61results about How to "Reduce Surgical Injuries" patented technology

The invention belongs to the technical field of medical polymer materials and in particular relates to X ray developing thermotropic hydrogel and a preparation method thereof. The X ray developing thermotropic hydrogel comprises an iodine-containing amphiphilic block copolymer and a solvent, wherein the iodine-containing amphiphilic block copolymer is obtained by bonding an iodine-containing micromolecule and an amphiphilic block copolymer by virtue of a covalent bond, and thermotropic gelatinization phase transformation can be carried out on a water system of the X ray developing thermotropic hydrogel along with temperature increase. The thermotropic hydrogel can be implanted under the skin and implanted into an abdominal cavity, an articular cavity and other specific parts of a human body in a mode of injection, and in situ formed hydrogel has good X ray developing performance, clear positioning and long-term tracing observation can be carried out on the hydrogel by adopting an X ray radiography technique. The thermotropic hydrogel also can serve as a medicine controlled release carrier, a tissue repairing support, a blood vascular embolization agent, a tissue marker and the like and can be used for realizing integration of diagnosis and treatment.

The invention discloses an analogue operation training system, and belongs to the field of cross-over studies coalescing a plurality of subjects such as an information technology, an automation technology and a machinery manufacturing technology. The analogue operation training system can be used for operation path planning before an operation and the daily operation training of a physician. Analogue operation software is developed, a brain model can be established according to magnetic resonance imaging (MRI) data, and a virtual operation can be performed based on the brain model in a computer virtual space; an operation operator is designed, and has six degrees of freedom, and the operating principle for the operation operator is the same as that of a ventriculoscope operating knife, so that real sense of operation is ensured; a field programmable gate array (FPGA)-based multi-path data acquisition system is designed, and can be used for acquiring six paths of coder data in real time, so that the system is high in real-time performance; and the system is high in brain model accuracy, real-time tracking performance, operation realism and automation degree and low in development cost.

Provided is a surgical system for NOTES by which surgical invasion can be reduced. A surgical system for NOTES comprising a circular anastomosis device (1) wherein an anvil part (3) attached to a guide electrical wire (100) is connected to a main body (2) to be inserted into body tract and then inserted into a body tract (T) from a natural orifice (Ma) and, after cutting off a lesion site (T3) inthe body tract with a pair of linear cutters (558, 559) of a linear cutter/stapler (500) having been inserted from a body cavity (Mb), the cut ends are anastomosed together for the repair.

The invention discloses a notch sealer of abdominal wall of laparoscope surgery, which consists of elastic bushing ring (1) and soft sleeve (2), wherein one end of the soft sleeve (2) connects the elastic bushing ring (1) and the other end is opening. The invention has simple and reasonable structure, convenient usage, low cost, which can seal the notch rapidly and rebuilds pneumoperitoneum to finish the reconstruction of digestive tract in the internal and external linked abdominal cavity under pneumoperitoneum condition.

The invention relates to a retinal prosthesis with a spherical arc substrate. The retinal prosthesis comprises a microelectrode array, a microelectrode array outgoing line portion and an external electrical stimulation lead-in portion. The retinal prosthesis is mainly technically characterized in that the microelectrode array is arranged on the surface of the spherical arc retinal prosthesis. The center of the retinal prosthesis is more effectively fitted with the surface of the retinal prosthesis by the aid of the microelectrode array on the surface of the spherical arc retinal prosthesis, a microelectrode is arranged on a spherical arc convex surface, so that the microelectrode can effectively contact with the surface of the retinal prosthesis, electrical stimulation efficiency is improved, stimulation current of the microelectrode array on the surface of the retinal prosthesis is reduced, the service time of the microelectrode array is prolonged, the retinal prosthesis is effectively protected, and spherical arc polychlorostyrene with biocompatibility replaces xylene materials and serves as a flexible substrate, so that manufacture and implantation of the electrode array are facilitated.

The invention provides a composite neural electrode and a preparation method thereof. The composite neural electrode comprises a flexible neural electrode cured material; the flexible neural electrodecured material comprises a polymer cured material and flexible neural electrode arrays dispersed in the polymer cured material by a co-assembling effect; and an active substance is dispersed in the polymer cured material. In the invention, the active substance is dispersed in the polymer cured material coating the peripheries of flexible neural electrodes, and the composite neural electrode can be implanted into a specific brain area of the brain and carries out fixed point conveying on the loaded active substance to a target brain area so as to carry out regulation and control on cell functions of the target brain area; and meanwhile, the electrode adopting the flexible neural electrodes can record and stimulate an electrical activity signal of neurons, can be combined with technologiessuch as optogenetics and the like, and has the important application value for research in the aspects of a neural circuit, nerve diseases and the like.

The invention provides a percutaneous tracheostomy device, comprising a lacerable catheter sheath, a trachea catheter and a puncture needle, wherein the lacerable catheter sheath is provided with a sheath catheter with a hollow cavity, and a sheath catheter joint fixedly connected with one end of the sheath catheter; the trachea catheter comprises a trachea cannula and enters the sheath catheter cavity of the lacerable catheter sheath via the sheath catheter joint, and parts of the trachea catheter are left out of the trachea catheter joint; the puncture needle head passes through the lacerable catheter sheath through the trachea cannula cavity to be exposed out of the lacerable catheter sheath; the tail of the puncture needle is left out of the trachea cannula; the puncture needle punctures through a catheter and introduces the trachea catheter and the lacerable catheter sheath to enter the catheter; the puncture needle is pulled out from the sheath catheter cavity, and the lacerable catheter sheath is torn; parts of the trachea catheter are left in the catheter, and parts of the trachea catheter are left out of the catheter.

The invention discloses an orthopedic centralized drill guide, which comprises: a connecting rod, a guide sleeve and clamping claws; the outer wall of the upper end of the guide sleeve is connected and fixed with the connecting rod, and the end surface of the lower end of the guide sleeve is provided with anti-skid serrations; The jaws include a sleeve, a limit screw and a pair of arc-shaped elastic metal sheets, the two arc-shaped elastic metal sheets are fixed at the lower end of the sleeve, and the two arc-shaped elastic metal sheets are arranged symmetrically to each other; the sleeve can slide The sleeve is set on the guide sleeve, and the sleeve is fixed with the guide sleeve by a limit screw. Through the above method, the present invention can control the drill bit in the middle of the bone medullary cavity, ensure the maximum holding force of the screw, reduce surgical injury, shorten the operation time, and reduce the operation bleeding.

The invention discloses anti-cancer medicinal liquor as well as a preparation method and application thereof. The anti-cancer medicinal liquor is prepared from the following raw materials in parts by weight: 350-450 parts of Blaps rynchopetera Fairmaire, 450-550 parts of Tenebrio molitor, 250-350 parts of myrmeleontidae larva, 100-200 parts of Scoropendra subspinipes mutilans and 4500-5500 parts of Baijiu. After being reasonably drunk, the anti-cancer medicinal liquor has a remarkable curative effect on laryngeal cancer, rectal cancer, breast cancer, gastric cancer, bladder cancer, prostate cancer, uterus cancer and the like; the anti-cancer medicinal liquor can effectively slow down the deterioration of diseases and alleviate symptoms, and also can effectively reduce surgical injury to patients who are subjected to operations and chemoradiotherapy, improve immunologic cellular activity inhibited by the chemoradiotherapy, consolidate the curative effect of the chemoradiotherapy and reduce the toxic and side effects of the chemoradiotherapy, thus effectively improving the survival quality of the patients and prolonging the lives of the patients.

The invention discloses a Mimics-based computer simulation double-wedge-shaped osteotomy method. The method comprises the following steps: acquiring CT projection data of the affected side and CT projection data of the uninjured side of a patient; respectively inputting the affected side CT projection data and the uninjured side CT projection data into Mimics, and establishing a corresponding affected side three-dimensional model and uninjured side three-dimensional model only containing humerus and ulna and radius; performing X-ray photography on the affected side three-dimensional model and the uninjured side three-dimensional model in an X-ray module, and acquiring a corresponding affected side simulated normal-position X-ray film and an uninjured side simulated normal-position X-ray film; determining an affected side osteotomy orthopedic angle according to the affected side simulation normal position X-ray film and the uninjured side simulation normal position X-ray film; designing an osteotomy path on the affected side simulation orthotopic X-ray film; projecting an osteotomy path on the affected side simulation normal position X-ray film to an entity STL according to a position likelihood principle to obtain an osteotomy indication point; and enabling a computer to simulate osteotomy and surgical reduction. The method can improve the measurement precision of the lifting angle, effectively reduce the lateral displacement, increase the bone surface contact area, improve the bone contact stability, and reduce the bone disconnection rate.

The invention discloses a remote surgical navigation device based on an in-situ projection technology. The remote surgical navigation device comprises an operating bed, an image device, a connecting rod, an operating end processor, an Internet and a remote end processor, wherein a camera is arranged above the operating bed; the camera head is connected with the operating end processor through theconnecting rod; and the operating end processor is connected with the remote end processor through the Internet. The invention discloses a remote surgical navigation method based on an in-situ projection technology. The remote surgical navigation method is characterized by comprising the following steps that a camera collects on-site color video data; the operation end processor performs signal processing on the color video data; the operation end processor transmits the signal to the remote end processor through the Internet; a doctor at the remote end performs labeling guidance on a screen of the remote end processor according to the real-time image information of the operation end; and the operation end processor processes the received signal and projects an operation instruction of theremote end doctor to a corresponding operation position of the patient through an in-situ projection device.

The invention relates to a method of inspecting target stone with B ultrasound of an extracorporeal shock wave lithotripter. The method comprises the following steps: a. moving a section of a B ultrasound probe to intersect with the axle wire of a shock wave cup at a focus of a wave source, namely, the point is the focus of the wave source of shock waves; b. transmitting the scanned images collected by the B ultrasound probe in real time to a computer, and setting a scanned image with stone located in the focus of the wave source as a template image; c. comparing the images scanned by the B ultrasound probe in real time with the template image through the computer, starting the shock waves to break the stone if the images scanned by the B ultrasound probe in real time are matched with the template image, then skipping to a step d, otherwise, not starting the shock waves to break the stone, and then skipping to the step c; d. automatically collecting a B ultrasound section image which is shocked and with the stone still located in the focus of the wave source to replace the former template image through the computer, and then skipping to the step c. The method of inspecting the target stone with the B ultrasound of the extracorporeal shock waves lithotripter has the advantages that by setting a threshold value to judge whether the stone shifts to the focus of the wave source or not, the shock waves emitted by a machine are guaranteed to act on the stone, a treatment effect is improved, operation damage of a patient is reduced, and the method of inspecting the target stone with the B ultrasound of the extracorporeal shock wave lithotripter is convenient to popularize.

The invention belongs to the technical field of medical consumables and relates to an elastic thread for thread-drawing therapy of perianal abscess and anal fistula. The elastic thread is characterized in that a number 0 is arranged at the central point of the elastic thread, and starting from the number 0, scales with the spacing of 0.5-1.0 cm are respectively arranged on the left part and the right part of the elastic thread; the numbers of the scales are gradually and respectively increased from the number 0 to the two tail ends of the elastic thread; the two tail ends of the elastic thread are fixedly connected with inelastic incoming threads; and each section of scales on the elastic thread is colored, and the colors of the scales are gradually and respectively changed from deep to light from the scale number 0 of the elastic thread to the two tail ends of the elastic thread. The elastic thread has the advantages that the elasticity is good, the property is stable, the operation is simple and convenient, the auxiliary reminding function is achieved, and assistance can be provided for doctors at the anorectal section to understand the conditions of patients more intuitively and accurately and the like.

The invention discloses an anticancer pharmaceutical composition as well as a preparation method and an application thereof. The anticancer pharmaceutical composition comprises the following raw materials in parts by weight: 10-30 parts of white clove flower root, 20-40 parts of paris polyphylla, 15-35 parts of panax notoginseng, 10-20 parts of oldenlandia diffusa and 1-10 parts of bamboo parasitism. According to the anticancer pharmaceutical composition disclosed by the invention, the various components supplement each other, and the anticancer pharmaceutical composition is obvious in anticancer effect, convenient to take, does not have any toxic or side effect, can achieve the effects of enhancing the immunity and promoting blood circulation and takes musk with an effect of inducing resuscitation as a guiding drug, and the composition is obvious in anticancer effect and obvious in effect of eliminating tumor cells.