Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
156 words
A medical device comprising: an outer cylinder; an outer cylinder hub which has a hollow portion communicating with the interior of said outer cylinder and fixed to a proximal portion of said outer cylinder; an inner cylinder which can be detachably inserted into said outer cylinder through said hollow portion of said outer cylinder hub; an inner cylinder hub which has a hollow portion communicating with the interior of said inner cylinder, can be connected to said outer cylinder hub, and is fixed to a proximal portion of said inner cylinder; means, arranged between said outer and inner cylinder hubs, for preventing relative axial movement of said outer and inner cylinder hubs when said inner cylinder is inserted into said outer cylinder and said inner cylinder hub is connected to said outer cylinder hub; and means, arranged between said outer and inner cylinder hubs, for preventing relative circumferential rotation of said outer and inner cylinder hubs.
Claim 2
Dependent Claim
156 words
A medical device comprising: an outer cylinder; an outer cylinder hub which has a hollow portion communicating with the interior of said outer cylinder and fixed to a proximal portion of said outer cylinder; an inner cylinder which can be detachably inserted into said outer cylinder through said hollow portion of said outer cylinder hub; an inner cylinder hub which has a hollow portion communicating with the interior of said inner cylinder, can be connected to said outer cylinder hub, and is fixed to a proximal portion of said inner cylinder; means, arranged between said outer and inner cylinder hubs, for preventing relative axial movement of said outer and inner cylinder hubs when said inner cylinder is inserted into said outer cylinder and said inner cylinder hub is connected to said outer cylinder hub; and means, arranged between said outer and inner cylinder hubs, for preventing relative circumferential rotation of said outer and inner cylinder hubs.
Claim 3
Dependent Claim
31 words
A medical device according to claim 1, characterized in that said means for preventing circumferential rotation comprises a recess and a projection formed in said outer and inner cylinder hubs, respectively.
Claim 4
Dependent Claim
44 words
A medical device according to claim 1, characterized in that said means for preventing circumferential rotation comprises a female polygonal prism defining said hollow portion of said outer cylinder hub, and a male polygonal prism of said inner cylinder hub to be fitted therewith.
Claim 5
Dependent Claim
22 words
A medical device according to claim 3, characterized in that said female polygonal prism and said male polygonal prism comprise hexagonal prisms.
Claim 6
Dependent Claim
47 words
A medical device according to claim 1, characterized in that said means for preventing relative axial movement comprises a female taper fitting portion defining an inner wall of said outer cylinder hub, and a male taper fitting portion defining an outer wall of said inner cylinder hub.
Claim 7
Dependent Claim
27 words
A medical device according to claim 2, characterized in that said means for preventing axial movement comprises ribs formed on said outer and inner cylinder hubs, respectively.