52 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.

The present disclosure relates to a self-lubricating cannula for use in delivering a fluid medication to a subcutaneous site. The self-lubricating cannula comprises polyether block polyamide and an additive configured to facilitate the manufacture of a tipped self-lubricating cannula. The present disclosure also provides a method of making a self-lubricating cannula and a method of administering insulin using a self-lubricating cannula.

The present disclosure relates to a self-lubricating cannula for delivering a fluid drug to a subcutaneous site. The self-lubricating cannulas include a polyether block polyamide and an additive that are configured to facilitate the manufacture of tip self-lubricating cannulas. The present disclosure also provides a method of making the self-lubricating cannula and a method of administering insulin using the self-lubricating cannula.

The present application relates to the field of medical device technology, and more particularly to a stent system capable of sustained drug delivery. The stent system comprises a coated stent and an infusion catheter. The coated stent is coated with an inner membrane and an outer membrane, forming a liquid reservoir between the inner and outer membranes for storing drugs. The outer membrane is provided with a liquid outlet, through which the drug can seep out, achieving sustained drug release. The liquid outlet of the infusion catheter is inserted into the liquid reservoir to infuse the liquid reservoir. This stent system can achieve sustained drug release, effectively resolving the problem of drug retention during digestive tract drug delivery.

The disposable blood transfusion apparatus comprises a bottle penetrating needle, a liquid stopping clamp, a drip chamber, a flow regulator, a needle head and a plurality of transfusion catheters, the flow regulator comprises a shell, a rotating shaft, a rolling wheel and a locking device, a channel allowing the transfusion catheters to penetrate through is formed in the shell, and movable through grooves are formed in the side walls of the two sides of the shell respectively; the locking device comprises two moving blocks and a locking piece, sliding grooves are formed in the outer walls of the two sides of the shell respectively, the two moving blocks are detachably connected to the two ends of the rotating shaft respectively, the two moving blocks slide in the two sliding grooves respectively, and the two moving blocks are detachably connected to the two ends of the rotating shaft respectively. The locking piece is used for locking the position of the moving block in the sliding groove. The purpose of adjusting the infusion speed is achieved by rolling the infusion catheter through the rolling wheel and changing the sectional area of the infusion catheter, after the infusion speed is adjusted, the locking piece locks the positions of the rotating shaft and the rolling wheel by locking the position of the moving block, and the situation that the rolling wheel is prone to sliding can be improved.

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.

The invention belongs to the technical field of medical instruments, and particularly relates to a device for feeding medicine into the coronary artery far-end of a catheter through targeted irrigation, which comprises a medicine feeder, a protective cylinder fixedly connected to the side surface of the medicine feeder, a pushing mechanism arranged in the medicine feeder and used for pushing liquid medicine, a medicine feeding mechanism connected to the bottom end of the medicine feeder, an auxiliary cylinder fixedly arranged in the protective cylinder, and a medicine feeding mechanism arranged in the auxiliary cylinder. An electric push rod is fixedly arranged in the protection cylinder, a compression block is arranged in the auxiliary cylinder, and a conveying pipe is arranged on the side face of the auxiliary cylinder. According to the device, the auxiliary cylinder is adopted, so that liquid medicine can be conveniently conveyed and treated, a conveying pipe is not sealed any more, an electric push rod works to drive a compression block to move, the liquid medicine can flow into the medicine feeding mechanism, the liquid medicine is continuously conveyed through the medicine feeding mechanism, and in this way, the working time can be shortened, and the working efficiency can be improved. The working efficiency is improved, the liquid medicine can be conveniently and rapidly replaced for conveying treatment, and the working efficiency of the device for feeding the medicine into the coronary artery far end through the targeted irrigation catheter is 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 utility model relates to an anti-bending device for an infusion catheter, which effectively solves the problem that the infusion catheter is easy to bend when a patient is infused through a central venous catheter. Comprising a sliding rod in the left-right direction, sliding barrels are slidably connected to the left end and the right end of the sliding rod correspondingly, a plurality of limiting grooves which are evenly distributed in the left-right direction and communicate with the inner sides of the sliding barrels are formed in the lower side walls of the sliding barrels, and inverted-L-shaped limiting rods made of elastic materials are fixed to the left end and the right end of the sliding rod correspondingly and can be inserted into the limiting grooves; arc-shaped positioning sleeves with upward openings are fixed to the upper ends of the two sliding barrels respectively, arc-shaped pressing sleeves are hinged to the upper ends of the two positioning sleeves respectively, and the sections of the pressing sleeves and the sections of the positioning sleeves can form a circle. The device is simple in structure, convenient to operate, novel in conception and high in practicability.

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 relates to an infusion apparatus dripping speed adjusting device which comprises a shell, a shaft rod, a pressing wheel, an adjusting mechanism and an operation key, an inner cavity is formed in the shell, a threading hole which penetrates through the two sides and allows an infusion catheter to penetrate through is formed in the shell, guide grooves are symmetrically formed in the inner walls of the two sides of the inner cavity, and the guide grooves extend in an inclined mode. The two ends of the shaft rod are inserted into the guide grooves in the two sides respectively, the shaft rod is fixedly sleeved with the pressing wheel, the pressing wheel abuts against the outer wall of the infusion catheter, and an adjusting mechanism is arranged on one side of the shell. Only if a medical worker holds the operation key to operate the adjusting mechanism, the pressing wheel can be adjusted in a rolling mode along the guide groove so that the dripping speed in the infusion catheter can be adjusted, after the medical worker adjusts the dripping speed to be proper, the operation key is taken away, and therefore a patient can be prevented from falling off under the condition that the patient lacks the operation key. The dripping speed cannot be adjusted, the locking effect is achieved, the situation that a patient adjusts the dripping speed of liquid medicine at will can be avoided, and then adverse effects on the patient due to the abnormal dripping speed of the liquid medicine are avoided.

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.

Described herein are devices and systems and methods for treating a patient for use with or including at least one infusion catheter having a proximal end with a seat, 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 removably connecting to a seat of at least one infusion catheter, a second connector for fluidly coupling and removably connecting to at least one manual injector pump, and a passive pressure controlled mechanical flow regulator, the passive pressure controlled mechanical flow regulator regulates the flow of fluid supplied to and delivered by the infusion catheter into the vascular system of the patient by the manual pumping action of the at least one manual syringe pump. The mechanical flow regulator may be configured to deliver a therapeutic agent or auxiliary fluid supplied under pressure by a pumping action of the at least one manual injector pump into and through a lumen of the infusion catheter at a desired infusion rate.

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.

The utility model provides a fixed application for an insulin pump, which relates to the technical field of medical instruments, and comprises an application, the application is used for fixing an infusion needle of the insulin pump, the infusion needle penetrates through the middle position in the application, one side of the infusion needle is connected with an infusion catheter, and the other side of the infusion needle is connected with an infusion tube. A fastening adhesive tape is arranged on the outer surface of the infusion catheter, and the fastening adhesive tape is used for fixing the infusion catheter; through the arrangement of the application and the fastening adhesive tape, the infusion needle head can be firmly fixed in the insulin pump, the fixing effect and the wearing comfort of the insulin pump are effectively improved, adverse effects of skin are reduced, and a better guarantee is provided for a patient to use the insulin pump.

The embodiment of the invention provides a flow regulator, an alcohol instillation device and slitting equipment, the flow regulator comprises a shell, a sealing part, a regulating part and two infusion catheters, the sealing part is provided with a sealing cavity, the sealing cavity comprises a first end part and a second end part, and the regulating part comprises a magnetic rolling piece and a magnetic attraction pusher which are magnetically attracted. The sealing part is installed in the shell, the magnetic rolling piece is installed in the sealing cavity and tightly connected with the cavity wall of the sealing cavity, and the magnetic rolling piece can roll in the sealing cavity; the magnetic pusher is arranged on one side of the shell and can slide relative to the shell; under the action of magnetic force, the magnetic attraction pusher can drive the magnetic rolling piece to roll in the sealing cavity; the two infusion catheters are respectively communicated with the first end part and the second end part of the sealing cavity; when the magnetic attraction rolling piece is located at the first end, the opening degree of the flow regulator is maximum, and when the magnetic attraction rolling piece is located at the second end, the opening degree of the flow regulator is minimum.

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.