11 results about "Intravenous needles" patented technology

The utility model relates to the technical field of intravenous needle wing production, in particular to intravenous needle wing production equipment, which overcomes the defects of intravenous needle wing production in the prior art and comprises a box body, a first motor is fixedly connected to one side of the box body, a second rotating rod is arranged on one side of the first motor, one end of the second rotating rod is fixedly connected with a bottom plate, and the other end of the second rotating rod is fixedly connected with the bottom plate. The outer ring of the bottom plate is rotatably connected with a crown gear, the friction force between the crown gear and the bottom plate is large, one side of the bottom plate is fixedly connected with a pair of fixing plates, one sides of the pair of fixing plates are fixedly connected with a sleeve, one side in the sleeve is rotatably connected with a bevel gear, and the bevel gear is in meshed connection with the crown gear; one end of the bevel gear is fixedly connected with a screw rod, the screw rod penetrates through the sleeve and the fixing plate and is in clearance fit with the interior of the sleeve and the fixing plate, and the surface of the screw rod is in threaded connection with a pressing plate.

The invention relates to the technical field of medical instruments, in particular to a medical medicine quantitative infusion device which comprises an intravenous needle, a Luer taper liquid medicine filter, a bottle stopper puncture outfit, a Murphy type drip chamber, an infusion hose and a flow rate adjusting mechanism. An automatic liquid stopping mechanism is arranged in the Murphy type drip chamber and comprises a cylindrical shell fixedly connected to the inner bottom wall of the Murphy type drip chamber. By arranging the flow speed adjusting mechanism, the abutting arc block can be driven to stably move along the guide rod by rotating a flow speed adjusting knob, an infusion hose is accurately extruded to change the diameter of a pipeline, fine adjustment of the infusion flow speed of liquid medicine is achieved, and compared with a traditional speed regulator, the self-locking characteristic is better; the problem that the infusion speed is too high or too low due to poor stability of a speed regulator is effectively solved, the infusion speed can be flexibly set according to the medicine type, the illness state of a patient and the tolerance degree, the accuracy of the medicine infusion dosage and speed is guaranteed, and the medicine treatment effect is improved.

The application discloses a full-automatic processing production line for a venous needle, which comprises a hose conveying mechanism, a first glue applying mechanism, a second glue applying mechanism, a needle head butt joint mechanism, a butt joint head butt joint mechanism and a cap mechanism, wherein the hose conveying mechanism is sequentially connected with the first glue applying mechanism, the needle head butt joint mechanism, the second glue applying mechanism, the butt joint head butt joint mechanism and the cap mechanism, and the above mechanisms are all installed on a table top; automatic assembly of the venous needle is realized, a cover is sleeved on the butt joint head of the venous needle, and meanwhile, the processing efficiency of the venous needle is improved.

The invention relates to the technical field of emergency infusion equipment, in particular to an infusion bottle infusion device and system, and aims to solve the problems that a patient needs to hold an infusion bottle or use a movable infusion support during infusion, inconvenience is caused, and safety risks such as blood backflow and falling down are caused. The device comprises a drip cup with an elastic diaphragm and a big arm fixing assembly, wherein the fixing assembly comprises a fixing belt, an electrical box and a fixing frame, and a micro air pump, an air pressure valve, a control chip and a corresponding sensor are arranged in the electrical box; the system processes sensor data through an algorithm and adjusts the air pressure of an air chamber, so that the liquid outlet pressure of a vein needle is not lower than the sum of the venous pressure of a patient and the safety margin all the time, and meanwhile, the dripping speed is kept stable. The infusion apparatus is portable, light, suitable for narrow spaces such as toilets, capable of preventing blood backflow, accurate in dripping speed and suitable for emergency treatment and common ward scenes, and the moving freedom degree of a patient and infusion safety are improved.

An intravenous needle insertion device is described. The device includes a body having a front end, a back end, a bottom surface and a top surface sloping downward toward the front end. The device further includes a vein trough recessed within the bottom surface of the body, a needle trough recessed within the top surface of the body, a puncture window at the front end of the body, where the vein trough and the needle trough both lead into the puncture window.

The disposable sensitive blood return vacuum blood taking needle comprises a vein needle, a needle handle and a catheter, and further comprises a sensitive blood return device, a blood taking needle and a cup-shaped blood taking needle waiting device, the blood taking needle is directly fixed to the output end of the sensitive blood return device, and the blood taking needle waiting device is arranged on the blood taking needle in a sleeved mode. The rear portion of the blood taking needle is fixed to the bottom of the rear end of the blood taking needle waiting device, and the vein needle is connected with the input end of the sensitive blood returning device through a catheter. According to the technical scheme, the blood sampling flow is increased, the blood pressure resistance is reduced, and the sensing surface of the blood return cap is enlarged, so that the response time of blood return of the blood vessel and upward bulging of the blood return cap after the vein needle is correctly inserted into the blood vessel is shortened, and medical staff safely operate the vein needle to be inserted into the blood vessel of a patient and insert a blood sampling bottle into a blood sampling needle waiting device. The blood taking needle can be safely inserted into the blood taking bottle, the vein needle protecting sleeve and the blood taking needle sealing latex cap can protect the blood taking needle from being polluted, and the blood taking needle waiting device can prevent medical staff from being scratched under rapid and busy work.

The utility model discloses a blood taking needle assembling machine material shortage detection device which comprises a positioning tool arranged on a conveying mechanism and a fixing frame arranged above the conveying mechanism in a striding mode, and a plurality of positioning grooves are transversely formed in the upper surface of the positioning tool at intervals. The positioning groove comprises an arc section matched with a needle seat of the intravenous needle and a vertical section allowing a fin of the intravenous needle to vertically extend out, and the positioning groove is used for clamping the needle seat and enabling the fin to vertically face upwards; a plurality of U-shaped groove type photoelectric sensors are arranged at the bottom of the fixing frame, the number of the U-shaped groove type photoelectric sensors is equal to that of the positioning grooves, and the U-shaped groove type photoelectric sensors and the positioning grooves are arranged in a one-to-one correspondence mode. The opening direction of each U-shaped groove type photoelectric sensor faces the corresponding positioning groove, and the light path of each U-shaped groove type photoelectric sensor intersects with the motion trail of the fin in the positioning groove. According to the utility model, the vein needle can be accurately detected, the product yield and the equipment stability are improved, and the manual intervention cost is reduced.

The utility model is applicable to the technical field of medical instruments, and provides a disposable precise filtering infusion apparatus, which comprises an infusion tube, a bottle stopper puncture outfit, a drip chamber and a vein needle, the upper end of the infusion tube is fixedly connected with the bottle stopper puncture outfit, and the lower end of the infusion tube is fixedly connected with the vein needle. The infusion apparatus comprises an infusion tube, a drip chamber and a flow regulator are arranged on the infusion tube in a matched mode, and the infusion apparatus is characterized in that a liquid medicine filtering bin is further arranged on the infusion tube in a matched mode, the liquid medicine filtering bin is communicated with the infusion tube, a conical hopper is fixedly connected to the inner bottom end of the liquid medicine filtering bin, and the diameter of the lower end of the conical hopper is larger than the inner diameter of the infusion tube. A plurality of filtering holes which are uniformly distributed are formed in the conical hopper, a liquid medicine filtering membrane is fixedly arranged on the inner wall of the conical hopper, a backflow pipe is fixedly connected to the side wall of the liquid medicine filtering bin, and a temporary storage bottle is fixedly connected to the other end of the backflow pipe. The filter has the advantages of effectively filtering insoluble particles and preventing the insoluble particles from blocking the filter membrane.

In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extracorporeal circuit is disclosed, the method and system comprising: establishing acoustic wave resonance in a lateral dimension of at least a portion of a tubing line associated with the extracorporeal circuit through which the fluid flows; monitoring a phase signal of the resonant acoustic wave; and identifying an occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from an expected fluid flow characteristic. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.

In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extra-corporeal circuit is disclosed, which includes establishing an acoustic wave resonance across a transverse dimension of at least a portion of a line associated with the extra-corporeal circuit through which the fluid flows, monitoring a phase signal of the resonant acoustic wave, and identifying occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from the expected fluid flow signature. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.

The utility model belongs to the technical field of medical apparatus and instruments, disclose a kind of infusion connector fixing patch, including fixed patch, one side of the fixed patch is provided with connector fixed part, for fixing infusion connector, another side of the fixed patch is provided with release paper, tear release paper from fixed patch, to be affixed on human skin with fixed patch;Wherein, the connector fixed part is at least one of adhesive member and limiting structure;The fixed patch is provided with gap part, for the catheter connected with infusion connector to pass through.The utility model can realize the integrated fixing of catheter while realizing the overall effective fixing of the infusion connector of remaining intravenous needle, to fundamentally solve the infusion safety hazard of displacement or even falling caused by extrusion, scratching of infusion connector.