WO2005065548A1

WO2005065548A1 - Water bag for ultrasonic probe, used in ultrasonic diagnosis device

Info

Publication number: WO2005065548A1
Application number: PCT/JP2005/000016
Authority: WO
Inventors: Yoshihiko Habu; Yoshio Ota; Hiroe Funaki
Original assignee: Ishikawa Seisakusho, Ltd.
Priority date: 2004-01-09
Filing date: 2005-01-05
Publication date: 2005-07-21
Also published as: JP3690525B2; JP2005192890A; CN1905838A; CN100525715C

Abstract

A receiving bag of a water bag device, used in an ultrasonic probe, is made of thin rubber, and water or aqueous solution is received in the bag. When the bag is stored for a long period, the water or aqueous solution received vaporizes (to become converted into vapor), and this causes the volume of the bag to reduce, or cause the bag to be deflated. A through hole is provided in an outer peripheral portion of a frame body (cassette), an annular portion of an expandable receiving bag is made in a recessed shape, an annular projection portion is provided on an outer peripheral surface of the recessed shape, and a through hole is provided in an outer peripheral portion of a circular tray-shaped packing. The centers of the hole in the outer peripheral portion of the frame body and the hole in the outer peripheral portion of the circular tray-shaped packing are coaxially aligned in a line so that a hollow tube can penetrate through the holes.

Description

Specification

Water bag device for ultrasonic probe in ultrasonic diagnostic equipment

Technical field

The present invention relates to a water bag device for an ultrasonic probe used for a device for diagnosing osteoporosis using ultrasonic waves.

Background art

[0002] The applicant of the present application is a patentee of Patent No. 3271648. This invention removes and attaches a water-filled storage bag to the probe head of the ultrasound system to minimize the possibility of hospital infection by resistant Staphylococcus aureus (MRSA). When diagnosing osteoporosis by arranging it freely, the water bag device, which is in direct contact with the patient's body, is used once and then discarded and replaced with a new water bag device for each patient.

[0003] In the water bag device for an ultrasonic probe used in this device, as shown in Figs. 7 to 9, a storage bag 12 loaded with water or an aqueous solution 11 has a laterally projecting portion. After being fixed to the frame (cassette) 13, the frame (cassette) 13 is attached to the head of the ultrasonic probe 14.

The storage bag 12 was detachably attached to the machine frame 15 so that the storage bag 12 was in close contact with the outer peripheral surface 14a.

Patent Document 1: Japanese Patent No. 3271648

Disclosure of the invention

Problems to be solved by the invention

[0004] However, since the storage bag 12 containing the water or the aqueous solution 11 is made of thin rubber, if it is stored for a long time, store it! When the water or aqueous solution 11 evaporates (evaporates) into the atmosphere, the volume of the storage bag decreases, causing so-called squeezing, resulting in insufficient adhesion to the subject's measurement site or during the manufacturing process. In some cases, ultrasonic waves could not be propagated due to the generation of bubbles due to mixed air bubbles or dissolved gases in the aqueous solution, and the measured values could not only be inaccurate, but could not be measured. Therefore, there has been a demand for a type of water bag device for an ultrasonic probe that can release gas from the storage bag during use. There is also a difference between the smaller feet of children, young people and women and the larger feet of adult male sportsmen. Therefore, the former requires a storage bag that can be filled with a sufficient amount of water or aqueous solution to make up for the insufficient volume, and the latter requires a storage bag with a configuration that can extract too much water or solution. o

Means for solving the problem

[0005] In view of the above, the present invention is intended to solve the above-mentioned problem, and the apparatus according to claim 1 comprises a frame (cassette), and water and an aqueous solution fixed to the frame so as to have a projecting portion. A water bag device for an ultrasonic probe in an ultrasonic diagnostic apparatus, comprising: a loaded elastic bag, and a basin-shaped packing having an outer shape slightly larger than an inner diameter of an annular portion of the storage bag. (Cassette) A hole is formed in the outer peripheral portion, the annular portion of the retractable storage bag is formed in a concave shape, a convex portion is provided on the outer peripheral surface of the concave shape, and the outer peripheral portion of the round tray-shaped packing is provided. A hole in the outer peripheral portion of the frame body and a hole in the outer peripheral portion of the round tray-shaped packing are fitted into concentric straight lines so that the hollow tube can pass therethrough. Water bag for ultrasonic probe in ultrasonic diagnostic equipment Device

[0006] According to the present invention, it is possible to remove bubbles that obstruct the transmission of ultrasonic waves in the probe after manufacture with a micro hollow tube, and when stored for a long period of time, contain stored water or aqueous solution. Even if the airbag evaporates (evaporates) into the atmosphere and the volume of the storage bag decreases, so-called deflation occurs, use an ultra-fine hollow tube such as an injection needle! It becomes possible to fill the aqueous solution. If the feet are small for children, young people, and women, use water or an aqueous solution to fill them with an ultra-fine hollow tube. It can be pulled out using a tube and can accommodate feet of any size.

[0007] In the water bag device for an ultrasonic probe according to claim 2 of the present invention, the film thickness of the hemispherical portion of the expandable and retractable storage bag according to claim 1 is directed to the tip where the maximum diameter is the largest and the smallest diameter. This is a water bag device for an ultrasonic probe in an ultrasonic diagnostic apparatus, characterized in that the water bag device is thinner.

[0008] According to the present invention, breakage is most likely to occur during use! / It is possible to prevent breakage of the hemispherical portion having the largest diameter. In addition, it is soft to the tip of the hemisphere, The degree of adhesion increases, and as a result, the acoustic impedance decreases, which enables high-sensitivity measurement and improves measurement accuracy.

The invention's effect

[0009] According to the present invention, it is possible to remove bubbles that obstruct the transmission of ultrasonic waves in the probe after manufacture with a micro hollow tube, and when stored for a long period of time, contain stored water or aqueous solution. Even if the storage bag volume is reduced by evaporation (evaporation) into the atmosphere, so-called dents may occur, use an ultra-fine hollow tube such as an injection needle! It becomes possible to fill the solution. If the feet are small for children, young people and women, use water or a solution filled with ultra-fine hollow tubes. It can be pulled out using a tube and can accommodate feet of any size. Further, according to the invention described in claim 2, it is possible to prevent the hemispherical portion from being broken most easily during use, thereby preventing the hemispherical portion from breaking at its maximum diameter. As a result, the acoustic impedance decreases, and high-sensitivity measurement becomes possible, thereby improving measurement accuracy.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a water bag device for an ultrasonic probe in an ultrasonic diagnostic apparatus according to the present invention will be described with reference to the drawings.

[0011] More specifically, based on the drawings, as shown in Figs. 1 to 6, a water bag device 1 for an ultrasonic probe includes a storage bag 2, a frame 3, and a round tray-shaped packing 4. As shown in FIG. 3, the storage bag 2 according to claim 2 has a hemisphere 2d which is gradually thinned as the thickness of the largest diameter portion 2f becomes the thickest smallest diameter portion 2g, and the other 2e portion. Is open. The cross section of the annular portion 2a has a concave shape, and a convex portion 2b is annularly provided on the outer peripheral portion. The outer diameter of the convex portion 2b is made slightly larger than the inner diameter of the cylindrical body 3a, and the outer diameter of the cylinder 4b is made slightly larger than the inner diameter 2c of the annular portion 2a. The material of the storage bag 2 is silicon rubber, and when assembled, the projection 2b is pressed against the inner diameter of the cylindrical body 3a, and the outer diameter of the cylinder 4b is pressed against the inner diameter 2c. These pressure contacts prevent the water and the aqueous solution 5 from leaking to the outside.

[0012] Further, as described above, since the material is silicon rubber, it is necessary to insert and remove an ultrafine hollow tube such as an injection needle. Withstands the hole formed at the time of insertion of the needle and seals it with its flexibility and elasticity after removing the needle, thereby preventing leakage of water and the aqueous solution 5. Of course, the material is not limited to silicon rubber, but may be a rubber belonging to another classification as long as it has flexibility and elasticity.

As shown in FIG. 4, the frame 3 has a flange shape in which a flange is provided on the outer edge of the cylindrical body 3a, and is made of plastic. The cylindrical body 3a is provided with a hole 3b through which an ultrafine hollow tube such as an injection needle penetrates. As shown in FIG. 5, the round tray packing 4 is formed by molding a silicone rubber film 4a, a nylon resin cylinder 4b, and a hole 4c filled with silicone rubber. Reference numeral 4c denotes a hole through which a micro hollow tube such as an injection needle penetrates. By filling this hole 4c with silicone rubber, the same sealing effect as in the case of thickening the silicone rubber is produced, and leakage of water and aqueous solution 5 after inserting and removing a micro hollow tube such as an injection needle is prevented. The effect is enhanced.

Further, as shown in FIG. 3, by aligning the positions of the convex portion 2b and the hole 3b, an extremely fine hollow tube such as an injection needle penetrates the convex portion 2b at the time of insertion. The convex portion 2b is deformed by pressing so as to match the inner diameter of the cylindrical body 3a when assembled, but this pressing prevents the water and the aqueous solution 5 from leaking to the outside. Further, after the removal of the ultrafine hollow tube such as an injection needle, the deformed pressure closes the needle hole formed at the time of insertion, and the effect of preventing leakage of the water and the aqueous solution 5 is completed. In other words, the convex portion 2b acts on both the effect of preventing leakage from the gap between the inner diameter of the cylindrical body 3a and the outer diameter of the annular portion 2a and the effect of preventing leakage of needle hole force. In addition, as an example, the material of the cylinder 4b is nylon resin, but if it is a non-volatile material having higher hardness and a higher Young's modulus than silicon rubber, it may be another resin or metal such as aluminum.

[0015] The round tray-shaped packing 4 is configured such that the storage bag 2 is sandwiched and fitted at a position in a straight line so that the hole 4c can penetrate the hole 3b of the frame 3 and an ultrafine pipe such as an injection needle. Have been. The outer diameter of the protrusion 2b of the storage bag 2 is formed to be larger than the inner diameter of the cylindrical body 3a of the frame 3, and when assembled to the frame 3 together with the round basin packing 4, 2b is deformed so as to match the inner diameter of the cylindrical body 3a and pressed against it, and the outer diameter of the cylinder 4b is pressed against the concave inner diameter of the annular portion 2a to prevent water and aqueous solution 5 from leaking outside. Then

[0016] While generated, it is generated by dissolved gas which is mixed in the manufacturing process or dissolved in water There are bubbles. In addition, since the storage bag 2 of the ultrasonic probe water bag device 1 filled with water or the aqueous solution 5 is made of rubber, when stored for a long time, water molecules are vaporized into the air from between the molecules of the storage bag 2 ( (Evaporation), and a squeezed state occurs in which the volume of the storage bag 2 is reduced. In such a case, as shown in FIG. 6, water or an aqueous solution can be replenished to the ultrasonic probe device 1 with a syringe or the like, or can be removed, or bubbles can be removed.

Brief Description of Drawings

FIG. 1 is a three-dimensional perspective view of a water bag device for an ultrasonic probe according to an embodiment of the present invention.

FIG. 2 is a sectional view of a water bag device for an ultrasonic probe according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view of the storage bag according to the embodiment of the present invention.

FIG. 4 is a front view and a cross-sectional view of a frame according to the embodiment of the present invention.

FIG. 5 is a front view and a cross-sectional view of a round tray packing in the embodiment of the present invention.

FIG. 6 is a diagram showing how the water bag device for an ultrasonic probe according to the embodiment of the present invention is supplemented with water or an aqueous solution using a syringe.

FIG. 7 is a cross-sectional view in which an ultrasonic probe is set in a conventional water bag device for an ultrasonic probe.

FIG. 8 is a cross-sectional view of a conventional water bag device for an ultrasonic probe.

FIG. 9 is a sectional view of a conventional storage bag.

Explanation of symbols

[0018] 1 Water bag device for ultrasonic probe

2 Storage bag

3 Frame

4 Round tray packing

5 Water or aqueous solution

Claims

The scope of the claims

[1] A frame (cassette), a telescopic storage bag loaded with water and an aqueous solution fixed to the frame so as to have a projection, and an outer diameter slightly larger than the inner diameter of the annular portion of the storage bag. In a water bag device for an ultrasonic probe in an ultrasonic diagnostic device having a round basin-shaped packing, a hole is formed in the outer periphery of the frame (cassette), and an annular portion of the extendable storage bag is concave. A convex portion is provided on the outer peripheral surface of the concave shape, and a hole is formed in the outer peripheral portion of the round tray-shaped packing so that the hollow tube can be inserted into the storage bag. A water bag device for an ultrasonic probe in an ultrasonic diagnostic apparatus, wherein a hole of a portion and a hole of an outer peripheral portion of the round tray-shaped packing are fitted at linear positions.

2. The ultrasonic diagnostic apparatus according to claim 1, wherein the film thickness of the hemispherical portion of the retractable storage bag gradually decreases toward the tip where the largest diameter portion has the largest and smallest diameter. Water bag device for probe.