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).
-
Publication number: 20220339158Abstract: A combined drug contains hypoxanthine and human immunoglobulin (HIg). HIg has a therapeutic effect on radiation injuries, and the combination of hypoxanthine and HIg can further enhance this therapeutic effect. The combination drug can be administered to patients undergoing radiotherapy and to those who accidentally have excessive irradiation.Type: ApplicationFiled: July 11, 2022Publication date: October 27, 2022Inventors: Zongkui WANG, Ming CUI, Changqing LI, Jun XU, Lu CHENG
-
Publication number: 20220338491Abstract: A device for threading a skewer through an elastic sausage is provided, which includes a driving component, material placing templates, a pressing component, a push plate and a pressing bar. The driving component is connected with the pressing component. The pressing component is provided above the material placing templates. Pressing blocks which are transversely and appositionally arranged are provided in the pressing component. The pressing bar is provided above the pressing blocks. The push plate is provided on a side of the material placing templates and is connected with the driving component and the pressing bar.Type: ApplicationFiled: December 21, 2021Publication date: October 27, 2022Inventors: Changqing LI, Tuqing QIN
-
Publication number: 20220316471Abstract: Provided are a pressure-pump cartridge and a pressure pump, where the pressure-pump cartridge includes a cylinder, where the cylinder has a first chamber, a piston chamber and a second chamber hat are in communication in sequence, and the piston chamber is used for being in sealing fit with a piston. An end of the first chamber remote from the piston chamber is provided with a first opening allowing entry of the piston, and during installation, the piston enters the first chamber by the first opening and enters the piston chamber after passing through the first chamber, and meanwhile, the first chamber is configured to be in a clearance fit with the piston, such that the size of the first chamber is larger than that of the piston.Type: ApplicationFiled: June 16, 2022Publication date: October 6, 2022Inventors: Hongyan JIN, Hui LIU, Jinwei PANG, Derong LENG, Changqing LI, Jiefeng XI, Ning LI, Chunjun LIU, Zhi TANG, Jianyu WEI
-
Publication number: 20220305092Abstract: The use of lysozyme or combinations comprising the lysozyme in preparing a medicament for preventing or treating the novel coronavirus pneumonia COVID-19 and in preparing a food for assisting in preventing or treating the novel coronavirus pneumonia COVID-19 is disclosed. The lysozyme or the combination of the lysozyme, as provided by the present invention, can effectively inhibit cell damage caused by the novel coronavirus, inhibit the inflammatory factors expression induced by the novel coronavirus, ameliorate airway obstruction and decreased expiratory volume caused by lung lesions, and ameliorate intestinal barrier dysfunction. The lysozyme or the combination of the lysozyme has good effects on patients with high viral load, respiratory distress, impaired intestinal function, etc., and can reduce the novel coronavirus infection rate and the incidence rate of severe novel coronavirus pneumonia.Type: ApplicationFiled: May 9, 2020Publication date: September 29, 2022Applicants: GUANGZHOU CENTURY CLINICAL RESEARCH CO., LTD, GUANGZHOU XIN-CHUANGYI BIOPHARMACEUTICAL CO., LTD, GUANGZHOU WELMAN NEW DRUG R&D CO., LTD., XIANGBEI WELMAN PHARMACEUTICAL CO., LTD, NANJING KANGFUSHUN PHARMACEUTICAL CO., LTDInventors: Mingjie SUN, Tianyu SUN, Changqing LI
-
Publication number: 20220304669Abstract: Disclosed are a channel device for surgery and a trigger structure. It aims at improving the problem that the operational efficiency of existing channel devices for surgery is not high. The channel device for surgery includes: a binding cord configured to be wound around a metal net; and a binding wire configured to pass through the binding cord and tighten up the binding cord, so as to compress the metal net, or configured to be pulled away from the binding cord, so as to loosen the binding cord and the metal net. In the trigger structure, different first locking portions are configured to cooperate with a first engaging portion, so as to drive the trolley to slide intermittently relative to the handle, such that a second engaging portion cooperates with different second locking portions, hereby locking the sliding trolley in different positions on the handle.Type: ApplicationFiled: April 15, 2020Publication date: September 29, 2022Inventors: Derong LENG, Zhuhai LV, Wenqi LV, Changqing LI, Long LONG, Jianyu WEI, Chengwei TANG, Li DING
-
Publication number: 20220257250Abstract: A tissue clamping and closing device for passing through an endoscope, including: a clamp having at least two clamp legs; a control line separably connected to a through hole at the proximal end of the clamp; an axial sheath arranged around the control line; a sleeve configured to accommodate the proximal end portion of the clamp and separably connected to the distal end of the axial sheath; a retainer configured to retain a connection between the sleeve and the axial sheath and implement the separation of the sleeve from the axial sheath through the deformation of the retainer under the action of the control line a control mechanism connected to the proximal end of the axial sheath and the proximal end of the control line; wherein the control line can control the at least two clamp legs of the clamp to be opened or closed through the control mechanism.Type: ApplicationFiled: February 29, 2020Publication date: August 18, 2022Inventors: Hongyan Jin, Derong Leng, Changqing Li, Ning Li, Zhi Tang, Jiefeng Xi, Jianyu Wei
-
Publication number: 20220233179Abstract: A device and method for catching a biological specimen removed from an individual. The device includes at least an inlet channel; an outlet channel; a main chamber having an interior wall and an exterior wall, wherein the main chamber is in fluid communication with the inlet channel and is in fluid communication with the outlet channel; and a receiving structure attached to at least a portion of the interior wall or the exterior wall of the main chamber and positioned such that it does not obstruct either the inlet channel or the outlet channel, wherein the receiving structure is further configured to receive a light emitting body for illuminating the main chamber of the device before catching the biological specimen removed from an individual. The device is connected to a medical scope and a vacuum system. When the device is placed under suction, the biological specimen is extracted and trapped on the removable filter of the device.Type: ApplicationFiled: April 15, 2022Publication date: July 28, 2022Inventors: Karl Allen, Patrick Strane, Lei Xie, Changqing Li, Zhenghua Shen, Scott Haack, Jiefeng Xi, Fengxue Zhou
-
Publication number: 20220193104Abstract: A compound for regulating body weight imbalance, a composition thereof and an application thereof. The inventor unexpectedly discovered that diosmin hydrogen sulfate derivatives have the effects of regulating body weight imbalance, and are expected to be developed as safe and effective weight imbalance regulators or used as synergists to improve the regulatory effects of existing weight imbalance regulators.Type: ApplicationFiled: April 24, 2020Publication date: June 23, 2022Applicants: GUANGZHOU CENTURY CLINICAL RESEARCH CO., LTD, GUANGZHOU XIN-CHUANGYI BIOPHARMACEUTICAL CO., LTD, XIANGBEI WELMAN PHARMACEUTICAL CO., LTD, GUANGZHOU WELMAN NEW DRUG R&D CO., LTD., NANJING KANGFUSHUN PHARMACEUTICAL CO., LTDInventors: Tianyu SUN, Mingjie SUN, Guixing DENG, Changqing LI
-
Patent number: 11363941Abstract: An overtube device and an endoscope assembly are provided, the overtube device includes an overtube body having a proximal end and a distal end, the overtube body is provided with a bore which extending from the distal end to the proximal end of the overtube body, the bore is configured to allow a passing portion of the endoscope assembly to pass therethrough; a pulling lumen is formed in the overtube body, which extends from the distal end to the proximal end of the overtube body, the pulling lumen is configured to allow a pulling part to pass therethrough, and the distal end of the pulling part is fixed with the distal end of the overtube body.Type: GrantFiled: June 24, 2020Date of Patent: June 21, 2022Assignees: MICRO-TECH (NANJIN) CO., LTD.Inventors: Arthur John Kaffes, Changqing Li, Chunxia Shi, Jianyu Wei, Zhenghua Shen
-
Publication number: 20220134067Abstract: A medical drainage stent that includes a stent body, and a proximal portion and a distal portion that are located at two ends of the stent body for connecting a first tissue wall and a second tissue wall in a juxtaposing manner. The stent body is fixed between the first tissue wall and the second tissue wall to provide a drainage channel. The proximal portion of the stent has N extension portions, where a fixed end of the extension portion is fixedly connected with an edge of a proximal end of the stent body, and the other end of the extension portion is a free end in a free state. Structures of the N extension portions at least partially protrude from the stent body in a radial direction, so that the proximal portion of the stent is fixed on the first tissue wall, where N is a positive integer.Type: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: Micro-Tech (Nanjing) Co., Ltd.Inventors: Derong LENG, Yuqian LI, Yimin SUN, Yidong SUN, Changqing LI, Ning LI, Chunjun LIU
-
Publication number: 20220125448Abstract: Disclosed is a stone extraction basket, comprising a mesh basket (1), an outer tube (2) and an operation portion (10), wherein the mesh basket (1) is connected to the operation portion (10), and the operation portion (10) can control the mesh basket (1) to move; a proximal end of the outer tube (2) is connected to the operation portion (10), the outer tube axially extends from the proximal end to a distal end, and the distal end of the outer tube (2) is provided with a double lumen end cap (5); and a guide wire (4) passing through one lumen channel (B7) of the double lumen end cap (5), and the mesh basket (1) passes through the other lumen channel (A6) of the double lumen end cap (5). The stone extraction basket solves the existing technical problem of the mesh basket being hampered from removing a calculus and being withdrawn from the biliary tract because the guide wire is driven by the end cap at the distal end of the mesh basket.Type: ApplicationFiled: September 4, 2019Publication date: April 28, 2022Applicant: MICRO-TECH (NANJING) CO., LTD.Inventors: Chaowei XU, Xiaochun LI, Changqing LI, Derong LENG, Chunjun LIU
-
Patent number: 11311705Abstract: The present invention provides a medical pressurization control device, comprising an outer tube and a threaded push rod inside the outer tube. A movable caliper comprising two arms, a caliper control member connected to the movable caliper, and an operating member connected to the caliper control member are provided in the outer tube; when the operating member moves from a second position to a first position, the operating member drives the caliper control member to move to a locking position, so as to push the two arms of the movable caliper to hold the threaded push rod for locking the threaded push rod; when the operating member moves from the first position to the second position, the operating member drives the caliper control member to move to a release position, so as to push the two arms of the movable caliper to release the threaded push rod for unlocking the threaded push rod.Type: GrantFiled: March 5, 2018Date of Patent: April 26, 2022Assignee: MICRO-TECH (NANJING) CO., LTD.Inventors: Hongyan Jin, Weiqin Qiu, Changqing Li
-
Publication number: 20220054156Abstract: A slide slot type multi-arm clamp includes a handle, a catheter, a clamping portion, a spring tube and a control line. In practical applications, a surgical operator applies an axial thrust and a pulling force to the handle to drive the control line to move, so as to open/close and lock the clamping portion. Moreover, side clamp arms and a clamp base in the clamping portion can be easily separated from the catheter or the spring tube to stay in a human body so as to achieve the functions of hemostasis and tissue suture. The side slot type multi-arm clamp can achieve the effect of minimizing the length of the instrument retained in the human body by the cooperation between the side clamp arms and the clamp base.Type: ApplicationFiled: November 3, 2021Publication date: February 24, 2022Applicant: Micro-Tech (Nanjing) Co., Ltd.Inventors: Zhi TANG, Mingqiao FAN, Hongyan JIN, Ning LI, Changqing LI, Jiefeng XI, Jianyu WEI
-
Publication number: 20220050032Abstract: The present application provides a sample collecting device and a sample collecting apparatus. The sample collecting device includes a housing assembly with a cavity and a filtering unit disposed in the cavity, where the housing assembly is provided with a collecting hole and a suction hole, both of which are communicated with the cavity, the suction hole is communicated with the collecting hole through the filtering unit, the housing assembly is provided with a gateway on its side wall, and at least part of the filtering unit is configured to be moved to an outside of the housing assembly through the gateway. The present application can greatly improve efficiency of sample collection and effectively save the time of medical workers.Type: ApplicationFiled: October 27, 2021Publication date: February 17, 2022Applicant: MICRO-TECH (NANJING) CO., LTD.Inventors: Scott HAACK, Jianjun SHUANG, Zhenghua SHEN, Weiqin QIU, Jie HU, Changqing LI, Minghao FENG
-
Patent number: 11224440Abstract: 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: GrantFiled: March 26, 2018Date of Patent: January 18, 2022Assignee: MICRO-TECH (NANJING) CO., LTD.Inventors: Hongyan Jin, Derong Leng, Changqing Li, Weiqin Qiu, Ran Song
-
Publication number: 20220000344Abstract: A medical connecting device, having a proximal end and a distal end; the medical connecting device includes an insulating layer (3, 123, 222, 322) and a spiral tube (2, 124, 223, 323), the insulating layer (3, 123, 222, 322) covering the outermost layer of the whole device; the spiral tube (2, 124, 223, 323) has a conductive hollow tubular structure; and the spiral tube (2, 124, 223, 323) has a spiral structure, and a pitch of the spiral structure gradually changes in the direction from the proximal end to the distal end. The medical connecting device is able to integrate multiple functions such as electricity conducting, liquid passage, powder spraying, negative pressure suction, sealing, insulation, and support.Type: ApplicationFiled: February 25, 2019Publication date: January 6, 2022Inventors: Zhi Tang, Mingqiao Fan, Huan Xle, Deqing Sha, Changqing Li, Derong Leng, Chunjun Liu
-
Publication number: 20210386500Abstract: The limiting device includes a clamping portion and a movable portion; the clamping portion and the movable portion are both annular structures, two ends of the clamping portion and the movable portion are respectively connected to form a connected double-ring structure, and the ring diameter of the movable portion is larger than that of the clamping portion. The limiting device is disposed on a core rod, the clamping portion and the core rod are in interference fit, and the movable portion and the core rod are in clearance fit. When the movable portion cooperates with the core rod, the limiting device may slide relative to the core rod; when the clamping portion cooperates with the core rod, the limiting device and the core rod are in a fixed state, and the limiting device cannot slide relative to the core rod, thus achieving the purpose of limiting.Type: ApplicationFiled: December 6, 2019Publication date: December 16, 2021Inventors: Xiaochun Li, Chaowei Xu, Changqing Li, Derong Leng, Chunjun Liu
-
Publication number: 20210392187Abstract: Implementations of this disclosure provide data transmission operations and network interface controllers. An example method performed by a first RDMA network interface controller includes obtaining m data packets from a host memory of a first host; sending the m data packets to a second RDMA network interface controller of a second host; backing up the m data packets to a network interface controller memory integrated into the first RDMA network interface controller; determining that the second RDMA network interface controller does not receive n data packets of the m data packets; and in response, obtaining the n data packets from the m data packets that have been backed up to the network interface controller memory integrated into the first RDMA network interface controller, and retransmitting the n data packets to the second RDMA network interface controller.Type: ApplicationFiled: August 26, 2021Publication date: December 16, 2021Applicant: Advanced New Technologies Co., Ltd.Inventors: Changqing Li, Yinchao Zou, Peng Wu, Jincan Kong
-
Publication number: 20210322192Abstract: Provided is a medical device implantation apparatus, comprising: an outer sheath (4), connected to a first portion of a handle (6) and extending from a proximal end to a distal end; a middle sheath (3), the middle sheath (3) being arranged in the outer sheath (4), and the middle sheath (3) being connected to a second portion of the handle (6); an inner sheath (2), the inner sheath (2) being allowed to pass through the middle sheath (3), the inner sheath (2) being connected to a third portion of the handle (6), and the inner sheath (2) being movable relative to the outer sheath (4); outer casings (1), with at least two outer casings being provided, and a distal end of the inner sheath (2) being respectively fixedly connected to the outer casings (1); and a medical device, arranged around the inner sheath (2) and partially accommodated in the outer casings (1). The medical device can be released by manipulating the third portion of the handle (6).Type: ApplicationFiled: August 23, 2019Publication date: October 21, 2021Inventors: Yuqian Li, Huan Liu, Derong Leng, Yongxue Zhou, Changqing Li, Chunjun Liu
-
Publication number: 20210321755Abstract: The disclosure provides a cleaning brush configured to clean a working channel of the endoscope. The cleaning brush comprises a first joint, a second joint and a plurality of cleaning units, the plurality of cleaning units are sequentially connected, each cleaning unit comprises a cleaning portion configured to be in contact with the working channel of the endoscope, and the hardness of the cleaning portions of at least two cleaning units in the plurality of cleaning units is different. The first joint and the second joint are respectively connected with two outermost cleaning units in the plurality of cleaning units, and the first joint and the second joint are configured to be connected to make a ring-shaped cleaning brush. The cleaning brush is efficient in removing bioburden from the working channel of an endoscope.Type: ApplicationFiled: March 23, 2021Publication date: October 21, 2021Applicant: MICRO-TECH (NANJING) CO., LTD.Inventors: Scott HAACK, Jianjun SHUANG, Zhenghua SHEN, Changqing LI, Minghao FENG