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The Rist™ 079 Radial Access Guide Catheter is indicated for the introduction of interventional devices into the peripheral, coronary, and neuro vasculature. The Rist™ 071 Radial Access Guide Catheter is indicated for the introduction of interventional devices into the peripheral, coronary, and neuro vasculature. The Rist™ Radial Access Selective Catheter is indicated for the introduction of interventional devices into the peripheral, coronary, and neuro vasculature. It can be used to facilitate introduction of diagnostic agents in the neuro vasculature. It is not intended to facilitate introduction of diagnostic agents in coronary or peripheral arteries.

The Rist™ Radial Access Selective Catheter is a flexible, single lumen catheter, with a radiopaque stainless-steel braid reinforced shaft to provide support. The distal tip of the catheter is shaped to have a smooth, rounded tip and is offered in two different distal segment shapes: Simmons 2 (SIM2) and Berenstein (BER). The braided, tapered shaft of the catheter is visible under fluoroscopy and has a luer connector in its proximal end for the attachment of accessories and the infusion of fluids. The Rist™ Radial Access Selective Catheter has no hydrophilic coating. The Rist™ Radial Access Selective Catheter is supplied sterile, non-pyrogenic, and intended for single use only. The Rist™ 079 Radial Access Guide Catheter is a single lumen, variable stiffness catheter with a stainless steel and nitinol reinforced shaft to provide support. The catheter has a radiopaque marker band on the distal end to aid in visualization. The distal 25 cm of the Rist™ 079 Radial Access Guide Catheter has a hydrophilic coating which reduces the insertion force and allows the catheter to traverse the vasculature more easily. The Rist™ 079 Radial Access Guide Catheter has a PTFE-lined lumen to reduce friction with other devices introduced through the lumen. It is intended to provide access to the target site via transradial access and, once in place, provides a reinforcing conduit for other intravascular devices. A radial access dilator is included as an accessory. The Rist™ 079 Radial Access Guide Catheter is supplied sterile, non-pyrogenic, and intended for single use only. The Rist™ 071 Radial Access Guide Catheter is a single lumen, variable stiffness catheter with a stainless steel and nitinol reinforced shaft to provide support. The embedded stainless-steel flat wire cross coil is in the proximal section of the catheter, which transitions to a nitinol round wire single coil in the distal end. The catheter has a radiopaque platinum/iridium marker band on to aid in visualization. The distal 25 cm of the Rist™ 071 Radial Access Guide Catheter has a hydrophilic coating which reduces the insertion force and allows the catheter to traverse the vasculature more easily. The Rist™ 071 Radial Access Guide Catheter has a PTFE- lined lumen to reduce friction with other devices introduced through the lumen. It is intended to provide access to the target site via transradial access and, once in place, provides a reinforcing conduit for other intravascular devices. A radial access dilator is included as an accessory. The Rist™ 071 Radial Access Guide Catheter is supplied sterile, non-pyrogenic, and intended for single use only.

The Riptide™ Aspiration Pump is intended as a vacuum source for Medtronic aspiration devices or systems for use in hospitals or clinics. Refer to the Instructions for Use included with the accessory aspiration device for indications related to the procedure for which this device will be used.

The Riptide™ Aspiration Pump is an externally powered electromechanical device capable of generating a vacuum designed for drawing fluids and thrombus into the Riptide™ Collection Canister during interventional procedures. It is intended for general suction use in hospitals or clinics and is not intended for transport or field applications. The Riptide™ Aspiration Pump includes a receptacle that holds the Riptide™ Collection Canister with Intermediate Tubing in place. The intermediate tubing is connected to the vacuum inlet port. The Riptide™ Aspiration Pump package includes the following: - Riptide™ Aspiration Pump (LMT-RAP) - Region specific power cord for connection to earthed receptacle. - Riptide™ Aspiration Pump User's Manual The following item is required for use with Riptide™ Aspiration Pump (packaged separately): - Riptide™ Collection Canister with Intermediate Tubing (LMT-RCT) The Riptide™ Collection Canister is provided non-sterile and is pre-assembled with the Intermediate Tubing. The Riptide™ Collection Canister with Intermediate Tubing is single use. The Riptide™ Collection Canister is the repository for aspirated material. The Riptide™ Canister is placed into the receptacle of the Riptide™ Aspiration Pump as shown in Figure 3. The Intermediate Tubing is then connected to the vacuum inlet port.

The Riptide™ Aspiration System is intended for use in the revascularization of patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease (within the internal carotid, middle cerebral M1 and M2 segments, basilar, and vertebral arteries) within 8 hours of symptom onset. Patients who are ineligible for thrombolytic drug therapy or who failed thrombolytic drug therapy are candidates for treatment.

The Riptide™ Aspiration System is designed to restore blood flow in patients with acute ischemic stroke secondary to intracranial large vessel occlusive disease within the internal carotid, middle cerebral – M1 and M2 segments, basilar, and vertebral arteries, using continuous aspiration. The Riptide™ Aspiration System is composed of the following components and illustrated in Figure 1: - 1. React™ 68 Catheter (REACT-68), React™ 71 Catheter (REACT-71, REACT-71-115, REACT-71-125) - 2. Riptide™ Large Bore Aspiration Tubing (MAT-110-110) - 3. Riptide™ Aspiration Pump (MAP-1000) - 4. Riptide™ Collection Canister with Intermediate Tubing (MAC-1200)