13 results about "Flow diverter" patented technology

The present technology relates to adjustable shunting systems and methods. In some embodiments, the present technology includes an adjustable shunting system that includes a drainage element having an inflow portion configured for placement within a patient. The system can also include a flow control assembly having a gating element operably coupled to the outflow portion of the drainage element. The flow control assembly can further include a first actuation element and a second actuation element coupled to the gating element. The first and second actuation elements can be configured to selectively move the gating element relative to the outflow portion to control an amount of fluid flow therethrough. The first and second actuation elements can each extend less than entirely around a perimeter of the drainage element.

Neurovascular flow diverter and delivery systems, and methods of using the same are described herein. The systems can include a customizing member including an introducer sheath, a catheter, a deployable flow diverter that can be contained in the introducer sheath or in the catheter, a core wire, and one or several deployment features coupled to the core wire and engaging the flow diverter. The customizing member includes a tubing extending along and around a distal portion of the introducer sheath. This tubing is cuttable and contains a distal end of the flow diverter. The length of the flow diverter can be customized by cutting through the tubing and the therein contained flow diverter.

The utility model discloses a rubber sealing assembly for multilayer shunt, including sealing rubber, the inside position department of sealing rubber is provided with the support ring, the upper end position department of sealing rubber is provided with the compression ring, the inside position department of compression ring is provided with the sliding slot, the inside position department of sliding slot is provided with the inner groove, movable mounting block is installed to the compression ring through the sliding slot at the position department of outside, the inside position department of movable mounting block is fixed with T type pole, the inside position department of T type pole is sleeved with the ball, and the movable mounting block of the present device moves through T type pole, and T type pole moves at the inside position department of sliding slot, so that movable mounting block moves at the outer wall position department of compression ring, and at the same time, T type pole makes movement more flexible through the ball, when movable mounting block moves, the hole diameter of mounting hole is aligned with the hole diameter of external installation position, so that sealing assembly can adapt to different installation environment.

The utility model relates to medical instrument technical field, specifically disclose a skull repair device of integrated cerebrospinal fluid shunt, including artificial bone plate, be used for repairing skull defect, the outer surface of artificial bone plate is equipped with positioning recess, the positioning recess is used for accommodating cerebrospinal fluid shunt, and the positioning recess is equipped with the fixing assembly for fixing shunt. The utility model embeds the main part of cerebrospinal fluid shunt into artificial bone plate, makes shunt main part can accommodate in the thickness range of repair device itself, thereby significantly reduced the overall profile height of implant, effectively reduced the pressure and tension generated to scalp, can prevent the scalp erosion, breakage, necrosis and other serious complications caused by implant profile too high, simultaneously, through the fixing assembly to the shunt fixation, can effectively prevent the shunt from turning over or displacement after operation, guarantee the long-term stability and safety of drainage system, and simplify the operation.

Neurovascular shunts and delivery systems and methods of using the same are described herein. The system can include a custom assembly including an introducer sheath, a catheter, an expandable shunt that can be contained in the introducer sheath or catheter, a core wire, and one or more deployment features coupled to the core wire and engaging the shunt. The custom assembly includes a tube extending along and around a distal portion of the introducer sheath. The tube is cuttable and contains a distal end of the shunt. The length of the shunt can be customized by cutting through the tube and the shunt contained therein.

This utility model relates to the field of abdominal drainage tube technology, specifically to an anti-clogging abdominal drainage tube. It includes an anti-clogging diverter, with a diverting device fixedly connected to its inner cavity. A first diverting hole and a second diverting hole are respectively opened on both sides of the diverting device. A diverting limiting plate is movably connected to the surface of the diverting device, and a rotating valve is fixedly connected to the side of the diverting limiting plate. A first connecting pipe and a second connecting pipe are respectively arranged on the side of the anti-clogging diverter near the rotating valve. Both the first and second connecting pipes have filter screens installed in their inner cavities. The first connecting pipe is located near the first diverting hole, and the second connecting pipe is located near the second diverting hole. This utility model, by setting up a diverting device and two output pipes, allows the other output pipe to be opened to continue operation when one output pipe is blocked, thereby solving the problem of device blockage during drainage.

A device that can be placed within or near the cranial vault that fluctuates in size in response to changes in CSF pressure is disclosed. The device diminishes in size when CSF pressures rise and increases in size as CSF pressures diminish. The device has the effect of reducing the flow of CSF occurring in the foramen magnum and provides an alternative to craniovertebral decompression in Chiari I patients. The device may have applications in other neurologic illnesses associated with abnormal CSF flow, such as Idiopathic Syringomyelia, Normal Pressure Hydrocephalus, and CSF dural leaks.

The utility model relates to medical instrument technical field discloses a kind of clamping position shunt and interventional medical instrument.The utility model includes a kind of clamping position shunt, is conveyed and is disposed in the ventricular system and venous system of patient by conveying system and exports cerebrospinal fluid in the ventricular system of patient to venous system, the dura mater between ventricular system and venous system is equipped with puncture hole, the puncture catheter with puncture needle head is included in conveying process, clamping position shunt is arranged in puncture catheter, the proximal end side wall of puncture needle head is equipped with at least one shunt tube installation slot, clamping position shunt includes the shunt tube body for being disposed in venous system and the distal end part for being disposed in ventricular system.The utility model is improved by clamping position shunt and its conveying system, not only simplifies conveying system structure, so that the operation of conveying system is more convenient, operation risk is lower, and shunt tube can also be provided with protection to puncture catheter.

The utility model discloses a dialysis catheter pipe changing joint, including flow divider, first catheter, second catheter and third catheter, and one end of first catheter and second catheter is communicated with one end of third catheter through flow divider, and the other end of first catheter is provided with the one-way valve for inserting the guide wire, and the other end of second catheter is provided with the second catheter joint for connecting the contrast injector, and third catheter is provided with the third catheter joint for connecting the cut -off mouth of built -in catheter. The dialysis catheter pipe changing joint of the utility model can carry out the contrast and the guide wire implantation in patient's body simultaneously, is convenient for the operation of physician, reduces the operation risk, improves medical safety, can further reduce the catheter infection probability in the pipe changing process, can reduce the blood loss of patient, improves the tolerance of patient operation and postoperative recovery time, also can improve the medical experience of patient, improves the satisfaction of patient.

The application relates to the field of interventional medical technology, in particular to a percutaneous interventional venous sinus puncture access device. The access device is formed by the mutual cooperation of a balloon catheter, a deflecting catheter and a puncture guide wire, can puncture into the subarachnoid cavity in the cranial cavity on the venous sinus without damaging the brain, break the dura mater and arachnoid, construct a stoma between the pontocerebellar angle pool and the inferior petrosal sinus, and make the cerebrospinal fluid flow from the subarachnoid cavity to the venous sinus, to the jugular vein and to the heart, and participate in blood circulation. The access device can also be used for delivering a shunt, so that the hydrocephalus which can only be effectively treated by operation in the past can be treated by a minimally invasive interventional method, the access device is not used for surgical open operation, the intraoperative trauma is reduced, the operation time is saved, and the possibility of postoperative infection is greatly reduced.

This utility model discloses an adjustable backrest that is convenient for hunchback patients to use, relating to the field of medical device technology. The utility model includes a placement board, a main body component on top of the placement board, and anti-fall-off components on both sides of the placement board. This utility model supplies air to the back airbag, waist airbag, and hip airbag respectively through a back diverter, a waist diverter, and a hip diverter, causing the back airbag, waist airbag, and hip airbag to inflate to different heights. This allows the back airbag, waist airbag, and hip airbag to fit against the back, waist, and hip of the hunchback patient, respectively, enabling the hunchback patient to lie flat on the CT examination table. This solves the problem of existing technologies making it inconvenient for hunchback patients to lie flat. The L-shaped frame and second mounting plate drive the movement of the limiting airbags, which in turn limit the movement of the hunchback patient's waist on both sides, solving the problem of existing technologies failing to prevent the patient from falling off the examination table.