Surgical cutting instrument
First Claim
1. A surgical cutting instrument for insertion into a surgical trocar comprising an essentially tubular housing shaft (110), an end section (112) that is insertable into the trocar and connected to the housing shaft (110) and equipped with a cutter (114), an operating means (120, 121) for the end section (112) positioned at a control end Of the housing shaft (110), wherein the end section (112) is formed by a plurality of elements (112'"'"', 112" . . . ) that are connected to one another in an articulated fashion and adjustment means for adjusting the end section from a position coaxial with the housing shaft (110) to an extended curved position, wherein the housing shaft has a fluid duct that is provided with at least one outlet that extends radially outward in a region of the end section, such that the outlet is located laterally on an outer side of the end section (12) and, in the curved extended condition of the end section, is located on a rear behind the cutter in a plane of rotation of the end section, such that the fluid duct in the region of the end section can be bent jointly with the cutter, and the fluid duct has a fluid inlet (24) at the control end.
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Accused Products
Abstract
A surgical cutting instrument for introduction into a cutting trocar sleeve possesses an essentially tubular housing shank, which at its distal end able to be introduced into the trocar is provided with an essentially tubular distal section able to be flexed. The distal section possesses at least one cutting means able to be deformed into a working state thereof together with the distal section. At the second, proximal end of the housing shank actuating means are provided with which the cutting means may be moved out of the form as inserted into the working form. The housing shank has a fluid duct, which adjacent to the housing shank distal section is provided with at least one outlet opening. The fluid duct is able to be bent into an arc at the distal section like the cutting means and has a fluid inlet opening at the proximal end thereof.
99 Citations
12 Claims
- 1. A surgical cutting instrument for insertion into a surgical trocar comprising an essentially tubular housing shaft (110), an end section (112) that is insertable into the trocar and connected to the housing shaft (110) and equipped with a cutter (114), an operating means (120, 121) for the end section (112) positioned at a control end Of the housing shaft (110), wherein the end section (112) is formed by a plurality of elements (112'"'"', 112" . . . ) that are connected to one another in an articulated fashion and adjustment means for adjusting the end section from a position coaxial with the housing shaft (110) to an extended curved position, wherein the housing shaft has a fluid duct that is provided with at least one outlet that extends radially outward in a region of the end section, such that the outlet is located laterally on an outer side of the end section (12) and, in the curved extended condition of the end section, is located on a rear behind the cutter in a plane of rotation of the end section, such that the fluid duct in the region of the end section can be bent jointly with the cutter, and the fluid duct has a fluid inlet (24) at the control end.
Specification