Intraoperative Endoscopy Cleaning System

Abstract

To provide a system and method for maintaining a clean endoscope during procedures. [Solution] This disclosure relates to a method and system for cleaning an endoscope using a trocar including a cleaning system. One method includes a step of utilizing a trocar which includes a main body that defines a cavity for receiving the endoscope; and a cleaning orifice located within the main body and configured to allow a flow of cleaning solution into the cavity.

Description

Technical Field

[0001] The present disclosure generally relates to endoscopes, and more particularly, to systems and methods for maintaining a clean endoscope during a procedure.

Background Art

[0002] background An endoscope is a medical device used for medical procedures that require visualizing internal organs in a non-surgical manner generally referred to as minimally invasive procedures. A physician may use an endoscope to make a diagnosis and / or to gain access to an internal organ for treatment. An endoscope can be introduced into a patient's body through a natural opening or through a small surgical incision.

[0003] An endoscope generally includes three systems: an endoscope system, an imaging system, and a lighting system. All three systems must work together to provide the physician with an overall and clear image. More specifically, for optimal results, from the insertion of the endoscope through its movement to the organ site and throughout the entire procedure, the physician must have a clear field of view. To do this, the lens of the endoscope must be maintained free of obstructions such as smears, residues, debris, and condensation without the need to remove the device from the body. Minimally Invasive Devices, Inc. developed the FloShield™ system that directs carbon dioxide towards the tip of the scope to remove condensation, debris, and smoke from the lens. CIPHER SURGICAL developed the OpClear® device that uses a gas-propelled saline delivery system to clean the scope lens during the procedure.

[0004] The devices described above perform the function of cleaning endoscopes, but they require additional components and are quite complex in both design and use. For example, these devices include additional sleeves sized for specific endoscopes. A sleeve exists for each endoscope, and if the physician changes endoscopes during the procedure, a new sleeve also needs to be used. In addition, these devices are entirely manual devices / systems, requiring the physician to perform additional steps, thus diverting the physician's attention from the primary task.

[0005] Therefore, there is a need for simple, efficient, and easy-to-use systems and methods for maintaining a clean scope lens and field of view. [Overview of the project]

[0006] overview An intraoperative endoscopy cleaning system is disclosed herein. An exemplary intraoperative endoscopy cleaning system may include a control unit, a cleaning solution reservoir, a gas supply source connected to the control unit, and a camera port or trocar. The trocar may be connected to the control unit and the cleaning solution reservoir and may be configured to facilitate the passage of the endoscope into the patient's body and to clean the endoscope during use.

[0007] An exemplary trocar may include a main body, an inlet port, a fluid channel, a cleaning orifice, and one or more sensors.

[0008] The main body of the trocar may include a head portion and an elongated, hollow tube portion extending from the head portion and terminating at the distal end of the main body, wherein the tube portion defines a cavity configured to receive an endoscope.

[0009] The connector port may be routed through the head portion of the main body and may be configured to receive a bulkhead connector. The distal end of the tubular portion may include a shaped end having a rim. For example, the shaped end may include a first rim and a second rim opposite the first rim. The first rim may extend further from the head portion than the second rim.

[0010] The inlet port may consist of a single inlet port or multiple inlet ports. The inlet port may be located through the head portion of the main body and may be configured to receive a cleaning solution, a gas, or both. The cleaning solution may include a buffer solution containing a biocompatible surfactant. The gas may include carbon dioxide or other gases. The cleaning solution and gas may be received selectively or continuously. Other materials suitable for cleaning medical devices may be used.

[0011] The fluid channel may consist of a single fluid channel or multiple fluid channels. The fluid channel may be located in or near the tubular portion of the main body and may be in fluid communication with the inlet port to receive a cleaning solution, gas, or both from the inlet port.

[0012] The cleaning orifice may consist of a single cleaning orifice or multiple cleaning orifices. The cleaning orifice may be located near the distal end of the tubular portion of the main body and may be in fluid contact with the fluid channel to receive the cleaning solution, gas, or both from the fluid channel and to allow the cleaning solution, gas, or both to flow toward the cavity. The cleaning orifice may be located near the first edge. The cleaning orifice may include an angled port formed through at least a portion of the tubular portion of the main body. The cleaning orifice may have thin walls. The cleaning orifice may include a shaped orifice design (e.g., circular, oval, rectangular, etc.).

[0013] One or more sensors may be positioned above or inside the tubular portion of the main body between the cleaning orifice and the head portion of the main body. The sensors may be positioned near the fluid channel. The sensors may be configured to sense the position of the endoscope within the cavity. The sensors may include a flexible circuit board. The sensors may be self-calibrating. The sensors may be coupled to a lens, as shown in Figures 8A-8F. The sensors may communicate with a control unit, i.e., be functionally coupled to a control unit. The control unit may be configured to perform one or more cleaning processes (e.g., control the delivery of gas or cleaning solution) in response to feedback (e.g., data) received from the sensors. The execution of the one or more cleaning responses may be automatic. The control unit may be configured to provide user-friendliness features, such as visual and auditory feedback to the user to assist in positioning the endoscope. The one or more cleaning processes may be a de-fog operation, a priming operation, or a washing and drying operation, or may include these.

[0014] The defog operation may include a step of ejecting a burst of gas through a cleaning orifice. The defog operation may be triggered when the endoscope is retracted into the tube section and passes one or more of the sensors, such as the furthest sensor.

[0015] The priming operation may include a step of loading a certain amount of cleaning solution into the fluid channel. The priming operation may be triggered when the endoscope is retracted into the tubular portion beyond a threshold.

[0016] The cleaning and drying operation may include a step of spraying a cleaning solution from a cleaning orifice. A drying gas may follow the cleaning and drying operation. The cleaning and drying operation may last 2 seconds or less.

[0017] In some embodiments, an exemplary trocar may include the following: A main body comprising an elongated, hollow tubular portion extending and terminating distally, wherein the tubular portion defines a cavity configured to receive an endoscope; A cleaning orifice positioned within the tubular portion of the main body and configured to allow the cleaning solution to flow towards the cavity; A first gas orifice is positioned within the tubular portion of the main body between the cleaning orifice and the distal end of the main body, and is configured to allow pressurized gas to flow toward the cavity; and A second gas orifice is located within the tubular portion of the main body near the cleaning orifice and is configured to allow pressurized gas to flow toward the cavity and to atomize at least a portion of the cleaning solution within the cavity.

[0018] In some embodiments, an exemplary trocar may include the following: A main body comprising an elongated, hollow tubular portion extending and terminating distally, wherein the tubular portion defines a cavity configured to receive an endoscope; A cleaning orifice positioned within the tubular portion of the main body and configured to allow the cleaning solution to flow towards the cavity; A gas orifice positioned within the tubular portion of the main body between the cleaning orifice and the distal end of the main body, and configured to allow pressurized gas to flow toward the cavity; and A suction orifice is positioned within the tubular portion of the main body near the cleaning orifice and configured to receive fluid from the cavity.

[0019] This specification describes a method for cleaning an endoscope during a procedure using a trocar. An exemplary method may include steps of de-fogging the endoscope, priming the cavity, washing the endoscope, drying the endoscope, or a combination thereof. An exemplary method, or a specific part thereof, may be performed automatically.

[0020] In some embodiments, the exemplary method may include the following steps: A step of using a trocar comprising: a main body defining a cavity for receiving an endoscope; a cleaning orifice located within the main body and configured to allow a flow of cleaning solution into the cavity; and a gas orifice located between the distal end of the main body and the cleaning orifice and configured to allow a flow of gas into the cavity. The method may include the steps of cleaning the endoscope; drying the endoscope; and managing residual fluid on the endoscope, in the cavity, or both.

[0021] An exemplary endoscopic cleaning system is described in US 2019 / 0125176 A1. This disclosure describes solutions to various problems that occur when the trocar design is directed towards practical use and used in real-world applications. [Invention 1001] An apparatus comprising: A head portion including an inlet port configured to receive at least one of a liquid solution or a gas; A tube portion extending from the head portion, including opposing edges with a first edge extending from the head portion to a distance further from an opposing second edge, the tube portion comprising: An instrument lumen configured to receive a shaft of an instrument; A cleaning lumen connected to the inlet port and configured to receive at least one of the liquid solution or the gas, wherein a cleaning channel extends along the length of the tube portion and terminates at a cleaning orifice directed in a proximal direction and opening into the instrument lumen distal to the second edge of the tube portion, wherein the cleaning lumen is configured to deliver at least one of the liquid solution or the gas into the instrument lumen when the shaft is received within the instrument lumen to clean a portion of the instrument; and defines the cleaning lumen and a set of sensors disposed near the distal end of the tube portion and configured to detect the position of the distal end of the instrument within the instrument lumen. [Invention 1002] The apparatus of Invention 1001, wherein the cleaning lumen is configured to alternately receive the liquid solution or the gas such that the liquid solution or the gas can be delivered into the instrument lumen through the cleaning orifice and subsequently the other of the liquid solution and the gas can be delivered. [Invention 1003] A reservoir configured to supply a liquid solution into the inlet port and cleaning lumen. The apparatus of any of the present invention 1001 to 1002, further comprising the above. [Invention 1004] A control unit functionally coupled to a set of sensors, configured to control the delivery of at least one of a liquid solution or gas into an inlet port based on data received from the set of sensors. An apparatus according to any one of the present invention 1001 to 1003, further comprising the above. [Invention 1005] A control unit functionally coupled to a set of sensors, configured to provide visual or auditory feedback based on data received from the set of sensors. An apparatus according to any one of the present invention 1001 to 1003, further comprising the above. [Invention 1006] The aforementioned tube portion, A gas lumen configured to receive gas, extending along the length of the tubular portion and terminating within a gas orifice opening into the lumen of the device. An apparatus of any of the present invention 1001 to 1005 that further defines the present invention. [Invention 1007] The cleaning lumen is configured to deliver a liquid solution into the lumen of the instrument, and In order to atomize the liquid solution, a gas lumen is configured to deliver gas into the lumen of the device while the liquid solution is being delivered into the lumen of the device. Apparatus according to Invention 1006. [Invention 1008] The cleaning lumen is configured to deliver a liquid solution into the lumen of the instrument, and To dry the aforementioned portion of the instrument, a gas lumen is configured to deliver gas into the instrument lumen after the liquid solution has been delivered into the instrument lumen. Apparatus according to Invention 1007. [Invention 1009] The aforementioned tube portion, A suction lumen designed to remove moisture from within the lumen of an instrument. An apparatus of any of the present invention 1001 to 1008 that further defines the present invention. [Invention 1010] The apparatus of the present invention 1001, wherein a cleaning orifice is positioned on the side of the tube portion having a first edge. [Invention 1011] An apparatus according to any of the present invention 1001 to 1010, wherein the cleaning orifice extends proximal at an angle to the cleaning lumen such that it faces at least partially the distal end of the instrument. [Invention 1012] The apparatus of the present invention 1011, wherein the cleaning orifice is configured to deliver at least one of a liquid solution or a gas at an output angle greater than approximately 90 degrees with respect to the longitudinal axis of the cleaning lumen. [Invention 1013] An apparatus according to any of the invention 1001 to 1012, wherein each sensor in a set of sensors is positioned at a different location so that the set of sensors can detect the position of the distal end of the instrument at different locations along the longitudinal axis of the tubular portion. [Invention 1014] The sensor set is as follows: A first sensor configured to detect when the distal end of the instrument has been retracted into the instrument lumen by a first distance; and A second sensor is configured to detect when the distal end of the instrument is retracted into the instrument lumen by a second distance greater than the first distance. An apparatus according to any of the inventions 1001 to 1012, including the present invention. [Invention 1015] An apparatus according to any of the present invention 1001 to 1014, wherein a set of sensors is mounted on a flexible circuit board. [Invention 1016] The apparatus of the present invention 1015, wherein a flexible circuit board extends along the longitudinal axis of the tubular portion. [Invention 1017] A set of lenses connected to a set of sensors. Any apparatus of the present invention 1001 to 1016, further comprising the above. [Invention 1018] The device includes the following: A tubular portion including an opposing edge having a first edge that extends distally beyond an opposing second edge, the following: A lumen for the instrument, configured to receive the shaft of the instrument, It extends along the length of the tube portion, and An orifice oriented proximal to the tubular portion, terminating in an orifice that opens into the lumen of the instrument distal to the second edge of the tubular portion. A lumen for cleaning, A cleaning lumen is configured to deliver at least one of a liquid solution or a gas into the lumen of the instrument through the orifice during the cleaning process for cleaning the instrument. The tube portion that defines the area; A set of sensors positioned near the distal end of the tubular portion, configured to detect the position of the distal end of the instrument within the lumen of the instrument; and A control unit functionally connected to a set of sensors, configured to control the cleaning process based on data received from the set of sensors. [Invention 1019] The apparatus of the present invention 1018, wherein the control unit is further configured to provide visual or auditory feedback based on data received from a set of sensors. [Invention 1020] The cleaning process, A gas burst is ejected into the lumen of the appliance during a de-fog operation; A priming operation in which a certain volume of liquid solution is loaded into a cleaning lumen; A cleaning operation in which the liquid solution is sprayed into the lumen of the instrument; and The gas is ejected into the lumen of the instrument during the drying operation. An apparatus according to any of the inventions 1018 to 1019, comprising at least one of the above. [Invention 1021] Apparatus according to Invention 1020, wherein the cleaning process includes a washing operation and a subsequent drying operation. [Invention 1022] The cleaning operation is initiated in response to a signal received from a sensor in the sensor set indicating that the instrument has been retracted a predetermined distance from the distal end of the tube. The apparatus of the present invention 1021, wherein a control unit is configured to control the cleaning process. [Invention 1023] The apparatus of the present invention 1021, wherein the cleaning process further includes a priming operation before the cleaning operation. [Invention 1024] The control unit, Initiating the priming operation in response to receiving a first signal from the first sensor of the sensor set indicating that the instrument has been retracted beyond a first distance from the distal end of the tubing portion; and Initiating a cleaning operation in response to receiving a second signal from a second sensor of the sensor set indicating that the instrument has been retracted by a second distance greater than the first distance from the distal end of the tube portion. An apparatus of the present invention 1023, configured to control the cleaning process by [Invention 1025] The apparatus of the present invention 1021, wherein the cleaning process further includes a de-fog operation before the cleaning operation. [Invention 1026] The control unit, In response to receiving a first signal from the furthest sensor in the sensor set, initiate the defog operation; and In response to receiving a second signal from a sensor other than the furthest sensor in the sensor set, the cleaning operation is initiated. An apparatus of the present invention 1025, configured to control the cleaning process by [Invention 1027] The apparatus of the present invention 1021, wherein the duration of the washing and drying operations is less than approximately 5 seconds. [Invention 1028] An apparatus according to the present invention 1020, wherein the cleaning process includes only a de-fogging operation. [Invention 1029] The method includes the following steps: In response to detection via a first sensor of a set of sensors that an instrument placed in the instrument lumen of the trocar has been retracted by a first distance from the distal end of the trocar, the cleaning lumen of the trocar is primed with a certain volume of liquid solution; In response to detection via a second sensor of the set of sensors that the instrument has been retracted by a second distance greater than the first distance from the distal end of the trocar, the step of spraying the volume of the liquid solution into the lumen of the instrument so that at least a portion of the volume of the liquid solution comes into contact with and cleans the surface of the instrument; and A step of injecting a certain volume of pressurized gas into the lumen of the instrument. [Invention 1030] Prior to priming the cleaning lumen with the aforementioned volume of liquid solution, a step is taken to inject a burst of pressurized gas into the instrument lumen to remove any tarnish from the instrument's surface. The method of the present invention 1029, further comprising: [Invention 1031] The method of the present invention 1030, wherein the ejection stage occurs in response to the detection that the device has been retracted past the furthest sensor in the sensor set. [Invention 1032] Any method of the present invention 1029 to 1031, wherein a set of sensors is positioned near the distal end of a trocar in or on a portion of the trocar that defines the lumen for the instrument. [Invention 1033] Any method according to invention 1029 to 1032, wherein the volume of the liquid solution is approximately 5 μl to approximately 50 μl. [Invention 1034] Any method of the present invention 1029 to 1033, wherein the step of ejecting the aforementioned volume of gas includes ejecting the aforementioned volume of gas after ejecting the aforementioned volume of liquid solution in order to dry the surface of the apparatus. [Invention 1035] A method according to any one of the present invention 1029 to 1033, wherein the step of ejecting the aforementioned volume of gas includes ejecting the aforementioned volume of gas while the aforementioned volume of liquid solution is being ejected in order to atomize the aforementioned volume of liquid solution. [Invention 1036] The method according to any one of items 1029 to 1035 of the present invention, wherein the step of ejecting the aforementioned volume of gas lasts for a predetermined period of about 0.5 seconds to about 5 seconds. [Brief explanation of the drawing]

[0022] The aforementioned and other features and advantages of this disclosure will become apparent from the following more specific description of the embodiments of this disclosure, as shown in the accompanying drawings.

[0023] [Figure 1] This is a schematic representation of the endoscope cleaning system described herein. [Figure 2A] This is a perspective view of the trocar as disclosed herein. [Figure 2B] Figure 2A is a cross-sectional view of the trocar. [Figure 2C] This disclosure provides a schematic representation of a trocar inserted into a patient's body. [Figure 3A] This is a cross-sectional view of the trocar, showing the sensor configuration along line 3A-3A in Figure 3D. [Figure 3B] This is a cross-sectional view of the trocar, showing the lumen configuration along line 3B-3B in Figure 3D. [Figure 3C] Figure 3D shows a cross-sectional view of the trocar, illustrating the sensor and lumen configuration. [Figure 3D] This is a general description of the Trocard. [Figure 4] Figures 4A to 4E show schematic representations of the thin-walled orifice design of the trocar according to this disclosure. [Figure 5] Figure 5A is a schematic representation of the trocar. Figure 5B is a cross-section of the trocar in Figure 5A along line 5B-5B. [Figure 6] This is a schematic representation of the sensor system. [Figure 7] Figures 7A-7B are plots of exemplary sensor settings. [Figure 8] Figures 8A to 8F show a schematic representation of the sensor configuration, while Figures 8E to 8F include the lens. [Figure 9] Figures 9A to 9I show schematic representations of the angled endoscope according to this disclosure. [Figure 10] Figures 10A to 10B show schematic representations of the spray orifice design according to this disclosure. [Figure 11] Figures 11A-11B show schematic representations of the Trokar's internal graphics according to this disclosure. [Figure 12] This disclosure provides a schematic representation of the Trokar's internal graphics. [Figure 13] This is a schematic representation of the Trokar external graphics as disclosed in this disclosure. [Figure 14] This is a flowchart of the process described in this disclosure. [Figure 15] Figures 15A–15C illustrate exemplary lumens with features that cause water retention. Figures 15D–15F illustrate exemplary lumens with rounded edges and smooth transitions between surfaces to minimize water retention. [Figure 16]Figures 16A-16B illustrate exemplary trocars including gas ports (e.g., gas orifices) for atomizing the cleaning solution. Figure 16C illustrates exemplary trocars including gas ports (e.g., gas orifices) for atomizing the cleaning solution. Figure 16D illustrates exemplary trocars including multiple gas ports (e.g., gas orifices) for atomizing the cleaning solution. Figure 16E illustrates exemplary trocars without recesses near the cleaning orifices and gas orifices. [Figure 17] Figures 17A–17B illustrate exemplary trocars showing residual fluid. Figures 17C–17D illustrate exemplary trocars including elevated gas ports to prevent saline from flushing the ports and to prevent mist formation during drying. [Figure 18] Figures 18A-18C illustrate examples of residual moisture problems and their resulting impact on the scope. [Figure 19] An exemplary trocar, including a physical seal to reduce residual moisture, is illustrated. [Figure 20] An exemplary trocar, including suction to reduce residual moisture, is illustrated. [Figure 21] Figures 21A-21B illustrate an exemplary trocar, including a rear gas pressure to reduce residual moisture. [Figure 22] An exemplary trocar, including a rear gas seal to reduce residual moisture, is illustrated. [Figure 23] Figures 23A–23C illustrate an exemplary trocar, including vents to reduce residual moisture. [Figure 24] Figures 24A–24D illustrate an exemplary trocar, including drains and ribs to reduce residual moisture. [Modes for carrying out the invention]

[0024] Detailed explanation This disclosure provides a method and system for cleaning an endoscope in situ. The exemplary device may be integrated into a trocar and may include a semi-automatic cleaning process. The system and method of this disclosure are suitable for both conventional and robotic medical procedures.

[0025] In some embodiments, the disclosure relates to a method and system for cleaning a scope using a trocar modified to include a cleaning system (e.g., a trocar positioned within a camera port). A trocar is a device designed to allow the rapid and easy insertion of surgical instruments and tools into a body cavity (e.g., a body cavity 112, as depicted in Figure 1) without contact with surrounding tissue (e.g., surrounding tissue 110, as depicted in Figure 1).

[0026] This disclosure provides functions and features that may be used to efficiently and effectively clean an endoscope during a procedure. The cleaning system of this disclosure utilizes a trocar, for example, which allows the user to clean the endoscope during a procedure with minimal demands on the user.

[0027] The present disclosure may utilize a trocar with a lumen and an orifice. In some embodiments, the lumen may be single or so. The lumen and orifice of the present disclosure provide a method for channeling a cleaning solution and pressurized gas from a common inlet port, through a common lumen, to a common spray orifice for the purpose of cleaning an endoscope.

[0028] This disclosure may utilize an endoscope cleaning system comprising a cleaning solution and a pressurized gas. The cleaning solution and pressurized gas may be used for the purpose of cleaning an endoscope by delivering a small volume of the cleaning solution to a spray orifice, atomizing the solution into a transient spray, and then passing a continuous stream of gas through it.

[0029] This disclosure includes methods for minimizing and addressing residual moisture on a lens. More specifically, this disclosure utilizes methods for minimizing the accumulation of residual moisture in a common lumen to prevent residual moisture from impairing the drying portion of the cleaning cycle. Pressurized gas without a cleaning solution may be used for drying.

[0030] This disclosure includes a method for creating a reverse spray angle within a thin-walled device. The method describes a method for creating a spray angle that allows for redirection of the spray direction to angles greater than those achieved by using the length of an orifice as the primary means of redirection.

[0031] This disclosure includes a method for detecting an endoscope using light emitted from the endoscope. More specifically, this disclosure utilizes a method for detecting the presence and position of an endoscope using light emitted from the endoscope for the purpose of automatically triggering each stage in a cleaning cycle. This eliminates the need for a user to initiate the process.

[0032] This disclosure also includes a method for automatically calibrating a sensor. More specifically, a method for automatically calibrating a sensor during the initial insertion of an endoscope into a trocar allows for accommodating variations in endoscopic illumination caused by the type of endoscope, the angle of the endoscope, the light source, and the brightness of the light, for the purpose of achieving a reliable and repeatable cleaning system.

[0033] This disclosure also includes methods for assisting the user in positioning the scope for cleaning. Methods for providing the user with auditory and visual feedback for the purpose of assisting the user in positioning the endoscope to the optimal position for an effective cleaning cycle are described.

[0034] This disclosure also includes controlled spray geometry to address challenges associated with angled endoscopes. Methods and associated systems are used to control the spray geometry from a cleaning orifice for the purpose of creating spray patterns suitable for different endoscope angles.

[0035] This disclosure further includes methods for improving the sensitivity of an endoscope sensor to the level and position of light. Methods utilizing different lens designs created within the wall of the trocar may improve sensitivity for detecting the presence of the endoscope and may improve sensitivity for detecting the position of the endoscope.

[0036] This disclosure further includes a method for interpolating the endoscopic position between sensors to improve user feedback. A method for estimating the scope position using analog outputs from endoscopic sensors provides higher resolution than that provided by sensor signals alone, for the purpose of providing the user with improved feedback about the endoscopic position.

[0037] An intraoperative endoscopic cleaning system is disclosed herein. An exemplary intraoperative endoscopic cleaning system may include a control unit, a cleaning solution reservoir, a gas supply source connected to the control unit, and a camera port (e.g., a trocar). The trocar may be connected to the control unit and the cleaning solution reservoir and may be configured to facilitate insertion of the endoscope into the patient's body and to clean the endoscope during use.

[0038] An exemplary trocar may include a main body, an inlet port, a fluid channel, a cleaning orifice, and one or more sensors.

[0039] The main body of the trocar may include a head portion and an elongated, hollow tube portion extending from the head portion and terminating at the distal end of the main body, where the tube portion defines a cavity configured to receive an endoscope.

[0040] The connector port may be routed through the head portion of the main body and may be configured to receive a bulkhead connector. The distal end of the tubular portion may include a shaped end having a rim. For example, the shaped end may include a first rim and a second rim opposite the first rim. The first rim may extend further from the head portion than the second rim.

[0041] The inlet port may consist of a single inlet port or multiple inlet ports. The inlet port may be located through the head portion of the main body and may be configured to receive a cleaning solution, a gas, or both. The cleaning solution may include a buffer solution containing a biocompatible surfactant. The gas may include carbon dioxide or other gases. The cleaning solution and gas may be received selectively or continuously. Other materials suitable for cleaning medical devices may be used.

[0042] The fluid channel may consist of a single fluid channel or multiple fluid channels. The fluid channel may be located in or near the tubular portion of the main body and may be in fluid communication with the inlet port to receive a cleaning solution, gas, or both from the inlet port.

[0043] The cleaning orifice may consist of a single cleaning orifice or multiple cleaning orifices. The cleaning orifice may be located near the distal end of the tubular portion of the main body and may be in fluid contact with the fluid channel to receive cleaning solution, gas, or both from the fluid channel and to allow the cleaning solution, gas, or both to flow toward the cavity. The cleaning orifice may be located near the first edge. The cleaning orifice may include an angled port formed through at least a portion of the tubular portion of the main body. The cleaning orifice may have thin walls. The cleaning orifice may include a shaped orifice design.

[0044] One or more sensors may be positioned above or inside the tubular portion of the main body between the cleaning orifice and the head portion of the main body. The sensors may be positioned near a fluid channel. The sensors may be configured to sense the position of the endoscope within the cavity. The sensors may include a flexible circuit board. The sensors may be self-calibrating. The sensors may be connected to a lens. The sensors may communicate with a control unit. The control unit may be configured to perform one or more cleaning processes in response to feedback received from the sensors. The execution of the one or more cleaning responses may be automatic. The control unit may be configured to provide user-friendliness features, such as visual and auditory feedback to the user to assist in positioning the endoscope. The one or more cleaning processes may be a de-fog operation, a priming operation, or a washing and drying operation, or may include these.

[0045] The defog operation may include a step of ejecting a burst of gas through a cleaning orifice. The defog operation may be triggered when the endoscope is retracted into the tube section and passes one or more of the sensors, such as the furthest sensor.

[0046] The priming operation may include a step of loading a certain amount of cleaning solution into the fluid channel. The priming operation may be triggered when the endoscope is retracted into the tubular portion beyond a threshold.

[0047] The cleaning and drying operation may include a step of spraying a cleaning solution from a cleaning orifice. A drying gas may follow the cleaning and drying operation. The cleaning and drying operation may be improved upon conventional methods. The cleaning and drying operation may last 5 seconds or less, 4 seconds or less, or 3 seconds or less. Other times may be achieved.

[0048] This specification describes a method for cleaning an endoscope during a procedure using a trocar. An exemplary method may include steps of defogging the endoscope, priming the cavity, washing the endoscope, drying the endoscope, or a combination thereof. An exemplary method, or specific parts thereof, may be performed automatically. Specific procedures may be included or excluded. For example, the method may include a defogging step without a priming or washing step. Other procedures may be used or customized.

[0049] Referring to Figures 1-5B, the cleaning system 100 of the present disclosure, for example, an endoscope cleaning system, may include a trocar 200, a control unit 102, a tubing set 104, a cleaning solution reservoir 106, and a gas supply source 108, for example, a carbon dioxide (CO2) supply source. The trocar 200 may include a main body having a head portion 201 and a hollow tubular portion such as a lumen 210 for a scope or instrument. The head portion 201 may be tapered toward the scope lumen 210. The head portion 201 may be configured to receive a cap 203. The head portion 201 may include one or more ports 208, 300 for connecting other devices to the trocar 200. Other configurations may be used. The scope lumen 210 may be configured to receive a device or instrument such as an endoscope 103. The trocar 200 may include a cleaning lumen 204 (e.g., a channel) that extends along the length of the trocar 200 (or a portion thereof) and exits through an orifice 206 located at or near its distal end. The scope lumen 210 may be configured to pass through body tissue to allow a device such as an endoscope 103 to move through the trocar 200 into the body cavity (Figure 2C).

[0050] A sensing system 300 (e.g., a sensing strip as shown in Figure 6) may be located within or built into the trocar 200 to detect the scope position and provide feedback to the control unit 102. The sensing system 300 may include an electrical circuit 302 and one or more sensors 304. In an illustrative embodiment, the sensors 304 may be configured to indicate a position or function. In a further embodiment, sensor 304A may be configured as a “scope presence” sensor indicating the presence of a device in the cavity, such as an endoscope. Sensor 304B may be configured as a “priming” sensor indicating a scope position that can trigger priming of a cleaning solution channel. Sensor 304C may be configured as a “cleaning” sensor indicating a scope position that can trigger a cleaning process. Other positions and triggers may be used. The electrical circuit 302 may include a circuit board, such as a flexible circuit board. Other circuits and electrical paths may be used. The sensing system 300 may include a connector 306, such as a bulkhead connector. The control unit 102 may monitor one or more scope sensors 304, and upon detecting the scope 103, may initiate a cleaning cycle, for example, including cleaning and subsequent drying. In a further embodiment, to achieve this, the control unit 102 may prime the lumen 204 with a fixed amount of cleaning solution and then initiate drying. Gas acts as a propellant to create a very short, high-energy spray (Figure 3B) exiting the orifice 206, and once the cleaning solution is consumed, the gas acts to dry the scope 103. In this way, the scope 103 is cleaned intraoperatively (without being removed from the patient) with minimal input from the operator. The operator only needs to retract the scope 103 into the trocar 200.

[0051] The cleaning solution may contain any suitable biocompatible material, such as physiological saline solution. In some embodiments, the cleaning solution includes a buffer solution and a surfactant. Carbon dioxide may be a gas of preference for use for several reasons, including its biocompatibility and the fact that the body can absorb carbon dioxide. The gas may be supplied from a dedicated tank or from a supply source in the operating room. The gas may be supplied at a pressure in the range of about 10 to 30 psi, such as about 30 psi in one embodiment.

[0052] Generally, as shown in Figure 1, the control unit 102 is connected to a power supply 101 and a gas supply source 108 (e.g., carbon dioxide). The control unit 102 is also connected to the trocar 200 by tubing 104 and to the cleaning solution supply reservoir 106. Any number of tubes or conduits may be used to connect various elements to the trocar. An endoscope 103 with a camera 105 is shown inserted into the trocar 200.

[0053] In one embodiment, a single lumen 204 may be used to direct the cleaning solution 106 and pressurized gas 108 toward the orifice at the distal end of the trocar. Thus, the cleaning solution 106 and gas 108 may be selectively flowed through the lumen 204, for example, alternately through the same single lumen 204, or they may be flowed simultaneously.

[0054] Sensor 304 may be used to detect the presence of the scope, triggering an automated cleaning sequence. The cleaning sequence may include a step of priming the system with a predetermined or fixed amount of solution (e.g., about 5 μl to about 50 μl), and when the sensor is triggered, a pressurized gas may be activated for a predetermined or fixed time (e.g., about 0.5 to about 5 seconds, including intermediate endpoints such as about 0.5 to about 1, about 0.5 to about 2, about 0.5 to about 3, about 0.5 to about 4, about 1 to about 2, or about 1 to about 3 seconds). The gas may serve one or more purposes, for example, as a propellant to atomize the solution as it exits the orifice into a high-energy spray (e.g., lasting about 0.1 to about 0.5 seconds, including intermediate endpoints) and / or as a drying system to remove excess solution from the scope (e.g., lasting about 0.5 to about 5 seconds, including intermediate endpoints). Other sequences may be used.

[0055] As an illustrative example, as shown in Figures 3B and 3C, the cleaning orifice 206 may be located near the distal end of the tubular portion of the main body of the trocar, and may be fluidly connected to the fluid channel to receive cleaning solution, gas, or both from the fluid channel, and to allow the cleaning solution, gas, or both to flow toward the cavity. In some embodiments, the orifice 206 may be a single or so cleaning orifice. One or more sensors 304 configured to sense the position of the endoscope 103 within the cavity may be located above or in the tubular portion of the main body between the cleaning orifice 206 and the head portion of the main body. Various arrangements may be used, but the sensors 304 may be arranged in a line above or below the cleaning orifice 206 (Figures 5A-5B). Other arrangements include the sensors 304 being arranged along the longitudinal axis in a line with the cleaning orifice 206.

[0056] This system can be used with minimal input from the operator and therefore automatically detects the scope using a sensor and initiates the cleaning sequence. In another exemplary embodiment of this design, the sensor is replaced with a switch, which is operated by the operator to initiate the cleaning. This design can be further simplified by having the operator manually operate valves to control the supply of solution and gas, and thus eliminating the controller from the design. It is important to note that any combination of the above may be utilized based on this disclosure.

[0057] In one aspect, the controller may allow both the operation and cleaning level of the unit to be defined by the user's needs. Multiple operating modes may be pre-programmed within the controller and selected by the user. For example, if fogging occurs frequently in that procedure type, a de-fogging-only mode may be selected, or if debris accumulation on the scope is large due to, for example, the use of an energy device, a deep clean mode that delivers a large amount of cleaning solution to the scope may be activated. Figure 14 illustrates or illustrates this process in the form of a flowchart. In addition to different ways of interacting with the system, various operating modes can be imagined to address different types of cleaning modes. For example, some users may find it easier to perform cleaning by positioning the scope at the cleaning sensor and holding the scope in this position while the controller performs a programmed sequence. Another user might prefer to control the stages of cleaning, for example, by positioning the scope at the cleaning sensor to trigger a drying-only sequence, and then having the user pull the scope further into the trocar to activate the priming sensor to trigger a full cleaning, and then extending the scope to the cleaning sensor to perform the full cleaning.

[0058] Other alternative exemplary embodiments of the trocar design are also possible for improving the system's performance.

[0059] Examples of specific design considerations are described in the following sections.

[0060] Removal or reduction of moisture One significant challenge with spray-based cleaning systems is eliminating or minimizing the amount of residual moisture remaining in the scope lumen after spraying is complete. This residual moisture has the potential to disrupt the drying sequence, resulting in incomplete drying (water droplets on the scope lens) and thus impairing the cleaning process.

[0061] Figures 18A-18C show examples of residual moisture. During cleaning and drying, the cleaning solution 604 and / or other fluids that contaminate the scope, such as blood, tend to be pushed up along the trocar 600 between the scope 602 and the trocar wall, due to the spray and the high-pressure drying gas. When the cleaning cycle is finished (e.g., CO2 gas is turned off), the cleaning solution is under the influence of gravity, and if the scope is tilted forward, the solution may flow down along the scope, wetting the scope window, which impairs the cleaning. Another cleaning cycle is then required to dry the scope.

[0062] Luminous design, such as minimizing or reducing tortuous passages and eliminating areas where solutions may accumulate, can reduce the possibility of residual moisture, but complete elimination is difficult.

[0063] As illustrated with reference to Figures 15A–15F, lumens are designed and manufactured to eliminate edges or steps in the fluid channel that could trap or retain moisture as the cleaning solution is propelled through the lumen. In a typical lumen design, as shown in Figures 15A–15C, moisture (indicated by *) can be trapped within an area of ​​the lumen. As shown in Figures 15D–15F, a two-piece design may minimize or reduce moisture retention. As an example, edges may be removed from the fluid channel, which may minimize moisture retention or accumulation compared to designs with steps or rigid edges. Such lumens may be produced, for example, using injection molding. However, other methods may be used.

[0064] In some embodiments, the trocar design of the present disclosure includes a mode intended solely for drying. In this mode, when a specific sensor is triggered, the system performs gas drying only. This drying-only process can be extremely rapid and is effective in removing minor moisture accumulation on the scope face, including residual moisture droplets, condensation, or blood migration.

[0065] Another exemplary embodiment of the trocar of this disclosure, designed to address residual moisture, is the use of a second lumen for gas, used solely for drying. Switching from the main lumen after cleaning, for example immediately after the majority of the spray has been delivered during cleaning, results in rapid and effective drying, and also has the benefit of being able to reduce gas pressure.

[0066] Another solution to address residual moisture involves using physical seals inside the trocar to compartmentalize the cleaning process. An example of such a system is shown in Figure 19. As shown in Figure 19, two seals 702 are used within the cleaning zone to prevent the cleaning solution from a) advancing into the trocar during cleaning (e.g., while the endoscope 703 is in the cleaning position) and b) flowing out of the trocar during the drying process (e.g., while the endoscope 703 is in the drying position). This configuration may be effective in addressing the problem of residual moisture and enabling an effective cleaning-drying cycle. Lip seals have been found to provide a seal with low static friction. For example, the lip seal 702 may include a body 702A disposed within a cavity 701 formed in the wall of the trocar 700. A lip 702B may protrude from the body 702A and extend toward the endoscope. Various designs of seal angle, lip shape, and material may be used.

[0067] Figure 20 shows a solution for addressing residual moisture using a suction port 816 located proximal to the cleaning port 804. In this embodiment, suction is activated during the cleaning phase of the cleaning process (e.g., while the endoscope 803 is in the cleaning position) and during the drying phase (e.g., while the endoscope 803 is in the drying position), thereby removing moisture from inside the trocar 800 and eliminating residual moisture 801. This solution allows the suction flow rate to be matched to the gas flow rate so that there is no net effect of gas flow entering the body cavity.

[0068] Figures 21A-21B illustrate a solution for addressing residual moisture using an additional gas port 902B located proximal to the cleaning port 904. As shown in the figures, a gas channel 912 may supply pressurized gas to one or more gas ports 902A, 902B. A fluid channel 910 may supply cleaning solution to the cleaning port 904. In this embodiment, back gas (e.g., via port 602B) is activated during cleaning (e.g., while the endoscope 903 is in the cleaning position) and during drying (e.g., while the endoscope 903 is in the drying position). The back gas creates back pressure inside the trocar, which acts as a barrier to prevent saline solution 901 from entering the trocar 900. In this embodiment, it may be important to tightly control the flow of back gas. For example, if it is too low, the gas may be ineffective in preventing saline solution from entering, and if it is too high, the gas may compete with the cleaning process and blow the spray out of the scope, which reduces the effectiveness of cleaning. This control can be implemented in several ways, including by controlling the orifice diameter. Reducing the orifice diameter reduces the flow rate, and vice versa. As an alternative and more flexible solution, a dedicated lumen supplying the orifice may be used, allowing the gas pressure and flow rate to be set independently of the gas drying port.

[0069] Figure 22 shows one rear gas pressure design. As shown in the figure, one or more gas channels 1012, 1018 may provide pressurized gas to one or more gas ports 1002, 1016. A fluid channel 1010 may provide cleaning solution to the cleaning port 1004. In this embodiment, a reduction in the inner diameter of the trocar 1000 is created, and the rear gas port 1016 is created in the groove such that the gas flow is higher distally than proximal at this position. In this configuration, a gas seal may be created to prevent the entry of saline using a low gas flow rate and low pressure so that the saline does not impair the effectiveness of saline cleaning. In this embodiment, rear gas (e.g., via port 716) may be activated during cleaning (e.g., while the endoscope 703 is in the cleaning position) and during drying (e.g., while the endoscope 703 is in the drying position).

[0070] Figures 23A–23C show additional or alternative approaches to address residual moisture 1101. As shown in the figures, a gas channel 1112 may supply pressurized gas to one or more gas ports 1102. A fluid channel 1110 may supply cleaning solution to the cleaning port 1104. As shown in the figures, a vent 1116 may be created on the proximal side of the trocar 1100 to allow cleaning solution and gas that has passed beyond the scope 1103 to be vented into the body cavity, so that only a small amount of moisture remains in the trocar when the drying gas is turned off at the end of the drying stage.

[0071] Figures 24A–24D show additional or alternative approaches to address residual moisture 1201. As shown in the figures, a gas channel 1212 may supply pressurized gas to one or more gas ports 1202. A fluid channel 1210 may supply cleaning solution to a cleaning port 1204. A drain 1216 is created at the distal end of the trocar 1200. These are designed to allow residual moisture 1201 in the trocar 1200 to drain out of the trocar 1200 rather than traveling along the length of the scope 1203 and wetting the scope lens. It may be beneficial to prevent the scope 1203 from contacting the wall of the trocar 1200, as this would increase the likelihood of cleaning suction occurring between the trocar 1200 and the scope 1203. To prevent this, a rib 1218 is created on the inner surface of the trocar 1200 in an axial direction to position the scope 1203 in the center of the trocar 1200, and thus create a channel that can direct the residual moisture 1201 toward the drain 1216.

[0072] Supply of trocar outer diameter Since it is known that large incisions are associated with increased pain and an increased risk of hernia, there is a desire to keep the outer diameter of the trocar small in order to minimize or reduce the size of the incision in the patient. One challenge in the trocar design of this disclosure is how to implement lumens and orifices that have only a slight impact on the outer diameter of the trocar.

[0073] As shown in Figures 4A–4E, the orifice 206 may be angled to face a scope or other instrument, and may extend proximal at an angle to the cleaning lumen so as to face, for example, the distal end of a scope or other instrument (e.g., the lens of the scope) at least partially. As an example, the orientation of the lumen 204 and / or 206 may be arranged such that the fluid output angle from the orifice is greater than about 90° (typically about 110° to about 170°) with respect to the longitudinal axis of the lumen 204 connected to the orifice. Other angles and arrangements may be used as shown in Figures 4C–4E. To create such reorientation, it may be necessary that the length of the orifice is greater than or equal to the diameter of the orifice. As shown in Figure 4A, certain arrangements may benefit from a thickness T1 greater than the outer diameter of each of the orifice 206. For typical orifice diameters of about 1.0 mm to about 1.6 mm, this adds thickness to the trocar. If the wall thickness is less than the length of the orifice, the range of reorientation may be significantly reduced.

[0074] To achieve thinner trocar walls, the design of this disclosure utilizes two different techniques. In the first technique, shown in Figures 4C, 4D, and 4E, the circular cross-section of the trocar is maintained, and the scope lumen is positioned eccentrically with respect to the center of the trocar. The cleaning lumen is located within the thickest part of the trocar wall. As the lumen 204' approaches the distal end of the trocar, its direction is reversed before it exits through the orifice. Orifice 206' using this approach requires that the spray redirection is less than approximately 90° (typically about 20° to about 70°), which means that the wall thickness may be less than the orifice diameter, as shown in Figure 4C, where T2 is less than the outer diameter of each orifice. In the second technique, the scope lumen is kept concentric with the outer diameter, and the outer diameter of the trocar is locally thickened to create ribs running along the length of the trocar. The cleaning lumen and sensor strip are positioned within the rib in a stack configuration, with the sensor strip positioned between the inner wall of the trocar and the cleaning lumen. This separation naturally creates the length required for the orifice to direct the spray.

[0075] Scope positioning One aspect of this system design is the ability to reliably detect the position of a scope within a trocar, given the sources of variation in different types of scopes available on the market. For example, scopes are available from different manufacturers and have different specifications, such as viewing angle, light pattern, and the use of different light sources, such as halogen or LED.

[0076] One embodiment uses a photodetector to detect light emitted from a scope. The photodetector provides an analog output in response to the level of light incident on the sensor. Other types of sensors considered include light reflection sensors, transmitted beam sensors, and inductive proximity sensors. Photodetectors offer advantages in terms of low package size, low cost, and simplicity.

[0077] To accommodate variations in sensors and different levels of light (e.g., pattern and brightness) originating from different scopes, it is beneficial to calibrate the system upon first use. To achieve this, the control unit may monitor the incident light upon initial scope insertion and apply calibration coefficients to normalize the sensor signals based on the peak levels measured from the sensors, or the trigger thresholds may be adjusted to set the trigger voltage for each sensor. For example, the following equation may be used: Threshold = 80% x Peak Voltage Predefined formulas, such as those given by the above, are used.

[0078] In addition to using dynamic thresholds to accommodate variations, different transitions of the sensor may be used to suit specific purposes. For example, when you want to detect the presence of a scope, you may apply a low threshold to the sensor signal that provides a sensitive signal for the presence of the scope. However, if you want to detect when the sensor has reached a certain position, you may use an "off" transition, that is, when the scope has passed the sensor and the light has been blocked.

[0079] In one embodiment, the sensor is located on the dry side of the trocar (behind the inner wall of the trocar) to isolate it from contaminating materials and cleaning solutions, and therefore the trocar wall is manufactured from a transparent material such as polycarbonate or polypropylene. Then, it becomes possible to characterize the trocar wall to create a lens intended to either improve the sensor's sensitivity by capturing additional light (in the radial and axial directions) or improve the sensor's positional sensitivity by preferentially capturing light in the radial axis. Both techniques are useful in trocar design. For example, the purpose of a "scope presence" sensor is to detect a scope and therefore benefits from a lens that captures more light, and the purpose of a "cleaning" sensor is to trigger cleaning at a precise location and therefore benefits from a shaped lens.

[0080] One aspect of this system design is providing feedback to the user to help them position the scope correctly for cleaning. While the sensor ensures that the cleaning cycle is triggered at predetermined times, the manual positioning of the scope presents an opportunity for the user to stop the scope outside the optimal position. In this case, the effectiveness of cleaning may be compromised; for example, if the scope is out of its designated position and covering the cleaning port, cleaning will not occur. To help the user target this position with high reliability, it is beneficial to provide feedback that allows the user to approach the approximate position and then find the optimal position. For example, the system may allow the user to quickly retract the scope and be alerted when approaching the cleaning position, thereby allowing the scope to slow down in preparation for stopping.

[0081] One solution to this is auditory or visual feedback, such as flashing lights on the control unit or position indicators superimposed on the scope display.

[0082] The current trocar sensor may be used to give a rough or approximate estimate of the position. For example, a warning sensor may be used to alert the user that the vehicle is about to reach the washing position, followed by a washing position sensor that alerts the user to stop. Due to the analog nature of the sensor, it is possible to interpolate the actual position of the sensor, which provides a more precise (e.g., higher resolution) estimate of the position. This information can be used to provide the user with improved feedback. For example, this position information may be used to vary the tone of an auditory signal or to change the rate of a beep (like a reverse sensor in a car), thus providing the user with continuously variable feedback until the target position is reached.

[0083] Regarding an effective cleaning cycle, the distal end of the trocar has been found to be the optimal position for cleaning and drying. At this position, debris originating from the cleaning and drying process can be effectively ejected from the trocar. This prevents the accumulation of debris within the trocar, which would cause the clean scope to become contaminated again, and also makes the scope drying process more efficient, as only a small amount of cleaning solution remains after cleaning.

[0084] De-fog removal In one aspect of the trocar of this disclosure, an initial gas burst is used to clean the scope (e.g., in de-fogging mode). This gas burst has been shown to be very effective in cleaning the scope when the contaminating material, such as condensation, splashes from perfusion solution, or blood, does not leave a film on the scope surface. For other types of contaminants, this gas burst is very effective in removing a significant amount (e.g., most or most) of the contaminant from the scope, which makes the subsequent cleaning process easier and more efficient.

[0085] One aspect of this system design may include a step that provides an easy-to-use device that does not require the user to press any buttons for the calibration, scope insertion, or cleaning cycle processes. In some embodiments of this system, the trocar includes a “presence” sensor (Figures 7A-7B) for the purpose of detecting the initial insertion of the scope. Other devices or systems may be used.

[0086] The control unit may determine whether the scope is inserted into or removed from the trocar by monitoring the rate of change in the sensor signal. For example, if the sensor signal is increasing, it may be determined that the scope is inserted, and if the sensor signal is decreasing, it may be determined that the scope is removed.

[0087] The system may use this sensor to disable the irrigation cycle when the scope is first inserted into the trocar, or to perform other functions, such as the calibration sequence detailed earlier. Conversely, the system may use this sensor input to disable the irrigation cycle when the scope is removed from the trocar, for example, when the user is changing the scope type, which often occurs during the procedure.

[0088] Different viewing angles of the scope In some embodiments, the system may be used with scopes having different viewing angles (Figures 9A-9I). Since the relationship between the cleaning orifice and the scope face being cleaned can vary considerably, variations in scope angles can present design challenges to the system when using only one cleaning orifice.

[0089] One solution to this challenge is to use multiple orifices arranged circumferentially within the trocar to provide effective cleaning regardless of scope rotation. However, this adds complexity to the trocar design and has the potential to increase the consumption of cleaning solution and gas. Therefore, it is desirable to have a design that maintains the simplicity of a single-orifice trocar while providing effective cleaning.

[0090] There are at least two challenges associated with angled scopes: 1) the relationship between the scope face being cleaned and the fixed orifice changes, and 2) angled scopes are asymmetrical, meaning that the relationship between the scope face and the orifice changes as the scope rotates. These challenges are illustrated in Figures 9A-9I. Figures 9A-9D show typical ranges of commercially available scope angles. Figure 9E illustrates that if the orifice is positioned for optimal relationship with a 0° scope, the positioning is compromised for an angled scope. Figure 9F shows the opposite situation, where the orifice is positioned for a 45° scope, and the relationship with a 0° scope is compromised.

[0091] Angled scopes present an additional challenge in that the orientation of the scope face (to be cleaned) relative to the orifice changes when rotated within the trocar. Figure 9G shows a scope with the orifice aligned straight to the scope for optimal cleaning, while Figure 9H shows the scope in one orientation. In that orientation, in this embodiment, the orifice is not facing the scope, which could render the scope's cleaning ineffective. Figure 9I shows a provisional case between the orientations shown in Figures 9G and 9H to help visualize the expected decrease in cleaning effectiveness when the scope is rotated and the angle changes, with the scope rotated partway between the two orientations.

[0092] To address these issues, the trocar may include a feature in which the geometric shape of the spray orifice (Figures 10A-10B) is modified to create a shape-imparting spray that spreads the spray over a large area and accommodates differences between scopes. For example, by using a rectangular or elliptical orifice, the spray pattern may be flattened from conical to fan-shaped.

[0093] One solution to scope rotation is to ask the user to twist or rotate the scope to a suitable position for cleaning as it is retracted into the trocar for cleaning. To assist this process, graphics 212 may be printed on the outside of the trocar to give the user visual cues for alignment (see Figure 13).

[0094] The interior of the trocar (Figures 11A-12) is characterized to provide a visual indicator of position so that the user can see the target if they have sufficient visibility (or if visibility improves during the cleaning sequence), thereby allowing the user to adjust the scope position for optimal cleaning. These features may be markings 214 embossed or printed on the surface of the trocar, or features 216 may be incorporated into the body of the trocar to reflect light from the scope in order to provide a highly visible target.

[0095] In some embodiments, a multiple orifice design for creating a multi-directional spray useful for scopes with angled or featured faces; and the use of small branches from the main lumen (with inherent constraints that reduce flow) to provide multiple drying ports to improve the system's ability to dry the angled or featured scope face.

[0096] Ensuring reliable spraying of cleaning solution In some embodiments, the present disclosure relates to methods and systems for improving the efficiency of sprays when cleaning scopes. In existing systems, sprays may be produced by delivering pressurized saline solution through an orifice. At low saline flow rates, the spray energy is significantly reduced, causing the saline solution to flow out of the nozzle as a stream rather than a spray. To overcome this and enable the use of low flow rates, it is possible to increase the saline pressure and reduce the orifice diameter, but this increases the complexity of the system.

[0097] Figures 16A-16B show an exemplary trocar 400 for an intraoperative endoscopic cleaning system. As shown in the figures, the trocar 400 may include a main body having an elongated, hollow tubular portion that extends and terminates distally. The tubular portion defines a cavity configured to receive an endoscope 414. A gas inlet port may be located through the main body and may be configured to selectively receive a pressurized gas (e.g., CO2). A fluid inlet port may be located through the main body and may be configured to selectively receive a cleaning solution. A cleaning orifice 404 may be located within the tubular portion of the main body and may be fluidly connected to the fluid inlet port to receive the cleaning solution and allow the cleaning solution to flow toward the cavity. A first gas orifice 402 may be located within the tubular portion of the main body between the cleaning orifice 404 and the distal end of the main body and may be fluidly connected to a gas inlet port to receive pressurization and allow the pressurized gas to flow toward the cavity. A second gas orifice 406 may be located within the tubular portion of the main body near the cleaning orifice 404 and may be fluidly connected to a gas inlet port to receive pressurized gas and to allow the pressurized gas to flow toward the cavity and atomize at least a portion of the cleaning solution within the cavity. A fluid channel or cleaning channel 410 may be connected between the fluid inlet port and the cleaning orifice 404 to provide fluid communication between them. A fluid channel or gas channel 412 (e.g., a gas lumen) may be connected between the gas inlet port and one or more of the first gas orifice 402 or the second gas orifice 406 to provide fluid communication between them.

[0098] Additionally or alternatively, and as an example for the purpose of controlling the delivery of the cleaning solution from the cleaning orifice 404 to the second gas orifice 406, a recess or channel 408 connecting both ports 404 and 406 may be provided. In this configuration, the solution from the cleaning orifice 404 is preferentially delivered through the channel to the gas orifice 406 so as to be atomized into a spray. However, as shown in Figure 16E, the trocar does not have to include the recess 408 shown in Figure 16A.

[0099] In use, the endoscope 414A may be in a cleaning position and may be subjected to a spray 405 of a cleaning solution which may be at least partially atomized by a gas flow 407. The endoscope 414B may be in a drying position and may be subjected to a gas burst 403 for drying.

[0100] As shown in Figure 16C, a cleaning channel 410 may be connected between the fluid inlet port and the cleaning orifice 404 to provide fluid communication between them, and a gas channel 412 (e.g., a gas lumen) may be connected between the gas inlet port and one or more of the first gas orifice 402 or the second gas orifice 406 to provide fluid communication between them, where at least a portion of the gas channel 412 is parallel to a portion of the cleaning channel 410. The recess 408 may have various shapes and may be formed near or adjacent to one or more of the orifices 404, 406.

[0101] Alternatively, as shown in Figure 16D, a cleaning channel 410 may be connected between the fluid inlet port and the cleaning orifice 404 to provide fluid communication between them, and a gas channel 412' may be connected between the gas inlet port and one or more of the first gas orifice 402' or the second gas orifice 406A, 406B, 406C to provide fluid communication between them, where at least a portion of the gas channel 412' is shaped to surround at least a portion of the cleaning channel 410. The multiple gas orifice (ports) 406A, 406B, 406C may be located near the cleaning orifice 404.

[0102] The gas orifices 406, 406A, 406B, and 406C may be connected to the drying gas fluid channels 412, 412' to receive, for example, a flow of pressurized gas. If the gas drying port 402 is activated simultaneously with the flow of a cleaning solution (e.g., saline solution, biocompatible buffer solution, etc.), the additional gas ports 406, 406A, 406B, and 406C can be very effective in atomizing the cleaning solution into a strong spray. This provides a practical solution for creating a strong spray with saline solution at low pressure and flow rates. In another aspect of this design, a dedicated gas channel independent of the existing gas channel design is used. This has several advantages, as the gas can be activated independently of the drying gas and configured to the optimal gas pressure and flow rate for improving the spray, but it may come with increased system complexity.

[0103] It has been observed that the cleaning spray can coalesce inside the trocar and potentially flow over the lower gas port. This typically occurs at the end of the cleaning cycle, so that the solution flows over the gas drying port during the drying process, resulting in spray. In some embodiments described herein, the cleaning solution can coalesce inside the trocar and flow past the gas port during drying. This can produce spray that can impair the drying stage of cleaning, because the gas must flow for a long time to remove all of the saline cleaning solution before the CO2 gas can effectively dry the scope.

[0104] This disclosure details a solution to the problem of preventing or reducing the atomization of saline solution in a trocar during drying. Figures 17A–17D show an exemplary trocar 500 for an intraoperative endoscope cleaning system. As shown in the figures, the trocar 500 may include a main body having an elongated, hollow tubular portion that extends and terminates distally. The tubular portion defines a cavity configured to receive an endoscope. A cleaning orifice 504 may be located within the tubular portion of the main body. A gas orifice 502 may be located within the tubular portion of the main body between the cleaning orifice 504 and the distal end of the main body. A fluid channel 510 may be connected between a fluid inlet port and the cleaning orifice 504 to provide fluid communication between them. A fluid channel 512 may be connected between a gas inlet port and one or more gas orifices 502 to provide fluid communication between them. To prevent residual fluid 501, such as cleaning solution, from cleaning up onto the gas orifice 502, the gas orifice 502 may have a raised ridge 524 relative to the surface 522 of the main body defining the cavity. Alternatively or additionally, as shown in Figure 17D, a channel 520 may be provided near the gas orifice 502 to divert the cleaning solution away from the gas orifice 502. Additionally or alternatively, a hydrophobic coating may be applied to the area of ​​the gas orifice 502 to prevent cleaning from being drawn up onto the gas orifice 502 and onto the gas inlet port.

[0105] Further aspects of the present invention Other subjects intended by this disclosure are described in the following numbered embodiments.

[0106] 1. A trocar for intraoperative endoscopic cleaning systems, comprising the following: It is the main body, The head part, A long, slender, hollow tube section extends from the head portion and terminates at the distal end of the main body, defining the cavity configured to receive an endoscope. Main body, including; A single inlet port, positioned through the head portion of the main body and configured to selectively receive cleaning solution, gas, or both; A single fluid channel located within or near the tubular portion of the main body, and configured to fluidize the inlet port to receive cleaning solution, gas, or both from the inlet port; A single cleaning orifice is positioned near the distal end of the tubular portion of the main body, and is fluidly connected to the fluid channel to receive cleaning solution, gas, or both from the fluid channel, and to allow the cleaning solution, gas, or both to flow toward the cavity; and One or more sensors, configured to sense the position of the endoscope within the cavity, are positioned above or inside the tubular portion of the main body, between the cleaning orifice and the head portion of the main body.

[0107] 2. The distal end of the tube portion of the main body is A shaped end having a first edge and a second edge opposite the first edge. Includes, The first edge extends further from the head portion than the second edge. A trocar as described in Embodiment 1.

[0108] 3. A trocar according to embodiment 2, wherein a cleaning orifice is located near the first edge.

[0109] 4. The Trocar according to embodiment 3, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0110] 5. A trocar according to embodiment 1, wherein a single cleaning orifice includes a thin-walled orifice.

[0111] 6. A trocar according to embodiment 1, wherein a single cleaning orifice includes a shaped orifice design.

[0112] 7. A trocar according to embodiment 1, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0113] 8. The trocar according to embodiment 1, wherein one or more sensors are arranged near a fluid channel.

[0114] 9. The trocar according to embodiment 1, wherein one or more sensors include a flexible circuit board.

[0115] 10. The trocar according to embodiment 1, wherein one or more of the sensors are self-calibrated.

[0116] 11. One or more lenses connected to the one or more sensors The Trocar according to embodiment 1, further comprising:

[0117] 12. Connector port, routed through the head portion of the main body and configured to receive bulkhead connectors. The Trocar according to embodiment 1, further comprising:

[0118] 13. A trocar according to embodiment 1, wherein the inner wall defining the fluid channel includes a smooth, unobstructed edge.

[0119] 14. A trocar for intraoperative endoscopic cleaning systems, comprising the following: It is the main body, The head part, A long, slender, hollow tube section extends from the head portion and terminates at the distal end of the main body, defining the cavity configured to receive an endoscope. Main body, including; An inlet port, positioned through the head portion of the main body and configured to alternately receive cleaning solution and drying gas; A fluid channel located within or near the tubular portion of the main body, and in fluid communication with the inlet port to alternately receive cleaning solution and drying gas from the inlet port; A cleaning orifice is positioned near the distal end of the tubular portion of the main body, and is fluidly connected to a fluid channel to alternately receive cleaning solution and drying gas, and to allow the cleaning solution and drying gas to flow toward the cavity; and One or more sensors, configured to sense the position of the endoscope within the cavity, are positioned above or inside the tubular portion of the main body, between the cleaning orifice and the head portion of the main body.

[0120] 15. The distal end of the tube portion of the main body is An angled end having a first edge and a second edge opposite the first edge. Includes, The first edge extends further from the head portion than the second edge. The cleaning orifice is located near the first edge. A trocar as described in embodiment 14.

[0121] 16. A trocar according to embodiment 15, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0122] 17. A trocar according to embodiment 14, wherein the cleaning orifice includes a thin-walled orifice.

[0123] 18. A trocar according to embodiment 14, wherein the cleaning orifice includes a shaped orifice design.

[0124] 19. A trocar according to embodiment 14, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0125] 20. The trocar according to embodiment 14, wherein one or more sensors are located near a fluid channel.

[0126] twenty one. The trocar according to embodiment 14, wherein one or more sensors include a flexible circuit board.

[0127] twenty two. The trocar according to embodiment 14, wherein one or more of the sensors are self-calibrated.

[0128] twenty three. One or more lenses connected to the one or more sensors A trocar according to embodiment 14, further comprising:

[0129] twenty four. Connector port, routed through the head portion of the main body and configured to receive bulkhead connectors. A trocar according to embodiment 14, further comprising:

[0130] twenty five. A trocar according to embodiment 14, wherein the inner wall defining the fluid channel includes a smooth, unobstructed edge.

[0131] 26. An intraoperative endoscopic cleaning system, comprising the following: Control unit; Washing solution reservoir; A gas supply source connected to the control unit; and A trocar connected to a control unit and a cleaning solution reservoir, configured to facilitate insertion of the endoscope into the patient's body and to clean the endoscope during use, wherein: It is the main body, The head part, A long, slender, hollow tube section extends from the head portion and terminates at the distal end of the main body, defining the cavity configured to receive an endoscope. The main body, A single inlet port is provided, located through the head portion of the main body, and configured to selectively receive cleaning solution from a cleaning solution reservoir, gas from a gas supply source, or both. A single fluid channel is located within or near the tubular portion of the main body, and is fluidly connected to the inlet port to receive cleaning solution, gas, or both from the inlet port. A single cleaning orifice is positioned near the distal end of the tubular portion of the main body, and is fluid-connected to the fluid channel to receive cleaning solution, gas, or both from the fluid channel, and to allow the cleaning solution, gas, or both to flow toward the cavity. One or more sensors, configured to sense the position of the endoscope within the cavity, are positioned above or inside the tubular portion of the main body, between the cleaning orifice and the head portion of the main body. Trocar, which also includes...

[0132] 27. The distal end of the tube portion of the main body is An angled end having a first edge and a second edge opposite the first edge. Includes, The first edge extends further from the head portion than the second edge. The system described in embodiment 26.

[0133] 28. The system according to embodiment 27, wherein a cleaning orifice is located near the first edge.

[0134] 29. The system according to embodiment 28, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0135] 30. The system according to embodiment 26, wherein the cleaning orifice includes a thin-walled orifice.

[0136] 31. The system according to embodiment 26, wherein the cleaning orifice includes a shaped orifice design.

[0137] 32. The system according to embodiment 26, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0138] 33. The system according to embodiment 26, wherein one or more sensors are located near a fluid channel.

[0139] 34. The system according to embodiment 26, wherein the one or more sensors include a flexible circuit board.

[0140] 35. The trocar according to embodiment 26, wherein one or more of the sensors are self-calibrated.

[0141] 36. One or more lenses connected to the one or more sensors The Trocar according to embodiment 26, further comprising:

[0142] 37. Connector port, routed through the head portion of the main body and configured to receive bulkhead connectors. The system according to embodiment 26, further comprising:

[0143] 38. The system according to embodiment 26, wherein the gas contains carbon dioxide.

[0144] 39. The system according to embodiment 26, wherein the cleaning solution comprises a buffer solution containing a biocompatible surfactant.

[0145] 40. The system according to embodiment 26, wherein one or more of the sensors are in communication with a control unit, and the control unit is configured to perform one or more cleaning processes in response to feedback received from the one or more sensors.

[0146] 41. The system according to embodiment 40, wherein the control unit is further configured to provide visual or auditory feedback regarding the position of the endoscope.

[0147] 42. The system according to embodiment 40, wherein the one or more cleaning processes include a de-fogging operation.

[0148] 43. The system according to embodiment 42, wherein the defog operation includes a step of ejecting a burst of gas through a cleaning orifice.

[0149] 44. The system according to embodiment 43, wherein a defog operation is triggered when the endoscope is retracted into the tube portion and passes the furthest sensor among the one or more sensors.

[0150] 45. The system according to embodiment 40, wherein the one or more cleaning processes include a priming operation.

[0151] 46. The system according to embodiment 45, wherein the priming operation includes the step of loading a certain amount of cleaning solution into a fluid channel.

[0152] 47. The system according to embodiment 45, wherein a priming operation is triggered when the endoscope is retracted into the tube portion beyond a threshold.

[0153] 48. The system according to embodiment 40, wherein the one or more cleaning processes include washing and drying operations.

[0154] 49. The system according to embodiment 48, wherein the cleaning and drying operation includes the step of ejecting a cleaning solution from a cleaning orifice, followed by ejecting a gas for drying.

[0155] 50. The system according to embodiment 49, wherein the washing and drying operations take less than 5 seconds.

[0156] 51. The system according to embodiment 26, wherein one or more sensors are in communication with a control unit, and the control unit is configured to automatically perform one or more cleaning processes in response to feedback received from the one or more sensors.

[0157] 52. The system according to embodiment 51, wherein the control unit is further configured to provide visual or auditory feedback regarding the position of the endoscope.

[0158] 53. A method for cleaning an endoscope during a procedure, The method involves the following steps: At the stage of using the Trocar, the Trocar is The main body defines the cavity for receiving the endoscope, A single cleaning orifice is positioned near the distal end of the main body and is fluidly connected to the fluid channel to receive cleaning solution, drying gas, or both from the fluid channel. One or more sensors are positioned above or inside the main unit to sense the position of the endoscope. stages Includes, The method involves the following steps: The stage of priming the cavity; The step of cleaning the endoscope; and The stage of drying the endoscope Methods that include...

[0159] 54. This further includes the step of removing condensation from the endoscope. The de-foging step includes ejecting a burst of gas through a cleaning orifice. The method described in aspect 53.

[0160] 55. The method according to embodiment 54, wherein the de-fog step is triggered when the endoscope is retracted into the main body and passes the furthest sensor among the one or more sensors.

[0161] 56. The method according to embodiment 53, wherein one or more of the sensors are self-calibrated.

[0162] 57. One or more lenses connected to the one or more sensors The method according to embodiment 53, further comprising:

[0163] 58. The method according to embodiment 53, wherein the priming step includes spraying a certain amount of cleaning solution through a cleaning orifice.

[0164] 59. The method according to embodiment 53, wherein a priming step is triggered when the endoscope is retracted into the main body beyond a threshold.

[0165] 60. The method according to embodiment 53, wherein one or more of the following steps are performed automatically: a de-fogging step, a priming step, a washing step, and a drying step.

[0166] 61. A method for cleaning an endoscope during a procedure, including a step of removing condensation from the endoscope using a trocar, The Trocar The main body defines the cavity for receiving the endoscope, A single cleaning orifice is positioned near the distal end of the main body and is fluidly connected to the fluid channel to receive cleaning solution, drying gas, or both from the fluid channel. One or more sensors are positioned above or inside the main unit to sense the position of the endoscope. Methods that include...

[0167] 62. The method according to embodiment 61, wherein the step of removing condensation includes ejecting a burst of gas through a cleaning orifice.

[0168] 63. The method according to embodiment 62, wherein the de-fog step is triggered when the endoscope is retracted into the main body and passes the furthest sensor among the one or more sensors.

[0169] 64. The method according to embodiment 61, wherein one or more of the sensors are self-calibrated.

[0170] 65. One or more lenses connected to the one or more sensors The method according to embodiment 61, further comprising:

[0171] 66. A trocar for intraoperative endoscopic cleaning systems, comprising the following: An elongated, hollow tube section that extends and terminates distally defines the cavity configured for endoscopy. Main body, including; A cleaning orifice located within the tubular portion of the main body, configured to allow the cleaning solution to flow towards the cavity; A first gas orifice, positioned within the tubular portion of the main body between the cleaning orifice and the distal end of the main body, and configured to allow pressurized gas to flow toward the cavity; and A second gas orifice is located within the tubular portion of the main body near the cleaning orifice, and is configured to allow pressurized gas to flow toward the cavity and to atomize at least a portion of the cleaning solution within the cavity.

[0172] 67. A fluid channel is connected between the fluid inlet port and the cleaning orifice to provide fluid communication between them. A trocar according to embodiment 66, further comprising:

[0173] 68. A fluid channel is connected between the gas inlet port and one or more of the first or second gas orifices to provide fluid communication between them. A trocar according to embodiment 66, further comprising:

[0174] 69. A cleaning channel connected between them to provide fluid communication between the fluid inlet port and the cleaning orifice; and A gas channel connected between them to provide fluid communication between the gas inlet port and one or more of the first gas orifice or the second gas orifice further comprising at least a portion of the gas channel is parallel to a portion of the cleaning channel, The trocar according to aspect 66.

[0175] 70. A cleaning channel connected between them to provide fluid communication between the fluid inlet port and the cleaning orifice; and A gas channel connected between them to provide fluid communication between the gas inlet port and one or more of the first gas orifice or the second gas orifice further comprising at least a portion of the gas channel is shaped to surround at least a portion of the cleaning channel, The trocar according to aspect 66.

[0176] 71. One or more third gas orifices arranged in communication with the gas channel The trocar according to aspect 70, further comprising.

[0177] 72. The trocar according to aspect 66, wherein the first gas orifice includes a raised portion raised relative to a portion near the wall of the main body.

[0178] 73. A channel formed near the first gas orifice and configured to direct fluid away from the first gas orifice The trocar according to aspect 66, further comprising.

[0179] 74. The distal end of the tube portion of the main body is A shaped end having a first edge and a second edge opposite the first edge. Includes, The first edge extends further from the head portion than the second edge. A trocar as described in aspect 66.

[0180] 75. A trocar according to embodiment 66, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0181] 76. The trocar according to embodiment 66, wherein one or more of the first or second gas orifices include an angled port formed through at least a portion of the tubular section of the main body.

[0182] 77. One or more seals positioned near the cavity, configured to seal a portion of the endoscope while the endoscope is positioned within the cavity. A trocar according to embodiment 66, further comprising:

[0183] 78. The Trocar according to embodiment 77, wherein the one or more seals include a lip seal.

[0184] 79. The trocar according to embodiment 77, wherein one or more seals are disposed between a first gas orifice and a cleaning orifice.

[0185] 80. The trocar according to embodiment 77, wherein one or more seals are arranged near the cleaning orifice and spaced apart from the first gas orifice.

[0186] 81. The trocar of aspect 66, wherein the orifice for the second gas is configured to cause a gas flow that is higher distally than proximally.

[0187] 82. One or more vent apertures formed through the main body The trocar of aspect 66, further comprising.

[0188] 83. A protrusion formed on the main body and extending inwardly into the cavity, disposed in the vicinity of the one or more vent apertures The trocar of aspect 82, further comprising.

[0189] 84. An intraoperative endoscope cleaning system, comprising the following: The trocar of aspect 66; A control unit configured to control the flow of fluid to the trocar; A cleaning solution reservoir in fluid communication with the cleaning orifice; and A gas source in fluid communication with one or more of the first gas orifice or the second gas orifice A system comprising.

[0190] 85. A trocar for an intraoperative endoscope cleaning system, the trocar comprising: An elongate hollow tube portion defining a cavity configured to receive an endoscope, extending and terminating at a distal end A main body comprising; A cleaning orifice disposed within the tube portion of the main body and configured to allow a cleaning solution to flow towards the cavity; A gas orifice disposed within the tube portion of the main body between the cleaning orifice and the distal end of the main body and configured to allow pressurized gas to flow towards the cavity; and, A suction orifice is positioned within the tubular portion of the main body near the cleaning orifice and configured to receive fluid from the cavity.

[0191] 86. A fluid channel is connected between the fluid inlet port and the cleaning orifice to provide fluid communication between them. A trocar according to embodiment 85, further comprising:

[0192] 87. A fluid channel is connected between the gas inlet port and the first gas orifice to provide fluid communication between them. A trocar according to embodiment 85, further comprising:

[0193] 88. To provide fluid communication between the fluid inlet port and the cleaning orifice, a cleaning channel is connected between them, and A gas channel is connected between the gas inlet port and the gas to provide fluid communication between them. It further includes, At least a portion of the gas channel is parallel to a portion of the cleaning channel. A trocar as described in aspect 85.

[0194] 89. A trocar according to embodiment 85, wherein the gas orifice includes a raised bulge relative to the vicinity of the wall of the main body.

[0195] 90. A channel formed near the first gas orifice, configured to direct the fluid away from the gas orifice. A trocar according to embodiment 85, further comprising:

[0196] 91. The distal end of the tube portion of the main body is A shaped end having a first edge and a second edge opposite the first edge. Includes, The first edge extends further from the head portion than the second edge. A trocar as described in aspect 85.

[0197] 92. A trocar according to embodiment 85, wherein the cleaning orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0198] 93. The trocar according to embodiment 85, wherein the first gas orifice includes an angled port formed through at least a portion of the tubular section of the main body.

[0199] 94. One or more seals positioned near the cavity, configured to seal a portion of the endoscope while the endoscope is positioned within the cavity. A trocar according to embodiment 85, further comprising:

[0200] 95. The Trocar according to embodiment 94, wherein one or more seals include a lip seal.

[0201] 96. The trocar according to embodiment 94, wherein one or more seals are disposed between a gas orifice and a cleaning orifice.

[0202] 97. The trocar according to embodiment 94, wherein one or more seals are arranged near the cleaning orifice and spaced apart from the gas orifice.

[0203] 98. One or more vent apertures formed through the main body A trocar according to embodiment 85, further comprising:

[0204] 99. A projection formed on the main body and extending inward into the cavity, located near one or more of the aforementioned vent apertures. A trocar according to embodiment 98, further comprising:

[0205] 100. An intraoperative endoscopic cleaning system, which includes the following: Trocar in aspect 20; A control unit configured to control the flow of fluid into the trocar; A cleaning solution reservoir connected to a cleaning orifice and fluid; and A gas supply source that is fluidly connected to one or more of the first or second gas orifices. A system that includes this.

[0206] 101. A method for cleaning an endoscope during a procedure, The method involves the following steps: At the stage of using the Trocar, the Trocar is The main body defines the cavity for receiving the endoscope, A cleaning orifice is located inside the main body and is configured to allow the flow of cleaning solution into the cavity. A gas orifice is positioned between the distal end of the main body and the cleaning orifice, configured to allow the gas flow into the cavity. stages Includes, The method involves the following steps: The stage of cleaning the endoscope; The step of drying the endoscope; and The stage of managing residual fluid on the endoscope, in the cavity, or both. Methods that include...

[0207] 102. The method according to embodiment 101, wherein the step of managing residual fluid includes using physical seals to compartmentalize the cleaning solution during the cleaning and drying phases of the method.

[0208] 103. The method according to embodiment 101, wherein the step of controlling residual fluid includes using suction to remove residual cleaning solution that enters the trocar during the cleaning and drying phases of the method.

[0209] 104. The method according to embodiment 101, wherein the step of controlling residual fluid includes using back gas pressure to prevent the entry of cleaning solution during the cleaning and drying phases of the method.

[0210] 105. The method according to embodiment 101, wherein the step of controlling residual fluid includes using a rear gas seal to prevent the entry of cleaning solution during the cleaning and drying phases of the method.

[0211] 106. The method according to embodiment 101, wherein the step of controlling residual fluid includes using a vent to passively allow the cleaning solution to exit through the trocar during the cleaning and drying phases of the method.

[0212] 107. The method according to embodiment 101, wherein the step of controlling residual fluid includes using drains and ribs to passively allow the washing solution to pass through the trocar during the washing and drying phases of the method.

[0213] While exemplary embodiments have been illustrated and described, deviations from the specific designs and methods described and illustrated will be suggested to those skilled in the art and will be evident in their use without departing from the spirit and scope of this disclosure. This disclosure is not limited to the specific constructions described and illustrated, and should be constructed to be consistent with all modifications that may fall within the scope of the appended claims. It should also be noted that many of the solutions described above are complementary, so that more than one solution may be used simultaneously to provide a more effective solution.

[0214] As used herein, the terms “about” and / or “approximately” generally refer to a number and / or range that is close to the stated number and / or range. In some cases, the terms “about” and “approximately” may mean within ±10% of the stated value. For example, in some cases, “about 100 [units]” may mean within ±10% of 100 (e.g., 90 to 110). The terms “about” and “approximately” may be used interchangeably.

[0215] Furthermore, the various concepts disclosed may be embodied in one or more of the methods exemplified above. The actions performed as part of the method may be ordered in any preferred manner. Thus, modes in which the actions are performed in a different order than illustrated may be constructed, including performing some actions simultaneously, even if they were shown as sequential actions in the illustrative mode.

Claims

1. Apparatus comprising: A main body defining a lumen configured to receive an endoscope, the main body having a shaped end configured to be positioned within a biological cavity, the shaped end including a first edge and a second edge opposite to the first edge, the first edge extending distally to the second edge, and the shaped end configured to allow the endoscope to extend distally beyond the first and second edges and enter the biological cavity; An inlet port located in the proximal part of the main body and configured to receive cleaning solution and gas; and A cleaning orifice having fluid communication with the inlet port, wherein the cleaning orifice is positioned proximal to the first edge at a distal position of the second edge, the cleaning orifice is inclined with respect to the longitudinal axis of the main body, and is configured to deliver the cleaning solution and the gas as an atomized spray into the lumen to clean the distal end of the endoscope.

2. The apparatus according to claim 1, wherein the cleaning orifice is angled proximally such that the output angle of the cleaning solution and the gas is greater than 90 degrees with respect to the vertical axis of the main body.

3. The apparatus according to claim 1, wherein the cleaning nozzle is configured to deliver the cleaning solution and the gas toward the distal end of the endoscope.

4. The apparatus according to claim 1, wherein the cleaning nozzle is further configured to deliver additional gas into the lumen after delivering the cleaning solution to at least partially dry the surface of the endoscope.

5. The apparatus according to claim 1, wherein the main body further comprises a fluid channel configured to fluidly connect the inlet port and the cleaning orifice, the fluid channel extending within the wall of the main body from the proximal portion of the main body to the first edge.

6. The apparatus according to claim 5, wherein the fluid channel has a smooth edge without steps or sharp edges to prevent moisture from accumulating or remaining as the cleaning solution and the gas are delivered through the fluid channel.

7. The apparatus according to claim 1, further comprising a control unit operably connected to a valve configured to be connected to the gas supply source and the cleaning solution reservoir, the control unit configured to actuate the valve to deliver the cleaning solution and the gas.

8. The apparatus according to claim 7, wherein the control unit is configured to actuate the valve in response to a signal received by the control unit.

9. The apparatus according to claim 1, further comprising a marking located on the proximal portion of the main body, the marking being configured to provide a visual indicator for assisting a user in positioning the endoscope in a predetermined location for cleaning.

10. Apparatus comprising: A main body having a wall that defines a lumen and is configured to receive an endoscope, the main body having a distal end configured to allow the endoscope to extend distally through the main body and enter the biological lumen; An inlet port located in the proximal part of the main body and configured to receive cleaning solution and gas; A cleaning orifice positioned in the wall near the distal end and facing inward toward the lumen, configured to deliver a cleaning solution and a gas as an atomized spray into the lumen for cleaning the distal end of the endoscope; and A fluid channel disposed in the wall of the main body, configured to provide fluid communication between the inlet port and the cleaning orifice, having a rounded edge without steps or sharp edges, and configured to reduce fluid stagnation within the fluid channel when the cleaning solution and the gas are delivered to the cleaning orifice.

11. The apparatus according to claim 10, wherein the fluid channel has a first rounded edge located near the inlet port and a second rounded edge located near the cleaning orifice.

12. The apparatus according to claim 11, wherein the first rounded edge is curved in a first direction, and the second rounded edge is curved in a second direction different from the first direction.

13. The apparatus according to claim 10, wherein the rounded edge is configured to change the direction of the flow of the cleaning solution and the gas delivered through it.

14. The apparatus according to claim 10, wherein the fluid channel has an oval cross-sectional shape.

15. The main body has a shaped end including a first edge and a second edge facing the first edge, wherein the first edge extends distally to the second edge, and The fluid channel and the cleaning orifice are located on the wall of the main body on the side including the first edge. The apparatus according to claim 10.

16. The apparatus according to claim 10, further comprising a marking located proximal to the main body, configured to provide a visual indicator for assisting a user in positioning the endoscope in a predetermined location for cleaning.

17. A method comprising the following steps: A step of receiving a cleaning solution and pressurized gas into the inlet port of an endoscope cleaning device, wherein the endoscope cleaning device has a main body defining a lumen configured to receive an endoscope, and the inlet port is in fluid communication with a cleaning orifice located adjacent to the distal end of the main body; In response to the distal end of the endoscope being retracted from a position distal to the distal end of the main body to a position proximal to the distal end of the main body and inside the lumen, the cleaning solution propelled by the pressurized gas is delivered via the cleaning orifice as a spray directed toward the distal end of the endoscope contained in the lumen, thereby cleaning the distal end of the endoscope; and The step of delivering the cleaning solution and then delivering additional pressurized gas to the lumen to dry the distal end of the endoscope.

18. A step of receiving a signal in a control unit operatively connected to a valve connected to a gas supply source and a cleaning solution reservoir; and The control unit is used to activate the valve and deliver the cleaning solution and pressurized gas to the inlet port. The method according to claim 17, further comprising:

19. The method according to claim 18, wherein the control unit is further configured to generate visual or auditory feedback to assist the user in positioning the endoscope for cleaning.

20. The method according to claim 17, further comprising the step of loading a certain amount of the cleaning solution into a fluid channel connected to the cleaning orifice after delivering the additional pressurized gas, thereby priming the endoscope cleaning device in preparation for a subsequent cleaning operation.

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