CA2591329A1 - Valved male luer connector having sequential valve timing - Google Patents

Valved male luer connector having sequential valve timing Download PDF

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Publication number
CA2591329A1
CA2591329A1 CA002591329A CA2591329A CA2591329A1 CA 2591329 A1 CA2591329 A1 CA 2591329A1 CA 002591329 A CA002591329 A CA 002591329A CA 2591329 A CA2591329 A CA 2591329A CA 2591329 A1 CA2591329 A1 CA 2591329A1
Authority
CA
Canada
Prior art keywords
valve
connector
male
distal
proximal
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.)
Granted
Application number
CA002591329A
Other languages
French (fr)
Other versions
CA2591329C (en
Inventor
Mark C. Doyle
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.)
CareFusion 303 Inc
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 CA2591329A1 publication Critical patent/CA2591329A1/en
Application granted granted Critical
Publication of CA2591329C publication Critical patent/CA2591329C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A61M39/02—Access sites
    • A61M39/04—Access sites having pierceable self-sealing members
    • A61M39/045—Access sites having pierceable self-sealing members pre-slit to be pierced by blunt instrument
    • 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
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • 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
    • 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
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1825—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with flexible valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • F16L29/04—Joints with fluid cut-off means with a cut-off device in each of the two pipe ends, the cut-off devices being automatically opened when the coupling is applied
    • 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
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • A61M2039/261—Valves closing automatically on disconnecting the line and opening on reconnection thereof where the fluid space within the valve is increasing upon disconnection
    • 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
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • A61M2039/263—Valves closing automatically on disconnecting the line and opening on reconnection thereof where the fluid space within the valve is decreasing upon disconnection
    • 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
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • A61M2039/267—Valves closing automatically on disconnecting the line and opening on reconnection thereof having a sealing sleeve around a tubular or solid stem portion of the connector
    • 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
    • A61M39/26—Valves closing automatically on disconnecting the line and opening on reconnection thereof
    • A61M2039/267—Valves closing automatically on disconnecting the line and opening on reconnection thereof having a sealing sleeve around a tubular or solid stem portion of the connector
    • A61M2039/268—Valves closing automatically on disconnecting the line and opening on reconnection thereof having a sealing sleeve around a tubular or solid stem portion of the connector wherein the stem portion is moved for opening and closing the valve, e.g. by translation, rotation
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M39/14—Tube connectors; Tube couplings for connecting tubes having sealed ends

Abstract

A male Luer connector (200) that attaches to a female Luer connector to open a medical fluid flow channel between said connectors. The male connector has two internal valves (206, 208) and a vacuum-generating structure (212, 210). The two valves and the vacuum-~ generating structure are configured to draw back into the male connector any fluid residing on the interface between the connectors during their disengagement and to then seal the distal tip of the male connector. Both valves are opened/closed by a movable actuator plug (224) by contact with the front surface of the female connector. A resilient member (210) biases the male valves to the closed position and includes a variable internal volume (212) that creates the vacuum upon disengagement of the connectors. The male valves are timed to a particular sequence with the closing of an internal female connector valve so that the vacuum generated by the male connector will have the most fluid drawback effect.

Claims (21)

1. ~A male Luer connector for connection with a female Luer connector for medical fluid flow, the female connector having a front contact surface and an internal valve, the male Luer connector comprising:
a tubular housing having a distal end and a proximal end, the distal end configured to engage the female Luer connector and establish an interface; and vacuum means for creating a partial vacuum at the distal end of the tubular housing during disengagement of the male connector from the female connector during a time period when the female valve is closed;

whereby the vacuum means draws fluid residing at the interface away from the interface during disengagement of the male and female connectors.
2. ~The male Luer connector of claim 1 wherein the vacuum means is located within the tubular housing.
3. ~The male Luer connector of claim 1 wherein the vacuum means comprises a first valve controlling the flow of fluid through the proximal end of the tubular housing.
4. ~The male Luer connector of claim 1 wherein the vacuum means comprises a second valve controlling the flow of fluid through the distal end of the tubular housing.
5. ~The male Luer connector of claim 1 wherein:
the vacuum means comprises a first valve controlling the flow of fluid through the proximal end of the tubular housing;

the vacuum means comprises a second valve controlling the flow of fluid through the distal end of the tubular housing; and the vacuum means is also for controlling the second valve to remain open while the vacuum means creates the partial vacuum.
6. ~The male Luer connector of claim 5 wherein the vacuum means is also for controlling the first valve to close first, and controlling the second valve to remain open after the female connector valve closes during disengagement of the female connector from the male connector.
7. ~The male Luer connector of claim 5 wherein:

the vacuum means comprises an actuator that controls the opening and closing of the first and second valves;
the vacuum means further comprises an actuation surface disposed so as to be moveable by the front contact surface of the female connector to control the actuator to open and close the first and second valves.
8. ~The male Luer connector of claim 7 wherein:
the first valve comprises a proximal valve disposed at the proximal end of the tubular housing;
the second valve comprises a distal valve disposed at the distal end of the tubular housing; and the actuator is disposed within the tubular housing to open and close both the proximal and distal valves.
9. ~The male Luer connector of claim 8 wherein the vacuum means further comprises a resilient member disposed to bias the actuator to close both the proximal and distal valves.
10. ~The male Luer connector of claim 9 wherein the resilient member has an inner variable-volume cavity through which fluid flows, the cavity having a first volume when the proximal and distal valves are closed, the cavity having a second volume smaller than the first volume when the distal valve is open;
whereby the resilient member creates a partial vacuum when moving from the second volume to the first volume during closure of the distal valve.
11. ~The male Luer connector of claim 10 wherein:
the cavity has the second volume when the male and female connectors are engaged; and the cavity moves to the first volume thereby creating the partial vacuum when the male and female connectors are being disengaged.
12. ~The male Luer connector of claim 11 wherein:
the resilient member forms a valve seat for the distal valve and a valve seat for the proximal valve;

the actuator provides a distal valve member for the distal valve that fits into the distal valve seat to close the distal valve and provides a proximal valve member for the proximal valve that fits into the proximal valve seat to close the proximal valve.
13. ~The male Luer connector of claim 12 wherein:
the resilient member provides the actuation surface;
the actuator is disposed within the resilient member in contact with the resilient member;
movement of the resilient member due to engagement with the front contact surface of the female connector causes corresponding movement of the actuator to open and close the distal and proximal valves.
14. ~A male connector for connection with a female connector to establish a path for medical fluid flow, the female connector having a front contact surface and an internal valve, the male connector comprising:
a tubular housing having a distal end and a proximal end, the distal end configured to engage the female Luer connector and establish an interface;
a first valve seat disposed for use in controlling the flow of fluid through the distal end of the tubular housing;
an internal plug disposed within the tubular housing, the internal plug having a first valve member that engages the first valve seat to prevent the flow of fluid past the first valve seat; and a resilient member disposed within the tubular housing so as to bias the internal plug to engage the first valve seat, the resilient member having an inner variable-volume cavity through which fluid flows, the cavity having a first volume when the first valve is closed, the cavity having a second volume smaller than the first volume when the first valve is open;
wherein the resilient member is disposed so that engagement of the female connector with the male connector causes the resilient member cavity to move to the second volume and disengagement of the female connector from the male connector causes the cavity to move from the second volume to the first volume thereby creating a partial vacuum.
15. ~The male connector of claim 14 wherein the first valve seat is disposed at the proximal end of the housing;
whereby moving the resilient member cavity from the second volume to the first volume creates the partial vacuum at the distal end of the tubular housing to draw away medical fluid existing at an interface between the male and female connectors during disengagement.
16. ~The male connector of claim 15 wherein the resilient member is disposed so that the cavity moves to the first volume during a time period after the valve of the female connector has closed whereby the partial vacuum draws away medical fluid existing at an interface between the male and female connectors during disengagement.
17. ~The male connector of claim 16 wherein the first valve seat is a distal valve seat disposed for use in controlling the flow of fluid through the distal end of the tubular housing;
the male connector further comprising a proximal valve seat disposed for use in controlling the flow of fluid through the proximal end of the tubular housing;
wherein the first valve member is a distal valve member that engages the distal valve seat to prevent the flow of fluid past the distal valve seat, and further comprising a proximal valve member that engages the proximal valve seat to prevent the flow of fluid past the proximal valve seat; and wherein the resilient member biases the internal plug to engage both the distal valve seat and the proximal valve seat, the first volume of the cavity existing when the proximal and distal valves are closed, the second volume of the cavity existing when the distal valve is open.
18. ~A method for disengaging a male connector from a female connector, the male connector including a distal end engaged with the female connector, a proximal end, and an internal valve and the female connector including a proximal end engaged with the male connector, a distal end, and an internal valve, the method comprising:
closing a first valve in the male connector at the proximal end of the male connector to isolate an interface between the male connector and the female connector from fluid at the proximal end of the male connector; and creating a partial vacuum at the interface of the male connector and female connector to draw fluid at the interface away from the interface.
19. ~The method of claim 18 further comprising the step of closing the internal valve of the female connector before the step of creating a partial vacuum.
20. ~The method of claim 19 further comprising the step of closing a valve at the distal end of the male connector after the step of creating a partial vacuum.
21. ~The method of claim 19 wherein the step of creating a partial vacuum comprises creating a partial vacuum within the male connector and drawing fluid at the interface into the male connector.
CA2591329A 2004-12-10 2005-12-01 Valved male luer connector having sequential valve timing Active CA2591329C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/010,096 2004-12-10
US11/010,096 US7044441B2 (en) 2001-08-10 2004-12-10 Valved male luer connector having sequential valve timing
PCT/US2005/043338 WO2006078355A1 (en) 2004-12-10 2005-12-01 Valved male luer connector having sequential valve timing

Publications (2)

Publication Number Publication Date
CA2591329A1 true CA2591329A1 (en) 2006-07-27
CA2591329C CA2591329C (en) 2013-09-24

Family

ID=35966970

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2591329A Active CA2591329C (en) 2004-12-10 2005-12-01 Valved male luer connector having sequential valve timing

Country Status (15)

Country Link
US (2) US7044441B2 (en)
EP (1) EP1827567B1 (en)
JP (2) JP5285911B2 (en)
KR (1) KR101227399B1 (en)
CN (1) CN101111282B (en)
AU (1) AU2005325153B2 (en)
BR (1) BRPI0518974A2 (en)
CA (1) CA2591329C (en)
ES (1) ES2728599T3 (en)
HK (1) HK1117087A1 (en)
NO (1) NO20073466L (en)
NZ (1) NZ555751A (en)
RU (1) RU2394608C2 (en)
WO (1) WO2006078355A1 (en)
ZA (1) ZA200705175B (en)

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