Endoscope lens flushing device

Abstract

The endoscope lens flushing device comprises a disposable flushing pipe, the flushing pipe is provided with an endoscope tube inserting channel and an internal flushing channel, the inner wall of the endoscope tube inserting channel is provided with a flushing hole for spraying flushing liquid to a lens, and the front end of the flushing pipe is provided with an opening for exposing the endoscope tube end in the channel. The flushing hole is communicated with the front end of the internal flushing channel, and the rear end of the internal flushing channel is a liquid inlet end; the mirror tube is further driven by an adjusting assembly to move back and forth in the mirror tube inserting channel, so that the axial relative position of the lens and the flushing tube is adjusted. And the requirement for cleaning the endoscope lens in the channel is met.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a laparoscope lens flushing device, which can clean the lens at any time during an operation. Background Art

[0002] Laparoscopic surgery is a newly developed minimally invasive method that makes it possible to perform surgery through smaller incisions. In this way, the damage to tissues is less than that of traditional surgical operations. Through a keyhole-sized incision, surgeons can insert a small light source, a camera and surgical instruments. The surgeon guides the operation of surgical instruments to perform surgery through the image transmitted to the monitor. The laparoscope includes a tube, an image transmission channel arranged inside the tube, a lens is arranged at the front end of the image transmission channel, and the lens is arranged in an inclined manner. A light source optical fiber channel is also arranged inside the tube, and a handle is arranged at the rear end of the tube. During laparoscopic surgery, the tube is inserted into the abdominal cavity for image search. During the operation, blood or grease in the abdominal cavity may contaminate the lens area, resulting in unclear surgical field. In addition, because the lens and surgical instruments are in the body, it is impossible to quickly clean the lens and restore the surgical field. To solve this problem, the conventional method is to remove the tube and clean it outside the body, which will cause the operation to be suspended and increase the operation time. At the same time, the doctor cannot observe the patient's abdominal cavity status in time, which poses a huge safety hazard. In recent years, other special trocars have appeared, which are equipped with flushing and cleaning channels. When in use, the scope tube is returned to the trocar channel to provide continuous water flow to complete the lens cleaning. They are relatively convenient to use, but the forward and backward movement of the scope tube may lead to the loss of the surgical field. After reinserting the scope tube, the surgical site needs to be found again. Summary of the invention

[0003] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a laparoscope lens flushing device to meet the requirements of cleaning the laparoscope lens in the channel.

[0004] The technical solution of the present invention is as follows: a laparoscope lens flushing device comprises a disposable flushing tube, the flushing tube is provided with a mirror tube insertion channel and an internal flushing channel, the inner wall of the mirror tube insertion channel is provided with a flushing hole for spraying flushing liquid to the laparoscope lens in the channel, an opening is provided at the front end of the flushing tube for exposing the end of the laparoscope mirror tube in the channel, the flushing hole is communicated with the front end of the internal flushing channel, and the rear end of the internal flushing channel is a liquid inlet end; an adjustment assembly is arranged on the disposable flushing tube, and the mirror tube is driven by the adjustment assembly to move forward and backward in the mirror tube insertion channel, thereby adjusting the axial relative position of the lens and the flushing tube.

[0005] By adopting the above technical solution, the adjustment assembly drives the mirror tube to slide back and forth, thereby adjusting the axial relative position of the lens and the flushing tube, and performing fine adjustment, so that the lens corresponds to the front end opening of the flushing tube, and the lens is exposed to provide better peripheral vision; and the lens is tilted to face the appropriate position of the flushing hole, and the flushing hole has a good flushing effect on the lens, meeting the requirement of cleaning the laparoscope lens in the channel, and there is no need to move the laparoscope out for cleaning.

[0006] The present invention is further configured as follows: the opening is formed by cutting into the upper end of the flushing tube and extending to the front end, the front end of the flushing tube has a surplus plate below the opening, the flushing hole is arranged on the surplus plate and faces the lens tilted backward from top to bottom.

[0007] With the above further arrangement, the lens corresponds to the opening and the surplus plate at the front end of the flushing tube, the opening facilitates the exposure of the upper end of the lens, and the surplus plate below is used to set the flushing hole to spray water on the lens.

[0008] The present invention is further configured as follows: the opening is further cut obliquely downward from the upper end of the flushing pipe toward the front end.

[0009] By further adopting the above arrangement, the cut is arranged obliquely downward, so that the opening downward cut is larger, the lens is exposed more and the field of view is better.

[0010] The present invention is further provided that: the flushing hole is a vertical hole, and the flushing hole sprays the flushing liquid upwardly in a direction perpendicular to the axial direction of the flushing pipe.

[0011] With the above further arrangement, the flushing hole can convert the flushing liquid to be ejected perpendicularly to the axis of the flushing tube to impact the lens area.

[0012] The present invention is further configured as follows: the flushing tube is in an annular structure and surrounds the mirror tube insertion channel, and the tube wall of the flushing tube is hollow to form the internal flushing channel; a sealing rubber ring in contact with the outer periphery of the mirror tube is provided on the front end of the mirror tube insertion channel.

[0013] By further adopting the above-mentioned arrangement, the formation structure of the mirror tube insertion channel and the internal flushing channel is simple, and is formed by the tubular structure of the flushing tube itself; and the sealing rubber ring can provide damping when the mirror tube is adjusted, improve the adjustment feel, and prevent blood or other liquids from seeping into the space between the flushing tube and the mirror tube.

[0014] The present invention is further provided that: the rear portion of the flushing tube has a round tube section adapted to the trocar, and the front portion is a C-shaped tube section with an open upper end, and the internal flushing channel is arranged in the tube wall at the lower end of the flushing tube.

[0015] By adopting the above further configuration, the circular tube section can be compatible with common trocars, and no special trocar is required; and the C-shaped tube section is also easy to deform, which facilitates the insertion of the mirror tube.

[0016] The present invention is further provided that: the adjustment assembly includes an adjustment gear and a transmission rack that mesh with each other, the adjustment gear is rotatably arranged on the rear end of the flushing tube, the transmission rack is arranged axially along the flushing tube, the transmission rack is installed on the laparoscope, and cooperates with the adjustment gear to drive the laparoscope to move.

[0017] By further adopting the above arrangement, the driving rack and the adjusting gear cooperate to accurately determine the distance the lens tube moves forward each time, so as to ensure that the lens can be adjusted to a suitable position.

[0018] The present invention is further configured as follows: the adjustment assembly also includes a regulator and a controller, the adjustment gear is rotatably mounted on the regulator, the regulator is arranged at the rear end of the flushing tube, and has a tube interface connected to the liquid inlet end of the internal flushing channel, the tube interface is used to connect the liquid inlet pipe, the transmission rack is arranged on the controller, the controller is detachably mounted at the rear end of the laparoscope, and a control switch is also provided on the controller.

[0019] With the above further configuration, the regulator is used to install the adjusting gear and the liquid inlet pipe, the controller is used to install the transmission rack and the control switch, and the regulator and the controller are engaged through the gear and the rack. The regulator is installed on the laparoscope to drive the mirror tube to move.

[0020] The present invention is further configured as follows: the adjuster has a gear cavity and a rack cavity, the rack cavity is connected to the gear cavity through a through port, the rear end of the rack cavity has a socket for inserting a transmission rack, the two sides of the transmission rack cooperate with the rack cavity through guide rails and guide grooves to achieve forward and backward sliding guidance, the axial ends of the gear cavity are open, the adjusting gear is inserted into the gear cavity, and adjusting knobs and baffles are respectively provided at both ends of the adjusting gear. The adjusting knob and the baffle can limit the adjusting gear from escaping from the gear cavity toward the opening, the back of the adjusting knob has an arc groove, and the adjuster has a limit block on the side corresponding to the back of the adjusting knob, and the limit block is arranged in the arc groove and slides relative to the arc groove.

[0021] By further adopting the above arrangement, a gear and a rack are respectively arranged through the gear cavity and the rack cavity, the guide rail and the guide groove cooperate to realize the forward and backward sliding guidance of the transmission rack, and the limit block and the arc groove cooperate to realize the limitation of the rotation angle of the adjustment gear.

[0022] The present invention is further configured as follows: the controller is also provided with a tube clamp and a U-shaped clip, the tube clamp includes a first clamp and a second clamp, a clamp hole for the mirror tube to pass through is formed between the first clamp and the second clamp, the two clamps are driven by a locking member to clamp or release the mirror tube, and the U-shaped clip can be clamped on a positioning column provided on the laparoscope handle.

[0023] With the above-mentioned further arrangement, the controller is clamped on the laparoscope, and the two clips are driven to move closer or farther apart by a locking member, thereby changing the size of the clamping hole to clamp or loosen the mirror tube, and a U-shaped clip is clamped on a positioning column provided on the laparoscope handle to ensure the direction of the laparoscope insertion into the flushing tube so that the lens is tilted toward the flushing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of a flushing device according to a specific embodiment of the present invention; Figure 2 This is a diagram of the flushing device and the laparoscope plug-in assembly according to a specific embodiment of the present invention; Figure 3 This is a diagram of the open structure of the first flushing pipe in a specific embodiment of the present invention; Figure 4 This is a diagram of the open structure of the second flushing pipe in a specific embodiment of the present invention; Figure 5 This is a structural diagram of the flushing pipe opening in a specific embodiment of the present invention; Figure 6 It is a structural diagram of a regulator in a specific embodiment of the present invention; Figure 7 This is a diagram of the internal structure of a regulator in a specific embodiment of the present invention; Figure 8 It is a structural diagram of the gear cavity and rack cavity of the regulator in a specific embodiment of the present invention; Fig. 9 This is a structural diagram of an adjusting knob, an adjusting gear, and a baffle in a specific embodiment of the present invention; Fig.10 It is a structural diagram of a controller in a specific embodiment of the present invention; Fig.11 It is a structural diagram of a clamping hole in a specific embodiment of the present invention; Fig.12 4 is a structural diagram of a laparoscope in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0025] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-12As shown, a laparoscope lens flushing device of the present invention comprises a disposable flushing tube 2 adapted to be mounted on a laparoscope lens tube 11, the flushing tube 2 having a lens tube insertion channel 21 and an internal flushing channel 22, the flushing tube 2 presenting an annular structure to enclose the lens tube insertion channel 21, and the tube wall of the flushing tube 2 is hollow to form the internal flushing channel 22, a sealing rubber ring in contact with the outer periphery of the lens tube 11 is provided on the front end of the lens tube insertion channel 21, the sealing rubber ring can be arranged according to the shape of the open cutout, a flushing hole 211 for spraying flushing liquid to the laparoscope lens 12 in the channel is provided on the inner wall of the lens tube insertion channel 21, and the flushing tube 2 The front end is provided with an opening 23 for exposing the end of the mirror tube 11 in the channel, the opening 23 is formed by cutting into the upper end of the flushing tube 2 and extending to the front end, the front end of the flushing tube 2 has a surplus plate 24 below the opening 23, the flushing hole 211 is specifically arranged on the surplus plate 24 and faces the lens 12 tilted from top to bottom and backward, the opening 23 is also cut downwardly from the upper end of the flushing tube 2 to the front end, the rear part of the flushing tube 2 has a circular tube section 25 adapted to the puncture device, and the front part is a C-shaped tube section 26 with an upper end opening, the internal flushing channel 22 is arranged in the lower end tube wall of the flushing tube 2, and the front part of the flushing tube 2 can also be a circular tube section. The flushing hole 211 is a vertical hole, and the flushing hole 211 sprays flushing liquid upward perpendicular to the axial direction of the flushing tube, the flushing hole 211 is connected with the front end of the internal flushing channel 22, and the rear end of the internal flushing channel 22 is the liquid inlet end.

[0027] The regulator group 3 is arranged on the disposable flushing tube 2, and the mirror tube 11 is driven by the regulator group 3 to move forward and backward in the mirror tube insertion channel 21, so as to adjust the axial relative position of the lens 12 and the flushing tube 2. The regulator group 3 includes an adjusting gear 31 and a transmission rack 32 that mesh with each other. The adjusting gear 31 is rotatably arranged on the rear end of the flushing tube 2, and the transmission rack 32 is arranged along the axial direction of the flushing tube 2. The transmission rack 32 is installed on the laparoscope 1 and cooperates with the adjusting gear 31 to drive the laparoscope 1 to move; the regulator group 3 also includes a regulator 4 and a controller 6, the adjusting gear 31 is rotatably arranged on the regulator 4, the regulator 4 is fixedly arranged on the rear end of the flushing tube 2, and has a pipe interface 41 connected to the liquid inlet end of the internal flushing channel, and the pipe interface 41 is used to connect the liquid inlet pipe 5, the transmission rack 32 is arranged on the controller 6, and the controller 6 is detachably installed on the rear end of the laparoscope 1. A control switch 61 is also arranged on the controller 6. The regulator 4 has a gear cavity 42 and a rack cavity 43. The rack cavity 43 is connected to the gear cavity 42 through a through port 44. The through port 44 facilitates the meshing of the gear and the rack. The rear end of the rack cavity 43 has a socket for inserting the transmission rack 32. The two sides of the transmission rack 32 cooperate with the rack cavity 43 through guide rails and guide grooves to achieve forward and backward sliding guidance. There are guide grooves 321 on both sides of the transmission rack 32, and guide rails 431 on the two opposite inner walls of the rack cavity 43. The guide rails 431 are set in the guide grooves 321. The gear cavity 42 is open at both axial ends, and the adjusting gear 31 is inserted into the gear cavity 42. An adjusting knob 311 and a baffle 312 are respectively provided at both axial ends of the adjusting gear 31. The adjusting gear is fixedly or detachably connected to the adjusting knob or the baffle, such as the baffle is spirally mounted on the adjusting gear, or the baffle is snap-connected with the adjusting gear to achieve detachability. The adjusting knob 311 and the baffle 312 have larger outer diameters and are located at both ends of the gear cavity to limit the adjusting gear 42 from escaping from the gear cavity 42 toward the opening. The adjusting knob 311 has an arc groove 3111 on the back side, and the regulator 4 has a limit block 45 on the side corresponding to the back side of the adjusting knob. The limit block 45 is arranged in the arc groove 3111 and is slidably arranged relative to the arc groove 3111. The controller 6 also has a tube clamp 62 and a U-shaped clip 63. The tube clamp 62 includes a first clip 621 and a second clip 622. A clamp hole 623 for the mirror tube to pass through is formed between the first clip 621 and the second clip 622. The two clips are driven by a locking member 624 to clamp or loosen the mirror tube 11. The locking member 624 has a rod column 6241 and a tightening head 6242 located at one end of the rod column. The rod column 6241 passes through the first clip 621 and is threadedly connected with the second clip 622. The tightening head 6242 also abuts against the outer side of the first clip 621. The tightening head drives the rod column to rotate and tighten or loosen the two clips. The U-shaped clip 63 can be clamped on the positioning column 131 provided on the laparoscope handle 13. The transmission rack is arranged at the front end of the controller, and the U-shaped clip is arranged at the rear end of the controller.

[0028] The internal flushing channel of the flushing tube may be provided with one, which is connected to the air pump (which can inhale or jet) and the water supply pump at the same time, for flushing the lens of the laparoscope or absorbing the body fluid; or provided with two, respectively connected to the air pump and the water supply pump, or provided with more than two. Multiple internal flushing channels are connected. One or more flushing holes may be provided, for ejecting flushing liquid or sucking body fluid. The flushing liquid may be sterile saline or water. The internal flushing channel can be used as an air supply channel to provide high-pressure airflow to quickly blow away the residual water stains near the lens; or as an air suction channel, the residual water stains near the lens can be quickly sucked away. The flushing tube has a heating and constant temperature function for heating the flushing liquid in the internal flushing channel. For example, heating is performed by a heating wire or a heating plate. The water flushing or absorbing body fluid can be controlled by the control switch 61. The control switch is a three-stage bridge switch. When the switch is horizontal, the flushing, jet or suction functions are turned off; pressing one side of the switch activates the flushing function; similarly, pressing the other side of the switch activates the jet or suction function.

[0029] The flushing tube of the device has a simple structure and low cost. It can be manufactured through conventional processing methods such as 3D printing, injection molding, and extrusion, and is compatible with ordinary trocars and can be customized according to the length of the laparoscope.

[0030] During assembly, the laparoscope tube 11 is inserted into the tube insertion channel 21 of the flushing tube 2 of the device, and then the controller 6 in the adjustment assembly 3 provided on the rear end of the flushing tube 2 is installed on the laparoscope, specifically, the tube clamp 62 is clamped on the rear end of the tube 11, and the U-shaped clip 63 is clamped on the positioning column 131, so as to ensure that the direction of the tube 11 inserted into the flushing tube 2 makes the lens 12 tilted toward the flushing hole; After that, the flushing tube and the mirror tube are put into a common puncture device, and the circular tube section 25 of the flushing tube and the sealing ring of the puncture device are sealed to prevent gas leakage during surgery. The gear is rotated by turning the adjustment knob 311 to adjust the axial relative position of the lens 12 and the flushing tube 2, and fine-tuning is performed to facilitate the lens 12 to correspond to the front end opening 23 of the flushing tube 2, and the lens 12 is exposed to the surrounding field of vision for a better effect; and it is convenient for the lens 12 to tilt to face the appropriate position of the flushing hole 211, and the flushing hole 211 has a good flushing effect on the lens 12, which meets the requirement of cleaning the laparoscope lens in the channel, and there is no need to move the laparoscope out for cleaning.

[0031] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, in the present invention, the descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "several" is at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "couple", "connect", and "fix" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A laparoscope lens flushing device, characterized in that: The invention comprises a disposable flushing tube (2), the flushing tube (2) having a mirror tube insertion channel (21) and an internal flushing channel (22), the inner wall of the mirror tube insertion channel (21) having a flushing hole (211) for spraying flushing liquid to a laparoscope lens (12) in the channel, the front end of the flushing tube (2) being provided with an open opening (23) for exposing the end of the laparoscope mirror tube (11) in the channel, the flushing hole (211) being in communication with the front end of the internal flushing channel (22), the rear end of the internal flushing channel (22) being a liquid inlet end; an adjustment assembly (3) is arranged on the disposable flushing tube (2), the mirror tube (11) being driven by the adjustment assembly (3) to move forward and backward in the mirror tube insertion channel (21), thereby adjusting the axial relative position of the lens (12) and the flushing tube (2).

2. The laparoscope lens flushing device according to claim 1, characterized in that: The opening (23) is formed by cutting into the upper end of the flushing tube (2) and extending toward the front end. The front end of the flushing tube (2) has a residual plate (24) below the opening (23). The flushing hole (211) is arranged on the residual plate (24) and faces the lens (12) which is inclined from top to bottom and backward.

3. The laparoscope lens flushing device according to claim 2, characterized in that: The opening (23) is also cut obliquely downward from the upper end of the flushing pipe (2) toward the front end.

4. The laparoscope lens flushing device according to claim 2, characterized in that: The flushing hole (211) is a vertical hole, and the flushing hole (211) sprays flushing liquid upward in a direction perpendicular to the axial direction of the flushing pipe.

5. The laparoscope lens flushing device according to any one of claims 1 to 4, characterized in that: The flushing tube (2) is in an annular structure and surrounds the mirror tube insertion channel (21), and the tube wall of the flushing tube (2) is hollow to form the internal flushing channel (22); a sealing rubber ring is provided at the front end of the mirror tube insertion channel (21) and contacts the outer periphery of the mirror tube (11).

6. The laparoscope lens flushing device according to claim 5, characterized in that: The flushing tube (2) has a circular tube section (25) adapted to the trocar at the rear, and a C-shaped tube section (26) with an open upper end at the front. The internal flushing channel (22) is arranged in the tube wall at the lower end of the flushing tube (2).

7. The laparoscope lens flushing device according to any one of claims 1 to 4, characterized in that: The adjustment assembly (3) comprises an adjustment gear (31) and a transmission rack (32) which mesh with each other. The adjustment gear (31) is rotatably arranged on the rear end of the flushing tube (2). The transmission rack (32) is arranged axially along the flushing tube (2). The transmission rack (32) is mounted on the laparoscope (1) and cooperates with the adjustment gear (31) to drive the laparoscope (1) to move.

8. The laparoscope lens flushing device according to claim 7, characterized in that: The adjustment assembly (3) further comprises a regulator (4) and a controller (6), wherein the adjustment gear (31) is rotatably mounted on the regulator (4), the regulator (4) is arranged at the rear end of the flushing tube (2), and has a tube interface (41) thereon which is connected to the liquid inlet end of the internal flushing channel, the tube interface (41) being used to connect to the liquid inlet tube (5), the transmission rack (32) being arranged on the controller (6), the controller (6) being detachably mounted on the rear end of the laparoscope (1), and a control switch (61) being further provided on the controller (6).

9. The laparoscope lens flushing device according to claim 8, characterized in that: The regulator (4) comprises a gear cavity (42) and a rack cavity (43); the rack cavity (43) is connected to the gear cavity (42) via a through port (44); a rear end of the rack cavity (43) comprises a socket for inserting a transmission rack (32); two sides of the transmission rack (32) cooperate with the rack cavity (43) via guide rails and guide grooves to achieve forward and backward sliding guidance; the gear cavity (42) has openings at both axial ends; the regulating gear (31) is inserted into the gear cavity (42); An adjusting knob (311) and a blocking piece (312) are respectively provided at the ends thereof, and the adjusting knob (311) and the blocking piece (312) can limit the adjusting gear (42) from escaping from the gear cavity (42) toward the opening; an arc-shaped groove (3111) is provided on the back of the adjusting knob (311); and the adjuster (4) has a limiting block (45) on one side corresponding to the back of the adjusting knob; the limiting block (45) is arranged in the arc-shaped groove (3111) and is slidably arranged relative to the arc-shaped groove (3111).

10. The laparoscope lens flushing device according to claim 8, characterized in that: The controller (6) further comprises a tube clamp (62) and a U-shaped clip (63); the tube clamp (62) comprises a first clip (621) and a second clip (622); a clamp hole (623) for the mirror tube to pass through is formed between the first clip (621) and the second clip (622); the two clips are driven by a locking member (624) to clamp or release the mirror tube (11); and the U-shaped clip (63) can be clamped on a positioning column (131) provided on the laparoscope handle (13).

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