128 results about "Fixation method" patented technology

A patella fracture fixation system includes a bone plate that is configured to be implanted along an anterior approach. The bone plate has a fixation hub and a plurality of fixation nodes that are connected to the fixation hub. The fixation hub and the fixation nodes can define respective fixation holes. The bone plate can further include legs that are configured to be bent around respective inferior aspects of the patella.

The invention discloses a PICC (Peripherally Inserted Central Catheter) tip precise navigation fixing method and system based on electrocardiogram real-time positioning. High-precision positioning and safe fixing of a catheter tip are realized through a multi-modal data fusion and deep learning technology. The method comprises the following steps: collecting intracavity electrocardiosignals (ECG) in real time through a catheter built-in electrode, and obtaining blood vessel wall contact pressure and temperature data in combination with an optical fiber sensor; an improved wavelet threshold algorithm is adopted to dynamically suppress motion artifacts, and P-wave features are enhanced; the preprocessed ECG signals are input into a spatial-temporal feature fused Transformer model, a time attention layer is used for analyzing P-wave time sequence changes, a space attention layer integrates multi-lead space distribution features, and the positioning precision is optimized in combination with preoperative blood vessel anatomical data; the ECG positioning result and the optical fiber sensing data are fused through Kalman filtering, three-dimensional position information of the tip end of the catheter is generated, and real-time navigation is conducted on an augmented reality interface; and when the P wave amplitude reaches a CAJ threshold value, the contact pressure is safe and no abnormal temperature exists, a shape memory alloy (SMA) fixing ring is triggered to contract, and accurate fixing is achieved. The method solves the problems that a traditional method depends on X rays and is poor in anti-interference performance, has the advantages of being free of radiation, high in real-time performance and adaptive to blood vessel deformation, and is suitable for clinical P catheter implantation.

A fixation member, an orthopedic device using a fixation member, or a method for using the same includes fastener elements that are integrally formed with the fixation member that can be attached to the orthopedic device without adhesive. The fixation member may be secured to the orthopedic device through welding and / or a mechanical connection. The welding attachment may involve a weld created through various processes, including a heat staking process.

This disclosure relates to surgical systems and methods for planning and implementing surgical procedures. The systems and methods disclosed herein may be utilized for implant design and placement. The disclosed implants may include one or more fixation members for securing the respective implant at a surgical site. The implant design may establish a geometry of each fixation member.

The invention discloses a modification method of NAD (P), which comprises the following steps: S1, reacting Br <-> (CH2) x-NH2. HBr with NAD (P) to obtain N1-(x-(CH2) xNH2)-NAD (P) < + >; s2, carrying out rearrangement reaction on the N1-(x-(CH2) xNH2)-NAD (P) < + > to obtain N6-(x-(CH2) xNH2)-NAD (P) < + >; wherein x is equal to 2-6. The invention further provides a method for fixing the modified NAD (P) and a continuous analysis sensor. The method provided by the invention is environment-friendly and harmless, amino groups are modified and added on the NAD (P), and the NAD (P) can be effectively fixed, so that the stability of the sensor is effectively enhanced, and the service life of the sensor is prolonged.

A multifunctional trachea cannula fixator belongs to the technical field of medical instruments. The trachea cannula fixing device solves the problems that a device used in an existing trachea cannula fixing method is prone to injuring the face, the mouth and the lips of a patient, and oral cavity nursing is not convenient. The silica gel sleeve is sleeved on the outer side of the bite block, the clamping belt surrounds the outer side of the silica gel sleeve, the fixing belt is connected with the clamping belt, a sputum suction hole is arranged on the bite block, a plurality of suction holes are processed on the lower half part of the bite block, the suction holes are communicated with the sputum suction hole, a trachea cannula wrapping hole is further processed on the silica gel sleeve, and the trachea cannula wrapping hole is communicated with the trachea cannula wrapping hole. The trachea cannula catheter is placed in the trachea cannula wrapping hole. The multifunctional trachea cannula fixer has a good fixing effect on the trachea cannula, is fixed on the head of a patient through the fixing band to avoid irritation and injury to the skin of the patient, and also solves the problem that the adhesive tape slips off due to secretion of facial grease.

The present invention provides an indwelling needle fixator for pediatric care, which relates to the technical field of medical equipment, comprising: a fixed wrist ring, wherein five inflatable bags are arranged on the inner side of the fixed wrist ring; a support frame plate is arranged on one side of the fixed wrist ring; a fixed hand strap is arranged on the support frame plate; and two positioning frames are arranged on the top of the support frame plate, and the inflatable bags are inflated by using the inflation port, and the tightness of the fit between the child's wrist and the inflatable bags and the support ring is ensured by adjusting the inflation amount of the inflatable bags, so as to achieve better fixation requirements, and the pressure on the wrist can be adjusted by the inflatable bags, thereby satisfying the comfort level of the patient, and solving the problem that the existing indwelling needle fixator for pediatric care generally fixes the indwelling needle by a medical strap during use, but the fixing method is not easy to adjust, the fit force on the child's wrist is too large, and the long-term fit with the skin will cause discomfort, and the indwelling needle will be offset during the child's activities, which is likely to cause some safety hazards.

The invention discloses a limb fixing device for an emergency patient, and belongs to the technical field of limb fixing equipment.The limb fixing device comprises a bandage and two fixing plates, a limb limiting plate is arranged between the two fixing plates, a pressing limiting plate which slides in a clamped mode is arranged on the limb limiting plate, and a transmission adjusting device which is fixedly connected is arranged on the pressing limiting plate; the transmission adjusting device is connected with a fixing plate, and a sliding limiting device is arranged on the fixing plate. According to the limb fixing device for the emergency patient, in order to avoid the situation that the limb is transported and hurt is caused when the limb is fixed, the movement range of the limb is limited in a combined splicing mode, the distance between the fixing device and the limb is automatically adjusted through a single-side pressing and fixing method, and the effect of automatically fixing the limb is achieved.

The present invention provides a combined fracture internal fixation device, which includes a fixing rod and a plurality of sliding fixing members slidably mounted on the fixing rod. A torsion locking member is rotatably mounted above each of the plurality of sliding fixing members. A upper half clamping cover is slidably mounted on one side of the torsion locking member. The torsion locking member is used to twist the using direction of the upper half clamping cover, and the upper half clamping cover is used to cooperate to eliminate the installation deviation of the surgical screw. The present invention can adapt to more surgical plans and can match the differences caused by some bone difference factors, so as to solve the problem that the existing screw installation holes are often pre-fixed and non-adjustable. Due to factors such as the fracture site, type and individual bone differences of different patients, this design of fixed holes is often difficult to accurately adapt, and even requires a second operation to adjust the fixation method.

The invention discloses an orthopedic external fixing device and a fixing method of a fixing needle of the orthopedic external fixing device. The orthopedic external fixing device comprises a fixing plate, the fixing needle, a first clamping plate and a second clamping plate. A plurality of through holes are formed in the fixing plate, and the fixing needles penetrate through the corresponding through holes in the fixing plate; the first clamping plate and the second clamping plate are arranged on the two sides of the fixing plate in the thickness direction respectively and installed on the fixing needle, and the first clamping plate and the second clamping plate abut against the end faces of the two sides of the fixing plate respectively so as to limit movement of the fixing plate in the axial direction of the fixing needle. Friction force between the two clamping plates and the fixing plate can further limit movement of the fixing plate in the radial direction of the fixing needle, and therefore indirect connection between the fixing needle and the fixing plate is achieved. In the whole connecting process, the fixing needle can not make any direct contact with the fixing plate, the fixing needle can penetrate through the fixing plate at various angles, the requirement for the positioning precision of the fixing needle is lowered, the operation difficulty of a doctor is lowered, and the universality of the external fixing device for the orthopedics department is improved.

The utility model relates to the technical field of radiation experiments, and discloses a fixing device of a rat back skin radiation experiment model, which comprises a lead light limiting structure, a fixing structure and a supporting structure, the fixing structure is positioned at the lower end of the lead light limiting structure, and the supporting structure is positioned at the middle lower part of the fixing structure. According to the fixing device for the rat back skin radiation experiment model, the needed irradiation shape and size can be selected within the range of 3 * 8cm according to the modeling requirement of an actual rat skin radiation model, and normal tissue is fully protected through the lead light limiting structure on the fixing device; the back skin of the rat is fully extended and exposed through the skin fixing structure; the lead block can be infinitely close to the irradiation area through the bottom supporting structure, and the rat lying on the side is not extruded. The fixing mode only irradiates the skin, and normal tissue is protected to the maximum extent; the problem that a normal tissue is inevitably radiated and cannot be molded to increase the dosage can be solved. The fixing device for the rat skin radiation model is simple, easy to operate and high in repeatability.

To provide a carbon dioxide fixation apparatus and a method for fixing carbon dioxide, which can inexpensively fix carbon dioxide and also can inexpensively produce powder having carbon dioxide fixed therein in large quantities. The carbon dioxide fixation apparatus (1) includes water addition means (5) for adding water to concrete sludge (2) from which coarse aggregate and fine aggregate have been removed with stirring, supply means (11) for supplying a carbon dioxide-containing gas (G) to a first intermediate (6) which has passed through the water addition means (5), and water drain means (20) for draining water from a second intermediate (12) which has passed through the supply means (11) to produce powder containing precipitated calcium carbonate, which is calcium carbonate crystals, cement carbonatized powder in which calcium components in cement particles are carbonatized on the surface of the cement particles, and unreacted cement particles.

The utility model discloses a dressing patch for fixing a catheter for HAIC treatment, which comprises a dressing patch main body, the back of the dressing patch main body is provided with an adhesive layer and is matched with a release layer, the dressing patch main body is provided with an inward concave area which is limited as a puncture area, and the adhesive layer is provided with an adhesive tape. A first auxiliary patch is arranged on the upper side of the inwards-concave area and used for fixing the catheter sheath in the mode of being attached to the skin. In the HAIC pipeline fixing nursing process, various fixing modes of the radial artery and the femoral artery under a common catheter or a micro catheter can be achieved; the pipeline can be arranged in a U-shaped mode, an S-shaped mode and a bending and coiling mode.

A cerclage device configured for fixation of at least one bone portion and / or tissue of a subject's shoulder is disclosed. The cerclage device comprises an elongate member having a medial end and a lateral end. The cerclage device is configured to be irreversibly secured relative to the at least one bone portion and / or tissue when the medial end and / or the lateral end are moved in a fastening direction. The cerclage device may be coupled with a metaphyseal component or humeral prosthesis implanted in the subject's shoulder. A method for cerclage fixation of at least one bone portion and / or tissue of a subject's shoulder using a cerclage device is also disclosed. A cerclage device and method for cerclage fixation of at least one bone portion and / or tissue of a subject's body is also disclosed. The cerclage device may be coupled with a fixation support implanted in the subject's body.

The invention discloses a whole-course anchoring and fixing method for a deep venous catheter. The method comprises the following steps: firstly, implementing double-layer pouch suture at a puncture point of the catheter by adopting an antibacterial-absorbable composite suture so as to finish primary anchoring and sealing; then, the same suture is spirally wound to the tail end in a sectional mode along the in-vitro section of the catheter, and detachable middle anchoring pieces are arranged on the winding path at intervals so as to provide sectional supporting. Finally, the tail end of the catheter is locked through an adjustable intelligent fixing disc and covered with sterile dressing. By constructing a four-stage fixing system of puncture point suture anchoring, body spiral winding restraining, middle anchoring piece supporting and terminal fixing disc locking, whole-course, three-dimensional and firm anchoring of the deep venous catheter from the puncture point to the tail end is achieved, and the traction resistance and the displacement resistance are remarkably improved. The method has the advantages of actively preventing and controlling infection, dispersing local pressure, improving patient comfort and adapting to various clinical scenes, and catheter related complications can be effectively reduced.

The invention relates to the technical field of medical instruments, and discloses a leg fixing device and a fixing method thereof.The leg fixing device comprises a clamping mechanism, a universal connecting assembly and a fixing assembly; the clamping mechanism is clamped at the knee of the leg, the clamping mechanism is connected with the fixing assembly through the universal connecting assembly so that the clamping mechanism can be clamped at different positions, and the fixing assembly is fixed to a treatment bed; the clamping mechanism comprises a first clamp, a second clamp and a sliding rail; the first clamp and the second clamp are oppositely arranged and are in sliding connection with the sliding rail so that the first clamp and the second clamp can get close to each other or get away from each other, the knee is clamped through the first clamp and the second clamp, the first clamp and the second clamp are fixed to a treatment bed through the fixing assembly, and therefore the knee is fixed. The technical problem that in the prior art, the surgical leg shakes, consequently, punching is inaccurate, and the surgical effect is affected is solved, and the technical effects that the surgical leg is firmly fixed, and drilling is accurate are achieved.

The invention relates to the technical field of medical instruments, in particular to a mouse tail intravenous injection fixing method and device which comprises a supporting panel, an axial pressing mechanism, an open barrel, two opening locking mechanisms, four circumferential pressing mechanisms and an overall inclination angle adjustable supporting mechanism. The axial pressing mechanism comprises a lead screw, a supporting plate, two first locking nuts, a pressing plate, two second locking nuts and a downward pressing arc plate. According to the device, the mouse is axially and effectively fixed through the adjustable lead screw, the pressing plate, the supporting plate with the U-shaped opening and the axial pressing mechanism. A transparent and elastic open type cylinder body is matched with four circumferential pressing mechanisms, so that mice with different body types can easily enter and be circumferentially fixed, ventilation and comfort are guaranteed, and experimental observation is facilitated; through the overall inclination angle adjustable supporting mechanism, the comfort of an operator is improved, and the accuracy and efficiency of injection are improved; the device is convenient to adjust, stress response and accidental injury of mice can be effectively reduced, and the caudal vein injection efficiency is improved.

The present invention belongs to the field of osteotomy orthotics in orthopedics, and in particular relates to a computer-aided design of a personalized lumbar intervertebral fusion device and a design and manufacturing method thereof, which includes reconstructing a patient's lumbar vertebrae model, measuring the position parameters of the intervertebral fusion device to be implanted and the parameters of the vertebral body under the fusion device in the patient's lumbar vertebrae model; using modeling software, taking the normal vertebral body shape as a reference, and taking the measured intervertebral size parameters of the patient as a standard, designing the shape parameters of the intervertebral fusion device body; designing positioning wings on the fusion device body in combination with the size parameters of the vertebral body under the fusion device position; designing two nail holes on the intervertebral fusion device body and the positioning wings, respectively, and fixing the fusion device without notches; the main body adopts a mesh structure and a solid structure arranged in an alternating manner; and adopting 3D printing technology to manufacture the device. The present invention has the following beneficial effects: the lumbar intervertebral fusion device manufactured by the present invention has a moderate volume, and its position and fixing method are accurate and reliable, and the incision insertion of posterior pedicle screws is avoided, thereby realizing minimally invasive, precise, low-cost and short recovery time surgery.

This utility model discloses a porcine reproductive and respiratory syndrome virus (PRRSV) detection kit, relating to the field of detection kits. The PRRSV detection kit includes a kit body, a bracket at the bottom of the kit body, and a detection mechanism on the outside of the kit body. The detection mechanism includes a detection block disposed inside the kit body, a sealing block movably disposed above the detection block, and a fixing bracket movably engaged inside the bracket and movably disposed above the detection block, thus fixing the kit body and the bracket in place. This PRRSV detection kit allows for the determination of the injection site of the kit body without opening the kit body using the detection block. Subsequently, the sealing block sequentially seals the area above the kit body, and the moving fixing bracket secures all kit bodies above the bracket, reducing the complexity of this fixation method and ensuring that the use of the sealing block does not affect the overall fixation effect of the kit body and bracket.

The application discloses a catheter pump assembly, a catheter pump and a fixing method of a sensing device. The catheter pump assembly comprises a pump shell, a sensing device and a cover plate. The pump shell has a flow inlet and a flow outlet. A first installation station is arranged on the outer side of the pump shell close to the flow outlet. The sensing device has a probe. The cover plate is arranged on the first installation station and forms an installation space together with the first installation station, which can accommodate the probe. The cover plate is provided with a first avoiding hole which can avoid the probe, so that the probe can be in contact with the fluid. In addition, the cover plate is provided with a glue injection hole which can inject glue into the installation space. According to the application, the probe of the sensing device is directly fixed on the outer side wall of the pump shell through the cover plate. The probe can directly contact the fluid for detection, the parameter precision of detection and the physiological control effect of the catheter pump are improved, and the probe can not be loosened due to the impact of the fluid, so that the stable fixation of the sensing device and the pump shell is ensured.

This invention belongs to the field of medical devices, specifically a combined internal fixator and fixation method for fixing joints with micro-motion. The combined internal fixator includes a first bone screw and a second bone screw. A movable connecting structure is provided between the connecting ends of the first and second bone screws. The movable connecting structure includes a groove and a shaft. The groove includes an insertion port and a mounting groove communicating with the insertion port. The mounting groove has a semi-circular cross-section. The shaft includes a semi-circular shaft adapted to the mounting groove, which is rotatably accommodated within the mounting groove, allowing the first and second bone screws to rotate relative to each other around a first radial axis. This invention, through a hook-groove sliding self-locking structure, achieves controllable micro-motion and integrated implantation for fixing joints with micro-motion. It has achieved significant technological advancements in preserving joint physiological function, simplifying surgical procedures, avoiding secondary surgeries, and reducing the incidence of complications. It has important clinical application value and is suitable for fixing joints with micro-motion.

The present invention discloses a fixing agent, method and application for dual-color fluorescence detection of anti-NMDAR antibodies, wherein the fixing agent includes a mixture of paraformaldehyde and methanol and acetone, wherein the methanol volume fraction is 10-25%, the acetone volume fraction is 75-90%, and the fixing effect is better by using a mixture of paraformaldehyde with a mass volume ratio concentration of 4% and a volume fraction of 15% methanol and 85% acetone in two steps. The fixing solution and the fixing method will not damage the antigenicity of NMDAR, and in positive samples, obvious green fluorescent cells can be seen, and there is no red fluorescence quenching, and the co-localization of red fluorescence and green fluorescence can be observed using a fluorescence microscope.

The invention belongs to the field of medical instruments, and discloses a medical silica gel dressing fixing adhesive tape which comprises an adhesive tape body, and the adhesive tape body sequentially comprises a carrier layer, a silica gel adhesive layer and a stripping liner from outside to inside; the carrier layer is made of an elastic breathable material, and the silica gel adhesive layer is made of medical-grade organic silica gel; a plurality of first microcapsules are dispersed in the silica gel adhesive layer, the first microcapsules are drug-loaded microcapsules, and wall materials of the drug-loaded microcapsules are made of materials responding to the pH value, enzyme concentration or temperature change of a wound environment. Enzyme or ions are released after the second microcapsule is broken, the wall material of the first microcapsule is actively degraded, cascade response of'exudate increase-developing prompt-drug accelerated release 'is realized, a large amount of drugs are quickly released when the exudate appears, and infection or inflammation is effectively controlled.

Methods and devices for tissue graft fixation include fixation devices attached to an adjustable fixation loop of suture without compromising the graft or requiring additional material to complete the repair. Other fixation devices are attachable to an independent adjustable suture system. Adjustable fixation loops minimize slip / creep of the suture within the loop.

The utility model relates to a lumbar cistern drainage tube protection device which solves the problems that according to an existing lumbar cistern drainage fixing method, a patient feels uncomfortable, fixing and observation are inconvenient, and potential safety hazards exist due to the fact that a drainage tube is exposed outside. The device comprises a rectangular back side protection piece, the left side edge and the right side edge of the back side protection piece are connected with a first abdomen side protection piece and a second abdomen side protection piece through elastic bands respectively, and hook-and-loop fasteners matched with each other are correspondingly arranged on the front face of the first abdomen side protection piece and the back face of the second abdomen side protection piece. The upper end of the left side edge or the right side edge of the back side protection piece is fixedly connected with a drainage tube protection sleeve, the drainage tube protection sleeve wraps the outer side of the drainage tube, the drainage tube protection sleeve is provided with a zipper in the length direction, and the inner side and the outer side of the zipper are separated through an interlayer. The drainage tube fixing device is convenient to fix and observe, can effectively protect the drainage tube, prevents the drainage tube from being snapped or pulled out accidentally, and can prevent medical dressings from being used in a large range to fix the drainage tube and relieve symptoms such as skin allergy and pruritus of a patient through effective protection of the drainage tube.

The invention relates to the technical field of medical apparatus and instruments, and discloses a multi-dimensional adjustable oxygen supply fixing device and an oxygen supply fixing method.The multi-dimensional adjustable oxygen supply fixing device comprises a mounting frame, an adjusting mechanism and a breathing framework, the adjusting mechanism is arranged on the mounting frame and comprises a first supporting arm, a second supporting arm and a third supporting arm, and the first supporting arm, the second supporting arm and the third supporting arm are arranged on the mounting frame; the near end of the first support arm is connected with the mounting frame, the far end of the first support arm is rotatably connected to the near end of the second support arm, and the far end of the second support arm is rotatably connected to the near end of the third support arm; an oxygen supply mask is arranged in the breathing frame, and the breathing frame is hung at the far end of the third supporting arm through a fixing belt. By means of the design, the adjusting mechanism can provide part of supporting force, the gravity of the breathing frame is prevented from completely acting on the head of the pet, and therefore the problem that when the oxygen supply mask is fixed to the head of the pet, local oppression is prone to being caused to eyes is solved.

The application relates to a full-suture meniscus fixator, an implanting device and a suture fixing method, relates to the technical field of medical instruments, and comprises a first fixing part and a second fixing part, a positioning hole is arranged in the middle of the first fixing part, the same positioning holes are arranged at the two ends of the second fixing part, an integral suture is arranged on one side of the first fixing part, one end of the suture away from the first fixing part is sequentially threaded through the positioning hole on the first fixing part and the two positioning holes on the second fixing part, and the suture is wound around the suture between the first fixing part and the second fixing part. The application has the effects of reducing the operation time, reducing the operation difficulty, and improving the operation safety.

The invention discloses a stomach tube built-in type fixing device and a fixing method, and relates to the technical field of medical instruments, the stomach tube built-in type fixing device has the advantage of preventing a nasogastric tube from being separated from the body of a patient due to dragging, and the technical scheme is characterized in that the stomach tube built-in type fixing device comprises the nasogastric tube and is characterized in that the nasogastric tube is connected with a main fixing assembly for preventing the nasogastric tube from being separated from the body of the patient; the main fixing assembly comprises a connecting band, one end of the connecting band extends into the nostril located on one side, penetrates through the nasal foramen and extends out of the nostril located on the other side, and the two ends, located outside the two nostrils, of the connecting band are bound and fixed to form an annular structure; a main body base is fixed on the connecting band, the main body base is positioned on the front sides of fixed parts at two ends of the connecting band, a mounting seat is arranged beside the nasogastric tube, the nasogastric tube is fixed on the mounting seat, and the mounting seat is detachably and fixedly connected with the main body base through a clamping component.

This invention relates to the field of artificial ligament technology, specifically disclosing a method for securing the distal end of an artificial ligament. This method is mainly used for securing the traction suture to the distal fixation segment of the artificial ligament. The artificial ligament includes a free wire segment within the joint cavity, two braided segments located at both ends of the free wire segment, and two distal fixation segments located on opposite sides of the two braided segments. The fixation method mainly includes the following steps: placing the traction suture outside the distal fixation segment, and using a portion of the traction suture to create a covering portion, wherein the covering portion covers a portion of the two free strands of the traction suture outside the distal fixation segment. This invention ensures the structural integrity of the artificial ligament, the reliability of its function, and reduces the risk of inflammation in the patient.

The utility model discloses a male genital organ imaging device, which comprises an imaging device body and bandages, the imaging device body comprises an abdominal cavity shell and a genital organ shell, the abdominal cavity shell and the genital organ shell are integrally formed, two sides of the abdominal cavity shell are respectively provided with a bandage fixing device, and the bandage fixing devices are arranged in the abdominal cavity shell. The two ends of the bandage are fixed to the bandage fixing devices on the two sides of the abdominal cavity shell respectively. The magnetic resonance imaging device is reasonable in structural design, convenient to use and capable of facilitating supine magnetic resonance imaging of the genital organ and the prostate of a male, enables detection to be more comfortable and free of oppression, can be better attached to the genital organ of the male when being worn, enables imaging of the imaging device to be more convenient and accurate, and improves detection efficiency. Meanwhile, the imaging device can be fixed more firmly and is not prone to displacement due to the bandage fixing mode.