Pressure sore prevention device convenient to ventilate

Abstract

The utility model relates to the field of peaceful treatment and protection, and discloses a pressure sore prevention device convenient to ventilate, which comprises a bracket, a control mechanism and an air inlet structure, four springs are fixedly arranged close to the middle between the inner walls of the upper side and the lower side of the bracket, a plurality of first through holes are formed in the upper end of the bracket, and eight strip-shaped air bags are fixedly arranged at the upper end of the bracket. First through grooves are formed in the front side and the rear side of the bracket correspondingly, and first filter screens are fixedly arranged in the two first through grooves correspondingly. The hip of a patient is supported through the bracket, the eight strip-shaped air bags are arranged, the air bags are divided into two groups and are connected to the air pump through different ventilation pipes, and the stepping motor drives the belt wheel, so that the air bags are alternately inflated and deflated within a certain period of time, the pressure of the contact surface is dynamically adjusted, and the long-term pressure is reduced; and through holes are formed in the upper end of the device bracket, so that ventilation is facilitated, and the buttocks are kept dry.

Description

Technical Field

[0001] This utility model relates to the field of palliative care, and in particular to a pressure ulcer prevention device that facilitates ventilation. Background Technology

[0002] Palliative care, also known as hospice care, is a form of cancer palliative treatment. It provides essential support to patients and their families through a team of doctors, nurses, volunteers, social workers, medical professionals, and psychologists. While reducing physical pain, it focuses on the patient's emotional well-being and provides emotional support, allowing them to pass away with dignity. Patients often lie in bed during severe illness, and prolonged pressure, friction, and shearing forces can cause ischemia and hypoxia in the skin and underlying tissues. Therefore, regular repositioning is necessary to prevent pressure sores.

[0003] Existing pressure ulcer prevention devices for patients mostly use a single, integrated airbag that requires inflation and deflation. However, the pressure points on the skin are often fixed, making it difficult to frequently change the pressure points between the airbag and the skin after inflation. This results in poor pressure ulcer prevention and a cumbersome inflation / deflation process. Therefore, those skilled in the art have provided a pressure ulcer prevention device with improved ventilation to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a ventilation-friendly pressure ulcer prevention device. This device can dynamically adjust the pressure on the contact surface by alternately inflating and deflating airbags at different locations, thereby reducing long-term pressure and preventing the formation of pressure ulcers.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pressure ulcer prevention device with easy ventilation includes a bracket, a control mechanism, and an air intake structure. Four springs are fixedly installed between the inner walls of the upper and lower sides of the bracket near the middle. Multiple No. 1 through holes are opened at the upper end of the bracket. Eight strip-shaped airbags are fixedly installed at the upper end of the bracket. No. 1 through slots are opened on both the front and rear sides of the bracket. No. 1 filters are fixedly installed inside the two No. 1 through slots. The bracket and the control mechanism are connected by the air intake structure, which is located inside the bracket.

[0007] Furthermore, the control mechanism includes a housing and a cylinder. A cover plate is bolted to the upper end of the housing. A battery is fixedly installed at the rear of one side of the bottom surface of the housing. A stepper motor is fixedly installed at the rear of the other side of the bottom surface of the housing. An air pump is fixedly installed at the front of the bottom surface of the housing. A control panel is fixedly installed at the front end of the housing.

[0008] Furthermore, a second through groove is provided on the front side of one side of the box body, and multiple support plates are fixedly installed between the inner walls of the upper and lower sides of the second through groove. A second filter screen is fixedly installed on one side of the second through groove inside the box body.

[0009] Furthermore, an air outlet pipe is fixedly installed at the air pump inlet, and a bearing is fixedly fitted around the air outlet pipe. A sleeve is fixedly fitted on the outer wall of the outer ring of the bearing. Both the sleeve and the stepper motor output shaft are fixedly fitted with pulleys, and the two pulleys are connected by a transmission belt.

[0010] Furthermore, the cylinder and the sleeve are fixedly connected at one end, a first fixing cylinder is fixedly installed at the rear of one side of the cylinder, two second through holes are opened at the front of one side of the box body, and a second fixing cylinder is fixedly installed at the two second through holes on the inner wall of one side of the box body. Rubber ring blocks are fixedly fitted around the two second fixing cylinders and the first fixing cylinder.

[0011] Furthermore, the air intake structure includes a No. 1 connecting pipe and a No. 2 connecting pipe. Two No. 1 vent pipes are fixedly installed at the middle of the upper end of the No. 1 connecting pipe. Two No. 2 vent pipes are fixedly installed at both sides of the upper end of the No. 1 connecting pipe. Two No. 3 vent pipes are fixedly installed at the middle of the upper end of the No. 2 connecting pipe. Four No. vent pipes are fixedly installed at both sides of the upper end of the No. 2 connecting pipe.

[0012] Furthermore, a No. 1 air inlet pipe and a No. 2 air inlet pipe are respectively fixedly installed at the middle of opposite sides of the No. 1 connecting pipe and the No. 2 connecting pipe. The two No. 1 air inlets and the two No. 2 air inlets respectively penetrate into the second, fourth, sixth and eighth strip-shaped air bladders from one side of the eight strip-shaped air bladders. The two No. 3 air inlets and the two No. 4 air inlets respectively penetrate into the first, third, fifth and seventh strip-shaped air bladders from one side of the eight strip-shaped air bladders. The No. 1 air inlet pipe and the No. 2 air inlet pipe both penetrate the bracket and are respectively fixed inside the two No. 2 through holes.

[0013] This utility model has the following beneficial effects:

[0014] This utility model proposes a ventilation-friendly pressure ulcer prevention device. A support frame elevates the patient's buttocks. Eight strip-shaped airbags are mounted on the upper side of the support frame. The first, third, fifth, and seventh airbags are connected from one side via two No. 3 and No. 4 ventilation tubes. The second, fourth, sixth, and eighth airbags are connected via two No. 1 and No. 2 ventilation tubes. The output shaft of a stepper motor and the air pump outlet pipe are connected to a sleeve via a bearing and a pulley. A No. 1 fixed cylinder and one No. 2 fixed cylinder are fixed to one side of the sleeve. Activating the air pump inflates the first, third, fifth, and seventh airbags to support and cushion the patient's buttocks. After a while... After a period of time, the motor drives the pulley to rotate, causing the sleeve to rotate. The first fixed sleeve rotates 180 degrees and aligns with the second fixed sleeve. The air pump inflates the strip-shaped airbags located at the second, fourth, sixth, and eighth positions, while the airbags at the first, third, fifth, and seventh positions are not connected to the air pump, allowing the air to be released. The air pump leaks air. By inflating and deflating, the pressure on the contact surface is dynamically adjusted, thereby reducing long-term pressure on the skin and underlying tissues. This helps prevent poor blood flow and tissue hypoxia caused by continuous pressure, thus reducing the risk of pressure ulcers. The strip-shaped airbags provide support, leaving a gap between the support and the skin. Multiple No. 1 ventilation holes are provided at the upper end of the support for ventilation, keeping the patient's buttocks dry. Attached Figure Description

[0015] Figure 1 This is an isometric schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the orthographic section of this utility model;

[0017] Figure 3 This is a top-section isometric view of the control mechanism of this utility model;

[0018] Figure 4 This is an isometric schematic diagram of the air intake structure of this utility model;

[0019] Figure 5 This is an enlarged schematic diagram of point A in this utility model;

[0020] Figure 6 This is an enlarged schematic diagram of section B of this utility model.

[0021] Legend:

[0022] 1. Bracket; 2. Control mechanism; 3. No. 1 through hole; 4. Strip-shaped airbag; 5. Spring; 6. Air intake structure; 7. No. 1 through slot; 8. No. 1 filter screen; 201. Housing; 202. Cover plate; 203. Control panel; 204. Battery; 205. Stepper motor; 206. Air pump; 207. Pulley; 208. Drive belt; 209. No. 2 through slot; 210. Support plate; 211. No. 2 filter screen; 21 2. Air outlet pipe; 213. Bearing; 214. Sleeve; 215. Cylinder; 216. Fixed cylinder No. 1; 217. Through hole No. 2; 218. Fixed cylinder No. 2; 219. Rubber ring block; 601. Connecting pipe No. 1; 602. Air vent pipe No. 1; 603. Air vent pipe No. 2; 604. Connecting pipe No. 2; 605. Air vent pipe No. 3; 606. Air vent pipe No. 4; 607. Air inlet pipe No. 1; 608. Air inlet pipe No. 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1 , Figure 2 One embodiment provided by this utility model:

[0025] A pressure ulcer prevention device with easy ventilation includes a bracket 1, a control mechanism 2, and an air intake structure 6. Four springs 5 ​​are fixedly installed between the inner walls of the upper and lower sides of the bracket 1 near the middle. Multiple No. 1 through holes 3 are opened at the upper end of the bracket 1. Eight strip-shaped air bags 4 are fixedly installed at the upper end of the bracket 1. No. 1 through slots 7 are opened on both the front and rear sides of the bracket 1. No. 1 filters 8 are fixedly installed inside the two No. 1 through slots 7. The bracket 1 and the control mechanism 2 are connected by the air intake structure 6, which is located inside the bracket 1.

[0026] Specifically, by setting up a support bracket 1 to support the patient's buttocks and prevent pressure sores, multiple strip-shaped airbags 4 are set on the upper side of the support bracket 1 to support the patient's buttocks. By alternating the expansion of airbags in different positions, pressure sores caused by prolonged contact between airbags and skin can be avoided. By setting up a first channel 7 and a first filter screen 8, and opening a first through hole 3 on the upper side of the support bracket 1, air can circulate under the patient's buttocks to keep them dry.

[0027] Reference Figure 3 , Figure 5 , Figure 6The control mechanism 2 includes a housing 201 and a cylinder 215. A cover plate 202 is bolted to the upper end of the housing 201. A battery 204 is fixedly installed on one rear side of the bottom surface of the housing 201. A stepper motor 205 is fixedly installed on the other rear side of the bottom surface of the housing 201. An air pump 206 is fixedly installed on the front side of the bottom surface of the housing 201. A control panel 203 is fixedly installed at the front end of the housing 201. A second through groove 209 is opened on one front side of the housing 201. Multiple support plates 210 are fixedly installed between the upper and lower inner walls of the second through groove 209. A second filter screen 211 is fixedly installed on one side of the second through groove 209 inside the housing 201.

[0028] An air outlet pipe 212 is fixedly installed at the air inlet of the air pump 206. A bearing 213 is fixedly fitted around the air outlet pipe 212. A sleeve 214 is fixedly fitted on the outer wall of the outer ring of the bearing 213. A pulley 207 is fixedly fitted on both the sleeve 214 and the output shaft of the stepper motor 205. The two pulleys 207 are connected by a transmission belt 208. One end of the cylinder 215 and the sleeve 214 are fixedly connected. A first fixed cylinder 216 is fixedly installed at the rear of one side of the cylinder 215. Two second through holes 217 are opened at the front of one side of the box body 201. A second fixed cylinder 218 is fixedly installed at the two second through holes 217 on the inner wall of one side of the box body 201. Rubber ring blocks 219 are fixedly fitted around the two second fixed cylinders 218 and the first fixed cylinder 216.

[0029] Specifically, by setting the strip-shaped airbags 4 located at positions 1, 3, 5, and 7 to be connected via two No. 3 air pipes 605 and No. 4 air pipes 606, and the strip-shaped airbags 4 located at positions 2, 4, 6, and 8 to be connected via two No. 1 air pipes 602 and No. 2 air pipes 603, the No. 1 fixed cylinder 216 connected to the air outlet of the air pump 206 can only be aligned with one No. 2 fixed cylinder 218. The No. 1 air inlet pipe 607 and the No. 2 air inlet pipe 608 are respectively connected to two No. 2 fixed cylinders 218, so that after the No. 1 fixed cylinder 216 is aligned with any point of the No. 2 fixed cylinder 218, the air pump 206 can inflate it, and the stepper motor 205 can rotate the sleeve 214, causing the No. 1 fixed cylinder 216 to rotate 180 degrees so that it can be aligned with the other No. 2 fixed cylinder 218, thus enabling... The strip-shaped airbags 4 located at positions 1, 3, 5, and 7 inflate while those located at positions 2, 4, 6, and 8 deflate, allowing for changes in the contact position between the strip-shaped airbags 4 and the patient's buttocks, thus avoiding prolonged contact and skin discomfort. Rubber rings 219 are fixedly fitted around the first and second fixing cylinders 216 and 218. After the first and second fixing cylinders 216 and 218 are aligned, the tight contact of the rubber rings 219 can seal the air and reduce leakage. A cover plate 202 is provided on the upper side of the housing 201 for easy disassembly and maintenance of internal components. A timer controller can be installed inside the housing 201 to control the stepper motor 205 and the air pump 206 at regular intervals, thereby enabling automatic alternating inflation and deflation of the strip-shaped airbags 4.

[0030] Reference Figure 4 The intake structure 6 includes a first connecting pipe 601 and a second connecting pipe 604. Two first vent pipes 602 are fixedly installed near the middle of the upper end of the first connecting pipe 601. Second vent pipes 603 are fixedly installed on both sides of the upper end of the first connecting pipe 601. Two third vent pipes 605 are fixedly installed near the middle of the upper end of the second connecting pipe 604. Fourth vent pipes 606 are fixedly installed on both sides of the upper end of the second connecting pipe 604. The middle of opposite sides of the first connecting pipe 601 and the second connecting pipe 604 are respectively fixed... The system is equipped with a No. 1 air inlet pipe 607 and a No. 2 air inlet pipe. Two No. 1 air vent pipes 602 and No. 2 air vent pipes 603 respectively penetrate into the interior of the second, fourth, sixth and eighth strip-shaped airbags 4 from one side. Two No. 3 air vent pipes 605 and No. 4 air vent pipes 606 respectively penetrate into the interior of the first, third, fifth and seventh strip-shaped airbags 4 from one side. Both the No. 1 air inlet pipe 607 and the No. 2 air inlet pipe 608 penetrate the bracket 1 and are respectively fixed inside the two No. 2 through holes 217.

[0031] Specifically, by setting two No. 1 ventilation tubes 602 and No. 2 ventilation tubes 603 to penetrate into the strip-shaped airbags 4 located at the first, third, fifth, and seventh positions, and by setting two No. 1 ventilation tubes 602 and No. 2 ventilation tubes 603 to penetrate into the No. 1 connecting tube 601, the four ventilation tubes are connected. Similarly, by setting two No. 3 ventilation tubes 605 and No. 4 ventilation tubes 606 to penetrate into the strip-shaped airbags 4 located at the first, third, fifth, and seventh positions, and by setting two No. 3 ventilation tubes 605 and No. 4 ventilation tubes 606 to penetrate into the No. 2 connecting tube 604, one... Connecting pipe 601 and connecting pipe 604 pass through the housing 201 and connect to the two second-level air cylinders, so that air can be pumped in by air pump 206. When the first fixed cylinder 216 and one of the second fixed cylinders 218 are connected, the strip-shaped airbags 4 located at the first, third, fifth and seventh positions will expand, while the other second fixed cylinder 218 will release the gas in the strip-shaped airbags 4 located at the first, third, fifth and seventh positions. Thus, it is possible to form a group of four strip-shaped airbags 4, so that the expansion of the four strip-shaped airbags 4 in a group can be controlled simultaneously.

[0032] Working principle: When in use, the device is placed under the patient's buttocks. By activating the air pump 206, air is pumped through the air outlet pipe 212, cylinder 215, first fixed cylinder 216, and aligned second fixed cylinder 218. This air then enters the first connecting pipe 601 via the first air inlet pipe 607, and through two first air passage pipes 602 and second air passage pipe 603, into the strip-shaped airbags 4 located at positions 2, 4, 6, and 8, causing them to inflate and support the patient's buttocks. After a period of support, the stepper motor 205 is activated, causing the sleeve 214 to rotate 180 degrees via the pulley 207. The pressure is adjusted by 10 degrees, aligning the first fixed cylinder 216 and the other second fixed cylinder 218. The air pump 206, through the air outlet pipe 212, cylinder 215, the first fixed cylinder 216 and the other second fixed cylinder 218 aligned with it, introduces gas through the second air inlet pipe 608 into the second connecting pipe 604. The gas then enters the strip-shaped airbags 4 located at the first, third, fifth and seventh positions through the two third air pipes 605 and the fourth air pipe 606, causing them to inflate. Meanwhile, the second air inlet pipe 608 connected to the strip-shaped airbags 4 located at the second, fourth, sixth and eighth positions is not sealed, causing the internal gas to escape. This changes the support position and reduces pressure sores.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure ulcer prevention device with easy ventilation, comprising a bracket (1), a control mechanism (2), and an air intake structure (6), characterized in that: Four springs (5) are fixedly installed between the inner walls of the upper and lower sides of the bracket (1) near the middle. Multiple No. 1 through holes (3) are opened at the upper end of the bracket (1). Eight strip-shaped airbags (4) are fixedly installed at the upper end of the bracket (1). No. 1 through slots (7) are opened on both the front and rear sides of the bracket (1). No. 1 filter screens (8) are fixedly installed inside the two No. 1 through slots (7). The bracket (1) and the control mechanism (2) are connected by an air intake structure (6). The air intake structure (6) is installed inside the bracket (1).

2. The pressure ulcer prevention device with easy ventilation according to claim 1, characterized in that: The control mechanism (2) includes a housing (201) and a cylinder (215). A cover plate (202) is bolted to the upper end of the housing (201). A storage battery (204) is fixedly installed on one side of the bottom surface of the housing (201) at the rear. A stepper motor (205) is fixedly installed on the other side of the bottom surface of the housing (201) at the rear. An air pump (206) is fixedly installed on the bottom surface of the housing (201) at the front. A control panel (203) is fixedly installed at the front end of the housing (201).

3. The pressure ulcer prevention device with easy ventilation according to claim 2, characterized in that: The box (201) has a second through groove (209) on one side near the front. Multiple support plates (210) are fixedly installed between the upper and lower inner walls of the second through groove (209). A second filter screen (211) is fixedly installed on one side of the second through groove (209) inside the box (201).

4. A pressure ulcer prevention device with easy ventilation according to claim 2, characterized in that: An air outlet pipe (212) is fixedly installed at the air inlet of the air pump (206). A bearing (213) is fixedly fitted around the air outlet pipe (212). A sleeve (214) is fixedly fitted on the outer wall of the outer ring of the bearing (213). A pulley (207) is fixedly fitted on both the sleeve (214) and the output shaft of the stepper motor (205). The two pulleys (207) are connected by a transmission belt (208).

5. A pressure ulcer prevention device with easy ventilation according to claim 2, characterized in that: The cylinder (215) and sleeve (214) are fixedly connected at one end. A first fixing cylinder (216) is fixedly installed at the rear of one side of the cylinder (215). Two second through holes (217) are opened at the front of one side of the box body (201). A second fixing cylinder (218) is fixedly installed at the two second through holes (217) on the inner wall of one side of the box body (201). Rubber ring blocks (219) are fixedly fitted around the two second fixing cylinders (218) and the first fixing cylinder (216).

6. A pressure ulcer prevention device with easy ventilation according to claim 1, characterized in that: The air intake structure (6) includes a first connecting pipe (601) and a second connecting pipe (604). Two first vent pipes (602) are fixedly installed at the middle of the upper end of the first connecting pipe (601). Two second vent pipes (603) are fixedly installed at both sides of the upper end of the first connecting pipe (601). Two third vent pipes (605) are fixedly installed at the middle of the upper end of the second connecting pipe (604). Four vent pipes (606) are fixedly installed at both sides of the upper end of the second connecting pipe (604).

7. A pressure ulcer prevention device with easy ventilation according to claim 6, characterized in that: The No. 1 connecting pipe (601) and the No. 2 connecting pipe (604) are respectively fixedly provided with a No. 1 air inlet pipe (607) and a No. 2 air inlet pipe at the middle of opposite sides. The two No. 1 air inlets (602) and the two No. 2 air inlets (603) respectively pass through the interior of the second, fourth, sixth and eighth strip-shaped airbags (4) from one side. The two No. 3 air inlets (605) and the two No. 4 air inlets (606) respectively pass through the interior of the first, third, fifth and seventh strip-shaped airbags (4) from one side. The No. 1 air inlet pipe (607) and the No. 2 air inlet pipe (608) both pass through the bracket (1) and are respectively fixed inside the two No. 2 through holes (217).

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