Irrigation handpiece with built in pulsing pump

A pulsed irrigation surgical handpiece, comprising:

• a pulsed irrigation liquid outlet means for applying irrigation liquid pulses to a surgical site;
• a pump having a movable portion reciprocatingly driveable for pumping pulses of irrigation liquid through said outlet means;
• powered drive means comprising a hollow shell containing a motor and a link reciprocatingly driven by said motor, said link having an output end extending reciprocatingly from said shell to reciprocatingly drive said pump movable portion;
• a handpiece housing containing said pump and shell, said handpiece housing being elongate and bent and comprising a handle and a barrel, said barrel being open to and extending forward from an intersection with the top of the handle at an angle thereto, said hollow shell extending lengthwise along and within said handle into said angled intersection of said handle and barrel and locating said motor in said handle remote from said angled intersection, said link extending at said angle from said shell and handle forwardly into and along the length direction of said barrel, said pump movable portion extending along the length direction of said barrel and being reciprocatingly driven by said link in said length direction of said barrel.

A disposable, compact, self-contained, pulsed irrigation, surgical system, comprising:

• a handheld handpiece housing carrying:
• (i) a pulsed irrigation liquid output tip for applying irrigation liquid pulses to a surgical site,
• (ii) a pump driveable for pumping pulses of irrigation liquid through said output tip,
• (iii) an electrical motor responsive to electrical energizing for driving said pump, and
• (iv) hand actuatable switch means electrically in circuit with said motor;
• a battery casing separate from and freely movable with respect to said handheld handpiece housing and containing electrical contacts for batteries;
• an elongate flexible irrigation liquid hose operatively connected to a liquid inlet of said pump and extending from said handpiece housing remotely to and then through one side of said battery casing, past said electrical contacts for batteries, to a fitting exposed on another side of said battery casing, said fitting having means for connecting directly and proximately to an irrigation liquid container;
• elongate flexible electrical conductors fixed with respect to, and running with, said elongate irrigation liquid hose from said battery contacts in said battery casing to said handpiece housing and thence to said motor and switch means in circuit with said motor for operation of said pump upon actuation of said switch means.

A pulsed irrigation surgical handpiece, comprising:

• a pump for supplying pulsed irrigation liquid to a surgical site;
• drive means actuable for driving said pump;
• a handheld handpiece housing which carries said pump and drive means;
• an elongate, elastically bendable, self restoring trigger lever having (1) a relatively short, leaf spring-like, elastically bendable midportion interconnecting (2) an upper end portion attached to said housing and (3) a relatively long, rigid, swinging lower portion operatively connected to said drive means, fulcrum means operatively interposed between said trigger lever bendable midportion and said housing, for (1) elastic bending of said trigger lever midportion in response to a manual pull-in force on said trigger lever lower portion from a rest position toward the handpiece housing and for (2) elastic unbending of said trigger lever midportion away from the handpiece housing to spring away from said housing toward said rest position upon release of such manual pull-in force;
• control means carried by said housing and actuated by said elastic bending of said trigger lever for actuating said drive means.

A pulsed irrigation surgical handpiece, comprising:

• a hollow housing comprising a handle;
• an elongate trigger extending along the front part of the handle;
• a suction tube and irrigation liquid tube extending side-by-side within said handle substantially the length of said handle to the top of said handle;
• an electric motor located in said handle, said tubes extending past said motor;
• a pump comprising an axially expandable and contractible bellows driven by said electric motor and connected to said irrigation liquid tube for pumping irrigation liquid for delivery to a surgical site;
• said motor having top and bottom ends and a rotatable shaft extending longitudinally from said top end toward the top of said handle, said motor bottom end being spaced above the bottom of said handle, a first electrical connector extending from the bottom of said motor toward said handle bottom, said electrical connector being for connection to an electric battery, means on a lower portion of said trigger adjacent said motor and responsive to pull in of said trigger for effecting a further electrical connection from said motor to an electric battery for electrically energizing said motor.