Portable chronic wound treatment negative pressure oxygen inlet device

Abstract

The invention relates to the technical field of chronic wound treatment, and discloses a portable chronic wound treatment negative pressure oxygen feeding device which comprises a main machine shell, a first tray and a second tray are fixedly connected to the two sides of the main machine shell, an operation panel is installed on the top of the main machine shell, hanging lugs are fixedly connected to the two sides of the main machine shell, and binding bands are connected to the interiors of the hanging lugs in a sewn mode; the negative pressure suction assembly is arranged in the main machine shell, the negative pressure suction assembly comprises a negative pressure cylinder, a piston is arranged in the negative pressure cylinder, and an insertion rod is inserted into the piston. The hanging lugs with the binding bands are arranged on the two sides of the main machine shell, the main machine shell can be easily carried on the waist of a patient through combination of the elastic binding bands and the hook-and-loop fasteners, it is greatly convenient for the patient to continuously conduct negative pressure oxygen inlet treatment when the patient gets out of a bed to move, and the movement freedom degree of the patient in the treatment period is improved; the living quality is prevented from being affected by equipment limitation, the treatment requirements of patients in different scenes are met, and portable treatment is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of chronic wound treatment, and in particular to a portable negative pressure oxygen supply device for chronic wound treatment. Background Art

[0002] Chronic wounds, such as burns and scalds, have always been a difficult problem in clinical treatment because of their slow healing process and susceptibility to interference from multiple factors. Currently, clinical trials have shown that negative pressure drainage therapy and oxygen therapy have a very significant effect on wound recovery.

[0003] However, most of the current negative pressure oxygen therapy equipment for chronic wounds is large in size and complex in structure, and usually needs to be connected to the mains, which severely restricts the patient's movement during treatment. For example, some large negative pressure therapy instruments have a main unit size similar to a small refrigerator, and patients can only use them in specific wards in the hospital and cannot move freely. For chronic wound patients who have limited mobility and require long-term treatment, this greatly reduces the patient's quality of life and limits the patient's treatment options outside the hospital, and cannot meet the patient's needs for treatment anytime and anywhere. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a portable negative pressure oxygen supply device for treating chronic wounds, which has the advantages of convenient oxygen supply during negative pressure treatment and convenient carrying when patients get out of bed, thereby solving the above-mentioned technical problems.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a portable negative pressure oxygen supply device for treating chronic wounds, comprising a main body shell, with tray one and tray two fixedly connected on both sides thereof, an operation panel installed on the top of the main body shell, and ears fixedly connected on both sides of the main body shell, and a binding strap sutured inside the ears; The cam is connected to the air intake pipe by a threaded connection to the top of the air intake pipe, and the cam is connected to the air intake pipe by a threaded connection to the top of the air intake pipe. The dressing component comprises a polyurethane foam dressing, wherein a negative pressure suction tube and an oxygen inlet tube are inserted into the polyurethane foam dressing.

[0006] Preferably, two of the straps are provided, the two straps are elastic, and the outer surface of one of the straps is sewn and connected with a thorn-surface Velcro, and the outer surface of the other strap is sewn and connected with a fleece-surface Velcro.

[0007] Preferably, two insertion holes are provided on the outer side of the polyurethane foam dressing, a negative pressure suction tube is inserted into one of the insertion holes, and an oxygen supply tube is inserted into the other insertion hole, and the two insertion holes are not connected to each other, and an adhesive tape 304 is pasted on the upper surface of the polyurethane foam dressing 301.

[0008] Preferably, a small oxygen cylinder is placed inside the tray one, the top of the small oxygen cylinder is threadedly connected with an air outlet valve, the outer surface of the air outlet valve is fixedly connected with a gas nozzle, and the end of the oxygen inlet tube away from the polyurethane foam dressing is plugged into the gas nozzle.

[0009] Preferably, a negative pressure bottle is placed inside the tray 2, a cannula is fixedly connected to the outer surface of the negative pressure bottle near the bottom, the top of the negative pressure bottle is threadedly connected to the top cover, the top of the top cover is fixedly connected to a negative pressure connector, and one end of the negative pressure connector is plugged into the negative pressure suction tube.

[0010] Preferably, the interior of the negative pressure bottle is filled with a desiccant, one end of the cannula located inside the negative pressure bottle has a filter inside, and the other end of the cannula is connected with a second one-way valve.

[0011] Preferably, the driving component includes a micro motor, the output shaft of the micro motor is connected to a first pulley, the first pulley is connected to a synchronous belt, the synchronous belt is connected to a second pulley, and the bottom center of the second pulley is fixedly connected to a first shaft.

[0012] Preferably, the first shaft rod and the second shaft rod are coaxial, the bottom end of the second shaft rod is rotatably connected to an ear plate, and the ear plate is fixedly connected to the outer surface of the negative pressure cylinder.

[0013] Preferably, a first layer is sleeved on the outer surface of the negative pressure cylinder, and a second layer is arranged at the bottom of the negative pressure cylinder, a battery is installed on the top of the first layer, and a frequency converter is installed on the top of the second layer.

[0014] Preferably, a heat dissipation hole is provided on the outer surface of the host shell, and an air inlet hole is provided on the bottom of the host shell.

[0015] Compared with the prior art, the present invention provides a portable negative pressure oxygen supply device for treating chronic wounds, which has the following beneficial effects: 1. The present invention provides ears with straps on both sides of the main body shell, and uses a combination of elastic straps and Velcro to easily carry the main body shell around the patient's waist, which greatly facilitates the patient to continue negative pressure oxygen therapy when getting out of bed, improves the patient's freedom of movement during treatment, avoids affecting the quality of life due to equipment limitations, meets the patient's treatment needs in different scenarios, and realizes portable treatment.

[0016] 2. The present invention is provided with a negative pressure suction component which, through a series of mechanical transmissions, cooperates with a one-way valve to generate negative pressure in the negative pressure bottle and the dressing, which can not only absorb the wound surface fluid, but also create a negative pressure environment conducive to wound recovery; at the same time, a small oxygen cylinder provides oxygen to the wound surface through an oxygen inlet tube for oxygen therapy, and a two-pronged approach is used to accelerate wound recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the mainframe housing and other components in the present invention; Figure 2 It is a cross-sectional schematic diagram of the mainframe housing and other components in the present invention; Figure 3 A perspective view of a small-sized oxygen cylinder of the present invention; Figure 4 It is a three-dimensional diagram of the negative pressure bottle in the present invention; Figure 5 is a three-dimensional diagram of the negative pressure suction component of the present invention; Figure 6 It is a partial stereoscopic diagram of the negative pressure suction component in the present invention; Figure 7 It is a three-dimensional diagram of the dressing assembly of the present invention.

[0018] Among them: 1. Main body shell; 101. Tray 1; 102. Tray 2; 103. Operation panel; 104. Ear; 105. Band; 106. Shelf 1; 107. Shelf 2; 2. Negative pressure suction assembly; 201. Negative pressure cylinder; 202. Piston; 203. Insert rod; 204. U-shaped block; 205. Connecting rod; 206. Ball head; 207. Ball sleeve; 208. Rotating shaft; 209. U-shaped bracket; 210. Rotating rod; 211. Connecting plate 1; 212. Connecting plate 2; 213. Axis rod No. 1; 214. Axis rod No. 2; 215. Output Trachea; 216, suction pipe; 217, one-way valve 1; 218, one-way valve 2; 219, micro motor; 220, pulley 1; 221, synchronous belt; 222, pulley 2; 223, ear plate; 3, dressing assembly; 301, polyurethane foam dressing; 302, negative pressure suction tube; 303, oxygen inlet tube; 304, adhesive tape; 4, small oxygen cylinder; 5, outlet valve; 6, air nozzle; 7, negative pressure bottle; 8, intubation tube; 9, top cover; 10, negative pressure connector; 11, battery; 12, inverter; 13, heat dissipation hole; 14, air inlet hole. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-Figure 7 The present invention provides a portable negative pressure oxygen supply device for treating chronic wounds, comprising a main body shell 1, with tray 1 101 and tray 2 102 fixedly connected on both sides thereof, an operation panel 103 installed on the top of the main body shell 1, and ears 104 fixedly connected on both sides of the main body shell 1, and a binding band 105 is sutured and connected inside the ears 104; The negative pressure suction component 2 is arranged inside the main body shell 1, and the negative pressure suction component 2 includes a negative pressure cylinder 201, a piston 202 is arranged inside the negative pressure cylinder 201, a rod 203 is inserted into the piston 202, a U-shaped block 204 is fixedly connected to the top of the rod 203, a connecting rod 205 is rotatably connected to the inner side of the U-shaped block 204, a ball head 206 is fixedly connected to the top of the connecting rod 205, a ball sleeve 207 is rotatably connected to the outer surface of the ball head 206, a rotating shaft 208 is fixedly connected to the outer surface of the ball sleeve 207, and one end of the rotating shaft 208 is rotatably connected to the U-shaped Bracket 209, the outer surface of the U-shaped bracket 209 is fixedly connected with a rotating rod 210, and the two ends of the rotating rod 210 are rotatably connected with a connecting plate 1 211 and a connecting plate 212, the outer surface of the connecting plate 1 211 is fixedly connected with a No. 1 shaft rod 213, and the outer surface of the connecting plate 212 is fixedly connected with a No. 2 shaft rod 214, and the bottom end of the negative pressure cylinder 201 is plugged with an air outlet pipe 215 and an air intake pipe 216, the bottom end of the air outlet pipe 215 is threadedly connected with a one-way valve 1 217, and one end of the air intake pipe 216 is threadedly connected with a one-way valve 218, and the top end of the No. 1 shaft rod 213 is connected to a driving component; The dressing assembly 3 includes a polyurethane foam dressing 301 , and a negative pressure suction tube 302 and an oxygen inlet tube 303 are inserted into the polyurethane foam dressing 301 .

[0021] Furthermore, two straps 105 are provided, the two straps 105 are elastic, and the outer surface of one of the straps 105 is sewn and connected with a thorn-surface Velcro, and the outer surface of the other strap 105 is sewn and connected with a fleece-surface Velcro.

[0022] By wrapping the two straps 105 around the patient's waist and then gluing the thorny Velcro and the fleece Velcro together, the two straps 105 are connected, so that the main body shell 1 can be carried around the waist, which makes it convenient for the patient to get out of bed and use the entire device for negative pressure oxygen to treat the wound.

[0023] Furthermore, two sockets are provided on the outer side of the polyurethane foam dressing 301, wherein a negative pressure suction tube 302 is inserted into one of the sockets, and an oxygen inlet tube 303 is inserted into the other socket. The two sockets are not connected to each other. An adhesive sticker 304 is adhered to the upper surface of the polyurethane foam dressing 301. A small oxygen cylinder 4 is placed inside the tray 101, and an air outlet valve 5 is threadedly connected to the top of the small oxygen cylinder 4. An air nozzle 6 is fixedly connected to the outer surface of the air outlet valve 5, and an end of the oxygen inlet tube 303 away from the polyurethane foam dressing 301 is plugged into the air nozzle 6. A negative pressure bottle 7 is placed inside the tray 2 102, and an insertion tube 8 is fixedly connected to the outer surface of the negative pressure bottle 7 near the bottom. The top of the negative pressure bottle 7 is threadedly connected to a top cover 9, and a negative pressure connector 10 is fixedly connected to the top of the top cover 9, and one end of the negative pressure connector 10 is plugged into the negative pressure suction tube 302.

[0024] The wound surface of the patient is cleaned and then covered with the polyurethane foam dressing 301, and then the polyurethane foam dressing 301 is covered with the adhesive patch 304. The area of ​​the adhesive patch 304 needs to be larger than the area of ​​the polyurethane foam dressing 301, so that the edge of the adhesive patch 304 can fit on the intact skin of the patient. It is worth noting that the negative pressure suction tube 302 and the oxygen supply tube 303 need to be wrapped together when pasting, so that when the negative pressure oxygen supply operation is performed later, the outside air can be prevented from entering the polyurethane foam dressing 301.

[0025] Furthermore, the interior of the negative pressure bottle 7 is filled with desiccant, a filter is provided at one end of the cannula 8 located inside the negative pressure bottle 7, and a one-way valve 218 is connected to the other end of the cannula 8, and the driving component includes a micro motor 219, the output shaft of the micro motor 219 is connected to a first pulley 220, the first pulley 220 is transmission-connected to a synchronous belt 221, the synchronous belt 221 is transmission-connected to a second pulley 222, the bottom center of the second pulley 222 is fixedly connected to a first shaft rod 213, the first shaft rod 213 and the second shaft rod 214 are coaxial, the bottom end of the second shaft rod 214 is rotatably connected to an ear plate 223, and the ear plate 223 is fixedly connected to the outer surface of the negative pressure cylinder 201.

[0026] The micro motor 219 is started by the operation panel 103, the micro motor 219 drives the first pulley 220 to rotate, the first pulley 220 drives the synchronous belt 221 to rotate, the synchronous belt 221 drives the second pulley 222 to rotate, the second pulley 222 drives the first shaft rod 213 to rotate, the first shaft rod 213 drives the connecting plate 1 211, the connecting plate 1 211 drives the rotating rod 210, the rotating rod 210 drives the connecting plate 212, the connecting plate 212 drives the connecting plate 212. The second shaft 214 is driven to rotate. Since the rotating rod 210 rotates around the axis of the first shaft 213 and the second shaft 214, the U-shaped bracket 209 will swing, so that the U-shaped bracket 209 drives the rotating shaft 208, the rotating shaft 208 drives the ball sleeve 207, the ball sleeve 207 drives the ball head 206, the ball head 206 drives the connecting rod 205, the connecting rod 205 drives the U-shaped block 204, and the U-shaped block 204 drives the plug rod 203 and the piston 202 reciprocates back and forth. When the piston 202 reciprocates back and forth in the negative pressure cylinder 201, since the one-way valve 1 217 only exhausts air but does not inhale air, and the one-way valve 218 only inhales air but does not exhaust air, the negative pressure cylinder 201 will inhale air from the suction pipe 216 and exhaust air from the outlet pipe 215. Since the one-way valve 218 is connected to the cannula 8, negative pressure will be generated in the negative pressure bottle 7. Since the negative pressure connector 10 is connected to the negative pressure suction tube 302, negative pressure will be generated in the polyurethane foam dressing 301. At this time, when the outlet valve 5 is opened, the oxygen in the small oxygen cylinder 4 will be sucked into the polyurethane foam dressing 301 through the oxygen inlet tube 303, thereby performing oxygen therapy. The overall structure helps to accelerate the recovery of the wound. During the negative pressure suction process, the effusion generated on the wound is also discharged into the negative pressure bottle 7 along with the negative pressure suction tube 302 and absorbed by the desiccant. The desiccant can be easily replaced by opening the top cover 9.

[0027] Furthermore, the outer surface of the negative pressure cylinder 201 is sleeved with layer 106, and layer 2 107 is arranged at the bottom of the negative pressure cylinder 201, the battery 11 is installed on the top of layer 106, the inverter 12 is installed on the top of layer 2 107, the outer surface of the main housing 1 is provided with heat dissipation holes 13, and the bottom of the main housing 1 is provided with air inlet holes 14.

[0028] The micro motor 219 is powered by the battery 11. The micro motor 219 is a small DC motor. The speed of the micro motor 219 can be adjusted by the frequency converter 12, so that the frequency of the reciprocating motion of the piston 202 can be adjusted, thereby adjusting the size of the negative pressure on the wound surface. The heat dissipation holes 13 are provided to facilitate heat dissipation of the micro motor 219 and other components, and the air inlet holes 14 are provided to facilitate the gas discharged from the one-way valve 217 to be dissipated from the main body housing 1.

[0029] When in use, first place the small oxygen cylinder 4 in the tray 101, and place the negative pressure bottle 7 in the tray 2 102, and make sure that the negative pressure bottle 7 is filled with desiccant, plug one end of the cannula 8 into the one-way valve 2 218, wrap two elastic straps 105 around the patient's waist, and carry the main body shell 1 around the waist by gluing them together with the thorny Velcro and the fleece Velcro; after cleaning the patient's wound, cover the wound with the polyurethane foam dressing 301, insert the negative pressure suction tube 302 and the oxygen inlet tube 303 into the two unconnected jacks of the polyurethane foam dressing 301 respectively, and then cover and wrap the negative pressure suction tube 302 and the oxygen inlet tube 303 with the adhesive tape 304 to ensure that the outside air does not enter; then plug the end of the oxygen inlet tube 303 away from the polyurethane foam dressing 301 into the air nozzle 6, plug one end of the negative pressure suction tube 302 into the negative pressure connector 10, and operate the panel 103 starts the micro motor 219, the micro motor 219 drives the No. 1 pulley 220 to rotate, and the No. 2 pulley 222 is rotated through the synchronous belt 221, thereby driving the No. 1 shaft 213 and related components to move, so that the piston 202 reciprocates back and forth in the negative pressure cylinder 201, and the characteristics of the one-way valve 1 217 and the one-way valve 2 218 are used to generate negative pressure in the negative pressure bottle 7 and the polyurethane foam dressing 301; at the same time, the outlet valve 5 is opened to attract the oxygen in the small oxygen cylinder 4 into the polyurethane foam dressing 301 through the oxygen inlet tube 303 for oxygen therapy; during the negative pressure suction process, the wound surface fluid is discharged into the negative pressure bottle 7 along the negative pressure suction tube 302 and absorbed by the desiccant, and the top cover 9 can be opened to replace the desiccant, and at the same time, the speed of the micro motor 219 can be adjusted by the frequency converter 12, thereby adjusting the size of the negative pressure on the wound surface, and the heat dissipation hole 13 and the air inlet hole 14 are respectively used for heat dissipation of components and exhaust of gas.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable negative pressure oxygen supply device for chronic wound treatment, characterized in that: include, A mainframe housing (1), with tray 1 (101) and tray 2 (102) fixedly connected on both sides thereof, an operation panel (103) being mounted on the top of the mainframe housing (1), and hanging ears (104) fixedly connected on both sides of the mainframe housing (1), with binding straps (105) sewn inside the hanging ears (104); A negative pressure suction component (2) is arranged inside a main body housing (1), and the negative pressure suction component (2) comprises a negative pressure cylinder (201), a piston (202) is arranged inside the negative pressure cylinder (201), an insertion rod (203) is inserted into the interior of the piston (202), a U-shaped block (204) is fixedly connected to the top of the insertion rod (203), a connecting rod (205) is rotatably connected to the inner side of the U-shaped block (204), a ball head (206) is fixedly connected to the top of the connecting rod (205), a ball sleeve (207) is rotatably connected to the outer surface of the ball head (206), a rotating shaft (208) is fixedly connected to the outer surface of the ball sleeve (207), and one end of the rotating shaft (208) is rotatably connected to A U-shaped bracket (209), the outer surface of which is fixedly connected to a rotating rod (210), the two ends of which are rotatably connected to a connecting plate 1 (211) and a connecting plate 2 (212), the outer surface of the connecting plate 1 (211) is fixedly connected to a shaft rod 1 (213), the outer surface of the connecting plate 2 (212) is fixedly connected to a shaft rod 2 (214), the bottom end of the negative pressure cylinder (201) is plugged with an air outlet pipe (215) and an air intake pipe (216), the bottom end of the air outlet pipe (215) is threadedly connected to a one-way valve 1 (217), one end of the air intake pipe (216) is threadedly connected to a one-way valve 2 (218), and the top end of the one-way shaft rod (213) is connected to a driving component; A dressing assembly (3) comprises a polyurethane foam dressing (301), wherein a negative pressure suction tube (302) and an oxygen inlet tube (303) are inserted into the interior of the polyurethane foam dressing (301).

2. A portable negative pressure oxygen supply device for chronic wound treatment according to claim 1, characterized in that: Two of the binding straps (105) are provided, the two binding straps (105) are elastic, and the outer surface of one of the binding straps (105) is sewn and connected with a thorn-surface Velcro, and the outer surface of the other binding strap (105) is sewn and connected with a fleece-surface Velcro.

3. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 1, characterized in that: Two insertion holes are provided on the outer side of the polyurethane foam dressing (301), a negative pressure suction tube (302) is inserted into one of the insertion holes, and an oxygen supply tube (303) is inserted into the other insertion hole, the two insertion holes are not connected to each other, and an adhesive tape (304) is adhered to the upper surface of the polyurethane foam dressing (301).

4. A portable negative pressure oxygen supply device for chronic wound treatment according to claim 1, characterized in that: A small oxygen cylinder (4) is placed inside the tray 1 (101); a gas outlet valve (5) is threadedly connected to the top of the small oxygen cylinder (4); a gas nozzle (6) is fixedly connected to the outer surface of the gas outlet valve (5); and the gas nozzle (6) is plugged into the end of the oxygen inlet tube (303) away from the polyurethane foam dressing (301).

5. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 1, characterized in that: A negative pressure bottle (7) is placed inside the tray 2 (102), a cannula (8) is fixedly connected to the outer surface of the negative pressure bottle (7) near the bottom, the top of the negative pressure bottle (7) is threadedly connected to the top cover (9), the top of the top cover (9) is fixedly connected to a negative pressure connector (10), and one end of the negative pressure connector (10) is plugged into a negative pressure suction tube (302).

6. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 5, characterized in that: The interior of the negative pressure bottle (7) is filled with a desiccant, one end of the cannula (8) located inside the negative pressure bottle (7) has a filter screen inside, and the other end of the cannula (8) is plugged with a second one-way valve (218).

7. A portable negative pressure oxygen supply device for chronic wound treatment according to claim 1, characterized in that: The driving component comprises a micro motor (219), the output shaft of the micro motor (219) is connected to a first pulley (220), the first pulley (220) is transmission-connected to a synchronous belt (221), the synchronous belt (221) is transmission-connected to a second pulley (222), and the bottom center of the second pulley (222) is fixedly connected to a first shaft (213).

8. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 1, characterized in that: The first shaft rod (213) and the second shaft rod (214) are coaxial, and the bottom end of the second shaft rod (214) is rotatably connected to the ear plate (223), and the ear plate (223) is fixedly connected to the outer surface of the negative pressure cylinder (201).

9. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 1, characterized in that: The outer surface of the negative pressure cylinder (201) is sleeved with a first layer plate (106), and a second layer plate (107) is arranged at the bottom of the negative pressure cylinder (201), a storage battery (11) is installed on the top of the first layer plate (106), and a frequency converter (12) is installed on the top of the second layer plate (107).

10. A portable negative pressure oxygen supply device for treating chronic wounds according to claim 1, characterized in that: The outer surface of the mainframe housing (1) is provided with heat dissipation holes (13), and the bottom of the mainframe housing (1) is provided with air inlet holes (14).

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