Negative pressure wound drainage device

By designing a combination of connecting tubes, mounting tubes, fan-shaped plates, and locking blocks, the problem of difficult cleaning and disinfection of negative pressure wound drainage device components is solved, achieving stable connection and convenient separation of components. Combined with the structure of negative pressure cover, straps, fixing shell, and rollers, the problem of difficult adjustment of strap length is solved, achieving convenient cleaning and disinfection as well as personalized fixation.

CN223874187UActive Publication Date: 2026-02-06ZHONGSHAN HOSPITAL XIAMEN UNIV
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520248502.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-02-06
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing negative pressure wound drainage devices are difficult to clean, disinfect, or replace parts easily, and the length of the bandage is difficult to adjust flexibly to achieve the best fixation effect.

Method used

A negative pressure wound drainage device was designed. Through the combination of connecting tubes, mounting tubes, fan-shaped plates and locking blocks, the components are stably connected and easily separated. The structure of negative pressure cover, straps, fixing shell and rollers allows for flexible adjustment of the strap length.

Benefits of technology

It enables convenient cleaning and disinfection of components, prevents cross-infection, and allows for adjustment of the bandage length according to the patient's wound location to achieve the best fixation effect and meet personalized needs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223874187U_ABST
    Figure CN223874187U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of medical instruments, and discloses a negative pressure wound drainage device which comprises a drainage bottle, a containing assembly is installed on the surface of the drainage bottle, and a sealing cover is arranged at an opening of the drainage bottle. According to the negative pressure wound drainage device, through the arrangement of the connecting pipe, the mounting pipe, the sector plate, the clamping block and the first spring, when the negative pressure wound drainage device is used, a fixing pipe is held firstly, the sector plate is aligned with a sector groove of the connecting pipe to be inserted, after the mounting pipe is completely inserted, the fixing pipe is rotated to drive the sector plate to rotate through the mounting pipe, and the sector plate rotates along with rotation of the sector plate; when a fan-shaped plate rotates to a specific angle, the edge of the fan-shaped plate gradually pushes a clamping block, the clamping block moves towards the interior of a circular groove, a first spring is compressed in the process, when the fan-shaped plate rotates to the specific angle, the clamping block is aligned with a spherical groove in the fan-shaped plate, and at the moment, the first spring releases elastic potential energy to push the clamping block to be clamped into the spherical groove; therefore, the stable connection between the mounting pipe and the connecting pipe is realized.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a negative pressure wound drainage device. BACKGROUND

[0002] In the emergency ward, the patient's condition is often critical and complex, and wound treatment is a common and key treatment link. The traditional wound drainage method has many drawbacks, such as insufficient drainage leading to slow wound healing and increased risk of infection, improper fixation method easily causing patient discomfort and displacement of the drainage device, and complicated operation consuming a lot of time and energy of medical staff. With the development of medical technology, there is an increasing demand for efficient, convenient and safe wound drainage equipment. A new type of negative pressure wound drainage device has emerged, which innovatively designs the connection structure, fixation method and storage assembly, aiming to solve the shortcomings of the traditional drainage method and improve the efficiency and quality of wound treatment in the emergency ward, providing better treatment conditions for patients.

[0003] However, the existing negative pressure wound drainage device has the following disadvantages:

[0004] (1) The existing negative pressure wound drainage device is usually integrated, making it difficult to easily clean, disinfect or replace the drainage tube, negative pressure cover and other components, and the device is prone to cross infection;

[0005] (2) The existing negative pressure wound drainage device makes it difficult for medical staff to flexibly adjust the length of the bandage according to the different positions of the patient's wound and body parts to achieve the best fixation effect.

[0006] Therefore, the utility model provides a negative pressure wound drainage device. UTILITY MODEL CONTENT

[0007] (I) Technical problem solved

[0008] The technical problem solved by the utility model is to provide a negative pressure wound drainage device with high practicality and simple structure, which can be easily cleaned, disinfected or replaced by simple operation, and the length of the bandage can be flexibly adjusted according to the different positions of the patient's wound and body parts to achieve the best fixation effect.

[0009] (II) Technical scheme

[0010] To achieve the above object, the utility model discloses the following technical scheme to realize: a negative pressure wound drainage device, including the drainage bottle, the surface of drainage bottle is installed and receives subassembly, the opening of drainage bottle is provided with sealing cover, the top of sealing cover is provided with two round holes, the inner side wall of two round holes is all fixedly connected with L type pipe, one end of one L type pipe is installed with suction pump, another L type pipe is installed with connecting pipe, the inner side wall of connecting pipe is provided with installation pipe, the surface of installation pipe is fixedly connected with sector plate, one side of connecting pipe is provided with sector slot, the inner side wall of sector slot is provided with round groove, the inner side wall of round groove is movably connected with the clamping block, the first spring is connected between the inner side wall of round groove and one side of clamping block, one side of sector plate is provided with the ball type slot that is matched with clamping block, the clamping block is clamped in the ball type slot, one end of installation pipe is installed with fixed pipe, one end of fixed pipe is provided with drainage tube, one end of drainage tube is installed with negative pressure cover, one side of negative pressure cover is fixedly connected with bandage, the other side of negative pressure cover is installed with fixed shell, one side of fixed shell is provided with the rectangular hole that is matched with bandage, the inner side wall of fixed shell is rotatably connected with the cylinder, the surface of cylinder is provided with the antiskid tooth, the surface of antiskid tooth is in contact with bandage, the inner side wall of fixed shell is movably connected with movable block, the bottom of movable block is provided with the tooth slot that is matched with antiskid tooth, the second spring is connected between the inner top wall of fixed shell and the top of movable block, the top of movable block is installed with pull rod.

[0011] Optionally, the surface of the clamping block is fixedly connected with a limiting block, the inner side wall of the round groove is provided with a limiting groove matched with the limiting block, and the limiting block is movably connected in the limiting groove. The limiting block can ensure the movement of the clamping block in a specific space.

[0012] Optionally, the top of the pull rod is fixedly connected with a mounting block, and one side of the mounting block is rotatably connected with a pull ring. The pull ring can facilitate medical staff to pull the pull rod.

[0013] Optionally, the inner side wall of the negative pressure cover is fixedly connected with a soft pad, and the material of the soft pad is medical silica gel. The soft pad can improve the comfort of the patient.

[0014] Optionally, the opening of the drainage bottle is provided with a sealing ring, and the bottom of the sealing cover is provided with a mounting groove matched with the sealing ring. The sealing ring can ensure the sealing property of the device.

[0015] Optionally, the surface of the fixed pipe is sleeved with a soft sleeve, and the surface of the soft sleeve is provided with anti-skid lines. The soft sleeve can improve the stability of the medical staff holding.

[0016] (Three) beneficial effects

[0017] The utility model provides a kind of negative pressure wound drainage device, with the following beneficial effects:

[0018] 1、The negative pressure wound drainage device, by the setting of connecting pipe, installation pipe, sector plate, clamping block and first spring, when using, first hold fixed pipe and insert sector plate into the sector slot of connecting pipe, when installation pipe is completely inserted, rotate fixed pipe, make it drive sector plate to rotate, with the rotation of sector plate, its edge will gradually push clamping block, make clamping block move to the inside of circular groove, first spring is compressed in this process, when sector plate rotates to specific angle, the position of clamping block is aligned with the ball-shaped slot on sector plate, first spring releases elastic potential energy at this time, push clamping block and enter ball-shaped slot, to realize the stable connection of installation pipe and connecting pipe, reverse rotation fixed pipe, can separate installation pipe and connecting pipe, it is convenient to clean, disinfect or replace drainage tube, negative pressure cover and other components, also be conducive to preventing cross infection.

[0019] 2、The negative pressure wound drainage device, by the setting of negative pressure cover, bandage, fixed shell, cylinder, movable block, second spring and pull rod, after placing negative pressure cover at wound site, pull bandage through the rectangular hole of fixed shell, at this time, the anti-skid tooth of cylinder is contacted with bandage, when bandage moves, cylinder is rotated, in normal state, second spring is in natural extension state, push movable block downward, make the tooth groove of movable block and the anti-skid tooth of cylinder closely engage, this engagement relationship restricts the reverse rotation of cylinder, to fix bandage, and then tightly fix negative pressure cover at wound, medical staff can flexibly adjust the length of bandage according to the different of patient wound position, body part, to achieve the best fixing effect, satisfy the individualized needs of different patients. DRAWINGS

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the connecting pipe structure schematic diagram of the utility model;

[0022] Figure 3 It is the connecting pipe cross section structure schematic diagram of the utility model;

[0023] Figure 4 It is the fixed shell cross section structure schematic diagram of the utility model;

[0024] Figure 5 It is the structure schematic diagram of the utility model embodiment one;

[0025] Figure 6 It is the structure schematic diagram of the utility model embodiment two.

[0026] In the figure: 1, drainage bottle; 2, storage assembly; 201, mounting seat; 202, winding rod; 203, baffle; 3, sealing cover; 4, L-shaped tube; 5, connecting tube; 6, mounting tube; 7, fan-shaped plate; 8, clamping block; 9, first spring; 10, fixed tube; 11, drainage tube; 12, negative pressure cover; 13, bandage; 14, fixed shell; 15, roller; 16, movable block; 17, second spring; 18, pull rod; 19, air suction pump; 20, limiting block; 21, pull ring; 22, soft pad; 23, sealing ring; 24, soft sleeve. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1 to 4The utility model provides a technical scheme: a negative pressure wound drainage device, including drainage bottle 1, the surface of drainage bottle 1 is installed and receives subassembly 2, the opening of drainage bottle 1 is provided with seal cover 3, the top of seal cover 3 is equipped with two round holes, the inner side wall of two round holes is all fixedly connected with L type pipe 4, one end of one L type pipe 4 is installed with suction pump 19, another L type pipe 4 is installed with connecting pipe 5, the inner side wall of connecting pipe 5 is provided with installation pipe 6, the surface of installation pipe 6 is fixedly connected with sector plate 7, one side of connecting pipe 5 is equipped with sector slot, the inner side wall of sector slot is equipped with round groove, the inner side wall of round groove is movably connected with clamping block 8, one side of clamping block 8 and the inner side wall of round groove are jointly connected with first spring 9, one side of sector plate 7 is equipped with the ball type slot of being matched with clamping block 8, clamping block 8 is clamped in the inside of ball type slot, through the setting of connecting pipe 5, installation pipe 6, sector plate 7, clamping block 8 and first spring 9, when using, first hold fixed pipe 10 and insert sector plate 7 in the sector slot of connecting pipe 5 in alignment, when installation pipe 6 is completely inserted, rotate fixed pipe 10, make it drive sector plate 7 to rotate through installation pipe 6, along with the rotation of sector plate 7, its edge will gradually push clamping block 8, make clamping block 8 move to the inside of round groove, first spring 9 is compressed in this process, when sector plate 7 rotates to specific angle, the position of clamping block 8 and the ball type slot on sector plate 7 are aligned, when first spring 9 releases elastic potential energy, pushes clamping block 8 and enters ball type slot, thereby realizes the stable connection of installation pipe 6 and connecting pipe 5, reverse rotation fixed pipe 10, can separate installation pipe 6 and connecting pipe 5, it is convenient to wash, disinfect or replace drainage tube 11, negative pressure cover 12 and other components, also be favorable for preventing cross infection, one end of installation pipe 6 is installed with fixed pipe 10, one end of fixed pipe 10 is provided with drainage tube 11, one end of drainage tube 11 is installed with negative pressure cover 12, one side of negative pressure cover 12 is fixedly connected with bandage 13, the other side of negative pressure cover 12 is installed with fixed shell 14, one side of fixed shell 14 is equipped with the rectangular hole of being matched with bandage 13, the inner side wall of fixed shell 14 is rotatably connected with roller 15, the surface of roller 15 is provided with anti -skid tooth, anti -skid tooth and the surface of bandage 13 are contacted, the inner side wall of fixed shell 14 is movably connected with movable block 16, the bottom of movable block 16 is equipped with the tooth slot of being matched with anti -skid tooth, the top of movable block 16 and the inner top wall of fixed shell 14 are jointly connected with second spring 17, the top of movable block 16 is installed with pull rod 18, through the setting of negative pressure cover 12, bandage 13, fixed shell 14, roller 15, movable block 16, second spring 17 and pull rod 18, after placing negative pressure cover 12 at the wound site, pull bandage 13 through the rectangular hole of fixed shell 14, when the anti -skid tooth of roller 15 and bandage 13 contact, when bandage 13 moves, will drive roller 15 to rotate, under normal conditions, second spring 17 is in natural extension state, pushes movable block 16 downwards, makes the tooth slot of movable block 16 and the anti -skid tooth of roller 15 closely engage, this engagement relation limits the reverse rotation of roller 15,Thus the bandage 13 is fixed, and the negative pressure cover 12 is tightly fixed at the wound, medical staff can flexibly adjust the length of the bandage 13 according to the different positions of the wound of the patient, so as to achieve the best fixing effect and meet the individual needs of different patients.

[0029] The surface of the clamping block 8 is fixedly connected with a limiting block 20, the limiting block 20 can ensure that the clamping block 8 moves in a specific space through the setting of the limiting block 20, and the inner side wall of the circular groove is provided with a limiting groove matched with the limiting block 20, and the limiting block 20 is movably connected in the limiting groove.

[0030] The top of the pull rod 18 is fixedly connected with a mounting block, one side of the mounting block is rotatably connected with a pull ring 21, and the pull ring 21 can be pulled by medical staff through the setting of the pull ring 21.

[0031] The inner side wall of the negative pressure cover 12 is fixedly connected with a soft pad 22, and the soft pad 22 can improve the comfort of the patient through the setting of the soft pad 22, and the material of the soft pad 22 is medical silica gel.

[0032] The opening of the drainage bottle 1 is provided with a sealing ring 23, and the sealing ring 23 can guarantee the sealing property of the device through the setting of the sealing ring 23, and the bottom of the sealing cover 3 is provided with a mounting groove matched with the sealing ring 23.

[0033] The surface of the fixed tube 10 is sleeved with a soft sleeve 24, and the soft sleeve 24 can improve the stability of the medical staff holding through the setting of the soft sleeve 24, and the surface of the soft sleeve 24 is provided with anti-skid lines.

[0034] In the utility model, the working steps of the device are as follows:

[0035] The first step is that first hold the fixed tube 10 and insert the fan-shaped plate 7 into the fan-shaped groove of the connecting pipe 5, when the mounting pipe 6 is completely inserted, rotate the fixed tube 10, so that the fan-shaped plate 7 is driven to rotate by the mounting pipe 6, along with the rotation of the fan-shaped plate 7, the edge thereof gradually pushes the clamping block 8, so that the clamping block 8 moves to the inside of the circular groove, in this process, the first spring 9 is compressed, when the fan-shaped plate 7 is rotated to a specific angle, the position of the clamping block 8 is aligned with the spherical groove on the fan-shaped plate 7, at this moment, the first spring 9 releases the elastic potential energy and pushes the clamping block 8 to be clamped into the spherical groove, so that the stable connection of the mounting pipe 6 and the connecting pipe 5 is realized, reversely rotating the fixed tube 10 can separate the mounting pipe 6 and the connecting pipe 5, which is convenient for cleaning, disinfecting or replacing the drainage tube 11, the negative pressure cover 12 and other components, and is also beneficial to prevent cross infection.

[0036] Second step: after placing the negative pressure cover 12 at the wound site, pull the bandage 13 through the rectangular hole of the fixing shell 14, at this time the anti-skid teeth of the roller 15 are in contact with the bandage 13, when the bandage 13 moves, the roller 15 is driven to rotate, in the normal state, the second spring 17 is in the natural stretching state, pushes the movable block 16 downward, so that the tooth groove of the movable block 16 is closely engaged with the anti-skid teeth of the roller 15, the engagement relationship limits the reverse rotation of the roller 15, thereby fixing the bandage 13, and further tightly fixing the negative pressure cover 12 at the wound, medical staff can flexibly adjust the length of the bandage 13 according to the different positions of the wound and body parts of patients, so as to achieve the best fixing effect and meet the individual needs of different patients.

[0037] Embodiment one

[0038] Please refer to Figure 5 The drainage bottle 1 is fixedly connected with the mounting seat 201 on one side, the mounting seat 201 is fixedly connected with two winding rods 202 on one side, and the winding rods 202 are fixedly connected with the baffles 203 on one end. Through the setting of the mounting seat 201, the winding rods 202 and the baffles 203, the drainage tube 11 after use can be neatly wound on the winding rods 202, and the surrounding environment is more clean.

[0039] Embodiment two

[0040] Please refer to Figure 6 The drainage bottle 1 is fixedly connected with the mounting seat 201 on one side, the mounting seat 201 is fixedly connected with two winding rods 202 on one side, and the winding rods 202 are fixedly connected with the baffles 203 on one end. Through the setting of the mounting seat 201, the winding rods 202 and the baffles 203, the drainage tube 11 after use can be neatly wound on the winding rods 202, and the surrounding environment is more clean.

[0041] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the technical principle of the design, but under the premise that the technical personnel in the field understand the principle of the above-mentioned utility model, the specific of the power mechanism, the power supply system and the control system can be clearly known, and the control mode of the application file is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming of the technical personnel in the field;

[0042] The standard parts used can be purchased from the market, and can be customized according to the description and drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional type in the prior art, and the components known by the technical personnel in the field are known or obtained through conventional experimental methods.

[0043] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A negative pressure wound drain comprising a drain bottle (1), characterised in that: The surface of the drainage bottle (1) is provided with a receiving assembly (2), the opening of the drainage bottle (1) is provided with a sealing cover (3), the top of the sealing cover (3) is provided with two round holes, the inner side walls of the two round holes are fixedly connected with L-shaped pipes (4), one end of one of the L-shaped pipes (4) is provided with an air pump (19), the other L-shaped pipe (4) is provided with a connecting pipe (5), the inner side wall of the connecting pipe (5) is provided with a mounting pipe (6), the surface of the mounting pipe (6) is fixedly connected with a fan-shaped plate (7), one side of the connecting pipe (5) is provided with a fan-shaped groove, the inner side wall of the fan-shaped groove is provided with a circular groove, the inner side wall of the circular groove is movably connected with a clamping block (8), the clamping block (8) and the inner side wall of the circular groove are connected with a first spring (9), one side of the fan-shaped plate (7) is provided with a spherical groove matched with the clamping block (8), the clamping block (8) is clamped in the spherical groove, one end of the mounting pipe (6) is provided with a fixing pipe (10), one end of the fixing pipe (10) is provided with a drainage tube (11), one end of the drainage tube (11) is provided with a negative pressure cover (12), one side of the negative pressure cover (12) is fixedly connected with a bandage (13), the other side of the negative pressure cover (12) is provided with a fixing shell (14), one side of the fixing shell (14) is provided with a rectangular hole matched with the bandage (13), the inner side wall of the fixing shell (14) is rotatably connected with a roller (15), the surface of the roller (15) is provided with anti-skid teeth, the anti-skid teeth are in contact with the surface of the bandage (13), the inner side wall of the fixing shell (14) is movably connected with a movable block (16), the bottom of the movable block (16) is provided with a tooth groove matched with the anti-skid teeth, the top of the movable block (16) and the inner top wall of the fixing shell (14) are connected with a second spring (17), the top of the movable block (16) is provided with a pull rod (18).

2. A negative pressure wound drain according to claim 1, characterised in that: The surface of the clamping block (8) is fixedly connected with a limiting block (20), the inner side wall of the circular groove is provided with a limiting groove matched with the limiting block (20), and the limiting block (20) is movably connected in the limiting groove.

3. The negative pressure wound irrigator of claim 1, wherein: The top of the pull rod (18) is fixedly connected with a mounting block, and one side of the mounting block is rotatably connected with a pull ring (21).

4. The negative pressure wound irrigator of claim 1, wherein: The inner side wall of the negative pressure cover (12) is fixedly connected with a soft pad (22), and the material of the soft pad (22) is medical silica gel material.

5. The negative pressure wound irrigator of claim 1, wherein: The opening of the drainage bottle (1) is provided with a sealing ring (23), and the bottom of the sealing cover (3) is provided with a mounting groove matched with the sealing ring (23).

6. The negative pressure wound irrigator of claim 1, wherein: The surface of the fixing pipe (10) is sleeved with a soft sleeve (24), and the surface of the soft sleeve (24) is provided with anti-skid lines.