JPS6077729A - Valve and conduit apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is characterized by 1. -Regarding a help/conduit, in detail, it relates to a/-lube/conduit device effective for veterinary or medical instruments such as endoscopes or bronchoscopes.

The invention is particularly useful in devices of the type described above, where the conduit device is connected to a continuous vacuum suction, ie, a pump that continuously suctions the device.

Prior Art and Problems Typical prior art that is subject to improvement in the present invention is as follows:
U.S. Patent Nos. 4,198,958 and 3.958
, No. 577 (both transferred to Olympus Optical Co., Ltd.)
) is disclosed.

In the prior art unit disclosed in U.S. Pat. No. 4,198,958, the suction conduit 36 communicates with the cylindrical member 14 such that suction pressure is passed to the atmosphere through openings 46 and 47. , these two units direct all suction pressure to the distal end of the endoscope or bypass all suction pressure to the atmosphere.

With these conventional techniques, it is difficult to introduce, cut, or adjust suction pressure to the distal end of a medical instrument without interrupting continuous suction when performing ff11 for diagnosis. Furthermore, it is not easy to supply fluid to the distal end of the device using a syringe or the like while continuing suction or temporarily interrupting the suction.

SUMMARY OF THE INVENTION An uninvented object of the invention is to provide new valve and conduit devices and methods useful in veterinary and medical instruments such as bronchoscopes.

Another object of the present invention is to provide a four-tube and valve device that allows the user to choose to send all or part of the suction pressure to the distal end of a medical device without interrupting continuous suction. .

Yet another object of the present invention is to provide a movable conduit that operates as a lubricant to allow fluid to be introduced by a syringe or the like while bypassing all suction pressure to the atmosphere.

Still another object of the present invention is to provide a method for sending all or part of the suction pressure to the plurality of medical devices j.

Means for Accomplishing the Problem A valve conduit device useful under the above circumstances includes at least one conduit connecting to a vacuum source for full use of the device, a second conduit constituting an examination shaft or channel, and a suction pressure source. a first wave comprising a plurality of fluid passages within the device for bypassing and directing all or a portion of the suction pressure from the device to the atmosphere, and an orifice forming a first bypass for directing all or a portion of the suction pressure to the atmosphere; a second fluid path including a second orifice constituting a second bypass that directs a portion of the suction pressure to the atmosphere and a portion of the suction pressure to the device;
The second passage includes a third conduit terminating at one end in the second orifice and at the other end in a sealing means;
The conduit is in air-tight connection with the shaft from a first position where the second orifice is open to the atmosphere, with the conduit sealing means being in air-tight connection with the shaft and the second orifice being open to the atmosphere while continuously drawing atmospheric air through the first orifice. It can be configured to be movable to a second position closed to a vacuum source.

A method incorporating features of the invention includes providing a first fluid path that directs the total suction pressure to the atmosphere, and providing a second body path 21i having a greater fluid flow resistance than the first fluid path, thereby increasing the suction pressure of the atmosphere. and closing the first fluid path so that a portion of the suction pressure is available within the medical device.

Further features and advantages of the invention will be more clearly disclosed in the following detailed description taken in conjunction with the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference is now made to the accompanying drawings, and in particular to figures 1, IA, 2 and 2A. three! ! The number 10 designates the part of the /\Using no.\/i-le part of the device which supports the sleeve 11, i.e. connects it airtightly with the seven-piece hole 12 which screws into the camp 13.

The sleeve 11 is connected to a flexible examination shaft 14i having a pore 16 which provides an iopsaw forceps and a conduit for the passage of fluids and can be attached to other instruments as is known in the art.

The cap 13 carries a movable hollow v17 and this tube 17
terminates at one end in sealing means 18 and at the other end in orifice 19.

This tube 17 is either held in a first position (1) by means of a coil spring 21 or in contact with the interior of the sleeve 11 by sealing means 18 as shown at 22 and for purposes which will become apparent later. The cap 1 can be moved to the left side in FIG. 1 against the pressure t of the spring 21 to connect.
3 also includes a pore 23 and a nimble 24.

According to the invention, the pore 23 is connected to a first bypass connecting a suction source to the atmosphere, the orifice 19 of the hollow tube 17 is connected to a second bypass connecting to the atmosphere, and the nipple 24 is connected to a vacuum source. The pore 16 of the diagnostic shirt 14 constitutes a second conduit, and the hollow tube 17 constitutes a third conduit.

When the device is in the state shown in Figure 1, the nipple 24
This draws atmospheric air through the pore 23 and the first bypass as indicated by the arrows in FIGS. 1 and 1A.

The first bypass is from the pore 23 to the spring housing 2.
The annular portion 26 surrounding the nipple 76 is connected to the nipple 24 .

As shown in Figures 2IA and 2A, when the pore 23 is occluded by the operator's finger F, the second bypass is actuated, which passes through the orifice 19, the hollow tube 17, then the annulus 28, and the nipple. Connect the atmosphere to the suction source via.

The second bypass has a higher fluid flow capacity than the first bypass;
Since the suction source is designed to have a smaller resistance to flow, i.e., a larger resistance to flow, the suction source will draw in the atmosphere from the FXR (as indicated by the arrows in Figures 2 and 2A).
Aspirate a portion of the bore of the examination shaft.

Figures m 31A and 3A show a full suction path created by blocking both the first and second bypass by placing a finger over the opening communicating with the bore 23 and the orifice 19 of the hollow tube 17. In this arrangement, the examination shaft 14
Bore 16 is fully suctioned.

4 and 4A show the syringe S inserted into the camp 13 in a known manner. This syringe presses the hollow tube 17 against the coil spring 21 and presses the O-ring 29.
A sealing means 18 defining a syringe is in fluid communication with the bore 16 to allow fluid to be easily introduced or removed by manipulating the plunger of the syringe.

In the arrangement of FIG. 4, the first bypass is activated and remains in continuous atmospheric suction.

5 and 5A show the biopsy unit, 1-B, inserted into the hollow tube 17, where the internal O-ring 31
seals the periphery of the unit 13 and the inside of the hollow tube 17. In this arrangement, atmospheric air is continuously drawn in as shown in the 5th +N schematic diagram.

In FIGS. 61 and 6A, the first eight passes are shown in a closed state, and the shaft 14 is suctioned through the annular portion 32 around the biopsy unit B.

The present invention therefore discloses a conduit device and method of operation for applying a continuous suction pressure to a medical device to partially or completely bypass the suction pressure, the device providing a continuous suction 31
It can be easily adapted to a syringe and/or a high-observation unit without interrupting the system, and the above functions can be realized with a simple configuration.

From the foregoing, it will be understood that various modifications may be made to the basic principles of the invention without departing from the spirit and scope of the invention.

[Brief explanation of the drawing]

FIG. 1 shows a longitudinal section [I
Figure 11 and Figure 1A are schematic diagrams of the first bypass that sucks the atmosphere, and Figure 2 is a cross section in the direction of the lbJ technique showing the first bypass closed to the atmosphere and the second bypass open to the atmosphere. Figure 2A is a schematic diagram showing a state in which the shaft of the device is partially sucked and atmospheric air is partially sucked, Figure 3 is a sectional view showing the closed first and second / A schematic diagram showing the shaft of the device fully suctioned; Figure 4 is a cross-sectional view showing the syringe being inserted into the receptacle; Figure 4A is a diagram showing the fluid flowing into the jabutment and the suction volume being passed through to the atmosphere; The schematic diagram shown in FIG. 5 shows the Al1 inserted into the device.
1 Longitudinal cross section M of a long medical probe or forceps,
Figure 5A is a corresponding schematic diagram showing full aspiration of the atmosphere through the first bypass, and Figure 6 is a diagram similar to Figure 5A, with the first bypass closed and the biopsy unit or forceps.
Fig. 6A is a corresponding schematic diagram showing the state of full suction of the shaft around the outside of r.
...Camp, 14...Inspection shaft 16.
...Bore, 17...Hollow tube, 18...
... Seal L stage, 19 ... Orifice, 23
...Boa, 24...Ninful. Applicant: Warner Lan/<-Totechnology, Inc. Agent: Asami Kato

Claims (1)

[Scope of Claims] (1) Effective/helpful for veterinary or medical instruments such as bronchoscopes, ■ So-q tube device, at least one conduit permanently connected to a vacuum source for continuous suction from the device and a plurality of fluid channels provided in the device that bypass the suction pressure and direct all or part of this suction pressure from the device to the atmosphere, and a first bypass that directs the entire suction pressure away from the atmosphere. A first wave body path and a second wave path that directs a portion of the suction pressure toward the atmosphere and a second path that directs a portion of the suction pressure toward the device.
A device consisting of a fluid path. [2] A valve and conduit holder useful for veterinary and medical instruments such as bronchoscopes, which includes at least one conduit permanently connected to a vacuum source that provides continuous suction from the device; a first bypass that directs the entire suction pressure to the atmosphere through an orifice; a first EL body path including an orifice that directs a portion of the suction pressure to the atmosphere through the second orifice and a second fluid path including a second orifice constituting a second bypass that directs a portion of the suction pressure to the device; and is operative to switch the suction pressure from one bypass to another when an orifice provided in each of the bypasses is occluded. (3) A bypass/conduit device useful for veterinary and medical instruments such as bronchoscopes, comprising at least one four-tube permanently connected to a vacuum source for continuous suction from the device and an examination shaft. a second conduit for passing suction pressure and directing all or a portion of the suction pressure from the device to the atmosphere; 1j comprising an orifice constituting a first bypass directed to
Xt body passage, and a second fluid passage including a second orifice constituting a second bypass which directs a portion of the suction pressure to the atmosphere through the second orifice and directs a portion of the suction pressure to the device; and a device operable to switch full suction pressure to the examination shaft by occluding a second orifice. (4) the second fluid passage includes a third conduit 19 terminating at one end in said second orifice and at the other end in a sealing means; said conduit sealing means fluid-tightly connects with said shaft from a first open position to a second position where said $2 orifice is closed to said vacuum source while continuously drawing atmospheric air through said first bypass. 4. A device according to claim 3, which is movable. (5) The movable conduit is always held in place by spring means.
5. The device of claim 4, wherein the device is locked in the first position. 6. The apparatus of claim 4, wherein the second orifice is in liquid-tight connection with a fluid pump such that the third conduit in the second position is operable to introduce fluid into the shaft. (7) The apparatus of claim 4, wherein the sealing means on the 34th tube forms an O-ring on the outer diameter of the third conduit. (8) sealing means on the third conduit are operative to establish a liquid-tight connection with a tubular element supported within the third conduit and projecting into the shaft when the third conduit is in the second position; 5. The device of claim 4 including an internal seal. 9. The apparatus of claim 8, wherein the internal seal is an O-ring received in an annular groove formed inside the third conduit. 5. The device of claim 4, wherein a fourth conduit is housed within the third conduit, and/or a heopsy unit can be easily introduced into the shaft through the second orifice. (11) The device according to claim 10, wherein sealing means is provided between the outer surface of the fourth conduit and the inner surface of the third conduit to provide a liquid-tight connection of the inner conduit. (12) A method for performing full suction, one partial suction, or no suction without interrupting continuous suction in a valve device that is effective for medical instruments such as endoscopes and bronchoscopes that are connected to a pump that performs continuous suction. , a first fluid path is provided that directs the entire suction pressure to the atmosphere, a second fluid path is provided that has a larger fluid flow resistance than the first fluid path, and the first fluid path is closed, thereby Fj: Throttle or reduce the suction pressure,
A method consisting of utilizing a section of suction pressure within a medical device. (13) A second valve that is effective in directing the entire suction pressure toward medical instruments.
13. The method of claim 12, including closing the channel.