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Micro instrument terminal based on module joint and used for minimally invasive surgery robot
ActiveCN102488554AFlexible to completeThe total length of the closed-loop transmission remains unchangedDiagnosticsSurgical robotsSurgical departmentTarsal Joint
The invention discloses a micro instrument terminal based on module joints and used for a minimally invasive surgery robot. The micro instrument terminal comprises a rotary module of a first four-bar mechanism consisting of a module top end part, a module bottom end part, a lower support and first left and right connection pieces, and a rotary module of a second four-bar mechanism consisting of amodule top end part, a rotary connection shaft, an upper support and second left and right connection pieces; two ends of a first steel wire rope are connected with the top surfaces of the module topend parts, and the other two ends of the first steel wire rope are sequentially connected with a first rotary actuating device through the module bottom end part; two ends of a second steel wire ropeare connected with a rotary connecting shaft, and the other two ends of the second steel wire rope are sequentially connected with the first rotary actuating device through the module top end parts and the module bottom end part; and the upper part of the rotary connecting shaft is inserted into the central hole of a rotary rod and is in clearance and running fit with the rotary rod, and the rotary rod is connected with a surgery apparatus. Complex surgery can be more flexibly completed by adopting the device.
Owner:SHANDONG WEIGAO SURGICAL ROBOT CO LTD
Cell preservation solution and preparation method and applications thereof
ActiveCN104542578AExcellent maintenance of biological characteristicsMaintain biological characteristicsDead animal preservationVitamin CAmino Acid Injection
The invention relates to the technical field of clinical medicines, and particularly relates to a cell preservation solution and a preparation method and applications thereof. The cell preservation solution comprises albumin, glucose, vitamin C and basic preservation liquid, wherein the basic preservation liquid is a mixture of compound electrolyte injection and compound amino acid injection. The cell preservation solution disclosed by the invention achieves a good maintaining effect on the viability and morphology of more than two kinds of seed cells, and can preserve the seed cells for a long time, and maintain the biological characteristics of the seed cells, thereby significantly improving the therapeutic effect of the seed cells.
Owner:GUANGZHOU SALIAI STEMCELL SCI & TECH CO LTD
Preparation method and application of sericin hydrogel
ActiveCN103951831AGood natural propertiesOvercoming the challenge of high biological properties of sericinNervous disorderPeptide/protein ingredientsCross-linkDisease
The invention discloses a preparation method of sericin hydrogel, the method is as follows: first, weighting domestic silkworm fibroin deletion form mutation variety silkworm cocoon for LiBr or LiCl extraction and dialysis and purification to obtain a non-degradable sericin water solution with a mass percentage concentration of 0.1-4%; concentrating the sericin water solution to 1.5-10%, adding a cross-linking agent to the concentrated sericin water solution (wherein 2-500muL of the cross-linking agent is added into each L of the sericin water solution), fully mixing, and placing at 4-45 DEG C for 5 seconds to 36 hours to obtain the sericin hydrogel. The sericin hydrogel has biological activity and multiple functions, can be used as carrying growth factors, drugs and cell carriers treatment, and can be applied in repair of a variety of soft tissue injuries, including but not limited to skin damages, muscle damages, injuries of blood vessel, nerve injuries, myocardial damages, and the like, and treatment of diseases.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
Spine image generating system based on ultrasonic rubbing technology and spine surgical navigation positioning system
ActiveCN107595387AAvoid damageAccurate intraoperative navigationImage enhancementImage analysisContour matchingSelf navigation
Owner:ZHEJIANG UNIV
Whole-tooth lost dental implantation operation guide plate and making method thereof
Owner:6D DENTAL TECH
Robot for accurate diagnosis and treatment of maxillofacial diseases
The invention discloses a robot for accurate diagnosis and treatment of maxillofacial diseases and belongs to the technical field of minimally invasive medical instruments. The robot comprises a robot supporting mechanism, a robot body mechanism, a universal joint and a control system. The robot supporting mechanism is used for realizing position adjustment of the robot body mechanism relative to an operating bed, namely relative to a patient, and primary positioning of a treatment portion of the patient is achieved through the position adjustment. The robot body mechanism realizes adjustment of three degrees of freedom in space, so that accurate positioning of the treatment portion of the patient is achieved by means of tail mechanisms. The universal joint is used for connecting three tail mechanisms for operative treatment. The robot can be connected with three different operative tail mechanisms to complete three different operations, is convenient to detach and flexible to operate, and has effects of reducing wounds, improving treatment effect with high accuracy and good repeatability while reducing radiation to medical staff and lowering workload thereof.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Cable-free air bag type robot system
The invention provides a cable-free air bag type robot system which comprises a monitoring computer, a singlechip microprocessor, a wireless communication receiving and sending device, a wireless energy emitting circuit and a cable-free air bag type robot, wherein the singlechip microprocessor is respectively connected with the monitoring computer, the wireless communication receiving and sending device and the wireless energy emitting circuit, and the cable-free air bag type robot is in communication connection with the wireless communication receiving and sending device and is in energy exchange with the wireless energy emitting circuit. The cable-free air bag type robot system has the advantages of small trauma, safety and reliability, high movement efficiency, and wide application range.
Owner:SHANGHAI JIAO TONG UNIV
Detachable long bone reduction robot
InactiveCN103462674AHigh reset accuracyReduce surgical traumaSurgical robotsExternal osteosynthesisLONG BONE FRACTUREEngineering
The invention discloses a detachable long bone reduction robot. The detachable long bone reduction robot comprises a fixing mechanism and a reduction mechanism which are connected with or separated from each other, wherein the fixing mechanism comprises two groups of same fixing units which are connected with or separated from each other via two same connecting plates (1); the reduction mechanism is provided with a small annular platform (11), a large annular platform (12), twelve universal hinges (13) and six driving rods (14); the small annular platform (11) is connected with a bottom plate (2) and the universal hinges (13); the universal hinges (13) are connected with the driving rods (14); the universal hinges (13) are connected with the large annular platform (12); the large annular platform (12) is connected with the bottom plate (2). Due to the adoption of a parallel mechanism of six degrees of freedom, the detachable long bone reduction robot has the advantages of high accuracy, high loading capacity, high rigidity, compact structure and the like; the detachable long bone reduction robot is applied to long bone fracture reduction, is used for replacing doctor operation, and contributes to increasing the reduction accuracy, reducing operation wounds and lowering the probability of operative infection.
Owner:BEIHANG UNIV +1
Navigation device for bone block directional movement in orthognathic surgery and manufacturing method thereof
The invention relates to a navigation device for bone block directional movement in an orthognathic surgery. The navigation device for bone block directional movement in the orthognathic surgery comprises a U-shaped occluding plate; an upper jaw left navigation plate and an upper jaw right navigation plate, a lower jaw left navigation plate and a lower jaw right navigation plate or a chin navigation plate; an upper jaw left connecting piece and an upper jaw right connecting piece, a lower jaw left connecting piece and a lower jaw right connecting piece or a chin connecting piece; at least two upper jaw fixing splints which are used for navigating upper jaw bone block movement during the surgery and fixing an upper jaw bone block which is moved in place, at least two lower jaw fixing splints which are used for navigating lower jaw bone block movement and fixing a lower jaw bone block which is moved in place, or at least one chin fixing splint which is used for navigating chin bone block movement and fixing a chin bone block which is moved in place. The components are designed through software and are manufactured by adopting a quick forming method.
Owner:SICHUAN UNIV
Robot device for minimally-invasive local radiotherapy
The invention discloses a robot device for minimally-invasive local radiotherapy. The robot device comprises an end executing mechanism which is used for realizing autorotation and accurate feeding adjustment of an ultrasonic probe and provided with a particle punching mechanism, a horizontal rotation and pitching adjustment mechanism which is arranged below the end executing mechanism and used for supporting the end executing mechanism and realizing the horizontal rotation adjustment and pitching adjustment of the end executing mechanism, and a support adjustment mechanism which is arranged below the horizontal rotation and pitching adjustment mechanism and used for supporting the horizontal rotation and pitching adjustment mechanism and realizing the adjustments of front and back positions, left and right positions, upper and lower lifting positions of the end executing mechanism. The robot device for minimally-invasive local radiotherapy has the following advantages of: assisting doctors in finishing short-distance radioactive therapy of prostatic cancer under ultrasonic image navigation, having high precision, high stability and convenience for operations, reducing pain of patients, reducing operation time, improving operation precision during the surgery, preventing misoperation of the doctors, reducing trauma of the patients, reducing labor intensity of the doctors, and improving success rate of the surgery.
Owner:TIANJIN UNIV
Balloon guide catheter
The invention provides a balloon guide catheter, and in particular relates to the technical field of medical apparatus and instruments. The catheter is a composite pipe composed of an outer tube, an inner tube, and a suction tube positioned at the far end of the catheter which are coaxial, and a flexible balloon capable of realizing the full or contraction state is connected to the outer layer ofthe far end of the outer tube; an annular cavity between the inner tube and the outer tube forms a balloon filling cavity; the far end of the inner tube is welded to the near end of the suction tube;an inner cavity of the inner tube is connected with the inner cavity of the suction tube in series to form a guide cavity of the catheter, namely, a thrombus suction cavity; a main inner hole of a Y-shaped joint communicates with the inner cavity of the inner tube to form a wire guide cavity and the thrombus suction cavity; and the axis of side holes of the Y-shaped joint and the axis of the maininner hole of the Y-shaped joint have intersection at the near end direction of the catheter to form an acute angle, and the side holes of the Y-shaped joint and a gap between the outer wall of the inner tube and the inner wall of the outer tube communicate to form the balloon filling cavity. For the balloon guide catheter, during the interventional treatment process, blood flow can be blocked, sothat small broken thrombus is prevented from blocking the far end, and meanwhile, large thrombus blocks at the near end can be sucked, so that the surgery effect is greatly improved.
Owner:南京普微森医疗科技有限公司
Device for conveying bracket in operation and method for mounting and releasing bracket in aortic arch operation
The invention discloses a device for conveying a bracket in an operation, which comprises a coating film, a suture and a pulling line, wherein the suture is sewed on the coating film through the pulling line, the suture and the pulling line are used to sew two sides of the coating film, so that the bracket in the operation is closed and coated in the coating film, connection which can be disconnected when the pulling line is pulled out is formed between the suture and the coating film. An aorta is cut open on the end part of a vascular lesion position; the bracket in the operation, which is mounted on the conveying device, is conveniently and fast implanted into the corresponding lesion position including lesion positions of branch vessels; and thereby the corresponding suture can be released only by pulling out the pulling line; and then the bracket with branches in the operation is released and located in a blood vessel with branches, such as the aortic arch; and a cut is sutured after the conveying device is withdrawn. By using the invention, number of anastomotie stomas in the operation is reduced, the operation process is simplified, the operation time is shortened, the complications of the operation are reduced, the survival rate of the patient is improved, the treatment effect is increased, and wounds to patients with aortic arch parts and other diseases are more effectively reduced.
Owner:LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
Biological 3D printing apparatus
ActiveCN105751510AFast curingRealize in-situ printingAdditive manufacturing with liquids3D object support structuresEngineeringElectrical and Electronics engineering
The invention provides a biological 3D printing apparatus, comprising a printing frame.A 3D biological printing pen device is disposed on the printing frame and comprises a pen barrel shell and a removable printing pen inside the pen barrel shell, the bottom end of the printing pen includes a printing nib, and a connecting sheet sleeves the pen barrel shell and is connected with the printing frame.An upper end of the printing pen is connected with an air pump hose, a nozzle casing sleeves the pen barrel shell, the top of the nozzle sleeve is provided with a rotary L-shaped fixing bolt, the L-shaped fixing bolt can be rotated to the top end of the printing pen to limit the printing pen, and after the L-shaped fixing bolt is rotated outside the printing pen, the printing pen is available for removal.The biological 3D printing apparatus forms an open space, the printing pen can be removed for handheld operation, and real-time minimally invasive in-situ printing for tissues or organs is facilitated.
Owner:南通皋特医疗科技有限公司
Hydrogel compound, preparation method and application
The invention provides a hydrogel compound, a preparation method and the application. The preparation method comprises the following steps: (1), preparing a hyaluronic acid solution; (2), preparing aldehyde-based modified hyaluronic acid; (3), preparing hydrazide derivatization hyaluronic acid; (4), mixing the aldehyde-based modified hyaluronic acid and the hydrazide derivatization hyaluronic acidinto hydrogel. The method ensures that a final product can be matched with a clinical arthroscopy on the basis of guaranteeing excellent biocompatibility through modification on hyaluronic acid, ensures that hydrogel is rapidly formed in any defective parts through one-time minimally invasive injection, can be further tightly adhered to the defective parts, so as to reduce burden of patients as far as possible, and achieve the effect of promotion of cartilage repair.
Owner:JIANGSU DISSUETECH MEDICAL TECH CO LTD
A prosthetic valve prosthesis with an anchor
The present application relates to a prosthetic valve prosthesis with an anchor, includes a bracket body having a passage for supplying blood flow and at least one fixing member, the fixing member isconnected with the bracket body, the fixing member includes a lower extension section and an upper extension section, one end of the lower extension section is connected with the bracket body as a fixed end, the other end of the lower extension extends proximally along the axis of the bracket body, extending distally in the opposite direction after passing through the bent region and connected tothe upper extension. The upper extension section is located on the outer side of the lower extension section, and a leaf receiving cavity is formed between the lower extension section and the upper extension section. The fixing member is further provided with a lamination device, and when the fixing member is completely released, the self-body leaf is stacked in the leaf receiving cavity. The clamping force of the fixation part of the prosthetic valve prosthesis is not influenced by the space between the stent body and the fixation part, and the influence on the blood outflow channel after thestent body is released is greatly reduced.
Owner:NINGBO JENSCARE BIOTECHNOLOGY CO LTD
Digital jaw surgical guide plate and manufacturing method thereof
InactiveCN102389335AReduce tissue traumaShorten operation timeDiagnosticsComputer-aided planning/modellingSurgical proceduresNeurovascular bundle
The invention discloses a manufacturing method of a digital jaw surgical guide plate and the digital jaw surgical guide plate. The digital jaw surgical guide plate comprises an osteotomy line mark part, a neurovascular bundle running mark part, a dental germ position mark part and a plate body, wherein the osteotomy line mark part, the neurovascular bundle running mark part and the dental germ position mark part are arranged on the plate body. According to the digital jaw surgical guide plate, a surgical design scheme is completely realized, tissue wound is reduced, the surgery time is shortened, the risk of abnormal injury in surgery is reduced, and accuracy and safety of a jaw shaping surgery are comprehensively improved.
Owner:PLASTIC SURGERY HOSPITAL CHINESE ACAD OF MEDICAL SCI
Artificial dental abutment, artificial dental multi-part implanting system and implanting method
InactiveCN103550002AReasonable structureCompact structureDental implantsUltimate tensile strengthDentition
The invention provides an artificial dental abutment, an artificial dental multi-part implanting system and an implanting method. A crown connection section and an implant connection section are respectively arranged at two ends of the artificial dent abutment, wherein the included angle of the axis of the crown connection section and the axis of the implant connection section is 10-30 degrees. The artificial dental abutment can adapt to various oral implanting conditions and angles. An artificially implanted tooth has a harmonious and beautiful repairing effect with surrounding tissues and remained dentition by adopting the abutment. The invention discloses an artificial dental multi-part implanting system comprising the artificial dental abutment, wherein the implant is a multi-part and nonsubmerged technology combined implant, is high in stability and strength, and can adapt to various oral implanting conditions and angles, can be used for effectively reducing the local stress, shortening the healing time and reducing the hurt of patients.
Owner:DALIAN SANSHENG SCI & TECH DEV
Method for determining distal femur cuneiform plane in digital auxiliary mode
InactiveCN107296651AReduce radiation doseReduce scan lengthComputer-aided planning/modellingSurgical approachKnee Joint
The invention discloses a method for determining a distal femur cuneiform plane in a digital auxiliary mode. The method mainly comprises the following steps that 1, continuous sectional CT scanning is performed on a patient, and image data is obtained; 2, three-dimensional data of a knee joint prosthesis is obtained through reverse engineering means; 3, polygonal processing and precise curved surface processing are performed on the three-dimensional data of the thighbone and the knee joint prosthesis; 4, marking and checking of synostosis mark points are performed in computer aided design software; 5, the cuneiform plane is determined for performing cuneiform rehearsal. The method has the advantages that digital means is adopted before operation, synostosis mark points, axes, prosthesis models, cuneiform planes and the like are determined, and an operation path can be better planned, and an operation plan can be designed; the cuneiform plane does not need to be determined by opening a medullary space, wounds are reduced, and the bleeding volume and fat embolism occurrence probability are lowered; computer assistant positioning is performed, the positioning accuracy is improved, the operation effect is better, and the patient recovery time is shortened.
Owner:SICHUAN UNIV
Long bone resetting robot in series-parallel connection
The invention discloses a long bone resetting robot in series-parallel connection, which comprises a serial connection part and a parallel connection part, wherein the serial connection part comprises a near-end fixing mechanism and a far-end fixing mechanism which are connected or disconnected through a positioning rod; each of the near-end fixing mechanism and the far-end fixing mechanism comprises a fixing plate, a locking bolt, a connecting rod, a connecting rod mounting base, a bracket rod and a latch clamping mechanism; the latch clamping mechanism comprises a connecting bolt and a latch; the parallel connection part comprises a far-end platform panel, a far-end platform connecting plate, a far-end platform pressing plate, a near-end platform panel, a near-end platform connecting plate, a near-end platform pressing plate and a stretching rod mechanism; and the stretching rod mechanism comprises a connecting hinge, a sleeve and a connecting rod. The long bone resetting robot in series-parallel connection is mainly used for realizing a function of assisting the resetting of long bone fracture by the robot under a closed condition. The long bone resetting robot in series-parallel connection has the characteristics of flexible mechanism, large work space, convenience in operation, and the like, and has an excellent application prospect.
Owner:GENERAL HOSPITAL OF PLA +1
Remote-control interventional robot system
ActiveCN103584918ANo damageIngenious structural designDiagnosticsSurgeryRobotic systemsRemote control
The invention discloses a remote-control interventional robot system. Interventional catheters are used as operation objects of common interventional robot systems, and functions of medical robots of the common interventional robot systems are implemented by means of entry, withdrawal and radiography operation and the like on the catheters. The remote-control interventional robot system is characterized in that an interventional catheter in an initial human body vessel entry direction is guided by a puncture sheath fixed by the aid of a puncture sheath fixing module, an advancing direction of the interventional catheter is adjusted by an air bag turning module, a contrast medium ejecting module is connected with the interventional catheter to realize a radiography function, a catheter entry module provides power for the catheter for entering a human body vessel, and the catheter withdraws from the human body vessel by the aid of a catheter withdrawing module. The remote-control interventional robot system has the advantages that an interventional catheter and power combined design concept is applied in a breath-through manner, and the problem of difficulty in turning in interventional operation can be solved by a noninvasive air bag mode; the remote-control interventional robot system is novel in concept, is closely combined with clinical application, and accordingly can be promoted to be popularized in actual clinical application.
Owner:THE THIRD XIANGYA HOSPITAL OF CENT SOUTH UNIV +1
Total temporomandibular joint prosthesis
The invention discloses a total temporomandibular joint prosthesis. The total temporomandibular joint prosthesis comprises a mandible prosthesis, a condyloid process head prosthesis, a glenoid fossa bottom prosthesis and a glenoid fossa fossa prosthesis; the mandible prosthesis comprises a head part, a neck part and a lifting and supporting fixing part; the condyloid process head prosthesis is of a hollow ball body, and the hollow part is in a shape of a circular platform in match with the head part of the mandible prosthesis, and thus the head part of the mandible prosthesis is perfectly connected with the condyloid process head prosthesis; the glenoid fossa bottom prosthesis comprises a zygomatic arch fixing part and a connecting part; the glenoid fossa fossa prosthesis is cuboid, and clamping strips are arranged at the left side edge and the right side edge of the glenoid fossa fossa prosthesis; the clamping strips are connected with clamping slots in the fossa surface at a connecting part of the glenoid fossa bottom prosthesis by an inserting and drawing manner; the bottom surface of the glenoid fossa fossa prosthesis is a circular concave surface and is clung to the condyloid process head prosthesis. With the adoption of the total temporomandibular joint prosthesis, the postoperative wound can be reduced; the stability is high; the characteristic that the glenoid fossa of Chinese people is deeper than that of occidental; the articular tubercle is avoided grinding which leads to damage to basis cranii in operation.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED TO SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
Deep brain stimulation system
ActiveCN104623808ANo need to increase the financial burdenEasy to replaceElectrotherapySonificationSpasmodic movement
The invention discloses a deep brain stimulation system which comprises an external detection control and ultrasonic sending device and an intracerebral ultrasonic receiving and stimulation treatment device. The external detection control and ultrasonic sending device is positioned outside the body of a patient and mainly comprises a microprocessor, a storage unit, a detection unit, an electrode array, an ultrasonic signal amplifier, a transducer, a display unit, a keyboard unit, a power source unit and a clock unit, and an intracerebral ultrasonic receiving and stimulation treatment device is implanted deeply in brain tissue of the patient and mainly comprises a transducer, a voltage gain and rectifier circuit, a voltage stabilizer, a control circuit unit and a stimulation electrode. The deep brain stimulation system is used for treatment of nervous system diseases like Parkinson's disease, torsion spasm, spasmodic torticollis, chorea and epilepsy.
Owner:LIFETECH SCIENTIFIC (SHENZHEN) CO LTD
Recyclable and adjustable interventional stent for constricting blood vessels
The invention discloses a recyclable and adjustable interventional stent for constricting blood vessels, wherein the stent main body is divided into three parts; the stent is waist drum shape; the upper and lower parts of the stent are respectively provided with an expanding part, which has supporting and locating effects; and a part with changeable opening diameter is arranged in the middle of the stent. The expanding part at the upper end of the stent has no tectorial membrane or has tectorial membrane; the middle opening diameter changeable part and the upper half part of the expanding part at the lower end of the stent are covered with pericardium in anti-calcification treatment; and metallic line rings are threaded at the lowermost edge of the stent. A transportation composite conduit is composed of two parts of an epitheca and an inner core. The inner core is a hollow tube. An outer side wall at the tube sharping part has a wire-hanging groove for hanging metallic lines at inferior margin of the stent. The stent is used for replacing normal pulmonary banding so as to improve curative effect and reduce related complication rate and death rate. Adhesion is not formed around the cardio great vessels and pulmonary stenosis is not formed, so the difficulty of the radical operation is not increased. The stent is suitable for other situations for reducing artery blood flow and pressure.
Owner:张石江 +1
Occluder delivery system for cardiac surgery department
The invention relates to an occluder conveyance system comprising a puncture sheath with a puncture sheath tube and a propel member displaced therein, an occluder tubular carrier having a unilateral valve in the end and a conveyance steel cable used for cardiac surgery department. The puncture sheath tube and the occluder tubular carrier form a detachable connection by a set of connection member. The occluder conveyance system introduces the occluder from the body surface directly to the affected part by the puncture sheath under the guidance of an ultrasonic equipment. It is free of radiation, contrast and other interference tool, having no request on patient age and no impact on peripheral vessel, in addition, it has short operation time and low therapycost.
Owner:BEIJING BALANCE MEDICAL
Reinforced compound sheathing canal, preparation method and application thereof
InactiveCN105105894AReduce surgical riskPrevent extensionStentsSurgeryTransport systemInvasive treatments
The invention discloses a reinforced compound sheathing canal, a preparation method and application thereof. The reinforced compound sheathing canal sequentially comprises an inner layer, a reinforced layer and an outer layer from interior to exterior, wherein the reinforced layer comprises axial reinforcing elements and a spiral reinforcing element, the spiral reinforcing element is a single spiral element or is formed by combining two or more spiral elements, the axial reinforcing elements are disposed on the inner side or outer side of the spiral element, or are inserted between the spiral elements, and various axial reinforcing elements are uniformly arranged in the circumference direction of the sheathing canal. The reinforced compound sheathing canal provided by the invention has the advantages of thin wall, high axial strength, high radial strength, high torque transitivity and the like, can be applied to a transport system for transporting medical device implants needed in a minimally invasive treatment and can reduce the outer diameter of the transport system, so that the medical device implants are easy to arrive at lesion positions, damage to the blood vessel of a patient is reduced, and sufficient technical support is provided for reliable, successful and safe transport and implantation of the medical device implants by the transport system.
Owner:NINGBO LINSTANT POLYMER MATERIALS CO LTD
Slow-releasing polymer microglobe of analgesic and preparation thereof
InactiveCN1679515ALong-term analgesic effectLow costPowder deliveryNervous disorderMicrosphereMolecular materials
A slow-releasing high-molecular microsphere of analgesic is prepared from high-molecular material and analgesic through emulsifying, cross-linking, thermal setting, and volatilizing solvent. It can be implanted in cavum epidurale or operation incision for slow releasing.
Owner:孙永海
Magnetic resonance compatible puncture needle
The invention relates to a magnetic resonance compatible puncture needle which comprises an outer needle and an inner needle, wherein the inner needle is embedded in the outer needle. The magnetic resonance compatible puncture needle is characterized in that the outer needle is made of pure titanium, and the inner needle is made of titanium alloy. The outer needle of the magnetic resonance compatible puncture needle is made of the pure titanium material, and the inner needle is made of the titanium alloy material, thereby reducing the size of the puncture needle under magnetic resonance imaging and being convenient for better judging the position of the puncture needle.
Owner:SHENZHEN INST OF ADVANCED TECH
Real-time medical communication system based on current coupling type human body communications and communication method thereof
InactiveCN103560837AFirmly connectedReduce power consumptionDiagnostic recording/measuringSensorsCapacitancePatch electrode
The invention discloses a real-time medical communication system based on current coupling type human body communications and a communication method of the real-time medical communication system, and belongs to the field of human body communications, wherein the problem that an existing whole system of capacity coupling type human body communications is poor in adaptation and stability is mainly solved. The real-time medical communication system comprises a power module, a transmitter and a receiver, wherein the transmitter and the receiver are respectively connected with the power module and installed on a human body. The communication method of the real-time medical communication system comprises the steps that a medical signal of the human body is converted into a differential current signal suitable for transmission of human tissues through the transmitter, the differential current signal is transmitted to a patch electrode through a guide line and is injected into the human tissues through the patch electrode, a voltage signal in the human tissues is collected and transmitted to the receiver, and the receiver detects voltage of two different positions on the human body so as to obtain the medical signal. Information is transmitted by safely and stably using the human body as a medium without affecting the normal physiological status of a person, and the real-time medical communication system based on the current coupling type human body communications and the communication method of the real-time medical communication system are suitable for being popularized and used on a large scale.
Owner:NEIJIANG NORMAL UNIV +1
Volume reduction device for left ventricle
ActiveCN104706444AReduced systolic and diastolic volumesReduce left ventricular toneSurgeryProsthesisCardiac apexVolume reduction
The invention provides a volume reduction device for a left ventricle. The volume reduction device comprises a supporting frame which is made of shape memory alloy, and the supporting frame is covered with a polymeric membrane. When the supporting frame is released into the left ventricle from the cardiac apex of the left ventricle, the shape of the released supporting frame is matched with the inner wall of the left ventricle. A supporting end which extends outwards is arranged at the end, far away from the cardiac apex, of the supporting frame, and the supporting end is clamped on the inner wall of the left ventricle. A connecting sleeve which is detachably connected with a push rod is arranged at the end, close to the cardiac apex, of the supporting frame. According to the volume reduction device for the left ventricle, the ventricle area without functions can be isolated, the volume contraction and expansion are reduced, the tension of the left ventricle is lowered, and the cardiac function of left ventricle reconstitution and heart failure patients is improved. An intervention way is adopted, the design of minimally invasive cardiac apex passing is created, and the trauma is lowered to the minimum. Through the design that the diameter of a transferring sheath is decreased in the cardiac apex passing way or the intervention way, the risk of damaging blood vessels, cardiac valves and the like is avoided. The design of a positioning base, a cardiac apex positioner and the like is adopted, positioning is good, and the attaching tension is high.
Owner:SHANGHAI SHAPE MEMORY ALLOY
Commonly-used percutaneous pedicle screw stick internal fixing system
The invention discloses a commonly-used percutaneous pedicle screw stick internal fixing system which comprises a pedicle screw, a longitudinal connection stick, a puncture cone, a guide pin, an expansion core, a screw setting guide sleeve, a hollow flat file, a hollow screw tap, a screw feeder, a stick holder, a screw plug holder, a screwdriver, an opening pressurizer and a torsion resistance sleeve spanner. The opening pressurizer comprises a first opening pressurization arm, a second opening pressurization arm, a first connector, a second connector and a supporting stick. The first connector and the second connector with the adjustable distance are connected to the supporting stick. The first opening pressurization arm is detachably hinged to the first connector, and the second opening pressurization arm is detachably hinged to the second connector. One end of the first opening pressurization arm and one end of the second opening pressurization arm are each provided with a clamping groove. A progressive force application mechanism is connected between the other end of the first opening pressurization arm and the other end of the second opening pressurization arm. The system can be operated flexibly, easily, conveniently and rapidly in a labor-saving mode, can achieve gradual opening or pressurization at different times, and has the powerful and effective opening or pressurization effect.
Owner:贺新宁
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