# US 11,305,053 B2 · Surgical handpiece having directional fluid control capabilities > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,305,053 B2 - Document ID: US11305053B2 - Status: Granted - Kind: B2 - Application number: 13/772,803 - Filed: 2013-02-21 - Published: 2013-11-28 - Granted: 2022-04-19 - Earliest claimed: 2012-05-25 - Assignees: Johnson & Johnson Surgical Vision, Inc. - Applicants: Johnson & Johnson Surgical Vision, Inc. - Inventors: Michael J Claus; Mitchell W Mallough - Web page: https://patentgrep.com/patent/US11305053B2 ## CPC - A61M 3/00: Medical syringes, e.g. enemata; Irrigators (A61M5/00 takes precedence; pistons A61M5/315) - A61F 9/00745: {using mechanical vibrations, e.g. ultrasonic} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A medical system is provided having a system host and a control device connected to the system host. The medical system further includes a handpiece having a sleeve with a port opening configured to enable fluid to pass there through, a fluid channel connected to the port opening, and a fluid flow restrictor configured to restrict fluid flow of the fluid channel through the port opening. The control unit is configured to receive input from a user and control an amount of fluid provided by the fluid flow restrictor based on the input received from the user. In one aspect, the medical system is a phacoemulsification system, the handpiece a phacoemulsification handpiece, and the control device a footpedal. ## Claims ### Claim 1 A medical system comprising: a system host device; a handpiece connected to the system host device comprising: a sleeve having a first port opening and a second port opening, wherein the first port opening and the second port opening independently dispense fluid therethrough, a first fluid channel connected to the first port opening, a second fluid channel connected to second port opening, a first fluid flow restrictor that variably restricts irrigation fluid flow through the first fluid channel independent of a pressure of the fluid at the first fluid flow restrictor; a second fluid flow restrictor that variably restricts irrigation fluid flow through the second fluid channel independent of a pressure of the fluid at the second fluid flow restrictor; and a controller connected to the system host device; wherein the system host device comprises instructions that when executed cause the system host to provide signals to the handpiece to electronically and individually control the first fluid flow restrictor and second fluid flow restrictor to control the direction of the fluid flow through the first fluid channel and the second fluid channel based on input received at the controller from a user. ### Claim 2 (depends on 1) The medical system of claim 1, wherein the first fluid flow restrictor comprises a hinged gate type mechanism configured to open and close based on signals received from the system host device. ### Claim 3 (depends on 1) The medical system of claim 1, wherein the controller is a dual axis footpedal. ### Claim 4 (depends on 1) The medical system of claim 1, wherein the controller is a footpedal, and signals received from the footpedal are employed by the system host to cause a bias in the amount of fluid provided by the first fluid channel and the second fluid channel. ### Claim 5 (depends on 3) The medical system of claim 3, wherein one axis of the footpedal is configured to control the first fluid flow restrictor and an alternate control input is configured to control the second fluid flow restrictor. ### Claim 6 (depends on 1) The medical system of claim 1, wherein the medical system is a phacoemulsification system and the handpiece is a phacoemulsification handpiece. ### Claim 7 A handpiece configured for use in a medical system, comprising: a sleeve comprising a first port opening and a second port opening, wherein the first pot opening and the second port opening independently dispense fluid therethrough; a first fluid channel disposed within the handpiece and connected to the first port opening a second fluid channel disposed within the handpiece and connected to the second port opening; a first fluid flow restrictor disposed within the handpiece that variably restricts irrigation fluid flow through the first fluid channel independent of a pressure of the fluid at the first fluid flow restrictor; and a second fluid flow restrictor disposed within the handpiece that variably restricts irrigation fluid flow through the second fluid channel independent of a pressure of the fluid at the second fluid flow restrictor; wherein the handpiece: receives a signal from a control unit, wherein the signal is based on an input from a user, and electronically and individually controls a degree of opening of the first fluid flow restrictor and the second fluid flow restrictor to control the direction of the irrigation fluid flow through the first fluid channel and the direction of the irrigation fluid flow through the second fluid channel based on the signal. ### Claim 8 (depends on 7) The handpiece of claim 7, wherein the first fluid flow restrictor comprises a hinged gate type mechanism configured to open and close based on signals received from the control unit. ### Claim 9 (depends on 7) The handpiece of claim 7, wherein the control unit comprises a dual axis footpedal. ### Claim 10 (depends on 7) The handpiece of claim 7, wherein the control unit comprises a footpedal, and the handpiece is configured to receive signals from the footpedal and control the first fluid flow restrictor and the second fluid flow restrictor based on the signals received from the footpedal. ### Claim 11 (depends on 9) The handpiece of claim 9, wherein: the first fluid flow restrictor is controlled based on movement of the footpedal along a first axis; and the second fluid flow restrictor is controlled based on a state of an alternate input mechanism provided with the footpedal. ### Claim 12 (depends on 7) The handpiece of claim 7, wherein the handpiece is a phacoemulsification handpiece. ### Claim 13 A medical system comprising a system host and a control device connected to the system host, the medical system further comprising: a handpiece communicatively connected to the system host, comprising: a sleeve comprising a first port opening and a second port opening, wherein the first port opening and the second port opening independently dispense fluid therethrough, a first fluid channel disposed within the handpiece and connected to the first port opening, a second fluid channel disposed within the handpiece and connected to the second port opening, a first fluid flow restrictor disposed within the handpiece that variably restricts irrigation fluid flow through the first fluid channel independent of a pressure of the fluid at the first fluid flow restrictor; and a second fluid flow restrictor disposed within the handpiece that variably restricts irrigation fluid flow through the second fluid channel independent of a pressure of the fluid at the second fluid flow restrictor; wherein the control device: receives input from a user, and generates a control signal based on the input to control an amount of irrigation fluid and direction of irrigation fluid dispensed by the first port opening and the second port opening based on the input received from the user; wherein the handpiece: receives the control signal, and electronically and individually controls a degree of opening of the first fluid flow restrictor and the second fluid flow restrictor, respectively, to control the amount of irrigation fluid and direction of the irrigation fluid flow through the first fluid channel and the amount of irrigation fluid and direction of the irrigation fluid flow through the second fluid channel based on the control signal. ### Claim 14 (depends on 13) The medical system of claim 13, wherein the first fluid flow restrictor comprises a hinged gate type mechanism configured to open and close based on signals received from the control device. ### Claim 15 (depends on 13) The medical system of claim 13, wherein the control device comprises a footpedal. ### Claim 16 (depends on 13) The medical system of claim 13, wherein the control device comprises a dual axis footpedal, and the handpiece further: receives signals from the footpedal, and controls the first-fluid flow restrictor and the second flow restrictor based on the signal from the footpedal. ### Claim 17 (depends on 15) The medical system of claim 15, wherein: the first fluid flow restrictor is controlled based on movement of the footpedal along a first axis; and the second fluid flow restrictor is controlled based on a state of an alternate input mechanism provided with the footpedal. ### Claim 18 (depends on 13) The medical system of claim 13, wherein the medical system is a phacoemulsification system and the handpiece is a phacoemulsification handpiece. ### Claim 19 A medical system comprising: a system host device; a handpiece connected to the system host device comprising: a sleeve having a first port opening and a second port opening wherein the first port opening and the second port opening independently dispense fluid therethrough, a first fluid channel connected to the first port opening, a second fluid channel connected to the second port opening, a first fluid flow restrictor that restricts irrigation fluid flow through the first fluid channel, and a second fluid flow restrictor that restricts irrigation fluid flow through the second fluid channel; and a controller communicatively connected to the system host device; wherein the system host device comprises instructions that when executed cause the system host to provide signals to the handpiece to electronically and independently control the first fluid flow restrictor and the second fluid flow restrictor to control the direction of the fluid flow through the first fluid channel and the direction of the fluid flow through the second fluid channel based on input received at the controller from a user, and wherein the control of the first fluid flow restrictor and second fluid flow restrictor is independent of a pressure of the fluid flow through the first fluid channel and the second fluid channel. ### Claim 20 (depends on 7) The handpiece of claim 7, wherein the handpiece is configured to control a degree of restriction imposed on the irrigation fluid by the first fluid flow restrictor and the second fluid flow restrictor based on the signal. ### Claim 21 (depends on 7) The handpiece of claim 7, wherein the first fluid flow restrictor is configured to change degree of opening through which the irrigation fluid flows based on the signal, and wherein the second fluid flow restrictor is configured to change degree of opening through which the irrigation fluid flows based on the signal, wherein the first fluid flow restrictor and the second fluid flow restrictor are independently controlled. ### Claim 22 (depends on 21) The handpiece of claim 21, wherein the degree of opening includes fully closed, fully open, and partially open.