11 results about "Distal catheter" patented technology

Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described.

Tissue closure systems are disclosed wherein one variation generally includes a handle, a proximal catheter segment extending from the handle, a deployment segment coupled to the proximal catheter segment, and a distal catheter segment pivotably coupled to the deployment segment such that the distal catheter segment is rotatable at an angle relative to the proximal catheter segment. A receiver member positioned within the deployment segment is configurable between a low-profile configuration and a deployed configuration. Two or more forward needle members and two or more rear needle members are extendable distally from a first side and a second side of the proximal catheter segment. The two or more forward needle members are receivable into the two or more openings along the first receiver portion and the two or more rear needle members are receivable into the two or more openings along the second receiver portion.

A catheter with a temperature sensor system having a catheter body including a hollow cylindrical inner liner having an inner liner outer surface, the inner liner extending in a longitudinal direction from a proximal catheter body end to a distal catheter body end of the catheter body, an outer insulation having an inner insulation surface, the outer insulation coaxially surrounding the inner liner, and a flexible circuit board comprising a plurality of electrical conductors, where the flexible circuit board is arranged between the inner liner outer surface and the inner insulation surface, and at least one electrode at the distal catheter body end, where the electrode is electrically conductively connected to at least one of the electrical conductors, wherein the flexible circuit board comprises at least one temperature sensor, where the temperature sensor is electrically conductively connected to at least one of the electrical conductors.

Provided in the present disclosure is a pericardiocentesis guide wire kit, which comprises a pericardiocentesis guide wire. The pericardiocentesis guide wire comprises an elastically deformable head portion, and the head portion is provided with a head portion body and a needle tip deflected relative to the head portion body. According to the degree of extension of the head portion in a catheter, the head portion can be deformed to be in a delivery configuration, a penetration configuration, and a fully bent configuration. In the delivery configuration, the head portion can be delivered by means of the catheter, the head portion is fully deployed within the catheter or only the needle tip is exposed outside a distal end of the catheter, and the distal end of the catheter is used for abutting against an outer wall of the pericardium. In the penetration configuration, a part of the head portion extends from the distal end of the catheter such that the needle tip penetrates an inner wall of the pericardium from the outer wall of the pericardium to be located between the inner wall of the pericardium and the myocardium, and the configuration that the needle tip is deflected relative to the head portion body is configured to enable the needle tip to deflect away from the inner wall of the pericardium. In the fully bent configuration, the head portion completely extends out of the distal end of the catheter and returns to the bent configuration, and the shape of the head portion is configured to enable the needle tip to be surrounded by the head portion body.

A tissue closure system is disclosed, one embodiment of which generally includes a handle, a proximal catheter section extending from the handle, a deployment section coupled to the proximal catheter section, and a distal catheter section pivotably coupled to the deployment section such that the distal catheter section is rotatable at an angle to the proximal catheter section. A receiving member positioned within the deployment section can be configured between a thin form and a deployed form. Two or more anterior policy members and two or more posterior policy members can extend distally from first and second sides of the proximal catheter section. Two or more anterior policy members can be received into two or more openings along the first receiving section, and two or more posterior policy members can be received into two or more openings along the second receiving section.

Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described.

A system for delivering a puncture system to puncture through a wall of a patient's blood vessel includes: a proximal catheter including a proximal lumen configured to accommodate both a primary navigation guide wire and the puncture system; a puncture system exit port in communication with the proximal lumen, wherein the puncture system exit port is configured to receive the puncture system, such that a portion of the puncture system passes through the puncture system exit port and exits the system; and a distal catheter including a distal lumen in communication with the proximal lumen, wherein the distal lumen is configured to accept the primary navigation guide wire and reject the puncture system, such that the primary navigation guide wire is able to enter the distal lumen and the puncture system is not able to enter the distal lumen.

A system for delivering a puncture system to puncture through a wall of a patient's blood vessel includes: a proximal catheter including a proximal lumen configured to accommodate both a primary navigation guide wire and the puncture system; a puncture system exit port in communication with the proximal lumen, wherein the puncture system exit port is configured to receive the puncture system, such that a portion of the puncture system passes through the puncture system exit port and exits the system; and a distal catheter including a distal lumen in communication with the proximal lumen, wherein the distal lumen is configured to accept the primary navigation guide wire and reject the puncture system, such that the primary navigation guide wire is able to enter the distal lumen and the puncture system is not able to enter the distal lumen.

This utility model discloses a suction device, belonging to the field of medical devices, comprising: a catheter lumen, which internally has a positive pressure chamber and a negative pressure chamber that are not interconnected, the central axis of the positive pressure chamber being parallel to the central axis of the negative pressure chamber; and a suction head, internally having a channel one and a channel two that are not interconnected, the suction head having a proximal end and a distal end. When the catheter lumen is connected to the proximal end of the suction head: the positive pressure chamber is connected to one of the channels one or two, and the negative pressure chamber is connected to the other of the channels one or two; channel one penetrates through channel two within the suction head and communicates with the outside from the distal end; convection holes are arranged around the outer wall of the suction head, and the convection holes are connected to channel two. Through the above configuration, this utility model can simultaneously perform flushing and suction operations on the area to be cleaned during treatment, thereby improving treatment efficiency and reducing the risk of infection for medical personnel during the cleaning process.

The invention relates to a catheter with a temperature sensor system comprising a catheter body having a hollow cylindrical inner lining with an inner lining outer surface, wherein the inner lining extends in a longitudinal direction from a proximal catheter body end to a distal catheter body end of the catheter body, an outer insulation with an insulating inner surface, wherein the outer insulation coaxially surrounds the inner lining, and a flexible printed circuit board which includes a multitude of electrical conductors, wherein the flexible circuit board is arranged between the inner lining outer surface and the insulation inner surface and at least one electrode at the distal end of the catheter body, wherein the electrode is electrically connected to at least one of the electrical conductors, wherein the flexible printed circuit board has at least one temperature sensor, wherein the temperature sensor is electrically connected to at least one of the electrical conductors. The invention further relates to a method for manufacturing such a catheter.