| 摘要 |
A surgical instrument includes a forceps unit for being positioned within an anatomical cavity and an inner member having a biopsy tool. The forceps unit includes a housing, an outer tubular member, an intermediate member, and a handle mechanism coupled with at least one of the intermediate and outer tubular members for creating relative movement between the intermediate and outer tubular members. The outer tubular member has a proximal end mounted on the housing and terminates distally at a distal end. The intermediate member has a tubular body disposed telescopically within the outer tubular member, a proximal end mounted in the housing and an integral one-piece distal end defining a pair of opposed jaws resiliently biased apart such that relative movement of the outer tubular member distal end over the jaws causes the jaws to close. The inner member includes a tubular member removably disposed at least partly within the intermediate member and carrying a biopsy tool that can be selectively advanced into the jaws.
|
