TUBULAR UNIT WITH VESSEL ENGAGING CUFF STRUCTURE

• US 3,889,685 A
• Filed: 11/02/1973
• Issued: 06/17/1975
• Est. Priority Date: 11/02/1973
• Status: Expired due to Term

• Current Assignee: George E. Miller Jr, Paul Kahn, William C. Dabney
• Original Assignee: George E. Miller Jr, Paul Kahn, William C. Dabney
• Inventors: Kahn, Paul, Miller, George E. Jr., Dabney, William C.
• Primary Examiner(s): Truluck, Dalton L.
• Application Number:
  US05/412,355
• Time in Patent Office: 592 Days
• Field of Search: 128/334R,348B,348,344,328,325
• US Class Current: 604/8
• CPC Class Codes: A61B 17/00 Surgical instruments, devices or methods, e.g. tourniquets A61B18/00 takes precedence; contraceptive devices, pessaries, or applicators therefor A61F6/00; eye surgery A61F9/007; ear surgery A61F11/00
• CPC Class Codes: A61B 17/11 for performing anastomosis; Buttons for anastomosis
• CPC Class Codes: A61B 17/12045 double occlusion, e.g. during anastomosis
• CPC Class Codes: A61B 17/12109 in a blood vessel
• CPC Class Codes: A61B 17/12136 Balloons
• CPC Class Codes: A61B 17/1219 expandable in contact with liquids
• CPC Class Codes: A61B 2017/12127 Double occlusion, e.g. for creating blood-free anastomosis site
• CPC Class Codes: A61M 25/00 Catheters; Hollow probes dilators A61M29/00; peritoneal catheters A61M1/285; tracheal tubes A61M16/04; for drainage A61M27/00; for uterus, vagina or rectum A61M31/00 ; for measuring or testing A61B; materials for catheters A61L29/00
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

The tubular unit with vessel engaging cuff structure is a unitary unit including a tube having a compressible cuff surrounding the outer surface thereof. The cuff includes a resilient, porous inner material surrounding the tube and an outer liquid impervious layer which may be bonded to or integrally formed with the inner material. The tube may include means to evacuate fluid from the cuff or, alternatively, separate means are directly connected to the cuff to accomplish such evacuation and contraction of the cuff. Vessel engaging appendages may be incorporated on the cuff.

Claims

1. A tubular unit with vessel engaging cuff structure for use within liquid conveying vessels of the body comprising a tube having an open end and a closed end, a compressible cuff surrounding said tube and mounted on said tube adjacent the closed end thereof, the tube being completely closed between said closed end thereof and a front wall of said cuff to preclude liquid from passing from said vessel into said tube and fluid from passing from said tube into said vessel, said cuff including a resilient, reticulated filler material having a network of fluid receiving interstices and a vessel engaging, flexible outer surface layer enclosing said filler material that is formed of a material which is impervious to liquids and gasses, the cuff also having a front wall adjacent the closed end of said tube which is inclined outwardly from said tube away from the closed end thereof, and a rear wall spaced from said front wall and having a substantially flat surface extending laterally from said tube, and conducting means communicating with said filler material to facilitate the withdrawal of fluid therefrom to contract said cuff inwardly toward said tube from a normal expanded configuration assumed by said cuff when said fluid receiving interstices are filled with fluid.

2. The tubular unit of claim 1 wherein said conducting means includes at least one aperture formed in said tube to connect the interior of said tube with said filler material.

3. The tubular unit of claim 1 wherein the rear wall of said cuff is substantially normal to the outer surface of said tube in the portion thereof surrounded by said cuff.

4. The tubular unit of claim 1 wherein the outer surface layer of said cuff forming said rear wall is of increased thickness adjacent said tube and decreases in thickness toward the outer extremities of said rear wall to impart greater stiffness to said rear wall in the area adjacent said tube.

5. The tubular unit of claim 1 wherein connector means are mounted on the open end of said tube to connect the tube to a suction source, said conducting means including a plurality of apertures formed in said tube to connect the interior of said tube with the filler material.

6. The tubular unit of claim 1 wherein said flexible outer surface layer is connected to said filler material to form a unitary cuff.

7. The tubular unit of claim 1 wherein said flexible outer surface layer is inelastic to prevent expansion of said cuff beyond a normal expanded configuration defined by said outer surface layer.