42 results about "Nerve Blockade" patented technology

An apparatus for locating and anesthetizing a nerve enables an anesthesiologist to perform a nerve blockade procedure without an assistant. An anesthetic-filled syringe is releasably mounted to a hands-free, foot-actuated, hydraulic syringe controller. An electric current generator is mounted to the syringe controller and operatively connected to a needle of the syringe. A hands-free, foot-actuated current generator controller determines an amperage of an electrical stimulus output to the needle. The current generator includes audible and visual displays for informing the anesthesiologist of the output amperage. Because the syringe controller and current generator controller allow hands-free operation, an anesthesiologist can continuously use both hands to manipulate and hold the needle in a patient.

The invention relates to a drug delivery device for providing local analgesia, local anesthesia or nerve blockade at a site in a human or animal in need thereof, the device comprising a fibrillar collagen matrix; and at least one drug substance selected from the group consisting of amino amide anesthetics, amino ester anesthetics and mixtures thereof, the at least one drug substance being substantially homogeneously dispersed in the collagen matrix, and the at least one drug substance being present in an amount sufficient to provide a duration of local analgesia, local anesthesia or nerve blockade which lasts for at least about one day after administration.

The invention discloses a handheld ultrasonic guidance nerve block robot, which comprises a clamping mechanism used for clamping an ultrasonic probe, a straight line position regulation mechanism, anarc line posture adjustment mechanism, a radial movement puncture end and a puncture control system, wherein the clamping mechanism, the straight line position regulation mechanism, the arc line posture adjustment mechanism, the radial movement puncture end and the puncture control system are connected in sequence; and the puncture control system is independently connected with the clamping mechanism, the straight line position regulation mechanism, the arc line posture adjustment mechanism and the puncture end to output a control instruction. The handheld ultrasonic image guidance nerve blockrobot with a light structure is used for assisting a doctor in finishing high-accuracy nerve block.

An endoscopic procedure for the parasympathetic and sympathetic denervation of the nerves of the ovaries and uterus for management of endocrine dysphoric disorders. The tissues of selected inferior mesenteric and pelvic nerves are heated via introduction of radiofrequency energy at sufficient power and time to induce complete or partial nerve blockade while leaving the supporting tissue structurally intact. In some embodiments, the suspensory ligament of the ovary, the ovarian ligament, and/or the uterosacral ligament are heated to a range of 45° C. to 65° C. for a period of about 5 seconds to about 60 seconds.

The invention relates to a drug delivery device for providing local analgesia, local anesthesia or nerve blockade at a site in a human or animal in need thereof, the device comprising a fibrillar collagen matrix; and at least one drug substance selected from the group consisting of amino amide anesthetics, amino ester anesthetics and mixtures thereof, the at least one drug substance being substantially homogeneously dispersed in the collagen matrix, and the at least one drug substance being present in an amount sufficient to provide a duration of local analgesia, local anesthesia or nerve blockade which lasts for at least about one day after administration.

The invention discloses a nerve block anesthesia medicine injection pressure measurement alarm device under ultrasound. The device comprises an injector, a pressure sensor, a constraint unit and a mounting base; a nerve block puncture needle is connected to a liquid medicine outlet of the injector through a three-way joint; the pressure sensor is connected with the three-way joint through a connecting mechanism; a single-chip microcomputer and an alarm unit are installed on the side face of the mounting base, a power source is arranged in the mounting base, and the single-chip microcomputer iselectrically connected with the pressure sensor through a telescopic cable; the binding unit comprises a hinge and binding belts; the binding belt is hinged to the mounting base through hinges, the two binding belts are symmetrically arranged up and down, and the ends of the two binding belts are connected through an inserting unit.The nerve block anesthesia medicine injection pressure measurement alarm device is good in use flexibility, convenient to use in the field, high in practicability and convenient to carry.

The invention provides an ultrasound-guided nerve block puncture needle, which can enhance ultrasonic reflection and further clearly image. The nerve block puncture needle comprises a needle tip guiding area, a needle body, a needle base, an extension tube and a needle tail, wherein the needle tip guiding area comprises a puncture end and a guiding part, and a plurality of annular grooves arranged in a linear mode are formed in the shallow surface layer of the tube wall of the guiding part. The puncture needle has remarkably improved ultrasound reflection and clearer developing effects, and the safety and the effectiveness during puncture are effectively improved.

The invention provides a foot pump type injection pump special for nerve block under ultrasonic guidance, which comprises foot pumps and an injection structure, the injection structure drives a needle cylinder to push or withdraw through the cooperation of a sealing cavity and hydraulic pressure, the number of the foot pumps is two, the two foot pumps respectively pressurize and depressurize the injection structure, and the two foot pumps correspond to the push and withdraw actions of an injector; according to the device, an assistant is not needed, operation is completed by one person independently, ultrasonic nerve positioning and puncture operation are carried out through the two hands respectively, meanwhile, liquid medicine injection and withdrawing are carried out through the action that the foot treads or lifts the pedal, and the work content of a second person is omitted; the size is small, the cost is low, and electronic equipment is not needed.

The invention discloses an angle-adjustable ultrasound-guided nerve block puncture positioning device, which includes a fixing plate, an installation seat is arranged on the left side of the fixing plate, and an ultrasonic probe is arranged on the left side of the installation seat. The front of the fixed plate is fixedly connected with a fixed column, the front of the fixed column is fixedly connected with a fixed ring, the back side of the fixed ring is fixedly connected with a bracket, the inner side of the fixed ring is fixedly connected with a fixed gear, and the fixed plate The back side of the motor is fixedly connected with a motor, the top of the fixed plate is provided with a control switch electrically connected with the motor, the front key of the motor is connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with a driving gear. The ultrasound-guided nerve block puncture positioning device has a novel structure and an ingenious conception, and can freely adjust different angles of the puncture head during puncture, so as to improve the accuracy of the needle insertion angle of the puncture head and improve the puncture quality.

The invention discloses a medical nerve block needle with a resistance feedback structure and a use method thereof, and particularly relates to the technical field of medical treatment, the medical nerve block needle comprises a needle body, a sealing tube is arranged in the needle body, the left end of the sealing tube is fixedly connected with the right end of a needle tip, a plurality of medicine openings are formed in the outer surface of the sealing tube, and the right end of the needle tip is fixedly connected with an elastic structure. The operation of compressing the elastic structure can be realized by increasing the puncture resistance of the needle tip, so that the sealing tube can be retracted into the needle body in the puncture process, the problem of blood backflow is prevented, meanwhile, the problem of failure caused by drug pollution is avoided, and when the elastic structure deforms due to resistance, the movement of a first piston can be controlled under the action of air pressure, then the resistance feedback effect can be achieved, timely adjustment of medical staff is facilitated, and the medical nerve block needle is simple in structure, easy to operate, low in manufacturing cost and good in use value.

The invention discloses a preparation method of a medicine porous sustained-release body. The method comprises the following steps of a) preparing a micron-sized porous sphere structure; b) combining the porous sphere structure with medicine molecules; and c) drying the combination of the porous sphere structure and the medicine molecules to obtain the medicine porous sustained-release body, wherein the porous sphere structure comprises a uniform macroporous sphere structure, a uniform mesoporous sphere structure and a non-uniform porous sphere structure. Correspondingly, the invention further provides the medicine porous sustained-release body prepared by using the preparation method. After entering the body, the medicine porous sustained-release body effectively realizes development under ultrasound by utilizing the scattering effect of the medicine porous sustained-release body on mechanical waves; and the action position of the medicine can be accurately positioned through ultrasonic development of the medicine porous sustained-release body, the action time of the medicine can be prolonged through the sustained-release effect of the medicine porous sustained-release body, and the accuracy of nerve block treatment and the bioavailability of the medicine are improved.

The invention relates to the field of medical supplies and particularly relates to a double-cavity injector capable of being used for ultrasonic guided nerve block. The injector comprises an injectorbody, an injector shunt end and an extension tube, wherein the injector shunt end consists of a first shunt tube, a second shunt tube, a base, an adjusting disc and an injector mastoid; the first shunt pipe and the second shunt pipe are communicated with the base, the base is connected with the mastoid in a sealed mode, the adjusting disc is provided with a first hole and a second hole respectively, and the adjusting disc is adjusted to rotate through an adjusting handle, so that the first shunt pipe and the second shunt pipe are communicated with the first hole and the second hole respectively, and on-off adjustment is achieved; the first shunt tube and the second shunt tube are respectively communicated with the medicine bag and the injector body. According to the injector, the hidden danger of injection pollution caused by replacing the injector back and forth in the processes of extracting and injecting normal saline and locally anesthetizing liquid medicine during nerve block under the guidance of ultrasonic waves is effectively solved.

The invention belongs to the technical field of medical instruments, and particularly relates to a nerve block medicine injection system capable of adjusting injection resistance. The nerve block medicine injection system comprises a workbench, an injection device, a main machine and a pedal device, the injection device and the main machine are installed on the workbench; the injection device comprises a hollow fixing box, a positioning assembly for fixing an injector and a driving assembly for pushing injection, and the positioning assembly comprises a pressure sensor for monitoring injection resistance; the main machine is used for receiving and displaying injection pressure information; and the pedal device is connected with the driving assembly and used for controlling the injection mode and speed. The defects in the prior art are overcome, the resistance in the injection process is displayed in real time, a single person is helped to operate, and the safety of nerve block medicine injection is improved.

The invention discloses an ultrasound developable high-adhesion drug sustained-release body for nerve block. The drug sustained-release body is a micron-order sphere structure of a medical material, the diameter of the sphere is 1-50 [mu] m, the sphere adhesion material realizes in-vivo adhesion through surface modification of adhesion molecules, and under the ultrasonic guidance, the development under the ultrasonic is realized by utilizing the scattering effect of the device on mechanical waves. The ultrasonic developable drug sustained-release body can accurately locate the action position of the drug, the action time of the drug can be prolonged through the adhesion and sustained-release effects of the drug sustained-release body, and the accuracy of nerve block treatment and the bioavailability of the drug are improved.

The invention discloses a nerve block system based on ultrasonic intelligent recognition, the nerve block system comprises an ultrasonic probe, an insertion needle head is arranged on the ultrasonic probe, and an anti-shake progressive mechanism is connected to the ultrasonic probe. According to the invention, the speed-limiting liquid discharging mechanism and the anti-shaking progressive mechanism are matched, and position stabilization and shake prevention during liquid medicine injection and flow speed reduction of the injection amount are realized; during specific implementation, the positions of the ultrasonic probe and the insertion needle head are fixed through the anti-shake progressive mechanism before the insertion needle head goes deep into the body of a patient, and after fixation is completed, the anti-shake progressive mechanism drives and controls the amount of the insertion needle head going deep into the body of the patient, meanwhile, the position of the insertion needle penetrating into the body of the patient is detected in real time through the ultrasonic probe and is imaged on an external imaging device to prevent the insertion needle from penetrating into the position mistakes, then liquid medicine is conveyed towards the inserted needle head through speed-limiting liquid discharging mechanism, and when the liquid medicine enters the insertion needle head, the conveying force of the liquid medicine is reduced so as to prevent the liquid medicine from rapidly impacting the deep part of the insertion needle head.

The invention discloses a sound control medicine injector which comprises an extension tube, a sound control receiver and an injection booster, one end of the extension tube is a liquid medicine outlet and is connected with a needle, the other end of the extension tube is a liquid medicine inlet and is connected with one end of the injection booster to form a medicine flowing channel, and the sound control receiver is connected with the other end of the injection booster. And the voice control module is used for receiving a voice control instruction and controlling the injection booster to perform medicine injection. By means of the device and the method, withdrawing and medicine injection work needing cooperation of two persons in the conventional nerve blocking operation process can be completed through single-person voice control, manpower expenditure is greatly reduced, operation time is saved, nerve blocking efficiency is improved, the more accurate blocking effect is achieved, and the device and the method have wide clinical prospects.