparoscopic trocar 2 inserted into said trocar sleeve's hollow interior 1 from said trocar sleeve's back end; wherein said trocar sleeve 1 comprises biologically compatible inflexible material; wherein said trocar sleeve 1 comprises a split side channel 7 extending along said trocar sleeve's exterior surface approximately from said trocar sleeve's back end approximately to said trocar sleeve's front end; wherein said side split channel provides a passageway for a stylet and provides an abdominal cavity entry path for inserting a VP shunt tube; wherein said trocar's front end comprises a sharp dissecting end made of transparent material such as glass or plastic and wherein said sharp dissecting end is shaped to form a light transmitting and imaging element; and wherein at said trocar's back end, said trocar's hollow interior comprises a camera light source port through which an optical system 4 can enter.