| CPC A61B 1/0055 (2013.01) [A61B 1/0052 (2013.01); A61B 1/015 (2013.01); A61B 1/0615 (2013.01); A61B 1/126 (2013.01); A61B 1/00096 (2013.01); A61B 1/00114 (2013.01)] | 11 Claims |
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1. An endoscope (100) comprising:
an insertion tube device (2) including
an elastic support unit (3) that includes a distal disk (31), a proximal disk (33), an intermediate disk (32) disposed between said distal disk (31) and said proximal disk (33), a first spring (34) being deflectable and coaxially connected to said distal disk (31) and said intermediate disk (32), and a second spring (35) being deflectable and coaxially connected to said intermediate disk (32) and said proximal disk (33), said distal disk (31), said first spring (34), said intermediate disk (32), said second spring (35), and said proximal disk (33) being arranged coaxially with each other when said first and second springs (34, 35) are not deflected, said distal disk (31) having front and rear surfaces (311, 312), said rear surface (311) of said distal disk (31) facing toward said first spring (34),
a lens unit (4) that includes a lens seat (41) mounted on said front surface (311) of said distal disk (31), and a first lens module (42) including a lens mounted on said lens seat (41) for capturing images, and
a tubular sleeve unit (7) including a sleeve that is sleeved on said lens seat (41) and said elastic support unit (3); and
a control device (8) including a grip (81) that is connected to said proximal disk (33) of said elastic support unit (3), an angulation control (85) that is installed on said grip (81) and that is connected to said insertion tube device (2), and a signal wire module (86) including a wire that is mounted on said grip (81) and that is electrically connected to said first lens module (42) for signal and power transmission, said angulation control (85) being operable to move said distal disk (31) relative to said intermediate disk (32) and to deflect said first spring (34), thereby controlling deflection of said distal disk (31) relative to said intermediate disk (32),
wherein said sleeve of said tubular sleeve unit (7) includes a first tube (71) sleeved on said distal disk (31) and said lens seat (41), a second tube (72) connected to said first tube (71) and sleeved on said distal disk (31) and said intermediate disk (32), and a third tube (73) connected to said second tube (72) and sleeved on said intermediate disk (32) and said proximal disk (33), and wherein said second tube (72) has a spiral groove (720) formed on an inner or outer surface thereof for facilitating bending thereof.
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