CN216365305U - Drainage device for unilateral double-channel endoscopic surgery - Google Patents

Abstract

The invention provides a single-side double-channel drainage device for endoscopic surgery, which comprises: the device comprises an isolation film, release paper, a water absorption sponge and a water absorption pipe. Wherein: the release paper is adhered to the isolation film, and the isolation film can be adhered to the surface of human skin after being torn off when in use; an annular structure formed by the water-absorbing sponge is fixed above the isolating membrane, and the middle part of the annular structure is an operation area for operation; the suction tube is arranged in the suction sponge and used for absorbing moisture generated by operation and discharging the moisture out through the negative pressure suction tube. According to the drainage device, the isolation film is adhered to the back of the patient after the release paper is torn off before the operation, so that the water blocking dam can be directly formed, the operation is convenient and rapid, and compared with the traditional method for temporarily preparing the water blocking dam before the operation, the early preparation of medical staff is reduced; and can adapt to the special appearance of back, the water absorption performance is good, has avoided the operation in-process to the frequent removal of suction tube in order to aspirate the flush fluid, and then has alleviateed work load.

Description

Drainage device for unilateral double-channel endoscopic surgery

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to a drainage device for a unilateral double-channel endoscopic surgery.

Background

The spine is composed of vertebrae connected to each other by intervertebral discs and ligaments, maintaining the body stable. The back of the spine consists of vertebral arches, vertebral plates, transverse processes and spinous processes of all vertebrae, is relatively close to the body surface and is easy to contact, and common spine pathological changes comprise lumbar disc herniation, spinal stenosis, lumbar spondylolisthesis and the like.

The unilateral two-channel endoscopic surgery is a new minimally invasive surgery, can effectively treat various spinal diseases in an accurate and minimally invasive mode, has the advantages of small wound and less bleeding compared with the traditional open surgery, can reduce the surgical risk of a patient, and is favorable for early rehabilitation after the operation of the patient. The operation of going unilateral binary channels scope needs establish two passageways at patient's back, one is the scope passageway, and one is the operation passageway, for obtaining clear operation field of vision, need follow the scope passageway and continuously input normal saline inwards, normal saline discharges from the operation passageway, because have various body fluids and blood to ooze in the human body in the operation, keeps smooth and easy play water and is the key of obtaining clear operation field of vision with various body fluids and blood discharge. Normal saline flows the back from operation passageway, needs timely drainage discharge, otherwise can soak the aseptic cloth on the operating table, if the drainage is not smooth in addition, leads to the regional ponding of operation too much, can influence the definition in operation field of vision to increase the infection risk.

In the prior art, a common collection method is to stick a layer of plastic film on the area and around the incision area of the human body, wherein the parts of the plastic film positioned on the two sides of the human body are provided with liquid collection bags, and the liquid discharged from the incision is collected in the liquid collection bags after flowing through the plastic film. This collection is often used for operations performed on the abdomen of the human body and is not suitable for operations performed on an open back of the human body, in particular: the abdomen of a human body is generally in a shape with a high middle and low sides, water flow can automatically flow out from the middle to the two sides, a back ditch is arranged in the middle of the back of the human body, and the position of the waist is relatively flat, so that the water flow is not smooth to flow out due to the shape structure; in addition, for single-sided double-channel endoscopic surgery, depending on the surgical requirements, a small area of 20cm × 15cm, which is exposed on the back, cannot be used for collecting a large area of a conventional liquid, such as a large-area adhesive film.

Clinically, physicians have used a method of setting a "water retaining dam" around a small area where surgery is allowed to be exposed, as shown in fig. 1-2, and then placing a suction tube communicating with a negative pressure aspirator inside the "water retaining dam" and sucking out water using the suction tube when fluid is discharged from a surgical incision. The defects of the existing method are that: the 'water retaining dam' is manually arranged at the beginning of each operation, generally, about 15 minutes is needed, and the operation time is prolonged; need have medical personnel to pay attention constantly among the operation process, remove the position of suction tube at any time, in time will follow the discharge of operation incision exhaust water, in case rivers do not in time arrange outward, operation area ponding is too much, will influence the clarity in operation field of vision, increases the infection risk, and rivers cross the clearance between film and the skin of tearing at operation incision position in addition, get into the hidden danger of film below.

Disclosure of Invention

Therefore, the technical problem to be solved by the present invention is to overcome the technical defects that no drainage device suitable for draining the drainage fluid discharged from the incision on the back of the human body to keep the operation area free of water exists in the prior art, so that the doctor needs to set the drainage device by himself before the operation, the operation time is prolonged, and the suction tube needs to be moved at any time during the operation, so that the workload is increased.

Therefore, the invention provides a drainage device for unilateral double-channel endoscopic surgery, which comprises:

the isolating membrane has certain length and width, is provided with an adhesive surface and is suitable for being attached to the surface of human skin;

the release paper is detachably connected with the sticking surface of the isolation film in a sticking way;

the water absorption sponge is fixedly connected above the isolating membrane to form an annular structure, and the middle part of the annular structure is an operation area;

the water suction pipe is arranged in the water suction sponge and is provided with a plurality of water suction holes and a drain hole, and the drain hole is suitable for being detachably connected with an external negative pressure suction pipe.

Preferably, the separator further comprises a cover film, the cover film covers the area outside the annular structure and the upper part of the annular structure, and the part outside the annular structure is adhered to the separator.

Preferably, the barrel has a first connection port extending a length inwardly from the inside of the ring structure.

As a preferred scheme, the water-absorbing structure further comprises an inner ring water-absorbing pipe, the inner side surface of the attaching ring structure is arranged and can be connected with the first connecting water-absorbing port, and a plurality of inner ring water-absorbing ports are arranged on the inner ring water-absorbing pipe.

Preferably, the inner ring suction pipe is further provided with a second connection suction port extending towards the middle part.

As a preferred scheme, the water-absorbing device further comprises a Y-shaped water-absorbing pipe, wherein the Y-shaped water-absorbing pipe comprises a main water-absorbing pipe and two branch water-absorbing pipes, one end of the main water-absorbing pipe can be detachably connected with the first connection water-absorbing opening or the second connection water-absorbing opening, and a plurality of water-absorbing openings are uniformly formed in the two branch water-absorbing pipes.

As a preferred scheme, the bottom of the water distribution and absorption pipe is provided with at least two silica gel sheets, and the silica gel sheets are suitable for being adhered and adsorbed on the isolation film.

As a preferred scheme, the water distributor further comprises a plurality of bottom water suction ports, wherein the bottom water suction ports are arranged at the bottom of the water distribution and suction pipe and are positioned between two adjacent silica gel sheets.

Preferably, at least three protrusions are arranged on the outer side of the periphery of the bottom water suction port, and a gap is formed between any two protrusions.

The technical scheme provided by the invention has the following advantages:

1. the invention relates to a drainage device for unilateral double-channel endoscopic surgery, which comprises: the device comprises an isolation film, release paper, a water absorption sponge and a water absorption pipe. Wherein: the release paper is adhered to the isolation film, and the isolation film can be adhered to the surface of human skin after being torn off when in use; an annular structure formed by the water-absorbing sponge is fixed above the isolating membrane, and the middle part of the annular structure is an operation area for operation; the suction tube is arranged in the suction sponge and is used for absorbing flushing fluid generated in the operation and is connected with the negative pressure suction tube through the drain hole so as to discharge the absorbed flushing fluid outwards.

When the drainage device for the unilateral double-channel endoscopic surgery is used, the middle part of the water-absorbing sponge which is arranged on the isolation film and forms the annular structure is approximately aligned with the position to be operated, then the release paper is torn off from the isolation film, the isolation film is attached to the surface of the back skin of a human body, the operation position is positioned in the middle of the annular structure, finally the drainage hole is connected with the negative pressure suction pipe, and the negative pressure suction device is started to suck water through the water suction pipe during the surgery. The drainage device is operated in a sticking mode by tearing off the release paper before an operation, is very quick, can be generally finished within 2 minutes, and greatly saves time compared with the traditional drainage device with the length of about 15 minutes; according to the drainage device, the water absorption sponge is used for enclosing to form an annular structure, the area of a human body exposed in a back operation is small, and the water absorption sponge has a water absorption characteristic, so that flushing fluid and the like discharged from an operation incision can be quickly absorbed by the water absorption sponge; the water absorption sponge can also block flushing liquid and prevent the flushing liquid from flowing to the periphery of the annular structure; the suction tube is provided with a drain hole and a suction hole, after the suction tube is connected with the negative pressure suction apparatus through the drain hole, the suction tube can suck and discharge flushing fluid absorbed by the water-absorbing sponge outwards through the water suction port, and when the flushing fluid is continuously sucked after being absorbed, the suction tube is further favorable for sucking the water-absorbing sponge from a wet state to a dry state, so that the next water-absorbing capacity of the suction tube is enhanced. According to the drainage device for the unilateral double-channel endoscopic surgery, the release paper is torn off and then the drainage device is pasted on the back of a patient, so that a 'water blocking dam' can be directly formed, the drainage device is rapid and quick, the early-stage preparation of medical staff is reduced, and the surgery time can be shortened; and can adapt to the special appearance of back, the water absorption performance is good, has avoided the operation in-process to the frequent removal of suction tube in order to aspirate the flush fluid, and then has alleviateed work load.

2. The single-side double-channel drainage device for endoscopic surgery further comprises a covering film, wherein the covering film covers the upper part of the annular structure and the area outside the annular structure, and part of the covering film outside the annular structure is adhered to the isolation film. When the washing liquid exceeds the adsorption capacity of the water-absorbing sponge too much, the arrangement of the covering film ensures that the washing liquid cannot flow out of the annular structure, thereby avoiding infection and reducing the operation risk;

in addition, cover the position relative with the middle part cavity of loop configuration of membrane, be equipped with easily tear the part, should easily tear the part be equipped with all around easily tear the hole, when the operation did not begin, keep this easily tear the part, shelter from the protection to the operation region at loop configuration middle part, avoid falling into bacterium etc., the operation begins the back, the doctor can tear this easily tear the part rapidly through easily tearing the hole, operate the operation region, generally speaking, the area less than or equal to loop configuration's middle zone of easily tearing the part.

3. The single-side double-channel drainage device for endoscopic surgery, disclosed by the invention, has the advantages that the water suction pipe is provided with the first connection water suction port which extends inwards from the inner side of the annular structure for a certain length, the first connection water suction port can directly suck flushing liquid which is not adsorbed by water-absorbing sponge, and the first connection water suction port has the advantage that after the first connection water suction port is connected with the negative pressure suction device, local negative pressure can be formed at the position of the first connection water suction port, so that the flushing liquid which is close to the first connection water suction port is quickly sucked away, and after the flushing liquid is completely adsorbed, the adsorption air flow at the position of the first connection water suction port is also favorable for sucking water on the surface of the isolation membrane to dry, and a better dry environment is formed.

4. The single-side double-channel drainage device for endoscopic surgery further comprises an inner-ring water suction pipe, wherein the inner-ring water suction pipe is provided with a plurality of inner-ring water suction ports and second connection water suction ports, is attached to the inner side surface of the annular structure, and is connected with the first connection water suction ports on the water suction pipe. When absorbing outer row at the backwash liquid, the inner circle absorb water pipe can absorb the backwash liquid in advance, then absorb the flush fluid of crossing the inner circle absorb water pipe through the sponge that absorbs water and the pipe that absorbs water and carry out the suction collection to alleviate the pressure of absorbing water of the sponge that absorbs water, in addition, set up the inner circle water absorption mouth on the inner circle absorb water pipe and equally can produce local negative pressure, siphoned away the flush fluid rapidly, be favorable to moreover with the water liquid blotting on barrier film surface, and then form dry environment.

5. The single-side double-channel drainage device for endoscopic surgery further comprises a Y-shaped water suction pipe, wherein the Y-shaped water suction pipe comprises a main water suction pipe and a branch water suction pipe; wherein: one end of the main water suction pipe is connected with the first connection water suction port or the second connection water suction port, and the other end of the main water suction pipe is connected with the two branch water suction pipes; a plurality of water suction ports are uniformly arranged on the water distribution and suction pipe. When a certain position in the operation area has more flushing liquid (such as the position of a back ditch), the sub suction pipes on the Y-shaped suction pipe can be placed in the area with more flushing liquid, so that the aim of quickly collecting the locally accumulated flushing liquid is fulfilled.

6. According to the drainage device for the unilateral double-channel endoscopic surgery, the bottom of the sub-suction pipe is further provided with at least two silicon sheets which are arranged in tandem and can be adhered to the isolation film, and when the sub-suction pipe is placed at a specific position of the isolation film, the silicon sheets and the isolation film are adsorbed together to assist in fixing the position of the suction pipe.

7. The invention relates to a single-side double-channel drainage device for endoscopic surgery, wherein the bottom of a sub-suction pipe is provided with a plurality of bottom suction ports, and the outer sides of the peripheries of the bottom suction ports are provided with protruding points; when dividing the suction tube and placing operation incision position or the more position of flush fluid, divide the suction tube and can follow the suction opening in bottom and aspirate flush fluid under the effect of negative pressure, the gap that forms between the salient point can form airflow channel, and after the flush fluid was accomplished by the suction, the barrier film of this position can be dried.

Drawings

To more clearly illustrate the technical solutions in the prior art or the embodiments of the present invention, the drawings used in the description of the prior art or the embodiments are briefly introduced below.

FIG. 1 is a schematic view of a "dam" set by a surgeon during a unilateral two-channel endoscopic procedure.

Fig. 2 is another angular view of fig. 1.

FIG. 3 is a schematic view showing the basic structure of the drainage device for single-sided double channel endoscopic surgery according to the present invention.

FIG. 4 is a schematic view showing the structure of the Y-shaped barrel connected to the basic structure of the present invention.

FIG. 5 is a schematic diagram showing the connection of the basic structure of the present invention with an inner ring barrel and a Y-shaped barrel.

FIG. 6 is a schematic structural view of a silicone sheet disposed at the bottom of a Y-shaped suction pipe.

Reference numerals: 1. an isolation film; 2. release paper; 3. a water-absorbing sponge; 4. a negative pressure suction tube; 41. A drain hole; 42. a first connection water suction port; 5. an inner ring suction pipe; 51. an inner ring water suction port; 52. the second connecting water suction port; 6. a Y-shaped suction pipe; 61. a main suction pipe; 62. a water diversion and absorption pipe; 63. a water suction port; 64. a silica gel sheet; 65. a bottom water suction port.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings.

Examples

The present embodiment provides a drainage device for single-sided dual-channel endoscopic surgery, as shown in fig. 1, including: the device comprises an isolation film 1, release paper 2, a water absorption sponge 3 and a water absorption pipe; wherein, the isolating membrane 1 has certain length and width and is provided with an adhering surface; the release paper 2 is stuck with the sticking surface of the isolation film 1; the water-absorbing sponge 3 is fixed on the isolation membrane 1 and forms an annular structural area for operation; the suction tube is arranged inside the water absorption sponge 3 and is provided with a suction hole and a drainage hole 41, and a negative pressure suction tube 4 connected with the drainage hole 41.

When the drainage device for the unilateral double-channel endoscopic surgery is applied to the unilateral double-channel endoscopic surgery, the back surgery exposes a small area of a human body, and the water-absorbing sponge 3 has the water-absorbing characteristic, so that flushing fluid discharged from a surgical incision can be quickly absorbed by the water-absorbing sponge 3 which is enclosed to form an annular structure; the water absorption sponge 3 can also block flushing liquid and prevent the flushing liquid from flowing to the periphery of the annular structure; the suction tube is provided with a negative pressure suction tube 4, a drain hole 41 and a suction hole, after the suction tube is connected with the negative pressure suction device through the negative pressure suction tube 4, flushing fluid sucked by the water absorption sponge 3 can be sucked and discharged outwards through the suction hole, and when the flushing fluid is continuously sucked after being absorbed, the suction tube is further favorable for sucking the water absorption sponge 3 from a wet state to a dry state, so that the next water absorption capacity is enhanced.

According to the drainage device, the release paper 2 on the isolation film 1 is torn off before an operation, and then the isolation film 1 is pasted on the back of a human body, so that the operation is very quick, and the preparation time before the operation is greatly saved; and can adapt to the special appearance of back, the water absorption performance is good, has avoided the operation in-process to the frequent removal of suction tube in order to aspirate the flush fluid, and then has alleviateed work load.

The single-side double-channel drainage device for endoscopic surgery of the embodiment is further provided with a covering film (not shown in the figure), the covering film is covered on the upper part of the annular structure and the outer side of the annular structure, and the covering film positioned on the outer side of the annular structure is adhered to the isolation film 1; easy-tearing holes are formed in the periphery of the covering film in the middle of the annular structure. When the flush fluid exceedes the adsorption efficiency of sponge 3 that absorbs water too much, the position that covers membrane and barrier film combination can be stopped unnecessary flush fluid, prevents that the flush fluid from flowing out the loop configuration, avoids infecting, reduces the operation risk. The part of the covering film in the middle of the annular structure is an easy-to-tear part, and easy-to-tear holes are formed in the periphery of the easy-to-tear part; when the operation is not started, the easy-tearing part is reserved, and the operation area in the middle of the annular structure is shielded and protected to avoid bacteria and the like; after the operation begins, the doctor can tear this part of easily tearing rapidly through easily tearing the hole, operates the operation region, and the area of the part of easily tearing is less than or equal to the middle zone of loop configuration.

In the drainage device for the unilateral double-channel endoscopic surgery, the water suction pipe is provided with a first connecting water suction port 42 which penetrates through the annular structure for a certain length, and a drainage hole 41 on the water suction pipe penetrates through the annular structure and then is connected with a negative pressure suction pipe; when the flush fluid is more, first connection water sucking mouth 42 can directly absorb the flush fluid that has not been absorbed by the sponge 3 that absorbs water yet, after the wash port 41 is connected with the negative pressure suction tube on the negative pressure suction device, first connection water sucking mouth 42 position can form local negative pressure to will inhale away rapidly apart from this first connection water sucking mouth 42 nearer flush fluid, and after the flush fluid is adsorbed totally, the absorption air current of first connection water sucking mouth 42 position also is favorable to absorbing dry with the water liquid on barrier film 1 surface, form better dry environment.

The single-side double-channel drainage device for endoscopic surgery of the embodiment further comprises an inner-ring water suction pipe 5, wherein the inner-ring water suction pipe 5 is connected with the first connection water suction ports 42, is attached to the inner side surface of the annular structure, and is provided with a plurality of inner-ring water suction ports 51 and a second connection water suction port 52 extending from the middle part; when the washing liquid is adsorbed and discharged outside, the washing liquid can be absorbed by the inner-ring water absorption pipe 5 in advance, and then the washing liquid flowing through the inner-ring water absorption pipe 5 is sucked and collected through the water absorption sponge 3 and the water absorption pipe, so that the water absorption pressure of the water absorption sponge 3 is relieved; in addition, the inner ring water suction port 51 arranged on the inner ring water suction pipe 5 can also generate local negative pressure to quickly suck away flushing liquid, and is favorable for sucking water liquid on the surface of the isolation membrane 1 to form a dry environment, thereby providing convenience for the operation.

As shown in fig. 4-5, the single-sided dual-channel drainage device for endoscopic surgery of this embodiment further includes a Y-shaped suction pipe 6, where the Y-shaped suction pipe 6 includes a main suction pipe 61 and a branch suction pipe 62; wherein: one end of the main suction pipe 61 is detachably connected with the first connection suction port 42 or the second connection suction port 52, the other end is connected with two branch suction pipes 62, and a plurality of suction ports 63 are uniformly arranged on the two branch suction pipes 62. When a certain position in the operation area has more flushing liquid (such as a back ditch position), the sub-suction pipe 62 on the Y-shaped suction pipe 6 can be placed in the area with more flushing liquid, so that the quick collection of the locally accumulated flushing liquid is realized.

As shown in fig. 6, in the drainage device for single-sided two-channel endoscopic surgery of the present embodiment, the bottom of the Y-shaped suction tube 6 is provided with a plurality of silicone sheets 64 adhered to the isolation film 1, and the bottom of the sub-suction tube 62 is at least provided with one front and one back; when dividing the suction tube 62 and placing in the specific position of barrier film 1, the silicone piece 64 can be stained with barrier film 1 and inhaled together, carries out the auxiliary fixation to the suction tube, avoids the suction tube to remove when inhaling the flush fluid.

The single-side double-channel drainage device for endoscopic surgery of the embodiment is characterized in that the bottom of the water dividing and absorbing pipe 62 is provided with a plurality of bottom water absorbing openings 65, the bottom water absorbing openings 65 are located between the two silica gel sheets 64, at least three protruding points are further arranged around the bottom water absorbing openings 65, and a certain distance is reserved between any two protruding points. When dividing the suction tube 62 and placing in operation incision position or the more position of flush fluid, divide suction tube 62 and can follow bottom water sucking mouth 65 with the flush fluid suction under the effect of negative pressure, the gap that forms between the salient point can form the air current passageway, and after the flush fluid is sucked and is accomplished, can dry the barrier film 1 of this position.

The use method of the drainage device for the unilateral double-channel endoscopic surgery comprises the following steps:

when in use, the Y-shaped suction pipe 6 is connected with the second connecting suction port 52 in advance according to needs, and the inner ring suction pipe 5 is connected with the first connecting suction port 42, or can be connected again according to needs in the operation;

then the middle part of the water-absorbing sponge 3 which is arranged on the isolating membrane 1 and forms a ring structure is basically aligned with the position to be operated;

tearing off the release paper 2 from the isolating film 1, and sticking the isolating film 1 on the skin surface of the back of the human body to enable the operation position to be positioned in the middle of the annular structure;

then connecting the negative pressure suction tube 4 connected with the suction tube with the negative pressure suction tube;

tearing off the easy-to-tear part on the covering film, starting an operation, and starting a negative pressure suction apparatus to suck water from a water suction pipe when the operation part is washed by using normal saline;

according to the position of the flushing liquid on the isolation membrane 1, the water dividing and sucking pipe 62 is moved to the position near the flushing liquid, the silicon sheet 64 is adhered to the isolation membrane 1, and the flushing liquid is sucked through the bottom water sucking port 65.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims (9)

1. The utility model provides a drainage device is used in unilateral binary channels endoscopic surgery which characterized in that: the method comprises the following steps:

the isolating membrane (1) has certain length and width, is provided with an adhesive surface and is suitable for being attached to the surface of human skin;

the release paper (2) is detachably connected with the sticking surface of the isolation film (1) in a sticking way;

the water absorption sponge (3) is fixedly connected above the isolating membrane (1) to form an annular structure, and the middle part of the annular structure is an operation area;

the water suction pipe is arranged inside the water suction sponge (3) and is provided with a plurality of water suction holes and a drain hole (41), and the drain hole (41) is suitable for being detachably connected with an external negative pressure suction pipe.

2. The single-sided two-channel drainage device for endoscopic surgery according to claim 1, characterized in that: the isolation film is characterized by further comprising a covering film, wherein the covering film covers the area outside the annular structure and the upper part of the area, and the part outside the annular structure is adhered to the isolation film (1).

3. The single-sided two-channel drainage device for endoscopic surgery according to claim 1, characterized in that: the barrel has a first connection scoop (42) extending inwardly from the inside of the ring-shaped structure by a length.

4. The single-sided two-channel drainage device for endoscopic surgery according to claim 3, characterized in that: the water-absorbing structure is characterized by further comprising an inner ring water-absorbing pipe (5), wherein the inner side face of the attaching annular structure is arranged and can be connected with the first connecting water-absorbing port (42), and a plurality of inner ring water-absorbing ports (51) are arranged on the inner ring water-absorbing pipe (5).

5. The single-sided two-channel drainage device for endoscopic surgery according to claim 4, characterized in that: the inner ring suction pipe (5) is also provided with a second connecting suction port (52) extending towards the middle part.

6. The single-sided two-channel drainage device for endoscopic surgery according to claim 5, characterized in that: still include Y type suction tube (6), Y type suction tube (6) include one main suction tube (61) and two branch suction tube (62), the one end of main suction tube (61) can with first connection suction opening (42) or second connection suction opening (52) can be dismantled and be connected, two evenly be equipped with a plurality of suction openings (63) on branch suction tube (62).

7. The single-sided two-channel drainage device for endoscopic surgery according to claim 6, characterized in that: divide and absorb water pipe (62) bottom to be equipped with two at least silica gel pieces (64), silica gel piece (64) are suitable for the adhesion absorption on barrier film (1).

8. The single-sided two-channel drainage device for endoscopic surgery according to claim 7, characterized in that: the water-absorbing device also comprises a plurality of bottom water-absorbing openings (65) which are arranged at the bottoms of the water-separating and absorbing pipes (62) and are positioned between two adjacent silica gel sheets (64).

9. The single-sided two-channel drainage device for endoscopic surgery according to claim 8, characterized in that: at least three protruding points are arranged on the outer side of the periphery of the bottom water suction port (65), and a gap is formed between any two protruding points.

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