32 results about "Fixation method" patented technology

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.

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 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.

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.

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 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.

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.

This invention belongs to the field of hard tissue pathology slide preparation technology and discloses an embedding device for easy fixation of hard tissue. It includes an embedding layer with a curling deformation function, and several fixing units are provided on one side of the embedding layer. When the embedding layer is curled into a ring, the fixing units surround the hard tissue and compress and fix it. This invention uses the curling deformation of the embedding layer to drive the fixing units to distribute around the hard tissue, compressing and fixing it. The embedding layer is placed in an embedding bottle to maintain its curled shape. This fixation method is simple and convenient, and can fix biological bone tissue in the desired position and direction. The embedding layer and fixing units are made of polypropylene, which has stable chemical properties, is not prone to chemical reaction with the embedding liquid, and has relatively soft physical properties, making it less likely to cause defects in the embedded block. It also does not affect subsequent cutting, deplasticizing, or other processes.

The application relates to the field of medical devices, and discloses a delivery system installation method, a fixing clamp, a leaflet fixing method and a delivery system. The delivery system installation method comprises the following steps: the first end of a first control wire is inserted into a first opening and then out of a second opening, the third end of a second control wire is inserted into a second opening of an anchoring tube and then out of the first opening, the third end of the second control wire is pulled to make the fourth end of the second control wire enter a hollow cavity from the second opening, and the fourth end is ensured to abut against the inner wall of the anchoring tube at the first opening; the distal end of a core wire is inserted into the proximal end of the anchoring tube and axially moves along the hollow cavity until the distal end of the core wire is out of the distal end of the anchoring tube and the second end at the second opening is pressed against the inner wall of the anchoring tube, and the fourth end at the first opening is pressed against the inner wall of the anchoring tube; and the distal end of the core wire out of the anchoring tube is connected with the fixing clamp.

The invention discloses a fixing method for a medical anesthesia pain-relieving pump, and relates to the field of medical instruments, and the fixing method comprises the following steps: a1, when a device main body is fixed on an infusion support, a placing disc can be fixed on the infusion support by using a clamping plate I, a clamping plate II, a screw rod I and a nut; during use, the pain relieving pump can be limited and fixed by using the fixing mechanism I or the fixing mechanism II according to actual requirements, so that the pain relieving pump is prevented from rolling to pull an injection part of a patient to cause discomfort of the patient; meanwhile, when the device is installed, the device body can be fixed to an infusion support on one side of a sickbed through a first clamping plate, a second clamping plate, a first screw and a nut, or the device body is fixed to a sickbed guardrail through a first connecting frame, a supporting plate, a first spring and a first telescopic rod, and therefore a user can conveniently select a proper installation mode according to actual needs; installation is convenient, and applicability is high.

A fixation member (108), an orthopedic device using a fixation member, or a method for using the same includes fastener elements (142) 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 invention relates to a novel intraocular lens (IOL) fixation device, comprising an implant having an anchoring portion for anchoring within the eyeball wall; a docking portion pre-connected to one end of the implant and connected to the loop of the IOL; and a traction portion pre-connected to the other end of the implant for pulling the implant from the lateral aspect of the sclera to a target position. This invention achieves "knotless" fixation, fundamentally avoiding suture-related complications. Compared to traditional transscleral suture fixation, this invention uses a mechanical anchoring method where a polymethyl methacrylate rod is heat-fused to form a flange, completely eliminating the need for knots on the scleral surface. This eliminates the risks of scleral ulceration, endophthalmitis, chronic inflammation, and late-stage lens dislocation caused by suture wear, corrosion, and exposure, significantly improving long-term stability.

This invention belongs to the field of medical and nursing technology, specifically disclosing a catheter fixation frame for neurosurgical care. It includes a support plate with a guide clamp on its lower wall and two rotating arm assemblies rotatably mounted on its upper wall. Each rotating arm assembly has a Bernoulli suction cup at its end. A control cylinder is mounted on the upper rotating arm assembly. The two rotating arm assemblies are connected to the outer wall of the control cylinder via ventilation tube one and ventilation tube two, respectively. An air inlet pipe is located at the upper end of the control cylinder. The control cylinder contains a pneumatic alternating sealing mechanism, which includes a power transmission component and a sealing transmission component. This invention utilizes airflow into the control cylinder to achieve alternating ventilation through ventilation tube one and ventilation tube two via the pneumatic alternating sealing mechanism. This allows the two sets of Bernoulli suction cups to alternately adhere to the patient's skin, effectively guiding and fixing the catheter, preventing tangling and bending, and solving the problems of skin discomfort and catheter collapse caused by traditional fixation methods.

This invention relates to the field of medical device technology, providing a leg fixation bracket, fixation method, and medical device for knee replacement surgery. The bracket includes a clamping unit and a universal adjustment unit. The universal adjustment unit includes a first ball-head base fixed to the clamping unit, a second ball-head base for connecting a Kirschner wire guide, at least one adjusting rod connecting the two ball-head bases, and a locking mechanism for simultaneously locking the relative positions of the ball-head bases and the adjusting rod. The fixation method includes: fixing the clamping unit to the operating table side rail; releasing the locking mechanism and adjusting the posture to align the Kirschner wire guide with a predetermined insertion point. This invention achieves simultaneous multi-point locking through a single locking mechanism, making operation simple and locking reliable; the clamping unit can clamp bidirectionally to adapt to different operating table side rails; the overall purely mechanical structure requires no electrical components, ensuring high safety and effectively improving the stability and efficiency of knee replacement surgery.

This utility model relates to the field of dental implant technology, and in particular to a high-precision guide plate for removable dental implant implantation, comprising a guide plate body, a positioning component, and an opening component; the upper end of the guide plate body is equipped with an opening component for preventing excessive drilling without repeated measurements, and the lower end of the guide plate body is equipped with a positioning component for rapid adsorption and alignment, preventing displacement of traditional guide plates due to soft tissue deformation. The positioning component includes patches, and two sets of patches are symmetrically arranged at the lower end of the guide plate body for pre-attaching to the patient's mouth. Multiple sets of neodymium magnets for use in patients with insufficient bone content or who fear invasive surgery are sequentially installed from left to right on the upper surface of the patches. A metal ring magnetically connected to the neodymium magnets is provided at the center of the lower surface of the guide plate body. This utility model provides a non-invasive fixation method by utilizing neodymium magnets, reducing the patient's fear and physical burden, and is also applicable to more types of cases.

This invention provides an interventional device fixation device, relating to the field of interventional medical device technology. The fixation device includes: a hollow nail, a locking element, and a sealing sleeve; the locking element is connected to one end of the hollow nail, and both the locking element and the hollow nail have an axially penetrating installation channel for clearance fitting and sliding insertion of the interventional diagnostic and therapeutic device; the sealing sleeve is installed between the hollow nail and the locking element, and the locking element has an inner ring pressing surface that radially compresses the sealing sleeve to compress it radially between the locking element and the interventional diagnostic and therapeutic device. The sealing effect does not depend on the initial dimensional matching between the sealing sleeve and the interventional device, and it does not require the locking element to cover and seal the hollow nail, making it compatible with interventional diagnostic and therapeutic devices of different outer diameters. It overcomes the technical paradox of mutual constraints between sealing performance and operational smoothness, achieving a safe, lightweight, and reusable interventional device fixation method while ensuring intracranial sterility and pressure stability.

Methods and apparatus for tissue graft fixation include fixation devices that are attached to adjustable fixation loops of sutures without damaging the graft or requiring additional materials for repair. Other fixation devices may be attached to independent adjustable suture systems. The adjustable fixation loops minimize slippage / peristalsis of the sutures within the loop.

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.

This invention discloses an insertion-type catheter fixation device, belonging to the field of medical tool technology. It solves the problem that existing fixation devices cannot prevent changes in the insertion depth of the catheter due to patient movement or bending at joints. The fixation device includes a base, a top cover, and a compression member. The top cover is installed on the base and covers the opening at the top of the base. The compression member is installed inside the base. A protective component is installed at the end of the base. The protective component protects both ends of the base and limits the insertion depth of the catheter, preventing changes in the insertion depth due to patient movement or bending at joints. An installation mechanism is installed at the bottom of the base to assist in the stable fixation of the base and ensure the stability of the fixation device during use.

The invention discloses a method for fixing a mouse craniocerebral sample, which makes up the shortages of paraformaldehyde fixation through the excellent ability of tannic acid to fix a phospholipid membrane. According to the method, lipid structures such as cell membranes and organelle membranes are not dissolved any more during ethanol dehydration, so that the full form of cells is kept, the whole brain parenchyma is stable in volume, and remarkable shrinkage or embrittlement is avoided in the dehydration process, so that the whole brain parenchyma is tightly attached to the inner wall of the skull and the surface of the brain all the time; the integrity of the blood vessel wall depends on the stability of the membrane structure of endothelial cells and smooth muscle cells, the maintenance of the blood vessel form is ensured, and the space position of the surrounding tissue is not changed, so that the walking of the whole blood vessel network and cranial nerves can be kept in situ in a three-dimensional space.

This utility model relates to the field of restraint equipment technology, specifically an abdominal restraint tool, including an abdominal pad with an abdominal restraint strap installed on it. The abdominal restraint strap is used to secure the patient's waist, and the abdominal pad covers the patient's abdomen. One side of the abdominal restraint strap is connected to a leg pad via a connecting strap, and a leg restraint strap is installed on the leg pad, which covers the patient's groin. The bottom surface of the abdominal pad is planar. In this abdominal restraint tool, the abdominal restraint strap is secured to the patient's waist, and the leg restraint strap is secured to the patient's groin, both of which are secured to the operating table. This multi-point fixation method, combined with the support of the abdominal and leg pads, can stably fix the patient's body to the operating table or examination equipment, effectively preventing the patient's movement from affecting the operation or examination results during surgery, rehabilitation training, or special examinations, thus providing a reliable guarantee for the smooth progress of medical work.

This utility model discloses a joint fixation structure after rotator cuff injury surgery, including a fixation plate and a vertical plate fixedly connected to one side of the fixation plate. A waist strip is fixedly connected to one side of the vertical plate, and a second ring buckle is movably connected to one end of the vertical plate via a mounting bolt. A shoulder strap is movably connected to the other end of the vertical plate via a mounting bolt. An arm placement block is provided at the top of the fixation plate. Two second fixing straps are fixedly connected to the top of the arm placement block, and two third ring buckles are fixedly connected to one side of the arm placement block. Two lifting devices for adjusting the height of the arm placement block are provided at the bottom of the arm placement block, and a translation device for moving the arm placement block is provided at the bottom of the lifting devices. This utility model, a joint fixation structure after rotator cuff injury surgery, solves the problem of the lack of flexibility and adjustability of fixation methods, and facilitates the postoperative recovery of patients.

This invention discloses a fixing device and method for controlling the accuracy of concentric reducers, belonging to the technical field of concentric reducer pipe fittings. It addresses the problem of inconvenient operation and poor accuracy in controlling the concentricity of the two ends of a sheet metal part after layout processing and butt welding to form a reducing pipe fitting. The device includes a worktable, a placement frame fixed to the top surface of the worktable, a placement cylinder rotatably connected to the top surface of the worktable below the placement frame, a conical block fixed at the center of the placement cylinder, and a positioning mechanism located on the inner wall of the placement cylinder around the conical block. This invention uses the conical block to place two aligned and assembled samples, and the positioning mechanism to clamp the bottom outer surface of the samples. An elastic clamping block provides elastic clamping to the top outer surface of the samples, and a calibration sleeve calibrates the concentricity of the top center of the samples. Through fine-tuning by the control mechanism, the concentricity accuracy of the smaller end of the sample and the calibration sleeve is further improved.

This invention discloses a method for fixing a drainage device and a drainage device that facilitates fixation, relating to the field of medical device technology. A fixing line is pre-set at the edge of the drainage opening; one end of the drainage tube with a drainage hole is placed at the drainage position through the drainage opening; a buckle is fastened onto the drainage tube, with an arc-shaped locking block on the inner wall of the buckle embedded in a groove on the outer wall of the drainage tube; the fixing line is knotted to sew the drainage opening, ensuring the drainage opening is tightly against the outer wall of the drainage tube; the end of the fixing line is knotted after passing through a through hole on the ear plate, and after knotting, the fixing line is taut, tightening the buckle. This invention utilizes the connection between the arc-shaped locking block and the groove to firmly fix the buckle onto the drainage tube, allowing the fixing line to be tied simply by passing through the through hole on the ear plate. This not only provides a more reliable fixation of the drainage tube, facilitating the normal drainage process, but also simplifies and speeds up the fixing process, significantly reducing fixation difficulty and saving time.

The application discloses a dorsal root ganglion in vivo imaging fixing device, a fixing method and an imaging system. It relates to the field of neuroscientific experimental equipment. The fixing device comprises a base, a first clamping piece and a second clamping piece. The base has a receiving table. The first clamping piece is detachably installed on the base. The second clamping piece is slidably arranged on the first clamping piece. The two clamping pieces clamp the target spine. The second clamping piece is provided with a recess structure configured to accommodate a filling material, so as to bond and fix the first clamping piece, the second clamping piece and the target spine. The scheme accommodates the filling material through the recess structure, forms a bonding layer on the basis of the first clamping piece and the second clamping piece, realizes double fixing, enables the observation window to resist pulling and struggling of animals for a long time without falling off, and meets the imaging requirement of the dorsal root ganglion in a multiple and long-time awake state.

This invention discloses a fixation table for zebrafish microsurgery, belonging to the field of biological experimental instrument technology. The fixation table includes a culture device, a silicone fish sleeve, a compression ring, a universal ball joint mechanism, and a connector. The silicone fish sleeve is a hollow, flexible, contoured sleeve with a compression ring at its expanded end. By rotating the compression ring, the flexible wall of the silicone fish sleeve contracts inwards uniformly, wrapping and fixing the zebrafish's body in a non-invasive manner. The locking end of the fish sleeve exposes the fish's head, facilitating surgical operations. The universal ball joint mechanism connects to the compression ring via the connector, enabling rapid adjustment and locking of the fish body at any angle in three-dimensional space, meeting the needs of various surgical positions such as upright, inverted, and lateral placement. This invention solves the problems of easy slippage, uneven pressure, difficulty in body position adjustment, and cumbersome operation in existing zebrafish fixation methods, and is suitable for various delicate microsurgeries such as mandibular bone injuries, intraocular injections, and craniotomy.

This utility model discloses a surgical wound drainage and medication application device, belonging to the field of medical device technology. The device includes a disinfectant patch, and further includes: an adhesive layer disposed at the bottom of the disinfectant patch, with release paper at the bottom of the adhesive layer; binding straps fixed to both sides of the disinfectant patch; a through hole at the top of the disinfectant patch; and a U-shaped plate, a Velcro strap, and a Velcro hook fixedly connected to the top of the disinfectant patch. This utility model, through the cooperation of the U-shaped plate, Velcro strap, Velcro hook, and fixing mechanism, can fix the drainage tube twice. This double-fixation method ensures that even if one set of fixation falls off, the drainage tube can still be secured, reducing the risk of displacement or detachment of the drainage tube due to patient movement or changes in body position, further improving the stability of the drainage and medication application.

The invention provides a skin fixing device which can easily mount a skin on a fixed member and can improve the clamping force between the skin and the fixed member. The skin fixing device (K) has an insertion member (20) connected to the rear-side skin (T2), and a holding member (10) connected to the front-side skin (T1) and into which the insertion member (20) is inserted. The insertion portion (22) has an extension portion (24) extending in an insertion direction in which the insertion portion (22) is inserted into the holding portion (12). The holding section (12) has: a protruding section (16) that protrudes in an intersecting direction that intersects the insertion direction so as to restrict the rotation of the insertion section (22); and an insertion opening (19) into which the insertion section (22) is inserted inside the holding section (12). The front end part (24a) of the extending part (24) in the insertion direction extends linearly and abuts against the protruding part (16) from the intersecting direction. The width (H1) of the tip section (24a) is smaller than the width (H2) of the insertion opening (19) in the intersecting direction.

The application discloses a PICC catheter tip precise navigation and fixation method and system based on real-time electrocardiogram positioning, realizes high-precision positioning and safe fixation of the catheter tip through multi-modal data fusion and deep learning technology, and comprises the following steps: collecting intracavity electrocardio signals (ECG) through a built-in electrode of the catheter, combining with optical fiber sensor to obtain blood vessel wall contact pressure and temperature data; adopting an improved wavelet threshold algorithm to dynamically suppress motion artifacts and enhance P wave characteristics; inputting the preprocessed ECG signals into a time-space feature fusion Transformer model, using a time attention layer to analyze P wave time sequence changes, a space attention layer to integrate multi-lead space distribution characteristics, and combining with preoperative blood vessel dissection data to optimize positioning accuracy; fusing the ECG positioning results and the optical fiber sensing data through Kalman filtering to generate three-dimensional position information of the catheter tip, and realizing real-time navigation in an augmented reality interface; when the P wave amplitude reaches the CAJ threshold, the contact pressure is safe and there is no abnormal temperature, a shape memory alloy (SMA) fixation ring is triggered to contract, and precise fixation is realized. The application solves the problems that the traditional method depends on X-rays and has poor anti-interference performance, has the advantages of no radiation, high real-time performance and self-adaptive blood vessel deformation, and is suitable for clinical P catheter placement.