320results about How to "Small wound" patented technology

Arrangements are provided including a base having a bore disposed therein extending from a first surface of the base through a second surface of the base, a fluid transport tube having a first end, a second end opposite the first end, and a lumen having an inner diameter, at least the second end of the tube being received within the bore of the base, and at least one fluid transport enhancing groove having at least a first section disposed in the second surface of the base and in fluid communication with the bore.

The present invention relates to a controllably-released bioceramic thrombus filter and its preparation method. Said thrombus filter is made up by using laser engraved metal tube, its end portion is equipped with a combination portion matched with a conveying portion, its centre is equipped with an elastic wire and its surface is convered with a layer of bioceramic membrance. It can be temporarily placed into blood vessel of human body, also can be permanently placed in the blood vessel of human body. Said invention also provides the concrete working principle of said thrombus filter.

The present invention relates to devices and methods for the repair of hernia. One method for repairing a hernia the steps of making an incision through a skin layer of a patient near the hernia, creating an entrance into the preperitoneal space above the peritoneum at a location above the hernia, identifying and freeing a hernia sac, creating a pocket in the preperitoneal space, directing a surgical patch down through the incision and into the preperitoneal space, and expanding the surgical patch in the preperitoneal space. The method further includes the steps of inserting a distal end of a surgical fastening device through the incision and into the surgical patch, actuating the surgical fastening device to drive a fastener through the surgical patch and into the tissue of the patient, moving the distal end of the surgical fastening device to another location, actuating the surgical fastening device to drive a second fastener through the surgical patch and into the tissue of the patient, and closing the incision with stitches. One surgical apparatus for repairing a hernia includes a surgical stapling instrument for applying at least one surgical staple to fasten a surgical hernia patch to internal body tissue. The surgical instrument includes a handle assembly have a longitudinal axis. A staple cartridge housing is mounted to the handle assembly and is adapted to receive the at least one staple. The staple cartridge housing is dimensioned for insertion through an incision and has a staple actuator mechanism for applying the at least one staple into tissue. An actuation mechanism is operatively coupled to the staple actuator mechanism to operate the staple actuation mechanism.

The invention relates to a spherical universal joint for an external bone fixator and a regulating type bionic external bone fixator. The spherical universal joint for the external bone fixator comprises a spherical head, a sleeve, a sleeve cover, a ball slot, a ball bowl, a locking shaft and a locking slide block, wherein the spherical head comprises a joint ball and a threaded type spherical universal joint connector A arranged on the joint ball, the joint ball is arranged on the inner side of the sleeve, the side of the joint ball close to the threaded type spherical universal joint connector A is contacted with the arc-shaped surface of the sleeve, the threaded type spherical universal joint connector A extends out of one end of the sleeve, the sleeve cover is fixedly connected with the other end of the sleeve, the outer side face of the sleeve cover is provided with a threaded type spherical universal joint connector B, and the inner side face of the sleeve cover is provided with a groove for arrangement of the locking slide block. The regulating type bionic external bone fixator with the spherical universal joint has the advantages of simple structure, light weight, low cost, regulating capability and flexible operation, and targeted and personalized combination and regulation can be realized.

The invention relates to a self-locking joint for an external bone fixator and a regulating type bionic external bone fixator. The self-locking joint for the external bone fixator comprises a self-locking joint head A, a self-locking joint head B, a self-locking joint pin shaft and a spherical pad, wherein the self-locking joint head A comprises a spherical self-locking joint hinge seat and a threaded self-locking joint connector A arranged on the spherical self-locking joint hinge seat, the self-locking joint head B comprises a self-locking joint hinge plate and a threaded self-locking joint connector B arranged on the self-locking joint hinge plate, the self-locking joint hinge plate is connected with the spherical self-locking joint hinge seat through the self-locking joint pin shaft in a hinge mode, the diameter of the self-locking joint hinge plate is smaller than the diameter of the spherical self-locking joint hinge seat, and the spherical pad is sleeved on the threaded self-locking joint connector B and is contacted with the arc-shaped surface of the spherical self-locking joint hinge seat. The regulating type bionic external bone fixator with the self-locking joint has the advantages of simple structure, light weight, low cost, regulating capability and flexible operation, and targeted and personalized combination and regulation can be realized.

The invention relates to a damping joint for an external bone fixator and a regulating type bionic external bone fixator. The damping joint for the external bone fixator comprises a damping joint head A, a damping joint head B, a damping joint pin shaft, a gasket groove, a butterfly gasket, a U-shaped fixing clip and a gasket cover, wherein the damping joint head A comprises a spherical damping joint hinge seat and a threaded damping joint connector A arranged on the spherical damping joint hinge seat, the damping joint head B comprises a damping joint hinge plate and a threaded damping joint connector B arranged on the damping joint hinge plate, the damping joint hinge plate is connected with the spherical damping joint hinge seat through the damping joint pin shaft, and the diameter of the damping joint hinge plate is smaller than the diameter of the spherical damping joint hinge seat. The regulating type bionic external bone fixator with the damping joint has the advantages of simple structure, light weight, low cost, regulating capability and flexible operation, and targeted and personalized combination and regulation can be realized.

A novel usage of poly-L-lactic acid as medical shape memory material is provided. Forming the poly-L-lactic acid to initial shape under the temperature of 190í½210íµ and pressure of 2í½10Mpa to obtain the poly-L-lactic acid with shape memory property. The present invention uses poly-L-lactic acid as medical degradable shape memory material for the first time. It can be widely applied in minor trauma invasive stent, vessel jointing, operation suture line, bone fracture fixation and other medical field.

A wound closure assembly using magnets aids in healing by drawing skin together without using stitches. The assembly has a flexible sheet with two magnet coupling ends. Each magnet coupling end is correspondingly shaped to a channel within each of two channeled magnets. The channeled magnets are coupled to the opposite ends of the flexible sheet, and also have an adhesive layer that adheres the magnets to the patients skin. The practitioner, such as a doctor, places the two magnets on opposite sides of a wound, and uses the flexible sheet to guide and hold the position of each magnet on the patient's skin. The practitioner slidably disengages the flexible sheet from the magnets in the lengthwise direction of the magnet channels, thereby leaving only the magnets around the patient's wound. The magnets on each side of the wound attract each other, thereby reapproximating the wound's edges.

A wound closure device using magnets to draw skin together without using stitches. When two skin adhering magnets are placed on opposite sides of a wound in a polar opposite configuration, the magnets attract each other, thus drawing the skin underneath the magnets together. Each device has a magnet, an insulation layer that separates the magnet from an absorbent layer that absorbs wound secretions, a polymer layer having a plurality of holes that allow drainage of potential build-up secretions away from the absorbent layer, and an adhesive layer on the bottom that allows the device to adhere to the patient's skin. The device may be enclosed within a polymer casing that use flexible magnets, or a plurality of segmented magnets to help align the device along a non-linear (curved) wound.

The invention provides supermolecular hydrogel containing chitosan and gelatin as well as a preparation method and an application of the supermolecular hydrogel and belongs to the field of biomaterials. The supermolecular hydrogel contains a part formed by combining chitosan modified with a beta-cyclodextrin carboxylated derivative and gelatin under the host-guest interaction; chitosan is graftedwith the beta-cyclodextrin carboxylated derivative through an amide group. The preparation method comprises the steps as follows: the chitosan is grafted with the activated beta-cyclodextrin carboxylated derivative through the amide group, then, the gelatin is added, so that the grafted beta-cyclodextrin carboxylated derivative and an aromatic group of the gelatin are in host-guest interaction, and the supermolecular hydrogel containing the chitosan and the gelatin is obtained. The supermolecular hydrogel containing the chitosan and the gelatin has shear thinning and self-healing characteristics and can be used as an injectable cell or drug carrier. The beta-cyclodextrin group in hydrogel and the aromatic group in the gelatin can be used in cell carriers and tissue engineering materials through the host-guest interaction.

A medical robot cover covers an external surface of a medical robot including: a main unit that stands on a base; and an arm member attached to one end of the main unit in a swingable or extensible manner. The medical robot cover includes: an attaching portion to be wound around at least one of the main unit and the arm member, on an inner circumferential surface of the cover facing the external surface of the medical robot. Therefore, the medical robot cover can be easily placed on the medical robot. Further, the medical robot cover can be restricted from being damaged due to extension or swinging of the arm member, and can be restricted from inhibiting the action of the arm member.

The invention relates to disposable purse-string forceps for a laparoscope, which are used for realizing manual purse suture in the abdominal cavity of a patient and overcome shortcomings that an instrument for a laparoscope which is used for realizing circumferential purse suture for surfaces of digestive tract tissues in the abdominal cavity of the patient cannot enter the pneumoperitoneum to operate in the prior art. The disposable purse-string forceps comprise forceps and an opening and closing driving mechanism which is connected with the forceps, the driving mechanism is disposed in a shell, the shell comprises a rod arranged at the front end and a holding portion connected with the rod, a push rod is disposed in the shell, the tail end of the push rod extends out of the shell, needle holes are arranged on two sides of the inside of the rod, needles penetrate into the needle holes, head ends of suture threads are detachably fixed on needle heads, and needle tail ends are connected with the push rod. The driving mechanism drives the forceps to open and close, the forceps can tightly clamp tissues after being closed, the needles with the suture threads are filled in the needleholes, and are driven by the push rod to penetrate into the tissues, then the suture threads are tied tightly by a tool, and accordingly suture is realized.

The present invention relates to one kind of controllable releasing thrombus filter and its making process. The thrombus filter capable of catching fallen thrombus and avoiding thrombosis is made with super elastic metal pipe with shape memory effect and through laser carving. The thrombus filter has combining part in the end for fitting the sender. Compared with available technology, the present invention has the advantages of being recoverable, capacity of being set inside blood vessel temporarily or permanently, and no position shift caused by impact during being set.

Provided are an elastic thread setting method in an endoloop and an elastic thread endoloop. The elastic thread setting method comprises the steps that one or more elastic threads are arranged along the outer wall of an endoloop spearhead, one or more threading holes is formed in the outer wall of the front end of the spearhead, the front ends of the elastic threads penetrate into the corresponding second ports of the threading holes, penetrate through the threading holes and penetrate out of the corresponding first ports of the threading holes, elastic thread loops are formed in a slipknot mode, the loops are reversely arranged on the outer wall of the front end of the spearhead in a sleeving mode, and the pore diameter of each threading hole is larger than the diameter of the corresponding elastic thread and smaller than the diameter of the knot point of the corresponding slipknot; when the tail ends of the elastic threads are tightened to make the loops get away from the pipe orifice of the spearhead and the knot points of the slipknots are tightened to the first pores, the first pores are taken as acting points, and the elastic threads are continuously tightened to make the pore diameters of the elastic thread loops gradually shortened. The invention further discloses the elastic thread endoloop using the setting method, the structure is simple, operation is convenient, an operation can be completed by one person, misoperation can be avoided, the wound surface of target tissues after the operation is extremely small, and postoperative complications and the probability of bleeding can be reduced.

A micro-scalpel used to treat carpal tunnel syndrome has an elongated columnar blade, one end of the blade obliquely cut to form a tip, the obliquely-cut surface of the tip sufficiently sharp to pierce and cut skin of a patient. The other end of the blade is connected to a hollow sleeve connector, and the hollow sleeve connector is combined with a handle. The micro-scalpel is oriented perpendicular to a transverse carpal ligament, and swings from its proximal end toward its distal end to cut the transverse carpal ligament, thereby reducing the number of cuts of the blade and saving time for completing the carpal tunnel surgery.

The invention relates to an optical fiber sensing based micro intracranial multiparameter sensor. The sensor comprises a light source system, a signal processing system, a circulator and an optical fiber micro intracranial multiparameter sensor probe, wherein the broadband light sent by a light emitting diode in the light source system reaches the optical fiber micro intracranial multiparameter sensor probe after passing through the circulator; the light reflected by the optical fiber micro intracranial multiparameter sensor probe passes through the circulator again and then is received by the signal processing system; and the signal processing system detects wavelength change in the light signal via a wavelength scanning device, converts the received light signal to the electrical signal and computes the intracranial pressure and brain temperature data. The sensor has the following advantages: the sensor farthest reduces wounds and chances of infection and can be compatible with CT (computed tomography), MRI (magnetic resonance imaging) or electroencephalogram examination; and the sensor is immune to electromagnetic interference, so that the patients can undergo CT, MRI or electroencephalogram examination while undergoing intracranial pressure and brain temperature monitoring, thus greatly facilitating diagnosis and treatment.

The invention discloses a device for ligaturing left auricle and the utilization method. the device comprises ligaturing line and conveying system: conveying system comprises internal and external sheath tube, the internal part is hollow; the length of internal sheath tube is little longer than that of external sheath tube, the internal sheath tube can be rested in long sheath tube; godet is set on internal sheath tube, and the front part is equipped with circular ring; hat is connected with front part of internal sheath tube. The utilization method comprises following steps: putting internal sheath tube into external sheath tube, keeping one piercing slot on hat is align to ligaturing line; threading the other end of ligaturing line by using godet through internal sheath tube to form loop; looping left auricle with formed loop, tightening ligaturing line to ligature left auricle. The invention is characterized by small injury area, low risk and prevention of stroke.

The invention discloses an elastic thread ligator with a thread cutting device and a method for setting the elastic thread. The elastic thread ligator with thread cutting device comprises a gun head,a gun body, a negative pressure tube and at least one elastic thread. At least one thread penetrating hole is formed in the tube wall of the gun head. The thread penetrating hole comprises a first hole and a second hole. The negative pressure tube passes through the gun body and extends to the gun head after being connected with the negative pressure device. At least one electric drive device is arranged on that gun body. The elastic wire is formed into elastic wire sleeve in the form of movable knot and is sleeved on the outer wall of the gun head. The elastic wire is penetrated through the first hole, passes through the thread penetrating hole, and then passes through the second hole and is connected with the electric driving device. The two sides of the gun head are respectively provided with blades, the gun body is provided with a push-pull driving part, and the output end of the push-pull driving part is provided with a push rod, which extends to the second hole and resists the elastic line. The invention has the characteristics of complete thread cutting, convenient operation and the like, and is applied to the field of medical devices.

The invention discloses a compound drug for controlling citrus canker, comprising the following components in percentage by weight: 22.5%-30% of allicin, 36%-48% of streptomycin, 6% of wetting diffusant and the balance of kieselguhr filler. The 6% of wetting diffusant consists of 2% of sodium butyl naphthalene sulfonate (NEDALBA-75), 2% of sodium lignin sulfonate (M-9), 1% of lauryl alcohol polyoxyethylene ether (JFC) and 1% of carboxymethylcellulose (CMC). The compound drug for controlling the citrus canker can be used for controlling treetop citrus canker and fruit canker, is the low toxicity and residual free super active biogenic bactericide, has specially good effect on the canker and the control efficiency of more than 80 percent, is safe for fruit tress and is environmentally friendly; and the compound drug has the function of repelling pests spreading the citrus canker and can effectively reduce wounds and cut off propagation paths.

The invention belongs to the technical field of medical appliances and relates to three-vane fan-shaped forceps with a passage for a minimally invasive surgical operation. The forceps comprise a curvature knob, an opening and closing knob, a tubular forceps rod, a flaky forceps rod, a tubular forceps rod and a three-blade forceps head, wherein the curvature knob is arranged on a handle and used for controlling the curvature of a rod; the opening and closing knob is used for controlling the opening and closing of the three-blade forceps; and the tubular forceps rod, the flaky forceps rod, the tubular forceps rod and the three-blade forceps head are connected in turn. The forceps are characterized in that: the flaky forceps rod is bent in a semi-arc shape and the middle of the flaky forceps rod is provided with an appliance passage. The forceps have the advantages that: after the three-vane fan-shaped forceps with the passage are inserted into a puncture outfit (a puncture passage), other surgical appliances can enter a surgical site through the appliance passage of the flaky forceps. The opening and closing knob is rotated, so that the three-vane forceps head stretches; and the curvature adjusting knob is rotated, so that the field of operation is exposed better. Two different appliances enter one passage, so that the belly wall wound of a patient is minished and the surgical operation of a doctor is facilitated. Operation is simple and convenient and surgical safety is enhanced. The forceps can be applied to a single-hole laparoscope and a multi-hole laparoscope.

The invention discloses a one-machine multi-row vibration-type precise counting rice and wheat seed sowing device. The one-machine multi-row vibration-type precise counting rice and wheat seed sowingdevice comprises a conveying device and a vibration device arranged on one side of the conveying device, the vibration device comprises a vibration disc base at the bottom, and a plurality of spring brackets are symmetrically arranged on the surface of the vibration disc base circumferentially; a seed box is arranged on the spring brackets, a plurality of spiral climbing rails are arranged on theinner wall of the seed box at intervals from bottom to top, and a plurality of seed outlets are symmetrically formed in the top wall of the seed box; each formed outlet corresponds to one spiral climbing rail, seed guiding rails communicated with the seed outlets are symmetrically arranged on the top outer wall of the seed box, and the seed outlet ends of the seed guiding rails extend to the portion above a conveying belt. According to the one-machine multi-row vibration-type precise counting rice and wheat seed sowing device, seeds become orderly in a single line form from a disordered form through the vibration device, and precise and efficient sowing is achieved through counting of a sensor. According to the one-machine multi-row vibration-type precise counting rice and wheat seed sowing device, firstly, the seeds are arrayed in order for convenient counting and seed division for holes, then, the seeds are discharged, the seeds are uniformly and precisely divided for the holes, andthe damage to the seeds is low. In addition, the whole one-machine multi-row vibration-type precise counting rice and wheat seed sowing device is simple in principle and structure and low in cost.

The invention discloses an elastic thread ligation device and an elastic thread setting method; a gun head comprises a gun head body, a pull rod mount, a gun head sleeve, an elastic thread pull rod, and a gun head fixing sleeve; the outer wall of the gun head of the ligation device is provided with at least one elastic thread and a corresponding traction line, and the two penetrate one thread hole; the front end of the elastic thread forms a slipknot bail sleeved on the gun head fixing sleeve, and is hooked backwards on a hook; the front end of the traction line is connected with the elastic thread; when the elastic thread is released from the hook, the traction line and the elastic thread are simultaneously drawn, so the bail of the elastic thread and the traction line can leave the gun head; the elastic thread is continuously pulled, the thread hole on the gun head fixing sleeve can press the slipknot on the elastic thread bail; a bail hole diameter of the elastic thread can be reduced under the effect of two opposite forces. The elastic thread ligation device is simple in structure, convenient in operation, so operation can be completed by one person with no maloperation; postoperation wound surface of a target organ is very small, thus reducing postoperation complications and hemorrhagic rate.

The invention relates to a microwave ablation antenna for interventional treatment of lung cancer. The microwave ablation antenna for interventional treatment of lung cancer comprises a zirconia needling tip, a coaxial cable, a water retaining shaft, a water diversion pipe and a needle rod. The front portion of an outer conductor of the coaxial cable is cut off two spaced sections and exposed with a dielectric layer to form two emitting windows, the outer conductor and an inner conductor of the front end of the coaxial cable are in short circuit through soldering, and epoxy resin glue for fixing is filled between the soldering and a central blind hole of the zirconia needling tip as well as between the dielectric layer at the emitting windows and the central blind hole of the zirconia needling tip. The microwave ablation antenna for interventional treatment of lung cancer is provided with a double-window structure at the head portion to be suitable for the dielectric coefficient of the lung tissue and exactly matched with the lung tissue, has the ablation diameter of more than 5 cm and is an effective tool for ablation of lung cancer, especially large lung cancer.

The invention provides a dynamic locking plate for treating a fracture of a neck of a femur. The dynamic locking plate comprises a tuberosity supporting plate and three locking screw holes, wherein the inner surface of the tuberosity supporting plate is bent to be matched with the lower part of a greater trochanter of the femur in shape; the positions of the three locking screw holes including a first locking screw hole, a second locking screw hole and a third locking screw hole in the tuberosity supporting plate are based on a locating point A at the middle of the tuberosity supporting plate, and distributed around the locating point A; the first locking screw hole, the second locking screw hole and the third locking screw hole are distributed to form a triangle in the tuberosity supporting plate; axes of the three locking screw holes are parallel; based on a vertical line AO of the tuberosity supporting plate where the locating point A is positioned, the axial lines of the three locking screw holes are inclined upwards and form longitudinal included angles theta with the vertical line AO, which are equal to 15-35 degrees. The locating point A is located within the range that the geometric center of the tuberosity supporting plate is taken as a center, and the diameter is 4 mm. The dynamic locking plate enables the broken end of a fractured bone to be subjected to micro-movement and compression, and adapts to dynamic characteristics of bone growth when improving the internal fixation stability of the neck of the femur, so as to be more beneficial to healing of the broken end of the fractured bone.

The invention relates to a method for culturing new species by merging distant mutagenesis among various plants, which comprises the following steps: 1, the root or the tuberous stalk of a plant is selected as a parental stock; 2, the root of the selected plant is fully removed and used as a graft, and the fully root-removing part is a merging surface; 3, before the parental stock is merged, the merging surface is selected; 4, the graft and the parental stock are merged, the cross sections of the graft and the parental stock are tightly merged and aligned to form a layer; 5, a merging opening is fixed, the pierced part of the root or the tuberous stalk by an iron nail or a bamboo pegwood is fixed and covered by soil and compacted; 20 to 25 days later after mergence, the merging opening is healed, and tissue starts to merge; the graft starts to grow, a new root grows up at the merging opening 20 to 30 days later for facilitating the smooth growth, the blossom and the fructification of the graft, and a new species is mutagenized. In the distant adverse mutagenesis method, plants of different species are crossed and mutagenized by the distant mutagenesis, mutagenized offspring mutagenesis is far higher than natural mutagenesis, and the characteristics of the mutagenesis can be stably inherited. The method is simple to operate, has wide breeding material, rapidly stabilizes the offspring characteristics, accelerates the breeding process and is easy to generate new species and breeds.

The invention provides a vein guillotine with less operation injury, less pain to patient and simple and convenient operation. The whole vein guillotine takes lathy tubular shape and comprises an external sleeve for winkling the vein and an internal sleeve for injecting medicine. Two sleeves are sheathed and equipped with handles, the front part of which is attached with a steel tube. A middle sleeve is arranged between the external sleeve and the internal sleeve. The middle sleeve is provided with a cutting knife handle, the front end of which is attached with a cutting knife steel tube. Three layers of sleeves are sheathed sequentially, and the steel tubes of the three layers of sleeves are sheathed with each other sequentially. The vein guillotine is used for carrying out the operation for remedying the varicosity, thereby not only relieving the disease of the patient radically and causing no injury and pain caused by usual operation to the patient but also saving a lot of medical expense for the patient.

The invention discloses a steel wire cerclage fixing device which comprises a first steel wire guide device, a second steel wire guide device and a steel wire screw-breaking device, wherein the steel wire screw-breaking device comprises an outer sleeve and an inner core; the outer sleeve comprises a holding part; and the inner core comprises a rotary handle and a working rod. A groove parallel to the central axis of the rod body is arranged on the two sides of the working rod respectively; the rear end of the working rod is connected with the rotary handle; the front end of the working rod is divided into three parts: a reamer part at the middle is vertical to the rod body, and the steel wire locking parts on the two sides are convex-arc inclined planes; the far end of each convex-arc inclined plane is connected with the reamer part; the near end of each convex-arc inclined plane is not connected with the reamer part; and the convex-arc inclined planes are connected with the grooves on the two sides of the rod respectively and extend. In the invention, the steel wire screw-breaking device can screw and then break the steel wire; and the steel wire cerclage fixing device disclosed by the invention has multiple functions, is convenient to use and clean, and can minimize the wound of a patient.