Implantable Injection Port

Abstract

An implantable injection port facilitates filling and/or draining an inflatable portion of a gastric band. In an embodiment, the port comprises a movable cap that causes anchor wires to extend from anchor devices in order to implant the injection port in the tissue of a patient. In another embodiment, the port comprises a handle that rotates to implant curved anchors into the tissue of a patient. In yet another embodiment, a cap is configured to move towards a base of the port in order to cause the curved anchors to rotate into the tissue of a patient. The cap may also rotate with respect to the base in order to lock the cap and the anchors in position. Further, surfaces of the injection port may be textured to increase adhesiveness to the patient's tissue during installation and to facilitate simpler installation.

What is claimed is: 
     
         1 . An implantable injection port for use in conjunction with a gastric band and for attaching to bodily tissue, the implantable injection port comprising:
 a body having a first opening;   a handle attached to the body, the handle moveable between a detached position and an attached position; and   a first anchor device configured to be positioned in the first opening of the body, the first anchor device attached to the handle such that moving the handle from the detached position to the attached position causes a portion of the first anchor device to move through the first opening to be positioned outside the body and moving the handle from the attached position to the detached position causes a portion of the first anchor device to move through the first opening to be positioned inside the body.   
     
     
         2 . The implantable injection port of  claim 1 , wherein the first anchor device is formed in the shape of a spiral and has a pointed end. 
     
     
         3 . The implantable injection port of  claim 1 , wherein the body has a center opening and an outer portion surrounding the center opening, the outer portion having a fitting for securing the handle adjacent to the body. 
     
     
         4 . The implantable injection port of  claim 1 , wherein the body has a second opening. 
     
     
         5 . The implantable injection port of  claim 4 , further comprising a second anchor device configured to be positioned in the second opening. 
     
     
         6 . The implantable injection port of  claim 1 , wherein the body has a pair of pivot hinges on which the first anchor device is rotatable. 
     
     
         7 . The implantable injection port of  claim 1 , wherein further comprising a second anchor device configured to be positioned in the second opening. 
     
     
         8 . The implantable injection port of  claim 1 , further comprising a fluid reservoir coupled to the base. 
     
     
         9 . The implantable injection port of  claim 8 , further comprising a self-sealing septum located proximate to the reservoir. 
     
     
         10 . The implantable injection port of  claim 9 , further comprising a port tubing in fluid communication with the reservoir. 
     
     
         11 . An implantable injection port, comprising:
 a base;   a handle rotatably attached to the base;   a curved anchor attached to the handle, such that when the handle is rotated on the base from an undeployed position to a deployed position, the curved anchor moves from a non-implanted position to an implanted position;   a reservoir disposed in the base; and   a quick-connect and strain relief fitting coupled to the reservoir.   
     
     
         12 . The implantable injection port of  claim 11 , further comprising a nib in the base to lock the handle in the implanted position. 
     
     
         13 . The implantable injection port of  claim 11 , further comprising a suture tab on the base. 
     
     
         14 . The implantable injection port of  claim 11 , further comprising a textured surface on the base to prevent slipping during implantation of the implantable injection port. 
     
     
         15 . The implantable injection port of  claim 11 , further comprising:
 a gastric band; and   gastric band tubing that connects to the gastric band,   wherein the quick-connect and strain relief fitting interfaces the reservoir relative to the gastric band tubing that.   
     
     
         16 . The implantable injection port of  claim 11 , further comprising port tubing that connects the reservoir to the quick-connect and strain relief fitting. 
     
     
         17 . The implantable injection port of  claim 11 , wherein a press-fit slot on the handle receives a press-fit hub on the base when the anchor is in the undeployed position. 
     
     
         18 . An implantable injection port for use with a gastric band, comprising:
 a base;   a reservoir disposed in the base, the reservoir having an outlet for fluid communication with the gastric band;   a self-sealing septum over proximate the reservoir;   a handle movably attached to the base;   a curved anchor coupled to the handle, such that when the handle is moved relative to the base from an undeployed position to a deployed position, the curved anchor moves from a non-implanted position to an implanted position.   
     
     
         19 . The implantable injection port of  claim 18 , further comprising:
 the gastric band; and   gastric band tubing that extends between the gastric band and the outlet of the reservoir.   
     
     
         20 . The implantable injection port of  claim 19 , further comprising:
 a quick-connect and strain relief fitting interfacing the outlet of the reservoir and the gastric band tubing.