Postoperative multifunctional wound protection device for department of burn and trauma

By designing a wound protection device with ventilation holes, an injection tube, and a squeezing mechanism, the problem of pain caused by frequent opening and closing is solved, achieving painless medication and wound ventilation protection, which is suitable for wound care after burn surgery.

CN121338221APending Publication Date: 2026-01-16FOURTH MILITARY MEDICAL UNIVERSITY
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Patent Information

Application Number
CN202511628495.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing postoperative wound protection devices provide protection by covering the wound, but frequent opening and closing can cause pain for patients and make medication application inconvenient.

Method used

A multifunctional protective device was designed, including a protective shell, a replaceable filling layer, vents, an injection tube, and a squeezing mechanism. The squeezing plate is driven by a knob to squeeze the drug bag, and the drug is delivered to the wound through the injection needle and mesh channel. The device avoids opening and closing movements and provides double protection in combination with medical silicone pads and breathable mesh.

Benefits of technology

It enables medication application without removing the protective shell, avoiding friction and traction between the device and the skin, improving patient comfort, and providing breathability and protection for the wound to prevent secondary damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a burn and trauma department postoperative multifunctional wound protection device, and relates to the technical field of medical instruments, the burn and trauma department postoperative multifunctional wound protection device comprises a protection shell, a groove is formed in the lower surface of the protection shell, a replaceable filling layer is arranged in the groove, and a plurality of air holes are formed in the upper surface of the protection shell; a plurality of air holes are formed in the upper surface of the base, a latticed top cover is jointly formed among the air holes, a latticed channel is formed in the latticed top cover, a plurality of through holes are formed in the lower surface of the latticed channel, and a medicine injection pipe is fixedly connected to the interior of each through hole. The protection shell does not need to be detached during medicine applying, only the rotary knob needs to be rotated to drive the extrusion plate to extrude the liquid medicine bag, liquid medicine is conveyed to the medicine injection pipe through the injection needle and the grid channel and finally evenly dripped on the wound surface, the device does not need to be opened and closed in the whole process, traction and friction at the attached position of the protection shell and the skin are avoided, and the patient nursing comfort is greatly improved.
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Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a multifunctional wound protection device for postoperative burn and trauma surgery. Background Technology

[0002] Burns are a common clinical injury that seriously affects patients' physical health and quality of life. Postoperative wound care and protection are crucial and directly impact the patient's recovery process and prognosis.

[0003] Among them, the announcement number CN213373004U is a wound protection device for the recipient area after epidermal transplantation for vitiligo. The device includes a wound protection component, and a first arc-shaped component and a second arc-shaped component disposed at both ends of the wound protection component; the first arc-shaped component and the second arc-shaped component are respectively provided with a first contractile component and a second contractile component that are movably connected.

[0004] However, existing postoperative wound protection devices usually protect the wound by covering it. Since the wound needs to be opened frequently for medication, the protection device needs to be opened and closed frequently. The protection device usually adheres to the skin, which is accompanied by a certain tearing sensation when opening and closing, causing pain to the patient. Summary of the Invention

[0005] In view of the problems existing in the above-mentioned postoperative wound protection devices, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a multifunctional wound protection device for postoperative burn surgery, which solves the problem that existing postoperative wound protection devices usually protect the wound by covering it. However, the wound needs to be opened frequently for medication, so the protection device needs to be opened and closed frequently. The protection device usually adheres to the skin, which is accompanied by a certain tearing sensation when opening and closing, causing pain to the patient.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A multifunctional wound protection device for postoperative burn surgery includes a protective shell. The lower surface of the protective shell has a groove, and the interior of the groove contains a replaceable filling layer. The upper surface of the protective shell has multiple ventilation holes, which together form a mesh-like top cover. The mesh-like top cover has mesh channels inside, and the lower surface of each mesh channel has multiple through holes. An injection tube is fixedly connected to the interior of each through hole. A fixing frame is fixedly connected to one end of the protective shell, and a medication bag is placed inside the fixing frame. The medication bag matches the mesh channels. A squeezing mechanism is provided inside the fixing frame, and the squeezing mechanism matches the medication bag.

[0008] Preferably, the extrusion mechanism includes a screw, a sleeve, an extrusion plate, and a knob. A circular hole is provided on the upper surface of the fixed frame. The screw is rotatably connected to the inside of the circular hole. One end of the sleeve is provided with an internal thread hole. The sleeve is threaded onto the wall of the screw through the internal thread hole. The extrusion plate is fixedly connected to the lower end of the sleeve. The knob is fixedly connected to the end of the screw away from the sleeve.

[0009] Preferably, the replaceable filling layer includes a medical silicone pad and a breathable mesh. The medical silicone pad fills the interior of the groove, and the breathable mesh is attached to the lower surface of the medical silicone pad. The upper surfaces of both the medical silicone pad and the breathable mesh are provided with insertion holes, and each insertion hole is matched with a corresponding injection tube.

[0010] Preferably, the upper surface of the mesh channel is provided with a liquid inlet hole, and an injection needle is fixedly connected inside the liquid inlet hole, the injection needle being matched with the medicine bag.

[0011] Preferably, both ends of the groove are provided with arc-shaped grooves, and rubber pads are fixedly connected inside the two arc-shaped grooves.

[0012] Preferably, two straps are symmetrically arranged at both ends of the protective shell, and one end of each of the two straps is fixedly connected to the Velcro clasp and the Velcro clasp respectively.

[0013] Preferably, the side of the extrusion plate is fitted to the inner wall of the fixing frame.

[0014] Preferably, a mounting hole is provided on one side of the fixing frame, and a switch cover is provided inside the mounting hole.

[0015] Preferably, a one-way valve is fixedly connected inside the mesh channel near the liquid inlet.

[0016] Preferably, a silicone ring is fixedly connected to the lower end of each of the injection tubes.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. This invention eliminates the need to disassemble the protective shell when applying medication. Simply turn the knob to drive the squeezing plate to squeeze the medication bag. The medication is then delivered to the injection tube through the injection needle and mesh channel, and finally evenly dripped onto the wound. There is no opening or closing of the device throughout the process, avoiding pulling and friction at the point where the protective shell contacts the skin, thus greatly improving the patient's comfort.

[0018] 2. In this invention, the protective shell and the replaceable filling layer form a double protection. The protective shell can resist external friction and collision, and avoid secondary damage to the wound. The medical silicone pad conforms to the contour of the skin to prevent excessive pressure on the wound. At the same time, the breathable mesh can improve the breathability of the wound to keep the wound dry and inhibit bacterial growth. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 Side sectional view of the inner protective shell; Figure 3 This is a three-dimensional structural diagram of the replaceable filling layer of the present invention; Figure 4 For the present invention Figure 2 A three-dimensional structural diagram of the injection tube.

[0021] Explanation of reference numerals in the attached figures: 1. Protective shell, 2. Mesh top cover, 3. Injection tube, 4. Fixing frame, 5. Medication bag, 6. Screw, 7. Sleeve, 8. Squeezing plate, 9. Knob, 10. Medical silicone pad, 11. Breathable mesh, 12. Injection needle, 13. Rubber pad, 14. Strap, 15. Velcro clasp, 16. Velcro clasp, 17. Switch cover, 18. One-way valve, 19. Silicone ring. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This invention discloses a multifunctional wound protection device for postoperative burn surgery.

[0024] This invention provides, for example Figure 1-4 The multifunctional wound protection device for postoperative burn surgery shown includes a protective shell 1. The lower surface of the protective shell 1 has a groove, and the interior of the groove is provided with a replaceable filling layer. The upper surface of the protective shell 1 has multiple vent holes, and each vent hole together forms a mesh-like top cover 2. The interior of the mesh-like top cover 2 has mesh channels, and the lower surface of the mesh channels has multiple through holes. Each through hole is fixedly connected to an injection tube 3. One end of the protective shell 1 is fixedly connected to a fixing frame 4. The fixing frame 4 contains a medicine bag 5, which matches the mesh channels. The fixing frame 4 contains a squeezing mechanism, which matches the medicine bag 5.

[0025] The protective module provides physical protection and ventilation for the wound, the medication module allows medication to be administered without opening and closing the device, the squeezing module controls the delivery of the medication, and the fixing module ensures a stable fit of the device. This solves the problems of pain caused by frequent opening and closing of traditional devices and the inconvenience of medication administration, and is suitable for the long-term care needs of burn and trauma wounds.

[0026] like Figure 1-4 As shown, the extrusion mechanism includes a screw 6, a sleeve 7, an extrusion plate 8, and a knob 9. A circular hole is provided on the upper surface of the fixed frame 4. The screw 6 is rotatably connected to the inside of the circular hole. One end of the sleeve 7 is provided with an internal thread hole. The sleeve 7 is threaded onto the wall of the screw 6 through the internal thread hole. The extrusion plate 8 is fixedly connected to the lower end of the sleeve 7. The knob 9 is fixedly connected to the end of the screw 6 away from the sleeve 7. An installation hole is provided on one side of the fixed frame 4. A switch cover 17 is provided inside the installation hole. An inlet hole is provided on the upper surface of the mesh channel. An injection needle 12 is fixedly connected inside the inlet hole. The injection needle 12 matches the medicine bag 5.

[0027] Open the switch cover 17, then place the medicine bag 5 inside the fixing frame 4. Next, insert the injection needle 12 into the rubber stopper at one end of the medicine bag 5 to ensure smooth flow of the medicine. Then, rotate the knob 9 on the upper surface of the fixing frame, causing the screw 6 to rotate within the circular hole. The screw engages with the internal thread of the sleeve 7, driving the sleeve to move downwards along the screw axis. The squeezing plate descends with the sleeve, gradually squeezing the medicine bag 5 inside the fixing frame. After being squeezed, the medicine inside the bag enters the mesh channel through the injection needle 12, is evenly distributed along the channel to each injection tube 3, and then drips onto the wound surface through the injection tubes. By controlling the number of rotations of the knob, the descent distance of the squeezing plate can be precisely adjusted, thereby controlling the amount of medicine extruded.

[0028] like Figure 2-3 As shown, the replaceable filling layer includes a medical silicone pad 10 and a breathable mesh 11. The medical silicone pad 10 fills the interior of the groove, and the breathable mesh 11 is attached to the lower surface of the medical silicone pad 10. The upper surfaces of both the medical silicone pad 10 and the breathable mesh 11 are provided with insertion holes, and each insertion hole is matched with the corresponding injection tube 3.

[0029] In the groove on the lower surface of the protective shell 1, the medical silicone pad 10 and the breathable mesh 11 form a replaceable filling layer. The medical silicone pad fits the skin around the wound and adapts to the skin contour through elastic deformation to avoid pain caused by rigid friction. At the same time, the breathable mesh 11 can play a role in ventilation to keep the wound dry.

[0030] like Figure 1-2 As shown, both ends of the groove are provided with arc-shaped grooves, and rubber pads 13 are fixedly connected inside the two arc-shaped grooves. Two straps 14 are symmetrically arranged at both ends of the protective shell 1, and one end of the two straps 14 is fixedly connected to the Velcro 15 and the Velcro 16 respectively.

[0031] The rubber pads 13 inside the arc-shaped grooves at both ends of the groove can fit the skin edge of the wound, avoiding discomfort caused by friction between the corners of the protective shell and the skin. At the same time, it enhances the seal between the device and the skin, preventing external contaminants from entering from the edges. The device can be installed on the patient's body using two straps 14. The tightness can be adjusted by the Velcro 15 and the female buckle 16 to ensure that the device fits the skin without affecting blood circulation.

[0032] like Figure 2 As shown, the side of the extrusion plate 8 is attached to the inner wall of the fixing frame 4.

[0033] The side of the extrusion plate 8 is fitted against the inner wall of the fixed frame, restricting the sleeve to move only vertically and preventing it from shifting.

[0034] like Figure 2 As shown, a one-way valve 18 is fixedly connected inside the mesh channel near the liquid inlet.

[0035] The one-way valve 18 only allows the medication to flow from the injection needle to the injection tubing, preventing wound exudate or air from flowing back into the medication bag, thus preventing medication contamination and ensuring medication safety.

[0036] like Figure 2 and Figure 4 As shown, a silicone ring 19 is fixedly connected to the lower end of each injection tube 3.

[0037] The silicone ring 19 can prevent discomfort when the injection tube 3 comes into contact with the skin.

[0038] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A post-surgical wound multifunctional protection device for burns and trauma, comprising a protective shell (1), characterized in that, The lower surface of the protective shell (1) is provided with a groove, the inside of the groove is provided with a replaceable filling layer, the upper surface of the protective shell (1) is provided with a plurality of air holes, each air hole is jointly formed with a grid-shaped top cover (2), the inside of the grid-shaped top cover (2) is provided with a grid channel, the lower surface of the grid channel is provided with a plurality of through holes, the inside of each through hole is fixedly connected with a medicine injection tube (3), one end of the protective shell (1) is fixedly connected with a fixed frame (4), the inside of the fixed frame (4) is placed with a medicine liquid bag (5), the medicine liquid bag (5) is matched with the grid channel, the inside of the fixed frame (4) is provided with a squeezing mechanism, the squeezing mechanism is matched with the medicine liquid bag (5).

2. The post-surgical wound dressing according to claim 1, wherein, The squeezing mechanism comprises a screw rod (6), a sleeve (7), a squeezing plate (8) and a knob (9), the upper surface of the fixed frame (4) is provided with a circular hole, the screw rod (6) is rotatably connected in the inside of the circular hole, one end of the sleeve (7) is provided with an internal thread hole, the sleeve (7) is threadedly sleeved on the rod wall of the screw rod (6) through the internal thread hole, the squeezing plate (8) is fixedly connected to the lower end of the sleeve (7), and the knob (9) is fixedly connected to the end, away from the sleeve (7), of the screw rod (6).

3. The post-traumatic wound dressing according to claim 1, wherein, The replaceable filling layer comprises a medical silica gel pad (10) and a breathable net (11), the medical silica gel pad (10) is filled into the inside of the groove, and the breathable net (11) is attached to the lower surface of the medical silica gel pad (10); the upper surfaces of the medical silica gel pad (10) and the breathable net (11) are both provided with jack plugs, and each jack plug is matched with a corresponding medicine injection tube (3).

4. The post-traumatic wound dressing according to claim 1, wherein, The upper surface of the grid channel is provided with a liquid inlet hole, and the inside of the liquid inlet hole is fixedly connected with an injection needle (12), the injection needle (12) is matched with the medicine liquid bag (5).

5. The post-traumatic wound dressing according to claim 1, wherein Both ends of the groove are provided with arc-shaped grooves, and the inside of each arc-shaped groove is fixedly connected with a rubber pad (13).

6. The post-traumatic wound dressing according to claim 1, wherein Both ends of the protective shell (1) are symmetrically provided with two straps (14), and one end of each of the two corresponding straps (14) is fixedly connected with a magic buckle (15) and a magic buckle (16), respectively.

7. The postoperative wound of trauma surface multifunctional protection device according to claim 2, characterized in that, The side edge of the squeezing plate (8) is attached to the inner wall of the fixed frame (4).

8. The post-traumatic wound dressing according to claim 1, wherein, One side of the fixed frame (4) is provided with a mounting hole, and the inside of the mounting hole is provided with a switch cover (17).

9. The post-traumatic wound dressing according to claim 1, wherein, The inside of the grid channel, close to the liquid inlet hole, is fixedly connected with a one-way valve (18).

10. The post-traumatic wound dressing according to claim 1, wherein, The lower end of each medicine injection tube (3) is fixedly connected with a silica gel ring (19).

Citation Information

Patent Citations

  • Receptor area wound surface protection device after leucoderma epidermis transplantation

    CN213373004U