A device for applying ointment to broken skin
By designing the scabbing and cleaning unit and the scabbing and disassembly unit of the application equipment, the problems of residual scale affecting drug efficacy and long direct viewing time for nursing staff were solved. This standardized the cleaning and disinfection of scale during the application process, and improved the efficiency and safety of nursing operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
- Filing Date
- 2026-06-25
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, residual scales on skin disease patients can lead to poor adhesion of wet dressings when applying medication, affecting the efficacy of the medication. In addition, nursing staff may spend too much time directly looking at the ulcers, resulting in improper operation.
Design a device for applying medication to broken skin, integrating an application and cleaning unit and a collection and disassembly unit. The application and cleaning rod cleans scales during the application process, and a T-shaped release rod reminds users of the disinfection steps, thus standardizing the operating procedure.
It enables automatic removal of scales during medication application, improves the adhesion of wet compresses, reduces the time nurses spend looking directly at the medication, ensures standardized disinfection procedures, and improves operational standardization.
Smart Images

Figure CN122479290A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical devices, specifically to an application device for damaged skin. Background Technology
[0002] Nursing staff routinely use cotton swabs to administer medication to wounds of patients with skin diseases. When scaling occurs at the affected area, the residual scales can cause poor adhesion of wet dressings. Because wet dressings can lock in the medication and prevent it from drying out quickly, thus prolonging its efficacy, clinical practice generally follows the sequence of applying medication first, followed by wet dressing. In light of these existing problems, this project will focus on researching a method for simultaneously applying medication and removing scales. Summary of the Invention
[0003] The present invention aims to provide a device for applying medication to damaged skin, which can clean up scales while applying medication.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A wiping device for broken skin, comprising a handle, a tube body, and a wiping mechanism, wherein the tube body is connected to the handle and the wiping mechanism is located within the tube body; the wiping mechanism includes a wiping and cleaning unit and a wiping head removal unit, wherein the wiping head removal unit includes a wiping box connected to the inner wall of the tube body, one end of the wiping box being an inclined surface with a wiping port at the inclined surface; the wiping and cleaning unit includes a wiping and cleaning plate, a wiping and cleaning rod, a wiping and cleaning head, and a connection reminder part, wherein the wiping and cleaning plate is connected to the tube body and has a spiral groove, the wiping and cleaning rod being movable along the spiral groove, and the wiping and cleaning head being connected to the wiping and cleaning rod; the connection reminder part includes a release element and two connecting elements. The release mechanism includes a T-shaped release rod and a release spring. The release spring can drive the T-shaped release rod to reset. The wiping and cleaning rod has a T-shaped groove and a sliding groove. The T-shaped release rod is slidably set in the T-shaped groove, and the end of the T-shaped release rod is located at the end of the wiping and cleaning rod. Each connector includes a wedge and a connecting spring. The wedge is slidably connected to the sliding groove, and there is a gap between the wedge and the sliding groove. The side wall of the sliding groove has a groove, and the wedge has a protrusion. The wiping and cleaning head has a U-shaped narrowing groove, and the side wall of the U-shaped narrowing groove has a wedge groove. The T-shaped release rod and the connecting spring cooperate to drive the wedge to slide out of the sliding groove and then lock into the wedge groove. After the wiping and cleaning head passes the inclined surface of the chip collection box, the wedge exits from the wedge groove and the protrusion locks into the groove.
[0005] The beneficial effects of this solution are as follows: When applying medication to patients, nurses first connect the application head to the application rod, then squeeze the ointment onto the application head. The nurse holds the handle and places the tube on the skin to be treated, such as an arm ulcer. The application rod moves along the spiral groove to apply the medication from the inside out to the skin ulcer. During the application process, the application head can also push some scales into the collection box, thereby improving the adhesion of the subsequent wet dressing. In addition, automatic medication application helps reduce the time nurses spend directly viewing the ulcer.
[0006] As the cleaning head passes the inclined surface of the cleaning box, it moves relative to the cleaning rod, causing the wedge to exit from the wedge groove. Then, the protrusion engages in the groove, at which point the cleaning head and the cleaning rod are disconnected. When the cleaning head passes the cleaning port, it falls into the cleaning box, completing the medication application for one patient. During the removal of the tube, the cleaning rod resets.
[0007] Before applying medication to the next patient, a new application head and cleaning rod need to be connected. Because the protrusion on the wedge is already engaged in the groove, the application head and cleaning rod cannot be directly connected. Therefore, pulling the T-shaped release lever is necessary to move the wedge and release the groove's restriction on the protrusion, allowing the wedge to slide out of the groove and connect the application head and cleaning rod. Pulling the T-shaped release lever serves as a clear behavioral reminder. Before assembling the application head, the end face of the cleaning rod, the end face of the tube, and the debris collection box need to be disinfected. This standardizes the operating procedure and ensures efficient operation. Standardization prevents the omission of disinfection steps due to human error. When new nursing staff first operate the equipment, pulling the T-shaped release lever provides a direct and noticeable pause, proactively reminding them to complete the disinfection process. This shifts from a conscious reminder to a standard operating procedure, eliminating reliance on staff remembering to disinfect on the spot. Instead, the pull-operated design makes pre-assembly disinfection a standard prerequisite for changing the cleaning head. Even if staff become more proficient and less aware of the reminders, they cannot skip the pull step and proceed directly to assembly. Over time, this fosters a fixed work habit of disinfecting first and then assembling, transforming ad-hoc reminders into deeply ingrained, routine operating procedures.
[0008] Furthermore, the coating and dust removal unit also includes an upper guide plate, which is also provided with a spiral groove. A rotating motor is slidably arranged in the spiral groove. A sprocket and a chain running around the sprocket are rotatably arranged in the spiral groove of the coating and dust removal plate. The chain includes several chain links and connecting pins connecting adjacent chain links. One of the connecting pins is provided with a through hole. The coating and dust removal rod passes through the through hole and is connected to the rotating motor. The coating and dust removal rod is rotatably connected to the through hole.
[0009] Furthermore, the spiral groove sidewall of the upper guide plate is provided with a friction layer, and the rotating motor contacts the friction layer.
[0010] Furthermore, the coating and cleaning unit also includes a lower guide plate, which is also provided with a spiral groove for guiding the middle part of the coating and cleaning rod.
[0011] Furthermore, an installation frame is welded to the inner wall of the pipe, and the chip collection box is detachably connected to the installation frame. The end face of the installation frame is also provided with an inclined surface that connects with the inclined surface of the chip collection box.
[0012] Furthermore, the bottom surface of the chip collection box is inclined. Attached Figure Description
[0013] Figure 1 This is a three-dimensional diagram of the present invention; Figure 2 This is a cross-sectional view of the tube body of the present invention; Figure 3 This is a top view of the cleaning and dust removal plate of the present invention; Figure 4 A 3D diagram of the sprocket and chain; Figure 5 for Figure 2 A magnified view of a section at point A in the middle; Figure 6 for Figure 5 A magnified view of a section at point B in the middle; Figure 7 for Figure 5 A schematic diagram showing the removal of lint from the coating after the coating has moved up.
[0014] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: handle 1, tube body 2, chip collection box 3, inclined surface 4, coating chip removal plate 5, coating chip removal rod 6, coating chip removal head 7, spiral groove 8, sprocket 9, chain 10, through hole 11, support plate 12, T-shaped release rod 13, wedge block 14, groove 15, wedge groove 16. Detailed Implementation
[0015] Example The basic implementation examples are as follows: Figure 1-7 As shown, Figure 1 The illustrated application device for broken skin includes a handle 1, a tube 2, and an application mechanism. The tube 2 is integrally formed with the handle 1. The handle 1 has a switch button. The application mechanism is located inside the tube 2. The tube 2 can be made of a transparent material. Figure 2 As shown, the coating mechanism includes a coating chip removal unit and a chip collection and removal unit. The chip collection and removal unit includes a chip collection box 3. An installation frame is welded to the inner wall of the tube body 2. The chip collection box 3 is detachably connected to the installation frame. One end of the chip collection box 3 is a slope 4, and a chip collection port is opened at the slope 4. The bottom surface of the chip collection box 3 is inclined. The end face of the installation frame is also provided with a slope 4 that connects with the slope 4 of the chip collection box 3. That is, the slope 4 of the chip collection box 3 and the slope 4 of the installation frame are smoothly transitioned.
[0016] The coating cleaning unit includes a coating cleaning plate 5, a coating cleaning rod 6, a coating cleaning head 7, an upper guide plate, a lower guide plate, and a connecting reminder part. The upper guide plate, coating cleaning plate 5, and lower guide plate are sequentially connected to the pipe body 2, for example, by welding. The upper guide plate, coating cleaning plate 5, and lower guide plate all have openings such as... Figure 3 The spiral grooves 8 shown have different widths.
[0017] A friction layer, such as a rubber layer, is bonded to the sidewall of the spiral groove 8 of the upper guide plate. A rotating motor is slidably installed inside the spiral groove 8, meaning that the housing of the rotating motor is in contact with the friction layer; for example... Figure 3 As shown, a sprocket 9 and a chain 10 that rotates around the sprocket 9 are rotatably disposed within the spiral groove 8 of the coating cleaning plate 5. Figure 4 As shown, the chain 10 includes several chain links and connecting pins connecting adjacent chain links, one of which has a through hole 11, as shown. Figure 2 As shown ( Figure 2 The upper end of the wiping and cleaning rod 6 (omitting sprocket 9 and chain 10) is connected to the output shaft of the rotating motor through the through hole 11, for example, through a coupling or welding. The wiping and cleaning rod 6 is rotatably connected to the through hole 11. The wiping and cleaning head 7 is connected to the lower end of the wiping and cleaning rod 6. The spiral groove 8 on the lower guide plate is used to guide the middle part of the wiping and cleaning rod 6. The wiping and cleaning rod 6 can be made by splicing and welding two halves. Multiple sprockets 9 can be set and distributed at both ends and the middle position of the spiral groove 8. The sprocket 9 in the middle position can separate the chain 10. The wiping and cleaning plate 5 has support plates 12 reserved on the upper and lower parts. The sprocket 9 is interference-fitted with a pin and is rotatably connected to the support plate 12. The wiping and cleaning plate 5 at one end of the spiral groove 8 is also equipped with a drive motor, and the pin is connected to the output shaft of the drive motor. Pressing the switch button on the handle 1 once will drive the motor to rotate forward and rotate the motor. Pressing it twice will stop the motor and drive the motor to rotate in reverse and then stop.
[0018] like Figure 5 , 6 As shown, the connection reminder part includes a release component and two connecting components. The release component includes a T-shaped release rod 13 and a release spring. The coating cleaning rod 6 has a T-shaped groove and a sliding groove. The T-shaped release rod 13 is slidably disposed in the T-shaped groove, and the end of the T-shaped release rod 13 is located at the end of the coating cleaning rod 6. The release spring is connected and disposed between the T-shaped release rod 13 and the T-shaped groove, and the release spring can drive the T-shaped release rod 13 to return to its original position. Each connecting component includes a wedge 14 and a connecting spring. The connecting spring is connected and disposed between the wedge 14 and the sliding groove. The slide is slidably connected with a gap between the wedge 14 and the slide. A groove 15 is formed on the side wall of the slide. A protrusion is welded onto the wedge 14. The coating and shaving head 7 has a U-shaped narrowing groove, and a wedge groove 16 is formed on the side wall of the U-shaped narrowing groove. Pulling down the T-shaped release rod 13 causes it to abut against the wedge 14. Under the action of the connecting spring, the wedge 14 slides out of the slide. When assembling a new coating and shaving head 7, the wedge 14 can be inserted into the wedge groove 16 to connect the coating and shaving head 7 with the coating and shaving rod 6. After the coating and shaving head 7 passes the inclined surface 4 of the shaving box 3, as... Figure 7 As shown, the wiping and cleaning head 7 moves upward, causing the wedge 14 to retract from the wedge groove 16 and the protrusion to engage with the groove 15.
[0019] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A device for applying ointment to damaged skin, characterized in that: The device includes a handle, a tube body, and an application mechanism. The tube body is connected to the handle, and the application mechanism is located inside the tube body. The application mechanism includes an application and cleaning unit and a chip collection and removal unit. The chip collection and removal unit includes a chip collection box connected to the inner wall of the tube body, with one end of the box being an inclined surface and a chip collection port at the inclined surface. The application and cleaning unit includes an application and cleaning plate, an application and cleaning rod, an application and cleaning head, and a connection reminder part. The application and cleaning plate is connected to the tube body and has a spiral groove. The application and cleaning rod can rotate along the spiral groove, and the application and cleaning head is connected to the application and cleaning rod. The connection reminder part includes a release element and two connecting parts. The release element includes a T-shaped release rod and a release spring. The release spring can drive the T-shaped release rod to reset. The coating and cleaning rod has a T-shaped groove and a sliding groove. The T-shaped release rod is slidably set in the T-shaped groove and the end of the T-shaped release rod is located at the end of the coating and cleaning rod. Each connector includes a wedge and a connecting spring. The wedge is slidably connected to the sliding groove and there is a gap between the wedge and the sliding groove. The side wall of the sliding groove has a groove and the wedge has a protrusion. The coating and cleaning head has a U-shaped narrowing groove and the side wall of the U-shaped narrowing groove has a wedge groove. The T-shaped release rod and the connecting spring cooperate to drive the wedge to slide out of the sliding groove and then lock into the wedge groove. After the coating and cleaning head passes the inclined surface of the chip collection box, the wedge exits from the wedge groove and the protrusion locks into the groove.
2. The application device for damaged skin according to claim 1, characterized in that: The wiping and cleaning unit also includes an upper guide plate, which is also provided with a spiral groove. A rotating motor is slidably arranged in the spiral groove. A sprocket and a chain running around the sprocket are rotatably arranged in the spiral groove of the wiping and cleaning plate. The chain includes several chain links and connecting pins connecting adjacent chain links. One of the connecting pins is provided with a through hole. The wiping and cleaning rod passes through the through hole and is connected to the rotating motor. The wiping and cleaning rod is rotatably connected to the through hole.
3. The application device for damaged skin according to claim 2, characterized in that: The spiral groove sidewall of the upper guide plate is provided with a friction layer, and the rotating motor contacts the friction layer.
4. The application device for damaged skin according to claim 3, characterized in that: The coating and cleaning unit also includes a lower guide plate, which is also provided with a spiral groove for guiding the middle part of the coating and cleaning rod.
5. The application device for damaged skin according to claim 4, characterized in that: The inner wall of the pipe is welded with an installation frame. The chip collection box is detachably connected to the installation frame. The end face of the installation frame is also provided with an inclined surface that connects with the inclined surface of the chip collection box.
6. The application device for damaged skin according to claim 5, characterized in that: The bottom surface of the chip collection box is inclined.