Endoscopic reusable surgical device
AssigneeCovidien LP
InventorsEncheng Hu, Xiaolin Sang, Xin Yue
Life of this patent
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Abstract
An endoscopic shaft assembly (200) includes: an elongate outer shaft (222); and an outer housing (212) coupled to a proximal portion (222a) of the elongate outer shaft (222). The outer housing (212) includes: a tubular wall (215) defining a cavity (214); and a shaft plunger (234) disposed within the cavity (214) and configured to move axially within at least a portion of the cavity (214) along a travel path. The shaft plunger (234) includes a collar (236). The collar (236) configured to be separated from the tubular wall (215) along a first travel portion of the travel path and to contact the tubular wall (215) along a second travel portion of the travel path.
Claims19
An endoscopic shaft assembly, comprising:
- an elongate shaft;
- and
- an outer housing coupled to a proximal portion of the elongate outer shaft, the outer housing including:
- a tubular wall defining a cavity;
- and
- a shaft plunger disposed within the cavity and configured to move axially within at least a portion of the cavity along a travel path, the shaft plunger including a collar, wherein the collar is configured to be separated from the tubular wall along a first travel portion of the travel path and to contact the tubular wall along a second travel portion of the travel path.
A surgical device comprising:
- a handle assembly;
- and
- an endoscopic shaft assembly configured to couple to the handle assembly, the endoscopic shaft assembly, including:
- an elongate outer shaft;
- and
- an outer housing coupled to a proximal portion of the elongate outer shaft, the outer housing including:
- a tubular wall defining a cavity;
- a biasing member disposed within the cavity;
- and
- a shaft plunger including a collar and disposed within the cavity, wherein the shaft plunger is configured to move axially within at least a portion of the cavity from a first position to a second position, such that in the first position the collar is separated from the tubular wall and in the second position the collar contacts the tubular wall.
A method for sterilizing a surgical device, the method comprising:
- detaching an endoscopic shaft assembly from a handle assembly, the endoscopic assembly including a tubular wall defining a cavity, a biasing member disposed within the cavity, and a shaft plunger having a collar and disposed within the cavity, wherein the biasing member moves the shaft plunger upon detaching the endoscopic shaft assembly from the handle assembly into a first position in which the collar is separated from the tubular wall thereby creating a passage through the cavity;
- and
- supplying a sterilizing agent into passage.
Dependencies are inferred from the claim text.