46results about How to "Guaranteed healing" patented technology

The invention belongs to the field of forging, and specifically relates to a forging method with a small screw-down rate, which is capable of efficiently healing hole flaws inside a blank with a height-diameter ratio. The forging method adopts a numerical simulation technique to research the distribution status of strain inside the blank in the conventional forging process, thus providing a radial wide anvil compaction process which comprises the following steps of: pressing down the blank by virtue of the radial wide anvil compaction process, wherein flat plates serve as upper and lower anvil; after radial the wide anvil compaction process, returning the blank to a furnace to be re-heated and be subjected to thermal insulation; and turning over the blank by 90 degrees and drawing out the blank by the upper and lower anvil. The forging method is suitable for a free forging process for various blanks (for example continuous-casting blanks) or steel ingots with a large height-diameter ratio and the like, and particularly has good effects on the blank with the large height-diameter ratio and serious centre looseness. Forged pieces produced by the forging method can ensure the healing of the hole flaws inside the blank with the large height-diameter ratio, so that the possibility of forged piece scrapping caused by the loosened and non-forged center of the forged piece is greatly reduced; and moreover, a forged piece with a larger size can be manufactured by virtue of a small screw-down rate.

The invention discloses a locally expanding balloon catheter, comprising a catheter body, wherein the middle part of the catheter body is sleeved with an expanding capsule body the wall of which is connected with the catheter body in a sealing manner; a fluid passage is arranged in the catheter body, the front port of the fluid passage is communicated with the expanding capsule body, the tailing port of the fluid passage extends to the tailing end face of the catheter body, and a first one-way valve is arranged at the tailing part of a first fluid passage. The invention has moderate thickness, can provide sufficient support and expansion and does not generate excessive pressure on urethra mucosa and external orifice of urethra to cause patients to fell discomfort or even cause new iatrogenic stenosis. The invention is a thinner silicone catheter before fluid is injected into the expanding capsule, and can expand to a required size after a certain amount of fluid is injected. The invention can play the role of local hemostasis by compression at early period after surgery, and has the functions of local intermittent expansion during the period of catheter retention.

The invention relates to the field of forging, and particularly relates to a forging method for efficiently healing steel ingot internal hole type defects by using small pressure. The forging method can be applied to an open die forging process of directly drawing steel ingots with various sizes into shaft members. The method includes the following steps: 1), performing pre-drawing on the steel ingot after clamp pressing, chamfering and unnecessary riser cutting; 2) using an upper flat anvil and a lower flat anvil to perform two-pass one-way large deformation on a blank; 3) re-melting and re-heating the blank, and keep warming after one-way large deformation; 3) turning over the blank 90 degrees, and drawing the blank by using the upper flat anvil and the lower anvil. The forging method can be applied to the open die forging process of directly drawing the steel ingots with various sizes into the shaft members, can heal the steel ingot internal hole type defects, and can greatly reduce the possibility of scrap of a forge piece due to poor forging joint caused by a loose center. The forging method needs the small pressure, can forge large forge pieces by using a small compressor, and expands the application range of the small compressors.

The invention discloses a medical hemostasis first-aid belt and a hemostyptic thereof. The first-aid belt comprises a body, wherein the periphery of the bottom surface of the body is provided with a gluing region at which an oily leather is arranged; the middle part of the body is provided with a hemostasis bag; and vacuum air bags are arranged at the periphery of the hemostasis bag. In addition, the invention further discloses the hemostyptic used for the medical hemostasis first-aid belt. The hemostyptic comprises medicaments with hemostasis, diminish inflammation, analgesia, infection prevent and tetanus prevention effects, such as common cephalanoplos herb, pseudo-ginseng, cicada slough, rhizoma arisaematis, corydalis tuber, bezoar, borneol, pearl powder, red paeonia, excrementum pteropi and dalbergia wood. Since the technical scheme is adopted, compared with the prior art, the medical hemostasis first-aid belt disclosed by the invention has the characteristics of simple structure, convenience in use, portability, good hemostasis effect, less possibility of infection, wide application range and the like.

The invention discloses the electrotome handle, lighting electrotome handle, vacuum suction tube, vacuum pump of an attraction electrotome. In the hollow electrotome handle, a power circuit of the electrotome is arranged in the electrotome handle or the wall of the electrotome handle; an attraction opening is formed the tail of the electrotome handle; a conducting blank pipe is provided with a hollow channel, and the rear end of the conducting blank pipe is arranged in the front of the electrotome handle; and the rear end of the conducting blank pipe is connected with the power circuit of the electrotome, and the front end of the conducting blank pipe extrudes out of the electrotome handle and forms a thin tip suction inlet forward. The electrotome provided by the invention absorbs smoke generated in the process of operation uninterruptedly, and during the operation on a narrow and deep area, the electrotome can penetrate into the area to absorb the generated smoke, liquid impurities and the like close to the electrotome completely in time and discharge the smoke, the liquid impurities and the like to the outside or a sterilizer without blocking the negative pressure suction pipe and the negative pressure pump; and in an operation area of a narrow dark area, an illuminating lamp on the electrotome can also illuminate conveniently and clearly. In addition, an electrotome head, the electrotome handle and the negative pressure pump can be disassembled conveniently and quickly to be replaced and disinfected, and a filter screen and a filter can be replaced conveniently.

The invention discloses an anti-bacterial operation suture line and a method for preparing the same. The anti-bacterial operation suture line is mainly prepared from, by mass parts, 25-45 parts of polypropylene resin, 2-14 parts of polyglycolide, 6-20 parts of polylactide, 4-16 parts of poly glycolide-co-lactide, 8-20 parts of triclosan and 35-55 parts of double distilled water. Compared with the prior art, the anti-bacterial operation suture line has the advantages that the anti-bacterial operation suture line is good in anti-bacterial effect and can effectively prevent operative wound infection; and the tension maintenance time of the anti-bacterial operation suture line is long, and complete healing of operation wounds can be guaranteed.

The invention discloses a finger exercising device. The finger exercising device is characterized in that a paper clip is pasted on a fingernail of a wounded finger by using 502 adhesive, wherein a pulse pressing band is made to be a ring and sleeves on a wrist of the wounded finger; one end of a rubber band is fixed to the pasted fingernail of the wounded finger; the other end of the rubber band is fixed to the pulse pressing band of the wrist; the length of the rubber band is adjusted to make the wounded finger in the flex state; when the wounded finger outspreads, the matched tendon can slide without tension; when the wounded finger flexes, the wound ginger is passively flexed by means of the tension of the rubber band. Through the arrangement, the matched tendon has no tension no matter the finger flexes or outspreads to move; consequently, the healing of the tendon without tension can be ensured; meanwhile, the adhesion of the tension can be avoided by the early sliding of the tension, so that the function of the wound finger can be well restored.

The invention discloses a precise fruit tree girdling device, which comprises a mobile platform, a drive motor, a storage battery and a controller; a fixed cover is fixedly connected to the upper surface of the mobile platform, and an upper cutting blade and a lower cutting blade are arranged inside the fixed cover, and the upper cutting blade and the lower cutting blade are arranged inside the fixed cover. A peeling knife is fixedly connected between the cutting blade and the lower cutting blade; a cream nozzle is arranged behind the fixed cover, and the cream nozzle is connected with a pump and a healing paste box. The present invention is equipped with motor-driven cutting blades and stripping knives to efficiently cut and peel the bark; the present invention is provided with a moving table adjusted by a screw, a pointer and a scale to precisely control the depth and width of circumcision , to avoid hurting the woody layer of the trunk of the tree; the present invention is provided with a healing cream spraying device, which sprays the ring cutting groove of the tree after ring cutting, so as to avoid infection and festering of the tree; the present invention is provided with a fixed rotating device, a lifting device and a wire The mobile table adjusted by the rod ensures that the incision is neat and free of burrs.

The invention discloses a medicinal hemostatic. The hemostatic is prepared from 25 Chinese herbal medicines in parts by weight: 3 to 5 parts of common cephalanoplos herb, 3 to 5 parts of panax pseudoginseng, 3 to 5 parts of mugwort leaf, 3 to 5 parts of hairyvein agrimony, 3 to 5 parts of radix callicarpa, 1 to 3 parts of imperata cylindrical, 1 to 3 parts of cicada slough, 2 to 4 parts of rhizoma arisaematis, and the like. Compared with the prior art, the hemostatic has convenient use and low cost by using the technical solution, and greatly improves hemostatic effect; the affected part heals completely without operation, and is free of other complications. The hemostatic not only is used before operation, such as the trauma, but also is used after operation, such as the cut caused by the operation; since applicable range is wide, the hemostatic is not only applicable for hospital, but also applicable for family, journey, and the places which are easy to injure, such as battlefield, playground.

The invention discloses a hook plate complex for locking an acromioclavicular joint, relates to an internal fixing device used for treating an acromioclavicular joint dislocation fracture and a clavicle distal end fracture, belongs to the technical field of medical facilities of departments of orthopaedics, and mainly solves the treating problem of the acromioclavicular joint dislocation fracture. The hook plate complex for locking the acromioclavicular joint is composed of a hook plate complex body, locking screws, a locking main nail and a hole drilling kirschner wire. Three grooves with threads are formed in one end of the hook plate complex body, and two to three locking screws can be installed according to the condition of fracture fixation; grooves are formed in two sides of one end of the hook plate complex body; a hollow hole is formed inside the locking main nail, and the hole drilling kirschner wire can pass through the hollow hole; the other end of the hook plate complex body is provided with a thread; a hole with a thread is formed in the hook end of the hook plate complex body. The structure is simple, the operation is convenient, the fixation is firm, healing of the fractures and healing of ligaments are guaranteed, and a basis is provided for recovery of an acromioclavicular joint function.

The invention provides a gel containing MG53 protein / MG53 mutant protein as well as a preparation method thereof and application thereof, and belongs to the technical field of medicines. The gel containing the MG53 protein / MG53 mutant protein is prepared from the following components: a gel substrate, a preservative, an anti-oxidant, a protein protector, and MG53 protein / MG53 mutant protein freeze-dried powder. According to the gel containing the MG53 protein / MG53 mutant protein and the preparation method thereof provided by the invention, the protein active ingredients of the MG53 protein / MG53 mutant protein can be kept stable under a long-term room-temperature storage condition; healing of wound surfaces such asdiabetic feet, bedsores, burns and scalds is effectively ensured; a restoration stage of a patient is shortened; and pains of the patient are effectively relieved.

The invention discloses a fixing device for the reduction of calcaneus fracture, which comprises an aiming frame and a main nail. The aiming frame and the calcaneus are positioned and fixed relative to each other, a positioning main nail is arranged through a main aiming part, the relative position and angle of the main nail and the calcaneus can be accurately positioned, and then the main nail isscrewed into the calcaneus of a patient; a first positioning screw is arranged through a first auxiliary aiming part, the first screw is screwed into the calcaneus, and the first screw is also screwed with a first threaded hole and passes through the first threaded hole, and a second positioning screw is arranged through a second auxiliary aiming part, the second screw is screwed into the calcaneus and the second screw is also screwed with a second threaded hole and passes through the second threaded hole, so that the relative positions and angles of the first screw and second screw and the calcaneus are accurately positioned, and the relative positions and angles of the first screw and second screw and the main nail are accurately positioned. The main nail, the first screw and the secondscrew are crossed and matched, the reset and fixed calcaneus fracture part are combined together, the length, width and height of the calcaneus are restored, the posterior talar articular surface isfixed and restored, the postoperative complication is reduced, and the risk of the necrosis of the skin flap is reduced.

The invention belongs to the technical field of medical instruments, and particularly relates to an integrated fixer for a pelvis. The integrated fixer comprises a first needle clamp and a second needle clamp, wherein the first and second needle clamps are respectively connected with a first frame body and a second frame body through universal joints; the other ends of the first and second frame bodies are connected with each other through an adjustment bolt in an angle-adjustable manner. According to the integrated fixer for the pelvis, an external fixed bracket is simple and reasonable in structure; the fractured part of the knee joint can be easily and reasonably fixed through effective operation to guarantee healing of the fractured part, so that the original function and the original appearance of the fractured part can be quickly recovered, and athletic ability of the fixed part is increased; on the premise of a treatment effect, the simplicity and the reliability of the operation are guaranteed, and the straightening and treatment effects on the fractured part are greatly enhanced.

The invention relates to the technical field of locking external fixation for fracture dissection, in particular to a locking external fixation frame plate system for limb long bone and short bone fracture dissection. A present external fixation frame has the defects that the number of nails capable of being implanted in each fracture segment is limited, fixation is not exact, and the broken ends of a fractured bone are not stable; the present external fixation frame is too large in appearance and size, brings inconvenience to nursing and makes a patient likely to generate a sense of fear; the later-period fracture nonunion rate is high, and external fixation needs to be replaced with internal fixation after soft tissue becomes closed from being open. The locking external fixation frame plate system comprises a locking external fixation frame plate and screws matched with screw holes in the locking external fixation frame plate. The shape, length and width of the locking external fixation frame plate are matched with those of the dissection surface of a fracture, and the multiple locking screw holes are distributed in the plate. Small kirschner wire temporary fixation holes are formed among the screw holes or not, and one or more pressurization screw holes are formed or not. Each screw is divided into three segments, the front end of each screw body is a threaded part, the middle segment of each screw body is an unthreaded rod part, and the tail end of each screw is provided with a thread matched with the corresponding locking screw hole.

The invention discloses a knife edge structure, a hip screw and a femoral fracture treatment device, the body of the knife edge structure has a hub-and-spoke type cross section, each hub-and-spoke type portion of the knife edge structure comprises at least one knife groove and knife blades formed at tops of two side walls of the knife groove, and projections of tops of the knife blades are disposed in the bottom of the knife groove. The knife edge structure has a special structure with a small opening and a large cavity, the problem that a fixed position is not stable due to the fact that rotation easily occurs can be prevented, position of the femoral fracture treatment device having the hip screw with the knife edge structure can be durable during a long-term use process, and the bone can be properly healed.

The invention belongs to the technical field of medical equipment and particularly relates to a lower-limb single-side orthosis. The lower-limb single-side orthosis comprises a first needle clamping device and a second needle clamping device, the first needle clamping device and the second needle clamping device are connected through a telescopic rod, the two ends of the telescopic rod are connected with the first needle clamping device and the second needle clamping device through universal joints, a regulating rod device is arranged on the telescopic rod, and the first needle clamping device and the second needle clamping device are on the same line with the central axis of the telescopic rod. The lower-limb single-side orthosis is simple and reasonable in structure, a lower-limb fracture site is simply and reasonably fixed through effective operations, the healing of the fracture site is guaranteed, so that the fracture site rapidly recovers the original function and appearance, the movement capability of the fixed site is improved, the simplicity and the reliability of the operations are guaranteed on the premise that the treatment effect is guaranteed, and the correction and treatment effects of fractures are greatly improved.

The invented cervical vertebrae front-path steel plate bone screw locking device relates to a kind of cervical vertebrae front-path steel plate and its fixing component, suitable for curing the diseases of cervical vertebrae regression, wound and tumor, etc. Its structure possesses butterfly steel plate and bone screw, said bone screw can be assembled into the bone screw hole on the butterfly steel plate, and it is characterized by that on the butterfly steel plate a locking plate seat hole is set at the place closed to bone screw, locking plate seat is placed in the locking plate seat hole, on the locking plate seat the locking plate assembling recess is set, the locking plate is mounted on the recess, and the upper portion of bone screw can be covered by two wings of the locking plate, and on the locking plate the locking hole and open groove are set.

The invention provides a medical elastic suture line with a needle. The suture comprises a suture needle and a suture line, wherein the tail end of the suture needle and one end of the suture line arebonded together, the transition between the suture line and the tail end of the suture needle smoothly transits, the diameter of the tail end of the suture needle becomes smaller, and the tail end ofthe suture needle is provided with one or more of a convex ring, a groove and a convex block. The suture line comprises the following raw materials in parts by weight: 20.5-35.8 parts of polyglycolicacid, 1.2-3.5 parts of chitosan, 12.5-17.5 parts of polylactic acid, 1.0-2.2 parts of silk fibroin, 7.5-9.7 parts of salmon collagen, 1.7-2.5 parts of cross-linking agents, 1.2-2.5 parts of stabilizing agents and 2.1-3.7 parts of antibacterial agents. The suture line is elastic, maintains the tension after tissue swelling is reduced, and ensures wound healing; one end of the suture line and the tail end of the suture needle are bonded together to enable a needle hole and the suture line to be tightly attached, so that the needle hole is not easy to infect.

The invention discloses a medical suture line for promoting wound healing. The medical suture line is prepared from main raw materials in parts by mass as follows: 8-12 parts of polylactic acid, 7-11 parts of Tinomiscium tonkinense Gagnep. 4-6 parts of Ningpo yam rhizomes, 10-14 parts of radish, 5-7 parts of lotus plumule, 6-9 parts of solomonseal rhizomes, 12-15 parts of eucalyptus leaves, 9-13 parts of Jasminum lanceolarium, 6-10 parts of rhamnus aurea, 5-9 parts of Japanese stephania roots, 0.6-0.8 parts of ciprofloxacin and proper amounts of dicumyl peroxide and citric acid. The medical suture line for promoting the wound healing is prepared from polylactic acid with good biodegradability and a few common Chinese herbal medicines through refining, can effectively prevent wound infection, promotes rapid wound healing, has good biocompatibility and biodegradability, and avoids secondary injury caused by suture line removing.

The high-purity magnesium strip line anchor comprises an anchor body, a through hole penetrating through the anchor body in the width direction is formed in the anchor body, a mounting hole is formed in the center of the rear end of the anchor body, threading holes are formed in the bottom of the mounting hole, the threading holes comprise the left threading hole and the right threading hole, and the mounting hole is communicated with the through hole through the left threading hole and the right threading hole. According to the present invention, the material has advantages of good biocompatibility, good mechanical property, good biodegradability, high mechanical strength while tendon-bone healing is ensured, surgeon operation is simple, tendon, ligament and bone surface can be firmly combined, and the degradation mechanism is harmless to the human body compared to the high polymer material.

The invention belongs to the technical field of medical instruments and particularly relates to a finger metacarpal bone external fixation stent. The finger metacarpal bone external fixation stent comprises a connecting rod. The connecting rod is provided with a left needle rod clamp and a right needle rod clamp which can linearly slide within the preset travel range of the connecting rod along the connecting rod. The left needle rod clamp and the right needle rod clamp each clamp two needle rods. Locking devices are arranged at the positions, on the same sides of the left needle rod clamp and the right needle rod clamp, of the connecting rod. The finger metacarpal bone external fixation stent is simple and reasonable in structure, the metacarpal bone fracture portion is easily and reasonably fixed through effective operation, coalescence of the fracture portion is guaranteed, the fracture portion rapidly is restored to original functions and appearances, the exercise performance of a fixed portion is improved, operation simplicity and reliability are guaranteed on the premise of guaranteeing the treatment effect, the finger metacarpal bone external fixation stent is mainly used for treating the metacarpal bone fracture, and the correction and treatment effect of the fracture are greatly improved.

The invention belongs to the technical field of fruit tree grafting and discloses a fruit tree three-line healing grafting method which adopts draining water. Cutting ear bud: adopting the method of one bud one joint or two bud one joint to cut the grafting surface under the bud, cutting with one knife, cutting surface is smooth and flat, cutting water surface on the back of the bud, cutting out two cambium lines with wood, cutting surface is smooth and flat; Cutting stock; Grafting. "Y" type water drainage and spring graft are adopted, tree body wound flow is large, if that wound flow cannotbe eliminated in time, cambium is always in a relatively wet environment, and the formation of callus between cambium is hindered, and a saw 2 below the grafting mouth of a large rootstock is used. After cutting the rootstock, the incision was Y-shaped, with a small piece of phloem torn downward in the middle and a small piece of toughness torn downward in the lower end of the rootstock. The effect of water release was very good.

The invention belongs to the field of forging, and specifically relates to a forging method for healing internal hole-type defects of a large-height-diameter ratio billet with a small reduction rate and high efficiency. The present invention uses numerical simulation technology to study the distribution of the internal strain of the billet in the traditional free forging process, and proposes a wide-anvil radial compaction process: 1) Use flat plates as the upper and lower anvils, and use the wide-anvil radial compaction process to compact the billet Bottom; 2) After the wide anvil is radially compacted, the billet is returned to the furnace to be reheated and kept warm; 3) The billet is turned over 90°, and the upper and lower flat anvils are used for elongation. The invention is applicable to the free forging process of various high-height-diameter-ratio billets (such as continuous casting billets) or high-height-diameter-ratio steel ingots, etc., and has a good effect especially on high-height-diameter ratio billets with severe central looseness. The forgings produced by the invention can ensure the healing of hole-type defects inside the billet with large height-to-diameter ratio, greatly reduce the possibility of scrapping the forgings because the center is loose and not forged, and can manufacture larger-sized forgings due to the lower reduction rate.

The invention relates to the field of medical instruments, in particular to surgical scissors. The surgical scissors comprise surgical scissors bodies and barbs, wherein the barbs are arranged on the surfaces of cutting edges of the surgical scissors bodies. By the aid of the barbs in a row added at the cutting edges of the scissors, operation of medical staff is facilitated effectively, medical accident coefficient is also decreased, and the surgical scissors provide a guarantee for healing of post-surgery patients and facilitate surgeons in surgery.

The invention discloses a device for promoting postoperative leakage healing. The device comprises a leakage pipette with the closed lower end, the upper end of the leakage pipette is communicated with an imbibition balloon through a bending part, and a drain pipe with a seal end cover is arranged on the imbibition balloon; multiple imbibition sieve pores are uniformly formed in the lower portion of the side wall of the leakage pipette, and the leakage pipette is internally provided with a water filling pipe; the upper end of the water filling pipe extends to penetrate out of the side wall, above the imbibition sieve pores, of the leakage pipette and is provided with a seal cover, and the lower end of the water filling pipe extends to penetrate out of the closed end of the leakage pipette in a sealed mode and is communicated with an implanted balloon arranged on the outer wall of the closed end of the leakage pipette in an attached mode; scale identification is arranged on the side wall of the leakage pipette in the length direction, and the inner wall and the outer wall of the leakage pipette and the outer wall of the implanted balloon are coated with a antibiotic coating. The device has the advantages of being simple in structure, easy and convenient to operate, economical, safe and high in practicability.

The invention discloses a protection device for treating a body surface wound. The protection device comprises a silica gel fixing seat and a protective cover, wherein the protective cover is buckledon the silica gel fixing seat, the upper side and the lower side of the silica gel fixing seat are respectively provided with a binding type fixing mechanism, a contact type liquid guide mechanism isarranged in the protective cover, the contact type liquid guide mechanism is connected with the inner side wall face of the silica gel fixing seat, and an air inlet and guide mechanism is arranged onthe protective cover. According to the invention, the protective cover is buckled at the wound position of the lower limb of a patient through the binding type fixing mechanism, and the contact type liquid guide mechanism is arranged in the protective cover, so that the centralized collection of blood and secretions generated at the wound site is facilitated; and air circulation in the protectivecover is guaranteed through cooperation with the air inlet and guide mechanism on the protective cover, so that the cleanness degree of the environment near the wound is improved, the wound healing speed is increased, the structure is simple, and the reliability is high.

A knee-joint activity and inertia-combined adjusting control outer fixer comprises an upper C-shaped hole ring arranged at a thighbone far end, and a lower C-shaped hole ring arranged at a tibia near end; the upper C-shaped hole ring is upwards connected with two upper tubular connection rods by a T-shaped connection plate; two dual-groove steel needle fixing clamps are fixed on the two upper tubular connection rods; point ends of two thread semi-needles are fixed on a femoral shaft; an arc arch is connected between the upper C-shaped hole ring and the upper tubular connection rods; the tail ends of the thread semi-needles are fixed with a single-groove steel needle fixing clamp on the arc arch; the point ends of the thread semi-needles are fixed on the femoral shaft. The upper C-shaped hole ring and the lower C-shaped hole ring are connected by a knee elbow joint device. The knee-joint activity and inertia-combined adjusting control outer fixer is firm in static fixing and balanced in dynamic fixing, can adjust and control the kneel joint gap, can promote the fracture healing and reduce or avoid the stiffness of the knee joint and is an advanced and excellent treatment method for the knee joint fracture, particularly the severe comminuted fracture.

The invention relates to the technical field of medical instruments, and discloses a non-magnetic hemostatic clip used in cooperation with an endoscope, the non-magnetic hemostatic clip comprises a clamping part and a release part, the clamping part comprises two clamping pieces and a clamp tube, the two clamping pieces are arranged in the clamp tube, the release part comprises a handle, a sliding handle is arranged on the handle in a sliding mode, a mandrel is fixedly connected to the sliding handle, and the mandrel is fixedly connected with the handle. The end, away from the sliding handle, of the mandrel is fixedly connected with a connecting piece, the mandrel is sleeved with a spring hose, one end of the spring hose is fixedly connected with the handle, the other end of the spring hose is fixedly connected with a rotating piece, and the end, away from the spring hose, of the rotating piece is detachably connected with the clamp tube. One end, far away from the mandrel, of the connecting piece is detachably connected with the two clamping pieces; the clamping piece and the clamp tube are made of non-magnetic materials or non-magnetic absorbable materials. The device can be repeatedly opened and closed, is simple and reliable in structure, is convenient to release, is moderate in clamping force, is non-magnetic in a remaining body, and does not need to worry about the influence of magnetic resonance and the alarm trouble of a security check instrument.

The invention discloses a complex compound of cross-linked polyvinylpyrrolidone and iodine and its preparation method and application. The raw materials of the complex compound of cross-linked polyvinylpyrrolidone and iodine include the following components in mass percentage: cross-linked polyvinylpyrrolidone : 53~96.5%; refined iodine: 1.2~20%; alginate: 2.2~22%; catalyst: 0.1~5%; described catalyst is selected from sodium bicarbonate, ammonium bicarbonate, sodium carbonate decahydrate, decahydrate At least one of sodium sulfate hydrate crystals, sodium dihydrogen phosphate dodecahydrate, ammonium oxalate monohydrate, citric acid monohydrate and salicylic acid; after the raw materials are mixed evenly, under stirring conditions, at a temperature of 80-120°C , Airtight reaction 4 ~ 24h. The complex compound of cross-linked polyvinylpyrrolidone and iodine of the present invention has controllable release of free iodine at the action site, and is always maintained between the antibacterial activity threshold and cytotoxicity threshold, and can exert a good bactericidal effect and is far lower than Permissible level of cytotoxicity for normal histiocytes, non-irritating and does not delay wound healing.