CN1197678A - Liquid supply device - Google Patents

Abstract

The liquid supply device has elastic rubber film inside the casing, and on the cover of the protecting casing there is liquid inlet port for injetting liquid into the elastic rubber film and liquid outlet port for liquid inside the elastic rubber film to flow out and connected to pipe. Owing to the V-shaped arrangement of the liquid inlet port and the liquid outlet port at adjacent position on the protecting casing, the protecting casing is easy to store in bag for carrying about. Having liquid inlet port and liquid outlet port makes it possible to supply liquid continuously while injecting liquid into the elastic rubber film.

Description

Fluid Supplying apparatus

The present invention relates to a kind of fluid Supplying apparatus, is the device that the liquid that will be stored in the tubular rubber elastic-like film continues to confess under the effect of this rubber-like elastica contractility.For example, be to be used for biologies such as sustainable supply human bodies such as medicinal liquid or infusion solution or animals, or with water, nutrient (liquid), medicinal liquid sustainable supply plants such as (insect protected liquid), perhaps with medicinal liquids such as antibiont, bait (liquid) or pasture and water with the breed fish fluid Supplying apparatus of tank etc. of nutrient sustainable supplies such as (liquid).

As the liquid medicine injection apparatus that medicinal liquid is continued inject human body is known micro-ly the structure that is provided with medicinal liquid inflow portion and medicinal liquid outflow portion on the opposition side of housing arranged in the past, as as shown in Japanese kokai publication sho 56-102252 communique etc., or be provided with the structure of medicinal liquid inflow portion and medicinal liquid outflow portion in the same side of cover, as shown in the Japanese kokai publication hei 6-121835 communique of the previous proposition of the applicant.

Preceding a kind of structure is; has protection housing cylindraceous; be sealed in the balloon (aryballos) that this protection housing elastomeric material interior and its internal storage medicinal liquid is made; be located on aforementioned protection housing one end face and medicinal liquid is flowed into inflow portion in the balloon; be located at the outflow means that prevents that constitutes next door etc. in this inflow portion, by sealable soft rubber etc.; be located on the aforementioned protection housing other end and with the effusive outflow of the medicinal liquid in described balloon portion, therewith the conduit that links to each other of outflow portion and the entry needle that is connected in this catheter proximal end.

In use, bobbin (syringe) front end of depositing medicinal liquid is inserted into inflow portion after, push out the medicinal liquid in the tube.Like this, medicinal liquid is deposited in the balloon when making balloon expansion.Prevent that the outflow means prevention is stored in the outflow of the interior medicinal liquid of balloon from inflow portion, and under the effect of balloon contractility, by conduit, medicinal liquid can continue to inject human body micro-ly.

For a kind of mode in back; its structure is; has protection housing cylindraceous; be sealed in the balloon that this protection housing elastomeric material interior and its internal storage medicinal liquid is made; connect described protection housing an end face be inserted in the described balloon and its outer end has the inflow/effuser of check-valves; inflow/effuser links to each other and being shaped as abnormity, having the pipe (flow-control means) that is formed by thermoplastic resin of given length of section perforate therewith, and is located at the entry needle that this manages front end.

In the use, the front end of depositing the bobbin (syringe) of medicinal liquid inserted inflows/effuser after, push the medicinal liquid in the tube, like this, medicinal liquid also deposits in the balloon balloon expansion by check-valves simultaneously.After medicinal liquid is deposited, the front end of tube is pulled up from inflow/effuser, specifically, the front end of the pipe that will be formed by thermoplastic resin inserts inflow/effuser, open check-valves after, open and be located at pipe valve midway, like this, the medicinal liquid that is stored in the balloon just continues to inject human body by managing micro-ly under the effect of balloon contractility.

For preceding a kind of structure; be located at because of medicinal liquid inflow portion and medicinal liquid outflow portion on the both ends of the surface (opposite side) of protection housing; thereby; for example; for accepting the patient that medicinal liquid injects; convenient in action, the protection housing can be deposited under the situation in the bag of self, also since medicinal liquid inflow portion give prominence to from protection housing both ends of the surface with medicinal liquid outflow portion, also have not easy to store, carry inconvenient shortcoming.And,, have and can not confirm safety operation etc., the bad shortcoming of operability because of medicinal liquid inflow portion and medicinal liquid outflow portion are on the protection housing both ends of the surface.

For a kind of structure in back; because the inflow of medicinal liquid; outflow can be carried out in protection housing the same side; thereby unmatched a kind of shortcoming that has; but, replenish the shortcoming of injecting medicinal liquid in patient's body on one side on one side so have medicinal liquid to be injected constantly owing to carry out the inflow/outflow of medicinal liquid by 1 inflow/effuser conversion.

In addition, any for the two, because the section configuration of protection housing is circular, if by depositing in of medicinal liquid balloon expansion is gone down, balloon can contact with the internal perisporium of protection housing is whole.Because big with the contact area of protection housing, thereby the resistance not only can become balloon expansion the time, and also change thereupon of contractility, there is the unsettled shortcoming of medicinal liquid injection rate.

In addition, the protection housing is provided with expansion, the contraction permission air mobile passage inside and outside cover along with balloon.Yet, if balloon and whole contact of protection housing internal perisporium because the space can be plugged in the cover of balloon expansion direction, have limited the expansion of balloon more than it, thereby the installation site of passage must be located on the housing of balloon expansion direction side.That is, has the restricted shortcoming in passage installation site.

The purpose of this invention is to provide a kind of overcome above-mentioned shortcoming in the past, can be convenient to deposit, easy to carry and can supply with the fluid Supplying apparatus that replenish injection liquid while continuing to carry out liquid.

Other purpose of the present invention provide a kind of good operability, can be correctly feed fluid constantly, do not limit the fluid Supplying apparatus of the installation site of passage simultaneously yet.

For achieving the above object, fluid Supplying apparatus of the present invention has the protection housing, deposits in this protection housing and its inner tubular rubber elastic-like film and feed tube for liquid that has liquid; Under the contractility effect of this rubber-like elastica; by described feed tube for liquid; make the liquid output of depositing in the described rubber-like elastica; it is characterized in that adjacent ground connection is being provided with and liquid is being injected the liquid inflow port in the described rubber-like elastica and will be stored in the liquid outflow port that liquid in the described rubber-like elastica flows out to described feed tube for liquid on described protection housing.

Adopt structure of the present invention, when liquid being injected in the rubber-like elastica through liquid inflow port, the liquid that injects in this rubber-like elastica is exported through liquid outflow port and feed tube for liquid under the contractility effect of rubber-like elastica.At this, liquid inflow port and liquid outflow port are located on the protection housing because of adjacent ground connection, promptly because liquid inflow port and liquid outflow port can not be located on the both ends of the surface of protection housing, thereby are easy to deposit, and be easy to carry.And,, replenish injection liquid while can continue to carry out the liquid conveying owing to have liquid inflow port and liquid outflow port.In addition, feed tube for liquid is to be made of and its section opening shape is odd-shaped and has given length the thermoplastic resin pipe, thereby by this pipe with catheter functions and flow regulating function, the flow of controlling liquid quantitatively.

In addition, the protection housing is made of cylindrical shell that bottom tube-like is arranged and the lid that is embedded in this cartridge openings end, is easy to assembling, decomposes.And adopting is in the shape of the letter V on the lid is disposed at the structure of described liquid inflow port and liquid outflow port, even with these liquid inflow ports and the adjacent setting of liquid outflow port, also can not hinder injection, the supply of liquid, so can make the device integral miniaturization.Moreover the cervical region of these liquid inflow ports and liquid outflow port can be operated easily to be carried out the implant operation of liquid by the mode of clamping.

At this moment, on the either party of the lid of cylindrical shell, be provided with projection and on the opposing party, be provided with the conjugate foramen that projection therewith engages, by projection with engaging of conjugate foramen with cylindrical shell and lid assembling, so both difficult drop-offs during use are the safety raising.In addition, on lid, have described liquid inflow port and liquid outflow port and liquid ingress pipe and be the structure that the Y font is provided with, the liquid ingress pipe inserts in the described rubber-like elastica and it has external diameter and the length that is substantially equal to rubber-like elastica internal diameter and length when shrinking, while ingress pipe inside is with described liquid inflow port and liquid outflow port is communicated with and it has its inside and outside slit of connection, because the rubber-like elastica can be shunk and be abutted in the liquid ingress pipe in appearance, thereby can make the liquid residual of supplying with when finishing less.

At this moment, as the means that are fastened at the opening ora terminalis that clings to the rubber-like elastica under the liquid ingress pipe outer surface state on the liquid ingress pipe, it is feasible adopting metal pin etc., but adopt the mode of the fastening maintenance of tubulose elastic webbing, then can not leak problem thereby do not have liquid with the opening ora terminalis of the fastening rubber-like elastica of uniform fastening force yet.

In addition, on described liquid inflow port, also be provided with the described liquid inflow of permission and stop its effusive check-valves, by check-valves liquid is stored in the rubber-like elastica, the operation in the time of easily carrying out the liquid injection.

As check-valves, can adopt and to make liquid any one in the mobile structure of a direction, for example, structure with valve cylinder, strengthening part and valve rod is comparatively ideal, wherein valve cylinder is that the tubular of both ends open and its a distolateral inside have valve seat, the strengthening part built is in another distolateral inside of this valve cylinder, valve rod is stored in the described valve cylinder and with respect to moving towards the direction of lifting off a seat from fluidic inflows of the distolateral opening of described valve cylinder one, and moves with respect to the direction of joining from the outflow court of the liquid of described valve cylinder other end side opening and valve seat.So, even valve cylinder is pressed into liquid inflow port, because the strengthening part built, can be avoided the valve cylinder distortion in another distolateral inside of valve cylinder.

At this moment, also be provided with the cover piece that covers the check valve openings end, not with liquid when liquid inflow port is supplied with, because of the opening of check-valves is covered by cover piece, can prevent to invade foreign body from the opening of check-valves.At this moment, as lid piece structure, employing have the stator that engages and remain on the lid with by banded hinge therewith stator is connected the structure of cover plate that also releasably is embedded in check-valves valve cylinder one end opening end, can be under the effect of banded hinge, when opening cover plate, this cover plate leaves the opening of check-valves, and just in time is fitted to the opening of check-valves during chimeric cover plate.

In addition, make the section configuration of cylindrical shell make elliptical shape, the elastic-like film that joins expands because of injection liquid, lacking in the time of being circular with the contacted area of cylinder inboard wall than the section configuration of protection housing, and, can guarantee to protect the interior air of housing to flow.Thereby, in sustainable supply liquid correctly, the installation site of also not limiting passage.And, even the protection housing can not fall down operation easily yet when tilting.

Have again,, can be clamped on the part (for example pocket) of clothes by the protection housing with this clamp on the periphery wall of cylindrical shell, be provided with clamp on the periphery wall of major diameter direction.

In addition, adopted be connected and fixed on the lid and be arranged on the rubber-like elastica periphery and along with the spiral spring of the expansion elongation of this rubber-like elastica, simultaneously, on the periphery of cylindrical shell, be provided with the graduated structure of representing to be stored in amount of liquid in the rubber-like elastica from the front position of spring, according to spring extended position and graduated relation, can correctly hold the liquid storage capacity that is stored in the rubber-like elastica.And according to spring function, the contact area with the protection housing in the time of making the rubber-like inflation of elastic membrane reduces, and, because the rubber-like elastica also can positively be shunk, supply with liquid residue when finishing so can reduce.

Fig. 1 illustrates the oblique view of the embodiment of fluid Supplying apparatus of the present invention,

Fig. 2 illustrates the sectional drawing of this embodiment,

Fig. 3 illustrates the sectional drawing that this embodiment protects housing,

Fig. 4 illustrates the side view that this embodiment protects housing,

Fig. 5 illustrates the sectional drawing of this embodiment waterproof breather filter,

The tubulose elastic webbing that Fig. 6 illustrates this embodiment cuts a part of oblique view,

Fig. 7 illustrates the sectional drawing of the check-valves of this embodiment,

Fig. 8 illustrates the oblique view of the cover piece of this embodiment,

Fig. 9 illustrates the sectional drawing of the pipe fitting different section shape that is used for this embodiment device,

State diagram when Figure 10 illustrates medicinal liquid injected this embodiment device,

The sectional drawing that protection housing and rubber-like elastica concerned when Figure 11 illustrated medicinal liquid injected this embodiment device.

Embodiments of the invention are described below with reference to the accompanying drawings.

Present embodiment is to be applicable to that medicinal liquid injects an example of the liquid medicine injection apparatus of human body.Fig. 1 is an oblique view, and Fig. 2 is a sectional drawing, in these figure; the 1st, the protection housing; be made of cylindrical shell 2 and lid 5, cylindrical shell 2 is by what transparent materials such as plastics or glass were made the bottomless drum shape shape to be arranged, and lid 5 is cover pieces of aforementioned cylindrical shell 2 openings of embedding made by materials such as polypropylene.

Weeks are the section shape except circle in the aforementioned cylindrical shell 2, at this, section configuration be the elliptical shape (see figure 3) end tube arranged.And be provided with conjugate foramen 3 in open end side, simultaneously, outside on the peripheral wall surfaces, be provided with scale 4, and on another side, be provided with clamp 51 (see figure 4)s along a side of major diameter side.Scale 4 is provided with the even number scale 4A of " 0 ", " 20 " with cc unit representation medicinal liquid storage capacity (the medicinal liquid storage capacity in the rubber-like elastica 11 described later), " 40 ", " 60 " towards the bottom from the above-below direction centre position of cylindrical shell 2, and the odd number scale 4B of being expressed as between these scales " 10 ", " 30 ", " 50 ".Clamp 51 is made of a pair of holding piece 52,53 that is comprised, and by elliptical spring among the figure, this is exerted pressure mutually towards closing direction to holding piece 52,53, and holding piece 52 wherein is adhesively fixed on the lid 5.

Form the projection 6 that engages with the conjugate foramen 3 of aforementioned cylindrical shell 2 on the periphery wall of aforementioned lid 5, simultaneously, be respectively equipped with medicinal liquid ingress pipe 7 and passage 9 on upper wall substantial middle position, medicinal liquid ingress pipe 7 extends in aforementioned cylindrical shell 2.The liquid ingress pipe of elongated cylindrical is at both ends open, and many slits 8 that are communicated with inside and outside having on the perimeter surface.As shown in Figure 5, waterproof breather filter 9A is housed on the passage 9, it can make 1 inside and outside gas (air) circulation of protection housing but stop the medicinal liquid circulation.Prevent that breather filter 9A from being comparatively ideal as the resistance to chemical reagents filter that adopts the synthetic fibers crossed through water-proofing treatment to make.

Have the tubular rubber elastic-like film 11 at the end to be embedded in the described medicinal liquid ingress pipe 7, and its opening cause tubulose elastic webbing 12 shown in Figure 6 keep with the state of reclining.Internal diameter and length size about equally when the external diameter of medicinal liquid ingress pipe 7 and length are made with 11 contractions of rubber-like elastica.Multipotency is stored the medicinal liquid of 60cc in the rubber-like elastica 11, and incidentally, when the used medicinal liquid of cancer pain, owing to injected 20cc in common 1 day approximately, the medicinal liquid of usefulness on the 3rd is stored in big activation.Along with injection, the storage of medicinal liquid, rubber-like elastica 11 expands, thereby has disposed the spring 10 that expands and extend with rubber-like elastica 11 in its periphery.For example, spring 10 is directly to be that the wire rod of 0.6～0.8mm constitutes by line, and, its upper end is affixed on the aforementioned lid 5, simultaneously, diameter is along with being rolled into more and more thinner helical form towards the below, and it joins by means of the front end of rubber-like elastica 11 with medicinal liquid ingress pipe 7 bottom at last.

Preferably, even aforementioned rubber-like elastica 11 is made by high tenacity, the also non-damageable resistance to chemical reagents material under effects such as medicinal liquid that is rich in retractility, particularly be preferably transparent or translucent material.For example, commercially available silicone rubber or latex rubber etc. are suitable for.And thickness is 0.2～2.0mm.Contractility when medicinal liquid is stored in the rubber-like elastica 11 is 1000～7000mm water column pressure preferably.Usually, human vein is about the 60mm water column, can inject in patient's body as the pressure more than this.The contractility of rubber-like elastica 11 is difficult to control when 1000mm is following, and when the 7000mm water column is above, it is difficult that the cylindrical shell inner liquid medicine is injected in the rubber-like elastica 11 by manpower.But, be not limited to this numerical range.

In addition, the V font that ostium 19 on aforementioned medicinal liquid ingress pipe 7 upper positions (lid 5) and tap hole 18 are set to be close, ostium 19 is as the liquid inflow port that medicinal liquid is injected in the aforementioned rubber-like elastica 11, and tap hole 18 is as the effusive liquid outflow port of medicinal liquid that will be stored in the aforementioned rubber-like elastica 11.In a word, the ostium 19 on the lid 5, tap hole 18 and medicinal liquid ingress pipe 7 are set to Y font roughly, and are communicated with mutually.Be provided with check-valves 13 in aforementioned ostium 19, it allows medicinal liquid to flow out towards the outside from medicinal liquid ingress pipe 7 from the outside towards 7 inflows of medicinal liquid ingress pipe and prevention medicinal liquid.

Aforementioned check-valves 13 is made of valve cylinder 15, strengthening part 15A and valve rod 16 as shown in Figure 7, and valve cylinder 15 is pressed in the ostium 19, and its two ends are that the tubular and a distolateral inside of opening has valve seat 14; Strengthening part 15A is the X shape to stride frame in another distolateral inside of this valve cylinder 15; Valve rod 16 is made of resistance to chemical reagents materials such as silicone rubbers, it is placed in the aforementioned valve cylinder 15, liquid with respect to valve cylinder 15 1 distolateral openings from then on flows into, moves towards 14 directions of lifting off a seat, and with respect to liquid from the outflow of valve cylinder 15 other end side openings, move towards the direction of joining with valve seat 14.

Outer end at aforementioned valve cylinder 15 can be installed with cover piece 17 with freely installing and removing, as shown in Figure 8, it by the stator 62 that engages with the projection 61 of described lid 5 with by banded hinge 63 therewith stator 62 be connected and constitute with the chimeric cover plate 64 of an end opening end of the valve cylinder 15 of aforementioned check-valves 17 dismantledly.

In addition, aforementioned tap hole 18 is connected with three-way valve 20 by means of thermoplastic resin pipe 27.Three-way valve 20 constitutes by having 3 conversion mouthful 21A, 21B, the valve body 22 of 21C and the valves 23 of translated channel.

The conversion mouth 21C of aforementioned three-way valve 20 is connecting connection tube 25 removably, and this connection tube 25 is arranged on the thermoplastic resin pipe 24 of double as flow-control means, and is laying the filter 26 of removing dust etc. in the medicinal liquid in its inside.Fixing the connection tube 28 identical at pipe 24 the other end, releasably be installed to the front end of connection tube 28 as the entry needle 31 that thrusts the human body utensil with connection tube 25.Thereby by the thermoplastic resin pipe 24 as the flow-control means, rubber-like elastica 11 inside are connected with the entry needle 31 that the human body utensil is thrust in conduct.

Pipe as thermoplastic resin pipe 24,27 can be a mono-layer tube, considers and strengthen and use that it also is feasible that employing has tectal pipe.Material as pipe 24 can use polypropylene (PP), polyethylene (PE), polyacetals (POM).Merlon (PC), ABS, polyamide, polystyrene (PS) etc., but preferably transparent.Cladding material during in addition as covering is the flexibility material preferably, can use hot castable resin elastomer, and can use polyolefin (LDPE, LLDPE) based elastomers, thermoplasticity polyurethane elastomer, soft PVC resin, EVA etc.

In addition, the section hole shape of pipe 24,27 is not the round hole as flow-control means in the past, but special-shaped perforate, Fig. 9 shows several examples.

Among Fig. 9, (A) the perforate 24A of the pipe 24 shown in be stretch to its center from the basic hole inwall of circle, with the mutual outstanding in pairs shape of 2 kinds of different dendritic processeses.

The perforate 24B of the pipe 24 (B) is grooves of the essentially rectangular that prolongs along radial direction with the identical allocation positions of 120 degree from 24 the center of managing, and its integral body is roughly the Y font and forms concavo-convex shape on the wall within it.

The perforate 24C of the pipe 24 (C) removes the shape that length concavo-convex and each rectangle radial direction shortens from the inwall of (B).

The perforate 24D of the pipe 24 (D) is the outstanding shapes of 3 couple of extending to its center from the inwall in circular foundation hole, be connected formation alternately with elongated triangle and circular projection.

The shape of the perforate 24E of the pipe 24 (E) is that the shape with dendritic processes in (A) shape diminishes and is provided with the concavo-convex shape of internal-gear shape at basic hole inwall simultaneously.

The special-shaped perforate of such pipe 24 in the degree of profile value of representing with the square root of its perforate inner peripheral size/section perforated area also relatively significantly in 7 above time abnormity effects, any degree of profile of above-mentioned each perforate 24A～24E is all more than 7.

In addition, the manufacture method of above-mentioned fine special-shaped hole shape pipe 24,27 can be with the die forming of for example being put down in writing for Japanese kokai publication sho 51-21927 number.Promptly, use with pipe 24 an external diameters scope about equally in have a plurality of resin entrance holes, on the part suitable, do not form the monofilament mould in hole simultaneously with perforate 24A～24E, from these entrance hole extruding melting resin monofilament, make its a plurality of adjacent monofilament fusions, obtain the pipe 24 of fine special-shaped hole shape, be not limited to this but manage 24 method for making.

The following describes the using method of present embodiment.

In the time medicinal liquid will being deposited in the rubber-like elastica 11, as shown in figure 10, the valve cylinder 15 of cover piece 17 from check-valves 13 taken off, the front end of the cylindrical shell 41 of having deposited medicinal liquid is inserted in the valve cylinder 15 of check-valves 13.In a single day push out the medicinal liquid in the cylindrical shell 41 under this state, medicinal liquid just is stored in the rubber-like elastica 11 rubber-like elastica 11 expansion limits by check-valves 13 limits.At this moment, along with the expansion spring 10 of rubber-like elastica 11 also extends, thereby, just can hold and deposit in the interior amount of liquid medicine of rubber-like elastica 11 according to the numerical value of the corresponding scale 4 of spring 10 front positions therewith.

Soon, rubber-like elastica 11 contacts with cylindrical shell 2 internal perisporiums of protection housing 1.At this moment, as shown in figure 11, because the section configuration of protection housing 1 forms ellipse, thereby contact area the lacking than when circle of rubber-like elastica 11 and protection housing 1.And owing to can guarantee to protect the air in the housing 1 to flow, the air in the cylindrical shell 2 is along with the expansion of rubber-like elastica 11, and 9A is discharged to the outside through the waterproof breather filter.Thereby, when continuing the correct supply of chemical in trace ground, the installation site of not limiting passage 9.After medicinal liquid was deposited, in case the front end of cylindrical shell 41 is extracted from check-valves 13, the valve seat 14 of check-valves 13 just was closed.Therefore, the medicinal liquid in the rubber-like elastica 11 just can not drain to the outside.

Then, entry needle 31 is installed on the connection tube 28 of pipe 24 front ends, this entry needle 31 thrust human body after, as open the valve 23 of three-way valve 20, mobile in turn micro-medicinal liquid just is injected in the human body in 27,24 by managing.Incidentally, mostly be 0.8ml/hr greatly as pettiness flow of the present invention, but can be arbitrarily selected according to special-shaped hole shape, length and medicinal liquid viscosity, promptly be not limited thereto flow.Like this,,, medicinal liquid is stored in the rubber-like elastica 11, repeats aforesaid action just with similarly aforementioned if rubber-like elastica 11 inner liquid medicines have all flowed into human body.In addition, entry needle 31 thrusts before the human body, for taking out the air in the rubber-like elastica 11, as long as protection housing 1 is vertically placed lid 5 one sides, opens valve 23, gets final product till needle point flows out medicinal liquid.

According to the above embodiments; because 11 seasonings of rubber-like elastica are arrived in the protection housing 1; simultaneously; on the lid 5 of protection housing 1, be provided with the ostium 19 that medicinal liquid injected in the rubber-like elastica 11 and the effusive tap hole 18 of rubber-like elastica 11 inner liquid medicines; thereby the protection housing 1 cylindrical shell 2 sides also can not establish these ostiums 19 and tap hole 18; if make cylindrical shell 2 sides down, then easy to store in pocket etc., be easy to carry.Even be stored in when bag interior,, also can from bag, do not fall if be clipped on the bag with clamp 51.And,, can inject the medicinal liquid limit constantly in the additional injection of the medicinal liquid rubber-like elastica 11 in the limit owing to have ostium 19 and tap hole 18.

In addition, because of protection housing 1 is made of cylindrical shell 2 and lid 5, so assemble easily, decompose.And, when the two is assembled, because conjugate foramen 3 engages both difficult drop-offs, the safety in the time of guaranteeing to use with projection 6.

In addition, because the tap hole 18 of ostium 19 is arranged on the lid 5 with being in the shape of the letter V shape, so, also can carry out to fault-free injection, the supply of medicinal liquid, thereby can make the device integral miniaturization even with these ostiums 19 and tap hole 18 adjacent configurations.That is, as shown in figure 10,,, can carry out to fault-free injection, the supply of medicinal liquid because of bobbin 41 and three-way valve 20 are not interfered even bobbin 41 is inserted in the valve cylinder 15 of check-valves 13.And, owing to catch the cervical region of these ostiums 19 and tap hole 18 to carry out the implant operation of medicinal liquid, so operate easily.

In addition, because aforementioned ostium 19 on the lid 5 and tap hole 18 are the setting of Y word shape with medicinal liquid ingress pipe 7, rubber-like elastica 11 is collapsible to be clung on the outer surface of medicinal liquid ingress pipe 7, thereby can make the residual amount of supplying with when finishing of medicinal liquid less.And the opening of rubber-like elastica 11 is by 12 fastening maintenances of tubulose elastic webbing, thereby does not worry that medicinal liquid can spill.

At this moment, allow the medicinal liquid inflow and stop effusive check-valves 13 because ostium 19 is provided with, can be stored in the rubber-like elastica 11 through check-valves 13 medicinal liquids, the outflows of medicinal liquid from ostium 19 that are stored in the rubber-like elastica 11 then are prevented from, thereby can easily carry out the operation of medicinal liquid when injecting.Moreover because the structure of check-valves 13 is, strengthening part 15A is the inside of the valve cylinder 15 of X shape built in being pressed into ostium 19, thus the distortion of valve cylinder 15 can prevent to be pressed into the time.

In addition owing to be provided with the cover piece 17 that covers check-valves 13 openings, except from ostium 19 feed fluids the time, the opening of check-valves 13 is covered with by cover piece 17, has prevented the intrusion of foreign body.And, cover piece 17 is by engaging and remaining on the stator 62 on the lid 5 and the cover plate 64 linked on this stator 62 through banded hinge 63 constitutes, so effect by banded hinge 63, when opening cover plate 64, this cover plate 64 leaves the opening of check-valves 13, and, can just in time cover the opening of check-valves 13 in the time of covering cover plate 64.

In addition, the medicinal liquid in the rubber-like elastica 11 can be confessed from managing 24 by the three-way valve 20 that links to each other with tap hole 18, thereby can easily operate when medicinal liquid is supplied with.

In addition; the section configuration of cylindrical shell 2 is oval; rubber-like elastica 11 expands because of medicinal liquid injects, lacking in the time of making it be circle than the section configuration of protecting housing 1 with the contacted contact area of cylindrical shell 2 inwalls, and can guarantee to protect flowing of housing 1 interior air.Thereby correctly sustainable supply liquid simultaneously, does not limit the installation site of passage 9 yet.And,,, be easy to handle because of not falling down even when protection housing 1 tilts.Much less, even rubber-like elastica 11 is damaged,, also can prevent the medicinal liquid outflow because of rubber-like elastica 11 is sealed in the protection housing 1.And in liquid medicine injection apparatus in the past, because the section configuration of protection housing is circular, when placing the inclination place, easily roll down, must be noted during operation.

In addition, on lid 3, be connected and fixed the spiral spring 10 that extends with the expansion of rubber-like elastica 11, simultaneously, periphery at cylindrical shell 2 is provided with scale 4, thereby, can correctly hold the amount of storage that is stored in the medicinal liquid in the rubber-like elastica 11 according to the relation of spring 10 extended positions and scale 4.And the contact area with protection housing 1 when the effect of spring 10 also can make rubber-like elastica 11 expand reduces, and the rubber-like elastica be because of also shrinking really, thereby the residual amount of medicinal liquid when supplying with end can be less.

As the flow-control means, different with the short tube that round hole was arranged in the past, because of the thermoplastic resin pipe 24,27 of long size, thereby, can critically control flow by setting hole shape, pipe range arbitrarily with special-shaped perforate 24A-24E.Conduit is when the round hole pipe that uses in the past, if medicinal liquid that the dust bigger than its internal diameter size is suspending or the medicinal liquid that easily solidifies, can clogging inlet makes the medicinal liquid can not be mobile fully, relative therewith, in the present embodiment, because used the pipe 24 of specific special-shaped hole shape, can all do not clogged by dust on the long limit of pipe special-shaped perforate 24A～24E of 24.Thereby, even foreign body, coagulums such as dust are arranged in the medicinal liquid, compare with round hole pipe in the past, also can prevent the obstruction of perforate 24A～24E effectively.

Moreover, conduit adopts under the situation of round hole pipe in the past, and because of the effect of horizontal patient's body weight, pipe can be crooked, stop up, but use the special-shaped tube having holes 24 of present embodiment, 27, even bending is very serious, body weight is very heavy, can not stop up yet, can guarantee safety, at the medical field of paying attention to safety, it is very important having the liquid medicine injection apparatus that does not take place to stop up.

And in the present embodiment, pipe 24 has the structure of double as conduit kinetic energy and flow regulating function, with conduit is compared with the combined structure of pipe and flow-control means in the past, can make simple in structure.

In addition, when in the past rustless steel tubule, glass tubule double as catheter functions and flow control function are used, or it is broken, or bending, existing must careful operation and be difficult to problem such as operation, and in an embodiment, owing to be limited to the pipe of making by thermoplastic resin 24,27, thereby can easily generate the special-shaped perforate 24A～24E of given shape, and easy operating, with trace stream adjustment and catheter functions.

In the present embodiment, rubber-like elastica 11 and pipe 24 as the flow-control means are members independently respectively, so by selecting to change the different special-shaped hole shapes and the pipe 24 of length, can easily change flow and scalable tiny flow quantity needs.

The present invention is not limited to previous embodiment, for the improvement in the scope that realizes the object of the invention, change etc. include in the present invention.

In the above-described embodiments, the section configuration of the cylindrical shell 2 of protection housing 1 is oval-shaped, but is not limited thereto.For example, also can be the above polygon of triangle, form projection etc. at interval with given angle on the inner peripheral surface of circular port, the section of inner peripheral surface shape except circle of protection housing 1 etc. all can.In addition, the shape of protection housing 1 peripheral part also is not limited to ellipse.

In the above-described embodiments, ostium 19 and tap hole 18 adjacent ground connection are arranged to the V font, but are not that the V font also is fine.For example, as with ostium 19 and tap hole 18 in abutting connection with being provided with, the angle that ostium 19 and tap hole 18 are constituted can be in the scope that 0 (parallel)-180 are spent.Particularly in scope the best of 0-90 degree.In addition, in the above-described embodiments, tap hole 18 links to each other with pipe 24 through three-way valve 20, but is not limited to three-way valve 20, and one-way on-off valve also is feasible.

In the above-described embodiments, on cylindrical shell 2, form conjugate foramen 3, and on lid 5, form the projection 6 that engages with conjugate foramen 3, otherwise but also be feasible.That is, form projection 6 on cylindrical shell 2, it also is feasible forming conjugate foramen 3 on lid 5.

In addition, the present invention, also can be used for biologies such as animal, fish are carried out the injection of medicinal liquid, nutrient outside medical widely medicinal liquid injection device such as urinary system usefulness, obstetrics and gynecology department uses except can be as vein usefulness.

In addition, also can be used for supplying with water, nutrient (liquid), medicinal liquid (insect protected liquid) etc. to minimum plant.For example, in vegetable or flowers and trees cultivation, when needing trace to supply with water or nutrient (liquid) to wait, only will manage 24 front end or be contained in the pin of managing 24 front ends and imbed in these plants soil all around just passable.In this case, even pipe 24 is stepped on bending, the perforate of pipe 24 can not be plugged yet, thereby the liquid conveying can not stop.In addition, inject at medicinal liquid under the situation of trees, can adopt suitable means will protect housing 1 to be hung on the trees, simultaneously, in the pin insertion trees with pipe 24 front ends.In this case, be not limited to liquid and from the protection housing 1 that plays, flow out downwards, also medicinal liquid can be injected the top position higher than protection housing 1.

In addition, also can be used in corf trace and supply with medicinal liquid, bait (liquid) or pasture and water such as antibiont with nutrients (liquid) etc.In this case, the front end of pipe 24 need not be adorned pin etc., only needs that its front end is put into tank and just can.

The present invention can provide a kind of fluid Supplying apparatus, not only collection, easy to carry, and can replenish injection liquid in sustainable supply liquid limit, limit, in addition, good operability can continue feed fluid correctly, simultaneously, does not also limit the installation site of passage.

Claims (12)

1, a kind of fluid Supplying apparatus; have the protection housing, deposit in the protection housing and its inner tubular rubber elastic-like film and feed tube for liquid that has liquid; under the effect of rubber-like elastica contractility; make the liquid output that is concealed in the described rubber-like elastica by described feed tube for liquid, it is characterized in that:

On described protection housing, be provided with adjacent liquid inflow port and liquid outflow port; described liquid inflow port is used for liquid is injected in the described rubber-like elastica, and the liquid that liquid outflow port is used for depositing in the described rubber-like elastica flows to described feed tube for liquid.

2, according to the described fluid Supplying apparatus of claim 1; it is characterized in that: described protection housing is by the cylindrical shell of band bottom tube-like, constitute with the lid of the opening tabling of this cylindrical shell, the setting that is in the shape of the letter V of described liquid inflow port on the described lid and liquid outflow port.

According to the described fluid Supplying apparatus of claim 2, it is characterized in that 3, a side of described cylindrical shell and lid fitting portion is provided with projection, and is provided with the conjugate foramen that engages with described projection on the opposing party.

4, according to claim 2 or 3 described fluid Supplying apparatus, it is characterized in that: described liquid inflow port on the described lid and liquid outflow port and liquid ingress pipe are the setting of Y font, the liquid ingress pipe insert in the described rubber-like elastica and it have be substantially equal to the rubber-like elastica when shrinking internal diameter and the external diameter and the length of length, ingress pipe is inner simultaneously is connected with described liquid inflow port and liquid outflow port and the slit that is communicated with inside and outside it is arranged.

According to the described fluid Supplying apparatus of claim 4, it is characterized in that 5, the rubber-like elastica of band bottom tube-like in embedding on the described liquid ingress pipe, the opening cause tubulose elastic webbing of this rubber-like elastica maintains.

6, according to the arbitrary described fluid Supplying apparatus of claim 2-5, it is characterized in that, on described liquid inflow port, be provided with the described liquid inflow of permission and stop effusive check-valves.

According to the described fluid Supplying apparatus of claim 6, it is characterized in that 7, described check-valves is made of valve cylinder, strengthening part and valve rod; Valve cylinder be both ends open tubular and the distolateral inside of one the valve cylinder of valve seat is arranged; Strengthening part is striden frame in another distolateral inside of this valve cylinder, valve rod leaves in the described valve cylinder, it is relative to flowing into from the liquid of described valve cylinder one distolateral opening part to moving towards the direction of lifting off a seat, and relatively from the outflow of described valve cylinder other end side opening liquid then court move with the contacted direction of valve seat.

8, according to the described fluid Supplying apparatus of claim 7, it is characterized in that, be provided with the cover piece that covers described check valve openings end, this cover piece by engage and remain on the described lid stator with by banded hinge therewith stator be connected and the cover plate that is embedded in an end opening end of described check-valves valve cylinder dismantledly constitutes.

According to arbitrary described fluid Supplying apparatus among the claim 2-8, it is characterized in that 9, the section configuration of described cylindrical shell is an elliptical shape.

According to the described fluid Supplying apparatus of claim 9, it is characterized in that 10, in the periphery wall of described cylindrical shell, the periphery wall of major diameter direction is provided with clamp.

11, according to the arbitrary described fluid Supplying apparatus of claim 2-10, it is characterized in that, be connected and fixed spiral helicine spring on the described lid, it is arranged on the periphery of described rubber-like springform and along with the expansion of rubber-like elastica extends, simultaneously, be provided with scale on the periphery of described cylindrical shell, it is used to represent deposit in from the leading section position of described spring the amount of liquid in the rubber-like elastica.

12, according to the fluid Supplying apparatus of claim 1-11 described in each, it is characterized in that: described feed tube for liquid is odd-shaped by section configuration and thermoplastic resin pipe with specific length constitutes.

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