37 results about "Infusion catheter" patented technology

An implantable intratumoral infusion catheter comprises an intratumoral catheter formed of an elongated body having an internal lumen. An anchor mechanism is coupled to the elongated body. The anchor mechanism is configured to interact with a tumor or surrounding tissue to retain the catheter in the tumor.

An infusion system comprising: a device for delivering fluid to a tissue of the user; a hub engaging the device for delivering fluid, the hub including an introducer needle for introducing an infusion catheter or an analyte sensor into the tissue of the user, the hub configured to be removable by the user; and an activation mechanism for moving the hub toward the user to thereby cause the introducer needle to be inserted into the tissue of the user.

An insertion device configured to implant a first medical device and a second medical device in a user. The first medical device may be a fluid delivery cannula configured to deliver a fluid (e.g., insulin) to the user. The second medical device may be an analyte sensor (e.g., a glucose sensor) configured to detect a physiological characteristic of the user (e.g., a glucose level). The insertion device may be configured to be worn by the user. The insertion device includes a first linkage assembly configured to extend and retract a first insertion needle to implant the first medical device and a second linkage assembly configured to extend and retract a second insertion needle to implant the second medical device. The insertion device includes a user input device configured to cause the insertion device to initiate the implantation when activated by the user.

The present application relates to the technical fields of deep vein catheterization infusion, in particular to a constant temperature control speed device for deep vein catheterization infusion, comprising an infusion catheter head and an infusion tube, one side of the infusion catheter head is fixedly connected with one end of the infusion tube. The present application sets a piston frame structure with spiral flow guide grooves inside the infusion tube, changes the fluid dynamics behavior of traditional plunger type propulsion, when the piston frame reciprocates, the liquid medicine forms spiral jet flow under the guidance of the spiral flow guide grooves, forced fluid generates circumferential rotation, effectively destroys the stationary state of the pipe wall boundary layer, converts the axial thrust into rotational shear force, not only reduces the flow resistance, but also eliminates the stagnant zone at the front end of the piston, realizes uniform delivery of the whole cross section, makes the liquid medicine always maintain a dynamic mixing state during the pushing process, avoids density stratification and sedimentation, especially suitable for the infusion of fat emulsion, amino acid and other easily separated nutrient solutions, greatly improves the stability of the infusion.

The application discloses a self-adaptive vena cava occlusion balloon ventricular assist system, which comprises a balloon catheter device and a control device. The balloon catheter device comprises a catheter, a balloon arranged on the catheter and close to the proximal end of the catheter, and a joint arranged on the distal end of the catheter. The catheter is provided with a first pressure cavity, a second pressure cavity and a liquid delivery cavity. The first pressure cavity is used for connecting the first blood pressure measuring port and the joint and is connected with the first blood pressure sensor through a first catheter. The second pressure cavity is arranged on the catheter in a lengthwise direction and is used for connecting the second blood pressure measuring port and the joint and is connected with the second blood pressure sensor through a second catheter. The liquid delivery cavity is used for connecting the inside of the balloon and the joint and is connected with a liquid delivery pump through a liquid delivery catheter. A micro pressure sensor is attached to the outer wall of the balloon, and a signal line led out from the micro pressure sensor is connected with a signal acquisition module through a signal extension line. The application can adjust the pressure of the balloon on the blood vessel wall during occlusion according to the change of the vena cava diameter, improve the occlusion effect and avoid damaging the blood vessel.

According to the technical scheme, the nursing infusion catheter marking piece is characterized in that a glass plate is arranged on the top face of a protection box, a storage groove is formed in the protection box, a first inlet and outlet is formed in one side of the protection box, and a lifting groove is formed in the top face of the protection box; the protection assembly is arranged in the lifting groove and used for protecting the information cards from falling out, the information cards placed in the protection box can be seen through a glass plate by arranging the glass plate, the information cards in the protection box can also be well protected, and the information cards can be just stored in the storage groove by arranging the storage groove. The information card can enter and exit from the protection box through the arrangement of the first entrance and exit, the information card can be closed in the storage groove through the arrangement of the protection assembly, the information card can be well prevented from falling out accidentally, and the information card can be prevented from falling out through the arrangement of the protection block.

The invention provides a multi-channel composite connection monitoring pipeline structure integrated with NO infusion. The multi-channel composite connection monitoring pipeline structure comprises an infusion catheter, an oxygen input connector, a rotary conversion connector, an NO injection tee joint, a gas sampling tee joint, an oxygen flow sensor and a mixed gas flow sensor. NO is injected into the infusion catheter through the NO injection tee joint and is mixed with oxygen in the infusion catheter, the gas sampling tee joint is located on the downstream of the first connecting pipe of the infusion catheter to obtain stable mixed gas for real-time concentration monitoring, and the two flow sensors are used for monitoring the oxygen and the gas flow after the NO and the oxygen are mixed in real time respectively. The rotary adapter is quickly compatible with a nasal catheter, a mask and an extracorporeal circulation related interface, so that cross-scene seamless connection of intraoperative and postoperative NO treatment is realized. According to the invention, the frequency of pipeline replacement is reduced, the risks of gas leakage, misconnection and pollution are reduced, the stability and controllability of oxygen and NO gas delivery are improved, and the safety and effectiveness of NO infusion are improved.

This invention discloses a five-cavity urethral infusion catheter specifically designed for prostatectomy. The catheter includes a tube body with five independent cavities: a urination cavity for draining urine, distally connected to a drainage orifice; a urethral infusion cavity for infusing medication, distally connected to a urethral infusion orifice; a first balloon inflation cavity, distally connected to a first balloon for fixation in the bladder trigone; a second balloon inflation cavity, distally connected to a second balloon for urethral closure; and a third balloon inflation cavity, distally connected to a third balloon for compressing the prostatectomy wound. The third balloon, located between the first and second balloons, is apple / pear shaped and, when inflated, conforms to the prostatectomy wound. This invention, through its innovative three-balloon design and five-cavity structure, solves problems such as incomplete postoperative hemostasis and difficulty in medication infusion. The specially designed apple / pear shaped balloon can precisely compress the wound, and in conjunction with the medication infusion channels, significantly improves surgical outcomes.

The invention discloses improved ultrafiltration heat preservation equipment, and relates to the technical field of medical instruments. The improved ultrafiltration heat preservation equipment comprises an ultrafiltration pipeline, an ultrafilter and a temperature control device, the ultrafiltration pipeline comprises an infusion catheter and a liquid outlet catheter; the liquid inlet end of the ultrafilter is communicated with the infusion catheter, the liquid outlet end of the ultrafilter is communicated with the liquid outlet catheter, the infusion catheter is suitable for inputting blood into the ultrafilter, and the liquid outlet catheter is suitable for outputting the blood filtered by the ultrafilter; the temperature control device is communicated with the liquid outlet catheter and used for adjusting the blood temperature. The structure of the improved ultrafiltration heat preservation equipment is improved, the temperature control device is used for controlling the blood temperature, the blood temperature can be kept within the normal range, arrhythmia and endangering the life of a child patient due to the fact that the body temperature of the neonate is rapidly decreased after improved ultrafiltration are avoided, the safety of improved ultrafiltration is greatly improved, meanwhile, operation is simplified, and the cost is reduced. And medical personnel do not need to adopt other operations to increase the body temperature of the child patient.

Systems and methods for treatment of vascular lesions. The system includes a drug-eluting distal portion of a drug-eluting catheter and a balloon of a balloon catheter configured for positioning with a vascular lesion. The method entails securing the drug-eluting distal portion to the inner wall of a blood vessel with the balloon, and delivery of therapeutic agents into the blood vessel wall while the drug-eluting distal portion is held against the wall of the blood vessel by the balloon. The distal infusion portion of the drug infusion catheter is first located within the lesion. After the drug infusion portion is in position, the balloon of the balloon catheter is translated into the lesion and inflated to press the drug-eluting portion into contact with the blood vessel wall and a therapeutic agent is delivered through the drug-eluting portion.

This invention provides a ureteroscopic irrigation catheter, belonging to the field of medical device technology. The ureteroscope includes a scope body and a tubing. An imaging probe is installed at the end of the tubing. An infusion catheter is inserted through the tubing, and the gap between the catheter and the inner wall of the tubing forms a return channel. The inner wall of the catheter is equipped with a spiral flow-guiding structure to generate centrifugal force to evenly disperse the water flow. This invention systematically solves the problems of thermal damage and visual interference in ureteroscopic holmium laser lithotripsy through fluid dynamics optimization and a dual-channel drainage structure, combining clinical safety and ease of operation.

Described herein are devices, systems, and methods for treating a patient including at least one infusion catheter having a proximal end with a hub, a distal end with a distal tip, and a lumen extending from the proximal end to the distal tip. The device includes a connector body having a first connector for fluidly coupling and releasably connecting to the hub of the at least one infusion catheter, a second connector for fluidly coupling and releasably connecting to at least one manual syringe pump, and a passive pressure-controlled mechanical flow regulator for regulating the flow of fluid supplied to the infusion catheter by manual pumping action of the at least one manual syringe pump and delivered by the infusion catheter into the patient's vascular system. The mechanical flow regulator may be configured to deliver a therapeutic agent or a second fluid supplied under pressure by pumping action of the at least one manual syringe pump into and through the lumen of the infusion catheter at a desired infusion rate.

An infusion system is disclosed comprising: a device for delivering insulin into tissue of a user; and a cartridge assembly including an integrated infusion catheter and CGM sensor subassembly and an introducer needle for introducing the integrated infusion catheter and CGM sensor subassembly into the tissue of the user, wherein the cartridge assembly configured to move from (a) first position, wherein the integrated infusion catheter and CGM sensor subassembly is in a first position above the tissue of the user to (b) a second position, wherein the integrated infusion catheter and CGM sensor subassembly is in a deployed position inserted into tissue of the user.

The utility model discloses an infusion port butterfly needle fixing device, and relates to the field of butterfly needle fixing. In the prior art, a round hole is formed in the middle of the butterfly needle fixing layer and used for fixing an injection seat protruding upwards in the skin, the operation of padding aseptic cotton can be avoided, a groove is further formed in the butterfly needle fixing layer, located below the round hole and matched with an infusion catheter, and a protrusion is arranged in the middle of the application layer and used for fixing the injection seat. A containing cavity used for containing the upwards-protruding skin implanted into the infusion port is formed in the protrusion. According to the infusion port butterfly needle fixing device, the adsorption layer is designed above the containing cavity of the adsorption fixing layer, and errhysis and exudate can be absorbed in time; the needle body fixing groove and the infusion catheter fixing groove communicated with the needle body fixing groove are formed, it can be guaranteed that the butterfly-shaped needle is stably arranged in the adsorption fixing layer, the fixing effect is good, meanwhile, the application layer is provided with the butterfly-shaped needle through hole, the upper portion of the butterfly-shaped needle penetrates through the through hole, and application is smoother.

An infusion system is disclosed comprising: a device for delivering insulin to a user, the device including a reservoir and a micropump for pumping the insulin from the reservoir into tissue of a user; and a cartridge for securing a cartridge insert that includes (a) an infusion needle configured to infuse the insulin and introduce a CGM sensor into the user or (b) an introducer needle for introducing an infusion catheter and the CGM sensor into the user, the cartridge configured to move from (1) a first position, wherein the infusion needle or an introducer needle is above the tissue of the user to (2) an second position, wherein the infusion needle or the introducer needle is in a deployed position inserted into tissue of the user, wherein the cartridge includes a locking mechanism to lock the cartridge insert into the cartridge.

A device for delivering medication to a user. The device includes an insertion needle for penetrating tissue of the user and deploying an infusion catheter and / or a CGM sensor into the user, the insertion needle having a shape and geometry that are configured to decrease penetration forces and minimizes footprint on the user's tissue during insertion, thereby reducing the discomfort or pain induced due to needle insertion, the insertion needle comprising: a channel along a length thereof for carrying and deploying the infusion catheter and / or CGM sensor into the user: first and second ledges that define a first opening to the channel that extends along a length of the insertion needle, the first and second ledges define a ledge plane: a first bevel surface toward a distal end of the insertion needle, the first bevel surface extends from the first and second ledges, the first bevel surface defines a second opening to the channel that enables the infusion catheter and / or CGM sensor to be deployed through the second opening: and a second bevel surface at a distal end of the insertion needle adjacent the first bevel surface, the second bevel surface configured as a tip for penetrating the tissue of the user.

The application discloses a kind of infusion catheter flush pipe device, including processing installation carrier, control panel integrated group and bolus control assembly are provided outside the processing installation carrier, bolus syringe locking assembly and locking type response component are provided inside the processing installation carrier, the control panel integrated group is signal connected with the bolus syringe locking assembly and the locking type response component;After flush pipe selected command is input to flush pipe dynamic switching module by the sub-item touch module set in control panel integrated group, dynamic screen display module screen display prompts operator to select the injection push syringe corresponding to current selected command, displacement sensing unit obtains the action range of telescopic advancing mechanism, pressure sensing response unit obtains the pressure applied by syringe clamping, whether the current inserted syringe specification meets the corresponding requirement of flush pipe or seal pipe entered by flush pipe form command entry module, can effectively reduce the probability of misoperation of medical staff.

The utility model relates to the technical field of stamping dies, and discloses a stamping die for producing an automobile brake disc, which comprises a stamping machine seat, a stamping machine frame is fixedly connected to the upper surface of the stamping machine seat, a support frame is fixedly connected to the upper surface of the stamping machine frame, and a driving motor is fixedly connected to the inner bottom wall of the stamping machine frame. The utility model discloses a stamping die for producing an automobile brake disc. A punching rack, a supporting frame, a driving motor, a cooling fan, a lower punching die, cooling fins, a hydraulic cylinder, an upper punching die, a punching male die, an auxiliary stabilizer bar, a buffer spring, a liquid storage tank, a liquid level observation window, a liquid pump, a connecting pipe, a first telescopic pipe, a cooling coil, a second telescopic pipe, a liquid conveying guide pipe and an electromagnetic valve are arranged in a matched mode. And the effect of cooling the upper stamping die and the lower stamping die in the stamping process of the automobile brake disc is achieved, the stamping stability of automobile brake disc production is improved, and meanwhile the using safety and the stamping precision of the stamping dies are enhanced.

1. The name of the design product: vertical infusion pump. 2. The use of the design product: mechanical and electronic integrated control device, which achieves the purpose of controlling the infusion speed by acting on the infusion catheter. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention belongs to the technical field of medical instruments, and particularly relates to a blood transfusion apparatus with a blood bag protection function, which comprises a first transfusion catheter, a flow regulator is arranged on one side of the first transfusion catheter, one end of the first transfusion catheter is communicated with a dropper, and the other end of the dropper is communicated with a second transfusion catheter. One end of the second infusion catheter is provided with an infusion needle, and one end of the first infusion catheter is communicated with a puncture needle. The device further comprises a blood bag protection assembly. The blood bag protection assembly comprises a protection cylinder, the inner cavity wall of the protection cylinder is slidably connected with a sliding block, and the puncture needle penetrates through one side of the sliding block and is fixedly connected with the sliding block. By means of the blood bag protection assembly, when a medical worker pierces a puncture needle into a blood transfusion opening of a blood bag, an auxiliary guiding effect is provided for piercing operation of the medical worker, it is ensured that the puncture needle pierces at a vertical angle, the risk that the puncture needle pierces a plastic film on the back face of the blood bag is fundamentally avoided, and then blood bag damage and blood resource waste are prevented.

The invention belongs to the technical field of stainless steel part polishing devices, and particularly relates to a stainless steel part inner cavity polishing device with an automatic attaching function. In the high-end manufacturing fields of medical treatment, electronics, precision machinery and the like, a stainless steel pipe serves as a core part, and the surface quality of an inner cavity of the stainless steel pipe directly affects the sealing performance, the service life and the operation safety of a product. For example, if micro defects exist in an inner cavity of an infusion catheter in a medical instrument, abnormal fluid resistance or the risk of bacterium breeding is likely to be caused; if the surface roughness of a precise pipeline in semiconductor equipment does not reach the standard, process pollution or function failure may be caused. A current mainstream stainless steel pipe inner cavity polishing technology still seriously depends on traditional equipment and manual cooperative operation, a core polishing grinding head generally adopts a rigid fixed structure, and the geometrical shape and angle of the core polishing grinding head cannot be dynamically adjusted along with the actual contour, small fluctuation of the inner diameter and transition change of a curved surface of a stainless steel pipe inner cavity. By means of the device, full-process automation, high precision and intelligentization of polishing of the inner cavity of the stainless steel pipe fitting are achieved. From automatic feeding, accurate conveying and double-station cooperative machining to multi-dimensional online detection and then to closed-loop regulation and control of a central control system, all the modules are in close fit, and an efficient and stable overall solution is formed.

The invention relates to infusion catheters and methods of use. The infusion catheter has an elongate flexible shaft including a wall and a lumen extending between a proximal end and a distal end. The catheter also has a sealing member within the shaft lumen, the sealing member including a wall and a lumen. The catheter also has a slidable retractable elongate central shaft member extending through the shaft lumen and the sealing member lumen, the central shaft member being connected to a distal cap. The catheter also has a plurality of elution arms extending radially about the central shaft member, the plurality of elution arms including a lumen fluidly connected to the shaft lumen and the distal cap. A method of treating thrombus is also disclosed.

The intestinal tract preparation device comprises a cleaning fluid barrel, a balloon and a hose, the lower surface of the cleaning fluid barrel is movably connected with an infusion catheter, an inflow port is formed in the right side of the balloon, an outflow port is formed in the left end of the balloon, and the hose is connected with the infusion catheter. The end, away from the cleaning liquid barrel, of the liquid conveying guide pipe is movably connected to the inflow opening. One end of the hose is movably connected to the outflow opening, the other end of the hose is spherical, a plurality of liquid holes are formed in the periphery of the end, away from the balloon, of the hose, and scale marks are arranged on the surface of the hose in the length direction of the hose. According to the utility model, along with the continuous pressing of the balloon, the cleaning liquid can flow out from the plurality of liquid holes at the front end of the hose, so that the effect of cleaning the anus and the rectum is achieved, excrement and florae in the anus and the intestinal tract can be cleaned up, a more accurate and comfortable intestinal tract preparation process can be realized, and the success rate of coprophilous fungus transplantation is improved; the discomfort of a patient is reduced, and the possible complication risk is reduced.

Embodiments herein relate to systems for generating suspensions / mixtures of therapeutic radioactive microspheres and carrier fluid. In an embodiment, a cancer therapy suspension generating system is included having a fluid container defining an interior volume, a fluid outlet out of the interior volume, an output line, and a coiled, looped, and / or folded fluid line. A first valve can be positioned between the fluid outlet and the fluid line while a second valve can be positioned between the fluid line and a distal portion of the output line. A pump can be included that pulls fluid out of the interior volume of the fluid container through the fluid outlet and first portion of the outlet line into the fluid line. Further, the pump pushes fluid out of the fluid line and into the second portion of the output line and onto a fluid delivery catheter. Other embodiments are also included herein.

[Problem] To provide an anti-obstruction agent for enteral administration catheters that prevents contamination and blockage caused by oxidation of residual administered substances. [Solution] The anti-obstruction agent for enteral administration catheters is a gel-like substance characterized by being a hydrogel using water-soluble polysaccharides and / or water-soluble proteins. To prevent blockage due to oxidative contamination in the enteral administration catheter, the anti-obstruction agent for enteral administration catheters is filled into and retained in the enteral administration catheter to prevent blockage. [Selected Figure] None

Embodiments herein relate to systems for generating suspensions / mixtures of therapeutic radioactive microspheres and carrier fluid. In an embodiment, a cancer therapy suspension generating system is included having a fluid container defining an interior volume, a fluid outlet out of the interior volume, an output line, and a coiled, looped, and / or folded fluid line. A first valve can be positioned between the fluid outlet and the fluid line while a second valve can be positioned between the fluid line and a distal portion of the output line. A pump can be included that pulls fluid out of the interior volume of the fluid container through the fluid outlet and first portion of the outlet line into the fluid line. Further, the pump pushes fluid out of the fluid line and into the second portion of the output line and onto a fluid delivery catheter. Other embodiments are also included herein.

The utility model discloses a needle head for injection under a hysteroscope and a needle head array for injection under the hysteroscope, and relates to the technical field of medical equipment.The needle head for injection under the hysteroscope comprises a long-strip-shaped base, and a plurality of needle tubes are arranged on one side of the long-strip-shaped base at intervals in the axis direction of the long-strip-shaped base; liquid passing channels communicated with the needle tubes are arranged in the long-strip-shaped base, the liquid passing channels are connected with an injector through infusion catheters, grooves facilitating grabbing of grabbing forceps are formed in the two symmetrical side edges of the long-strip-shaped base respectively, and magnet pieces are symmetrically arranged on the two symmetrical side edges of the long-strip-shaped base. More than two groups of injection needle heads under the hysteroscope are magnetically attracted and fixed through the corresponding magnet sheets to form an injection needle head array under the hysteroscope. According to the utility model, through the design of the miniaturized needle head array, on the premise that the risk of cervical injury is not increased, the problems of non-uniform administration, long treatment time and the like in the treatment of wide pathological changes in the uterine cavity are effectively solved.

The invention relates to an anti-bubble flow control device for infusion, belongs to the technical field of medical instruments, and provides an anti-bubble flow control device for infusion in order to solve the problem that an existing flow measurement device is not applicable to some hospitals, wards or special scenes with limited conditions due to the fact that the existing flow measurement device is complex in structure and high in cost. The bubble eliminating device is arranged between the infusion catheter and the connecting catheter, enables the infusion catheter and the connecting catheter to be communicated, and is used for controlling and counting the flow speed and the dripping amount of the vasodilator and eliminating bubbles generated in the flowing-in process of the vasodilator twice, so that the bubbles of liquid medicine entering the kettle are eliminated, and the bubble eliminating effect is improved. And secondary bubble elimination is carried out on the liquid medicine which is placed in the kettle and does not flow out, so that the situation that the dropping amount of a patient is deviated and the treatment effect is affected due to the fact that the vascular dilator containing bubbles or the bubbles are mistakenly counted as the dropping amount is avoided to the maximum extent.

To provide an improved ophthalmic system that reduces post-occlusion surges and maintains stable IOP (Intraocular Pressure) under various flow conditions. [Solution] The surgical cassette for the ophthalmic surgery system includes an infusion conduit that is in fluid communication with the handpiece and delivers fluid toward the surgical site. A suction conduit is in fluid communication with the handpiece and delivers fluid away from the surgical site. A suction pump generates vacuum pressure in the suction conduit, drawing fluid through the suction conduit toward the discharge reservoir. The reservoir is coupled with a pressure-vacuum source to manage the reservoir pressure. A valve is in fluid communication with the suction conduit and the reservoir, providing one or more channels between the suction conduit and the reservoir. Each sensor detects pressure associated with the surgical site. A computer controls the valve according to the pressure detected by one or more pressure sensors to mitigate pressure or volume changes.