43results about How to "Reduce trauma area" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The invention provides a ligament reserved assembled semi-knee-joint prosthesis for a tibial tumor. The prosthesis comprises a tibia pad, a tibial end prosthesis, a diaphysis elongation segment and amarrow cavity elongation handle, wherein the tibia pad and the tibial end prosthesis are connected with locking snapping grooves through matched locking structures and are fixed through locking nails,the tibial end prosthesis and the diaphysis elongation segment are connected by adopting an anti-revolving snapping structure, the diaphysis elongation segment and the marrow cavity elongation handleare connected by adopting an anti-revolving snapping structure. An upward-outstanding arc-shaped articular surface is arranged at the top of the tibia pad, two rows of longitudinal-distributed through holes are formed in the tibia pad located at a middle position of the arc-shaped articular surface, and a square groove encircling the through holes is formed in the bottom end of the tibia pad; andlongitudinal-distributed patellar ligament holes are formed in the front side of the tibial end prosthesis, and internal lateral ligament holes and external lateral ligament holes are separately formed in the left and right sides of the tibial end prosthesis. The prosthesis has a reserved thighbone articular surface, thighbone lateral osteoepiphysis and surrounding ligament tissue, and thus, thebone growth function of a children sufferer is guaranteed; and the prosthesis is low in cost, high in durability, small in wound area, convenient to implant and high in reliability.

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.

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.

The invention provides a surgical instrument and a surgical robot adopting the surgical instrument. The surgical instrument comprises a front end, a wrist part, a foundation base, a guide mechanism and a traction unit, wherein the front end is rotatably connected with the wrist part and a first rotation axis is formed, the wrist part is rotatably connected with the foundation base and a second rotation axis is formed, and the first rotation axis and the second rotation axis are non-coplanar and are vertical to each other; the traction unit comprises a first traction body, a second traction body, a third traction body and a fourth traction body; the four traction bodies surround and are partially fixedly connected with the front end, extend, are restrained by the guide mechanism, and then are connected with an external mechanism; the second traction body surrounds the front end in the direction opposite to that of the first traction body, and the fourth traction body surrounds the front end in the direction opposite to that of the third traction body; the first traction body and the second traction body are distributed on one side of the second rotation axis, and the third traction body and the fourth traction body are distributed on the other side of the second rotation axis.

The invention discloses a short cap nail holder, comprising a holder body, a clamping column is arranged at the front end of the holder body, a through hole is arranged in the clamping column, and the through hole is far away from an end of the holder body An inner edge protrusion is provided, a spring is arranged in the through hole, a pressing ball is arranged at a position corresponding to the through hole and the inner edge protrusion, and a clamping groove is arranged at the end of the clamping column far away from the holder body. The clamping groove is trumpet-shaped, the through hole communicates with the side wall of the clamping groove, and the side of the clamping column close to the clamping groove is provided with a nail entry opening, and the clamping groove and the nail entry opening pass through the clip The side of the holding column; the cooperation of the clamping groove and the pressure ball in the present invention makes the disassembly and assembly of the short cap nail very simple, and realizes rapid assembly and disassembly, and when the short cap nail is installed, there is instantaneous friction with the pressure ball, Vibration and sound are generated, and the sound can be used to judge whether the short cap nail is clamped successfully, which greatly facilitates the doctor's judgment and reduces the operation time.

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.

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.

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.

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.