Wound medicine applying device

Abstract

The wound medicine applying device comprises a first mounting plate assembly, a second mounting plate assembly, a radial driving mechanism, a piston type medicine cabin, a rotary driving mechanism and a dose regulating and controlling mechanism, and a tail end execution unit comprises a plurality of flexible medicine applying guide pipes which are distributed on the second mounting plate assembly in a circumferential array mode; each catheter is provided with an expandable tube wall with a microporous structure; the radial driving mechanism is used for simultaneously driving all the flexible drug delivery catheters to synchronously and radially displace; the piston type medicine cabin comprises a first chamber and a second chamber which are independent, are respectively used for storing ointment and cleaning liquid, and are communicated with each flexible medicine feeding catheter through a pipeline; the rotation driving mechanism is used for driving the second mounting plate assembly to rotate; the dosage regulation and control mechanism is integrated in the liquid medicine storage and distribution system and used for controlling release of medicine in the first cavity and the second cavity. By means of the wound medicine applying device, effective medicine applying on a deep wound can be achieved, the medicine applying efficiency is improved, and meanwhile the risks of infection and secondary injury can be reduced.

Description

Technical Field

[0001] The present invention particularly relates to wound dressing devices. Background Art

[0002] In clinical practice, sharps injuries are a common occupational injury among healthcare workers. They primarily refer to the disruption of skin integrity caused by contaminated medical sharps (such as injection needles, surgical blades, and glass ampoules) during medical procedures. Based on wound mechanism analysis, wounds caused by surgical blades and glassware typically exhibit deep wound tracts and neat margins, with wound morphology often manifesting as linear or punctate penetrating wounds.

[0003] Existing wound management tools have significant technical limitations. Traditional drug delivery devices (such as cotton swabs, brushes, and simple sprayers) are limited by their structural design, making it difficult to effectively deliver drugs deep into wounds. This delivery method not only suffers from uneven drug distribution but also increases the risk of wound infection due to failure to achieve effective drug concentration. Furthermore, the current "debridement first, then drug delivery" discrete wound management process has significant clinical limitations. First, debridement requires additional instruments (such as cleaning solution cotton swabs), increasing the number of steps and time required. Second, repeated wound contact can cause secondary mechanical damage, impairing wound healing. This non-integrated approach not only reduces clinical efficiency but also increases the risk of cross-infection. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by the present invention is to provide a wound dressing that can effectively administer medicine to deep wounds, improve the efficiency of dressing, and at the same time reduce the risk of infection and secondary injury.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: a wound applicator, comprising: a first mounting plate assembly, on which the operating handle is disposed; a second mounting plate assembly; An end effector unit comprising a plurality of flexible drug delivery tubes circumferentially arrayed on the second mounting plate assembly, each of the tubes having an expandable tube wall with a microporous structure; a radial driving mechanism connected to all the flexible drug delivery tubes and used to simultaneously drive all the flexible drug delivery tubes to synchronously move radially; A piston-type drug chamber, comprising an independent first chamber and a second chamber, for storing ointment and cleaning solution respectively, wherein the first chamber and the second chamber are both connected to each of the flexible drug delivery conduits through a pipeline; a rotation drive mechanism connected to the first mounting plate assembly and configured to drive the second mounting plate assembly to rotate; and A dosage control mechanism is integrated into the drug liquid storage and distribution system and is used to control the release of drugs from the first chamber and the second chamber.

[0006] Furthermore, the radial drive mechanism includes a first rotational power source, a drive disk and a slider, the second mounting plate assembly is provided with a plurality of radially extending guide grooves around the central axis of the drive disk, the top end of each flexible drug delivery catheter is slidably connected to the guide groove through a slider, the drive disk is rotatably connected to the second mounting plate assembly, the first rotational power source is used to drive the drive disk to rotate, and the drive disk is circumferentially spaced with a plurality of arc grooves offset in the same direction and passing through front and back, the arc grooves correspond one to one with the guide grooves, and the slider can slide through the corresponding arc grooves. When the drive disk rotates clockwise, the interaction between the arc grooves and the guide grooves drives the slider and the flexible drug delivery catheter to perform radial movement.

[0007] Furthermore, the rotational drive mechanism includes a second rotational power source and a rotational shaft, the rotational shaft is rotatably connected to the first mounting plate assembly, the second mounting plate assembly is fixed to the end of the rotational shaft, and the second rotational power source is connected to the rotational shaft for driving the rotational shaft to rotate.

[0008] Furthermore, the piston-type medicine capsule is fixed to the first mounting plate assembly, a partition is transversely arranged in the piston-type medicine capsule, the partition divides the inner cavity of the piston-type medicine capsule into the first chamber and the second chamber that are not connected to each other in the upper and lower directions, the rotating shaft can rotatably pass through the piston-type medicine capsule and is rotatably and sealedly connected to the partition, the rotating shaft is a hollow shaft, and a through hole is opened on the rotating shaft to connect to the first chamber and the second chamber, and the bottom end of the rotating shaft is connected to both the first chamber and the second chamber through the pipe; The dosage control mechanism includes a push plate, a guide rod, a first piston plate, a second piston plate and a push rod. The push plate is arranged in the first chamber and is threadedly connected to the rotating shaft. The guide rod is arranged in the first chamber and parallel to the rotating shaft and can slide through the push plate. The first piston plate and the second piston plate are respectively arranged in the first chamber and the second chamber. The push rod is an elastic telescopic rod, which can slide through the first piston plate and the partition in sequence to connect with the second piston. When the rotating shaft rotates, the push plate can push the second piston plate to move toward the second mounting plate assembly through the push rod.

[0009] Furthermore, the push rod includes an elastic member and a sleeve rod and an insertion rod that are inserted into each other. The sleeve rod can be slidably inserted into the first piston plate and the partition plate, and is fixedly connected to the push plate. The insertion rod is fixedly connected to the second piston plate. The elastic member is arranged in the sleeve rod and supported at the end of the insertion rod.

[0010] Furthermore, it also includes a positioning sleeve, which sleeves the flexible drug delivery tube. The end of the positioning sleeve is flush with the end of the flexible drug delivery tube and can be retracted inwardly along the axis.

[0011] Furthermore, the positioning sleeve is sleeved with the second mounting plate assembly, an axially extending through slot is provided on the side wall of the positioning sleeve, and a screw that can slide through the through slot is provided on the side wall of the second mounting plate assembly, and a nut is sleeved on the screw.

[0012] Furthermore, it also includes a liquid suction mechanism, which includes a water pump and a water pipe. The water pump is arranged on the first mounting plate assembly, and the water pipe is connected to the water pump.

[0013] Beneficial effects of the present invention: When the above-mentioned wound coating device is in use, the end effector unit is inserted into the wound when the flexible drug delivery catheter is in a retracted state, and then all the flexible drug delivery catheters are driven outward by the radial drive mechanism to stretch the wound. After moving the corresponding foreign matter such as glass shards, the rotary drive mechanism and the dosage control mechanism are started at the same time. The rotary drive mechanism drives the second mounting plate assembly to rotate, and drives the piston-type drug chamber to rotate. The dosage control mechanism first starts the release of the cleaning liquid in the second chamber. The cleaning liquid enters the flexible drug delivery catheter and is squeezed out from the micropores, and cleans the wound through the outer wall of the drug delivery catheter. After cleaning is completed, the dosage control mechanism starts the release of the ointment in the first chamber. During the rotation of the end effector unit, the flexible drug delivery catheter applies the medicine to the inner wall of the wound.

[0014] By using the above-mentioned wound coating device, since the end effector unit can be inserted into the wound, effective drug delivery to deep wounds can be achieved, the efficiency of coating can be improved and the effectiveness of the drug can be ensured. At the same time, cleaning and coating can be integrated together, and two actions can be achieved through one component, thereby reducing the risk of infection and secondary injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0016] Figure 1 A schematic diagram of a wound dressing device provided in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the positioning sleeve in the wound dressing device shown moving toward the top; Figure 3 for Figure 1 A schematic diagram of the wound dressing device showing a flexible drug delivery conduit in an outwardly expanded state; Figure 4 for Figure 1 Schematic diagram of complete cleansing fluid release from the wound dressing device shown; Figure 5 for Figure 1 A schematic diagram of the wound dressing device showing the application of ointment; Figure 6 for Figure 1 A partial schematic diagram of the installation of the end effector unit and the radial drive mechanism in the wound dressing device shown; Reference numerals: 100. First mounting plate assembly; 110. Operating handle; 200. Second mounting plate assembly; 300. End execution unit; 310. Flexible drug delivery catheter; 320. Micropore; 400. Radial drive mechanism; 410. First rotational power source; 420. Drive disk; 430. Slider; 440. Arc groove; 450. Guide groove; 500. Piston drug chamber; 510. First chamber; 520. Second chamber; 530. Partition; 600. Rotary drive mechanism; 610. Second rotational power source; 620. Rotating shaft; 700. Dosage control mechanism; 710. Push plate; 720. Guide rod; 730. First piston plate; 740. Second piston plate; 750. Push rod; 800. Positioning sleeve; 900. Liquid aspiration mechanism. DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] See Figures 1 to 6 The present invention provides a wound coating device, including a first mounting plate assembly 100, a second mounting plate assembly 200, an end execution unit 300, a radial drive mechanism 400, a piston-type drug chamber 500, a rotary drive mechanism 600 and a dosage control mechanism 700.

[0019] Specifically, the operating handle 110 is disposed on the first mounting plate assembly 100. The end effector 300 comprises a plurality of flexible drug delivery tubes 310 circumferentially arranged in an array on the second mounting plate assembly 200. Each tube has an expandable wall with micropores 320. A radial drive mechanism 400 is connected to all of the flexible drug delivery tubes 310 to simultaneously drive the radial displacement of all of them.

[0020] The piston-type drug chamber 500 includes an independent first chamber 510 and a second chamber 520 for storing cleaning solution and ointment, respectively. Both the first chamber 510 and the second chamber 520 are connected to each flexible drug delivery conduit 310 via a pipe. A rotation drive mechanism 600 is connected to the first mounting plate assembly 100 to drive the second mounting plate assembly 200 to rotate. A dosage control mechanism 700 is integrated into the drug liquid storage and dispensing system to control the release of drugs from the first chamber 510 and the second chamber 520.

[0021] During use, when the flexible drug delivery tube 310 is in a retracted state, the end effector unit 300 is inserted into the wound, and then all the flexible drug delivery tubes 310 are driven outward by the radial drive mechanism 400 to stretch the wound. After moving the corresponding foreign matter such as glass shards, the rotary drive mechanism 600 and the dosage control mechanism 700 are started at the same time. The rotary drive mechanism 600 drives the second mounting plate assembly 200 to rotate, driving the piston-type drug chamber 500 to rotate. The dosage control mechanism 700 first starts the release of the cleaning liquid in the second chamber 520. The cleaning liquid enters the flexible drug delivery tube 310 and is squeezed out from the micropore 320, and cleans the wound through the outer wall of the drug delivery tube. After cleaning is completed, the dosage control mechanism 700 starts the release of the ointment in the first chamber 510. During the rotation of the end effector unit 300, the flexible drug delivery tube 310 applies the medicine to the inner wall of the wound.

[0022] By using the above-mentioned wound coating device, since the end effector unit 300 can be inserted into the wound, effective drug delivery to deep wounds can be achieved, the coating efficiency can be improved and the effectiveness of the drug can be ensured. At the same time, cleaning and coating can be integrated together, and two actions can be achieved through one component, thereby reducing the risk of infection and secondary injury.

[0023] In this embodiment, the radial drive mechanism 400 includes a first rotational power source 410, a drive disk 420, and a slider 430. The second mounting plate assembly 200 defines a plurality of radially extending guide slots 450 around the central axis of the drive disk 420. The top end of each flexible drug delivery catheter 310 is slidably connected to the guide slot 450 via a slider 430. The drive disk 420 is rotatably connected to the second mounting plate assembly 200. The first rotational power source 410 is used to drive the drive disk 420 to rotate. In a specific embodiment, the first rotational power source 410 can be a manual rotation method, a rotary motor, or other equivalent mechanism capable of driving the drive disk 420 to rotate.

[0024] The driving disk 420 is provided with a plurality of arcuate grooves 440 circumferentially spaced apart, which are offset in the same direction and pass through from front to back. The arcuate grooves 440 correspond one-to-one with the guide grooves 450, and the slider 430 can slide through the corresponding arcuate grooves 440. When the driving disk 420 rotates clockwise, the interaction between the arcuate grooves 440 and the guide grooves 450 drives the slider 430 and the flexible drug delivery catheter 310 to move radially, thereby realizing radial outward or inward movement of the flexible drug delivery catheter 310.

[0025] In this embodiment, the rotary drive mechanism 600 includes a second rotary power source 610 and a rotary shaft 620. The rotary shaft 620 is rotatably connected to the first mounting plate assembly 100. The second mounting plate assembly 200 is fixed to the end of the rotary shaft 620. The second rotary power source 610 is connected to the rotary shaft 620 to drive the rotary shaft 620 to rotate. When the rotary shaft 620 rotates, it can also drive the end effector 300 to rotate.

[0026] Similarly, the second rotation power source 610 can be a manual rotation method, a rotation motor or other mechanisms that can drive the rotation shaft 620 to rotate.

[0027] In this embodiment, the piston-type drug capsule 500 is fixed to the first mounting plate assembly 100. A partition 530 is transversely disposed within the piston-type drug capsule 500. The partition 530 divides the interior of the piston-type drug capsule 500 into a first chamber 510 and a second chamber 520 that are not interconnected vertically. A rotating shaft 620 rotatably passes through the piston-type drug capsule 500 and is rotatably and hermetically connected to the partition 530. The rotating shaft 620 is a hollow shaft with through-holes formed therein for connecting to the first chamber 510 and the second chamber 520. The bottom end of the rotating shaft 620 is connected to both the first chamber 510 and the second chamber 520 via a pipe.

[0028] The dosage control mechanism 700 includes a push plate 710, a guide rod 720, a first piston plate 730, a second piston plate 740 and a push rod 750. The push plate 710 is arranged in the first chamber 510 and is threadedly connected to the rotating shaft 620. The guide rod 720 is arranged in the first chamber 510 and is arranged parallel to the rotating shaft 620, and can slide through the push plate 710. The first piston plate 730 and the second piston plate 740 are respectively arranged in the first chamber 510 and the second chamber 520. The push rod 750 is an elastic telescopic rod, which can slide through the first piston plate 730 and the partition 530 in sequence to connect with the second piston. When the rotating shaft 620 rotates, the push plate 710 can push the second piston plate 740 to move toward the second mounting plate assembly 200 through the push rod 750.

[0029] During use, when the rotating shaft 620 rotates, it drives the second mounting plate assembly 200 to rotate, and at the same time drives the push plate 710 to rotate. When the push plate 710 moves downward, the push plate 710 can push the second piston plate 740 toward the second mounting plate assembly 200 through the push rod 750 to squeeze out the cleaning liquid. When the second piston plate 740 moves to the lowest end, the second piston plate 740 stops moving, and the wound is cleaned. As the rotating shaft 620 continues to rotate, the push plate 710 continues to move downward, and the push rod 750 is elastically compressed. When the push plate 710 abuts the first piston plate 730, it can push the first piston plate 730 downward to push the ointment and perform the ointment application operation.

[0030] It should be noted that in a specific embodiment, in the initial state, the distance between the first piston plate 730 and the push plate 710 can be equal to the distance moved by the second piston plate 740. In this way, the ointment can be released without releasing the cleaning liquid. The ointment can be released after the cleaning liquid is released, thereby reducing the waste of the ointment.

[0031] In this embodiment, the push rod 750 includes an elastic member and a sleeve rod and an insert rod that are interlocked. The sleeve rod is slidably engaged with the first piston plate 730 and the partition plate 530 and is fixedly connected to the push plate 710. The insert rod is fixedly connected to the second piston plate 740. The elastic member is disposed within the sleeve rod and supported at the end of the insert rod. The elastic member can be a spring commonly used in the prior art.

[0032] When in use, the method of plugging and adding elastic parts can achieve a telescopic effect, and at the same time play a guiding and lifting role.

[0033] Preferably, the device further includes a positioning sleeve 800, which encloses the flexible drug delivery conduit 310. The end of the positioning sleeve 800 is flush with the end of the flexible drug delivery conduit 310 and can be retracted inward along its axis. During use, the wound depth can be pre-determined, and the end of the positioning sleeve 800 can then be driven back a corresponding distance. When the flexible drug delivery conduit 310 is inserted into the wound, the insertion can be stopped just before the wound surface and the bottom end of the positioning sleeve 800 make contact.

[0034] Specifically, the positioning sleeve 800 is sleeved with the second mounting plate assembly 200. An axially extending through slot is defined on the sidewall of the positioning sleeve 800. A screw that slides through the through slot is provided on the sidewall of the second mounting plate assembly 200. A nut is sleeved on the screw. When the positioning sleeve needs to be moved, the nut can be loosened.

[0035] As a more preferred embodiment, the device further includes a liquid aspiration mechanism 900, which includes a water pump and a water pipe. The water pump is mounted on the first mounting plate assembly, and the water pipe is connected to the water pump. During and after the flushing process, the end of the water pipe can be inserted into the wound and the water pump can be activated to aspirate and discharge the flushing fluid and wound exudate.

[0036] The above wound dressing device is used as follows: During use, the wound depth can be predicted first, and then the position of the positioning sleeve can be adjusted, and the exposed length of the flexible drug delivery catheter 310 can be matched with the wound depth. Then, the end execution unit 300 can be inserted into the wound. Next, the first rotary power source 410 can be started. After the wound is stretched to an appropriate size, the second selection power source can be started to drive the selection shaft to rotate. The cleaning fluid is first released to clean the wound, and then the ointment is released to apply the medicine to the inner wall of the wound. After the ointment is completed, the second rotary power source 610 stops rotating, and the flexible drug delivery catheter 310 is driven backward by the first rotary power source 410, and the end execution unit 300 is taken out. Finally, after the corresponding components are disinfected, the ointment is injected into the first chamber 510 and the cleaning fluid is injected into the second chamber 520, ready for next use.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A wound applicator, characterized in that: include: a first mounting plate assembly, on which the operating handle is disposed; a second mounting plate assembly; An end effector unit comprising a plurality of flexible drug delivery tubes circumferentially arrayed on the second mounting plate assembly, each of the tubes having an expandable tube wall with a microporous structure; a radial driving mechanism connected to all the flexible drug delivery tubes and used to simultaneously drive all the flexible drug delivery tubes to synchronously move radially; A piston-type drug chamber, comprising an independent first chamber and a second chamber, for storing ointment and cleaning solution respectively, wherein the first chamber and the second chamber are both connected to each of the flexible drug delivery conduits through a pipeline; a rotation drive mechanism connected to the first mounting plate assembly and configured to drive the second mounting plate assembly to rotate; and A dosage control mechanism is integrated into the drug liquid storage and distribution system and is used to control the release of drugs from the first chamber and the second chamber.

2. The wound dressing device according to claim 1, characterized in that The radial drive mechanism includes a first rotational power source, a driving disk and a slider. The second mounting plate assembly is provided with a plurality of radially extending guide grooves around the central axis of the driving disk. The top end of each flexible drug delivery catheter is slidably connected to the guide groove through a slider. The driving disk is rotatably connected to the second mounting plate assembly. The first rotational power source is used to drive the driving disk to rotate. The driving disk is circumferentially provided with a plurality of arc grooves that are offset in the same direction and pass through the front and back. The arc grooves correspond one-to-one to the guide grooves. The slider can slide through the corresponding arc grooves. When the driving disk rotates clockwise, the slider and the flexible drug delivery catheter are driven to move radially through the interaction between the arc grooves and the guide grooves.

3. The wound dressing device according to claim 1, characterized in that The rotation drive mechanism includes a second rotational power source and a rotation shaft, the rotation shaft is rotatably connected to the first mounting plate assembly, the second mounting plate assembly is fixed to the end of the rotation shaft, and the second rotational power source is connected to the rotation shaft for driving the rotation shaft to rotate.

4. The wound applicator according to claim 3, characterized in that The piston-type medicine capsule is fixed to the first mounting plate assembly, a partition is transversely arranged in the piston-type medicine capsule, the partition divides the inner cavity of the piston-type medicine capsule into the first chamber and the second chamber that are not connected to each other in the upper and lower directions, the rotating shaft can rotatably pass through the piston-type medicine capsule and is rotatably and sealedly connected to the partition, the rotating shaft is a hollow shaft, and a through hole is opened on the rotating shaft to connect to the first chamber and the second chamber, and the bottom end of the rotating shaft is connected to both the first chamber and the second chamber through the pipe; The dosage control mechanism includes a push plate, a guide rod, a first piston plate, a second piston plate and a push rod. The push plate is arranged in the first chamber and is threadedly connected to the rotating shaft. The guide rod is arranged in the first chamber and parallel to the rotating shaft and can slide through the push plate. The first piston plate and the second piston plate are respectively arranged in the first chamber and the second chamber. The push rod is an elastic telescopic rod, which can slide through the first piston plate and the partition in sequence to connect with the second piston. When the rotating shaft rotates, the push plate can push the second piston plate to move toward the second mounting plate assembly through the push rod.

5. The wound applicator according to claim 4, characterized in that The push rod includes an elastic member and a sleeve rod and an insertion rod that are inserted into each other. The sleeve rod can be slidably inserted into the first piston plate and the partition plate, and is fixedly connected to the push plate. The insertion rod is fixedly connected to the second piston plate. The elastic member is arranged in the sleeve rod and supported at the end of the insertion rod.

6. The wound applicator according to claim 1, characterized in that The invention also comprises a positioning sleeve, wherein the positioning sleeve sleeves the flexible drug delivery tube. The end of the positioning sleeve is flush with the end of the flexible drug delivery tube and can be retracted inwardly along the axis.

7. The wound applicator according to claim 6, characterized in that The positioning sleeve is sleeved with the second mounting plate assembly, an axially extending through slot is provided on the side wall of the positioning sleeve, and a screw rod that can slide through the through slot is provided on the side wall of the second mounting plate assembly, and a nut is sleeved on the screw rod.

8. The wound dressing device according to claim 1, characterized in that It also includes a liquid suction mechanism, which includes a water pump and a water pipe. The water pump is arranged on the first mounting plate assembly, and the water pipe is connected to the water pump.

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