Filtered tubing set for use with a gas delivery device for performing an endoscopic surgical procedure in a surgical cavity - Patents.com

Abstract

A system for performing an endoscopic surgical procedure within a surgical cavity of a patient is provided. [Solution] The surgical cavity includes a gas delivery device (12) configured to deliver a flow of pressurized gas to a gas delivery lumen tube (34) extending therefrom, a gas seal module (40) communicating with the distal end of the gas delivery lumen tube and configured to create a gas seal within a gas seal lumen tube (44) extending therefrom, and an access port communicating with the distal end of the gas seal lumen tube to provide access for sealed instruments to the surgical cavity and maintain a stable pressure within the surgical cavity.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation of U.S. Patent Application Serial No. 16 / 015,462, filed June 22, 2018. This application claims the benefit of priority to US Pat. No. 6,399,433, the disclosure of which is incorporated herein by reference in its entirety. Be absorbed.

[0002] FIELD OF THEINVENTION The present invention relates to endoscopic surgery, and more particularly to a method for maintaining stable pressure within a surgical cavity. A gas supply is provided within a lumen extending from the lumen which communicates with a surgical access port mechanically sealed to the lumen. an internal or remote gas seal module for generating a gas seal in an endoscopic surgical procedure; The present invention is directed to a surgical gas delivery device for use in a surgical procedure. [Background technology]

[0003] Commonly assigned U.S. Patent Nos. 7,854,724 and 8,795,223 A hermetically sealed surgical access device or trocar, such as that disclosed herein, is In common with U.S. Patent Nos. 8,715,219, 8,961,451, and 9,295 Multimode gas delivery systems, such as those disclosed in US Pat. Nos. 9,490 and 9,375,539, are well known in the art. The use of endoscopic devices in combination with endoscopic delivery devices has been shown to have a number of advantages. These advantages include: provides valve-free access to surgical cavities (e.g., abdominal or thoracic cavities), facilitates smoke evacuation, and and stable maintenance of pressure within the surgical cavity, as well as several medical and clinical advantages. include.

[0004] The combination of these devices creates a gas seal area within the body of the trocar. a gas delivery device for receiving pressurized gas from the gas delivery device; The present invention provides a surgical system that is dependent on the presence of an annular jet assembly. is disclosed in commonly assigned U.S. Pat. No. 9,907,569, and is a gas seal area. Similar to a nozzle that forces pressurized gas into a narrow passage that increases the gas's velocity to produce a It is designed to provide a static mechanism.

[0005] Commonly assigned U.S. Patent Nos. 9,387,295 and 9,387,296, among others. Also, in commonly-owned U.S. Patent Application Publication No. 2016 / 0287817, Position the jet assembly (or similar nozzle design) away from the trocar device and away from the gas. a filter with an associated filtered tube configured for operation in conjunction with a drug delivery device; The proposed method is to move the filter cartridge housing into the hermetic filter housing. Allows the use of more conventional commercially available access devices instead of the blocked trocars I did.

[0006] Position the annular jet assembly (or similar nozzle design) so that it is flush with the filtered tube. into the tube of the set, or into the housing of the multimode gas delivery device itself. It has been determined that further advantages can be achieved by increasing the The technology works with a number of new proprietary and commercially available end effectors and access devices. Indeed, in certain surgical scenarios, the There may be a requirement that all access ports be of one type. For example, these may be: Robotic-assisted surgery that only accommodates certain types or brands of reusable cannulas May include surgery.

[0007] Another advantage of the gas management system of the present invention is that it is market or cost driven, allowing hospitals to For example, by financial arrangement, the patient may be required to use a specific brand of disposable or reusable cannula. In these embodiments, the system of the present invention has a cost-saving policy of using The surgeon can now enjoy improved pressure stability and comfort without having to replace one of the low-cost access ports. This makes it possible to obtain smoke evacuation functions. Summary of the Invention

[0008] The present invention provides a new and useful system for performing endoscopic surgical procedures within a surgical cavity. The gas delivery lumen is adapted to deliver a flow of pressurized gas to a gas delivery lumen extending therefrom. a gas delivery device configured to deliver gas to a patient; a gas passage extending from a distal end of the gas delivery lumen; a gas seal module configured to generate a gas seal within a surgical lumen; To provide mechanically sealed instrument access to the surgical cavity and to maintain a stable pressure within the surgical cavity. The gas seal lumen includes an access port in communication with the distal end of the gas seal lumen tube so as to allow the gas seal lumen tube to be inserted into the gas seal lumen. a valve seal proximal to provide mechanically sealed instrument access to a surgical cavity; Includes position housing.

[0009] The system further includes a gas return lumen tubing extending from the gas seal module back to the gas delivery device. The gas delivery device delivers pressurized gas to the gas delivery lumen tube and returns gas from the gas return lumen tube. The gas delivery device includes a pump for aspirating the gas. The gas delivery and return lumen tubes are disposed within the gas delivery device. The filter assembly is in communication with the filter assembly sized and configured to receive the filter in the cavity.

[0010] The system further includes a device for delivering insufflation gas to the second access port through the air insufflation lumen tube. The gas delivery device includes an insufflation device. The access port is a surgical access port for a sealed instrument. A mechanically sealed proximal housing for providing access to the surgical cavity.

[0011] Preferably, the gas seal module is adapted to deliver gas from the gas delivery lumen tube to generate the gas seal. a housing supporting a jet assembly for receiving pressurized gas; The gas expended in generating is returned to the pump in the gas delivery device through a gas return lumen tube. In one embodiment of the present invention, the gas seal module is adapted to separate the gas from the atmosphere into the surgical cavity. A vented handpiece is provided to facilitate the incorporation of air into the surgical cavity and the release of gas from the surgical cavity to the atmosphere. The gas seal module also communicates with a two-way filtration element to filter out entrained gas. It is also contemplated that the device may filter air and / or gases released from the surgical cavity to the atmosphere. There are.

[0012] In one embodiment, the housing of the gas seal module includes a gas delivery lumen tube and a gas return lumen tube. The connection portion of the gas seal lumen tube is arranged perpendicular to the connection portion of the gas seal lumen tube. In this embodiment, the housing of the gas seal module is a gas delivery lumen tube and a gas return lumen tube. is configured to be aligned with the connection of the gas seal lumen tube. The housing of the gas seal module is a gas seal module having a gas delivery lumen tube and a gas return lumen tube connected to each other. The seal lumen is configured to be disposed parallel to the connection portion of the seal lumen tube.

[0013] In these embodiments, the gas delivery and return lumen tubes may be arranged in a side-by-side or concentric configuration. It is envisioned that the gas seal module may be configured to connect to the housing of the gas seal module in a gas seal configuration. Alternatively, the gas seal module may be a proximal gas seal connected to the gas delivery lumen tube and the gas return lumen tube. a proximal subassembly and a distal subassembly connected to a gas seal lumen tube. The housing assembly may include a housing assembly having a plurality of portions.

[0014] The present invention is also directed to a system for performing an endoscopic surgical procedure within a body cavity, It includes a gas delivery lumen having a pump for delivering pressurized gas to a gas delivery lumen tube extending therefrom. and an insufflation device extending therefrom for delivering insufflation gas to the insufflation lumen tube. The gas seal module is connected to a distal end of the gas delivery lumen tube outside the gas delivery device. The gas seal lumen is configured to pass through the gas seal lumen and to create a gas seal within the gas seal lumen tube extending therefrom. The gas seal sleeve has a proximal end portion in communication with the distal end portion of the gas seal lumen tube, and a tubular access port configured to be coaxially mounted within the valve sleeve; Providing mechanically sealed instrument access to a surgical cavity in communication with the distal end of the air lumen tube The valve seal proximal housing has a

[0015] The annular channel allows the gas seal lumen tube to communicate with the surgical cavity to maintain a stable pressure within the surgical cavity. A seal ring is formed between the inner surface of the sleeve and the outer surface of the access port to retain the seal ring. The annular channel is provided with a proximal end portion of the gas seal sleeve for sealing the proximal end of the annular channel. and a plurality of circumferentially extending grooves for facilitating communication between the annular channel and the surgical cavity. The spaced apart flow passages are formed in a distal end portion of the gas seal sleeve. The system further comprises a gas A gas return lumen tube is included that runs from the seal module back to the pump in the gas delivery device. The lumen tube and the gas return lumen tube are sized and configured for receipt within a gas delivery device. The filter assembly is in communication with the filter.

[0016] The present invention also provides a method for providing a gas seal sleeve, a valve seal trocar, and a gas seal sleeve. and mounting the valve seal trocar within the valve seal sleeve. introducing a gas seal sleeve together with the catheter into a surgical cavity of the patient, The present invention is directed to a novel method of accessing a surgical cavity. The method further comprises: connecting a gas seal lumen tube adapted for bidirectional gas flow in and out; and The step of connecting the trocar to the air delivery lumen tubing and the sensing lumen.

[0017] The present invention also provides a system for performing an endoscopic surgical procedure within a surgical cavity. a pump configured to deliver pressurized gas to an internal gas delivery lumen tube extending from the pump; The gas seal module is adapted to receive a gas from a gas delivery device. An internal gas seal is housed within the delivery device and communicates with and extends from the gas delivery lumen. The gas seal lumen tube is configured to generate a gas seal within the gas delivery device. a gas seal lumen tube extending outwardly from the valve seal and adapted and configured to communicate with the gas seal lumen tube extending outwardly from the valve seal; The surgical access port provides mechanically sealed instrument access to the surgical cavity and is The gas seal lumen is in communication with the distal end of the gas seal lumen tube to maintain a stable pressure within the surgical cavity.

[0018] The system further includes a gas seal module extending from the gas seal module and used to form the gas seal. Includes an internal gas return lumen tube for recirculating gas back to the pump within the gas delivery device. The gas delivery device further includes a gas delivery lumen tube for delivering gas to the second valve seal access port. An insufflation device for delivering gas is included.

[0019] In this embodiment of the invention, the gas seal module preferably comprises: At least one radially inwardly angled nozzle is formed therein for An integral assembly formed by a metal disk and a gas seal cavity tube It includes a cylindrical bore to accommodate the ingress and egress of gas from the gas seal lumen tube.

[0020] At least one radially inwardly angled nozzle is offset from the central axis of the disk. It is envisioned that the disk may be radially spaced from the cylindrical bore into which it may be set. A cylindrical bore is formed therein and radially spaced from the bore, which may be offset from the central axis of the cylinder. Alternatively, the disk may have a plurality of radially inwardly angled nozzles. A plurality of radially inwardly extending holes formed therein surround a cylindrical bore that may be aligned with a central axis of the cylinder. The nozzle may be angled toward the center.

[0021] The present invention also provides a gas delivery device for performing an endoscopic surgical procedure within a surgical cavity. 11. A tubing set for use with a first and second fluid passage formed therein, a filter cartridge assembly having a filter cartridge extending therefrom; a first passage communicating with the cavity for maintaining a stable pressure therein and facilitating smoke evacuation; a first lumen tube extending from the filter cartridge for delivering insufflation gas to the surgical cavity; A second lumen is included in communication with the second flow path for sensing pressure.

[0022] The fitting includes a first fitting for connecting with the first mechanically sealed access port. a second mechanically sealed fitting operatively associated with the distal end of the lumen tube; The distal end of the second lumen tube is operably associated with the distal end of the second lumen tube for connection with the associated access port. at least one filter element disposed within the first flow passage of the filter cartridge; and and / or at least one filter disposed in the second flow path of the filter cartridge. There may be elements.

[0023] These and other features of the gas circulation system and the system of the present invention are illustrated in the following drawings: The detailed description of the preferred embodiments, taken together with the brief description, will provide a good understanding of the present invention. will be more readily apparent to traders. [Brief description of the drawings]

[0024] Those skilled in the art will appreciate that, without undue experimentation, the gas circulation system and sealed surgical device of the present invention can be As such, it will be readily apparent to those skilled in the art how to manufacture and use the surgical access device. The embodiments are described in detail below with reference to the drawings.

[0025] [Figure 1] FIG. 1 is a diagram of a gas delivery system of the present invention during an endoscopic surgical procedure performed within a patient's abdominal cavity, the system including a gas delivery device, gas delivery and return lines extending between the gas delivery device and a remote gas seal module, a first valve seal access port in communication with a gas seal lumen tube attached to the gas seal module, and insufflation and detection lines extending between the gas delivery device and a second valve seal access port. [Diagram 2]2 is a perspective view of the filtered tubing set, remote gas seal module, and valve seal access port of the gas delivery system illustrated in FIG. [Diagram 3] 3 is an exploded perspective view of a portion of the gas delivery system of FIG. 1 illustrating connections of gas delivery and return lines, a remote gas seal module, a gas seal lumen tube, and a first valve seal access port. [Figure 4] 4 is an exploded perspective view of the gas seal module of the gas delivery system shown in FIG. 1 with parts separated for ease of illustration. [Diagram 5] 5 and 6 are top and bottom perspective views of a nozzle tube element forming part of the gas seal module shown in FIG. [Figure 6] 5 and 6 are top and bottom perspective views of a nozzle tube element forming part of the gas seal module shown in FIG. [Figure 7] 7 and 8 are cross-sectional views of the gas seal module taken along lines 7-7 and 8-8 of FIG. [Figure 8] 7 and 8 are cross-sectional views of the gas seal module taken along lines 7-7 and 8-8 of FIG. [Figure 9] FIG. 9 is a diagram of another embodiment of a filtered tubing set for use with the gas delivery device shown in FIG. 1, including a filter cartridge configured to be received in the gas delivery device, a remote gas seal module having a two-part housing, a valve seal access port in communication with a gas seal lumen tube attached to the gas seal module, and gas delivery and return lines extending between the air supply and detection lumen tubes in communication with another valve seal access port. [Figure 10] FIG. 10 is an enlarged perspective view of a portion of the gas delivery system of FIG. 9 illustrating the gas seal lumen tubes extending between the gas seal module and the first valve seal access port, and between the air delivery lumen tube and the detection lumen tube and the second valve seal access port. [Figure 11]FIG. 11 is an enlarged perspective view of the remote gas seal module shown in FIG. [Figure 12] FIG. 12 is an exploded perspective view of the remote gas seal module shown in FIG. 9, with parts separated for ease of illustration, including an annular jet assembly for creating a gas seal within a gas seal lumen tube extending therefrom. [Figure 13] 13 is an exploded perspective view of an annular jet assembly housed within the gas seal module of FIG. 12. FIG. [Figure 14] FIG. 14 is a diagram of another embodiment of a filtered tubing set for use with the gas delivery device shown in FIG. 1, including a filter cartridge configured to be received in the gas delivery device, a remote gas seal module, a valve seal access port in communication with a gas seal lumen tube attached to the gas seal module, and gas delivery and return lines extending between the air inlet and sensing lumen tubes in communication with another valve seal access port. [Figure 15] FIG. 15 is an enlarged perspective view of a portion of the gas delivery system of FIG. 14 illustrating the gas seal lumen tubes extending between the gas seal module and the first valve seal access port, and between the air delivery lumen tube and the detection lumen tube and the second valve seal access port. [Figure 15a] FIG. 15a is a localized view of the connector with the gas delivery and return lines separated from the fittings on the gas seal module. [Figure 16] 16 and 17 are cross-sectional views taken along line 16-16 of FIG. 15 illustrating the interior of the remote gas seal module and the connection points of the gas delivery and return lumen tubes. [Figure 17] 16 and 17 are cross-sectional views taken along line 16-16 of FIG. 15 illustrating the interior of the remote gas seal module and the connection points of the gas delivery and return lumen tubes. [Figure 18]FIG. 18 is a perspective view of a surgical access assembly constructed in accordance with a preferred embodiment of the present invention including a gas seal sleeve having a proximal end portion in communication with a distal end portion of a gas seal lumen tube, and a valve seal tubular access port configured for coaxial reception within the sleeve. [Figure 19] 19 is an exploded perspective view of the surgical access assembly shown in FIG. 18 including the valve seal tubular access port separated from the gas seal sleeve. [Figure 20] 20 is a perspective view of the filtered tubing set of FIG. 14 in conjunction with the surgical access assembly of FIG. 18. [Figure 21] FIG. 21 is an exploded perspective view of the filtered tubing set shown in FIG. 20 with parts separated for ease of illustration. [Figure 22] FIG. 22 is a cross-sectional view taken along line 22-22 of FIG. [Diagram 23] 23 is a local plan view of the distal end portion of the surgical access assembly shown in FIG. [Figure 24] FIG. 24 is a diagram of another gas delivery system configured in accordance with a preferred embodiment of the present invention, where the gas delivery device includes an internal gas seal module in communication with a gas seal lumen tube extending from the filter cartridge to a valve seal access port, and also includes an air delivery lumen tube and a sensing lumen tube extending from the filter cartridge to a second valve seal access port. [Diagram 25] 25 is a perspective view of a filtered tubing set employed in the gas delivery device of FIG. 24 having a valve seal access port associated therewith. [Figure 26] FIG. 26 is a localized perspective view of the interior of the gas delivery device shown in FIG. [Figure 27] FIG. 27 is a cross-sectional view taken along line 27-27 of FIG. [Figure 28] FIG. 28 is an exploded perspective view, with parts separated for ease of illustration, of the internal gas seal module positioned within the gas delivery device shown in FIG. 24. [Figure 29] FIG. 29 is a schematic diagram of the gas delivery device of FIG. 24 with associated gas flow paths illustrated. [Diagram 30] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 31] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 32] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 33] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 34] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 35] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Diagram 36] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. [Figure 37] 30-37 illustrate four different embodiments of the internal gas seal module shown in FIG. 28 and one nozzle disk for creating a gas seal. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Reference is now made to the drawings in which like reference numerals identify analogous structural elements and features of the present invention. and more particularly, for performing an endoscopic surgical procedure within a surgical cavity of a patient. A gas circulation system for performing laparoscopic surgical procedures within the abdominal cavity is illustrated in FIG. , which is constructed in accordance with a preferred embodiment of the present disclosure and is generally designated by the reference numeral 10. Those skilled in the art will appreciate that the gas circulation system 10 of the present invention can be used extrathoracically within the thoracic cavity of a patient. Performs endoscopic surgical procedures, such as transesophageal and transanal surgical procedures, as well as endoscopic surgical procedures It will be readily apparent that the present invention can be used to

[0027] Referring to FIG. 1, the gas circulation system 10 of the present invention is a programmable multi-mode It is specifically designed to cooperate with the gas delivery device 12. This type of gas delivery device 12 is described, for example, in commonly assigned U.S. Pat. No. 9,375,539, The entire disclosure of which is incorporated herein by reference. A graphical user interface 14 for configuring the meter, and a patient 20 A pump 16 is included to facilitate circulation / recirculation of pressurized gas to the surgical cavity 18. The gas delivery device 12 delivers insufflation gas to a surgical cavity 18 of a patient 20 via an internal insufflation system 15. The gas may be delivered to a portable source 22 of surgical gas for delivery to the The gas delivery device 12 may be supplied from a stationary source.

[0028] With continued reference to FIG. 1 in conjunction with FIG. 2, the system 10 operates with a gas delivery device 12. The filter tube set 30 is operably associated with the filter tube set 30. Tube set 30 is described in commonly assigned U.S. Pat. No. 9,526,849. The present invention includes a disposable filter cartridge 32 of the type disclosed herein, the entire disclosure of which is incorporated herein by reference. The gas delivery lumen tube 34 and the gas return lumen tube 36 are connected to the filter cartridge 3. 2 and a remotely located gas seal module 40, which is described in more detail below. The first valve seal access port 42 is connected to a gas seal lumen tube 44 through which gas is passed. The seal module 40 communicates with the air delivery line and the detection line 46. The connector 43 extends between the ridge 32 and the second valve seal access port 48. A distal end of the gas seal lumen tube 44 for mating with a fitting on the first access port 42. The connector 47 is associated with a fitting on the second access port 48. Associated with the distal ends of the air delivery and sensing lines 46 for mating.

[0029] Referring now to FIG. 3, gas delivery and return lumen tubes 34 and 36, gas seal lumen The remote gas seal module, together with the tube 44 and the first valve seal access port 42, access port 42 and a gas delivery device 12. In general, the remote gas seal module 40 maintains a stable pressure and provides A gas sealed cavity tube is provided to facilitate evacuation of smoke within the surgical cavity 18 of the patient 20 during a surgical procedure. 44 to create a gas seal that extends to first valve seal access port 42. It is adapted and configured as follows:

[0030] Referring to FIG. 4, the remote gas seal module 40 includes a generally cylindrical proximal housing portion. 50 and an elongated tubular stem portion 52 extending axially from proximal housing portion 50. The proximal housing portion 50 includes an axially offset distal end for communicating with the gas delivery lumen 34. an inlet port 54 and an adjacent axially offset gas return lumen tube 36 for communication therewith; Associated with the end cap 55 is an end cap having a set exit port 56 .

[0031] With continued reference to FIG. 4 in conjunction with FIGS. 5 and 6, the gas seal module 40 is The nozzle further includes a nozzle body sandwiched between the housing portion and the end cap. Pressurized gas from the pump 16 of the gas delivery device 12 is directed through the gas delivery lumen 34 and the end cap 36. through the inlet 54 of the cup 55 to generate a gas seal within the gas seal module 40. 1 and returns to the pump 16 via the crescent shaped inlet plenum 62a and the gas return lumen tube 36. 5, which is used to generate a gas seal within the gas seal module 40 through an outlet 56 for The outlet plenum 62b defines a crescent shaped outlet plenum 62b for receiving the spent gas. The crescent-shaped plenums 62a and 62b are connected to respective crescent-shaped gas conduit channels 63a and 63b. and 63b.

[0032] The nozzle body 60 of the gas seal module 40 further includes a central gas transport plenum 64. 62a and 62b, which are open to the atmosphere at both ends and are disposed between the inlet plenums 62a and 62b. The nozzle body 60 also includes a distally extending nozzle tube that communicates with a gas transport plenum 64. The nozzle tube 65 includes a central bore 70 that communicates with the gas transport plenum 64. 2. The gas seal lumen 44 has a bidirectional venting passage 46 for facilitating gas exchange in and out of the gas seal lumen 44. The gas exchange includes, but is not limited to, gas from the atmosphere into the surgical cavity 18. This includes venting of gas from the surgical cavity 18 to the atmosphere to relieve air entrapment and overpressure. The outer periphery of the nozzle tube 65 includes a plurality of circumferentially spaced apart land areas 66. , which accelerates the pressurized gas delivered from the gas delivery lumen tube 34 to the gas seal module 40. circumferentially spaced apart pairs of circumferentially spaced apart grooves for forming a gas seal within the gas seal lumen tube 44. 4. The gas jet 68 is embedded in the cavity 62 .

[0033] With continued reference to FIG. 4 in conjunction with FIGS. 7 and 8, the proximity of the gas seal module 40 The housing portion 50 includes a gas inlet channel 63 in an inlet plenum 62a of the nozzle body 60. a central cylindrical plenum region 72 communicating with the gas return plenum 62b; The annular plenum region 74 includes a surrounding annular plenum region 74 that communicates with the channel 63b. , including a plurality of circumferentially spaced gas return ports 75.

[0034] Nozzle bore 76 is formed within central plenum region 72 and is best seen in FIGS. As can be seen, the nozzle tube 65 of the nozzle body 60 is, as described above, The radially outer boundaries of the circumferentially spaced jets 68 embedded in the outer periphery of the tube 65. The nozzle bore 76 is sized and configured to engage within the nozzle bore 76 to form a

[0035] Referring to FIG. 4 in conjunction with FIGS. 7 and 8, the proximal housing of the gas seal module 40 An elongated tubular stem portion 52 extends axially from the stem portion 50 through a gas return port 75. 7, and directs the spent gas used to create the gas seal into the annular plenum region 74. a proximal flange portion housing a plurality of circumferentially spaced fins 82 configured to 80. The tubular stem portion 52 further includes circumferentially spaced jets 6 8, which defines an interior region 85 of the gas seal module 40. The stem portion 52 also includes a gas seal 84, as best seen in FIG. a distal tube fitting 86 sized and configured to connect with the lumen tube 44. nothing.

[0036] 9-12, another frame constructed in accordance with a preferred embodiment of the present invention is shown. A filtered tubing set is shown, generally designated by the reference numeral 130. and the gas seal delivery lumen tube and the gas return lumen tube are offset from the gas seal lumen tube; The remote seal module 40 differs from the remote seal module 40 described above in that it is The gas seal module 140 is included.

[0037] More specifically, the tube set 130 includes a filter cartridge 132, a gas delivery lumen, The tube 134 and the gas seal module 140 extend between the filter cartridge 132 and the gas seal module 140. 1. A gas return lumen tube 136, a gas seal module 140, and a first valve seal access A gas seal lumen tube 144 extends from the port 142 to the filter cartridge 132. an air delivery lumen 146 extending from the first valve seal access port 148 to a second valve seal access port 148; In this embodiment of the invention, the gas seal module 140 includes a gas delivery lumen tube 134 and the gas return lumen pipe 136 is parallel to the gas seal lumen pipe 144, It is configured to be positioned offset therefrom.

[0038] 11 and 12, the remote gas seal module 140 is in a first configuration. The two parts, consisting of a component 152 and a subassembly 157, are mechanically interconnected. The first component 152 includes a housing assembly 145 having a gas delivery lumen 134 and and gas return lumen tube 136. Subassembly 157 comprises: Connected to and in communication with gas seal lumen tube 144 .

[0039] More specifically, component 152 of the two-part housing 145 includes a gas delivery lumen. An inlet port 154 for direct communication with tube 134 and a gas return lumen tube 136 The two-part housing 145 has an adjacent outlet port 156 for communication. The subassembly 157 includes a body portion 155 defining an interior plenum chamber 159; A distally extending tube sized and configured to connect with gas seal lumen tube 144. Includes fitting 186.

[0040] The interior plenum chamber 159 of the body portion 155 is a two-piece relay of the type shown in FIG. The nozzle assembly 190 is dimensioned and configured to receive the nozzle assembly 190, which is described in commonly assigned US Pat. No. 9,907,569 to the same assignee, the entire disclosure of which is incorporated herein by reference in its entirety. Generally, as shown in FIG. The assembly 190 includes an upper member 192 having an O-ring seal 193, and an O-ring It consists of a lower ring member 194 having a seal 195 .

[0041] The jet assembly 190 receives pressure from the gas delivery lumen tube 134 through the inlet port 163. 155. The gas seal 155 is configured to receive gas and create a gas seal within a distal throat region 184 of the body portion 155. The throat region 184 functions to accelerate the gas as shown in FIG. The gas seal maintains a stable pressure and pressure distribution in the surgical cavity 1 of the patient 20 during the endoscopic surgical procedure. 8, the length from the gas seal lumen tube 144 to the access port 142 is The pressure stabilizer creates a stable pressure barrier that maintains a stable pressure throughout the

[0042] As best seen in FIG. 12, circumferentially spaced guide fins 182 guide the throw. The gas used to create the gas seal in the outlet region 184 is discharged through the outlet fitting 17. 1. The plenum of the body portion 155 is adapted to guide the gas flow through the gas return lumen 136 via the The component 152 also includes a gas seal lumen 144 that is provided in and out of the chamber 159. The gas exchange includes, but is not limited to, ventilation pathways 188 that facilitate gas exchange through the A surgical cavity 18 for reducing air ingress from the atmosphere into the surgical cavity 18 and overpressure. This includes gas release from 18 to the atmosphere.

[0043] 14-17, a further embodiment constructed in accordance with the present invention is shown. Illustrated in FIG. 2 is another filtered tubing set, generally designated 230. 1, a remote gas seal module different from each of the remote seal modules described above. More specifically, the tube set 230 includes a filter cartridge 240. 32, gas delivery lumen tube 234, and filter cartridge 232 and gas seal module 240, a gas return lumen tube 236 extending from the gas seal module 240 to the first A gas seal lumen tube 244 extending to the lubricant seal access port 242 and a filter cartridge an air delivery lumen tube extending from the trough 232 to the second valve seal access port 248; The detection lumen 246 is included.

[0044] In this embodiment of the invention, the gas seal module 240 includes the gas delivery lumen tube 234 and The gas delivery and return lumen tubes 236 are disposed perpendicular to the outlet of the gas seal lumen tube 244. The lumen tube 234 and the gas return lumen tube 236 are arranged in a concentric arrangement within the housing of the gas seal module 240. 2 is configured to be positioned to connect with the housing 250.

[0045] More specifically, gas delivery lumen tubing 234 and gas return lumen tubing 236 are best seen in FIG. As can be seen, the gas seal module 242 is connected to the gas seal lumen tube 244 in a direction perpendicular to the gas seal lumen tube 244. A correspondingly configured fitting extending from the housing 250 of the tool 240. 245. This type of connector is disclosed in commonly assigned U.S. Patent Application Publication No. 2017 / 003366. No. 361,084, the entire disclosure of which is incorporated herein by reference. The housing 250 of the gas seal module 240 further provides bidirectional gas flow to and from the atmosphere. Louvers to facilitate exchange (i.e., for air entrainment and overpressure relief through lumen tube 244) 16 and 17, includes a gas seal lumen 280. It is arranged in a row with 244.

[0046] In this embodiment of the invention, the gas seal module 240 is 13 to create a gas seal with the interior region 285 of the port portion 284. A two-piece ring jet of the type described in commonly assigned U.S. Pat. No. 9,907,569. The pressure sensor 290 includes a pressure sensor 292 that maintains a stable pressure and is adapted to monitor the pressure on the patient 20 during the endoscopic surgical procedure. A gas seal lumen tube is provided to the access port 242 to facilitate evacuation of smoke from the surgical cavity 18. 244。 244 creates a stable pressure barrier that maintains a stable pressure throughout the length.

[0047] 18 to 23, for example, the filter-equipped tube set shown in FIG. It is designed to be used in conjunction with one of the previously mentioned filtered tubing sets, such as the 230. A fitted and configured surgical access assembly 300 is shown. The gas seal assembly 300 mainly comprises a tubular gas seal sleeve 342 and a valve seal accessory. The tubular gas seal sleeve 342 includes a gas port 348 for sealing the gas in the tube set 230. A fitting 34 for communicating with a connector 247 on the distal end portion of the seal lumen tube 244. 7. The valve seal access port 348 is formed by a tubular sleeve. 342 and configured for coaxial mounting within the bore 342, and for mechanically sealed surgical instruments. provides access to the lumen 18 and the air delivery and detection lumens 246 of the tubing set 230; It has a fitting 349 for communicating with the connector 249 on the distal end.

[0048] As best seen in FIGS. 22 and 23, the access port 348 is duct for providing airtight access to the surgical cavity 18 through a central lumen tube 369 of 348. It has a proximal housing 365 that houses a cubile seal 367. With particular reference to FIG. , a central lumen 369 provides the air delivery and detection lumens for the system 300, and a gas seal lumen A tube 244 communicates with the surgical cavity 18 to maintain a stable pressure and facilitate evacuation of smoke within the surgical cavity 18. An elongated annular channel 353 is in communication with the inner periphery of the gas seal sleeve 342 so as to It is formed between the outer circumferential surface of the port 348 .

[0049] A seal ring 355 is fitted to sleeve 34 to seal the proximal end of annular channel 353. 2, as best seen in FIG. 23, is associated with a proximal end portion 343 of annular channel 3 a plurality of circumferentially spaced channels 3 for facilitating communication between the surgical cavity 53 and the patient's surgical cavity; 57 is formed on a distal end portion 359 of the gas seal sleeve 342, thereby It maintains a stable pressure within the surgical cavity and facilitates smoke evacuation during endoscopic surgical procedures.

[0050] In use, the access assembly 300 is used to access the surgical cavity 18 during an endoscopic surgical procedure. To access the valve seal port 348, the valve seal port 348 must first be installed in the gas seal sleeve 342. The gas seal sleeve 342 along with the valve seal port 348 is then attached to the patient 2. 0 into the surgical cavity 18. The angled distal edge 363 of the valve seal port 348 , which aids in percutaneous introduction of the assembly 300, as is well known in the art. This is accomplished using a typical obturator or introducer placed within the endoscopic cavity.

[0051] The method further comprises attaching a fitting 247 on the end of the gas seal lumen tube 244 to a gas seal lumen 246. The fitting of the sleeve 342 is adapted for bidirectional gas flow into and out of the sleeve 342. 347 and fittings on the ends of the air delivery and detection lumens 246. Step 249 connects fitting 249 to fitting 349 of valve seal port 348. When a metal access device is used with the system, the sleeve 342 includes I believe it needs to be grounded to prevent electric shock resulting from capacitive coupling. It is determined.

[0052] Referring now to FIG. 24, a specific gas A gas delivery system 400 is shown. The gas delivery system 400 is an external remotely located gas delivery system as described above. In contrast to the gas seal module provided in the The gas delivery device 412 also includes a gas delivery device 412 for setting operating parameters. a graphical user interface 414 for receiving insufflation gas from a gas source; An internal insufflation system 415 for delivering the gas to the surgical cavity of the patient, and an internal gas seal 4. The system includes a pump 416 for facilitating the circulation / recirculation of pressurized gas to the flow module 440. The insufflation device 415 and the gas seal module 440 are shown in FIG. 10 and 11 communicate with a unique filtered tubing set 430 .

[0053] Referring to FIG. 25, the filtered tube set 430 includes a gas seal lumen 444 and and a filter cartridge 432 through which the air delivery and detection lumen tubes 446 extend. The seal lumen tube 444 extends from the filter cartridge 432 to the first valve seal access port. 442, and the air delivery lumen tube and the detection lumen tube 446 are connected to the second valve seal access port 442. The internal gas seal module 440 includes a gas seal lumen tube 444 extending from the gas seal lumen tube 448 to the A stable pressure is maintained through the endoscope to the first access port 442 to maintain a stable pressure. A gas that creates a stable pressure barrier to facilitate smoke evacuation within a patient's surgical cavity during a surgical procedure. Generate a seal.

[0054] 26-27 in conjunction with the schematic diagram of FIG. 29, the housing of the gas delivery device 412 is The inside of ring 413 is shown, which is internally sealed by internal gas seal tube 425. A cartridge of a filter tube set 430 in communication with a gas seal module 440. The filter cartridge includes a receiving cavity 417 for removably receiving the ridge 432. The edge 432 includes a first filter element 43 for filtering the insufflation gas flow to the insufflation conduit 446. 1, and a second filter element for filtering gas entering and exiting the gas seal lumen tube 444. 433. The filter cartridge 432 is a replaceable and disposable tube set. Although it has been described as being part of the filter element 430, as shown in FIG. One or both of the gas delivery devices 412 and 433 may be connected to the housing 41 3 may be in the form of a removable filter element attached to an internal compartment within the This is fully contemplated and within the scope of the present disclosure (see, for example, internal filter 457).

[0055] An internal air delivery tube 419 extends between the air delivery device 415 and the receiving cavity 417. An internal gas delivery conduit 421 extends from the high pressure outlet side of the pump 416 to the gas seal module 4 40, and an internal gas return conduit 423 extends to the inlet side of the gas seal module 440. The inlet or suction side of the pump 416 extends between the inlet or suction side of the pump 416 .

[0056] Referring to FIG. 26 in conjunction with FIG. 28, the gas seal module 440 accommodates gas exchange. A gas supply is provided on an upright bracket 427, including a louvered vent plate 429 for The delivery device 412 is supported by a housing 413, and gas exchange is performed by, but not limited to, , air from the atmosphere into the gas seal module 440 and the gas seal module 44 0 to the atmosphere. The configuration is from the housing 450 of the gas seal module 440 to the internal filter element 457. An internal vent tube 455 extends from the housing 413. An internal filter 457 vents the atmosphere from the housing 413. 459 extends into the endoscopic cavity 452 to facilitate gas exchange.

[0057] The housing 450 of the gas seal module 440 supports a pressurized nozzle assembly 490. 4. The gas seal tube 440 is dimensioned and configured to support the gas seal tube 440 from the housing 450. To create a gas seal in throat section 484 extending to lobe 425 The nozzle assembly 490 is adapted and configured to accelerate the gas. An upper ring component 492 having an O-ring seal 493 and an associated O-ring seal 494. 95. As will be described in more detail below, The gas accelerator nozzle 494 includes one or more gas acceleration nozzles.

[0058] As best seen in FIG. 27, gas inlet plenum 497 is connected to internal gas delivery conduit 421. The lower surface of the upper ring component 492 and the lower nozzle disc 4 94. More specifically, the housing 450 is formed between the upper surface of the gas delivery conduit 4 21, and an outlet port 451 for communicating with a gas return conduit 423. The nozzle assembly 490 includes a louvered vent plate 429. The ventilation path 499 is defined to promote two-way gas exchange with the atmosphere by the release of the gas from the do.

[0059] Referring now to Figures 30-37, four different embodiments of a metal nozzle disk are shown. 28, each of which is similar to the internal gas seal module 4 shown in FIG. 40. In these embodiments, each The metal disk 594 is disposed within the internal gas seal module 444 of the gas delivery device 412. To accelerate the pressurized gas received from the pump 416 to generate the gas seal, at least one radially inwardly angled nozzle 596 in the gas seal lumen tube 4 a cylindrical bore 598 to accommodate air ingress into and gas egress from 44; and Separates and seals the high and low pressure sides of disk 594 within housing 450 of module 440 The grooves are formed by O-ring seals 595 for sealing against the grooves.

[0060] 30 and 31, an embodiment of the disk 594 includes a cylindrical bore 59 8 and a nozzle 596 angled radially inwardly from both ends of the nozzle 596. The disk 594 has a center axis offset from the center axis of the disk 594. The configuration is shown in FIGS. 32 and 33 as having a radially spaced apart cylindrical bore 598. It has a plurality of nozzles 596 therein that are angled radially inward, all of which are disks. The axis of the disk is offset from the center axis of the disk.

[0061] In another embodiment, the disk 594 may be a disk 596, as shown in FIGS. A radially extending hole 596 is formed within and surrounds a cylindrical bore 598 axially aligned with the central axis of the housing 594. The disk 594 further includes a plurality of inwardly angled jet nozzles 596. In another embodiment, as shown in FIGS. A radially inward angled nozzle receiving pressurized gas through a radial inlet passage 597 596, with a cylindrical bore 598 axially aligned with the central axis of the disk 594. do.

[0062] In essence, the cylindrical bore 598 in each of these metal disks 594 is Serves the same function as the central bore of the ring jet assembly for the seal access port. (See U.S. Patent No. 8,795,223), which is centrally located and allows for the passage of instruments. However, the jet disk 594 is internal to the gas delivery device 412. Since there is no need to accommodate an instrument passageway, the cylindrical bore 598 in each disk 594 is It is not very large and can be located off-center. This allows the access port This is because there is no need to form an airtight seal around the cylindrical instrument passing through it. It is cylindrical for ease of manufacture, but this need not be the case.

[0063] While the subject disclosure has been shown and described with reference to preferred embodiments, it will be apparent to those skilled in the art that It will be readily appreciated that changes or modifications may be made without departing from the scope of the subject disclosure. would.

Claims

1. 1. A filtered tubing set for use with a gas delivery device for performing an endoscopic surgical procedure within a surgical cavity, comprising: a) a filter cartridge having first and second flow passages formed therein; b) a first lumen tube extending from said filter cartridge and in communication with said first flow path and in communication with said surgical cavity for maintaining a stable pressure within said surgical cavity and facilitating evacuation of smoke from said surgical cavity; the stable pressure is maintained by a gas seal module including a nozzle assembly for accelerating pressurized gas; the gas seal module is supported within the gas delivery device on a housing of the gas delivery device; the housing of the gas delivery device includes a receiving cavity that removably receives the filter cartridge; the gas seal module communicates with the receiving cavity of the gas delivery device through an internal gas seal tube; the first lumen tube, the filter cartridge configured to communicate with the gas seal module and the first flow path through the internal gas seal tube when received in the receiving cavity; c) a filtered tubing set including a second lumen tube extending from said filter cartridge and in communication with said second flow path for delivering insufflation gas to said surgical cavity and for sensing pressure within said surgical cavity.

2. The filtered tubing set of claim 1, wherein a first valve seal access port and a fitting for connecting the first lumen tube are operably associated with a distal end of the first lumen tube.

3. The filtered tubing set of claim 1, wherein a second valve seal access port and a fitting for connecting the second lumen tube are operably associated with a distal end of the second lumen tube.

4. The filtered tube set of claim 1 , wherein at least one filter element is disposed within the first flow passage of the filter cartridge.

5. The filtered tube set of claim 1 , wherein at least one filter element is disposed within the second flow passage of the filter cartridge.

Images