초록 ▼

A fluid transfer system for an inflatable sphincter prosthesis is disclosed. The implantable inflatable sphincter prosthesis may include a fluid transfer system and at least one inflatable cuff for occluding a body channel. The fluid transfer system may include an inflate pump, a deflate pump, and t

A fluid transfer system for an inflatable sphincter prosthesis is disclosed. The implantable inflatable sphincter prosthesis may include a fluid transfer system and at least one inflatable cuff for occluding a body channel. The fluid transfer system may include an inflate pump, a deflate pump, and three one-way valves.

대표청구항 ▼

1. An implantable sphincter prosthesis comprising a fluid transfer system and an inflatable cuff for occluding a body channel, said fluid transfer system comprising: an inflate pump having a first elastomeric pump bulb, said first elastomeric pump bulb being volitionally deformable to create a posit

1. An implantable sphincter prosthesis comprising a fluid transfer system and an inflatable cuff for occluding a body channel, said fluid transfer system comprising: an inflate pump having a first elastomeric pump bulb, said first elastomeric pump bulb being volitionally deformable to create a positive intraluminal pump pressure that forces fluid to be exhausted from the inflate pump;a deflate pump having a second elastomeric pump bulb, said second elastomeric pump bulb being volitionally deformable to create a positive intraluminal pump pressure that forces fluid to be exhausted from the deflate pump;a first one-way valve located between said inflate pump and said inflatable cuff with a first fluid flow through said first one-way valve directed from said inflate pump to said inflatable cuff;a second one-way valve located between said inflatable cuff and said inflate pump with a second fluid flow through said second one-way valve directed from said inflatable cuff to said inflate pump, the second one-way valve having a backpressure corresponding to a desired intraluminal pressure of the inflatable cuff in an inflated state, the first one-way valve having a backpressure greater than the backpressure of the second one-way valve; anda third one-way valve located between said inflatable cuff and said inflate pump and having a third fluid flow through said third one-way valve directed from said inflatable cuff to said inflate pump, the third one-way valve having at least substantially zero backpressure,wherein said fluid transfer system enables fluid to flow from said inflate pump to said inflatable cuff when said inflate pump is volitionally deformed to provide patient continence, and wherein volitional deformation of said second elastomeric pump bulb imposes a negative intraluminal deflate pump pressure that enables fluid to flow from said inflatable cuff to said deflate pump and said inflate pump upon activation of said deflate pump to permit patient voiding. 2. The implantable sphincter prosthesis of claim 1, wherein, subsequent to volitional deformation, said first elastomeric pump bulb is incapable of imposing a negative intraluminal inflate pump pressure. 3. The implantable sphincter prosthesis of claim 1, wherein, subsequent to volitional deformation, said second elastomeric pump bulb imposes a negative intraluminal deflate pump pressure to cause fluid to fill the deflate pump. 4. The implantable sphincter prosthesis of claim 1, wherein said second one-way valve comprises a cartridge valve comprising a cartridge having internal threads, a ball or poppet valve component, a valve seat, a compression spring, and a hex set screw with a through hole serving as a fluid port. 5. The implantable sphincter prosthesis of claim 4, wherein said hex set screw is factory adjusted to provide a spring compression to create a desired backpressure of the second one-way valve. 6. The implantable sphincter prosthesis of claim 1, wherein said second one-way valve has a backpressure in a range of 45 cm H2O to 85 cm H2O. 7. The implantable sphincter prosthesis of claim 1, wherein said inflate pump is integral with said deflate pump and at least one of the first one-way valve, the second one-way valve, and the third one-way valve. 8. The implantable sphincter prosthesis of claim 1, further comprising a tube in fluid communication with and connecting said fluid transfer system and said inflatable cuff. 9. The implantable sphincter prosthesis of claim 1, wherein said inflate pump is located distally from said deflate pump and said inflatable cuff. 10. The implantable sphincter prosthesis of claim 1, wherein said deflate pump is located distally from said inflate pump and said inflatable cuff. 11. The implantable sphincter prosthesis of claim 1, wherein said implantable prosthesis comprises one of an artificial urinary sphincter for treatment of urinary incontinence and an artificial anal sphincter for treatment of fecal incontinence. 12. The implantable sphincter prosthesis of claim 1, wherein said inflatable cuff is configured to completely encircle a urethra or an anal canal. 13. The implantable sphincter prosthesis of claim 1, wherein said inflatable cuff is configured to partially contact a urethra or an anal canal. 14. The implantable sphincter prosthesis of claim 13, further comprising a sling arrangement configured to support said inflatable cuff. 15. The implantable sphincter prosthesis of claim 1, further comprising a valve body positioned between said inflate pump and said deflate pump and containing one or more valves. 16. The implantable sphincter prosthesis of claim 1, wherein said deflate pump comprising an elastomeric pump bulb having projections formed thereon. 17. An implantable sphincter prosthesis comprising a fluid transfer system and an inflatable cuff for occluding a body channel, said fluid transfer system comprising: an inflate pump having a first elastomeric pump bulb, said first elastomeric pump bulb being volitionally deformable to create positive intraluminal pump pressure that forces fluid to be exhausted from the inflate pump, wherein, subsequent to volitional deformation, said first elastomeric pump bulb is incapable of imposing a negative intraluminal inflate pump pressure;a deflate pump having a second elastomeric pump bulb, said second elastomeric pump bulb being volitionally deformable to create a positive intraluminal pump pressure that forces fluid to be exhausted from the deflate pump, wherein, subsequent to volitional deformation, said second elastomeric pump bulb imposes a negative intraluminal deflate pump pressure to cause fluid to fill the deflate pump;a first one-way valve located between said inflate pump and said inflatable cuff with a first fluid flow through said first one-way valve directed from said inflate pump to said inflatable cuff;a second one-way valve located between said deflate pump and said inflate pump with a second fluid flow through said second one-way valve directed from said deflate pump to said inflate pump, the second one-way valve having a backpressure corresponding to a desired intraluminal pressure of the inflatable cuff in an inflated state, the first one-way valve having a backpressure greater than the backpressure of the second one-way valve; anda third one-way valve located between said inflatable cuff and said deflate pump with a third fluid flow through said third one-way valve directed from said inflatable cuff to said deflate pump, the third one-way valve having at least substantially zero backpressure,wherein said fluid transfer system enables fluid to flow from said inflate pump to said inflatable cuff when said inflate pump is volitionally deformed to provide patient continence, and wherein said third fluid flow enables fluid to flow from said inflatable cuff to said deflate pump and said inflate pump upon activation of said deflate pump to permit patient voiding. 18. The implantable sphincter prosthesis of claim 17, wherein the third one-way valve includes a vent feature that allows fluid pressure to equilibrate between said deflate pump and said inflatable cuff to cause said deflate pump to function as a pressure reservoir for said inflation cuff to maintain the desired intraluminal cuff pressure. 19. The implantable sphincter prosthesis of claim 18, wherein said vent feature comprises at least one of a projection, an indentation of the valve seat, or a fin within the fluid port leading into the third one-way valve. 20. The implantable sphincter prosthesis of claim 17, wherein the third one-way valve comprises an unbiased check valve utilizing a ball or poppet component having a specific gravity substantially equivalent to the specific gravity of the fluid used to fill the device.