Negative pressure dressing plasterTechnical Field
The application relates to the field of medical appliances, in particular to a negative pressure dressing patch.
Background
The negative pressure closed drainage technology (vacuum sealing drainage, VSD for short) is initiated by Wim Fleischman doctor of the university of ULM in Germany in 1992, and forms a theoretical prototype for drainage of limb wound surfaces; in 1994, china Qiu Huade teaches that the negative pressure closed drainage technology is applied to general surgery for the first time, the precedent of the application of the negative pressure closed drainage technology in general surgery is initiated, and Wang Yanfeng and Qiu Huade teach that the first patent of the negative pressure closed drainage technology is granted in China in 1997.
The prior VSD technology basically comprises a negative pressure source (comprising a medical suction machine, a central negative pressure device or a negative pressure drainage bottle used in a hospital, and the like), a drainage tube, a hydrophilic foam material or other medical hydrophobic foam materials or sponge dressing or gauze dressing (hereinafter, the medical materials are collectively called as porous foam materials), an attachable sealing film and a drainage container. The negative pressure source is connected for drainage, so that the liquefied substances such as blood seepage, liquid seepage, liquefied necrotic tissue fragments and pus in the human tissues can be drained into the drainage container. The technology can directly discharge necrotic tissues, toxins, pus and the like out of the body, avoid reabsorption of the toxins and quickly clean the wound surface; meanwhile, the high negative pressure suction can effectively promote rapid growth of granulation and shorten the wound healing time. By using the technology, patients can not need to change the medicine within 3-7 days, so that cross infection is avoided, the workload of medical staff is reduced, the pain of the patients is reduced, and the mortality and disability rate of wounds are reduced.
Most of electronic negative pressure sources, drainage tubes, dressings, sealing films and drainage containers which are commonly used in the prior VSD technology in hospitals are separated and connected one by one during use, so that the requirements of connection and matching of the parts of products on gas leakage and liquid leakage are high, the operation is complex, the cost is high, the technical level requirements on medical staff are high, the comfort for patients is poor, and the inconvenience in patient movement is easy to cause.
Disclosure of Invention
The application provides a negative pressure dressing patch aiming at the problems.
The technical scheme adopted by the application is as follows:
the utility model provides a negative pressure dressing subsides, including negative pressure dressing and drainage box, the drainage box is located negative pressure dressing upper end, negative pressure dressing lower extreme is pasted on the skin around the surface of a wound, negative pressure dressing is used for absorbing the infiltration liquid of surface of a wound, the drainage box is used for the infiltration liquid suction in with the negative pressure dressing, the drainage box includes the outer wall, gasbag and exhaust tube, the gasbag outside is located to the outer wall circle, and the gasbag outside is equipped with the overlap with outer wall connection, the outer wall is connected with negative pressure dressing, all be equipped with the through-hole on negative pressure dressing and the gasbag, the exhaust tube passes outer wall and gasbag intercommunication in order to take out the gas or the liquid in the gasbag, the outer wall includes the slider of several end to end, the several slider articulates in proper order.
Further in that the negative pressure dressing comprises a protective layer and an absorption layer, the outer wall is connected to the upper end of the protective layer, a through hole is arranged on the protective layer, the protective layer is covered on the absorption layer, and the edge of the protective layer is stuck on the skin.
Further, a sealing ball is arranged in the exhaust tube and is positioned at one end of the exhaust tube connected with the air bag, and the sealing ball is used for sealing the air bag.
Further, the absorbent layer is made of an anti-blocking material.
Further, the outer wall is made of transparent material and is provided with warning lines.
Further, the exhaust pipe is a hose.
Further, one end of the sliding block is a cylindrical bulge, the other end of the sliding block is a cylindrical groove, the cylindrical bulge of the sliding block is clamped in the cylindrical groove of the adjacent sliding block, and the sliding block is provided with a clamping block at the upper end and the lower end of the cylindrical groove.
The beneficial effects of the application are as follows: the drainage box is arranged at the upper end of the negative pressure dressing, the lower end of the negative pressure dressing is adhered to the skin around the wound surface, and when the negative pressure dressing is used, the lower end of the negative pressure dressing adhered by the negative pressure dressing is directly adhered to the skin around the wound surface, so that the comfort of a patient is improved, the patient can move conveniently, the operation of connection is reduced, the technical level requirement on operators is reduced, the drainage tube is reduced, and the cost is reduced; the negative pressure dressing and the air bag are respectively provided with a through hole, when the air pump or the injector is used for pumping out the air or the liquid in the air bag at the air pumping pipe, the air pressure in the air bag is smaller than the external air pressure, the air bag is shrunken, the air bag forms a negative pressure state, and the negative pressure sucks the seepage in the negative pressure dressing into the air bag through the through holes or sucks the seepage on the wound surface into the negative pressure dressing; maintaining continuous and stable negative pressure given to the wound surface in the air sac rebound process; when liquid seeps out, the seepage liquid is sucked into the air bag, and the air bag prevents the sucked liquid from returning to the negative pressure dressing to contact the wound surface and the skin, so that the liquid is separated from the wound surface, and the wound surface infection is reduced; the outer side of the air bag is provided with the flash connected with the outer wall, so that the flash limits the position of the air bag, the outer wall cannot be moved out, the shape of the drainage box is guaranteed, the outer wall has a supporting effect on the air bag, the outer wall comprises a plurality of sliding blocks connected end to end, the sliding blocks and the adjacent sliding blocks can relatively rotate up and down, and the negative pressure dressing plaster can be more attached to a human body due to up and down rotation of the sliding blocks, so that the comfort of use of a patient is enhanced.
Drawings
FIG. 1 is a schematic structural view of a negative pressure dressing patch of the present application;
FIG. 2 is a schematic view of the structure of the exhaust pipe;
FIG. 3 is a schematic structural view of an airbag;
fig. 4 is a schematic view of the structure of the outer wall.
The reference numerals in the drawings are as follows: 1. the negative pressure dressing comprises a negative pressure dressing body 11, a protective layer 12, an absorption layer 2, a drainage box 21, an outer wall 211, a sliding block 2111, a cylindrical protrusion 2112, a cylindrical groove 2113, a clamping block 22, an air bag 221, flash edges 23, an exhaust pipe 3, a sealing ball 4, a warning line 5 and a through hole.
Detailed Description
The foregoing and other features and advantages of the application will be apparent from the following, more particular, description of the application, as illustrated in the accompanying drawings, in which embodiments described are merely some, but not all embodiments of the application.
Referring to fig. 1, 3 and 4, the application provides a negative pressure dressing plaster, which comprises a negative pressure dressing 1 and a drainage box 2, wherein the drainage box 2 is arranged at the upper end of the negative pressure dressing 1, the lower end of the negative pressure dressing 1 is adhered to the skin around a wound surface, the negative pressure dressing 1 is used for absorbing the liquid seepage of the wound surface, the drainage box 2 is used for sucking out the liquid seepage in the negative pressure dressing 1, the drainage box 2 comprises an outer wall 21, an air bag 22 and an exhaust pipe 23, the outer wall 21 is arranged at the outer side of the air bag 22 in a circling way, the outer side of the air bag 22 is provided with a flash 221 connected with the outer wall 21, the outer wall 21 is connected with the negative pressure dressing 1, the negative pressure dressing 1 and the air bag 22 are respectively provided with a through hole 5, the exhaust pipe 23 penetrates through the outer wall 21 to be communicated with the air bag 22 so as to extract the gas or liquid in the air bag 22, the outer wall 21 comprises a plurality of sliders 211 connected end to end, the sliders 211 are sequentially hinged, the sliders 211 and the adjacent sliders can relatively rotate up and down, the drainage box 2 are arranged at the upper end of the negative pressure dressing 1, and the lower end of the negative pressure dressing 1 is adhered to the skin around the wound surface, when in use, the negative pressure dressing 1 is directly adhered to the skin around the skin, the negative pressure dressing 1, the negative pressure dressing is convenient to be adhered to the patient, the operation has reduced operation cost, and reduced, and comfort, and the comfort is required; the negative pressure dressing 1 and the air bag 22 are respectively provided with a through hole 5, when the air pump or the injector is used for pumping out the air or the liquid in the air bag 22 at the air pumping pipe 23, the air pressure in the air bag 22 is smaller than the external air pressure, the air bag 22 is shrunken, the air bag 22 forms a negative pressure state, and the negative pressure sucks the seepage in the negative pressure dressing 1 into the air bag 22 through the through holes 5 or sucks the seepage on the wound surface into the negative pressure dressing 1; the air bag 22 keeps continuous and stable negative pressure to the wound surface in the rebound process; when liquid seeps out, the seeping liquid is sucked into the air sac 22, and the air sac 22 prevents the sucked liquid from returning to the negative pressure dressing 1 to contact the wound surface and the skin, so that the liquid is separated from the wound surface, and the wound surface infection is reduced; the outer side of the air bag 22 is provided with the flash 221 connected with the outer wall 21, so that the flash 221 limits the position of the air bag 22 and cannot move out of the outer wall 21, the shape of the drainage box 2 is guaranteed, the outer wall 21 has a supporting effect on the air bag 22, the outer wall 21 comprises a plurality of sliding blocks 211 connected end to end, the sliding blocks 211 and the adjacent sliding blocks 211 can rotate up and down relatively, and the up and down rotation of the sliding blocks 211 enables the negative pressure dressing 1 to be attached to a human body more closely, so that the comfort of the use of a patient is enhanced. Specifically, the upper and lower edges of the air bag 22 are provided with fins 221, which are adhered to the outer wall 21, to limit the vertical rotation of the slider 211, and prevent the slider 211 from rotating too much.
Referring to fig. 1 and 3, the negative pressure dressing 1 comprises a protective layer 11 and an absorption layer 12, the outer wall 21 is connected to the upper end of the protective layer 11, a through hole 5 is formed in the protective layer 11, the protective layer 11 is covered on the absorption layer 12, the edge of the protective layer 11 is stuck to the skin, the absorption layer 12 is provided with connected holes, the absorption layer 12 is used for absorbing liquid exuding from a wound surface, the air bag 22 sucks the absorption layer 12 into the absorption layer 12 when in a negative pressure state, the absorption layer 12 sucks the liquid on the wound surface into the negative pressure, the negative pressure is given to the wound surface, the protective layer 11 is a waterproof protective layer 11, the upper surface has a waterproof effect, the negative pressure dressing 1 is prevented from being stuck to drop by dipping water by a user, the negative pressure dressing 1 and the drainage box 2 are directly stuck to the periphery of the wound surface of a patient, the comfort of the patient is improved, and the patient is convenient to act.
Referring to fig. 1 and 2, a sealing ball 3 is disposed in the air exhaust pipe 23, the sealing ball 3 is located at one end of the air exhaust pipe 23 connected with the air bag 22, the sealing ball 3 is used for sealing the air bag 22, specifically, the inner diameter of one end of the air exhaust pipe 23 connected with the air bag 22 is smaller than the diameter of the sealing ball 3, when the air exhaust pipe 23 is used for exhausting the gas or liquid in the air bag 22, the sealing ball 3 is sucked outwards from one end of the air exhaust pipe 23 connected with the air bag 22, so that the gas or liquid in the air bag 22 can be exhausted, when the air bag 22 is completely deflated, the air exhaust pipe or the injector is not exhausted, and the sealing ball 3 is pressed to one end of the air exhaust pipe 23 connected with the air bag 22 due to the fact that the external air pressure is larger than the air pressure in the air bag 22, and the air bag 22 is sealed.
The absorption layer 12 is made of anti-adhesion material, and when the negative pressure dressing 1 is uncovered after the use, the negative pressure dressing is not adhered to the wound surface, so that pain of a patient is reduced, and the wound surface is prevented from being damaged again.
Referring to fig. 1, the outer wall 21 is made of a transparent material and has a warning line 4 which, when the balloon 22 springs back to the position of this warning line 4, indicates to the user that the pressure has been reduced to the point where it is necessary to withdraw the gas or liquid from the balloon 22.
The air extraction pipe 23 is a hose, and can be used for conveniently extracting air in different directions and different positions.
Referring to fig. 4, one end of the sliding block 211 is a cylindrical protrusion 2111, the other end of the sliding block 211 is a cylindrical groove 2112, the cylindrical protrusion 2111 of the sliding block 211 is clamped in the cylindrical groove 2112 of the adjacent sliding block 211, a clamping block 2113 is arranged at the upper end and the lower end of the cylindrical groove 2112 of the sliding block 211, one end of the sliding block 211 is the cylindrical protrusion 2111, the other end of the sliding block is the cylindrical groove 2112, so that the adjacent sliding blocks 211 can rotate smoothly, and the clamping block 2113 is arranged at the upper end and the lower end of the cylindrical groove 2112 of the sliding block 211, so that the rotation angle between the adjacent sliding blocks 211 is not too large, and the negative pressure dressing paste of the application is more attached to an affected part. .
Although the present application has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present application by using the methods and technical matters disclosed above without departing from the spirit and scope of the present application, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present application are within the scope of the technical matters of the present application.