Patents by Inventor Changqing Li
Changqing Li 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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Publication number: 20200250129Abstract: A Remote Direct Memory Access (RDMA) data sending method is disclosed. The method is applicable to a sending end, with a data-transmission RDMA device disposed thereon. The method includes: the data-transmission RDMA device acquiring raw data; the data-transmission RDMA device compressing the raw data by using a preset compression method to obtain compressed data; and the data-transmission RDMA device encapsulating the compressed data into a data packet, and transmitting the data packet to a receiving end. The data packet may include a method tag corresponding to the preset compression method. In this method, the compression and transmission of the raw data are conducted by the data-transmission RDMA device on the hardware level.Type: ApplicationFiled: April 21, 2020Publication date: August 6, 2020Inventors: Yinchao ZOU, Changqing LI, Changhua HE, Peng WU, Jincan KONG
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Publication number: 20200236089Abstract: A Remote Direct Memory Access (RDMA) based data transmission method is disclosed. In this method, an RDMA network interface card is used to encrypt data to improve the security of data transmission. In addition, the data encryption and decryption operation is implemented inside the RDMA network interface card and is transparent to software, thereby ensuring security without adversely affecting performance of an application program.Type: ApplicationFiled: March 18, 2020Publication date: July 23, 2020Inventors: Changqing LI, Yinchao ZOU, Changhua HE, Peng WU, Jincan KONG
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Publication number: 20200146685Abstract: Provided is a release device for medical tissue clips, including an outer tube provided with a release member, a control wire, and at least one tissue clip; wherein the release member is connected to the distal end of the control wire; the at least one tissue clip is movably connected to the release member and the control wire; the tissue clip includes a clip base and a clip piece which is movably disposed inside the clip base; the tissue clip is in a locked state when the clip piece is retreated to the proximal end, and in an opened state when the clip piece moves forwards to the distal end; the clip base includes an elastic member which is in a compressed state when being located in the outer tube and in an opened state upon detachment from the outer tube to abut against an end of the outer tube.Type: ApplicationFiled: March 26, 2018Publication date: May 14, 2020Applicant: Micro-Tech (Nanjing) Co., Ltd.Inventors: Hongyan JIN, Derong LENG, Changqing LI, Weiqin QIU, Ran SONG
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Patent number: 9138234Abstract: A clip apparatus for ligature of living tissue is provided. The clip apparatus includes a clip that can be opened and closed multiple times prior to locking in a closed position on the tissue.Type: GrantFiled: November 13, 2012Date of Patent: September 22, 2015Assignee: ANREI MEDICAL (HZ) CO., LTD.Inventors: Changqing Li, Baiming Shi
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Patent number: 9078997Abstract: A catheter assembly including a medical catheter and an internal bolster. In a preferred embodiment, the catheter is an elongated, tubular structure preferably made of a flexible, biocompatible material. The catheter is shaped to include a generally cylindrical wall terminating in a first end and in a second end, the wall coaxially surrounding and defining a longitudinal bore preferably used to convey fluids, such as food and/or medications, to a patient in need thereof. The internal bolster is an elongated, semi-tubular structure preferably made of a flexible, biocompatible material. The bolster is resiliently and reversibly transformable between a generally planar shape, when at rest, and a straightened shape, when forcibly unfurled. The bolster has an inner end and an outer end, the inner end being generally centrally located.Type: GrantFiled: March 29, 2008Date of Patent: July 14, 2015Assignee: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Changqing Li, Ken Brown, Alan Sundheimer, Boyd Colvin
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Publication number: 20150009663Abstract: The present invention relates to an LED lamp tube with uniform luminance. The LED lamp tube with uniform luminance provided by the present invention comprises a lamp tube main body and a lamp holder connected to two ends of the lamp tube main body. A power supply is provided between the lamp tube main body and the lamp holder. The lamp tube main body comprises a light diffusion cover and a heat-dissipation casing engaged with each other to form a lamp cavity. A substrate with light emitting diodes provided thereon is disposed on the heat-dissipation casing. The maximum distance from the light emitting diodes to the light diffusion cover is larger than 50% of the total height of the lamp tube main body.Type: ApplicationFiled: March 8, 2013Publication date: January 8, 2015Inventors: Jiansheng Ye, Wei Zhu, Changqing Li, Chuanfu Li
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Publication number: 20140328581Abstract: A heater and a heating method for a wet extraction tank, said heater comprising a heating tube comprising a spiral glass tube with an air inlet and an air outlet; the air inlet is connected to a steam supply apparatus via a steam tube, and the air outlet is in communication with an apparatus containing micro-steam or hot water; the steam tube has with a pressure regulating valve for adjusting the steam pressure inside the heating tube; the glass tube is fixedly connected to the extraction tank by a wooden material fixed to the tank via a stainless steel bolt; the glass tube is fixed to the wooden material by wrapping and welding a heat and chemical resistant soft plastic sheeting. The heating method comprises maintaining the liquid inside the tank in a constant state of ebullition so that heat is evenly and uniformly distributed throughout the tank.Type: ApplicationFiled: April 9, 2012Publication date: November 6, 2014Inventors: Changqing Li, Jun Xu, Wuguo Zhang, Haibo Zhan
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Patent number: 8672859Abstract: Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.Type: GrantFiled: October 23, 2012Date of Patent: March 18, 2014Assignee: Boston Scientific Scimed, Inc.Inventors: Tyler Timberlake, Changqing Li, Otto Anderhub, Douglas M. Bontrager, Gerardo Martin, Robert B. DeVries
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Publication number: 20130123818Abstract: A clip apparatus for ligature of living tissue is provided. The clip apparatus includes a clip that can be opened and closed multiple times prior to locking in a closed position on the tissue.Type: ApplicationFiled: November 13, 2012Publication date: May 16, 2013Inventors: Changqing Li, Baiming Shi
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Patent number: 8439869Abstract: A method for percutaneously implanting a medical catheter, such as a gastrostomy feeding tube, and a medical catheter implanting assembly. In one embodiment, the implanting assembly includes a gastrostomy feeding tube, an inner sheath and an outer sheath. The feeding tube has an internal bolster integrally formed at its distal end. The inner sheath includes a bore extending distally from its proximal end to a point prior to its distal end and a transverse window communicating with the bore. The outer sheath includes a proximal end, a distal end and a longitudinal bore. The outer sheath is inserted over the inner sheath, and the feeding tube is inserted into the inner sheath, with the internal bolster being folded and tucked into the window and retained therein by the outer sheath. Movement of the outer sheath relative to the inner sheath to expose the window allows the bolster to decompress.Type: GrantFiled: September 21, 2011Date of Patent: May 14, 2013Assignee: Boston Scientific SCIMED, Inc.Inventors: Patrice A. Weststrate, Boyd A. Colvin, Changqing Li, Mark L. Adams, Donald C. Hovey, Laurence D. Brenner
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Publication number: 20130085412Abstract: Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.Type: ApplicationFiled: October 23, 2012Publication date: April 4, 2013Inventors: Tyler Timberlake, Changqing Li, Otto Anderhub, Douglas M. Bontrager, Gerardo Martin, Robert B. DeVries
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Publication number: 20130066230Abstract: Single piece biopsy forceps having jaws that are caused to open and close in response to longitudinal movement of an actuation rod. The single piece forceps are formed from a single metal blank with opposing jaw sections connected via a self-hinge. The metal blank includes a self-hinge portion, a channel section on either end of the hinge portion and a jaw section on distal ends of the channel sections. The jaws are formed from the jaw section of the metal blank and the channel sections are bent to provide generally U-shaped channel sections. The hinge portion is bent so that the jaws are oriented in opposed aligned relation. A fixed and a movable pin are disposed through slots in the channel sections. Movement of the movable pin with respect to the fixed pin via an actuator rod or wire causes the jaws of the biopsy forceps to open and close.Type: ApplicationFiled: September 11, 2012Publication date: March 14, 2013Inventors: Changqing Li, Matthew Otten
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Patent number: 8343760Abstract: The present invention relates to novel polypeptides that activate p53, and the polynucleotides encoding these p53 activator peptides. The present invention also relates to pharmaceutical compositions comprising the p53 activator peptides as well as methods of treating abnormal conditions, such as malignant tumors, with the methods comprising administering the pharmaceutical compositions of the present invention to a subject in need of treatment thereof.Type: GrantFiled: June 5, 2009Date of Patent: January 1, 2013Assignee: University of Maryland, BaltimoreInventors: Wuyuan Lu, Davide Zella, Min Liu, Changqing Li
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Patent number: 8317726Abstract: Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample.Type: GrantFiled: June 15, 2010Date of Patent: November 27, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Tyler Timberlake, Changqing Li, Otto Anderhub, Douglas M. Bontrager, Gerardo Martin, Robert B. DeVries
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Patent number: 8308713Abstract: A medical catheter assembly including a multi-piece connector. In one embodiment, the medical catheter assembly is a PEG implanting assembly comprising a tubular dilator and a silicone feeding tube having an internal bolster at its rear end. The assembly also comprises a multi-piece connector comprising an inner ring, a fitting and an outer ring. The inner ring has an outer diameter greater than the inner diameter of the feeding tube and is coaxially disposed within the feeding tube by a friction-fit. The fitting comprises a front portion, an intermediate portion and a rear portion, the intermediate portion including a shoulder having an outer diameter greater than the inner diameter of the feeding tube. The front portion of the fitting is inserted through the rear end of the dilator and is secured to the dilator by a plurality of barbs.Type: GrantFiled: March 23, 2009Date of Patent: November 13, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Changqing Li, Gary Wood, Herbert Alan Sundheimer, Laddvanh Bouphavichith, Patrice A. Weststrate, Laurence D. Brenner
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Publication number: 20120283643Abstract: A catheter assembly includes an internal bolster comprising a plurality of resilient members collectively forming an anchor at a first end of the catheter. Each resilient member is reversibly transformable between a spiral shape, when at rest, and a straightened shape, when forcibly unfurled. The catheter assembly may be used in a method for inserting a gastrostomy tube into a patient. The catheter assembly is inserted into the patient's stomach with the resilient members in the unfurled straightened state. Once the resilient members have entered the patient, the resilient members are allowed to return to the relaxed spiral shape, thereby anchoring the catheter assembly in the patient.Type: ApplicationFiled: May 8, 2012Publication date: November 8, 2012Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Changqing LI, Gene McCALLISTER
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Patent number: 8192419Abstract: A catheter assembly including an internal bolster. According to one embodiment, the catheter assembly includes a medical catheter preferably made of extruded silicone rubber. The catheter is shaped to include a cylindrical wall defining a primary longitudinal bore. A plurality of secondary longitudinal bores is provided in the cylindrical wall, the secondary bores being evenly spaced around the primary bore. The assembly also includes a plurality of identical resilient members collectively forming an anchor at a first end of the catheter. Each resilient member comprises a resilient wire and a protective jacket. Each wire is made of a shape-memory material and is reversibly transformable between a spiral shape, when at rest, and a straightened shape, when forcibly unfurled. One end of each wire is disposed within a secondary bore of the catheter, with the remainder of each wire extending out from the catheter.Type: GrantFiled: December 21, 2010Date of Patent: June 5, 2012Assignee: Boston Scientific Scimed, Inc.Inventors: Changqing Li, Gene McCallister
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Publication number: 20120010570Abstract: A method for percutaneously implanting a medical catheter, such as a gastrostomy feeding tube, and a medical catheter implanting assembly. In one embodiment, the implanting assembly includes a gastrostomy feeding tube, an inner sheath and an outer sheath. The feeding tube has an internal bolster integrally formed at its distal end. The inner sheath includes a bore extending distally from its proximal end to a point prior to its distal end and a transverse window communicating with the bore. The outer sheath includes a proximal end, a distal end and a longitudinal bore. The outer sheath is inserted over the inner sheath, and the feeding tube is inserted into the inner sheath, with the internal bolster being folded and tucked into the window and retained therein by the outer sheath. Movement of the outer sheath relative to the inner sheath to expose the window allows the bolster to decompress.Type: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Applicant: BOSTON SCIENTIFIC SCIMED, INC.Inventors: Patrice A. WESTSTRATE, Boyd A. COLVIN, Changqing LI, Mark L. ADAMS, Donald C. HOVEY, Laurence D. BRENNER
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Patent number: 8043261Abstract: A method for percutaneously implanting a medical catheter, such as a gastrostomy feeding tube, and a medical catheter implanting assembly. In one embodiment, the implanting assembly includes a gastrostomy feeding tube, an inner sheath and an outer sheath. The feeding tube has an internal bolster integrally formed at its distal end. The inner sheath includes a bore extending distally from its proximal end to a point prior to its distal end and a transverse window communicating with the bore. The outer sheath includes a proximal end, a distal end and a longitudinal bore. The outer sheath is inserted over the inner sheath, and the feeding tube is inserted into the inner sheath, with the internal bolster being folded and tucked into the window and retained therein by the outer sheath. Movement of the outer sheath relative to the inner sheath to expose the window allows the bolster to decompress.Type: GrantFiled: December 17, 2009Date of Patent: October 25, 2011Assignee: Boston Scientific Scimed, Inc.Inventors: Patrice A. Weststrate, Boyd A. Colvin, Changqing Li, Mark L. Adams, Donald C. Hovey, Laurence D. Brenner
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Publication number: 20110183917Abstract: The present invention relates to novel polypeptides that activate p53, and the polynucleotides encoding these p53 activator peptides. The present invention also relates to pharmaceutical compositions comprising the p53 activator peptides as well as methods of treating abnormal conditions, such as malignant tumors, with the methods comprising administering the pharmaceutical compositions of the present invention to a subject in need of treatment thereof.Type: ApplicationFiled: June 5, 2009Publication date: July 28, 2011Inventors: Wuyuan Lu, Davide Zella, Min Liu, Changqing Li