15results about How to "Trauma" patented technology

The invention provides an implantable medical device and a positioning method of a wireless energy transmission coil thereof, and the method comprises the steps: re-exciting a magnetic field through a transmitting coil in a process that the spatial position of the transmitting coil is adjusted; acquiring an induced electrical signal at the receiving coil corresponding to the process of re-exciting the magnetic field; and extracting slope characteristics from the acquired induction electric signals, and judging whether the receiving coil is aligned with the transmitting coil or not according to the slope characteristics. Sensors (such as a magnetoresistive sensor and an electronic compass) hardware do not need to be additionally arranged, the size of the implantation end is small, trauma to a patient in the implantation process is reduced, the coil alignment state is judged by extracting slope characteristics instead of judging the coil alignment state based on signal intensity (such as an absolute value of induced voltage), and the accuracy of the coil alignment state is improved. The judgment method based on the slope characteristics is higher in accuracy and better in anti-interference performance.

The utility model discloses a three -sided formula bone knife structure, include: connecting seat, joint, the joint fixed setting in the upper end of connecting seat, handle, the lower extreme of handle with the upper end of joint is detachably connected, three -sided formula cutter body, three -sided formula cutter body setting in the lower end of connecting seat. Through the application of the utility model, provide a three -sided formula bone knife structure for taking bone, especially applicable to the acquisition operation of double cortex ilium, it can be realized in one insertion process smoothly intercepts double cortex bone piece, shortens the operation time and reduces the trauma to the patient, can carry out multidirectional cutting in the narrow bone surface area through three -sided formula design, reduces the demand of repeatedly changing sword or using other turning cutter, further improves the operation efficiency.

The utility model relates to a diameter-variable blood vessel sheath structure, which solves a series of problems of large operative wound, incapability of intraoperative radiography and the like in the process of treating lower limb artery embolism by opening a Fogarty catheter to take thrombus. The device comprises an outer sheath, an inner sheath and a sheath core which are sequentially nested from outside to inside, the outer sheath comprises an outer sheath main body and an outer sheath base arranged at the near end of the outer sheath main body; the inner sheath comprises an inner sheath body, an inner sheath base is arranged at the near end of the inner sheath body and connected with a hemostasis valve, the far end of the inner sheath body is connected with a self-expansion covered stent sample structure with two open ends, and the length of the inner sheath is larger than that of the outer sheath. The sheath core comprises a sheath core body, a sheath core base is arranged at the near end of the sheath core body, a conical end with the outer diameter gradually reduced is arranged at the far end of the sheath core body, a middle hole for a guide wire to penetrate through is formed in the sheath core body, and the length of the sheath core is larger than that of the inner sheath. The utility model has the advantages of high effectiveness, high safety, strong adaptability, good adaptability, simple structure and convenient operation.

This invention discloses a pre-placed adjustable hernia repair patch and its preparation method, relating to the field of medical device technology. The patch body is a polypropylene woven mesh with a weight of less than 50 g / m². The polypropylene woven mesh has a double-layer gradient structure with different densities on both sides. This pre-placed adjustable hernia repair patch uses a double-layer gradient structure of the same woven mesh. The outer layer has large pores (80-300 μm) to facilitate fibroblast ingrowth and tissue fixation, while the inner layer has small pores (15-80 μm) to form a physical barrier, effectively inhibiting visceral adhesions. It addresses both fixation and anti-adhesion needs. Temporary fixation is achieved through sliding PLGA fixation pins, pre-drilled holes, and elastic rings. The fixation pins are available in various lengths, and the elastic rings enable temporary fixation and position adjustment. Blue marking lines facilitate directional identification, and barium sulfate contrast markers aid in intraoperative positioning and postoperative follow-up.

This invention relates to the field of interbody fusion device technology, specifically a 3D-printed porous interbody fusion device, comprising a fusion device body, a first filling hole penetrating through the middle of the fusion device body, and a plurality of internal reinforcing ribs evenly distributed circumferentially on the inner wall of the first filling hole. Based on the biomimetic mechanical design concept of the biomedical engineering industry, this interbody fusion device can break through the limitations of traditional fixed-width fusion devices, and can accurately match the anatomical width of the intervertebral space of different patients without the need for manual cutting and modification during surgery. It can fully adapt to the individualized needs of various heights, weights and disease segments, and fundamentally avoid the risks of endplate damage, infection and anchoring structure damage caused by cutting. After implantation, the self-locking component can achieve immediate rigid locking, completely blocking the reverse rebound path of the adjustment block. Combined with the multi-occlusal tooth structure, it forms a stable mechanical anchor, eliminating postoperative micromovement, displacement and slippage problems, and greatly improving the overall stability of the fusion device in the early stage of implantation.

This invention relates to an anastomosis device for gingival surgical incisions, comprising a main body structure, a gripping structure, several staple structures, a staple delivery structure, two power structures, and a staple separation structure. Its advantages lie in that, by rotating the gripping structure to the main body structure, the gripping structure drives the two power structures to move along the length of the main body structure, pressing the staple separation structure towards the staple structure, thus separating the staples; simultaneously, the power structures push the separated staple structures, causing them to move along the staple delivery structure. The staple delivery structure clamps both sides of the surgical incision and deforms the staple structures, separating them from the staple delivery structure, thereby compressing both sides of the surgical incision and achieving anastomosis. This eliminates the need for staples to puncture the gums, reducing trauma, and is simple and convenient to operate. It allows for rapid suturing of surgical incisions, and the protruding staple delivery structure allows for anastomosis of gums deep within the oral cavity.

This invention discloses a photocurable fixation auxiliary device for ingrown toenail correction, comprising an ingrown toenail body and a flexible rectangular frame. The correction mechanism includes an Ω-shaped correction wire, with hooks fixed to both ends of the Ω-shaped correction wire to hook onto the side edge of the ingrown toenail body. Each hook has an anti-slip strip fixed to its inner front surface. A curing pen is provided on the top of the flexible rectangular frame. This invention, through the cooperation of the Ω-shaped correction wire, auxiliary wire, and hooks, can form a central bridging fulcrum and bilateral symmetrical ring arms on the surface of the ingrown toenail body, thereby achieving three-dimensional correction force on the ingrown toenail body in an upward, outward, and forward direction. This addresses the growth trajectory of the ingrown toenail body from the root cause, with minimal trauma and a low recurrence rate. Simultaneously, through the cooperation of the curing pen, conical shell, and flexible rectangular frame, the photocurable resin inside the flexible rectangular frame can be photocured, ensuring that the entire ingrown toenail correction device remains securely fixed after installation.

This invention discloses an electrode implantation tool. The distal end of the electrode is provided with a fixing component. The implantation tool includes an outer sheath and an inner sheath. The inner sheath includes an inner sheath tube and a first handle. The outer sheath includes an outer sheath tube and a second handle. The inner sheath tube can be inserted into the outer sheath tube. The first handle can be locked within the second handle. The second handle has at least a first locking position and a second locking position in the axial direction, allowing the first handle to move from the first locking position to the second locking position. The inner diameter of the inner sheath tube is smaller than the outer diameter of the fixing component, and the inner diameter of the outer sheath tube is larger than the outer diameter of the fixing component. Other parts of the electrode, excluding the fixing component, can be inserted into the inner sheath tube. This invention allows for a single puncture of the electrode and implantation tool near the target nerve tissue. After successful testing, the electrode is directly released and fixed, ensuring consistency between the test point and the implantation point.

The application discloses a set of bile acid marker combinations, kits and applications for female sarcopenia patients with liver fibrosis risk stratification. The bile acid marker combinations are GCA, GDCA, GCDCA, TDCA, TDCA-3S, TCDCA, GLCA-3S and GDCA-3S in serum or plasma. Through quality control, difference screening and multi-model verification, a joint scoring model is constructed to distinguish the basic bile acid metabolism type and the liver fibrosis susceptible type subgroup. The experimental results show that the AUC of the model verification queue reaches 0.982; the median of the susceptible type subgroup LSM is 6.0 kPa, and the high-risk proportion is 20.7%, which is significantly higher than that of the basic type. The application can realize early and accurate stratification of the liver fibrosis risk of female sarcopenia patients, and is especially suitable for clinical screening and risk assessment.

The utility model relates to shearing force technical field discloses a kind of adjustable synovial fold shearing force, including handle one, the one end of handle one is fixedly connected with turning plate, the inside rotation of turning plate is connected with handle two, reset component is provided between handle one and handle two, the reset component is used to drive handle two reset, the one end of turning plate is rotatably connected with extension rod, the one end of extension rod is rotatably connected with hook knife and segmentation knife.The utility model in which, first through small diameter, pipe-like shearing force with scale design, allow to enter inside through very small incision, realize minimally invasive treatment, greatly reduce the trauma of operation, while not only reduce the complexity of doctor operation, can also be flexibly operated in narrow operation space, facilitate hooking synovial fold and cutting in operation, in addition, the shearing force simple structure is lower in cost, effectively reduce medical cost.

The utility model provides an assembled brachial intramedullary nail plate, and belongs to the technical field of medical instruments. The assembly type humeral intramedullary nail plate comprises a bone fracture plate, an intramedullary nail, an intramedullary fixing nail and a plate locking nail, the inner side wall of the bone fracture plate conforms to the side wall curve of a greater tuberosity of a humeral head, the intramedullary nail is in a bent shape conforming to the shape of a humeral marrow cavity, a middle locking hole is formed in the middle of the bone fracture plate, and the plate locking nail is arranged in the middle of the bone fracture plate. The upper end of the intramedullary nail is located on the inner side of the middle locking hole, the threaded part of the intramedullary fixing nail penetrates through the middle locking hole and is matched with a threaded nail hole in the upper end of the intramedullary nail, multiple sets of edge locking holes are formed in the circumferential direction of the bone fracture plate, and the plate locking nail penetrates through the edge locking holes to fix the bone fracture plate to the greater tuberosity of the humerus head. According to the assembly type humeral intramedullary nail plate, after an intramedullary nail is implanted, the bone fracture plate is installed at the upper end of the intramedullary nail, trauma is small, operation is easy, and fixation is stable.

The catheter comprises a catheter body, the far end of the catheter body is provided with a front slope opening, part of the catheter wall of the edge of a far-end catheter opening at the opening extends outwards to form a tongue-shaped tip, and the tongue-shaped tip is arranged opposite to the near-end catheter opening at the front slope opening of the catheter body and is integrally formed with the catheter body; a water-drop-shaped Murphy hole is formed in the side wall of the tongue-shaped tip side at the far end of the catheter body. According to the catheter for the tracheal intubation, the tongue-shaped tip and the catheter body are designed to be of the integrally-formed structure, and the improved drop-shaped Murphy hole design is adopted, so that the catheter is more suitable for the scene of intubation through a center line, such as intubation under a video laryngoscope and intubation through a laryngeal mask, airway injuries caused by intubation are reduced, and the tracheal intubation effect is improved. The trachea cannula has higher safety, reliability and operation efficiency in airway protection and difficult airway management, and is suitable for various different types of trachea cannulas of adults and children; and the guide pipe is simple in manufacturing process and convenient for mass production and manufacturing.

The application discloses a kind of multi-channel independent partition active drainage tube, belong to medical instrument technical field.Drainage tube includes catheter main body, intra-abdominal bifurcated portion, abdominal cavity outside bifurcated portion, drop flushing component, negative pressure drainage component and shunt controller.Intra-abdominal bifurcated portion includes four branch pipes of coaxial double-cannula structure;Four independent longitudinal channels are arranged in catheter main body, four intra-abdominal branch pipes and four extracorporeal branch pipes are communicated one by one and isolated from each other respectively.The application realizes "one pipe four areas" and accurate partition control, and medical staff can intuitively monitor the state of each partition through the pressure indicator of shunt controller, and manually intervene when necessary by operating independent regulating valve and drop flushing component, to realize active flushing suction and online backwashing to prevent blockage.The application can effectively prevent and treat multiple anastomotic fistula after complex operation, avoid the risk of pressure or pipe blockage between different areas, and reduce the rate of secondary operation.

This invention discloses a biomarker for detecting placenta accreta, namely the MI R323B gene. Reduced expression of MI R323B in subject samples is an indicator of placenta accreta. Furthermore, the application of MI R323B as a diagnostic biomarker for placenta accreta in the preparation of reagents for diagnosing placenta accreta is disclosed. Results show that the MI R323B gene expression level is downregulated in PAS patients, with high diagnostic accuracy. MI R323B plays an important role in the diagnosis and treatment of placenta accreta and can be used to prepare drugs for treating placenta accreta or related diseases.

The utility model provides an auxiliary device for placing a steel plate in the middle, which comprises double-joint seaming pliers, jaws of the two double-joint seaming pliers respectively clamp bone cortex, and the tail end of a handle of any double-joint seaming pliers is provided with a zigzag locker. Any pair of double-joint nipping pliers is provided with middle lock catches which are arranged at intervals in the length direction of the double-joint nipping pliers, sleeves are arranged on the two middle lock catches respectively, circular rings are arranged at the ends, away from the double-joint nipping pliers, of the two sleeves, and a third sleeve is arranged in the two circular rings jointly; the third sleeves are located on the center line of the double-joint seaming pliers, the other ends of the two third sleeves are both installed on the center line of the long axis of the steel plate, and the steel plate is placed in the middle of a small incision of a patient. According to the utility model, the jaws of the two double-joint seaming forceps are respectively used for clamping the bone cortex, so that the steel plate can be accurately placed in the middle through a small incision, the trauma is smaller, the bleeding is less, the operation time is shortened, the operation success rate is improved, and the perspective frequency is greatly reduced.