46results about How to "Improve the curative effect of surgery" patented technology

The invention relates to the field of medical science, and particularly relates to an anterior cruciate ligament stopping location and ligament tunnel location device combining with preoperative 3D planning information. The device comprises hardware such as a C-type arm X-ray machine, a gama correction calibration board, an image capturing card, a positioning robot, a path positioning rack, a position trailing platform, and a computer as well as software such as a 3D planning module and a 2D positioning and navigation module which are stored in the computer. The 3D planning module makes use of preoperative 3D image data of knee joints of a patient, assists a doctor in finishing personalized surgical planning, and projecting a 3D environmental message to a 2D navigation message along a specific projection direction. The 2D positioning and navigation module makes use of a 2D medical image in surgical space collected by the hardware as well as location information of various trailing objects and combines the 2D navigation message to construct a navigation environment to control the hardware such as the positioning robot and the path positioning rack to finish an accurate operation path positioning. The anterior cruciate ligament stopping location and ligament tunnel location device can assist the doctor in finishing the precise and personalized operation of anterior cruciate ligament stopping location and ligament tunnel location, thus lowering operative difficulties and enhancing operative treatment efficacy.

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 discloses a renal artery blood-supply area segmenting method based on a CT contrastographic picture. The method comprises the steps that firstly, the kidneys, kidney neoplasms and the renal arteries in the CT contrastographic picture are segmented, then segmented kidney tissue areas are calculated to obtain Euclidean distances of different renal artery branches, and a blood-supply area of each renal artery secondary blood vessel tree is determined according to the minimum Euclidean distance. The method not only can be used for accurately estimating kidney neoplasm blood supply branches, but also can simulate the kidney blood-supply areas possibly affected when any position of the renal artery branches is blocked. As the renal artery anatomical structures of different patients have large differences, according to the method, the blood-supply areas of the renal artery branches can be accurately determined through the CT contrastographic picture of the kidneys, the more visual and reliable basis is provided for a pre-operation project of a partial kidney resection operation, and the treatment effect and the success rate are improved.

The invention provides an adjustable interbody fixation and fusion device and relates to a spinal interbody fusion surgery instrument. The adjustable interbody fixation and fusion device is provided with an upper support platform, a lower support platform, a left sliding support block, a right sliding support block, a rotating shaft, a main rotating gear, an auxiliary rotating gear and a handle, wherein the left sliding support block and the right sliding support block are arranged on the left side and the right side of the upper support platform and the lower support platform respectively; the rotating shaft is arranged between the upper support platform and the lower support platform; the left end and the right end of the rotating shaft are connected with the left sliding support block and the right sliding support block respectively; the main rotating gear is connected with the right end of the rotating shaft; the auxiliary rotating gear is meshed with the main rotating gear; the handle is connected with the main rotating gear. With the adoption of the adjustable interbody fixation and fusion device, surgical operation can be simplified, surgical time can be shortened, the surgical treatment effect can be improved, and the medical expenses of a patient can be reduced; the height of the device can be adjusted according to the interbody space height, the fusion range of a kidney-shaped fusion surface is wider, the fusion effect of a bone trabecula structure is better, the surgical operation is more simplified, and the long-term effect of fixation and fusion is better.

The invention relates to a low-profile easily-locked universal pedicle screw for fixation and correction use in posterior spinal instrumentation and belongs to the field of medical instruments. The low-profile easily-locked universal pedicle screw is composed of a screw body and a cap which are split; the top of the screw body is provided with a spherical head and is inserted into the cap; the side of the cap at the spherical head is provided with a U-shaped groove for mounting a connection rod and a lock screw for fixing the connection rod; a side fixing presser is arranged between the connection rod and the spherical head and is fixed to the cap through a clamp spring. The low-profile easily-locked universal pedicle screw has good locking convenience, great activity and good anti-pull strength, enables screw fixation to be less difficult and fixation effect to be enhanced, can prevent screw loosening, and has simplified operating steps, shorter operating time and improved fixing effect, with fewer complications occurred.

The invention aims to provide electrostatic spinning fiber periodontal tissue regeneration material capable of carrying medicine. The electrostatic spinning fiber periodontal tissue regeneration material capable of carrying medicine comprises, by weight percentage, 50-99% of polylactic acid and 1-50% of calcium alginate, wherein the polylactic acid serves as main support material, the calcium alginate serves as adjusting material for adjusting material degradation rate and improving polylactic acid degradation rate, the weight-average molecular weight of the polylactic acid is 1*10<4>-9*10<7>g / mol, and the molecular weight of the calcium alginate is 1*10<4>-9*10<6>g / mol. The electrostatic spinning fiber periodontal tissue regeneration material capable of carrying medicine has the advantages that the electrostatic spinning fiber periodontal tissue regeneration material is novel medical periodontal tissue regeneration material capable of carrying medicine, the structure features of the electrostatic spinning fiber periodontal tissue regeneration material are similar to those of pericementum fibers, material components are beneficial for bone tissue forming, and the electrostatic spinning fiber periodontal tissue regeneration material can be used to promote tissue regeneration after periodontal surgery and increase surgery curative effect.

The invention relates to a proximal end of femur kirschner wire fixing device. The device comprises a connecting plate piece, wherein one end of the connecting plate piece is provided with a corresponding longitudinal locating hole, the longitudinal locating hole is detachably provided with a corresponding longitudinal sleeve, the other end of the connecting plate piece is provided with two transversal locating tubes, and each transversal locating tube is movably penetratedly provided with a transversal sleeve. The proximal end of femur kirschner wire fixing device has the advantages that thestructure is simple, the operation is convenient, the kirschner wire location is suitable, the kirschner wire is driven into two fracture broken ends, not only can effective fixed action be temporarily achieved, but also the implantation of an intramedullary nail (or a steel plate) is not influenced, minimally invasive can be achieved, and the treatment therapeutic effect of femoral intertrochanteric fracture or fracture of neck of femur is effectively improved.

The invention discloses a neurointervention clinical head and neck fixing device which comprises a first supporting plate. A fixing plate is arranged on the lower surface of the first supporting plate. Two fixing strips are arranged on the lower surface of the fixing plate and are corresponding front and back. The end, away from the fixing plate, of each fixing strip is provided with a second supporting plate. The fixing strips are fixedly connected with the fixing plate and the second supporting plates through studs respectively. Two baffles are arranged on the upper surfaces of the second supporting plates and are corresponding front and back. The front side surfaces and the rear side surfaces of the baffles are each provided with holes. The upper surfaces of the two baffles are providedwith two first sponge fixing belts which are corresponding left and right. The neurointervention clinical head and neck fixing device is firm in structure, durable in use, easy to operate, convenientto fix, convenient to use, capable of being fixed to a sickbed, capable of fixing both the body and head of a patient, capable of improving the diagnosis accuracy and beneficial for improving the surgical treatment effect and increasing the surgical safety.

The invention discloses an absorbable anti-adhesive membrane for cardiac surgery and a preparation method of the absorbable anti-adhesive membrane. The absorbable anti-adhesive membrane is a membrane prepared by a copolymer of 30wt%-60wt% of polyethylene glycol and 40wt%-70wt% of lactide. The absorbable anti-adhesive membrane is a colorless membrane free of impurity and having good elasticity and flexibility, can provide a temporary physical barrier on a chest wall and the surface of a heart without being protected by a pericardium to prevent adhesion, has the advantages of safety (no found toxicity, irritancy and pyrogen reaction), good biocompatibility, easiness in obtaining of raw materials, and convenience for surgical operation, is absorbable and degradable in vivo, good in adhesivity with a wound surface of an organism and capable of being degraded by the organism, and the degradation product can be absorbed and utilized by the organism without side effect. The absorbable anti-adhesive membrane can be used for anti-adhesion in the cardiac surgery and is convenient, safe and effective.

The invention provides a dislocation detecting system in hip joint replacement. The dislocation detecting system in the hip joint replacement comprises a bulb implant, and a light ray detecting module, a transmitting module, a processing module and a reminding module which are successively connected. The bulb implant comprises a base and a transparent hemispheric cover installed on the base. The light ray detecting module comprises an emitting device and a receiving device. The light ray emitted by the emitting device is pointed to the artificial acetabulum. The receiving device is used for receiving the light ray emitted by the emitting device. The light ray detecting module is used for generating light ray detection information, and sending the light ray detection information to the processing module through the transmitting module. The processing module is used for receiving the light ray detection information, and determining whether the bulb implant is dislocated according to thelight ray detection information; and while the bulb implant is dislocated, sending reminding information to the reminding module, and enabling the reminding module to remind. So the dislocation detecting system in the hip joint replacement is capable of assisting a doctor to discover the dislocation phenomenon in the hip joint replacement timely and intuitively, reducing the surgery difficulty, and improving the surgery success rate and the curative effect.

The invention provides a method for correcting nerve navigation intraoperative functional image shift. The method provides a mathematical model for avoiding nerve navigation intraoperative BOLD functional image shift of low field strength intraoperative magnetic resonance based on a non-rigid registration algorithm and a thin plate spline calculating method by combining low field strength intraoperative MRI technology. Preoperative and intraoperative magnetic resonances of low field strength are used as data fields before and after deformation respectively, a brain deformation tendency is calculated by using the on-rigid registration algorithm and the thin plate spline method, and the brain deformation tendency is applied to a BOLD functional image so as to individually predict the functional image shift condition. The method can avoid brain shift caused by gravity, pressure, and even certain current unknown factors. The method guarantees the predicting precision of the model, saves the operation time, can be popularized and applied in clinics, and improves the accuracy and curative effect of a nerve navigation operation.

The invention provides a laryngeal function repairing implanting system. The laryngeal function repairing implanting system comprises a support board, force-bearing rings and fixing nail sheaths, wherein the support board is provided with fixing holes, an outer side and an inner side; the force-bearing rings are of tubular structures; each fixing nail sheath comprises a near end, a sheath body and a far end; the force-bearing rings are mounted at the outer sides of the sheath bodies of the fixing nail sheaths; the fixing nail sheaths are embedded in the fixing holes of the support board, the near ends of the fixing nail sheaths are arranged at the outer side of the support board, and the far ends of the fixing nail sheaths are arranged at the inner side of the support board. The laryngeal function repairing implanting system can be conveniently fixed to the residual end of the cartilagines larynges at two sides of the thyroid cartilage through fixing nails and a nail gun which are matched with the laryngeal function repairing implanting system, then the laryngeal function repairing is carried out, the surgical operation is simplified, the surgical time is shortened, and the surgical curative effects are improved.

The invention relates to a sleeve-type artificial stapes and a manufacturing technique thereof. The sleeve-type artificial stapes comprises an artificial stapes body which is formed by fixedly connecting a lenticular sleeve head provided with a tip of a long limb of incus and a cylinder which can be inserted in and matched with a pore creating on an identical stapes master. The sleeve head is provided with a semicircular handle groove which is rotatablely matched with the long limb of incus and two ends of a metal wire used for pressing the long limb of incus are connected with the sleeve head. The sleeve-type artificial stapes is made of titanium alloy; the manufacturing process flow thereof is as follows: ingredients blending-injection forming-adhesive desorption (degreasing for short)-sintering. The joint of the artificial stapes provided by the invention can turn along any direction, and the novel sleeve-type artificial stapes is completely in line with the connecting, conducting and moving discipline of the original incus and stapes of the normal human body and has important scientific and technological valve and promising application prospect as well as obvious economic benefits.

The invention discloses an injectable screw fixation system for femoral neck fractures, wherein the injectable screw fixing system comprises a screw, a hollow guide rod and a double-channel high-pressure injection device; the screw comprises a screw body and a screw seat, a central through hole is formed in the screw body, screw body external threads are arranged on the outer wall of the front section or the whole section of the screw body, and a side hole communicated with the central through hole is formed in the side wall of the front section of the screw body; the screw base is integrally connected to the tail end of the screw body, a polygonal hole is formed in the screw base, and screw base external threads are arranged on the periphery of the screw base; a guide rod internal thread is arranged at the front end of the hollow guide rod; a guide rod external thread is arranged at the rear end of the hollow guide rod; the double-channel high-pressure injection device comprises a three-way connector and two high-pressure injectors, the three-way connector is provided with two inlets and an outlet, the two inlets are connected with the two high-pressure injectors respectively, a control valve is arranged on the three-way connector, and the outlet is used for being connected with the rear end of the hollow guide rod. According to the invention, treatment liquid can be effectively injected into a fracture part, clinical technical obstacles are practically solved, and the operation curative effect is improved.

The invention discloses a maxillary sinus punctured jaw bone tractor manufactured through three-dimensional printing. The maxillary sinus punctured jaw bone tractor comprises a tractor movable plate,a jaw bone tractor body and a tractor fixing plate. Through mutual cooperation of the tractor movable plate, the jaw tractor body, the tractor fixing plate, a first positioning groove, a U-shaped connecting base and a second positioning groove, the individualized customized jaw bone tractor is achieved, and the individualized jaw bone tractor capable of meeting the treatment requirement of jaw bone defects of different degrees is designed according to the jaw bone defects of different degrees, and a titanium plate can be better attached to the bone surface of a patient, and temporary bending of a tractor fixing titanium plate during operation is avoided; a three-dimensional printing osteotomy positioning guide plate is combined, so that the jaw bone tractor can be accurately placed at a preoperative planned part, an accurate operation effect is achieved to the maximum extent, the operation time can be saved, the operation curative effect is improved, and the maxillary sinus punctured jaw bone tractor is particularly suitable for complex jaw bone malformation treatment and has remarkable social benefits and economic benefits.

The invention relates to the technical field of medical auxiliary equipment, in particular to a combined operation device for arthroscopic carpal tunnel release, which comprises a lens sleeve assembly and a shearing assembly, the lens sleeve assembly comprises a semi-opening sleeve, an opening included angle adjustable part is arranged at the end part of the semi-opening sleeve, and an observation window is formed in the body of the semi-opening sleeve; the shearing assembly comprises a scissor body, and the outer side face of a front-end blade of the scissor body is detachably connected with an arch-shaped check block. According to the combined operation device for arthroscopic carpal tunnel release, the opening included angle of the half-opening cannula is adjusted through the opening included angle adjustable part, the effect of opening soft tissue is achieved, meanwhile, the condition of the soft tissue can be observed through the observation window, an arch-shaped check block is arranged on the shearing assembly, and the cutting assembly is convenient to use. It is ensured that the scissor tip does not hurt surrounding extensor muscles and nerves when the carpal canal is released, and the handle at the rear end of the scissor body provides an appropriate angle for an operator through the guide arc-shaped block.

The invention discloses a clinical head and neck fixation device for nerve intervention, which comprises a first support plate, the lower surface of the first support plate is provided with a fixing plate, and the lower surface of the fixing plate is provided with two fixing strips, the front and rear of the two fixing strips are Corresponding to the setting, the end of the fixing bar away from the fixing plate is provided with a second support plate, and the fixing bar is respectively fixedly connected with the fixing plate and the second support plate through studs, and the upper surface of the second support plate is provided with two baffles, the baffles The front and rear corresponding settings, the front and rear side surfaces of the baffles are respectively provided with holes, the upper surfaces of the two baffles are provided with two first sponge fixing belts, and the first sponge fixing belts for two people are correspondingly arranged on the left and right. This nerve intervention clinical head and neck The fixing device has a firm and durable structure, is easy to operate, and can be fixed conveniently, which brings convenience to the use. It can also be fixed on the hospital bed, and can fix the patient's body and head together, which can improve diagnostic accuracy and help improve surgical efficacy and Increase surgical safety.

The invention provides a medical handle, trephining system and an operation method thereof. The medical handle comprises a holding handle, a sheath fixedly connected with the holding handle, and a shifting ring relatively rotationally sleeving the sheath, wherein a clamping piece is arranged on the sheath; the clamping piece can realize position variation between a working position and a retraction position under the effect of the shifting ring; and the retraction position is farther from the rotating center of the shifting ring in the radial direction than the working position. By rotating the shifting ring, the clamping piece can realize position variation between the working position and the retraction position under the effect of the shifting ring, so that a medical trephine can be effectively prevented from taking out of the sheath in the working process, simultaneously the medical trephine is fixedly connected with the handle in a detachable manner, the replacement cost is reduced, and the work efficiency is improved.

The embodiment of the invention discloses application of lobaplatin in preparation of a preparation for preventing and treating local middle-and-advanced-stage esophageal cancer radical operation postoperative relapse and metastasis, and relates to the technical field of esophageal cancer treatment. Lobaplatin is used for local chemotherapy in the corresponding period in an local middle-and-advanced-stage esophageal cancer radical operation, and the operation and early-stage chemotherapy are organically combined, so that postoperative tumor relapse and metastasis are reduced, the operation curative effect is improved, few adverse reactions are generated, the safety is high, and the lobaplatin is worthy of application and popularization in clinic.