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43results about How to "Reduce trauma area" patented technology
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Method for preparing shape memory alloy intravascular stent based on automatic powder laying laser combination machining technology
ActiveCN105033252AReduce trauma areaSmall size errorAdditive manufacturing apparatusIncreasing energy efficiencyBiological tissuePercent Diameter Stenosis
The invention discloses a method for preparing a shape memory alloy intravascular stent based on the automatic powder laying laser combination machining technology. The method comprises the steps that according to a three-dimensional data model of a part to be machined, a high-energy laser beam melting and mixing powder system is utilized, the manner of laying powder layer by layer and carrying out fusing overlaying accumulation layer by layer is carried out until a intravascular stent blank of a mesh structure is formed finally, and then electrochemical polishing is carried out to reach the specific surface roughness requirement. The intravascular stent prepared through the method is based on the unique superelasticity function and the shape memory effect of shape memory alloy, and the occurrence rate of vascular restenosis of the intravascular stent in clinical application can be effectively reduced; by means of mechanical performance and living body environment simulation tests, the intravascular stent has the good biological tissue and blood compatibility and meets the medical application condition; furthermore, based on the advantage of superhigh manufacturing precision of the laser combination machining technology and protection of inert gas in the forming process, the problems of surface roughness, burr, oxidation and the like of a traditional intravascular stent in the preparing process are effectively solved.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +2
Wnt4/YWHAZ co-modified mesenchymal stem cell (MSC) derived exosome, preparation method therefor and application of Wnt4/YWHAZ co-modified MSC derived exosome
ActiveCN110734896AReduce trauma areaPromote regenerationPeptidesSkeletal/connective tissue cellsSkin repairMesenchymal stem cell
The invention provides a Wnt4 / YWHAZ co-modified mesenchymal stem cell (MSC) derived exosome, a preparation method therefor and an application of the Wnt4 / YWHAZ co-modified MSC derived exosome and belongs to the technical field of skin repair. According to the Wnt4 / YWHAZ co-modified MSC derived exosome, the MSC derived exosome (MSC-exosome) is modified through overexpression of expression adenovirus vectors of a gene Wnt4 and a gene YWHAZ in mesenchymal stem cells, so that exosome over-expresses the gene Wnt4 and the gene YWHAZ, and the medicinal aim of promoting regenerating repair of rat scalded skin tissue by the MSC-exosome is achieved.
Owner:AFFILIATED HOSPITAL OF JINING MEDICAL UNIV
A suction drainage device for breast surgical operation
InactiveCN109157685ARelieve painReduce secondary damageMedical devicesIntravenous devicesSurgical operationPipette
A mammary gland surgical negative pressure drainage device The invention relates to the technical field of medical devices, comprising a measuring cylinder, wherein a rubber plug is sleeved in the measuring cylinder, the right side of the rubber plug is fixedly connected with one end of a dose push rod, and the other end of the dose push rod is fixedly connected with a handle, and the handle is positioned on the right side of the measuring cylinder, and the lower surface of the measuring cylinder is clamped with a third sealing plug ring. A mammary gland surgical negative pressure drainage device By setting ball valves and plugs, the ball valve is moved into the pipette by the spring force of the spring, the stopper is then opened and the dose push rod is pushed leftward by the handle, Further, the liquid accumulated in the measuring cylinder can be discharged through the liquid outlet pipe, and when the liquid is pumped again, the stopper is sent into the liquid outlet pipe to repeatthe above operation, so that the medical personnel only need to insert a long sharp needle once when the liquid is pumped for many times, thereby not only reducing the pain of the patient, but also alleviating the secondary injury to the patient caused by the puncture.
Owner:THE AFFILIATED HOSPITAL OF QINGDAO UNIV
Femoral head prosthesis
InactiveCN104887353AImprove wear resistanceGood biocompatibilityJoint implantsFemoral headsRight femoral headFemoral head prosthesis
The invention discloses a femoral head prosthesis. The femoral head prosthesis is implanted and fixed on the femoral head in the body of a patient; a plurality of lugs (2) are arranged on the side surface of the femoral head prosthesis (1); the lugs (2) can be inserted into the femoral head to fix the femoral head prosthesis (1); bone trabeculas (4) are arranged on the two sides of the lugs (2) and in contact with the femoral head; the surfaces of the bone trabeculas are rough surfaces so that the femoral head prosthesis can be fixed in the femoral head. The femoral head prosthesis is used for overcoming the current situation that the whole hip joint needs to be replaced for the existing femoral head necrosis and no femoral stem and whole acetabulum are needed; for the femoral head necrosis due to pathological changes, the necrotic femoral head part is just cut off and replaced, and the good femoral head is retained; as a result, the problem of stability at later stage of a young patient due to large bone cut-off amount; the femoral head prosthesis is wider in application range for patients; the prosthesis can be implanted more conveniently, the wound area is small, and a good bone ingrowth property is achieved; besides, the curative effect at later stage is more remarkable.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR
Single-ankle type knee joint prosthesis
The invention relates to a single-ankle type knee joint prosthesis which comprises components of an ankle base with a sinking hole and / or through hole, wherein the ankle base comprises a chamber outerpart, a boss type chamber inner part and a fin type chamber inner part, wherein the chamber outer part comprises a first bone surface copying surface, a first folding surface, a joint bone top surface and a joint bone side surface, the boss type chamber inner part is arranged on the joint bone top surface, and the fin type chamber inner part is arranged on the joint bone side surface; and an ankle cap which comprises a second bone surface copying surface and a second folding surface, wherein the second folding surface is in matched connection with the first folding surface and the ankle cap packages the bottom end of the ankle base. and the second bone surface copying surface can be independently used as a femur ankle joint surface and is in matched splicing with the first bone surface copying surface. The single-ankle type knee joint prosthesis can match the tibia of a patient, thereby preventing tibia cutting operation of a patient with femur ankle lesion and without tibia lesion inknee joint displacement surgery by a doctor, effectively reducing bone cutting operation difficulty and loss amount of high-quality sclerotin, reducing wound area caused by the surgery, and shortening an after-surgery recovering time length.
Owner:BEIJING CHUNLIZHENGDA MEDICAL INSTR
Endoscopic stomach wall suturing and ligating device
InactiveCN103211633AEnsure implementationRelieve painSuture equipmentsInternal osteosythesisAbdominal cavityStomach walls
The invention discloses a device capable of easily and endoscopically suturing and ligating a stomach wall, which comprises a suture line, two stomach wall puncture needles for puncturing the stomach wall, an abdominal cavity puncture needle for puncturing an abdominal cavity, a knotter and a pair of ligature forceps. By puncturing of the abdominal cavity and the stomach wall, both ends of the suture line respectively pass through both sides of a wound of the stomach wall from the outside of the stomach wall; and the suture line is knotted in the stomach to complete suturing and ligating the stomach wall, so that endoscopic suture and ligation of the stomach wall are implemented and implementation of a minimally invasive surgery is ensured. With the adoption of the device, suturing operation is easier to carry out; pain of a patient can be greatly relieved; and the area of the wound of the patient is reduced.
Owner:陆军 +1
Medical laser thermal therapy target head based on graphite-based composite thermal conductive material
ActiveCN108671416APrevent overheating or even burningImprove the continuous heat conduction effectRadiation therapyFiberThermal deposition
The invention discloses a medical laser thermal therapy target head based on a graphite-based composite thermal conductive material. The medical laser thermal therapy target head comprises a protective jacket, an inner heat insulating layer, heat conductive bands and an outer heat insulating layer. The front end of the protective jacket is provided with an end head, and the back end is provided with a connecting body. A side part of the connecting body and the center of the back end part of the connecting body are respectively provided with openings which communicate through a channel. A fiberextends into the opening of the center of the back end part of the connecting body and reaches the opening of the side part of the end head. The inner heat insulating layer coats the outer peripheryof the fiber at the back end of the connecting body. The multiple layers of heat conductive bands are spaced apart at the outer periphery of the heat insulating layer, and each layer of heat conductive bands is spaced. The outer heat insulating layer coats the outer periphery of the heat conductive bands which are formed by multiple long curved pieces. The heat conductive bands are made of graphite-based heat-conducting materials. The problem of burning due to thermal deposition and the flexibility of the target head during the use of the target head are solved, the improvement of the power ofthe medical laser thermal therapy target head is facilitated, and the mass of the target head is reduced.
Owner:SOUTH CHINA UNIV OF TECH +1
Acupuncture injection therapeutic instrument
PendingCN111135077ALow operating pressureImprove hygieneAcupunctureAutomatic syringesWestern medicinePhysical medicine and rehabilitation
The invention discloses an acupuncture injection therapeutic instrument in the technical field of traditional Chinese medicine physiotherapy and western medicine treatment equipment. The acupuncture injection therapeutic instrument comprises an acupuncture injection therapeutic instrument shell, a pressure making chamber, a transmitting channel and the like. According to the invention, by pressinga percussion button, a first percussion rod presses a second percussion rod, while the second percussion rod pokes a gear and a pull rod poised assembly, and the gear pokes a limiting rod and a trigger switch, so the pull rod poised assembly is separated from the limiting rod and a pressure bearing seat, and the pressure bearing seat is in a poised state; through opening of the trigger switch, aninstantaneous high-pressure airflow is generated by the pressure making chamber to pass through a main air pressure chamber and a percussion air tank to perform high-pressure impact on the pressure bearing seat, so the pressure seat launches and impacts a firing pin rod; and the firing pin rod enables a firing pin head to directly strike a liquid medicine or medicine powder to generate a high-speed spraying effect, so painless and low-wound-area injection is achieved, and the wound area is only 0.1-0.45 mm. The acupuncture injection therapeutic instrument provided by the invention has high hygienic degree due to no direct contact with a patient, is simple in needle applying operation, and effectively relieves the operation pressure of a doctor.
Owner:孟庆舫 +1
Traditional Chinese medicine preparation for treating gynecological diseases in cooperation with acupuncture and preparation process thereof
The invention relates to the technical field of traditional Chinese medicine preparation, in particular to a traditional Chinese medicine preparation for treating gynecological diseases in cooperationwith acupuncture and a preparation process thereof. The traditional Chinese medicine composition comprises the following raw materials: rhizoma corydalis, motherwort herb, Chinese angelica, the rhizome of chuanxiong, aloe, white paeony root, white flower patrinia harb, India madder root extract, rhizoma cyperi, arisaema cum bile, white lotus stamen, parasitic loranthus, plantain herb, a transdermal penetration enhancer, a humectant, a bacteriostatic agent and auxiliary materials. The rhizoma corydalis, motherwort herb, arisaema cum bile cooperate with each other to realize excellent curativeeffects on diseases such as irregular menstruation, amenorrhea and dysmenorrhea which are caused by blood stasis; with the auxiliary materials and the transdermal penetration enhancer, the medicine effect of the traditional Chinese medicine preparation prepared by the invention can be exerted to the maximum extent, the medicine effect exertion rate is also greatly improved, and the treatment effect on gynecological diseases is remarkably improved; after a patient takes the traditional Chinese medicine preparation, the effect and efficacy of treating gynecological diseases are improved by usingacupuncture and moxibustion; and the acupuncture and moxibustion is easy to operate, the effect is quick, and the curative effect is good.
Owner:秦安县鸣生堂针灸专科医院
Medical composition capable of repairing damaged skin as well as preparation method and application of medical composition
PendingCN108096566AReduce trauma areaSpeed up wound healingOrganic active ingredientsPeptide/protein ingredientsChemical compositionBletilla striata
The invention discloses a medical composition. The medical composition is a preparation prepared from the following components in parts by weight: 10 to 100 parts of nano-silver, 30 to 80 parts of hydrolyzed collagen, 10 to 50 parts of bletilla striata gelatin and 0.5 to 3 parts of asiaticoside. The invention further discloses a preparation method and application of the medical composition. The medical composition disclosed by the invention can be used for rapidly reducing a wound area of damaged skin, remarkably shortening scabbing, scab falling and wound healing time and accelerating skin wound healing speed; the medical composition can be used for effectively repairing the damaged skin and has relatively strong actual application value.
Owner:中山瑞德生物科技有限公司
T pipe with needle
InactiveCN109303969AEasily brokenSolve the problem of poor drainageGuide needlesMedical devicesEngineeringCommon bile duct dilatation
The invention discloses a T pipe with a needle. The T pipe comprises a long arm (1) and a short arm (2), and one end of the long arm (1) is vertically connected with the middle of the short arm (2) toconstitute a T shape with a through pipe cavity; a through cut which extends in the axial direction of the short arm is formed in the side, opposite to the long arm (1), of the short arm (2) and communicated with the interior of the short arm, and the side face of the cut is in a sawtooth shape (5); a folding opening (4) which extends in the direction of the long arm is formed in the middle of the short arm (2); the end face of the other end of the long arm (1) is a slant face, and a tip end (6) is formed; an out-drawing line (7) is connected to the tip end (6) of the long arm (1), and the surgical needle (8) is connected to the other end of the out-drawing line (7). By means of the T pipe, the problems that the short arm is easily broken and drainage is unsmooth are solved; meanwhile, the T pipe changes the mode of drawing out the long arm, the surgical time is shortened, the surgical efficiency is improved, the total cut length of the common bile duct is reduced, and the pain of a patient is alleviated.
Owner:尹新民
Anti-tumor nano preparation and application thereof in targeted therapy of malignant tumors
ActiveCN111110659AHigh photothermal conversion efficiencyGood in vivo degradabilityCompounds screening/testingOrganic active ingredientsBALB/cCell free
The invention discloses an anti-tumor nano preparation and application thereof in targeted therapy of malignant tumors. Polydopamine nanoparticles are used as a photothermal conversion material to prepare the anti-tumor nano preparation with high photothermal conversion efficiency, good in-vivo degradability, good biocompatibility and almost no cytotoxicity; meanwhile, the therapeutic effect of killing tumor cells is achieved in combination with photothermal therapy. After the preparation is subjected to tail vein injection into the body of a BALB / C female mouse inoculated with 4T1-luc cells,the photothermal therapy is carried out, the treatment effect is obviously superior to that of conventional treatment, the treatment mode is small in wound area and almost free of toxic or side effects, the administration dosage is reduced, and compared with surgical treatment, the pain is reduced.
Owner:JIANGXI HERBFINE HI TECH +1
Instrument for treating cyst of tendon sheath
The invention relates to the technical field of medical instruments, in particular to an instrument for treating the cyst of the tendon sheath. The instrument comprises a suction tube and a dosing tube, the suction tube and the dosing tube are fixedly connected in parallel, and a cannula is arranged at the head end of the suction tube; a liquid discharging tube is arranged on the side wall of the head end of the suction tube, open-close structures are arranged in the cannula and the liquid discharging tube, and a sealing cover is in screw joint to the tail end of the dosing tube. According to the instrument, a dual-channel puncture needle is arranged at the free end of a liquid suction tube, a connection tube is communicated with a channel in the dual-channel puncture needle, the head ends of a first piston rod and a second piston rod are correspondingly located in the suction tube and the dosing tube respectively, and the first piston rod is provided with a first rubber plug; a second piston rod is provided with a second rubber plug, the other end of the first piston rod is located outside the suction tube, the other end of the second piston rod penetrates through the sealing cover and extends to the exterior of the dosing tube, and the other end of the first piston rod and the other end of the second piston rod are provided with the same handle. According to the instrument, the area of a wound is greatly reduced, infection is avoided, and the surgery efficiency is also improved.
Owner:THE AFFILIATED HOSPITAL OF SHANDONG UNIV OF TCM
Needle cap device capable of popping out insulin pen needle
PendingCN108187194AEffective site rotation injectionReduce fearInfusion needlesInsulin pen needleTherapeutic effect
The invention relates to the field of medical injection tools, and in particular relates to a needle cap device capable of popping out an insulin pen needle. The needle cap device comprises a handle,a needle cap body, a trigger device, an insulin needle, a needle outlet hole and a spring, wherein the trigger device is arranged inside the handle, a button in the trigger device protrudes out of oneside of the handle, the button, a push pillar, a groove pillar and a trigger pillar are arranged inside the trigger device, the spring winds the outside of the trigger pillar, in the needle cap body,a needle file and a base are closely connected through threads, a base bulge is arranged on the left end of the base, a spring fixing groove is arranged at the lower end of the base, a sliding chuteis arranged in the inner wall of the needle cap body, the trigger pillar is positioned at the lower end of the base, and the spring winds the outer side of the insulin needle. For the needle cap device capable of popping out the insulin pen needle, the trigger device is started through the button, so that the spring inside the needle cap body contracts instantaneously, the needle is driven by thespring force of the spring to instantaneously stab the subcutaneous part for certain depth, thus the sense of fear and the feel of pain of patients are effectively alleviated, the area of wounds is reduced, the treatment compliance is improved, the patients can be subjected to effective part injection in turns, and finally, the treatment effects are improved.
Owner:XINXIANG MEDICAL UNIV
Endoscopic stomach wall suturing and ligating device
InactiveCN103211633BEnsure implementationRelieve painSuture equipmentsInternal osteosythesisAbdominal cavityStomach walls
Owner:陆军 +1
Stroke model laser transmitter and simulation method of laser transmitter
InactiveCN113208764AEasy to operateReduce trauma areaDiagnosticsSurgical instrument detailsLaser transmitterMedicine
The invention belongs to the field of neurobiology, and specifically relates to a stroke model laser transmitter and a simulation method of the laser transmitter. The stroke model laser transmitter is a novel, efficient, stable and low-cost stroke model laser, the stroke model laser transmitter is based on a 520 nm laser light source, in addition, a direct-current power source is added, and a fixing support manufactured on the basis of the 3D printing technology is used for assisting. A common photochemical embolism method is adopted, the operation process is simple, and the molding rate is high. The novel laser has the advantages of being free of maintenance and long in service life.
Owner:南京艾科轶生物科技有限公司
Minimally invasive surgical instrument for fracture of middle and far-end junction part of humerus
The invention relates to a minimally invasive surgical instrument for fracture of a middle and far-end junction part of a humerus, which comprises a steel plate, a sleeve, a sleeve core and a guider,wherein the steel plate is longitudinally provided with a connecting hole connected with a humerus screw, the guider is an L-shaped guider, one side of the guider is provided with a positioning through hole vertical to the other side, the periphery of the positioning through hole of the lower end surface of the side is provided with a positioning convex pin; the positioning through hole of the lower end surface of the side sleeves the upper end of a positioning screw of the steel plate, and the positioning screw of the steel plate is matched and arranged on a positioning screw hole of the steel plate; the positioning convex pin is inserted into a corresponding positioning concave hole of the steel plate to form corresponding fit, the other side of the guider is longitudinally provided withguide holes which are arranged and correspond to the connecting holes on one side of the steel plate one by one, the sleeve core is inserted into the sleeve and penetrates through a guide hole of theguider together with the sleeve, and the lower end is opposite to the connecting holes corresponding to the steel plate. Compared with the fixation of the posterior side of the humerus, the instrument is safer and more reliable, reduces the distance of the distal screw hole, increases the fixation quantity of the distal screws, and can perform anatomical restore on a diaphysis.
Owner:FIRST AFFILIATED HOSPITAL OF DALIAN MEDICAL UNIV
Scalp clip
The invention provides a scalp clip which comprises a clip body and clamp holders. The clip body is a hollow cylinder (1); the lower part of the hollow cylinder (1) is axially provided with a clamping mouth (11); a first clamp holder (2) and a second clamp holder (3) are arranged on the outer surface of the upper part of the hollow cylinder (1); the hollow cylinder (1) is made of an elastic material; and when the first clamp holder (2) and the second clamp holder (3) are relatively pressed, the hollow cylinder (1) can be elastically deformed. At the time, the clamping mouth (11) is opened, the first clamp holder (2) and the second clamp holder (3) are loosened, the hollow cylinder (1) returns to the original shape and then the clamping mouth (11) is closed. By the scalp clip provided by the invention, the damage of clamping arms to the scalp and the skull can be effectively avoided and the connection and transmission performances are also ensured better when the scalp is clamped in a transmitter to be continuously used, and the scalp clip is more beneficial for being discharged.
Owner:NINGBO XINWELL MEDICAL TECH CO LTD
A Modular Half Knee Prosthesis for Ligament-preserving Tibia Tumor
ActiveCN110731837BLow costIncreased durabilityJoint implantsKnee jointsArticular surfacesArticular surface
Owner:BEIJING LIDAKANG TECH
A kind of instrument for thoracoabdominal surgery with laparoscopic rigid mirror
ActiveCN112957107BEasy to cleanWill not affect normal workCannulasSurgical needlesHuman bodyAbdominal cavity
A thoracoabdominal surgical instrument with a rigid laparoscope, comprising: a positioning sleeve; a rigid laparoscope is driven and telescopically arranged in the positioning sleeve, and the rigid laparoscope has an extended position extending out of the positioning sleeve and retracted into the positioning sleeve The retracted position of the tube; the surgical actuator is arranged in the positioning sleeve, and the operating end of the surgical actuator extends out of the positioning sleeve; the hard mirror cleaner includes: a medium conduit arranged in the positioning sleeve, and a medium conduit end The nozzle at the end; the medium conduit is a curved flexible tube whose end is bent towards the lens of the laparoscopic rigid mirror. The above-mentioned structure solves the problem in the prior art that the rigid laparoscope and the thoracoabdominal surgical instrument cannot be combined to enter the abdomen of the human body through a through hole in the abdomen of the human body.
Owner:南昌华安众辉健康科技股份有限公司
Surgical reduction table
The invention discloses a surgical reduction table for transverse and radial reduction retraction of fractured bones. The surgical reduction table comprises a holding table and a base. The holding table is connected above the base through four first support rods. The first support rods are connected with the holding table and the base through meshing-surface screw pairs. Two second support rods are mounted on two sides of the front end of the base respectively. Each second support rod is connected with a porous support rod. A pull rod is connected with the upper ends of the porous support rods. A retraction mechanism is mounted between the porous support rods. A lifting reduction mechanism is mounted on the base below the holding table. The surgical reduction table with the structure has the advantages that the surgical reduction table is available for transverse and radial retraction reduction of fractured bones, convenient to operate and high in work efficiency; when an external fixator is used, wound area is greatly reduced for patients; during use of X-ray with the table, the radiation of X-ray upon operators is reduced greatly.
Owner:SUZHOU & SCI & TECH DEV
Surgical Instruments and Surgical Robots
Owner:SHANGHAI MICROPORT MEDBOT (GRP) CO LTD
A short cap nailer
ActiveCN111839706BSimple structureReduce trauma areaOsteosynthesis devicesStructural engineeringReoperative surgery
Owner:天衍医疗器材有限公司
A puncture therapeutic device for tendon sheath cyst
ActiveCN110269668BRelieve painReduce secondary damageSurgical needlesIntravenous devicesEngineeringGanglion cyst
The invention relates to the technical field of medical appliances, in particular to a ganglion cyst puncture treatment device, which includes a suction tube, a drug dosing container and a piston rod. A liquid discharge pipe is arranged on the side wall, and opening and closing structures are installed in the sleeve pipe and the liquid discharge pipe. The free end of the tube is provided with a double-channel puncture needle, and the dosing container is fixed on the outside of the suction tube, and is connected to the side wall at the end of the suction tube through the first connecting tube, and enters into the suction tube, and the dosing container is also passed through The second connecting tube communicates with one channel of the double-channel puncture needle. The first end of the piston rod is located in the suction tube and is provided with a rubber stopper, and the other end passes through the cover to the outside of the suction tube and is provided with a handle. The invention greatly reduces the wound area, avoids infection, and improves operation efficiency at the same time.
Owner:THE SECOND HOSPITAL OF DALIAN MEDICAL UNIV
Surgical guide plate
InactiveCN102138830BReduce trauma areaEasy to operateDental implantsSaddle shapeBiomedical engineering
The invention provides a surgical guide plate. The guide plate is characterized by comprising support pins, a fixed hole and a guide hole, wherein the support pins are of saddle shapes, and the head and the tail of the saddle shapes are bent in the same direction; the support pins are connected to the fixed hole, the inside surface of the fixed hole is connected to the platform-shaped guide hole;a closed through hole is formed in the guide hole; a gap of at least 5mm is reserved between the lower end of the guide hole and the surface of dentale; the fixed hole is of a hollow upright post shape; and the support pins, the fixed hole and the guide hole are formed into a whole structure. The surgical guide plate has the beneficial effects that: the surgical guide plate of an oral implant canbe fixed on the dentale by three support pins, so that the wound area of a patient is reduced, and the guide plate is light and easy to operate; the through hole in the guide hole ensures that: the implant is implanted into the dentale (implant position and angle) of the patient according to the predetermined design scheme on a computer, and the gap between the lower end of the guide hole and thedentale surface is convenient for a doctor to observe the implanting condition of the implant at any time in an operation process.
Owner:西安比利嘉华数字医疗技术有限公司
Forging, bending and compression molding process for horseshoe type high-strength link ring
PendingCN114226609AReduce the blanking weightHigh strengthMetal-working apparatusEngine componentsCompression moldingThermal treatment
The invention discloses a horseshoe type high-strength link ring forging, bending and compression molding technology. The technology comprises the following steps that S1, material selection is conducted, specifically, a bar with the proper diameter is selected according to the design budget; s2, blanking treatment is conducted, specifically, the selected bars are cut; s3, heating treatment is conducted, specifically, the cut bar is heated to the required forging temperature; s4, pre-forging treatment is conducted, specifically, the bar is subjected to pre-forging preliminary forming on a matched press machine, and a long-strip forge piece is obtained; s5, trimming is conducted, specifically, redundant flashes are cut off from the long-strip forge piece subjected to pre-forging and preliminary forming; s6, bending and compression molding are conducted, specifically, the long-strip forge piece is subjected to rapid bending and shaping treatment, and a forge piece is obtained; s7, correction treatment is conducted, specifically, correction treatment is conducted on the press machine and the bent forge piece; and S8, natural cooling is conducted, specifically, natural cooling treatment is conducted on the bent and shaped forge piece. The horseshoe type high-strength chained ring prepared by the invention is relatively high in compression strength and relatively high in raw material utilization rate.
Owner:SHIJIAZHUANG JINHUAN FORGING CO LTD
Scalp clip
The invention provides a scalp clip which comprises a clip body and clamp holders. The clip body is a hollow cylinder (1); the lower part of the hollow cylinder (1) is axially provided with a clamping mouth (11); a first clamp holder (2) and a second clamp holder (3) are arranged on the outer surface of the upper part of the hollow cylinder (1); the hollow cylinder (1) is made of an elastic material; and when the first clamp holder (2) and the second clamp holder (3) are relatively pressed, the hollow cylinder (1) can be elastically deformed. At the time, the clamping mouth (11) is opened, the first clamp holder (2) and the second clamp holder (3) are loosened, the hollow cylinder (1) returns to the original shape and then the clamping mouth (11) is closed. By the scalp clip provided by the invention, the damage of clamping arms to the scalp and the skull can be effectively avoided and the connection and transmission performances are also ensured better when the scalp is clamped in a transmitter to be continuously used, and the scalp clip is more beneficial for being discharged.
Owner:NINGBO XINWELL MEDICAL TECH CO LTD
Artificial valve prosthesis
PendingCN112674909ASave materialReduce the cross-sectional areaHeart valvesThrombusBiomedical engineering
The invention discloses artificial valve prosthesis. The artificial valve prosthesis comprises a support body and a valve leaflet assembly, wherein the support body comprises a first support and a second support, the first support is provided with a connecting end, the second support comprises a plurality of support rods, the support rods are fixed to the connecting end of the first support, the valve leaflet assembly is provided with a first valve leaflet fixing part, and the valve leaflet assembly is fixed to the connecting end of the first support through the first valve leaflet fixing part. Compared with a frame structure composed of a plurality of closed geometric units in the prior art, the second support is mainly composed of the plurality of support rods, materials of the support body are reduced, and therefore the sectional area of a conveying device is reduced, and the wound area of a patient is reduced; and in addition, the support structure of the area clamped by the valve leaflet assembly and the second support is relatively sparse, blood is not prone to deposition at the position, and therefore the risk of thrombosis is reduced.
Owner:SHANGHAI TRULIVE MEDTECH CO LTD
An anti-tumor nano-preparation and its application in targeted therapy of malignant tumors
ActiveCN111110659BHigh photothermal conversion efficiencyGood in vivo degradabilityCompounds screening/testingOrganic active ingredientsTherapeutic effectTarget therapy
The invention discloses an anti-tumor nano-preparation and its application in targeted treatment of malignant tumors. Polydopamine nanoparticles are used as a photothermal conversion material to prepare a bio An anti-tumor nano-preparation with good compatibility and almost no cytotoxicity; at the same time, the therapeutic effect of killing tumor cells can be achieved by combining photothermal therapy. After the tail vein injection of the preparation of the present invention into the body of BALB / C female mice inoculated with 4T1-luc cells, the therapeutic effect of photothermal therapy is significantly better than that of conventional treatment, and the treatment method has a small wound area and almost no toxic side effects. The dosage is reduced, and the pain is reduced compared with surgical treatment.
Owner:JIANGXI HERBFINE HI TECH +1
a tooth extractor
The invention provides a tooth extractor. The tooth extractor comprises a housing, wherein the housing is internally provided with a rotating shaft; the rotating shaft penetrates through a hammer; a first groove is formed in the hammer; a first torsion spring used for enabling the hammer to rotate penetrates through the rotating shaft in the first groove; one of spring legs of the first torsion spring is fixedly connected with the rotating shaft; a guiding mechanism is arranged on the right side of the housing; a first sliding rod penetrates through the guiding mechanism; a mounting hole usedfor allowing the first sliding rod to penetrate through is arranged in the housing; the first sliding rod is provided with a first stopping block used for preventing the first sliding rod from continuing to move rightwards relative to the hammer; the left end of the first sliding rod is a big head end; the big head end is provided with a first stopping contact surface used for being in contact with the left side surface of the hammer; the right end of the first sliding rod is connected with a fixed claw used for fixing a tooth during tooth extraction; an excitation mechanism used for enablingthe hammer to rotationally hit the first stopping contact surface is arranged below the housing. The tooth extractor is used for solving the technical problem that the hammer takes up a relatively bigspace.
Owner:LUOHE SHUGUANG HUIZHIKANG BIOTECH
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