45results about How to "Avoid ischemia" patented technology

Described is a medical device and method for allowing fenestration of the aortic wall while maintaining distal perfusion and preventing external bleeding. The device isolates a segment of the aortic wall from the flowing column of blood using a balloon mounted on a metal alloy strut assembly. The strut assembly expands radially from a collapsed, low-profile configuration when uncovered by a constraining outer sheath. Aortic blood flow is allowed through the flow passage thus contained by the strut assembly within the center of the balloon. The balloon is inflated to contact the aortic wall. The balloon contains a pocket shaped to allow aortic fenestration. The balloon contains radiopaque markers to facilitate orientation and positioning of the pocket within the aorta. Other embodiments using spaced balloons are also disclosed.

The invention discloses a method for preparing a 3D printed diabetic foot insole, which comprises the following steps: checking the condition of the patient; 3D scanning the sole of the patient's foot to obtain 3D scanning data of the sole of the foot; scanning the bottom surface of the insole used by the patient daily using a 3D scanner to obtain 3D scanning data of the bottom surface of the insole; use 3D Max and netfabb software to import the 3D scanning data of the bottom of the foot and the 3D scanning data of the bottom surface of the insole to generate a 3D digital file of the diabetic foot insole model. , to obtain the final 3D diabetic foot insole data; use 3D printing machine to print according to the final 3D diabetic foot insole data, obtain 3D diabetic foot insole semi-finished products; finely process the 3D diabetic foot insole semi-finished products, and obtain 3D diabetic foot insole finished products. The 3D printed diabetic foot insole is comfortable to wear, saves materials, and has good use effect.

Disclosed are improved methods and compositions for use in light-based in vivo imaging and treatment. The techniques described involve the use of low-scattering, oxygen-carrying blood substitutes in imaging and treatment methods, including OCT imaging. The invention has particular advantages in imaging within the cardiovascular system and highly vascularized or oxygen-dependent tissues.

The invention provides an arteria cruralis compression hemostasis device. After the transfemoral coronary intervention operation is completed, hemostasis is carried out on the puncture point. The arteria cruralis compression hemostasis device comprises an air bag type compressing assembly, a splint, at least one horizontal bandage assembly and an inclined bandage assembly, wherein the air bag type compressing assembly is provided with an inflatable air bag and a compressing block mounted on the bottom end of the inflatable air bag and pressing the puncture point; the splint is arranged on the bottom of the thigh at the puncture side, and is provided with an upper end part crossing the hip joint; two ends of the at least one horizontal bandage assembly are mounted on the left and right side edges of the splint, and the splint is fixed to the bottom of the thigh at the puncture side; the inclined bandage assembly is provided with an inclined bandage extending along the hip joint and fixing the air bag type compressing assembly to the puncture point.

A composition for skin contact applications and for treating wounds having antimicrobial agents dispersed in a thermoplastic elastomer. The antimicrobial agents migrate to the surface of the thermoplastic elastomer to keep the wound and the skin free of infection.

Formulations and methods are provided for improving the function, i.e. clinical outcome, of solid organ transplants. Lung transplantation is of particular interest. In the methods of the invention, a nanoparticle formulation comprising an effective dose of an iron chelator active agent in nanoparticle form, including without limitation, deferoxamine (DFO), deferasirox (DFX), and deferiprone (DFP), etc. suspended in a carrier compatible with the tissue of interest, is topically applied to the surface of tissues at the site of anastomosis. The nanoparticles are comprised of the active agent and a pharmaceutically acceptable stabilizer.

The invention relates to a pharmaceutical composition of amlodipine or a pharmaceutically acceptable acid additive salt thereof and nicotinic acid, a medical box containing the compositions, and a method of using the compositions to treat patients suffering from angina pectoris, atherosclerosis and accompanied hypertension, and treating patients (including human beings) having heart risk symptoms. The invention also relates to an additive synergic composition of the amlodipine and the nicotinic acid, which can be used for treating the patients suffering from the angina pectoris, the atherosclerosis and the accompanied hypertension and the hyperlipoidemia, and treating the patients (including human beings) having heart risky symptoms.

The invention discloses a sealed air bag automatic pressure regulating ventilation catheter and a connecting device, and belongs to the field of medical instruments, the sealed air bag automatic pressure regulating ventilation catheter comprises a ventilation catheter body with the front section provided with a sealed air bag, a bias pressure balance regulator is communicated with the sealed air bag, and a communicating pipe is communicated with the bias pressure balance regulator and is communicated with a breathing loop; during mechanical ventilation, the pressure intensity of gas in a breathing loop is automatically adjusted through a bias pressure balance adjuster, so that the pressure intensity of the gas in the sealing air bag is larger than that of the gas in the breathing loop, and the pressure intensity difference value is smaller than 10 mmHg; the pressure intensity of the sealing air bag of the ventilation catheter synchronously and periodically changes along with the pressure intensity of the mechanical ventilation airway, in the expiration phase with the small pressure intensity of the mechanical ventilation airway, the pressure intensity of air in the sealing air bag is small, tracheal mucosa blood circulation is periodically recovered, and tracheal mucosa damage caused by the tracheal mucosa blood circulation is avoided.

The invention relates to a lower limb artery double-cavity balloon negative pressure suction protective umbrella device, and belongs to the technical field of medical instruments. Comprising a guide wire, an inner-layer sheathing canal, an inner-layer balloon, an outer-layer membrane sac, an outer-layer sheathing canal and a protective net, an inner-layer sheathing canal is arranged in the outer-layer sheathing canal in a penetrating manner, and a guide wire is arranged in the inner-layer sheathing canal in a penetrating manner; a protective net is arranged at the far end of the guide wire; an inner-layer balloon is arranged between the inner-layer sheathing canal and the outer-layer sheathing canal, and the inner-layer balloon is arranged on the side, close to an operator, of the protective umbrella; an outer-layer membrane bag is arranged on the periphery of the inner-layer balloon; a through hole is formed in the surface of the outer layer membrane bag; and a catheter is arranged on the inner-layer balloon and the outer-layer membrane bag. The surgical operation steps are effectively simplified, the chipping falling risk caused by guide wire exchange is reduced, and the surgical duration is shortened; the blood vessel is repeatedly expanded for many times, a large amount of disintegrating slag is prone to falling off, the pressure of the protective umbrella can be relieved by sucking out turbid blood through negative pressure suction, the blood state in the negative pressure suction bottle can be observed in vitro, and the property and the treatment effect of lesions can be evaluated.

A multifunctional composite drug coating sustained release system includes a transition layer and a drug-loaded degradable coating, wherein the transition layer is a ceramic transition layer having different porosities and the transition layer includes a dense lower layer and a porous upper layer. The multifunctional composite drug coating sustained release system is helpful to internal fixation and also has an antibacterial efficacy. A method for manufacturing the multifunctional composite drug coating sustained release system is also disclosed which includes: preparing a biocompatible ceramic transition layer on a metal surface; and then preparing a drug-loaded degradable coating on a surface of the biocompatible ceramic transition layer.

The invention discloses a femoral artery shunt infusion tube. The femoral artery shunt infusion tube comprises a intubation body and an expander. An inner thread column is fixedly mounted on the both side walls of an inner thread sleeve by connecting the intubation body with the inner thread sleeve in a thread mode for fixing the intubation body, so that the intubation body is not easy to pull away the femoral artery, the right end of the intubation body is connected with a stopper plate and an outer thread sleeve in a thread mode, the outer thread sleeve is connected with a sealing ring in a thread mode, the outer thread sleeve is used for facilitating better connection with a main pipeline of femoral artery circulation, the sealing ring plays a better seal role to prevent leakage. The structure of the femoral artery shunt infusion tube is used for provide blood shunt perfusion for distal non-perfusion ischemia area of the femoral artery during cardiopulmonary bypass surgery and extra-membranous lung advanced life support to prevent ischemia.

The invention provides a medical traction guiding catheter with an adjusting structure and a using method thereof. The medical traction guide catheter comprises a left sheath tube and a right sheath tube, the left sheath tube comprises a left semicircular tube, a left expansion part and a supporting part, the left semicircular tube is provided with the left expansion part and the supporting part in an extending mode in sequence, and the right sheath tube comprises a right semicircular tube, a right expansion part and a holding part; a right expanding part and a holding part sequentially extend from the right half annular tube, the left sheath tube and the right sheath tube form a guiding catheter body, a safety channel is formed in the inner wall of the guiding catheter body, and an inner core used for protecting soft tissue is connected into the safety channel. The holding part is arranged over the supporting part, a fine adjustment driving mechanism used for enabling the bottom of the guiding catheter body to rotate and retract is arranged between the holding part and the supporting part, and a limiting notch used for limiting the retracting range of the bottom of the guiding catheter body is formed between the left expanding part and the right expanding part. The retraction range is convenient to adjust, the limiting effect is good, and the safety is high.

The invention relates to a magnetic traction type surgical wound suture-free healing device and an operation method thereof, and belongs to the field of medical instruments. The device comprises a subcutaneous part, wherein the subcutaneous part comprises two pull-in lines, the two pull-in lines are pre-buried in the subcutaneous parts of the two sides of a wound respectively, the pull-in lines are made of soft plastic materials, ferromagnetic adsorption blocks are continuously embedded in the pull-in lines, and the adsorption blocks are completely wrapped by the pull-in lines. New wounds cannot be formed on the two sides of the wound, the attractiveness of the wound is kept, scars are reduced as much as possible, gluing is not used, and skin itch fester and hypoxia necrosis cannot be caused.

The invention provides a covered stent which comprises a main body covering film, a window is formed in the surface of the main body covering film, the covered stent further comprises an inscribed covering film, the edge of the inscribed covering film is connected with the main body covering film, and the window comprises a first edge and a second edge which extend in the length extending direction of the covered stent. And the inner connecting covering film and the main body covering film are independently formed and then are spliced and connected. According to the covered stent, the internally connected covering film and the main covering film are independently formed and then spliced, so that the manufacturing difficulty of the covered stent is greatly reduced.

The invention discloses a peony seed oil phytosterol solid beverage and a preparation method thereof. The beverage is prepared from the following raw materials in parts by mass: 2-6 parts of bamboo leaf flavone, 4-9 parts of ginseng, 2-5 parts of lotus seeds, 1.5-3 parts of pericarpium citri reticulatae, 1.5-4 parts of longan aril, 1-2 parts of spina date seeds, 2-4 parts of Chinese wolfberry fruits, 2.5-5 parts of poria cocos, 1-3 parts of peach kernels, 2.5-4 parts of allium macrostemon, 0.5-1.5 parts of dried ginger, 1.7-3.8 parts of apricot kernels, 4-6 parts of roots of kudzuvine, 2-3 parts of licorice, 0.5-2 parts of earthworm protein, 3-7 parts of peony seed oil microcapsule powder, 3.5-6 parts of nattokinase, 2-5 parts of phytosterol, 1.5-4 parts of cis-15-tetracosanoic acid, 0.6-1.2 parts of xylitol, 4.5-7 parts of fructo-oligosaccharide and 1.5-4 parts of edible essence. The peony seed oil phytosterol solid beverage prepared by the method has health-care functions of reducingcholesterol, regulating blood fat, reducing blood viscosity, reducing cardiovascular diseases, preventing myocardial ischemia, preventing heart diseases and the like, is ready to drink by brewing, isconvenient to carry and store, good in taste, high in nutritional value, simple in overall processing method, low in production cost, wide in market prospect and beneficial to popularization and application.

A kind of blood pressure lowering blood fat tea, is characterized in that adopts pearl ginseng, blue flower stone ginseng, bamboo joint ginseng, bud, honeysuckle, pear leaf, lotus leaf, safflower, epimedium, Panax notoginseng powder, evening primrose, Made from a blend of sweet tea and mulli. This tea is scientifically prepared from various natural plant leaf buds, rhizomes or flower buds. It can be soaked in boiling water. It has the functions of good taste, lowering blood pressure, and regulating blood lipids. Through clinical experiments, this tea has been taken by patients with high blood pressure. The results prove that It has significant antihypertensive and hypolipidemic effect.

The invention discloses a pressure-difference-stable ventilation catheter and a connecting device, and belongs to the field of medical instruments, the pressure-difference-stable ventilation catheter comprises a ventilation catheter body of which the front section is provided with a sealing air bag, a pressure-difference-stable cavity is communicated with the sealing air bag, and a communicating pipe is communicated with the pressure-difference-stable cavity and is communicated with a breathing loop; during mechanical ventilation, the pressure intensity of gas in the breathing circuit is automatically adjusted through the pressure difference stabilizing cavity, so that the pressure intensity of the gas in the sealing air bag is larger than that of the gas in the breathing circuit, and the pressure intensity difference value is stabilized at a proper numerical value; the pressure intensity of the sealed air bag of the ventilation catheter synchronously and dynamically changes along with the pressure intensity of the mechanical ventilation airway, in the expiration phase with the small pressure intensity of the mechanical ventilation airway, the pressure intensity of air in the sealed air bag is small, blood circulation of the tracheal mucosa is recovered, and the tracheal mucosa is prevented from being damaged.

According to international patent classification (IPC), a water sac replacing axillary region postoperation pressure dressing belongs to the parts of human life requirement or medicine or veterinary medicine part (A61), diagnosis (A61B), the surgery major class, the bandage subclass of surgical implements or devices or methods, dressing or absorption cushions, the first-aid case supergroup, and the fields of coverings (13 / 66) and supporting devices which are not integrated with the absorption cushions or the supporting device group. The axillary region postoperation pressure dressing water sac aims at resolving difficult problems and overcoming defects in the fields of original partial dressing fixing pressurization, dressing, braking and the like after operation of an axillary region, and prevents corresponding complication and the like. The axillary region postoperation pressure dressing water sac is characterized by comprising a water sac area, a ribbon area and a connection device between the water sac area and the ribbon area. The water sac is in an uncracked indefinite-form long-oval cone shape and made of a polyvinyl chloride (PVC) thin film integrally. The ribbon is made of an elastic ribbon, is connected with the water sac to be attached to a shoulder portion, can enable the water sac to be tightly attached to the axillary region, and achieves the purposes of supporting dressing, pressing the axillary region and conducting a certain degree of braking. The axillary region postoperation pressure dressing water sac is simple to manufacture, low in cost, convenient to use, and easy to popularize.

The invention provides a covered stent which comprises a main stent body, a window is formed in the surface of the main stent body, the covered stent further comprises an inscribed covering film, the edge of the inscribed covering film is connected with the main stent body, and a through hole communicated with an inner cavity of the covered stent is further formed in the inscribed covering film; the covered stent further comprises a window supporting piece, the window supporting piece is arranged outside the inner connecting covering film and protrudes outwards out of the surface of the inner connecting covering film, the window supporting piece comprises a net-shaped structure with meshes, and the size of the meshes can be changed under the action of external force. The covered stent provided by the invention can adapt to implantation of bridging stents of different sizes, the bridging stents cannot be extruded by the weaving wires, the positions of the bridging stents can be fixed to a certain extent, and the blood flow impact resistance stability of the implanted bridging stents is enhanced.

The invention discloses a constant-temperature inflatable bathing device. According to the technical scheme, the constant-temperature inflatable bathing device is characterized by comprising a bath salt bag and an air bag which is inflated to form a closed chamber shape, wherein the air bag is provided with an access door; a water inlet and a water outlet are formed in the air bag and are connected with a constant-temperature control assembly; and the constant-temperature control assembly comprises a pump body, a cooling assembly, a temperature detection element, a heating element and an intelligent temperature control host. By means of the characteristic that the air bag is easy to carry in a folded state, a user can carry the air bag to designated places such as gymnasiums, gardens and outdoors; and after the air bag is inflated, the constant-temperature control assembly is used for carrying out constant-temperature control on water containing bath salt, so that the user can carry out salt bath treatment outdoors.

The invention discloses a puncture type temporary blood vessel communicating vessel. The puncture type temporary blood vessel communicating vessel comprises a tubular water bag and a puncture guide wire, wherein a water charging and discharging opening is formed in the tubular water bag; the puncture guide wire is arranged on the wall of the tubular water bag and extends in the length direction of the tubular water bag; a guide nozzle communicated with the inside of the tubular water bag is arranged on the tubular water bag, and the water charging and discharging opening is formed in the guide nozzle; the guide nozzle is arranged in the position, close to the end, of the tubular water bag; the tubular water bag is made of an elastic flexible material; and the outer wall of the tubular water bag is yellow. The temporary blood vessel communicating vessel has the characteristics of ingenious structure and safety in use, smooth blood supply of blood vessels can still be guaranteed during surgical suture, the overall function is complete, and the practicability is high.

The invention discloses a special-shaped anti-dropping seminiferous duct sterilization apparatus. The sterilization apparatus is made of a macromolecule polymer material with the thermosensitivity shape memory effect, wherein the shape memory temperature is in the range from 20 to 55 DEG C; and the sterilization apparatus is of a special-shaped structure which can not freely slide along a seminiferous duct after being implanted in a seminiferous duct. The sterilization apparatus is endowed with a shape memory function by fully using the memory property of the macromolecule polymer material with the thermosensitivity shape memory effect in the manufacturing process of the sterilization apparatus; the vitrification conversion temperature of the sterilization apparatus is set at a temperature range appropriate for a human body; before implanted in the human body, the diameter of the sterilization apparatus is maintained to be matched with the inner diameter of the seminiferous duct so that the sterilization apparatus is of a linear type; and after the sterilization apparatus is implanted in the human body, the thermosensitivity memory property of the shape memory polymer material is fully exerted so that the original special-shaped structure is restored, and the seminiferous duct can better adapt to the deformation of the sterilization apparatus and correspondingly changes in shape, thus the sterilization apparatus is stably implanted in the seminiferous duct and blocks the cavity of the seminiferous duct and good contraception effect is achieved.

The invention discloses a device for auxiliary recovery of intestinal air fistula, a using method and an early warning method. The device is used for helping an accompanying person to lift the patch placed at the intestinal cavity fistula to prevent the patch from moving. During usage, an accompanying person places the arch-bridge-shaped support on a sickbed, and the support is adjusted to slide to the position above a fistula in the length direction of the sickbed. The multiple sliding assemblies are adjusted to be located at the needed positions and angles, the thread in the thread take-up device is pulled out to enable the thread hook to hook the lifting thread, the thread take-up device is automatically tightened after the length and the force are adjusted, the patch is in the needed lifted state, and support is provided for the intestinal air fistula blocked by the patch. According to the invention, early warning processing is carried out; so that patch changes, especially pressure changes or deformation caused by the pressure changes, needing to be observed by human eyes traditionally are converted into gray scale difference processing of the picture; whether the pressure orposition on the patch changes or not is determined through the gray scale difference processing, the accuracy of early warning judgment efficiency is improved, and the defect that traditionally, observation depends on the human eyes is overcome.

The patent of the present invention relates to the technical field of medical devices, and discloses an orthopedic retractor and its use method, including a base, a mechanical arm installed on the base, a retracting device installed at the end of the mechanical arm, and a device for controlling the mechanical arm and The control panel of the retracting device; the retracting device includes a driving part, a rotating disk, a curved rod, a retracting blade, a water tank and a water bag; the driving part is installed on the mechanical arm, and the rotating disk is connected to the bottom of the driving part, so Both sides of the turntable are respectively hinged with curved rods. The control panel controls one of the multiple solenoid valves to close. The squeezed part of the tissue is released, so that the blood vessels supply the part of the tissue, helping the squeezed tissue recover, avoiding the hypoxia caused by long-term ischemia of the incision tissue, and reducing the death of tissue cells. , can reduce the patient's pain and recovery time.

A method for treating or preventing heart failure involving blockage of small blood vessels is described. The method involves administering to a subject in need thereof a therapeutically effective amount of a vasodilator.