63results about How to "Small trauma" patented technology

An apical implantation mitral valve balloon closure plate blocking body and an implantation method, for human heart repair are disclosed. A balloon closure plate made from an elastic plastic material which may be filled with a gas or a curable liquid is implanted via a small incision on the left side of the chest, enters the left ventricle via the apex, and is placed and fixed at a backflow hole position of a front and rear leaflet closure point of the mitral valve. The present disclosure treats diseases such as functional mitral valve regurgitation, and the success rate for repairing functional mitral valve backflow is more than 90%.

The invention relates to an operating instrument for minimally invasive or conventional implanting of a spinal implant into the intervertebral space comprising an outer tube which has a hollow handle on its proximal end, wherein the inner rod can be moved in the outer tube and the hollow handle, and the inner rod is provided with a threaded region which extends beyond the distal end of the outer tube, wherein the threaded region serves for fastening to the rear region of an implant and for tensioning the implant with its rear region against the distal end region of the outer tube, wherein the distal end region of the outer tube is at least partially adapted to the rear region of the implant, wherein the tensioning of the implant against the outer tube takes place by means of a tensioning device having a lever.

The invention discloses a photothermal therapy probe based on a photothermal nanomaterial. The photothermal therapy probe comprises a cylindrical shell with a closed end, the photothermal nanomaterial arranged in the closed end in the shell, an optical fiber for illuminating the photothermal nanomaterial, and a temperature sensor close to the inner wall of the closed end of the shell. The shell is a hard material and provides the ability of the protection of internal devices and tissue puncture. An optical fiber guides laser into the internal part of a probe. The photothermal nanomaterial converts light energy into high-temperature heat energy, and the temperature sensor monitors and controls the terminal temperature of the probe. According to the photothermal therapy probe, the shell is filled with the photothermal nanomaterial, the light energy is converted into the heat energy, the probe reaches a tissue lesion part through minimal invasion, then through an efficient photothermal conversion mechanism of the photothermal nanomaterial, the killing of tumor and other disease tissue cells is implemented, and the photothermal therapy probe has the advantages of a simple structure, convenient operation, a small wound surface, efficient treatment and high accuracy.

A larynx tube (10) for ventilation has a tube shaft (12), which has a ventilation lumen (18), having an oesophageal cuff (28) which is arranged on the tube shaft (12) for blocking the oesophagus (14) and having a drainage channel (46) which has a drainage opening (48′) which is arranged distally in respect of the oesophageal cuff (28). The drainage channel (46) is formed by a drainage pipe (44) which is arranged in a longitudinal groove (42) of the tube shaft (12) which is provided on an outer side (40) of the tube shaft (12). The drainage pipe (44) is adhesively bonded and / or welded to the tube shaft (12). The tube shaft (12) has a proximal and a distal longitudinal shaft portion (56, 58) which are adhesively bonded and / or welded to each other. The distal longitudinal shaft portion (58) is constructed as an injection-moulded component.

The present invention includes a biopsy needle system comprising a tubular cannula having a first longitudinal passage, a first length, and a first grip on the proximal end of the cannula. The tubular biopsy needle has a second longitudinal passage, a second length greater than the first length, an inward beveled distal end, and a second grip on the proximal end. The biopsy needle is both sized and configured to fit within the first passage.

The invention discloses a drainage tube. The drainage tube comprises two drainage tube bodies connected together. The front ends of the two drainage tube bodies are separated to be in a fork shape. The drainage tube is in a double-tube-body type, the large drainage tube body and the small drainage tube body both have the drainage effect, drainage can be carried out on different portions at the same time, single-tube blocking can be prevented, the drainage efficiency can be improved, the operation workload can be reduced, and the probability of infection, caused by the large number of drainage tube bodies, of wounds of a patient is reduced. The tube wall of the large drainage tube body is of a stretchable structure, so that the small drainage tube body can be contracted into the large drainage tube body when the drainage tube is taken out, and injuries to the patient are reduced. The drainage tube has the advantages of being high in drainage efficiency, convenient to use, safe, sanitary, small in wound surface and good in effect.

The invention discloses a manual combined type microelectrode propeller and a production method thereof. The manual combined type microelectrode propeller is used for acquisition and stimulation of bioelectric signals of rodents and birds in free activities, and comprises a cylindrical shell, an upper tightening cap connected with the upper end of the shell and a lower tightening cap connected with the lower end of the shell, wherein an electrode clamp is arranged in the shell, a microelectrode is fixed on the electrode clamp and projects out of the lower end of the shell, a screw rod for pushing the electrode clamp to move projects from the upper end of the shell into the shell and is in point contact with the electrode clamp, a helical spring is arranged between the electrode clamp and the inner side of the lower end of the shell, and the microelectrode is connected with an electrode lead. The manual combined type microelectrode propeller is simple and light in structure and convenient to produce, uses resin as a main material and weighs only about 3g; only one lower tightening cap is consumed in use every time, other main parts are reusable; the microelectrode propeller is applicable to propelling of a low-flexibility electrode and also is applicable to propelling of a high-flexibility electrode; and in addition, the micro-propeller also can be combined to obtain a microelectrode asynchronous propeller for multipoint recording.

The invention discloses a full internal suturing device for tissue repairing, which can simply and rapidly achieve full internal suturing of injured tissues. The full internal suturing device includes7 parts comprising a first anchoring nail, a second anchoring nail, a suturing thread, an inner needle, an outer needle, a depth limiting pipe, and a handle; the handle includes a plurality of partssuch as a pushing rod; according to the full internal suturing device, the first anchoring nail, the second anchoring nail, and the suturing thread are pre-embedded in the outer needle, the outer needle carrying with the first anchoring nail, the second anchoring nail, and the suturing thread enters an interior of a tissue, and the depth limiting pipe can limit the depth that the outer needle is inserted into the tissue; the size of the anchoring nails is small, damage to a tissue surface due to the anchoring nails can be reduced during puncturing; the anchoring nails are fixedly positioned ina pipe cavity of the outer needle, and the risk that the anchoring nails are released during puncturing can be lowered; a doctor can position a suturing position twice; the center of the handle is ofa symmetrical structure, a 360-degree pushing operation can be achieved, and clinic operation of medical workers is facilitated.

The invention relates to a water cooling structure of laser surgical instruments. The water cooling structure comprises a circulatory seat, an outer pipe, an inner pipe, a circulatory pump, an outer circulatory interlayer is arranged between the inner wall of the outer pipe and the outer wall of the inner pipe, a light-guide optical fiber is inserted in the inner pipe, an inner circulatory interlayer is arranged between the outer wall of the light-guide optical fiber and the inner wall of the inner pipe, a liquid return cavity and a liquid outlet cavity are arranged in the circulatory seat; the outer pipe is communicated with the liquid outlet cavity; the liquid return cavity is communicated with the inner pipe; the circulatory seat is provided with a liquid return interface; the circulatory seat is provided with a liquid outlet interface; the outlet and the inlet of the circulatory pump are respectively communicated with the liquid outlet interface and the liquid return interface; a lens is arranged at the front end of the outer pipe; the head of the inner tube is positioned in the outer tube. In the water cooling structure of laser surgical instruments, the inner circulatory interlayer and the outer circulatory interlayer are formed by the outer pipe and the inner pipe sleeved outside the light-guide optical fiber, the cooling liquid is controlled through the circulatory pumpto circulate between the inner circulatory interlayer and the outer circulatory interlayer, the heat generated on the light-guide optical fiber and the lens is taken away, the light-guide optical fiber and the lens are prevented from being overheated, the structure is simple, the volume is small, and the light-guide optical fiber can move forwards and backwards to adjust the irradiation intensityof the lens.

A method for fixing bone in orthopaedic repair operation includes such steps as primary location of fractured bone at the fixing position, installing the fixing nails, deforming the end of said nails for fixing it at the internal side of bone, and using the nail cap to connect the bone to the fixing plate. Said nail features that the deformation at its end is controllable.

The invention discloses a medical instrument and particularly discloses a centrum non-fusion interspinous device which is used for spinal fixation. The device is composed of a front centrum part, a middle centrum part and a rear centrum part, wherein the front centrum part, the middle centrum part and the rear centrum part are sequentially connected into an integral structure. The front centrum part and the rear centrum part are respectively of a U-shaped groove structure. The opening direction of the U-shaped groove of the front centrum part and that of the U-shaped groove of the rear centrum part are opposite. The middle centrum part is of an S-shaped structure, the upper end of the S-shaped structure is located at the bottom of the U-shaped groove of the front centrum part, and the lower end of the S-shaped structure is located at the bottom of the U-shaped groove of the rear centrum part. The centrum non-fusion interspinous device has the advantages that the operation wound is small, the centrum mobility and stability are good after operation, and an implant is not prone to being displaced or disengaged.

The invention discloses a method for artificially inoculating pine wood nematodes by a semiannual masson pine seedling tender tip skin scratch and an application thereof. The method comprises the following steps of: (1) preparing living pine wood nematodes into a pine wood nematode suspension; (2) selecting a tender tip position 3-5cm below the tip of a semiannual masson pine seedling, pulling outneedle leaves, and longitudinally scratching two or more wounds at the skin of the tender tip of the masson pine from which the needle leaves are pulled out; (3) enclosing a small water-tight funnelat the part where the needle leaves are removed by using a sealing film; wherein the lower part of the small funnel clings to the tender tip of the masson pine and is flush with the lower part of thewounds; (4) injecting the pine wood nematode suspension into the small funnel to inoculate the pine wood nematodes; and (5) placing the semiannual masson pine seedlings inoculated with the pine wood nematodes in an outdoor environment for cultivation. The method is suitable for artificially inoculating pine wood nematodes to the semiannual masson pine seedlings, can effectively reduce production cost, and has wide application prospect and important production significance.

The invention relates to a tea bag outer bag film sealing and precutting production device. The tea bag outer bag film sealing and precutting production device comprises longitudinal guide rods connected with a fixed rack, wherein a pair of upper sliding block and lower sliding block which can intermittently move in opposite directions are arranged on the longitudinal guide rods, a pair of hot melting pressing blocks which are used for clamping an outer bag film for sealing are arranged between the upper sliding block and the lower sliding block, a group of elastic cutter head assemblies which are mutually matched for precutting the outer bag film are arranged between the upper sliding block and the lower sliding block at a discharge end, and a pair of horizontal pulling rollers which can intermittently rotate for pulling the outer bag film to move forwards are additionally arranged in a discharge direction. The device not only has a novel structure, but also can simultaneously realize production of sealing and precutting of the outer bag film.

An ultrasonic imaging microwave therapeutic apparatus includes a microwave radiation probe, a microwave generating unit, a laser generating unit, a color Doppler ultrasound imaging unit, and a microcomputer control unit. The microcomputer control unit outputs the microwave power control signal to control and adjust the power of the microwave generating unit. The microcomputer control unit outputs the laser control signal to control the switch-on / off of the laser generating unit. The advantages of using the therapeutic apparatus to treat the lower extremity varicose vein disease are as follows. The closure of the varicose vessel is accurate, firm, and thorough. The effect is definite. The traumas for patients are small. The pain of patients is light. The intraoperative bleeding is less. The recovery of patients is rapid. It is difficult to form deep vein thrombosis, can accurately treat the diseased blood vessel and simultaneously instantly verify the effect of the surgery.

The invention belongs to a medical nursing tool, and particularly relates to a midwifery support plate which is used when medical workers in the gynecology and obstetrics department in a hospital perform cesarean on a pregnant woman. The midwifery support plate is composed of a handle and a handle bush, and is characterized in that a small hole is machined in the upper face of the handle, the handle bush is installed on the right side of the handle, a support plate body is machined on the right side of the handle, and a rubber bush is installed on the exterior of the support plate body. The support plate body is machined into a support plate groove. In this way, the midwifery support plate is used for reducing a trauma surface and pains of the pregnant woman, meanwhile can lower the laborintensity of the medical workers, and protects the health of an infant.

The invention discloses a percutaneous puncture catheter needle, which comprises a needle tube. The end of the needle tube is integrally provided with a needle sleeve, a needle head is tightly inserted into the needle sleeve, the end of the needle head is integrally connected with a needle core, the needle core is provided with a marking area, the end of the needle core extends out of a push block1 and is integrally provided with a push block 2, one end, deviated from the push block 2, of the push block 1 is integrally connected with a handle, and one end, deviated from the push block 1, of the handle is sleeved with a rubber plug. By adopting a mode of using a syringe to extract the negative pressure, a tumor sample is intercepted, after the required sample is intercepted, pulling is stopped, the needle tube is withdrawn from the body, the push block 1 is pushed, so that the tumor sample in the needle tube and the needle sleeve can be extruded out to be tested.

The invention discloses a broken nail extractor. The broken nail extractor comprises a round tube with a milling opening and a locking opening, wherein milling teeth extending downwards are annularly arranged on the milling opening of the round tube, a polygonal clamp piece is mounted at the upper end of the round tube through a connecting mechanism, an inner barrel with the opening arranged downwards is inserted into the round tube, clamping pieces extending downwards and supported to be open towards the outside are annularly arranged at the opening of the inner barrel at intervals, clamping teeth extending axially are arranged on the inner walls of the clamping pieces, all the lower ends of the clamping pieces are positioned on the axial extension locus of the round tube, a polygonal column is fixedly arranged at the upper end of the inner barrel, external threads are arranged in the middle of the inner barrel, and internal threads in screwing match with the external threads are arranged in the middle of the inner wall of the round tube. The broken nail extractor has the effects that the outer ends of broken nails can be fixed and connected rapidly, in addition, the broken nails can be screwed out smoothly, the operation is convenient, one person can complete the operation, moreover, the wound surface is small, and thus the rapid rehabilitation after the operation can be benefited.

The invention provides a minimally invasive transpedicular bone grafting supporting nail suitable for operation of a patient having a vertebral disease. The minimally invasive transpedicular bone grafting supporting nail comprises a first thread section, a second thread section, a spacing section, a cylinder section and a nail tail, wherein the first thread section is located at the front end of the supporting nail, the second thread section is located in the middle of the supporting nail, the spacing section free of a thread is formed between the first thread section and the second thread section in a spaced mode, and the cylinder section and the nail tail which are connected in sequence are arranged at the rear end of the second thread section. By the adoption of sectioned thread structures of the front end and the rear end of the supporting nail, the stability of a holding force can be ensured. During operation, the supporting nail is close to a sunken center, a resetting effect is good. Bone cement or a liquid bone can be also arranged at the sunken center by utilizing the supporting nail, and a bone grafting effect is good.

A method for fixing bone in orthopaedic repair operation includes such steps as primary location of fractured bone at the fixing position, installing the fixing nails, deforming the end of said nails for fixing it at the internal side of bone, and using the nail cap to connect the bone to the fixing plate. Said nail features that the deformation at its end is controllable.

The invention relates to the technical field of medical facility of surgical operation, and particularly relates to a minimally invasive bone grinding tool, which comprises a bone grinding cutter head and a transmission mechanism used for driving bone grinding tools. The bone grinding cutter is connected with one end of the transmission mechanism, and the other end of the transmission mechanism which is away from the bone grinding cutter is connected to a power device which is used for driving the transmission to carry on reciprocating motion. Through operating under surgery mirror, the minimally invasive bone grinding tool realizes the treatment of spinal canal stenosis through a power bone grinding tool, thus solving problems in prior art such as complication of the existing operation, long operating time and big harm brought to patients. Besides, the minimally invasive bone grinding tool can achieve the advantages of small wound surface, quick recovery speed, and low cost, thereby satisfying better the needs of the patients and reducing harm to a lower degree.

The invention discloses a medical device, in particular to a non-fusion fixation device for cervical vertebrae. The fixing device includes an upper body part, a lower body part and a middle part of an integral structure, wherein the upper body part and the lower body part are arranged symmetrically, the middle part is located between the upper body part and the lower body part and connects the upper body part and the lower part, and the cross section of the middle part is U-shaped; the outer surface of the upper part of the main body and the lower part of the main body are provided with several rows of barb teeth; the tail ends of the upper part of the main body and the lower part of the main body are arc-shaped; the direction of the barb teeth is inclined to the tail ends of the upper part of the main body and the lower part of the main body. The invention has the advantages of small operation trauma, strong postoperative vertebral body activity, good stability, and not easy to shift and protrude.

A lockable goose head nail system used as an internally fixing transplant for treating the fracture of femur is composed of a goose head nail with front screw, anti-turn polygonal rod at its rear part and a pressurizing screwed hole at its tail, a slide locking nail, a steel plate with several pressurizing screwed holes and a sleeve tube for containing the anti-turn polygonal rod and slide locking nail in it, and a locking unit.

The invention discloses a finger-side pusher for full-automatic fingertip blood collection. The pusher comprises a fixing frame body structure, a pushing structure, a driving structure and a controller. When the pusher is used, a finger is placed on a supporting plate, the finger end extends into a fixing sleeve to be fixed, a power supply is switched on, the controller starts the pusher, a motorworks and is matched with a coupler to drive a lead screw, and the lead screw slides forwards and inwards in a first sliding groove; meanwhile, the U-shaped fixing end is driven by a fixing shell to move forwards and inwards in a second sliding groove, a spring device compresses a touch pressure block to control the compression strength, a pushing sliding block slightly pushes blood vessels on thetwo sides to the front end of the finger, blood of the blood vessels on the finger side is squeezed to the fingertip, the blood slowly overflows from a wound, and the operation is completed. The pusher standardizes the squeezing method in the finger blood collection process so as to obtain accurate blood detection results. The pusher reduces the puncture depth, the wound surface can be reduced, the puncture pain is relieved, and psychological and physiological burdens of a patient are relieved.

The invention discloses a special tool for the thoracolumbar vertebral fracture repair surgery. The special tool comprises a repairing profile fixing assembly and a sizing filling block, wherein the repairing profile fixing assembly is implanted into the fracture part, so that the repairing target profile is formed, and the sizing filling block is placed into the repairing profile fixing assembly, so that the stable repairing filler is formed. The special tool provided by the invention is simple in structure and convenient for the surgical operation, the surgical time can be effectively shortened, the tool is high in structural flexibility, the size of the embedded block can be selected according to the specific condition of the fracture part, the wound face is small, and a patient recovers rapidly after being treated; the fracture vertebral reduction is satisfactory, the loading capacity of the centrum can be increased, and the fracture healing rate is improved; the occurrence of collapse in the injured scleromere sagittal plane is reduced, and the loss of the postoperative long-term correcting angle is avoided; the special tool is made of porous tantalum, so that the bone forming capacity of osteoblasts is improved.

An adhesive therapeutic cover comprises at least one lift device and a single sheet of at least a two-ply material that includes a cover material with an adhesive on a bottom surface and a backing layer. The cover material defines at least one opening therethrough or at least one opening area which is removable after application of the cover material to a patient to form an opening through the cover material. The at least one lift device comprises a connector adhered or adherable to the cover material in alignment with the opening or opening area. The connector can be connected to a pressurized source of a flowable lifting agent, to urge the flowable lifting agent through the connector and the opening to separate the cover material from patient skin. Sensors can be provided to monitor and / or control the flow of lifting agent through the lifting device during removal of the cover from the patient.

The invention discloses a medicament for preparing and preventing walnut rot and its application. By selecting 35-45 parts of wood tar, 15-30 parts of wood vinegar, 8-14 parts of total alkaloids of Sophora sophora, 2-8 parts of isoflavone lignans, 4-10 parts of astragalus, and 10-20 parts of surfactants Combining with the physical method of sawing off diseased branches, scraping off diseased spots, and spraying walnut orchards with diluents, the amount of pesticides used can be greatly reduced. No chemical pesticides are added to the control agents, no pollution, and low cost. Low, and the wound surface of physical control treatment is small, and the agent can penetrate deep into the xylem, so that the internal and external pathogens can fully contact with the agent, which is conducive to the exertion of the drug effect, and has a significant effect on the prevention and treatment of walnut rot disease, which has the value of popularization and application.

The present invention relates a device (10) for applying a tattoo or a permanent make-up or a similar skin treatment. The device has a grip portion (11) containing a drive unit, and a disposable needle-holder cartridge (13) which can be coupled to the grip portion (11). The needle-holder cartridge (13) comprises an attachment part (20) for attachment to the grip portion (11), a needle-holder head (28) with a stem (30) which partially protrudes from the attachment part (20), a needle supported by the needle-holder head (28), a tip (25) having a needle-guide nozzle (27). The needle-holder head (28) is arranged in the needle-holder cartridge (13) for a linear movement along the axial direction of the needle-holder cartridge (13), in order to cause the oscillation of the end of the needle in and out of the tip (25) of the needle-holder cartridge (13). The drive unit comprises an electric motor (M) having a drive shaft (15), an actuator shaft (41) which can be coupled to the stem (30) of the needle-holder head (28), a cam mechanism (16,17) operatively connected to the drive shaft (15), for transforming the rotary motion of the drive shaft (15) into a linear motion of the actuator shaft (41). For coupling of the actuator shaft (41) with the stem (30) of the needle-holder head (28) magnetic coupling means (39, 40) are provided at the end of the actuator shaft (41) and, respectively, at the end of the part of the stem (30) of the needle-holder head (28) which protrudes from the attachment part (20) of the needle-holder cartridge (13). The magnetic coupling means (30, 40) are adapted to stably, but releasably connect the actuator shaft (41) to the part of the stem (30) protruding from the attachment part (20) of the needle-holder cartridge (13), when the needle-holder cartridge (13) is operatively mounted on the grip portion (11). The attachment part (20) of the needle-holder cartridge (13) is provided with electric conducting means (22) adapted to come into contact with the electric terminals (21) of the electric circuit for energizing the electric motor (M) of the device only when the needle-holder cartridge (13) is operatively mounted on the grip portion (11) of the device, in order to establish electric continuity between the electric terminals (21) of the electric circuit for energizing the electric motor (M) of the device.

The invention discloses a multifunctional monopole electrocoagulator capable of being used below an endoscope. The multifunctional monopole electrocoagulator is formed by connecting an electrocoagulation end (1), a thin and long extending part (2), a rotating part (3), an extending part (4) and a linking cavity (5) in sequence, and the thin and long extending part (2) and the extending part (4) are connected coaxially; a fixed traction handle (6) is integrally arranged on the lower side of the linking cavity (5), and a rotating traction handle (7) is arranged at the tail of the linking cavity(5); a secondary gear set (8) and a primary gear set (9) are arranged in the linking cavity (5). By arranging the secondary gear set (8) and the primary gear set (9), in combination with a major arc flat plate limiter and functional selection buttons, circulating selecting of functions can be realized, and the electrocoagulator with multiple functions can be realized really.