Some embodiments of a medical anchor device include an elongate body coupled with deployable subcutaneous anchors to secure a catheter instrument (or other medical instrument) in place relative to a skin penetration point. In some circumstances, the elongate body may be in the form of catheter hub body, and the subcutaneous anchors can be deployed from the hub body by adjustment of a movable actuator. A locking member can interact with the actuator so as to retain the actuator in the deployed orientation during the medical procedure.

A delivery catheter system includes a guide catheter, an anchor catheter, a collapsible and expandable anchor, a balloon formed from a portion of the positioning catheter, and a needle. The anchor may be for anchoring a prosthetic heart valve in a native heart valve. The anchor may be configured to be received within the anchor catheter. The balloon may be inflated or deflated and provide mechanical support to enable the needle to pierce a ventricle wall. A metallic guide wire can simultaneously be inserted through the aorta to outline the heart when viewed through fluoroscopic imaging.

Some embodiments of a medical device anchor system includes an anchor sleeve and a catheter (or other medical instrument) to advance though a working channel of the anchor sleeve. The anchor sleeve may have a subcutaneous cuff device arranged along an outer surface. In such circumstances, the embedded cuff device can inhibit the migration of infection from outside the skin and into the blood stream.

Devices and methods for providing an internal balloon sheath are disclosed. One device includes a sheath for insertion through an arteriotomy of a patient. The sheath comprises a tubular sheath body having a longitudinal axis, an open proximal end, an open distal end, an outer surface and an inner surface, the inner surface defining a lumen between the proximal and distal ends for passage of a catheter device. The sheath also comprises an inflatable balloon disposed within the lumen. The inflatable balloon is configured to occupy a longitudinal space in the lumen between the inner surface of the sheath body and the catheter device when the catheter device is disposed within the sheath and the balloon is inflated, and fluidically seal the lumen.

The present disclosure provides a detachable surgery drainage tube capable of being sutured and fixed, relates to a technical field of surgery drainage tubes, including a tube body, a suture line, and a first limiting component. The tube body is hollow. The suture line has a length, and is configured to act on a part to be drained. The first limiting component is an annular structure, and a structure of the first limiting component is easy to be cut by scissors. The first limiting component is disposed in the tube body, and two ends of the first limiting component are fixed at two ends of the tube body. A fixing component is disposed on the tube body with respect to the first limiting component, a fixing groove is disposed on the fixing component, the fixing groove is perforated, and the first fixing component penetrates through the fixing groove.

A retention device for anchoring indwelling catheters, sheath introducers, feeding tubes, ostomy bags or other medical devices beneath the skin of a patient includes an deployable section coupled to a medical device; following introduction into a patient, the deployable section is subcutaneously deployed, securely anchoring the device and coupled medical device for the duration of treatment.

A nephroureteral catheter is provided that comprises a detachable portion such that when the detachable portion is removed, the catheter converts into an internal stent. The catheter includes a tube with two retention features, a detachable portion, and an inner tube. The inner tube is removably insertable into both the tube and the detachable portion, and a wire extends through at least a portion of a lumen of the inner tube and through the tube, to keep the pieces attached. The wire may be removed to remove the inner tube and then the detachable portion from the tube. When the detachable portion is attached to the tube, the catheter is a nephroureteral catheter. When the detachable portion is removed from the tube, the catheter becomes a stent.

A vacuum aspiration system may be used to treat thromboembolic disease, such as deep vein thrombosis or pulmonary embolism. The system includes a housing, and a fluid flow path extending through the housing. A first catheter is in fluid communication with the flow path, and a connector is configured to place a source of aspiration in communication with the flow path. A clot container is carried by the housing. A hemostasis valve is provided in the housing, and configured to receive a second catheter and direct the second catheter through the first catheter.

A treatment system includes a guide, tubular dilator members, an operation portion, and a holding portion. The guide extends linearly or curvilinearly. The dilator members pass the guide inside and are configured to move forward along the guide. The operation portion is configured to sequentially move the plurality of dilator members from a proximal end side of the guide to a distal end side of the guide. The holding portion is provided on the guide. A distance between outer edges of the holding portion in a direction intersecting a direction from the proximal end side toward the distal end side of the guide is larger or is configured to be larger than a distance between outer edges of the guide.

A split dilator aspiration system is disclosed. The system includes a catheter, having an elongate, flexible tubular body with a proximal end, a distal end, a side wall defining a central lumen, and a handle on the proximal end. A dilator is advanceable through the central lumen, the dilator having an elongate body, cannulated to receive a guidewire, and an axially extending split along at least a portion of the elongate body, configured to allow removal of a portion of the dilator laterally from the guidewire.