102 results about "Local anesthesia" patented technology

The invention belongs to the technical field of medicine preparation, and relates to PLGA gel used as an injectable long-acting local anesthesia medicine as well as application and a preparation method of the PLGA gel. The PLGA gel comprises the PLGA gel which is loaded with superparamagnetic Fe3O4 particles and a small molecule local anesthetic, namely, levobupivacaine (Levobupi). The PLGA hydrogel containing Fe3O4 and levobupivacaine can be used as an injectable long-acting local anesthesia medicine, and the hydrogel can be changed from liquid to solid after being injected into a living body, so that the release efficiency of the medicine is slowed down, and the local action time of the hydrogel is prolonged. In addition, the hydrogel can undergo a phase change from a solid state to a liquid state under magnetocaloric therapy (MHT), increase pore diameter, promote release of levobupivacaine, and provide enhanced pain relief in vivo. Compared with the prior art, the invention has the beneficial effects of simple synthesis and easy industrialization. The drug release rate is adjusted through the phase change of the hydrogel, super-long-acting analgesia is realized, and the analgesia time is gt; 20 days. The gel can be loaded with various local anesthesia drugs such as L-bupivacaine, and pain management can be carried out on various pain scenes clinically.

The invention relates to the technical field of RT type lacrimal passage drainage tube application, and particularly discloses an RT tube application method for simultaneously solving upper and lower lacrimal passage blockage, which comprises the following steps of: firstly, performing preoperative local anesthesia on a patient; the upper lacrimal punctum and the lower lacrimal punctum of the diseased eye are expanded, and after a thin probe is used for probing the obstruction position of the lacrimal passage from the upper lacrimal ductule and the lower lacrimal ductule, the lacrimal passage is flushed Expanding the obstructed part of the lacrimal passage by using a large probe; then, the artificial lacrimal duct is implanted, the RT tube is implanted into the upper and lower lacrimal ducts at the same time, the problem of blockage of multiple parts is solved through a single instrument, repeated damage to periorbital tissue caused by fractional operations is avoided, and the device is particularly suitable for complex cases that upper and lower lacrimal canalicules and nasolacrimal ducts are blocked or narrow at the same time; the whole-course drainage of the tears from the upper and lower lacrimal passages to the nasal cavity is further ensured, and the physiological path of tear circulation is recovered; the RT tube is placed, skin or mucous membrane does not need to be cut open, no scar is visible after operation, and the requirement for periocular beauty is met.

There is provided a method comprising: detecting and / or segmenting a dental-related anatomical structure of a subject from a dental 3D imaging model, wherein the dental-related anatomical structure includes a target for injection of anesthesia by a dental syringe, accessing sequential frames of an oral cavity of a subject captured by an image sensor during a dental session of the subject, presenting within a GUI, at least one fused frame depicting a merger of the sequential frames and the segmentation of the dental-related anatomical structure of the subject registered to the sequential frames, wherein the dental-related anatomical structure is depicted on the sequential frames at a location indicating the target for injection, and dynamically updating the location of the dental-related anatomical structure depicted on the sequential frames according to dynamic adaptation of a pose of the image sensor.

The present invention relates to a soluble microneedle for local anesthesia and a local anesthesia patch comprising same, the soluble microneedle comprising an amide-based local anesthetic, hyaluronic acid, and polyvinylpyrrolidone in a specific content ratio. The present invention uses the soluble microneedle to implement direct drug delivery by physically permeating through the stratum corneum and mucosa, and thus a precise and rapid anesthetic effect may be exhibited. Especially, the microneedle comprising a specific amount of polyvinylpyrrolidone is dissolved, and the anesthetic contained in the microneedle is rapidly delivered to nerve cells, and thus the disadvantage of a long waiting time of conventional anesthetic creams may be overcome, and thus the present invention has the advantage of being usable in various ways in dental, dermatology, and other surgical procedures requiring local anesthesia.

The invention discloses a pulse ablation device and a discharge control method of a pulse ablation catheter, the pulse ablation device comprises the pulse ablation catheter and a controller, the pulse ablation catheter comprises a plurality of discharge units, the discharge units are used for issuing a pulse electric field, and the discharge units are divided into a plurality of discharge sequences; each discharge sequence comprises at least two discharge units; the controller is connected with the pulse ablation catheter and used for controlling the multiple discharge sequences in the pulse ablation catheter to sequentially emit the pulse electric fields according to a preset sequence. The pulse electric fields are sequentially distributed according to the preset sequence by controlling the discharge sequence, so that the discharge unit distributes the pulse electric fields in batches for ablation treatment instead of simultaneous discharge, stimulation to muscles of a patient is reduced, and a pulse electric field ablation operation can be performed by adopting local anesthesia.

The invention provides an anhydrous plant-based compound antibiotic self-emulsifying ointment and a preparation method thereof. The ointment comprises a compound antibiotic drug component and a plant-based semisolid self-emulsifying matrix, the compound antibiotic drug component comprises polymyxin antibiotics and a local anesthesia pain-relieving component, and the compound antibiotic drug component is dissolved and uniformly dispersed in the plant-based semisolid self-emulsifying matrix to form a solid solution; the plant-based semisolid self-emulsifying matrix comprises 20-70 wt% of plant-based oil, 10-30 wt% of an emulsifier, 10-35 wt% of a co-emulsifier and 10-20 wt% of a thickener, and the co-emulsifier comprises a small-molecule co-emulsifier with the molecular weight smaller than 100 and containing one or more active hydroxyl groups. The compound antibiotic drug component in the ointment can be well dissolved in a matrix to form a solid solution, and has good self-emulsifying property and shear thinning property, so that the rapid permeability and antibacterial property of the drug are synergistically improved.

The invention provides an analgesic microneedle patch based on 3D printing and a preparation method and application thereof, and belongs to the technical field of biomedical materials.The preparation method of the hydrogel microneedle patch based on 3D printing comprises the following steps that 1, cold water fish skin gelatin is dissolved in DPBS, and a gelatin solution is obtained; (2) mixing methacrylic anhydride and gelatin liquid to generate polymerization reaction, so as to obtain a hydrogel material; and 3) loading an anesthetic and analgesic drug on the hydrogel material, and printing by a photocuring 3D printing method to obtain the hydrogel microneedle patch. The 3D printing technology is combined with a microneedle which is a dysmenorrhea-free skin drug delivery system, local anesthetics are loaded into the microneedle patch, on the basis of painless drug delivery, the drug delivery efficiency is improved, the drug onset time is shortened, and then the effect of effectively, rapidly and safely playing a local anesthesia role is achieved.

According to the puncture assembly for the trigeminal nerve meniscus balloon compression operation under local anesthesia, firstly, an anesthetic needle is designed to be of a detachable structure and can be arranged in a puncture needle in a sliding and sleeving mode, and precise local anesthesia is conducted firstly in the puncture process; then the same puncture channel is used for carrying out subsequent balloon catheter insertion operation; and secondly, the balloon is fixedly arranged at the front end of the balloon catheter and is connected with the balloon dilatation pressure pump, so that moderate compression on the trigeminal nerve meniscus can be realized by accurately controlling the filling degree of the balloon in the operation process. Meanwhile, the pressure pump has a real-time monitoring function on the internal pressure of the balloon, so that an important reference basis is provided for doctors, the safety and effectiveness of surgical operation are ensured, and nerve injury or other negative effects caused by overhigh pressure of the balloon are avoided.

The invention provides a chest drainage tube for slowly releasing analgesic medicine and a preparation method of the chest drainage tube, and belongs to the technical field of medical nano biological materials. The invention provides a chest drainage tube capable of slowly releasing analgesic medicine. The chest drainage tube comprises a drainage tube body and local anesthetic composite hydrogel loaded on the outer surface of the drainage tube body. The local anesthetic composite hydrogel is attached to the outer surface of the drainage tube and can slowly release the loaded local anesthetic, the hydrogel is used as a drug carrier, the first-time drug loading amount is increased, the effective concentration of the local anesthetic can be maintained in the tube indwelling period through slow degradation of the hydrogel, and the local anesthetic in the tube indwelling period can be reduced. The long-acting analgesic effect is achieved, the basic purpose of postoperative chest drainage can be achieved, the long-term sustainable analgesic effect can be achieved, the adverse effects caused by a traditional analgesic method are obviously reduced, the pain caused by indwelling of a chest duct after a surgery can be obviously relieved, and rehabilitation of the patient is promoted. And theoretical support is provided for subsequent research and expansion to abdominal cavity operations and pelvic cavity operations.

The utility model belongs to the technical field of spraying devices, and particularly relates to an adjustable spraying device for local anesthesia, which comprises a bottle body, a hydraulic device is mounted on the inner side of the bottle body, a first fixing part is sleeved at a top opening of the bottle body, and a second fixing part is inserted at the top of the first fixing part. The top of the second fixing part is connected with a spraying head in a sliding and inserted mode, the bottom end of the spraying head is located in the second fixing part and connected with a hydraulic device through a connecting pipe, and a circulation groove is formed in the inner side of the spraying head. When the anesthetic liquid is touched by mistake, the blocking plate is pushed to slide in the second sliding groove, one end of the blocking plate slides into the blocking groove in the opposite side, the circulation groove is completely blocked, and the risk that the anesthetic liquid flows out again to cause waste due to mistaken touch is avoided.

The present invention relates to the technical field of healthcare informatics, and particularly relates to a urinary control management system and method based on an intelligent catheter, including: obtaining historical patient data during the catheter insertion process, thereby obtaining a scalar value sequence and a weight vector sequence of nodes in the hidden layer of the neural network architecture to screen out the target hidden layer, dividing each target hidden layer into several node groups, obtaining updated node groups, thereby obtaining a neural network with an updated architecture, training using a training data set, obtaining the trained neural network, thereby outputting the pain points during the catheter insertion process of the current patient, and performing local anesthesia on the pain points. The present invention can accurately identify the pain points during the catheter insertion process of the patient, and then perform local anesthesia on the pain points to improve the urinary control management effect.

The invention relates to a throat natural cavity operation platform, and belongs to the technical field of medical instruments, the throat natural cavity operation platform comprises an operation table, a support frame, a lower support mechanism and a bendable throat cannula, the two ends of the operation table in the width direction are the front end and the rear end respectively, a patient sits in front of the operation table through a seat, and a doctor sits behind the operation table through the seat; the support frame is fixed on the table top close to the front part of the operating table; the lower support mechanism comprises an electric push rod and a lower jaw support; the electric push rod is fixed on the support frame and a telescopic end thereof reciprocates along the height direction of the support frame; the supporting frame is fixed to the telescopic end of the electric push rod. The throat cannula is located above the rear portion of the lower jaw support and fixed to the supporting frame. A traditional throat cavity operation platform structure is subverted, a sitting type operation is adopted to replace a horizontal type operation, the throat operation of local anesthesia can be implemented, the worry of a patient is reduced, the operation convenience of a doctor can be improved, the treatment effect is improved, and the medical cost is reduced.

The invention provides an antibacterial and anti-inflammatory traditional Chinese medicine compound preparation and a preparation method thereof. The compound preparation is prepared from the following raw materials in parts by weight: 10 to 30 parts of fructus forsythiae, 10 to 25 parts of flos chrysanthemi, 15 to 40 parts of rhizoma imperatae, 5 to 10 parts of herba menthae, 0.5 to 3 parts of borneol and 0.1 to 3 parts of camphor. The main innovation point of the formula is that triple mechanisms of clearing away heat and toxic materials, repairing mucous membranes and rapidly relieving pain are innovatively fused; instantaneous mucous membrane permeation is realized through volatile components (borneol, mint and camphor), and itching and pain are quickly relieved; forsythia suspense-chrysanthemum-couch grass root synergistically inhibit release of inflammatory factors and radically diminish swelling, and the specific functions are as follows: forsythia suspense has antibacterial and antiviral effects and inhibits streptococcus in throat; chrysanthemum has the effects of clearing liver fire, relieving heat toxin and eliminating mucosal hyperemia; the couch grass root can promote salivation, moisten dryness and repair damaged mucosa; mint is capable of quickly relieving itching and promoting transmembrane absorption of the medicine; borneol is used for instantly cooling and easing pain and opening a cell channel; and camphor and local anesthesia enhance the pain relieving time efficiency.

The invention discloses a compound with a local anesthesia function as well as a preparation method and application thereof, and belongs to the technical field of biological medicines. The preparation method of the compound comprises the following steps: mixing and heating lidocaine and 2-bromoethanol to obtain a compound 1; the preparation method comprises the following steps: mixing dicarboxylic acid, N-hydroxysuccinimide, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride and a solvent to obtain a mixed solution; mixing and dissolving a compound 1, alkali and a solvent, and then adding into the mixed solution; and then carrying out spin-drying, separation and purification to obtain the compound with the local anesthesia function. The medicine can be used as a local anesthetic or analgesic for long-acting nerve block or selective nerve block. The medicine can block nerve conduction, has biocompatibility and biodegradability, is expected to overcome the problems of short time efficiency of single-needle injection and the like, and improves the efficacy of the medicine.

The invention relates to a device (1) for draining cerebrospinal fluid, wherein the device (1) has a shaft (2) that can be implanted into a skull bone (14) of a human or animal, wherein the device (1) is suitable for draining cerebrospinal fluid from the subarachnoid space and / or a cerebral ventricle (15) into the diploë of the skull bone (14), and the shaft (2) has radially extending outlet openings (4), wherein a valve (17) is arranged inside the shaft (2) which connects a first chamber to a second chamber, wherein the second chamber has a fluid connection with the outlet openings (4), and a tube (5) opens into the shaft (2) at the distal end face of the shaft (2), or a tube (20) is arranged at the distal end face of the shaft (2) to which a tube (5) is connected.wherein the tube (5) in its proximal section or the pipe (20) is in fluid communication with the first chamber and the tube (5) has at least one distal inlet opening (8) for cerebrospinal fluid, wherein the inlet openings (8) can be placed in the subarachnoid space and / or in the region of a cerebral ventricle (15) and the tube (5) has a lumen (9) into which a wire (6) can be inserted, wherein the wire (6), when inserted, protrudes from the proximal end face of the device (1). The invention allows the treating physician to position and adjust the device (1) according to the requirements for draining the cerebrospinal fluid into the diploë of the skull bone (14). Placement is possible under local anesthesia.

The utility model relates to the technical field of foldable head frames for electrophysiological surgery, and discloses a foldable head frame for electrophysiological surgery under local anesthesia, which comprises two first fixing frames, first connecting plates are fixedly arranged at two ends of the two first fixing frames, and connecting shafts are fixedly arranged at the tops of the first connecting plates. One end of each first fixing frame is provided with a penetrating structure, a second fixing frame is connected between the two ends of each first fixing frame, during use, the first fixing frames and the second fixing frames are unfolded to form a rectangle, then a right-angle plate is buckled between the two second threaded rods, and nuts are in threaded connection with the right-angle plate; the first fixing frame and the second fixing frame are limited and fixed through the right-angle plate, the head of a patient is fixed through a rectangle formed by the first fixing frame and the second fixing frame, after use, the right-angle plate is separated from the second threaded rod by rotating the nut, then the opposite angles are pulled, and therefore the first fixing frame and the second fixing frame are folded together. The storage is convenient.

The invention discloses a minimally invasive surgery treatment system for benign prostatic hyperplasia and a use method of the minimally invasive surgery treatment system. The system comprises an outer cannula used for entering the body of a patient through the urethra, a handle connected to the outer cannula, a cannula installed in the outer cannula, a stretching tube installed in the cannula, a guide wire installed in the stretching tube, a puncture needle head installed at the free end of the guide wire, a rotation driving mechanism used for driving the guide wire to rotate and a telescopic driving mechanism used for driving the cannula to move. A plurality of cutting knives which are uniformly arranged around the stretching tube are arranged between the free end of the stretching tube and the puncture needle head; a magnetic ring which is magnetically attracted with the puncture needle head is arranged at the free end of the sleeve; a guide wire locking mechanism used for locking the guide wire and a stretching pipe adjusting and locking mechanism used for adjusting the position of the stretching pipe and locking the stretching pipe are further arranged in the handle. The system is reasonable in structural design, the telescopic cutting knife is integrated into the puncture assembly, when the system is used for operation, trauma is small, recovery is fast, only local anesthesia is needed, the effect is fast, and the operation effect is good.

There is provided a method comprising: detecting and / or segmenting a dental-related anatomical structure of a subject from a dental 3D imaging model, wherein the dental-related anatomical structure includes a target for injection of anesthesia by a dental syringe, accessing sequential frames of an oral cavity of a subject captured by an image sensor during a dental session of the subject, presenting within a GUI, at least one fused frame depicting a merger of the sequential frames and the segmentation of the dental-related anatomical structure of the subject registered to the sequential frames, wherein the dental-related anatomical structure is depicted on the sequential frames at a location indicating the target for injection, and dynamically updating the location of the dental-related anatomical structure depicted on the sequential frames according to dynamic adaptation of a pose of the image sensor.

The utility model relates to the technical field of anesthesia boosting instruments, and discloses a local anesthesia boosting instrument capable of controlling the medicine pushing amount, which comprises a pushing cylinder, a thread area is arranged on the outer wall of the left end of the pushing cylinder, a thread ring is in threaded connection with the outside of the thread area, and movable grooves are formed in the upper side and the lower side of the left end of the pushing cylinder. A shell is fixedly connected to the right end of the pushing cylinder, a motor is fixedly connected to the exterior of the shell, an inner threaded sleeve is fixedly connected to a driving shaft of the motor, and a threaded rod is in threaded connection with the interior of the left end of the inner threaded sleeve. According to the anesthetic needle fixing device, the storage groove is rotated to be aligned with the movable ball, and at the moment, the fixed cylinder and the pushing cylinder can be mounted and dismounted, so that the anesthetic needle is convenient to replace, the threaded ring is matched with the limiting block, the injection metering of the anesthetic needle and the movement of the nut block and the connecting rod can be controlled, and the anesthetic needle in the middle is clamped by the clamping plates on the two sides; the anesthetic needle fixing device is simple and quick to operate.

The present invention relates to a drug solution injection type urination catheter, which includes a catheter body having a flexible hollow pipe shape, an expansion tube located near one end of the catheter body and spaced apart from the one end, a urination port connected to the other end of the catheter body for discharging urine from the body, an air injection port connected to the other end of the catheter body for injecting air into the expansion tube, and a drug solution injection port connected to the other end of the catheter body for injecting the drug solution, and when the hollow is viewed in cross section, a urination hole communicating with the urination port, a urination hole communicating with the air injection port, and a drug solution injection port connected to the other end of the catheter body for injecting the drug solution are provided. an air injection hole communicating with the drug solution injection port and a drug solution injection hole communicating with the drug solution injection port are arranged separately from each other, and a plurality of drug solution outlet ports are formed on the circumferential surface of the catheter body, which communicate with the drug solution injection hole and are arranged so as to be spaced apart along the direction in which the catheter body extends. Therefore, by applying the drug solution that has passed through the drug solution injection port and the drug solution injection hole via the drug solution outlet ports to the bladder or urethra, it is possible to perform the specified function, such as local anesthesia or bladder irrigation, uniformly in the longitudinal direction of the urethra, and has the advantages of being easy to insert into the urethra and significantly reducing the occurrence of pain.

The application relates to the technical field of femoral head necrosis treatment, in particular to a bionic artificial balloon type half hip joint, which comprises a sleeve, a femoral neck, a fixing screw and a femoral neck limiting nut, the sleeve is fixed on a femur through the fixing screw, the femoral neck is slidingly connected in the sleeve, a balloon is fixed on the outer periphery of the top section of the femoral neck, the inside of the femoral neck is hollow, and a side hole is arranged at the top end of the femoral neck and communicates with the balloon, and the femoral neck limiting nut is used for being fixed in the sleeve to position the femoral neck. The balloon type femoral head is compared with the metal and ceramic femoral heads, the balloon type femoral head is more matched with the shape of the acetabulum in terms of shape, the elastic modulus of the balloon type femoral head is equivalent to that of the bone cartilage of the acetabulum, the balloon type femoral head is beneficial to cartilage nutrition, and the wear of the bone cartilage of the acetabulum is small; the balloon is in a shriveled state when no filler is filled in the balloon, the balloon can be placed in the femur along the sleeve, the joint capsule and the medullary cavity do not need to be opened, the trauma is small, the risk of subsequent infection and dislocation is small, meanwhile, the prosthesis wear can be replaced through the sleeve, and the replacement is convenient and fast and can be completed under local anesthesia.

The invention relates to the technical field of medical instruments, in particular to a micro-power jaw lesion biopsy instrument which comprises a shell, a mounting part and a functional part. The mounting part is located in the shell, and a first driving assembly is arranged on the mounting part; the functional part is mounted on the mounting part and is a grinding assembly or a clamping assembly; one end of the functional part is detachably connected with the mounting part and is in driving connection with the first driving assembly; and the other end of the functional part is a functional end extending out of the shell. Compared with the prior art, the working assemblies can be switched, the functions of polishing a patient and grabbing diseased tissue are achieved, additional power punching equipment is not needed, biopsy of local anesthesia jaw bone diseases in the outpatient environment can be achieved, the working efficiency is improved, and the medical cost is reduced.

The present application discloses an endoscope, comprising a mirror body; a first tube, the first tube is rotatably connected to the mirror body; a push rod, the push rod is spline-connected to the first tube; a pull rod, the pull rod is arranged inside the push rod, and the end of the pull rod passes through the push rod; a nozzle, the nozzle is rotatably connected to the end of the push rod; a first trigger, the first trigger is connected to the push rod; and a second trigger, the second trigger is connected to the pull rod. The present application integrates the first, second, third, and fourth triggers, which respectively control different actions of the nozzle. When anesthesia is required for a certain area in the body during surgery, local anesthesia can be achieved through the nozzle, and the operation is simple and convenient; pressing the first trigger can move the push rod forward to expose the nozzle and the position can be locked; when the second trigger is pressed, the first tube reciprocates to make the nozzle swing back and forth, and anesthetics are sprayed through the nozzle at the same time, and due to the cooperation of the arc-shaped rack, cam, and tilting rod, the arc-shaped rack can drive the cam to rotate multiple times in one back and forth stroke, so that the anesthetic spraying is more uniform.

The present invention relates to a balloon catheter assembly for jointly performing local anesthesia and balloon dilatation, comprising a balloon catheter and a guide wire, the balloon catheter comprising: a handle provided with a cavity, and a discharge port, a main channel and a secondary channel communicating with the cavity; the balloon is arranged at one end, far away from the handle, of the balloon catheter; one end of the inner core catheter is communicated with the main channel in the cavity of the handle, the other end of the inner core catheter extends from the cavity of the handle, penetrates through the discharge port and reaches an inner core catheter outlet of the inner core catheter, and the inner core catheter outlet is communicated with the interior of the balloon; and an outer core catheter disposed outside of the inner core catheter and having one end in communication with the secondary passage in the cavity of the handle and the other end extending from the cavity of the handle through the discharge port to an outer core catheter outlet of the outer core catheter, the outer core catheter outlet communicating with the outside of the balloon catheter, and wherein the outer core catheter is disposed outside of the balloon catheter. The diameter of the guide wire is smaller than the inner diameter of the inner core catheter of the balloon catheter, so that the guide wire can be introduced into the inner core catheter.

The invention discloses a temperature-sensitive modified chitosan hydrogel-loaded local anesthetic sustained-release analgesic system, a preparation method and an application. A temperature-sensitive chitosan derivative is dissolved in water at low temperature, a local anesthetic analgesic aqueous solution or a degradable polymer microsphere loaded with a local anesthetic analgesic is added in a liquid state and mixed evenly at low temperature, and the system is injected into a part requiring local anesthesia and analgesia to quickly form a gel at body temperature and release the drug slowly. The main features of the local anesthetic sustained-release analgesic composite hydrogel system are simple preparation, no organic solvent is used, and the local anesthetic analgesic can be slowly released, which solves the problem of the existing local anesthetics such as bupivacaine hydrochloride, ropivacaine and lidocaine being released too quickly and having a short action time; it can completely fill irregular wounds, has good biocompatibility and biodegradability, and is conducive to long-term local anesthesia, analgesia, anti-inflammatory and antipruritic effects and promotes wound healing.

The invention provides a microneedle anesthesia analgesia system and method for painless local anesthesia injection, and the system comprises a bionic gradient microneedle array, a mechanical drive module, an electromagnetic lead-in module, a multi-mode biosensor and a PID controller. The bionic gradient microneedle array is connected with the mechanical driving module and the electromagnetic leading-in module; the electromagnetic lead-in module is used for promoting the diffusion of the anesthetic in the in-vivo tissue; the multi-mode biosensor is used for monitoring the concentration of anesthetic in vivo, the pH value of tissues and drug metabolites in real time and sending the acquired information to the PID controller; and the PID controller is used for dynamically adjusting the microneedle penetration length, the drug release rate and the electromagnetic introduction intensity parameter according to the information sent by the multi-mode biosensor. By means of the technical scheme, the local anesthesia analgesic effect without injection pain is truly achieved.

The invention discloses an anesthesia device with adjustable anesthesia concentration, and relates to the technical field of medical instruments. The anesthesia device with the adjustable anesthesia concentration comprises a base, the top of the base is fixedly connected with a lying plate, the top of the base is fixedly connected with a first annular plate, the top of the base is fixedly connected with a guide mechanism, and the top of the base is fixedly connected with an anesthesia mechanism. Through cooperative work of the anesthesia mechanism and the guide mechanism, a first motor is used for driving a second annular plate to rotate, so that the problem that the anesthesia concentration in a traditional anesthesia device is not uniform is effectively avoided, a patient cannot sense pain due to too shallow local anesthesia in the operation process, risks such as waking delay due to too deep local anesthesia cannot be increased, and the operation efficiency is improved. The safety and effectiveness of anesthesia are improved, smooth operation is guaranteed, and the distribution uniformity of anesthetic gas is remarkably improved by adopting the rotary motion of the guide mechanism and the arrangement of the staggered airflow mechanism.

The invention discloses an endoscope. The endoscope comprises an endoscope body, the first tube is rotationally connected to the mirror body; the push rod is in spline connection with the first pipe; the pull rod is arranged in the push rod, and the end of the pull rod penetrates through the push rod; the nozzle is rotationally connected to the end part of the push rod; the first trigger is connected with the push rod; and the second trigger is connected with the pull rod. The first trigger, the second trigger, the third trigger and the fourth trigger are integrated to control different actions of the spray head, local anesthesia can be achieved through the spray head when a certain area in a body needs to be anesthetized in an operation, and operation is easy and convenient; the push rod can move forwards by buckling the first trigger, so that the spray head is exposed out of the mirror body and can be locked; when the second trigger is buckled, the first pipe rotates in a reciprocating mode to enable the spray head to swing in a reciprocating mode, anesthetic is sprayed out through the spray head, and due to cooperation of the arc-shaped rack, the cam, the tilting rod and other structures, the arc-shaped rack can drive the cam to rotate by multiple circles by one reciprocating stroke, so that anesthetic spraying is more uniform.