165results about How to "Improve the success rate of puncture" patented technology

The embodiment of the invention discloses an intelligent puncturing method. The intelligent puncturing method is characterized by comprising the steps of obtaining a scanning image of a puncture needle for a target lesion region in the puncturing process; recognizing the puncture needle in the scanning image; according to the target position of the puncture needle, drawing a puncturing trajectory; judging whether the puncturing trajectory intersects with the target puncturing region or not, wherein the target puncturing region represents the target lesion region; if the puncturing trajectory intersects with the target puncturing region, controlling the puncture needle to be inserted along the puncturing trajectory until reaching the target puncturing region. The embodiment of the invention further discloses an intelligent puncturing device. According to the intelligent puncturing method and device, intelligent puncturing is achieved, the puncturing efficiency and success rate are improved, and pain of a patient is effectively relieved.

The invention discloses a tumor interventional therapy device, which comprises a guiding catheter, a puncture tube, a needle, an outer sleeve and a push rod, wherein the tail end of the guiding catheter is in threaded connection to the front end of the outer sleeve by virtue of a hard threaded connecting pipe; the guiding catheter is a rubber pipe, and the guiding end of the guiding catheter is of a spherical structure; a plurality of blood suction tubes are arranged in the guiding catheter; each blood suction tube runs through the outer wall of the guiding catheter and is connected to a corresponding gourd-shaped airbag; the puncture tube and the needle are integrally molded, and the puncture tube is connected to the push rod by virtue of a screw thread; the push rod is connected to an armrest by virtue of a connecting rod; a disinfecting cavity is formed in the outer sleeve; a port, which is used for changing disinfecting cotton, is formed in one side of the disinfecting cavity; sliding rails are symmetrically arranged on the inner walls of the upper and lower sides of the outer sleeve; two sides of the push rod are movably connected to the sliding rails by virtue of sliding blocks which are provided with servo devices; and a pressure sensor is additionally arranged in the outer sleeve. When the therapy device disclosed by the invention is used, surrounding tissues can be clearly observed and a puncture depth can be accurately controlled; and the therapy device is convenient to use, high in puncture success rate and high in automation degree.

The invention relates to a three-dimensional positioning guiding gauge for puncture, which consists of a master member and a suite. The master member and the suite have three edges; a face between a first edge and a second edge is a front face, and a face between the second edge and a third edge is a lateral face; the master member and the suite are divided into two symmetrical and equal ends through a zero line, and can be used bidirectionally; and the suite is sleeved on the master member, the inner face of the suite is attached to the outer face of the master member without gaps, the front face and lateral face of the suite correspond to those of the master member, and the suite can slide on the master member back and forth. The three-dimensional positioning guiding gauge is used for improving puncture success rate and accuracy and avoiding puncturing repeatedly to reduce exposure times and radiation damage; and puncture side-open distance, angle degree and puncture depth are accurate further, so that surgical doctors have the visual sense of space in the puncture operation, and the puncture success rate and accuracy are improved. The three-dimensional positioning guiding gauge is suitable for the use and reference of doctors in departments of orthopedics, spine surgery, pain treatment, intervention and neurology, and has the advantages of simple structure, convenient use and popularization, wide application and low manufacturing cost.

The invention discloses a multi-temperature-regulation massaging device for hemodialysis. The multi-temperature-regulation massaging device for hemodialysis has powerful functions and can be used for effectively heating and keeping heat of a punctured blood vessel of a hemodialysis patient and promoting hemangiectasis, and the puncturing success rate is improved; the punctured blood vessel of the patient can be massaged through simple operation, edema liquid of a punctured part is eliminated and the blood vessel is exposed, so that the puncturing success rate is improved and pains of the patient are alleviated. The hematoma of the punctured part of the patient can also be subjected to cooling treatment and blood capillaries are retracted through cold application, so that partial hyperemia and bleeding are alleviated and the limitation of edema is facilitated. The device is used for carrying out hot application and massaging on the punctured parts including internal fistula and the like of the patient in combination with corresponding medicines, and partial blood circulation can be facilitated; the permeability of tissue cells is improved and the medicines can be easily absorbed; the elimination of the hematoma is accelerated and the absorption of the hematoma is promoted; damaged tissues are stimulated to regenerate and scars are softened; an vascular access of the patient is effectively protected and the living quality of the patient is improved.

An artery puncture needle comprises a light-transmission cannula seat, a remaining needle outer cannula, a steel needle seat and a steel needle. A tubular pressure measuring joint is arranged at the rear end of the light-transmission cannula seat, the remaining needle outer cannula is opposite to the pressure measuring joint and arranged at the front end of the cannula seat, the steel needle is disposed on the steel needle seat, a holding groove which is respectively communicated with the remaining needle outer cannula and the pressure measuring joint is formed in the cannula seat, an elastic stop block which can be operated to slide between a puncture position and a pressure measuring position is movably assembled in the holding groove, a pressure measuring channel which runs through transversely is formed on the stop block, and a blood draining hole which is communicated with the holding groove is formed on the cannula seat. The artery puncture needle has the advantages that the artery puncture needle is simple in structure, convenient in operation, capable of preventing blood from spraying outwards, high in puncture success rate, accurate in pressure measurement, convenient in blood collection, and the like.

The invention provides a vein puncture needle which comprises a conduit, a needle probe, a needle holder, a needle handle, and a needle retreating component on the needle handle. The needle retreating component utilizes an operation and control component to control a displacement component to make the needle probe displace in steps and to conveniently allow a second propulsion conduit to enter the proper position of a patient's vein, therefore, raising the success rate of vein puncturing of the puncture needle. The needle retreating component provided by the vein puncture needle has a simple structure and the use of functions is made in a proper order, which not only raises the success rate of vein puncturing of the puncture needle but also effectively protects medical workers from being accidentally injured after the use of the puncture needle.

The invention provides a portable far-infrared limb vascular puncture auxiliary system. The portable far-infrared limb vascular puncture auxiliary system comprises an infrared emitter, an image pickup system and a monitor; the infrared emitter comprises a plurality of infrared LEDs, an aluminum substrate, a condenser lens, an LED constant current control circuit drive board and two direct current power supplies. More than one infrared LED is welded at the front side of the aluminum substrate; the condenser lens is arranged at the front side of the aluminum substrate; the LED constant current control circuit drive board and female contacts of two direct current power supplies are arranged at the back of the aluminum substrate; the image pickup system is an infrared sensitive video camera provided with an infrared low-light lens; and the image pickup system is electrically connected with the monitor. By using the infrared sensitive video camera provided with the infrared low-light lens, even at severe environment, the invisible infrared radiation light can be sensed and converted into a measurable signal to assist the puncture.

The invention discloses an ultrasonic guided puncture and nerve block auxiliary positioning device. The device comprises an adjusting mechanism and a positioning mechanism, the adjusting mechanism iscomposed of a supporting bed plate, a transverse sliding groove, a transverse lead screw, a transverse sliding block, a transverse motor, a reset groove, a headrest, a supporting table top, a displayscreen and a computer host; the transverse sliding groove is dug in one side of the supporting bed plate, the transverse lead screw is rotatably connected into the transverse sliding groove, the transverse sliding block is slidably connected into the transverse sliding groove, the transverse lead screw penetrates through the middle of the transverse sliding block, and the transverse lead screw isin threaded connection with the transverse sliding block. An infrared auxiliary device and a positioning mechanism are arranged; by combining computer integration, a puncture needle and a scanning section can reach a plane more easily, the development effect is improved, information is input in advance when a certain position needs to be punctured, the computer can give a prompt at the position closest to the puncture position, the puncture success rate is increased, and complications and anesthetic dosage are reduced.

The invention provides a positioning auxiliary device for a peripheral arteriovenous puncture indwelling catheter. The positioning auxiliary device for the peripheral arteriovenous puncture indwelling catheter comprises a bottom plate, a support and a positioning structure; and the positioning structure is arranged on one side of the support. According to the positioning auxiliary device for the peripheral arteriovenous puncture indwelling catheter provided by the invention, the positioning structure is arranged and can be used in cooperation with the puncture indwelling catheter; the positioning auxiliary device serves as an auxiliary positioning structure of the puncture indwelling catheter; assistance is provided for practice medical staff; the puncture indwelling catheter is effectively positioned when arteries of a patient are punctured; the practice medical personnel only need to push the puncture indwelling catheter to move; the puncture indwelling catheter does not need to be held by hands to move all the time; then, the direct contact area of the hand and the puncture indwelling catheter is greatly reduced; even if the conditions of hand shaking, hand slipping and the like due to tension occur, the influence on the puncture indwelling catheter can be reduced to the minimum; and therefore, the puncture indwelling catheter always moves in a relatively stable state, so that the puncture success rate is greatly improved.

The invention relates to the field of mechanical facilities, in particular to a fingerstall type ultrasonic probe which is used for coordinating puncture operation. The fingerstall type ultrasonic probe comprises a casing, a connection device and a transducer. The casing comprises a tube-sleeve-shaped fingerstall and a casing body, wherein the casing body is fixed on the excircle side of the fingerstall. A cavity is formed in the casing body, a hole is formed in the bottom of the casing body, the transducer is installed in the casing body, and an acoustic window of the transducer is corresponding to the hole of the casing body. The connection device can move in the circumferential direction of the fingerstall after one end of the connection device is connected with the fingerstall, and the other end of the connection device is fixedly connected with the casing body. The fingerstall type ultrasonic probe is small in size; doctors can perform ultrasound detection and puncture operation simultaneously after they sleeve the probe in their fingers, and thus the operation steps are simplified. During operation, the expected effect can be achieved by slightly moving the fingerstall type ultrasonic probe, and the puncture success rate is improved. The connection device capable of moving in the circumferential direction of the fingerstall is additionally arranged between the casing body and the fingerstall so the detection area of the probe is enlarged and the problem of small probes of being limited in the field of view is solved.

The invention discloses an intraspinal anesthesia position fixation support comprising a support body, a clamping body and a curved rod connected to the support body and the clamping body. The free end of the support body can realize up-down adjustment as well as front-back adjustment. The support is fixed to the side barrier of an operation bed and performs fixation through the clamping body, the curved body enables the support body to move forward by a certain distance, when a patient puts the jaw on the support body, the body of the patient is arched, and the stretching degree of the intervertebral space of the patient is mostly beneficial for puncture operation for intraspinal anesthesia. Up-down and front-back movement of the jaw, up-down movement of footrests and effective fixation on the side barrel of the operation bed are realized. Through the curved rod with certain radian, when the jaw of the patient is put in a jaw holder, the back is arched to facilitate puncture operation of intraspinal anesthesia performed by doctors, so that success rate of puncture in intraspinal anesthesia is increased, and the support is particularly suitable for obese patients and patients having difficulty in intraspinal anesthesia puncture.

The present invention relates to medical detecting device, and is especially one kind of dura mater external pressure detecting mechanism, method and device. The present invention features that the dura mater external pressure signal the dura mater external pressure detecting mechanism detects is first fed to the signal detection unit for filtering and amplifying and then to the signal processing unit for processing in the processor, and the signal processing unit compares the read negative dura mater external pressure value with the set value before outputting the detected dura mater external pressure value and outputting the alarm signal if necessary. The present invention makes it possible to understand the dura mater external pressure easily in epidural anesthesia for successful epidural anesthesia.

The invention discloses a mouse islet separation and purification method. A self-made puncture needle is adopted to reversely puncture a common bile duct and inject collagenase V to digest a pancreatic gland, and inslets are separated and purified by using the combination of density gradient medium centrifugation and manual sorting. Inset density is identified by dithizone staining, and inset activity is identified by AO/PI staining. Inset functionality is detected by a glucose stimulated insulin release experiment. By using the method to extract islets on a large scale, time can be greatly saved, the puncture success rate can be increased, and Ficoll400 formulation time and price can be reduced. In addition, all the yield, purity, activity and function of islets obtained by purification are relatively good, and the method is simple, fast, cheap and efficient.

The invention relates to a novel artery puncture trocar, which comprises a needle tube and a core, wherein one end of the core is connected with a detachable handle, and a core cap is connected on the handle; the needle tube can be penetratively sleeved outside the core in a replaceable way, and tip of the core is exposed out of the needle tube. The novel artery puncture trocar has the beneficial effects of high puncture success ratio, and safer and more convenient puncture.

The embodiment of the invention provides an ultrasonic out-of-plane blood vessel puncture auxiliary robot which comprises an image recognition processing unit used for analyzing and calculating a blood vessel real-time image of a puncture target area and obtaining blood vessel contour shape data and blood vessel center position data; a puncture navigation unit for calculating a preferred punctureposture and a preferred puncture path based on the blood vessel contour shape data and the blood vessel center position data; a motion planning unit used for calculating motor control parameters required for adjusting the puncture needle from the current posture to the optimal puncture posture based on the optimal puncture path; and a motion control unit used for controlling the motor driving unitbased on the motor control parameters, driving the puncture needle to move to the optimal puncture posture and carrying out puncture along the optimal puncture path. Wherein the units are sequentially connected. According to the embodiment of the invention, the complication risk of an out-of-plane puncture technology can be effectively avoided, and the puncture success rate is effectively improved.

The invention relates to a medical device and disclosed is a subcutaneous buried puncture device for arteriovenous puncture in hemodialysis, including an arterial end, a venous end, a puncture island,a venous puncture part, an arterial puncture part and a vasospasm, the venous puncture part and the arterial puncture part are arranged on the puncture island, a layer of puncture film is detachablyinstalled on the top of the venipuncture part and the arterial puncture part. The venipuncture part is communicated with the venous end, the arterial end is communicated with the arterial puncture part, and the blood vessel loop between the venipuncture part and the arterial puncture part is communicated, so that the arteriovenous short circuit can be realized, and sufficient blood flow can be ensured after the puncture island is connected. The device is implanted subcutaneously in the forearm of the patient and consists of an arterial end, a venous end, a puncture island and a vasospasm to replace a patient who currently needs an artificial blood vessel. Compared with the prior art, the invention has the advantages of convenient puncture, effective prevention of infection, long service life, replaceable puncture membrane and the like.

The invention discloses an arterial blood gas collector special for a child, and relates to the technical field of medical instruments. The gas collector solves the problem that the child is active and uncooperative in the arterial blood collecting process, the holding puncture may break the artery easily and leads to puncture failure, even forming local hematoma. The arterial blood gas collectorincludes a syringe, an extension hose and a needle body. The needle body portion is provided with a needle wing convenient to operate and flexible to move, and an anticoagulant is stored in the syringe. One end of the extension hose is fixedly connected with the needle body, and the other end is provided with a connector connected to a syringe port in the insertion mode. The gas collector has theadvantage that a medical worker can conveniently collect the arterial blood of the child, enhance the success rate of the arterial blood collection of the child, and reduce the pains suffered by the child during the blood collection process.