Patents by Inventor Hwa Loon Chan

Hwa Loon Chan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220354400
    Abstract: Peripheral intravenous catheter assemblies with capabilities for both blood sampling and catheterization can have a blood collection holder with a needle hub attached to a catheter hub. The combination catheter assembly and blood sampling holder can be called a catheter and holder assembly. Blood sampling can be done directly through the needle and the blood collection holder after cannulation. After blood sampling, the blood collection holder and the needle can be removed, leaving the catheter hub with the patient for IV infusion. The catheter hub can be a straight catheter hub or can include a side fluid port for use in as an integrated IVC.
    Type: Application
    Filed: July 1, 2020
    Publication date: November 10, 2022
    Applicant: B. Braun Melsungen AG
    Inventors: Hui Kuun Teoh, Hwa Loon Chan
  • Patent number: 11173282
    Abstract: Catheter devices with a tube management system are described. The catheter devices can have a catheter hub, a port extending from the catheter hub, a needle hub, a septum for controlling fluid flow from the port to a distal opening of the catheter hub, and a flexible tubing extending from the port. A tube deflector at the port guides the flexible tubing from a closed position to an open position. Tube securing mechanisms formed on the catheter hub also guides the flexible tubing from the closed position to the open position. A needle guard is usable with the needle device to block a tip of the needle.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: November 16, 2021
    Assignee: B. Braun Melsungen AG
    Inventors: Hwa Loon Chan, Eng Keat Ong
  • Patent number: 10279108
    Abstract: The safety needle assembly comprises a housing including a proximal end and a distal end and defining an interior space. A barrel is rotatably received within the interior space of the housing. A needle hub is received within the proximal end of the housing. A needle, including a sharp distal tip, extends distally from the needle hub, through the barrel, and through the distal end of the housing. A safety shield defining a lumen is received within the interior space of the housing. The safety shield extends distally from the housing through the distal end of the housing. The needle extends through the lumen of the safety shield with the sharp distal tip exposed from the safety shield. A biasing member is received within the barrel and extends between the needle hub and the safety shield.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 7, 2019
    Assignee: B. Braun Melsungen AG
    Inventors: Teng Sun Teoh, Mohd Zairizal bin Zakaria, Hwa Loon Chan
  • Publication number: 20180154112
    Abstract: Catheter devices with a tube management system are described. The catheter devices can have a catheter hub, a port extending from the catheter hub, a needle hub, a septum for controlling fluid flow from the port to a distal opening of the catheter hub, and a flexible tubing extending from the port. A tube deflector at the port guides the flexible tubing from a closed position to an open position. Tube securing mechanisms formed on the catheter hub also guides the flexible tubing from the closed position to the open position. A needle guard is usable with the needle device to block a tip of the needle.
    Type: Application
    Filed: July 1, 2016
    Publication date: June 7, 2018
    Inventors: Hwa Loon Chan, Eng Keat Ong
  • Patent number: 9986943
    Abstract: Blood collection assemblies with safety features are disclosed. The assemblies have a housing for receiving a vacutainer, which has a septum that penetrates a sharp needle tip. The disclosed assemblies further have a shield for covering the other end of the needle following use to prevent accidental contact with the distal needle tip. The shield is spring loaded so that the spring force moves the shield over the needle. The shield can be secured or held in an initial position and allowed to move to cover the needle upon actuation or activation of an activator unit.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 5, 2018
    Assignee: B. Braun Melsungen AG
    Inventors: Mohd Zairizal Bin Zakaria, Hwa Loon Chan, Teng Sun Teoh, Ai-Mei Tan
  • Publication number: 20170202498
    Abstract: A safety needle blood sampling device (100) is provided with a needle (108) having a multi-sampling Luer adaptor (MSLA) mounted over an end thereof. A housing (110) sized and shaped to receive a blood sampling vial is provided so that when a vacutainer is inserted, the MSLA is compressed to puncture the septum with one of the ends of the needle. A protective shield (104) is provided to cover the needle. A helical spring (106) is provided to move the protective shield over the needle in a used position. An activator (112) is further provided that is sized and shaped to activate the shield upon insertion of the vacutainer.
    Type: Application
    Filed: May 27, 2015
    Publication date: July 20, 2017
    Applicant: B. Braun Melsungen AG
    Inventors: Ai-Mei Tan, Hwa Loon Chan, Teng Sun Teoh, Mohd Zairizal bin Zakaria
  • Publication number: 20170165417
    Abstract: The safety needle assembly comprises a housing including a proximal end and a distal end and defining an interior space. A barrel is rotatably received within the interior space of the housing. A needle hub is received within the proximal end of the housing. A needle, including a sharp distal tip, extends distally from the needle hub, through the barrel, and through the distal end of the housing. A safety shield defining a lumen is received within the interior space of the housing. The safety shield extends distally from the housing through the distal end of the housing. The needle extends through the lumen of the safety shield with the sharp distal tip exposed from the safety shield. A biasing member is received within the barrel and extends between the needle hub and the safety shield.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 15, 2017
    Applicant: B. Braun Melsungen AG
    Inventors: Teng Sun Teoh, Mohd Zairizal bin Zakaria, Hwa Loon Chan
  • Publication number: 20150366496
    Abstract: Blood collection assemblies with safety features are disclosed. The assemblies have a housing for receiving a vacutainer, which has a septum that penetrates a sharp needle tip. The disclosed assemblies further have a shield for covering the other end of the needle following use to prevent accidental contact with the distal needle tip. The shield is spring loaded so that the spring force moves the shield over the needle. The shield can be secured or held in an initial position and allowed to move to cover the needle upon actuation or activation of an activator unit.
    Type: Application
    Filed: June 20, 2014
    Publication date: December 24, 2015
    Inventors: Mohd Zairizal Bin Zakaria, Hwa Loon Chan, Teng Sun Teoh, Ai-Mei Tan
  • Publication number: 20150224286
    Abstract: Catheter securement devices are generally described for securing the catheter hub to the access site following successful catheterization. Examples of catheter assemblies with integrated securing mechanisms and related methods are disclosed. The integrated device provides convenience and easy to use access to securing devices that are integrated to the wings of the catheter assemblies.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 13, 2015
    Inventors: E-Jen Teh, Hwa Loon Chan