Adapter for evacuating smoke used with surgical access devices

Abstract

An evacuation adapter for use with a surgical access device, the evacuation adapter including a distal segment selectively engageable with a proximal segment. The distal and proximal segments each include a base, an outer ring, and an inner ring. Each base defines a central opening. Each outer ring defines at least one opening. Each inner ring defines at least one opening. The outer ring of the proximal segment includes a port. The proximal segment is rotatable relative to the distal segment between a first position in which fluid is able to flow from the central opening of the distal segment through the port and a second position in which fluid is prevented from flowing from the central opening of the distal segment through the port.

Description

Background Technology Technical Field

[0002] This disclosure relates to an adapter for use with a surgical approach device. More specifically, this disclosure relates to an adapter for use with a surgical approach device to facilitate the evacuation of smoke from the surgical site. Background of related technologies

[0003] In minimally invasive surgical procedures, including endoscopic and laparoscopic surgery, surgical access devices allow the introduction of various surgical instruments into body cavities or openings. Surgical access devices (e.g., cannulas) are introduced through openings in the tissue (i.e., naturally formed channels or incisions) to provide access to the surgical site below the body. These are typically made using an occluder, the blunt or pointed end of which is inserted into the passageway of the surgical access device. For example, a cannula has a tube made of a rigid material with a thin-walled structure through which the occluder can pass. The occluder is used to penetrate body walls, such as the abdominal wall, or to allow the surgical access device to be introduced through the body wall and subsequently removed to allow the introduction of additional surgical instruments for surgical treatment.

[0004] Minimizing fumes (containing gases and other particulate matter) escaping from pressurized body cavities during these procedures, such as when removing an instrument from a surgical access device and before introducing another through the same device, can be challenging. For example, fumes may be generated during electrosurgical procedures, and / or particulate matter may be generated when removing surgical instruments from an access device.

[0005] Therefore, it may be helpful to provide an adapter that can connect to the surgical approach device and help control the evacuation of smoke from the surgical site. Summary of the Invention

[0006] This disclosure relates to a drain adapter for use with a surgical approach device. The drain adapter includes a distal segment and a proximal segment. The distal segment is configured to selectively engage the proximal end of the surgical approach device and includes a base, an outer ring, and an inner ring. The base defines a central opening. The outer ring extends proximally from the base and defines at least one opening. The inner ring extends proximally from the base and defines at least one opening. The proximal segment is configured to selectively engage the distal segment and includes a base, an outer ring, and an inner ring. The base defines a central opening. The outer ring extends distally from the base and includes a port. The inner ring extends distally from the base and defines at least one opening. When the proximal segment engages with the distal segment, the proximal segment is rotatable relative to the distal segment between a first position and a second position, in which fluid can flow from the central opening of the distal segment through the port of the proximal segment, and in a second position, fluid flow from the central opening of the distal segment through the port of the proximal segment is prevented.

[0007] In some aspects, when the proximal segment is in the first position, at least a portion of at least one opening of the inner ring of the proximal segment may be radially aligned with at least a portion of at least one opening of the inner ring of the distal segment. Further, in some aspects, when the proximal segment is in the first position, at least a portion of the opening of the outer ring of the distal segment may be radially aligned with at least a portion of the port of the proximal segment.

[0008] Additionally, in some aspects, when the proximal segment is in the second position, at least one opening of the inner ring of the proximal segment may be radially offset from at least one opening of the inner ring of the distal segment. Furthermore, in some aspects, when the proximal segment is in the second position, the opening of the outer ring of the distal segment may be radially offset from the port of the proximal segment.

[0009] In other aspects, the distal portion of the inner ring of the proximal segment may include at least one finger extending radially outward from the distal portion, and the distal segment may include an annular slot. The at least one finger of the inner ring of the proximal segment may be configured to slide within the annular slot of the distal segment.

[0010] In some aspects disclosed, at least one opening of the inner ring of the distal segment may include four openings, and at least one opening of the inner ring of the proximal segment may include four openings.

[0011] In some aspects, the proximal segment may include at least one stop member extending distally from the base of the proximal segment, and the distal segment may include at least one wall extending radially inward from the outer ring. Rotation of the proximal segment relative to the distal segment by a predetermined amount may cause at least one stop member to contact at least one wall. Further, in some aspects, when the proximal segment is in a second position, at least one stop member may contact at least one wall.

[0012] Additionally, in some aspects, the venting adapter may include a fault-prevention component configured to ensure that the proximal segment engages the distal segment with proper radial orientation.

[0013] This disclosure also relates to a surgical system including a surgical access device and a drainage adapter. The surgical access device includes a cannula having a housing, an elongated portion, and a central channel. The elongated portion extends distally from the housing and defines a longitudinal axis. The central channel is configured to allow at least a portion of a surgical instrument to pass through it. The drainage adapter is configured to selectively engage the housing of the surgical access device and includes a distal segment, a proximal segment, and a port. The distal segment includes a base, an outer ring extending proximally from the base, and an inner ring extending proximally from the base. The base defines a central opening. The inner ring defines at least one window, and the outer ring defines at least one window. The proximal segment is configured to selectively engage the distal segment and includes a base, an outer ring extending distally from the base, and an inner ring extending distally from the base. The base defines a central opening. The inner ring defines at least one window. The port is configured to engage a suction device. When the proximal and distal sections are engaged, and when the vent adapter is engaged with the casing, the proximal section can rotate relative to the distal section between a first position and a second position. In the first position, fluid can flow from the central channel of the casing through the port of the vent adapter, and in the second position, fluid is prevented from flowing from the central channel of the casing through the port of the vent adapter.

[0014] In some aspects, when the proximal segment of the venting adapter is in a first position, at least a portion of at least one window of the inner ring of the proximal segment can be radially aligned with at least a portion of at least one window of the inner ring of the distal segment, and at least a portion of the window of the outer ring of the distal segment can be radially aligned with at least a portion of the port. Further, in some aspects, when the proximal segment of the venting adapter is in a second position, at least one window of the inner ring of the proximal segment can be radially offset with at least one window of the inner ring of the distal segment, and the window of the outer ring of the distal segment can be radially offset with the port.

[0015] In some of the disclosed aspects, the distal portion of the inner ring of the proximal segment of the venting adapter may include at least one finger extending radially outward from the distal portion, the distal segment of the venting adapter may include an annular slot, and at least one finger of the inner ring of the proximal segment may be configured to slide within the annular slot of the distal segment.

[0016] Furthermore, in some aspects, the proximal section of the venting adapter may include at least one stop member extending distally from the base of the proximal section. The distal section of the venting adapter may include at least one wall extending radially inward from the outer ring. Rotation of the proximal section relative to the distal section by a predetermined amount may cause at least one stop member to contact at least one wall. Additionally, in some aspects, when the proximal section of the venting adapter is in a second position, at least one stop member may contact at least one wall.

[0017] In some respects, the venting adapter may include a fault-proofing component configured to ensure that the proximal segment engages the distal segment with proper radial orientation. Attached Figure Description

[0018] This disclosure is illustrated with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a perspective view of a drain adapter according to this disclosure that is coupled with a surgical access device;

[0020] Figure 2 yes Figure 1 Assembly diagram of the evacuation adapter and the proximal portion of the surgical access device;

[0021] Figure 3 yes Figure 1 A 3D view of the drain adapter;

[0022] Figure 4 yes Figure 1 A three-dimensional view of the proximal segment of the venting adapter;

[0023] Figure 5 yes Figure 1 A three-dimensional view of the distal segment of the venting adapter;

[0024] Figure 6 It is along Figure 2 Section 6-6 shows a cross-sectional view of the drain adapter.

[0025] Figure 7 and Figure 8 They are respectively along Figure 1 The cross-sectional view of the evacuation adapter that is engaged with the surgical access device, taken by sections 7-7 and 8-8 in the figure.

[0026] Figure 9 yes Figure 1 A top-view perspective view of the vent adapter, which is in the open position and connected to... Figure 1 The surgical approach device is engaged; and

[0027] Figure 10 yes Figure 1 A top-view perspective view of the vent adapter, which is in the closed position and is connected to... Figure 1 The surgical approach device is connected. Detailed Implementation

[0028] The aspects of the evacuation adapter currently disclosed for use with surgical access devices will now be described in detail with reference to the accompanying drawings, in which similar reference numerals denote the same or corresponding elements in each of the multiple views. As is common in the art, the term "proximal" refers to the part or component closer to the user or operator (i.e., surgeon or physician), while the term "distal" refers to the part or component further away from the user.

[0029] In general, surgical access devices or cannulas (typically part of a cannula assembly) can be used during surgical procedures (e.g., laparoscopic surgery) and can provide a sealed pathway for laparoscopic surgical instruments to enter an inflated body cavity (such as the abdominal cavity) in several different ways. The cannula can be used with an occluder that can be inserted through the cannula. The cannula and occluder are separate components but can be selectively joined together. For example, the occluder can be inserted into and through the cannula until the handle of the occluder engages the cannula's housing, for example, selectively locking into the cannula's housing. In this initial configuration, the cannula assembly is used to penetrate an anatomical structure (e.g., the abdominal wall) by forming a new pathway or by passing through an existing opening in the structure. Once the cannula assembly has penetrated the anatomical structure, the occluder is removed, leaving the cannula in place within the structure, such as in an incision formed by the cannula assembly. The cannula's housing may include seals or valves that help prevent the injected gas from escaping from the body cavity while also allowing surgical instruments to be inserted into the body cavity.

[0030] However, during the removal of surgical instruments from the surgical access device, for example, fumes, air, fluids, gases, particulate matter, etc. (hereinafter collectively referred to as "fumes") may still escape from the body cavity (or from the surgical instruments themselves) through the seals or valves of the surgical access device. Additionally, the use of electrosurgical instruments may generate fumes within the body cavity. The venting adapter disclosed herein helps to minimize the amount of fumes vented from the surgical access device and released into the surrounding environment.

[0031] Figures 1 to 10 The drain adapter according to this disclosure is shown. First, refer to... Figure 1 The image shows the evacuation adapter 200 engaging proximal to the surgical access device 10. Generally, the surgical access device 10 includes a cannula body 100 having a housing 120 at its proximal end and an elongated portion 140 extending distally from the housing 120. The elongated portion 140 defines an extending through-channel 150. Figure 7 and Figure 8 It also defines the longitudinal axis "AA". It includes a first seal 162 and a second seal 164. Figure 7 and Figure 8The sealing component 160 is at least partially housed within the housing 120. For example, an occluder (not shown) can be inserted through the channel 150 and can engage with the housing 120 (when the evacuation adapter 200 is not engaged with the surgical access device 10). Additionally, although the evacuation adapter 200 is shown connected to a specific type of surgical access device 10, the evacuation adapter 200 of this disclosure can also be used with other types of surgical access devices.

[0032] Special Reference Figure 2 The evacuation adapter 200 can selectively engage with the housing 120 of the surgical access device 10. The evacuation adapter 200 includes a port 210 configured to engage a flexible tube of a vacuum source (not explicitly shown). When engaged with the surgical access device 10 and connected to a vacuum source, the evacuation adapter 200 is capable of purging smoke from the channel 150 of the surgical access device 10 and / or removing particulate matter from surgical instruments being removed from the channel.

[0033] like Figure 2 and Figure 3 As shown, the vent adapter 200 includes a pair of legs 220 configured to selectively engage, in a locking manner, a corresponding pair of holes 122 within the housing 120 of the sleeve body 100, for example, in a snap-fit ​​engagement. The vent adapter 200 also includes a gasket 230 on its distal section (e.g., at least partially within a recess). When the vent adapter 200 is engaged with the housing 120, the gasket 230 is configured to provide a seal to help prevent smoke from escaping between the vent adapter 200 and the housing 120.

[0034] Now for reference Figure 4 and Figure 5 This shows two parts of the drain adapter 200. More specifically, Figure 4 The proximal segment 240 of the drain adapter 200 is shown, while Figure 5 The distal segment 260 of the vent adapter 200 is shown. The proximal segment 240 of the vent adapter 200 is configured to rotatably engage the distal segment 260 of the vent adapter 200.

[0035] More specifically, when the proximal segment 240 and the distal segment 260 are mechanically engaged, and when the evacuation adapter 200 is mechanically engaged with the housing 120 of the cannula body 100, the proximal segment 240 of the evacuation adapter 200 is configured to rotate about the longitudinal axis “AA” relative to the distal segment 260 of the evacuation adapter 200 and relative to the housing 120 of the cannula body 100 of the surgical access device 10.

[0036] As will be described in further detail below, the engagement between the finger-like portion 254 of the proximal section 240 of the vent adapter 200 and the annular groove or slot 274 of the distal section 260 of the vent adapter 200 allows rotation between the proximal section 240 and the distal section 260. As will also be described in further detail below, rotation of the proximal section 240 relative to the distal section 260 allows the user to control the flow of smoke from the channel 150 of the sleeve body 100 through the port 210 of the vent adapter 200.

[0037] Special Reference Figure 4 The diagram shows a proximal section 240 of the vent adapter 200. The proximal section 240 includes: a base 242 defining a central opening 243; an outer ring 244 extending distally from the outer circumference of the base 242; an inner ring 250 extending distally from the inner circumference of the base 242 and adjacent to the central opening 243; a stop member 255 extending distally from the base 242; and a port 210 extending laterally outward from the outer ring 244.

[0038] Continue to refer to Figure 4 The inner ring 250 includes a plurality of windows or openings 252 defined therein. Although four openings 252 are shown in the exemplary structure presented, more or fewer openings 252 may be included without departing from the scope of this disclosure. In addition, the distal end of the inner ring 250 includes fingers 254 extending radially outward from the distal end.

[0039] Now for reference Figure 5 The image shows the distal segment 260 of the vent adapter 200. The distal segment 260 includes: a base 262 defining a central opening 263; an outer ring 264 extending proximally from the outer circumference of the base 262; an inner ring 270 extending proximally from the inner circumference of the base 262 and adjacent to the central opening 263; a radial wall 275 extending proximally from the base 262 and radially inward from the outer ring 264; a fault-prevention component 278 extending radially inward from the outer ring 264 between two adjacent radial walls 275; a window or opening 280 defined in the outer ring 264; and a leg 220 extending distally from the outer ring 264.

[0040] Continue to refer to Figure 5 The inner ring 270 of the distal segment 260 includes a plurality of windows or openings 272 defined therein. Although four openings 272 are shown in the exemplary structure presented, more or fewer openings 272 may be included without departing from the scope of this disclosure. Additionally, an annular groove or slot 274 is defined adjacent to the central opening 263 of the distal segment 260 and distal to the inner ring 270 (see also...). Figure 6 ).

[0041] refer to Figures 6 to 8The diagram illustrates the engagement between the proximal segment 240 and the distal segment 260 of the vent adapter 200. Generally, the proximal segment 240 and the distal segment 260 move closer to or toward each other such that the outer ring 244 of the proximal segment 240 is positioned radially outward of the outer ring 264 of the distal segment 260, and the inner ring 250 of the proximal segment 240 is positioned radially inward of the inner ring 270 of the distal segment 260. Furthermore, after the proximal segment 240 and the distal segment 260 have approached each other by a predetermined amount, the fingers 254 of the inner ring 250 of the proximal segment 240 engage the annular slot 274 of the distal segment 260. This engagement between the fingers 254 and the annular slot 274 selectively locks the longitudinal position of the proximal segment 240 relative to the distal segment 260. In addition, the finger portion 254 is configured to slide within the annular slot 274 when the proximal segment 240 rotates relative to the distal segment 260 about the longitudinal axis "AA".

[0042] Now for reference Figures 8 to 10 The diagram illustrates the fluid flow path "P" through the drain adapter 200. Rotation of the proximal section 240 relative to the distal section 260 allows the user to control the flow of fluid (e.g., including gas, air, particulate matter, and smoke) from the channel 150 of the sleeve body 100 through the port 210 of the drain adapter 200. That is, the drain adapter 200 can be in the open position (…). Figure 8 and Figure 9 ) and closing position ( Figure 10 The adapter 200 moves between the two positions. In the open position, fluid can flow from the channel 150 of the sleeve body 100 into the port 210. In the closed position, the drain adapter 200 prevents fluid from flowing from the channel 150 of the sleeve body 100 through the port 210.

[0043] More specifically, when the opening 252 of the inner ring 250 of the proximal segment 240 is radially aligned with the opening 272 of the inner ring 270 of the distal segment 260 ( Figure 8 and Figure 9 The opening 280 of the outer ring 264 of the distal segment 260 is radially aligned with the port 210, and smoke can flow from the channel 150 through the openings 252 and 272, through the cavity 261 defined between the outer ring 264 and the inner ring 270 of the distal segment 260, through the opening 280 of the outer ring 264 of the distal segment 260, and through the port 210 of the vent adapter 200.

[0044] Figure 10 The proximal segment 240 of the vent adapter 200 is depicted from... Figure 9The position of the proximal segment shown is rotated relative to the distal segment 260 in the approximate direction of arrow "B". In this position, the opening 252 of the inner ring 250 of the proximal segment 240 is radially offset from the opening 272 of the inner ring 270 of the distal segment 260. This prevents smoke from entering the cavity 261 of the distal segment 260. Additionally, in this position, the opening 280 of the outer ring 264 of the distal segment 260 is radially offset from the port 210, causing the port 210 to be blocked, thereby preventing smoke from traveling from the cavity 261 through the port 210. Therefore, the rotation of the proximal segment 240 relative to the distal segment 260 allows the user to control the flow of smoke from the channel 150 of the sleeve body 100 through the port 210 of the vent adapter 200.

[0045] Now for reference Figure 9 and Figure 10 The diagram shows a stop member 255 on the proximal section 240 of the vent adapter 200 and a radial wall 275 on the distal section 260. The stop member 255 and the radial wall 275 help limit the amount of rotation of the proximal section 240 relative to the distal section 260. For example, Figure 10 This illustrates the case where the proximal segment 240 is fully rotated relative to the distal segment 260 in the approximate direction of arrow "B". Here, the stop member 255 of the proximal segment 240 contacts the radial wall 275 of the distal segment 260, thereby preventing additional rotation of the proximal segment 240 relative to the distal segment 260 in the approximate direction of arrow "B". Additionally, when the proximal segment 240 rotates in the opposite direction (i.e., along...)... Figure 10 When the proximal segment 240 (approximately in the direction of the middle arrow "C") rotates by a predetermined amount relative to the distal segment 260, the stop member 255 of the proximal segment 240 contacts the (other) radial wall 275 of the distal segment 260, thereby preventing additional rotation between the proximal and distal segments.

[0046] Continue to refer to Figure 9 and Figure 10 The diagram illustrates a misalignment prevention component 278. This component helps ensure that the proximal segment 240 and distal segment 260 of the venting assembly 200 are assembled in the proper radial orientation. Specifically, for example, the misalignment prevention component 278 ensures that the port 210 of the proximal segment 240 and the opening 280 of the outer ring 264 are substantially located on the same radial side of the channel 150 of the sleeve body 100. Since the proximal segment 240 can only physically engage with the distal segment 260 in the proper radial orientation, the orientation and positioning of the misalignment prevention component 278 and the stop member 255 prevent misalignment of the proximal segment 240 and distal segment 260 of the venting assembly 200. More specifically, if a user attempts to engage the proximal segment 240 and distal segment 260 in the wrong orientation (e.g., rotating approximately 180° from the shown orientation), the contact between the stop member 255 and the misalignment prevention component 278 will physically prevent such an attempt at misalignment.

[0047] In use, the user brings the proximal segment 240 of the drainage adapter 200 close to the distal segment 260 until the finger-like portion 254 of the proximal segment 240 engages the annular slot 274 of the distal segment 260. The drainage adapter 200 is connected to the surgical access device 10 by engaging the foot 220 of the drainage adapter 200 with the hole 122 of the housing 120 of the cannula body 100. The suction device engages with the port 210 of the drainage adapter 200.

[0048] The user can insert the occluder into the tissue through the central opening 243 of the proximal segment 240 and the central opening 263 of the distal segment 260 of the evacuation adapter 200, respectively, through the channel 150 of the cannula body 100. Next, before removing the occluder from the surgical access device 10, if necessary, the user can ensure that the evacuation adapter 200 is in its first open position by rotating the proximal segment 240 relative to the distal segment 260. In this position, the occluder is removed from the surgical access device 10, and the suction device is able to clear any possible (e.g., through seals 162, 164) of the housing 120 before smoke enters the air (e.g., in the operating room). Figure 7 and Figure 8 )) Exit the smoke from the surgical access device 10.

[0049] The user can then insert another surgical instrument into the tissue through the central opening 243 of the proximal segment 240 and the central opening 263 of the distal segment 260 of the drainage adapter 200, respectively, through the channel 150 of the cannula body 100. When the surgical instrument is in the tissue, for example, the user can rotate the proximal segment 240 of the drainage adapter 200 relative to the distal segment 260 to move the drainage adapter 200 to its second closed position, so that the suction device does not impact the pressurized body cavity.

[0050] Understandably, during the surgical procedure, the user may move the evacuation adapter 200 to the open or closed position (or partially open position) as needed to help control the amount of smoke entering the air.

[0051] While the foregoing description contains numerous details, these details should not be construed as limiting the scope of this disclosure, but merely as illustrations of several different aspects. Therefore, the foregoing description should not be construed as restrictive, but merely as illustrative of several different aspects. Those skilled in the art will contemplate other modifications within the scope and spirit of the appended claims.

Claims

1. A surgical system, the surgical system comprising: A surgical access device having a cannula including a housing, an elongated portion and a central channel, the elongated portion extending distally from the housing and defining a longitudinal axis, the central channel being configured to allow at least a portion of a surgical instrument to pass through it. and The surgical system further includes a drainage adapter configured to selectively engage the housing of the surgical access device, the drainage adapter comprising: A distal segment, configured to selectively engage the proximal end of the surgical approach device, the distal segment including a base, an outer ring extending proximally from the base, and an inner ring extending proximally from the base, the base defining a central opening, the inner ring defining at least one window, and the outer ring defining at least one window; and A proximal segment, configured to selectively engage the distal segment, includes a base, an outer ring extending distally from the base of the proximal segment, and an inner ring extending distally from the base of the proximal segment. The base of the proximal segment defines a central opening, the inner ring of the proximal segment defines at least one window, and the outer ring of the proximal segment includes a port. When the proximal segment engages with the distal segment, the proximal segment is rotatable relative to the distal segment between a first position and a second position, wherein: At the first position, at least a portion of at least one window of the inner ring of the proximal segment is radially aligned with at least a portion of at least one window of the inner ring of the distal segment, and at least a portion of a window of the outer ring of the distal segment is radially aligned with at least a portion of the port of the proximal segment, thereby allowing fluid to flow from the central opening of the distal segment through the port of the proximal segment. In the second position, at least one window of the inner ring of the proximal segment is radially offset from at least one window of the inner ring of the distal segment, and the window of the outer ring of the distal segment is radially offset from the port of the proximal segment, thereby preventing fluid from flowing from the central opening of the distal segment through the port of the proximal segment.

2. The surgical system according to claim 1, wherein, The distal portion of the inner ring of the proximal segment includes at least one finger-like portion that extends radially outward from the distal portion.

3. The surgical system according to claim 2, wherein, The distal segment includes an annular slot, and at least one finger of the inner ring of the proximal segment is configured to slide within the annular slot of the distal segment.

4. The surgical system according to claim 1, wherein, At least one window of the inner ring of the distal segment includes four windows.

5. The surgical system according to claim 4, wherein, At least one window of the inner ring of the proximal segment includes four windows.

6. The surgical system according to claim 1, wherein, The proximal segment includes at least one stop member that extends distally from the base of the proximal segment.

7. The surgical system according to claim 6, wherein, The distal segment includes at least one wall extending radially inward from the outer ring of the distal segment, and the at least one stop member contacts the at least one wall by rotating the proximal segment relative to the distal segment by a predetermined amount.

8. The surgical system according to claim 7, wherein, When the proximal segment is in the second position, the at least one stop member contacts the at least one wall.

9. The surgical system of claim 1, further comprising a fault-prevention component configured to ensure that the proximal segment engages the distal segment with an appropriate radial orientation.

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