Negative pressure adjusting mechanism and wound treatment device

Abstract

The invention relates to the technical field of negative pressure suction, and discloses a negative pressure adjusting mechanism and a wound treatment device. The negative-pressure assembly comprises a suction part, a negative-pressure component and a negative-pressure component, the rotating piece can rotate relative to the attraction piece; the rotating piece is provided with a connecting part; one end of the connecting part is used for connecting negative pressure equipment; the rotating piece can rotate in the first direction and the second direction, and along with rotation of the rotating piece, the other end of the connecting part communicates with different negative pressure channels. Wherein the first direction and the second direction are opposite in the circumferential direction of the rotating part. The wound treatment device comprises negative pressure equipment and the negative pressure assembly in the first aspect. And one end of the negative pressure assembly is connected with negative pressure equipment. By means of the technical scheme, the technical problem that in the related technology, the negative pressure strength cannot be adjusted in the sore surface cleaning process can be solved.

Description

Technical Field

[0001] The present invention relates to the field of negative pressure suction technology, and in particular to a negative pressure regulating mechanism and a wound treatment device. Background Art

[0002] In the wound cleaning operation, the negative pressure intensity of some negative pressure equipment cannot be adjusted. Different patients' wounds require different negative pressure intensities. Too little negative pressure will not work, and too much negative pressure will cause secondary damage to the wound. According to the different injuries of different patients, different negative pressure intensities need to be used to better adapt to the wound cleaning. Summary of the invention

[0003] The invention discloses a negative pressure regulating mechanism and a wound treatment device, so as to solve the technical problem that the negative pressure intensity cannot be adjusted during the wound surface cleaning process in the related art.

[0004] In order to solve the above problems, the present invention adopts the following technical solutions: In a first aspect, a negative pressure regulating mechanism is disclosed, comprising: A suction member having a plurality of negative pressure channels with different diameters; An installation pipeline, wherein the suction member is arranged in the installation pipeline; A rotating member, rotatable relative to the attracting member; the rotating member has a connecting portion; One end of the connecting portion is used to connect to the negative pressure device; the rotating member can rotate along the first direction and the second direction; A driving member is slidably sleeved on the outer wall of the rotating member, and the driving member is connected to the mounting pipe through an elastic connecting member. Each time the driving member moves downward, it can drive the rotating member to rotate a specified angle along the first direction, so that the other end of the connecting portion is connected to different negative pressure channels; The first direction and the second direction are opposite directions of the circumference of the rotating member, and in the first direction, the diameter of the negative pressure channel decreases successively.

[0005] Preferably, the rotating member is rotatably arranged at one end of the installation pipe along the axial direction of the installation pipe; The connecting portion includes a main channel, a first branch channel and a plurality of second branch channels; One end of the main channel is used to connect to the negative pressure device, and the other end is connected to the first branch channel and a plurality of the second branch channels; The rotating member rotates along the first direction or the second direction, and a plurality of the second branch channels (213) are closed or opened in sequence.

[0006] Preferably, the driving member comprises a sliding sleeve, the sliding sleeve is arranged on the side wall of the rotating member, a pressure column is arranged at the bottom of the sliding sleeve, a connecting sleeve is also arranged on the sliding sleeve, a rotating disk is rotatably connected to the mounting tube, one end of the elastic connecting member is connected to the connecting sleeve, and the other end is connected to the rotating disk; A plurality of pressure blocks corresponding to the number of negative pressure channels are provided on the side wall of the rotating member, and an arc-shaped inclined surface is provided at the bottom of the pressure block, and the inclined surface gradually increases along the first direction. The bottom of the pressure column is opposite to the highest point of the inclined surface. When the pressure column moves downward, it can squeeze the inclined surface to drive the rotating member to rotate a specified angle in the first direction.

[0007] Preferably, a plurality of the second branch channels are respectively provided with valve members, and a side of the rotating member corresponding to the plurality of the second branch channels is also respectively provided with a hidden space; The valve member is movable within the second branch channel and the hidden space to open or close the second branch channel.

[0008] Preferably, the rotating member includes a rotating disk and an annular cylinder; the connecting portion and the hidden space are arranged on the rotating disk; The rotating disk and the annular cylinder are configured to have a limited state and a moving state; When in the limited position state, the annular cylinder rotates synchronously with the rotating disk and can drive the valve member to move; When in a moving state, the annular cylinder can rotate relative to the rotating disk; As the rotating disk rotates along the first direction or the second direction, the rotating disk and the annular cylinder can switch between a restricted state and a moving state.

[0009] Preferably, the annular cylinder is provided with a slide groove, and the slide groove has a sliding portion and a limiting portion; The limiting portion is arranged at the front end of the sliding portion; The rotating disk has a protrusion, and the protrusion can move along the sliding portion and stop at the limiting portion; A limiting piece is disposed on the inner wall of the installation pipe; when the turntable rotates along the first direction, the limiting piece and the annular cylinder are stopped and limited, so that the protrusion can be separated from the limiting portion.

[0010] Preferably, the limiting member includes a pawl and an elastic member; The ratchet is rotatably arranged on the inner wall of the installation pipe through an elastic member; The outer wall of the annular cylinder is provided with ratchet teeth cooperating with the ratchet pawl; Wherein, the pawl and the ratchet are configured such that when the rotating disk rotates to a preset position along a first direction, the pawl and the ratchet are stopped and limited.

[0011] Preferably, the circumferential wall of the rotating disk has a through groove; the outer side of the valve member has external teeth, and the external teeth can move in the through groove; The inner wall of the annular cylinder is provided with internal teeth, and as the annular cylinder rotates, the internal teeth mesh with the external teeth of different valve members.

[0012] In another aspect, a wound treatment apparatus is disclosed, comprising a negative pressure device and the negative pressure assembly of the first aspect; One end of the negative pressure component is connected to the negative pressure device.

[0013] The technical solution adopted by the present invention can achieve the following beneficial effects: 1. The negative pressure assembly of the present application, in the operation of cleaning the wound surface, connects one end of the connecting part to the negative pressure device, and the operator can rotate the rotating part to make the other end of the connecting part communicate with the negative pressure channels of different diameters. Since the diameters of the negative pressure channels are different, the negative pressure intensity can be changed by switching the negative pressure channels of different diameters to adapt to the cleaning of wound surfaces of different patients.

[0014] 2. The present invention converts the up and down pressing action into the rotational motion of the rotating part, which not only realizes efficient switching of functions, but also brings the following significant benefits: Intuitive operation logic: The up and down pressing action is an operation method that users are very familiar with, and almost no additional learning cost is required. By pressing the sliding sleeve and combining it with the rotation action, users can easily complete complex channel switching without having to remember complex rotation directions or forces. Reduce misoperation: Traditional rotation operations may require users to accurately control the rotation angle or direction, while this solution triggers rotation through a pressing action, avoiding misoperation caused by excessive or insufficient rotation, and improving the accuracy and reliability of the operation. High space utilization: Modular design: The retractable structure and inclined design of the pressure column enable the entire device to complete complex mechanical conversion in a limited space, which is convenient for integration with other components and adapting to different application scenarios. Clear switching perception: When the pressure column contacts the pressure block and completes the switch, the user can feel clear feedback through touch to confirm that the switch is in place. This tactile feedback mechanism significantly improves the user experience, especially in scenarios where frequent channel switching is required. Avoid excessive operation: Quick switching: By pressing the sliding sleeve to trigger the movement of the rotating part, the user can complete channel switching in a short time without complicated rotating movements or additional tool assistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting sleeve after cutting of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention without the connecting sleeve; Figure 4 It is a schematic diagram of the front three-dimensional structure of the present invention; Figure 5 The present invention is Figure 4 Axonometric drawing after AA cutting; Figure 6 is a partial cross-sectional view of the present invention; Figure 7 is a partial axonometric view of the attracting member of the present invention; Figure 8 is a partial axonometric view of the rotating member of the present invention; Fig. 9 yes Figure 8 The enlarged view of point A in the middle; Fig.10 It is a cross-sectional view of the turntable of the present invention Figure 1 ; Fig.11 is a top view of the turntable of the present invention; Fig.12 The axonometric measurement of the annular cylinder of the present invention is Figure 1 ; Fig.13 The axonometric measurement of the annular cylinder of the present invention is Figure 2 ; Fig.14 is a cross-sectional view of the present invention; Fig.15 yes Fig.14 The enlarged view of point B in the middle; Fig.16 It is a cross-sectional view of the turntable of the present invention Figure 2 ; Fig.17 It is a schematic diagram of the structure of the valve components; Fig.18 It is a schematic diagram of the three-dimensional structure after the pressing column of the present invention is rotated to one side of the pressing block; Fig.19 It is a schematic diagram of the cross-sectional structure of the compression column of the present invention.

[0017] In the figure: 100, suction member; 110, negative pressure channel; 200, rotating member; 210, connecting part; 211, main channel; 212, first branch channel; 213, second branch channel; 220, turntable; 221, through groove; 222, hidden space; 223, protrusion; 230, annular cylinder; 231, sliding part; 232, limiting part; 233, ratchet; 234, inner teeth; 240, valve member; 241, outer teeth; 242, telescopic structure; 300, installation pipeline; 310, limiting member; 311, ratchet; 312, elastic member; 400, driving member; 401, sliding sleeve; 402, pressure column; 4021, spring; 4022, arc surface; 403-rotating disk; 404, elastic connecting member; 405, pressure block; 406, inclined surface. DETAILED DESCRIPTION

[0018] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0019] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0020] The following is combined with Figures 1 to 18 and Fig.19 , a negative pressure regulating mechanism and a wound treatment device provided by the present application are described in detail through specific embodiments and their application scenarios.

[0021] Some embodiments of the present application provide a negative pressure regulating mechanism, including a suction member 100 , a rotating member 200 , a mounting pipe 300 , a limiting member 310 and a driving member 400 .

[0022] like Figure 7As shown, the suction member 100 has a plurality of negative pressure channels 110 with different diameters. The negative pressure channel 110 with a larger diameter allows more air to flow, so that under the same negative pressure source, the negative pressure intensity that may be generated will be relatively low. On the contrary, the negative pressure channel 110 with a smaller diameter will restrict the air flow, thereby generating a higher negative pressure intensity under the same negative pressure source. Therefore, by switching different negative pressure channels 110, the negative pressure intensity of the entire suction member 100 can be changed.

[0023] like Figure 5 , Figure 6 and Fig.14 As shown, the suction member 100 is disposed in the installation pipe 300; like Figure 6 As shown, the rotating member 200 can rotate relative to the suction member 100, and the rotating member 200 has a connecting portion 210, one end of which is used to connect with the negative pressure device. In addition, the rotating member 200 can rotate along the first direction and the second direction, and as the rotating member 200 rotates, the other end of the connecting portion 210 is connected to different negative pressure channels 110.

[0024] When switching different negative pressure channels 110, the operator can rotate the rotating part 200 to connect the other end of the connecting part 210 with the negative pressure channels 110 of different diameters, and then adjust the negative pressure strength of the suction part 100 to adapt to the sore surface cleaning of different patients.

[0025] The driving member 400 is slidably mounted on the outer wall of the rotating member 200, and the driving member 400 is connected to the installation pipe 300 through an elastic connecting member 404. Every time the driving member 400 moves downward, it can drive the rotating member 200 to rotate a specified angle along the first direction, so that the other end of the connecting portion 210 is connected to a different negative pressure channel 110; the driving member 400 includes a sliding sleeve 401, which is slidably mounted on the side wall of the rotating member 200, a pressure column 402 is provided at the bottom of the sliding sleeve 401, and a connecting sleeve is also provided on the sliding sleeve 401. A rotating disk 403 is rotatably connected to the mounting tube, one end of the elastic connecting member 404 is connected to the connecting sleeve, and the other end is connected to the rotating disk 403; a plurality of pressing blocks 405 corresponding to the number of the negative pressure channels 110 are provided on the side wall of the rotating member 200, and an arc-shaped inclined surface 406 is provided at the bottom of the pressing block 405, and the inclined surface 406 gradually increases in height along the first direction, and the bottom of the pressing column 402 is opposite to the highest point of the inclined surface 406. When the pressing column 402 moves downward, it can squeeze the inclined surface 406 to drive the rotating member 200 to rotate a specified angle in the first direction.

[0026] In this solution, it should be particularly noted that the pressure column 402 is designed as a retractable structure 242, such as Fig.19As shown. Specifically, the pressure column 402 adopts a two-stage structure, one section of which is embedded in the other section and connected by a spring 4021. This design enables the pressure column 402 to be retracted a certain distance in the height direction, so as to adapt to different operating requirements. In addition, the bottom of the pressure column 402 is designed as an arc surface 4022, and its position is slightly lower than the highest point of the pressure block 405, so that it can accurately contact the inclined surface 406 of the pressure block 405 during operation. In order to enable the user to operate the rotating member 200 to rotate more conveniently, this solution specially designs a driving member 400. When it is necessary to rotate in the first direction to switch different negative pressure channels 110, the operator can start the switching process by pressing the sliding sleeve 401 downward. The specific operation is as follows: when the sliding sleeve 401 is pressed downward, the sliding sleeve 401 will drive the pressure column 402 to move downward. Since the bottom of the pressure column 402 contacts the inclined surface 406 of the pressure block 405, the inclined surface 406 will first apply an extrusion force to the pressure column 402. Since the pressure column 402 is a retractable structure 242, when it is subjected to extrusion force, the pressure column 402 will automatically shrink to adapt to the shape of the inclined surface 406. When the pressure column 402 completes the shrinkage, the operator continues to press the sleeve 401 downward, and the pressure column 402 will apply vertical downward pressure to the inclined surface 406. The function of the inclined surface 406 is to decompose the vertical downward pressure into a component force along the first direction, thereby pushing the pressure block 405 to drive the rotating member 200 to rotate along the first direction to complete the channel switching. When the rotating member 200 successfully switches to another channel, the pressure column 402 will contact the leftmost end of the corresponding pressure block 405, indicating that the switching operation has been completed. At this time, the operator can stop pressing the sleeve 401, and the sleeve 401 will automatically reset under the action of the elastic connector 404. After resetting, the bottom of the pressure column 402 will be located on one side of the end of the other pressure block 405 (such as Figure 8As shown), rather than above the highest point of the pressing block 405. If it is necessary to continue switching to the next channel, the operator can rotate the sleeve 401 in the opposite direction (second direction). At this time, the arc surface 4022 at the bottom of the pressing column 402 will be squeezed by the leftmost extrusion force at the top of the pressing block 405, causing the pressing column 402 to shrink again. This contraction action enables the pressing column 402 to avoid the pressing block 405 and rotate to the top of the pressing block 405 corresponding to the next channel. The operator continues to press the sleeve 401 downward to complete the switching of the next channel. When rotating in the second direction, the staff can directly rotate the rotating member 200 in the second direction without additionally pressing the sleeve 401. This design not only simplifies the operating steps, but also improves the switching efficiency, ensuring that the user can quickly and accurately complete the switching of the negative pressure channel 110. By converting the up and down pressing action into the rotational motion of the rotating member, this solution not only achieves efficient functional switching, but also brings the following significant benefits: intuitive operating logic: the up and down pressing action is an operation method that users are very familiar with, and almost no additional learning cost is required. By pressing the sleeve and combining it with a rotating action, users can easily complete complex channel switching without having to remember complex rotation directions or forces. Reduce misoperation: Traditional rotation operations may require users to precisely control the rotation angle or direction, while this solution triggers rotation through a pressing action, avoiding misoperation caused by excessive or insufficient rotation, and improving the accuracy and reliability of the operation. High space utilization: Modular design: The retractable structure and inclined design of the pressure column enable the entire device to complete complex mechanical conversions in a limited space, making it easy to integrate with other components and adapt to different application scenarios. Clear switching perception: When the pressure column contacts the pressure block and completes the switch, the user can feel clear feedback through touch to confirm that the switch is in place. This tactile feedback mechanism significantly improves the user experience, especially in scenarios where frequent channel switching is required. Avoid excessive operation: Quick switching: By pressing the sleeve to trigger the movement of the rotating part, users can complete channel switching in a short time without complex rotation actions or additional tool assistance.

[0027] The first direction is as follows Figure 7 As shown in O1, the second direction is Figure 7 As shown in O2.

[0028] In this embodiment, the rotating disk 220 and the end of the suction member 100 are in abutment with each other, so that the negative pressure channel 110 and the connecting portion 210 are better connected.

[0029] As a preferred embodiment of the present invention, the negative pressure device is connected to the connecting portion 210 via a rotary joint. In this way, when the rotating member 200 is rotated, the rotary joint will rotate relative to the rotating member 200, thereby preventing the pipeline of the negative pressure device from rotating.

[0030] like Figure 7 As shown, in the first direction, the diameter of the negative pressure channel 110 decreases successively. By decreasing the diameter of the negative pressure channel 110 successively in the first direction, when the operator rotates the rotating member 200 in the first direction, the negative pressure strength of the negative pressure member can be gradually increased, which can better meet the use logic in the actual operation process. At the same time, the negative pressure strength gradually increases from small to small, which is not easy to cause damage to the patient's sore surface compared to the method of gradually changing from large to small.

[0031] like Fig.10 As shown, the connection part 210 includes a main channel 211, a first branch channel 212 and a plurality of second branch channels 213; one end of the main channel 211 is used to connect to the negative pressure device, and the other end is connected to the first branch channel 212 and the plurality of second branch channels 213. The first branch channel 212 and the plurality of second branch channels 213 are the main components for connecting the suction member 100. The negative pressure generated by the negative pressure device enters the first branch channel 212 and the plurality of second branch channels 213 through the main pipeline, and finally enters the suction member 100 to clean the patient's sore surface.

[0032] In this embodiment, if Figure 7 and Fig.11 As shown, the sum of the number of the first branch channels 212 and the number of the second branch channels 213 is the same as the number of the negative pressure channels 110 .

[0033] In this embodiment, the diameters of the first branch channel 212 and the plurality of second branch channels 213 are all larger than the diameter of the negative pressure channel 110 with the largest diameter.

[0034] like Figure 6 As shown, the rotating member 200 rotates along the first direction or the second direction, and the plurality of second branch channels 213 are closed or opened in sequence. When all the second channels are opened, the cross-sectional area of ​​the negative pressure channel 110 of the suction member 100 is the largest, and at this time, the negative pressure intensity is the smallest. As the rotating member 200 rotates in the first direction, the plurality of second branch channels 213 are closed in sequence, the cross-sectional area of ​​the negative pressure channel 110 of the suction member 100 gradually decreases, and the negative pressure intensity gradually increases.

[0035] It should be noted that the first branch channel 212 is always open. When the plurality of second branch channels 213 are all closed, as the rotating member 200 rotates in the first direction, the first branch channel 212 can also communicate with the negative pressure channels 110 of different diameters, thereby adjusting the negative pressure strength of the suction member 100 in a wider range.

[0036] like Fig.10 , Fig.16 and Fig.17As shown, several second branch channels 213 are respectively provided with valve components 240, and the rotating component 200 is also respectively provided with hidden spaces 222 on one side corresponding to several second branch channels 213. The valve components 240 can move in the second branch channels 213 and the hidden spaces 222 to open or close the second branch channels 213.

[0037] When the valve member 240 is located in the second branch channel 213, the valve member 240 closes the second branch channel 213; when the valve member 240 is located in the hidden space 222, the second branch channel 213 is opened. In addition, the valve member 240 can move in the second branch channel 213 and the hidden space 222 to switch the state of the second branch channel 213 and control the opening or closing of the second branch channel 213.

[0038] In this embodiment, the valve member 240 has a telescopic structure 242. When the valve member 240 closes the second branch channel 213, the valve member 240 extends; when the valve member 240 opens the second branch channel 213, the valve member 240 shortens to the hidden space 222. Specifically, the telescopic structure 242 of this embodiment is preferably a pleat to achieve the telescopic movement of the valve member 240.

[0039] like Figure 8 As shown, the rotating member 200 includes a rotating disk 220 and an annular cylinder 230. The rotating disk 220 and the annular cylinder 230 are configured to have a restricted state and a moving state.

[0040] When in the limited position state, the annular cylinder 230 rotates synchronously with the rotating disk 220 and can drive the valve member 240 to move. In the limited position state, when the operator rotates the rotating disk 220, the annular cylinder 230 rotates synchronously with the rotating disk 220, and, with the rotation of the annular cylinder 230, the valve member 240 can be driven to move between the second branch channel 213 and the hidden space 222, so that the second branch channel 213 is opened or closed.

[0041] When in the motion state, the annular cylinder 230 can rotate relative to the turntable 220. When all the second branch channels 213 are closed, the turntable 220 and the annular cylinder 230 can be switched from the limited state to the motion state. In the motion state, the operator rotates the turntable 220, and the annular cylinder 230 rotates relative to the turntable 220, that is, the annular cylinder 230 remains stationary. In this way, in the motion state, when the turntable 220 is rotated to adjust the first branch channel 212 to connect different negative pressure channels 110, the annular cylinder 230 will not drive the valve member 240 to move between the second branch channel 213 and the hidden space 222, so that the adjustment range of the suction member 100 is larger.

[0042] In this embodiment, the connecting portion 210 and the hidden space 222 are disposed on the rotating disk 220 .

[0043] In this embodiment, the annular cylinder 230 is rotatably disposed on the turntable 220. In order to keep the annular cylinder 230 stationary, a gap is provided between the inner wall of the annular cylinder 230 and the inner wall of the turntable 220, thereby reducing friction.

[0044] like Fig.14 As shown, as the rotating disk 220 rotates along the first direction or the second direction, the rotating disk 220 and the annular cylinder 230 can switch between the limited state and the moving state. By rotating the rotating disk 220 to switch the limited state and the moving state, the switching between the limited state and the moving state of the rotating disk 220 and the annular cylinder 230 can be made simpler and more convenient.

[0045] like Figure 8 , Fig. 9 , Fig.12 and Fig.13 As shown, the annular cylinder 230 is provided with a slide groove, which has a sliding portion 231 and a limiting portion 232. The limiting portion 232 is arranged at the front end of the sliding portion 231. The rotating disk 220 has a protrusion 223, which can move along the sliding portion 231 and stop at the limiting portion 232.

[0046] In the initial state, the plurality of second branch channels 213 are all open, at which time, the total cross-sectional area of ​​the negative pressure channel 110 of the suction member 100 is the largest, and the negative pressure strength is the smallest. In addition, in the initial state, the protrusion 223 abuts against the limiting portion 232, at which time, the rotating disk 220 and the annular cylinder 230 are in a limiting state, and as the rotating disk 220 rotates along the first direction, the annular cylinder 230 rotates synchronously with the rotating disk 220 due to the abutment and limiting of the protrusion 223 and the limiting portion 232. As the annular cylinder 230 rotates, the plurality of valve members 240 move from the second branch channels 213 to the hidden space 222 in sequence, so that the plurality of second branch channels 213 are closed in sequence, thereby gradually increasing the negative pressure strength of the suction member 100.

[0047] Correspondingly, the protrusion 223 can be separated from the limiting portion 232. When the protrusion 223 is separated from the limiting portion 232, the protrusion 223 can move along the sliding portion 231, and the rotating disk 220 and the annular cylinder 230 are in a moving state.

[0048] In this embodiment, the sliding portion 231 is perpendicular to the axis of the annular cylinder 230 .

[0049] It should be noted that the limiting portion 232 is a limiting space formed by a rubber column disposed on the sliding portion 231 and the front end of the sliding portion 231. When subjected to a certain external force, the rubber column may be deformed.

[0050] like Figure 5 , Figure 6 and Fig.14As shown, the attracting member 100 is disposed in the installation pipe 300, and the rotating member 200 is rotatably disposed at one end of the installation pipe 300 along the axial direction of the installation pipe 300. The installation pipe 300 is a basic member, providing an installation foundation for the assembly of the attracting member 100 and the rotating member 200.

[0051] Specifically, Figure 6 As shown, the turntable 220 is rotatably disposed at one axial end of the installation pipe 300 , and the turntable 220 abuts against an end of the suction member 100 , and the annular cylinder 230 is disposed in the installation pipe 300 .

[0052] In this embodiment, there is a gap between the outer wall of the annular cylinder 230 and the interior of the mounting pipe 300 to reduce friction, so that the annular cylinder 230 can remain stationary relative to the turntable 220 when in motion.

[0053] like Fig.14 and Fig.15 As shown, the inner wall of the installation pipe 300 is provided with a stopper 310. When the rotating disk 220 rotates along the first direction, the stopper 310 and the annular cylinder 230 stop and limit, so that the protrusion 223 can be separated from the limit part 232. When the rotating disk 220 rotates along the first direction, a plurality of second branch channels 213 are gradually closed, and the negative pressure intensity gradually increases. After all the second branch channels 213 are closed, the rotating disk 220 and the annular cylinder 230 just rotate or are about to rotate to the position of the stopper 310. As the rotating disk 220 rotates in the first direction, the stopper 310 and the annular cylinder 230 stop and limit, so that the protrusion 223 can be separated from the limit part 232, thereby switching the rotating disk 220 and the annular cylinder 230 into a moving state. In addition, as the rotating disk 220 continues to rotate in the first direction, the first branch channel 212 can be connected to different negative pressure channels 110 in sequence.

[0054] Specifically, Fig.15 As shown, the limiting member 310 includes a pawl 311 and an elastic member 312, the pawl 311 is rotatably set on the inner wall of the installation pipe 300 through the elastic member 312, and the outer wall of the annular cylinder 230 is provided with a ratchet 233 that cooperates with the pawl 311; wherein the pawl 311 and the ratchet 233 are configured as follows: when the turntable 220 rotates to a preset position along the first direction, the pawl 311 and the ratchet 233 stop and limit.

[0055] When the rotating disk 220 rotates to a preset position along the first direction, the plurality of second branch channels 213 are all closed. At this time, the pawl 311 and the ratchet 233 stop and limit, so that the protrusion 223 can be separated from the limiting portion 232, and then the protrusion 223 can slide along the sliding portion 231, and the first branch channel 212 can be connected to the negative pressure channels 110 of different diameters.

[0056] Accordingly, when the rotating disk 220 rotates in the second direction, when the pawl 311 contacts the ratchet tooth 233, the pawl 311 can rotate, so that the pawl 311 does not stop and limit with the ratchet tooth 233. After the ratchet tooth 233 passes the pawl 311, the elastic member 312 drives the pawl 311 to recover.

[0057] In this embodiment, the elastic member 312 is preferably an elastic sheet.

[0058] It should be noted that the preset position is the position where the ratchet 311 is located when all the second channels 213 are closed.

[0059] like Fig.16 and Fig.17 As shown, the circumferential wall of the turntable 220 has a through groove 221; the outer side of the valve member 240 has an external tooth 241, and the external tooth 241 can move in the through groove 221; the inner wall of the annular cylinder 230 is provided with an internal tooth 234, and as the annular cylinder 230 rotates, the internal tooth 234 engages with the external tooth 241 of different valve members 240.

[0060] As the turntable 220 rotates along the first direction or the second direction, the inner teeth 234 on the inner wall of the annular cylinder 230 respectively mesh with the outer teeth 241 of different valve components 240, so that the plurality of valve components 240 move between the second branch channels 213 and the hidden space 222, thereby closing or opening the plurality of second branch channels 213 in sequence.

[0061] Some embodiments of the present application also disclose a wound treatment device, including a negative pressure device and a negative pressure assembly; one end of the negative pressure assembly is connected to the negative pressure device.

[0062] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0063] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0064] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A negative pressure regulating mechanism, characterized in that: include: The suction member (100) has a plurality of negative pressure channels (110) with different diameters; An installation pipeline (300), wherein the suction member (100) is arranged in the installation pipeline (300); A rotating member (200) capable of rotating relative to the attracting member (100); the rotating member (200) has a connecting portion (210); One end of the connecting portion (210) is used for connecting to a negative pressure device; the rotating member (200) can rotate along a first direction and a second direction; A driving member (400) is slidably sleeved on the outer wall of the rotating member (200), and the driving member (400) is connected to the installation pipe (300) via an elastic connecting member (404). Each time the driving member (400) moves downward, it can drive the rotating member (200) to rotate by a specified angle along the first direction, so that the other end of the connecting portion (210) is communicated with a different negative pressure channel (110); The first direction and the second direction are opposite directions in the circumferential direction of the rotating member (200), and in the first direction, the diameter of the negative pressure channel (110) decreases successively.

2. A negative pressure regulating mechanism according to claim 1, characterized in that: The rotating member (200) is rotatably arranged at one end of the installation pipe (300) along the axial direction of the installation pipe (300); The connecting portion (210) comprises a main channel (211), a first branch channel (212), and a plurality of second branch channels (213); One end of the main channel (211) is used to connect to a negative pressure device, and the other end is connected to the first branch channel (212) and a plurality of the second branch channels (213); The rotating member (200) rotates along the first direction or the second direction, and a plurality of the second branch channels (213) are closed or opened in sequence.

3. A negative pressure regulating mechanism according to claim 2, characterized in that: The driving member (400) comprises a sliding sleeve (401), the sliding sleeve (401) is slidingly mounted on the side wall of the rotating member (200), a pressure column (402) is provided at the bottom of the sliding sleeve (401), a connecting sleeve is further provided on the sliding sleeve (401), a rotating disk (403) is rotatably connected to the mounting tube, one end of the elastic connecting member (404) is connected to the connecting sleeve, and the other end is connected to the rotating disk (403); A plurality of pressure blocks (405) corresponding to the number of negative pressure channels (110) are provided on the side wall of the rotating member (200); an arc-shaped inclined surface (406) is provided at the bottom of the pressure block (405); the inclined surface (406) gradually increases in height along the first direction; the bottom of the pressure column (402) is opposite to the highest point of the inclined surface (406); when the pressure column (402) moves downward, it can squeeze the inclined surface (406) to drive the rotating member (200) to rotate in the first direction by a specified angle.

4. A negative pressure regulating mechanism according to claim 3, characterized in that: A plurality of the second branch channels (213) are respectively provided with valve components (240), and a side of the rotating component (200) corresponding to the plurality of the second branch channels (213) is also respectively provided with a hidden space (222); The valve member (240) is movable within the second branch channel (213) and the hidden space (222), so that the second branch channel (213) is opened or closed.

5. A negative pressure regulating mechanism according to claim 4, characterized in that: The rotating member (200) comprises a rotating disk (220) and an annular cylinder (230); the connecting portion (210) and the hidden space (222) are arranged on the rotating disk (220); The rotating disk (220) and the annular cylinder (230) are configured to have a limited state and a moving state; When in the limited position state, the annular cylinder (230) rotates synchronously with the rotating disk (220) and can drive the valve member (240) to move; When in a moving state, the annular cylinder (230) can rotate relative to the rotating disk (220); As the rotating disk (220) rotates along the first direction or the second direction, the rotating disk (220) and the annular cylinder (230) can switch between a restricted state and a moving state.

6. A negative pressure regulating mechanism according to claim 5, characterized in that: The annular cylinder (230) is provided with a slide groove, wherein the slide groove has a sliding portion (231) and a limiting portion (232); The limiting portion (232) is arranged at the front end of the sliding portion (231); The rotating disk (220) has a protrusion (223), and the protrusion (223) can move along the sliding portion (231) and stop at the limiting portion (232); A limiting member (310) is provided on the inner wall of the installation pipe (300); when the rotating disk (220) rotates along the first direction, the limiting member (310) and the annular cylinder (230) abut against each other to limit the position, so that the protrusion (223) can be separated from the limiting portion (232).

7. A negative pressure regulating mechanism according to claim 6, characterized in that: The limiting member (310) comprises a ratchet (311) and an elastic member (312); The ratchet pawl (311) is rotatably arranged on the inner wall of the installation pipe (300) via an elastic member (312); The outer wall of the annular cylinder (230) is provided with a ratchet tooth (233) that cooperates with the ratchet pawl (311); The pawl (311) and the ratchet (233) are configured such that when the rotating disk (220) rotates along the first direction to a preset position, the pawl (311) and the ratchet (233) stop and limit.

8. A negative pressure regulating mechanism according to claim 5, characterized in that: The circumferential wall of the rotating disk (220) has a through groove (221); the outer side of the valve member (240) has external teeth (241), and the external teeth (241) can move in the through groove (221); The inner wall of the annular cylinder (230) is provided with internal teeth (234), and as the annular cylinder (230) rotates, the internal teeth (234) mesh with the external teeth (241) of different valve components (240).

9. A wound treatment device, characterized in that: Comprising a negative pressure device and a negative pressure assembly according to any one of claims 1 to 9; One end of the negative pressure component is connected to the negative pressure device.

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