56 results about "Indwelling catheters" patented technology

An introduction arrangement for a fenestrated or branched stent graft (13) intended for deployment into the lumen of a vessel having a blind vessel extending from it. The introducer (1) has a distal end intended to remain outside a patient in use and a proximal end with a nose cone dilator (11) and an arrangement to retain the branched stent graft distally of the nose cone dilator. A sheath (15) on the introducer extends over the branched stent graft to the nose cone dilator. An indwelling catheter (21) extends from the distal end of the introducer and enters the fenestration or side arm and through to the nose cone dilator, the indwelling catheter has a guide wire (29) extending through it. The guide wire can be extended beyond the nose cone dilator in use before the sheath is withdrawn from the branched stent graft so that it can be snared from the contra-lateral artery.

A catheter-flushing extension tube for maintaining the patency and sterility of the lumen of an indwelling catheter. The system is comprised of an extension tube in fluid connection with an indwelling catheter; the extension tube defines an internal volume and at least one sealed proximal terminal for intermittent connection with an external fluid source. The extension tube is configured such that the internal volume of the tube can be progressively reduced at a plurality of different times so that the extension tube itself provides the source of catheter flush solution for intermittently flushing the catheter.

The invention discloses a visualized urethral dilating and urinary catheterization device, which comprises a hollow catheter and a guiding part. The telescopic mechanism fixedly connected with it, the telescopic mechanism is provided with a number of connecting rods, the connecting rods and the outside of the telescopic mechanism are covered with hoses, one end of the flexible pipe is fixedly connected with the guide part, The other end of the hose is fixedly connected to the hollow conduit, and the hollow conduit is used to place an observation mirror, and the observation mirror is embedded in the guide part, and the end of the guide part and the guide part The ends of the urine mechanism are all flush with the ends of the observation mirror, and the device can realize visual operation, safely and reliably perform urethral dilation or indwell a catheter, and reduce the risk of urethral (secondary) injury.

An indwelling catheter and a catheter assembly belong to the field of catheters in clinical urology. The indwelling catheter includes a catheter body, the end of the catheter body is provided with a catheter hole and an indwelling bladder that can expand and contract, the indwelling bladder is provided with a cavity, and the front end of the catheter body is provided with a catheter The catheter interface connected with the hole and the capsule interface connected with the indwelling capsule body, the outer wall of the catheter body is provided with a groove, the catheter body is provided with a cleaning channel connected with the groove, and the catheter body is far away from the catheter hole One end is provided with a cleaning port communicating with the cleaning channel. The indwelling catheter can effectively wash and disinfect the urethra of patients with the indwelling catheter, and can prevent, reduce and treat urinary tract infection. The present invention also provides a urinary catheter assembly with the above-mentioned indwelling catheter.

The invention relates to a hepatic artery medicine box retention catheter system which mainly comprises an in vivo retention catheter, a 2.6 to 3 F coaxial micro catheter and a micro guiding wire. The in vivo retention catheter comprises a far segment 2.6 to 3 F catheter, a near segment 4F catheter and a 2.6 to 3 F catheter and 4 F catheter connection part. An oval side hole is formed in the 4 F catheter and the short diameter of the side hole is slightly longer than the outer diameter of a cavity of the 2.6 to 3 F catheter. The length of the far segment 2.6 to 3 F catheter is 8 to 12 cm. By the adoption of the hepatic artery medicine box retention conduit system, the far segment of the retention catheter can enter the branch stomach omentum right artery of the gastroduodenal artery more easily, the far segment catheter is conveniently fixed, and filled medicine totally flows out of the side hole and an end hole does not need to be sealed. The filled medicine can enter and exit the micro catheter and the outer side of the retention catheter is fixed. The success rate of a hepatic artery medicine box retention catheter can be obviously improved, risks of catheter displacement and hepatic artery blocking are obviously reduced and the hepatic artery medicine box retention conduit system can be clinically and widely popularized and applied.

The invention discloses a bladder pressure and / or urethra pressure measuring tube fixer comprising two bonding rubberized fabrics, wherein the two bonding rubberized fabrics are respectively connected with a clamp body by a rope belt with width of 1-2mm and length of 1-2cm, resistance arms of two articulated arms of the clamp body have corresponding arc-shaped structures, the end part of a power arm of one articulated arm has an arc tooth structure, a power arm of the other articulated arm has a turn arm structure, one surface of the turn arm opposite to the arc toothis provided with an engaging tooth, and the two articulated arms of the fixer are used for fixing a pressure measuring tube and are symmetrically fixed on both sides of the penis of a male patient or two inner thigh sides or both sides of the perineum of a female patient by the two rubberized fabrics. The bladder pressure and / or urethra pressure measuring tube fixer can be used for conveniently and firmly fixing the bladder and the urethra pressure measuring tube in bladder function clinical measurement, thereby ensuring that clinical bladder urethra pressure and / or bladder pressure-a urinary flow rate can be normallymeasured in clinic. The fixer also can be used for fixing a per urethra indwelling catheter and is especially suitable for fixing a catheter without an air bag.