373 results about "Postoperative complication" patented technology

The invention provides a navigation device capable of accurately positioning high tibial osteotomy. The navigation device comprises a positioning template and a bone cutting template, wherein the positioning template comprises a first fixing sheet, and navigation holes are formed in the first fixing sheet; the bone cutting template comprises a second fixing sheet, and a pendulum saw bone cutting groove is formed in the second fixing sheet. The invention further provides a manufacturing method of the navigation device capable of accurately positioning the high tibial osteotomy. The method comprises the following steps: collecting raw data, establishing a three dimensional model, determining a bone cutting plane and a bone cutting angle, designing navigation templates and making the navigation templates. Through the adoption of the navigation device and the manufacturing method thereof, which are disclosed by the invention, the diagnostic accuracy is further improved, the bone cutting accuracy is guaranteed, the limb alignment is restored, postoperative complications are reduced, and the functions of knee joints are improved.

The invention discloses full nutrition formulation food for tumors and belongs to the field of special medical-purpose food.The full nutrition formulation food for tumors is in the form of powder or particles or bulk, the water content is not greater than 5%, and the food comprises, by weight, 1-20 parts of compound polysaccharide extract, 10-30 parts of compound protein peptide, 1-20 parts of carbohydrate, 20-80 parts of fat, 1-10 parts of amino acid, 0.1-5 parts of compound vitamins, 0.1-5 parts of compound mineral matter and 1-10 parts of curcumin extract.The full nutrition formulation food for tumors not only can meet the nutritional requirements of a tumor patient but also can conduct immunoregulation on the tumor patient, inhibit growth, recurrence and metastasis of tumors, decrease postoperative complications of tumor surgery, improve tolerance of tumor chemoradiotherapy improve living quality of the tumor patient and prolong lifetime of the patient.

The invention provides a stepped balloon dilatation vascular stent. The stepped balloon dilatation vascular stent comprises N stent segments with different dilatation calibers, wherein the adjacent stent segments are connected by transition regions; each stent segment comprises a plurality of ring-shaped support bodies, and the adjacent ring-shaped support bodies are connected by connecting bars; the ring-shaped support bodies are sequentially arranged in the axial direction of the vascular stent; the adjacent ring-shaped support bodies are in mirror symmetry distribution; each ring-shaped support body comprises a plurality of sine unit waves in the same shape, and the unit waves are sequentially arranged in the circumferential direction of the vascular stent. According to the stepped balloon dilatation vascular stent, the axial flexibility and the radial rebound rate of the vascular stent are drawn into consideration by changing the dilatation calibers and the step number of the stent segments, the wave heights and widths of the unit waves and the connecting modes of the transition regions between the stent segments, so that the service life of the vascular stent is prolonged, and vascular stent adherence un-favorability, vascular stent thrombosis and other interventional postoperative complications can be prevented.

The invention relates to a chitosan biofilm polypropylene mesh and a preparation method thereof. According to the invention, a polypropylene mesh is processed by using waterless ethanol and deionized water; the polypropylene mesh is modified by using 1.0 to 5.0% of a chitosan film forming solution through a process of biofilm forming, such that a chitosan biofilm polypropylene mesh is obtained. The method of the invention is simple and operable. No toxic or harmful reagent is included. No adverse effect is brought to subsequent applications of the medical mesh. According to the invention, the polypropylene mesh has a high porosity, peripheral tissue can well contact and grow on the polypropylene mesh, such that the anti-stretching property of a repaired part is enhanced; also, chitosan has a good biocompatibility, such that complications such as polypropylene mesh erosion, exposure and tissue adhesion at an implantation position are effectively reduced. The chitosan biofilm polypropylene mesh is especially suitable for clinical women pelvic reconstructive surgery. With the chitosan biofilm polypropylene mesh, histocompatibility of the polypropylene materials in pelvic reconstructive operations is improved, and pelvic reconstruction postoperative complications are reduced.

The invention relates to a hepatic functional reserve detector capable of removing blood oxygen fluctuation interference. The hepatic functional reserve detector consists of a photoelectric finger clip sensor, a data memory, a liquid crystal display module, a light source driving circuit, a microprocessor, a signal separating circuit, a signal amplifying circuit, an A/D (analog/digital) conversion circuit, a wireless communication module and a computer, the photoelectric finger clip sensor is respectively connected with the data memory and the liquid crystal display module via the light source driving circuit and the microprocessor, the photoelectric finger clip sensor is connected with the microprocessor via the signal separating circuit, the signal amplifying circuit and the A/D conversion circuit, the microprocessor is connected with the wireless communication module, and the computer is connected with the wireless communication module via Bluetooth. A concentration spectrum of indocyanine green (ICG) pigment used as indicator is separated from a blood oxygen absorbing spectrum, inference of low blood oxygen and blood oxygen fluctuation to pigment concentration measurement is suppressed, a diluted concentration curve of the ICG pigment injected via a vein is accurately measured, the purpose of non-invasively and continuously measuring cardiovascular and hepatic haemodynamics parameters such as pigment blood plasma disappearance rate K, 15-minute detaining rate R15 and the like is achieved, surgery risks can be accurately predicted by means of detecting hepatic functional reserve, a proper therapy mode is selected, and operative mortality and postoperative complications can be effectively reduced.

The invention provides an intraoperative support conveying system and an intraoperative support system. An intraoperative support comprises a main support and a side supporting support arranged on the main support and stretching outwards. The intraoperative support conveying system comprises a main lining and a side supporting lining arranged on the main lining. The side supporting support is configured to be arranged on the side supporting support in a sleeving mode, the main support is configured to be arranged on the main lining in a sleeving mode, and the side supporting lining is arranged on the main lining in a swing mode to synchronously drive the side supporting support to swing relative to the main support. By the arrangement of the side supporting lining capable of swinging relative to the main lining, the side supporting support can synchronously swing relative to the main support, the side supporting support is aligned with the left subclavian artery to be easily implanted during an operation, it is avoided that the time of freeing and suturing the left subclavian artery in thoracotomy operation is too long, so that postoperative complications are increased, then the operating difficulty of the operation is reduced, the operating time of the operation is shortened, and the adaptation disease range of the operation is widened.

The invention provides a setting method of an elastic thread in an ejection type ligation device and an elastic thread ligation device. The setting method of the elastic thread comprises steps as follows: a loop is formed by the front end of the elastic thread in a slipknot form, the loop is arranged in a loop push piece at the front end of a gun head in a sleeving manner, a slipknot of the loop is clamped outside a thread clamping groove in the front end of the loop push piece, the elastic thread is arranged in the thread clamping groove, and the tail end of the elastic thread is finally clamped into a clamping groove in a gun handle and fixed in a direction of a gun barrel; the loop push piece is propped against an infected part, when an ejection block drives the loop push piece to move forwards, the loop is enabled to be separated from the loop push piece and is arranged on the infected part in a sleeving manner, the tail end of the elastic thread is taken down and tightened, the slipknot of the loop is propped by the thread clamping groove of the loop push piece, and the elastic thread is continuously tightened, so that the pore diameter of the loop of the elastic thread is reduced gradually. The invention further provides an ejection type elastic thread ligation device adopting the method. The ejection type elastic thread ligation device is simple in structure, convenient to operate, accurate in operation and applicable to treatment of hemorrhoids and other anorectal diseases, a wound surface of postoperative target tissue is small, and the probability of postoperative complications and hemorrhage can be reduced.

The present invention provides a set of internal fixing surgical instruments for minimally invasive lumbosacral anterior fusion operation, including a series of components of a positioning channel, a guide pin, a main channel, a drilling head, an intervertebral processor with a self-adjusting rotary cutter head, a water-injection style intervertebral cleaner, a thick wall channel sleeve, a fixing channel, a fixing screw, a screw fastening device, a screw end cap, an end cap fastening device etc.; in view of the abnormal function of the intervertebral structure, intervertebral instability, nerve root involvement and other lesions of the lumber vertebra section caused by lumbar intervertebral DDD, the application of the instruments can reduce the injuries and damages to the adjacent soft tissues and the spine stable structure to the maximum extend based on the smooth completion of the surgical operations of disc excision, intervertebral space processing, intervertebral space expansion, intervertebral fusion, internal fixation and so on, at the same time, the present invention can also reduce the postoperative complications, shorten the hospital stay and reduce the hospitalization cost to the maximum extend, thereby improving the operation effects and the satisfaction to the maximum extend.

The invention discloses a digital anesthesia control system which is characterized by comprising a sensor, a host computer, a control software unit and an electronic infusion micro-pump, wherein the host computer comprises a medicine digital module, the control software unit comprises an input end and an output end, the input end of the control software unit is connected with the sensor and the medicine digital module, and the output end of the control software unit is electrically connected with the electronic infusion micro-pump. The digital anesthesia control system can realize accurate medical treatment to ensure that an anesthetic can be used more accurately, a small amount of the anesthetic can achieve an effective anesthetic effect, the anesthesia quality and the operation safety are improved, and postoperative complications caused by anesthetic overdose are also avoided.

The invention discloses an orthopedics preoperative planning-oriented implant feature parameter editing method. The orthopedics preoperative planning-oriented implant feature parameter editing methodincludes the following steps: a first step, constructing an implant feature model library, and classifying implants according to fracture information and implant feature parameters; a second step, selecting an implant model from the implant feature model library according to three-dimensional morphological parameters and the fracture type of a patient; and a third step: adjusting the feature parameters of the selected implant model to meet the stress requirements of the individual patient. The invention can design an implant meeting the anatomical features and conditions of the individual patient for the individual patient, and is fast and efficient; and the designed implant can match the individual patient well, and a series of postoperative complications such as the restoration loss after fixation, the non-union of the fracture or malunion healing can be reduced.

Disclose is a method for complex phalloplasty with minimal incision. In the method, a penile skin part directly behind the glans is minimally incised in a transverse direction with a depth enough to expose a Buck's fascia, a penile enhancement object made of a dermal strip is inserted between the subglans margin and the tunica albuginea through the minimally incised penile skin part. Then, the incised part is widened by a retractor, thereby enabling a prepubic area to be visible. Then, a part of a fundiform ligament or a suspensory ligament is partially incised, fixed, and then sealed. The minimal incision reduces the surgery time, reduces occurrence of postoperative necrosis and inflammation, thereby enabling the patients to rapidly recover from the surgery, and reduces postoperative complications, thereby enhancing the patients' satisfaction.

An embodiment of the invention discloses a high tibial biplane osteotomy navigation guide plate. The guide plate comprises an upper split guide plate and a lower split guide plate which are fixedly connected by two connecting rods. An osteotomy guide groove is formed between the upper split guide plate and the lower split guide plate. Two non-parallel kirschner wire fixing guide holes are formed in the middles of the upper split guide plate and the lower split guide plate. Parallel guide holes are formed in the upper part of the upper split guide plate. One side of the upper split guide plateis provided with an angle guide backup plate. The upper split guide plate and the lower split guide plate are respectively provided with an upper angle positioning rod and a lower angle positioning rod in a vertical corresponding mode, and the end portions are respectively connected with an upper angle positioning guide hole and a lower angle positioning guide hole. The guide plate can not only eliminate the difference between experiences of doctors in a surgery, but also greatly reduce the operation time and the amount of bleeding during the surgery to achieve the best ideal state of osteotomy. The recovery time of a patient is greatly reduced, postoperative complications are reduced, and expenses in the recovery period are saved.

The invention relates to a prosthetic for repairing an opening or a defect in a soft tissue, to its preparation and use. The prosthetic of the invention comprises a substrate viscerally-coated with stabilized and non-completely dry fibrin. The prosthetic displays reduced postoperative complications following its implantation.

The invention discloses a method and a device for implanting a virtual stent for an intracranial aneurysm. The method comprises establishing a three-dimensional model of a target parent artery and ananeurysm based on intracranial image data, wherein the three-dimensional model comprises a virtual parent artery of the target parent artery and a virtual aneurysm of the aneurysm; extracting the artery centerline of the virtual parent artery according to the three-dimensional model; scaling the virtual stent based on the artery centerline until the scaled virtual stent meets the preset conditions, implanting the scaled virtual stent into the virtual parent artery and releasing the scaled virtual stent till the maximum displacement increment value is less than the preset displacement incrementvalue. According to the method, the simulation calculation time of the stent simulation implantation can be reduced to assist a doctor to plan a solid stent implantation operation and further improvethe application rate of the solid stent. With the stent simulation implantation as a reference, the solid stent implantation accuracy can be improved to reduce the risk of the solid stent implantation operation and the likelihood of postoperative complications.

The invention discloses a knee joint balance detection system in total knee replacement and a balance discrimination method thereof. The system is characterized in that a left pressure sensor set anda right pressure sensor set are attached to the left and right regions of a gasket, in the operation process, the gasket is placed in a gap between the thigh bone prosthesis and the tibia bracket, data of the left and right sensor sets can be obtained during 0-degree knee bending, 90-degree knee bending, internal rotation and ectropion, due to data analysis, whether the knee joints are located inthe balanced state or not is judged, and if the knee joints are in the non-balanced state, by properly repairing bones or adjusting the position of a prosthesis, the knee joints are in the balanced state finally. By keeping the position unchanged, surgical suturing is performed. By improving the accuracy of surgical knee joint balance, the important role in prolonging the service life of the postoperation prosthesis of a patient, reducing postoperative complications, and improving the postoperation living quality of the patient is achieved.

The invention belongs to the technical field of medical appliances and particularly discloses a rigid endoscope used for examination and matched with a balloon-shaped sheath tube. The rigid endoscope comprises a rigid endoscope main body and the sheath tube used for examination and detachably used with the rigid endoscope main body, wherein the rigid endoscope main body comprises a rigid working end part, a cold light source connector, a data connector or an ocular lens input end; the sheath tube used for examination comprises a sheath tube shaft; an inflatable balloon used for closing a front end opening is integrally arranged at the front end opening of the sheath tube shaft; the inflatable balloon is a transparent body; an air guide tube with a one-way valve is arranged in the sheath tube shaft; and a sheath tube bayonet matched with the rigid endoscope main body is arranged at the back end part of the sheath tube shaft. According to the endoscope, a diseased region can be fixed and expanded by utilizing the inflated highly transparent balloon and human natural orifice wrinkles can be effectively supported open, so that the view field of an examination position under the endoscope is clear and visual; and the filling of liquid or air does not need to be carried out during examination, so that the air or liquid residues or leakage is not caused and the risk of intraoperative or postoperative complications is lowered.

The invention discloses a bionic artificial vertebra with capacity of motion and capable of being implanted conveniently, and belongs to the technical field of medical apparatus for orthopedics. According to the technical scheme, the bionic artificial vertebra is composed of an upper joint body and a lower joint body, the periphery of the upper joint body and the periphery of the lower joint body are each composed of an annular titanium mesh supporting bone grafting ring, the upper joint body and the lower joint body are connected with a repaired vertebra, the lower end face of the upper joint body and the upper end face of the lower joint body are provided with an arc-shaped depression and an arc-shaped protrusion respectively, the curve radian of the arc-shaped depression is matched with the curve radian of the arc-shaped protrusion, and the circumference of the arc-shaped depression and the circumference of the arc-shaped protrusion are each provided with four ball sockets with small diameters, wherein each two ball sockets are opposite to each other, and each pair of opposite ball sockets with the small diameters are embedded with movable balls. According to the bionic artificial vertebra with the capacity of motion and capable of being implanted conveniently, the upper joint body and the lower joint body take the arc-shaped protrusion as a main shaft, the balls in the ball sockets on the periphery are taken as movable shafts, and protraction, retroflexion, left side bend, right side bend and rotation movements of vertebra segments can be completed; the height and flexibility of comminuted and blow-out vertebra fractures with different degrees can be effectively recovered, fixation is firm, and postoperative complications are few.

The invention discloses a sectional adjustable artificial hip joint prosthesis. The sectional adjustable artificial hip joint prosthesis comprises a handle-shaped body capable of being inserted into the femoral myelocavity, the lateral upper part of the handle-shaped body extends, an included angle between the axis of an extension end and the axis of the handle-shaped body is 110-140 degrees, the end part of the extension end is connected with a globoid matched with the acetabulum, the handle-shaped body is in an integrated structure or a meshed insertion structure, one end of the extension end is hinged with or fixedly connected with the globoid, and the other end of the extension end is hinged with the handle-shaped body. When the hip replacement operation is carried out clinically, the adjustment on the collodiaphyseal angle and the femoral neck anteversion is conveniently realized when different thighbone patients wear the hip joint prosthesis, while hip replacement is realized, dissection imbedding and fixation are realized, individual differences of the people are perfectly adapted, the hip replacement curative effect is improved, the accurate medical treatment is realized, and postoperative complications are further reduced.

The invention provides a hollow screw structure, comprising a hollow screw body, an injector and a seal nut, and also provides usage of the hollow screw structure. The hollow screw structure is firmly fixed by engaging an external thread at the far end of the injector with an internal thread at the near end of the hollow screw with threaded lateral gap, after being injected, injectable solidifying material such as bone cement may be discharged evenly out of the screw from the threaded lateral gap and top opening of the hollow screw and fill a fixed object around, holding power of the screw may be increased, fixing strength can be improved, local fixing environment can be improved, and postoperative complications are decreased. After being engaged, the rear thread can prevent the injected liquid from overflowing from the rear, injection quantity control is facilitated, a bone cement sheath formed by a forward travel threaded lateral gap can prevent the screw from loosening and retreating, the hollow structure of the screw is helpful for in-position positioning of a fine pin before the screw is tightened in by directly sleeving on the fine pin, and operation is facilitated.

The invention discloses a circumcision postoperative protection device which comprises a wearing component, a lifting arm and a spraying device. A human body wears the wearing component, a protectivecover is arranged on the wearing component, fastened on a penis and provided with a cavity for containing the penis, the lifting arm is arranged in the protective cover and used for lifting the penis,and the spraying device is used for spraying disinfectants. The circumcision postoperative protection device provides an independent space for the penis, and exacerbation of postoperative complications such as postoperative pain, even wound dehiscence bleeding and wound extravasated blood infection caused by contact friction of the penis and underpants and thigh root skins is avoided. The protective cover can be rigid, has plasticity and can avoid deformation of the protective cover caused by external force, and secondary injury to wounds caused by the external force can be avoided.

The invention discloses a combination-type intra-operative on-demand blocking branched stent-type blood vessel. The stent-type blood vessel is used in open-type operations of replacing aorta arches and branch blood vessels thereof during the aortic dissection treatment. The combination-type intra-operative on-demand blocking branched stent-type blood vessel comprises two or three stent-type blood vessel bodies from the distal end of the aorta arch to the proximal end of the aorta arch, can be suitable for individual structures of three branch blood vessels of the aorta arch of a patient, and improves the matching degrees between the stent-type blood vessel and the three branch blood vessels of the human-body aorta arch. When the stent-type blood vessel is used, dissociative brachiocephalic blood vessels can be avoided or reduced, it is unnecessary to replace the aorta arch and branch blood vessels, anastomotic stomas are reduced, and the extracorporeal circulation time and the unilateral cerebral perfusion time are shortened, so that operative manipulation difficulties and operative wounds are reduced, the operation time is shortened, postoperative complications are reduced, and the mortality rate is reduced.

The invention provides an occluder. The occluder comprises a first occluding part and a second occluding part, a connecting bolt is arranged at the far end of the first occluding part along the direction of the second occluding part, a first external thread is arranged on the side wall of the connecting bolt, a protruding part is arranged at the near end of the second occluding part, a through hole is formed in the protruding part, a second external thread is arranged on the side wall of the protruding part, the thread direction of the first external thread is opposite to that of the second external thread, and the near end of the connecting bolt can penetrate through the through hole to be in threaded connection with a nut. The invention further provides an occluder locking system and a locking method thereof. According to the structure of the occluder, efficient, stable and reliable locking can be achieved under the combined action of a pushing device, so that the service life and the occluding effect of the occluder are prolonged, the risk of postoperative complications is reduced, and the occluder is particularly suitable for occluding treatment of aortic dissection crevasses.

The invention belongs to the field of medical equipment, and particularly relates to a finger joint prosthesis structure. The a finger joint prosthesis structure comprises a proximal prosthesis, a joint assembly, a distal prosthesis and a rotating shaft; the proximal prosthesis comprises a proximal prosthetic joint part and a proximal prosthesis handle part, the joint assembly comprises a joint assembly head part and a joint assembly tail part, and the distal prosthesis comprises a distal prosthetic head part and a distal prosthesis handle part; the proximal prosthetic joint part and the jointassembly head part are in shaft-fit connection through the rotating shaft, the joint assembly tail part is connected with the distal prosthetic head part, the proximal prosthesis handle part is threadedly connected with a proximal setscrew, and the distal prosthesis handle part is threadedly connected with a distal setscrew. The finger joint prosthesis structure has the advantages that a semi-closed structure and a ball-fitting structure are used in joint parts, thereby maximally preventing a muscle tendon from being caught in the rotating shaft to result in a movement disorder when the finger moves, a universal rotation is more accord with the real motion range of small joints of human bodies, the risk of muscle tendon fracture is reduced, the postoperative complications are reduced, andnormal joint functions are better achieved.

The invention discloses an artificial bladder device which comprises an artificial bladder body, an artificial ureter and an artificial urinary, wherein the artificial bladder body comprises a closed soft material inner layer, a vacuum layer and a closed hard material outer layer; a top electrified spiral plate, a middle electrified spiral plate and a bottom electrified spiral plate are arranged on the closed soft material inner layer; a supporting plate is arranged at the bottom of the artificial bladder body; a through hole through which the artificial urinary is communicated with the artificial bladder body and two urinary closure slide blocks capable of closing the through hole are arranged on the supporting plate; a pressure sensor is arranged at the bottom of the artificial bladder body; a rechargeable battery is arranged on the front surface of the artificial bladder body; the artificial bladder device further comprises a processor chip, a wireless remote control or a mobile phone control terminal; the pressure sensor, the rechargeable battery and the wireless remote control or the mobile phone control terminal are connected with the processor chip. According to the device disclosed by the invention, multiple postoperative complications of radical cystectomy and orthophoria ileal conduit Bricker operation can be solved.

The invention provides a dural/spinal dural biological patch material, a preparation method and application thereof. The obtained biological patch material is especially suitable for repair of dural/spinal dural defect, can maintain stable and non-degradable within 6 months-2 years after being implanted into the human body or animals, and can degrade gradually after more than 2 years. While ensuring certain mechanical properties and liquid seepage resistance, the biological patch material also has biocompatibility, has greatly reduced risks of postoperative complications and side effects, and meets the special requirements for dural/spinal dural defect repair materials.