Chronic Hemodialysis Catheter with Balloon

Abstract

An indwelling catheter device and a method of treatment using the indwelling catheter device are provided. The indwelling catheter device includes an elongate shaft having a proximal portion, a distal portion, a first lumen extending longitudinally therethrough and an inflation lumen extending at least partially through the shaft. The distal portion of the shaft includes a first opening connected to the first lumen. The catheter device further includes a balloon operably connected to an outer surface of the shaft proximal to the first opening wherein the balloon at least partially surrounds the shaft. The inflation lumen is connected to the balloon for selective inflation and deflation of the balloon for disrupting migration of the occluding material and inhibiting the material from occluding the first opening when the catheter device is indwelling.

Description

TECHNICAL FIELD[0001]This invention relates generally to indwelling medical devices, and in particular, to catheters susceptible to fibrin deposition, such as catheters for use in hemodialysis treatment.BACKGROUND OF THE INVENTION[0002]Catheters or other medical devices for placement into a patient's vascular system are used for many procedures. Frequently these devices are left in place for extended periods, especially when the procedures are performed on a periodic basis and can include several treatments per week. For example, some catheters are used in the simultaneous introduction of fluid into the body and withdrawal of fluid from the body. Such indwelling catheters are particularly useful in hemodialysis. The hemodialysis catheter is typically inserted partially within the body with the distal end placed in a blood vessel and the proximal end external to the body and connectable to another device such as a dialysis unit. An indwelling hemodialysis catheter is advantageous in ...

AI Technical Summary

Benefits of technology

[0009]In another aspect of the present invention, a method for intraluminal treatment of a patient employing an indwelling catheter device is provided. The method includes inserting a distal end of a shaft of a catheter device into a vessel of the patient. The catheter device includes the shaft having a first lumen extending longitudinally therethrough to a first opening and a second lumen extending longitudinally therethrough to a second opening and a balloon operably connected to the shaft proximal to the first and second openings. The method further includes withdrawing a bodily fluid to be treated from the vessel through the second lumen and treating the fluid in a treatment instrument. The method includes infusing the treated fluid through the first lumen into the vessel and selectively inflating the balloon to inhibit occluding material from occluding the first and second openings.

Problems solved by technology

However, several disadvantages are associated with leaving an indwelling device in place for an extended period of time.

Occluding the opening(s) presents the additional problem that successive treatments require substantially more time to adequately perform the procedure and may increase the costs relating to the treatment.

However, some pharmaceutical compositions may further complicate the treatment and add to the costs of the procedure.

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