Patents by Inventor Steven Choon Meng Lau
Steven Choon Meng Lau 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).
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Patent number: 9308331Abstract: A syringe including a barrel and a plunger slidably disposed within the barrel is disclosed. A distal end of the barrel defines a roof, and an elongate tip, in fluid communication with the barrel, extends from the roof. A protrusion forming a ridge may be disposed on one of the roof of the barrel and the plunger head. When the plunger head contacts the roof, the protrusion forms a channel between the plunger head and the roof. The channel isolates fluid within the channel from the elongate tip, which in turn reduces the spray of fluid through the distal end of the syringe. In another embodiment to reduce the spray of fluid through the distal end of the syringe, an impulse reduction system may be used to reduce or prevent the proximal portion from applying a distally directed impulse to the distal portion after the breakable connection is broken.Type: GrantFiled: June 7, 2012Date of Patent: April 12, 2016Assignee: Becton, Dickinson and CompanyInventors: Kiang Heng Lim, Steven Choon Meng Lau, Jon Yao Han Moh
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Publication number: 20120259280Abstract: A syringe including a barrel and a plunger slidably disposed within the barrel is disclosed. A distal end of the barrel defines a roof, and an elongate tip, in fluid communication with the barrel, extends from the roof. A protrusion forming a ridge may be disposed on one of the roof of the barrel and the plunger head. When the plunger head contacts the roof, the protrusion forms a channel between the plunger head and the roof. The channel isolates fluid within the channel from the elongate tip, which in turn reduces the spray of fluid through the distal end of the syringe. In another embodiment to reduce the spray of fluid through the distal end of the syringe, an impulse reduction system may be used to reduce or prevent the proximal portion from applying a distally directed impulse to the distal portion after the breakable connection is broken.Type: ApplicationFiled: June 7, 2012Publication date: October 11, 2012Applicant: Becton, Dickinson and CompanyInventors: Kiang Heng Lim, Steven Choon Meng Lau, Jon Yao Han Moh
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Patent number: 8202257Abstract: A syringe including a barrel and a plunger slidably disposed within the barrel is disclosed. A distal end of the barrel defines a roof, and an elongate tip, in fluid communication with the barrel, extends from the roof. A protrusion forming a ridge may be disposed on one of the roof of the barrel and the plunger head. When the plunger head contacts the roof, the protrusion forms a channel between the plunger head and the roof. The channel isolates fluid within the channel from the elongate tip, which in turn reduces the spray of fluid through the distal end of the syringe. In another embodiment to reduce the spray of fluid through the distal end of the syringe, an impulse reduction system may be used to reduce or prevent the proximal portion from applying a distally directed impulse to the distal portion after the breakable connection is broken.Type: GrantFiled: September 30, 2005Date of Patent: June 19, 2012Assignee: Becton, Dickinson and CompanyInventors: Kiang Heng Lim, Steven Choon Meng Lau, Jon Yao Han Moh
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Patent number: 7052482Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. The barbs are preferably positioned on the edge portions of opposing legs that form part of the locking element.Type: GrantFiled: August 1, 2003Date of Patent: May 30, 2006Assignee: Becton, Dickinson and CompanyInventors: Steven Choon Meng Lau, Chui Khim Chua, Yaohan Moh
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Patent number: 6991618Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. The barbs are preferably positioned on the edge portions of opposing legs that form part of the locking element.Type: GrantFiled: July 19, 2002Date of Patent: January 31, 2006Assignee: Becton Dickinson and CompanyInventors: Steven Choon Meng Lau, Chui Khim Chua, Yaohan Moh
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Patent number: 6986756Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. Structure provided for holding the proximal end and the distal end of the plunger rod assembly together during normal use of the syringe is breakable upon application of an additional force applied to the proximal end of the plunger rod.Type: GrantFiled: June 3, 2003Date of Patent: January 17, 2006Assignee: Becton, Dickinson and CompanyInventors: Brian J. Pelkey, Steven Choon Meng Lau, Chui Khim Chua, Yaohan Moh
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Publication number: 20040073166Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. The barbs are preferably positioned on the edge portions of opposing legs that form part of the locking element.Type: ApplicationFiled: August 1, 2003Publication date: April 15, 2004Inventors: Steven Choon Meng Lau, Chui Khim Chua, Ya Han Moh
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Publication number: 20040024357Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. Structure provided for holding the proximal end and the distal end of the plunger rod assembly together during normal use of the syringe is breakable upon application of an additional force applied to the proximal end of the plunger rod.Type: ApplicationFiled: June 3, 2003Publication date: February 5, 2004Inventors: Brian J. Pelkey, Steven Choon Meng Lau, Chui Khim Chua, Yaohan Moh
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Publication number: 20030060759Abstract: A single use syringe assembly is provided as well as a locking element for such an assembly. The single use syringe assembly includes a barrel, a plunger rod assembly and a locking element positioned within the barrel. The locking element includes one or more barbs for engaging the inside surface of the barrel. The barbs prevent the locking element from moving proximally within the barrel, but allow its distal movement therein with the plunger rod assembly. A spring member may be provided for urging the barbs towards the inside surface of the barrel. The barbs are preferably positioned on the edge portions of opposing legs that form part of the locking element.Type: ApplicationFiled: July 19, 2002Publication date: March 27, 2003Inventors: Steven Choon Meng Lau, Chui Khim Chua, Yaohan Moh