Filter tube assembly for connecting surgical gas delivery device to surgical access device

Abstract

A filter tube assembly for connecting a surgical gas delivery device to a surgical access device is disclosed, comprising: a) an interface plate adapted and configured to engage with the surgical gas delivery device and having a front surface and a rear surface; b) a plurality of tube connectors extending from the front surface of the interface plate; and c) a plurality of filter elements extending from the rear surface of the interface plate.

Description

[0001] This application is a divisional application of the application filed on September 19, 2019, with application number 201980061195.1 and invention title "Multi-mode five-lumen gas circulation system for use in endoscopic surgery".

[0002] Cross-reference to related applications

[0003] This application claims priority to U.S. Patent Application Serial No. 16 / 138,354, filed September 21, 2018, the disclosure of which is incorporated herein by reference in its entirety. Background Technology 1. Technical Field

[0005] This invention relates to endoscopic surgery, and more specifically, to a surgical gas circulation system adapted and configured to perform multimodal operations including filling, recirculation, and fume extraction using a filter assembly with five individual lumens.

[0006] 2. Related technical descriptions

[0007] Endoscopic surgery is a well-known technique. In fact, laparoscopic surgeries performed within the abdominal cavity, such as cholecystectomy, appendectomy, hernia repair, and nephrectomy, have become very common. The benefits of such minimally invasive procedures include reduced trauma to the patient, a lower chance of infection, and shorter recovery time. These procedures are typically performed using a device called a cannula or trocar, which facilitates the introduction of laparoscopic instruments into the patient's abdominal cavity.

[0008] Endoscopic surgical procedures performed in other surgical cavities or regions of the body include thoracoscopic surgery performed in the patient's chest cavity, as well as intracavitary surgeries, such as transanal and transesophageal surgeries.

[0009] Endoscopic surgery typically involves filling or “inflating” the surgical cavity with pressurized fluids such as carbon dioxide to create surgical space. In cases where laparoscopy is performed within the abdominal cavity, this is known as pneumoperitoneum. Inflation can be performed via a surgical access device such as a cannula equipped to deliver the inflation fluid or via a separate inflation device such as an inflation (pneumoperitoneum) needle.

[0010] The cannula must also provide a way to maintain intraoperative pressure while still allowing at least a minimal degree of freedom of movement for the surgical instrument by sealing between the cannula and the surgical instrument being used. Typically, a mechanical seal is provided on the cannula to prevent the venting gas from escaping from the surgical cavity. These seals usually consist of a duckbill valve made of a relatively flexible material that seals around the outer surface of the surgical instrument passing through the cannula.

[0011] SurgiQuest, Inc., a wholly owned subsidiary of ConMed Corporation, has developed unique gas-tight surgical access devices that allow immediate access to filled surgical cavities without the need for conventional mechanical seals, as described, for example, in U.S. Patent Nos. 8,795,223 and 9,907,569, the entire disclosure of which is incorporated herein by reference. These gas-tight devices have an inner tubular body portion and an outer tubular body portion. The inner tubular body portion defines a central lumen for introducing surgical instruments into the surgical cavity, and the outer tubular body portion defines an annular outer lumen surrounding the inner tubular body portion for delivering filling gas into the surgical cavity and for facilitating periodic sensing of cavity pressure. During use, pressurized gas is delivered to the access device, where it is accelerated by an internal nozzle to create a gas-tight zone within the central cavity of the access device. The gas used to create the gas-tight zone is then removed from the access device via a suction line.

[0012] These dual-lumen gas-sealed inlet devices are designed for use with unique multimodal surgical gas delivery systems, as described in commonly assigned U.S. Patents 9,067,030 and 9,526,849, the disclosures of which are incorporated herein by reference. The gas delivery system includes a filling subunit for delivering filling gas to the external annular lumen of the inlet device and for obtaining periodic pressure readings from the surgical cavity. The gas delivery system also includes a gas recirculation pump for delivering pressurized gas to a nozzle located within the inlet device and for removing waste gas from the inlet device, thereby creating a gas recirculation path between the pump and the inlet port.

[0013] Those skilled in the art will readily understand that electrocautery devices are commonly used in endoscopic surgery. These devices are used to cut and / or coagulate tissue and typically emit fumes during the process. These fumes can obscure the endoscopic camera's view, leading to surgical delays or requiring the surgical team to remove the fumes from the surgical cavity.

[0014] It is known to utilize a dual-lumen gas-tight inlet device combined with a multi-mode gas delivery device to remove fumes-filled gas from a surgical cavity while maintaining a gas seal within the inlet device. In this operating mode, fumes are removed via a gas recirculation path that creates a gas seal within the inlet device, with the gas being filtered at both the input and output branches of the path. Furthermore, the fumes-filled gas flows upwards through the central cavity of the inlet device via a "chimney" effect and enters the gas recirculation path, where it is filtered within the suction line.

[0015] While this smoke extraction method is somewhat effective, it has certain drawbacks. First, the smoke extraction mode of the current multi-mode gas delivery device described in U.S. Patent Nos. 9,067,030 and 9,526,849 is not continuous. Instead, it switches between on and off because the addition of filling gas through the external annular lumen of the device must be interrupted so that the filling subunit within the gas delivery device can accurately sense the chamber pressure. Second, some of the smoke-filled gas flowing upward through the gas-sealed central cavity of the device may find its way out of the opening end of the inlet device, where the smoke is released into the operating room, producing an undesirable odor.

[0016] Therefore, it would be beneficial to separate the smoke extraction function from the gas recirculation function of the gas-sealed inlet port, so that the smoke extraction can be performed continuously and that the smoke-filled gas is not unnecessarily released into the operating room environment through the opening of the gas-sealed inlet port.

[0017] This invention provides a beneficial solution to these problems by integrating a secondary gas circulation pump into a multi-mode gas delivery device specifically designed for exhaust, thereby separating the exhaust from the gas recirculation path used to create a gas-sealed zone in the gas-sealed entry device. Summary of the Invention

[0018] The present invention relates to a novel and useful system for performing endoscopic surgery within a surgical cavity, the system comprising: a multi-mode gas delivery device including a primary gas circulation pump, a secondary gas circulation pump and a filling subunit; and an interface plate adapted and configured to engage with the multi-mode gas delivery device, and including connectors and filter seats corresponding to each of five separate and distinct lumens.

[0019] The first lumen is the filling and sensing lumen, used to deliver filling gas from the filling subunit to the operating chamber and to facilitate sensing of pressure within the operating chamber. The second lumen is the gas delivery lumen, used to deliver pressurized gas from the primary gas circulation pump to the gas-tight inlet device. The third lumen is the gas return lumen, used to return the gas used to create a gas seal within the gas-tight inlet device to the primary gas circulation pump. The fourth lumen is the smoke exhaust lumen, used to remove smoke-filled gas from the operating chamber via a secondary gas circulation pump. The fifth lumen is the recirculation supply lumen, used to return filtered gas from the secondary gas circulation pump to the operating chamber.

[0020] In one embodiment of the invention, the filling and sensing lumen is attached to a corresponding connector on an interface plate, and a modular bidirectional filter canister is mounted on the interface plate to communicate with the attached lumen. Furthermore, the distal end of the filling and sensing lumen has a coupling adapted and configured to connect to a valve-sealed inlet device.

[0021] In another embodiment of the invention, the filling and sensing lumen, the gas delivery lumen, and the gas return lumen are attached to corresponding connectors on an interface plate, and a modular bidirectional filter canister is mounted on the interface plate to communicate with each of the attached lumens. Furthermore, the distal ends of the filling and sensing lumen, the gas delivery lumen, and the gas return lumen are attached to a three-lumen connector adapted and configured to connect to a gas-tight inlet device. Alternatively, the distal ends of the gas delivery lumen and the gas return lumen are attached to a two-lumen connector adapted and configured to connect to a gas-tight inlet device, and the distal end of the filling and sensing lumen has a connector adapted and configured to connect to a valve-tight inlet device.

[0022] In another embodiment of the invention, the exhaust cavity and the recirculation supply cavity are attached to corresponding connectors on the interface plate, and a filter canister is disposed on the interface plate to communicate with each of the attached cavities. Furthermore, the distal end of the exhaust cavity has a coupling adapted and configured to connect to a first valve sealing inlet device, and the distal end of the recirculation supply cavity has a coupling adapted and configured to connect to a second valve sealing inlet device.

[0023] In another embodiment of the invention, the filling and sensing cavity, the exhaust cavity, and the recirculation supply cavity are attached to corresponding connectors on an interface plate, and a filter canister is disposed on the interface plate to communicate with each of the attached cavities. Furthermore, the distal end of the filling and sensing cavity has a coupling adapted and configured to connect to a first valve-sealing inlet device, the distal end of the exhaust cavity has a coupling adapted and configured to connect to a second valve-sealing inlet device, and the distal end of the recirculation supply cavity has a coupling adapted and configured to connect to a third valve-sealing inlet device.

[0024] In a final embodiment of the invention, the filling and sensing cavity, gas delivery cavity, gas return cavity, exhaust cavity, and recirculation supply cavity are all attached to corresponding connectors on an interface plate, and a modular filter canister is mounted on the interface plate to communicate with each of the attached cavities. Furthermore, the distal ends of the filling and sensing cavity, gas delivery cavity, and gas return cavity are attached to a three-cavity connector adapted and configured to connect to a gas-sealed inlet device; the distal end of the exhaust cavity has a connector adapted and configured to connect to a first valve-sealed inlet device; and the distal end of the recirculation supply cavity has a connector adapted and configured to connect to a second valve-sealed inlet device.

[0025] Alternatively, the distal ends of the gas delivery lumen and the gas return lumen are attached to a dual-lumen connector adapted and configured to connect to a gas-sealed inlet device, the distal end of the filling and sensing lumen has a connector adapted and configured to connect to a first valve-sealed inlet device, the distal end of the exhaust lumen has a connector adapted and configured to connect to a second valve-sealed inlet device, and the distal end of the recirculation supply lumen has a connector adapted and configured to connect to a third valve-sealed inlet device.

[0026] It is conceivable that each filter holder on the interface plate will be configured to accommodate a uniform or generic modular filter canister comprising a pleated filter element for filtering gases flowing through it. Those skilled in the art will readily understand that the modularity and versatility of the filter canister offers benefits and advantages in terms of reduced manufacturing costs, reduced inventory, and ease of assembly. Each modular filter canister is preferably attached to the corresponding filter holder by conventional methods known in the art, such as adhesives, ultrasonic welding, rotary welding, and laser welding, or by threaded or interference fits.

[0027] Preferably, the filter element in each tank is configured for bidirectional flow, allowing it to be used to filter either a clean, pressurized gas stream from the outlet side of the gas circulation pump or a waste or flue-filled gas stream heading towards the suction side of the gas circulation pump. The bidirectional filter element in each tank is preferably selected from a group of filter media consisting of pleated filter media, woven polymer mesh filter media, nonwoven polymer mesh filter media, sintered metal filter media, sintered polymer filter media, activated carbon filter media, and particulate filter media. Each filter tank also includes a device for detecting the liquid level in the filter tank. This may include optical sensors, etc.

[0028] It is conceivable that the interface board may include a fixed or integral filter canister operatively associated with a filter holder that communicates with a filling and sensing lumen, while four other filter holders would each have the aforementioned modular filter canisters associated with them. This is because virtually every embodiment or type of interface board may include a filling and sensing lumen. It is the most commonly used gas path in the embodiments of the invention described herein.

[0029] It is also conceivable that the interface board includes means for transmitting information to a controller in the gas delivery device, the information identifying which of the five lumens is attached to the interface board. Information received from the interface board of the tube assembly is preferably transmitted to the gas delivery device via an RFID communication link, an NFC communication link, a Bluetooth communication link, a WiFi communication link, or via a microswitch.

[0030] The present invention also relates to an interface board for a multi-mode gas delivery device used in endoscopic surgery within a surgical cavity. The interface board includes: a first connector for a filling and sensing lumen that delivers filling gas from a filling subunit in the gas delivery device to the surgical cavity and facilitates sensing of pressure within the surgical cavity; a second connector for a gas delivery lumen that delivers pressurized gas from a primary gas circulation pump in the gas delivery device to a gas-tight inlet device; a third connector for a gas return lumen that returns gas used to create a gas seal within the gas-tight inlet device to the primary gas circulation pump; a fourth connector for a smoke exhaust lumen that removes smoke-filled gas from the surgical cavity via a secondary gas circulation pump in the gas delivery device; and a fifth connector for a recirculation supply lumen that returns filtered gas from the secondary gas circulation pump to the surgical cavity.

[0031] The interface board also includes a filter holder corresponding to each of the five connectors for receiving a respective filter canister. In one embodiment of the invention, a filling and sensing lumen is attached to a first connector of the interface board, and a filter canister is positioned on the interface board to communicate with the attached lumen. In another embodiment of the invention, a filling and sensing lumen is attached to a first connector of the interface board, a gas delivery lumen is attached to a second connector of the interface board, a gas return lumen is attached to a third connector of the interface board, and a filter canister is positioned on the interface board to communicate with each of the attached lumens.

[0032] In another embodiment of the invention, the exhaust lumen is connected to a fourth connector of the interface plate, the recirculation supply lumen is connected to a fifth connector of the interface plate, and a filter canister is disposed on the interface plate to communicate with each of the attached lumens. In yet another embodiment of the invention, the filling and sensing lumen is attached to a first connector of the interface plate, the exhaust lumen is attached to a fourth connector of the interface plate, the recirculation supply lumen is attached to a fifth connector of the interface plate, and a filter canister is disposed on the interface plate to communicate with each of the attached lumens.

[0033] In a final embodiment of the interface board of the present invention, the filling and sensing lumen is attached to a first connector of the interface board, the gas delivery lumen is attached to a second connector of the interface board, the gas return lumen is attached to a third connector of the interface board, the exhaust lumen is attached to a fourth connector of the interface board, the recirculation supply lumen is attached to a fifth connector of the interface board, and a filter canister is disposed on the interface board to communicate with each of the attached lumens.

[0034] The present invention also relates to a multi-mode gas delivery device for endoscopic surgery within a surgical cavity, comprising a filling subunit for delivering filling gas from a gas source to the surgical cavity and for sensing the pressure within the surgical cavity; a primary gas circulation pump for delivering pressurized gas to a gas seal inlet to create a gas seal therein and thereby maintain a stable pressure within the surgical cavity and for receiving gas returned from the gas seal inlet for forming the gas seal; and a secondary gas circulation pump for continuously discharging flue-filled gas from the surgical cavity. The secondary pump can operate independently of the sensed pressure within the surgical cavity. Preferably, the secondary gas circulation pump is further configured to return filtered gas to the surgical cavity.

[0035] The gas delivery device also includes a controller for activating an operating mode from a set of operating modes, the set of operating modes including: i) a charging mode driven by the charging subunit; ii) a charging and gas circulation mode driven by the charging subunit and the primary gas circulation pump; iii) a smoke extraction and gas return mode driven by the secondary gas circulation pump; iv) a charging and smoke extraction mode driven by the charging subunit and the secondary gas circulation pump; v) a charging, smoke extraction, and gas return mode driven by the charging subunit and the secondary gas circulation pump; and vi) a charging and gas circulation mode driven by the charging subunit and the primary gas circulation pump, and a smoke extraction and gas return mode driven by the secondary gas circulation pump.

[0036] Preferably, the controller is adapted and configured to determine which operating mode to initiate based on information received from the interface board of the pipe assembly operatively associated with it. The information received from the interface board of the pipe assembly is preferably transmitted to the gas delivery device via an RFID communication link, an NFC communication link, a Bluetooth communication link, a WiFi communication link, or via a microswitch.

[0037] These and other features of the gas circulation system of the present invention will become more apparent to those skilled in the art from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0038] To enable those skilled in the art to readily understand how to manufacture and use the gas circulation system of the present invention without excessive experimentation, preferred embodiments thereof will now be described in detail with reference to the accompanying drawings, wherein:

[0039] Figure 1This is a perspective view of the gas circulation system of the present invention used during the execution of laparoscopic surgery. The gas circulation system includes a multi-mode gas delivery device having an interface plate connected to a three-lumen tube assembly associated with a gas-sealed inlet port, and an exhaust lumen and a recirculation supply lumen associated with two valve-sealed inlet ports.

[0040] Figure 1A It is a perspective view of a valve-sealed inlet port with a conventional Luer connector for connection with a single-lumen connector;

[0041] Figure 1B It is a perspective view of a single-lumen gas-tight inlet port with a dual-lumen connector for connection with a dual-lumen connector associated with a dual-lumen tube assembly;

[0042] Figure 1C It is a perspective view of a dual-cavity gas-tight inlet port with a three-cavity connector for connection with a three-cavity connector associated with a three-cavity tube assembly;

[0043] Figure 2 yes Figure 1 The schematic diagram of the multi-mode gas delivery device shown includes a filling subunit and a primary gas circulation pump for communication with the filling and sensing cavity, the gas delivery cavity and the gas return cavity, and a secondary gas circulation pump for communication with the exhaust cavity and the recirculation supply cavity.

[0044] Figure 3 This is a perspective view of the interface board of the present invention as seen from its front or outer surface, showing five connectors disposed thereon;

[0045] Figure 4 This is a perspective view of the interface board of the present invention, shown from its rear or inner surface, revealing its five filter seats, one of which has a modular filter unit installed therein;

[0046] Figure 5 This is an enlarged perspective view of a modular filter unit configured according to a preferred embodiment of the present invention, the modular filter unit including an outer surface seal and an inner pleated filter;

[0047] Figure 6 The filter compartment of the present invention is along Figure 5 A sectional view taken from line 6-6;

[0048] Figure 7 and 8 This is a perspective view of the interface board of the present invention, wherein the filling and sensing lumen is attached to the interface board together with a single filter unit;

[0049] Figure 9 and 10 This is a perspective view of the interface board of the present invention, wherein the filling and sensing cavity, together with the exhaust cavity and two associated filter units, are attached to the interface board.

[0050] Figure 11 and 12 This is a perspective view of the interface board of the present invention, wherein the filling and sensing lumen, together with the exhaust lumen, the recirculation supply lumen, and three associated filter units, are attached to the interface board.

[0051] Figure 13 This is a side view of the interface board of the present invention, and Figure 14 It is a perspective view showing that the filling and sensing lumen, the gas delivery lumen, and the gas return lumen are attached to the interface plate, and the distal ends of the three lumens are connected to the three-lumen connector along with three associated filter units.

[0052] Figure 15 and 16 This is a perspective view of the interface plate of the present invention as seen from its front and rear surfaces, wherein the filling and sensing lumen is attached to the interface plate together with the gas delivery lumen and the gas return lumen, and wherein the distal ends of the gas delivery lumen and the gas return lumen are connected to the dual lumen connector, while the distal end of the isolation lumen is attached to a conventional connector and three associated filter units.

[0053] Figures 17 to 19 The interface plate of the present invention is shown, as viewed from its front and rear surfaces, wherein the filling and sensing lumen, the gas delivery lumen, the gas return lumen, the exhaust lumen, and the recirculation supply lumen are all attached to the interface plate, and wherein the distal ends of the filling and sensing lumen, the gas delivery lumen, and the gas return lumen are all attached to a three-lumen connector, while the distal ends of the exhaust lumen and the recirculation supply lumen are each attached to separate conventional connectors, as well as five associated filter units;

[0054] Figures 20 to 22 This is an illustration of another embodiment of the interface board configured according to a preferred embodiment of the present invention, which has a fixed filter tank corresponding to the filling path, wherein a single filter media is installed; and

[0055] Figure 23 and 24 Showing the corresponding Figure 11 and 12 An alternative arrangement is provided in which the distal ends of the filling and sensing lumen and the distal ends of the recirculation supply lumen are operatively associated with a coupling that will be connected to a first valve seal inlet port, and wherein the distal end of the exhaust lumen will be connected to a second valve seal inlet port. Detailed Implementation

[0056] Referring now to the accompanying drawings, where similar reference numerals identify similar structural elements and features of the invention, Figure 1 A gas circulation system is shown for performing endoscopic surgery in a patient's surgical cavity, and more specifically, for performing laparoscopic surgery in a patient's abdominal cavity. This gas circulation system is configured according to a preferred embodiment of the present disclosure and is generally indicated by reference numeral 10.

[0057] Those skilled in the art will readily understand that the gas circulation system 10 of the present invention can be used to perform other types of endoscopic surgery besides laparoscopic surgery. For example, the system 10 can be used to perform thoracoscopic surgery in a patient's chest cavity, as well as endocavitary surgery, such as transanal and transesophageal surgery.

[0058] See Figure 1 The gas circulation system 10 of the present invention is specifically designed to cooperate with a programmable multi-mode gas delivery device 12. The gas delivery device 12 is based, for example, on a multi-mode gas delivery device described in commonly assigned U.S. Patent No. 9,375,539, the entire disclosure of which is incorporated herein by reference.

[0059] The gas delivery device 12 includes a graphical user interface 14 for setting operating parameters, and more specifically, for communicating with an internal controller 16 (see [link]). Figure 2 The internal controller is programmable to operate the gas delivery device 12 in various operating modes according to the needs of a specific endoscopic surgical procedure.

[0060] More specifically, as explained in more detail below, and with reference to Figures 1A to 1C The controller 16 of the gas delivery device 12 of the present invention is programmed or otherwise configured to perform: i) via a conventional Luer connector 210 (see Figure 1A ii) Inflation via a single valve-sealed inlet port 200; and gas circulation via a single-lumen gas-sealed inlet port 300 having a dual-lumen connector 310 (see Figure 1B ); iii) through a dual-lumen gas-tight inlet port 400 with a three-lumen connector 410 (see Figure 1C iv) Perform charging and gas circulation; iv) Discharge smoke gas and filtered gas through two separate valve-sealed inlet ports 200; v) Charge and discharge smoke gas through two separate valve-sealed inlet ports 200; vi) Charge, discharge smoke gas and return filtered gas through three separate valve-sealed inlet ports 200; and vii) Perform charging and gas circulation through dual-lumen gas-sealed inlet ports 300, and discharge smoke-filled gas and return filtered gas through two separate valve-sealed inlet ports 200.

[0061] Combined again Figure 2 The schematic diagram shown is for reference. Figure 1 The gas delivery device 12 of the present invention further includes a primary gas circulation pump 18 for promoting the circulation / recirculation of pressurized gas relative to the surgical cavity 20 of the patient 22, a secondary gas circulation pump 24 for promoting the discharge of fumes from the surgical cavity 20 of the patient 22, and a filling subunit 26 for delivering filling gas from the gas source 28 to the surgical cavity 20 of the patient 22 and periodically sensing the pressure within the surgical cavity 18 of the patient 22.

[0062] The gas delivery system 10 of the present invention also includes an interface plate 30 adapted and configured to engage with a multi-mode gas delivery device 12, and designed to connect to up to five different lumens or tubes, each of which has a different function depending on a selective or automatically activated operating mode, as explained in more detail below. More specifically, the front surface of the gas delivery device 12 has complementary receiving lumens 32 for receiving and engaging with the interface plate 30.

[0063] Now for reference Figure 3 and 4 The interface board 30 of the present invention includes a front surface or outer surface 34 and a rear surface or inner surface 36. For example... Figure 3 As shown, the front surface 34 of the interface plate 30 includes a first connector 42 for connection to the filling and sensing lumen to deliver filling gas from the filling subunit 26 to the surgical cavity 20, and for facilitating sensing of the surgical cavity pressure via the valve-sealed entry device 200. It is conceivable, and entirely within the scope of the invention, that the sealed entry device 200 may be replaced by another device including, for example, a pneumoperitoneal needle or another type of surgical entry device or cannula suitable for delivering filling gas to the surgical cavity, including any entry device disclosed herein.

[0064] The front surface 34 of the interface plate 30 also includes a second connector 44 for connection to a gas delivery lumen to deliver pressurized gas from the primary gas circulation pump 18 to the gas seal inlet device 300 or 400. The front surface 34 of the interface plate 30 also includes a third connector 46 for connection to a gas return lumen to return gas used to create a gas seal within the gas seal inlet device 300 or 400 to the primary gas circulation pump 18.

[0065] The front surface 34 of the interface plate 30 also includes a fourth connector 48 for connection to an exhaust duct cavity, which removes smoke-filled gas from the surgical chamber 20 via a valve-sealed access port 200 through a secondary gas circulation pump 24. The front surface 34 of the interface plate 30 also includes a fifth connector 50 for connection to a recirculation supply duct cavity to return filtered gas from the secondary gas circulation pump 24 to the surgical chamber 20 via a valve-sealed inlet port 200.

[0066] like Figure 4 As best shown, the rear surface 36 of the interface board 30 includes a first circular filter holder 52 having a port 62 for communication with a first connector 42, a second circular filter holder 54 having a port 64 for communication with a second connector 44, a third circular filter holder 56 having a port 66 for communication with a third connector 46, a fourth circular filter holder 58 having a port 68 for communication with a fourth connector 48, and a fifth circular filter holder 60 having a port 70 for communication with a fifth connector 50.

[0067] like Figure 4 As shown, a modular filter unit 72, including a cylindrical tank 74, is housed within a first filter base 52. As described in more detail below, depending on the operating mode, the same filter unit can be easily installed in each of the five mounting areas on the rear surface 36 of the interface plate 30. Those skilled in the art will readily appreciate that the modularity and versatility of these filter units offer benefits and advantages in terms of reduced manufacturing costs, reduced inventory, and ease of assembly. Each modular filter unit 72 is preferably attached to the corresponding filter base by conventional methods known in the art, such as adhesives, ultrasonic welding, rotary welding, and laser welding, or by threaded or interference fits, to facilitate easy replacement of used filter modules.

[0068] The modular tank 74 of the filter unit 72 includes a filter element 76 for filtering the gas flowing through it, and an elastomeric surface seal 78 for sealing a complementary sealing surface (not shown) located in the receiving cavity 32 of the gas delivery device 12.

[0069] Although the filter element 76 of filter unit 72 is shown as a pleated filter element, it is conceivable that the filter element 76 may be selected from a group of different types of filter media, including, for example, pleated filter media, woven polymer mesh filter media, nonwoven polymer mesh filter media, sintered metal filter media, sintered polymer filter media, activated carbon filter media, particulate filter media, etc. Regardless of the material used in the filter unit, it will be a material configured to promote bidirectional, bidirectional gas flow. That is, the filter element 76 in each tank 74 is configured such that it can be readily used to filter clean pressurized gas flow from the outlet side of one of the gas circulation pumps 18, 24 or waste or flue-filled gas flow to the suction side of one of the gas circulation pumps 18, 24.

[0070] like Figure 5 and 6 As best shown, the filter canister 74 of the filter unit 72 also includes an internal reservoir 75 for accumulating any fluid that is inhaled during suction or otherwise aspirated into the canister 74 during surgery. The reservoir 75 preferably includes a mechanism (not shown) for detecting the liquid level within the filter canister 74, such as an optical sensing mechanism as described in commonly assigned U.S. Patent No. 9,067,030, the disclosure of which is incorporated herein by reference.

[0071] Now for reference Figure 7 and 8 It also involves Figure 3 and 4 The diagram illustrates an interface plate 30 of the present invention, adapted and configured for use with a gas delivery device 12 in a charge-only operation mode. In this case, a charge and sensing lumen 82 is attached to a first connector 42 of the interface plate 30. The distal end of the charge and sensing lumen 82 has a conventional Luer-type coupling 92 adapted and configured to connect to a connector 210 of a valve seal inlet device 200 (see [link to diagram]). Figure 1A ).

[0072] Now for reference Figure 9 and 10 The diagram illustrates an interface plate 30 of the present invention, adapted and configured for use with a gas delivery device 12 in an operating mode involving the filling / sensing and exhaust of smoky gas through two separate valve-sealed inlet ports 200. In this configuration, a filling and sensing lumen 82 is attached to a first connector 42 of the interface plate 30, and an exhaust lumen 88 is attached to a fourth connector 48 of the interface plate 30. The distal end of the filling and sensing lumen 82 has a coupling 92 adapted and configured to connect to a connector 210 of the first valve-sealed inlet device 200, and the distal end of the exhaust lumen 88 has a coupling 98 adapted and configured to connect to a connector 210 of the second valve-sealed inlet device 200. Figure 10 As best shown in the diagram, in this embodiment, there are two filter units 72 associated with the rear surface 36 of the interface board 30, one of which is associated with the filter holder 52 and the other with the filter holder 58.

[0073] refer to Figure 11 and 12 The diagram illustrates another embodiment of the interface plate 30 of the present invention, adapted and configured for use with the gas delivery device 12 in an operating mode comprising the return of gas through three separate valve-sealed inlet ports 200. In this configuration, the filling and sensing lumen 82 is attached to the first connector 42 of the interface plate 30, the exhaust lumen 88 is attached to the fourth connector 48 of the interface plate 30, and the recirculation supply lumen 90 is attached to the fifth connector 50 of the interface plate 30.

[0074] The distal end of the filling and sensing cavity 82 has a coupling 92 adapted and configured to connect with the connector 210 of the first valve seal inlet device 200, the distal end of the exhaust cavity 88 has a coupling 98 adapted and configured to connect with the connector 210 of the second valve seal inlet device 200, and the distal end of the recirculation supply cavity 90 has a coupling 100 adapted and configured to connect with the connector 210 of the third valve seal inlet device 200. Figure 12 As best shown in this embodiment, there are three separate filter units 72 associated with the rear surface 36 of the interface plate 30, one associated with filter seat 52, the second with filter seat 58, and the third with filter seat 60.

[0075] Although not explicitly shown herein, it is foreseeable and entirely within the scope of the invention that the interface plate 30 can be adapted and configured for use only in exhaust mode, wherein the distal end of the exhaust duct 88 will be connected to the first valve seal inlet 200, and the distal end of the recirculation supply duct 90 will be connected to the second valve seal inlet 200. In this case, a separate conventional charging unit, distinct from the gas supply device 12, can be used for charging and pressure sensing.

[0076] It is also conceivable, and entirely within the scope of this invention, that regarding Figure 11 and 12 The interface board 30 shown is configured such that the distal ends of the filling and sensing lumen 82 and the recirculation supply lumen 90 can be operatively associated with a dual-tube connector 93 having a Luer-type connector 99 for coupling to the first valve seal inlet port 200, as shown. Figure 23 and 24 As shown in the diagram. In this case, the distal end of the exhaust duct 88 will be connected to the second valve seal inlet port 200.

[0077] Now for reference Figure 13 and 14 This illustrates another embodiment of the interface board 30 of the present invention, adapted and configured for use with a gas delivery device 12 in an operating mode including filling, gas delivery, and gas return of a dual-lumen gas-tight inlet device 400 disclosed in commonly assigned U.S. Patent No. 8,795,223, the disclosure of which is incorporated herein by reference. In this configuration, the filling and sensing lumen 82 is attached to a first connector 42 of the interface board 30, the gas delivery lumen 84 is attached to a second connector 44 of the interface board 30, and the gas return lumen 86 is attached to a third connector 46 of the interface board 30.

[0078] Here, the filling and sensing lumen 82, the gas delivery lumen 84, and the gas return lumen 86 are combined, and their distal ends are all operatively associated with a three-lumen connector 95 of the type disclosed in commonly assigned U.S. Patent No. 9,526,886, the disclosure of which is incorporated herein by reference. The three-lumen connector 95 is adapted and configured to connect to a connector 410 of a dual-lumen gas-tight inlet device 400. In this embodiment, there are three filter units 72 associated with the rear surface 36 of the interface plate 30, one associated with filter seat 52, a second with filter seat 54, and a third with filter seat 56.

[0079] Now for reference Figure 15 and 16 This illustrates another embodiment of the interface board 30 of the present invention, which is adapted and configured for use with the gas delivery device 12 in an operating mode that includes inflating via a valve-sealed inlet device 200, and pressurized gas delivery and exhaust gas return via a single-lumen gas-sealed sleeve needle 300, which will be referred to below. Figure 1B To be discussed in more detail. In this case, the filling and sensing lumen 82 is attached to the first connector 42 of the interface board 30, the gas delivery lumen 84 is attached to the second connector 44 of the interface board 30, and the gas return lumen 86 is attached to the third connector 46 of the interface board 30.

[0080] Here, the distal end of the filling and sensing lumen 82 has a coupling 92 adapted and configured to connect to the connector 210 of the valve seal inlet device 200, while the gas delivery lumen 84 and the gas return lumen 86 are combined together, and their distal ends are all operatively associated with a dual-lumen coupling 97 of the type disclosed in commonly assigned U.S. Patent Application Publication 2017 / 0361084, the disclosure of which is incorporated herein by reference (see Figures 21 to 2 6).

[0081] The dual-lumen connector 97 is adapted and configured to be with Figure 1B The connector 310 of the single-lumen gas-tight access device 300 shown functions similarly to the dual-lumen gas-tight access device 400 disclosed in U.S. Patent No. 8,795,223, except that the dual-lumen gas-tight access device 300 only has a central gas-tight lumen for receiving the instrument channel, and does not have an outer annular lumen surrounding the central lumen through which the filling gas is delivered to the patient's surgical cavity. In all other respects, the device 300 functions similarly to the dual-lumen gas-tight access device 400. In this embodiment, three filter units 72 are also associated with the rear surface 36 of the interface plate 30, one associated with filter seat 52, a second with filter seat 54, and a third with filter seat 56.

[0082] Now for reference Figures 17 to 19 The diagram illustrates a final embodiment of the interface plate 30 of the present invention, which is adapted and configured for use with the gas delivery device 12 in an operating mode including filling, pressurized gas delivery, and exhaust gas return via a dual-lumen gas-tight entry device 400. In this configuration, the filling and sensing lumen 82 is attached to the first connector 42 of the interface plate 30, the gas delivery lumen 84 is attached to the second connector 44 of the interface plate 30, the gas return lumen 86 is attached to the third connector 46 of the interface plate 30, the exhaust lumen 88 is attached to the fourth connector 48 of the interface plate 30, and the recirculation supply lumen 90 is attached to the fifth connector 50 of the interface plate 30.

[0083] Here, the filling and sensing cavity 82, the gas delivery cavity 84, and the gas return cavity 86 are combined together, and their distal ends are operatively associated with a three-cavity connector 95 for connection to a three-cavity connector 410 of a dual-cavity gas-sealed inlet device 400. The exhaust cavity 88 and the recirculation supply cavity 90 have their respective connectors 98 and 100, each adapted and configured to connect to a connector 210 of a corresponding valve-sealed inlet device 200. This embodiment of the interface plate 30, connected to five cavities, is... Figure 1 The configuration of the present invention is shown in the figure.

[0084] like Figure 19 As shown, in this embodiment of the invention, there are five filter units 72 associated with the rear surface 36 of the interface plate 30, one of which is associated with filter seat 52, the second with filter seat 54, the third with filter seat 56, the fourth with filter seat 58, and the fifth with filter seat 60.

[0085] Or, about Figures 17 to 19Although not explicitly shown, the five-lumen configuration is conceivable and entirely within the scope of the invention. The distal ends of the gas delivery lumen 84 and the gas return lumen 86 may be attached to a dual-lumen connector 97, which is adapted and configured to connect to a single-lumen gas-sealed inlet device 300. The distal end of the filling and sensing lumen 82 may be connected to a first valve-sealed inlet device 200. The distal end of the exhaust lumen 88 may be connected to a second valve-sealed inlet device 200. The distal end of the recirculation supply lumen 90 may be connected to a third valve-sealed inlet device 200.

[0086] Within the scope of this invention, it is also conceivable that the interface board 30 of the invention includes a mechanism for transmitting information to a controller 16 in the gas delivery device 12, the information identifying the five lumens and filters attached to the interface board 30, and thereby indicating which specific operating mode must be activated to perform the desired surgical procedure. This mechanism could be a mechanical feature, such as a microswitch that communicates with the controller 16 when the interface board 30 is mounted within a receiving cavity 32 in the front of the gas delivery device 12. Alternatively, the mechanism could be a wireless transmitter 35 on the rear surface 36 of the interface board 30, such as... Figure 4 As shown, for example, an RFID signal transmitter or an NFC signal transmitter transmits information related to the lumen type associated with the interface board 30 to the controller 16 of the gas delivery device 12.

[0087] See Figures 20 to 23 The figure illustrates another embodiment of the interface board configured according to a preferred embodiment of the invention, generally indicated by reference numeral 130. The front surface 134 of the interface board 130 includes a first connector 142 for connection to a filling and sensing lumen, a second connector 144 for connection to a gas delivery lumen, a third connector 146 for connection to a gas return lumen, a fourth connector 148 for connection to a flue gas exhaust lumen, and a fifth connector 150 for connection to a recirculation supply lumen, as shown in… Figure 20 and 21 The best one to see.

[0088] refer to Figure 22 The rear surface 136 of the interface board 130 includes a circular filter holder 154 for communication with connector 144, a circular filter holder 156 for communication with connector 146, a circular filter holder 158 for communication with connector 148, and a circular filter holder 160 for communication with connector 150. Each filter holder is adapted and configured to accommodate... Figure 5 and 6 The filter module 72 is of the type shown.

[0089] like Figure 21 and 22As best shown, interface plate 130 has an integrated filter canister 172 corresponding to the filling path associated with connector 142. This integrated filter canister includes a monolithic filter medium 176 supported in an annular disc 177 for filtering the filling gas delivered to the patient's surgical cavity. It should be understood that the filling path associated with connector 142 is used in almost every embodiment or configuration of the interface plate described herein; therefore, it is advantageous to feature filter canister 172 as a central feature of interface plate 130, while each of the other paths of interface plate 130 will communicate with filter module 72.

[0090] The shield 136 surrounds the entire periphery of the interface plate 130 and forms a mounting surface for a wireless transmitter 135, such as an RFID signal transmitter or an NFC signal transmitter, which identifies which of the five lumens is attached to the interface plate 130.

[0091] Although this disclosure has been shown and described with reference to preferred embodiments, those skilled in the art will readily understand that changes or modifications can be made without departing from the scope of this disclosure.

Claims

1. A filter tube assembly for connecting a surgical gas delivery device to a surgical access device, comprising: a) An interface plate adapted and configured to engage with the surgical gas delivery device and having a front surface and a rear surface; b) A plurality of individual tube connectors extending from the front surface of the interface board; as well as c) A plurality of individual filter elements extending from the rear surface of the interface plate, wherein each individual filter element is enclosed within a modular filter canister disposed on the rear surface of the interface plate, and wherein each individual tube connector is in direct communication with the corresponding individual filter element via the interface plate, wherein the entire periphery of the interface plate is surrounded by a shield to form a mounting surface for a wireless transmitter configured to identify which of the plurality of individual tube connectors has a flexible tube attached thereto.

2. The filter tube assembly according to claim 1, wherein, Five tube connectors extend from the front surface of the interface plate and four cylindrical pleated filters extend from the rear surface of the interface plate.

3. The filter tube assembly according to claim 2, wherein, Each of the five tube connectors is connected to a flexible tube.

4. The filter tube assembly according to claim 3, wherein, The distal ends of two of the five flexible tubes are connected to a double-lumen connector adapted and configured to connect with a first surgical access device.

5. The filter tube assembly according to claim 3, wherein, The distal ends of three of the five flexible tubes are connected to a three-lumen connector adapted and configured to connect with a second surgical access device.

6. The filter tube assembly according to claim 4, further comprising a first surgical access device connected to the dual-lumen connector.

7. The filter tube assembly according to claim 5 further includes a second surgical access device connected to the three-lumen connector.

8. The filter assembly according to claim 5 further includes a surgical gas delivery device coupled to the interface plate, wherein, The surgical gas delivery device includes a gas circulation pump and a filling device.

Images