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GB2486644A - Syringe adapter with a valve and exhaust channel - Google Patents

Syringe adapter with a valve and exhaust channel Download PDF

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Publication number
GB2486644A
GB2486644A GB1021514.3A GB201021514A GB2486644A GB 2486644 A GB2486644 A GB 2486644A GB 201021514 A GB201021514 A GB 201021514A GB 2486644 A GB2486644 A GB 2486644A
Authority
GB
United Kingdom
Prior art keywords
base
syringe adapter
plunger
resilient valve
tube
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
GB1021514.3A
Other versions
GB201021514D0 (en
GB2486644B (en
Inventor
Hsiu-Feng Pan
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
Priority to GB1021514.3A priority Critical patent/GB2486644B/en
Publication of GB201021514D0 publication Critical patent/GB201021514D0/en
Publication of GB2486644A publication Critical patent/GB2486644A/en
Application granted granted Critical
Publication of GB2486644B publication Critical patent/GB2486644B/en
Expired - Fee Related 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
    • A61M39/10—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
    • A61M39/02—Access sites
    • 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
    • A61M39/1011—Locking means for securing connection; Additional tamper safeties
    • 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
    • A61M39/10—Tube connectors; Tube couplings
    • A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-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
    • A61M2039/1077—Adapters, e.g. couplings adapting a connector to one or several other connectors

Landscapes

  • 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

A syringe adapter with a resilient valve has a base 10, a dosing tube 20 mounted around the base 10 and a resilient valve 30 mounted in the base 10 and the dosing tube 20. The base 10 has a guiding groove 112 and an inner liquid channel 122 communicating with each other, as well as an exhaust channel 16, 16'. The inner liquid channel 122 is formed transversely through the bottom 12 of the base 10. Liquid medicine injected into the syringe adapter flows through the guiding groove 112 and the inner liquid channel 122, and causes the liquid medicine to be injected into a patient's body. The resilient 30 valve comprises a positioning ring 31, bendable portion 32, plunger 33 and an air chamber 34. The air chamber is in communication with the exhaust channel 16. Air in the syringe adapter flows out through the exhaust channel 16, 16' and is not injected into the patient's body.

Description

SYRINGE ADAPTER WITH A BALL-TYPED VALVE
1. Field of the Invention
The present invention relates to a syringe adapter with a ball-typed valve, especially to a syringe adapter that allows a needleless syringe to inject liquid medicine therethrough.
2. Description of the Prior Art(s)
In order to reduce needle shots for patients undergoing medical examinations like a blood test, a syringe adapter is mounted on a delivery pipe of an intravenous bag or mounted directly on the patient. By so doing, nutrition or liquid medicine can be injected into the patient through the syringe adapter and the patient does not have to go through the discomfort of repeated injections.
A conventional syringe adapter, such as a BI-DIRECTIONAL VALVE AND METHOD OF USiNG SAME (US Patent No. 5,782,816) or a FLUID HANDLING DEVICE AND METHOD OF MAKiNG SAME (US Patent No. 7,520,489), has a dosing tube and a resilient valve. The resilient valve is mounted in the dosing tube and has a peripheral protrusion formed around the resilient valve and abutting an inner surface of the dosing tube to securely seal open ends of the dosing tube when the conventional syringe adapter is not in use. Thus, when a needleless syringe is inserted into the dosing tube, the resilient valve is pressed and arced, so a flowing space is formed between the resilient valve, the open ends and the inner surface of the dosing tube. Then, liquid medicine is injected into a patient through the conventional syringe adapter.
I
However, the conventional syringe adapter has the following disadvantages. When the needleless syringe is drawn out from the syringe adapter, a negative pressure causes the blood of the patient or the liquid medicine to flow back to and remain in the conventional syringe adapter.
Consequently, when injecting again, the blood and the liquid medicine remaining in the conventional syringe adapter is injected back into the patient's body, putting the patient at the risk of infection. Furthermore, air remaining in the dosing tube is also injected into the patient's body. The air expands the patient's blood vessel and causes the patient uncomfortable.
Another conventional syringe adapter, such as a NEEDLELESS ACCESS DEVICE (US Patent No. 6,228,069), has a tubular body, a cap mounted on and around the body, and a plunger and a spring mounted in the body. The plunger is pulled by the spring and selectively seals an open end of the body. A channel that allows the liquid medicine to flow through and a vent that allows the air in the body to flow out of the conventional syringe adapter are defined between the body and the cap so the air is not injected into the patient's body.
Since the plunger is pulled by the spring, at least four elements for assembling the abovementioned conventional syringe adapter are needed. Thus, manufacturing cost of the conventional syringe adapter is high and manufacturing processes of the conventional syringe adapter is complicated.
Moreover, since the metal spring affects the result of a magnetic resonance imaging (MRI) scan, the patient cannot wear the conventional syringe adapter during a MRI check-up. In that case, the intended effect of the conventional syringe adapter, that is, reducing the needle shots for the patients, is not achieved.
The main objective of the present invention is to provide a syringe adapter with a ball-typed valve. The syringe adapter has a base, a dosing tube mounted around the base and a resilient valve mounted in the base and the dosing tube. The base has a guiding groove and an inner liquid channel communicating with each other, as well as an exhaust channel.
Liquid medicine injected into the syringe adapter flows through the guiding groove and the inner liquid channel, and causes the liquid medicine to be injected into a patient's body. The liquid medicine remaining in the split is cleaned when cleaning fluid is injected to clean the syringe adapter. Air in the syringe adapter flows out through the exhaust channel and is not injected into the patient's body, so the patient is free from pain. Furthermore, elements and assembling processes of the syringe adapter are simplified and manufacturing cost of the syringe adapter is lowered.
[N THE DRAWINGS Fig. 1 is a perspective view of a first embodiment of a syringe adapter with a ball-typed valve in accordance with the present invention; Fig. 2 is an exploded perspective view of the syringe adapter in Fig. 1; Fig. 3 is a cross-sectional side view of the syringe adapter in Fig. 1; Fig. 4 is an operational cross-sectional side view of the syringe adapter in Fig. 1; Fig. 5 is an operational cross-sectional side view of a second embodiment of a syringe adapter with a ball-typed valve in accordance with the present invention; Fig. 6 is a cross-sectional side view of a third embodiment of a syringe adapter with a ball-typed valve in accordance with the present invention; Fig. 7 is an operational cross-sectional side view of the syringe adapter inFig.6; Fig. 8 is an exploded perspective view of a fourth embodiment of a syringe adapter with a ball-typed valve in accordance with the present invention; Fig. 9 is a cross-sectional side view of the syringe adapter in Fig. 8; Fig. 10 is an operational cross-sectional side view of the syringe adapter in Fig. 8; Fig. 11 is a cross-sectional side view of a fifth embodiment of a syringe adapter with a ball-typed valve in accordance with the present invention; and Fig. 12 is an operational cross-sectional side view of the syringe adapter in Fig. 11.
With reference to Figs. 1 and 4, a syringe adapter with a ball-typed valve in accordance with the present invention is connected to a delivery pipe 42 that is connected to a patient through a needle. Thus, a needleless syringe 41 injects liquid medicine into the patient through the syringe adapter and the delivery pipe 42.
With further reference to Fig. 2, a first preferred embodiment of the syringe adapter in accordance with the present invention comprises a base 10, a dosing tube 20 and a resilient valve 30.
With further reference to Figs. 3 and 5, the base 10 is tubular in shape and has a circular wall 11, a bottom 12, a connecting tube 13, an inner thread 14, a flange 15 and an exhaust channel 16, 16'.
The circular wall 11 is formed on and around the base 10 and has a mounting recess 111 and a guiding groove 112. The mounting recess 111 is defined in the circular wall 11. The guiding groove 112 is formed in an outer surface of the circular wall 11. The bottom 12 is formed in the mounting recess 111 and has an upper surface, a circular groove 121 and an inner liquid channel 122. The upper surface of the bottom 12 corresponds to the mounting recess 11 1. The circular groove 121 is formed in the upper surface of the bottom 12.
The inner liquid channel 122 is formed transversely through the bottom 12 and communicates with the guiding groove 112 of the circular wall 11.
The connecting tube 13 protrudes downward from the base 10, communicates with the inner liquid channel 122 of the bottom 12 and is connected with the delivery pipe 42. The inner thread 14 is formed around an inner surface of the connecting tube 13 of the base 10, so the base 10 is capable of being screwed to other pipes through the inner thread 14. The flange 15 is formed around an outer surface of the base 10.
The exhaust channel 16, 16' is formed through the base 10, communicates the mounting recess 111 with an outside of the syringe adapter and does not communicate with the inner liquid channel 122 of the bottom 12.
With reference to Fig. 4, the exhaust channel 16 may be formed longitudinally through the bottom 12 and communicates with the connecting tube 13. With reference to Fig. 5, in a second preferred embodiment of the syringe adapter, the exhaust channel 16' may be formed transversely through the bottom 12, the circularwall 11 andthe flange 15.
The dosing tube 20 is tubular in shape, is mounted securely around the circularwall 11 ofthebase 10,abutstheflange l5ofthebase 10, andhas an injection tube 21 and a stop 23. The injection tube 21 protrudes up from a top of the dosing tube 20, communicates with the mounting recess 111 of the base and has an outer thread 22 formed around an outer surface of the injection tube 21. Thus, the dosing tube 20 can be screwed to the needleless syringe 41 through the outer thread 22. The stop 23 is formed on an inner surface of the dosing tube 20 adjacent to the top of the dosing tube 20.
The resilient valve 30 is silicon and hollow, is mounted in the mounting recess 111 of the base 10 and the dosing tube 20, and has a positioning ring 31, a bendable portion 32, a plunger 33 and an air chamber 34.
The positioning ring 31 is mounted on the bottom 12 of the base 10 and has a lower end, an upper end and a thickness. The lower end of the positioning ring 31 is mounted in the circular groove 121 of the bottom 12 of the base 10.
The upper end of the positioning ring 31 selectively abuts the stop 23 of the dosing tube 20. The bendable portion 32 is formed around the upper end of the positioning ring 31 and has a thickness thinner than the thickness of the positioning ring 31,so the bendable portion 32 is more easily bent than the positioning ring 31.
The plunger 33 is formed on the bendable portion 32 and protrudes into the injection tube 21 of the dosing tube 20 to seal the injection tube 21 and has a through hole 331 formed transversely through the plunger 33,so the plunger 33 is also bendable.
The air chamber 34 is defined in the positioning ring 31, the bendable portion 32 and the plunger 33 and communicates with the exhaust channel 16, 16' of the base 10.
With further reference to Fig. 3, before the needleless syringe 41 is inserted into the injection tube 21 of the dosing tube 20, the plunger 33 of the resilient valve 30 protrudes in and seals the injection tube 21.
With further reference to Fig. 4, when the needleless syringe 41 is inserted into the injection tube 21 of the dosing tube 20, the plunger 33 of the resilient valve 30 is pulled so the bendable portion 32 and the plunger 33 of the resilient valve 30 are bent and the upper end of the positioning ring 31 of the resilient valve 30 is detached from the stop 23 of the dosing tube 20.
Thus, the liquid medicine in the needleless syringe 41 is injected into the dosing tube 20, filling the space between the resilient valve 30 and the dosing tube 20. The liquid medicine then flows through the guiding groove 112, the inner liquid channel 122 and the connecting tube 13 of the base 10 and is injected into the patient's body through the delivery pipe 42 and the needle.
Furthermore, when the bendable portion 32 of the resilient valve 30 is pulled and bent by the needleless syringe 41, air in the air chamber 34 of the resilient valve 30 is discharged to the outside of the syringe adapter through the exhaust channel 16, 16' of the base 10 to facilitate the pulling of the resilient valve 30. Since the liquid medicine and the air flow through different paths, the air is not injected into the patient's body and the patient is free from pain.
With further reference to Fig. 6, in a third preferred embodiment of the syringe adapter, the plunger 33A of the resilient valve 30A has a split 332A formed in a top of the plunger 33A. When the plunger 33A protrudes into the injection tube 21 of the dosing tube 20, the plunger 33A is pressed and the split 332A is sealed.
With further reference to Fig. 7, when the needleless syringe 41 pulls the plunger 33A of the resilient valve 30A, the plunger 33A opens up and the split 332A becomes a space that is triangular in shape in cross-section and allows the liquid medicine to flow through. The plunger 33A with the split 332A that opens up whenever the needle-less syringe 41 pulls the plunger 33A ensures that the liquid medicine can be injected into the syringe adapter.
Consequently, the liquid medicine remaining in the split 332A is also cleaned when cleaning fluid is injected to clean the syringe adapter.
With further reference to Figs. 8 and 9, in a fourth preferred embodiment of the syringe adapter, the plunger 33B of the resilient valve 30B is hollow and has an additional chamber 33313 defined in the plunger 3313, communicating with the air chamber 34 of the resilient valve 3013 and preferably, being oblate.
With further reference to Fig. 10, when the needleless syringe pulls the plunger 3313 of the resilient valve 3013, the additional chamber 33313 allows the plunger 3313 to be bent and the oblate additional chamber 333B further allows the plunger 338 to be bent toward a specific direction. Moreover, since the additional chamber 333B is not formed through the plunger 338, the liquid medicine does not flow through the additional chamber 3338 and no liquid medicine remains in the additional chamber 3338.
With further reference to Fig. 11, in a fifth preferred embodiment of the syringe adapter, the plunger 33C of the resilient valve 30C is hollow and has an additional chamber 333C defined in the plunger 33C and communicating with the air chamber 34 of the resilient valve 30C. Furthermore, the resilient valve 30C further has an inner surface and a thickening layer 35C. The inner surface of the resilient valve 30C is defined around the air chamber 34 and the additional chamber 333C of the plunger 33C. The thickening layer 35C is formed partially on the inner surface of the resilient valve 30C.
With further reference to Fig. 12, when the needleless syringe pulls the plunger 33C of the resilient valve 30C, the additional chamber 333C allows the plunger 33C to be bent and the thickening layer 35C further allows the plunger 33C to be bent toward a specific direction. Similar to the abovementioned fourth preferred embodiment, the additional chamber 333C is not formed through the plunger 33C so the liquid medicine does not flow through the additional chamber 333C and no liquid medicine remains in the additional chamber 333C.
The syringe adapter as described has the following advantages. Since no metal spring is needed in the syringe adapter, elements and assembling processes of the syringe adapter are simplified and manufacturing cost of the syringe adapter is lowered. In addition, the patient does not need to take off the syringe adapter while undergoing a magnetic resonance imaging (MRI) scan.

Claims (11)

  1. CLAIMS: 1. A syringe adapter comprising a base (10) being tubular in shape and having a circular wall (11) formed on and around the base (10) and having a mounting recess (111) defined in the circular wall (11); and a guiding groove (112) formed in an outer surface of the circular wall (11); a bottom (12) formed in the mounting recess (111) and having an inner liquid channel (122) formed transversely through the bottom (12) and communicating with the guiding groove (112) of the circular wall (11); and an exhaust channel (16, 16') formed through the base (10), communicating the mounting recess (111) with an outside of the syringe adapter and not communicating with the inner liquid channel (122) of the bottom (12); a dosing tube (20) mounted securely around the circular wall (11) of the base (10) and having an injection tube (21) protmding up from a top of the dosing tube (20) and communicating with the mounting recess (ill) of the base (10); and a resilient valve (30, 30A, 30B, 30C) mounted in the mounting recess (111) of the base (10) and the dosing tube (20) and having a positioning ring (31, 31 C) mounted on the bottom (12) of the base (10); a bendable portion (32, 32C) formed around the upper end of the positioning ring (31, 31 C); a plunger (33, 33A, 33B, 33C) formed on the bendable portion (32, 32C) and protmding into the injection tube (21) of the dosing tube (20); and an air chamber (34) defined in the positioning ring (31, 31 C), the bendable portion (32, 32C) and the plunger (33, 33A, 33B, 33C) and communicating with the exhaust channel (16, 16') of the base (10).
  2. 2. The syringe adapter as claimed in claim 1, wherein the exhaust channel (16) of the base (10) is formed longitudinally through the bottom (12) of the base (10).
  3. 3. The syringe adapter as claimed in claim 1, wherein the base (10) further has a flange (15) formed around an outer surface of the base (10); the exhaust channel (16') of the base (10) is formed transversely through the bottom (12), the circular wall (11) and the flange (15) of the base (10); and the dosing tube (20) abuts the flange (15) of the base (10).
  4. 4. The syringe adapter as claimed in claim 1, wherein the dosing tube (20) further has a stop (23) formed on an inner surface of the dosing tube (20) adjacent to the top of the dosing tube (20); and the positioning ring (31, 31 C) of the resilient valve (30, 30A, 30B, 30C) has an upper end selectively abutting the stop (23) of the dosing tube (20).
  5. 5. The syringe adapter as claimed in claims 1, 2, 3 or 4, wherein the plunger (33) of the resilient valve (30) has a through hole (331) formed transversely through the plunger (33).
  6. 6. The syringe adapter as claimed in claims 1, 2, 3 or 4, wherein the plunger (33A) of the resilient valve (30A) has a split (332A) formed in a top of the plunger (33A).
  7. 7. The syringe adapter as claimed in claims 1, 2, 3 or 4, wherein the plunger (33B) of the resilient valve (30B) is hollow and has an additional chamber (333B) defined in the plunger (33B) and communicating with the air chamber (34) of the resilient valve (33B).
  8. 8. The syringe adapter as claimed in claims 1, 2 or 3, wherein the plunger (33 C) of the resilient valve (30C) is hollow and has an additional chamber (333C) defined in the plunger (33C) and communicating with the air chamber (34) of the resilient valve (30C); and the resilient valve (30C) further has an inner surface defined around the air chamber (34C) and the additional chamber of the plunger (33C) of the resilient valve (30C); and a thickening layer (35C) formed partially on the inner surface of the resilient valve (30C).
  9. 9. The syringe adapter as claimed in claims 1, 2, 3 or 4, wherein the bottom (12) of the base (10) further has an upper surface corresponding to the mounting recess (111) of the base (10); and a circular groove (121) formed in the upper surface of the bottom (12); and the positioning ring (31, 31 C) of the resilient valve (30, 30A, 30B, 30C) further has a lower end mounted in the circular groove (121) of the bottom (12) of the base (10).
  10. 10. The syringe adapter as claimed in claim 9, wherein the base (10) further has a connecting tube (13) protruding downward from the base (10) and communicating with the inner liquid channel (122) of the bottom (12) of the base (10).
  11. 11. The syringe adapter as claimed in claim 10, wherein the base (10) further has an inner thread (14) formed around an inner surface of the connecting tube (13) of the base (10); and the injection tube (21) of the dosing tube (20) further has an outer thread (22) formed around an outer surface of the injection tube (21).
GB1021514.3A 2010-12-20 2010-12-20 Syringe adapter with a valve and an exhaust channel Expired - Fee Related GB2486644B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1021514.3A GB2486644B (en) 2010-12-20 2010-12-20 Syringe adapter with a valve and an exhaust channel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1021514.3A GB2486644B (en) 2010-12-20 2010-12-20 Syringe adapter with a valve and an exhaust channel

Publications (3)

Publication Number Publication Date
GB201021514D0 GB201021514D0 (en) 2011-02-02
GB2486644A true GB2486644A (en) 2012-06-27
GB2486644B GB2486644B (en) 2013-02-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1021514.3A Expired - Fee Related GB2486644B (en) 2010-12-20 2010-12-20 Syringe adapter with a valve and an exhaust channel

Country Status (1)

Country Link
GB (1) GB2486644B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696461A2 (en) * 1994-08-10 1996-02-14 Becton, Dickinson and Company Valved PRN adapter for infusion devices
US5782816A (en) * 1995-09-07 1998-07-21 David R. Kipp Bi-directional valve and method of using same
US20050010177A1 (en) * 2003-07-08 2005-01-13 Hsi-Chin Tsai Injection joint for an intravenous (iv) device tube
EP2161053A1 (en) * 2008-08-11 2010-03-10 Baxter International Inc. Needleless connector with displacement correction
WO2010111546A2 (en) * 2009-03-25 2010-09-30 Icu Medical, Inc. Medical connectors and methods of use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0696461A2 (en) * 1994-08-10 1996-02-14 Becton, Dickinson and Company Valved PRN adapter for infusion devices
US5782816A (en) * 1995-09-07 1998-07-21 David R. Kipp Bi-directional valve and method of using same
US20050010177A1 (en) * 2003-07-08 2005-01-13 Hsi-Chin Tsai Injection joint for an intravenous (iv) device tube
EP2161053A1 (en) * 2008-08-11 2010-03-10 Baxter International Inc. Needleless connector with displacement correction
WO2010111546A2 (en) * 2009-03-25 2010-09-30 Icu Medical, Inc. Medical connectors and methods of use

Also Published As

Publication number Publication date
GB201021514D0 (en) 2011-02-02
GB2486644B (en) 2013-02-13

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20211220