121results about How to "Reduce surgical complications" patented technology

The skull patch making process includes the following steps: computerized tomographic imaging to acquire the information of the skull defect part of the patient and the peripheral soft tissue, image designing to reconstruct the 3D head prototype of the patient, designing the dummy for the defect part, leading the designed dummy camber into fast laser forming machine for making patch mold, and final jointing, comparing and cutting titanium web plate to form the ultimate skull patch. The present invention has high precision, low cost, short making period and excellent post-operational restoring.

The invention discloses a device for conveying a bracket in an operation, which comprises a coating film, a suture and a pulling line, wherein the suture is sewed on the coating film through the pulling line, the suture and the pulling line are used to sew two sides of the coating film, so that the bracket in the operation is closed and coated in the coating film, connection which can be disconnected when the pulling line is pulled out is formed between the suture and the coating film. An aorta is cut open on the end part of a vascular lesion position; the bracket in the operation, which is mounted on the conveying device, is conveniently and fast implanted into the corresponding lesion position including lesion positions of branch vessels; and thereby the corresponding suture can be released only by pulling out the pulling line; and then the bracket with branches in the operation is released and located in a blood vessel with branches, such as the aortic arch; and a cut is sutured after the conveying device is withdrawn. By using the invention, number of anastomotie stomas in the operation is reduced, the operation process is simplified, the operation time is shortened, the complications of the operation are reduced, the survival rate of the patient is improved, the treatment effect is increased, and wounds to patients with aortic arch parts and other diseases are more effectively reduced.

The invention relates to injectable efficient suspended stable calcium phosphate cement and a preparation method and application thereof. The invention discloses the injectable efficient suspended stable calcium phosphate cement and the preparation method and the application thereof. When fumed silica and a modified product thereof are applied in the injectable calcium phosphate cement, the suspension stability of the original calcium phosphate cement is remarkably improved, the curing property of the calcium phosphate cement is kept on the basis that the operation is simple and convenient, and meanwhile the requirements of the injectable property and the compressive strength of the calcium phosphate cement are not reduced. The calcium phosphate cement has the advantages of low raw material cost, simple preparation, convenience for operation and the like, has good suspension stability, can be stored for a long term under certain conditions, and is expected to be used as a high-performance novel tissue repair material which realizes large-scale industrialized production and is applied to clinic.

A medicine coated scaffold for preventing and treating the renarrowing of arteria coronaria after plastic operation features that the tatin kind of medicines which can suppress the growth of new tunia intime and the reproduction of smooth muscle cells is contained in the coated layer of scaffold and can be slowly released to prevent said renarrowing of arteria coronaria. Its advantages are high effect and low cost.

A method and system provide a surgical infusion device including a cannula and an optical fiber coupled with the cannula. The cannula has a channel therethrough and an outside diameter. The channel has an inside diameter that is smaller than the outside diameter. The optical fiber is coupled with the cannula. At least a portion of the optical fiber coupled with the cannula has a diameter of not more than one half the inside diameter.

The invention provides a biodegradable textile fiber adhesive-bonded fabric to prevent adhesion after the operation and its preparing method, which belongs to the domain of medical article, and relates to the preparation of a nanometre-sized fiber adhesive-bonded fabric and the application as the anti-block film after the operation. The said adhesive-bonded fabric is prepared by adopting electrostatic spinning method, which includes preparing spin dope, dissolving the aliphatic polyester in the flux and mixing intimately to prepare the aliphatic polyester spin dope. The used flux of the spin dope can be one or compound system of two of carrene, chloroform, acetone, acetylene tetrachloride,acetic acid dimethylamide. Secondarily on the electrostatic spinning machine, by filling spin dope, electrostatic spinning and collecting superfine fibre, the aliphatic polyester superfine fibre is prepared, which carries out the adhesive-bonded fabric of electronic spinning nanometre-grade fiber and which can be used as blocking agent after the operation by the decontamination and biocidal treatment. The cloth has good flexibility and toughness, which can overcome the defect of anti-block film reported in the past. Because the degradable materials are selected, the adhesive-bonded fabric begins to degrade after about one month and completely degrade finally, which comes up to the anti-block function.

The invention provides a conveying device for an implant; the implant can be recycled after complete release and released for multiple times, and the recycling operation is simple and convenient. Theconveying device comprises a conveying pipe, a conveying rod and a release part; the conveying rod is inserted into the conveying pipe; the release part has elastic or shape memory performance and isused for being placed in the conveying pipe, the first end of the release part is connected with the conveying rod, and the second end is used for penetrating at least one through hole at the proximalend of the implant. After passing through at least one through hole, the release part bends under the restriction of the conveying pipe and springs back after the restriction of the conveying pipe iseliminated, so that the second end of the release part can dissociate from at least one through hole.

The invention provides a set of instruments for anterior thoracic and lumbar vertebra surgery, comprising a long-handle drag hook I, a long-handle periosteum detacher II, a long-handle osteotome III, a long-handle curet IV and a long-handle endplate curet V; the long-handle drag hook I comprises a drag hook point 1, a head section 2, a body section 3, a back end circular hole 4; the long-handle periosteum detacher II comprises an obtuse head section 5, a body section 6 and a handle 7; the long-handle osteotome comprises a flat osteotome head 8, a body section 9 and a back end 10; the long-handle curet IV comprises an obtuse curet head 11 with hook, a body 12 and a conical handle 13; the long-handle endplate curet V comprises a hollow curet head 14 with elliptic structure, a body section 15 and a handle 16. The invention has advantages of reasonable design, easy manufacture process, and low cost. By using the instruments of the invention, smaller surgical incision, improved surgery range of vision, optimized operative procedure, reduced surgery difficulty, reduced hemorrhage in surgery and shortened surgery time can be obtained.

The invention relates to a multifunctional scalpel, which belongs to the field of medical equipment, and includes a scalpel handle, which is provided with an anti-skid layer, and the scalpel handle is connected to a surgical blade through a mounting hole, and one side of the scalpel handle is A cone-shaped lampshade is provided, and an LED light is arranged inside the cone-shaped lampshade. A power supply and a sliding bar are provided in the inner cavity of the scalpel handle, and sliding teeth are provided on the sliding bar, and the sliding teeth are connected to pulleys. Gears are provided on the pulley, and a blood-sucking port is provided at the bottom of the scalpel handle, and the blood-sucking port is connected to a blood-sucking vessel. There is also an LED light switch and an electric motor switch on the handle of the scalpel. The structure of the invention is simple. By setting the slide bar, the blade can be stretched arbitrarily, and a suction blood vessel is set, so that the bleeding of the wound can be sucked in time during the operation. , to prevent interference with the doctor's field of vision, reduce surgical complications, and also set up LED lights to reduce blind spots during surgery.

The invention discloses an operating knife for glaucoma operation and a positioning scale thereof. The operating knife comprises a microscopic operating knife and the positioning scale which is used for forming a U-shaped cutting opening by matching with the microscopic operating knife, wherein the positioning scale is provided with a through-groove; the microscopic operating knife has a flexible structure; the microscopic operating knife further comprises a blade, a knife body and a knife sleeve; and the blade is fixedly connected with the knife body (1 II), and the knife body can retract in the knife sleeve and can reciprocate along the knife sleeve. The glaucoma operating knife component disclosed by the invention can be widely applied to the operation of scleral flaps in the glaucoma trabeculectomy operation, and can ensure the size accuracy of the cutting opening, establish a good basis for the next step of the operation, ensure the operation quality, and reduce the operation risks.

The invention relates to an adjustable single-branch man-made aortic arch implant which comprises an aortic arch main stent that is formed by serially connecting nickel-titanium alloy wire materials with a Z-shaped ripple shape; a hollow stent made of a nickel-titanium alloy tube forms a branch blood vessel stent on the aortic arch which is coated by medical tectorial membrane materials; the ripple density of the remote end of the main stent is increased for strengthening the radial support force of the stent, and the Z-shaped ripple at the close end of the main stent is connected with the traditional decron-made artificial blood vessel. The implant of the invention can be squeezed to deform at will in the low temperature, and the host blood vessel can be implanted easily as the caliber can be adjusted at will. In the clinic, not only the aortic arch surgical operation can be simplified, but also the operation time and the surgery complication are reduced, thereby pains of a patient suffered from the aortic arch disease can be lightened more effectively, and the structure is simple as well as the operation is convenient.

The invention relates to the field of medical instruments, in particular to a sacroiliac joint through-screw positioning coaxial guide and an assembly thereof. The sacroiliac joint through-screw positioning coaxial guide comprises a first positioning rod for fixing a first puncture sleeve, a second positioning rod for fixing a second puncture sleeve, an adjusting device for adjusting a relative distance between the first positioning rod and the second positioning rod, and a fixing device for fixing the positions of the first positioning rod and the second positioning rod. The first positioningrod and the second positioning rod are respectively connected with the adjusting device, and the first positioning rod and the second positioning rod are axially symmetric by taking a vertical centerline of the adjusting device as an axis of symmetry, such that a horizontal centerline of the first puncture sleeve and a horizontal centerline of the second puncture sleeve are in the same line. Thefixing device is connected with the adjusting device. A sacroiliac joint screw can penetrate through a sacroiliac joint and can be accurately placed into the patient body, so that the surgical positioning is accurate, the stability is high, the safety is high, and complications such as vascular nerve injury are avoided.

The invention relates to the field of medical appliances, and discloses a femoral nail embedding reductor. According to the femoral nail embedding reductor, an intramedullary guidance device is arranged at a fracture near end; a lifting rod is arranged at a fracture remote end; intramedullary guidance is performed at the fracture near end; lifting reduction is performed through two lifting pins in sagittal view and coronal view at the fracture remote end; fracture three-dimensional reduction is performed through femora intramedullary guidance; the fracture near and remote ends can be accurately repositioned and temporarily fixed through simple fluoroscopy; and the femoral nail embedding reductor is convenient for intramedullary guide pins to be embedded and has high safety and accuracy. The femoral nail embedding reductor can be matched with the existing intramedullary nails for clinical use, and is simple to operate. Scales are formed on the lifting rod, the required lifting distance can be more accurately fixed during operation, and the femoral nail embedding reductor is accurate for reduction. The femoral nail embedding reductor breaks the traditional occlusion manual reduction, reduces the damage to the biological environment at the fracture ends, greatly enhances the operation safety, reduces operation complications, and can obviously reduce X-ray fluoroscopy amount and protect doctors and patients.

The invention relates to an artificial prosthesis of a long bone diaphysis tenon and mortise structure. A protruding face I and a rectangular protrusion I of a prosthesis proximal handle connecting part I are inserted into a strip-shaped groove II and a rectangular notch II of a prosthesis far-end handle connecting part II respectively, a protruding face II and a rectangular protrusion II of the prosthesis far-end handle connecting part are inserted into a strip-shaped groove I and a rectangular notch I of the prosthesis proximal handle connecting part I respectively, after a semicircular groove I of the prosthesis proximal handle connecting part I is in butt joint with a semicircular groove II of the prosthesis far-end handle connecting part II, a cylindrical counter bore is formed, tenon is inserted into the cylindrical counter bore formed in one end of the cylinder, and the tenon locks the connecting part I and the connecting part II together. Prosthesis fixation is firm and reliable, the operation is simple and convenient, the operation time is shortened, the operation effect and efficiency are improved, and operative complications are reduced. The artificial prosthesis can be widely applied to different defects of long bone diaphysis, the minimum osteotomy amount can reach 3.0 cm, and the maximum opportunity is provided for reserving normal bone tissue and joints as much as possible.

The invention provides a biodegradable rapamycin-prednisone composite medicinal coat metal stent, which comprises a metal stent, and active ingredients and a slow-release carrier wrapping the surface of the metal stent, wherein the active ingredients comprise rapamycin and prednisone, and the slow-release carrier is an in vivo degradable aliphatic polymer. The coat metal stent keeps the advantage of restenosis prevention of a medicinal coat metal stent, and solves the problem of late stent thrombosis along with full release of a slow-release coat; and the prednisone in the coat has the effect of inhibiting local inflammatory response caused by the carrier and the medicament. The coat metal stent of the invention is mainly used for interventional therapy of coronary heart disease, prevention of restenosis and reduction of late thrombosis formation after the stent is implanted.

The invention belongs to the technical field of medical apparatuses and instruments and relates to a laparoscopic puncture stapler. The laparoscopic puncture stapler comprises a puncture awl component and a puncture sleeve component. The puncture sleeve component comprises a sleeve, a sleeve inner shell and a sleeve outer shell, the sleeve consists of a sleeve barrel and an outer tube, and two sides of the lower inner wall of the outer tube are provided with staples. Two sides of the sleeve inner shell are provided with clamping columns, and the sleeve inner shell and the sleeve outer shell are in butt joint to hold the sleeve and realize clamping connection through the clamping columns. The clamping columns on two sides are provided with coil springs, rotating wheels are arranged on the outer peripheries of the coil springs and wound by suture threads, and free ends of the suture threads are connected with the staples. The puncture awl component comprises a staple pushing mechanism and a staple pushing handle. Under the pressing action of the staple pushing handle, the staples penetrate human fascia tissues by the aid of the staple pushing structure. The laparoscopic puncture stapler has advantages that abdominal puncture under a laparoscope can be realized to create a passage for minimally invasive instruments to enter a body in laparoscopic surgery, and abdominal fascia suture can be quickly realized after the surgery.

The invention relates to an aspiration device, in particular to a thrombus aspiration device, and belongs to the technical field of medical instrument structures. The thrombus aspiration device comprises a metal sheath, a rotary cutter and an expander. The metal sheath comprises a metal spiral pipe, a side pipe is arranged at one end of the metal spiral pipe, and one end of the side pipe is movably connected with a first backflow preventing cap. The rotary cutter comprises a crank, a spiral flow guide groove is formed in the end, away from the handle, of the rotary cutter, a second backflow preventing cap is arranged at the end, close to the handle, of the rotary cutter, and a blade is arranged between the second backflow preventing cap and the spiral flow guide groove. The thrombus aspiration device can replace an original long metal sheath, the expander is withdrawn, the rotary cutter is fed in, the thrombus aspiration device is formed, the side pipe generates negative pressure through pumpback of an injector, thrombus is made to enter the metal sheath, the rotary cutter is rotated, the thrombus is conveyed to move into a lumen under the combined action of the rear driving force of the flow guide groove and the negative pressure, the middle blade cuts the thrombus into small blocks, the thrombus is sucked out of the side pipe, the situation that large thrombus blocks block the pipe cavity, and consequently the aspiration process is interrupted is avoided, operation efficiency is improved, and operative complications are reduced.

The invention provides an extractor of orthopedic slipped screws, relating to an orthopedic surgical instrument and mainly comprising a screwdriver body and a main rod sleeve. The extractor of orthopedic slipped screws is characterized in that the lower end of the screwdriver body is arranged in the main rod sleeve, and the upper end of the screwdriver body is a conical hollow cutter head provided with a longitudinal notch; and a propelling ring provided with a conical head rod is installed outside the main rod sleeve, and the upper end of the conical head rod is designed into a conical shape corresponding to the hollow cutter head and extends into the hollow cutter head so that the cutter head is expanded. The invention can be used for extracting screws which have larger resistance and can not be screwed by the traditional screwdriver, especially slipped screws.

The invention discloses a bladder calculus smashing and calculus removing sheath which at least comprises a sheath catheter, a sheath core and a sealing cap. The sheath catheter is made of transparent materials, and the outer wall of the sheath catheter is provided with an indication mark. The sheath catheter is composed of an outer sheath and an inner sheath, wherein the inner sheath is arranged in the outer sheath, the outer diameter of the inner sheath is smaller than the inner diameter of the outer sheath, and a gap is formed between the outer sheath and the inner sheath; the sheath core is arranged in the outer sheath in the operation process of catheter placement, the inside of the sheath core is provided with a hollow channel, and the sealing cap is arranged at the tail end of the outer sheath in a sleeved mode. The bladder calculus smashing and calculus removing sheath has the advantages of being simple in structure, low in cost, convenient to observe and operate in operation, capable of effectively improving operation efficiency and safety and reducing operative complications and the like.

The invention relates to a transplant cold protection bag which is formed by three layers of plastic composite films. A transplanted organ placement bag, a refrigerating bag and a heat insulation bag which are formed by middle films, are mutually closed and are provided with inner films are arranged in a wear-resistant plastic bag of an outer film; the transplant cold protection bag can be used for storing organ preservation solution, transplanted organs, a cool storage material and a heat insulation material which have temperatures of 0 to 4 DEG C; one end of the transplanted organ placement bag, together with the wear-resistant plastic bag, is provided with a transplanted organ taking and storing port formed by two magnets and a sealing material together; and the other end of the transplanted organ placement bag, together with the wear-resistant plastic bag, is provided with a liquid replacement tube with a blockage cap. The transplant cold protection bag disclosed by the invention ensures a low temperature of 0 to 4 DEG C, which is required by transplants in an operation and enables the transplants to have no warm ischemia time; the body temperature of a receptor is prevented from being reduced due to conduction of brine ice gauze and complications are reduced; and the transplants are convenient to move and a touch technology is not adopted. The transplant cold protection bag greatly improves the survival rate of postoperative organs and has important clinical significance and application prospect for storage of the transplants in the organ transplantation and vascular reconstruction process.

The invention discloses a TFCT-type craniocerebral positioning puncture auxiliary device and a use method thereof. The device includes a U-shaped main frame part and a plurality of puncture units attached to the U-shaped main frame part. The U-shaped main frame part is composed of two U-shaped bow stands having scales and connected in parallel. Each U-shaped bow stand includes a cross beam and twovertical legs, several puncture units that can be locked on the cross beams are slidably arranged on cross beams, each the vertical leg is slidably provided with two puncture units which can locked on the vertical leg, and each puncture unit includes a puncture hole, a hollow puncture guide tube and a fixing needle. The device can accurately locate the position through combination with the CT examination technology, the operation errors of operation operators are effectively reduced, the craniocerebral puncture operation is thus performed smoothly, the operation complications are reduced, andthe rehabilitation of patients is facilitated.

The invention relates to the technical field of cardiac electrophysiology ablation catheters, and discloses an intracardiac ultrasound catheter with ablation and mapping functions, which comprises an ultrasound catheter assembly, the ultrasound catheter assembly comprises an ultrasound catheter, an adjuster is mounted at the middle end of the ultrasound catheter, one end of the adjuster is fixedly connected with a control handle, and the other end of the adjuster is fixedly connected with a probe. An adjusting knob is arranged on the outer side wall of the control handle, and a conversion connector is installed at the tail end of the control handle. According to the catheter for the electrophysiological surgery, only one blood vessel can be punctured, in addition, the ultrasonic catheter and the ablation catheter are arranged together, the necrosis and edema conditions of cells after ablation in the surgery can be monitored in real time, the ablation catheter can more accurately ablate abnormal parts, and the catheter for the electrophysiological surgery integrates the functions of intracardiac ultrasound, three-dimensional reconstruction and ablation, so that the ablation surgery is more convenient and faster; and in addition, the ablation curative effect is quantitatively evaluated in real time during the operation, so that the ablation treatment is more accurate, and the postoperative recurrence rate can be reduced.

The invention relates to a double-balloon conveying device for a vascular stent in the technical field of medical vascular interventional treatment. The double-balloon conveying device is suitable for patients needing clinical vascular stent treatment, and is composed of the vascular stent, a stent carrying balloon, a post-dilatation balloon, a balloon conveying rod, marking rings and compression and decompression openings. The vascular stent is conveyed, released and post-dilatated through the double-balloon conveying device, better adherence is achieved after the stent is released in a vascular disease part with a uniform diameter or a certain fall, operation efficiency is improved, operation complications are reduced, operation time is shortened, and operation expense is reduced.

The embodiment of the present invention discloses a temperature-controlled radio-frequency thermocoagulation treatment guide plate for trigeminal neuralgia. On the ear; the nose part is arranged in an arc shape, and corresponds to the shape of the human nose, so as to lean against the nose; the connecting part is connected to the ear hanging part at one end, and the nose part is connected to the other end, and the connecting part is provided with The puncture hole is convenient for surgical puncture positioning. Implementing the embodiment of the present invention has the following beneficial effects: the temperature-controlled radiofrequency thermal coagulation treatment guide plate for trigeminal neuralgia of the present invention can be attached to the patient's face, assisting the doctor to locate the affected area, so that the operation can be in place at one time, and there is no need to rely on it after anesthesia The patient's response can be treated directly, which reduces the pain of the patient, reduces surgical complications, and shortens the operation time.

The invention provides a piezoelectric inertia driven two-degree-of-freedom coupling retinal detachment feeding mechanism, and relates to a retinal detachment feeding mechanism. The problems that in an existing process of manually detaching the retina with tweezers, due to the fact that the hands of people are prone to shaking during manual operation, the operation success rate is low, and other symptoms are prone to being caused are solved. A moving shaft is coaxial and connected with the root of the tweezers of a retina clamping module, a base is installed under the moving shaft, a two-degree-of-freedom coupling piezoelectric inertia motor is installed on the base, and the two-degree-of-freedom coupling piezoelectric inertia motor drives the moving shaft to linearly feed and rotate around the axis. The purpose of controlling the tweezers to be opened and closed is achieved by controlling an outer pipe to move front and back in the axial direction through a stepping motor, and when the outer pipe moves forwards, the outer pipe extrudes the tweezers to close the tweezers. When the outer pipe moves backwards, the tweezers are released and automatically opened. The mechanism is usedfor retinal detachment feeding of an ophthalmic surgery robot.

The invention discloses a medical cold compress gel eye pad and a preparation method thereof, the eye pad sequentially comprises a non-woven fabric layer, a gel layer and a polypropylene film from bottom to top, and gel in the gel layer is prepared from polyvinyl alcohol, glycerin, a thickening agent, sodium hyaluronate, sodium alginate and water. The eye pad is used for being pasted outside eyes of a general anesthesia operation patient or a deep coma patient, provides a relatively closed humid environment for the patient, protects the eyes from external stimulation and is easy to uncover and paste. The preparation method provided by the invention can shorten the production time and improve the production efficiency.

The invention discloses a tool for maintaining a needling point of a sacroiliac screw guide needle and regulating direction. The tool comprises a grinding drill, a sleeve, a sleeve fixer and a diamond point bit, wherein a working surface of a drill bit at the lower end of a grinding drill rod is an arc surface; the diamond point bit is inserted into a guide needle passage in the center of the grinding drill; a fixing wing clamp arranged on the drill rod of the grinding drill is locked into a locking slot in the drill rod of the grinding drill; the drill tip extends out of the drill bit of the grinding drill; the sleeve consists of two semicircular cylinders; the upper end of the sleeve is connected to the lower end of the sleeve fixer by screw threads; the center of the sleeve fixer is provided with a pipe cavity through which the drill rod of the grinding drill can pass; a fixing bolt is arranged on the wall of the pipe cavity and is used for fixing the sleeve on the drill rod of the grinding drill. The tool disclosed by the invention integrates the functions of maintaining the needling point of the screw guide needle and regulating the direction of the guide needle; a power drill is used for driving the grinding drill and the diamond point bit to rotate; an arc-surface opening is drilled in an iliac bone outer plate, and then the sleeve fixer, the sleeve and the diamond point bit are taken down; the directions of the drill rod of the grinding drill and the guide needle passage are regulated by motion of the drill bit of the grinding drill in the arc-surface opening.

The invention relates to medical instruments and discloses an upper urinary tract complex lesion percutaneous flexible ureteroscope operation to solve the problems that a flexible tube of an existing ureter device is prone to being left in a lower section of a ureter, a pump line is prone to disengaging, and consequently, body irrigation fluid leaks. According to the upper urinary tract complex lesion percutaneous flexible ureteroscope operation, a percutaneous puncturing and expanding device, a ureteroscope, a cold light source, a camera system, a bedside B ultrasonic machine, an intracavity calculus removing instrument, a high-pressure sacculus expander, a pressure adjusting water-delivery pump and a holmium laser ureteroscope are adopted. The ureteroscope comprises a sheathing canal, a flexible tube located in the sheathing canal, a push tube used for connecting the sheathing canal with the flexible tube, a handheld part located at the tail end of the sheathing canal and a washing valve. By means of the rotationally-combined sheathing canal and flexible tube, the ureteroscope is more suitable for being applied to complex kidney stone operations.