26results 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.

The present invention discloses a minimally invasive implantable heart assist device, comprising: a blood pump positioning bracket, the blood pump positioning bracket comprising a deformable cylinder, a nut, and a central cylinder; a bracket conveyor, the bracket conveyor comprising an outer cylinder, an inner cylinder assembly, and a locking structure, the other end of the outer cylinder and the inner cylinder assembly is provided with a cylindrical receiving groove structure for accommodating the deformable cylinder and the central cylinder; the outer diameter of the deformable cylinder increases when the outer cylinder and the inner cylinder assembly are in an unlocked state and the outer cylinder is separated from the inner cylinder assembly; a blood pump, the blood pump is provided with a blood inlet placed in the central cylinder and a blood vessel for connecting to the aorta; a positioning device, the positioning device is used to connect and position the blood pump and the blood pump positioning bracket. It can quickly realize the implantation of the blood pump through minimally invasive surgery, solving the problems of high surgical skills and great trauma to patients.

The utility model relates to the technical field of medical instruments, and discloses a channel screw positioning instrument which comprises a positioner main body, a guide sleeve, a locking mechanism, an adapter and an adjusting device, the positioner main body is of an arc-shaped structure, and the top end of the positioner main body is connected with the adjusting device. The positioner main body and the adjusting device are made of medical grade stainless steel or polymer materials; the guide sleeve is in sliding fit with the adjusting device and slides in the length direction of the adjusting device, and an observation opening is formed in the guide sleeve and used for facilitating observation of a doctor and guiding insertion of a screw; sliding blocks are connected to the front side and the rear side of the middle of the guide sleeve correspondingly and slide in the second sliding grooves. The channel screw positioning instrument is easy and convenient to operate, the fracture part is stabilized by placing the screws in the white channel of the pelvis and the hip, and fracture healing and functional recovery are promoted; compared with a traditional operation method, the technology has the advantages of being small in trauma, fast in recovery, short in operation time and the like.

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.

The invention belongs to the technical field of medicines, and relates to application of polydocanol in preparation of a medicine for treating lymphatic leakage through a drainage tube or direct puncture application, and the polydocanol is a polydocanol foaming agent. The poly-docanol foaming agent is prepared by rapidly sucking and mixing a liquid preparation containing 5-30 mg of poly-docanol per milliliter and sterile air for 30 times through a three-way cock according to the volume ratio of 1: (1-5), wherein the volume ratio of the liquid preparation to the sterile air is 1: (1-5); the lymphatic leakage is armpit lymphatic leakage caused after breast cancer operation. The invention also provides a treatment method for applying the polydocanol in the lymphatic leakage patient and a medicine for treating the lymphatic leakage, and the medicine comprises the polydocanol and pharmaceutically acceptable auxiliary materials. The method has the advantages of small trauma, simplicity and convenience in operation, high safety, short treatment period, quick response and the like.

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 invention discloses a self-locking arc-shaped nail, and relates to the field of fracture fixing nails, the self-locking arc-shaped nail comprises a middle connecting end comprising a plurality of connecting joints, the axial head and tail ends of the connecting joints are respectively provided with a hinge shaft and a hinge hole, and the connecting joints are axially provided with wire passing holes in a penetrating manner; the arc screw thread end is connected with one end of the middle connecting end, and threads are arranged on the peripheral surface of the arc screw thread end; the front-end outer sleeve is connected with the other end of the middle connecting end, a pull wire is arranged in the front-end outer sleeve, one end of the pull wire is connected with an inner shrinkage pipe arranged in the front-end outer sleeve, the other end of the pull wire penetrates through a wire passing hole of the connecting joint to be connected with the threaded end of the arc screw, and the inner shrinkage pipe is matched with the front-end outer sleeve; according to the self-locking arc-shaped nail, the whole arc-shaped nail is driven by the thread end of the arc-shaped nail to rotate and advance along the arc-shaped nail channel, after the arc-shaped nail reaches a preset position, the thread and the front-end outer sleeve lock and fix a pull wire, and finally the arc-shaped nail is bent, locked and fixed along the arc-shaped channel.

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 application discloses a windowed guide plate and relates to the medical field, which comprises a top plate and a side plate, the top plate and the side plate are integrally formed into a guide plate, a punching head is integrally formed at the top of the top plate, a positioning head is integrally formed on the outer side of the side plate, and a window is formed on the outer side of the side plate. The application significantly improves the accuracy of the implanting process by using the digital technology assisted guide plate implanting, and reduces surgical trauma. The application adopts a minimally invasive incision, does not need to cut the gum in a large area, has a short operation time and small trauma, and has faster postoperative recovery. The application is suitable for complex diseases such as alveolar bone defect, abnormal position of nerves and blood vessels and multiple implanting requirements, can improve the success rate, guides the drill bit by means of the punching of the guide hole, fixes the guide plate in the mouth of a patient in advance by means of the punching of the positioning hole and the use of a screw, avoids the change of the position of the guide plate in the punching process, can accurately control the position, angle and depth of the implant, and reduces human error.

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 invention discloses an intravascular stent of a passive brain-computer interface system. The intravascular stent comprises a stent net, an intracranial microelectrode, a wireless charging and communication coil, an intracranial sensor unit and a stent circuit, the bracket net is an expandable support frame; the intracranial microelectrode and the intracranial sensor unit are arranged on the stent net, and the intracranial microelectrode and the intracranial sensor unit are in contact with a blood vessel wall under the condition that the stent net is unfolded and is in contact with the blood vessel wall; the wireless charging and communication coil is an expandable coil attached to the stent net and is used for receiving an electromagnetic signal sent by external equipment in a state of being expanded along with the stent net and generating a working electric signal of the stent circuit according to the electromagnetic signal; the support circuit is electrically connected with the intracranial microelectrode and the intracranial sensor unit and used for generating electroencephalogram signals used for analyzing the brain state according to brain physiological signals obtained by the intracranial microelectrode and the intracranial sensor unit. According to the embodiment of the invention, an intracranial electroencephalogram signal can be collected in a low-risk manner.

The application provides a rapid detection microneedle patch technology of anti-mutant citrullinated vimentin antibody in a trace blood sample and a preparation method thereof, and belongs to the technical field of medical detection. The needle body of the microneedle patch is coated with mutant citrullinated vimentin and blocked with bovine serum albumin, and the prepared microneedle patch can rapidly and quantitatively detect the anti-mutant citrullinated vimentin antibody in a trace blood sample. The preparation method of the microneedle patch is simple, the cost is controllable, the microneedle patch has the characteristics of high sensitivity and high accuracy of traditional blood tests, the required blood sample amount is greatly reduced compared with traditional blood tests, and the microneedle patch has a good market application prospect.

The present invention relates to the field of medical device technology, and in particular to an ultrasonic implant drill for maxillary compact bone and an ultrasonic implant assembly. The ultrasonic implant drill for maxillary compact bone comprises a drill head, a neck and an ultrasonic bone knife handle connection part which are connected end to end in sequence; it also comprises a liquid passage cavity, and the liquid passage cavity extends from the handle connection end of the ultrasonic bone knife handle connection part through the neck to the top of the drill head; the outer diameter of the drill head gradually increases from the end away from the neck to the end close to the neck, and the cross-section of the drill head is in the shape of a polygonal star; the drill head is provided with a plurality of blade edges in its extension direction, and chip grooves are respectively provided between each adjacent blade edge, and the tissue contact end of the blade edge is provided with a lateral cutting edge; the top of the drill head is provided with a liquid outlet connected to the liquid passage cavity. The present application can improve cutting efficiency, protect important soft tissues such as nerves and blood vessels, can be internally cooled to improve the cooling effect, and can lift the maxillary sinus mucosa.

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 present invention discloses a syringe auxiliary tool, the syringe includes a barrel assembly, the syringe auxiliary tool includes a sleeve and a vibration device, the sleeve has a sleeve hole for being sleeved on the outside of the extrusion end of the barrel assembly and open at both ends, the sleeve has a ring-shaped accommodating interlayer; the vibration device is assembled in the accommodating interlayer. Through the design of the sleeve and the vibration device, the syringe auxiliary tool is assembled on the outside of the extrusion end of the barrel assembly of the syringe, the vibration device is started, the syringe auxiliary tool is driven to vibrate by the vibration of the vibration device, and the syringe is shaken by the vibration of the syringe auxiliary tool, so as to achieve a suspension state during the injection of the suspension, avoid precipitation and stratification, and improve the comfort during the injection. In addition, the number of vibration devices can be determined according to actual conditions.

The application relates to a variable-rigidity nested continuum surgical actuator for establishing a surgical channel in soft tissue and an operating method, and belongs to the technical field of medical instruments. The actuator comprises a terminal operation module, which comprises an inner-layer continuum single section, an inner-layer continuum end section, an outer-layer continuum single section and an outer-layer continuum end section. A plurality of inner-layer continuum single sections are connected in series and connected with the inner-layer continuum end section through a second driving line to form an inner-layer continuum. A plurality of outer-layer continuum single sections are connected in series and connected with the outer-layer continuum end section through a first driving line to form an outer-layer continuum. The outer-layer continuum is nested on the outside of the inner-layer continuum, and one side of the inner-layer continuum end section is provided with a pushing-in mechanism. A sensing module is connected with the terminal operation module and a linear driving module. The linear driving module is connected with a rotary adjusting module. Through alternating rigidity transformation of the inner and outer double-layer continuums, mutual constraint, coordinated progression and the like, an arbitrary-shaped path is formed to bypass important organs in substantial soft tissue.

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 invention discloses an orthopedic skin and soft tissue bone transport device, which is characterized by comprising: an internal fixation steel plate, a movable slider, a first gear, a second gear, a chain, a support rod, a rotating handle, a first fixing screw, and a second fixing screw; the internal fixation steel plate comprises a steel plate head, a steel plate body, a steel plate tail, a first threaded hole, a sliding track, a second threaded hole, and a chain track; the slider comprises a metal block, a connecting ear, and a third threaded hole; the support rod comprises a connecting shaft, a ratchet, and a pawl; the invention can slowly pull the cut free bone segment during the bone transport operation, and at the same time, the device causes less trauma to the patient's skin and soft tissue, can be transported at a fixed distance, and can be directly fixed on the internal fixation steel plate with screws after the transport is completed, which completely solves the problems of external fixation wearing time and skin and soft tissue cutting, and is easy to operate and has a stable structure.

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.