Console architecture for microwave ablation unit

By designing a portable microwave ablation console, using multiple microwave generators and coolant pumps, combined with a cooling system of radiator and fans, the existing system's bulkiness, complex operation and insufficient temperature management are solved, achieving higher operation ease, durability and system reliability.

CN119700283APending Publication Date: 2025-03-28VARIAN MEDICAL SYSTEMS INC
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Patent Information

Application Number
CN202411352486.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-28
Filing Date
2024-09-26
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing microwave ablation systems are large, bulky, complex in operation, and have shortcomings in managing the temperature generated by the microwave ablation system components, resulting in premature failure of components or inaccurate functions.

Method used

An improved microwave ablation console is designed with a portable housing structure that includes multiple microwave generators and coolant pumps, a cooling system combining radiator and fan to ensure efficient management of thermal energy and simplify operation.

Benefits of technology

A smaller and more portable microwave ablation console is realized, which improves operation ease and durability, reduces the difficulty of component failure and temperature management, and improves system reliability and performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a console architecture for a microwave ablation unit. An apparatus for generating microwave signals includes a housing having a plurality of walls defining an interior volume, an inlet opening, and an outlet opening. The apparatus further includes a power source positioned in the interior volume, and further includes a first microwave generator and a second microwave generator each operably coupled to the power source and each positioned in the interior volume, spaced apart from the power source. The apparatus also includes a heat sink positioned in the interior volume, the heat sink contacting the power source, the first microwave generator, and the second microwave generator. The apparatus also includes a fan positioned in the interior volume at the first end of the heat sink. The fan is configured to draw a flow of air from the inlet opening into the interior volume and move the flow of air through the heat sink.
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Description

Technical Field

[0001] The present disclosure relates to console architecture for a microwave ablation console. More particularly, the present disclosure relates to structures and features of a microwave ablation console that may include cooling structures for managing thermal energy generated by components of the microwave ablation console. Background Art

[0002] This section provides background information related to the present disclosure which is not necessarily prior art.

[0003] Ablation devices and systems are used to perform ablation treatments in which a probe is inserted at or near target tissue in a patient's body. The target tissue is typically abnormal tissue, such as a tumor or other growth. The ablation treatment is performed to destroy the target tissue, thereby reducing the likelihood of further growth or spread of the target tissue in the patient's body. One type of ablation is thermal ablation. In thermal ablation, a probe positioned at or near the target tissue raises the temperature of the target tissue (usually in a localized area near the probe) to a temperature at which the target tissue is destroyed.

[0004] Thermal ablation can be induced by transmitting microwaves at or near the target tissue. A microwave generator can be used, which sends microwave signals to an antenna in the ablation probe. The antenna can transmit microwave energy into the surrounding tissue, thereby raising the temperature of such tissue to a temperature sufficient to cause thermal ablation.

[0005] Existing microwave ablation systems and devices suffer from various disadvantages. For example, existing ablation systems may be large, cumbersome, and difficult to use. The complexity and structure of existing systems may require extensive training and may be highly dependent on the operator's experience level. Existing ablation devices may also be poor at managing the temperatures that may be generated by the various elements of the microwave ablation system during operation. Elevated temperatures may cause premature failure of components or may not permit otherwise desired functionality. Therefore, there is a need for improved ablation devices and systems that can be easily operated and reduce the likelihood of premature failure and / or the deleterious effects of elevated temperatures. Summary of the invention

[0006] This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

[0007] The present disclosure provides various aspects of a microwave ablation console. The console can be configured to provide improved durability and reliability compared to existing microwave ablation consoles. In addition, the console of the present disclosure can be portable and can be easily used in various locations in a treatment environment.

[0008] In some embodiments of the present disclosure, a device for generating a microwave signal is provided. The device for generating a microwave signal may include a housing having a plurality of walls, an inlet opening, and an outlet opening defining an internal volume. The device may also include a power supply positioned in the internal volume, and include a first microwave generator and a second microwave generator, each of the first microwave generator and the second microwave generator being operably coupled to the power supply and each being positioned in the internal volume, spaced apart from the power supply. The device may also include a heat sink positioned in the internal volume and contacting the power supply, the first microwave generator, and the second microwave generator. The device may also include a fan positioned in the internal volume, at a first end of the heat sink, wherein the fan is configured to draw air flow from the inlet opening into the internal volume and move the air flow through the heat sink.

[0009] In one aspect, the fan may be offset from an inlet duct coupled to the inlet opening.

[0010] In another aspect, the first generator and the second generator may be positioned on opposite sides of the heat sink.

[0011] In another aspect, a heat sink can include a plurality of walls defining a cavity and a plurality of fins positioned in the cavity.

[0012] In another aspect, the apparatus may include an outlet duct coupled to a second end of the radiator downstream of the first end, wherein a heated air flow from the radiator is moved out of the outlet opening through the inlet duct.

[0013] In another aspect, the second end may be located opposite the first end.

[0014] In another aspect, the apparatus may further include a plurality of coolant pumps positioned within the interior volume, spaced apart from the radiator.

[0015] In another aspect, at least a portion of the air flow entering the interior volume through the inlet opening contacts interior components in the interior volume prior to entering the heat sink.

[0016] In another aspect, the apparatus may include an inlet duct coupled to the inlet opening. The inlet duct may direct incoming air upward into the interior volume.

[0017] In another aspect, the housing may include a first shell portion and a second shell portion. The first shell portion may have a lip positioned around an outer periphery, the lip being configured to overlap an outer periphery of the second shell portion.

[0018] In another aspect, the housing may include a first handle protruding inwardly from an outer surface of the housing, and the inlet opening may be positioned in the first handle.

[0019] In another aspect, the housing may include a second handle protruding inwardly from an outer surface of the housing, and the outlet opening may be positioned in the second handle.

[0020] In another aspect, the first handle and the second handle can be positioned on opposite sides of the housing.

[0021] In another aspect, the housing may include a hinge configured to support the display.

[0022] In another aspect, the hinge is configured to allow angular and rotational movement of the display relative to the housing.

[0023] In another aspect, the apparatus may include a bracket configured to support the coolant container in a predetermined position relative to the housing.

[0024] In another aspect, both the first microwave generator and the second microwave generator may be powered by a power source.

[0025] In another aspect, the first microwave generator and the second microwave generator may be independently operable to deliver the first microwave signal and the second microwave signal, respectively.

[0026] In another aspect, the first microwave signal and the second microwave signal are different.

[0027] In another aspect, the power supply includes a single power input.

[0028] In some embodiments of the present disclosure, a housing for enclosing a microwave ablation unit is provided. The housing may include a first housing portion, a second housing portion, the second housing portion including a flange for mating with the first housing portion and a contoured upper surface for directing fluid toward one or more sides. The housing may also include a face portion configured to mate with a front opening defined by the first housing portion and the second housing portion.

[0029] In one aspect, the housing can include a back plate configured to mate with a back opening defined by the first housing portion and the second housing portion.

[0030] In another aspect, the first housing portion may include an inlet opening and an outlet opening. The inlet opening may be configured to receive an incoming air flow, and the outlet opening may be configured to emit an outgoing air flow.

[0031] In another aspect, the inlet opening is positioned in an inline handle formation.

[0032] In another aspect, the face portion can include a first microwave port and a second microwave port, each configured to receive a connector of a microwave ablation probe head assembly.

[0033] In another aspect, the face portion can include a first coolant port and a second coolant port. The first coolant port and the second coolant port can each be configured to receive a coolant cartridge of the microwave ablation probe head assembly.

[0034] In another aspect, the contoured upper surface is configured to direct fluid away from the face portion.

[0035] In another aspect, the flange is configured to overlap with a complementary flange of the first housing portion.

[0036] In another aspect, the first housing portion, the second housing portion, and the face portion may define an interior volume configured to hold a microwave generator, a power source, a heat sink, and a coolant pump.

[0037] In another aspect, the microwave generator is a first microwave generator, the coolant pump is a first coolant pump, and the interior volume may be configured to hold a second microwave generator and a second coolant pump.

[0038] In some embodiments of the present disclosure, a cooling structure for managing thermal energy in a microwave ablation console is provided. The cooling structure may include a heat sink formed by a first wall, a second wall, a third wall, and a fourth wall, the first wall including one or more first connection points for holding a first microwave generator, the second wall including one or more second connection points for holding a second microwave generator, and the third wall including one or more third connection points for holding a power source, wherein the first wall, the second wall, the third wall, and the fourth wall define a chamber. The cooling structure may also include an inlet manifold for directing air into the chamber and an outlet manifold for directing air out of the chamber, and a fan connected to the inlet manifold.

[0039] In one aspect, the first wall and the second wall may be positioned on opposite sides of the heat sink.

[0040] In another aspect, the heat sink may include a plurality of fins positioned within the chamber.

[0041] In another aspect, the first wall, the second wall, the third wall, and the fourth wall may be connected to form a rectangular shape.

[0042] Further areas of applicability will become apparent from the description provided herein.The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] For illustrative purposes, the drawings described herein are only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0044] Figure 1 is an isometric view of an example microwave ablation system according to some embodiments of the present disclosure.

[0045] Figure 2 is an isometric view of an example microwave ablation console that may be Figure 1 Part of a microwave ablation system.

[0046] Figure 3 yes Figure 2 Another isometric view of an example microwave ablation console.

[0047] Figure 4 yes Figure 3 Bottom view of the microwave ablation console.

[0048] Figure 5 yes Figure 3 Left side bottom view of the microwave ablation console.

[0049] Figure 6 yes Figure 3 Another isometric view of an example microwave ablation console in which the housing is shown as transparent to facilitate viewing of the internal components.

[0050] Figure 7 yes Figure 6 A rear isometric view of the console, with the housing also shown as being transparent.

[0051] Figure 8 yes Figure 6 A bottom view of the console, where the housing is shown as being transparent.

[0052] Fig. 9 yes Figure 6 A front view of the console, with the housing shown as transparent.

[0053] Fig.10 yes Figure 6 A top view of the console showing the upper housing portion removed to show the internal components.

[0054] Fig.11 yes Fig.10 A magnified view of the console showing example inlet ducting and fans.

[0055] Fig.12 yes Fig.10 Another enlarged view of the console of FIG. 1 , showing example inlet ducting, fans, transition pieces, and radiators.

[0056] Fig.13 is another enlarged view showing a top view of the inlet duct, fan, transition piece, and radiator.

[0057] Fig.14 is another enlarged view showing the inlet duct, fan, transition piece, and radiator.

[0058] Fig.15 is an enlarged view showing an example outlet duct and radiator.

[0059] Fig.16 It is shown Fig.15 A magnified view of the outlet pipe and top view of the radiator.

[0060] Fig.17 is an isometric view showing another example housing including another example heat sink according to some embodiments of the present disclosure.

[0061] Fig.18 yes Fig.17 Rear isometric view of an example housing and heat sink.

[0062] Fig.19 yes Fig.17 Side view of the housing and heat sink.

[0063] Fig. 20 yes Fig.17 Front view of the housing and radiator.

[0064] Fig.21 yes Fig.17 An isometric view of an example heat sink in which the walls of the heat sink are shown as transparent to show the fins in the interior chamber.

[0065] Corresponding reference numerals indicate corresponding parts throughout the several views of the drawings. DETAILED DESCRIPTION

[0066] Example embodiments will now be described more fully with reference to the accompanying drawings. For the purpose of the following description, it should be understood that the embodiments described below can take alternative variations and embodiments. It should also be understood that the specific products, components and / or processes described herein are exemplary and should not be considered restrictive. In the specification, relative terms such as "lower", "upper", "horizontal", "vertical", "above", "below", "up", "down", "top" and "bottom" and their derivatives (e.g., "horizontally", "downwardly", "upwardly", etc.) should be interpreted as referring to the orientation as described subsequently or as shown in the accompanying drawings under discussion. These relative terms are for ease of description, and do not require the device to be constructed or operated in a specific orientation. Terms such as "connection" and "interconnection" about attachment, coupling, etc. refer to the relationship in which the structures are fixed or attached to each other directly or indirectly through an intermediate structure, and both removable or rigid attachments or relationships, unless otherwise explicitly described.

[0067] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Terms such as "first", "second" and other numerical terms do not imply order or sequence when used in this article, unless clearly indicated by context. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section, without departing from the teaching of the exemplary embodiment.

[0068] In the present disclosure, the singular forms "one", "an" and "the" include plural references, and references to specific numerical values ​​include at least the specific value unless the context clearly indicates otherwise. When a value is expressed as an approximation by using the antecedent "about", it will be understood that the specific value forms another embodiment. As used herein, "about X" (wherein X is a numerical value) preferably refers to ±10% of the recorded value, including the end value. For example, the phrase "about 8" preferably refers to a value of 7.2 to 8.8, including 7.2 and 8.8. When present, all ranges are inclusive and combinable. For example, when recording the range of "1 to 5", the recorded range should be interpreted as including the range "1 to 4", "1 to 3", "1-2", "1-2 & 4-5", "1-3 & 5", "2-5" etc. In addition, when a list of alternatives is provided affirmatively, such a list can be interpreted as meaning that any alternative in the alternative can be excluded, such as by a negative limitation in a claim. For example, when a range of "1 to 5" is recited, the recited range may be interpreted as including any of 1, 2, 3, 4, or 5 that are negatively excluded; thus, the recited "1 to 5" may be interpreted as "1 and 3-5, but not 2," or simply "wherein 2 is not included." It is intended that any component, element, attribute, or step that is affirmatively recited herein may be explicitly excluded in a claim, regardless of whether such component, element, attribute, or step is listed as an alternative or whether it is recited in isolation.

[0069] In some embodiments of the present disclosure, an improved microwave ablation console is provided. The improved microwave ablation console can overcome various shortcomings of existing consoles and also improve performance, versatility, and durability compared to known systems and methods. In some embodiments, the microwave ablation console of the present disclosure may include an improved housing, which may include features, shapes, and structures that allow improved functionality. The housing of the present disclosure can allow for portability of the microwave ablation console. The housing can also reduce the likelihood of damage due to spills that may occur in the treatment environment. In addition, the housing can be configured to keep various components in desired positions and allow thermal management to be performed to reduce the operating temperature of various internal components.

[0070] The microwave ablation console of the present disclosure may also include improved features, which may include an adjustable display screen and various ports and / or connectors to allow simplified setup and operation compared to the setup and operation of existing systems. The microwave ablation console of the present disclosure may require less time to set up and operate compared to existing systems. In addition, the simplified and intuitive structure may reduce the possibility of errors that may occur during setup and operation. These improvements may lead to improved patient outcomes and a reduction in treatment duration.

[0071] The microwave ablation console of the present disclosure may also include multiple microwave generators in a single integrated unit. Such functionality may allow multiple independent ablation probes to be used during treatment and to be controlled using a single console. This functionality coupled with the portability of the console is an improvement over existing systems, which are not portable and may not allow independent microwave generation in a small, compact unit. In addition to the multiple microwave generators, the console of the present disclosure may also include multiple coolant pumps. The multiple coolant pumps may be configured so that coolant is moved through the cooling lines to cool the cables of the ablation probe assembly. This is also an improvement over existing consoles and systems, which typically require a separate coolant pump assembly that is not integrated into the portable microwave ablation console.

[0072] Existing microwave ablation systems typically do not include multiple microwave generators because it can be difficult to manage the thermal energy generated by the microwave generators during operation. If the heat is not adequately managed, the microwave generators can generate enough heat to damage the generators themselves or other components in the microwave ablation console. The microwave ablation console of the present disclosure can include an improved heat sink that can move thermal energy away from the microwave generators and associated power supplies in order to maintain a proper operating temperature for components in the console.

[0073] Reference now Figure 1 , an example microwave ablation device 100 is shown. The microwave ablation device 100 may include a portable base unit or console 102, a cart 104, and an ablation probe assembly 106. The console 102 may be positioned on the cart 104. As will be further described, the console 102 may include a microwave generator and a coolant pump. In some embodiments, the ablation device 100 may have the structure and function described in U.S. Patent Application No. 18 / 477,388 of Varian Medical Systems, Inc., entitled "PORTABLEABLATION APPARATUS AND RELATED METHODS OF USE", filed on the same date as the present application. The contents of the application are incorporated herein by reference in their entirety. In various embodiments, the ablation device 100 may be operated to perform an ablation treatment by sending a microwave signal to an antenna in the ablation probe 110 via a cable 116. The antenna may deliver microwaves to a target tissue at or near the ablation probe 110. The microwaves may induce an elevated temperature at the target tissue to destroy the target tissue.

[0074] During an ablation treatment, the ablation device 100 may also use a coolant flow generator to deliver coolant from a coolant container 112 to the probe 110. A coolant cartridge 114 may be inserted into the front of the console 102 and engage a pump to move coolant from the coolant container 112 to the probe 110 via a cable 116. The movement of the coolant may absorb thermal energy from the cable and / or the probe 110, thereby effectively cooling portions of the probe 110 and / or the cable.

[0075] As can be seen, the console 102 and cart 104 can be easily moved in a hospital, a treatment center or other environment. The cart 104 may include a support surface such as a platform 108, which is positioned at an elevated position above the floor to allow access to the functions of the system. The platform 108 may be positioned at a height that is approximately the same as the height of the patient, for example. The patient undergoing ablation treatment may be positioned, for example, on the bed of an imaging system. The imaging system may be a CT scanner, an MRI machine, an X-ray device or other imaging equipment. In the case where the console 102 is positioned at a height that is approximately equal to the height of the bed of the imaging system, ablation treatment may be performed more easily. In addition, the console 102 may be moved to the side of the bed, so that the length of the cable 116 that may be required to deliver microwave signals and / or coolants from the base unit to the probe 110 may be reduced compared to an ablation system that is more cumbersome or may need to be located at other locations in the treatment environment.

[0076] The console 102 can be portable in that it can be lifted and moved by one user. The console 102 can be removed from the cart 104 and positioned on a table, counter, or other surface in a treatment or laboratory setting. The console 102 can include a housing 204 positioned around the interior components of the console 102. The housing 204 can include one or more walls defining an interior volume in which the interior components are located. Figure 2 As shown in FIG. 2 , the console 102 may include a first microwave port 224 , a second microwave port 226 , a first sensor port 220 , and a second sensor port 222 . The console 102 may also include a display 208 to allow input from a user and to display one or more operating parameters of the console 102 .

[0077] The first microwave port 224 and the second microwave port 226 can be similarly configured and can be electrical connectors to allow mating connectors to electrically couple the ablation probe assembly 106 to a corresponding microwave generator positioned inside the housing 204. In some examples, the first microwave port 224 can include a first mark and the second microwave port 226 can include a second mark. The first mark and the second mark can be different to allow a user to distinguish between the ports. The first mark and the second mark can include various suitable identifiers, such as colors, symbols, letters, numbers, shapes, colored lights or other identifiers. In some examples, the first mark and the second mark can include multiple identifiers from a previous identifier list. The first mark and the second mark can be used to guide the operator in the setting and use of the console 102 to ensure that the operator makes the appropriate connection. In some embodiments, the ablation probe assembly 106 can have the structure and function described in U.S. Patent Application No. 18 / 477,374 of Varian Medical Systems, Inc., entitled "MICROWAVE ABLATION PROBE ASSEMBLY AND CABLE STRUCTURE" filed on the same date as this application. The content of this application is incorporated herein by reference in its entirety.

[0078] The first microwave port 224 and the second microwave port 226 may be positioned in the front face 230 of the housing 204. This may allow a user to easily connect the ablation probe assembly 106 to the first microwave port 224 and / or the second microwave port 226. In other examples, the first microwave port 224 and the second microwave port 226 may be positioned at other locations in the housing 204, such as in a side wall or a top surface of the housing 204. Although Figure 2 The example console 102 shown in includes two microwave generators and two microwave ports, but it should be appreciated that in some examples one generator and port may be included, and in other examples more than two generators and ports may be included.

[0079] As further shown in this example, the console 102 may include a first sensor port 220 and a second sensor port 222 positioned on the front face 230. Such positioning may allow an operator to easily connect one or more sensors to the console 102. Figure 2As shown in , ablation probe assembly 106 may include sensor probe 240. In some examples, sensor probe 140 may be provided independently of ablation probe assembly 106. Sensor probe 240 may be positioned at or near target tissue in a patient during ablation treatment to monitor and / or determine one or more parameters. For example, sensor probe 240 may include one or more measurement points that may measure impedance, temperature, humidity, density or other characteristics of a patient. The measurement information may be transmitted to console 102 via sensor cable 242. Sensor cable 242 may terminate at a sensor connector that may be connected to console 102 at first sensor port 220 and / or second sensor port 222. The information may be sent to a processor, memory or other element in console 102 to be stored and / or displayed on display 208. Although example base unit 102 includes two sensor ports 220, 222, it should be appreciated that in other examples, console 102 may include less than two sensor ports or more than two sensor ports.

[0080] The console 102 may also include two or more coolant flow generators. The coolant flow generators may be configured to move coolant through the ablation probe assembly 106 to collect, transfer and / or move thermal energy and prevent elements of the ablation probe assembly 106 from being heated to undesirable levels. The coolant flow generators may each include a separate and independent pump that may be individually operated to cool the corresponding probe assembly 106. Various suitable pumps may be used, such as a peristaltic pump.

[0081] The coolant flow generator can be used by interacting with the corresponding coolant port. In the example shown, the console 102 includes a first coolant port 242 and a second coolant port 244. A complementary box 246 can be received in the first coolant port 242 and / or the second coolant port 244. In other examples, the coolant port can be positioned in other areas of the console 102, such as in the side wall of the housing 204. The coolant box 246 can include a bracket and a tube that allows a pump to interact with the coolant box 246 to move the coolant (e.g., saline) from the coolant container 210 through the probe assembly 106. The coolant container 210 can be supported on a hanger 212. The hanger 212 can be a vertical hook or rod that suspends the coolant container 210 in a position vertically located above the coolant port of the console 102.

[0082] In the example shown, the console 102 includes two coolant flow generators. In other examples, the console 102 may include one coolant flow generator. In still other examples, the console 102 may include more than two coolant flow generators. Figure 2The example shown in also shows a single ablation probe assembly 106. However, it should be appreciated that other ablation systems may include more than one ablation probe assembly 106. The number of ablation probe assemblies may correspond to the number of microwave generators, microwave ports, sensor ports, and / or coolant flow generators. In some embodiments, the coolant flow generator and coolant ports 242, 244 may have the structure and function described in U.S. Patent Application No. 18 / 477,328 of Varian Medical Systems, Inc., entitled "PUMP AND CASSETTE SYSTEM FOR USE IN MICROWAVE ABLATION", filed on the same date as the present application. The contents of the application are incorporated herein by reference in their entirety.

[0083] Figures 3 to 6 Additional aspects of an example housing 204 of the console 102 are illustrated. The housing 204 can be constructed of one or more housing portions configured to fit together to form the exterior structure of the console 102. The housing 204 can be configured to allow the console 102 to be easily moved and positioned in a desired position relative to the patient in a treatment environment. The housing 204 can also be constructed to improve durability and reduce the likelihood of damage to the console 102 and / or internal components of the console 102.

[0084] In one example, the housing 204 may include a front 230, an upper shell portion 302, a lower shell portion 304, and a back portion 306. The front 230, the upper shell portion 302, the lower shell portion 304, and the back portion 306 may be combined to define an internal volume of the console 102, and the internal components of the console 102 may be positioned in the internal volume. The lower shell portion 304 may include a flange, and the upper shell portion 302 may include a complementary flange positioned above the flange. If fluid is spilled or otherwise deposited on the console 102, the mating structure prevents the liquid from entering the internal volume. The central area 308 of the upper shell portion 302 may have a depression or be positioned vertically below the front and rear edges of the upper shell portion 302. This feature can guide the fluid away from the back portion 306 and / or the front 230. This can prevent the fluid from entering the connectors and ports that may be located on the back portion 306 and / or the front 230. In addition, the recess located in the upper housing portion 302 can be sized to permit the display 208 to be nested within the recess when the display 208 is folded into a flat position in which the display is positioned horizontally or folded in a position substantially parallel to the upper surface of the upper housing portion 302.

[0085] The housing 204 may also include one or more handles 310. In the example shown, the handles 310 may be integrally formed into the lower housing portion 304. In other examples, the handles 310 may be located elsewhere or attached using suitable fasteners or other attachments. One handle 310 may be located on one lateral side of the housing 302, and a second handle 310 may be located on the opposite lateral side of the housing 302. In such a configuration, the user may easily lift, move, and / or position the console 102 as desired.

[0086] The housing 302 may also include an inlet opening 206 and an outlet opening 402 ( Figure 4 ). In the example shown, the inlet opening 206 and the outlet opening 402 are formed in the lower housing portion 304 and are positioned on opposite lateral sides of the housing 302. The inlet opening 206 can be positioned and / or formed into the handle 310. The outlet opening 402 can be positioned and / or formed into the opposite handle 310. The inlet opening 206 can include slats, grilles, shutters, an array of holes, or other suitable structures to allow air to flow into the inlet opening 206, while it can prevent larger items from entering the interior volume of the console 102. In the example shown, the inlet opening 206 and the outlet opening 402 are each embedded in the housing 302 or facing the interior of the housing 302. Such a configuration can reduce the possibility that spills or other items can fall into the inlet opening 206 and / or the outlet opening 402.

[0087] The housing 204 may also include a hinge 214 and a base 314 that may connect the display 208 to the upper housing portion 302. The hinge 214 may allow the display 208 to rotate 360° relative to the top surface of the upper housing portion 302. The hinge 214 may also allow the display 208 to tilt up and down to change the angle of the screen relative to the top surface of the upper housing portion 302. For example, in the storage position, the display 208 may be rotated downward so that the screen of the display 208 is positioned substantially parallel to and adjacent to the top surface of the upper housing portion 302. In the deployed position, the display may be rotated upward and away from the top surface of the upper housing portion 302. The display 208 may be positioned, for example, substantially perpendicular to the top surface of the upper housing portion 302.

[0088] The base 314 can allow the display 208 to rotate relative to the upper housing portion 302. For example, the visual panel on the screen can be rotated to be viewed from multiple positions at or around the console 102. In some examples, the base 314 is rotatably coupled between the upper housing portion and the hinge 214. In some examples, the base 314 can allow the display to rotate 360°. In the example shown, the base 314 is mounted to the upper housing portion 302. In other examples, the rotatable base 314 can be positioned between the hinge 214 and the display 208. Using both the hinge 214 and the base 314, the display 208 can be rotated and angled in a variety of suitable positions to allow viewing of the screen of the display 208 without repositioning or moving the console 102.

[0089] Reference now Figures 6 to 9 , illustrates an example console 102, wherein the housing 204 is transparent to show some of the internal components of the console 102. As shown, the housing 204 can enclose a first coolant generator or pump 602, a second coolant generator or pump 604, a power supply 606, a first microwave generator 608, a second microwave generator 610, a fan 612, and a heat sink 614. The console 102 may include other elements that are not shown for illustration purposes only. Such other elements may include, but are not limited to, a control unit, a printed circuit board (PCB), one or more air ducts, a processor, a memory, wiring, and / or other ablation components.

[0090] The first coolant generator 602 and the second coolant generator 604 can be positioned inside the interior volume of the housing 204 towards the front face 230. In this position, the first coolant generator 602 and the second coolant generator 604 can be interfaced with the aforementioned first coolant port and the second coolant port, or can be operated to interact with the aforementioned first coolant port and the second coolant port. The first coolant generator 602 and the second coolant generator 604 can be positioned in the interior volume of the housing 204, but spaced apart from the radiator 614. As will be further described, the cooling system of the console 102 can operate to manage the thermal energy generated during the operation of the first coolant generator 602 and / or the second coolant generator 604, even though the radiator 614 may not be in direct contact with the first coolant generator 602 and the second coolant generator 604.

[0091] The heat sink 614 is positioned at the rear of the housing 204. The heat sink 614 may be in direct contact with one or more components of the console 102. As may be appreciated, it may be advantageous to position the heat sink 614 in direct thermal or conductive contact with components of the console that generate a significant amount of heat energy during use. The power source 606, the first microwave generator 608, and the second microwave generator 610 may generate a significant amount of heat energy during operation of the console 102. Without proper thermal management, the power source 606, the first microwave generator 608, and / or the second microwave generator 610 may fail during use or prematurely.

[0092] The power supply 606 can be designed and configured to provide power to multiple independent microwave generators that can be included in the console 102. In this example, the power supply 606 is designed and configured to provide power to both the first microwave generator 608 and the second microwave generator 610. The power supply 606 can be powered by using a single power cord (not shown) that can be connected to an electrical outlet. This simplification allows a single input power source to provide power to multiple microwave generators. As can be appreciated, due to the size of the power supply 606 and the need to provide power to multiple microwave generators, the power supply 606 can generate a large amount of heat energy during operation. Therefore, the power supply 606 can be positioned to be in direct contact with the heat sink 614. In the example shown, the power supply 606 is connected to the back wall of the heat sink 614. In other examples, the power supply 606 can be connected at other locations relative to the heat sink 614. In the example that only includes a single microwave generator, the power supply 606 can still generate considerable heat energy. The positioning of the power supply 606 in such a single generator example can be similarly positioned.

[0093] The first microwave generator 608 and the second microwave generator 610 can also generate a large amount of heat energy during operation. The first microwave generator 608 and the second microwave generator 610 can each be connected to opposite sides of the heat sink 614. In the example shown, the first microwave generator 608 is connected in direct contact with the top wall of the heat sink 614, and the second microwave generator 610 is connected to the bottom wall of the heat sink 614. In other examples, the first microwave generator 608 and / or the second microwave generator 610 can be connected and / or positioned differently relative to the heat sink 614. In other examples, the console 102 can include a single microwave generator or more than two generators. The positioning of the microwave generator (or a single generator) can be similar to the positioning shown. For example, in a single generator embodiment, the generator can be positioned at a position similar to the first microwave generator 608 and / or the second microwave generator 610. In a plurality of generator embodiments, a plurality of generators can be positioned along an elongated version of the heat sink 614 but in a manner similar to the first microwave generator 608 and the second microwave generator 610.

[0094] As will be further described, the heat sink 614 can be configured as an enclosure through which an air flow can be directed. The air flow can be heated as it passes through the heat sink 614 to remove heat and cool the power supply 606, the first microwave generator 608, and / or the second microwave generator 610. The air flow can also mix with air in the interior volume of the housing that is outside the heat sink. The air flow can move out of the interior volume of the housing 204 to remove heat from the interior volume of the housing 204 to an external location.

[0095] The fan 612 may be connected at one end of the heat sink 614. In the example shown, the fan 612 is connected at the end of the heat sink 614 near the inlet opening 206. The fan 612 may be suitably arranged and operated to draw air into the interior volume of the housing 204 and move the air through the heat sink 614. The air may then be moved to an exterior location after it exits the housing 204 through the outlet opening 206.

[0096] Now go to Fig.10 , illustrates an example console 102 in which the upper housing portion 302 is removed to expose the interior volume of the housing 204. As can be seen, the console 102 can include an inlet duct 1002 shaped to direct air from the inlet opening 206 into the interior volume of the housing 204. The fan 612 can be offset from the inlet opening 206 and / or the inlet duct 1002. In this example, the fan 612 is positioned behind or at least partially behind the inlet opening 206. Fig.11 and Fig.12 As further shown, the inlet duct 1002 prevents air entering the housing 204 from flowing directly through the fan 612 and into the heat sink 614. Instead, the inlet duct 1002 includes one or more walls that direct the air upward into the interior volume of the housing 204 adjacent to the heat sink 614. In this way, the air entering the housing 204 can mix with the air existing in the housing. This mixing can allow the air flow caused by the fan 612 to cool other internal components of the console 102 (e.g., the coolant generator) in addition to those components that come into contact with the heat sink 614 (e.g., the power supply and the microwave generator).

[0097] The fan 612 can be operated to direct air into the radiator 614. The fan 612 creates an air pressure gradient that draws air into the housing 204 through the inlet opening 206. The air is directed into the interior volume of the housing 204, away from the radiator 614. In the example shown, the inlet duct 1002 directs the air upward into the housing 204. The fan 612 can then draw the internal mixed air from the interior of the housing 204 into the radiator 614. As the air moves through the radiator 614, the air can be heated by drawing thermal energy away from the microwave generator and / or power supply to keep these components at a satisfactory operating temperature. The heated air can then be moved to an external location outside the housing 204.

[0098] As further shown in this example, the fan 612 can be fluidly coupled to the radiator 614 via a transition portion 1006. The transition portion 1006 can have an upstream side sized to be coupled to the fan 612 and a downstream side sized to be coupled to the radiator 614. Because the fan 612 and the radiator 614 can have different shapes, the upstream side and the downstream side of the transition portion 1006 can have different shapes. The transition portion 612 can be configured so that substantially all of the air flow entering the fan 612 is moved to the radiator 614. In a different example, if the fan 612 and the radiator 614 have a similar outer profile or shape, the transition portion 1006 can have a different shape or can not be used.

[0099] The transition portion 1006 may also be aerodynamically shaped and / or contoured to minimize the loss of air pressure through the transition portion 1006 in order to optimize the system air flow and the cooling efficiency of the heat sink. The transition portion 1006 may include guide vanes, fins, baffles, or other features located in the interior to preferentially affect the air flow approaching or entering the heat sink. In one example, the transition portion 1006 may include internal features to aerodynamically minimize the loss of air pressure through the transition portion 1006 and / or preferentially distribute the air flow density to and / or between different fluid channels in the heat sink.

[0100] like Fig.10 As shown in , the console 102 may include an outlet duct 1004. The outlet duct 1004 may be connected to the outlet end of the radiator 614. The outlet duct 1004 may also be connected to the outlet opening 402. The outlet duct 1004 may direct the air from the radiator 614 out of the outlet opening 402. Fig.15 and Fig.16, because the heat sink 614 can be positioned behind the outlet opening 402, the outlet duct 1004 can direct the air flow forward in the housing 204 to the outlet opening 402. The outlet duct 1004 can direct substantially all of the air flow from the heat sink 614 to the outlet opening 402. Because the air has been significantly heated due to the transfer of heat energy from the microwave generator and the power supply into the air flow, it can be desirable to move the air flow from the heat sink to an external location. Therefore, it can be advantageous to direct the outlet air to an external location rather than allowing the outlet air to mix with the air within the housing 204 and / or contact other internal components of the console 102.

[0101] Although not shown, the heat sink 614 may include one or more fins extending between one or more walls of the heat sink or protruding from one or more walls of the heat sink into the interior of the heat sink 614. The fins may extend from the walls to conduct heat energy from a microwave generator and / or a power supply that may be connected to the corresponding wall. For example, the heat sink 614 may include internal fins extending horizontally between the front and rear walls of the heat sink 614. In other examples or in other parts of the heat sink 614, the fins may extend vertically from the top or bottom wall of the heat sink 614. The fins may increase the surface area of ​​the heat sink 614 to allow increased heat energy to be transferred from the fins to the air flow moving above and around the fins.

[0102] Reference now Figures 17 to 21 , another example cooling system is illustrated. In this example, the console 1700 may include one or more walls to define an internal volume. Although not shown, the console 1700 may be configured as a microwave ablation console and may include the features of the console 102 previously described. In this illustration, the console 1700 includes a housing 1702. The housing 1702 surrounds a first microwave generator 1710, a second microwave generator 1712, a power supply 1714, a heat sink 1708, and a fan 1716. The housing 1702 may include a first opening 1704 and a second opening 1706. The first opening 1704 and the second opening 1706 may allow air to flow into the housing 1702 or out of the housing 1702. The fan 1716 may operate to move air in or through the heat sink 1708 to manage the temperature of the first microwave generator 1710, the second microwave generator 1712, and / or the power supply 1714.

[0103] In this example, the fan 1716 can be positioned at the outlet end of the radiator 1708. The fan 1716 can draw air into the radiator 1708 through the end of the radiator 1708 opposite the fan 1716. In other examples, the fan 1716 can be positioned at the inlet end of the radiator 1708 as previously described.

[0104] The first microwave generator 1710 and the second microwave generator 1712 can be positioned on opposite sides of the heat sink 1708. In this example, the first microwave generator 1710 is positioned on a lateral side of the heat sink 1708, and the second microwave generator 1712 is positioned on an opposite lateral side of the heat sink 1708. In this example, the power supply 1714 is positioned on the bottom side of the heat sink 1708.

[0105] like Fig.19 , power supply 1714 may be spaced apart from first microwave generator 1710 and heat sink 1708. As can be seen, power supply 1714 is spaced apart from first microwave generator 1710 and heat sink 1708 by gap 1902. At a longitudinal position downstream of first microwave generator 1710, power supply 1714 may contact heat sink 1708 at position 1904. In this configuration, heat conduction does not occur between heat sink 1708 and power supply 1714 until a position downstream of the microwave generator.

[0106] Such a configuration is desirable so that (in Fig.19 Air flowing through the heat sink (in the right-to-left direction in FIG. 1 ) first collects thermal energy from the first microwave generator 1710 and the second microwave generator 1712. The air then moves to a portion of the heat sink 1708 downstream of the microwave generators (at or around location 1904) where thermal energy is collected from the power source 1714. In this configuration, the microwave generators are first cooled so that they are maintained at a sufficient operating temperature, as the microwave generators may be more susceptible to failure at elevated operating temperatures.

[0107] Reference now Fig.21 , an example heat sink 1708 is shown. For illustration purposes only, Fig.21 The outer wall of the heat sink is shown as transparent. In various embodiments, the walls and fins of the heat sink 1708 can be made of suitable materials with thermal conductivity properties to efficiently transfer thermal energy from the microwave generator and / or power supply to the air moving through the heat sink 1708. Example materials include copper and aluminum. In other examples, other alloys or ceramics can also be used.

[0108] As previously described, heat sink 1708 can include microwave generator portion 2102 and power supply portion 2104. Microwave generator portion 2102 can be located upstream of power supply portion 2104. This orientation can allow air moving through heat sink 1708 to be first heated by thermal energy from the microwave generator before the air is further heated by thermal energy from the power supply. Heat sink 1708 can include step 2108 to maintain a gap between the power supply and heat sink 1708 at microwave generator portion 2102.

[0109] The heat sink 1708 may include fins 2106, 2108 extending across the interior cavity of the heat sink 1708. The fins 2106, 2108 are configured from the same or similar material as the walls of the heat sink 1708 to conduct thermal energy from the microwave generator and power supply to air moving through the heat sink. The fins 2106, 2108 may be a continuous layer of material extending from one wall of the heat sink 1708 to the opposite wall of the heat sink 1708.

[0110] The fins 2106 can be positioned in the generator portion 2102, and the fins 2108 can be positioned in the power supply portion 2104. As shown, the fins 2106 in the generator portion can extend between two opposing lateral walls of the heat sink 1708. In such an orientation, each of the fins 2106 can be oriented in a substantially horizontal plane, and each fin 2106 can be oriented parallel to the other fins 2106. Because one generator is mounted to one lateral wall and the second generator is mounted to the opposite lateral wall, the fins 2106 in the generator portion 2102 can extend between the two lateral walls. Therefore, the fins 2106 extend between the walls of the heat sink 1708 where the generators are mounted. In this way, thermal energy from the first generator and / or the second generator can be conducted from the walls of the heat sink to the interior of the heat sink 1708 through the fins 2106. As the air passes over the fins 2106 , thermal energy is transferred from the first generator and / or the second generator to the air moving through the heat sink 1708 , passing over the fins 2106 .

[0111] The fins 2108 in the power supply section 2104 can be oriented in a different direction than the fins 2106. Since the power supply can be mounted to the bottom wall of the heat sink at the power supply section 2104, the fins 2108 can extend in a substantially vertical plane, and each fin 2106 can be oriented parallel to the adjacent fins 2108. Thermal energy from the power supply can be transferred from the bottom wall of the power supply section 2104 to the fins 2108 extending upward from the power supply. Air (after passing through the generator section 2102) can pass through the power supply section 2104. As the air passes through the fins 2108, thermal energy from the power supply can be transferred to the air via conduction through the bottom wall of the power supply section 2104 and the fins 2108 to the air flow.

[0112] It should be appreciated that the heat sink 1708 and / or aspects of the heat sink 1708 can be included in the heat sink 614 of the console 102 described previously. The heat sink 1708 can be included in the console 102 or other ablation consoles of the present disclosure. In addition, aspects of the console 102 and / or the heat sink 614 can be included or used in the heat sink 1708.

[0113] The example methods and devices described herein may be embodied at least in part in the form of computer-implemented processes and devices for practicing those processes and / or the functions described. The disclosed method may also be embodied at least in part in the form of a tangible, non-transient machine-readable storage medium encoded with a computer program code. The medium may include, for example, a RAM, a ROM, a CD-ROM, a DVD-ROM, a BD-ROM, a hard drive, a flash memory, or any other non-transient machine-readable storage medium, or any combination of these media, wherein when the computer program code is loaded into a computer and executed by the computer, the computer becomes a device for practicing the method. The method may also be embodied at least in part in the form of a computer, into which the computer program code is loaded and / or executed, so that the computer becomes a device for practicing the method. When implemented on a general-purpose processor, the computer program code segment configures the processor to create a specific logic circuit. Alternatively, the method may be embodied at least in part in a digital signal processor formed by a dedicated integrated circuit for executing the method.

[0114] The foregoing description of the embodiments has been provided for the purpose of illustration and description. It is not intended to be exhaustive or to limit the present disclosure. The individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but are interchangeable where applicable and can be used in selected embodiments, even if not specifically shown or described. It can also be varied in many ways. Such variations should not be considered as departing from the present disclosure, and all such modifications are intended to be included within the scope of the present disclosure.

[0115] The following is a list of non-limiting illustrative embodiments disclosed herein:

[0116] Illustrative embodiment 1: An apparatus for generating a microwave signal, comprising: a housing including a plurality of walls, an inlet opening, and an outlet opening defining an interior volume; a power source positioned in the interior volume; a first microwave generator and a second microwave generator, each operably coupled to the power source and each positioned in the interior volume, spaced apart from the power source; a heat sink positioned in the interior volume and contacting the power source, the first microwave generator, and the second microwave generator; and a fan positioned in the interior volume at a first end of the heat sink, the fan being configured to draw an air flow from the inlet opening into the interior volume and move the air flow through the heat sink.

[0117] Illustrative embodiment 2: The apparatus of illustrative embodiment 1, wherein the fan is offset from an inlet duct coupled to the inlet opening.

[0118] Illustrative Embodiment 3: The apparatus of any of the preceding illustrative embodiments, wherein the first generator and the second generator are positioned on opposite sides of the heat sink.

[0119] Illustrative Embodiment 4: The apparatus of any of the preceding illustrative embodiments, wherein the heat sink comprises a plurality of walls defining a cavity, and a plurality of fins are positioned in the cavity.

[0120] Illustrative Embodiment 5: The apparatus of any of the preceding illustrative embodiments, further comprising an outlet duct coupled to a second end of the radiator opposite the first end, wherein a heated air flow from the radiator is moved out of the outlet opening through the outlet duct.

[0121] Illustrative Embodiment 6: The apparatus of any of the preceding illustrative embodiments, further comprising a plurality of coolant pumps positioned in the interior volume, spaced apart from the radiator.

[0122] Illustrative Embodiment 7. The device of any of the preceding illustrative embodiments, wherein at least a portion of the air flow entering the interior volume through the inlet opening contacts interior components in the interior volume before entering the heat sink.

[0123] Illustrative Embodiment 8: The apparatus of any of the preceding illustrative embodiments, further comprising an inlet duct coupled to the inlet opening, the inlet duct directing incoming air upward into the interior volume.

[0124] Illustrative embodiment 9: The device according to any of the preceding illustrative embodiments, wherein the housing includes a first shell portion and a second shell portion, the first shell portion having a flange positioned around an outer periphery, the flange being configured to overlap with the outer periphery of the second shell portion.

[0125] Illustrative Embodiment 10: The device of any of the preceding illustrative embodiments, wherein the housing comprises a first handle protruding inwardly from an outer surface of the housing, the inlet opening being positioned in the first handle.

[0126] Illustrative Embodiment 11: The device of Illustrative Embodiment 10, wherein the housing includes a second handle protruding inwardly from the outer surface of the housing, the outlet opening being positioned in the second handle.

[0127] Illustrative Embodiment 12: The device of Illustrative Embodiment 11, wherein the first handle and the second handle are positioned on opposite sides of the housing.

[0128] Illustrative Embodiment 13: The device of any of the preceding illustrative embodiments, wherein the housing comprises a hinge configured to support a display and allow angular movement of the display relative to the housing.

[0129] Illustrative Embodiment 14: The device of any of the preceding illustrative embodiments, wherein the housing comprises a rotatable base configured to allow rotational movement of the display relative to the housing.

[0130] Illustrative Embodiment 15: The apparatus of any of the preceding illustrative embodiments, further comprising a bracket connected to the housing, the bracket configured to support a coolant container in a predetermined position relative to the housing.

[0131] Illustrative Embodiment 16: The apparatus of any of the preceding illustrative embodiments, wherein both the first microwave generator and the second microwave generator are powered by the power supply.

[0132] Illustrative Embodiment 17: The apparatus of any of the preceding illustrative embodiments, wherein the first microwave generator and the second microwave generator are independently operable to deliver a first microwave signal and a second microwave signal, respectively.

[0133] Illustrative Embodiment 18: The apparatus of Illustrative Embodiment 17, wherein the first microwave signal and the second microwave signal are different.

[0134] Illustrative Embodiment 19: The apparatus of any of the preceding illustrative embodiments, wherein the power source comprises a single power input.

[0135] Illustrative embodiment 20: A shell for enclosing a microwave ablation unit, the shell comprising: a first shell portion; a second shell portion comprising a flange for mating with the first shell portion and a contoured upper surface for directing fluid toward one or more sides; and a face portion configured to mating with a front opening defined by the first shell portion and the second shell portion.

[0136] Illustrative Embodiment 21: The housing of Illustrative Embodiment 20, further comprising a back plate configured to mate with a back opening defined by the first housing portion and the second housing portion.

[0137] Illustrative Embodiment 22: The housing of any of Illustrative Embodiments 20 or 21, wherein the first housing portion includes an inlet opening and an outlet opening, the inlet opening being configured to receive an incoming air flow and the outlet opening being configured to emit an outgoing air flow.

[0138] Illustrative Embodiment 23: The housing of Illustrative Embodiment 22, wherein the inlet opening is positioned in an inline handle formation.

[0139] Illustrative Embodiment 24: The housing of any of Illustrative Embodiments 20 to 23, wherein the face portion includes a first microwave port and a second microwave port, the first microwave port and the second microwave port each being configured to receive a connector of a microwave ablation probe assembly.

[0140] Illustrative Embodiment 25: The housing of any one of Illustrative Embodiments 20 to 24, wherein the face portion includes a first coolant port and a second coolant port, each of the first coolant port and the second coolant port being configured to receive a coolant cartridge of a microwave ablation probe assembly.

[0141] Illustrative Embodiment 26: The housing of any one of Illustrative Embodiments 20 to 25, wherein the contoured upper surface is configured to direct fluid away from the face portion.

[0142] Illustrative Embodiment 27: The housing of any one of Illustrative Embodiments 20 to 26, wherein the flange is configured to overlap with a complementary flange of the first housing portion.

[0143] Illustrative Embodiment 28: The housing of any one of Illustrative Embodiments 20 to 27, wherein the first housing portion, the second housing portion, and the face portion define an interior volume configured to hold a microwave generator, a power source, a heat sink, and a coolant pump.

[0144] Illustrative Embodiment 29: The housing of Illustrative Embodiment 28, wherein the microwave generator is a first microwave generator, the coolant pump is a first coolant pump, and the interior volume is further configured to hold a second microwave generator and a second coolant pump.

[0145] Illustrative embodiment 30: A cooling structure for managing thermal energy in a microwave ablation console, the cooling structure comprising: a heat sink comprising: a first wall comprising one or more first connection points for holding a first microwave generator; a second wall comprising one or more second connection points for holding a second microwave generator; a third wall comprising one or more third connection points for holding a power source; and a fourth wall, wherein the first wall, the second wall, the third wall and the fourth wall define a chamber; an inlet manifold for directing air into the chamber; an outlet manifold for directing the air out of the chamber; and a fan connected to the inlet manifold.

[0146] Illustrative Embodiment 31: The cooling structure of Illustrative Embodiment 30, wherein the first wall and the second wall are positioned on opposite sides of the heat sink.

[0147] Illustrative Embodiment 32: The cooling structure of any of Illustrative Embodiments 30 or 31, wherein the heat sink comprises a plurality of fins positioned inside the chamber.

[0148] Illustrative Embodiment 33: The cooling structure of any one of Illustrative Embodiments 30 to 32, wherein the first wall, the second wall, the third wall, and the fourth wall are connected to form a rectangular shape.

Claims

1. A device for generating a microwave signal, comprising: a housing including a plurality of walls defining an interior volume, an inlet opening, and an outlet opening; a power source positioned within the interior volume; a first microwave generator and a second microwave generator, each operably coupled to the power source and each positioned in the interior volume spaced apart from the power source; as well as a heat sink positioned within the interior volume and contacting the power source, the first microwave generator, and the second microwave generator; as well as A fan is positioned in the interior volume at a first end of the heat sink, the fan being configured to draw an air flow from the inlet opening into the interior volume and move the air flow through the heat sink.

2. The apparatus of claim 1, wherein the fan is offset from an inlet duct coupled to the inlet opening.

3. The apparatus of claim 1, wherein the first generator and the second generator are positioned on opposite sides of the heat sink. 4 . The apparatus of claim 1 , wherein the heat sink comprises a plurality of walls defining a cavity, and a plurality of fins are positioned in the cavity.

5. The apparatus of claim 1, further comprising an outlet duct coupled to a second end of the heat sink opposite the first end, wherein a heated air flow from the heat sink is moved out of the outlet opening through the outlet duct. 6 . The apparatus of claim 1 , further comprising a plurality of coolant pumps positioned within the interior volume, spaced apart from the radiator.

7. The apparatus of claim 1, wherein at least a portion of the air flow entering the interior volume through the inlet opening contacts interior components in the interior volume before entering the heat sink.

8. The apparatus of claim 1, further comprising an inlet duct coupled to the inlet opening, the inlet duct directing incoming air upward into the interior volume.

9. The device of claim 1, wherein the housing comprises a first shell portion and a second shell portion, the first shell portion having a flange positioned around an outer periphery, the flange being configured to overlap an outer periphery of the second shell portion.

10. The device of claim 1, wherein the housing includes a first handle protruding inwardly from an outer surface of the housing, the inlet opening being positioned in the first handle.

11. The device of claim 10, wherein the housing includes a second handle protruding inwardly from the outer surface of the housing, the outlet opening being positioned in the second handle.

12. The device of claim 11, wherein the first handle and the second handle are positioned on opposite sides of the housing.

13. The apparatus of claim 1, wherein the housing comprises a hinge configured to support a display and allow angular movement of the display relative to the housing.

14. The apparatus of claim 13, wherein the housing comprises a rotatable base configured to allow rotational movement of the display relative to the housing.

15. The apparatus of claim 1, further comprising a bracket coupled to the housing, the bracket configured to support a coolant container in a predetermined position relative to the housing.

16. The apparatus of claim 1, wherein both the first microwave generator and the second microwave generator are powered by the power supply.

17. The apparatus of claim 1, wherein the first microwave generator and the second microwave generator are independently operable to deliver a first microwave signal and a second microwave signal, respectively.

18. The apparatus of claim 17, wherein the first microwave signal and the second microwave signal are different.

19. The apparatus of claim 17, wherein the power supply comprises a single power input.

20. A shell for enclosing a microwave ablation unit, the shell comprising: a first housing portion; a second housing portion including a flange for mating with the first housing portion and a contoured upper surface for directing fluid toward one or more sides; as well as A face portion is configured to mate with a front opening defined by the first shell portion and the second shell portion.

21. The housing of claim 20, further comprising a back plate configured to mate with a back opening defined by the first housing portion and the second housing portion.

22. The housing of claim 20, wherein the first housing portion includes an inlet opening and an outlet opening, the inlet opening configured to receive an incoming air flow and the outlet opening configured to emit an outgoing air flow.

23. The housing of claim 22, wherein the inlet opening is located in an inline handle formation.

24. The housing of claim 20, wherein the face portion includes a first microwave port and a second microwave port, the first microwave port and the second microwave port each being configured to receive a connector of a microwave ablation probe head assembly.

25. The housing of claim 20, wherein the face portion includes a first coolant port and a second coolant port, the first coolant port and the second coolant port each being configured to receive a coolant cartridge of a microwave ablation probe head assembly.

26. The housing of claim 20, wherein the contoured upper surface is configured to direct fluid away from the face portion.

27. The housing of claim 20, wherein the flange is configured to overlap a complementary flange of the first housing portion.

28. The housing of claim 20, wherein the first housing portion, the second housing portion, and the face portion define an interior volume configured to hold a microwave generator, a power source, a heat sink, and a coolant pump.

29. The housing of claim 28, wherein the microwave generator is a first microwave generator, the coolant pump is a first coolant pump, and the interior volume is further configured to hold a second microwave generator and a second coolant pump.

30. A cooling structure for managing thermal energy in a microwave ablation console, the cooling structure comprising: A radiator comprising: a first wall including one or more first connection points for holding a first microwave generator; a second wall including one or more second connection points for holding a second microwave generator; a third wall including one or more third connection points for holding a power source; and a fourth wall, wherein the first wall, the second wall, the third wall, and the fourth wall define a chamber; an inlet manifold for directing air into the chamber; an outlet manifold for directing the air out of the chamber; and A fan is connected to the inlet manifold.

31. The cooling structure of claim 30, wherein the first wall and the second wall are positioned on opposite sides of the heat sink.

32. The cooling structure of claim 30, wherein the heat sink comprises a plurality of fins positioned within the chamber.

33. The cooling structure of claim 30, wherein the first wall, the second wall, the third wall, and the fourth wall are connected to form a rectangular shape.