JP2016087113A - Liquid bag pour in/out mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid bag pour in/out mechanism provided at a liquid bag that contains liquid for pouring in or out the liquid, which can be opened or closed without anxiety of losing a component.SOLUTION: A liquid bag pour in/out mechanism 16 for pouring in or out liquid is provided at a water bag 1 for an ultrasonic probe, the water bag containing liquid. The liquid bag pour in/out mechanism 16 is provided with: an aperture 36 in which a pour in/out port 34 for pouring in or out the liquid is formed; and a lid 40 connected with the aperture 36 via a hinge 38 to openably cover the pour in/out port 34.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a liquid bag pouring / dispensing mechanism.

  In the diagnosis using an ultrasonic probe in a part with large irregularities such as the breast, thyroid gland, and the head of a newborn, for example, when the ultrasonic probe is applied to the lump, the lump escapes from the probe contact part due to the pressing force, and the affected part is super There are problems such as feeling pain when the sonic probe is applied. Therefore, in order to solve the problem, a water bag is attached to the tip of the ultrasonic flow to soften the tip.

  As the water bag, for example, a first film that is in contact with the subject and a second film that is in contact with the tip of the ultrasonic probe are provided so as to face each other on a frame on which the ultrasonic probe can be attached. There is known an ultrasonic probe water bag in which an acoustic transmission liquid (such as ultrapure water) is sealed between a membrane and a second membrane (Patent Document 1). In the ultrasonic probe water bag, for example, the liquid is poured out for the purpose of replacing the internal acoustic transmission liquid or adding water when the internal water gradually passes through the first membrane and the amount of water decreases. Alternatively, a dispensing mechanism for injecting is provided.

  As such a liquid bag pouring-in / out mechanism, for example, as described in Patent Document 1, there is a wide mechanism for liquid-tightly closing a pouring inlet for pouring or injecting liquid with a screw-type stopper. It is used.

Japanese Patent Laid-Open No. 11-216137

  However, with a mechanism that closes the spout inlet with a screw-type stopper, the stopper may be lost when the stopper is removed and the outlet is opened.

  The present invention relates to a liquid bag pouring / injecting mechanism provided for injecting or pouring liquid into a liquid bag containing liquid, and capable of opening and closing without worrying about losing parts. The purpose is to provide.

  The liquid bag pouring / injecting mechanism according to the present invention is a liquid bag pouring / injecting mechanism for injecting or pouring liquid, which is provided in a liquid bag for containing liquid, and has a pouring inlet for injecting or pouring liquid. It is provided with the formed opening | mouth part, and the cover part which is connected via the said opening part and the hinge part, and plugs up the said pouring opening | mouth so that opening and closing is possible.

In the liquid bag pouring / dispensing mechanism of the present invention, the lid portion includes a lid body portion and a male fitting portion projecting outward from a tip of the lid body portion opposite to the hinge portion, Projecting from the opposite side of the hinge portion with respect to the pouring inlet, is rotatable about a base end, and the male fitting portion is detachably fitted with the lid portion closed. A female fitting portion is provided, and the surface of the male fitting portion facing the mouth portion in a state where the lid portion is closed is inclined so as to move away from the mouth portion toward the tip, and the lid portion When the inclined surface of the male fitting portion comes into contact with the distal end portion of the female fitting portion when closing the female fitting portion, the female fitting portion is pushed open. preferable.
Moreover, it is preferable that the said cover part is provided with a rubber | gum stopper which is provided so that a cover main-body part and the said cover main-body part may be penetrated, and is press-fitted liquid-tightly to the said extraction inlet.

  The liquid bag pouring / injecting mechanism of the present invention is provided for injecting or pouring liquid into or out of a liquid bag that contains liquid, and can be opened and closed safely without fear of losing parts.

It is the perspective view which showed an example of the water bag for ultrasonic probes provided with the pouring in / out mechanism for liquid bags of this invention. FIGS. 2A and 2B show a liquid bag pouring / inserting mechanism of the ultrasonic probe water bag of FIG. 1, in which FIG. 1A is a perspective view, and FIG. The state which opened the female type fitting part in the pouring in and out mechanism for liquid bags of Drawing 2 outside is shown, (A) is a perspective view and (B) is a sectional view. It is sectional drawing which shows a mode that a cover part is closed in the state which stood the female type fitting part in the pouring in / out mechanism for liquid bags of FIG. The state which opened the cover part in the pouring in / out mechanism for liquid bags of FIG. 2 is shown, (A) is a perspective view, (B) is sectional drawing.

Hereinafter, as an example of the liquid bag pouring / introducing mechanism of the present invention, an ultrasonic probe water bag provided with the liquid bag pouring / introducing mechanism of the present invention will be described as an example.
The ultrasonic probe water bag 1 (hereinafter referred to as “water bag 1”) of the present embodiment is attached to the tip of the ultrasonic probe. As shown in FIG. 1, the water bag 1 includes a first film 10, a second film 12, and an outer frame portion that is liquid-tightly attached so that the first film 10 and the second film 12 face each other. 14. In the water bag 1, the liquid is stored in a storage portion formed between the first film 10 and the second film 12 attached to the outer frame portion 14. In addition, the outer frame portion 14 of the water bag 1 is provided with a liquid bag pouring / dispensing mechanism 16 for injecting or pouring liquid.

The first film 10 is a film that comes into contact with the subject at the time of diagnosis. The first film 10 has a concave shape with a substantially rectangular shape in plan view.
As the 1st film | membrane 10, the well-known film | membrane used for the water bag for ultrasonic probes can be used, For example, the film | membrane made from a silicone rubber is mentioned.

The second film 12 is a film that comes into contact with the probe tip when the water bag 1 is attached to the ultrasonic probe. The second film 12 is a concave shape having a substantially rectangular shape in plan view.
As the 2nd film | membrane 12, the well-known film | membrane used for the water bag for ultrasonic probes can be used, For example, the film | membrane made from a silicone rubber is mentioned.

  The outer frame portion 14 of this example includes an annular frame body 18 having a substantially rectangular shape in plan view, an engagement portion 20 erected from one end 18a in the length direction of the frame body 18, and a frame A side wall portion 22 standing from a portion excluding one end portion 18a in the inner peripheral edge of the body main body 18, and a liquid bag injection formed integrally with the side wall portion 22 on the other end portion 18b side of the frame body main body 18. And an entry / exit mechanism 16.

  The engaging portion 20 is engaged with a wall portion 20a erected from the frame body 18 and a probe-side engaging portion (not shown) provided at the distal end portion of the ultrasonic probe, protruding from the inner surface of the wall portion 20a. Engaging projections 20b. By engaging the engaging convex portion 20b with the probe side engaging portion, the water bag 1 can be detachably attached to the distal end portion of the ultrasonic probe.

  As the material of the frame body 18, the engaging portion 20, and the side wall portion 22, known materials used for ultrasonic probe water bags can be used, for example, normal rigidity of various resins, various glasses, various ceramics, various metals, and the like. It is made of a certain material. Examples of the resin include polyolefin (polyethylene, polypropylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer (EVA), etc.), polyvinyl chloride, polyvinylidene chloride, polystyrene, polyamide, polyimide, polyamideimide, polycarbonate. , Poly- (4-methylpentene-1), ionomer, acrylic resin, polymethyl methacrylate, acrylonitrile-butadiene-styrene copolymer (ABS resin), acrylonitrile-styrene copolymer (AS resin), butadiene-styrene copolymer Polymer, polyester (polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polycyclohexane terephthalate (PCT), etc.), polyether, polyetherketone (PEK), polyester Ether ether ketone (PEEK), polyether imide, polyacetal (POM), polyphenylene oxide, modified polyphenylene oxide, polysulfone, polyethersulfone, polyphenylene sulfide, polyarylate, aromatic polyester (liquid crystal polymer), polytetrafluoroethylene, polyfluoride Examples thereof include hard resin such as vinylidene chloride, fluorine-based resin, blends containing one or more of these resins, and polymer alloys.

  As shown in FIGS. 1 and 2, the liquid bag pouring / dispensing mechanism 16 is connected via a mouth portion 36 in which a pouring inlet 34 for injecting or pouring liquid is formed, and the mouth portion 36 and a hinge portion 38. And a lid portion 40 that closes and opens the pouring inlet 34. Since the water bag 1 is provided with the liquid bag pouring / injecting mechanism 16 that can open and close the pouring inlet 34 by the lid portion 40, parts are lost compared to the case of opening and closing the pouring inlet 34 using a screw-type stopper. There is no fear, you can open and close with confidence.

  The mouth portion 36 is provided so as to protrude from the other end portion 18 b side of the side wall portion 22, a pouring inlet 34 is formed at the tip portion, and a pouring inlet / outlet chamber 35 communicating with the accommodating portion is formed inside.

  The lid part 40 is provided so as to penetrate the lid body part 42, the male fitting part 44 projecting outward from the tip of the lid body part 42 opposite to the hinge part 38, and the lid body part 42, And a rubber stopper 50 that is press-fit into the inlet / outlet 34 in a liquid-tight manner. Further, the mouth portion 36 is provided with a female fitting portion 46 that protrudes from the opposite side of the hinge portion 38 with respect to the pouring inlet 34 and is detachably fitted to the male fitting portion 44.

A protruding portion 44 a that protrudes outward is provided on the outer surface of the distal end portion of the male fitting portion 44.
The female fitting part 46 includes a pair of side frame parts 46a and 46b, and an upper frame part 46c that connects the side frame part 46a and the tip of the side frame part 46b, and the male fitting part 44 is fitted inside. An opening 46d that fits in is formed. Further, the female fitting portion 46 is attached so that the base end portions of the side frame portions 46 a and 46 b are attached to the mouth portion 36, and the tip end portion thereof is tilted away from the hinge portion 38 with these base end portions as fulcrums. Can be rotated. On the inner side of the upper frame portion 46c of the female fitting portion 46, a protruding portion 46e protruding inward is provided.

  As shown in FIG. 3, in the liquid bag pouring / injecting mechanism 16, the pouring inlet 34 is closed by the lid 40 in a state where the female fitting portion 46 is opened outward so as to be away from the lid 40. Next, by rotating the female fitting portion 46 toward the lid portion 40, the male fitting portion 44 is fitted into the opening 46d of the female fitting portion 46 as shown in FIG. The state where the portion 44a and the protruding portion 46e are engaged and the pouring inlet 34 is closed by the lid portion 40 is stably held.

  As in this example, the male fitting portion 44 is inclined such that the inner side surface 44b thereof, that is, the surface facing the mouth portion 36 with the lid portion 40 closed, is away from the mouth portion 36 toward the tip. It is preferable. Then, as shown in FIG. 4, when the lid 40 is closed while the female fitting portion 46 is standing, the inner side surface 44 b of the male fitting portion 44 is the upper frame portion of the female fitting portion 46. It is preferable that the female fitting portion 46 be pushed outward when it abuts against 46c. Thereby, even if it forgets to open the female fitting part 46 outside when closing the cover part 40, the male fitting part 44 and the female fitting part 46 are hard to be damaged. It becomes easy to suppress the liquid leakage resulting from the damage at the time of opening and closing 40.

  In this example, as shown in FIG. 2, a rubber plug 50 that is liquid-tightly press-fitted into the dispensing inlet 34 is provided at the center of the lid body 42 so as to penetrate the lid body 42. The distal end portion of the rubber plug 50 is positioned inside the mouth portion 36 when the lid portion 40 is closed and press-fitted into the pouring inlet 34 of the mouth portion 36. By the rubber plug 50 being press-fitted into the dispensing inlet 34, liquid leakage is sufficiently suppressed. Therefore, it can suppress that a liquid leak arises during a diagnosis and stress is given to a subject.

  In the distal end portion of the rubber plug 50 in this example, an enlarged diameter portion 52 having a larger outer diameter than the portion other than the distal end portion and a larger outer diameter than the diameter of the dispensing inlet 34 is provided. That is, a diameter-enlarged portion 52 having an outer diameter larger than the diameter of the pouring inlet 34 is provided in a portion of the rubber plug 50 positioned inside the mouth portion 36 when the rubber plug 50 is press-fitted into the pouring inlet 34. Yes. As a result, even when a force for pulling out the rubber stopper 50 unexpectedly is applied when the male fitting portion 44 and the female fitting portion 46 are disengaged in the state where the lid portion 40 is closed, Since the enlarged diameter part 52 is caught inside the mouth part 36, it is suppressed that the cover part 40 opens. Therefore, it can suppress more stably that the cover part 40 opens unexpectedly during a diagnosis and a liquid leak arises and gives a stress to a subject.

Further, the outer peripheral surface of the rubber plug 50 of this example protrudes outward over the entire periphery, and is annularly crimped around the outlet 34 in the mouth portion 36 when the rubber stopper 50 is press-fitted into the outlet 34. A portion 54 is provided. Since the pressure-bonding portion 54 is provided in the rubber plug 50, the pressure-bonding portion 54 is pressure-bonded around the pouring inlet 34 in the mouth portion 36 when the lid portion 40 is closed. Even if it does not provide, the liquid leakage in the state which closed the cover part 40 is suppressed stably. Therefore, liquid leakage can be stably suppressed while making the mouth portion 36 and the lid portion 40 compact.
The surface on the mouth portion 36 side of the crimping portion 54 is provided so as to slightly protrude from the surface on the mouth portion 36 side of the lid main body portion 42, and when the lid portion 40 is closed and the crimping portion 54 is crimped to the mouth portion 36. It is preferable that the gap between the mouth portion 36 and the lid portion 40 be small.

Moreover, it is preferable that the rubber stopper 50 can pierce the injection needle from the outside to the inside. As a result, even when the dispensing inlet 34 is closed by the lid portion 40, the injection needle is pierced into the rubber stopper 50, and the liquid in the dispensing inlet / outlet chamber 35 is poured out or injected using the syringe, thereby being accommodated in the accommodating portion. The amount of liquid to be adjusted can be finely adjusted.
In the rubber plug 50 of this example, a concave portion 50a and a concave portion 50b are formed in the central portions of the inner side surface and the outer side surface, respectively, and the thickness of the central portion of the rubber plug 50 is reduced. Thereby, it is easy to pierce the needle from the concave portion 50 b outside the rubber plug 50 to the pouring / entering chamber 35 inside the mouth portion 36.

As materials for the mouth portion 36, the hinge portion 38, the lid main body portion 42, the male fitting portion 44 and the female fitting portion 46, known materials used for ultrasonic probe water bags can be used. The same hard resin as mentioned as a material of the main body 18, the engaging part 20, and the side wall part 22 is mentioned.
The material of the rubber plug 50 is not particularly limited, and examples thereof include various rubbers and various elastomers. Examples of the rubber include silicone rubber, natural rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, nitrile rubber, chloroprene rubber, butyl rubber, acrylic rubber, ethylene-propylene rubber, hydrin rubber, urethane rubber, and fluorine rubber. . Examples of the elastomer include a styrene thermoplastic elastomer, a polyolefin thermoplastic elastomer, a polyvinyl chloride thermoplastic elastomer, a polyurethane thermoplastic elastomer, a polyester thermoplastic elastomer, a polyamide thermoplastic elastomer, a polybutadiene thermoplastic elastomer, Examples thereof include trans polyisoprene-based thermoplastic elastomers, fluororubber-based thermoplastic elastomers, and chlorinated polyethylene-based thermoplastic elastomers.

The manufacturing method of the water bag 1 is not specifically limited, A well-known method is employable.
As a liquid accommodated in the accommodating part between the 1st film | membrane 10 and the 2nd film | membrane 12 of the water bag 1, what is necessary is just a liquid which enables an ultrasonic diagnosis, and a well-known liquid can be used. Specifically, ultrapure water etc. are mentioned, for example.

(Mechanism of action)
Hereinafter, the operation of the water bag 1 will be described.
When the liquid is stored in the water bag 1, first, as shown in FIG. 5, the female fitting portion 46 is tilted outward, the lid portion 40 is opened, and the pouring inlet 34 of the mouth portion 36 is opened. In this state, the liquid is injected into the accommodating portion between the first film 10 and the second film 12 from the pouring inlet 34 through the pouring inlet / outlet chamber 35. Next, as shown in FIG. 3, the rubber plug 50 is press-fitted into the dispensing inlet 34, and the dispensing inlet 34 is closed liquid-tightly by the lid portion 40. Next, the female fitting portion 46 is rotated toward the lid portion 40, and the male fitting portion 44 of the lid portion 40 is fitted into the opening 46d of the female fitting portion 46 as shown in FIG. As a result, the pouring inlet 34 is fixed in a state of being closed by the lid portion 40.

After the liquid is stored in the storage portion of the water bag 1, the ultrasonic waves are generated inside the engagement portion 20 and the side wall portion 22 on the opposite side of the second film 12 from the first film 10 in the frame body 18 of the outer frame portion 14. The water bag 1 is attached to the tip of the ultrasonic probe by inserting the tip of the probe. At this time, an ultrasonic jelly is applied to the tip of the ultrasonic probe as necessary.
When finely adjusting the amount of liquid in the container, the needle 40 is pierced into the rubber stopper 50, and the liquid in the dispensing chamber 35 is poured out or injected using a syringe so that the lid 40 remains closed. But you can adjust it.

When the liquid in the housing portion gradually permeates through the first film 10 due to long-term use and the liquid amount is reduced, when the liquid in the housing portion is replaced, the female fitting portion 46 is placed outside. Then, the male fitting part 44 and the female fitting part 46 are disengaged from each other, and the rubber stopper 50 is pulled out from the dispensing inlet 34 to open the lid part 40. Next, after the liquid is injected or poured out from the pouring inlet 34 through the pouring inlet / outlet chamber 35, the lid 40 is closed again, and the male fitting portion 44 and the female fitting portion 46 are fitted and fixed.
In the water bag 1, since the pouring inlet 34 is opened and closed by the lid portion 40 connected to the mouth portion 36 and the hinge portion 38 in this way, the parts are compared with the case where the pouring inlet 34 is opened and closed by a screw-type stopper. There is no risk of losing the battery and you can operate it with peace of mind.

  Further, as shown in this example, the inner side surface 44b of the male fitting portion 44 is inclined, and when the lid portion 40 is closed, the inner side surface 44b of the male fitting portion 44 is fitted with a female fitting as shown in FIG. If the female fitting portion 46 is pushed outward when it comes into contact with the mating portion 46, the male fitting portion 44 and the female fitting portion 46 are damaged when the lid 40 is opened and closed. It is difficult to leak more easily.

The liquid bag pouring / injecting mechanism of the present invention is not limited to the liquid bag pouring / introducing mechanism 16 of the water bag 1 described above.
For example, in the liquid bag pouring / injecting mechanism of the present invention, the inner side surface 44b of the male fitting portion 44 may not be inclined so as to move away from the mouth portion 36 toward the tip. Further, the liquid bag pouring / injecting mechanism of the present invention is a male mold formed by recessing the surface facing the male mold fitting portion 44 in a concave shape instead of the female mold fitting portion 46 having the opening 46d. You may have a recessed part into which the fitting part 44 fits.

  In the liquid bag pouring / injecting mechanism of the present invention, the lid may include a rubber stopper that does not have either one or both of the enlarged diameter portion 52 and the crimping portion 54. Further, the lid portion may not have a rubber plug. If the rubber plug does not have a pressure-bonding part, or if the lid part does not have a rubber plug, the area around the spout inlet in the mouth part or the surface facing the mouth part of the lid part from the point of suppressing liquid leakage It is preferable to provide an O-ring at a portion corresponding to the periphery of the dispensing inlet.

  In addition, the liquid bag pouring / dispensing mechanism of the present invention is not limited to that provided in the ultrasonic probe water bag as long as it is provided in the liquid bag containing the liquid. For example, the liquid bag pouring / introducing mechanism of the present invention may be provided in a water pillow or the like.

DESCRIPTION OF SYMBOLS 1 Ultrasonic probe water bag 10 1st film | membrane 12 2nd film | membrane 14 Outer frame part 16 Liquid bag pouring / injecting mechanism 34 Outlet port 36 Mouth part 38 Hinge part 40 Lid part 42 Lid body part 44 Male fitting part 44a Inner side surface 46 Female fitting part

Claims (3)

A liquid bag pouring / injecting mechanism for injecting or pouring liquid provided in a liquid bag containing liquid,
A liquid bag pouring / dispensing mechanism comprising: a mouth portion formed with a pouring inlet for injecting or pouring liquid; and a lid portion that is connected to the mouth portion via a hinge portion and closes the pouring mouth so as to be opened and closed. The lid portion includes a lid main body portion and a male fitting portion that protrudes outward from the tip of the lid main body portion opposite to the hinge portion;
Projecting from the opposite side of the hinge portion to the outlet with respect to the outlet, is rotatable about the base end, and the male fitting portion is detachably fitted with the lid portion closed. A mating female fitting is provided,
A surface of the male fitting portion facing the mouth portion in a state where the lid portion is closed is inclined so as to move away from the mouth portion toward the tip, and the male fitting is performed when the lid portion is closed. 2. The liquid bag injection according to claim 1, wherein the female fitting portion is pushed open when the inclined surface of the portion abuts against a distal end portion of the female fitting portion. Access mechanism.   3. The liquid bag injection according to claim 1, wherein the lid includes a lid main body and a rubber stopper that is provided so as to penetrate the lid main body and is liquid-tightly pressed into the extraction inlet. Access mechanism.