Patent EP0029556A2 successfully refreshed from Google Patents.
EP0029556A2
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Endoscope system
Assignee: Olympus Corp
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Filing: 1980-11-14
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Granted: —
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Expires: 2000-11-14
Abstract
Abstract n endoscope system embodying this invention comprises an endoscope (2) provided with passage (22, 24, 26) through which air and water are supplied and sucked and pumps (34) for conducting air and water through the corresponding passages. The control section (10) of the endoscope (2) is provided with switches (46, 48, 50) for generating signals to freely preset the flow rates of air and water. Tubes (22, 36, 42) for connecting pumps to the air passages are provided with valves for controlling the flow rates of air and water. The valves are opened by a servo motor driven by a servo motor drive circuit in accordance with the contents of signals issued from the switches.
Inventors
- 👤 Tetsuya Kimura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 23:24
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/012; A61B1/015; A61B1/00064; A61B1/00066; A61B1/00068; A61B1/12
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
An endoscope system comprising an endoscope (2) provided with at least one passage (22, 24, 26) through which a fluid runs and means for adjusting the flow rate of the fluid conducted through the fluid passage (22, 24, 26) characterized in that said flow rate adjusting means comprises signal-generating means (46, 48, 50) provided in the endoscope (2) to produce a signal for presetting the flow rate and fluid supply means (34, 28, 30, 32, 90, 92, 94) which, upon receipt of said signal, causes a fluid to be conducted through the fluid passage at the preset rate.
Claim 2
Dependent Claim
98 words
An endoscope system comprising an endoscope (2) provided with at least one passage (22, 24, 26) through which a fluid runs and means for adjusting the flow rate of the fluid conducted through the fluid passage (22, 24, 26) characterized in that said flow rate adjusting means comprises signal-generating means (46, 48, 50) provided in the endoscope (2) to produce a signal for presetting the flow rate and fluid supply means (34, 28, 30, 32, 90, 92, 94) which, upon receipt of said signal, causes a fluid to be conducted through the fluid passage at the preset rate.
Claim 3
Dependent Claim
55 words
The endoscope system according to claim 1, characterized in that the endoscope (2) comprises an insertion section (8) to be introduced into a coeliac cavity of a human body, and a control section (10) for controlling the operation of the endoscope (2); and the signal-generating means (46, 48, 50) is provided in the control section.
Claim 4
Dependent Claim
100 words
The endoscope system according to claim 1, characterized in that the fluid supply means (34, 28, 30, 32, 90, 92, 94) comprises a fluid tube (22, 36, 42) disposed outside of the endoscope (2) for communication with the fluid passage (22, 24, 26) of the endoscope (2); a valve (70) provided in the tube (22, 24, 26) to control the flow rate of a fluid running through the fluid tube (22, 24, 26); and means (28, 30, 32) for actuating the valve (70) in accordance with the contents of a signal sent forth from the signal-generating means (46, 48, 50).
Claim 5
Dependent Claim
37 words
The endoscope system according to claim 1, characterized in that the signal-generating means (46, 48, 50) is a switch (46) whose internal resistance varies with the magnitude of a force with which said switch (46) is depressed.
Claim 6
Dependent Claim
42 words
The endoscope system according to claim 1, characterized in that the signal-generating means (46, 48, 50) comprises a permanent magnet (74) slidably provided in the endoscope (2); and a magnetic resistor (76) set on a line along which the permanent magnet slides.
Claim 7
Dependent Claim
74 words
The endoscope system according to claim 1, characterized in that the signal-generating means (46, 48, 50) comprises a light guide (84) through which a light is conducted; a light-detecting element (86) set_ opposite to a light-projecting end face of the light guide (84); and a slidable shielding plate (82) disposed between the light guide (84) and light-detecting element (86) and arranged to vary an amount of a light supplied to the light-detecting element (86).
Claim 8
Dependent Claim
78 words
The endoscope system according to claim 3, characterized in that the valve-actuating means (28, 30, 32) comprises a servo motor (64) for operating a valve (70); and a servo motor drive circuit (62) for supplying the servo motor (64) with a sufficient amount of power to allow for the rotation of the servo motor (64) in a prescribed number of rotations corresponding to the contents of a flow rate-presetting signal sent forth from the signal-generating means (46, 48,.50).
Claim 9
Dependent Claim
68 words
The endoscope system according to claim 3, characterized in that the valve-actuating means (28, 30, 32) comprises a permanent magnet piece (81) mounted on the valve (70), a magnetic coil (80) for applying a magnetic force to the valve (70) for its actuation; and a magnetic coil-energizing circuit (76) for supplying the magnetic coil (80) with electric power in accordance with the contents of the flow rate-presetting signal.
Claim 10
Dependent Claim
87 words
The endoscope system according to claim 1, characterized in that the fluid supply means (34, 28, 30, 32, 90, 92, 94) comprises a fluid tube (22, 36, 42) provided outside of the endoscope (2) for communication with the fluid passage (22, 24, 26) of the endoscope (2); a pump (90, 92, 94) coupled to the fluid tube (22, 36, 42) through which a fluid runs; and means for rotating the pump (90, 92, 94) a number of times corresponding to the contents of the flow rate-presetting signal.
Claim 11
Dependent Claim
56 words
The endoscope system according to claim 1, characterized in that the endoscope (2) comprises an air passage (22) through which air is supplied; a fluid passage (28) through which a fluid is supplied; and a suction passage (26) through which air or a fluid or both are sucked from a coeliac cavity of a human body.
Claim 12
Dependent Claim
43 words
The endoscope system according to claim 10, characterized in that the water passage (24) and the passage (26) for sucking air and water are coupled to the means (28, 30, 32) for supplying air and water through air and water tanks (38, 40).
References Cited (Backward Citations)
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