Simple wound surface dyeing device

Abstract

The utility model discloses a simple wound surface dyeing device which comprises a methylene blue storage barrel, a piston rod is movably arranged in the methylene blue storage barrel, a piston pad is arranged at one end of the piston rod, a rod handle is arranged at the other end of the piston rod, and a nipple part is arranged at the end of the methylene blue storage barrel. A coating structure for absorbing a methylene blue solution is detachably arranged on the nipple part; a locking structure used for positioning the pushing position of the piston rod is further arranged on the methylene blue storage barrel, the wound surface of a patient is coated through the coating structure, methylene blue can be metabolized into colorless methylene blue through a living tissue area, an inactive area is kept blue, then blue inactivated tissue is removed through an operation, the debridement efficiency is improved, and the application range is wide. The device is simple in structure, convenient to operate, capable of reducing operation related complications and accelerating wound repair, can position the moving position of the piston rod, can prevent the situation that the methylene blue solution overflows due to the fact that the piston rod does not touch, and can control the dosage of the methylene blue solution according to needs.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a simple wound staining device. Background Technology

[0002] Wounds can be classified into acute and chronic wounds. Acute wounds typically refer to all wounds created within the first two weeks of their formation. Common types of acute wounds include surgical incisions, skin abrasions, burns, and donor sites. Chronic wounds occur when adverse factors such as infection or foreign bodies impede the healing process, causing it to partially or completely cease, resulting in a healing time exceeding two weeks. Common chronic wounds include pressure ulcers, lower extremity vascular ulcers (arterial / venous), and diabetic foot ulcers. Pressure ulcers, infected sinuses, and diabetic foot ulcers, in particular, are often heavily contaminated, with multiple bacteria attaching and forming stubborn bacterial biofilms, leading to multidrug resistance and posing a significant challenge to wound treatment.

[0003] In routine wound treatment, without the aid of specialized equipment such as indocyanine green angiography or infrared thermography, it is impossible to accurately mark the inactive and viable tissues in the wound. This can easily lead to insufficient or excessive wound cleaning. Incomplete cleaning can result in failed repair surgery, while excessive cleaning can cause unnecessary tissue damage and bleeding. Both of these can lead to prolonged illness, higher costs, and increased risk of deformities and disabilities, placing a heavy economic burden on patients, their families, and society, and reducing the efficiency of wound cleaning. To address this, we propose a simple wound staining device. Utility Model Content

[0004] The purpose of this invention is to provide a simple wound staining device to solve the problems mentioned in the background art, such as the inability to accurately mark the inactive and active tissues in the wound during wound treatment, which easily leads to insufficient or excessive wound cleaning. Incomplete cleaning can cause repair surgery failure, while excessive cleaning can cause unnecessary tissue damage and bleeding, resulting in a longer course of disease, higher costs, and a higher risk of disability, which imposes a heavy economic burden on patients, families, and society, and reduces the efficiency of wound cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a simple wound staining device, comprising a methylene blue storage cylinder, a piston rod movably disposed inside the methylene blue storage cylinder, a piston pad disposed at one end of the piston rod, a handle disposed at the other end of the piston rod, a nipple disposed at the end of the methylene blue storage cylinder, and a coating structure detachably disposed on the nipple for absorbing the methylene blue solution;

[0006] The methylene blue storage tank is also equipped with a locking structure for positioning the piston rod's pushing position.

[0007] Preferably, the coating structure includes a supporting vertebra, on which a needle plug is disposed. The needle plug is detachably connected to the nipple head, allowing the supporting vertebra to be disassembled and replaced easily, thus saving usage costs. A conical sponge pad is disposed at the bottom of the supporting vertebra, which can absorb methylene blue solution and coat the wound surface.

[0008] Preferably, a guide tube is provided at the bottom of the needle plug, the guide tube passes through the supporting cone and fits against the conical sponge pad, which can concentrate and deliver the methylene blue solution into the conical sponge pad.

[0009] Preferably, the locking structure includes a support sleeve, which is disposed on the methylene blue storage cylinder, and the piston rod is movably disposed within the support sleeve, enabling the piston rod to be moved and guided.

[0010] Preferably, a positioning plate is provided on the support sleeve, and the positioning plate is connected to the support sleeve through a flexible connecting part. A positioning buckle is provided on the other side of the positioning plate, and the positioning buckle is engaged with the positioning groove. The positioning groove is evenly arranged longitudinally on the piston rod, which can position the piston rod to prevent the piston rod from accidentally hitting it and causing the methylene blue solution to overflow, and to control the amount of methylene blue solution used.

[0011] Preferably, the end of the positioning plate is further provided with a snap-fit ​​part, which is disposed in a snap-fit ​​groove, and the snap-fit ​​groove is disposed on one side of the outer surface of the support sleeve, so as to position the installation of the positioning plate.

[0012] Preferably, an elastic buckle is provided on one side surface of the snap-fit ​​groove, and one end of the elastic buckle is snapped into the arc-shaped snap-fit ​​groove. The arc-shaped snap-fit ​​groove is provided on one side surface of the snap-fit ​​part, which can fix the snap-fit ​​part.

[0013] Preferably, an adjustment buckle is provided on one side surface of the positioning plate to facilitate the movement of the positioning plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) This invention can deliver methylene blue solution to the coating structure, and then coat the patient's wound through the coating structure. The living tissue area will metabolize the methylene blue into colorless methylene blue, while the non-active area will remain blue. Subsequently, the blue inactive tissue is removed by surgery, which improves the debridement efficiency and reduces surgical complications.

[0016] (2) This utility model can position the piston rod, prevent the piston rod from accidentally causing the methylene blue solution to overflow, and control the amount of methylene blue solution used. Attached Figure Description

[0017] Figure 1It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the left half-section structure of this utility model;

[0019] Figure 3 This is a half-sectional schematic diagram of the coating structure in this utility model;

[0020] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 5 for Figure 4 Enlarged structural diagram at point C;

[0022] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0023] Figure 7 This is a schematic diagram of the structure of the positioning buckle and the positioning groove in the separated state in this utility model;

[0024] In the diagram: 1. Coated structure; 2. Methylene blue storage tank; 3. Locking structure; 4. Rod handle; 5. Piston rod; 6. Scale markings; 7. Piston pad; 11. Conical sponge pad; 12. Support cone; 13. Needle plug; 14. Nipple head; 15. Guide tube; 31. Support sleeve; 32. Flexible connection part; 33. Positioning plate; 34. Adjusting buckle; 35. Positioning groove; 36. Snap-fit ​​groove; 37. Elastic buckle; 38. Arc-shaped snap-fit ​​groove; 39. Snap-fit ​​part; 40. Positioning buckle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figure 1-Figure 3This utility model provides a technical solution: a simple wound staining device, including a methylene blue storage cylinder 2, a piston rod 5 movably disposed inside the methylene blue storage cylinder 2, a piston pad 7 disposed at one end of the piston rod 5, and a handle 4 disposed at the other end of the piston rod 5. A nipple 14 is disposed at the end of the methylene blue storage cylinder 2, and a coating structure 1 for absorbing methylene blue solution is detachably disposed on the nipple 14. The coating structure 1 includes a supporting cone 12, on which a needle plug 13 is disposed. The needle plug 13 is detachably connected to the nipple 14, enabling the absorption of methylene blue solution. The vertebral support 12 is easy to disassemble and replace. A conical sponge pad 11 is provided at the bottom of the vertebral support 12 to absorb methylene blue solution and apply it to the wound. A drainage tube 15 is provided at the bottom of the needle plug 13. The drainage tube 15 passes through the vertebral support 12 and fits into the conical sponge pad 11, which can concentrate the methylene blue solution into the conical sponge pad 11. Specifically, the vertebral support 12 is made of non-absorbent plastic material, which is easy for medical staff to hold, and their hands will not be contaminated with methylene blue solution during the holding process.

[0028] In this application, multiple sets of coating structures 1 can be used. When cleaning the wound, the locking structure 3 releases the positioning of the piston rod 5, connects the needle plug 13 to the nipple head 14, and pushes the handle 4. The handle 4 drives the piston rod 5 to move, and the piston rod 5 moves the piston pad 7 within the methylene blue reservoir 2. The methylene blue solution in the methylene blue reservoir 2 is then delivered to the guide tube 15 through the nipple head 14. The guide tube 15 delivers the methylene blue solution to the conical sponge pad 11, which absorbs the methylene blue solution. The methylene blue solution is then applied to the entire wound surface through the conical sponge pad 11. The living tissue area will metabolize the methylene blue into colorless methylene blue, while the inactive area will remain blue. Subsequently, the blue inactive tissue is surgically removed. This allows for rapid marking of living and non-living tissue, avoiding insufficient or excessive wound cleaning and improving wound cleaning efficiency.

[0029] Furthermore, graduation marks 6 are provided on the outer surface of the methylene blue storage tank 2 to facilitate the quantitative output of methylene blue solution.

[0030] Example 2

[0031] Please see Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7The methylene blue storage tank 2 is also equipped with a locking structure 3, which includes a support sleeve 31. The support sleeve 31 is set on the methylene blue storage tank 2, and the piston rod 5 is movably set in the support sleeve 31, which can guide the movement of the piston rod 5. A positioning plate 33 is set on the support sleeve 31, and the positioning plate 33 is connected to the support sleeve 31 through a flexible connecting part 32. A positioning buckle 40 is set on the other side of the positioning plate 33, and the positioning buckle 40 is engaged with the positioning groove 35. The positioning groove 35 is evenly arranged longitudinally on the piston rod 5, which can position the piston rod 5 and prevent the piston rod 5 from accidentally hitting it, causing the methylene blue solution to overflow.

[0032] Before use, the positioning plate 33 can be pushed, and the positioning plate 33 rotates through the flexible connecting part 32. The rotation of the positioning plate 33 drives the positioning buckle 40 to move and lock the positioning buckle 40 into the corresponding positioning groove 35. The positioning buckle 40 can position the piston rod 5, avoiding the situation where the piston rod 5 is accidentally touched and the methylene blue solution overflows before use.

[0033] During use, the positioning plate 33 will cause the positioning buckle 40 to separate from the positioning groove 35, and push the piston rod 5. The piston rod 5 will cause the piston pad 7 to move. When the piston rod 5 moves to the methylene blue solution output position, it will push the positioning plate 33, and the positioning plate 33 will cause the positioning buckle 40 to move and lock the positioning buckle 40 into the corresponding positioning groove 35, and position the piston rod 5.

[0034] Furthermore, the end of the positioning plate 33 is also provided with a snap-fit ​​part 39, which is located in a snap-fit ​​groove 36. The snap-fit ​​groove 36 is located on one side of the outer surface of the support sleeve 31, which can position the installation of the positioning plate 33. An elastic buckle 37 is provided on one side surface of the snap-fit ​​groove 36. One end of the elastic buckle 37 is snapped into an arc-shaped groove 38, which is located on one side surface of the snap-fit ​​part 39. When the piston rod 5 is positioned, the snap-fit ​​part 39 snaps into the snap-fit ​​groove 36, and at the same time, the snap-fit ​​part 39 compresses the elastic buckle 37. When the snap-fit ​​part 39 is fully inserted into the snap-fit ​​groove 36, the elastic buckle 37 snaps into the arc-shaped groove 38, which can fix the snap-fit ​​part 39.

[0035] Furthermore, an adjustment buckle 34 is provided on one side surface of the positioning plate 33 to facilitate the movement of the positioning plate 33.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple wound staining device, characterized in that: The device includes a methylene blue storage tank (2), a piston rod (5) is movably disposed inside the methylene blue storage tank (2), a piston pad (7) is disposed at one end of the piston rod (5), a handle (4) is disposed at the other end of the piston rod (5), a nipple head (14) is disposed at the end of the methylene blue storage tank (2), and a coating structure (1) for absorbing methylene blue solution is detachably disposed on the nipple head (14); The methylene blue storage tank (2) is also provided with a locking structure (3) for positioning the pushing position of the piston rod (5).

2. The simple wound staining device according to claim 1, characterized in that: The coating structure (1) includes a supporting vertebra (12), on which a needle plug (13) is provided. The needle plug (13) is detachably connected to the nipple head (14). A conical sponge pad (11) is provided at the bottom of the supporting vertebra (12).

3. The simple wound staining device according to claim 2, characterized in that: The needle plug (13) is provided with a guide tube (15) at the bottom, which passes through the supporting vertebra (12) and fits against the conical sponge pad (11).

4. The simple wound staining device according to claim 1, characterized in that: The locking structure (3) includes a support sleeve (31), which is disposed on the methylene blue storage cylinder (2), and the piston rod (5) is movably disposed inside the support sleeve (31).

5. A simple wound staining device according to claim 4, characterized in that: A positioning plate (33) is provided on the support sleeve (31). The positioning plate (33) is connected to the support sleeve (31) through a flexible connecting part (32). A positioning buckle (40) is provided on the other side of the positioning plate (33). The positioning buckle (40) is engaged with the positioning groove (35). The positioning groove (35) is evenly arranged longitudinally on the piston rod (5).

6. A simple wound staining device according to claim 5, characterized in that: The positioning plate (33) is also provided with a snap-fit ​​part (39) at its end. The snap-fit ​​part (39) is located in the snap-fit ​​groove (36), which is located on one side of the outer surface of the support sleeve (31).

7. A simple wound staining device according to claim 6, characterized in that: An elastic buckle (37) is provided on one side surface of the snap-fit ​​groove (36), and one end of the elastic buckle (37) is snapped into the arc-shaped snap-fit ​​groove (38), which is provided on one side surface of the snap-fit ​​part (39).

8. A simple wound staining device according to any one of claims 5-7, characterized in that: An adjustment buckle (34) is provided on one side surface of the positioning plate (33).

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