A highly efficient debridement and negative pressure wound treatment device and system

Abstract

The present invention relates to the technical field of wound treatment devices, and discloses a highly efficient debridement and negative pressure wound treatment device and system, comprising: a storage cylinder, a mesh cover at the top of which is fixedly connected to a suction pipe port of an air pump, the air pump is fixedly mounted on the outer wall of the storage cylinder, and the other end of a connecting pipe is fixedly connected to the top side wall of the storage cylinder, and the other end of the connecting pipe is fixedly connected to the end of a negative pressure cylinder, and the negative pressure cylinder is fixedly installed through the end of a first connecting cylinder; and also comprises: a second connecting cylinder, which is coaxially fixedly connected to the outer wall of the first connecting cylinder away from the negative pressure cylinder. The highly efficient debridement and negative pressure wound treatment device and system can automatically clean the wound, thereby improving work efficiency, and during the cleaning process, the wound can be pulled apart to improve the debridement effect, and at the same time, the medicine application operation can be performed after the debridement is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of wound treatment devices, and in particular to a highly efficient debridement and negative pressure wound treatment device and system. Background Art

[0002] During wound treatment, in order to reduce the risk of wound infection caused by pathogens in the outside air, it is necessary to extract the gas near the wound through a negative pressure treatment device. At the same time, the negative pressure treatment device can also suck the pus that may flow out of the wound. However, there are still some problems with the existing negative pressure wound treatment devices:

[0003] For example, a device for applying negative pressure to a wound, with publication number CN104470551A, comprises: a negative pressure source configured to be connected to a dressing, the negative pressure source comprising a voice coil actuator and a diaphragm; and a controller configured to generate a drive signal for the voice coil actuator;

[0004] A negative pressure wound treatment device, system and method with publication number CN109985283B. The negative pressure wound treatment device is connected to a dressing and has a housing, a control circuit board, a pump and a suction line. The pump is used to generate negative pressure. The pump may include a voltage-actuated deformation element (such as a piezoelectric vibration element) to push the fluid from the suction end to the discharge end. The suction line has a pump end and a dressing end. The pump end is fluidically connected to the suction end of the pump;

[0005] The above device is difficult to automatically clean the wound during use, and medical staff are required to manually clean the wound in advance, thereby reducing work efficiency.

[0006] In view of the above problems, it is urgently necessary to carry out innovative designs based on the original negative pressure wound treatment device. Summary of the invention

[0007] The purpose of the present invention is to provide an efficient debridement and negative pressure wound treatment device and system to solve the problem that the existing negative pressure wound treatment device proposed in the above background technology is difficult to automatically clean the wound during use, and medical staff need to manually pre-clean the wound, thereby reducing work efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solutions: a highly efficient debridement and negative pressure wound treatment device, comprising:

[0009] The storage cylinder has a mesh cover at the top thereof fixedly connected to a suction pipe port of an air pump, the air pump is fixedly mounted on the outer wall of the storage cylinder, and the other end of a connecting pipe is fixedly connected to the top side wall of the storage cylinder, and the other end of the connecting pipe is fixedly connected to the end of the negative pressure cylinder, and the negative pressure cylinder is fixedly installed through the end of the first connecting cylinder;

[0010] Also includes:

[0011] The second connecting tube is coaxially fixedly connected to the outer wall of the first connecting tube away from the negative pressure tube, the second connecting tube is horizontally fixedly embedded in the top of the fitting seat for storing disinfectant, a supply mechanism is coaxially arranged on the inner side of the first connecting tube, the supply mechanism comprises an outer plug rod, the rod body of the outer plug rod slides through the end setting of the negative pressure tube, and the plug head of the outer plug rod is fitted on the inner wall of the end of the negative pressure tube, an inner core rod is coaxially fitted and inserted inside the rod body of the outer plug rod, and the end of the liquid medicine plug rod is coaxially fixedly connected on the end surface of the inner core rod, the liquid medicine plug rod slides through the first connecting tube and the second connecting tube, and one end of the liquid medicine plug rod away from the inner core rod slides through the extrusion plug body, and the plug head of the liquid medicine plug rod is fitted on the inner wall of the extrusion plug body, the internal hollow setting of the extrusion plug body is used to store liquid medicine, and the outer wall of the extrusion plug body is fitted on the inner wall of the second connecting tube for extruding disinfectant, and the middle part of the plug head of the liquid medicine plug rod is fixedly connected with the liquid inlet port of the liquid medicine tube;

[0012] A guide platform is slidably embedded in the interior of the fitting seat, a slider is fixedly connected between the top of one side of the guide platform and the bottom surface of the end of the extrusion plug body, and the slider is fit-fitted in the guide groove opened on the fitting seat and the second connecting tube, a transmission mechanism is arranged on the side of the guide platform, and the transmission mechanism includes a cross bar, and the cross bar and the movable frame are slidably embedded on the inner wall of the fitting seat, and the cross bar is horizontally fixedly connected to the top of the movable frame, and a flushing head and a suction head are fixedly embedded on the inner wall of the bottom of the fitting seat.

[0013] Preferably, an adhesive patch is fixedly provided on the outer wall of the bottom of the fitting seat, and corresponding restraining belts are fixedly connected to both sides of the fitting seat, the flushing head is arranged opposite to the suction head, and the top of the suction head is fixedly connected to the lower port of the drain pipe, and the drain pipe is fixedly penetrated through the fitting seat, and the upper port of the drain pipe is fixedly connected to the side wall of the negative pressure cylinder, and the bottom of the fitting seat is made of rubber material, so that the suction head can deliver the flushed disinfectant into the negative pressure cylinder through the drain pipe.

[0014] Preferably, a positioning block is fitted and embedded in the mounting groove at the end of the inner core rod, and a first spring is fixedly connected between the lower end of the positioning block and the inner wall of the inner core rod, the upper end of the positioning block is fitted and inserted on the inner wall of the outer plug rod, and the upper end surface of the positioning block is in contact with the bottom arc-shaped protrusion of the force-bearing tooth, so that the outer plug rod can drive the inner core rod to move through the positioning block.

[0015] Preferably, the force-bearing tooth slides through the side wall of the outer plug rod, the inclined surface of the top tooth of the force-bearing tooth is arranged toward the port of the negative pressure cylinder, and the length of the arc-shaped protrusion at the bottom of the force-bearing tooth is greater than the top length of the positioning block, so that the force-bearing tooth can push the positioning block to move.

[0016] Preferably, a ring is coaxially fixedly connected to the side wall of one end of the medicine liquid plug rod away from the extrusion plug body, and a medicine liquid tube is fixedly installed on the ring and the medicine liquid plug rod, a second spring is fixedly connected between the annular surface of the ring and the inner wall of the first connecting tube, and the second spring is sleeved on the outside of the negative pressure tube, and the ring and the end of the outer plug rod are fitted together, the lower end surface of the limit pin is fitted on the outer wall of the end of the extrusion plug body, and the top of the limit pin and the inner wall of the second connecting tube are elastically connected by a spring, so that the ring can drive the medicine liquid plug rod to move synchronously.

[0017] Preferably, a guide groove is provided on the side wall of the guide platform, and the guide groove has a wavy structure, and a cross bar is fitted on the inner wall of the guide groove away from the side of the movable frame, and symmetrically distributed sliding grooves are provided at both ends of the bottom of the movable frame, and convex shafts corresponding to the push frames are fitted on the inner walls of the sliding grooves, and the two push frames are inclined and slidable through the bottom setting of the fitting seat, so that the guide platform can drive the cross bar to move through the guide groove.

[0018] Preferably, the top of the flushing head is fixedly connected to the lower port of the liquid inlet pipe, and the upper port of the liquid inlet pipe is fixedly installed on the side wall of one end of the second connecting tube close to the first connecting tube, the liquid inlet pipe and the liquid discharge pipe are fixedly installed on both sides of the fitting seat, and a one-way plug is fitted and embedded in the middle pipe of the liquid inlet pipe to form a one-way circulation structure for the disinfectant, and the end face of the one-way plug is elastically connected to the inner wall of the mounting tube on the side wall of the liquid inlet pipe through a spring, so that the disinfectant in the second connecting tube can enter the liquid inlet pipe.

[0019] Preferably, the liquid outlet port of the medicine liquid tube is fixedly connected to the upper part of the side wall of the storage cylinder, and the storage cylinder, the docking tube and the pressure control cylinder are fixedly embedded in the bottom of the fitting seat, and the upper port of the docking tube is fixedly connected to the side wall of the storage cylinder, and the lower port of the docking tube is fixedly connected to the top of the pressure control cylinder, the upper port of the docking tube is arranged opposite to the liquid outlet port of the medicine liquid tube, and a lifting plug is fitted on the top inner wall of the pressure control cylinder, and a pressure spring is fixedly connected between the lower end surface of the lifting plug and the bottom surface of the inner wall of the pressure control cylinder, so that the lifting plug can move in the pressure control cylinder.

[0020] Preferably, a plug head of a thrust plug rod is fitted on the top of the inner wall of the storage cylinder, and the thrust plug rod slides through the bottom setting of the storage cylinder, and the bottom end of the thrust plug rod is vertically fixedly connected to the top of the shell cover, the top of the shell cover is fixedly connected to the lower port of the infusion tube, and the upper port of the infusion tube is fixedly connected to the side wall of the pressure control cylinder, and the upper port of the infusion tube is fitted on the side wall of the lifting plug, so that the thrust plug rod can move in the storage cylinder, a dressing is fixedly connected to the bottom inner wall of the shell cover, and the top of the dressing is fitted with the lower port of the infusion tube for absorbing the medicine, and rubber plugs with equal intervals are fitted and passed through the shell cover, the dressing and the film, and the top of the rubber plug is fixedly connected to the inner wall of the fitting seat, the film is sleeved on the bottom of the dressing, and the edge of the film is fixedly connected to the bottom of the shell cover, and the dressing is above the flushing head, so that the rubber plug can be separated from the dressing.

[0021] The operation process of the negative pressure wound therapy device is as follows:

[0022] S1: The user tears off the protective film on the adhesive patch, sticks the fitting seat on the wound, and then sticks the adhesive patch on the skin to further improve the sealing effect, then ties the restraint belt and starts the air pump. At this time, the air pump will suck the gas in the storage cylinder, so that negative pressure is generated in the connecting tube and the negative pressure cylinder. At this time, the outer plug rod will move along the inner wall of the negative pressure cylinder, and the outer plug rod will drive the liquid medicine plug rod and the sleeve ring to move synchronously. The sleeve ring compresses the second spring, and at the same time, the liquid medicine plug rod drives the extrusion plug body to squeeze the disinfectant in the second connecting cylinder, so that the disinfectant flows to the flushing head through the liquid inlet pipe. The liquid flowing out of the flushing head will clean the wound. At the same time, the disinfectant after flushing will flow into the negative pressure cylinder through the suction head and the discharge pipe, and the disinfectant in the negative pressure cylinder will enter the storage cylinder through the connecting pipe. The suction head can effectively extract the air around the wound to prevent bacterial infection;

[0023] S2: When the extrusion plug moves, the moving extrusion plug will drive the guide platform to move synchronously through the slider, and the guide platform will drive the crossbar to move through the wavy guide groove. At this time, the moving frame connected to the crossbar will reciprocate up and down synchronously, and the moving frame will drive the push frame to move synchronously through the slide groove. Since the two push frames are distributed in an "eight" shape, the bottom of the push frame will contact the skin near the wound at this time, and the wound will be gently pulled open by the push frame, thereby improving the cleaning effect of the inside of the wound;

[0024] S3: When the extruded plug body passes through the limit pin, the limit pin will move downward under the reset action of the spring to limit the extruded plug body. On the other hand, the outer plug rod will drive the force-bearing teeth to press against the end of the negative pressure cylinder. At this time, the force-bearing teeth will move downward, and the force-bearing teeth will synchronously apply pressure to the fitting positioning block, so that the positioning block compresses the first spring. At the same time, the positioning block is separated from the outer plug rod to release the locking relationship. At this time, the second spring will push the collar to move through the reset action. The collar drives the inner core rod to move synchronously through the liquid medicine plug rod, so that the plug head of the liquid medicine plug rod can move into the extruded plug body. At this time, the liquid medicine in the extruded plug body will flow into the storage tube, the docking tube and the pressure control tube through the liquid medicine tube;

[0025] S4: The liquid pressure of the medicine in the storage cylinder and the pressure-control cylinder will increase synchronously, and the thrust plug rod in the storage cylinder will move downward first, and the thrust plug rod will drive the dressing to move downward synchronously through the shell cover. At this time, the rubber plug will be pulled out from the dressing and the film, so that the medicine mesh on the dressing can be exposed. When the liquid pressure of the medicine in the pressure-control cylinder continues to increase, the lifting plug moves downward and no longer blocks the port of the infusion tube. The lifting plug compresses the pressure spring. At this time, the medicine in the pressure-control cylinder will flow to the dressing through the infusion tube, so that the dressing can absorb the medicine, and the medicine will flow to the wound through the mesh on the dressing for automatic medicine application. The user can freely control the start and stop of the air pump.

[0026] Compared with the prior art, the beneficial effects of the present invention are: the highly efficient wound debridement and negative pressure wound treatment device and system can automatically clean the wound, thereby improving the work efficiency, and during the cleaning process, the wound can be retracted to improve the debridement effect, and the medicine application operation can be performed after the debridement is completed. The specific contents are as follows:

[0027] 1. A guide groove is provided on the side wall of the guide platform, and the guide groove is in a wave-shaped structure. A side of the cross bar away from the moving frame is fitted on the inner wall of the guide groove. Symmetrically distributed slide grooves are provided at both ends of the bottom of the moving frame, and convex shafts corresponding to the push frames are fitted on the inner wall of the slide groove. The two push frames are tilted and slid through the bottom of the fitting seat, so that the guide platform can drive the cross bar to move through the guide groove, and the cross bar will drive the push frame to move synchronously through the slide groove on the moving frame, and the bottom of the push frame is used to pull the incision;

[0028] 2. The supply mechanism includes an outer plug rod, the rod body of the outer plug rod slides through the end arrangement of the negative pressure cylinder, the plug head of the outer plug rod is fitted on the inner wall of the end of the negative pressure cylinder, the inner core rod is coaxially fitted inside the rod body of the outer plug rod, the end surface of the inner core rod is coaxially fixedly connected with the end of the medicine liquid plug rod, the end of the medicine liquid plug rod away from the inner core rod slides through the extrusion plug body, the internal hollow arrangement of the extrusion plug body is used to store medicine liquid, the outer wall of the extrusion plug body is fitted on the inner wall of the second connecting cylinder, the middle part of the plug head of the medicine liquid plug rod is fixedly connected with the liquid inlet port of the medicine liquid tube, and the negative pressure in the negative pressure cylinder first drives the outer plug rod to move, so that the outer plug rod drives the medicine liquid plug rod and the extrusion plug body to move through the inner core rod, so that the extrusion plug body can squeeze out the disinfection night in the second connecting cylinder, and when the locking relationship between the inner core rod and the outer plug rod is released, the second spring drives the medicine liquid plug rod to move in the extrusion plug body through the collar to extrude the medicine liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0030] Figure 2 This is a schematic diagram of the installation structure of the second connecting tube of the present invention;

[0031] Figure 3 This is a schematic diagram of the installation structure of the guide platform of the present invention;

[0032] Figure 4 This is a schematic diagram of the collar installation structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the push frame installation structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the installation structure of the liquid medicine plug rod of the present invention;

[0035] Figure 7 This is a schematic diagram of the inner core rod installation structure of the present invention;

[0036] Figure 8 This is a schematic diagram of the installation structure of the positioning block of the present invention;

[0037] Fig. 9 This is a schematic diagram of the thrust plug rod installation structure of the present invention;

[0038] Fig.10 This is a schematic diagram of the installation structure of the liquid inlet pipe of the present invention.

[0039] In the figure: 1, storage cylinder; 2, air pump; 3, connecting pipe; 4, negative pressure cylinder; 5, first connecting cylinder; 6, fitting seat; 7, restraint belt; 8, adhesive patch; 9, supply mechanism; 901, outer plug rod; 902, inner core rod; 903, force-bearing teeth; 904, positioning block; 905, first spring; 906, liquid medicine plug rod; 907, extrusion plug body; 908, collar; 909, second spring; 10, liquid medicine tube; 11, second connecting cylinder; 12, limit pin; 13, slider; 14 , guide platform; 15, guide groove; 16, transmission mechanism; 1601, cross bar; 1602, moving frame; 1603, slide groove; 1604, push frame; 17, liquid inlet pipe; 18, one-way plug; 19, flushing head; 20, suction head; 21, discharge pipe; 22, storage cylinder; 23, thrust plug rod; 24, docking tube; 25, pressure control cylinder; 26, lifting plug; 27, pressure spring; 28, infusion tube; 29, shell cover; 30, rubber plug; 31, dressing; 32, film. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 10 The present invention provides a technical solution: a highly efficient debridement and negative pressure wound treatment device, comprising:

[0042] The storage cylinder 1 has a mesh cover at the top thereof fixedly connected to a suction pipe port of an air pump 2, the air pump 2 is fixedly mounted on the outer wall of the storage cylinder 1, and the other end of a connecting pipe 3 is fixedly connected to the top side wall of the storage cylinder 1, and the other end of the connecting pipe 3 is fixedly connected to the end of a negative pressure cylinder 4, and the negative pressure cylinder 4 is fixedly installed through the end of a first connecting cylinder 5;

[0043] Also includes:

[0044] The second connecting tube 11 is coaxially fixedly connected to the outer wall of the first connecting tube 5 on the side away from the negative pressure tube 4. The second connecting tube 11 is horizontally fixedly embedded in the top of the fitting seat 6 for storing disinfectant. A supply mechanism 9 is coaxially arranged inside the first connecting tube 5. The supply mechanism 9 includes an outer plug rod 901. The rod body of the outer plug rod 901 slides through the end of the negative pressure tube 4, and the plug head of the outer plug rod 901 is fitted on the inner wall of the end of the negative pressure tube 4. An inner core rod 902 is coaxially fitted inside the rod body of the outer plug rod 901, and the end face of the inner core rod 902 is coaxially fixedly connected to the inner core rod 902. The end of the liquid medicine plug rod 906 is connected, the liquid medicine plug rod 906 slides through the first connecting tube 5 and the second connecting tube 11, and the end of the liquid medicine plug rod 906 away from the inner core rod 902 slides through the extrusion plug body 907, and the plug head of the liquid medicine plug rod 906 is fitted on the inner wall of the extrusion plug body 907, the inner hollow of the extrusion plug body 907 is used to store liquid medicine, and the outer wall of the extrusion plug body 907 is fitted on the inner wall of the second connecting tube 11 for extruding disinfectant, and the middle part of the plug head of the liquid medicine plug rod 906 is fixedly connected with the liquid inlet port of the liquid medicine tube 10;

[0045] The guide platform 14 is slidably embedded in the interior of the fitting seat 6, and a slider 13 is fixedly connected between the top of one side of the guide platform 14 and the bottom surface of the end of the extrusion plug 907, and the slider 13 is fit-fitted in the guide groove opened on the fitting seat 6 and the second connecting tube 11. A transmission mechanism 16 is arranged on the side of the guide platform 14, and the transmission mechanism 16 includes a cross bar 1601, and the cross bar 1601 and a movable frame 1602 are slidably embedded on the inner wall of the fitting seat 6, and the cross bar 1601 is horizontally fixedly connected to the top of the movable frame 1602, and a flushing head 19 and a suction head 20 are fixedly embedded on the inner wall of the bottom of the fitting seat 6.

[0046] A positioning block 904 is fitted and embedded in the mounting groove at the end of the inner core rod 902, and a first spring 905 is fixedly connected between the lower end of the positioning block 904 and the inner wall of the inner core rod 902, and the upper end of the positioning block 904 is fitted and inserted on the inner wall of the outer plug rod 901, and the upper end surface of the positioning block 904 is in contact with the bottom arc-shaped protrusion of the force-bearing tooth 903, and the force-bearing tooth 903 slides through the side wall of the outer plug rod 901, and the inclined surface of the top tooth of the force-bearing tooth 903 is arranged toward the port of the negative pressure cylinder 4, and the length of the arc-shaped protrusion at the bottom of the force-bearing tooth 903 is greater than that of the positioning block 904. When negative pressure is generated in the negative pressure cylinder 4 and drives the outer plug rod 901 to move, the outer plug rod 901 will drive the inner core rod 902 to move synchronously through the positioning block 904, and the inner core rod 902 will drive the liquid medicine plug rod 906 to move, and the liquid medicine plug rod 906 is coaxially fixedly connected with a collar 908 on the side wall of the end away from the extrusion plug body 907, and the collar 908 and the liquid medicine plug rod 906 are fixedly installed with a liquid medicine tube 10, and a second spring 909 is fixedly connected between the annular surface of the collar 908 and the inner wall of the first connecting cylinder 5, and the second spring 909 is sleeved on the outer side of the negative pressure cylinder 4 , and the end of the collar 908 and the outer plug rod 901 are fitted, the lower end surface of the limit pin 12 is fitted on the outer wall of the end of the extrusion plug body 907, and the top of the limit pin 12 and the inner wall of the second connecting tube 11 are elastically connected by a spring. At this time, the liquid medicine plug rod 906 will drive the collar 908 and the extrusion plug body 907 to move synchronously, so that the collar 908 compresses the second spring 909, and the extrusion plug body 907 will drive the guide platform 14 to move synchronously through the fixedly connected slider 13. Since the side wall of the guide platform 14 is provided with a guide groove 15, and the guide groove 15 is wavy The guide slot 15 has a wave-like structure, and a side of the cross bar 1601 away from the movable frame 1602 is fitted on the inner wall of the guide slot 15. The movable frame 1602 has symmetrically distributed slide slots 1603 at both ends of the bottom, and the inner wall of the slide slot 1603 is fitted with convex shafts corresponding to the push frames 1604. The two push frames 1604 are tilted and slidably penetrate the bottom of the fitting seat 6. At this time, the guide platform 14 will drive the cross bar 1601 to reciprocate through the guide slot 15, and the cross bar 1601 drives the push frame 1604 to move through the slide slot 1603 on the movable frame 1602, so that the bottom end of the push frame 1604 contacts the skin around the wound, thereby pulling the wound apart to facilitate deep debridement.

[0047] The top of the flushing head 19 is fixedly connected with the lower port of the liquid inlet pipe 17, and the upper port of the liquid inlet pipe 17 is fixedly installed on the side wall of one end of the second connecting tube 11 close to the first connecting tube 5. The liquid inlet pipe 17 and the liquid discharge pipe 21 are fixedly installed on both sides of the fitting seat 6, and a one-way plug 18 is fitted in the middle pipe of the liquid inlet pipe 17 to form a one-way flow structure of the disinfectant, and the end surface of the one-way plug 18 is elastically connected to the inner wall of the installation tube on the side wall of the liquid inlet pipe 17 through a spring, so that the disinfectant in the second connecting tube 11 can flow. The liquid flows into the flushing head 19 through the liquid inlet pipe 17, an adhesive patch 8 is fixedly sleeved on the outer wall of the bottom of the fitting seat 6, and corresponding restraining belts 7 are fixedly connected to the two sides of the fitting seat 6, the flushing head 19 is arranged opposite to the suction head 20, and the top of the suction head 20 is fixedly connected to the lower port of the drainage pipe 21, and the drainage pipe 21 is fixedly penetrated by the fitting seat 6, and the upper port of the drainage pipe 21 is fixedly connected to the side wall of the negative pressure cylinder 4, the bottom of the fitting seat 6 is made of rubber material, and the disinfectant flowing out of the flushing head 19 can clean the wound.

[0048] The top of the inner wall of the storage tube 22 is fitted with a plug head of a thrust plug rod 23, and the thrust plug rod 23 slides through the bottom of the storage tube 22, and the bottom end of the thrust plug rod 23 is vertically fixedly connected to the top of the shell cover 29, the top of the shell cover 29 is fixedly connected to the lower port of the infusion tube 28, and the upper port of the infusion tube 28 is fixedly connected to the side wall of the pressure control tube 25, and the upper port of the infusion tube 28 is fitted on the side wall of the lifting plug 26, and the storage tube is used to lift the pressure control tube 25. The liquid medicine pressure in 22 pushes the thrust plug rod 23 to move, so that the thrust plug rod 23 drives the shell cover 29 and the dressing 31 to move synchronously, and the dressing 31 is fixedly connected to the inner wall of the bottom of the shell cover 29, and the top of the dressing 31 is attached to the lower port of the infusion tube 28 for absorbing the liquid medicine, and the shell cover 29, the dressing 31 and the film 32 are attached with rubber plugs 30 with equal intervals, and the top of the rubber plug 30 is fixedly connected to the inner wall of the fitting seat 6, and the film 31 is attached to the lower port of the infusion tube 28 for absorbing the liquid medicine. 2 is set at the bottom of the dressing 31, and the edge of the film 32 is fixedly connected to the bottom of the shell cover 29, and the dressing 31 is above the flushing head 19. At this time, the rubber plug 30 will be pulled out of the dressing 31, and the liquid outlet port of the liquid medicine tube 10 is fixedly connected to the upper part of the side wall of the storage tube 22, and the storage tube 22, the butt pipe 24 and the pressure control tube 25 are fixedly embedded in the bottom of the fitting seat 6, and the upper port of the butt pipe 24 is fixedly connected to the upper part of the side wall of the storage tube 22. , and the lower port of the docking tube 24 is fixedly connected to the top of the pressure control cylinder 25, and the upper port of the docking tube 24 is arranged opposite to the liquid outlet port of the medicine tube 10. A lifting plug 26 is fitted on the inner wall of the top of the pressure control cylinder 25, and a pressure spring 27 is fixedly connected between the lower end surface of the lifting plug 26 and the bottom surface of the inner wall of the pressure control cylinder 25. The medicine in the pressure control cylinder 25 can push the lifting plug 26 to move downward, so that the medicine in the pressure control cylinder 25 can flow into the infusion tube 28.

[0049] The operation process of the negative pressure wound therapy device is as follows:

[0050] S1: The user tears off the protective film on the adhesive patch 8, attaches the fitting seat 6 to the wound, and then attaches the adhesive patch 8 to the skin to further improve the sealing effect, and then ties the restraining belt 7 and starts the air pump 2. At this time, the air pump 2 will suck the gas in the storage cylinder 1, so that negative pressure is generated in the connecting tube 3 and the negative pressure cylinder 4. At this time, the outer plug rod 901 will move along the inner wall of the negative pressure cylinder 4, and the outer plug rod 901 will drive the liquid medicine plug rod 906 and the ring 908 to move synchronously. The ring 908 will be the second elastic The spring 909 is compressed, and at the same time, the liquid medicine plug rod 906 drives the extrusion plug body 907 to squeeze the disinfectant in the second connecting tube 11, so that the disinfectant flows to the flushing head 19 through the liquid inlet pipe 17. The liquid medicine flowing out of the flushing head 19 will clean the wound. At the same time, the disinfectant after flushing will flow into the negative pressure tube 4 through the suction head 20 and the discharge pipe 21, and the disinfectant in the negative pressure tube 4 will enter the storage tube 1 through the connecting pipe 3. The suction head 20 can effectively extract the air around the wound to prevent bacterial infection;

[0051] S2: When the extrusion plug 907 moves, the moving extrusion plug 907 will drive the guide platform 14 to move synchronously through the slider 13, and the guide platform 14 will drive the cross bar 1601 to move through the wavy guide groove 15. At this time, the moving frame 1602 connected to the cross bar 1601 will reciprocate up and down synchronously, and the moving frame 1602 will drive the push frame 1604 to move synchronously through the slide groove 1603. Since the two push frames 1604 are distributed in an "eight" shape, the bottom of the push frame 1604 will contact the skin near the wound, and the wound will be gently pulled open by the push frame 1604, thereby improving the cleaning effect of the inside of the wound;

[0052] S3: When the extruded plug body 907 passes through the limit pin 12, the limit pin 12 will move downward under the reset action of the spring to limit the extruded plug body 907. On the other hand, the outer plug rod 901 will drive the force-bearing tooth 903 to press against the end of the negative pressure cylinder 4. At this time, the force-bearing tooth 903 will move downward, and the force-bearing tooth 903 will synchronously apply pressure to the fitted positioning block 904, so that the positioning block 904 compresses the first spring 905. At the same time, the positioning block 904 is disengaged from the outer plug rod 901 to release the locking relationship. At this time, the second spring 909 will push the collar 908 to move through the reset action. The collar 908 drives the inner core rod 902 to move synchronously through the liquid medicine plug rod 906, so that the plug head of the liquid medicine plug rod 906 can move into the extruded plug body 907. At this time, the liquid medicine in the extruded plug body 907 will flow into the storage tube 22, the butt joint tube 24 and the pressure control tube 25 through the liquid medicine tube 10;

[0053] S4: The pressure of the drug liquid in the storage cylinder 22 and the pressure-controlling cylinder 25 will increase synchronously, and the thrust plug rod 23 in the storage cylinder 22 will move downward first. The thrust plug rod 23 drives the dressing 31 to move downward synchronously through the shell cover 29. At this time, the rubber plug 30 will be pulled out from the dressing 31 and the film 32, so that the drug application mesh on the dressing 31 can be exposed. When the pressure of the drug liquid in the pressure-controlling cylinder 25 continues to increase, the lifting plug 26 moves downward and no longer blocks the port of the infusion tube 28. The lifting plug 26 compresses the pressure spring 27. At this time, the drug liquid in the pressure-controlling cylinder 25 will flow to the dressing 31 through the infusion tube 28, so that the dressing 31 can absorb the drug liquid, and the drug liquid will flow to the wound through the mesh on the dressing 31 for automatic drug application. The user can freely control the start and stop of the air pump 2.

[0054] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient debridement and negative pressure wound treatment device, comprising: A storage cylinder (1) having a suction pipe port of an air pump (2) fixedly connected in a mesh cover at the top thereof, the air pump (2) being fixedly mounted on the outer wall of the storage cylinder (1), and the other end of a connecting pipe (3) being fixedly connected on the top side wall of the storage cylinder (1), and the other end of the connecting pipe (3) being fixedly connected to the end of a negative pressure cylinder (4), and the negative pressure cylinder (4) being fixedly installed through the end of a first connecting cylinder (5); It is characterized by further comprising: The second connecting tube (11) is coaxially fixedly connected to the outer wall of the first connecting tube (5) on the side away from the negative pressure tube (4). The second connecting tube (11) is horizontally fixedly embedded in the top of the fitting seat (6) for storing disinfectant. A supply mechanism (9) is coaxially arranged inside the first connecting tube (5). The supply mechanism (9) comprises an outer plug rod (901). The rod body of the outer plug rod (901) is slidably inserted through the end of the negative pressure tube (4). The plug head of the outer plug rod (901) is fitted on the inner wall of the end of the negative pressure tube (4). An inner core rod (902) is coaxially inserted inside the rod body of the outer plug rod (901). The end surface of the inner core rod (902) is coaxially inserted. The end of a liquid medicine plug rod (906) is fixedly connected, the liquid medicine plug rod (906) slides through the first connecting tube (5) and the second connecting tube (11), and the end of the liquid medicine plug rod (906) away from the inner core rod (902) slides through the extrusion plug body (907), and the plug head of the liquid medicine plug rod (906) is fitted on the inner wall of the extrusion plug body (907), the inner hollow part of the extrusion plug body (907) is used to store liquid medicine, and the outer wall of the extrusion plug body (907) is fitted on the inner wall of the second connecting tube (11) for extruding disinfectant, and the middle part of the plug head of the liquid medicine plug rod (906) is fixedly connected to the liquid inlet port of the liquid medicine tube (10); A positioning block (904) is fitted and embedded in the mounting groove at the end of the inner core rod (902), and a first spring (905) is fixedly connected between the lower end of the positioning block (904) and the inner wall of the inner core rod (902), and the upper end of the positioning block (904) is fitted and inserted on the inner wall of the outer plug rod (901), and the upper end surface of the positioning block (904) is in contact with the bottom arc-shaped protrusion of the force-bearing tooth (903); A collar (908) is coaxially fixedly connected to the side wall of one end of the liquid medicine plug rod (906) away from the extrusion plug body (907), and a liquid medicine tube (10) is fixedly installed on the collar (908) and the liquid medicine plug rod (906). A second spring (909) is fixedly connected between the annular surface of the collar (908) and the inner wall of the first connecting tube (5), and the second spring (909) is sleeved on the outer side of the negative pressure tube (4), and the collar (908) and the end of the outer plug rod (901) are fitted together, and the lower end surface of the limit pin (12) is fitted on the outer wall of the end of the extrusion plug body (907), and the top of the limit pin (12) and the inner wall of the second connecting tube (11) are elastically connected via a spring; A guide platform (14) is slidably embedded in the interior of the fitting seat (6); a slider (13) is fixedly connected between the top of one side of the guide platform (14) and the bottom surface of the end of the extrusion plug body (907), and the slider (13) is fitted in the guide grooves provided on the fitting seat (6) and the second connecting tube (11); a transmission mechanism (16) is provided on the side of the guide platform (14); the transmission mechanism (16) comprises a cross bar (1601); the cross bar (1601) and a movable frame (1602) are slidably embedded on the inner wall of the fitting seat (6), and the cross bar (1601) is horizontally fixedly connected to the top of the movable frame (1602); a flushing head (19) and a suction head (20) are fixedly embedded on the inner wall of the bottom of the fitting seat (6); An adhesive patch (8) is fixedly provided on the outer wall of the bottom of the fitting seat (6), and corresponding restraining belts (7) are fixedly connected to both sides of the fitting seat (6), the flushing head (19) is arranged opposite to the suction head (20), and the top of the suction head (20) is fixedly connected to the lower port of the drainage pipe (21), and the drainage pipe (21) is fixedly passed through the fitting seat (6), and the upper port of the drainage pipe (21) is fixedly connected to the side wall of the negative pressure cylinder (4), and the bottom of the fitting seat (6) is made of rubber material; A guide groove (15) is provided on the side wall of the guide platform (14), and the guide groove (15) is in a wave-shaped structure, and a side of the cross bar (1601) away from the movable frame (1602) is fitted on the inner wall of the guide groove (15), and symmetrically distributed slide grooves (1603) are provided at both ends of the bottom of the movable frame (1602), and a convex shaft corresponding to the push frame (1604) is fitted on the inner wall of the slide groove (1603), and the two push frames (1604) are obliquely slidable and penetrate the bottom of the fitting seat (6); The top of the flushing head (19) is fixedly connected to the lower port of the liquid inlet pipe (17), and the upper port of the liquid inlet pipe (17) is fixedly installed on the side wall of one end of the second connecting tube (11) close to the first connecting tube (5), the liquid inlet pipe (17) and the liquid discharge pipe (21) are fixedly installed on both sides of the fitting seat (6), and a one-way plug (18) is fitted and embedded in the middle pipe of the liquid inlet pipe (17) to form a one-way flow structure of the disinfectant, and the end surface of the one-way plug (18) is elastically connected to the inner wall of the installation tube on the side wall of the liquid inlet pipe (17) through a spring; The liquid outlet port of the medicine liquid tube (10) is fixedly connected to the upper part of the side wall of the storage tube (22), and the storage tube (22), the butt joint tube (24) and the pressure control tube (25) are fixedly embedded in the bottom of the fitting seat (6), and the upper port of the butt joint tube (24) is fixedly connected to the side wall of the storage tube (22), and the lower port of the butt joint tube (24) is fixedly connected to the top of the pressure control tube (25), the upper port of the butt joint tube (24) is arranged directly opposite to the liquid outlet port of the medicine liquid tube (10), a lifting plug (26) is fitted on the inner wall of the top of the pressure control tube (25), and a pressure spring (27) is fixedly connected between the lower end surface of the lifting plug (26) and the bottom surface of the inner wall of the pressure control tube (25); The top of the inner wall of the storage cylinder (22) is fitted with a plug head of a thrust plug rod (23), and the thrust plug rod (23) is slidably inserted through the bottom of the storage cylinder (22), and the bottom end of the thrust plug rod (23) is vertically fixedly connected to the top of the shell cover (29), the top of the shell cover (29) is fixedly connected to the lower port of the infusion tube (28), and the upper port of the infusion tube (28) is fixedly connected to the side wall of the pressure control cylinder (25), and the upper port of the infusion tube (28) is fitted on the side wall of the lifting plug (26), and the shell cover (29) is fixedly connected to the lower port of the infusion tube (28). A dressing (31) is fixedly connected to the inner wall of the bottom, and the top of the dressing (31) is fitted with the lower port of the infusion tube (28) for absorbing liquid medicine, and rubber plugs (30) are fitted and passed through the shell cover (29), the dressing (31) and the film (32) at equal intervals, and the top of the rubber plug (30) is fixedly connected to the inner wall of the fitting seat (6), the film (32) is sleeved on the bottom of the dressing (31), and the edge of the film (32) is fixedly connected to the bottom of the shell cover (29), and the dressing (31) is located above the flushing head (19).

2. The highly efficient debridement and negative pressure wound treatment device according to claim 1, characterized in that: The force-bearing tooth (903) is slidably arranged to penetrate the side wall of the outer plug rod (901), the inclined surface of the top tooth of the force-bearing tooth (903) is arranged toward the port of the negative pressure cylinder (4), and the length of the arc-shaped protrusion at the bottom of the force-bearing tooth (903) is greater than the top length of the positioning block (904).

3. The highly efficient debridement and negative pressure wound treatment device according to claim 1, characterized in that: The operation process of the negative pressure wound therapy device is as follows: S1: The user tears off the protective film on the adhesive patch (8), attaches the fitting seat (6) to the wound, and then attaches the adhesive patch (8) to the skin to further improve the sealing effect. The restraining belt (7) is then tied and the air pump (2) is started. At this time, the air pump (2) will suck the gas in the storage cylinder (1), so that negative pressure is generated in the connecting tube (3) and the negative pressure cylinder (4). At this time, the outer plug rod (901) will move along the inner wall of the negative pressure cylinder (4). The outer plug rod (901) will drive the liquid medicine plug rod (906) and the ring (908) to move synchronously. The ring (908) will move the second The spring (909) is compressed, and at the same time the liquid medicine plug rod (906) drives the extrusion plug body (907) to squeeze the disinfectant in the second connecting tube (11), so that the disinfectant flows to the flushing head (19) through the liquid inlet pipe (17). The liquid medicine flowing out of the flushing head (19) cleans the wound. At the same time, the disinfectant after flushing flows into the negative pressure tube (4) through the suction head (20) and the liquid discharge pipe (21), and the disinfectant in the negative pressure tube (4) enters the storage tube (1) through the connecting pipe (3). The suction head (20) can effectively extract the air around the wound to prevent bacterial infection. S2: When the extrusion plug (907) moves, the moving extrusion plug (907) will drive the guide platform (14) to move synchronously through the slider (13), and the guide platform (14) will drive the cross bar (1601) to move through the wavy guide groove (15). At this time, the moving frame (1602) on the connecting part of the cross bar (1601) will reciprocate up and down synchronously, and the moving frame (1602) will drive the push frame (1604) to move synchronously through the slide groove (1603). Since the two push frames (1604) are arranged in an "eight" shape, at this time, the bottom of the push frame (1604) will contact the skin near the wound, and the wound will be gently pulled open by the push frame (1604), thereby improving the cleaning effect of the inside of the wound; S3: When the extrusion plug body (907) passes through the limit pin (12), the limit pin (12) will move downward under the resetting action of the spring to limit the extrusion plug body (907). On the other hand, the outer plug rod (901) will drive the force-bearing teeth (903) to press against the end of the negative pressure cylinder (4). At this time, the force-bearing teeth (903) will move downward, and the force-bearing teeth (903) will simultaneously apply pressure to the fitting positioning block (904), so that the positioning block (904) compresses the first spring (905). At the same time, the positioning block (904) 04) disengage from the outer plug rod (901) to release the locking relationship, at which time the second spring (909) will push the collar (908) to move through the reset action, and the collar (908) will drive the inner core rod (902) to move synchronously through the liquid medicine plug rod (906), so that the plug head of the liquid medicine plug rod (906) can move into the extrusion plug body (907), and at this time the liquid medicine in the extrusion plug body (907) will flow into the storage tube (22), the docking tube (24) and the pressure control tube (25) through the liquid medicine tube (10); S4: The pressure of the drug liquid in the storage cylinder (22) and the pressure control cylinder (25) will increase synchronously, and the thrust plug rod (23) in the storage cylinder (22) will first move downward. The thrust plug rod (23) drives the dressing (31) to move downward synchronously through the shell cover (29). At this time, the rubber plug (30) will be drawn out from the dressing (31) and the film (32), so that the drug application mesh on the dressing (31) can be exposed. When the pressure of the drug liquid in the pressure control cylinder (25) continues to increase, the lifting plug (26) moves downward and no longer blocks the port of the infusion tube (28). The lifting plug (26) compresses the pressure spring (27). At this time, the drug liquid in the pressure control cylinder (25) will flow to the dressing (31) through the infusion tube (28), so that the dressing (31) can absorb the drug liquid, and the drug liquid will flow to the wound through the mesh on the dressing (31) to automatically apply the drug. The user can freely control the start and stop of the air pump (2).

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