36results about How to "Shorten puncture time" patented technology

A blood collecting needle, which comprises: a needle tube having a human-body puncturing needle tube and a stopper-body puncturing needle tube, wherein the needle tube has an outer diameter having substantially the same dimension from a tip of the human-body puncturing needle tube to a tip of the stopper-body puncturing needle tube, the needle tube has an inner diameter having substantially the same dimension from the tip of the human-body puncturing needle tube to the tip of the stopper-body puncturing needle tube, and the blood collecting needle satisfies equation (1):0.35≦D1<0.70  (equation 1) wherein D1 represents the outer diameter (mm) of the needle tube.

A high-speed lancing device with lancet ejection assembly, comprising: a housing for the user to hold, a lancet support assembly; a lancet that can be attached to said lancet support assembly; a recovery assembly, said recovery assembly comprises a sleeve and a first flexible element, said sleeve is on one side of said housing, said sleeve can engage said lancet support assembly; a loading assembly, said loading assembly comprises an impact assembly and a rear assembly, said impact assembly and said rear assembly are positioned on the longitudinal axis of said lancing pen, said impact assembly further comprises a rod and a second flexible element; a trigger element, said trigger element is at the side of said housing; a lancet ejection assembly, said lancet ejection assembly can remove said lancet from said lancet support assembly.

The invention provides a TRUS image navigation multichannel prostate close-range radioactive seed implantation robot and relates to the field of medical apparatus and instruments for the purpose of overcoming the defects of a manual image navigation prostate close-range radioactive seed implantation operation. The TRUS image navigation multichannel prostate close-range radioactive seed implantation robot is composed of a rack, a bidirectional movement mechanism, a position adjustment mechanism, an electric seed implantation mechanism, a multichannel puncture mechanism and a TRUS image navigation mechanism. The TRUS image navigation multichannel prostate close-range radioactive seed implantation robot is structurally characterized in that through cooperative use of the bidirectional movement mechanism and the position adjustment mechanism, an outer needle of the electric seed implantation mechanism can be adjusted to a target height (primary location); when the bidirectional movement mechanism is combined with the multichannel puncture mechanism, a prostate tumor area puncture needle can be arranged, and the prostate can be fixed; when the electric seed implantation mechanism is combined with the TRUS image navigation mechanism, closed-loop control over the acupuncture needle position can be realized through image feedback, and the precision of seed implantation can be improved.

The invention relates to a three-dimensional puncture locating system comprising a bed plate, a mechanical arm arranged on the bed plate and a body surface locator, wherein the body surface locator comprises a support paste, a semi-spherical upper locating ring, a semi-spherical lower locating ring, a metal guide tube and a slide table. The upper locating ring and the lower locating ring are movably connected with the support paste; the upper locating ring and the lower locating ring are installed on the support paste in an intersecting manner; the upper and lower locating rings are provided with slide rails; the slide table can slide along the slide rails; the metal guide tube is arranged on the slide table which is also provided with a locking mechanism; when the locking mechanism is loosened, the slide table can slide along the slide rails, and when the locking mechanism is locked, the slide table cannot slide. The three-dimensional puncture locating system has the advantages that the body surface adjustable fixing device is provided, the metal guide tube is used for scanning guide, and human body parts or foci are accurately located and punctured according to extension lines; the mechanical arm is used for controlling a puncture needle or a curing instrument; dynamic location is achieved in a remote control manner or in a manual manner; through safe location of three points and one line, location, puncturing and treatment can be completed quickly.

The invention discloses a hard waist combined anesthesia puncture bag for automatically detecting the epidural space position. The hard waist combined anesthesia puncture bag comprises a push rod with tooth grooves, a spring, a spring baffle and an injector needle cylinder. The front portion of the push rod penetrates through the spring baffle to stretch into the injector needle cylinder, a piston is arranged at the top end of the front side of the push rod, and the spring baffle is fixed to the injector needle cylinder. The push rod is sleeved with the spring, the front end of the spring is connected to the piston, and the rear end of the spring is connected to the spring baffle. A lock catch matched with the tooth grooves is arranged on the spring baffle. The subjective judgment of an anesthetist and the visual effect are organically combined, a puncture needle is prevented from penetrating through the endorhachis, and the hard waist combined anesthesia puncture bag is safer and more effective for a patient and more practical and more reliable for the anesthetist.

The invention provides a medium thickness stainless steel plate rapid perforating process. The process comprises following steps of firstly, deep blasting, wherein a cutting head with the laser powerbeing larger than or equal to 3000 watts is used for cutting, the height between the cutting head and the surface of a panel is set to range from 12 to 16 mm, the duty ratio ranges from 55 to 75%, theoxygen with the air pressure being 0.6 Bar to 1.2 Bar is adopted, the frequency ranges from 8 to 20 Hz, the focal position is below the surface of the board to be cut by 50 to 70%, and the laser radiation time ranges from 0.5 S to 1.5 S; secondly, slag purging, wherein the height of the cutting head is adjusted to the position away from the surface of the board by 10 mm, nitrogen with the pressure being 4 Bar is used, and the board is purged by 1S to 2S; and thirdly, perforating, wherein the cutting head with the power being larger than or equal to 3000 watts is used, the cutting head is adjusted to the position above the surface of the board by 16 mm, and cutting and perforating are carried out. The oxygen deep blasting is used, the material is carbonized, the nitrogen with the high pressure is used for blowing off carbonized slag, the too much surface slag stacking caused by long perforating time can be greatly reduced, after perforating, cutting connection is stable, and cutting stability is ensured.

The invention provides a microwave ablation needle which comprises an ablation needle head, an ablation needle tube, a handle and a fixing frame. The ablation needle head is of a hollow structure, a guide wire is arranged in the ablation needle head, a guide tube externally sleeves the ablation needle head, the ablation needle head can axially move along with the guide tube, the handle is connected with a pushing device for pushing the ablation needle head to move along the axial direction of the guide tube, and the pushing device is arranged at one end of the handle far away from the ablation needle head. According to the microwave ablation needle, the microwave ablation needle is arranged in the guide tube and pushed to perform puncture by the pushing device, puncture accuracy and stability are improved, bending or breaking of the microwave ablation needle in the puncture process is effectively avoided, injury to human tissues is decreased, puncture time is shortened, and surgical risks are reduced.

The invention discloses a guiding sheathing canal, a catheter and an oval nest detection method for inter-atrial septal puncture. The guiding sheathing canal comprises a tail end sheathing canal and an adjustable bent section connected with the tail end sheathing canal, a first sheathing canal magnetic positioning sensor and a second sheathing canal magnetic positioning sensor are arranged at thetwo ends of the adjustable bent section respectively, the first sheathing canal magnetic positioning sensor is close to the tail end sheathing canal, and the distance between the end, close to the tail end sheathing canal, of the first sheathing canal magnetic positioning sensor and the free end of the tail end sheathing canal is remarked as L; the guiding sheathing canal is used for being matchedwith the catheter, the catheter can move in the axial direction of the guiding sheathing canal, the distance between the end, close to the tail end sheathing canal, of the first sheathing canal magnetic positioning sensor and the free end of the catheter is marked as D, and the free end of the catheter is provided with a pressure sensor and a catheter magnetic positioning sensor. According to theguiding sheathing canal, inter-atrial septal puncture is more accurate and effective, puncture time is saved, more importantly, zero ray in the puncture process can be achieved, the bodies of doctorsand patients are better protected against radiation influences, and the guiding sheathing canal is simple in structure, convenient to use and good in effect.

The invention provides a simulated blood vessel puncture simulation training device, a simulated blood vessel is pre-buried in a human tissue module and liquid is injected into the simulated blood vessel through pressurization; during puncture training, simulated human body tissue is observed through ultrasonic waves, a needle tip is inserted from a skin layer of the simulated human body tissue, and the needle tip is guided to be inserted into the simulated blood vessel through an ultrasonic display panel; and when the needle tip is inserted into the simulated blood vessel and due to the factthat simulated blood is injected into the simulated blood vessel through pressurization by a liquid storage bag, the simulated blood flows back into a needle tube through the needle tip, and the training personnel can clearly know that the puncture is completed through the ultrasonic waves and observation of the backflow of the blood. According to the puncture simulation training device in the invention, animal tissue is adopted as a puncture simulation module, due to the same as the human body tissue, the degree of simulation is improved, the pinholes are not obvious even through repeated puncture, and the fidelity of puncture training is improved as the feeling of touching the blood vessel under the skin layer by hands and the falling feeling of needle injection are similar to a real person during puncture.

The invention discloses a puncture method of an artery puncture needle for invasive arterial blood pressure monitoring. The puncture method is characterized by comprising the following steps: (1) preparing materials; (2) connecting an invasive arterial blood pressure monitoring device; (3) checking whether the invasive arterial blood pressure monitoring device is normally connected; (4) determining an artery pulsation point; (5) disinfecting the skin; (6) puncturing; (7) judging whether the puncture is successful; and (8) extracting a steel needle after successful puncture, sending a soft needle to a vessel position, and finally fixing an artery puncture needle. The puncture method can realize digitized guidance of operation through arterial blood pressure waveforms on a monitor and judge whether puncture of the artery puncture needle is in place according to the arterial blood pressure waveforms on the monitor; and the whole puncture process is performed in a closed manner, so that blood overflow is prevented, puncture points are protected against contamination, the puncture success rate is high, and the puncture time is short.

The invention discloses a visual gas abdominal puncture needle, and relates to the technical field of medical apparatus. The visual gas abdominal puncture needle comprises a puncture needle head, a needle tubing, a handle, a gas outlet, a camera, an adjusting valve and a gas inlet, the puncture needle head is connected to the front end of the needle tubing in a sleeved mode, the camera is arranged in the puncture needle head in an embedded mode, the gas outlet is formed in the puncture needle head, the handle is arranged on the outer portion of the needle tubing, the adjusting valve is installed on a tube body of the rear portion of the handle, the gas inlet is located at the tail end of the needle tubing, the camera is connected with a video camera connecting wire, the video camera connecting wire penetrates out of a needle body from the rear portion of the handle, the tail end of the video camera connecting wire is connected to a connector, the other connector is connected with a display screen through a display screen connecting wire, and when the two connectors are in connection, images collected by the camera can be transmitted and displayed. According to the visual gas abdominal puncture needle, puncture positioning is accurate, operation time is saved, damage to a patient and risks of a surgery are reduced, and application and popularization are easy.

The invention relates to medical instruments, in particular to a puncture template navigating and positioning device. The puncture template navigating and positioning device comprises a fixed base, afixed guide rail, a sliding base, a stand-column guide rail, a lifting slide, a horizontal guide rail mounting base, a horizontal guide rail, a horizontal slide, a vertical guide rail mounting base, avertical guide rail, a fixed joint, a first movable joint, a second movable joint, an electronic gyroscope, a puncture template, a Bluetooth signal transmitter, and a Bluetooth signal receiving and displaying device. The puncture template navigating and positioning device has the advantages that the puncture template can be adjusted in any direction in a space to adjust the puncture angle of thepuncture template, and the puncture angle can be displayed on the Bluetooth signal receiving and displaying device to be determined accurately, so that error rate is reduced greatly, simplicity in simple and accurate positioning are achieved, puncture success rate is increased, puncture time is shortened, technical difficulty is reduced, detection rate and cure rate of tumors are increased, and patients' pain is relieved.

The invention discloses a puncture body surface location fence and a use method thereof. The location fence comprises a fixing frame, a plurality of fence lines are arranged in the fixing frame alongthe width direction, a longitudinal location plate is arranged on wide frame edges of the fixing frame, is parallel to the fence lines and comprises a plurality of location blocks, a plurality of hollowed-out grooves are formed in the longitudinal location plate in a front and back penetrating manner and formed in the location blocks in a one-to-one corresponding manner, the hollowed-out grooves are perpendicular to the fence lines, the horizontal projections of the hollowed-out grooves are different from each other, the tops of the location blocks are provided with longitudinal markers in shapes corresponding to those of the hollowed-out grooves, and a transverse location plate is arranged on long frame edges of the fixing frame and provided with transverse markers. The use method includes the steps: (1) fixing the fixing frame to a body surface; (2) performing DSA (digital subtraction angiography) CT (computed tomography) imaging to obtain a CT image; (3) determining penetration points and the like. The puncture body surface location fence is high in accuracy and convenient to use.

The invention provides a sacrum nerve puncture path simulation planning system and device, and relates to puncture operation simulation. The sacrum nerve puncture path simulation planning system comprises an image obtaining module and a path simulation planning module, and the image obtaining module is configured to obtain scanning images of sacrum, sacral foramen and a positioning grid located at a lumbosacral part; and the path simulation planning module is configured to establish a three-dimensional model of the sacrum, the sacral foramen and the positioning grid according to the scanned image, and acquire a virtual puncture path penetrating through the positioning grid to reach a sacrum set position and an intersection point of the positioning grid and the virtual puncture path according to the three-dimensional model. The problems that at present, sacral nerve holes are directly punctured for many times, and pain of patients is large are solved. By acquiring the scanning images of the positioning grid, sacrum and sacral foramen, taking the positioning grid as a positioning reference, reconstructing the three-dimensional model of the sacrum, the sacral foramen and the positioning grid, taking a reference of penetrating through the positioning grid to reach a sacrum set position, and establishing a plurality of virtual puncture paths, a human organ state and an actual puncture process are simulated.

The invention discloses an ultrasonic-guided mammary gland puncture device. The ultrasonic-guided mammary gland puncture device comprises an outer ring, an inner ring and a fixed disc; the outer ringand the inner ring are semicircular structures; the inner ring is composed of an upper inner ring body and a side inner ring body; furthermore, the upper inner ring body and the side inner ring body are spliced to form a semicircular structure; the periphery of the surface of the inner wall of the outer ring is fixedly connected with a fixed base; a sliding groove is arranged in the other end of the fixed base; the bottom in the sliding groove is fixedly connected with a first spring; the other end of the first spring is fixedly connected with a connecting rod; the side surface of the connecting rod is in contact connection with the side surface of the sliding groove; furthermore, the other end of the connecting rod is fixedly connected with the outer walls of the upper inner ring body andthe side inner ring body respectively; a puncture cylinder is installed between the side inner ring body and the outer ring; and the outer surface of one end of the inner side of the puncture cylinder is in contact connection with the inside of the side inner ring body. The ultrasonic-guided mammary gland puncture device disclosed by the invention has a better breast fixing effect, is more beneficial to subsequent mammary gland puncture, and can effectively reduce the pain of a patient caused by mammary gland puncture.

The invention discloses an invasive arterial blood pressure monitoring device. The invasive arterial blood pressure monitoring device comprises a pressure connecting pipe filled with a pipe flushing liquid and provided with a switch, a continuous flushing system and an electronic monitor, wherein one end of the pressure connecting pipe is connected with an artery puncture needle, and the other end of the pressure connecting pipe is connected with the electronic monitor; a three-way joint A, a liquid extracting device and a transducer are sequentially arranged from the end, connected with the artery puncture needle, of the pressure connecting pipe to the end, connected with the electronic monitor, of the pressure connecting pipe; and the transducer is connected with a pressurizing bag. When the invasive arterial blood pressure monitoring device is used for invasive arterial blood pressure monitoring, according to arterial blood pressure waveforms on the electronic monitor, digital guidance of operation can be realized, and whether the artery puncture needle punctures in place is judged, so that the puncture success rate is improved and the puncture time is shortened.

The invention relates to a novel CT-guided puncture auxiliary positioning device which comprises a base with scales, a vertical rail with scales, a transverse rail with scales, an angle scale and a needle sleeve, a linear rail A is arranged on the base with the scales, a sliding block A is slidably connected into the linear rail A, and the sliding block A does Z-direction linear motion along the linear rail A; the vertical rail with the scales is installed on the sliding block A, a linear rail B is arranged on the vertical rail with the scales, a sliding block B is connected into the linear rail B in a sliding mode, and the sliding block B conducts Y-direction linear motion along the linear rail B; a transverse rail with scales is mounted on the sliding block B and does X-direction linear motion along the sliding block B; the angle scale is installed on the transverse rail with the scales, an arc-shaped rail is arranged on the angle scale, a needle sleeve is connected to the arc-shaped rail in a sliding mode, and the needle sleeve rotates along the arc-shaped rail; compared with the prior art, dependence of puncture on experience of an operator can be greatly reduced, puncture adjustment is reduced, puncture time is shortened, and complications caused by multiple times of needle insertion adjustment are avoided.

The invention provides a microwave ablation needle which comprises an ablation needle head, an ablation needle tube, a handle and a fixing frame. The ablation needle head is of a hollow structure, a guide wire is arranged in the ablation needle head, a guide tube externally sleeves the ablation needle head, the ablation needle head can axially move along with the guide tube, the handle is connected with a pushing device for pushing the ablation needle head to move along the axial direction of the guide tube, and the pushing device is arranged at one end of the handle far away from the ablation needle head. According to the microwave ablation needle, the microwave ablation needle is arranged in the guide tube and pushed to perform puncture by the pushing device, puncture accuracy and stability are improved, bending or breaking of the microwave ablation needle in the puncture process is effectively avoided, injury to human tissues is decreased, puncture time is shortened, and surgical risks are reduced.

The invention discloses a guiding sheath tube, a catheter and a fossa ovale detection method for atrial septal puncture. The guiding sheath tube comprises a terminal sheath tube and an adjustable bendable section connected thereto, and two ends of the adjustable bendable section are respectively provided with There are a first sheath magnetic positioning sensor and a second sheath magnetic positioning sensor, the first sheath magnetic positioning sensor is close to the end sheath, and the first sheath magnetic positioning sensor is close to the distance from the end of the end sheath to the free end of the end sheath is L; the guide sheath is used to match the catheter, the catheter can move axially along the guide sheath, and the distance from the end of the first sheath magnetic positioning sensor close to the end sheath to the free end of the catheter is D, and the free end of the catheter is set as L. There are pressure sensors and catheter magnetic positioning sensors. The introducing sheath makes the atrial septal puncture more accurate and effective, saves the puncture time, and more importantly, the present invention can realize zero radiation during the puncture process, and better protect the body of the doctor and the patient from radiation. The structure is simple, the use is convenient, and the effect is good.

The invention discloses a positioning and guiding ablation probe which comprises an ablation probe body. The ablation probe body comprises a guide puncture probe, a bourdon tube, a guide connecting piece, a guide rod, a guide control device and ablation electrodes. The guide puncture probe, the bourdon tube and the guide rod are sequentially connected. The guide connecting piece is arranged in the bourdon tube. The guide control device adjusts the puncture path of the guide puncture probe through the guide connecting piece and controls the elastic strain of the bourdon tube to adjust the puncture force of the probe. The ablation electrodes are evenly distributed on the peripheral sides of the bourdon tube and the guide rod. According to the positioning and guiding ablation probe, the puncture path of a puncture ablation needle can be controlled to deflect under the condition that puncture force is guaranteed, so that the puncture ablation needle can accurately reach an expected target puncture position; and a therapeutic electrode can be selected according to the form of the ablation tissue, and the purpose of more thorough and conformal treatment is achieved. According to the invention, the difficulty of a puncture operation of a doctor is reduced, the puncture time is shortened, the ablation efficiency and the treatment rate are improved, and meanwhile, the popularization of a minimally invasive ablation technology is also facilitated.

The invention relates to a restraint glove for radial artery surgery. The glove is made of cloth and composed of a surgery part, an arm part and a palm part, an integrated structure is obtained, the two sides of the arm part and the palm part extend outwards to form two arm side wings and two palm side wings, and corresponding hook-and-loop fasteners are arranged on the arm side wings and the palmside wings and are arm hook-and-loop fasteners and palm hook-and-loop fasteners; the arm part, the surgery part and the palm part are each provided with a pocket which is internally provided with anarc-shaped plate, and a pocket hook-and-loop fastener is arranged on the top of each pocket. According to the restraint glove for the radial artery surgery, the radial artery puncture operation time of medical personnel is effectively shortened, and the patency of an indwelling needle in the surgery is guaranteed; it is guaranteed that medical work is completely easily and effectively.

The invention provides a handheld puncture device and a control method, the handheld puncture device is used for assisting puncture of a medical needle, and the handheld puncture device comprises a base body which is provided with a handle and a user input device used for receiving preset needle inserting information; a motor with a mover; a transmission mechanism is connected with the motor, and the transmission mechanism comprises a moving part used for connecting and fixing the medical needle; and a controller is used for controlling the operation of the motor according to the preset needle inserting information. According to the embodiment of the invention, the pain of a patient caused by misoperation of a doctor performing medical needle puncture can be reduced.

The invention discloses a dispensable continuous negative-pressure puncture outfit, which comprises a needle tube and a puncture needle, wherein a pintle is arranged in the needle tube; a stopping device is arranged between the puncture needle and the needle tube; at least one chute is arranged on the pintle axially; chute lateral plates are arranged on two sides of the chute; at least the chute plate on one side is provided with a locking groove; a locking clip is arranged on the end, in which the pintle is inserted, of the needle tube and can move up and down in the chute; and when the pintle is rotated, the locking clip is clipped in the locking groove to clip the pintle to prevent the pintle from moving down. Compared with the prior art, the puncture outfit has the advantages that: the structure is simple, the operation is convenient and ample sample can be accurately positioned and acquired, so the accuracy of fine needle aspiration cytopathologic diagnosis is improved greatly; the puncture time is reduce, pains suffered by patients are reduced, and an operator can concentrate to ensure puncture accuracy; and the drawback that the negative pressure is maintained by the traction force of the hand of the operator of the traditional puncture outfit is radically overcome, the operation is more flexible and quicker than the traditional puncture method, and a good needle feel is offered.

The invention discloses a traditional Chinese medicine prescription for increasing a success rate of PICC (Peripherally Inserted Central Catheter) puncturing by expanding a peripheral blood vessel. The traditional Chinese medicine prescription comprises the following components: 1-3 parts of ground beetle, 1-5 parts of panax notoginseng, 2-5 parts of leech, 2-5 parts of lumbricus, 3-5 parts of peach kernel, 3-10 parts of carthamus tinctorius, 3-5 parts of radix aucklandiae, 3-5 parts of radix curcumae, 2-5 parts of cowherb seed, 2-5 parts of cacumen biotae, 2-5 parts of radix clematidis, 2-5 parts of folium ginkgo, 3-5 parts of achyranthes bidentata, 2-5 parts of eucommia, 3-10 parts of ligusticum wallichii, 3-10 parts of caulis spatholobi, 2-5 parts of radix linderae, 1-3 parts of notopterygium root, 1-5 parts of ramulus cinnamomi, 1-3 parts of ramulus mori, 1-2 parts of rosin, 1-3 parts of polygonum cuspidatum, 2-5 parts of flos chrysanthemi indici, 2-5 parts of herba violae, 2-5 parts of salvia miltiorrhiza, 1-5 parts of rhizoma corydalis and 2-5 parts of Chinese angelica. The traditional Chinese medicine prescription lowers the treatment cost, can obviously expand the blood vessel, can reduce mechanical phlebitis caused by a fine blood vessel during puncturing, raises a comfort level of a patient, and has wide clinic popularization significance.

The invention relates to the field of medical instruments, in particular to a deep venipuncture needle which comprises a puncture needle body, wherein the puncture needle body is a slender needle bar; the rear half of the needle bar is bent into a puncture needle circle part; the extension part at the left side end of the puncture needle circle part serves as a puncture needle front end part; the right side end of the puncture needle circle part serves as a puncture needle tail end. The slender needle bar is adopted, the rear half of the needle bar is bent into a circle, the puncture needle front end part and the puncture needle tail end are on the same horizontal line, and a syringe interface is connected to the puncture needle tail end. A guiding conducting wire is replaced by the puncture needle body, so that puncture time is reduced, and hazards of puncture failure and vessel damage are reduced.

The invention discloses a multipurpose adjustable fixing guide plate for percutaneous puncture operation, and relates to medical instruments. A plurality of groups of angle-adjustable puncture needle guide units are arrayed, and the units can select different specifications of apertures from 12G to 21G, so that the requirements of puncture operations on different needle entry points, different angles and different specifications of puncture needles are met, and the puncture guide plate design has compatibility and universality; a doctor can finish an operation more accurately and quickly under the assistance of the system, and the operation risk is reduced; the adjustable flexible design is adopted, and universality is achieved for different conditions of different patients; the multi-unit design meets the selection requirements of different needle inserting points, the flexible connection design improves the fitting degree of the puncture template and the body of a patient, the adjustable angle design of each unit meets the requirements of different needle inserting angles, various puncture dangerous areas can be avoided, and the focus position can be reached; meanwhile, the equipment can be reused after being disinfected, so that the burden of a patient can be reduced while the operation cost is reduced.

The invention relates to the technical field of puncture devices, in particular to a multifunctional puncture guide wire leading-in device. The device comprises a guide wire channel, a puncture needle connecting pipe, a liquid inlet pipe, a flow stopping clamp, a three-way connector and a liquid supply positive pressure valve; an upper end opening of the guide wire channel is in a horn shape, and the lower end of the guide wire channel is connected with the puncture needle connecting pipe. The lower end of the liquid inlet pipe is connected to the side wall of the guide wire channel, and the liquid inlet pipe is communicated with an inner cavity channel of the guide wire channel. The flow stopping clamp is connected to the liquid inlet pipe, and an upper end opening of the liquid inlet pipe is connected with a first end opening of the three-way connector. And the liquid supply positive pressure valve is connected to a second port of the three-way joint. The guide wire leading-in device can avoid the situation that a guide wire is difficult to place due to the fact that needle point displacement is prone to occurring in the traditional two-step puncture process, the requirement for the operation skill of an operator is low, and the guide wire leading-in device has more advantages on puncture of a fine part.

The invention discloses a puncture guide device and a puncture method, applied to an ultrasonic probe. The guide device is arranged on an ultrasonic probe shell; the guide device comprises a navigation light source; the navigation light source can project a linear projection plane on a to-be-punctured object; and the projection plane is located in a lateral direction of the ultrasonic probe. The puncture guide device provided by the invention, by virtue of the navigation light source and the generated projection plane thereof, can rapidly guide in-plane puncture, so as to facilitate a bared-hand puncture operation, improve puncture efficiency and a success rate and to shorten a puncture time. The puncture guide device provided by the invention is applicable to ultrasonic puncture.

The invention discloses an intracranial hematoma puncture drainage locating device and locating method, and relates to a locating device and a locating method. The locating device mainly comprises a fixing shell, support legs, a drainage tube, a movable locating block, a suction disc, a locating syringe, a locating bolt, a heating button, an extension type screw, an inflating bag, an inflating tube, an inflating valve, a heat preservation button, a thermometer, a syringe needle connecting sleeve, a thread hole, and a connecting tube. The intracranial hematoma puncture drainage locating deviceovercomes the defect of low puncture accuracy rate in the prior art, the puncture time is short, and the pain of a patient is effectively reduced. After the locating method provided by the invention is used to locate intracranial hematoma puncture drainage, the elimination rate of hematoma is greatly improved and is 97.8%, the total effective rate is up to 97%, the difference value of the neural functional recovery is obviously better than that of the prior art, and the viability of a postoperative patient is also greatly strengthened.