Tamper proof luer lock connector and a valve arrangement for an adaptor

Patent metadata

Field	Value
Publication number	US-12447111-B2
Application number	US-202318241728-A
Country	US
Kind code	B2
Filing date	Sep 1, 2023
Priority date	Mar 3, 2021
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

Some embodiments are directed to a connector for connection with a fluid transfer device, including an outer body having a longitudinal axis; and a luer lock connection port positioned within the outer body and configured to be coupled with an external port of said fluid transfer device. The luer lock connection port can be rotatable about the longitudinal axis at least in one of a clockwise direction and a counter-clockwise direction at least prior to initiation of coupling thereof with the external port. The outer body can be structured, and the luer lock connection port is positioned therewithin, such that to prevent an operator to access, through the outer body, directly by fingertips an exterior of the luer lock connection port after the luer lock connection port has been coupled with the external port.

First claim

The invention claimed is:

1. An adaptor configured for connection to a syringe, the syringe having a piston dividing an internal volume of the syringe into an air chamber and a liquid chamber, the syringe further comprising an air needle extending from the air chamber to an exterior of the syringe via a throat of the syringe, the adaptor being configured to facilitate discharge of air pressure from the air chamber of the syringe into ambiance when the adaptor is connected to the syringe and is in communication with the air chamber of the syringe during transfer of liquids, the adaptor comprising:
a liquid channel configured to be in communication with the liquid chamber of the syringe when the adaptor is connected to the syringe;
an air channel configured to at least partially receive therewithin the air needle to be in communication with the air chamber of the syringe via the air needle when the adaptor is connected to the syringe;
a first valve in fluid communication with the air channel, the first valve having a first valve open state at which it allows, when the air needle is at least partially received within the air channel, air in the air chamber of the syringe to escape into ambiance via the air needle and the air channel for discharging the air pressure from the air chamber of the syringe into the ambiance, and a first valve normally closed state.

2. The adaptor according to claim 1 , wherein the first valve is configured to automatically displace into the first valve open state in response to air pressure within the air channel exceeding a first predetermined threshold.

3. The adaptor according to claim 1 , wherein the first valve comprises a first valve seating member at least partially defining a first valve passage being in fluid communication with the air channel at said first valve open state, and a first valve sealing member engaging the first valve seating member at said first valve normally closed state thereby sealing said first valve passage, wherein at the first valve open state, the first valve sealing member at least partially disengages from the first valve seating member thereby unsealing the first valve passage.

4. The adaptor according to claim 3 , wherein the first valve passage defines at least a portion of a first fluid path extending between the air channel and the ambiance, the first fluid path being selectively sealable by the first valve at the first valve normally closed state, wherein the first valve, at the first valve normally closed state, seals the first fluid path, and at the first valve open state, unseals the first fluid path to allow air in the air channel to escape into the ambiance.

5. The adaptor according to claim 1 , further comprising a second valve in fluid communication with the air channel, and having a second valve open state at which it allows air to enter into the air channel from the ambiance, and a second valve normally closed state, wherein the second valve is configured to automatically displace into the second valve open state in response to air pressure within the air channel falling below a second pre-determined threshold lesser than the first predetermined threshold, wherein the second valve comprises a second valve seating member having a second valve passage being in fluid communication with the air channel at said second valve open state, and a second valve sealing member engaging the second valve seating member at said second valve normally closed state thereby sealing said second valve passage, wherein at the second valve open state, the second valve sealing member at least partially disengages from the second valve seating member thereby unsealing the second valve passage.

6. The adaptor according to claim 5 , wherein the second valve passage defines at least a portion of a second fluid path extending between the air channel and the ambiance, the second fluid path being selectively sealable by the second valve at the second valve normally closed state, wherein the second valve, at the second valve normally closed state, seals the second fluid path, and at the second valve open state, unseals the second fluid path to allow air to enter in the air channel from the ambiance.

7. The adaptor according to claim 5 , wherein the first valve and the second valve are positioned within a single common valve housing.

8. The adaptor according to claim 5 , wherein the first valve and the second valve are integrated as a single valve arrangement, wherein the valve arrangement comprises the first and second sealing members configured as a single integrated sealing member configured to displace the valve arrangement into a first valve open state at which it allows the air in the air channel to escape into the ambiance, a second valve open state at which it allows air to enter into the air channel from the ambiance, and a normal fully closed state, the valve arrangement being normally at the normal fully closed state, wherein the valve arrangement automatically displaces into the first valve open state in response to an air pressure within the valve arrangement rising above the first predetermined threshold, wherein the valve arrangement automatically displaces into the second valve open state in response to the air pressure within the valve arrangement falling below the second predetermined threshold, wherein the first predetermined threshold is greater than the second predetermined threshold.

9. The adaptor according to claim 8 , wherein the valve arrangement further comprises the first valve seating member and the second valve seating member, the single integrated sealing member having a sealing member first portion configured to selectively engage and at least partially disengage the first valve seating member thereby selectively sealing and unsealing the first valve passage, and a sealing member second portion configured to selectively engage and at least partially disengage the second valve seating member thereby selectively sealing and unsealing the second valve passage, wherein:
at the normal fully closed state, the sealing member first portion engages with the first valve seating member thereby sealing the first valve passage and the sealing member second portion engages with the second valve seating member thereby sealing the second valve passage;
at the first valve open state, the sealing member first portion at least partially disengages from the first valve seating member thereby unsealing the first valve passage, wherein at the first valve open state, the sealing member second portion engages with the second valve seating member, thereby sealing the second valve passage;
at the second valve open state, the sealing member second portion at least partially disengages from the second valve seating member thereby unsealing the second valve passage, wherein at the second valve open state, the sealing member first portion engages with the first valve seating member, thereby sealing the first valve passage; and
at the first valve open state, the valve arrangement allows the air to escape from within the valve arrangement to outside the valve arrangement via the first valve passage, and at the second valve open state, the valve arrangement allows the air to enter into the valve arrangement from outside the valve arrangement via the second valve passage.

10. The adaptor according to claim 9 , wherein at the first valve open state, the sealing member second portion engages with the second valve seating member further tighter as compared to that at the normally fully closed state; and
at the second valve open state, the sealing member first portion engages with the first valve seating member further tightly as compared to that at the normally fully closed state.

Assignees

• Equashield Medical Ltd

Inventors

• Kriheli Marino
• Tavor Raanan
• Shem-Tov Eric
• Dach Shlomi

Classifications

• A61M39/225

  Flush valves, i.e. bypass valves for flushing line · CPC title

• A61M39/1011

  Locking means for securing connection; Additional tamper safeties (A61M39/16 takes precedence) · CPC title

• A61J1/2065

  having aligning and guiding means · CPC title

• A61J1/2055

  having gripping means · CPC title

• A61J1/2034

  having separation clips · CPC title