CN112263743A - Coaxial flushing and sucking irrigator - Google Patents

Abstract

The invention discloses a coaxial flushing and sucking irrigator which comprises a suction pipeline for sucking liquid and a flushing pipeline for flushing the liquid, wherein the near end of the suction pipeline is connected with a negative pressure suction device, the near end of the flushing pipeline is connected with a transfusion device, and the far end of the suction pipeline and the far end of the flushing pipeline are coaxial to form a circulating vortex structure in which the liquid flushed from the far end of the flushing pipeline flows into the suction pipeline when the suction pipeline and the flushing pipeline work simultaneously. The invention can reduce the outflow of lavage fluid and reduce the infection risk.

Description

Coaxial flushing and sucking irrigator

Technical Field

The invention relates to the field of medical instruments, in particular to a coaxial flushing and sucking irrigator.

Background

The irrigation and suction device is used for cleaning or nursing and cleaning wounds, human body natural cavity channels and the like of wound blood, tissues and the like in an operation, the traditional irrigation and suction device belongs to side-by-side type irrigation and suction, one pipeline flushes liquid, one pipeline sucks liquid, only flushing and suction can be carried out independently, the flushing and suction can not be carried out simultaneously, or a single pipe is separated to flush and suck the function, the quick suction after the lavage liquid is flushed out can not be controlled to reach balance, more regional lavage liquid needing flushing is easy to be caused, the possibility of infiltrating a sterile surgical drape and a surgical gown exists, the pollution range is widened, the infection risk is increased, or the natural cavity channels flow into the human body.

How to solve the above problems is a technical problem to be solved urgently.

Disclosure of Invention

The invention aims to provide a coaxial flushing and suction irrigator which can reduce outflow of irrigation liquid and reduce infection risk.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a coaxial flushing and sucking irrigator which comprises a suction pipeline for sucking liquid and a flushing pipeline for flushing the liquid, wherein the near end of the suction pipeline is connected with a negative pressure suction device, the near end of the flushing pipeline is connected with a transfusion device, and the far end of the suction pipeline and the far end of the flushing pipeline are coaxial to form a circulating vortex structure in which the liquid flushed from the far end of the flushing pipeline flows into the suction pipeline when the suction pipeline and the flushing pipeline work simultaneously.

Furthermore, the suction pipeline comprises a suction pipe, a flushing and sucking joint is arranged at the junction of the near end of the suction pipeline and the near end of the flushing pipeline, the far end of the flushing and sucking joint is connected with the near end of the suction pipe, the near end of the flushing and sucking joint is a branched structure, the tail ends of the flushing and sucking joint are respectively provided with a flushing liquid inlet and a suction inlet, the suction pipe, the flushing and sucking joint and the suction inlet are sequentially communicated to form a suction pipeline, the suction inlet is connected with a negative pressure suction device, a suction pressure control valve is arranged at one end of the flushing and suction joint close to the suction inlet, a flushing pipe is sleeved in the suction pipe, the far end of the flushing pipe is coaxial with the far end of the suction pipe, the near end of the flushing pipe extends to the flushing inlet and is connected with a catheter joint with two through ends, the end, close to the liquid flushing pipe, of the guide pipe joint is connected with the liquid flushing inlet, the liquid flushing pipe is communicated with the guide pipe joint to form a liquid flushing pipeline, and one end, far away from the liquid flushing pipe, of the guide pipe joint (8) is connected with the infusion equipment.

Furthermore, the suction pipeline comprises a suction pipe and a suction joint, the suction joint is a tubular structure with an upper cavity and a lower cavity which are internally partitioned into an upper cavity and a lower cavity which are not communicated with each other, the far end of the suction joint is connected with the near end of the suction pipe, a sealing cap is arranged at the near end of the suction joint, a suction inlet is arranged on the pipe wall of the suction joint, the suction pipe, the upper cavity and the suction inlet are sequentially communicated to form the suction pipeline, the suction inlet is connected with negative pressure suction equipment, a liquid flushing inlet is further arranged on the pipe wall of the suction joint, a liquid flushing pipe is sleeved in the suction pipe, the far end of the liquid flushing pipe is coaxial with the far end of the suction pipe, the near end of the liquid flushing pipe extends into the lower cavity, the liquid flushing pipe, the lower cavity and the liquid flushing inlet are sequentially communicated to form a liquid flushing pipeline, and the liquid flushing.

Furthermore, a plurality of small holes are arranged on the far-end pipe wall of the suction pipe, and the small holes are linearly arranged along the central shaft of the suction pipe or are distributed in a circumferential manner.

Furthermore, a bending control device is arranged on the suction tube, the bending control device is a traction wire with one end connected with the outer wall of the suction tube, and the other end of the traction wire is connected with the flushing and suction joint or is a free end.

Furthermore, towards the liquid pipeline including wash liquid pipe attract the pipeline near-end and wash liquid pipeline near-end and join the department and be equipped with towards the suction joint, towards the suction joint distal end and be connected with towards the liquid pipe near-end, should dash the suction joint near-end and be branching structure and its end respectively towards liquid entry, attract the entry, wash liquid pipe, dash suction joint, towards the liquid entry and communicate in proper order and form towards the liquid pipeline and towards the liquid entry and be connected with infusion equipment, and towards the liquid pipe endotheca and be equipped with and attract the pipe, wash liquid pipe distal end and attract pipe distal end coaxial and should attract the pipe near-end to extend to inhale the introduction mouth and be connected with the pipe joint that both ends link up, pipe joint is close to and attracts pipe one end and attract the entry to be connected, attract pipe and pipe joint intercommunication form and attract pipeline and pipe joint and attract pipe one end and be connected with negative pressure suction equipment.

Further, dash the liquid pipeline including dash liquid pipe, dash and inhale the joint, dash and inhale the tubular structure that connects for the interior partition becomes two upper and lower cavities that are not communicating each other, should dash and inhale joint distal end and dash the liquid pipe near-end and be connected and should dash and inhale the joint near-end and be equipped with sealing cap, be equipped with on the pipe wall that should dash and inhale the joint and dash the liquid entry, dash liquid pipe, last cavity, dash the liquid entry and communicate in proper order and form towards the liquid pipeline and dash the liquid entry and be connected with infusion equipment, and still be equipped with on the pipe wall that dashes the suction joint and attract the entry dash the liquid pipe endotheca and be equipped with the suction tube, it is coaxial and should attract the pipe near-end to extend to the cavity of resorption with dashing the liquid pipe distal end, attract pipe, lower cavity, attract the entry and communicate in proper order and form the suction pipeline, it is.

Furthermore, a plurality of small holes are arranged on the far-end pipe wall of the flushing pipe, and the small holes are linearly arranged or circumferentially distributed along the central axis of the flushing pipe.

Furthermore, a bend control device is arranged on the liquid flushing pipe, the bend control device is a traction line with one end connected with the outer wall of the suction pipe, and the other end of the traction line is connected with the flushing and suction joint or is a free end.

Due to the adoption of the structure, the invention has the following beneficial effects:

according to the invention, the far end of the suction pipeline and the far end of the flushing pipeline are coaxial, and the suction and flushing are simultaneously carried out to form a circulating vortex structure, in the working process, the lavage liquid in the infusion device is flushed out of the cleaning wound along the flushing pipeline, the liquid after cleaning the wound flows back along the suction pipeline under the suction of the negative pressure suction device, and because the influence of the punching pressure and the suction force is simultaneously applied, the circulating vortex phenomenon that the liquid flows from the far end of the suction pipeline to the far end of the flushing pipeline can occur at the far end of the suction pipeline and the far end of the flushing pipeline, so that the outflow of the lavage liquid can be prevented from polluting bed sheets, surgical instruments and other devices, the infection risk is reduced, the cleaning effect is better than that of the traditional side-by-side flushing technology, and.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a fourth embodiment of the present invention;

FIG. 5 is a schematic diagram of four control modes of the suction pressure control valve of the present invention;

FIG. 6 is a schematic view of a different arrangement of the orifices of the present invention;

FIG. 7 is a schematic view of the circulating vortex flow of the present invention with the flushing pipe sleeved in the suction pipe;

FIG. 8 is a schematic diagram of the circulation vortex flow when the suction tube is sleeved in the flushing tube according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1, 5 to 7, a coaxial irrigation and suction irrigator includes a suction pipeline for sucking liquid and a flushing pipeline for flushing liquid, wherein a proximal end of the suction pipeline is connected to a negative pressure suction device, a proximal end of the flushing pipeline is connected to a transfusion device, and a distal end of the suction pipeline and a distal end of the flushing pipeline are coaxial to form a circulating vortex structure in which liquid flushed from the distal end of the flushing pipeline flows into the suction pipeline when both work simultaneously.

Specifically, the circulating vortex structure is a structure in which when the suction pipeline and the flushing pipeline work simultaneously, liquid flows back into the suction pipeline under the influence of the suction force of the distal end of the suction pipeline while rushing out from the distal end of the flushing pipeline, so that a circulating vortex phenomenon occurs in the liquid at the distal end of the suction pipeline and the distal end of the flushing pipeline.

In the embodiment, the suction pipeline comprises a suction pipe 1, a flushing and suction joint 6 is arranged at the junction of the near end of the suction pipeline and the near end of the flushing liquid pipeline, the far end of the flushing and suction joint 6 is connected with the near end of the suction pipe 1, and the flushing and suction joint 6 is connected with the suction pipe 1 in a threaded connection or transition fit or other detachable connection mode, so that the suction pipes 1 of different models can be replaced according to different requirements; the near end of the flushing and sucking joint 6 is a branched structure, the tail ends of the flushing and sucking joint 6 are respectively provided with a flushing liquid inlet 4 and a suction inlet 5, the suction tube 1, the flushing and sucking joint 6 and the suction inlet 5 are sequentially communicated to form a suction pipeline, the suction inlet 5 is connected with a negative pressure suction device, one end of the flushing and sucking joint 6 close to the suction inlet 5 is provided with a suction pressure control valve 7, the suction pressure control valve 7 can be a long-strip-shaped opening, the long-strip-shaped opening is shielded by fingers to expose openings with different sizes, different suction pressures are formed in the suction pipeline, the suction pipeline can also be provided with a push-pull switch, the push-pull switch is exposed from the openings with different sizes in a push-pull mode to form different suction pressures in the suction pipeline, the push-pull switch can also be a three-way control valve, the diameter of the cavity is changed by pressing, different suction pressures are formed in the suction pipeline, and the purpose of controlling the suction pressure and other structures for adjusting the pressure are achieved; the flushing pipe 2 is sleeved in the suction pipe 1, the far end of the flushing pipe 2 is coaxial with the far end of the suction pipe 1, the near end of the flushing pipe 2 extends to a flushing inlet 4 and is connected with a catheter joint 8 with two through ends, and the catheter joint 8 is connected with the flushing pipe 2 in a threaded connection or transition fit or other detachable connection mode, so that the flushing pipes 2 of different models can be replaced according to different requirements; the pipe joint 8 is close to the liquid flushing pipe 2 one end and is connected with the liquid flushing entry 4, the connection mode that the pipe joint 8 is close to liquid flushing pipe 2 one end and liquid flushing entry 4 is threaded connection or transition fit or other detachable connection modes, liquid flushing pipe 2 and pipe joint 8 intercommunication form the liquid flushing pipeline and pipe joint 8 keep away from liquid flushing pipe 2 one end and be connected with infusion equipment. When the wound is cleaned, the lavage fluid washes out the cleaning wound from the distal end of the flushing tube 2, the fluid after the wound is cleaned is sucked back to the suction pipeline from the distal end of the suction tube 1, so that the fluid forms a circulating vortex after washing out the flushing tube 2, in addition, the relative height between the suction tube 1 and the flushing tube 2 is adjusted, the distal end of the suction tube 1 is higher than or parallel and level with or lower than the distal end of the flushing tube 2, and the fluid can form different vortex backflow.

In this embodiment, a plurality of small holes 3 are arranged on the far-end tube wall of the suction tube 1, the small holes 3 are linearly arranged or circumferentially distributed along the central axis of the suction tube 1, and the number and arrangement mode of the small holes 3 are changed to cause vortexes of different shapes.

In this embodiment, the suction tube 1 is provided with the bending control device 9, the bending control device 9 is a pull wire having one end connected to the outer wall of the suction tube 1, the other end of the pull wire is connected to the impact suction connector 6 or is a free end, the curvature of the suction tube 1 is adjusted by pulling the pull wire, so that the cleaning of the cavity or the interior of a complicated wound can be conveniently realized, a handle can be arranged on the tube wall of the impact suction connector 6, the proximal end of the pull wire can be fixed on the handle so as to control bending, and in addition, the bending control effect can be achieved passively by using common medical equipment such as a obturator.

In this embodiment, the suction tube 1 may be a hard tube, a semi-hard tube, a soft tube, or a mixture of a soft tube and a hard tube, may be made of a transparent or semi-transparent or opaque material, or may be made of a single-lumen structure or a multi-lumen structure; the irrigation tube 2 can be a hard tube, a semi-hard tube, a soft tube or a mixture of a soft tube and a hard tube, the material of the irrigation tube can be transparent or semitransparent or opaque or a mixture of transparent and opaque, the structure of the irrigation tube can be a single-cavity structure or a multi-cavity structure, in addition, a developing tube can be used as the suction tube 1 or the irrigation tube 2, so that the position of the suction tube 1 or the irrigation tube 2 inside a wound can be observed, and the depth of the suction tube 1 extending into the wound can be conveniently observed by arranging scales on the outer wall of the suction tube 1.

When the device is used, the far end of the suction tube 1 and the far end of the flushing tube 2 are placed near a wound to be flushed and sucked, the suction inlet 5 is connected with a negative pressure suction device, the far end of the flushing tube 2 extends into the suction tube 1, the far end of the flushing tube 2 is coaxial with the far end of the suction tube, the catheter joint 8 is connected with a transfusion device, the negative pressure suction device and the transfusion device work simultaneously, lavage liquid in the transfusion device is flushed out of the far end of the flushing tube 2 to clean the wound, and simultaneously, the flushed liquid flows into the suction pipeline from the far end of the suction tube 1 under the suction force of the negative pressure suction device, so that the dynamic balance of flushing liquid and sucking liquid is achieved, the liquid flows circularly and forms a vortex, the outflow of the lavage liquid can be avoided to pollute bed sheets, surgical instruments and the like, the infection risk is reduced, and the cleaning; in the cleaning process, adjust suction pressure through suction pressure control valve 7, control is washed and is inhaled pressure balance to reduce the lavage liquid outflow, can adjust through accuse curved device 9 and attract 1 crookedness of pipe when necessary, be convenient for realize the inside clearance of chamber way or complicated wound, make the cleaning performance better.

Example two

The difference between this embodiment and the first embodiment is:

referring to fig. 2, the suction pipeline includes a suction tube 1 and a suction joint 6, the suction joint 6 is a tubular structure with an inner portion divided into an upper chamber and a lower chamber which are not communicated with each other, the distal end of the suction joint 6 is connected with the proximal end of the suction tube 1, the suction joint 6 is connected with the suction tube 1 by a threaded connection or a transition fit or other detachable connection methods, so that the suction tubes 1 of different models can be replaced according to different requirements; the near end of the flushing and sucking joint 6 is provided with a sealing cap 10 for preventing water flow from overflowing; a suction inlet 5 is arranged on the pipe wall of the flushing-suction joint 6, the suction pipe 1, the upper chamber and the suction inlet 5 are sequentially communicated to form a suction pipeline, the suction inlet 5 is connected with a negative pressure suction device, and in addition, a suction pressure control valve 7 can be arranged at the position, corresponding to the upper chamber, on the flushing-suction joint 6 and used for adjusting suction pressure; and a flushing inlet 4 is further arranged on the pipe wall of the flushing-sucking joint 6, a flushing pipe 2 is sleeved in the suction pipe 1, the far end of the flushing pipe 2 is coaxial with the far end of the suction pipe 1, the near end of the flushing pipe 2 extends into the lower cavity, the flushing pipe 2, the lower cavity and the flushing inlet 4 are sequentially communicated to form a flushing pipeline, and the flushing inlet 4 is connected with infusion equipment.

EXAMPLE III

The difference between this embodiment and the first embodiment is:

referring to fig. 3 and 8, the flushing pipe includes a flushing pipe 2, a flushing and sucking joint 6 is disposed at a junction of the proximal end of the suction pipe and the proximal end of the flushing pipe, the distal end of the flushing and sucking joint 6 is connected to the proximal end of the flushing pipe 2, and the flushing and sucking joint 6 and the flushing pipe 2 are connected by a threaded connection, a transition fit or other detachable connection manner, so that different types of flushing pipes 2 can be replaced according to different needs; the proximal end of the flushing and sucking joint 6 is of a bifurcated structure, the tail ends of the flushing and sucking joint 6 are respectively provided with a flushing inlet 4 and a sucking inlet 5, the flushing pipe 2, the flushing and sucking joint 6 and the flushing inlet 4 are sequentially communicated to form a flushing pipeline, the flushing inlet 4 is connected with infusion equipment, the flushing pipe 2 is internally sleeved with a sucking pipe 1, the distal end of the flushing pipe 2 is coaxial with the distal end of the sucking pipe 1, the proximal end of the sucking pipe 1 extends to the sucking inlet 5 and is connected with a catheter joint 8 with two through ends, the catheter joint 8 is connected with the sucking pipe 1 in a threaded connection or transition fit or other detachable connection mode, and therefore the sucking pipes 1 of different models can be replaced according to different requirements; the catheter connector 8 is close to the one end of the suction tube 1 and is connected with the suction inlet 5, the connection mode of the catheter connector 8 close to the one end of the suction tube 1 and the suction inlet 5 is threaded connection or transition fit or other detachable connection modes, the suction tube 1 is communicated with the catheter connector 8 to form a suction pipeline, and the end, far away from the suction tube 1, of the catheter connector 8 is connected with a negative pressure suction device.

In this embodiment, the pipe wall at the far end of the liquid flushing pipe 2 is provided with a plurality of small holes 3, and the small holes 3 are linearly arranged or circumferentially distributed along the central axis of the liquid flushing pipe 2.

In this embodiment, the liquid flushing pipe 2 is provided with a bending control device 9, the bending control device 9 is a traction line with one end connected with the outer wall of the liquid flushing pipe 2, and the other end of the traction line is connected with the flushing-sucking joint 6 or is a free end.

In this embodiment, the outer wall of the flushing pipe 2 is provided with scales so as to facilitate observation of the depth of the flushing pipe 2 extending into the wound.

In the embodiment, when the device is used, the far end of the suction tube 1 and the far end of the flushing tube 2 are placed near a wound to be flushed and sucked, the catheter joint 8 is connected with a negative pressure suction device, the far end of the suction tube 1 extends into the suction flushing tube 2, the far end of the flushing tube 2 is coaxial with the far end of the suction tube 1, the flushing inlet 4 is connected with a transfusion device, the negative pressure suction device and the transfusion device work simultaneously, the flushing liquid in the transfusion device is flushed out of the far end of the flushing tube 2 to clean the wound, and meanwhile, under the suction force of the negative pressure suction device, the flushed liquid flows into a suction pipeline from the far end of the suction tube 1, so that the dynamic balance of flushing liquid and sucking liquid is achieved, the liquid flows circularly and forms a vortex.

Example four

The difference between this embodiment and the third embodiment is that:

referring to fig. 4, the flushing pipe includes a flushing pipe 2 and a flushing and sucking joint 6, the flushing and sucking joint 6 is a tubular structure with an inner portion separated into an upper chamber and a lower chamber which are not communicated with each other, the distal end of the flushing and sucking joint 6 is connected with the proximal end of the flushing pipe 2, and the flushing and sucking joint 6 and the flushing pipe 2 are connected by adopting a threaded connection, a transition fit or other detachable connection manner, so that the flushing pipes 2 of different models can be replaced according to different requirements; the near end of the flushing and sucking joint 6 is provided with a sealing cap 10, the sealing cap 10 is connected with the flushing and sucking joint 6 in a threaded connection or transition fit or other detachable connection mode, when the suction pressure needs to be adjusted, the pressure can be adjusted by taking off the sealing cap 10 and shielding the near end port of the flushing and sucking joint 6 with fingers, and the suction pressure can also be adjusted by arranging a suction pressure control valve 7 at the position of the flushing and sucking joint 6 corresponding to the lower chamber; be equipped with towards liquid entry 4 on this pipe wall towards suction joint 6, towards liquid pipe 2, go up the cavity, towards liquid entry 4 and communicate in proper order and form towards liquid pipeline and towards liquid entry 4 and be connected with infusion equipment, and still be equipped with on the pipe wall towards suction joint 6 and attract entry 5 towards 2 endotheca of liquid pipe is equipped with and attracts pipe 1, it is coaxial and should attract 1 near-end of pipe to extend to the cavity of resorption with towards 2 distal ends of liquid pipe to attract 1 distal end, attract pipe 1, cavity, attract entry 5 to communicate in proper order and form and attract the pipeline, it is connected with negative pressure attraction equipment to attract entry 5.

The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (9)

1. A coaxial flushing and sucking irrigator comprises a suction pipeline for sucking liquid and a flushing pipeline for flushing the liquid; the method is characterized in that: the suction pipeline is characterized in that the near end of the suction pipeline is connected with a negative pressure suction device, the near end of the flushing pipeline is connected with a transfusion device, and the far end of the suction pipeline and the far end of the flushing pipeline are coaxial to form a circulating vortex structure in which liquid flushed from the far end of the flushing pipeline flows into the suction pipeline when the suction pipeline and the flushing pipeline work simultaneously.

2. The coaxial irrigation and suction irrigator of claim 1, wherein: the suction pipeline comprises a suction pipe (1), a flushing and suction joint (6) is arranged at the junction of the near end of the suction pipeline and the near end of a flushing liquid pipeline, the far end of the flushing and suction joint (6) is connected with the near end of the suction pipe (1), the near end of the flushing and suction joint (6) is of a branched structure, the tail ends of the flushing and suction joint (6) are respectively provided with a flushing liquid inlet (4) and a suction inlet (5), the suction pipe (1), the flushing and suction joint (6) and the suction inlet (5) are sequentially communicated to form a suction pipeline, the suction inlet (5) is connected with negative pressure suction equipment, one end of the flushing and suction joint (6) close to the suction inlet (5) is provided with a suction pressure control valve (7), a flushing liquid pipe (2) is sleeved in the suction pipe (1), the far end of the flushing liquid pipe (2) is coaxial with the far end of the suction pipe (1), and the near end of the flushing liquid pipe (2) extends to the flushing liquid inlet, the infusion apparatus is characterized in that one end, close to the liquid flushing pipe (2), of the pipe joint (8) is connected with the liquid flushing inlet (4), the liquid flushing pipe (2) is communicated with the pipe joint (8) to form a liquid flushing pipeline, and one end, far away from the liquid flushing pipe (2), of the pipe joint (8) is connected with the infusion apparatus.

3. The coaxial irrigation and suction irrigator of claim 1, wherein: the suction pipe is including attracting pipe (1), dashing suction joint (6), dash suction joint (6) and be the tubular structure of two upper and lower cavities that the internal partitioning becomes each other not communicating, should dash suction joint (6) distal end and attract pipe (1) near-end to be connected and should dash suction joint (6) near-end to be equipped with sealing cap (10), be equipped with on the pipe wall that should dash suction joint (6) and attract entry (5), attract pipe (1), upper chamber, attraction entry (5) to communicate in proper order and form suction pipe and attract entry (5) and be connected with negative pressure suction equipment, and still be equipped with on the pipe wall that dashes suction joint (6) and dash liquid entry (4) attract pipe (1) endotheca to be equipped with towards liquid pipe (2), it is coaxial and should dash liquid pipe (2) near-end to extend to the cavity with suction pipe (1) distal end to dash liquid pipe (2) distal end, towards liquid pipe (2), The lower chamber and the flushing inlet (4) are sequentially communicated to form a flushing pipeline, and the flushing inlet (4) is connected with infusion equipment.

4. A coaxial irrigation and suction irrigator according to claim 2 or 3, wherein: the pipe wall of the far end of the suction pipe (1) is provided with a plurality of small holes (3), and the small holes (3) are linearly arranged along the central shaft of the suction pipe (1) or are distributed in a circumferential manner.

5. A coaxial irrigation and suction irrigator according to claim 2 or 3, wherein: the suction tube (1) is provided with a bending control device (9), the bending control device (9) is a traction line with one end connected with the outer wall of the suction tube (1), and the other end of the traction line is connected with the impact suction joint (6) or is a free end.

6. The coaxial irrigation and suction irrigator of claim 1, wherein: the flushing pipeline comprises a flushing pipe (2), a flushing and sucking joint (6) is arranged at the junction of the near end of the suction pipeline and the near end of the flushing pipeline, the far end of the flushing and sucking joint (6) is connected with the near end of the flushing pipe (2), the near end of the flushing and sucking joint (6) is of a branched structure, the tail end of the flushing and sucking joint (6) is respectively provided with a flushing inlet (4) and a suction inlet (5), the flushing pipe (2), the flushing and sucking joint (6) and the flushing inlet (4) are sequentially communicated to form a flushing pipeline, the flushing inlet (4) is connected with infusion equipment, the flushing pipe (2) is internally sleeved with a suction pipe (1), the far end of the flushing pipe (2) is coaxial with the far end of the suction pipe (1), the near end of the suction pipe (1) extends to the suction inlet (5) and is connected with a conduit joint (8) with two through ends, one end of the conduit joint (8) close to the suction pipe (1) is, the suction tube (1) is communicated with the catheter connector (8) to form a suction pipeline, and one end, far away from the suction tube (1), of the catheter connector (8) is connected with a negative pressure suction device.

7. The coaxial irrigation and suction irrigator of claim 1, wherein: towards the liquid pipeline including towards liquid pipe (2), towards suction joint (6) for the internal partitioning become the tubular structure of two upper and lower cavities that each other does not communicate with each other, should dash suction joint (6) distal end and be connected with towards liquid pipe (2) near-end and should dash suction joint (6) near-end and be equipped with sealing cap (10), be equipped with towards liquid entry (4) on the pipe wall that should dash suction joint (6), towards liquid pipe (2), upper chamber, towards liquid entry (4) and communicate in proper order and form towards the liquid pipeline and towards liquid entry (4) and be connected with infusion equipment, and still be equipped with on the pipe wall that dashes suction joint (6) and attract entry (5) towards liquid pipe (2) endotheca and be equipped with and attract pipe (1), attract pipe (1) distal end and the coaxial and should attract pipe (1) near-end to extend to indoor with towards liquid pipe (2) distal end, attract pipe (1) lower cavity, The lower chamber and the suction inlet (5) are sequentially communicated to form a suction pipeline, and the suction inlet (5) is connected with a negative pressure suction device.

8. A coaxial irrigation and suction irrigator according to claim 6 or 7, wherein: the pipe wall of the far end of the liquid flushing pipe (2) is provided with a plurality of small holes (3), and the small holes (3) are linearly arranged or circumferentially distributed along the central shaft of the liquid flushing pipe (2).

9. A coaxial irrigation and suction irrigator according to claim 6 or 7, wherein: the device is characterized in that a bending control device (9) is arranged on the liquid flushing pipe (2), the bending control device (9) is a traction line with one end connected with the outer wall of the suction pipe (1), and the other end of the traction line is connected with the flushing and suction joint (6) or is a free end.

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