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June 4, 2024

Intraluminal Devices

An intraluminal device is any type of implantable medical devices placed inside a human or animal body. These medical devices can include stents, grafts, or any other implantable device which is placed inside of the body to serve some specific purpose. For example, some stents are used to support a damaged blood vessel wall or implanted as part of an aneurysm treatment. Other stents are designed to be used to treat diseases in specific organs such as the brain or heart. Some stents are also designed to be deployed using a surgical procedure, such as endoscopic insertion or percutaneous placement.

One of the most important complications of colorectal surgery is anastomotic leakage (AL). Many studies have demonstrated that AL can result in severe morbidity and mortality. Therefore, many different devices have been developed to prevent anastomotic dehiscence. One such device is the Coloshield. This is a soft, pliable tube which is placed over anastomotic sites to protect them from irritation and shear. Several non-randomized studies have been conducted in humans to test the efficacy of this device. These studies have reported anastomotic leakage rates of between 0% and 8.7%.[23-26] However, the Coloshield has not been widely implemented into clinical practice because it is expensive and requires specialized training to use.

Another example of an intraluminal device is the esophageal obturator, which is a medical device that is used to reduce esophageal regurgitation (AR). AR can cause pain and gastrointestinal symptoms. Moreover, it can increase the risk of mortality in patients who have chronic obstructive pulmonary disease. The esophageal obturator can be inserted using minimally invasive techniques and is an effective alternative to open surgery for the treatment of AR.

The invention also discloses a method of treating an aneurysm in a blood vessel comprising the steps of deploying a braided-tube intraluminal device in the blood vessel having an aneurysm located in the vicinity of a perforating vessel and/or a bifurcation leading to a branch vessel. The device is made from a mesh-like tubular member of bio-compatible material in an expanded condition, wherein the device has a diameter which is slightly larger than the diameter of the blood vessel in which it is being implanted and has a length sufficient to straddle the aneurysm. This intraluminal device can be used as a stent for supporting the wall of the blood vessel or for applying a graft to treat an aneurysm (see FIGS. 8 and 9 of Wallsten U.S. Pat. No. 4,954,126, the contents of which are incorporated by reference).

A stent is a metallic ring that is placed within a patient’s body to support the walls of a blood vessel or other tissue. A stent can be made of various materials, including stainless steel, PTFE, and polymer. Stents are also used to treat a variety of conditions, including peripheral artery disease and coronary artery disease. Often, these devices are covered with a thin coating to improve their appearance and ease of insertion.