MOTOR DRIVEN MULTI-OUTPUT SURGICAL PUMP ASSEMBLY AND SURGICAL GENERATOR INCORPORATING THE SAME - Patent application

Abstract

To provide a motor-driven, multi-output surgical pump assembly and a surgical generator incorporating the same.SOLUTION: A surgical pump assembly includes a motor configured to provide a motor output, a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs, and a plurality of pumps. Each pump of the plurality of pumps is configured to receive one of the transmission outputs. A surgical generator includes at least one energy module configured to generate an energy-delivery signal, at least one energy port configured to connect to a surgical instrument to deliver the energy-delivery signal thereto, and the surgical pump assembly.SELECTED DRAWING: None

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of and priority to U.S. Provisional Patent Application No. 62 / 952,245, filed December 21, 2019, the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to a surgical pump assembly, and more particularly to a multiple output, motor driven surgical pump assembly and a surgical generator incorporating same. [Background technology]

[0003] Surgical pumps are utilized for a variety of different purposes during the course of a surgical procedure. For example, surgical pumps may be utilized for irrigation, aspiration, smoke evacuation, insufflation, inflation / deflation of telescoping structures, circulate fluids in open and / or closed loops, and the like. In some surgical procedures, multiple pumping operations are utilized simultaneously, sequentially, alternating, and / or overlapping. Often these multiple pumping operations require different pump outputs to provide different operating parameters, e.g., flow rates, fluid pressures, and the like.

[0004] A surgical generator is utilized to power and / or provide energy to the surgical instrument to enable application of energy, such as, for example, electrosurgical (monopolar and / or bipolar radio frequency (RF)), ultrasonic energy, thermal energy, microwave energy, etc., from the surgical instrument to tissue. Summary of the Invention [Means for solving the problem]

[0005] As used herein, the term "distal" refers to a portion that is described as being further from the user, while the term "proximal" refers to a portion that is described as being closer to the user. Further, to the extent not inconsistent, any or all of the aspects described herein may be used in conjunction with any or all of the other aspects described herein.

[0006] In accordance with an aspect of the present disclosure, a surgical pump assembly is provided that includes a motor configured to provide a motor output, a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs, and a plurality of pumps, each of which is configured to receive one of the plurality of transmission outputs.

[0007] In an aspect of the present disclosure, at least one transmit power of the plurality of transmit powers is variable independently of other transmit powers of the plurality of transmit powers.

[0008] In another aspect of the disclosure, at least two of the plurality of transmit outputs are different from one another.

[0009] In another aspect of the disclosure, at least two different transmit outputs of the plurality of transmit outputs correspondingly drive at least two pumps of the plurality of pumps in different manners.

[0010] In yet another aspect of the present disclosure, at least two different transmission outputs of the plurality of transmission outputs are at different rotational speeds.

[0011] In yet another aspect of the present disclosure, a transmission assembly includes a plurality of transmissions, each transmission of the plurality of transmissions coupled between the motor and one of the plurality of pumps.

[0012] In yet another aspect of the present disclosure, at least two of the multiple transmission sections define different input-to-output ratios.

[0013] In another aspect of the present disclosure, at least one transmission section of the plurality of transmission sections is controllable to vary its input-to-output ratio. In an aspect, at least two transmission sections of the plurality of transmission sections are independently controllable to independently vary their input-to-output ratio.

[0014] In yet another aspect of the disclosure, a controller is disposed in communication with the transmission assembly and configured to instruct the transmission assembly to independently vary at least one transmission power of the plurality of transmission powers.

[0015] Also provided in accordance with an aspect of the present disclosure is a surgical generator including a surgical pump assembly according to any of the aspects described above or otherwise detailed herein. The surgical generator further includes at least one energy module configured to generate an energy delivery signal and at least one energy port configured to connect to a surgical instrument and deliver the energy delivery signal thereto. The present invention provides, for example: (Item 1) 1. A surgical pump assembly comprising: a motor configured to provide a motor output; a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs; A surgical pump assembly comprising: a plurality of pumps, each pump of the plurality of pumps configured to receive a transmission output of one of the plurality of transmission outputs. (Item 2) 2. The surgical pump assembly of claim 1, wherein at least one transmission output of the plurality of transmission outputs is variable independently of other transmission outputs of the plurality of transmission outputs. (Item 3) 2. A surgical pump assembly as described in any preceding claim, wherein at least two of the plurality of transmission outputs are different from one another. (Item 4) 11. A surgical pump assembly as described in any preceding item, wherein the at least two different transmission outputs of the plurality of transmission outputs correspondingly drive at least two pumps of the plurality of pumps in different manners. (Item 5) 2. The surgical pump assembly of claim 1, wherein the at least two different transmission outputs of the plurality of transmission outputs are at different rotational speeds. (Item 6) The surgical pump assembly of any of the preceding items, wherein the transmission assembly includes a plurality of transmission sections, each transmission section of the plurality of transmission sections being connected between the motor and one of the plurality of pumps. (Item 7) 2. A surgical pump assembly as described in any preceding claim, wherein at least two of the plurality of transmissions define different input-to-output ratios. (Item 8) 2. A surgical pump assembly as described in any of the preceding claims, wherein at least one transmission section of the plurality of transmission sections is controllable to vary the input to output ratio. (Item 9) A surgical pump assembly as described in any of the preceding items, wherein at least two of the plurality of transmissions are independently controllable to independently vary the input to output ratio. (Item 10) 2. The surgical pump assembly of claim 1, further comprising a controller disposed in communication with the transmission assembly, the controller configured to instruct the transmission assembly to independently vary at least one transmission power of the plurality of transmission powers. (Item 11) 1. A surgical generator comprising: at least one energy module configured to generate an energy delivery signal; at least one energy port configured to connect to a surgical instrument to deliver the energy delivery signal; 1. A surgical pump assembly comprising: a motor configured to provide a motor output; a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs; a plurality of pumps, each pump of the plurality of pumps configured to receive one of the plurality of transmission outputs; and a surgical pump assembly including a plurality of pump output ports, each pump output port of the plurality of pump output ports being coupled to one of the plurality of pumps. (Item 12) 13. The surgical generator of claim 12, wherein at least one transmit output of the plurality of transmit outputs is variable independently of other transmit outputs of the plurality of transmit outputs. (Item 13) 2. The surgical generator of claim 1, wherein at least two of the plurality of transmit outputs are different from one another. (Item 14) 2. The surgical generator of claim 1, wherein the at least two different transmission outputs of the plurality of transmission outputs correspondingly drive at least two pumps of the plurality of pumps in different manners. (Item 15) 2. The surgical generator of claim 1, wherein the at least two different transmit outputs of the plurality of transmit outputs are at different rotational speeds. (Item 16) The surgical generator of any of the preceding items, wherein the transmission assembly includes a plurality of transmission sections, each transmission section of the plurality of transmission sections being coupled between the motor and one of the plurality of pumps. (Item 17) 2. The surgical generator of claim 1, wherein at least two of the plurality of transmission sections define different input to output ratios. (Item 18) 2. The surgical generator of claim 1, wherein at least one of the plurality of transmission sections is controllable to vary the input to output ratio. (Item 19) 2. The surgical generator of claim 1, wherein at least two of the plurality of transmission sections are independently controllable to independently vary the input to output ratio. (Item 20) 13. The surgical generator of claim 1, further comprising a controller disposed in communication with the transmission assembly, the controller configured to instruct the transmission assembly to independently vary at least one transmission power of the plurality of transmission powers. (Summary) The surgical pump assembly includes a motor configured to provide a motor output, a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs, and a plurality of pumps. Each pump of the plurality of pumps is configured to receive one of the plurality of transmission outputs. The surgical generator includes at least one energy module configured to generate an energy delivery signal, at least one energy port configured to connect to the surgical instrument and deliver the energy delivery signal thereto, and the surgical pump assembly. [Brief description of the drawings]

[0016] The above and other aspects and features of the present disclosure will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawing figures, in which like reference numbers identify similar or identical elements.

[0017] [Figure 1] FIG. 1 is a side view of a surgical system provided in accordance with the present disclosure including a surgical generator and first and second surgical instruments selectively connectable to the surgical generator. [Diagram 2]2 is a block diagram of a surgical pump provided in accordance with the present disclosure and configured for use with the surgical generator of FIG. 1, another surgical component, or as a stand-alone device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] 1, a surgical system provided in accordance with aspects of the present disclosure includes a first surgical instrument 100, a second surgical instrument 200, and a surgical generator 300, generally identified and designated by reference numeral 10. The first surgical instrument 100 is shown and described herein as an ultrasonic surgical instrument incorporating a blade cooling system, and the second surgical instrument 200 is shown and described herein as an electrosurgical pencil incorporating a smoke evacuation system. However, the surgical instruments 100, 200 are merely exemplary and may be configured in any suitable manner, and further, additional or alternative surgical instruments, consoles, assemblies, and / or systems may be utilized with the surgical generator 300 as part of the surgical system 10.

[0019] The surgical instrument 100 includes a handle assembly 110, a shaft assembly 120 extending distally from the handle assembly 110, an end effector assembly 130 supported at a distal end portion of the shaft assembly 120, and a plug assembly 140 operably coupled to the handle assembly 110 and extending therefrom for connection to a surgical generator 300.

[0020] The surgical instrument 100 further includes an actuation button 150 attached to the handle assembly 110, a clamp trigger 160 operably coupled to the handle assembly 110, and an ultrasonic transducer 170 supported within the handle assembly 110. The shaft assembly 120 includes a support sleeve that supports the jaws 134 of the end effector assembly 130 at a distal end thereof, and a drive sleeve operably coupled to the jaws 134. A drive assembly (not shown) couples a proximal portion of the drive sleeve to the clamp trigger 160 such that the clamp trigger 160 is selectively actuable to move the drive sleeve to pivot the jaws 134 from a spaced position to an approximated position relative to the blade 132 of the end effector assembly 130 to clamp tissue between the jaws 134 and the blade 132.

[0021] A waveguide 180 is coupled at its proximal end portion to the ultrasonic transducer 170 and extends distally through the shaft assembly 120 to define the blade 132 of the end effector assembly 130. Ultrasonic motion generated by the ultrasonic transducer 170 is transmitted along the waveguide 180 to the blade 132 for treating tissue clamped between the blade 132 and the jaws 134 or positioned adjacent to the blade 132.

[0022] The surgical instrument 100 further includes a blade cooling system including one or more fluid lines 102 coupled to one or more lumens (not explicitly shown) extending through the waveguide 180 and / or the blade 132 to circulate a cooling fluid to cool the blade 132. The blade cooling system may further include a local fluid reservoir, for example, in or on the handle assembly 110, or a remote fluid reservoir (not shown). As an alternative to blade cooling, the fluid line(s) 102 may be utilized for aspiration and / or irrigation in a configuration in which the surgical instrument is an ultrasonic aspirator / irrigator.

[0023] The plug assembly 140 of the surgical instrument 100 includes a cable 142, an ultrasonic plug 144, and a pump plug 146. The ultrasonic plug 144 is configured to connect with an ultrasonic plug port 330 of the surgical generator 300, while the pump plug 146 is configured to connect with one of the pump plug ports 350 of the surgical generator 300. Alternatively, the plug assembly 140 may include a common plug (not shown) configured to operate as both the ultrasonic plug 144 and the pump plug 146. An electrical lead electrically coupled to the ultrasonic plug 144 extends through the cable 142 and into the handle assembly 110 for electrical connection to the ultrasonic transducer 170 and / or the activation button 150 to enable selective delivery of an ultrasonic drive signal from the surgical generator 300 to the ultrasonic transducer 170 upon actuation of the activation button 150. One or more fluid lines (may be multiple) 102 are fluidly coupled to the pump plug 146 and extend through the cable 142 into the handle assembly 110 to connect to the blade cooling system of the surgical instrument 100 to enable pumping of cooling fluid through the pump assembly 600 of the surgical generator 300.

[0024] With continued reference to FIG. 1, the surgical instrument 200 includes a body 210 including one or more controls 212, 214 disposed thereon, an electrode probe 220 extending distally from the body 210, a smoke exhaust tube 230 extending distally from the body 210 and surrounding the electrode probe 220 along a portion of its length, and first and second cables 240, 250, respectively.

[0025] The electrode probe 220 may be configured to deliver monopolar radio frequency (RF) energy to tissue, although other suitable energies are contemplated, e.g., bipolar RF, microwave, heat, ultrasound, etc. The electrode probe 220 may define a sharp, e.g., needle-like distal tip, a blunt distal tip, and / or any other suitable configuration, e.g., straight, curved, angled, hook-shaped, etc. One or more controls 212, 214 control the activation, mode, and / or intensity of energy delivery to the electrode probe 220.

[0026] As described above, the smoke evacuation tube 230 surrounds the electrode probe 220 along a portion of its length and defines an open distal end 232 and / or an opening 234 therethrough to facilitate the drawing of fluid, e.g., smoke, therethrough.

[0027] First cable 240 includes an electrosurgical plug 242 and houses electrical leads that are electrically coupled to electrosurgical plug 242 and extend through first cable 240 into body 210 for electrically connecting to electrode probe 220 and / or controls 212, 214. Electrosurgical plug 242 is configured to connect to an electrosurgical plug port 340 of surgical generator 300 to enable selective delivery of electrosurgical energy from the generator 300 to the electrode probe 220.

[0028] The second cable 250 includes a pump plug 252 and defines a suction tube 254 that is fluidly coupled to the smoke exhaust tube 230. The pump plug 252 is configured to connect with one of the pump plug ports 350 of the surgical generator 300 to enable the pump assembly 600 of the surgical generator 300 to apply suction through the suction tube 254 and the smoke exhaust tube 230 to facilitate evacuation of fluids, e.g., smoke, from the surgical site. An external collection reservoir (not shown) may be coupled to the smoke exhaust tube 230 and / or the suction tube 254 to collect smoke and / or other fluids evacuated from the surgical site. Alternatively, the first and second cables 240, 250 may be combined and extend to a common plug (not shown) or may be joined at a common plug configured to operate as both the electrosurgical plug 242 and the pump plug 252.

[0029] 1 , the surgical generator 300 includes a display 310, a number of user interface features 320, e.g., buttons, touch screens, switches, etc., one or more energy ports, e.g., an ultrasonic plug port 330, and a monopolar electrosurgical plug port 340. Other suitable energy ports are also contemplated, e.g., bipolar plug ports, advanced energy plug ports, microwave plug ports, etc. The surgical generator 300 further includes a number of pump plug ports 350.

[0030] The surgical generator 300 further includes an ultrasonic generator module 400 configured to generate an ultrasonic drive signal for output through the ultrasonic plug port 330, and a monopolar electrosurgical module 500 configured to generate a monopolar RF signal for output through the monopolar electrosurgical plug port 340. Of course, if additional or alternative energy is provided, additional or different modules would be provided as well. The surgical generator 300 additionally includes a pump assembly 600 including a plurality of pumps 654 (e.g., first, second... and "n" pumps 654) configured to provide pump outputs through a plurality of pump plug ports 350 (e.g., first, second... and "n" pump plug ports 350). The pump assembly 600 is described in more detail below. Additionally, in embodiments, one or more common plug ports may be provided that are configured as both a pump plug port 350 and an energy plug port (e.g., an ultrasound plug port 330, a monopolar electrosurgical plug port 340, a universal smart plug port configured to receive and provide an appropriate output to any suitable energy plug, or any other suitable energy plug port).

[0031] With regard to control of the surgical generator 300, one or more general purpose controllers (not explicitly shown) may be provided for controlling the various modules, components, and features of the surgical generator 300. Additionally or alternatively, one or more dedicated controllers (not explicitly shown) may be provided for individually controlling one or more of the various modules, components, and features of the surgical generator 300.

[0032] 2, the pump assembly 600 may be incorporated within the surgical generator 300 (FIG. 1), as detailed above, or may be incorporated into another surgical component, e.g., an instrument, console, system, etc., or may be configured as a stand-alone device. The pump assembly 600 generally includes a motor 610 having a motor output 612, a plurality of transmissions 622 (e.g., first, second... and "n" transmissions 622), each of which includes a transmission assembly 620 coupled to the motor output 612, a plurality of pumps 630 (e.g., first, second... and "n" pumps 630) coupled to the respective transmissions 620, a plurality of pump outputs 640 (e.g., first, second... and "n" pump outputs 640) coupled between the respective pumps 630 and the pump plug port 350, and a controller 650.

[0033] The motor 610 may be any suitable motor configured to provide any suitable motor output 612, e.g., a rotational output, a reciprocating output, a rotational and reciprocating output, etc., to the transmission assembly 620. The motor 610 is more specifically connected to each pump 630 via a separate transmission section 622 of the transmission assembly 620. The transmission assembly 620 is configured to selectively amplify, attenuate, maintain, and / or transform the motor output 612, as needed, into a respective transmission output 624 provided to the pump 630. In some cases, the transmission assembly 620 may not transform the motor output 612, and thus one or more transmission outputs 624 may be equal to the motor output 612. Additionally or alternatively, in some cases, the transmission assembly 620 may not provide a transmission output 624 from one or more transmission sections 622 regardless of the received motor output 612.

[0034] As described in more detail below, the transmission assembly 620 allows a single motor, motor 610, to independently and selectively provide different types and / or levels of power to the pumps 630 such that each pump 630 may be operated in a desired manner independent of the operation of the other pumps 630a. Additionally, this configuration also allows a single motor, motor 610, to drive different types of pumps 630, and still further allows the motor 610 to provide a single output (rather than a variable output), although variable output motor configurations are also contemplated. One or more pumps 630 may be different from the other pumps 630. Alternatively, all of the pumps 630 may be of the same type. The pumps 630, whether the same or different, may include any suitable pump type, such as, for example, centrifugal pumps, peristaltic pumps, diaphragm pumps, gear pumps, lobe pumps, roller pumps, piston pumps, screw pumps, vacuum and / or pressure pumps, hydraulic pumps, etc.

[0035] 2, as noted above, transmission assembly 620 is configured to receive motor output 612 from motor 610 and selectively provide transmission output 624, which may be the same or a different type and / or level of output, to pump 630. Motor 610 is described below as providing rotary motor output 612 to transmission assembly 620, although other suitable outputs are contemplated.

[0036] The transmission assembly 620, in an embodiment, includes a common input 626 configured to receive the rotary motor output 612 from the motor 610. The common input 626 may be coupled to the motor output 612, for example, by gearing, pulleys, cables, or the like, or any other suitable manner, and may be coupled therein to provide a 1:1 input-to-output ratio, an attenuated output ratio, or an amplified output ratio. The common input 626 is then coupled to a plurality of transmission inputs 628, for example, by gearing, pulleys, cables, or the like, to provide the rotary motor output 612 (whether amplified, attenuated, or maintained) to each of the transmission sections 622 via the transmission inputs 628. The coupling between the common input 626 and each transmission input 628 may provide similar or different output ratios to the transmission sections 622, for example, a 1:1 input-to-output ratio, an attenuated output ratio, or an amplified output ratio.

[0037] Each transmission 622 is selectively connectable to a transmission output 624 for output to receive a corresponding transmission input 628 and drive a corresponding pump 630 according to the transmission output 624 provided thereto. For example, with respect to rotational output, the rotational speed of the transmission output 624 can be set by the transmission 622 regardless of the motor output 612 to drive the pump 630 in a desired manner, e.g., with the same or different flow rate, pressure, flow velocity, etc.

[0038] Transmission section 622 may be similar or different and may include any suitable transmission configuration(s) that allows for selectively varying the transmission output relative to the transmission input. Suitable transmission configurations include a stepless transmission, a gearbox transmission, a dual clutch transmission, a magnetic direct drive transmission, and combinations thereof. Regardless of the particular configuration, transmission section 622 may also include a release clutch (or other suitable release mechanism) that allows for selectively decoupling the input to transmission section 622 from the output of transmission section 622 so as to inhibit the output regardless of the input.

[0039] Each transmission section 622 is configured to selectively amplify, attenuate, or maintain a corresponding transmission input 628 provided thereto for output to a respective pump 630 via a corresponding transmission output 624. The transmission section 622 may additionally be configured to convert the transmission input 628 provided thereto into a different type of output, for example, converting a rotary input to a reciprocating output, or vice versa. Additionally or alternatively, the transmission section 622 may be configured to selectively switch the direction of the rotational transmission input 628 compared to the direction of the rotary transmission output 624, for example, from clockwise to counterclockwise, or vice versa.

[0040] 2, the one or more transmissions 622 may be fixed, for example, to provide the same input-to-output ratio, and / or the one or more transmissions 622 may be variable, for example, to allow for continuous or stepped adjustment of the input-to-output ratio depending on the needs of the pump 630 or an instrument connected thereto. In this manner, a single motor output 612 from the motor 610 may be utilized to drive pumps 630 in similar or different ways and / or at similar or different levels to meet the needs of a variety of different instruments, systems, consoles, etc. connected to the pump assembly 600. Stopping one or more pumps 630 and / or reversing the direction of one or more pumps 630 may also be easily accomplished without changing the motor output 612.

[0041] The controller 650 includes a processor 652 and a memory 654 that stores instructions executed by the process. The controller 650 may further include an input / output (I / O) 656 and a communication bus 658. The I / O 656 enables communication between the pump assembly 600 and external modules, components, and / or devices. The communication bus 658 enables communication between the controller 650 and the transmission 622 and the pump 630, for example. In this manner, instructions may be provided as input to the generator 300, for example, and / or received by the controller 650 via the I / O 656 from an instrument or other device connected to one of the pump plug ports 350 (via RFID communication or other suitable detection) based on a particular detected device connected to one of the pump plug ports 450, to enable the controller 650 to control the configuration of the transmission(s) 622 to provide an appropriate output to the corresponding pump(s) 630, for example, via the communication bus 658. The controller 650 may additionally or alternatively receive feedback from the pump 630 via a communication bus 658 and, based thereon, control the configuration of the transmission section(s) 622 to maintain appropriate parameters as part of a feedback-based control loop.

[0042] Although several embodiments of the present disclosure have been described in detail above and shown in the drawings, it is intended that the present disclosure is not limited to these embodiments, as the present disclosure is as broad as the art will permit, and the specification is intended to be read in the same manner. Therefore, the above description and the accompanying drawings should not be interpreted as limiting, but merely as illustrations of certain embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended hereto.

Claims

1. 1. A surgical pump assembly comprising: a motor configured to provide a motor output; a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs; a plurality of pumps, each pump of the plurality of pumps configured to receive one of the plurality of transmitted outputs, each pump of the plurality of pumps configured for releasable connection to a surgical instrument; a controller configured to detect a type of the surgical instrument releasably connected to each pump of the plurality of pumps, the controller configured to control each transmission output of the plurality of transmission outputs, controlling each transmission output of the plurality of transmission outputs based at least in part on the detected type of the surgical instrument releasably connected to a pump corresponding to the transmission output; A surgical pump assembly comprising:

2. The surgical pump assembly of claim 1 , wherein at least one transmission power of the plurality of transmission powers is variable independently of other transmission powers of the plurality of transmission powers.

3. The surgical pump assembly of claim 1 , wherein at least two of the plurality of transmission outputs are different from one another.

4. The surgical pump assembly of claim 3 , wherein the at least two different transmission outputs of the plurality of transmission outputs drive corresponding at least two pumps of the plurality of pumps at a plurality of different flow rates, flow pressures, and flow velocities.

5. The surgical pump assembly of claim 3 , wherein the at least two different transmission outputs of the plurality of transmission outputs are a plurality of different rotational speeds.

6. The surgical pump assembly of claim 1 , wherein the transmission assembly includes a plurality of transmission sections, each transmission section of the plurality of transmission sections being coupled between the motor and one of the plurality of pumps.

7. The surgical pump assembly of claim 6 , wherein at least two of the plurality of transmissions define a plurality of different input to output ratios.

8. The surgical pump assembly of claim 6, wherein at least one transmission of the plurality of transmissions is controllable to vary an input to output ratio of the at least one transmission of the plurality of transmissions.

9. 7. The surgical pump assembly of claim 6, wherein at least two of the plurality of transmissions are independently controllable to independently vary an input to output ratio of the at least two of the plurality of transmissions.

10. A surgical pump assembly as described in claim 1, wherein the controller is arranged to communicate with the transmission assembly, and the controller is configured to instruct the transmission assembly to independently vary at least one transmission output of the plurality of transmission outputs.

11. 1. A surgical generator comprising: at least one energy module configured to generate an energy delivery signal; at least one energy port configured to connect to a surgical instrument to deliver the energy delivery signal to the surgical instrument; 1. A surgical pump assembly comprising: a motor configured to provide a motor output; a transmission assembly configured to receive the motor output and provide a plurality of transmission outputs; a plurality of pumps, each pump of the plurality of pumps configured to receive one of the plurality of transmission outputs; a plurality of pump output ports, each of the plurality of pump output ports coupled to one of the plurality of pumps, each of the plurality of pump output ports configured to connect to the surgical instrument, thereby connecting the surgical instrument to a pump; a controller configured to detect a type of the surgical instrument releasably connected to each pump output port of the plurality of pump output ports, the controller configured to control each transmission output of the plurality of transmission outputs, controlling each transmission output of the plurality of transmission outputs based at least in part on the detected type of the surgical instrument releasably connected to a pump output port coupled to a pump corresponding to the transmission output; a surgical pump assembly including: A surgical generator comprising:

12. The surgical generator of claim 11 , wherein at least one transmit power of the plurality of transmit powers is variable independently of other transmit powers of the plurality of transmit powers.

13. The surgical generator of claim 11 , wherein at least two transmit outputs of the plurality of transmit outputs are different from one another.

14. 14. The surgical generator of claim 13, wherein the at least two different transmission outputs of the plurality of transmission outputs drive corresponding at least two pumps of the plurality of pumps at a plurality of different flow rates, pressures, or velocities.

15. The surgical generator of claim 13 , wherein the at least two different transmission outputs of the plurality of transmission outputs are at a plurality of different rotational speeds.

16. 12. The surgical generator of claim 11, wherein the transmission assembly includes a plurality of transmissions, each transmission of the plurality of transmissions being coupled between the motor and one of the plurality of pumps.

17. The surgical generator of claim 16, wherein at least two of the plurality of transmissions define a plurality of different input to output ratios.

18. 17. The surgical generator of claim 16, wherein at least one transmission of the plurality of transmissions is controllable to vary an input to output ratio of the at least one transmission of the plurality of transmissions.

19. 17. The surgical generator of claim 16, wherein at least two of the plurality of transmissions are independently controllable to independently vary an input to output ratio of the at least two of the plurality of transmissions.

20. A surgical generator as described in claim 11, wherein the controller is arranged to communicate with the transmission assembly, and the controller is configured to instruct the transmission assembly to independently vary at least one transmission output of the plurality of transmission outputs.

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