Wearable negative pressure drainage dressing device
By using a fixing mechanism, inductive induction mechanism and deflector support plate structure in the negative pressure drainage dressing device, the problems of loose sealing film, inconvenient battery power supply and bulky equipment are solved, and the negative pressure drainage effect with simple operation and significant effect is achieved.
Patent Information
- Application Number
- CN202421210648.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-05-29
AI Technical Summary
The existing closed negative pressure drainage dressing device has problems such as loose sealing membrane, inconvenient battery power supply and bulky equipment when used, resulting in cumbersome and inconvenient operation.
A wearable negative pressure drainage dressing device is designed, using a fixing mechanism to fix the sealing film and dressing matrix to the skin, wireless charging is achieved using an inductive induction mechanism, and the fluid space is optimized through the deflector and the support sheet structure to improve drainage efficiency.
The operation process of negative pressure drainage is simplified, the enclosure and operation convenience are improved, the inconvenience of battery power is avoided, and the effect of negative pressure drainage is improved.
Smart Images
Figure CN222870791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and more specifically, to a wearable negative pressure drainage dressing device. Background Art
[0002] Vacuum sealing drainage (VSD) is a new wound treatment technology. It uses an adhesive semipermeable membrane to seal the open wound, uses a vacuum device to generate a certain amount of negative pressure, acts on the wound after debridement through a porous dressing, absorbs wound exudate and flows out through the drainage tube. In 1992, Dr. Fleischmann and others combined traditional negative pressure drainage with current closed dressings and successfully applied it to the treatment of open fracture wounds. In 1997, Argenta and Morykwas et al. found that VSD can promote local blood circulation in the wound, promote the production of granulation tissue, reduce the bacterial content of tissues, and improve the survival rate of flaps or free skin grafts. With the application and development of VSD technology, more and more studies and clinical reports have confirmed that VSD technology has a good effect in treating various acute and chronic wounds, including acute soft tissue defects, various chronic (pressure, vascular, diabetic) ulcers, surgical incision dehiscence or infection, etc. This therapy can accelerate blood circulation in the wound area, significantly promote the entry of new blood vessels into the wound, stimulate the growth of granulation tissue, fully drain, reduce edema, reduce pollution, inhibit bacterial growth, and directly accelerate wound healing or create conditions for surgical repair. At present, VSD technology has been rapidly promoted in developed countries such as Europe and the United States. It is hailed as a revolutionary technology for the treatment of trauma and a new milestone in the field of trauma care. It has been widely used in various medical fields such as trauma, burns, and plastic surgery. In 2003, Germany, Austria and other countries included this technology in the wound treatment guidelines. In the past decade, my country has begun to introduce this technology and has accumulated a lot of experience in basic research and clinical application.
[0003] However, the existing closed negative pressure drainage dressing device has many inconveniences in actual use. For example, under the action of negative pressure suction, the part of the semipermeable membrane of the closed dressing that adheres to the skin may loosen, resulting in insufficient closure, and the negative pressure drainage needs to be continued again, which is cumbersome to operate. In addition, the existing mobile negative pressure source is battery-powered. When a power outage occurs during the negative pressure suction operation, if the operator does not have a spare battery, the negative pressure treatment will be forced to be interrupted, which causes inconvenience. Furthermore, the traditional battery-powered negative pressure source is bulky and inconvenient to carry. Utility Model Content
[0004] The utility model aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provide a wearable negative pressure drainage dressing device to facilitate the operation of negative pressure treatment.
[0005] The utility model provides a wearable negative pressure drainage dressing device, comprising a sealing film, a dressing base, a suction cup, a catheter and a negative pressure source, wherein the sealing film seals the dressing base on the wound surface, the suction cup is connected to the dressing base, and the suction cup is connected to the negative pressure source via the catheter, and further comprises a fixing mechanism, wherein the fixing mechanism comprises a connected pressing part and a fixing part, the pressing part is arranged on the sealing film, and the fixing part connects the two ends of the pressing part and is sleeved on a body part; the negative pressure source is provided with an electric induction mechanism, the negative pressure source is electrically connected to the electric induction mechanism, and the negative pressure source is matched with a mobile terminal through the electric induction mechanism for wireless charging.
[0006] In the technical solution, the fixing mechanism is used to further fix the sealing film, the dressing base and the suction cup to the body part. The fixing part is sleeved on the body part, and the pressing part is pressed tightly against the sealing film to prevent the sealing film from loosening during the negative pressure adsorption process, avoid repeated sealing operations that lead to cumbersome operation processes, and thus simplify the operation process of negative pressure drainage.
[0007] By setting up the power receiving induction mechanism, the negative pressure source can be wirelessly charged through the mobile terminal, thereby facilitating the charging operation of the negative pressure source and avoiding the inconvenience caused by a dead battery during the negative pressure therapy.
[0008] Furthermore, a hollow opening is provided in the middle of the fixing portion, the hollow opening is used to accommodate the suction cup member, and the area of the fixing portion is larger than the closing film.
[0009] Furthermore, the pressing portion is arranged away from the dressing base.
[0010] In the present technical solution, if the pressing part is pressed on the dressing base, a cavity will be easily formed at the connection between the dressing base and the closing film. Therefore, the pressing part is arranged away from the dressing base to avoid the formation of the cavity, thereby ensuring that the pressing part can be fully utilized and used to press the closing film.
[0011] Furthermore, a connecting mechanism is provided on the negative pressure source, and the connecting mechanism is used for detachably connecting the mobile end.
[0012] Furthermore, the connecting mechanism is a clamping device, the mobile terminal is a mobile phone, and the clamping device is used to clamp the mobile phone.
[0013] Furthermore, the pressing portion and the fixing portion are integrally connected, and both the pressing portion and the fixing portion are made of elastic material.
[0014] Furthermore, the power receiving induction mechanism includes a radio receiving end.
[0015] Furthermore, it also includes a guide plate, on which drainage holes are provided, the drainage holes are in the shape of long strips and are provided in the middle of the guide plate; a plurality of support sheets are connected to the inner side of the guide plate, a fluid space is formed between the guide plate and the wound surface, the dressing base is filled in the fluid space, the suction cup is connected to the dressing base through the drainage holes, the extension direction of the support sheet is the same as the extension direction of the drainage holes, and the support sheet is provided with a plurality of openings.
[0016] In the present technical solution, the sealing membrane fixes the guide plate on the wound surface, and forms a closed space between the guide plate and the wound surface. The dressing substrate is in direct contact with the wound surface. After the fluid in the fluid space passes through the dressing substrate, it flows to the top of the guide plate through the drainage hole, and is discharged through the suction cup and the catheter in turn. The fluid here can be liquid or gas, etc. When there is no bleeding, exudate or other liquefied substances on the wound surface, negative pressure adsorption is turned on, which not only promotes blood circulation, but also the wound surface corresponding to the drainage hole will be subjected to circumferential and inward force, that is, the direction of the force is the closing direction of the wound. Since the drainage hole is in the shape of a long strip and matches the long strip wound, different positions of the wound will be subjected to force, thereby promoting wound healing; when there is bleeding, exudate or other liquefied substances on the wound surface, negative pressure adsorption is turned on to drain the liquid from the catheter.
[0017] The support sheet is arranged to provide support for the guide plate, thereby preventing the guide plate from being pressed down and compressing the dressing base due to the adsorption force. That is, the support plate avoids the dressing base from being compressed, provides sufficient flow space for the flow of the fluid, improves the efficiency of sucking out the fluid, and prevents only the skin near the drainage hole from receiving the adsorption force due to the small flow space. That is, in the present solution, a fluid space is formed on the side of the support sheet away from the drainage hole, so that when the fluid in the space is sucked into the drainage hole through the opening, an adsorption force directed toward the wound is also generated in the space, thereby further promoting blood circulation and wound healing.
[0018] The extension direction of the support sheet is the same as that of the drainage hole, so that the opening on the support sheet faces the drainage hole. When negative pressure adsorption is performed, the fluid on the side of the opening away from the drainage hole can be sucked out, thereby generating a force pointing in the direction of wound healing.
[0019] Furthermore, the middle portion of the guide plate is arched upward, the guide plate is connected to at least two support plates, and the support plates are symmetrically distributed with the drainage hole as the center.
[0020] Furthermore, the guide plate includes a top surface and inclined surfaces connected to the left and right sides of the top surface, the two inclined surfaces are symmetrically distributed with the top surface as the center, and the drainage hole is arranged on the top surface.
[0021] Furthermore, the guide plate also includes shielding surfaces connected to the front and rear sides of the top surface, and the shielding surfaces are connected to the inclined surface.
[0022] Furthermore, four supporting plates are connected to the inner side of the guide plate and connected to the inner side of the inclined surface.
[0023] Furthermore, the openings are evenly distributed on the lower part of the support sheet, and the openings on different support sheets on the same side correspond to each other one by one.
[0024] Compared with the prior art, the beneficial effects of the utility model are:
[0025] (1) By setting up a fixing mechanism, the sealing film and the dressing base are further sealed and fixed on the skin, preventing the sealing film from loosening during the negative pressure adsorption process, avoiding repeated sealing operations that lead to cumbersome operation processes, thereby simplifying the operation process of negative pressure drainage; at the same time, the sealing performance is improved to ensure the effect of negative pressure drainage.
[0026] (2) By setting up the power receiving induction mechanism, the negative pressure source can be wirelessly charged through the mobile terminal, thereby facilitating the charging operation of the negative pressure source and further providing convenience for the operator of the negative pressure drainage. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a schematic diagram of the structure of the fixing mechanism of Example 1.
[0028] Figure 2 This is a schematic diagram of the structure of the wearable negative pressure drainage dressing device of Example 1.
[0029] Figure 3 This is a schematic diagram of the structure of the guide plate and the support plate of Example 2.
[0030] Figure 4 This is a schematic diagram of the structure of the closed membrane and guide plate of Example 2.
[0031] Figure 5 This is a schematic diagram of the partial cross-sectional structure of the wearable negative pressure drainage dressing device of Example 2.
[0032] Figure 6 This is a schematic diagram of the structure of the fluid space of Example 2.
[0033] Figure numerals: guide plate 100, drainage hole 110, top surface 140, inclined surface 150, fluid space 160, dressing base 170, support sheet 200, opening 210, closing membrane 300, suction cup member 400, catheter 500, fixing mechanism 600, downward pressing portion 610, fixing portion 620, negative pressure source 700. DETAILED DESCRIPTION
[0034] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0035] Example 1
[0036] Combination Figure 1 and Figure 2 The present embodiment provides a wearable negative pressure drainage dressing device, comprising a sealing film 300, a dressing base 170, a suction cup 400, a catheter 500 and a negative pressure source 700, wherein the sealing film 300 seals the dressing base on the wound surface, the suction cup 400 is connected to the dressing base, and the suction cup 400 is connected to the negative pressure source 700 through the catheter 500, and further comprises a fixing mechanism 600, wherein the fixing mechanism 600 comprises a connected pressing portion 610 and a fixing portion 620, wherein the pressing portion 610 is arranged on the sealing film, and the fixing portion 620 connects the two ends of the pressing portion 610 and is sleeved on a body part; the negative pressure source 700 is provided with a power receiving induction mechanism, wherein the negative pressure source 700 is electrically connected to the power receiving induction mechanism, and the negative pressure source 700 is matched with a mobile terminal through the power receiving induction mechanism for wireless charging.
[0037] In the present technical solution, the fixing mechanism 600 is used to further fix the sealing film 300, the dressing base and the suction cup 400 on the body part. The fixing part 620 is sleeved on the body part, and the pressing part 610 is pressed tightly on the sealing film 300 to prevent the sealing film 300 from being partially loosened during the negative pressure adsorption process, avoid repeated sealing operations that lead to cumbersome operation processes, and thus simplify the operation process of negative pressure drainage.
[0038] By setting up the power receiving induction mechanism, the negative pressure source 700 can be wirelessly charged through the mobile terminal, thereby facilitating the charging operation of the negative pressure source 700.
[0039] A hollow opening is provided in the middle of the fixing portion 620, and the hollow opening is used to accommodate the suction cup member 400, and the area of the fixing portion 620 is larger than the closing film 300. The pressing portion 610 is arranged to avoid the dressing substrate. A connecting mechanism is also provided on the negative pressure source 700, and the connecting mechanism is used to detachably connect the mobile terminal. The connecting mechanism is a clamping device (not shown), the mobile terminal is a mobile phone, and the clamping device is used to clamp the mobile phone. Furthermore, the mobile terminal is a mobile phone that can be reversely wirelessly charged. The pressing portion 610 and the fixing portion 620 are integrally connected, and the pressing portion 610 and the fixing portion 620 are both made of elastic material. For example, the pressing portion 610 and the fixing portion 620 are integrally connected as an elastic band, and the power receiving induction mechanism includes a radio receiving end.
[0040] Example 2
[0041] Combination Figures 3 to 5 This embodiment provides a wearable negative pressure drainage dressing device, and its structure is different from that of the wearable negative pressure drainage dressing device provided in Embodiment 1 in that: it also includes a guide plate 100, and a drainage hole 110 is provided on the guide plate 100, and the drainage hole 110 is in a strip shape and is provided in the middle of the guide plate 100; a plurality of support sheets 200 are connected to the inner side of the guide plate 100, and a fluid space 170 is formed between the guide plate 100 and the wound surface, and the sealing film 300 is sealed on the guide plate 100, and the dressing base 180 is filled in the fluid space 170, and the suction cup member 400 is connected to the dressing base 180 through the drainage hole 110, and the extension direction of the support sheet 200 is the same as the extension direction of the drainage hole 110, and the support sheet 200 is provided with a plurality of openings. When in use, the drainage hole 110 is aligned with the opening of the wound.
[0042] The sealing film 300 fixes the guide plate 100 on the wound surface, and forms a closed space between the guide plate 100 and the wound surface. The dressing base 180 directly contacts the wound surface. After the fluid in the fluid space 170 passes through the dressing base 180, it flows to the top of the guide plate 100 through the drainage hole 110, and is discharged through the suction cup 400 and the catheter 500 in sequence. The fluid here can be liquid or gas, etc. When there is no bleeding, exudate or other liquefied substances on the wound surface, negative pressure adsorption is turned on, which not only promotes blood circulation, but also the wound surface corresponding to the drainage hole 110 will be subjected to circumferential and inward force, that is, the direction of the force is the closing direction of the wound. Since the drainage hole 110 is in the shape of a long strip and matches the long strip wound, different positions of the wound will be subjected to force, thereby promoting the healing of the wound; when there is bleeding, exudate or other liquefied substances on the wound surface, negative pressure adsorption is turned on to drain the liquid from the catheter 500.
[0043] The support sheet 200 is configured to provide support for the guide plate 100, thereby preventing the guide plate 100 from being pressed down and compressing the dressing base 180 due to the adsorption force. That is, the support plate avoids the dressing base 180 from being compressed, provides sufficient flow space for the flow of the fluid, improves the efficiency of sucking out the fluid, and prevents the situation in which only the skin near the drainage hole 110 can receive the adsorption force due to the small flow space. That is, in the present solution, a fluid space 170 is formed on the side of the support sheet 200 away from the drainage hole 110, so that when the fluid in the space is sucked to the drainage hole 110 through the opening, an adsorption force directed toward the wound is also generated in the space, thereby further promoting blood circulation and wound healing.
[0044] The extension direction of the support sheet 200 is the same as that of the drainage hole 110, so that the opening on the support sheet 200 faces the drainage hole 110. When negative pressure adsorption is performed, the fluid on the side of the opening away from the drainage hole 110 can be sucked out, thereby generating a force pointing in the direction of wound healing.
[0045] The extension direction of the support sheet 200 is the same as the extension direction of the drainage hole 110, so that the opening 210 on the support sheet 200 faces the drainage hole 110, and when negative pressure adsorption is performed, the fluid on the side of the opening 210 away from the drainage hole 110 can be sucked out, thereby generating a force pointing to the direction of wound healing. Specifically, the materials of the guide plate 100 and the support sheet 200 include but are not limited to plastics, and the material of the dressing base includes but is not limited to polyvinyl alcohol foam, sponge or gauze.
[0046] The middle part of the guide plate 100 is arched upward, and the guide plate 100 is connected to at least two support sheets 200, and the support sheets 200 are symmetrically distributed with the drainage hole 110 as the center. The guide plate 100 includes a top surface 140 and an inclined surface 150 connected to the left and right sides of the top surface 140, and the two inclined surfaces 150 are symmetrically distributed with the top surface 140 as the center. The inclination angle of the inclined surface is between 5° and 30°, such as 5°, 20° or 30°. In this embodiment, the guide plate 100 is connected to four support sheets 200. The height of the guide plate 100 is between 2 and 6 mm, such as 2 mm, 3 mm or 6 mm. The aperture of the opening 210 is between 1.5 and 5 mm.
[0047] The openings 210 are evenly distributed on the lower portion of the support sheet 200 , and the openings 210 on different support sheets 200 on the same side correspond to each other.
[0048] In this embodiment, the drainage holes 110 are arranged in a long strip shape, so that different injured positions of the long strip wound can be subjected to force, and the force is directed in the direction of wound healing, thereby promoting wound healing; by the arrangement of the support sheet 200 and the opening 210, the fluid space 170 away from the side of the drainage hole 110 can also generate a force on the skin directed in the direction of wound healing, so that the force-bearing area of the skin is increased, further promoting blood circulation and wound healing; by the arrangement of the fluid space 170, more flow space is provided for the fluid, thereby improving the drainage efficiency.
[0049] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.
Claims
1. A wearable negative pressure drainage dressing device, comprising a sealing film, a dressing base, a suction cup, a catheter and a negative pressure source, wherein the sealing film seals the dressing base to the wound surface, the suction cup is connected to the dressing base, and the suction cup is connected to the negative pressure source via the catheter, characterized in that: It also includes a fixing mechanism, the fixing mechanism includes a pressing part and a fixing part connected to each other, the pressing part is arranged on the closing film, and the fixing part connects two ends of the pressing part and is sleeved on the body part; The negative pressure source is provided with a power receiving induction mechanism, the negative pressure source is electrically connected to the power receiving induction mechanism, and the negative pressure source is matched with the mobile terminal through the power receiving induction mechanism to perform wireless charging.
2. The wearable negative pressure drainage dressing device according to claim 1, characterized in that: A hollow opening is arranged in the middle of the fixing portion, and the hollow opening is used to accommodate the suction cup member, and the area of the fixing portion is larger than that of the closing film.
3. The wearable negative pressure drainage dressing device according to claim 2, characterized in that: The pressing portion is arranged away from the dressing base.
4. The wearable negative pressure drainage dressing device according to claim 1, characterized in that: The negative pressure source is also provided with a connecting mechanism, and the connecting mechanism is used for detachably connecting with the mobile end.
5. The wearable negative pressure drainage dressing device according to claim 4, characterized in that: The connecting mechanism is a clamping device, the mobile terminal is a mobile phone, and the clamping device is used to clamp the mobile phone.
6. The wearable negative pressure drainage dressing device according to claim 1, characterized in that: The pressing portion and the fixing portion are connected as one body, and both the pressing portion and the fixing portion are made of elastic material.
7. The wearable negative pressure drainage dressing device according to any one of claims 1 to 5, characterized in that: It also includes a guide plate, which is provided with drainage holes, the drainage holes are in the shape of long strips and are arranged in the middle of the guide plate; a plurality of support sheets are connected to the inner side of the guide plate, a fluid space is formed between the guide plate and the wound surface, the dressing base is filled in the fluid space, the suction cup is connected to the dressing base through the drainage holes, the extension direction of the support sheet is the same as the extension direction of the drainage holes, and the support sheet is provided with a plurality of openings.
8. The wearable negative pressure drainage dressing device according to claim 7, characterized in that: The middle part of the guide plate is arched upwards, and the guide plate is connected to at least two support plates, and the support plates are symmetrically distributed with the drainage hole as the center.
9. The wearable negative pressure drainage dressing device according to claim 8, characterized in that: The guide plate includes a top surface and inclined surfaces connected to the left and right sides of the top surface. The two inclined surfaces are symmetrically distributed with the top surface as the center. The drainage holes are arranged on the top surface.
10. The wearable negative pressure drainage dressing device according to claim 9, characterized in that: The guide plate also includes shielding surfaces connected to the front and rear sides of the top surface, and the shielding surfaces are connected to the inclined surface.