Laparoscope suction and flushing device and using method

Abstract

The invention discloses a laparoscope suction and flushing device and a using method, and the laparoscope suction and flushing device comprises a regulator, a suction and flushing hole, an instrument access hole and a mounting hole, which are communicated with one another, are formed in the outer side of the regulator; one end of the guide tube is connected into the mounting hole, the adjustor can drive the guide tube to extend into or extend out of the adjustor, the surgical instruments are exposed or retracted through adjusting movement of the guide tube, and therefore function switching of surgical area cleaning or operation of using the surgical instruments in the guide tube is achieved; the replacement frequency of surgical instruments in the surgical process is greatly reduced, and the surgical efficiency and safety are improved.

Description

Technical Field

[0001] The invention relates to a medical device, and in particular to a laparoscopic suction and flushing device and a use method thereof. Background Art

[0002] During surgery, different medical instruments are often needed. For example, during laparoscopic surgery, due to surgical operations such as resection, electrocoagulation, and suturing, surgical instruments need to be frequently replaced from the surgical channel left in the patient's body. However, the surgical channels currently provided are limited. When an irrigator or aspirator needs to be inserted for flushing and suction during surgery, surgical instruments such as graspers or electric knives must be withdrawn first. Such frequent insertion and withdrawal of surgical instruments seriously affects the efficiency of the surgery. Especially for more difficult surgeries, the number of times surgical instruments need to be replaced will also be more. Not only can the surgical area not be cleaned in time, but it is also impossible to achieve the purpose of suction flushing and surgical operations at the same time, which increases the probability of iatrogenic injuries. Therefore, there is an urgent need for a device that can reduce the number of times surgical instruments are inserted or withdrawn during surgery. Summary of the invention

[0003] The purpose of the present invention is to provide a laparoscopic suction and flushing device and a method of use to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The solution of the present invention to solve its technical problem is:

[0005] The laparoscopic suction and irrigation device comprises: a regulator, the outer side of which is provided with interconnected suction and irrigation holes, instrument access holes and mounting holes; a guide tube, one end of which is connected to the mounting hole, and the regulator can drive the guide tube to extend into or out of the regulator.

[0006] This technical solution has at least the following beneficial effects: the suction and flushing hole on the outside of the regulator can be connected to an external suction device or flushing device, the instrument access hole can be connected to an external surgical instrument, and the surgical instrument can be inserted into the guide tube. When the surgical instrument in the guide tube needs to be used, the regulator is used to drive the guide tube to extend into the regulator, so that the working head of the surgical instrument protrudes from the end of the guide tube. At this time, the surgical instrument can be used to perform surgical operations. When the surgical area needs to be cleaned, the regulator is used to drive the guide tube to extend outward, so that the guide tube retracts the surgical instrument. At this time, the external suction device or flushing device can be used to suction and flush the surgical area through the end of the guide tube away from the regulator. After the cleaning is completed, the guide tube is repeatedly inserted into the regulator, and the surgical instrument can continue to be used. In this way, the exposure or retraction of the surgical instrument is realized through the adjustment of the guide tube, thereby realizing the function switching of cleaning the surgical area or using the surgical instrument in the guide tube, which greatly reduces the number of times the surgical instrument is replaced during the operation and improves the efficiency and safety of the operation.

[0007] As a further improvement of the above technical solution, the regulator includes a guide sleeve and an adjusting sleeve rotatably connected to one end of the guide sleeve, the suction and flushing hole is arranged on the outside of the guide sleeve, the end of the guide sleeve away from the adjusting sleeve forms the instrument access hole, the end of the guide sleeve close to the adjusting sleeve is connected with an arc-shaped protrusion, and the arc-shaped protrusion is inserted into the adjusting sleeve. A plurality of the arc-shaped protrusions are arranged at intervals around the central axis of the guide sleeve, and a guide space is formed between the plurality of the arc-shaped protrusions. One end of the guide tube extends into the adjusting sleeve and is located in the guide space, a guide protrusion is formed on the outside of the end of the guide tube, and a guide groove is spirally arranged on the inner side of the adjusting sleeve along its length direction, and the guide protrusion passes through the gap between two of the arc-shaped protrusions and extends into the guide groove. When it is necessary to extend the guide tube into or out of the adjuster, the adjusting sleeve is rotated so that the guide protrusion moves relatively along the guide groove, thereby allowing the guide tube to extend into or out of the adjuster. For example, the adjusting sleeve is rotated in the forward direction. At this time, the adjusting sleeve rotates relative to the guide sleeve. Since the guide protrusion on the guide tube passes through the gap between the two arc-shaped protrusions and extends into the guide groove, as the adjusting sleeve rotates, the guide protrusion moves relatively in the guide groove, and the two arc-shaped protrusions limit the rotation of the guide protrusion, so that the guide tube can only move along the axial direction of the adjusting sleeve and extend outward from the adjusting sleeve, thereby achieving the guide tube extending out of the adjuster; when the adjusting sleeve is rotated in the reverse direction, the adjusting sleeve also rotates relative to the guide sleeve. Since the guide protrusion on the guide tube passes through the gap between the two arc-shaped protrusions and extends into the guide groove, as the adjusting sleeve rotates, the guide protrusion moves relatively in the guide groove, and the two arc-shaped protrusions limit the rotation of the guide protrusion, so that the guide tube can only move along the axial direction of the adjusting sleeve and extend inward into the adjusting sleeve, thereby achieving the guide tube extending into the adjuster.

[0008] As a further improvement of the above technical solution, the end of the arc-shaped protrusion close to the guide sleeve is provided with an anti-slip groove, and the extension direction of the anti-slip groove is the same as the extension direction of the guide groove. When the guide protrusion moves relatively to the end close to the guide end in the guide groove, the guide tube is inserted into the regulator and the guide protrusion can be inserted into the anti-slip groove formed by the arc-shaped protrusion along the guide of the guide groove, so that the stability of the positioning of the guide protrusion can be improved, and the stability of the end of the guide tube after it moves into place in the adjustment sleeve can be improved, which is conducive to avoiding the situation where the guide tube is loosened when the surgical instrument is used.

[0009] As a further improvement of the above technical solution, the end surface of the guide sleeve near the adjustment sleeve is provided with a connecting groove, the groove bottom width of the connecting groove is greater than the notch width of the connecting groove, the guide sleeve is provided with a connecting port at the notch position of the connecting groove, and the end surface of the adjustment sleeve near the guide sleeve is connected with a connecting block, and the connecting block passes through the connecting port and is matched and connected in the connecting groove. When the guide sleeve and the adjustment sleeve are assembled and connected to each other, the connecting block on the adjustment sleeve can be inserted into the connecting groove from the connecting port on the end surface of the guide sleeve, so that the connecting block and the connecting groove cooperate with each other, and then the adjustment sleeve is rotated to drive the connecting block to move in the connecting groove. At this time, the connecting block and the connecting port are misaligned with each other. Since the groove bottom width of the connecting groove is greater than the notch width of the connecting groove, the adjusting sleeve cannot be directly separated from the guide sleeve along the axial direction, so that the guide sleeve and the adjustment sleeve can be quickly and stably rotated and connected.

[0010] As a further improvement of the above technical solution, a guide notch is provided on the end surface of the adjusting sleeve close to the guide sleeve, the guide notch is connected to the guide groove, and the guide protrusion enters the guide groove through the guide notch. When the guide tube and the adjusting sleeve are assembled with each other, the end of the guide tube away from the guide protrusion is first inserted from the end of the adjusting sleeve with the guide notch, and the guide tube is moved along the axial direction of the adjusting sleeve, so that the guide protrusion at the other end of the guide tube enters the guide groove from the guide notch. In this way, the connection position of the guide tube and the adjusting sleeve is set at one end close to the guide sleeve, so that the guide protrusion will not fall out from the end of the adjusting sleeve away from the guide sleeve when it moves relatively along the guide groove, thereby improving the safety of the guide tube.

[0011] As a further improvement of the above technical solution, a sealing cover is connected to the end surface of the guide sleeve away from the adjustment sleeve, and a sealing hole is provided on the sealing cover at a position directly opposite to the instrument access hole. After the surgical instrument passes through the sealing hole on the sealing cover, it is inserted into the regulator and the guide tube from the instrument access hole. The sealing cover can strengthen the sealing of the surgical instrument at the insertion position from the instrument access hole, improve the airtightness in the guide sleeve, and thus improve the efficiency of suction and flushing the surgical area through the guide tube.

[0012] As a further improvement of the above technical solution, a connector is formed on the outside of the guide sleeve, and the suction and flushing hole is formed at the end of the connector. The guide sleeve can be conveniently connected to an external device through the connector, thereby improving the efficiency of assembly and disassembly, thereby improving the user experience.

[0013] As a further improvement of the above technical solution, the connector is connected to a three-way connector, a three-way valve is arranged on the three-way connector, and the three-way valve is electrically connected to a foot switch. When in use, the external suction device and flushing device can be directly connected to the three-way connector respectively, and the connection state inside the three-way connector can be directly controlled by the three-way valve. For example, when the suction device needs to be used, only the suction device and the guide tube are connected, and when the flushing device needs to be used, only the flushing device and the guide tube are connected. The switching of the use function can be controlled by the foot switch, so that when switching different use functions, both hands can be freed, the pollution to the hands can be reduced, and the operation efficiency and safety can be improved.

[0014] The method for using the laparoscopic suction and flushing device, using the above-mentioned laparoscopic suction and flushing device, comprises:

[0015] Determining whether the foot switch is in an activated state;

[0016] When the foot switch is in an activated state, obtaining a pressing state of the foot switch;

[0017] The connection state between the three-way valve and the connector is controlled according to the pressing state.

[0018] This technical solution has at least the following beneficial effects: by first determining whether the foot switch is in an activated state, the impact caused by misunderstanding of the foot switch when it is not needed can be effectively prevented, thereby improving the safety of use. In this way, after confirming that the foot switch is in an activated state, the connection state of the three-way valve and the connector can be controlled, thereby accurately completing the switching of different functions by pressing the foot switch.

[0019] As a further improvement of the above technical solution, the step of determining whether the foot switch is in an activated state includes:

[0020] Obtaining the number of times the foot switch is pressed within a preset time;

[0021] Determining whether the number of presses is less than a preset activation threshold;

[0022] When the number of presses is greater than or equal to the preset activation threshold, the foot switch is determined to be in an activated state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the structure after the regulator and the guide tube of the present invention are assembled.

[0025] Figure 2 yes Figure 1 AA cross-section diagram of .

[0026] Figure 3 It is a stereoscopic view of the guide tube of the present invention.

[0027] Figure 4 1 is a three-dimensional diagram of the adjusting sleeve of the present invention.

[0028] Figure 5 It is a stereogram of a guide sleeve of the present invention.

[0029] Figure 6 It is an overall stereogram of the present invention.

[0030] Figure 7 The present invention is a flow chart of the method for using the laparoscopic suction and flushing device.

[0031] Figure 8 It is a flow chart of step S100 in the method for using the laparoscopic suction and flushing device of the present invention.

[0032] In the accompanying drawings: 100-regulator, 110-guide sleeve, 111-instrument access hole, 112-arc-shaped protrusion, 113-anti-slip groove, 114-connecting groove, 115-connecting port, 116-connector, 117-suction and flushing hole, 120-adjusting sleeve, 121-guide groove, 122-guide notch, 123-connecting block, 200-guide tube, 210-guide protrusion, 300-sealing cover, 310-sealing hole, 400-three-way connector, 410-three-way valve, 500-foot switch. DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0036] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0037] Reference Figure 1 The laparoscopic suction and irrigation device comprises a regulator 100 and a guide tube 200, wherein the outer side of the regulator 100 is provided with a suction and irrigation hole 117, an instrument access hole 111 and a mounting hole which are interconnected; one end of the guide tube 200 is connected to the mounting hole, and the regulator 100 can drive the guide tube 200 to extend into or out of the regulator 100.

[0038] As can be seen from the above, the suction and flushing hole 117 on the outside of the regulator 100 can be connected to an external suction device or flushing device, and the instrument access hole 111 can be connected to an external surgical instrument, and the surgical instrument is inserted into the guide tube 200. When the surgical instrument in the guide tube 200 needs to be used, the regulator 100 is used to drive the guide tube 200 to extend into the regulator 100, so that the working head of the surgical instrument protrudes from the end of the guide tube 200. At this time, the surgical instrument can be used for surgical operation. When the surgical area needs to be cleaned, the regulator 100 is used to drive the guide tube 200 to extend outward, so that the guide tube 200 is inserted into the regulator 100. Tube 200 retracts the surgical instrument into the interior. At this time, an external suction device or flushing device can be used to suction and flush the surgical area through the end of the guide tube 200 away from the regulator 100. After cleaning, the guide tube 200 is repeatedly inserted into the regulator 100 to continue using the surgical instrument. In this way, the surgical instrument can be exposed or retracted through the adjustment of the guide tube 200, thereby realizing the function switching of cleaning the surgical area or using the surgical instrument in the guide tube 200, which greatly reduces the number of times the surgical instrument is replaced during the operation and improves the efficiency and safety of the operation.

[0039] The regulator 100 drives the guide tube 200 to move axially, so that the guide tube 200 extends into or out of the regulator 100. There are many structural forms for implementation. In the first embodiment, the regulator 100 includes a housing and a screw rod, the screw rod is installed on the outside of the housing, the suction and irrigation hole 117, the instrument access hole 111 and the mounting hole are formed on the housing, one end of the guide tube 200 is inserted into the screw rod, and the movable end of the screw rod extends into the housing and is connected to the end of the guide tube 200. When the guide tube 200 needs to be driven to move, the guide tube 200 can be directly driven to move by the screw rod.

[0040] In order to improve the airtightness of the regulator 100 and reduce the production cost, Figures 2 to 5As shown, in the second embodiment, the regulator 100 includes a guide sleeve 110, an adjusting sleeve 120 rotatably connected to one end of the guide sleeve 110, the suction and flushing hole 117 is arranged outside the guide sleeve 110, the end of the guide sleeve 110 away from the adjusting sleeve 120 forms the instrument access hole 111, and the end of the guide sleeve 110 close to the adjusting sleeve 120 is connected with an arc-shaped protrusion 112, and the arc-shaped protrusion 112 is inserted into the arc-shaped protrusion 112 in the adjusting sleeve 120. There are multiple arc-shaped protrusions 112 arranged at intervals around the central axis of the guide sleeve 110, and a guide space is formed between the multiple arc-shaped protrusions 112. One end of the guide tube 200 extends into the adjustment sleeve 120 and is located in the guide space. A guide protrusion 210 is formed on the outer side of the end of the guide tube 200. The inner side of the adjustment sleeve 120 is spirally provided with a guide groove 121 along its length direction. The guide protrusion 210 passes through the gap between two arc-shaped protrusions 112 and extends into the guide groove 121. When the guide tube 200 needs to be extended into or out of the regulator 100, the adjusting sleeve 120 is rotated so that the guide protrusion 210 moves relatively along the guide groove 121, so that the guide tube 200 is extended into or out of the regulator 100. For example, the adjusting sleeve 120 is rotated in the positive direction. At this time, the adjusting sleeve 120 rotates relative to the guide sleeve 110. Since the guide protrusion 210 on the guide tube 200 passes through the gap between the two arc-shaped protrusions 112 and extends into the guide groove 121, as the adjusting sleeve 120 rotates, the guide protrusion 210 moves relatively in the guide groove 121, and the two arc-shaped protrusions 112 restrict the guide protrusion 210 from rotating, so that the guide tube 200 can only be extended along the adjusting sleeve 110. The guide tube 200 can be extended outward from the adjusting sleeve 120 by axial movement, thereby realizing that the guide tube 200 extends out of the regulator 100; when the adjusting sleeve 120 is rotated in the reverse direction, the adjusting sleeve 120 also rotates relative to the guide sleeve 110. Since the guide protrusion 210 on the guide tube 200 passes through the gap between the two arc-shaped protrusions 112 and extends into the guide groove 121, as the adjusting sleeve 120 rotates, the guide protrusion 210 moves relatively in the guide groove 121, and the two arc-shaped protrusions 112 limit the rotation of the guide protrusion 210, so that the guide tube 200 can only move along the axial direction of the adjusting sleeve 120 and extend inward into the adjusting sleeve 120, thereby realizing that the guide tube 200 extends into the regulator 100.

[0041] When the guide protrusion 210 moves in the guide groove 121, since the guide groove 121 is a spiral extension, it can play a certain locking role on the position of the guide protrusion 210. In order to further improve the locking of the guide protrusion 210 after it moves to the right position, in this embodiment, the arc-shaped protrusion 112 is provided with an anti-slip groove 113 at the end close to the guide sleeve 110, and the extension direction of the anti-slip groove 113 is the same as the extension direction of the guide groove 121. When the guide protrusion 210 moves relatively to the end close to the guide end in the guide groove 121, the guide tube 200 is inserted into the regulator 100 and the guide protrusion 210 can be inserted into the anti-slip groove 113 formed by the arc-shaped protrusion 112 along the guide of the guide groove 121. In this way, the stability of the positioning of the guide protrusion 210 can be improved, and the stability of the end of the guide tube 200 after it moves to the right position in the adjustment sleeve 120 can be improved, so as to prevent the guide tube 200 from loosening when the surgical instrument is used.

[0042] In actual application, two guide protrusions 210 are symmetrically arranged at the end of the guide tube 200, and two arc-shaped protrusions 112 are also arranged on the end surface of the adjustment sleeve 120. The two guide protrusions 210 are respectively inserted into the two sides of the two arc-shaped protrusions 112, thereby improving the stability of the guide tube 200 when rotating. In addition, the guide protrusion 210 can be a columnar structure, and its circular outer side wall can reduce the friction in the guide groove 121, thereby improving the smoothness of rotating the adjustment sleeve 120.

[0043] For the rotational connection between the guide sleeve 110 and the adjustment sleeve 120, the two can be directly connected to each other using bearings. In order to improve the convenience of disassembly and assembly of the two and reduce production costs, in the present embodiment, a connecting groove 114 is provided on the end face of the guide sleeve 110 close to the adjustment sleeve 120, and the groove bottom width of the connecting groove 114 is greater than the slot width of the connecting groove 114. The guide sleeve 110 is provided with a connecting port 115 at the slot position of the connecting groove 114. A connecting block 123 is connected to the end face of the adjustment sleeve 120 close to the guide sleeve 110. The connecting block 123 passes through the connecting port 115 and is connected to the connecting groove 114. When the guide sleeve 110 and the adjustment sleeve 120 are assembled and connected, the connection block 123 on the adjustment sleeve 120 can be inserted from the connection port 115 on the end surface of the guide sleeve 110 into the connection groove 114, so that the connection block 123 and the connection groove 114 cooperate with each other, and then the adjustment sleeve 120 is rotated to drive the connection block 123 to move in the connection groove 114. At this time, the connection block 123 and the connection port 115 are mutually dislocated. Since the groove bottom width of the connection groove 114 is greater than the groove width of the connection groove 114, the adjustment sleeve 120 cannot be directly separated from the guide sleeve 110 along the axial direction, so that the guide sleeve 110 and the adjustment sleeve 120 can be quickly and stably rotated and connected. In practical applications, the close cooperation of the connection block 123 and the connection groove 114 can further improve the tightness of the connection between the guide sleeve 110 and the adjustment sleeve 120, thereby improving the air tightness between the guide sleeve 110 and the adjustment sleeve 120.

[0044] The guide tube 200 can be directly inserted into the adjusting sleeve 120 from the end of the adjusting sleeve 120 away from the guide sleeve 110. In order to prevent the guide tube 200 from slipping out of the adjusting sleeve 120 when the adjusting sleeve 120 is rotated, in the present embodiment, a guide notch 122 is provided on the end surface of the adjusting sleeve 120 close to the guide sleeve 110, and the guide notch 122 is connected to the guide groove 121, and the guide protrusion 210 enters the guide groove 121 through the guide notch 122. When the guide tube 200 and the adjusting sleeve 120 are assembled with each other, the end of the guide tube 200 away from the guide protrusion 210 is first inserted from the end of the adjusting sleeve 120 where the guide notch 122 is provided, and the guide tube 200 is moved axially along the adjusting sleeve 120 so that the guide protrusion 210 at the other end of the guide tube 200 enters the guide groove 121 from the guide notch 122. In this way, the connection position of the guide tube 200 and the adjusting sleeve 120 is set at one end close to the guide sleeve 110, so that the guide protrusion 210 will not fall off from the end of the adjusting sleeve 120 away from the guide sleeve 110 when it moves relatively along the guide groove 121, thereby improving the safety of the use of the guide tube 200.

[0045] After the surgical instrument to be used is loaded into the guide sleeve 110 from the instrument access hole 111, there will be a gap between the surgical instrument and the instrument access hole 111, which affects the air tightness in the adjustment sleeve 120. Therefore, in this embodiment, the end surface of the guide sleeve 110 away from the adjustment sleeve 120 is connected with a sealing cover 300, and a sealing hole 310 is provided on the sealing cover 300 at a position directly facing the instrument access hole 111. After the surgical instrument passes through the sealing hole 310 on the sealing cover 300, it is inserted into the regulator 100 and the guide tube 200 from the instrument access hole 111. The sealing cover 300 can be used to strengthen the sealing of the surgical instrument at the loading position from the instrument access hole 111, improve the air tightness in the guide sleeve 110, and thus improve the efficiency of suction and flushing the surgical area through the guide tube 200. In actual applications, the sealing cover 300 can be made of a material with better sealing properties to improve the sealing effect of the surgical instrument at the instrument access hole 111, and a silicone one-way valve is installed in the sealing hole 310 to allow other surgical instruments to be inserted. The silicone valve adheres closely to the surface of the surgical instrument and does not allow gas and liquid inside the device to leak out, thereby ensuring the airtightness of the device and further improving the suction and flushing efficiency.

[0046] The suction and flushing hole 117 can be directly formed on the outside of the guide sleeve 110. In this case, the peripheral device needs to be inserted into the outside of the guide sleeve 110 for connection. In this embodiment, a connector 116 is formed on the outside of the guide sleeve 110, and the suction and flushing hole 117 is formed at the end of the connector 116. The guide sleeve 110 can be conveniently connected to the peripheral device through the connector 116, thereby improving the efficiency of assembly and disassembly, thereby improving the user experience.

[0047] The external suction device and flushing device can be connected to the suction and flushing hole 117 by replacing and disassembling the connection, and in order to further improve the convenience of use, such as Figure 6 As shown, in this embodiment, the connector 116 is connected to a three-way connector 400. When in use, the external suction device and the flushing device can be directly connected to the three-way connector 400, respectively, so as to reduce the disassembly and assembly of the external device during suction and flushing, and further improve the surgical efficiency.

[0048] In the above embodiment, the use function can be switched by switching the suction device and the flushing device of the external device, and for more convenient operation, in this embodiment, a three-way valve 410 is provided on the three-way joint 400. The connection state inside the three-way joint 400 can be directly controlled by the three-way valve 410. For example, when the suction device is needed, only the suction device and the guide tube 200 are connected, and when the flushing device is needed, only the flushing device and the guide tube 200 are connected, so as to further improve the efficiency of switching the use function.

[0049] The present invention further includes a foot switch 500, which is electrically connected to the three-way valve 410. In practical applications, the foot switch 500 can be connected to the three-way valve 410 through a wire to achieve switch control of the three-way valve 410, or the foot switch 500 and the three-way valve 410 can be connected by wireless signal transmission, such as Bluetooth control. When it is necessary to switch different functions, the foot switch 500 can be used for control, so that both hands can be freed when switching different functions, reducing pollution to the hands and improving operation efficiency and safety.

[0050] The method for using the laparoscopic suction and irrigation device is to use the above-mentioned laparoscopic suction and irrigation device, such as Figure 7 As shown, including but not limited to the following steps:

[0051] Step S100, determining whether the foot switch 500 is in an activated state.

[0052] When the foot switch 500 is in the activated state, the process proceeds to step S200 to obtain the pressed state of the foot switch 500. After confirming that the foot switch 500 is in the activated state, the foot switch 500 can be pressed or not pressed to make the foot switch 500 have different pressed states.

[0053] Step S300, according to the pressing state, the connection state between the three-way valve 410 and the connector 116 is controlled. There can be multiple connection states between the three-way valve 410 and the connector 116. For example, when the foot switch 500 is not activated, the end of the three-way valve 410 connected to the external suction device and the end connected to the external flushing device are not connected to the end connected to the connector 116; when the foot switch 500 is activated, it is detected that the foot switch 500 is not pressed, and any one of the ends connected to the external suction device and the end connected to the external flushing device is connected to the connector 116. When the foot switch 500 is detected to be pressed, the other one is connected to the connector 116.

[0054] When using this laparoscopic suction and irrigation device, by first determining whether the foot switch 500 is in an activated state, the impact caused by misunderstanding of the foot switch 500 when it is not needed can be effectively prevented, thereby improving the safety of use. In this way, after confirming that the foot switch 500 is in an activated state, the connection state of the three-way valve 410 and the connector 116 is controlled, thereby accurately completing the switching of different functions by pressing the foot switch 500.

[0055] In step S100, it is determined whether the foot switch 500 is in an activated state. Figure 8 As shown, including but not limited to the following steps:

[0056] Step S110, obtaining the number of times the foot switch 500 is pressed within a preset time.

[0057] Step S120, determining whether the number of presses is less than a preset activation threshold.

[0058] When the number of presses is greater than or equal to the preset activation threshold, the process proceeds to step S130 to determine whether the foot switch 500 is in an activated state.

[0059] The condition for judging whether the foot switch 500 is activated is that the foot switch 500 needs to be pressed a certain number of times within a preset time to be judged as activated. Therefore, the number of times the foot switch 500 is pressed within the preset time is first obtained, and the activation state of the foot switch 500 is judged by comparing the obtained number of presses with the preset activation threshold. The preset time can be 2 seconds or 3 seconds, etc., and the preset activation threshold is 2 times or 3 times, etc. For example, when the number of presses of the foot switch 500 obtained within 2 seconds is greater than or equal to 2 times, the foot switch 500 is judged to be in an activated state. This can effectively prevent the problem of accidental activation caused by a single press of the foot switch 500.

[0060] In step S120, when the number of presses is less than the preset activation threshold, the process proceeds to step S140 to determine that the foot switch 500 is in an inactive state. Pressing the foot switch 500 at this time will not affect the working state of the entire machine.

[0061] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Laparoscopic suction and irrigation device, characterized in that: include: The regulator (100) is provided with a suction and flushing hole (117), an instrument access hole (111) and a mounting hole interconnected with each other on the outside; One end of the guide tube (200) is connected to the mounting hole, and the adjuster (100) can drive the guide tube (200) to extend into or out of the adjuster (100).

2. The laparoscopic suction and irrigation device according to claim 1, characterized in that: The regulator (100) comprises a guide sleeve (110), an adjusting sleeve (120) rotatably connected to one end of the guide sleeve (110), the suction and flushing hole (117) is arranged on the outside of the guide sleeve (110), the end of the guide sleeve (110) away from the adjusting sleeve (120) forms the instrument access hole (111), the end of the guide sleeve (110) close to the adjusting sleeve (120) is connected to an arc-shaped protrusion (112), the arc-shaped protrusion (112) is inserted into the adjusting sleeve (120), and the arc-shaped protrusion (112) is encircled by the arc-shaped protrusion (112). A plurality of arc-shaped protrusions (112) are arranged at intervals around the central axis of the guide sleeve (110), and a guide space is formed between the plurality of arc-shaped protrusions (112). One end of the guide tube (200) extends into the adjustment sleeve (120) and is located in the guide space. A guide protrusion (210) is formed on the outer side of the end of the guide tube (200). A guide groove (121) is spirally arranged on the inner side of the adjustment sleeve (120) along its length direction. The guide protrusion (210) passes through the gap between two arc-shaped protrusions (112) and extends into the guide groove (121).

3. The laparoscopic suction and irrigation device according to claim 2, characterized in that: An anti-slip groove (113) is provided at the end of the arc-shaped protrusion (112) close to the guide sleeve (110), and the extension direction of the anti-slip groove (113) is the same as the extension direction of the guide groove (121).

4. The laparoscopic suction and irrigation device according to claim 2, characterized in that: The end surface of the guide sleeve (110) close to the adjustment sleeve (120) is provided with a connecting groove (114); the groove bottom width of the connecting groove (114) is greater than the slot width of the connecting groove (114); the guide sleeve (110) is provided with a connecting opening (115) at the slot position of the connecting groove (114); the end surface of the adjustment sleeve (120) close to the guide sleeve (110) is connected with a connecting block (123); the connecting block (123) passes through the connecting opening (115) and is matched and connected in the connecting groove (114).

5. The laparoscopic suction and irrigation device according to claim 2, characterized in that: A guide notch (122) is provided on the end surface of the adjustment sleeve (120) close to the guide sleeve (110); the guide notch (122) is connected to the guide groove (121); and the guide protrusion (210) enters the guide groove (121) through the guide notch (122).

6. The laparoscopic suction and irrigation device according to claim 2, characterized in that: The end surface of the guide sleeve (110) away from the adjustment sleeve (120) is connected to a sealing cover (300), and a sealing hole (310) is provided on the sealing cover (300) at a position directly facing the instrument access hole (111).

7. The laparoscopic suction and irrigation device according to claim 2, characterized in that: A connector (116) is formed on the outside of the guide sleeve (110), and the suction and flushing hole (117) is formed at the end of the connector (116).

8. The laparoscopic suction and irrigation device according to claim 7, characterized in that: The connector (116) is connected to a three-way connector (400), a three-way valve (410) is provided on the three-way connector (400), and the three-way valve (410) is electrically connected to a foot switch (500).

9. A method for using a laparoscopic suction and irrigation device, characterized in that: The laparoscopic suction and irrigation device as claimed in claim 8 comprises: Determining whether the foot switch (500) is in an activated state; When the foot switch (500) is in an activated state, obtaining a pressing state of the foot switch (500); The connection state between the three-way valve (410) and the connector (116) is controlled according to the pressing state.

10. The method for using the laparoscopic suction and irrigation device according to claim 9, characterized in that: Determining whether the foot switch (500) is in an activated state comprises: Obtaining the number of times the foot switch (500) is pressed within a preset time; Determining whether the number of presses is less than a preset activation threshold; When the number of presses is greater than or equal to the preset activation threshold, the foot switch (500) is judged to be in an activated state.

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