What is claimed is:
1. An endovascular graft comprising:
a graft body section having an inflatable cuff and wherein the inflatable cuff contains a three-component inflation medium.
2. The endovascular graft of claim 1 wherein the inflation medium comprises the combination polyethylene glycol diacrylate, pentaerthyritol tetra 3(mercaptopropionate), and a buffer.
3. The endovascular graft of claim 2 wherein the buffer comprises glycylglycine.
4. The endovascular graft of claim 2 wherein the buffer comprises triethanolamine in phosphate-buffered saline.
5. The endovascular graft of claim 2 wherein the polyethylene glycol diacrylate is present in a proportion ranging from about 50 to about 55 weight percent.
6. The endovascular graft of claim 2 wherein the polyethylene glycol diacrylate has a molecular weight ranging from about 350 to about 850.
7. The endovascular graft of claim 2 wherein the pentaerthyritol tetra 3(mercaptopropionate) is present in a proportion ranging from about 22 to about 27 weight percent.
8. The endovascular graft of claim 2 wherein the glycylglycine is present in a proportion ranging from about 22 to about 27 weight percent.
9. The endovascular graft of claim 1 wherein the inflation material is radiopaque.
10. The endovascular graft of claim 9 wherein the inflation material comprises a radiopaque material that is soluble in glycylglycine.
11. The endovascular graft of claim 9 wherein the inflation material becomes less radiopaque over time.
12. The endovascular graft of claim 11 wherein the inflation material comprises a radiopaque material comprising a blend of a soluble contrast agent and an insoluble contrast agent.
13. The endovascular graft of claim 1 wherein the soluble contrast agent comprises an iodinated aqueous solution and the insoluble contrast agent comprises barium sulfate.
14. The endovascular graft of claim 1 wherein a post-cure elastic modulus of the inflation medium is between about 175 and about 250 pounds per square inch.
15. The endovascular graft of claim 14 wherein the inflation medium exhibits a cure time between about two minutes and about ten minutes.
16. The endovascular graft of claim 1 wherein the inflation medium additionally comprises saline or other inert biocompatible material.
17. The endovascular graft of claim 16 wherein the inflation medium comprises between about 20 and about 50 percent by volume saline.
18. The endovascular graft of claim 1 wherein the inflation medium comprises polyethylene glycol diacrylate, a thiolated polyethyleneamine, and a buffer.
19. The endovascular graft of claim 1 wherein the inflation medium comprises polyethylene glycol diacrylate, a thiolated tetronic, and a buffer.
20. The endovascular graft of claim 1 wherein the graft body section comprises an inflatable channel in fluid communication with the inflatable cuff.
21. The endovascular graft of claim 20 wherein the inflatable cuff is disposed at a proximal portion of the graft body section and further comprising a second inflatable cuff disposed at a distal portion of the graft body section and wherein the second inflatable cuff is in fluid communication with the inflatable channel and inflatable cuff.
22. An endovascular graft comprising:
a main body portion having at least one inflatable cuff,
a first bifurcated portion forming a continuous lumen with the main body portion, said lumen configured to confine a flow of fluid therethrough,
at least one inflatable channel extending from the first bifurcated portion to the main body portion,
wherein the inflatable cuff is in fluid communication with the inflatable channel, and
wherein the inflatable channel and inflatable cuff contain a three-component inflation medium.
23. The endovascular graft of claim 22 wherein the inflation medium comprises the combination polyethylene glycol diacrylate, pentaerthyritol tetra 3(mercaptopropionate), and a buffer.
24. The endovascular graft of claim 22 wherein the inflation material is radiopaque.
25. The endovascular graft of claim 22 further comprising a second bifurcated portion and wherein the inflatable channel extends to the second bifurcated portion.
26. The endovascular graft of claim 25 wherein the inflatable channel extends to a distal inflatable cuff disposed at a distal portion of one or both of the first and second bifurcated portions, and wherein each of the inflatable channel, at least one inflatable cuff, and distal inflatable cuffs are in fluid communication with each other.
27. A kit for the endovascular delivery of a graft, comprising:
a graft body section having an inflatable cuff,
a three-component inflation medium, and
instructions for use.
28. The kit of claim 27 wherein the graft body section further comprises an expandable member disposed on the graft body section and extending away from a proximal portion thereof.
29. The kit of claim 27 wherein each of the three components of the inflation medium is packaged separately.
30. The kit of claim 27 wherein the graft body section further comprises an inflatable channel in fluid communication with the inflatable cuff.
31. The kit of claim 28 further comprising a second inflatable cuff disposed at a distal portion of the graft body section in fluid communication with the inflatable channel and inflatable cuff.
32. The kit of claim 27 wherein the graft body section comprises a main body portion and at least one bifurcated portion forming a continuous lumen with the main body portion, said lumen configured to confine a flow of fluid therethrough.
33. The kit of claim 27 wherein the instructions for use comprise directions for mixing each of the three components with each other in a particular sequence and for a particular amount of time prior to introducing the three-component mixture into the graft body section inflatable cuff.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A developing device comprising:
a development roller that holds developer containing toner and carrier, rotates and transports the developer to a development area, and develops a latent image using the toner, the development area opposing an image holding member that holds the latent image;
a housing that has a first opening that opens towards the image holding member, wherein the housing holds the development roller so that the development area of the development roller is exposed from the first opening, the housing containing the developer therein;
an airflow path that has a second opening that opens towards the image holding member at a location below the first opening;
a blower that causes air in the airflow path to be sent in a direction in which the toner scattered between the housing and the image holding member is sucked from the second opening; and
a magnetic plate that is disposed in the housing, the magnetic plate opposing an end portion of the development roller in a direction of an axis of rotation of the development roller and extending so as to surround the development roller in a direction of rotation of the development roller,
wherein the housing has a suction hole, the suction hole being formed between an edge of the magnetic plate at a side of a lower edge of the first opening and the lower edge of the first opening, the suction hole being connected to the airflow path, the suction hole sucking the developer that has leaked out from the housing into the airflow path.
2. The developing device according to claim 1, wherein the housing has an inclined surface that extends obliquely downward towards an inner portion of the housing from the lower edge of the first opening with the inclined surface opposing the development roller, the inclined surface terminating at a wall surface that extends substantially vertically downward so as to oppose the end portion of the development roller in the direction of the axis of rotation of the development roller, and
wherein the suction hole is formed at an outer side of the wall surface so as to be situated adjacent to the wall surface in the direction of the axis of rotation of the development roller.
3. The developing device according to claim 1, wherein a portion of the magnetic plate situated towards the lower edge of the first opening in the direction of rotation of the development roller has a shape having a narrower-width potion that has a narrower width than a portion other than the narrower-width portion compared in the direction of the axis of rotation of the development roller, the narrower shape being formed by leaving a portion of the magnetic plate situated towards the end portion of the development roller in the direction of the axis of rotation of the development roller, and by cutting a portion of the magnetic plate situated towards a center of the development roller.
4. The developing device according to claim 2, wherein a portion of the magnetic plate situated towards the lower edge of the first opening in the direction of rotation of the development roller has a shape having a narrower-width potion that has a narrower width than a portion other than the narrower-width portion compared in the direction of the axis of rotation of the development roller, the narrower shape being formed by leaving a portion of the magnetic plate situated towards the end portion of the development roller in the direction of the axis of rotation of the development roller, and by cutting a portion of the magnetic plate situated towards a center of the development roller.
5. The developing device according to claim 1, wherein the development roller has a non-development area at the end portion of the development roller in the direction of the axis of rotation of the development roller, the non-development area not contributing to the development of the latent image on the image holding member, and
wherein the magnetic plate extends so as to oppose the non-development area.
6. The developing device according to claim 2, wherein the development roller has a non-development area at the end portion of the development roller in the direction of the axis of rotation of the development roller, the non- development area not contributing to the development of the latent image on the image holding member, and
wherein the magnetic plate extends so as to oppose the non-development area.
7. The developing device according to claim 3, wherein the development roller has a non-development area at the end portion of the development roller in the direction of the axis of rotation of the development roller, the non-development area not contributing to the development of the latent image on the image holding member, and
wherein the magnetic plate extends so as to oppose the non-development area.
8. The developing device according to claim 4, wherein the development roller has a non-development area at the end portion of the development roller in the direction of the axis of rotation of the development roller, the non-development area not contributing to the development of the latent image on the image holding member, and
wherein the magnetic plate extends so as to oppose the non-development area.
9. An image forming apparatus comprising:
an image holding member that holds a latent image, the image holding member holding a toner image when the latent image is developed;
a developing unit that develops the latent image on the image holding member with toner; and
a transfer fixing unit that transfers the toner image held by the image holding member to a recording medium, and that fixes the toner image,
wherein the developing unit includes
a development roller that holds developer containing toner and carrier, rotates and transports the developer to a development area, and develops the latent image using the toner, the development area opposing the image holding member,
a housing that has a first opening that opens towards the image holding member, wherein the housing holds the development roller so that the development area of the development roller is exposed from the first opening, the housing containing the developer therein,
an airflow path that has a second opening that opens towards the image holding member at a location below the first opening,
a blower that causes air in the airflow path to be sent in a direction in which the toner scattered between the housing and the image holding member is sucked from the second opening, and
a magnetic plate that is disposed in the housing, the magnetic plate opposing an end portion of the development roller in a direction of an axis of rotation of the development roller and extending so as to surround the development roller in a direction of rotation of the development roller,
wherein the housing has a suction hole, the suction hole being formed between an edge of the magnetic plate at a side of a lower edge of the first opening and the lower edge of the first opening, the suction hole being connected to the airflow path, the suction hole sucking the developer that has leaked out into the airflow path.