A suction irrigator for minimally invasive surgery

Abstract

The application discloses a suction and irrigation device for minimally invasive surgery, comprising a hand-held shell, and a pipeline assembly, a suction pipeline and an irrigation pipeline arranged inside the hand-held shell, wherein the pipeline assembly comprises an extension pipeline, a connecting pipeline arranged at one end of the extension pipeline, and a channel adjusting column which is clamped inside one end of the connecting pipeline through cooperation of a spring; one end of the extension pipeline is arranged outside the hand-held shell, and the other end is arranged inside the hand-held shell and connected with one end of the connecting pipeline. By adopting the double-channel design of the suction pipeline and the irrigation pipeline, pipeline pollution caused by shared channels and the pollution of the irrigation liquid can be avoided; in the structural design, the subsequent suction pipeline and the irrigation pipeline are fused in the same pipeline, so that the volume limitation has little influence on actual application, and thus the overall structural design of the irrigation device is more beneficial to the gripping operation of medical staff.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of surgical instruments, in particular to a suction and irrigation device for minimally invasive surgery. BACKGROUND

[0002] Minimally invasive surgery refers to the surgery using laparoscopes, thoracoscopes and other modern medical instruments and related equipment, which has the advantages of small trauma, light pain and fast recovery. With the continuous development of minimally invasive surgery in the medical industry and the continuous progress of science and technology, doctors try to make the cleaning and processing of the wound more and more precise, especially the delicate surgery of the key parts of the body, such as neurosurgery, spine surgery, ear-nose-throat cosmetic surgery, hand surgery and other departments, which requires continuous irrigation of the tissue and continuous suction of the waste liquid at the surgical site, so a special suction and irrigation device is needed.

[0003] Due to the few and small channels into the human body in minimally invasive surgery, the cables and pipelines of the monitor and surgical instruments are used. The existing suction and irrigation device design limits the suction channel and the irrigation channel in the pipeline, and the irrigation and infusion and suction are shared channels or double channels during the surgery. When it is a shared channel, blood and cell tissues adhere to the channel during the suction process, causing the blood and cell tissues to be mixed into the irrigation liquid flow and brought back into the body cavity. This defect causes the irrigation liquid to be contaminated, so that the blood and cell tissues irrigated back into the body have to be further sucked out, and the process of repeated irrigation and suction is wasted, which wastes the surgery time and the irrigation solution.

[0004] When it is a double channel, although the problem of the shared channel is solved, the structure design and actual application are limited, and two separate pipelines are spliced, so that the volume is limited, and the structure is not conducive to the holding operation of medical personnel during the surgery. After the suction pipeline sucks the waste liquid, the blood or cell tissues adhering to the channel inside the pipeline are easy to accumulate, and the existing technology cannot backflush the suction pipeline in time.

[0005] During the minimally invasive surgery, forceps are usually used to clamp, grasp and fix the tissue. It is very inconvenient to switch between the suction and irrigation device and the forceps, and the switching process may cause the risk of secondary injury. When the forceps need to be rotated during the operation in the body cavity, the whole forceps need to be adjusted in angle, so that the medical personnel need to change the posture and operation mode.

[0006] Therefore, it is necessary to improve the irrigation liquid pollution, the double pipeline cannot backflush, the forceps and the suction and irrigation device cannot be integrated, and the forceps need to change the posture and operation mode in the prior art to solve the above problems. SUMMARY

[0007] The present application overcomes the deficiencies of the prior art and provides a suction and irrigation device for minimally invasive surgery.

[0008] The pipe assembly comprises an extension pipe and a connecting pipe arranged at one end of the extension pipe, and a channel adjusting column which is clamped in the interior of one end of the connecting pipe through the cooperation of a spring.

[0009] One end of the extension pipe is arranged outside the handheld housing, the other end is arranged inside the handheld housing and connected to one end of the connecting pipe, the interior of the extension pipe is provided with a suction channel and a plurality of irrigation channels, the interior of the connecting pipe is provided with a suction connecting cavity, the suction channel, the suction connecting cavity and the suction pipe are sequentially communicated.

[0010] The suction connecting cavity is sequentially provided with a plurality of irrigation connecting pipes, a converging pipe and a corrugated pipe; the irrigation adjusting groove at one end of the suction channel is arranged close to the channel adjusting column, one end of the plurality of irrigation connecting pipes is communicated with one end of the plurality of irrigation channels, one end of the corrugated pipe is communicated with one end of the irrigation adjusting groove; the bottom of the irrigation adjusting groove is communicated with the interior of the irrigation pipe.

[0011] The top interior of the connecting pipe is provided with a backflush adjusting assembly for switching irrigation or backflush.

[0012] In a preferred embodiment of the present application, the plurality of irrigation channels are uniformly distributed in the circumferential direction of the suction channel; the backflush adjusting assembly comprises a semicircular sheet gear which is rotationally connected to the interior of the middle part of the connecting pipe.

[0013] The semicircular sheet gear is coaxially arranged with the extension pipe and is respectively provided with a suction communication hole, a plurality of irrigation communication holes and a plurality of backflush grooves in the interior; the plurality of irrigation communication holes and the plurality of backflush grooves are uniformly distributed in a circumferential array around the suction communication hole, the irrigation communication holes and the backflush grooves are arranged at intervals, the number of the irrigation communication holes and the backflush grooves is consistent with the number of the irrigation channels, the suction communication hole is communicated with the suction channel, and one end of the backflush groove is communicated with the suction communication hole.

[0014] In a preferred embodiment of the present application, the backflush adjusting assembly further comprises a sector gear arranged at the top end of the semicircular sheet gear and a lever fixed at the top end of the sector gear; the semicircular sheet gear is engaged with the sector gear, and the two sides of the bottom of the lever are rotationally connected to the interior of the connecting pipe.

[0015] In a preferred embodiment of the present application, one end of the dialing rod is located outside the handheld shell, and the angle between the side of the dialing rod and the inner side of the handheld shell between the leftmost end and the rightmost end is 90 degrees.

[0016] In a preferred embodiment of the present application, the shape of the flushing adjusting groove is F-shaped, and the diameter of the two ends of the bottom of the flushing adjusting groove is the same as the diameter of the inside of the flushing pipeline.

[0017] In a preferred embodiment of the present application, the inside of the flushing pipeline is provided with a valve for opening and closing the flushing pipeline or adjusting the flow rate of the flushing pipeline.

[0018] In a preferred embodiment of the present application, the side of the extension pipeline is provided with a clamping and rotating mechanism, which comprises: a movable pipe sleeved on the outside of the extension pipeline, a rotating connecting assembly fixed on the side of the movable pipe, and a movable plate hinged inside the handheld shell; one end of the movable pipe located outside the handheld shell is provided with an operating clamp, one end of the movable plate located outside the handheld shell is provided with a handle, and the side of the movable plate located inside the handheld shell is provided with a connecting plate.

[0019] In a preferred embodiment of the present application, the rotating connecting assembly comprises: a rotating dial ring fixed on the side of the movable pipe, a connecting column fixed on one end of the rotating dial ring, and a clamping column fixed on one end of the connecting column; the rotating dial ring is located outside the handheld shell, the connecting column is clamped inside the handheld shell, the cross section shape of the two ends of the clamping column is concave, and the clamping column is located between the connecting plates, and the connecting plates are clamped inside the clamping column through bolts and nuts or screws.

[0020] In a preferred embodiment of the present application, the shape of the side of the operating clamp towards the side of the extension pipeline is sawtooth-shaped.

[0021] In a preferred embodiment of the present application, a plurality of sealing rings are arranged between the side of the channel adjusting column and the inside of the connecting pipeline, and between the inside of the connecting pipeline and the side of the semicircular piece gear.

[0022] The present application solves the defects in the background art and has the following beneficial effects:

[0023] (1) The present application provides a suction and irrigation device for minimally invasive surgery, by adopting a double-channel design for the suction and irrigation channels, it can avoid the contamination of the shared channel and the resulting contamination of the irrigation fluid, and in terms of structural design, the subsequent suction and irrigation channels are integrated into the same channel, which has little impact on the volume restriction in actual application, thereby making the overall structural design of the irrigation device more suitable for medical personnel to hold and operate.

[0024] (2) In the present application, a backflush adjustment assembly is provided between the subsequent suction and irrigation channels, so that medical personnel can adjust the flow direction between the irrigation channels at any time, and when the flow direction between the irrigation channels is adjusted to flow into the suction channel, the irrigation fluid can accelerate the flow rate in the suction channel after being connected to the suction channel under high pressure during the suction of waste liquid in the suction channel, thereby preventing the flow rate from being too small and preventing the suction of cell tissue and causing blockage, and when the suction channel is not used to suction waste liquid, the irrigation fluid can clean the residual blood and cell tissue in the suction channel after being connected to the suction channel under high pressure, further preventing the accumulation of cell tissue in the channel and causing blockage, thereby preventing the increase in surgery time caused by problems with the equipment during surgery.

[0025] (3) In the present application, a flushing adjustment groove is provided inside the channel adjustment column, and medical personnel can press the channel adjustment column, and through the cooperation of the bellows and the flushing adjustment groove, the irrigation channel can always be kept in a connected state, and during the stretching or pressing of the bellows, one end of the channel adjustment column can realize the connection or closure of the suction channel, and a valve is provided inside the irrigation channel to control the opening and closing or adjust the flow rate of the irrigation channel, thereby keeping the external irrigation or suction device in an open state during surgery, and the device can integrate the functions of opening and closing or adjusting the flow rate between the channels at any time, so that medical personnel can focus more on surgery during surgery without repeatedly adjusting their posture to operate the external device.

[0026] (4) In the present application, a clamping and rotating mechanism is provided on the side of the extension channel, and medical personnel can hold the handle during surgery, and through the cooperation of the movable plate, the connecting plate, the rotating connection assembly and the movable tube, the operation clamp can be closed towards the side of the extension channel, thereby achieving the functions of clamping, grabbing and fixing tissues, integrating the functions of the clamp with the structure of the suction and irrigation device, reducing the switching of tools in the body cavity during surgery, thereby reducing the risk of secondary injury during switching, and saving time during surgery to some extent and reducing the work intensity of medical personnel.

[0027] (5) The present application is provided with a rotating connection assembly in the clamping rotating mechanism, medical staff can manually rotate the rotating ring, and the synchronous rotation of the movable pipe can change the position of the operating clamp on the side of the extension pipe, and when the angle of the clamping operation in the body cavity needs to be changed, the medical staff does not need to adjust the angle of the device as a whole, and does not need to change the posture and operation mode back and forth, so as to realize the adjustment of the position of the operating clamp, and further improve the practicability and convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings;

[0029] Figure 1 is a front view structure diagram of the suction and irrigation device of the preferred embodiment of the present application;

[0030] Figure 2 is an internal structure diagram of the hand-held shell of the preferred embodiment of the present application;

[0031] Figure 3 is a semi-section structure diagram of the suction and irrigation device of the preferred embodiment of the present application;

[0032] Figure 4 is a section structure diagram of A-A in the preferred embodiment of the present application; Figure 3

[0033] Figure 5 is a section structure diagram of B-B in the preferred embodiment of the present application; Figure 3

[0034] Figure 6 is an enlarged structure diagram of A in the preferred embodiment of the present application; Figure 3

[0035] Figure 7 is an enlarged structure diagram of B in the preferred embodiment of the present application; Figure 3

[0036] ​​​​In the diagram: 1. Handheld housing; 2. Extension pipe; 21. Connecting pipe; 211. Suction connecting chamber; 22. Channel adjusting column; 221. Flushing adjusting groove; 23. Suction channel; 24. Flushing channel; 25. Flushing connecting pipe; 26. Connecting pipe; 27. Corrugated pipe; 3. Suction pipe; 31. Flushing pipe; 311. Valve; 4. Semi-circular gear; 41. Sector gear; 42. Lever; 43. Suction connecting hole; 44. Flushing connecting hole; 45. Backflush groove; 5. Movable tube; 51. Movable plate; 52. Operating clamp; 53. Handle; 54. Connecting plate; 6. Rotating ring; 61. Connecting column; 62. Snap-fit ​​column. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] As shown in Figure 1 and Figure 2 , a suction and irrigation device for minimally invasive surgery comprises a hand-held housing 1, and a pipe assembly, a suction pipe 3 and an irrigation pipe 31 arranged inside the hand-held housing 1.

[0042] It should be noted that the suction pipe 3 and the irrigation pipe 31 are arranged inside the hand-held housing 1 near the bottom, and a part of the bottom of the suction pipe 3 and the irrigation pipe 31 is located outside the hand-held housing 1, and the part located outside the hand-held housing 1 is provided with a connection for external suction equipment and irrigation equipment, and the suction pipe 3 and the irrigation pipe 31 are in contact and arranged in parallel.

[0043] According to the embodiment of the present application, as shown in Figure 3 , Figure 4 and Figure 6 , the pipe assembly comprises an extension pipe 2, a connecting pipe 21 arranged at one end of the extension pipe 2, and a channel adjusting column 22 which is fitted and clamped inside one end of the connecting pipe 21 through a spring; one end of the extension pipe 2 is arranged outside the hand-held housing 1, and the other end is arranged inside the hand-held housing 1 and connected with one end of the connecting pipe 21, the inside of the extension pipe 2 is provided with a suction channel 23 and a plurality of irrigation channels 24, the inside of the connecting pipe 21 is provided with a suction connecting cavity 211, the suction channel 23, the suction connecting cavity 211 and the suction pipe 3 are sequentially communicated.

[0044] A plurality of irrigation connecting pipes 25, a through pipe 26 and a corrugated pipe 27 are sequentially arranged inside the suction connecting cavity 211; an irrigation adjusting groove 221 of the channel adjusting column 22 is close to one end of the suction channel 23, one end of the plurality of irrigation connecting pipes 25 is communicated with one end of the plurality of irrigation channels 24, and one end of the corrugated pipe 27 is communicated with one end of the irrigation adjusting groove 221; the bottom of the irrigation adjusting groove 221 is communicated with the inside of the irrigation pipe 31.

[0045] It should be noted that the inside of the hand-held shell 1 connected with the connecting pipe 21 is C-shaped, the spring is arranged at the clamping position of the connecting pipe 21 and the channel adjusting column 22, an independent suction process is formed through the suction channel 23, the suction connecting cavity 211 and the suction pipe 3, an independent flushing process is formed through the flushing channel 24, the flushing connecting pipe 25, the converging pipe 26, the corrugated pipe 27, the flushing adjusting groove 221 and the flushing pipe 31, and the design of the double channels is realized, so that the pipe pollution caused by the shared channel and the flushing liquid pollution can be avoided, the suction pipe 3 and the flushing pipe 31 are fused in the same pipe in the subsequent channel in the structural design, the influence of the volume limitation on the actual application is small, and the overall structural design of the flusher is more beneficial to the gripping operation of the medical staff.

[0046] According to the embodiment of the present application, as shown in Figure 3 、 Figure 4 and Figure 5 , the backflush adjusting assembly for switching flushing or backflushing is arranged at the top inside of the connecting pipe 21, and the plurality of flushing channels 24 are uniformly distributed in the circumferential direction of the suction channel 23; the backflush adjusting assembly comprises a semicircular sheet gear 4 rotationally connected to the middle part of the inside of the connecting pipe 21.

[0047] The semicircular sheet gear 4 is coaxially arranged with the extension pipe 2, and the inside is respectively provided with a suction communication hole 43, a plurality of flushing communication holes 44 and a plurality of backflush grooves 45; the plurality of flushing communication holes 44 and the plurality of backflush grooves 45 are uniformly distributed in the circumferential array around the suction communication hole 43, the flushing communication holes 44 and the backflush grooves 45 are arranged at intervals, the number of the flushing communication holes 44 and the backflush grooves 45 is consistent with the number of the flushing channels 24, the suction communication hole 43 is in communication with the suction channel 23, and one end of the backflush groove 45 is in communication with the suction communication hole 43.

[0048] It should be noted that the shape and size of the flushing communication hole 44 are consistent with the shape and size of the flushing channel 24, the shape and size of the backflush groove 45 and the contact end of the flushing channel 24 are consistent with the shape and size of the flushing channel 24, and the medical staff can adjust the butt joint of the flushing communication hole 44 and the flushing channel 24, or the butt joint of the backflush groove 45 and the flushing channel 24, thereby adjusting the flow direction between the pipes. When the flow direction between the flushing channels 24 is adjusted to flow into the suction channel 23, during the suction of the waste liquid in the suction pipe 3, the flushing liquid in the flushing channel 24 can be rapidly connected to the suction channel 23 under high pressure, thereby accelerating the flow rate in the suction pipe 3, preventing the flow rate in the suction pipe 3 from being too small, and preventing the suction of the cell tissue from causing blockage. When the suction pipe 3 does not perform the suction of the waste liquid, the flushing liquid in the flushing channel 24 can be connected to the suction channel 23 under high pressure, thereby cleaning the residual blood and cell tissue in the suction pipe 3, further preventing the accumulation of the cell tissue in the pipe from causing blockage, and preventing the increase of the operation time caused by the problems of the equipment during the operation.

[0049] Embodiment 1

[0050] The plurality of flushing channels 24 are uniformly distributed in the circumferential direction of the suction channel 23, the angle between adjacent flushing channels 24 is 180°, the plurality of flushing communication holes 44 and the plurality of backflush grooves 45 are uniformly distributed in the circumferential array around the suction communication hole 43, and the flushing communication hole 44 and the backflush groove 45 are arranged at intervals, the angle between adjacent flushing communication holes 44 and backflush grooves 45 is 90°, and the number of flushing channels 24, flushing communication holes 44 and backflush grooves 45 is two.

[0051] Embodiment 2

[0052] The plurality of flushing channels 24 are uniformly distributed in the circumferential direction of the suction channel 23, the angle between adjacent flushing channels 24 is 120°, the plurality of flushing communication holes 44 and the plurality of backflush grooves 45 are uniformly distributed in the circumferential array around the suction communication hole 43, and the flushing communication hole 44 and the backflush groove 45 are arranged at intervals, the angle between adjacent flushing communication holes 44 and backflush grooves 45 is 60°, and the number of flushing channels 24, flushing communication holes 44 and backflush grooves 45 is three.

[0053] Embodiment 3

[0054] The plurality of flushing channels 24 are uniformly distributed in the circumferential direction of the suction channel 23, the angle between adjacent flushing channels 24 is 90°, the plurality of flushing communication holes 44 and the plurality of backflush grooves 45 are uniformly distributed in the circumferential array around the suction communication hole 43, and the flushing communication hole 44 and the backflush groove 45 are arranged at intervals, the angle between adjacent flushing communication holes 44 and backflush grooves 45 is 45°, and the number of flushing channels 24, flushing communication holes 44 and backflush grooves 45 is four.

[0055] According to the embodiment of the present application, as shown in Figure 1 and Figure 5 The backflush adjusting assembly further comprises a sector gear 41 arranged at the top end of the half-round gear 4, and a lever 42 fixed at the top end of the sector gear 41; the half-round gear 4 is engaged with the sector gear 41, and the two sides of the bottom of the lever 42 are rotatably connected with the inner side of the connecting pipe 21.

[0056] It should be noted that one end of the lever 42 is located outside the handheld shell 1, the side of the lever 42 and the inner side of the handheld shell 1 contact the included angle between the leftmost end and the rightmost end, which is the same as the angle between the adjacent flushing communication hole 44 and the backflush groove 45; manually moving the lever 42 can make the bottom sector gear 41 engaged with the half-round gear 4, and then the half-round gear 4 rotates, thereby switching the internal flushing communication hole 44 and the backflush groove 45.

[0057] According to the embodiment of the present application, as shown in Figure 1 , Figure 2 and Figure 3 The flushing adjusting groove 221 is in the shape of F, and the diameter of the two ends of the bottom of the flushing adjusting groove 221 is the same as the diameter of the inside of the flushing pipe 31. The inner side of the flushing pipe 31 is provided with a valve 311 for opening and closing the flushing pipe 31 or adjusting the flow rate of the flushing pipe 31.

[0058] It should be noted that the flushing adjusting groove 221 can be divided into a bottom first butt joint groove, a bottom second butt joint groove and a side butt joint groove which are in communication with each other, the bottom second butt joint groove is located between the bottom first butt joint groove and the side butt joint groove, the side butt joint groove is connected with one side of the corrugated pipe 27, the distance between the outermost end of the bottom second butt joint groove and the side butt joint groove is the same as the distance between the suction pipe 3 and the internal passage of the flushing pipe 31, the distance between the suction pipe 3 and the internal passage of the flushing pipe 31 is not less than the diameter of the bottom second butt joint groove plus the distance between the bottom first butt joint groove and the bottom second butt joint groove; when the bottom second butt joint groove is butted with the inside of the flushing pipe 31, the corrugated pipe 27 is stretched to the most stretched state, and at the same time, the suction pipe 3 and the suction connecting cavity 211 are in a communication state; when the bottom first butt joint groove is butted with the inside of the flushing pipe 31, the corrugated pipe 27 is squeezed to the most contracted state, and at the same time, the suction pipe 3 and the suction connecting cavity 211 are in a closed state, and through the cooperation of the valve 311, the external flushing or suction equipment can be in an open state all the time during the operation, and through the device, the functions of opening and closing or adjusting the flow rate between the pipes can be realized at any time, so that the medical staff can concentrate more on the operation during the operation, and do not need to repeatedly move to operate the external equipment.

[0059] According to the embodiment of the present application, as shown inFigure 3 As shown in the drawings, the side surface of the channel adjusting column 22 and the inner side of the connecting pipe 21 and the side surface of the semicircular gear 4 are provided with several sealing rings.

[0060] It should be noted that the sealing state of the connecting part can be maintained in the moving or rotating state by the setting of the several sealing rings.

[0061] According to the embodiment of the present application, as shown in the drawings, Figure 2 、 Figure 4 、 Figure 6 and Figure 7 the side surface of the extension pipe 2 is provided with a clamping rotating mechanism, which comprises a movable pipe 5 sleeved on the outer side of the extension pipe 2, a rotating connecting assembly fixed on the side surface of the movable pipe 5, and a movable plate 51 hinged in the inner side of the handheld shell 1; one end of the movable pipe 5 located on the outer side of the handheld shell 1 is provided with an operating clamp 52, one end of the movable plate 51 located on the outer side of the handheld shell 1 is provided with a handle 53, and the side surface of the movable plate 51 located in the inner side of the handheld shell 1 is provided with a connecting plate 54.

[0062] The rotating connecting assembly comprises a rotating knob 6 fixed on the side surface of the movable pipe 5, a connecting column 61 fixed on one end of the rotating knob 6, and a clamping column 62 fixed on one end of the connecting column 61; the rotating knob 6 is located on the outer side of the handheld shell 1, the connecting column 61 is clamped in the inner side of the handheld shell 1, the cross section shape of the two ends of the clamping column 62 is concave, and is located between the connecting plates 54; the connecting plates 54 are clamped in the inner side of the clamping column 62 through bolts and nuts or screws.

[0063] It should be noted that the cross-sectional shape of the movable plate 51 is U-shaped, the inner side of the movable plate 51 is arranged on the outer side of the connecting pipe 21, and the top of the movable plate 51 is connected with the connecting pipe 21 in the inside of the handheld shell 1, the operating clamp 52 is hinged at the connecting position of the movable pipe 5, and the initial state of the operating clamp 52 is in an open state relative to the extension pipe 2 through the cooperation of the spring, the operating clamp 52 is moved to the direction of the connecting pipe 21 by holding the handle 53, the operating clamp 52 is fixed on the side of the movable pipe 5 through the rotation of the rotating ring 6 at one end of the connecting column 61, the operating clamp 52 can be attached to the side of the extension pipe 2, and the clamping effect is realized by departing from the initial state, and the functions of the clamp are integrated with the structure of the suction and irrigation device, the switching of the tools in the body cavity is reduced in the surgical process, the risk of secondary injury caused by switching is reduced, the time of the surgery is saved to a certain extent, the working intensity of the medical staff is reduced, and the position of the operating clamp 52 on the side of the extension pipe 2 can be changed through the synchronous rotation of the movable pipe 5 by rotating the rotating ring 6, so that the medical staff does not need to adjust the angle of the whole device and does not need to change the posture and operation mode back and forth, and the position of the operating clamp 52 can be adjusted, and the practicability and convenience of the device are further improved.

[0064] According to the embodiment of the present application, as shown in Figure 6 The shape of the operating clamp 52 towards the side of the extension pipe 2 is sawtooth-shaped.

[0065] It should be noted that the shape of the operating clamp 52 towards the side of the extension pipe 2 is sawtooth-shaped, which can increase the friction during clamping and improve the stability during clamping.

[0066] The present application is used in surgery, the suction device and the flushing device are connected with the suction pipeline 3 and the flushing pipeline 31 outside the hand-held shell 1, the valve 311 inside the flushing pipeline 31 is closed, and the external suction device and the flushing device are opened, the medical staff manually squeezes the channel adjusting column 22, the flushing pipeline 31 is kept connected through the flushing adjusting groove 221 inside the channel adjusting column 22, one end of the channel adjusting column 22 is closed to the suction pipeline 3, the medical staff stretches the extension pipeline 2 into the patient's body cavity, when the suction work is needed, the squeezing of the channel adjusting column 22 is released, the suction pipeline 3 is opened, and then the suction work is completed, when the flushing is needed, the flushing communication hole 44 and the flushing channel 24 are in the docking state, the valve 311 is opened, and the flushing work can be carried out, the size of the valve 311 and the flushing pipeline 31 inside the docking can realize the adjustment of the flushing flow rate, so that the external flushing or suction device can be always opened during the operation, through the device, the opening and closing or the adjustment of the flow rate between the pipelines can be realized at any time, so that the medical staff can concentrate on the operation during the operation, and the external device does not need to be repeatedly moved to operate, the bottom fan-shaped gear 41 can be engaged with the semicircular gear 4 by manually rotating the lever 42, then the semicircular gear 4 rotates, and then the reverse flushing groove 45 and the flushing channel 24 are switched to the docking state, the flow direction between the flushing channels 24 is adjusted to flow into the suction channel 23 through the reverse flushing groove 45, during the suction of the waste liquid in the suction pipeline 3, the flushing liquid in the flushing channel 24 can accelerate the flow rate in the suction pipeline 3 after being connected to the suction channel 23 through high pressure, so as to prevent the blockage caused by the small flow rate and the suction of the cell tissue, when the suction pipeline 3 does not perform the suction of the waste liquid, the flushing liquid in the flushing channel 24 can clean the residual blood and cell tissue in the suction pipeline 3 after being connected to the suction channel 23 through high pressure, so as to further avoid the blockage caused by the accumulation of the cell tissue in the pipeline, thereby preventing the increase of the operation time caused by the problems of the device during the operation, the operating clamp 52 can be attached to the side of the extension pipeline 2 by rotating the rotating ring 6 fixed on the side of the movable pipe 5 through the connecting column 61 at one end, so as to realize the clamping effect by separating from the initial state, so as to achieve the function of clamping, grabbing and fixing the tissue, the function of the clamp is integrated with the structure of the suction and flushing device, the tool in the body cavity is switched back and forth during the operation, thereby reducing the risk of secondary injury caused by switching, saving the operation time to a certain extent, reducing the working intensity of the medical staff, and the position of the operating clamp 52 on the side of the extension pipeline 2 can be changed by rotating the rotating ring 6, so that when the angle of the clamping operation in the body cavity needs to be changed,The medical staff can adjust the position of the operating clamp 52 without adjusting the whole device, changing the posture and operation mode, and further improve the practicability and convenience of the device.

[0067] The above is based on the ideal embodiment of the present application, through the above description, the relevant personnel can make various changes and modifications without deviating from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A suction / irrigator for use in minimally invasive surgery, comprising: Handheld shell, and pipeline assembly, suction pipeline and flushing pipeline arranged inside the handheld shell, characterized in that, The pipeline assembly comprises: an extension pipeline, a connecting pipeline arranged at one end of the extension pipeline, and a channel adjusting column clamped inside one end of the connecting pipeline through cooperation of a spring; One end of the extension pipeline is arranged outside the handheld shell, the other end is arranged inside the handheld shell and connected with one end of the connecting pipeline, the inside of the extension pipeline is provided with a suction channel and a plurality of flushing channels, the inside of the connecting pipeline is provided with a suction connecting cavity, the suction channel, the suction connecting cavity and the suction pipeline are sequentially communicated; A plurality of flushing connecting pipelines, a converging pipeline and a corrugated pipeline are sequentially arranged inside the suction connecting cavity; a flushing adjusting slot is arranged at one end of the suction channel close to the channel adjusting column, one end of each of the plurality of flushing connecting pipelines is communicated with one end of each of the plurality of flushing channels, and one end of the corrugated pipeline is communicated with one end of the flushing adjusting slot; the bottom of the flushing adjusting slot is communicated with the inside of the flushing pipeline; A backflushing adjusting assembly for switching between flushing and backflushing is arranged on the top inside of the connecting pipeline; the plurality of flushing channels are uniformly distributed around the suction channel; the backflushing adjusting assembly comprises a semicircular sheet gear rotatably connected to the middle of the inside of the connecting pipeline; The semicircular sheet gear is coaxially arranged with the extension pipeline and is provided with a suction communication hole, a plurality of flushing communication holes and a plurality of backflushing grooves inside; the plurality of flushing communication holes and the plurality of backflushing grooves are uniformly distributed around the suction communication hole in a circumferential array, the flushing communication holes and the backflushing grooves are arranged at intervals, and the number of the flushing communication holes and the backflushing grooves is consistent with the number of the flushing channels, the suction communication hole is communicated with the suction channel, and one end of the backflushing groove is communicated with the suction communication hole; A clamping rotating mechanism is arranged on the side surface of the extension pipeline, the clamping rotating mechanism comprises a movable pipe sleeved on the outside of the extension pipeline, a rotating connecting assembly fixed on the side surface of the movable pipe, and a movable plate hinged inside the handheld shell; one end of the movable pipe located outside the handheld shell is provided with an operation clamp, one end of the movable plate located outside the handheld shell is provided with a handle, and the side surface of the movable plate located inside the handheld shell is provided with a connecting plate; The rotating connecting assembly comprises a rotating dial ring fixed on the side surface of the movable pipe, a connecting column fixed on one end of the rotating dial ring, and a clamping column fixed on one end of the connecting column; the rotating dial ring is located outside the handheld shell, the connecting column is clamped inside the handheld shell, the cross-sectional shape of both ends of the clamping column is concave, and the connecting plate is located between the both ends of the clamping column, and the connecting plate is clamped on the inside of the clamping column through bolts and nuts or screws.

2. A suction / irrigator for use in minimally invasive surgery according to claim 1, characterized in that: The backflush adjusting assembly further comprises a sector gear arranged at the top end of the half-round gear, and a lever fixed at the top end of the sector gear; the half-round gear is engaged with the sector gear, and the lever is rotatably connected to the inner side of the connecting pipe at both sides of the bottom of the lever.

3. A suction / irrigator for use in minimally invasive surgery according to claim 2, wherein: One end of the lever is located outside the handheld shell, and the angle between the side of the lever and the inner side of the handheld shell between the leftmost end and the rightmost end is 90°.

4. The suction / irrigator as claimed in claim 1, wherein: The shape of the backflush adjusting groove is F-shaped, and the diameter of both ends of the bottom of the backflush adjusting groove is the same as the diameter of the inner side of the backflush pipe.

5. The suction / irrigator as claimed in claim 1, wherein: The inner side of the backflush pipe is provided with a valve for opening and closing the backflush pipe or adjusting the flow rate of the backflush pipe.

6. The suction / irrigator as claimed in claim 1, wherein: The shape of the side of the operating clamp towards one side of the extension pipe is sawtooth-shaped.

7. The suction / irrigator as claimed in claim 1, wherein: The side of the channel adjusting column and the inner side of the connecting pipe, and the inner side of the connecting pipe and the side of the half-round gear are both provided with a plurality of sealing rings.

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