JPH09140708A - Intracelom ultrasonic diagnostic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily keep the sanitation of an ultrasonic wave transmitting medium and an ultrasonic contactor inside a protection cap and to remove air bubbles inside the protection cap by providing an opening at a part of a top end protecting member and opening a part of duct line for medium supply, which is communicated into the top end protecting member, near a balloon mounting groove. SOLUTION: Holes 6 for communicating inside and outside are provided at two positions, for example, on a cap 5. Besides, a duct 12 for supply for supplying the ultrasonic wave transmitting medium to the cap 5 and a duct 13 for suction for sucking this medium are provided, and respective opening parts 14 and 15 are provided near a mounting groove 18 of top end constituting part 1. Branching parts 16 and 17 are formed near the respective opening parts 14 and 15 and are communicated respectively through ducts 18 and 19 into the cap 5. The inner diameter of ducts 18 and 19 is made smaller than that of duct 12 for supply and duct 13 for suction, and the opening area of holes 6 is made larger than the inner diameter of both the ducts 12 and 13. Thus, even when the medium is sucked without mounting any balloon, intracelom mucus does not pass through the protection cap and sanitation can be kept. Besides, air bubbles can be removed together with medium supply and suction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intracorporeal ultrasonic diagnostic apparatus in which a balloon can be attached to a tip of an insertion portion having an ultrasonic wave transmitting / receiving section or a tip protecting member covering the ultrasonic wave transmitting / receiving section.

[0002]

2. Description of the Related Art Generally, a mecharadial type intracorporeal ultrasonic diagnostic apparatus, which is one type of intracorporeal ultrasonic diagnostic apparatus, has an ultrasonic probe rotatably provided at the tip of its insertion portion so as to cover the ultrasonic probe. Is equipped with a protective cap,
An ultrasonic transmission medium is filled in the protective cap.
Further, a balloon can be attached to the outside of the tip of the protective cap or the insertion portion, and a conduit for supplying and discharging the liquid into the balloon is provided in the insertion portion.

Bubbles may invade or be generated in the protective cap. In that case, the ultrasonic signal cannot be sufficiently transmitted, which may hinder the observation. Therefore, an ultrasonic diagnostic method is provided in which an opening is provided in the protective cap, the protective cap is covered with a balloon, and the ultrasonic transmission medium is supplied into the protective cap each time it is used, and the balloon is also inflated and deflated by supplying the medium. An apparatus has been proposed (see Japanese Patent Publication No. 63-29544 and Japanese Patent Laid-Open No. 7-136168).

[0004]

As described above, an ultrasonic diagnosis in a body cavity is provided in which an opening is provided in the protective cap so that the medium can be supplied into the protective cap and the balloon can be inflated and deflated by feeding the liquid into the balloon. The device, when the ultrasonic transmission medium is sent into the protective cap by inserting it into the body cavity without attaching the balloon to the insertion portion, the ultrasonic transmission medium flows out into the body cavity through the opening provided in the protective cap,
Since the ultrasonic transmission medium always passes through the protective cap, the inside of the protective cap is filled with the ultrasonic transmission medium. Especially, when the opening area of the protective cap is smaller than the inner diameter of the medium supply pipe, The inside of the protective cap can be completely filled with the ultrasonic transmission medium, and only the overflow portion will flow out into the body cavity. Therefore, it is possible to perform ultrasonic diagnosis while allowing the ultrasonic transmission medium to flow into the body cavity. However, in this state, when suction is applied to the medium suction conduit, mucus or the like present in the body cavity is sucked from the opening of the protective cap through the protective cap to the medium suction conduit, There is a problem that it is not preferable in maintaining the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap.

The present invention has been made in view of the above problems, and it is easy to maintain the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap, and the air bubbles in the protective cap can be removed. An object is to provide an internal ultrasonic diagnostic apparatus.

[0006]

To this end, the intracorporeal ultrasonic diagnostic apparatus according to claim 1 of the present invention is provided with a distal end protection member that covers the distal end of the insertion portion having the ultrasonic transmitting / receiving unit or the ultrasonic transmitting / receiving unit. In an intracorporeal ultrasonic diagnostic apparatus capable of mounting a balloon, an opening is provided in a part of the tip protection member, and a part of a medium supply conduit communicating with the tip protection member is formed into a balloon mounting groove. It is characterized in that it is opened in the vicinity.

According to the intracorporeal ultrasonic diagnostic apparatus of the first aspect of the present invention, when the balloon is not attached to the tip of the insertion portion or the tip protection member, one of the medium supply conduits communicating with the tip protection member is provided. Since the part remains open in the vicinity of the balloon mounting groove, even if the ultrasonic transmission medium is supplied from the medium supply pipe in this state, it will flow into the body cavity, and the ultrasonic transmission medium will enter the protective cap. Cannot be filled. This body cavity ultrasonic diagnostic apparatus is in a state in which the ultrasonic transmission medium is filled in the protective cap to perform ultrasonic diagnosis only when the balloon is attached.

Therefore, according to the intracorporeal ultrasonic diagnostic apparatus of claim 1 of the present invention, since the ultrasonic diagnosis is not actually performed when the balloon is forgotten to be attached, the mucus or the like existing in the intracorporeal cavity is discharged from the opening of the protective cap. It is not sucked into the medium suction pipe through the protective cap, and the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap is maintained. In addition, when actually performing ultrasonic diagnosis with a balloon attached, for example, with the tip of the insertion part facing downward, the bubbles are brought close to the medium supply pipe line and the medium suction pipe line side of the protective cap to supply the medium. Bubbles in the protective cap can be removed by repeating the operation of feeding the ultrasonic transmission medium from the working pipe and sucking the ultrasonic transmission medium from the medium suction pipe.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 (a) to 1 (c) are views showing a configuration of a distal end of an insertion portion of an intracorporeal ultrasonic diagnostic apparatus according to a first embodiment of the present invention, and FIG. 1 (a) shows a state in which a balloon is not attached, FIG. 1 (b) shows a state in which the balloon is attached, and FIG.
(C) shows a balloon. This embodiment provides a mecharadial type intracorporeal ultrasonic diagnostic apparatus, which can easily maintain the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap, and can remove bubbles generated in the protective cap. The purpose is to do.

The mecharadial type intracavity ultrasonic diagnostic apparatus of this embodiment has an ultrasonic wave transmitting / receiving section near the distal end of the insertion section driven by the bending mechanism, and as shown in FIG. 1 (a). A tip forming portion 1 is provided at the tip of the insertion portion. A flexible shaft 3 is rotatably provided in the distal end forming portion 1 via a seal member 2 with respect to the axial direction of the insertion portion, and the distal end of the flexible shaft 3 has a moisture resistant surface. A coated ultrasonic probe 4 is provided. on the other hand,
A protective cap (hereinafter, referred to as a cap) 5 that protects the ultrasonic probe 4 is attached to the distal end portion of the distal end forming unit 1. The cap 5 has a hole (opening) 6 for communicating the inside and outside of the cap. For example, it is provided at two places shown in the figure.

The tip forming portion 1 and the cap 5 are respectively provided with
Mounting grooves 8 and 9 for mounting the balloon 7 are provided, and the band portions 10 and 1 of the balloon 7 shown in FIG.
The balloons 7 are mounted on the outer circumference of the distal end forming portion 1 by fitting 1 into the mounting grooves 8 and 9, respectively. As shown in FIGS. 1 (a) and 1 (b), the tip configuration portion 1 is for sucking the medium supply conduit 12 for supplying the ultrasonic transmission medium into the cap 5 and the ultrasonic transmission medium. The medium suction conduit 13 is provided, and the medium supply conduit 12 and the medium suction conduit 13 are respectively provided with the mounting groove 8 of the tip forming portion 1.
Openings 14 and 15 are provided in the vicinity of. Further, branch portions 16 and 17 are formed in the vicinity of the openings 14 and 15 of the medium supply pipeline 12 and the medium suction pipeline 13, respectively, and the pipes branched by the branch sections 16 and 17 are formed. The passages 18 and 19 communicate with the inside of the cap 5. The inner diameters of the pipes 18 and 19 are smaller than those of the medium supply pipe 12 and the medium suction pipe 13, respectively, and the opening area of the hole 6 of the cap is the same as the medium supply pipe 12 and the medium suction pipe. It is made larger than the inner diameter of the pipe line 13.

Next, the operation of this embodiment will be described. At the time of ultrasonic diagnosis, when the balloon 7 is covered between the cap 5 and the tip forming portion 1, the band portion 10 of the balloon 7 is fitted into the mounting groove 8, so that the openings 14 and 15 are closed. When the ultrasonic transmission medium is sent from the medium supply pipe 12 in this state, the opening 14 of the supply pipe 12 is closed, so that the ultrasonic transmission medium passes from the branch portion 16 through the pipe 18. It flows into the cap 5 and fills the inside of the cap 5. After the ultrasonic transmission medium is filled in the cap 5, when the ultrasonic transmission medium is further fed, the ultrasonic transmission medium flows out of the cap 5 through the hole 6 provided in the cap 5 into the balloon 7. To reach. Thereby, the balloon 7 can be inflated. On the other hand, when suction is applied to the medium suction conduit 13 during ultrasonic diagnosis or at the end of ultrasonic diagnosis, the ultrasonic transmission medium in the balloon 7 will pass through the hole 6 provided in the cap 5 in the cap 5 and the conduit. After passing through 19 and the branching portion 17, the medium is sucked into the medium suction pipe line 13. This allows
The balloon 7 can be deflated.

When the balloon is not attached (when the balloon is removed or when the balloon is not attached), the opening 14 of the medium supply conduit 12 and the hole 6 of the cap 5 are opened to the outside. Therefore, when the ultrasonic transmission medium is sent from the medium supply conduit 12, most of the ultrasonic transmission medium leaks out through the opening 14 (inside the body cavity), and the remaining extremely small amount of ultrasonic transmission medium is generated. Branch 16 to pipe 18
However, the ultrasonic wave transmission medium does not fill the inside of the cap 5 because it flows into the cap 5 through the hole 6 and flows out through the hole 6. The ultrasonic probe 4, which is not filled with the ultrasonic transmission medium and is surrounded by air, cannot transmit / receive ultrasonic waves to / from the body cavity and can obtain an ultrasonic image necessary for ultrasonic observation. I can't. Therefore, when the balloon is not attached, ultrasonic observation cannot be performed, and therefore, the operation of sucking the ultrasonic transmission medium from the medium suction conduit 13 cannot be performed other than an erroneous operation.

Even if the ultrasonic transmission medium is sucked from the medium suction pipe line 13 when the balloon is not attached, the opening area of the opening portion 15 provided in the medium suction pipe line 13 is small. Since it is sufficiently larger than the inner diameter of the pipe line 19, most of the sucked mucus or the like will pass through the opening 15, and the mucus or the like that passes through the hole 6 of the cap 5 and inside the cap 5 will be negligible. Is.

Further, air bubbles may enter or be generated in the cap 5, and in that case, the air bubbles are brought to the pipe lines 18 and 19 side of the cap 5 with the tip of the insertion portion facing downward. Then, by repeating the operation of sending the ultrasonic transmission medium from the medium supply pipe 12 and sucking the ultrasonic transmission medium from the medium suction pipe 13, the bubbles in the cap 5 are removed.

According to this embodiment, the ultrasonic transmission medium can be filled in the cap for ultrasonic observation only when the balloon is attached to the ultrasonic diagnostic apparatus having a hole in the cap. It is possible to prevent forgetting to put it on. Therefore, when the user forgets to attach the balloon, he / she notices it, so that mucus or the like does not enter the protective cap by suction, and the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap can be maintained. Furthermore, since the ultrasonic transmission medium is filled in the cap each time during ultrasonic diagnosis, even if bubbles are generated, it is possible to repeat the liquid feeding from the medium supply pipeline and the suction from the medium suction pipeline. , Can remove air bubbles.

FIG. 2 is a diagram showing the construction of an intracorporeal ultrasonic diagnostic apparatus according to a second embodiment of the present invention. FIG. 2 shows a state in which an endoscope channel and a liquid feeding tube are connected. . The present embodiment aims to provide a liquid feeding tube capable of feeding a liquid to all the conduits of an endoscope.

The intracavitary ultrasonic diagnostic apparatus of this embodiment is constructed as an endoscope, inside which a suction cylinder 21 and an air / water supply cylinder 22 are provided, and the suction cylinder 21 to the insertion portion 23. Side and the connector 24 side communicate with the pipeline 25, and the conduit 26 communicates from the air / water feeding cylinder 22 side toward the insertion portion 23 side and the connector 24 side. Further, inside the endoscope, there is provided a pipe line 27 that does not communicate with each of the cylinders but communicates with the insertion portion 23 side, and a water injection port 28 is provided at the inlet of the pipe line 27.

On the other hand, the liquid feeding tube connected to this endoscope is composed of three liquid feeding tubes 34, 35 and 36, one pipe line 31 and one water supply tube 40. One end of the conduit 31 communicates with the syringe connector 30 connected to the syringe 29, and the other end communicates with the branch stopcock 33 via the check valve 32, and the liquid feeding tube 34 communicates with the branch stopcock 33 on the starting end side. The terminal side communicates with a connector 37 connectable to the suction cylinder 21, the liquid feeding tube 35 has a starting end side communicating with the branch stopcock 33 and a terminal side connectable with the air / water feeding cylinder 22.
The liquid feeding tube 36 has a starting end side communicating with the branch stopcock 33 and a terminal end side communicating with a connector 39 connectable to the water injection port 28. Further, one end of the water supply tube 40 is connected to the check valve 32, and the other end of the water supply tube 40 communicates with the water supply connector 41.

Next, the operation of the present embodiment will be described. At the time of cleaning the endoscope duct, etc., the connectors 37, 38, 39 of the liquid feeding tubes 34, 35, 36 are connected to the suction cylinder 21, the air / water feeding cylinder 22 and the water inlet 28 of the endoscope, respectively. The syringe connector 30 of the pipe line 31 is connected to the syringe 29, and the water supply connector 41 of the water supply tube 40 is submerged in water. By doing so, the fluid flowing from the conduit 31 toward the check valve 32 does not flow toward the water supply tube 40 due to the check valve 32 but only toward the branch stopcock 33. On the contrary, the fluid flowing from the conduit 31 toward the syringe connector 30 does not flow from the direction of the branch stopcock 33 due to the check valve 32, but only from the water absorption tube 40 side. The branch stopcock 33 can selectively flow the fluid flowing in from the check valve 32 to only one of the tubes 34, 35, and 36 in accordance with the switching operation.

In FIG. 2, when the piston of the syringe 29 is pulled, the water sucked from the water absorbing connector 41 submerged in water passes through the water supply tube 40, the check valve 32, the pipe line 31 and the syringe connector 30 and is stored in the syringe 29. Carried to. By pushing the piston of the syringe 29 in this state, the water in the syringe 29 passes through the syringe connector 30, the pipe 31, the check valve 32, and the branch stopcock 33, and then the pipe of any one of the pipes 34, 35, and 36 is piped. It flows to the road.
When the branch stopcock 33 is in communication with the tube 34, water flows through the connector 37 and the suction cylinder 21 to the entire conduit 25. Further, when the branch stopcock 33 communicates with the tube 35, water is supplied to the connector 38 and the air / water supply cylinder 22.
Through the pipe line 26. Furthermore, a branch stopcock 33
Is in communication with the tube 36, water is
9. Flows through the water inlet 28 to the entire pipe 27.

According to this embodiment, by switching the branch stopcock, the liquid can be selectively fed into all the conduits of the endoscope.

FIG. 3 is a diagram showing the structure of an intracorporeal ultrasonic diagnostic apparatus according to the third embodiment of the present invention. FIG. 3 shows a state in which an endoscope channel and a liquid feeding tube are connected. . In the third embodiment, the structure of the liquid feeding tube is changed from that in the second embodiment. The present embodiment aims to provide a liquid feeding tube capable of feeding a liquid to all the conduits of an endoscope.

The portion of the endoscope of the ultrasonic diagnostic apparatus for body cavity according to the present embodiment is the same as that of the second embodiment, and the description thereof will be omitted. The liquid feeding tube connected to this endoscope is composed of three liquid feeding tubes 46, 47, 48, one conduit 43, and one water supply tube 52. Pipeline 43
Has one end communicating with a syringe connector 42 connected to the syringe 29, and the other end communicating with a branch stopcock (a three-way stopcock is used in the present embodiment) 45 through a check valve 44.
The liquid feeding tube 46 has a starting end side communicating with the branch stopcock 45 and a terminal end communicating with a connector 49 connectable to the suction cylinder 21, and a liquid feeding tube 48 branched from the middle of the liquid feeding tube 46 has an air feeding and water feeding cylinder at the terminal end. 22 is connected to the connector 50, and the liquid sending tube 47 is connected to the branch stopcock 45 on the starting end side and to the connector 51 connectable to the water injection port 28 on the ending side. Further, one end of a water supply tube 52 is connected to the check valve 44, and the other end of the water supply tube 52 communicates with a water supply connector 53. Instead of branching the liquid feeding tube 48 from the middle of the liquid feeding tube 46 as described above, the liquid feeding tube 48 may be branched from the middle of the liquid feeding tube 47 as shown in FIG.

Next, the operation of the present embodiment will be described. At the time of cleaning the endoscope duct, etc., the connectors 49, 50, 51 of the liquid feeding tubes 46, 47, 48 are connected to the suction cylinder 21, the air / water feeding cylinder 22 and the water inlet 28 of the endoscope, respectively. Further, the syringe connector 42 of the conduit 43 is connected to the syringe 29, and the water supply connector 53 of the water supply tube 52 is submerged in water. With this arrangement, the check valve 44
Since the structure of the branch stopcock 45 and the structure of the branch stopcock 45 are the same as the check valve 32 and the branch stopcock 33 of the second embodiment, respectively, the branch stopcock 45 causes the fluid flowing from the check valve 44 in response to the switching operation to flow into the tube 46. , 47 and 48 can be selectively supplied.

In FIG. 3, when the piston of the syringe 29 is pulled, the water sucked up from the water-absorbing connector 53 immersed in water passes through the water supply tube 52, the check valve 44, the pipe line 43 and the syringe connector 42, and then the inside of the syringe 29. Carried to. By pushing the piston of the syringe 29 in this state, the water in the syringe 29 flows through the syringe connector 42, the conduit 43, the check valve 44 and the branch stopcock 45 to the conduit 46 or the conduit 47. When the branch stopcock 45 is in communication with the tube 46, water flows through the connector 49 and the suction cylinder 21 to the entire conduit 25, and also through the tube 48 branched from the tube 46 through the connector 51 and the water inlet 28. It flows to 27. When the branch stopcock 45 communicates with the tube 47, water flows through the connector 50 and the air / water supply cylinder 22 to the entire conduit 26.

According to this embodiment, by switching the branch stopcock, the liquid can be selectively sent to all the conduits of the endoscope. In addition, a commercially available three-way stopcock can be used as the branch stopcock, resulting in cost reduction compared to the second embodiment.

The present invention is not limited to the above-mentioned examples, and various changes and modifications can be added. For example, in an intracorporeal ultrasonic diagnostic apparatus in which a balloon can be attached to a distal end protection member that covers the ultrasonic transmission / reception part or an insertion part distal end having an ultrasonic transmission / reception part, an opening is provided in a part of the distal end protection member. With
The intracorporeal ultrasonic diagnostic apparatus may be characterized in that part of the medium supply conduit and the medium suction conduit communicating with the inside of the tip protection member are opened near the balloon mounting groove (Appendix 1). ). By doing so, even if suction is applied to the medium suction conduit when the balloon is forgotten to be attached, most of the mucus and the like in the body cavity is directly sucked from the opening of the medium suction conduit so that the inside of the protective cap is mostly closed. Without passing, the hygiene of the ultrasonic transmission medium and the ultrasonic probe in the protective cap is maintained.

Further, in the intracorporeal ultrasonic diagnostic apparatus according to claim 1, an inner diameter of a portion of the medium supply conduit of the intracorporeal ultrasonic diagnostic apparatus, which is in front of (a nearer to) the opening near the mounting groove, is opened. The opening area of the protective cap may be larger than the inner diameter of the rear (front end side) portion, and may be larger than the inner diameter of the medium supply conduit (Appendix 2).
In that case, only when the balloon is attached, the ultrasonic transmission medium is filled in the protective cap, and the ultrasonic diagnosis can be performed. Therefore, the ultrasonic transmission medium and the ultrasonic probe in the protective cap are further increased. In addition to maintaining the sanitary condition, air bubbles in the protective cap can be easily removed.

In addition, in the intracorporeal ultrasonic diagnostic apparatus according to appendix 1, the medium supply conduit and the media aspirating conduit of the intracorporeal ultrasonic diagnostic apparatus are located in front of the opening near the mounting groove (on the hand side). The inner diameter of the portion may be made larger than the inner diameter of the portion after the opening (on the tip side), and the opening area of the protective cap may be made larger than the inner diameters of the medium supply conduit and the medium suction conduit. (Appendix 3). In that case, only when the balloon is attached, the ultrasonic transmission medium is filled in the protective cap, and the ultrasonic diagnosis can be performed. Therefore, the ultrasonic transmission medium and the ultrasonic probe in the protective cap are further increased. In addition to maintaining the sanitary condition, air bubbles in the protective cap can be easily removed.

[Brief description of the drawings]

1A to 1C are views showing a configuration of a distal end of an insertion portion of an intracorporeal ultrasonic diagnostic apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a body cavity ultrasonic diagnostic apparatus according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of an intracorporeal ultrasonic diagnostic apparatus according to a third embodiment of the present invention.

FIG. 4 is a view showing another configuration of the intracavity ultrasonic diagnostic apparatus of the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tip configuration part 2 Sealing member 3 Flexible shaft 4 Ultrasonic probe 5 Protective cap (cap) 6 Hole (opening) 7 Balloon 8 Mounting groove 9 Mounting groove 10, 11 Band part 12 Medium supply conduit 13 Medium Suction pipe line 14,15 Opening part 16,17 Branch part 18,19 Pipe line 21 Suction cylinder 22 Air supply / water supply cylinder 23 Insert part 24 Connector 25,26,27,31,43 Pipe line 28 Water injection port 29 Syringe 30, 42 Syringe connector 32,44 Check valve 33 Branch stopcock 34,35,36,46,47,48 Tube 37,38,39,49,50,51 Connector 40,52 Water supply tube 45 Branch stopcock (three-way stopcock) 41, 53 Water supply connector

Claims (1)

[Claims] 1. An intracorporeal ultrasonic diagnostic apparatus in which a balloon can be attached to a tip of an insertion section having an ultrasonic wave transmitting / receiving section or a tip protecting member covering the ultrasonic wave transmitting / receiving section, wherein a part of the tip protecting member is provided. An intracorporeal ultrasonic diagnostic apparatus characterized in that an opening is provided and a part of a medium supply conduit communicating with the inside of the tip protection member is opened in the vicinity of a balloon mounting groove.