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WO2016116843A1 - Double dispositif de soupape pour l'aspiration et l'injection de fluides - Google Patents

Double dispositif de soupape pour l'aspiration et l'injection de fluides Download PDF

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Publication number
WO2016116843A1
WO2016116843A1 PCT/IB2016/050212 IB2016050212W WO2016116843A1 WO 2016116843 A1 WO2016116843 A1 WO 2016116843A1 IB 2016050212 W IB2016050212 W IB 2016050212W WO 2016116843 A1 WO2016116843 A1 WO 2016116843A1
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WO
WIPO (PCT)
Prior art keywords
valve
luer
syringe
aspiration
injection
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2016/050212
Other languages
English (en)
Inventor
Adolf Victor D'SOUZA
Arafat Nasir KHAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2016116843A1 publication Critical patent/WO2016116843A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • A61M39/10—Tube connectors; Tube couplings
    • 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
    • A61M2039/0009—Assemblies therefor designed for particular applications, e.g. contrast or saline injection, suction or irrigation
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1077—Adapters, e.g. couplings adapting a connector to one or several other connectors
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1083—Tube connectors; Tube couplings having a plurality of female connectors, e.g. Luer connectors
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1088—Tube connectors; Tube couplings having a plurality of male connectors, e.g. Luer connectors
    • 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
    • A61M39/24—Check- or non-return valves
    • A61M2039/2473—Valve comprising a non-deformable, movable element, e.g. ball-valve, valve with movable stopper or reciprocating element
    • 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
    • A61M39/24—Check- or non-return valves

Definitions

  • the present disclosure relates to technical field of medical devices. More particularly, the disclosure pertains to a dual valve device that can be used both for injection and aspiration of fluids.
  • Prior art EP0075039A1 teaches a backflow check valve for use in IV administration sets wherein a flow control disc is located between the two hubs to permit flow in one direction, but to prevent flow in the other direction and wherein a disc abutment means is mounted on the male hub to prevent the disc from becoming dislodged and moving into the male hub flow passage.
  • Flow bypass paths are defined in the male hub element so that flow can bypass the flow control disc when fluid communication between the male and female hub flow passages is desired.
  • Prior art US4729401 teaches an aspiration assembly having dual co-axial check valves to provide a dual valve function during administration of fluids and additional liquids in medical environments.
  • Dual-valve systems are known in the art suffer from one or more disadvantages such as inability to hold both body and atmospheric pressure, inability to operate at high pressures, unsuitable for high viscosity fluids, sensitivity to temperature fluctuations on account of use of disk type diaphragm, requirement of multiple attachments for use, proliferation of parts and requirement of automation for assembly during manufacture, expensive to produce, unsuitable for use with needles etc.
  • the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term "about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable.
  • the present disclosure relates to a dual- valve device for aspiration and injection of fluids. It is to be appreciated that though various embodiments of the present disclosure have been explained with references to medical applications such as injection of medication or other fluids into a patient or aspiration of body fluids for tests or transfusion, the disclosed device can as well be used for other applications such as for transfer of fluids in household or industrial setups and all such applications are well within the scope of the present disclosure.
  • the disclosed dual-valve device can be implemented in a valve housing that can incorporate two or more luers, each configured with a one way valve that can be configured to allow movement of fluid in one or other direction, and block movement in opposite direction.
  • a luer is configured with a valve that allows fluid to move out of the luer while blocking in-flow, it functions as injection luer.
  • a luer is configured with a valve that allows fluid to move into the luer while blocking out-flow, it functions as aspiration luer.
  • the valve housing can incorporate further luers to function as syringe luers.
  • the valve housing can be multi-sided having multiple luers.
  • the valve body can be configured with four luers, two of which can be configured to house valves and the other two to hold a syringe.
  • the valve housing can be configured to have a syringe luer against each luer that houses valves. In an aspect, positioning of a syringe luer against each luer that houses valves enables operation of the disclosed dual valve device either in aspiration or injection mode by positioning a syringe appropriately.
  • valves of the disclosed dual valve device can be hemispherical valve or cylindrical valve, wherein cylindrical valve is much more sensitive than hemispherical valve and is designed for micro-sensitive pressure to hold both negative & positive pressures.
  • the hemispherical valve can be configured on aspiration luer, and cylindrical valve can be configured on injection luer.
  • both the valves can be of same type i.e. either cylindrical valve or hemispherical valve.
  • a dual-valve device for aspiration and injection of fluids can be used interchangeably in aspiration mode or injection mode simply by interchanging the position of syringe and end cap that closes the syringe port.
  • the present disclosure provides an automatic spring-return syringe that can be used for automatic aspiration of fluids.
  • a spring can be configured between syringe cylinder and syringe plunger such that syringe plunger can move in to the syringe cylinder when pressed against the spring force, however when the pressure to move the plunger in is removed, the spring can make plunger to move out resulting in aspiration.
  • the disclosed dual-valve device incorporates interchangeable parts reducing their variety and making their manufacture cost effective.
  • these parts can be made of materials that are compatible for in vivo and in vitro use and such materials can include thermoplastics, polycarbonates, co-polyesters, silicone, etc., and device for medical use can be compliant to USP and ISO 10993 standards.
  • parts and components of a dual-valve device for aspiration and injection of fluids for non-medical use can be manufactured from any material depending on where such device(s) are intended to be used.
  • dual valve device can include an aspiration luer with a first valve and an injection luer with a second valve, wherein the first valve allows fluid to move in from the aspiration luer, and wherein the second valve allows the fluid to move out from the injection luer.
  • the device can further include at least one syringe luer, wherein expansion of plunger of a syringe that is configured in the at least one syringe luer enables receiving of the fluid from the aspiration luer and injecting of the fluid through the injection luer.
  • Device of the present disclosure can further include a first syringe luer that is configured opposite to the aspiration luer, and a second syringe luer that is configured opposite to the injection luer, wherein the expansion of the plunger of the syringe can be enabled by means of a spring configured in the syringe along the plunger.
  • the first valve is a hemispherical valve assembly which includes a hemispherical valve.
  • the second valve is a cylindrical valve assembly, which includes a cylindrical valve.
  • the plunger of the syringe can be initially compressed to allow air in the syringe to flow out from the injection luer, and wherein expansion of the plunger can be done automatically by means of a spring configured in the syringe such that during expansion, the syringe receives the fluid from the aspiration luer and injects the fluid through the injection luer.
  • FIG. 1 illustrates an exemplary isometric view of dual-valve device for aspiration and injection of fluids in accordance with embodiments of the present disclosure.
  • FIG. 2A illustrates an exemplary exploded view of the dual-valve devicein accordance with embodiments of the present disclosure.
  • FIG. 2B illustrates an exemplary sectional view of assembled the dual-valve device in accordance with embodiments of the present disclosure.
  • FIG. 3A illustrates an exemplary sectional view of the dual-valve devicebeing used in injection mode in accordance with embodiments of the present disclosure.
  • FIG. 3B illustrates an exemplary sectional view of the dual-valve devicebeing used in aspiration mode in accordance with embodiments of the present disclosure.
  • the present invention relates to a dual -valve device for aspiration and injection of fluids. It is to be appreciated that though various embodiments of the present disclosure have been explained with references to medical applications such as injection of medication or other fluids into a patient or aspiration of body fluids for tests or transfusion, the disclosed device can as well be used for other applications such as for transfer of fluids in household or industrial setups and all such applications are well within the scope of the present disclosure.
  • the disclosed dual-valve device can be implemented in a valve housing that incorporates two or more luers each configured with a one way valve that can be configured to allow movement of fluid in one or other direction and block the movement in opposite direction.
  • a luer is configured with a valve that allows fluid to move out of the luer while blocking in-flow, it functions as injection luer.
  • a luer is configured with a valve that allows fluid to move in to the luer while blocking out-flow, it functions as aspiration luer.
  • valve housing can incorporate further luers to function as syringe luers.
  • valve housing can be multi-sided having multiple luers.
  • valve body is configured with four luers two of which are configured to house valves and other two to hold a syringe.
  • valve housing can be configured to have a syringe luer against each luer that houses valves.
  • each of the syringe luer can be configured such that it can be closed by an end cap when not in use.
  • positioning of a syringe luer against each aspiration/injection luer enables operation of disclosed dual valve device either in aspiration or injection mode by positioning a syringe appropriately.
  • the disclosed dual-valve device can be used interchangeably in aspiration mode or injection mode simply by interchanging the position for syringe and end cap that closes the syringe port.
  • valves of the disclosed dual valve device can be hemispherical valve or cylindrical valve. Cylindrical valve is much more sensitive than hemispherical valve and is designed for micro-sensitive pressure, to hold both negative & positive pressures.
  • the hemispherical valve can be configured on aspiration luer and cylindrical valve can be configured on injection luer.
  • either a hemisphere or a cylindrical valve can be provided in both the luers i.e. in aspiration luer and injection luer.
  • there can be mixed valve in the device i.e. a hemispherical valve in one luer and cylindrical valve in the other luer.
  • the disclosed device can have multiple valves instead of only two described above with a hemispherical valve on each aspiration side and a cylindrical valve on each injection side.
  • the present disclosure provides an automatic spring- return syringe that can be used for automatic aspiration of fluids.
  • a spring is configured between syringe cylinder and syringe plunger such that syringe plunger can move in to the syringe cylinder when pressed against the spring force, however when the pressure to move the plunger in is removed, the spring can make plunger to move out resulting in aspiration.
  • the disclosed dual-valve device incorporates interchangeable parts reducing their variety and making their manufacture cost effective.
  • these parts can be made of materials that are compatible for in vivo and in vitro use and such materials can consists of thermoplastics, polycarbonates, co-polyesters, silicone, etc., and device for medical use can be compliant to USP and ISO 10993 standards.
  • parts and components of a dual-valve device for aspiration and injection of fluids for non-medical use can be manufactured from other materials depending on their intended use.
  • FIG. 1 illustrates an exemplary isometric view 100 of a dual -valve device for aspiration and injection of fluids in accordance with embodiments of the present disclosure.
  • the disclosed device 100 can be implemented within a valve housing 102 and can incorporate multiple luers.
  • the valve housing 102 incorporates four luers two of which are configured to function as aspiration/injection luers 104 and other two as syringe luers 106.
  • Each of the aspiration/injection luers can be configured with a one way valve that can be configured to allow movement of fluid in one or other direction and block the movement in opposite direction.
  • a luer is configured with a valve that allows fluid to move out of the luer while blocking in-flow, it functions as injection luer.
  • a luer is configured with a valve that allows fluid to move in to the luer while blocking out-flow, it functions as aspiration luer.
  • valves are retained in position within the respective luer by a lock such as injection male-luer lock 110 and aspiration male-luer lock 108.
  • a lock such as injection male-luer lock 110 and aspiration male-luer lock 108.
  • each of the aspiration/injection luers can incorporate a thread-luer lock 112 for locking syringe- needle by thread application.
  • the syringe luers 106 can be configured to receive a syringe and also to facilitate closing of luer by an end cap such as 114 when not holding a syringe.
  • a syringe luer 106 is positioned against each aspiration/injection luerl04. In an embodiment positioning of a syringe luer 106 against each aspiration/injection luer 104 enables operation of disclosed dual valve device either in aspiration or injection mode by positioning a syringe appropriately.
  • valve housing 102 can be manufactured from any suitable rigid material and functions to house the parts and components of dual-valve device of present disclosure.
  • both aspiration and injection functions can be performed using dual-valve device 100 of present disclosure such that there can be no contamination or leakage of the fluids or medication during the process of aspiration or injection.
  • syringe luers 106 can be used for coupling of any syringe with the main valve housing body 102 of dual- valve device of the present disclosure.
  • syringe with and without automatic return springs can be coupled to main valve housing body 102 of dual valve device of the present disclosure through syringe luers 106.
  • injection male-luer lock 110, aspiration male-luer lock 108 and thread-luer locks 112 can be used for coupling/attaching different types of attachments to main valve housing body 102 for use in different applications.
  • luer type syringes can be coupled to injection male-luer lock 110 and aspiration male-luer lock 108 and dual -valve device 100 of present system and can be used for aspiration and injection of fluid.
  • syringe can be coupled on the aspiration male-luer lock 108 and bottle or sample collector container can be connected to either syringe luer 106 or injection male-luer lock 110 and fluid extracted through aspiration luer 104 can be directly transferred to the bottle or sample collector container thus ensuring that the sample extracted is not exposed to environment.
  • a medicine bottle can be connected to aspiration male-luer lock 108 or threaded luer lock 112 and syringe connected on injection male- luer lock 110, and needle of such syringe can be connected to body which is required to be injected with medicine, wherein medicine can then directly be extracted from the medicine bottle and injected into the body using dual -valve device of the present disclosure.
  • the said dual-valve device of the present disclosure can be used for extracting printer ink from a bottle or container and filling into a printer cartridge.
  • FIG. 2A illustrates an exemplary exploded view 200 of the dual-valve device for aspiration and injection of fluids in accordance with embodiments of the present disclosure.
  • the exploded view 200 are all parts and components of dual- valve devicelOO of present disclosure.
  • each of the luers 104/106 of the valve housing 102 can have cavities such as cylindrical cavities to house internal components - valves in case of aspiration/injection luers 104 and syringe in case of syringe luers 106. These cavities can be interconnected to each other to facilitate transfer of fluids from one luer to other as required.
  • construction and dimensional features of two syringe luers 106 including their internal cavities can be identical. This is because both are configured to receive similar syringes. However in special applications they may be different configured to receive syringes of different configurations.
  • construction and dimensions features of two aspiration/injection luers 104 can differ depending on function i.e. aspiration or injection they are configured to do.
  • each of the aspiration/injection luers 104 can be configured with a one way valve that can allow movement of fluid in one or other direction and block the movement in opposite direction.
  • a luer 104 is configured with a valve that allows fluid to move out of the luer while blocking in-flow, it functions as injection luer.
  • a luer is configured with a valve that allows fluid to move in to the luer while blocking out-flow, it functions as aspiration luer.
  • FIG.2A depicts valves 202 and 210 wherein valve 202 can comprise a hemispherical valve 208, a valve sleeve 206 and a micro valve spring 204 and on account of hemispherical construction can be called hemispherical valve assembly 202.
  • Valve 210 can comprise a cylindrical valve 214, a valve sleeve 212 and a micro valve spring 216 and on account of cylindrical construction can be called cylindrical valve assembly 210.
  • valve sleeve 206 and valve sleeve 212 can hold hemispherical valve 208 and cylindrical valve 214 respectively. These can also guide the linear vector position and pressure of the micro valve springs 204 and 216 to maintain their specific positions to open and lock the respective passages.
  • valve sleeve 206 and valve sleeve 212 can be identical thus reducing variety and number of components in the device.
  • cylindrical valve assembly 210 can be much more sensitive than hemispherical valve assembly 202 and is designed for micro-sensitive pressure, to hold both negative & positive pressures.
  • hemispherical valve assembly 202 can be configured on aspiration luer and cylindrical valve can be configured on injection luer.
  • the micro valve springs 204 and 216 can be made with different stiffness depending on requirement. Such a requirement may arise when the device 100 is to handle fluids of different viscosity.
  • the stiffness of the micro valve springs 204 and 216 can determine the pressure at which respective valve can open or close. Thus use of micro valve springs 204 and 216 with different stiffness can help in calibrating the device for different pressures and for handling fluids of differing viscosity as per market requirements.
  • Both the valve assemblies, hemispherical valve assembly 202 and cylindrical valve assembly 210 can be housed within cavities of respective luers and held in position by respective luer locks i.e. Aspiration male-luer lock 108 and injection male-luer lock 110.
  • Aspiration male-luer lock 108 and injection male-luer lock 110 can additionally help in attachment of syringe needle to respective luers during their use for aspiration and/or injection of fluids.
  • dual-valve device 100 can incorporate interchangeable parts reducing their variety and making their manufacture cost effective.
  • valve sleeve 206 can be identical to valve sleeve 212 and micro valve spring 204 can be identical to micro valve spring 216.
  • aspiration male-luer lock 108 and injection male-luer lock 110 can also be made identical to reduce variety and making their manufacture cost effective.
  • FIG.2A further shows a syringe 218 that can comprise syringe cylinder 220 (also referred to as cylinder), syringe plunger 224 (also referred to as plunger) and syringe spring 226.
  • syringe cylinder 220 can be used for suction & compression of fluid by physical method.
  • Syringe plunger 224 can move in linear direction inside the syringe cylinder 220 for creating negative & positive pressure inside the syringe cylinder 220.
  • Syringe spring 226 can be used for return of syringe plunger to starting position after pressure applied on to push forward has been released.
  • the syringe 218 depending on requirement can be positioned on one of the syringe luer 106 i.e. against aspiration luer or against injection luer and used for aspiration/ injection of fluids depending on requirement.
  • the syringe218 can be used for automatic aspiration of fluids.
  • the syringe spring 226 configured between syringe cylinder 220 and syringe plunger 226 can make syringe plunger 226 to move out from syringe cylinder 220 when the pressure to move the plunger in is removed, resulting in aspiration.
  • FIG. 2B illustrates an exemplary sectional view 250 of assembled dual -valve devicelOO in accordance with embodiments of the present disclosure.
  • both the valves, hemispherical valve assembly 202 and cylindrical valve assembly 210 can be housed in the cavities of respective luer and held in position by respective luer locks i.e. aspiration male-luer lock 108 and injection male-luer lock 110 to complete the dual valve device 100 assembly.
  • hemispherical valve assembly 202 can function to permit flow of fluid into the luer but prevent its out flow. Therefore luer housing hemispherical valve assembly 202 can function as aspiration luer 252.
  • cylindrical valve assembly 210 can function to permit flow of fluid out of the luer but prevent its inflow. Therefore luer housing cylindrical valve assembly 210 can function as injection luer 254
  • FIG. 3A illustrates an exemplary sectional view 300 of the dual-valve devicelOO being used in injection mode in accordance with embodiments of the present disclosure.
  • the syringe 218 can be positioned in a syringe luer opposite injection luer 254 so that syringe 218 is in alignment with luer 254.
  • plunger 228 of the syringe 218 can be in withdrawn position such that syringe spring 226 can be in extended position.
  • Further injection luer254 can be connected or coupled to a body or system (not shown), either directly or through a needle or any other suitable device, which is to be injected with a fluid and aspiration luer252 can be connected to a system (not shown) from which the fluid to be injected can be withdrawn.
  • both hemisphere valveassembly202 and cylindrical valve assembly 210 can hold atmospheric and body pressure because of the micro valve springs 204/216 keeping hemispherical valve 208 and cylindrical sleeve valve 214 in closed position.
  • syringe spring 226 can get compressed and plunger 228 can be pressed into syringe cylinder 220 increasing pressure inside syringe cylinder220.
  • the increased pressure can act on cylindrical sleeve valve 214 making it to move compressing micro valve spring 216 and opening the cylindrical valve assembly 210.
  • Opening of cylindrical valve assembly 210 can release the pressure through injection luer254.
  • the hemispherical valve 208 remains seated in its position because of the force exerted by micro valve spring 204 and the pressure created by plunger 228 of syringe 218.
  • plunger 228 When the pressure on syringe plunger 228 is released, plunger 228 can move back linearly backward inside syringe cylinder 220 under force from syringe spring 226 and create a vacuum inside the dual valve device 100.
  • the created vacuum can exert a force on hemispherical valve 208 to make it move back compressing the micro valve spring 204 and opening the hemispherical valve assembly 202. Opening the hemispherical valve assembly 202 can result in fluid to enter through aspiration luer252 into syringe cylinder 220 through the connecting passage.
  • cylindrical valve assembly 210 can remain in closed position because of vacuum created by withdrawal of syringe plunger 228 and micro valve spring 216.
  • syringe spring 226 can get compressed and spring plunger 228 can be pressed into syringe body 220, creating a corresponding pressure inside dual valve device 100 which can make the drawn fluid in the syringe cylinder 220 to move in outward direction and creates a pressure on cylindrical valve 214 and compresses micro valve spring 216 to open the cylindrical valveassembly 210 to open and allow the fluid to pass through injection luer254 to move out of the device 100.
  • the disclosed dual valve device 100 allows fluid to be taken in through aspiration luer 252 and injected through injection luer 254 during the whole process of aspiration and injection..
  • FIG. 3B illustrates an exemplary sectional view 350 of the dual -valve device being used in aspiration mode in accordance with embodiments of the present disclosure.
  • the working of dual-valve device 100 in aspiration mode can be almost similar to the working of dual-valve device 100 in injection mode and the only difference can be in the coupling of syringe 218 with a syringe luer opposite aspiration luer 252 such that syringe 218 can be in alignment with axis of aspiration luer 252 as depicted in view 350.
  • aspiration luer 252 can be connected or coupled to a body or system (not shown), either directly or through a needle or any other device, from which fluid can be aspirated and injection luer 254 can be connected to any body or system (not shown) to which such fluid can be transferred.
  • plunger 228 of syringe 218 can be in withdrawn position such that syringe spring 226is in extended position.
  • both hemisphere valve assembly 202 and cylindrical valve assembly 210 can be in closed/hold position because of force exerted by respective micro valve springs 204 and 216.
  • syringe spring 226 can get compressed and spring plunger 228 can be pressed into syringe cylinder220 creating a pressure inside syringe cylinder 220 which can act on cylindrical sleeve valve 214, compress micro valve spring 216 and open the cylindrical valve assembly 210therebyreleasing the pressure through the injection luer254.
  • the hemispherical valve 208 remains in closed position because of the force exerted by micro valve spring 204 and the pressure exerted by plunging of syringe plunger 228.
  • syringe spring 226 decompresses making plunger 228 to move linearly backward inside syringe cylinder220 and create a vacuum inside the device 100.
  • the created vacuum can create a force on hemispherical valve 208 and due to which micro valve spring 204 can get compresses and allow the hemispherical valve 208 to move opening the hemisphere valve assembly 202.
  • the fluid can now enter through aspiration luer252 and move to syringe 218.
  • cylindrical sleeve valve 214 can remain in closed position because of vacuum created by withdrawal of syringe plunger 228 and force exerted by micro valve spring 216.
  • syringe spring 226 can get compressed and plunger 228 can get pressed into syringe cylinder220 creating a pressure inside syringe cylinder220 forcing the fluid to move in outward direction and create a pressure on cylindrical sleeve valve 214 and compresses micro valve spring 216.
  • This can result in cylindrical valve assembly 210 to open and allows the fluid to pass through injection luer254 in outward direction.
  • hemisphere valveassembly202 can remain in closed position because of the force of micro valve spring 204 and force created by plunger 228.
  • the present disclosure provides a dual -valve device for aspiration and injection of fluids.
  • the present disclosure provides a dual-valve device that incorporates two luers for aspiration and injection of fluids respectively.
  • the present disclosure provides a dual-valve device that can be used with or without needles.
  • the present disclosure provides a dual-valve device that can hold high pressure.
  • the present disclosure provides a dual-valve device that incorporates a mechanical auto self-closing system to hold body and atmospheric pressure.
  • the present disclosure provides a dual-valve device that can be used for high viscosity fluids without causing malfunctioning of valves.
  • the present disclosure provides a dual-valve device that can be used without multiple attachments.
  • the present disclosure provides a dual-valve device with linear-spring cylindrical valve and linear-spring hemisphere valves that can withstand temperature fluctuations without malfunctioning.
  • the present disclosure provides a dual-valve device that is of simple design and that requires less number of parts and therefore is cheap to manufacture and assemble.
  • the present disclosure provides a dual-valve device that can be used for various applications such as in household, industrial, medical, bio-medical, laboratory, etc.
  • the present disclosure provides a dual-valve device which can be calibrated for pressure and viscosity of liquid as per market requirements. [00093] The present disclosure provides a dual-valve device that offers flexibility in use of attachments.
  • the present disclosure provides an automatic spring-return syringe that can be used on as required basis for automatic aspiration of fluids.

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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

Un dispositif à double clapet pour l'aspiration et l'injection de fluides A été décrit qui peut être utilisé pour des applications à usages multiples avec ou sans aiguilles et utilisé dans le procédé d'injecter ou aspirer. La construction du dispositif à double soupape permet l'étalonnage du dispositif en fonction des exigences du marché.
PCT/IB2016/050212 2015-01-19 2016-01-16 Double dispositif de soupape pour l'aspiration et l'injection de fluides Ceased WO2016116843A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN191MU2015 2015-01-19
IN191/MUM/2015 2015-01-19

Publications (1)

Publication Number Publication Date
WO2016116843A1 true WO2016116843A1 (fr) 2016-07-28

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GB2570020A (en) * 2017-09-21 2019-07-10 Kheradpir Leila Tracked suction tool
CN120754429A (zh) * 2025-09-11 2025-10-10 吉林大学第一医院 一种医用一次性三通阀的防漏液密封帽组件及其连接结构

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US20170368325A1 (en) * 2015-03-11 2017-12-28 Terumo Kabushiki Kaisha Connector and medical device set
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