Surgical device with replaceable instruments

Abstract

The invention relates to the field of medical instruments, and discloses an instrument-replaceable surgical device which comprises a clamp holder, an instrument channel is arranged in the clamp holder, and a first connector and a second connector which are communicated with the instrument channel are arranged on the outer side of the clamp holder; the flushing mechanism comprises a water storage container, a water conveying pipe, a conveying pump and a first controller, the water storage container is connected to the first connector through the water conveying pipe, the conveying pump is arranged in the water storage container, and the first controller is used for controlling on-off of the water conveying pipe; the suction mechanism comprises a recovery container, a suction pipe, a vacuum pump and a second controller, one end of the suction pipe and the second connector are connected to the recovery container, the vacuum pump is connected to the other end of the suction pipe, and the second controller is used for controlling on-off of the suction pipe. And additional channels are reduced, so that the overall outer diameter is better controlled, surgical wounds are reduced, surgical instruments can be replaced from the instrument channel, and the operation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a surgical device with replaceable instruments. Background Technology

[0002] During laparoscopic minimally invasive surgery, key steps such as surgical manipulation, wastewater aspiration, and saline rinsing of the surgical site must be completed simultaneously. Currently, the common clinical approach is to create a trocar channel in the patient's body wall and insert various independent instruments through the trocar channel, such as specialized surgical forceps, suction devices, and ultrasonic scalpels, each of which performs only a single function.

[0003] This operating method has significant drawbacks. On the one hand, surgeons need to frequently switch between different instruments during surgery, affecting the smoothness of the procedure, reducing efficiency, and increasing surgical time and the likelihood of complications. On the other hand, in surgical scenarios requiring simultaneous irrigation, suction, clamping, or cauterization, the suction device occupies a separate trocar channel, impacting the surgical outcome. While some multi-channel surgical devices exist, allowing multiple instruments to enter multiple channels simultaneously, these devices result in a larger overall diameter, increasing trauma to the patient. Therefore, there is an urgent need for a smaller surgical device that facilitates instrument replacement, improving both surgical efficiency and safety. Summary of the Invention

[0004] The purpose of this invention is to provide a surgical device with replaceable instruments to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] According to a first aspect of the present invention, a surgical device with replaceable instruments includes: a clamp having an instrument channel inside, and a first connector and a second connector communicating with the instrument channel on the outside of the clamp; a flushing mechanism including a water storage container, a water supply pipe, a delivery pump, and a first controller, wherein the water storage container is connected to the first connector through the water supply pipe, the delivery pump is disposed in the water storage container, and the delivery pump is used to form a water flow from the water storage container to the first connector in the water supply pipe, and the first controller is disposed in the water supply pipe and is used to control the on / off state of the water supply pipe; and a suction mechanism including a recovery container, a suction tube, a vacuum pump, and a second controller, wherein one end of the suction tube and the second connector are respectively connected to the recovery container, the vacuum pump is connected to the other end of the suction tube, and the vacuum pump creates a negative pressure in the recovery container through the suction tube, and the second controller is disposed in the suction tube and is used to control the on / off state of the suction tube.

[0006] This technical solution has at least the following beneficial effects: One end of the clamp can be inserted into the patient's body through a puncture hole in the body wall. Surgical instruments such as forceps, scissors, and separators can be inserted into the instrument channel of the clamp. On the outer wall of the clamp, there are a first connector and a second connector, both of which are connected to the internal instrument channel. The first connector is connected to a water storage container via a water inlet pipe. A delivery pump generates power to pump the saline solution and other liquids stored in the water storage container out of the container and into the instrument channel via the water inlet pipe and the first connector. At this time, a first controller controls the flow of water. The second connector is connected to a suction tube via a recovery container. When the vacuum pump operates, it creates negative pressure inside the entire recovery container, allowing the liquid and tissue from the surgical area to be suctioned out through the second connector and directly returned to the recovery container. The fluid will enter the suction tube and vacuum pump, effectively reducing contamination. At this time, the second controller is used to control the opening and closing of the suction passage. During use, medical staff can operate the surgical instruments in the instrument channel. When rinsing or suction is required, the surgical instruments can be retracted into the instrument channel, and then the delivery pump can be turned on. The first controller controls the water supply tube to conduct the rinsing operation. Alternatively, the vacuum pump can be turned on and the suction tube can be conducted to conduct the suction operation. After completion, the water supply tube or suction tube can be turned off, and the surgical instruments can be extended out of the instrument channel again for operation. By using the instrument channel to insert surgical instruments and perform rinsing or suction, the number of additional channels is reduced, thereby better controlling the overall outer diameter, reducing surgical trauma, and surgical instruments can be changed through the instrument channel to meet the requirements of surgical operation and improve operational efficiency.

[0007] According to some embodiments of the present invention, the clamp includes a transfer sleeve, a hollow tube, and a first sealing ring. A first connector and a second connector are respectively disposed on the outer side of the transfer sleeve. The hollow tube is connected to one end of the transfer sleeve, and an instrument channel is formed within the hollow tube. The first sealing ring is located on the inner side of the other end of the transfer sleeve. The first sealing ring, disposed on the inner side of the other end of the transfer sleeve, provides a radial seal during surgical instrument insertion, preventing fluid leakage from the gap between the surgical instrument and the interior of the transfer sleeve.

[0008] According to some embodiments of the present invention, an annular step is provided on the inner side of the end of the transfer sleeve away from the hollow tube, and the first sealing ring is located within the annular step. The clamp further includes a pressure cap, which forms a pressure cylinder extending into the transfer sleeve. The pressure cylinder can press the first sealing ring against the annular step and cause the first sealing ring to elastically deform in the direction of the axis of the transfer sleeve. When it is necessary to insert a surgical instrument for operation, the pressure cylinder and the first sealing ring are not in contact, or are in contact but without pressure. At this time, the friction between the inner side of the first sealing ring and the surgical instrument is small, and the surgical instrument can move smoothly in the instrument channel. When it is necessary to perform flushing or suction operation, the pressure cap is pressed against the transfer sleeve, so that the pressure cylinder presses the first sealing ring against the annular step. At this time, the sealing ring is forced to produce elastic deformation in the direction of the axis of the transfer sleeve, thereby reducing its inner diameter and tightly holding the surgical instrument passing through it. This provides a dynamic seal for the surgical instrument, which can better switch different sealing states according to different functional needs, and improve the flexibility and stability of surgical operation.

[0009] According to some embodiments of the present invention, an annular groove is provided on the inner side of the end of the pressure cylinder away from the first sealing ring, and a second sealing ring is provided in the annular groove. A plurality of connecting holes are provided on the outer side of the pressure cylinder corresponding to the position of the annular groove. Spring pieces are respectively provided on the outer side of the pressure cylinder at the inner positions of the plurality of connecting holes. The plurality of spring pieces are respectively inclined away from the axis of the intermediate sleeve in the direction away from the hollow tube. A protrusion is respectively provided on the outer side of the second sealing ring corresponding to the position of the plurality of connecting holes. The plurality of protrusions abut against the plurality of spring pieces. When the pressure cylinder extends into the intermediate sleeve, the plurality of spring pieces abut against the inner side of the end of the pressure cylinder, and the second sealing ring is elastically deformed toward the axis of the intermediate sleeve through the plurality of protrusions. When surgical instruments need to be inserted for operation, the multiple spring pieces are not in contact with the end of the transfer sleeve. At this time, the second sealing ring will not be compressed and elastically deformed towards the axis of the transfer sleeve. When flushing or suction is required, when the pressure cylinder is screwed into the transfer sleeve, the spring pieces are squeezed by the inner wall of the transfer sleeve and deform inward. This causes the second sealing ring to be squeezed inward through the protrusion, resulting in radial contraction deformation. This forms a double-seal structure for the surgical instruments, improving the sealing effect between the transfer sleeve and the surgical instruments. In addition, since the spring pieces have pressure against the inner wall of the transfer sleeve after entering the transfer sleeve, they can prevent the pressure cylinder from being pushed out of the transfer sleeve by the elastic force of the first sealing ring.

[0010] According to some embodiments of the present invention, the inner sides of the first sealing ring and the second sealing ring respectively protrude from the pressure cylinder in the direction of the axis of the intermediate sleeve, and a transition groove is formed between the inner side of the pressure cylinder and the first and second sealing rings. In their natural or compressed state, the inner edges of both the first and second sealing rings protrude in the direction of the axis of the intermediate sleeve, extending beyond the inner wall of the pressure cylinder. When leakage occurs at the sealing surface between the first sealing ring and the surgical instrument, the transition groove provides space to accommodate gas or liquid, preventing gas or liquid from affecting the seal between the second sealing ring and the surgical instrument along the damaged sealing surface. Furthermore, the transition groove provides space for deformation and movement of the sealing rings when subjected to instrument compression, preventing the first and second sealing rings from aging or being damaged due to excessive compression.

[0011] According to some embodiments of the present invention, limiting ribs are provided on the inner side of the hollow tube. These limiting ribs extend axially along the hollow tube, and multiple limiting ribs are spaced apart around the hollow tube, forming an instrument movement area between them. A gap is formed between adjacent limiting ribs, allowing gas or liquid to pass through. During flushing or suction, gas or liquid can flow around the outside of the surgical instrument, passing more smoothly through the space surrounding the instrument, improving the uniformity of gas or liquid flow, and reducing dead zones. Furthermore, the multiple limiting ribs form a guide frame within the instrument channel, reducing the actual contact area between the instrument shaft and the inner wall of the channel, thereby reducing frictional resistance during instrument entry, exit, and rotation, making operation more flexible.

[0012] According to some embodiments of the present invention, the first controller includes a control box, a pipe clamp, and a pipe pressing assembly. The pipe clamp has a fixed part and a clamping part connected to each other. The fixed part and the pipe pressing assembly are respectively disposed in the control box. The water supply pipe passes through the fixed part. The pipe pressing assembly has a pressing head that can reciprocate in a linear direction. The pressing head can move to press against the clamping part and cause the clamping part to elastically deform to squeeze the water supply pipe. When it is necessary to disconnect the water flow, the pressing head extends and presses against the movable end of the clamping part, forcing the elastic clamping part to bend and deform, thereby tightly flattening the water supply pipe like pliers to achieve flow interruption. When the pressing head retracts, the clamping part elastically recovers, and the water supply pipe returns to its unobstructed state. In this way, the on / off control of the water supply pipe can be achieved by physically squeezing the hose.

[0013] According to some embodiments of the present invention, the pressure tube assembly includes a housing, a motor, a worm gear, a worm, and a lead screw. The motor is disposed within the housing and is driven by the worm. The worm gear is rotatably connected within the housing and meshes with the worm. The input end of the lead screw is connected to the worm gear, and the pressure head is connected to the output end of the lead screw. The meshing of the worm gear and the worm converts the horizontal rotation of the motor into the vertical rotation of the worm gear. Since the center of the worm gear is connected to the input end of the lead screw, the rotational motion is converted into linear motion at the output end of the lead screw, thereby driving the pressure head forward or backward. This worm gear drive has a self-locking characteristic, meaning that when the motor stops, the transmission system can automatically lock its position, and the pressure head will not retract due to internal pipe pressure or vibration, which helps ensure the reliability of the valve in the closed state.

[0014] According to some embodiments of the present invention, the motor is electrically connected to a first foot switch. During surgery, medical staff can use their foot to step on the switch to control the start and stop of the motor, thereby freeing the doctor's hands. The doctor can focus on the surgical procedure without manually switching the flushing and suction functions, facilitating the rapid change of surgical instruments to adapt to the needs of different surgical steps and improving the surgeon's operating experience.

[0015] According to some embodiments of the present invention, the fixing part and the control box are detachably connected. This detachable design greatly facilitates postoperative cleaning and disinfection. Medical staff can remove the used water pipe, along with the fixing part and the movable part, as a single module for cleaning or maintenance replacement, thus reducing maintenance difficulty and ensuring the long-term hygiene and safety of the equipment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention, wherein the arrows indicate the direction of fluid flow.

[0018] Figure 2 yes Figure 1 A schematic diagram of the AA cross-sectional structure.

[0019] Figure 3 yes Figure 2 A magnified view of part B.

[0020] Figure 4 This is a perspective view of the first controller and the second controller of the present invention.

[0021] In the attached diagram: 1-clamping device, 11-transfer sleeve, 12-first connector, 13-second connector, 14-hollow tube, 141-instrument channel, 142-limiting rib, 15-first sealing ring, 161-pressure cap, 162-pressure cylinder, 17-second sealing ring, 171-protrusion, 18-spring, 19-transition groove, 21-water storage container, 22-water delivery pipe, 23-first controller, 231-control box, 232-fixing part, 233-pipe clamping part, 234-pipe pressing assembly, 2341-pressure head, 2342-machine housing, 2343-motor, 2344-worm gear, 2345-worm, 2346-transmission screw, 24-recovery container, 25-suction tube, 26-second controller, 27-vacuum pump, 3-first foot switch. Detailed Implementation

[0022] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.

[0023] Reference Figures 1 to 3According to a first aspect of the present invention, a surgical device with replaceable instruments includes: a clamp 1 having an instrument channel 141 internally, and a first connector 12 and a second connector 13 communicating with the instrument channel 141 on the outer side of the clamp 1; and a flushing mechanism including a water storage container 21, a water supply pipe 22, a delivery pump, and a first controller 23, wherein the water storage container 21 is connected to the first connector 12 via the water supply pipe 22, and the delivery pump is disposed in the water storage container 21, the delivery pump being used to generate a water flow from the water storage container 21 to the first connector 12 within the water supply pipe 22. The first controller 23 is disposed on the water supply pipe 22 and is used to control the opening and closing of the water supply pipe 22; the suction mechanism includes a recovery container 24, a suction pipe 25, a vacuum pump 27 and a second controller 26. One end of the suction pipe 25 and the second connector 13 are respectively connected to the recovery container 24. The vacuum pump 27 is connected to the other end of the suction pipe 25. The vacuum pump 27 creates a negative pressure in the recovery container 24 through the suction pipe 25. The second controller 26 is disposed on the suction pipe 25 and is used to control the opening and closing of the suction pipe 25.

[0024] In this surgical device with replaceable instruments, one end of the clamp 1 can be inserted into the patient's body through a puncture hole in the body wall. Surgical instruments such as forceps, scissors, and separators can be inserted into the instrument channel 141 of the clamp 1. On the outer wall of the clamp 1, there are a first connector 12 and a second connector 13, both of which are connected to the internal instrument channel 141. The first connector 12 is connected to the water storage container 21 through the water supply pipe 22. The delivery pump is used to generate power to pump the saline and other liquids stored in the water storage container 21 out of the water storage container 21 and into the instrument channel 141 through the water supply pipe 22 and the first connector 12. At this time, the first controller 23 is used to control the flow of water. The second connector 13 is connected to the suction pipe 25 through the recovery container 24. When the vacuum pump 27 is working, it creates negative pressure inside the entire recovery container 24, and the liquid and tissue in the surgical area are sucked out through the second connector 13 and directly returned to the recovery container. Within 24, the instruments will not enter the suction tube 25 or vacuum pump 27, effectively reducing contamination. At this time, the second controller 26 is used to control the opening and closing of the suction passage. During use, medical staff can operate the surgical instruments in the instrument channel 141. When rinsing or suction is required, the surgical instruments can be retracted into the instrument channel 141, and then the delivery pump can be turned on. The first controller 23 controls the water supply tube 22 to conduct the rinsing operation. Alternatively, the vacuum pump 27 can be turned on and the suction tube 25 can conduct the suction operation. After completion, the water supply tube 22 or suction tube 25 can be turned off, and the surgical instruments can be extended out of the instrument channel 141 again for operation. By using the instrument channel 141 to insert surgical instruments and perform rinsing or suction, the number of additional channels is reduced, thereby better controlling the overall outer diameter, reducing surgical trauma, and surgical instruments can be replaced through the instrument channel 141 to meet the requirements of surgical operation and improve operational efficiency.

[0025] In a specific embodiment of the clamp 1, the clamp 1 includes a transfer sleeve 11, a hollow tube 14, and a first sealing ring 15. The first connector 12 and the second connector 13 are respectively disposed on the outer side of the transfer sleeve 11. The hollow tube 14 is connected to one end of the transfer sleeve 11, and an instrument channel 141 is formed within the hollow tube 14. The first sealing ring 15 is located on the inner side of the other end of the transfer sleeve 11. The first sealing ring 15, disposed on the inner side of the other end of the transfer sleeve 11, provides a radial seal when the surgical instrument is inserted, preventing liquid leakage from the gap between the surgical instrument and the interior of the transfer sleeve 11. Furthermore, the overall length of the clamp 1 is relatively small, which reduces the space occupied by the clamp 1 relative to the original surgical instrument, improving the convenience of the surgery.

[0026] In the above embodiments, the transfer sleeve 11 and the hollow tube 14 are manufactured and formed independently, and then assembled. Naturally, the transfer sleeve 11 and the hollow tube 14 can also be formed as one piece.

[0027] When the sealing performance between the first sealing ring 15 and the surgical instrument is too high, it will cause the surgical instrument to move unsmoothly. When the sealing performance between the first sealing ring 15 and the surgical instrument is too low, it will affect the normal use of the flushing and suction functions. Therefore, in this embodiment, an annular step is provided on the inner side of the end of the transfer sleeve 11 away from the hollow tube 14. The first sealing ring 15 is located in the annular step. The clamp 1 also includes a pressure cap 161. The pressure cap 161 forms a pressure cylinder 162 that extends into the transfer sleeve 11. The pressure cylinder 162 can press the first sealing ring 15 against the annular step and make the first sealing ring 15 elastically deform in the direction of the axis of the transfer sleeve 11. When surgical instruments need to be inserted for operation, the pressure cylinder 162 and the first sealing ring 15 are either not in contact or in contact but without pressure. At this time, the friction between the inner side of the first sealing ring 15 and the surgical instrument is small, and the surgical instrument can move smoothly in the instrument channel 141. When flushing or suction is required, the pressure cap 161 is pressed against the intermediate sleeve 11, so that the pressure cylinder 162 presses the first sealing ring 15 against the annular step. At this time, the sealing ring is forced to produce elastic deformation in the direction of the axis of the intermediate sleeve 11, thereby reducing its inner diameter and tightly holding the surgical instrument passing through it. This provides a dynamic seal for the surgical instrument, which can better switch different sealing states according to different functional needs, and improve the flexibility and stability of surgical operation.

[0028] To further improve the sealing between the pressure cylinder and the surgical instruments and better ensure the normal use of the flushing and suction functions, in this embodiment, an annular groove is provided on the inner side of the end of the pressure cylinder 162 away from the first sealing ring 15, and a second sealing ring 17 is provided in the annular groove. A plurality of connecting holes are provided on the outer side of the pressure cylinder 162 corresponding to the position of the annular groove. Spring pieces 18 are respectively provided on the outer side of the pressure cylinder 162 at the inner positions of the plurality of connecting holes. The plurality of spring pieces 18 are respectively inclined away from the axis of the central sleeve 11 in the direction away from the hollow tube 14. A protrusion 171 is respectively provided on the outer side of the second sealing ring 17 corresponding to the position of the plurality of connecting holes. The plurality of protrusions 171 abut against the plurality of spring pieces 18. When the pressure cylinder 162 extends into the central sleeve 11, the plurality of spring pieces 18 abut against the inner side of the end of the pressure cylinder 162, and the second sealing ring 17 is elastically deformed toward the axis of the central sleeve 11 through the plurality of protrusions 171. When surgical instruments need to be inserted for operation, the multiple spring pieces 18 are not in contact with the end of the transfer sleeve 11. At this time, the second sealing ring 17 will not be compressed and elastically deformed towards the axis of the transfer sleeve 11. When flushing or suction is required, when the pressure cylinder 162 is screwed into the transfer sleeve 11, the spring pieces 18 are squeezed by the inner wall of the transfer sleeve 11 and deform inward. This causes the second sealing ring 17 to be squeezed inward through the protrusion 171, resulting in radial contraction deformation. This forms a double-sealed structure for the surgical instruments, improving the sealing effect between the transfer sleeve 11 and the surgical instruments. In addition, since the spring pieces 18 have pressure against the inner wall of the transfer sleeve 11 after entering the transfer sleeve 11, they can prevent the pressure cylinder 162 from being pushed out of the transfer sleeve 11 by the elastic force of the first sealing ring 15.

[0029] Furthermore, the inner sides of the first sealing ring 15 and the second sealing ring 17 protrude from the pressure cylinder 162 towards the axis of the intermediate sleeve 11, and a transition groove 19 is formed between the inner side of the pressure cylinder 162 and the first sealing ring 15 and the second sealing ring 17. In their natural or compressed state, the inner edges of the first sealing ring 15 and the second sealing ring 17 both protrude towards the axis of the intermediate sleeve 11, extending beyond the inner wall of the pressure cylinder 162. When leakage occurs at the sealing surface between the first sealing ring 15 and the surgical instrument, the transition groove 19 provides space to accommodate gas or liquid, preventing gas or liquid from affecting the seal between the second sealing ring 17 and the surgical instrument along the damaged sealing surface. In addition, the transition groove 19 provides space for the sealing rings to deform and move when squeezed by the instrument, avoiding accelerated aging or damage of the first sealing ring 15 and the second sealing ring 17 due to excessive compression.

[0030] Since liquid or gas mainly passes through the gap between the inner side of the hollow tube 14 and the outer side of the surgical instrument during rinsing or aspiration operations, and the surgical instrument is difficult to maintain coaxiality within the hollow tube 14, resulting in poor uniformity of water output or air extraction, in order to better improve the performance of the rinsing or aspiration function, in this embodiment, a limiting rib 142 is provided on the inner side of the hollow tube 14. The limiting rib 142 extends along the axial direction of the hollow tube 14, and multiple limiting ribs 142 are arranged at intervals around the hollow tube 14, forming an instrument movement area between the multiple limiting ribs 142. A gap is formed between two adjacent limiting ribs 142, allowing gas or liquid to pass through. During flushing or suction, gas or liquid can flow around the outside of the surgical instrument, passing more smoothly through the space around the instrument, improving the uniformity of gas or liquid flow, and reducing flow dead zones. In addition, multiple limiting ribs 142 form a guide frame within the instrument channel 141, reducing the actual contact area between the instrument shaft and the inner wall of the channel, thereby reducing the frictional resistance when the surgical instrument moves in, out, and rotates, making operation more flexible. In practical applications, the limiting ribs 142 do not need to extend to the end of the hollow tube 14, providing more space at the end of the hollow tube 14 and reducing interference with the opening and closing of the surgical instrument.

[0031] As a specific embodiment of the first controller 23, the first controller 23 includes a control box 231, a pipe clamp and a pipe pressing assembly 234. The pipe clamp has a fixing part 232 and a pipe clamping part 233 connected to each other. The fixing part 232 and the pipe pressing assembly 234 are respectively disposed in the control box 231. The water supply pipe 22 passes through the fixing part 232. The pipe pressing assembly 234 has a pressing head 2341 that can reciprocate in a straight direction. The pressing head 2341 can move to press against the pipe clamping part 233 and cause the pipe clamping part 233 to elastically deform to squeeze the water supply pipe 22. When it is necessary to cut off the water flow, the pressure head 2341 extends and presses against the movable end of the clamping part 233, forcing the elastic clamping part 233 to bend and deform, thereby tightly flattening the water pipe 22 that passes through like pliers, thus achieving flow cut-off; when the pressure head 2341 retracts, the clamping part 233 elastically recovers, and the water pipe 22 returns to unobstructed flow. In this way, the on / off control of the water pipe 22 can be achieved by physically squeezing the hose.

[0032] As a specific embodiment of the pressure tube assembly 234, such as Figure 4As shown, the pressure tube assembly 234 includes a housing 2342, a motor 2343, a worm gear 2344, a worm 2345, and a lead screw 2346. The motor 2343 is disposed inside the housing 2342 and is drivenly connected to the worm 2345. The worm gear 2344 is rotatably connected inside the housing 2342 and meshes with the worm 2345. The input end of the lead screw 2346 is connected to the worm gear 2344, and the pressure head 2341 is connected to the output end of the lead screw 2346. Naturally, the lead screw 2346 includes a lead screw shaft and a lead screw nut threadedly connected to the lead screw shaft. The lead screw nut is slidably connected inside the housing 2342. The lead screw nut serves as the output end and is synchronously connected to the pressure head 2341, while the lead screw shaft serves as the input end and is synchronously connected to the worm gear 2344. The worm gear 2344 meshes with the worm 2345, converting the horizontal rotation of the motor 2343 into the vertical rotation of the worm gear 2344. Since the center of the worm gear 2344 is connected to the input end of the transmission screw 2346, the rotational motion is converted into the linear motion of the output end of the screw, thereby driving the pressure head 2341 forward or backward. This worm gear 2344 and worm 2345 transmission has a self-locking characteristic, that is, when the motor 2343 stops, the transmission system can automatically lock the position, and the pressure head 2341 will not move backward due to the pressure or vibration inside the pipe, which helps to ensure the reliability of the valve when it is closed.

[0033] As a specific implementation of the second controller 26, the second controller 26 may also adopt the same structure as the first controller 23, which will not be described in detail here.

[0034] To facilitate the control of the motor 2343's switch, in this embodiment, the motor 2343 is electrically connected to a first foot switch 3. During surgery, medical staff can use their foot to step on this switch to control the start and stop of the motor 2343, thereby freeing the doctor's hands. The doctor can focus on the surgical procedure without manually switching the flushing and suction functions, facilitating rapid changes of surgical instruments to adapt to different surgical steps and improving the surgeon's experience. Similarly, in practical applications, the second controller 26 is also electrically connected to a second foot switch for control.

[0035] In some embodiments, the fixing part 232 and the control box 231 are detachably connected. For example, the fixing part 232 is connected to the control box 231 by a buckle or screw, or a dovetail groove is provided on the side wall of the control box 231, and the fixing part 232 has a dovetail block. The fixing part 232 is installed inside the control box 231 by the cooperation of the dovetail block and the dovetail groove. The detachable design greatly facilitates postoperative cleaning and disinfection. Medical staff can remove the used water pipe 22, together with the fixing part 232 and the movable part, as a module for cleaning or maintenance replacement. This reduces the difficulty of maintenance and helps to ensure the long-term hygiene and safety of the equipment.

[0036] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A surgical device with replaceable instruments, characterized in that: include: The clamp (1) has an instrument channel (141) inside, and a first connector (12) and a second connector (13) connected to the instrument channel (141) are provided on the outside of the clamp (1). The flushing mechanism includes a water storage container (21), a water supply pipe (22), a delivery pump, and a first controller (23). The water storage container (21) is connected to the first connector (12) through the water supply pipe (22). The delivery pump is disposed in the water storage container (21) and is used to form a water flow from the water storage container (21) to the first connector (12) in the water supply pipe (22). The first controller (23) is disposed in the water supply pipe (22) and is used to control the opening and closing of the water supply pipe (22). The suction mechanism includes a recovery container (24), a suction tube (25), a vacuum pump (27), and a second controller (26). One end of the suction tube (25) is connected to the recovery container (24) via the second connector (13). The vacuum pump (27) is connected to the other end of the suction tube (25). The vacuum pump (27) creates a negative pressure in the recovery container (24) through the suction tube (25). The second controller (26) is located on the suction tube (25) and is used to control the opening and closing of the suction tube (25).

2. The surgical device with replaceable instruments according to claim 1, characterized in that: The clamp (1) includes a transfer sleeve (11), a hollow tube (14) and a first sealing ring (15). The first connector (12) and the second connector (13) are respectively disposed on the outside of the transfer sleeve (11). The hollow tube (14) is connected to one end of the transfer sleeve (11). The instrument channel (141) is formed inside the hollow tube (14). The first sealing ring (15) is located inside the other end of the transfer sleeve (11).

3. The surgical device with replaceable instruments according to claim 2, characterized in that: The transfer sleeve (11) has an annular step on the inner side of the end away from the hollow tube (14), and the first sealing ring (15) is located in the annular step. The clamp (1) also includes a pressure cap (161), and the pressure cap (161) forms a pressure cylinder (162) that extends into the transfer sleeve (11). The pressure cylinder (162) can press the first sealing ring (15) against the annular step and cause the first sealing ring (15) to elastically deform in the direction of the axis of the transfer sleeve (11).

4. The surgical device with replaceable instruments according to claim 3, characterized in that: An annular groove is provided on the inner side of the end of the pressure cylinder (162) away from the first sealing ring (15). A second sealing ring (17) is provided in the annular groove. A plurality of connecting holes are provided on the outer side of the pressure cylinder (162) corresponding to the position of the annular groove. Spring pieces (18) are respectively provided on the outer side of the pressure cylinder (162) at the inner position of the plurality of connecting holes. The plurality of spring pieces (18) are respectively inclined away from the axis of the intermediate sleeve (11) in the direction away from the hollow tube (14). A protrusion (171) is respectively provided on the outer side of the second sealing ring (17) corresponding to the position of the plurality of connecting holes. The plurality of protrusions (171) abut against the plurality of spring pieces (18). When the pressure cylinder (162) extends into the intermediate sleeve (11), the plurality of spring pieces (18) abut against the inner side of the end of the pressure cylinder (162), and the second sealing ring (17) is elastically deformed in the direction of the axis of the intermediate sleeve (11) through the plurality of protrusions (171).

5. A surgical device with replaceable instruments according to claim 4, characterized in that: The inner sides of the first sealing ring (15) and the second sealing ring (17) protrude from the pressure cylinder (162) in the direction of the axis of the intermediate sleeve (11), and a transition groove (19) is formed between the inner side of the pressure cylinder (162) and the first sealing ring (15) and the second sealing ring (17).

6. The surgical device with replaceable instruments according to claim 2, characterized in that: The hollow tube (14) is provided with limiting ribs (142) on the inner side. The limiting ribs (142) extend along the axial direction of the hollow tube (14). Multiple limiting ribs (142) are provided around the hollow tube (14) at intervals. The multiple limiting ribs (142) form a device movement area.

7. The surgical device with replaceable instruments according to claim 1, characterized in that: The first controller (23) includes a control box (231), a pipe clamp and a pipe pressing assembly (234). The pipe clamp has a fixed part (232) and a clamping part (233) connected to each other. The fixed part (232) and the pipe pressing assembly (234) are respectively disposed in the control box (231). The water pipe (22) passes through the fixed part (232). The pipe pressing assembly (234) has a pressing head (2341) that can reciprocate in a straight direction. The pressing head (2341) can move to press against the clamping part (233) and cause the clamping part (233) to elastically deform to squeeze the water pipe (22).

8. A surgical device with replaceable instruments according to claim 7, characterized in that: The pressure tube assembly (234) includes a housing (2342), a motor (2343), a worm gear (2344), a worm (2345), and a lead screw (2346). The motor (2343) is disposed inside the housing (2342) and is driven by the worm (2345). The worm gear (2344) is rotatably connected inside the housing (2342) and meshes with the worm (2345). The input end of the lead screw (2346) is connected to the worm gear (2344), and the pressure head (2341) is connected to the output end of the lead screw (2346).

9. A surgical device with replaceable instruments according to claim 8, characterized in that: The motor (2343) is electrically connected to a first foot switch (3).

10. A surgical device with replaceable instruments according to claim 7, characterized in that: The fixing part (232) and the control box (231) are detachably connected.

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