CN111166580B

CN111166580B - Prevent pressure damage sick bed

Info

Publication number: CN111166580B
Application number: CN202010000599.4A
Authority: CN
Inventors: 蔡福满; 江小琼; 董宁; 邵洁益; 王智乾; 曾珊珊; 胡婷婷; 严侨燚; 詹红园
Original assignee: Wenzhou Medical University
Current assignee: Wenzhou Medical University
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2021-07-02
Anticipated expiration: 2040-01-02
Also published as: CN111166580A

Abstract

The invention discloses a pressure damage prevention sickbed which comprises a frame, wherein an upper bed plate and a lower bed plate are arranged on the frame, and a plurality of vent holes are formed in the upper bed plate and the lower bed plate; a first driving mechanism is arranged in the machine frame and drives the upper bed plate to turn over through a connecting rod mechanism; a second driving mechanism and a massage ventilation mechanism are further arranged in the rack, the massage ventilation mechanism comprises a rotating shaft which is rotatably arranged at the bottom of the rack, at least two concave parts are arranged at the top end of the rotating shaft, a sliding sleeve is sleeved at the upper part of the rotating shaft, a convex part which is matched with the concave part on the rotating shaft is arranged on the inner end surface of the sliding sleeve, a limiting frame which is matched with the sliding sleeve is arranged on the rack, and an extrusion block is arranged at the top end of the sliding sleeve; the second driving mechanism drives the rotating shaft of the massage ventilating mechanism to rotate, so that the sliding sleeve slides up and down along the vertical direction of the limiting frame, and the sliding sleeve drives the extrusion block to penetrate through the corresponding vent hole in the lower bed plate to perform corresponding axial movement. The invention has good effect of preventing pressure injury.

Description

Prevent pressure damage sick bed

Technical Field

The invention relates to the technical field of medical auxiliary instruments, in particular to a pressure injury prevention sickbed.

Background

Pressure injury is a common complication of critical patients or elderly patients who are clinically bedridden for a long time, is local tissue injury caused by factors such as pressure, friction, shearing force, moisture and the like, is usually better at bony prominences, particularly better at sacrum, heel and ischia, and is manifested as intact skin or open ulcer. The occurrence of stress injuries can subject patients to intolerable pain, increasing the risk of infection, and even leading to their death. In order to prevent the occurrence of the pressure injury, the patient is often instructed to change the lying position and perform local massage in clinic to prevent the occurrence of the pressure injury.

However, the existing sickbed has poor air permeability and cannot achieve the effect of preventing pressure injury. Meanwhile, the patient is massaged or the lying position is changed manually, so that the labor intensity is high, and the cost is high.

Disclosure of Invention

The invention aims to provide a sickbed capable of preventing pressure injury. The invention has the advantage of strong air permeability, can help patients to change lying positions, automatically massage the patients and play a good role in preventing pressure injury.

The technical scheme of the invention is as follows: a pressure injury prevention sickbed comprises a frame, wherein an upper bed plate corresponding to the upper half of a human body and a lower bed plate corresponding to the lower half of the human body are arranged on the frame, and a plurality of vent holes are formed in the upper bed plate and the lower bed plate; a first driving mechanism is arranged in the machine frame and drives the upper bed plate to turn over through a connecting rod mechanism; the machine frame is also internally provided with a second driving mechanism and a massage ventilation mechanism, the massage ventilation mechanism comprises a rotating shaft rotatably arranged at the bottom of the machine frame, the top end of the rotating shaft is provided with at least two concave parts, the upper part of the rotating shaft is sleeved with a sliding sleeve, the inner end surface of the sliding sleeve is provided with a convex part matched with the concave part on the rotating shaft, the machine frame is provided with a limiting frame matched with the sliding sleeve, and the top end of the sliding sleeve is provided with an extrusion block; the second driving mechanism drives the rotating shaft of the massage ventilating mechanism to rotate, so that the sliding sleeve slides up and down along the vertical direction of the limiting frame, and the sliding sleeve drives the extrusion block to penetrate through the corresponding vent hole in the lower bed plate to perform corresponding axial movement.

In the pressure damage prevention sickbed, the first driving mechanism includes a first driving motor, a driving pulley, a driven pulley, a driving belt, a ball screw, a first screw nut seat and a second screw nut seat, the first driving motor, the first screw nut seat and the second screw nut seat are mounted on the frame, a motor shaft of the first driving motor is connected with the driving pulley, the ball screw penetrates through the first screw nut seat and the second screw nut seat, one end of the ball screw is connected with the driven pulley, and the driving belt is wrapped on the driving pulley and the driven pulley.

In the pressure damage prevention sickbed, the link mechanism comprises a pushing frame, two first V-shaped rod pieces are hinged to the pushing frame, the tail ends of the first V-shaped rod pieces are hinged to second V-shaped rod pieces, two ends of each second V-shaped rod piece, which are fixed to the bottom of the lower bed plate, on the upper portion of the pushing frame are respectively provided with a sliding block, and the frame is provided with a sliding rail matched with the sliding block; and the lower part of the pushing frame is fixedly connected with a moving block matched with the ball screw.

In the aforesaid prevent pressure damage sick bed, second actuating mechanism is including setting up the second driving motor in the frame, and second driving motor's motor shaft is connected with drive sprocket, the outside of sliding sleeve is equipped with passive sprocket, the outside meshing of passive sprocket has the chain, just the periphery and the drive sprocket mesh mutually.

In the sickbed capable of preventing pressure damage, the outer side of the sliding sleeve is provided with the sliding groove, and the limiting frame is provided with the limiting sliding plate matched with the sliding groove.

In the aforesaid prevent pressure damage sick bed, the extrusion piece includes base, upper cover and a plurality of massage pole, a plurality of circular slots have been seted up on the base, the massage pole sets up in the circular slot, and the periphery of massage pole is equipped with the spacing ring, and the periphery cover of massage pole is equipped with the spring, the bottom of spring is supported bottom the circular slot, and the bottom at the spacing ring is supported on the top of spring, the upper cover is fixed in base upper portion, and covers on and sets up a plurality of confessions and correspond the through-hole that the massage pole carried out the axial and slide.

In the sickbed capable of preventing pressure damage, the upper bed plate and the lower bed plate are respectively provided with the air cushion unit, and the air cushion units are connected with the upper bed plate and the lower bed plate through the magic tapes.

In the above sickbed for preventing pressure injury, the air cushion unit includes a plurality of square air bags distributed in a matrix.

In the sickbed for preventing pressure damage, the frame is provided with a cooling fan at a position corresponding to the upper bed plate.

In the sickbed for preventing pressure damage, the bottom of the frame is provided with a plurality of universal wheels.

Compared with the prior art, the upper bed plate corresponding to the upper half of the human body and the lower bed plate corresponding to the lower half of the human body are arranged on the frame, the upper bed plate and the lower bed plate are both provided with a plurality of vent holes, and the vent holes can increase the air permeability of the bed plate, play a role in ventilation and heat dissipation and have a certain function of preventing pressure injury. The bed board overturns in the drive of the first actuating mechanism in the frame, can help the patient to change the lying position, thereby preventing the local tissue from being stressed for a long time to generate pressure damage. The rotating shaft on the massage ventilating mechanism is driven to rotate through the second driving mechanism, the sliding sleeve is sleeved on the rotating shaft, the contact surface of the sliding sleeve is a circulation process that the concave part and the convex part are gradually matched with and gradually separated when the rotating shaft rotates, the sliding sleeve is limited by the limiting frame, and when the rotating shaft rotates, the sliding sleeve moves up and down, so that the extrusion block is driven to penetrate through the corresponding heat dissipation holes in the lower bed plate to massage the lower limbs of a person, and the effect of promoting blood circulation is achieved. Therefore, the invention has the advantage of strong air permeability, can help the patient to change the lying position, automatically massage the patient and play a good role in preventing pressure injury.

According to the first driving mechanism, the ball screw is driven to rotate by the first driving motor in a belt pulley transmission mode, so that the connecting rod mechanism is driven to move, the function of overturning the upper bed plate is finally realized, the advantages of stable transmission and low noise are achieved, and a patient can feel more comfortable when the lying position is changed.

The second driving mechanism of the invention drives the massage ventilation mechanism to operate by the second driving motor in a chain transmission mode, has strong overload capacity, can avoid the phenomenon of slipping and is suitable for people with different weights.

The limiting sliding plate on the limiting frame is matched with the sliding groove on the outer side of the sliding sleeve, so that the effect of limiting the circumferential direction of the sliding sleeve is realized, and the sliding sleeve can only slide along the axial direction.

The massage rod on the extrusion block has the function of stretching, and the spring provides elasticity for the massage rod, so that the change and control of the force of the massage rod are realized, and the massage rod can be prevented from excessively extruding a human body, thereby causing discomfort.

The upper bed board and the lower bed board are respectively provided with the air cushion units, so that the condition that local tissues of a patient are pressed can be relieved through the air cushion units, and further skin injury and pressure injury are prevented. And the air cushion unit is connected with the upper bed board and the lower bed board through magic tapes, so that the assembly and disassembly are very convenient.

The air cushion unit comprises a plurality of square air bags distributed in a matrix, and the design can enable the air cushion unit to effectively support a patient and prevent the patient from discomfort caused by the fact that the contact area of the air cushion unit on the patient is increased due to local subsidence.

The cooling fan is arranged on the position, opposite to the upper bed plate, of the machine frame, so that the ventilation performance of the machine frame can be enhanced, and the functions of clearing damp and cooling are achieved.

The bottom of the rack is provided with the plurality of universal wheels, so that the rack is convenient to integrally move.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a schematic view of the first drive mechanism of the present invention;

FIG. 3 is a schematic structural view of the linkage mechanism of the present invention;

FIG. 4 is a schematic structural view of a second drive mechanism of the present invention;

FIG. 5 is a schematic view of the construction of the extrusion block of the present invention;

FIG. 6 is a partial cross-sectional view of the extrusion block of the present invention;

FIG. 7 is a schematic structural view of a convex portion of a rotating shaft according to the present invention;

FIG. 8 is a schematic structural view of a recess of the sliding sleeve of the present invention;

fig. 9 is a right side view of the present invention.

The labels in the figures are: 1. a frame; 2. a bed board is arranged; 3. a bed plate is arranged; 4. a vent hole; 5. a first drive mechanism; 6. a link mechanism; 7. a second drive mechanism; 8. a massage ventilation mechanism; 9. an air cushion unit; 10. magic tape; 11. a square air bag; 12. a heat radiation fan; 13. a universal wheel; 14. a first drive motor; 15. a drive pulley; 16. a driven pulley; 17. a drive belt; 18. a first lead screw nut seat; 19. a second lead screw nut; 20. a ball screw; 21. a moving block; 22. a pushing frame; 23. a through hole; 24. a first V-shaped bar member; 25. a second V-shaped bar member; 26. a slide rail; 27. a slider; 28. a second drive motor; 29. a drive sprocket; 30. a rotating shaft; 31. a sliding sleeve; 32. a driven sprocket; 33. a limiting frame; 34. a limiting sliding plate; 35. a chute; 36. a chain; 37. extruding the block; 38. a base; 39. an upper cover; 40. a massage rod; 41. a circular groove; 42. a spring; 43. a limiting ring; 44. a convex portion; 45. a recess.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.

Example (b): a pressure injury prevention sickbed is shown in figures 1-9 and comprises a frame 1, wherein an upper bed plate 2 corresponding to the upper half of a human body and a lower bed plate 3 corresponding to the lower half of the human body are arranged on the frame 1, and a plurality of vent holes 4 are formed in the upper bed plate 2 and the lower bed plate 3; a first driving mechanism 5 is arranged in the frame 1, and the first driving mechanism 5 drives the upper bed plate 2 to turn over through a connecting rod mechanism 6; still be equipped with second actuating mechanism 7 and massage ventilation mechanism 8 in the frame 1, massage ventilation mechanism 8 sets up in the pivot 30 of frame 1 bottom including rotating, the top of pivot 30 is equipped with two at least concave parts 45, the upper portion cover of pivot 30 is equipped with sliding sleeve 31, and the interior terminal surface of sliding sleeve 31 is equipped with the convex part 44 that agrees with concave part 45 on the pivot 30 mutually, just be equipped with the spacing 33 with sliding sleeve 31 looks adaptation in the frame 1, the outside of sliding sleeve 31 is equipped with spout 35, be equipped with the spacing slide 34 that agrees with mutually with spout 35 on the spacing 33. The limiting sliding plate 34 on the limiting frame 33 is matched with the sliding groove 35 on the outer side of the sliding sleeve 31, so that the circumferential limiting effect of the sliding sleeve 31 is realized, and the sliding sleeve 31 can only slide along the axial direction. The top end of the sliding sleeve 31 is provided with an extrusion block 37; the second driving mechanism 7 drives the rotating shaft 30 of the massage ventilating mechanism 8 to rotate, so that the sliding sleeve 31 slides up and down along the vertical direction of the limiting frame 33, and the sliding sleeve 31 drives the extrusion block 37 to penetrate through the corresponding vent hole 4 on the lower bed plate 3 to perform corresponding axial movement. The cooling fan 12 is arranged at the position of the machine frame 1 relative to the upper bed plate 2, so that the ventilation performance of the machine frame can be enhanced, and the functions of eliminating dampness and cooling are achieved. The bottom of frame 1 is equipped with a plurality of universal wheels 13, and universal wheel 13 makes things convenient for holistic removal for the universal wheel 13 of taking brake function.

As shown in fig. 1 and fig. 2, the first driving mechanism 5 includes a first driving motor 14, a driving pulley 15, a driven pulley 16, a transmission belt 17, a ball screw 20, a first screw nut seat 18 and a second screw nut seat 19, the first driving motor 14 is a C6BLD400 brushless motor, the first driving motor 14, the first screw nut seat 18 and the second screw nut seat 19 are mounted on the frame 1, a motor shaft of the first driving motor 14 is connected to the driving pulley 15, the ball screw 20 penetrates through the first screw nut seat 18 and the second screw nut seat 19, one end of the ball screw 20 is connected to the driven pulley 16, and the transmission belt 17 is wrapped on the driving pulley 15 and the driven pulley 16. First driving motor 14 drives ball 20 through belt pulley transmission's mode and rotates, and then drives link mechanism 6 motion, finally realizes the function of going up the bed board 2 upset, has the advantage that the transmission is steady and the noise is little, can let patient more comfortable when changing the clinostatism.

As shown in fig. 1 and fig. 3, the link mechanism 6 includes two first V-shaped rod members 24 hinged to the pushing frame 22, the ends of the first V-shaped rod members 24 are hinged to second V-shaped rod members 25, two ends of the second V-shaped rod members 25 fixed to the bottom of the lower bed plate 3 and above the pushing frame 22 are respectively provided with a sliding block 27, and the frame 1 is provided with a sliding rail 26 adapted to the sliding block 27; the lower part of the pushing frame 22 is fixedly connected with a moving block 21 matched with the ball screw 20, and when the ball screw 20 rotates, the moving block 21 is driven to move, so that the pushing frame 22 is driven to move.

As shown in fig. 1 and 4, the second driving mechanism 7 includes a second driving motor 28 disposed on the frame 1, the second driving motor 28 is a C6BLD400 brushless motor, a driving sprocket 29 is connected to a motor shaft of the second driving motor 28, a driven sprocket 32 is disposed on an outer side of the sliding sleeve 31, a chain 36 is engaged with an outer side of the driven sprocket 32, and an outer periphery of the chain 36 is engaged with the driving sprocket 29. The second driving motor 28 drives the massage ventilation mechanism 8 to operate in a chain transmission manner, so that the overload capacity is high, the slipping phenomenon can be avoided, and the massage ventilation mechanism is suitable for people with different weights.

As shown in fig. 5 and 6, the pressing block 37 includes a base 38, an upper cover 39 and a plurality of massage rods 40, an outer diameter of the base 38 is 1-3mm larger than an inner diameter of the vent hole 4, the base 38 is provided with a plurality of circular grooves 41, the massage rods 40 are disposed in the circular grooves 41, the periphery of the massage rods 40 is provided with a limit ring 43, the limit ring 43 is in clearance fit with the circular grooves 41, the periphery of the massage rods 40 is sleeved with a spring 42, a bottom end of the spring 42 abuts against a bottom of the circular groove 41, a top end of the spring 42 abuts against a bottom of the limit ring 43, the upper cover 39 is fixed on an upper portion of the base 38 and can be fixed by welding, and the upper cover 39 is provided with a plurality of through holes 23 for the corresponding massage rods 40 to slide axially. The design realizes the telescopic function of the massage rod 40, and the spring 42 provides elasticity for the massage rod 40, thereby realizing the change and control of the force of the massage rod 40 and avoiding the massage rod 40 from excessively extruding the human body, thereby causing discomfort.

As shown in fig. 1 and fig. 9, the upper bed plate 2 and the lower bed plate 3 are both provided with air cushion units 9, and the condition that local tissues of a patient are pressed can be relieved through the air cushion units 9, so that skin injuries and pressure injuries can be prevented. The air cushion unit 9 is connected with the upper bed board 2 and the lower bed board 3 through magic tapes 10, and is very convenient to assemble and disassemble. The air cushion unit 9 comprises a plurality of square air bags 11 distributed in a matrix, and the design can enable the air cushion unit 9 to effectively support a patient and prevent the air cushion unit 9 from increasing the contact area of the patient due to local subsidence to cause discomfort of the patient. The square airbags 11 distributed in the matrix may be connected in a corner manner or in a side line manner.

The working principle is as follows: the upper bed plate 2 corresponding to the upper half of a human body and the lower bed plate 3 corresponding to the lower half of the human body are arranged on the frame 1, the upper bed plate 2 and the lower bed plate 3 are both provided with a plurality of vent holes 4, the vent holes 4 can increase the air permeability of the bed plate, play a role in ventilation and heat dissipation and have a certain function of preventing pressure injury. The first driving mechanism 5 on the frame 1 drives the upper bed plate 2 to overturn, and can help patients to change the lying position, thereby preventing the local tissues from being stressed for a long time to generate pressure damage. The rotating shaft 30 on the massage ventilation mechanism 8 is driven to rotate by the second driving mechanism 7, the rotating shaft 30 is sleeved with the sliding sleeve 31, the contact surface of the sliding sleeve 31 is a circulation process that the concave part 45 and the convex part 44 are gradually matched and gradually separated when the rotating shaft 30 rotates, the sliding sleeve 31 is limited by the limiting frame 33, when the rotating shaft 30 rotates, the sliding sleeve 31 moves up and down, and then the extrusion block 37 is driven to penetrate through the corresponding heat dissipation holes in the lower bed plate 3 to massage the lower limbs of a human body, so that the effect of promoting blood circulation is achieved. Therefore, the invention has the advantage of strong air permeability, can help the patient to change the lying position, automatically massage the patient and play a good role in preventing pressure injury.

Claims

1. The utility model provides a prevent pressure damage sick bed, includes frame (1), its characterized in that: an upper bed plate (2) corresponding to the upper half of the human body and a lower bed plate (3) corresponding to the lower half of the human body are arranged on the frame (1), and a plurality of vent holes (4) are formed in the upper bed plate (2) and the lower bed plate (3); a first driving mechanism (5) is arranged in the rack (1), and the first driving mechanism (5) drives the upper bed plate (2) to turn over through a connecting rod mechanism (6); the massage ventilating mechanism comprises a rack (1), and is characterized in that a second driving mechanism (7) and a massage ventilating mechanism (8) are further arranged in the rack (1), the massage ventilating mechanism (8) comprises a rotating shaft (30) rotatably arranged at the bottom of the rack (1), at least two concave parts (45) are arranged at the top end of the rotating shaft (30), a sliding sleeve (31) is sleeved on the upper part of the rotating shaft (30), a convex part (44) matched with the concave part (45) on the rotating shaft (30) is arranged on the inner end face of the sliding sleeve (31), a limiting frame (33) matched with the sliding sleeve (31) is arranged on the rack (1), and an extrusion block (37) is arranged at the top end of the sliding sleeve; the second driving mechanism (7) drives the rotating shaft (30) of the massage ventilating mechanism (8) to rotate, so that the sliding sleeve (31) slides up and down along the vertical direction of the limiting frame (33), and the sliding sleeve (31) drives the extrusion block (37) to penetrate through the corresponding vent hole (4) in the lower bed plate (3) to perform corresponding axial movement; the outside of sliding sleeve (31) is equipped with spout (35), be equipped with spacing slide (34) that agree with mutually with spout (35) on spacing frame (33).

2. The pressure injury prevention sickbed according to claim 1, wherein: the first driving mechanism (5) comprises a first driving motor (14), a driving belt pulley (15), a driven belt pulley (16), a transmission belt (17), a ball screw (20), a first screw nut seat (18) and a second screw nut (19) seat, wherein the first driving motor (14), the first screw nut seat (18) and the second screw nut (19) seat are installed on the rack (1), a motor shaft of the first driving motor (14) is connected with the driving belt pulley (15), the ball screw (20) penetrates through the first screw nut seat (18) and the second screw nut (19) seat, one end of the ball screw (20) is connected with the driven belt pulley (16), and the transmission belt (17) is wrapped on the driving belt pulley (15) and the driven belt pulley (16).

3. The pressure injury prevention sickbed according to claim 2, wherein: the connecting rod mechanism (6) comprises a pushing frame (22) and two first V-shaped rod pieces (24) hinged to the pushing frame, the tail ends of the first V-shaped rod pieces (24) are hinged to second V-shaped rod pieces (25), two sliding blocks (27) are arranged at two ends, fixed to the bottom of the lower bed plate (3), of the second V-shaped rod pieces (25) and at the upper portion of the pushing frame (22), respectively, and a sliding rail (26) matched with the sliding blocks (27) is arranged on the rack (1); the lower part of the pushing frame (22) is fixedly connected with a moving block (21) matched with the ball screw (20).

4. The pressure injury prevention sickbed according to claim 1, wherein: second actuating mechanism (7) are including setting up second driving motor (28) on frame (1), and the motor shaft of second driving motor (28) is connected with drive sprocket (29), the outside of sliding sleeve (31) is equipped with passive sprocket (32), the outside meshing of passive sprocket (32) has chain (36), just the periphery and the drive sprocket (29) of chain (36) mesh mutually.

5. The pressure injury prevention sickbed according to claim 1, wherein: extrusion piece (37) include base (38), upper cover (39) and a plurality of massage pole (40), a plurality of circular slots (41) have been seted up on base (38), massage pole (40) set up in circular slot (41), and the periphery of massage pole (40) is equipped with spacing ring (43), and the periphery cover of massage pole (40) is equipped with spring (42), the bottom of spring (42) is supported in circular slot (41) bottom, and the top of spring (42) is supported in the bottom of spacing ring (43), upper cover (39) are fixed in base (38) upper portion, and offer a plurality of confessions on upper cover (39) and correspond massage pole (40) and carry out axial sliding's through-hole (23).

6. The pressure injury prevention sickbed according to claim 1, wherein: the upper bed board (2) and the lower bed board (3) are both provided with air cushion units (9), and the air cushion units (9) are connected with the upper bed board (2) and the lower bed board (3) through magic tapes (10).

7. The pressure injury prevention sickbed according to claim 6, wherein: the air cushion unit (9) comprises a plurality of square air bags (11) distributed in a matrix.

8. The pressure injury prevention sickbed according to claim 1, wherein: the frame (1) is provided with a cooling fan (12) relative to the upper bed board (2).

9. The pressure injury prevention sickbed according to claim 1, wherein: the bottom of the frame (1) is provided with a plurality of universal wheels (13).