WO2004101061A1 - Dispositif de commutation a passages d'ecoulement - Google Patents

Dispositif de commutation a passages d'ecoulement Download PDF

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Publication number
WO2004101061A1
WO2004101061A1 PCT/JP2003/006001 JP0306001W WO2004101061A1 WO 2004101061 A1 WO2004101061 A1 WO 2004101061A1 JP 0306001 W JP0306001 W JP 0306001W WO 2004101061 A1 WO2004101061 A1 WO 2004101061A1
Authority
WO
WIPO (PCT)
Prior art keywords
branch
flow path
flow
shaft
switching device
Prior art date
Application number
PCT/JP2003/006001
Other languages
English (en)
Japanese (ja)
Inventor
Takehiko Yuki
Raita Uematsu
Original Assignee
Jms Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jms Co., Ltd. filed Critical Jms Co., Ltd.
Priority to JP2004564069A priority Critical patent/JP3719443B2/ja
Priority to PCT/JP2003/006001 priority patent/WO2004101061A1/fr
Priority to AU2003234803A priority patent/AU2003234803A1/en
Priority to TW092122100A priority patent/TWI289067B/zh
Publication of WO2004101061A1 publication Critical patent/WO2004101061A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/223—Multiway valves

Definitions

  • the present invention relates to a technique for promoting replacement of a fluid present inside one branch portion in a medical flow channel switching device having a plurality of branch portions.
  • a flow path switching device that is arranged between an infusion source and the patient and switches the flow path.
  • a flow path switching device a stopcock provided with a plurality of branch portions serving as a fluid flow channel and a switching portion for switching a flow channel connecting the respective branch portions is known.
  • a three-way stopcock having three branch portions is known. Stopcocks are widely used.
  • FIG. 5 is a cross-sectional view of a three-way cock according to the first related art.
  • the three-way stopcock includes a main body 800 and a switching section 8200, and the switching section 8200 is rotatably inserted into the main body 800.
  • the main body section 800 is composed of two first branch sections 80 1 and second branch sections 802 opposed to each other by 180 °, and these first branch sections 80 1 and second branch sections 80 2, respectively.
  • a tube (not shown) connected to the infusion source is connected to the first branch portion 801, and a tube (not shown) connected to the patient is connected to the second branch portion 802.
  • the third branch portion 803 is for mixing a chemical solution into the three-way cock from the outside by a luer or the like, and is provided with a branch tube 804, a diaphragm 805, a cap 806, and a branch tube 8
  • the opening of No. 04 is sealed by a cap 806 via a diaphragm 805.
  • a slit 805a is provided in the diaphragm 805, and a hole 806a is formed in a portion of the cap 806 facing the slit 805a.
  • the chemical is filled in the region A by inserting and injecting the tip of the lure filled therein through the hole 806a and the slit 805a into the inside of the branch pipe 804.
  • the switching section 820 has a T-shaped crossing flow for connecting the branch sections 801 to 803.
  • a path 820a is formed, and a flow path connecting the branching sections 801 to 803 can be changed by rotating the switching section 820.
  • the switching unit 8200 when the switching unit 8200 is arranged at a position connecting the three branching units 8101, 8102, 8103 as shown in FIG. 5, the infusion supplied from the infusion source is Since the liquid flows substantially linearly from the first branch portion 8001 to the second branch portion 802, the chemical solution injected into the region A in the third branch portion 803 is hardly mixed with the flowing infusion solution, It is easy to remain. In such cases, it is not possible to administer the exact amount of the drug solution to the patient, and if this drug solution is of a high calorie suitable for bacterial culture, in region A, the drug solution becomes a hotbed where stagnation and bacteria grow. could be.
  • FIG. 6 is a sectional view of a three-way stopcock according to a second conventional technique.
  • an arc-groove-shaped flow path 9200a is formed along the circumferential surface of the switching section 9200, and further, a third branch section is formed.
  • the region A formed in the third branch portion 903 as in the first related art is extremely small because the region 93 is formed short.
  • the tip of the lure S is inserted through the slit 905 a of the diaphragm 905 and a chemical solution is supplied therefrom, the chemical solution is directly supplied to the flow path 920 a. Therefore, the chemical liquid hardly stays in the area A, and even if the chemical liquid stays slightly, the infusion flowing from the first branch part 901 comes into contact with the chemical liquid mixed into the area A in the third branch part 903. After that, the chemical solution filled in the region A of the third branch portion 903 becomes easier to be replaced as compared with the above-described first prior art, and the bacteria grow. Can be suppressed.
  • the injection of the chemical solution from the lure S attached to the three-way cock may be temporarily interrupted, and the switching section 920 may be rotated to switch the flow path.
  • the switching unit 920 may be rotated while the lure S is inserted in order to save the trouble of removing the lure S each time.
  • the region A of the third branch portion 93 is formed extremely small, when the switching portion 9220 is rotated with the lure S inserted, the lure S The leading end of the switch catches the flow path 920a of the switching section 920 and cannot rotate the switching section 920.
  • the third branch portion 903 may be lengthened to make the area A wider, and the end of the lure S may be prevented from contacting the switching portion 9200. Conceivable.
  • the area A at the tip angle of the area A is likely to be stagnant and is not easily replaced by the infusion flowing from the first branch portion 91.
  • the replacement of the chemical may be partially delayed.
  • the replacement of the drug solution tends to be delayed. If the replacement of the co-injected drug solution is delayed in this way, it is necessary because the possibility of bacterial growth is increased and the co-injected drug solution from the third branch 903 may remain in region A. It is also likely that the patient will not receive an amount of drug.
  • the flow path 9200a is formed along the circumferential surface of the switching section 9200, and the switching section 9200 is rotated to rotate the three-way stopcock.
  • the branches 91 to 903 are closed at the same time, it is considered that they cannot be closed unless they are rotated by 135 ° or 222 ° from the positions shown in FIGS.
  • an object of the present invention is to provide a flow path switching device suitable for actual use in a medical field.
  • a flow path switching device includes a device main body having a configuration in which three branch paths are branched and extended from a hollow chamber, and a sliding body inserted into the hollow chamber.
  • a fluid switching device that slides the sliding body in the device main body to simultaneously or alternatively switch the fluid flowing in from one branch to the other two branches and out of the two branches.
  • a first flow path and a second flow path which are substantially separate paths, are respectively formed at positions that communicate with the third branch path, and the hollow chamber side opening of the third branch path is , And is characterized by being constituted by two independent through holes corresponding to the first and second flow paths.
  • the first and second flow paths and the third branch are not opened.
  • Flow of fluid such as an infusion through one through-hole between the first and second passages disrupts the flow of the fluid therethrough, and the flow velocity of the infusion that enters the third branch from the first flow path does not increase.
  • stagnation may occur in the third branch road.
  • the infusion flows vigorously into the third branch portion, so that the stirring inside the third branch channel is promoted more than before, and the replacement speed of the chemical solution staying there can be improved. Also, if there are only two through holes, the roles of the inlet for the liquid to enter the inside of the third branch from the first flow path and the exit for the liquid to enter the second flow path from the inside of the third branch are shared.
  • the flow velocity can be increased with the flow of the fluid inside the third branch channel in a fixed direction, and the replacement speed can be further improved.
  • the fluid since the fluid always flows through the first flow path and the second flow path also in the sliding body, stagnation of the fluid inside the sliding body is suppressed. In this way, the stagnation of fluid inside and outside the sliding body is suppressed, thus suppressing the growth of bacteria.
  • it is possible to administer an accurate amount of a drug solution to a patient, and it is possible to provide a flow path switching device suitable for practical use at a medical site.
  • the fluid can be prevented from staying inside and outside the sliding body, there is no need to insert a luer or the like into the sliding body to inject a chemical solution as in the second related art. Therefore, the flow path can be switched even while the lure is inserted, and the flow path switching device according to the present application is more suitable for actual use in a medical field than before.
  • the two independent through holes face the opening of the first flow path. If the second through-hole is formed at a position facing the opening of the second flow path, the flow velocity of the fluid in the first and second through-holes can be further improved. It is considered that the replacement speed inside the third branch road can be further improved.
  • the hollow chamber is a cylindrical shaft holding portion
  • the main body of the device is a first branch portion having a branch path formed on the outer periphery of the shaft holding portion.
  • the flow path switching device is arranged such that the first branch portion and the second branch portion are opposed to each other on the outer periphery of the shaft portion holding portion, and the third branch portion is the first branch portion and the second branch portion on the outer periphery of the shaft portion holding portion.
  • the third branch portion is formed of a branch pipe erected on the outer periphery of the shaft portion holding part and an elastic body fixed to the distal end of the branch pipe while being pressed, and formed with a slit capable of communicating with the inside of the branch pipe from the outside. If a partition wall is provided, the medicinal solution can be co-injected using a luer, so that a sharp needle is not required, and erroneous puncture by an operator can be prevented.
  • the opening of the first flow passage on the third branch portion side and the second flow passage A configuration in which a groove connecting the opening is formed is preferable.
  • the first and second flow paths may be formed in an L-shape when viewed in plan.
  • FIG. 1 is a developed perspective view of a three-way cock.
  • FIG. 2A is a cross-sectional view of the three-way cock according to the present embodiment
  • FIG. 2B is a cross-sectional view of the three-way cock when a single hole is provided in the main body.
  • FIG. 3 is a cross-sectional view of a three-way cock according to a modification of the present embodiment.
  • FIG. 4 is a sectional view of a three-way cock according to a modification of the present embodiment.
  • FIG. 5 is a cross-sectional view of a three-way cock according to the first related art.
  • FIG. 6 is a sectional view of a three-way stopcock according to a second conventional technique.
  • FIG. 7 is a sectional view of a three-way cock according to a modification of the second conventional technique.
  • FIG. 1 is a developed perspective view of a three-way cock according to the present embodiment.
  • the three-way stopcock includes a switching unit 1 and a main unit 2, and a shaft 10 of the switching unit 1 is inserted into a shaft holding unit 20 of the main unit 2 and rotatably held.
  • a shaft 10 of the switching unit 1 is inserted into a shaft holding unit 20 of the main unit 2 and rotatably held.
  • the configuration of the main body 2 into which the switching unit 1 is inserted will be described first.
  • the main body 2 includes a hollow cylindrical shaft holding section 20 that holds the shaft 10 of the switching section 1, and a first branch section 21 that communicates with the shaft section holding section 20 and forms a branch path that forms a flow path in three directions. , A second branch 22, and a third branch 23.
  • the shaft holding portion 20 is a hollow chamber in which an insertion hole 20 a for inserting the columnar shaft 10 is formed, and an inner periphery of the insertion hole 20 a is provided.
  • An engaging projection (not shown) that engages with the engaging groove 12 of the shaft 10 is formed in a circumferential shape.
  • the first branch portion 21 and the second branch portion 22 are formed of a cylindrical pipe having a flow path, are disposed opposite to each other on the outer peripheral surface of the shaft portion holding portion 20, and are formed in the shaft portion holding portion 20. ⁇ Stand up so as to communicate with the inlet hole 20a.
  • the first branch portion 21 has an An infusion tube connected to the liquid source is connected, and an infusion tube (not shown) connected to a patient is connected to the second branch 22.
  • the third branch section 23 includes a branch pipe 230 serving as a flow path, a cap holding section 231, a diaphragm 2 32, and a cap 2 33, for mixing and injecting a chemical solution from outside. It becomes a fork.
  • the branch pipe 230 is erected on the shaft holder 20 at an angle of 90 ° with the first branch 21 and the second branch 22 on the outer peripheral surface of the shaft holder 20. I have.
  • the inside of the shaft holding portion 20 in which the branch pipe 230 is provided that is, the opening of the branch pipe 230 on the shaft holding portion 20 side.
  • the flow end 13 1 b of the first flow passage 13 1 Through-holes 200a and 200b are formed at positions facing the flow path ends 132a of the flow paths 132 so as to correspond thereto.
  • the inside of the branch pipe 230 communicates with the inside of the shaft holding section 20.
  • the branch sections 21, 22, and 23 can communicate with each other. it can.
  • the cap holding portion 231 is erected on the outer peripheral surface of the shaft portion holding portion 20 so as to surround the branch pipe 230, and a pair of engagement projections 231 0 (for holding the cap 233) is provided. Only one is shown in the figure.)
  • the diaphragm 232 is made of, for example, disc-shaped silicon rubber which is an elastic body having excellent chemical resistance, and a slit 233 a cut in the thickness direction is formed at the center thereof. ing.
  • the cap 2 33 has a pair of engaging portions 2 330 (only one is shown in FIG. 1) in which the engaging hole 2 330 a is formed, and the cap 2 33 is provided with the diaphragm 2 32 interposed therebetween.
  • the engaging portion 233 is engaged with the engaging protrusion 231 of the cap holding portion 231 to be fixed to the cap holding portion 231.
  • the diaphragm 2 32 functions as a sealing material, and the inside of the branch pipe 230 maintains the airtightness with the outside of the main body 2.
  • the cap 2 33 presses the diaphragm 2 32, pressure is applied to the opposing surfaces of the slit 2 32 a, and the slit is closed.
  • the cap 2 3 3 is provided with a guide hole 2 3 3 a that faces the slit 2 3 2 a of the diaphragm 2 3 2 and guides the tip of the lure, and the lure is guided through the guide hole 2 3 3 a.
  • the branch tube is passed through the slit 23a in the diaphragm 23a. It is guided inside 230, and a chemical solution can be co-injected there.
  • the switching portion 1 has a cylindrical shaft portion 10 and a cross-shaped handle portion 1 formed integrally with an end of the shaft portion 10 for rotating the shaft portion 10 around its central axis. 1 and.
  • the shaft portion 10 has an engaging groove 12 formed circumferentially at a position on the outer peripheral surface thereof away from the handle portion 11, and is formed in the shaft portion holding portion 20 of the main body 2 (not shown). Engagement with the engagement projection allows the main body 2 to be rotatably fixed.
  • the shaft 10 communicates with the first branch 21, the second branch 22, and the third branch 23 of the main body 2, and a flow for passing a fluid such as an infusion solution or a drug solution.
  • Road 13 is formed.
  • the flow path 13 includes a first flow path 13 0 and a second flow path 13 2 bent at a right angle, and a linear third flow path 13 1, and the third flow path 13 1
  • the first flow path 130 and the second flow path 132 are connected to form one flow path.
  • the first flow path 130 is formed when the shaft section 10 is rotated so that the flow path 13 is located at a position where all the branch sections 21, 22, and 23 communicate with each other.
  • the second flow path 13 2 is formed when the shaft 10 is rotated so that the flow path 13 is located at a position where all the branches 21, 22 and 23 are communicated.
  • 3 is a flow passage for communicating with the second branch portion 2 2, and has an L-shape in plan view like the first flow passage 130, and its bent portion is the central axis of the shaft portion 10. 1 3
  • the third channel 13 1 rotates the switching unit 1 to a position 180 ° inverted from the position shown in FIG. Even if this is done, the first branch part 21 and the second branch part 22 can be communicated.
  • the flow path end 130 a of the first flow path 130 and the flow path end 132 b of the second flow path 132 are opposed in a plan view on the outer peripheral surface of the shaft portion 10.
  • the flow path end 13 Ob in the first flow path 130 and the flow path end 13 2a in the second flow path 13 2 are arranged side by side up and down, and viewed in plan. Sometimes they overlap. That is, when the switching section 1 is viewed in a plan view, the flow path 13 is arranged in a T-shape as in the switching section described in the first conventional technique (see FIG. 2).
  • the channel end 130b enters the channel 131, and then the channel end 132a of the channel 13 enters the channel 132. It will flow out from the flow path end 1 3 2 b. Therefore, as long as the infusion is supplied from the infusion source, stagnation of the infusion and the like can be suppressed inside the flow path 13.
  • FIG. 2A is a cross-sectional view of a three-way cock according to the present embodiment
  • FIG. 2B is a cross-sectional view of a three-way cock according to a comparative example.
  • the three-way cock according to the present embodiment has the through holes 200 b, 200 a in the shaft holding portion 20, and the first flow path 130 0. Are provided independently at positions opposed to the flow path end 130b of the second flow path 13b and the flow path end 132a of the second flow path 132.
  • a through hole 200 c communicating the first flow path 130, the second flow path 132, and the branch pipe 230 is formed.
  • the area is larger than the sum of the cross-sectional area of the first flow path 130 and the cross-sectional area of the second flow path 132. Therefore, in this case, the infusate flowing out from the flow path end 130b into the through hole 200c flows into the branch pipe 230 while diffusing. Also, the infusion flows from the branch pipe 230 to the flow path end 132a via the through hole 200c, so that the infusion flows in the through hole 200c while flowing in, and A reverse flow is formed.
  • the pressure applied to the infusion at the through-hole is lower than in Fig. 2 (a). It becomes. Therefore, it is considered that the infusion liquid flowing out from the flow path end 130b is more comfortable than the three-way cock according to the present embodiment and flows into the branch pipe 230. Therefore, there is a possibility that the substitution does not partially proceed inside the branch pipe 230.
  • each of the through holes has a unique role of inflow and outflow of a fluid. Fluid flow is less likely to be disturbed in the through holes. As a result, the velocity of the fluid passing through each through hole can be improved as compared with the case where there are only one through hole. Therefore, since the infusion liquid flows vigorously into the branch pipe 230, replacement of the co-injected drug solution is promoted.
  • the positions where the through holes 200a and 200b face the flow path end 13 ⁇ b in the first flow path 130 and the flow path end 13 32a in the second flow path 132 In this case, the flow of the fluid is less likely to be disturbed and the pressure loss is reduced as compared with the case where both are displaced, so that the velocity of the fluid passing through the through holes 200 a and 200 b is It is further accelerated.
  • the area of the through holes 200a and 200b should be approximately the same as the flow area of each flow path 131, 133 and the opening area of the end 13lb, 13a. Is preferred.
  • each of the through holes 200a and 200b is substantially the same as that of the flow path ends 132a and 130b, the pressure applied to the infusion is further increased, and the infusion is increased. It will pass through the through hole 200b vigorously and flow into the inside of the branch pipe 230.
  • the drug solution injected into the branch pipe 230 by the lure S is mixed and replaced by the infusion fluid that flows vigorously through the through-hole 200b, and thereafter, the through-hole 2 It will flow out to the channel end 1 32 a through 00 a.
  • the two through-holes 200a and 200b are independently provided, so that the infusion can be rushed into the inside of the branch pipe 230.
  • the role of the inlet and outlet of the infusion can be assigned to the two through holes 200a and 200b, so that the flow can be rectified into the branch pipe 230 into a flow in a certain direction. It is thought that the flow rate in 230 can be increased to promote the displacement.
  • the flow path 13 in the shaft 10 is configured so that the infusion always flows through the entire flow path. Therefore, as in the first related art, the flow path in the switching section is infused into the flow path 13 in the switching section. Also, there is no need to worry about the chemical solution remaining.
  • the drug solution has a high calorie and is suitable for a bacterial culture medium, the drug solution is quickly replaced and the possibility of stagnation in the third branch 23 is lower than before, so that the Proliferation can be suppressed. Further, since the retention of the drug solution in the third branch portion 23 is reduced, a more accurate amount of the drug solution can be administered to the patient as compared with each conventional technique.
  • the flow path end 130b of the first flow path 130 and the flow path end 132a of the second flow path 132 are formed at positions recessed from the outer periphery of the shaft portion 10, and the flow path 130b
  • the third flow path 131 connects the road end 132a
  • the flow path ends 130b and 132a are formed at positions along the outer periphery of the shaft section 10 as shown in FIG.
  • the flow path 131 may be eliminated, and the third flow path 131 may be provided instead on the inner circumference of the shaft portion holding section 20 on the side opposite to the third branch section 23.
  • the infusion flows from the flow end 130 b of the shaft 10 to the flow end 131 a through the flow path 131. Because it flows, you can work using the same operation method as before. Further, since the flow path ends 130b, 132 & and the through holes 200013, 200a can directly communicate with each other without passing through the flow path 131, the infusion is diffused in the flow path 131 as in the above embodiment. As a result, the infusion can be made to flow vigorously into the branch pipe 230, and the replacement speed of the drug solution can be further improved as compared with the above embodiment.
  • third branch portion 23 may be simply an extension of the branch pipe 230, or may be a known co-injection port used in a flow path switching device.
  • the three-way cock has been described as an example.
  • a four-way cock having a fourth branch portion 24 provided at a position facing the third branch portion 23 in the shaft portion holding portion 20 can also be used.
  • the present invention can be applied to a flow path switching device having five or more branch portions.
  • a liquid has been described as an example of the fluid that passes through the flow path.
  • the same effects as those of the present invention can be obtained when passing a gas and a mixture thereof in addition to the liquid. it can.
  • the second flow path 1332 is arranged on the first flow path 130 in the shaft portion 10.
  • the first flow path 13 The vertical relationship with the two flow channels 1 32 may be reversed.
  • the through holes 200 a, 2 b are provided at positions opposed to the flow path ends 130 b, 132 in the first flow path 130 and the second flow path 132. Although 0 0 b was provided, if the through holes 200 a and 200 b are provided corresponding to the number of the flow path ends 13 O b and 13 32 a, the third branch portion The replacement efficiency of the solution in 23 may decrease, but it is not necessary to face each other.
  • the first flow path 130 and the second flow path 13 2 have an L-shape in plan view.
  • the present invention is not limited to this. If the positions are the same, the shape may be linear or three-dimensionally bent.
  • the first flow path 130 and the second flow path 132 in the shaft portion 10 are formed one by one.
  • the present invention is not limited to this. You may make it form from two or more.
  • the first flow path 130 and the second flow path 13 2 are formed completely independently and as separate paths. As long as the 30 and the second flow path 13 form substantially separate paths, a part of each flow path may slightly merge. INDUSTRIAL APPLICABILITY
  • the channel switching device according to the present invention is particularly effective for a medical channel switching device.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention a trait à un dispositif de commutation à passages d'écoulement, qui permet d'augmenter la vitesse de substitution de substances chimiques mélangées remplissante des parties de branchement, un premier passage d'écoulement, destiné à relier la première partie de branchement à la troisième partie de branchement du corps d'un dispositif, et un second passage d'écoulement, destiné à relier la deuxième partie de branchement à la troisième partie de branchement, étant placés dans la partie arbre d'une partie de commutation, de façon que, lorsque la partie de commutation permet à toutes les parties de branchement de communiquer les unes avec les autres, le fluide s'écoule toujours dans la partie de commutation, ce qui permet d'éliminer l'accumulation du fluide dans la partie de commutation. Deux premier et second trous débouchants pouvant communiquer avec l'intérieur de la troisième partie de branchement sont formés, indépendamment l'un de l'autre, dans une partie de maintien d'arbre, à des positions opposées à l'extrémité du premier passage d'écoulement et à l'extrémité du second passage d'écoulement, lorsque la partie de commutation est tournée dans cette position. Ainsi, l'augmentation de la vitesse du fluide s'écoulant dans la troisième partie de branchement favorise la substitution des substances chimiques mélangées remplissant la troisième partie de branchement.
PCT/JP2003/006001 2003-05-14 2003-05-14 Dispositif de commutation a passages d'ecoulement WO2004101061A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004564069A JP3719443B2 (ja) 2003-05-14 2003-05-14 流路切換装置
PCT/JP2003/006001 WO2004101061A1 (fr) 2003-05-14 2003-05-14 Dispositif de commutation a passages d'ecoulement
AU2003234803A AU2003234803A1 (en) 2003-05-14 2003-05-14 Flow passage switching device
TW092122100A TWI289067B (en) 2003-05-14 2003-08-12 Flow path switching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2003/006001 WO2004101061A1 (fr) 2003-05-14 2003-05-14 Dispositif de commutation a passages d'ecoulement

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WO2004101061A1 true WO2004101061A1 (fr) 2004-11-25

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JP (1) JP3719443B2 (fr)
AU (1) AU2003234803A1 (fr)
TW (1) TWI289067B (fr)
WO (1) WO2004101061A1 (fr)

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JP2009183583A (ja) * 2008-02-08 2009-08-20 Top:Kk 三方活栓
EP2092950A3 (fr) * 2001-11-14 2009-09-02 JMS Co., Ltd. Robinet d'arrêt trifonctionnel, et ensemble de tubage de transfusion liquide ou ensemble de tubage de transfusion sanguine utilisant un robinet d'arrêt trifonctionnel
WO2011054678A1 (fr) * 2009-11-06 2011-05-12 Ulrich Gmbh & Co. Kg Elément de dérivation pour un système d'alimentation en fluide
US7963951B2 (en) 2007-02-09 2011-06-21 Tyco Healthcare Group Lp Medical valve device
EP2689797A1 (fr) * 2011-03-25 2014-01-29 Terumo Kabushiki Kaisha Robinet d'arrêt médical
US9913971B2 (en) 2012-09-28 2018-03-13 Terumo Kabushiki Kaisha Connector
JP2018509253A (ja) * 2015-03-26 2018-04-05 ベー．ブラウン メルスンゲン アクチェンゲゼルシャフト 医療用流体管路システムのための医療用流体制御装置
US10220199B2 (en) 2012-09-28 2019-03-05 Terumo Kabushiki Kaisha Valve body and connector including the same

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WO2014049811A1 (fr) * 2012-09-28 2014-04-03 テルモ株式会社 Connecteur

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JP2000350787A (ja) * 1999-04-09 2000-12-19 Top:Kk 三方活栓
EP1234596A1 (fr) * 1999-11-29 2002-08-28 Nippon Sherwood Medical Industries Ltd. Robinet medical

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Publication number Priority date Publication date Assignee Title
JP2000350787A (ja) * 1999-04-09 2000-12-19 Top:Kk 三方活栓
EP1234596A1 (fr) * 1999-11-29 2002-08-28 Nippon Sherwood Medical Industries Ltd. Robinet medical

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US9913971B2 (en) 2012-09-28 2018-03-13 Terumo Kabushiki Kaisha Connector
US10220199B2 (en) 2012-09-28 2019-03-05 Terumo Kabushiki Kaisha Valve body and connector including the same
JP2018509253A (ja) * 2015-03-26 2018-04-05 ベー．ブラウン メルスンゲン アクチェンゲゼルシャフト 医療用流体管路システムのための医療用流体制御装置

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TW200423983A (en) 2004-11-16
AU2003234803A1 (en) 2004-12-03
TWI289067B (en) 2007-11-01
JP3719443B2 (ja) 2005-11-24

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