56 results about "Irrigation catheters" patented technology

Systems and methods for performing aspiration thrombectomy. The aspiration catheter assembly can include a support catheter and an aspiration catheter extending through the support catheter. The catheter assembly can include a distal valve apparatus that can control a level of vacuum at a distal end of the catheter system. Irrigation can flow between the support catheter and the aspiration catheter to flush the catheter assembly.

The application provides a lavage catheter, which comprises a handle assembly and a catheter assembly. The handle assembly comprises a shell and a movable assembly. The movable assembly is movably arranged in the shell, so that the movable assembly comprises a first state and a second state relative to the shell. The catheter assembly comprises a catheter tube and a pop-up unit. The catheter tube is provided with an opening at a distal end for communication with the outside. The pop-up unit comprises a connecting wire and a pop-up part. The proximal end of the connecting wire is connected to the movable assembly, and the distal end of the connecting wire is connected to the pop-up part. When the movable assembly is in the first state, the connecting wire is in tension, and the pop-up part is received in the catheter tube. When the movable assembly is in the second state, the connecting wire is relaxed, and the pop-up part is popped out of the opening. The lavage catheter provided by the application can make the pop-up part pop out of the opening, so as to keep a certain space gap between the sub-segment bronchial wall and the opening, and prevent the sub-segment bronchial wall from closely adhering to the catheter tube under negative pressure to block the opening and cause difficulty in pumping the lavage liquid.

The utility model discloses a flushing and sucking type low-temperature non-stick plasma operation electrode which comprises a plastic handle portion, a handle control switch is installed on the side face of the plastic handle portion, a tool bit seat is installed at the front end of the plastic handle portion, an electrode tool bit is installed at the front end of the tool bit seat, the front end of the electrode tool bit is a cutting edge tip, and the cutting edge tip is provided with a cutting edge. Insulating coatings are arranged on the upper surface and the lower surface of the electrode tool bit, a discharge hole is formed in the upper portion of the front end of the tool bit seat, and a flushing hole is formed in the lower portion of the front end of the tool bit seat. According to the flushing and sucking type low-temperature non-stick plasma operation electrode, the flushing catheter, the valve switch device A, the normal saline supply device, the flushing hole and the vacuum pressure source C are arranged, so that denatured tissues adhered to the surface of the electrode and the tip of a blade can be conveniently flushed; denatured tissues adhered to the surface of the electrode are prevented from hindering the visual field of doctors in the operation process, the subjective judgment consciousness of the doctors in the operation process is prevented from being influenced, and the medical risk of operation misoperation of the doctors is reduced.

The present invention is a self-cleaning catheter designed to impede the development of biofilm within the catheter and provide a mechanism for removing biofilm within the catheter during use by a patient. The self-cleaning catheter includes an outer shell enclosing a urine lumen. The urine lumen has the ability to be opened and closed with a urine lumen closure device and is formed with a plurality of micro ports and a plurality of macro wash ports. At least one antimicrobial lumen is affixed to the exterior of and in fluid communication with the urine lumen at the plurality of micro ports. Similarly, at least one wash lumen is affixed to the exterior of and in fluid communication with the urine lumen at the plurality of macro wash ports. Antimicrobial solutions and wash solutions are introduced into the urine lumen by the antimicrobial lumen and wash lumen respectively, even during use.

The invention discloses a disposable anti-blocking drainage flushing catheter, which relates to the technical field of medical instruments and comprises a supporting shell, a suction tube, a flushing tube and a transparent filtering part, the supporting shell is provided with a handle and a detachable gun head, a liquid outlet pipe and a liquid inlet pipe which are coaxial are arranged in the gun head, an annular drainage cavity is formed between the liquid outlet pipe and the liquid inlet pipe, the liquid outlet pipe is communicated with the flushing pipe, and the liquid inlet pipe is communicated with the suction pipe through the annular drainage cavity; the suction tubes are designed in a segmented manner, the filtering part is detachably arranged between the two sections of the suction tubes, and filtering holes are formed in the circumferential direction of the filtering part, so that liquid is filtered by the filtering part and then discharged; the filtering part is arranged in the handle, the handle is provided with the observation window so that the blockage condition can be monitored conveniently, flushing and drainage can be synchronized, the transparent detachable structure facilitates real-time blockage observation and treatment, the overall structure is simple, and use, production and popularization are convenient.

The utility model belongs to the field of medical apparatus and provides a bladder irrigation pipe set, the bladder irrigation pipe set includes irrigation catheter and conversion subassembly, the conversion subassembly includes fixed cover, the fixed cover front side intercommunication has the liquid outlet joint, rear side and irrigation catheter intercommunication, upper end has the top mouth, lower end has the bottom mouth, the top mouth can insert the medicine injection joint in, be equipped with the conversion head in the fixed cover, the front side of conversion head has the round hole, rear side has the flow guide groove, and the flow guide groove is linked with the round hole, the upper of conversion head has a circle of shunt groove, the flow guide channel is connected with the flow guide groove below shunt groove on the conversion head. The bladder irrigation pipe set can realize the quick switching of the irrigation and the liquid outlet function through the simple plug -in medicine injection joint, and the design not only simplifies the operation step, but also improves the treatment efficiency.

According to certain embodiments, a surgical cassette for an ophthalmic surgical system comprises an irrigation conduit that is in fluid communication with a handpiece and carries fluid toward a surgical site. An aspiration conduit is in fluid communication with the handpiece and carries fluid away from the surgical site. An aspiration pump creates a vacuum pressure in the aspiration conduit to draw fluid through the aspiration conduit towards a drain reservoir. A reservoir couples with a pressure-vacuum source to manage the reservoir pressure. A valve is in fluid communication with the aspiration conduit and the reservoir, and provides one or more channels between the aspiration conduit and the reservoir. Each sensor detects a pressure associated with the surgical site. A computer controls the valve in response to the pressure detected by the one or more pressure sensors to mitigate a pressure or volume change.

The utility model discloses a bladder irrigator structure for blocking a urinary catheter by blood clots in blood, which belongs to the technical field of bladder irrigation and comprises auxiliary irrigation equipment, and the auxiliary irrigation equipment comprises a liquid storage tank and a storage tank; the flushing catheter comprises a catheter assembly, a non-return assembly is arranged in the catheter assembly, the catheter assembly comprises an input pipe, one end of the input pipe is communicated with the liquid storage tank, the other end of the input pipe is connected with an output pipe, the end of the output pipe is communicated with a connector, and the connector is connected with a catheter in the bladder of a patient. The outer side of the output pipe is communicated with the waste liquid pipe, and the end of the waste liquid pipe is communicated with the storage box, so that the waste liquid is effectively prevented from flowing back, the waste liquid is prevented from remaining and breeding bacteria at a gap between the side wall of the infusion pipe and the valve, and the risk of urinary system infection of a patient is greatly reduced.

The disclosed techniques include directing irrigation fluid to an irrigation manifold for an end effector of a medical device. The irrigation manifold includes a housing and a diverter extending along a longitudinal axis and connected to irrigation tubes, respectively. The end effector includes sheaths each defining an irrigation conduit connected to the irrigation manifold to allow an irrigation fluid flow to be uniformly distributed through the sheath.

Anal irrigation catheter adapted for use in an anal irrigation system.

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.

The present invention belongs to the technical field of urology, and in particular to a urinary catheter flushing device for urology. The following scheme is proposed, which specifically includes a support seat, a support rod fixedly installed on the top of the support seat, and a hanger fixedly installed on the side of the support rod, a movable seat fixedly installed in the middle of the support rod, and two torsion spring shafts fixedly installed on the side of the movable seat, the bottom ends of the two torsion spring shafts are both installed with heating mechanisms, and an infusion tube is clamped between the two heating mechanisms. In the present invention, the flushing catheter is inserted into the drainage tube to realize the diversion of the flushing liquid and urine, avoiding the backflushing of urine into the bladder to cause infection, and the flushing catheter is movable inside the drainage tube to avoid irritation to the patient's urethra during the insertion and removal of the flushing catheter. The diversion of the flushing liquid and urine can realize the flushing and replacement of the patient's bladder, which is more conducive to the flushing operation of the patient's bladder and improves the discharge effect of secretions in the bladder or postoperative thrombus.

A flush device may be used to flush a catheter system. The flush device may include a housing, a proximal connector coupled to the housing, and a distal connector coupled to the housing. The flush device may include a first conduit disposed within the housing and extending between the proximal connector and the distal connector. The flush device may include a second conduit disposed within the housing and in fluid communication with the first conduit. The flush device may include a fluid reservoir, which may be disposed within the housing of the flush device. The flush device may include a pump that pumps fluid from the fluid reservoir, through the second conduit, and into the first conduit. The device may include a one-way valve, which may prevent fluid from flowing beyond the one-way valve toward the fluid reservoir.

The utility model relates to the technical field of ovum retrieval needles, and particularly discloses a double-cavity ovum retrieval needle which comprises a puncture needle and a large handle, a flushing cavity channel and a negative pressure cavity channel are arranged in an inner cavity of the puncture needle, and the large handle is provided with the puncture needle. The large handle is further connected with a flushing catheter and a first negative pressure pipe, the end, close to the large handle, of the flushing catheter is communicated with the flushing cavity, and the end, close to the large handle, of the first negative pressure pipe is communicated with the negative pressure cavity. A test tube plug is arranged at one end, far away from the large handle, of the first negative-pressure tube and is connected with a second negative-pressure tube; a protruding arc part is arranged on one side of the large handle, and a plurality of grooves are formed in the other side of the large handle at intervals. The puncture needle is a blunt needle; the puncture needle is vertically arranged on the side, close to the groove, of the large handle. The problems that in the puncture process of a double-cavity ovum extraction needle, a handle is not easy to hold or the handle slips off from the hand, and then the risk of operation failure is caused are solved. The wound surface of the needle point of the puncture needle is too large, and pain of a patient is caused in the operation process.

The utility model discloses a biliary tract flushing catheter which comprises a plastic sheath tube, one side of the tail end of the plastic sheath tube is communicated with an injection manifold, the injection manifold is communicated with an injector, a guide steel wire is arranged in an inner tube of the plastic sheath tube in a penetrating mode, and the tail end of the guide steel wire is fixedly connected with a soft plug. The head end of the guide steel wire is fixedly connected with a soft non-transmission wire end, the soft non-transmission wire end comprises a spherical top, the edge of the bottom side of the spherical top is fixedly connected with a water flow reflection skirt edge, the middle of the bottom of the spherical top is fixedly connected with a connecting column, and the guide steel wire is fixedly connected with the bottom end of the connecting column. Through the design of the soft non-transmission wire end, the direction of flushing water flow is changed, the position where the head end of the catheter reaches can be clearly displayed under rays, operability is improved, meanwhile, due to the design of the pipe diameter, it is guaranteed that the catheter smoothly passes through a duodenoscope forceps channel, the flow and the flow direction of the flushing water flow are guaranteed, and flushing is more effective.

The invention relates generally to methods and systems for irrigating particulates during heart pump implantation, and more specifically relates to irrigating and removing particulates that may be released when coring a patient's heart tissue. A method of irrigating particulates during blood pump implantation includes inserting a removable tissue irrigating device into a patient's heart. The removable tissue irrigating device includes a delivery tube and an irrigation conduit extending through the delivery tube. The irrigation conduit is extended out of an opening in the delivery tube to a deployed position from a stored position. The irrigation conduit is substantially disposed within the delivery tube when in the stored position and has a distal portion protruding out of the delivery tube when in the deployed position. Fluid is dispersed from the irrigation conduit into the patient's heart to remove particulates released during and / or after a coring procedure.

The application discloses a kind of monitoring body cavity pressure irrigation aspirator system, control method and medium, system includes body cavity pressure measurement module, for obtaining body cavity pressure and sending to control module;Control module is used to compare the received body cavity pressure with preset body cavity pressure threshold value, according to the difference proportion of body cavity pressure and body cavity pressure, generate control signal including peristaltic pump motor speed, and control signal is sent to peristaltic irrigation module;Wherein, difference proportion and the mapping relationship between motor speed increase proportion or decrease proportion are pre-configured in control module;Peristaltic irrigation module is used to receive control signal and carry out peristaltic irrigation according to control signal;Wherein, peristaltic irrigation module includes peristaltic pump and the irrigation catheter connected with peristaltic pump.The application realizes whole process system monitoring to operating state, guarantees intraoperative irrigation persistence, improves the safety of surgical process.

The present invention discloses a flushing and suction device for medical equipment, which is composed of a flushing device, a suction device, and a device shell. The flushing device and the suction device are both installed inside the device shell. The flushing device includes a flushing catheter, a flushing battery, a flushing control switch and a flushing cavity. The suction device includes a suction catheter, a lithium battery, a suction control handle and a suction cavity. The head ends of the flushing device and the suction device are both installed in a double-cavity flushing suction tube through the head end cap, and the tail ends of the flushing device and the suction device pass through the inner cavity to reach the shell tail of the device shell. The device shell is one on each side, and the two halves of the device shell are fixed into a whole by pins, and an inner cavity is formed inside the shell. When working, the present invention uses a redundant configuration of two fire alarm controllers, one is a main fire alarm controller, and the other is an auxiliary fire alarm controller. The two work together to avoid the fire alarm controller from stopping working due to failure, thereby improving the reliability of the system.

A catheter (100, 200, 600, 700) insertable into a urethra for installation in a user's bladder and urethra, the catheter comprising: a urine conduit (102, 202, 602, 702, 802) comprising a first urine inlet (104, 214, 614, 714, 814) and a urine outlet (106, 206); and an inlet protector (216, 316, 616, 716, 816) extending outwardly from the urine conduit from a position between the first urine inlet and the urine outlet. The inlet protector functions to protect the urine inlet by separating it from contact with the bladder wall and thus keeping it out of contact with tissue. In existing catheters, the process of evacuating the bladder can cause tissue from the bladder wall to be sucked into the urine inlet. Tissue can get stuck to the catheter which blocks the inlet and tissue can also be damaged by this process. Also, small pieces of tissue can lodge within the catheter causing blockage and biofouling, reducing flow rate. A high flow rate is better as it flushes any fouling or urine deposits out of the catheter. A lower flow rate is less effective so that deposits build up quicker and present a greater infection risk, thus reducing the time that the catheter can remain in place. The inlet protector which extends outwardly from the urine conduit from a position between the urine inlet and the urine outlet (i.e. so that the urine inlet is held away from the urethra and the urethral opening of the bladder) keeps the urine inlet slightly separated from the bladder wall tissue and thus ensures a good flushing flow rate with reduced risk of fouling.

The disclosure relates to devices and methods for the treatment of edema using a purge-free system. The invention provides devices and methods useful for treating edema by means of an indwelling catheter that is placed in a blood vessel of a patient and used to pump blood to cause a decrease in pressure at an outlet of a lymphatic duct. The catheter pumps blood by means of an impeller but is purge-free in that the catheter does not include a system for purging or flushing catheter components with a purge fluid. The purge-free catheter avoids blood-related mechanical complications such as clotting or thrombosis by means of an impermeable sleeve or shroud that protects moving parts of the impeller drive system.

A flush syringe for use in maintaining intravenous catheters, wherein the flush syringe can more efficiently and effectively flush the catheters by providing a pulsating, pulsatile, and / or pulsative flow of fluid that can be produced using momentum of the fluid moving. A steady force applied to a plunger while flushing can provide the pulsating, pulsatile, and / or pulsative flow of the fluid to the catheters.

The multifunctional ostomy bag comprises a bag body, a flushing catheter arranged on the inner periphery of the bag body, a connecting valve arranged at the inlet end of the flushing catheter and a flushing head used for being inserted into the connecting valve, the connecting valve is arranged on the bag body in a heat sealing mode, and a hole communicated with the flushing catheter in a matched mode is formed in the connecting valve and used for being communicated with the flushing head in a butt joint mode. The flushing head is provided with a flushing channel, an outlet of the flushing channel is communicated with the hole in the connecting valve in a butt joint mode, and an inlet of the flushing channel is provided with a connector capable of being screwed with a bottle opening of a matched plastic water bottle. According to the technical scheme, when the bag body needs to be flushed, the plug cover is opened, the flushing head is connected with a bottle opening of the plastic water bottle in a screwed mode, then the flushing head is plugged into the connecting valve to be matched with a guide pipe opening, and water is injected into the bag body by squeezing the plastic mineral water bottle containing water. When water flow enters the guide pipe with the holes, the water outlet holes form a multi-direction spraying shape, and therefore the all-dimensional good washing effect on the interior of the bag body can be achieved. The ostomy bag can be washed, discharged and filtered easily and conveniently, and the ostomy bag is complete in function and convenient to use.

An embryo collection device for collecting embryos in the uterine horn of a pig, in particular a sow or a gilt, includes an introduction probe to be partially introduced into the cervix of the pig, provided with a guide lumen; and a flushing catheter, slidably arranged in the guide lumen, including: a proximal and a distal end, an inflation lumen and a flushing lumen, an inflatable cuff fluidly connected to the inflation lumen to be inflated for at least partially closing the uterine horn towards a proximal end thereof; and a flushing section between the inflatable cuff and the distal end to be introduced inside the uterine horn, including a flushing opening fluidly connected to the flushing lumen; and a tip element arranged at the distal end, shaped to steer the flushing catheter, for example such that upon insertion of the introduction probe in the cervix, the flushing catheter may be advanced further into the reproductive tract passing the cervix and uterine body and entering the uterine horn for flushing the uterine horn through the flushing opening.

The invention belongs to the technical field of urinary surgery, in particular to a urinary catheter flushing device for urinary surgery, and provides the following scheme that the urinary catheter flushing device specifically comprises a supporting seat, a supporting rod is fixedly mounted at the top of the supporting seat, a hanging frame is fixedly mounted on the side face of the supporting rod, and a movable seat is fixedly mounted in the middle of the supporting rod; and two torsional spring rotating shafts are fixedly installed on the side face of the movable seat, heating mechanisms are installed at the bottom ends of the two torsional spring rotating shafts, and an infusion tube is clamped between the two heating mechanisms. The flushing catheter is inserted into the drainage tube, flushing fluid and urine are shunted, infection caused by back flushing of the urine into the bladder is avoided, the flushing catheter moves in the drainage tube, the urethra of a patient is prevented from being stimulated in the inserting and pulling process of the flushing catheter, the flushing fluid and the urine are shunted, and the drainage tube is convenient to use. The bladder of a patient can be flushed and replaced, flushing operation of the bladder of the patient is better facilitated, and the discharging effect of secretions in the bladder or postoperative thrombus is improved.

The invention discloses a joint lavage device for treating tophus, and relates to the technical field of medical apparatuses and instruments. The invention provides a joint lavage device for tophus treatment, which comprises a mounting rack, transversely symmetrical liquid storage barrels are fixedly connected to the mounting rack, a mounting plate is fixedly connected to the mounting rack, an electric telescopic rod is fixedly connected to the mounting rack, a rotary joint is rotatably connected to the telescopic end of the electric telescopic rod, and a rotary shaft is fixedly connected to the rotary joint. A guide block is rotatably connected to the rotary joint, a sliding frame is slidably connected to the guide block, one end of the sliding frame is connected with a detachable lavage catheter, and the lavage catheter is communicated with a two-way pump. The fixing clamping plates slide oppositely to fix the device on an operating table, the angle of the lavage catheter can be adjusted at will through stretching and retracting of the electric telescopic rod and rotation of the rotary connector and the guide block, when the lavage catheter is forwards inserted into a knee joint cavity of a patient for lavage, a worker can loosen the device without being held all the time, and use is more convenient.

The utility model relates to the technical field of medical instruments, in particular to a flushing device and a cleaning fluid bottle with the flushing device. The flushing device comprises a flushing assembly, a connecting hose and a bottle stopper puncture outfit, the flushing assembly and the bottle stopper puncture outfit are communicated through the connecting hose, the flushing assembly is used for spraying cleaning fluid, and the bottle stopper puncture outfit is used for penetrating through a cleaning fluid bottle to draw the cleaning fluid; the flushing assembly comprises a flushing catheter, a shielding piece, a connector and a butterfly wing handle, one end of the connector is communicated with the flushing catheter, the other end of the connector is communicated with the connecting hose, the shielding piece is arranged at the joint of the connector and the flushing catheter, and the butterfly wing handle is arranged on the connector. Meanwhile, based on the flushing device, the utility model further provides a cleaning liquid bottle with the flushing device, and the cleaning liquid bottle is convenient for medical staff to operate and convenient for flushing treatment.

This utility model discloses a bladder irrigation device, relating to the field of medical device technology. It includes a bladder irrigation catheter, a negative pressure suction catheter, a negative pressure suction mechanism, and an endoscope mechanism. The front end of the bladder irrigation catheter is inserted into the bladder to be treated, and a flushing water inlet is provided on the rear side wall of the bladder irrigation catheter. The negative pressure suction catheter can be inserted into the bladder irrigation catheter, and a flushing water channel can be formed between the outer wall of the negative pressure suction catheter and the inner wall of the bladder irrigation catheter. The front end of the flushing water channel is open to flush the bladder to be treated, and the rear end of the flushing water channel is closed. The inlet of the negative pressure suction mechanism can communicate with the rear end of the negative pressure suction catheter to drain the bladder to be treated. The probe of the endoscope mechanism can be inserted into the bladder irrigation catheter to take images inside the bladder to be treated. This utility model can achieve bedside visual negative pressure bladder irrigation, improving the treatment effect of bladder tamponade.

Systems and methods for performing aspiration thrombectomy. The aspiration catheter assembly can include a support catheter and an aspiration catheter extending through the support catheter. The catheter assembly can include a distal valve apparatus that can control a level of vacuum at a distal end of the catheter system. Irrigation can flow between the support catheter and the aspiration catheter to flush the catheter assembly.

A catheter flush securement device, a kit including the same, and a method of flushing a catheter are disclosed. A catheter flush securement device is disclosed that includes an inlet port shaped to receive a distal end of a catheter, wherein an inner surface of the inlet port is sized to form an interference fit with an outer surface of the catheter when the catheter is inserted into the outlet port, and thereby occlude a fluid outlet on the outer surface of the catheter. A kit including the catheter flush securement device is also disclosed. A method of flushing a catheter is also disclosed. A flush securement device for flushing a lumen of a catheter is also disclosed.