CN219941368U - Drainage bag back bag - Google Patents

Abstract

The utility model relates to the technical field of medical aids, in particular to a drainage bag back bag. The storage device comprises a bag body provided with a storage cavity and a shoulder strap, wherein a fastener for adjusting the length of the shoulder strap is arranged on the bag body, one end of the shoulder strap is fixedly connected with the bag body, and the other end of the shoulder strap is detachably connected with the bag body through the fastener; the top of the bag body is provided with a fixing piece, one end of the fixing piece is fixedly connected with the bag body, one end of the fixing piece is provided with a first connecting portion, the other end of the fixing piece is provided with a second connecting portion, the first connecting portion is detachably connected with the second connecting portion, and a limiting cavity is formed in the fixing piece when the first connecting portion is connected with the second connecting portion. The utility model overcomes the defect that the prior art uses the pin to fix the drainage tube, which possibly hurts a patient, and the drainage tube can be fixed by arranging the fixing piece on the bag body, so the operation is simple and quick, the fixing piece is not easy to fall off from the bag body, and the operation is safer.

Description

Drainage bag back bag

Technical Field

The utility model relates to the technical field of medical aids, in particular to a drainage bag back bag.

Background

The drainage operation is a treatment means of surgery, which is a technology of guiding pus, blood or other liquid accumulated in human tissue or body cavity to outside or in a dirty cavity, in the treatment process, the blood seepage, effusion and the like in the body or local operation depth of a patient need to be led out by a drainage tube, one end of the drainage tube is sewed on the skin of the patient, and the other end of the drainage tube is connected with a transparent plastic bag for receiving effusion in the patient, and the transparent plastic bag is the drainage bag. Because the patient needs to carry the drainage bag with him or her when he or she needs to get off the bed to walk, in order to avoid psychological burden on the patient caused by holding the drainage bag, a back bag is generally provided for the patient and the drainage bag is hidden in the back bag, so that the patient can walk with the back bag, and psychological influence of the exposure of the drainage bag on the patient is reduced; when the patient returns to the sickbed, the drainage bag is taken out from the back bag and hung on the hook beside the sickbed.

The utility model discloses a drainage bag knapsack, including the inclusion and with the fixed braces that links to each other of inclusion, be provided with the plastics regulation knot of adjustment braces length on the braces, be equipped with first holding chamber from left to right in the inclusion, second holding chamber and third holding chamber, first holding chamber bottom is linked together with second holding chamber bottom, the second holding intracavity is equipped with spacing subassembly, spacing subassembly is including being fixed in the spacing cardboard of second holding intracavity wall and being located the limiting plate of spacing cardboard bottom, be equipped with on the spacing cardboard and link up the limiting plate and be used for the card to establish the spacing mouth of drainage tube, form the draw-in groove that is used for fixed drainage bag between the diapire of limiting plate and second holding chamber, be equipped with the viewing aperture that link up with the corresponding position department in second holding chamber on the inclusion, spacing subassembly is located viewing aperture top.

The knapsack of the prior art has no structure capable of fixing the drainage tube, and because the drainage tube is longer, the drainage tube needs to be wound for a plurality of circles and then the drainage tube section of each circle formed by winding is used by the pin and is simultaneously attached to the top of the knapsack, so that the drainage tube is prevented from dragging on the ground to pull a wound of a patient, and the drainage tube is also prevented from winding and knotting in the knapsack. However, the pin may be loosened and dropped during the walking process of the patient to hurt the patient, and potential safety hazard exists.

Disclosure of Invention

Aiming at the problem that the drainage tube is possibly stabbed by using the pin to fix the drainage tube in the prior art, the utility model provides the drainage bag back bag which not only can fix the drainage tube at the top of the back bag, but also can not have potential safety hazard.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the drainage bag back bag comprises a bag body provided with a storage cavity and a shoulder strap, wherein a fastener for adjusting the length of the shoulder strap is arranged on the bag body, one end of the shoulder strap is fixedly connected with the bag body, and the other end of the shoulder strap is detachably connected with the bag body through the fastener; the top of the bag body is provided with a fixing piece, one end of the fixing piece is fixedly connected with the bag body, a first connecting portion is arranged on the fixing piece, a second connecting portion is arranged at the other end of the fixing piece, the first connecting portion is detachably connected with the second connecting portion, and a limiting cavity is formed in the fixing piece when the first connecting portion is connected with the second connecting portion.

In the technical scheme, when a patient needs to get out of the bed to walk, the drainage bag is firstly placed in the storage cavity, and at the moment, the two ends of the fixing piece are in an unconnected state; then winding the drainage tube for a certain number of turns, simultaneously hanging each turn of drainage tube section between two ends of the fixing piece, connecting a second connecting part positioned at the free end of the fixing piece with a first connecting part positioned at the fixed end of the fixing piece to form a limiting cavity, and surrounding the drainage tube section in the limiting cavity, so that the drainage tube is fixed on the fixing piece; finally, the length of the shoulder strap is adjusted to enable the shoulder strap to adapt to the body height and the body shape of the patient, and then the shoulder strap is hung on the shoulder of the patient to enable the patient to wear. Because the fixing piece is fixedly connected with the bag body, the fixing piece does not need to be worried about loosening and falling off from the bag body in the walking process of the patient. After the patient returns to the sickbed, the bag body is taken down from the patient and hung on the hook of the sickbed.

The connection mode of the first connection part and the second connection part can be one of bonding, buckling connection and threaded connection.

Preferably, the first connecting portion includes a hook portion disposed at one side of the fixing member, and the second connecting portion includes a burr portion disposed at the other side of the fixing member. After the drainage tube is wound between the two ends of the fixing piece, the rough surface part of the free end of the fixing piece is stuck on the hook surface part of the fixed end of the fixing piece to form a limiting cavity, so that the drainage tube is bound on the fixing piece. The hair surface part and the hook surface part are equivalent to the female surface and the male surface of the magic tape, the sticking buckle and the tearing of the two parts are quicker and more convenient, the weight of the two parts is lighter, and the cost is lower.

Preferably, the burr portions are continuously arranged along the length direction of the fixing member. Because the lengths of different drainage tubes are different, the number of turns required to be wound is different, and the size of a limiting cavity required to be occupied by the wound drainage tube is different. After the hair faces are continuously arranged along the length direction of the fixing piece, any positions of the hair faces can be adhered with the hook faces, so that limiting cavities with different sizes are formed, and the binding and fixing requirements of drainage tubes with different winding turns are met.

Preferably, the fixing pieces are arranged in a plurality, and the fixing pieces are distributed at intervals on the top of the bag body. A plurality of drainage bags are carried on a part of patients, and one drainage bag corresponds to one drainage tube, so that a plurality of fixing pieces are arranged to fix a plurality of drainage tubes, and therefore the drainage tubes are prevented from being intertwined and knotted.

Preferably, the bag body is provided with a supporting plate, and a plurality of fixing pieces are connected with the supporting plate. Because the weight of different drainage tubes on the fixing piece is different, the drainage tube with larger weight can generate larger pulling force to the fixing piece to cause partial collapse of the top of the bag body, so that all the fixing pieces and the drainage tube positions on all the fixing pieces are changed to lead the skin of a patient to be involved, the supporting plate is arranged to support the fixing piece and the drainage tube on the fixing piece, each fixing piece can be kept at the original height position, and the partial collapse of the top of the bag body is avoided.

In order to prevent the hard support plate from generating impact force to the patient and causing discomfort to the patient, it is preferable that a buffer layer is provided on a side of the support plate away from the storage chamber. The buffer layer can buffer the impact force of the supporting plate to the patient, and the carrying comfort level of the bag body is improved.

Wherein the buffer layer can be a soft material layer such as a sponge layer, a latex layer, a silica gel layer, etc. which can be in direct contact with human skin.

Preferably, the buffer layer is a sponge layer. The sponge layer has better buffering shock resistance to the sponge layer is lighter, can reduce the weight of the bag body.

Preferably, a hanging part for hanging on a sickbed lifting hook is arranged at the top of the bag body. When a patient returns to a sickbed, the bag body is required to be hung on the sickbed, the shoulder belt is not sanitary enough to be directly hung on the hook of the sickbed, and the hanging part can be hung on the hook of the sickbed after the hanging part is arranged, so that the shoulder belt is prevented from contacting with the hook of the sickbed.

When only one hanging part is arranged, the bag body can be greatly deformed during hanging, so that the drainage bags in the bag body are mutually extruded to finally cause the liquid in the drainage bags to flow back to the patient, and therefore, the hanging part is preferably provided with at least two hanging parts, and at least two hanging parts are respectively positioned at the two ends of the top of one side surface of the bag body. After more than two hanging parts are arranged, the bag body is provided with more than two supporting points which are fixed on the patient bed, so that the bag body keeps a certain shape, and the drainage bag in the bag body also keeps a balanced state.

Preferably, a liquid outlet is formed in the bottom of the bag body, and the storage cavity is communicated to the outside of the bag body through the liquid outlet. Because medical staff need pour out the liquid in the drainage bag and record the liquid amount every 12 hours, if the drainage bag is taken out from the bag body, the drainage tube needs to be repeatedly disassembled and fixed; after the liquid outlet is formed, medical staff only needs to let the liquid outlet of the drainage bag pass through the liquid outlet, and the liquid in the drainage bag can be poured out after the liquid outlet of the drainage bag is exposed outside the bag body, so that the drainage bag and the drainage tube are not required to be detached from the bag body and taken out, the labor intensity of the medical staff can be reduced, and the working efficiency of the medical staff can be improved.

In order to avoid that the liquid in the drainage bag is filled before pouring out the record, preferably, a shielding curtain is arranged on the bag body, the top edge of the shielding curtain is connected with the top edge of the bag body, and the bag body is made of transparent materials. The patient or medical staff can lift the shielding curtain and directly check the liquid storage condition of the drainage bag through the bag body, and put down the shielding curtain after checking the liquid storage condition of the drainage bag, so that the drainage bag is continuously hidden in the storage cavity. The transparent bag body enables enough light rays in the storage cavity, so that a patient or medical staff can clearly see the liquid storage condition of the drainage bag, and the drainage bag does not need to be taken out of the storage cavity.

The utility model has the beneficial effects that: the fixing piece is arranged at the top of the bag body, so that the drainage tube can be fixed, the operation of fixing the drainage tube is simple, convenient and quick, the fixing piece is not easy to fall off from the bag body, and the safety is improved; a plurality of fixing pieces are arranged to fix a plurality of drainage tubes, when a patient carries a plurality of drainage bags, each drainage tube can be fixed, and the plurality of drainage tubes can be prevented from being intertwined and knotted; the hanging part is arranged to facilitate the patient to hang the bag body on the lifting hook of the sickbed, so that the shoulder belt can be prevented from being in direct contact with the lifting hook of the sickbed, and the sickbed is cleaner and more sanitary; the liquid outlet is arranged at the bottom of the bag body, and the liquid of the drainage bag can be directly poured out through the liquid outlet without taking the drainage bag out of the bag body, so that the labor intensity of medical staff can be relieved, and the working efficiency of the medical staff is improved.

Drawings

FIG. 1 is a schematic view of the structure of a drainage bag of the embodiment 1 or 2;

FIG. 2 is a schematic structural view of a fastener;

FIG. 3 is a schematic view of the structure of a drainage bag of the embodiment 3;

fig. 4 is a schematic view of the structure of the bottom of the bag.

In the accompanying drawings: 1-a bag body; 101-a storage chamber; 102-a liquid outlet; 2-shoulder straps; 3-a fastener; 4-fixing pieces; 401-hooking part; 402-a hair portion; 403-a spacing cavity; 5-supporting plates; 6-a buffer layer; 7-a hanging part; 8-connecting sheets.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationship depicted in the drawings is for illustrative purposes only and is not to be construed as limiting the present patent.

The same or similar reference numbers in the drawings of embodiments of the utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "long", "short", etc., based on the orientations or positional relationships shown in the drawings, this is merely for convenience in describing the present utility model and simplifying the description, and is not an indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present patent, and that it is possible for those of ordinary skill in the art to understand the specific meaning of the terms described above according to specific circumstances.

The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:

example 1

The drainage bag back bag shown in the combination of fig. 1 and 2 comprises a bag body 1 provided with a storage cavity 101 and a shoulder strap 2, wherein the top of the bag body 1 is connected with a fastener 3 for adjusting the length of the shoulder strap 2, one end of the shoulder strap 2 is fixedly connected with the bag body 1, and the other end of the shoulder strap 2 is detachably connected with the bag body 1 through the fastener 3; the top of the bag body 1 is provided with a fixing piece 4, specifically, the top of the bag body 1 is provided with a connecting piece 8, one end of the fixing piece 4 is sewed on the connecting piece 8, and the fixing piece 4 is fixedly connected with the bag body 1 through the connecting piece 8. It should be noted that, the fixed end of the fixing element 4 may be directly sewn on the top of the bag body 1, and the fixing element 4 in this embodiment is fixedly connected to the top of the bag body 1 through the connecting piece 8. Further, the fixed end of the fixing piece 4 is provided with a first connecting portion, the free end of the fixing piece 4 is provided with a second connecting portion, the first connecting portion is detachably connected with the second connecting portion, and a limiting cavity 403 is formed in the fixing piece 4 when the first connecting portion is connected with the second connecting portion.

Specifically, the first connecting portion includes a hook portion 401 disposed on one side of the fixing member 4, and the second connecting portion includes a burr portion 402 disposed on the other side of the fixing member 4. After the drainage tube is wound between the two ends of the fixing piece 4, the rough surface part 402 of the free end of the fixing piece 4 is stuck on the hook surface part 401 of the fixed end of the fixing piece 4 to form a limiting cavity 403, so that the drainage tube is bound on the fixing piece 4. The rough surface part 402 and the hook surface part 401 are equivalent to the female surface and the male surface of the magic tape, the hook and loop fastener and the tearing of the two parts are quicker and more convenient, the weight of the two parts is lighter, and the cost is lower.

Specifically, the hooking portion 401 and the roughened portion 402 are each arranged continuously along the length direction of the fixing member 4. Because the lengths of different drainage tubes are different, the number of turns to be wound is different, and the diameters of limiting cavities 403 which are needed to be occupied by the wound drainage tubes are different. After the wool surface part 402 is continuously arranged along the length direction of the fixing piece 4, any position of the wool surface part 402 can be adhered with the hook surface part 401 to form limit cavities 403 with different diameters, so that the binding and fixing requirements of drainage tubes with different winding turns are met; after the hook part 401 is continuously arranged along the length direction of the fixing piece 4, the hair part 402 can be quickly adhered to any position of the hook part 401, so that the fixing efficiency of the drainage tube is improved.

Further, the fixing pieces 4 are provided with 4, and the 4 fixing pieces 4 are distributed on the connecting piece 8 at intervals along the length direction of the connecting piece 8. Similarly, the 4 fixing pieces 4 may be all directly distributed on the top of the bag body 1, and in this embodiment, the 4 fixing pieces are all distributed on the connecting piece 8 so as to be located on the top of the bag body 1. A part of patients carry a plurality of drainage bags, and one drainage bag corresponds to one drainage tube. 4 drainage tubes can be fixed by arranging 4 fixing pieces 4, and the drainage tubes are prevented from intertwining and knotting.

The working principle or workflow of the present embodiment: when a patient needs to get out of the bed to walk, the drainage bag is firstly placed in the storage cavity 101, and at the moment, the two ends of the fixing piece 4 are in an unconnected state; then, after the drainage tube is wound for a certain number of turns, each turn of drainage tube section is hung between two ends of the fixing piece 4, and then the rough surface part 402 at the free end of the fixing piece 4 is adhered with the hook surface part 401 at the fixed end of the fixing piece 4 to form a limiting cavity 403, and the drainage tube section is enclosed in the limiting cavity 403, so that the drainage tube is fixed on the fixing piece 4; finally, the length of the shoulder strap 2 is adjusted to enable the shoulder strap 2 to adapt to the height and the shape of the patient, and then the shoulder strap 2 is hung on the shoulder of the patient to enable the patient to wear. Because the fixing piece 4 is fixedly connected with the bag body 1, the fixing piece 4 does not need to be loose and drop from the bag body 1 in the walking process of the patient. After the patient returns to the sickbed, the bag body 1 is taken down from the patient and the bag body 1 is hung on the hook of the sickbed.

The beneficial effects of this embodiment are: the fixing piece is arranged at the top of the bag body, so that the drainage tube can be fixed, the operation of fixing the drainage tube is simple, convenient and quick, the fixing piece is not easy to fall off from the bag body, and the safety is improved; the plurality of drainage tubes are fixed by the plurality of fixing pieces, when a patient carries the plurality of drainage bags, each drainage tube can be fixed, and the plurality of drainage tubes can be prevented from intertwining and knotting.

Example 2

In this embodiment, on the basis of embodiment 1, as shown in fig. 1, a support plate 5 is provided outside a bag body 1, a connecting piece 8 is connected with the support plate 5 through the bag body 1, and a fixing piece 4 is connected with the support plate 5 through the connecting piece 8 and the bag body 1. Because the weight of different drainage tubes on the fixing piece 4 is different, the drainage tubes with larger weight can generate larger pulling force on the fixing piece 4 to cause partial collapse of the top of the bag body 1, so that all the fixing pieces 4 and the drainage tube positions on all the fixing pieces 4 are changed to lead the skin of a patient to be involved, and the supporting plate 5 is arranged to support the bag body 1 and the connecting piece 8, so that the fixing piece 4 is supported at the original height position, and the partial collapse of the top of the bag body 1 is avoided. It should be noted that the support plate 5 may also be disposed in the storage chamber 101.

In order to prevent the hard support plate 5 from generating impact force to the patient and causing discomfort to the patient, further, a buffer layer 6 is provided on the side of the support plate 5 remote from the storage chamber 101. The buffer layer 6 can buffer the impact force of the supporting plate 5 to the patient, and the carrying comfort of the bag body 1 is improved.

Specifically, the buffer layer 6 is a sponge layer. The sponge layer has better buffering shock resistance to the sponge layer is lighter, can reduce the weight of the bag body 1.

Other features, operating principles, and advantageous effects of the present embodiment are consistent with those of embodiment 1.

Example 3

In this embodiment, on the basis of embodiment 2, as shown in fig. 1, a hanging portion 7 for hanging on a sickbed hook is provided at the top of the bag body 1, and specifically, the hanging portion 7 is in a ring shape. When a patient returns to a sickbed, the bag body 1 needs to be hung on the sickbed, but the shoulder belt 2 is directly hung on the hook of the sickbed, so that the patient is not sanitary, and after the hanging part 7 is arranged, the hanging part 7 can be hung on the hook of the sickbed, thereby avoiding the contact between the shoulder belt 2 and the hook of the sickbed.

When only one hanging part 7 is arranged, the bag body 1 can be greatly deformed during hanging, so that the drainage bags in the bag body 1 are mutually extruded, and finally liquid in the drainage bags flows back into a patient; therefore, two hanging parts 7 are arranged, and the two hanging parts 7 are respectively positioned at the two ends of the top of one side of the bag body 1, where the connecting piece 8 is positioned. After the two hanging parts 7 are arranged, the bag body 1 is provided with two supporting points which are fixed on the patient bed, so that the bag body 1 keeps a certain shape, and the drainage bag in the bag body 1 also keeps a balanced state.

Other features, operating principles and advantageous effects of the present embodiment are consistent with those of embodiment 2.

Example 4

In the embodiment, on the basis of the embodiment 2, as shown in fig. 3, a hanging part 7 for hanging on a sickbed hook is arranged at the top of the bag body 1, and the hanging part 7 is a through hole structure arranged on the side wall of the bag body 1; specifically, two hanging parts 7 are provided, and the two hanging parts 7 are respectively positioned at two ends of the top of one side of the bag body 1 far away from the connecting sheet 8.

Other features, operating principles and advantageous effects of the present embodiment are consistent with those of embodiment 2.

Example 5

In this embodiment, on the basis of embodiment 3 or embodiment 4, as shown in fig. 1 and 4, 4 liquid outlets 102,4 are provided at the bottom of the bag body 1, and corresponding to 4 drainage bags, the storage cavity 101 is communicated to the outside of the bag body 1 through the liquid outlets 102. As medical staff needs to pour out the liquid in the drainage bag and record the liquid quantity every 12 hours, if the drainage bag is taken out of the bag body 1, the drainage tube needs to be repeatedly disassembled and fixed; after the liquid outlet 102 is formed, medical staff only needs to let the liquid outlet mouth of the drainage bag pass through the liquid outlet 102, and the liquid in the drainage bag can be poured out after the liquid outlet mouth of the drainage bag is exposed outside the bag body 1, so that the drainage bag and the drainage tube are not required to be detached from the bag body 1 and taken out, the labor intensity of the medical staff can be reduced, and the working efficiency of the medical staff can be improved.

Further, in order to avoid that the drainage bag is filled with liquid before pouring out the record, a shielding curtain (not shown in the figure) is arranged on the bag body 1, the top edge of the shielding curtain is connected with the top edge of the bag body 1, and the bag body 1 is made of transparent materials. The patient or medical staff can lift the shielding curtain and directly check the liquid storage condition of the drainage bag through the bag body 1, and put down the shielding curtain after checking the liquid storage condition of the drainage bag, so that the drainage bag is continuously hidden in the storage cavity 101. The transparent bag body 1 enables enough light rays to exist in the storage cavity 101, so that a patient or medical staff can clearly see the liquid storage condition of the drainage bag conveniently, and the drainage bag does not need to be taken out of the storage cavity 101 when the liquid storage condition in the drainage bag needs to be checked.

The shielding curtain may be located outside the bag 1 or may be located in the storage cavity 101 of the bag 1.

Other features, operating principles and advantageous effects of the present embodiment are consistent with those of embodiment 3 or embodiment 4.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides a drainage bag knapsack, includes bag body (1) and baldric (2) that are equipped with storage chamber (101), be equipped with on the bag body (1) and be used for adjusting fastener (3) of baldric (2) length, the one end of baldric (2) with bag body (1) fixed connection, the other end of baldric (2) is passed through fastener (3) with bag body (1) can dismantle and be connected, a serial communication port, the top of bag body (1) is equipped with mounting (4), the one end of mounting (4) with bag body (1) fixed connection, the one end of mounting (4) is equipped with first connecting portion, the other end of mounting (4) is equipped with second connecting portion, first connecting portion with second connecting portion can dismantle and be connected, works as first connecting portion with when second connecting portion connects form spacing chamber (403) on mounting (4).

2. The drainage bag back pack according to claim 1, wherein the first connection portion comprises a hook portion (401) provided on one side of the fixing member (4), and the second connection portion comprises a burr portion (402) provided on the other side of the fixing member (4).

3. A drainage bag back according to claim 2, wherein the roughened portion (402) is continuously arranged along the length of the securing member (4).

4. The drainage bag knapsack according to claim 1, wherein a plurality of fixing members (4) are provided, and a plurality of fixing members (4) are distributed at intervals on the top of the bag body (1).

5. The drainage bag knapsack according to claim 4, wherein the bag body (1) is provided with a support plate (5), and a plurality of fixing pieces (4) are connected with the support plate (5).

6. The drainage bag back pack according to claim 5, wherein the side of the support plate (5) remote from the storage cavity (101) is provided with a buffer layer (6).

7. The drainage bag haversack according to claim 4, characterized in that the top of the bag body (1) is provided with a hanging part (7) for hanging on a sickbed hook.

8. The drainage bag back bag according to claim 7, wherein at least two hanging parts (7) are arranged, and at least two hanging parts (7) are respectively arranged at two ends of the top of one side surface of the bag body (1).

9. The drainage bag back bag according to claim 1, wherein a liquid outlet (102) is formed in the bottom of the bag body (1), and the storage cavity (101) is communicated to the outside of the bag body (1) through the liquid outlet (102).

10. A drainage bag back according to any of claims 1 to 9, wherein a curtain is provided on the bag body (1), the top edge of the curtain being connected to the top edge of the bag body (1); the bag body (1) is made of transparent materials.