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Water feeding device for endoscope

a technology of endoscopy and water feeding, which is applied in the field of water feeding devices for endoscopy, can solve the problems of wasting time, affecting the safety of endoscopy, and affecting the safety of endoscopy, and achieves the effect of easy proper injection and high sanitary sta

Inactive Publication Date: 2006-11-30
FUJI PHOTO OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009] The present invention has been implemented in view of the foregoing problem, and has an object to provide a water feeding device for an endoscope in which it is unnecessary to carry out the replacing work (connection replacement) between a dedicated water feeding pipe line and a water feeding pipe line using a treatment instrument insertion channel, so that observation and treatments based on the endoscope can be rapidly performed, and also no residual water flows out after water feeding is stopped.
[0034] According to the endoscope of the eighth or ninth aspect of the invention, the liquid bag or the like can be used as a container which can be used only once (single use) dedicated to the same patient, and a high sanitary state can be secured. Furthermore, drug solution to be added to liquid fed into the object under observation can be easily properly injected, and further all the liquid in the container can be perfectly used with no residual.

Problems solved by technology

It is structurally vain that a water feeding pump portion (water feeding device) for supplying liquid is disposed for each of the dedicated in-endoscope water feeding (water jet) pipe line and the water feeding pipes used while inserted through the treatment instrument insertion channel.
However, there is a problem that it is cumbersome to carry out a replacing work (i.e., connection replacement) between the water jet pipe and each water feeding pipe using the treatment instrument insertion channel, and thus there is a disadvantage that a wasting time must be consumed to carry out the connection replacement work during an observation or treatment work using the endoscope (e.g. see JP-A-2002-177208 and JP-A-2001-321332).
Furthermore, in the related-art endoscope devices, a soft tube such as a silicon tube or the like is used for the water feeding connection pipe for connecting the water jet pipe and the water feeding pump portion, and thus there is a problem that there occurs a phenomenon (so-called creep) that residual water in the tube is fed even after a water feeding switch is stopped.

Method used

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  • Water feeding device for endoscope

Examples

Experimental program
Comparison scheme
Effect test

embodiment 1

[0051]FIGS. 1 and 2 show the construction of a water feeding device for an endoscope according to an embodiment 1-1. As shown in FIG. 1, an endoscope (electronic endoscope) 10 has an insertion portion 10A, an operating portion 10B and a cable portion 10C, and it is connected to a light source device 13 shown in FIG. 1 by a connector 12 of the cable 10C. In the case of the electronic endoscope, the cable 10C is also connected to a processor device. Various kinds of pipe lines are provided in the endoscope 10. A water jet pipe (dedicated water feeding pipe line) 15a is disposed so as to extend from the tip of the insertion portion 10A to the rear end portion of the operating portion 10B. An air-feeding / water-feeding pipe 16a is provided at the tip side to clean an observation window (lens face) of an object optical system equipped to the tip of the insertion portion 10A through a nozzle, and an air-feeding pipe 16b and a water feeing pipe 16c are provided so as to intercommunicate wit...

embodiment 2

[0067] The overall construction of the water feeding device for an endoscope according to the embodiment 2 is same as in the embodiment 1 (See FIG. 1).

[0068]FIG. 9 shows the detailed construction of the water feeding pump portion 30 and the tank 34 on the embodiment 2. As shown in FIG. 1, a power supply switch 44, a connection portion 45 of a foot switch 33, etc. are provided in the main body 31 of the water feeding pump portion (device) 30. In addition, the connection pipe 15d at the tank side is connected to the input port pipe 46 of the pump 32, and a liquid take-out pipe 53 of the tank 34 is connected to the connection pipe 15d through a Luer lock 50. The connection pipe 15c to be connected to the endoscope side is connected to the output port pipe 47 of the pump 32.

[0069] In the embodiment 2, an orifice 55 for setting the maximum water feeding pressure in the pipe is provided to the output port pipe 47 of the pump 32. FIGS. 10A and 10B show the construction of the orifice 55....

embodiment 3

[0077] The overall construction of the water feeding device for an endoscope according to the embodiment 3 is same as in the embodiment 1 (See FIG. 1).

[0078]FIG. 13 shows the detailed constructions of the water feeding pump portion 30, the liquid bag and the tank 34 on the embodiment 3. As shown in FIG. 1, the main body 31 of the water feeding pump portion (device) 30 is equipped with a power supply switch 44, a connection portion 33C of a foot switch 33, a flow rate adjusting finger grip (variable resistor) 245, etc. The connection pipe 15d at the tank side is connected to the input port pipe 46 of the pump 32, and the connection pipe 15c at the endoscope side is connected to the output port pipe 47 of the pump 32. A Luer connection type (male and female screw fixing type) female connector 50 is secured to the tip of the connection pipe 15d, and a male screw portion of the injection needle 52 and the female connector 50 screw together.

[0079] In the embodiment 3, a liquid bag 54 i...

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PUM

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Abstract

A water feeding device for an endoscope, comprises: a first water feeding pipe line connected to an in-endoscope water feeding pipe line that feeds liquid into an object under observation; a second water feeding pipe line that is introduced into the object under observation through a treatment instrument insertion channel of the endoscope and supplies liquid; a water feeding pump portion that supplies liquid stored in a storage portion by a pump; and a pipe line switching section that selectively supplies the liquid stocked in the storage portion to the first and second water feeding pipe lines.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a water feeding device for an endoscope, and particularly to a water feeding device for an endoscope for supplying liquid into an object under observation by using a dedicated water feeding pipeline disposed in the endoscope and each kind of water feeding pipe line used through a treatment instrument insertion channel or a water feeding pipe provided to the treatment instrument. [0003] 2. Description of the Related Art [0004] In the related-art endoscope device, a dedicated water feeding pipe line (so-called water jet pipe) is provided in an endoscope (scope), and cleaning physiological saline or drug solution for medical treatments is supplied to an object under observation (diseased part or the like) by a water feeding pump portion. The water feeding pipe is disposed separately from an air-feeding / water-feeding pipe line for cleaning an observation window of an object optical syste...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E03B11/16
CPCA61B1/015A61M3/0258A61B1/126A61B1/125Y10T137/85978A61M3/022A61M3/0245
Inventor AKIBA, HARUOMACHIYA, MAMORU
Owner FUJI PHOTO OPTICAL CO LTD
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