Inflatable penile prosthesis with four-way valve pump

An inflatable penile prosthesis comprising:

• an inflatable member;
• a reservoir configured to hold fluid;
• and
• a pump assembly configured to facilitate a transfer of the fluid from the reservoir to the inflatable member when in an inflation mode, and facilitate the transfer of the fluid from the inflatable member to the reservoir when in a deflation mode, the pump assembly including:
• a pump defining a pump bulb and a valve body connector integrally formed with the pump bulb, the valve body connector defining a cavity;
• a valve body that is at least partially disposed within the cavity of the valve body connector, the valve body including a first check valve and a second check valve, the valve body includes a first interior portion that defines a first fluid channel, a second fluid channel, and a third fluid channel that extend to the pump bulb, the valve body including a second interior portion that define a fourth fluid channel for transferring the fluid to and from the reservoir and a fifth fluid channel for transferring the fluid to and from the inflatable member;
• and
• a spool configured to move within a lumen of the valve body to switch between the inflation mode and the deflation mode.

A method for operating an inflatable penile prosthesis, the method comprising:

• moving a spool of a pump assembly to place the inflatable penile prosthesis in an inflation mode or a deflation mode, the pump assembly further including a pump and a valve body, the valve body defining a first port, a second port, and a third port operatively coupled to the pump, a fourth port operatively coupled to a reservoir to transfer fluid to an inflatable member, and a fifth port operatively coupled to the inflatable member to transfer fluid to the reservoir;
• during the inflation mode, transferring fluid from the reservoir to the inflatable member via the fourth port to the first port to the second port and through the fifth port;
• and
• during the deflation mode, transferring fluid from the inflatable member to the reservoir via the fifth port to the third port to the second port and through the fourth port.