CN112957182B

CN112957182B - Biological medicine wound dressing

Info

Publication number: CN112957182B
Application number: CN202110189685.9A
Authority: CN
Inventors: 李心怡; 王赛
Original assignee: First Affiliated Hospital of Anhui Medical University
Current assignee: First Affiliated Hospital of Anhui Medical University
Priority date: 2021-02-19
Filing date: 2021-02-19
Publication date: 2022-12-09
Anticipated expiration: 2041-02-19
Also published as: CN112957182A

Abstract

The invention discloses a biomedical wound dressing, and belongs to the technical field of biomedical dressings. The utility model provides a biological medicine wound surface dressing, which comprises a roof, the inside downside in weeping hole is equipped with the plectane, plectane top surface bilateral symmetry has set firmly two extension spring B, roof bottom surface middle part has set firmly the post of inserting for the position in weeping hole, liquid medicine box top surface bilateral symmetry has set firmly two sideboard, the limit groove has been seted up for the position of sideboard to the roof outer wall, the piece groove has been seted up at limit inslot lateral wall middle part, piece groove outside end is equipped with the joint piece, the joint groove has been seted up for the position of joint piece to sideboard inner wall, joint piece top surface medial extremity has set firmly and has dialled the board, the board groove has been seted up for the position of dialling the board to piece tank top surface, it has set firmly two compression spring to be symmetrical structure between joint piece inside wall and the piece inslot lateral wall. The invention has ingenious design, realizes the recycling of the dressing, and effectively improves the help of the dressing to the wound healing speed of a patient through the arrangement of the liquid medicine box.

Description

Biological medicine wound dressing

Technical Field

The invention relates to the technical field of biomedical dressings, in particular to a biomedical wound dressing.

Background

In hospitals, a large number of patients who suffer from injuries caused by accidents are required to receive everyday, wherein wounds are on four limbs and do not relate to patients at critical positions, medical staff usually apply a medicament first and then wrap a dressing, the dressing refers to auxiliary materials except main materials of articles, mainly refers to hemostatic absorbent cotton, traditional dressings are mainly dry absorbent cotton and oily yarns, modern wound dressings comprise interactive wound dressings, calcium alginate dressings, silver dressings, foam dressings, hydrocolloid dressings and hydrogel dressings, and through retrieval, the prior art (application number: CN 201310535027.6) discloses a medical wound dressing with an anti-infection function, and the inventor finds that the following problems exist while realizing the prior art: 1. the device is troublesome in the process of wrapping the wound, improves the working strength of corresponding workers, and cannot reasonably treat the wound of a patient timely and quickly; 2. in addition, most of the existing dressings can only be used for covering sores, wounds or other damages, the whole healing process of the wounds is not promoted, medical workers need to smear medicines for promoting healing on the wounds before the dressings cover the wounds, however, the wounds of patients are always exposed in the air in the process, the infection risk is increased, furthermore, the existing dressings are mostly simply wrapped on the wounds by absorbent cotton or bandages, and therefore, the medical workers often use a large amount of absorbent cotton for wrapping more closely, and great waste is generated.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a biomedical wound dressing to solve the problems in the background technology.

2. Technical scheme

A biomedical wound dressing comprises a top plate, wherein two bottom plates are symmetrically arranged on two sides below the top plate, the outer side ends of the bottom plates are connected with the bottom surface of the top plate and the inner side ends of the two bottom plates through two extension springs A which are symmetrically and fixedly arranged, non-woven fabrics are bonded on two sides of the inner wall of the top plate and the inner wall of the bottom plate, the positions of the inner walls of the top plate and the bottom plate relative to the non-woven fabrics are in a square matrix arrangement structure, a plurality of air holes are formed, two baffles are fixedly arranged on the middle parts of the outer walls of the top plate and the bottom plate in a symmetrical structure, the inner side walls of the two baffles are in clearance fit to form clamping grooves, rubber bands are sleeved on the outer sides of the plurality of clamping grooves, a liquid medicine box is arranged in the middle part of the top surface of the top plate, two magic tape female tapes are fixedly arranged on two sides of the bottom surface of the liquid medicine box, gauze is arranged below the liquid medicine box, grooves are formed on two sides of the top surface of the gauze relative to the positions of the magic tape female tapes, the bottom surface of the groove is embedded with a magic sticker, the bottom surface of the gauze is fixedly provided with absorbent cotton, the middle part of the top surface of the liquid medicine box is penetrated and provided with a liquid medicine groove relative to the middle part of the top surface of the gauze, the bottom surface of the liquid medicine groove is provided with a plurality of liquid leakage holes in a square array arrangement, the lower side inside the liquid leakage holes is provided with a circular plate, two stretching springs B are symmetrically and fixedly arranged on two sides of the top surface of the circular plate, the middle part of the bottom surface of the top plate is fixedly provided with an insert column relative to the position of the liquid leakage holes, two side plates are symmetrically and fixedly arranged on two sides of the top surface of the liquid medicine box, the outer wall of the top plate is provided with a side groove relative to the position of the side plate, the outer side end of the side groove is provided with a clamping block, the inner wall of the side plate is provided with a clamping groove relative to the position of the clamping block, the inner side end of the top surface of the clamping block groove is provided with a plate groove relative to the clamping block, two compression springs are fixedly arranged between the inner side wall of the clamping block and the inner side wall of the block groove in a symmetrical structure.

Preferably, the top plate is of a half-ring structure, the bottom plate is of a quarter-ring structure, both sides of the top plate and the bottom plate are made of rubber, and the middle of the top plate is made of plastic.

Preferably, the baffle is of an arc-shaped structure, the rubber band is matched with the clamping grooves in a clamping mode, and the inner wall of the rubber band is in extrusion fit with the outer walls of the top plate and the bottom plate.

Preferably, the gauze is T type structure, the magic is pasted female and is pasted the bonding cooperation with the magic, the height of recess is the same with the height that the magic was pasted female, gauze top surface middle part and the inseparable laminating of liquid medicine box bottom surface.

Preferably, the middle part of the top surface of the liquid medicine box is of an arc structure with the radian identical to that of the top surface of the inner wall of the top plate, the outer wall of the circular plate is in sliding contact with the lower end of the inner wall of the liquid leakage hole, and the outer side end of the extension spring B is fixedly connected with the inner wall of the liquid leakage hole.

Preferably, the diameter of the insertion column is smaller than that of the leakage hole, the lower end of the insertion column is of a hemispherical structure, the insertion column is in insertion fit with the leakage hole, the lower end of the insertion column is in extrusion fit with the middle of the top surface of the circular plate, and the height of the insertion column is larger than that of the leakage hole.

Preferably, the sideboard top surface is the arc structure that radian and roof top surface radian are the same, the sideboard is pegged graft with the limit groove and is cooperated, joint piece and piece groove sliding fit, joint piece bottom surface outside end is the inclined plane structure, joint piece and joint groove joint cooperation, dial board and board groove sliding fit.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the invention is provided with a liquid medicine box, medical staff can firstly add the medicine to be laid on the wound of a patient into a liquid medicine groove after treating the wound of the patient, the liquid medicine cannot leak out of a liquid leakage hole because the lower part of the liquid leakage hole is blocked by a circular plate, gauze and absorbent cotton are adhered to the lower side of the liquid medicine box by utilizing the adhesive matching of a magic tape female sticker and a magic tape male sticker, finally the liquid medicine box is arranged at the middle position of the bottom surface of a top plate, when the medical staff installs the liquid medicine box along the inserting matching direction of a side plate and a plate groove, the top surface of the side plate can generate extrusion force to the inclined plane of the bottom surface of a clamping block to enable the clamping block to retract into a block groove, then when the clamping groove of the inner wall of the side plate rises to the position corresponding to the block groove, the clamping block can be popped out again under the resilience force of a compression spring and clamped with the clamping groove, thereby realizing the quick installation of the liquid medicine box, the preparation time of dressing has greatly been saved, the infection risk has been reduced, and meanwhile the post of inserting of roof bottom surface can pass the liquid medicine groove and then insert downwards along the weeping hole and move, because the high size design of inserting the post is slightly greater than the size of weeping hole and the high sum of plectane, so when the liquid medicine box installation finishes, insert the post and can push up the plectane and extend the lower part open end of weeping hole, produce a little gap between plectane top surface and the weeping hole bottom surface this moment, the liquid medicine alright slowly flow out from this and be absorbed by gauze and the cotton wool of downside, and slowly permeate its wound surface and play the effect that promotes healing to patient's wound in the time of dressing parcel in patient wound department, and ingenious design, the effectual help that improves this dressing to patient's wound healing speed.

2. The medical dressing is provided with the top plate and the two bottom plates, the end parts of the top plate and the two bottom plates are connected through the two stretching springs A which are symmetrically arranged, after the dressing is prepared, medical staff can open a gap which is enough for a limb of a wound of a patient body to pass through between the bottom plates and the top plate by utilizing the elasticity of the stretching springs A, then the medical staff can move the medical staff to the position of the wound of the patient along the outer side of the body surface of the patient and enable the position of absorbent cotton to correspond to the wound, then the dressing can be firmly bound on the body surface of the patient under the action of the contraction force of the stretching springs A, the top plate and the bottom plate are made of rubber, the shape of the top plate and the bottom plate can be changed according to the body state of the patient, the position of the middle part of the top plate relative to the liquid medicine box is made of plastic, so that the dressing can be suitable for different body appearance characteristics of the patient and can generate good extrusion hemostasis effect on the wound of the patient, a labyrinth type waterproof structure can be formed by close fit between the plastic part of the top plate and the top surface of the liquid medicine box, the dressing can be prevented from seeping out from gaps, after the dressing is selected and the dressing can be clamped into the clamping groove, and the hemostatic effect of hemostasis of the dressing can be further improved in a hemostatic mode of blood can be further improved.

3. According to the invention, the top plate and the bottom plate are respectively provided with the air holes, so that the comfort level of a patient can be improved when the dressing is used, and the inner walls of the positions provided with the air holes are respectively bonded with the non-woven fabrics, so that the injury of bacteria adhered to the dressing in the storage process to the patient can be avoided by replacing the non-woven fabrics, the dressing can be repeatedly used by combining replaceable absorbent cotton and gauze, the waste of the dressing can be effectively reduced, and the cost is reduced.

4. The gauze and the absorbent cotton are bonded in the middle of the bottom surface of the liquid medicine box, the middle of the top surface of the gauze corresponds to the lower opening end of the liquid leakage hole, so that liquid medicine can be absorbed in the gauze through excellent penetrating water absorption of the gauze, the liquid medicine can be conveniently penetrated, the absorbent cotton has lower penetrating water absorption compared with the gauze, but the absorbent cotton has good absorbing and absorbing effects, so that the liquid medicine penetrating through the gauze can be concentrated in the absorbent cotton, the wound of a patient can be fully contacted with the liquid medicine, and the absorption effect of the patient on the liquid medicine is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of the top plate, bottom plate and rubber band of the present invention;

FIG. 3 is a bottom view of the top and bottom plates of the present invention;

FIG. 4 is an exploded view of the cartridge of the present invention;

fig. 5 is a schematic sectional structure view of the liquid medicine cartridge of the present invention.

The reference numbers in the figures illustrate: 1. a top plate; 2. a base plate; 3. an extension spring A; 4. non-woven fabrics; 5. air holes are formed; 6. a baffle plate; 7. a card slot; 8. a rubber band; 9. a liquid medicine box; 10. magic tape female tape; 11. gauze; 12. a groove; 13. a magic tape; 14. absorbent cotton; 15. a liquid medicine tank; 16. a weep hole; 17. an extension spring B; 18. inserting a column; 19. a sideboard; 20. a side groove; 21. a block groove; 22. a clamping block; 23. a clamping groove; 24. pulling a plate; 25. a plate groove; 26. a compression spring; 27. a circular plate.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution:

a biomedical wound dressing comprises a top plate 1, two bottom plates 2 are symmetrically arranged on two sides below the top plate 1, the outer side ends of the bottom plates 2 are connected with the bottom surface of the top plate 1 and the inner side ends of the two bottom plates 2 through two tension springs A3 which are symmetrically and fixedly arranged, non-woven fabrics 4 are respectively bonded on two sides of the inner wall of the top plate 1 and the inner wall of the bottom plate 2, the positions of the inner walls of the top plate 1 and the bottom plate 2 relative to the non-woven fabrics 4 are respectively in a square matrix arrangement structure and are provided with a plurality of air holes 5, two baffles 6 are respectively and fixedly arranged on the middle parts of the outer walls of the top plate 1 and the bottom plate 2 in a symmetrical structure, the inner side walls of the two baffles 6 are in clearance fit to form clamping grooves 7, rubber bands 8 are sleeved on the outer sides of the plurality of clamping grooves 7, a liquid medicine box 9 is arranged in the middle part of the top surface of the top plate 1, two magic tape female tapes 10 are fixedly arranged on two sides of the bottom surface of the liquid medicine box 9, 11, grooves 12 are arranged on two sides of the top surface of the magic tape 10 relative to the magic tape female tapes, the bottom surface of the groove 12 is embedded with a magic sticker 13, the bottom surface of the gauze 11 is fixedly provided with absorbent cotton 14, the middle part of the top surface of the liquid medicine box 9 is penetrated and provided with a liquid medicine groove 15 relative to the middle part of the top surface of the gauze 11, the bottom surface of the liquid medicine groove 15 is provided with a plurality of liquid leakage holes 16 in a square matrix arrangement, the lower side inside the liquid leakage holes 16 is provided with a circular plate 27, two sides of the top surface of the circular plate 27 are symmetrically and fixedly provided with two extension springs B17, the middle part of the bottom surface of the top plate 1 relative to the liquid leakage holes 16 is fixedly provided with an inserting column 18, two sides of the top surface of the liquid medicine box 9 are symmetrically and fixedly provided with two side plates 19, the position of the outer wall of the top plate 1 relative to the side plates 19 is provided with a side groove 20, the middle part of the inner side wall of the side groove 20 is provided with a block groove 21, the outer side end of the block 21 is provided with a clamping block 22, the position of the inner wall of the side plate 19 relative to the clamping block 22 is provided with a shifting plate 24, the top surface of the block groove 21 is provided with a plate groove 25 corresponding to the position of the shifting plate 24, and two compression springs 26 are fixed between the inner side wall of the clamping block 22 and the inner side wall of the block groove 21 in a symmetrical structure.

Specifically, the top plate 1 is of a half-ring structure, the bottom plate 2 is of a quarter-ring structure, both sides of the top plate 1 and the bottom plate 2 are made of rubber, the middle of the top plate 1 is made of plastic, and a gap which is enough for the limbs of the injured part of the patient to pass through can be formed between the bottom plate 2 and the top plate 1 by the elasticity of the extension spring A3.

Further, baffle 6 is the arc structure, and rubber band 8 cooperates with 7 joints of a plurality of draw-in grooves, 8 inner walls of rubber band and

roof

1 and 2 outer wall extrusion fit of bottom plate, and medical personnel can use 8 blocks of rubber band to go into the mode of draw-in groove 7 and tighten roof 1 and bottom plate 2, improve the laminating degree of this dressing and patient's body surface.

Furthermore, gauze 11 is T type structure, and female 10 of magic subsides is pasted with the magic and is pasted the cooperation with the magic, and the height that the concave groove 12 was pasted female 10 of magic is the same to this structure can make things convenient for medical personnel to the change of gauze 11 and

cotton wool

14, and 11 top surfaces of gauze middle part and the inseparable laminating of liquid medicine box 9 bottom surface.

Still further, the middle part of the top surface of the liquid medicine box 9 is of an arc structure with the radian identical to that of the top surface of the inner wall of the top plate 1, the top surface of the liquid medicine box 9 corresponds to the part of the top plate 1 made of plastics, the outer wall of the circular plate 27 is in sliding contact with the lower end of the inner wall of the liquid leakage hole 16, the outer side end of the extension spring B17 is fixedly connected with the inner wall of the liquid leakage hole 16, medical personnel can add medicine to be applied to a wound of a patient into the liquid medicine groove 15 in advance after the wound of the patient is treated, and the liquid medicine cannot leak out of the liquid leakage hole 16 due to the fact that the circular plate 27 is arranged at the lower part of the liquid leakage hole 16.

It is worth introducing that, the diameter of the inserting column 18 is smaller than the diameter of the leakage hole 16, the lower end of the inserting column 18 is a hemisphere structure, the inserting column 18 is inserted and matched with the leakage hole 16, the lower end of the inserting column 18 is in compression fit with the middle part of the top surface of the circular plate 27, the height of the inserting column 18 is larger than that of the leakage hole 16, in the process of installing the liquid medicine box 9, the inserting column 18 on the bottom surface of the top plate 1 penetrates through the liquid medicine groove 15 and then is inserted downwards along the leakage hole 16, because the height of the inserting column 18 is designed to be slightly larger than the sum of the heights of the leakage hole 16 and the circular plate 27, when the liquid medicine box 9 is installed, the inserting column 18 pushes the circular plate 27 to extend out of the lower opening end of the leakage hole 16, a tiny gap is generated between the top surface of the circular plate 27 and the bottom surface of the leakage hole 16, the liquid medicine can slowly flow out and be absorbed by the gauze 11 and the absorbent cotton 14, and the liquid medicine can slowly permeate to the wound surface of the wound of a patient in the time when the dressing is wrapped on the wound of the patient.

It should be noted that the top surface of the side plate 19 is an arc structure with the radian identical to that of the top surface of the top plate 1, the side plate 19 is in inserting fit with the side groove 20, the clamping block 22 is in sliding fit with the block groove 21, the outer side end of the bottom surface of the clamping block 22 is an inclined surface structure, the clamping block 22 is in clamping fit with the clamping groove 23, the shifting plate 24 is in sliding fit with the plate groove 25, when the medical staff installs the liquid medicine box 9 along the inserting fit direction of the side plate 19 and the plate groove 25, the top surface of the side plate 19 generates an extrusion force on the inclined surface of the bottom surface of the clamping block 22 to enable the clamping block to retract into the block groove 21, then when the clamping groove 23 on the inner wall of the side plate 19 rises to a position corresponding to the block groove 21, the clamping block 22 can pop up again under the resilience force of the compression spring 26 and is clamped with the clamping groove 23, so that the quick installation of the liquid medicine box 9 can be realized, the preparation time of dressing is greatly saved, and the infection risk is reduced.

The working principle is as follows: after treating the wound of the patient, the medical staff can add the medicament to be laid on the wound of the patient into the liquid medicament groove 15 in advance, the liquid medicament cannot leak out of the liquid leakage hole 16 because the lower part of the liquid leakage hole 16 is blocked by the circular plate 27, at the moment, the gauze 11 and the absorbent cotton 14 are adhered to the lower side of the liquid medicament box 9 by utilizing the adhesive matching of the magic paste female paste 10 and the magic paste female paste 13, finally, the liquid medicament box 9 is installed at the middle position of the bottom surface of the top plate 1, when the medical staff installs the liquid medicament box 9 along the inserting matching direction of the side plate 19 and the plate groove 25, the top surface of the side plate 19 generates extrusion force on the inclined surface of the bottom surface of the clamping block 22 to enable the clamping block to retract into the block groove 21, then when the clamping groove 23 on the inner wall of the side plate 19 rises to the position corresponding to the block groove 21, the clamping block 22 can be popped out again under the resilience force of the compression spring 26 and clamped with the clamping groove 23, so as to realize the quick installation of the liquid medicament box 9, the preparation time of the dressing is greatly saved, the infection risk is reduced, and meanwhile, the inserting column 18 on the bottom surface of the top plate 1 penetrates through the liquid medicine groove 15 and then is inserted downwards along the liquid leakage hole 16, because the height of the inserting column 18 is designed to be slightly larger than the sum of the heights of the liquid leakage hole 16 and the circular plate 27, when the liquid medicine box 9 is installed, the inserting column 18 pushes the circular plate 27 to extend out of the lower opening end of the liquid leakage hole 16, at the moment, a tiny gap is formed between the top surface of the circular plate 27 and the bottom surface of the liquid leakage hole 16, the liquid medicine can slowly flow out and be absorbed by the gauze 11 and the absorbent cotton 14 on the lower side, and slowly permeate to the wound surface of a patient and has the effect of promoting the healing of the wound of the patient in the time that the dressing is wrapped on the wound of the patient, the design is ingenious, the dressing helps to the wound healing speed of the patient are effectively improved, and medical care personnel can prepare the dressing, the elasticity of usable extension spring A3 opens the space that is enough to patient's health wound limbs and passes between with bottom plate 2 and roof 1, move the position of patient's wound along the patient body surface outside afterwards and make the position of cotton wool 14 correspond with the wound, just can firmly bind this dressing at the patient body surface under the effect of extension spring A3 contractility, roof 1 and bottom plate 2 are made for rubber again, its form also can change according to patient's posture, and roof 1 middle part is made by plastics for the position of liquid medicine box 9, so alright make this dressing can also produce good extrusion hemostasis effect to patient's wound when can adapt to different patient's physiognomy characteristics, can form labyrinth waterproof construction through the inseparable laminating between roof 1 plastics part and the liquid medicine box 9 top surface and prevent that the liquid medicine from oozing by the gap, after waiting to select good position, medical personnel can tighten roof 1 and bottom plate 2 with the mode of draw-in groove 7 into to rubber band 8 card.

The foregoing shows and describes the general principles, principal features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A biomedical wound dressing comprises a top plate (1), and is characterized in that: the two bottom plates (2) are symmetrically arranged on two sides below the top plate (1), the outer side ends of the bottom plates (2) are connected with the bottom surface of the top plate (1) and the inner side ends of the two bottom plates (2) through two tension springs A (3) which are fixedly arranged in a symmetrical structure, non-woven fabrics (4) are respectively bonded on two sides of the inner wall of the top plate (1) and the inner wall of the bottom plate (2), the positions of the inner walls of the top plate (1) and the bottom plate (2) relative to the non-woven fabrics (4) are in a square matrix arrangement structure and are provided with a plurality of air holes (5), two baffles (6) are fixedly arranged in the middle parts of the outer walls of the top plate (1) and the bottom plate (2) in a symmetrical structure, two baffle (6) inside wall clearance fit forms draw-in groove (7), and is a plurality of draw-in groove (7) outside cover is equipped with rubber band (8), roof (1) top surface middle part is equipped with spray box (9), spray box (9) bottom surface both sides set firmly two magic subsides female subsides (10), spray box (9) below is equipped with gauze (11), gauze (11) top surface both sides are seted up flutedly (12) for the position that magic subsides female subsides (10), recess (12) bottom surface is inlayed and is equipped with magic subsides sub-subsides (13), gauze (11) bottom surface has set firmly cotton wool (14), spray box (9) top surface middle part is for the position of gauze (11) top surface middle part A liquid medicine groove (15) is arranged in a penetrating manner, a plurality of liquid leaking holes (16) are formed in the bottom surface of the liquid medicine groove (15) in a square matrix arrangement mode, circular plates (27) are arranged on the lower sides of the inner portions of the liquid leaking holes (16), two extension springs B (17) are symmetrically and fixedly arranged on two sides of the top surface of each circular plate (27), an insert column (18) is fixedly arranged in the middle of the bottom surface of the top plate (1) relative to the positions of the liquid leaking holes (16), two side plates (19) are symmetrically and fixedly arranged on two sides of the top surface of the liquid medicine box (9), an edge groove (20) is formed in the outer wall of the top plate (1) relative to the position of the edge plate (19), a block groove (21) is formed in the middle of the inner side wall of the edge groove (20), a clamping block (22) is arranged on the outer side end of the block groove (21), a clamping block groove (23) is formed in the inner wall of the clamping block (19) relative to the position of the clamping block (22), a shifting plate (24) is fixedly arranged on the top surface of the clamping block groove (22), a clamping block groove (22) is formed in the inner side end, a shifting plate (24) is arranged on the top surface of the block groove (21), the top surface of the block groove (18), the insert column structure is symmetrically and matched with the insert column (16), the insert column (18), the insert column (16) and the insert column (18) and the insert column (16) is smaller than the lower end of the liquid leaking hole, insert post (18) lower extreme and plectane (27) top surface middle part extrusion fit, the height of inserting post (18) is greater than the height of weeping hole (16), sideboard (19) top surface is the arc structure that radian and roof (1) top surface radian are the same, sideboard (19) and limit groove (20) cooperation of pegging graft, joint piece (22) and block groove (21) sliding fit, joint piece (22) bottom surface outside end is the inclined plane structure, joint piece (22) and joint groove (23) joint cooperation, dial board (24) and board groove (25) sliding fit.

2. A biomedical wound dressing according to claim 1, wherein: the novel plastic roof is characterized in that the top plate (1) is of a half circular ring structure, the bottom plate (2) is of a quarter circular ring structure, the two sides of the top plate (1) and the bottom plate (2) are made of rubber, and the middle of the top plate (1) is made of plastic.

3. A biomedical wound dressing according to claim 1, wherein: baffle (6) are the arc structure, rubber band (8) and a plurality of draw-in groove (7) joint cooperation, rubber band (8) inner wall and roof (1) and bottom plate (2) outer wall extrusion fit.

4. A biomedical wound dressing according to claim 1, wherein: gauze (11) are T type structure, female subsides (10) of magic subsides with the magic subsides sub-cooperation of bonding (13), the height of recess (12) is the same with the height that female subsides (10) of magic subsides, gauze (11) top surface middle part is closely laminated with liquid medicine box (9) bottom surface.

5. A biomedical wound dressing according to claim 1, wherein: the top surface middle part of the liquid medicine box (9) is of an arc structure with the radian identical to that of the top surface of the inner wall of the top plate (1), the outer wall of the circular plate (27) is in sliding contact with the lower end of the inner wall of the liquid leakage hole (16), and the outer side end of the extension spring B (17) is fixedly connected with the inner wall of the liquid leakage hole (16).