Brown bone traction frame for preventing pressure sores

Abstract

The invention relates to the technical field of medical equipment, in particular to a bone traction Brown type frame for preventing pressure sores, which comprises a wedge-shaped supporting shell, a mounting groove is formed in the wedge-shaped supporting shell, a first expansion ring is mounted in the mounting groove, and an adjusting bracket for adjusting the height of the wedge-shaped supporting shell is arranged at the bottom of the wedge-shaped supporting shell. And a driving mechanism for driving the first expansion ring to expand is arranged in the wedge-shaped supporting shell. The first expansion ring is driven by the driving mechanism to expand, so that the heel position of a patient is supported, and the supporting comfort is guaranteed; the first expansion ring is repeatedly driven to expand through the driving mechanism, the heel position of the patient can be massaged through the first expansion ring, the comfort of the heel position of the patient is further improved, and the situation that pressure sores appear at the heel position of the patient is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a bone traction Brown frame for preventing pressure ulcers. Background Art

[0002] Among them, the traditional Brown frame is a relatively typical and widely used bone traction device. The traditional Brown frame mainly consists of a support structure, a traction component, etc. During actual use, the limb of the patient that needs to be tractioned is placed in the corresponding position of the Brown frame to promote bone healing. For example, for a patient with a lower limb fracture, the lower limb will be placed on the Brown frame to help the bone return to its normal position.

[0003] Although the existing bone traction devices play an important role in orthopedic treatment, there are obvious deficiencies in preventing pressure ulcers. For example, a Brown frame with the patent publication number CN215019932U uses a liftable support platform to adjust the height to change the support height of the injured limb of the patient. The foot of the injured limb of the patient is placed on the annular airbag, and the heel is placed in the receiving groove to reduce the pressure on the injured limb. However, since bone traction treatment usually requires the patient to maintain a fixed body position for a long time, this causes the patient's local skin to be compressed for a long time, especially the parts in contact with the bone traction device; long-term compression will hinder blood circulation, resulting in local tissue ischemia and hypoxia, and then causing pressure ulcers. For example, the sacrococcygeal region, heels, elbows and other bony prominences of the patient are extremely prone to pressure ulcer symptoms such as skin redness, blisters, and ulcers under long-term pressure. It can be seen that the deficiencies of the existing bone traction devices in preventing pressure ulcers need to be solved urgently to improve the treatment experience and rehabilitation effect of the patient. Summary of the Invention

[0004] In order to overcome the problem that pressure ulcers are likely to occur after long-term use of bone traction devices, the present invention provides a bone traction Brown frame for preventing pressure ulcers.

[0005] The technical solution of the present invention is: a bone traction Brown frame for preventing pressure ulcers, including a wedge-shaped support shell. An installation groove is provided on the wedge-shaped support shell, and a first expansion ring is installed in the installation groove. A regulating bracket for adjusting the height of the wedge-shaped support shell is provided at the bottom of the wedge-shaped support shell, and a driving mechanism for driving the first expansion ring to expand is provided inside the wedge-shaped support shell.

[0006] Preferably, the driving mechanism includes a peristaltic pump disposed within the wedge-shaped support housing. A rotor is provided within the peristaltic pump. One side of the rotating shaft of the rotor is connected to a worm gear. One side of the worm gear is in meshing transmission with a worm. One end of the worm is connected to the output end of a dual-shaft motor. The dual-shaft motor is fixedly connected to the inner wall of the wedge-shaped support housing. One end of the dual-shaft motor away from the worm passes through the wedge-shaped support housing and is connected to a knob. The peristaltic pump is connected to the first expansion ring through a pipeline. After the dual-shaft motor is powered on, it rotates intermittently and reciprocally to drive the first expansion ring to expand repeatedly to massage the patient's heel.

[0007] Preferably, an annular positioning groove is provided at the bottom of the wedge-shaped support housing. A second expansion ring in an expanded state in its initial state is provided within the annular positioning groove. The second expansion ring is filled with water. The second expansion ring is connected to the peristaltic pump through a pipeline. The adjusting bracket includes a bottom plate disposed at the bottom of the wedge-shaped support housing. An annular protrusion corresponding to the annular positioning groove is provided on the bottom plate. The annular protrusion is in sliding connection with the annular positioning groove and is in pressing contact with the lower surface of the second expansion ring.

[0008] Preferably, a vertically arranged back plate is fixedly connected to the bottom plate near the higher end of the wedge-shaped support housing. An opening corresponding to the knob is provided on the back plate. At least two groups of positioning chutes are provided on the back plate. A positioning slider slidably connected to the positioning chute is connected to one side of the wedge-shaped support housing near the back plate.

[0009] Preferably, an adjusting plate is provided above the back plate. A vertical adjusting bolt is rotatably connected to the adjusting plate. The lower end of the adjusting bolt is in threaded connection with the back plate. One side of the adjusting plate away from the wedge-shaped support housing extends downward to form a pressing portion. One end of the positioning slider away from the wedge-shaped support housing is connected to a pressing plate corresponding to the pressing portion.

[0010] Preferably, the adjusting bracket includes two groups of support rods disposed below the bottom plate. One end of one group of support rods near the back plate is fixedly connected to a first hydraulic telescopic assembly. One end of the other group of support rods near the back plate is fixedly connected to a second hydraulic telescopic assembly. A hollow rod is connected between the first hydraulic telescopic assembly and the second hydraulic telescopic assembly. A pressing control valve for controlling the telescopic movement of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly is embedded in the middle of the hollow rod.

[0011] Preferably, the first hydraulic telescopic assembly includes a first piston rod fixedly connected to the support rod. A first piston cylinder is sleeved on the first piston rod. The upper end of the first piston rod is fixedly connected to a first sliding plug in sealing sliding connection with the first piston cylinder. A first sealing ring is fixedly connected to the inner side of the lower end of the first piston cylinder. The first piston rod passes through the first sealing ring and is in sealing sliding connection with the first sealing ring. A fluid is filled between the first sliding plug and the first sealing ring;

[0012] The second hydraulic telescopic assembly includes a second piston rod fixedly connected to the support rod. A second piston cylinder is sleeved on the second piston rod. The upper end of the second piston rod is fixedly connected to a second sliding plug that is hermetically and slidably connected to the second piston cylinder. Fluid is filled between the upper part of the second sliding plug and the second piston cylinder;

[0013] Both the first piston cylinder and the second piston cylinder are detachably connected to the back plate. One end of the pressing control valve is communicated to the fluid inside the first hydraulic telescopic assembly through a pipeline, and the other end of the pressing control valve is communicated with the top of the second piston cylinder through a pipeline.

[0014] Preferably, sliding grooves are formed on the sides of the two support rods close to each other. A sliding plate is arranged between the two support rods, and both sides of the sliding plate are slidably connected to the sliding grooves.

[0015] Preferably, an electric heating wire is installed inside the second expansion ring, and the electric heating wire starts to work when the biaxial motor is powered on.

[0016] Advantages of the present invention:

[0017] 1. The present invention can place the patient's heel in the installation groove, and drive the first expansion ring to expand through the driving mechanism, so as to support the position of the patient's heel and ensure the comfort of the support; and by repeatedly driving the first expansion ring to expand through the driving mechanism, the first expansion ring can be relied on to massage the position of the patient's heel, further improving the comfort of the patient's heel position and effectively reducing the occurrence of pressure sores at the patient's heel position.

[0018] 2. The present invention can directly rotate the output end of the biaxial motor through the knob, thereby driving the worm to rotate, and driving the turbine to rotate accordingly. Relying on the turbine, the peristaltic pump can be driven to operate and drive the first expansion ring to expand. Rotate the knob according to the size of the patient's heel to drive the first expansion ring to expand to an appropriate size to meet the actual needs of heel position support; the intermittent reciprocating rotation of the biaxial motor can achieve the massage effect on the patient's heel position, thereby improving the comfort of the patient's heel position support and effectively reducing the occurrence of pressure sores at the heel position.

[0019] 3. During the massage process of the present invention, the second expansion ring and the first expansion ring cooperate. When the first expansion ring expands, the second expansion ring contracts, reducing the height of the wedge-shaped support shell; and when the first expansion ring contracts, the second expansion ring expands, lifting the wedge-shaped support shell, thereby further reducing the movement amplitude of the patient's heel when massaging the patient's heel position and reducing the problem of wound pain caused by the large movement amplitude of the patient's heel during the massage process;

[0020] 4. The rotatable adjusting bolt of the present invention drives the adjusting plate and the extrusion part to move up and down; thereby adjusting the maximum height after the extrusion plate moves up, so as to limit the expansion state of the second expansion ring, avoid excessive contraction of the first expansion ring under the action of the peristaltic pump, and it is difficult to meet the needs of the patient's heel support. Description of the Drawings

[0021] Figure 1 Isometric view of the present invention;

[0022] Figure 2 Isometric view of the wedge-shaped support shell of the present invention;

[0023] Figure 3 Isometric view of the partial sectional view of the wedge-shaped support shell of the present invention;

[0024] Figure 4 Isometric view of the bottom plate of the present invention;

[0025] Figure 5 Isometric view of the slide plate of the present invention;

[0026] Figure 6 Is a schematic sectional structure view of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly of the present invention. Explanation of reference numerals: 1, wedge-shaped support shell; 2, installation groove; 3, first expansion ring; 4, peristaltic pump; 5, worm gear; 6, worm; 7, double-shaft motor; 8, knob; 9, annular positioning groove; 10, second expansion ring; 11, bottom plate; 12, annular protrusion; 13, back plate; 14, positioning chute; 15, positioning slider; 16, adjusting plate; 17, adjusting bolt; 18, extrusion part; 19, extrusion plate; 20, support rod; 21, hollow rod; 22, pressing control valve; 23, first piston rod; 24, first piston cylinder; 25, first sliding plug; 26, first sealing ring; 27, second piston rod; 28, second piston cylinder; 29, second sliding plug; 30, chute; 31, slide plate; 32, electric heating wire; 33, opening. Detailed Embodiments

[0027] The present invention will be further described below in conjunction with the drawings and embodiments.

[0028] Please refer to Figure 1-6 , the present invention provides an embodiment: a bone traction Brown frame for preventing pressure sores, including a wedge-shaped support shell 1, an installation groove 2 is provided on the wedge-shaped support shell 1, a first expansion ring 3 is installed in the installation groove 2, and an adjusting bracket for adjusting the height of the wedge-shaped support shell 1 is provided at the bottom of the wedge-shaped support shell 1, and a driving mechanism for driving the expansion of the first expansion ring 3 is provided inside the wedge-shaped support shell 1.

[0029] By adopting the above technical solution, during use, the patient's heel can be placed in the installation groove 2, and the first expansion ring 3 is driven by the driving mechanism to expand, so as to support the position of the patient's heel and ensure the comfort of the support; the height of the wedge-shaped support shell 1 can be adjusted through the adjusting bracket, so as to meet the requirements of the support height at the position of the patient's heel; and by repeatedly driving the first expansion ring 3 to expand through the driving mechanism, the first expansion ring 3 can be relied on to massage the position of the patient's heel, further improving the comfort of the patient's heel position and effectively reducing the occurrence of pressure sores at the position of the patient's heel.

[0030] As Figure 3 shown, in this embodiment, the driving mechanism includes a peristaltic pump 4 arranged in the wedge-shaped support shell 1. A rotor is arranged in the peristaltic pump 4. One side of the rotating shaft of the rotor is connected with a worm gear 5. One side of the worm gear 5 is meshed and driven with a worm 6. One end of the worm 6 is connected with the output end of a double-shaft motor 7. The double-shaft motor 7 is fixedly connected with the inner wall of the wedge-shaped support shell 1. The end of the double-shaft motor 7 away from the worm 6 passes through the wedge-shaped support shell 1 and is connected with a knob 8. The peristaltic pump 4 is communicated with the first expansion ring 3 through a pipeline. After the double-shaft motor 7 is powered on, it rotates intermittently and reciprocally to drive the first expansion ring 3 to expand repeatedly to massage the patient's heel.

[0031] During use, first, the output end of the double-shaft motor 7 can be directly rotated through the knob 8, so as to drive the worm 6 to rotate, and thereby drive the turbine to rotate. Relying on the turbine, the peristaltic pump 4 can be driven to operate, driving the first expansion ring 3 to expand. Rotate the knob 8 according to the size of the patient's heel, and drive the first expansion ring 3 to expand to an appropriate size to meet the actual requirements of the support at the heel position;

[0032] After the first expansion ring 3 supports the patient's heel for a certain period of time, in order to prevent the occurrence of pressure sores at the heel position, the power supply of the double-shaft motor 7 can be turned on. After the double-shaft motor 7 is powered on, it will drive the peristaltic pump 4 to work, so that the first expansion ring 3 further expands. After the expanded first expansion ring 3 is in full contact with the position of the patient's heel, the double-shaft motor 7 rotates in reverse, thereby driving the first expansion ring 3 to contract. The first expansion ring 3 returns to the specification when supporting the patient's heel. By intermittently and reciprocally rotating the double-shaft motor 7, the massage effect on the position of the patient's heel can be realized, thereby improving the comfort of the support at the position of the patient's heel and effectively reducing the occurrence of pressure sores at the heel position;

[0033] The transmission between the worm 6 and the turbine can ensure the stability of the peristaltic pump 4, so as to ensure that the first expansion ring 3 will not contract and expand when both the knob 8 and the double-shaft motor 7 do not work.

[0034] In order to further improve the comfort of the use of the present invention, as an embodiment of the present invention, as Figure 3 、 4As shown, an annular positioning groove 9 is provided at the bottom of the wedge-shaped support shell 1. A second expansion ring 10 in an initial expanded state is provided in the annular positioning groove 9. The second expansion ring 10 is filled with water. The second expansion ring 10 is connected to the peristaltic pump 4 through a pipeline. The adjusting bracket includes a bottom plate 11 provided at the bottom of the wedge-shaped support shell 1. An annular protrusion 12 corresponding to the annular positioning groove 9 is provided on the bottom plate 11. The annular protrusion 12 is slidably connected to the annular positioning groove 9 and is in pressing contact with the lower surface of the second expansion ring 10.

[0035] During use, the output end of the double-shaft motor 7 is directly rotated through the knob 8, thereby driving the peristaltic pump 4 to operate. The peristaltic pump 4 pumps the water in the second expansion ring 10 into the first expansion ring 3, thereby driving the first expansion ring 3 to expand. The knob 8 can be rotated according to the size of the patient's heel to drive the first expansion ring 3 to expand to an appropriate size to meet the actual needs of heel position support.

[0036] After the water in the second expansion ring 10 is pumped into the first expansion ring 3 by the peristaltic pump 4, the second expansion ring 10 will contract. At this time, the whole wedge-shaped support shell 1 will move downward slightly.

[0037] Specifically, when the power of the double-shaft motor 7 is turned on to massage the patient's heel position, the double-shaft motor 7 is turned on to drive the peristaltic pump 4 to work, so that the first expansion ring 3 expands further while the second expansion ring 10 contracts. The expanded first expansion ring 3 is in full contact with the patient's heel position. Then the double-shaft motor 7 rotates in reverse, thereby driving the first expansion ring 3 to contract. While the first expansion ring 3 contracts, the second expansion ring 10 expands; the massage effect on the patient's heel position can be achieved by the intermittent reciprocating rotation of the double-shaft motor 7; during the massage process, when the first expansion ring 3 expands, if the height of the wedge-shaped support shell 1 is not adjusted, the patient's heel will be slightly lifted. On the contrary, when the first expansion ring 3 contracts, if the height of the wedge-shaped support shell 1 is not adjusted, the patient's heel will drop slightly; through the cooperation of the second expansion ring 10 and the first expansion ring 3, when the first expansion ring 3 expands, the second expansion ring 10 contracts, reducing the height of the wedge-shaped support shell 1; and when the first expansion ring 3 contracts, the second expansion ring 10 expands, lifting the wedge-shaped support shell 1, thereby further reducing the movement range of the patient's heel when massaging the patient's heel position and reducing the problem of wound pain caused by the large movement range of the patient's heel during the massage process.

[0038] To improve the stability of the up and down movement of the wedge-shaped support shell 1, as an embodiment of the present invention, as Figures 1 to 4As shown, a vertically arranged back plate 13 is fixedly connected to the higher end of the bottom plate 11 close to the wedge-shaped support shell 1. An opening 33 corresponding to the knob 8 is provided on the back plate 13. At least two groups of positioning chutes 14 are provided on the back plate 13. A positioning slider 15 slidably connected to the positioning chute 14 is connected to the side of the wedge-shaped support shell 1 close to the back plate 13.

[0039] During use, the peristaltic pump 4 drives water to flow between the second expansion ring 10 and the first expansion ring 3, which can adjust the states of the first expansion ring 3 and the second expansion ring 10, and adjust the height of the wedge-shaped support shell 1 relative to the back plate 13, so as to meet the actual needs of patient heel support.

[0040] To ensure the stability of the support of the first expansion ring 3 on the patient's heel position, as an embodiment of the present invention, an adjusting plate 16 is provided above the back plate 13. A vertical adjusting bolt 17 is rotatably connected to the adjusting plate 16. The lower end of the adjusting bolt 17 is threadedly connected to the back plate 13. An extrusion part 18 is formed by the downward extension of the side of the adjusting plate 16 away from the wedge-shaped support shell 1. An extrusion plate 19 corresponding to the extrusion part 18 is connected to the end of the positioning slider 15 away from the wedge-shaped support shell 1.

[0041] Through the above technical solution, the adjusting bolt 17 can be rotated to drive the adjusting plate 16 and the extrusion part 18 to move up and down; thereby adjusting the maximum height after the extrusion plate 19 moves up, so as to limit the expansion state of the second expansion ring 10 and prevent the first expansion ring 3 from shrinking excessively under the action of the peristaltic pump 4, making it difficult to meet the needs of patient heel support;

[0042] Specifically, during use, the output end of the double-shaft motor 7 is directly rotated by the knob 8, thereby driving the peristaltic pump 4 to operate. The peristaltic pump 4 pumps the water in the second expansion ring 10 into the first expansion ring 3, thereby driving the first expansion ring 3 to expand to an appropriate state. At this time, the adjusting bolt 17 is twisted to drive the adjusting plate 16 and the extrusion part 18 to move down to contact the extrusion plate 19, so that when the double-shaft motor 7 intermittently rotates reciprocally to massage the patient's heel position subsequently, the situation that the first expansion ring 3 shrinks excessively and is difficult to meet the needs of patient heel position support will not occur.

[0043] To facilitate the lifting of the height of the wedge-shaped support shell 1, as an embodiment of the present invention, as Figures 1 to 5 shown, the adjusting bracket includes two support rods 20 arranged below the bottom plate 11. A first hydraulic telescopic component is fixedly connected to one end of a group of support rods 20 close to the back plate 13. A second hydraulic telescopic component is fixedly connected to one end of the other group of support rods 20 close to the back plate 13. A hollow rod 21 is connected between the first hydraulic telescopic component and the second hydraulic telescopic component. A pressing control valve 22 for controlling the telescopic of the first hydraulic telescopic component and the second hydraulic telescopic component is embedded in the middle of the hollow rod 21.

[0044] When in use, the unlocking press control valve 22 can be pressed to connect the first hydraulic telescopic assembly and the second hydraulic telescopic assembly. After that, the heights of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly can be adjusted simultaneously through the hollow rod 21 to meet the requirements for the supporting height of the wedge-shaped support shell 1 for the patient's heel. It should be noted that the first hydraulic telescopic assembly and the second hydraulic telescopic assembly of the present invention can also be replaced with a simpler telescopic rod with a locking function, and in this case, the press control valve 22 is no longer required.

[0045] To ensure the stability of the control of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly, as an embodiment of the present invention, as Figure 5 、 6 shown, the first hydraulic telescopic assembly includes a first piston rod 23 fixedly connected to the support rod 20. A first piston cylinder 24 is sleeved on the first piston rod 23. The upper end of the first piston rod 23 is fixedly connected with a first sliding plug 25 that is hermetically and slidably connected to the first piston cylinder 24. A first sealing ring 26 is fixedly connected to the inner side of the lower end of the first piston cylinder 24. The first piston rod 23 passes through the first sealing ring 26 and is hermetically and slidably connected to the first sealing ring 26. A fluid is filled between the first sliding plug 25 and the first sealing ring 26;

[0046] The second hydraulic telescopic assembly includes a second piston rod 27 fixedly connected to the support rod 20. A second piston cylinder 28 is sleeved on the second piston rod 27. The upper end of the second piston rod 27 is fixedly connected with a second sliding plug 29 that is hermetically and slidably connected to the second piston cylinder 28. A fluid is filled between the upper part of the second sliding plug 29 and the second piston cylinder 28;

[0047] Both the first piston cylinder 24 and the second piston cylinder 28 are detachably connected to the back plate 13. One end of the press control valve 22 is communicated to the fluid in the first hydraulic telescopic assembly through a pipeline, and the other end of the press control valve 22 is communicated with the top of the second piston cylinder 28 through a pipeline.

[0048] By adopting the above technical solution, when the unlocking press control valve 22 is unlocked and the hollow rod 21 is driven to press down, the fluid in the second hydraulic telescopic assembly enters the first hydraulic telescopic assembly through the press control valve 22; conversely, when the unlocking press control valve 22 is unlocked and the hollow rod 21 is driven to move upward, the fluid in the first hydraulic telescopic assembly enters the second hydraulic telescopic assembly through the press control valve 22; after the press control valve 22 is released, the press control valve 22 automatically resets and interrupts the first hydraulic telescopic assembly and the second hydraulic telescopic assembly, thereby ensuring the stability of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly; it should be noted that the fluid can be distilled water.

[0049] To improve the stability of the adjusting bracket, as an embodiment of the present invention, as shown in Figure 5 In the figure, sliding grooves 30 are formed on the sides of the two sets of supporting rods 20 close to each other. A sliding plate 31 is provided between the two sets of supporting rods, and both sides of the sliding plate 31 are slidably connected to the sliding grooves 30.

[0050] By adopting the above technical solution, the sliding plate 31 can be pulled out to further improve the support stability.

[0051] To further improve the comfort of the first expansion ring 3 massaging the patient's heel position, as shown in Figure 3 In the figure, an electric heating wire 32 is installed in the second expansion ring 10, and the electric heating wire 32 starts to work when the biaxial motor 7 is powered on.

[0052] Through the above technical solution, when the biaxial motor 7 intermittently drives the first expansion ring 3 to repeatedly expand and massage the patient's heel, the water body in the second expansion ring 10 can be heated to heat the water body in the first expansion ring 3, thereby improving the comfort of the patient's heel position.

[0053] When the present invention is in use:

[0054] First, adjust the height of the wedge-shaped support shell 1 according to the height that the patient's heel needs to be lifted; press the unlocking pressure control valve 22 to connect the first hydraulic telescopic assembly and the second hydraulic telescopic assembly, and then the heights of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly can be adjusted simultaneously through the hollow rod 21 to meet the requirement of the wedge-shaped support shell 1 for the support height of the patient's heel;

[0055] After that, adjust the size of the first expansion ring 3 according to the size of the patient's heel; directly rotate the output end of the biaxial motor 7 through the knob 8, thereby driving the peristaltic pump 4 to operate. The peristaltic pump 4 will pump the water body in the second expansion ring 10 into the first expansion ring 3, thereby driving the first expansion ring 3 to expand. The knob 8 can be rotated according to the size of the patient's heel to drive the first expansion ring 3 to expand to an appropriate size to meet the actual requirement of the heel position support; then twist the adjusting bolt 17 to drive the adjusting plate 16 and the extrusion part 18 to move downward to contact the extrusion plate 19, so that when the biaxial motor 7 intermittently rotates back and forth to massage the patient's heel position subsequently, the situation that the first expansion ring 3 shrinks excessively and is difficult to meet the support requirement of the patient's heel position will not occur;

[0056] After the first expansion ring 3 supports the patient's heel for a certain period of time, in order to prevent pressure sores from occurring at the heel position, the power supply of the biaxial motor 7 can be turned on. After the biaxial motor 7 is powered on, it will drive the peristaltic pump 4 to work, causing the first expansion ring 3 to expand further. After expansion, the first expansion ring 3 is in full contact with the patient's heel position. Then, the biaxial motor 7 rotates in reverse, thereby driving the first expansion ring 3 to contract. The first expansion ring 3 returns to the specification when it supports the patient's heel. By intermittently rotating the biaxial motor 7 back and forth, the massage effect on the patient's heel position can be achieved, thereby improving the comfort of supporting the patient's heel position and effectively reducing the occurrence of pressure sores at the heel position.

[0057] It should also be supplemented and explained that when the present invention is clinically used, it is necessary to check the integrity of the patient's heel skin, and whether there are any abnormal conditions such as redness, breakage, blisters, etc. The present invention is not applicable to the situation where the heel skin has stage II or above pressure sores; relevant personnel can also select a suitable decompression patch or hydrocolloid dressing according to the size of the patient's heel, apply it to the easily compressed part of the heel, and then place the heel in the first expansion ring 3 of the installation groove 2.

[0058] The patient generally undergoes massage once every 1 hour, and the massage operation is performed no more than once every 2 hours at most. After the first expansion ring 3 expands and then contracts, a set of massage actions is completed. Each massage operation needs to be repeated 5 to 10 sets of massage actions. After the massage is over, the first expansion ring 3 returns to its initial state to ensure the support effect on the patient's heel;

[0059] The temperature of the water body in the second expansion ring 10 after heating is about 40 - 46 °C to avoid causing discomfort to the patient due to too high a temperature.

[0060] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A bone traction Brown frame for preventing bedsores, characterized in that: The invention comprises a wedge-shaped support shell (1), wherein a mounting groove (2) is provided on the wedge-shaped support shell (1), a first expansion ring (3) is installed in the mounting groove (2), an adjustment bracket for adjusting the height of the wedge-shaped support shell (1) is provided at the bottom of the wedge-shaped support shell (1), and a driving mechanism for driving the first expansion ring (3) to expand is provided in the wedge-shaped support shell (1).

2. The bone traction Brownian frame for preventing pressure sores according to claim 1, characterized in that: The driving mechanism comprises a peristaltic pump (4) arranged in a wedge-shaped support shell (1), wherein a rotor is arranged in the peristaltic pump (4), wherein one side of the rotating shaft of the rotor is connected to a worm gear (5), wherein one side of the worm gear (5) is meshed with a transmission worm (6), wherein one end of the worm gear (6) is connected to the output end of a dual-axis motor (7), wherein the dual-axis motor (7) is fixedly connected to the inner wall of the wedge-shaped support shell (1), wherein one end of the dual-axis motor (7) away from the worm gear (6) passes through the wedge-shaped support shell (1) and is connected to a knob (8), wherein the peristaltic pump (4) is connected to the first expansion ring (3) through a pipeline, wherein the dual-axis motor (7) intermittently reciprocates after being powered on to drive the first expansion ring (3) to repeatedly expand and massage the patient's heel.

3. A bone traction Brownian frame for preventing pressure sores according to claim 2, characterized in that: The bottom of the wedge-shaped support shell (1) is provided with an annular positioning groove (9), and a second expansion ring (10) is provided in the annular positioning groove (9), which is initially in an expanded state. The second expansion ring (10) is filled with water, and the second expansion ring (10) is connected to the peristaltic pump (4) through a pipeline. The adjustment bracket includes a bottom plate (11) arranged at the bottom of the wedge-shaped support shell (1), and an annular protrusion (12) corresponding to the annular positioning groove (9) is provided on the bottom plate (11). The annular protrusion (12) is slidably connected to the annular positioning groove (9) and is in compression contact with the lower surface of the second expansion ring (10).

4. The bone traction Brownian frame for preventing pressure sores according to claim 3, characterized in that: The bottom plate (11) is fixedly connected to a vertically arranged back plate (13) at a higher end close to the wedge-shaped support shell (1); the back plate (13) is provided with an opening (33) corresponding to the knob (8); the back plate (13) is provided with at least two groups of positioning slide grooves (14); and a positioning slider (15) slidably connected to the positioning slide groove (14) is connected to one side of the wedge-shaped support shell (1) close to the back plate (13).

5. The bone traction Brownian frame for preventing pressure sores according to claim 4, characterized in that: An adjustment plate (16) is provided above the back plate (13), and a vertical adjustment bolt (17) is rotatably connected to the adjustment plate (16), and the lower end of the adjustment bolt (17) is threadedly connected to the back plate (13). The side of the adjustment plate (16) away from the wedge-shaped support shell (1) extends downward to form an extrusion portion (18), and the end of the positioning slider (15) away from the wedge-shaped support shell (1) is connected to an extrusion plate (19) corresponding to the extrusion portion (18).

6. The bone traction Brownian frame for preventing pressure sores according to claim 5, characterized in that: The adjustment bracket comprises two groups of support rods (20) arranged below the base plate (11), wherein one group of support rods (20) is fixedly connected to a first hydraulic telescopic assembly at one end close to the back plate (13), and the other group of support rods (20) is fixedly connected to a second hydraulic telescopic assembly at one end close to the back plate (13), a hollow rod (21) is connected between the first hydraulic telescopic assembly and the second hydraulic telescopic assembly, and a press control valve (22) for controlling the telescopic movement of the first hydraulic telescopic assembly and the second hydraulic telescopic assembly is embedded in the middle of the hollow rod (21).

7. A bone traction Brownian frame for preventing pressure sores according to claim 6, characterized in that: The first hydraulic telescopic assembly comprises a first piston rod (23) fixedly connected to the support rod (20); a first piston cylinder (24) is sleeved on the first piston rod (23); a first sliding plug (25) is fixedly connected to the upper end of the first piston rod (23) and is sealingly and slidably connected to the first piston cylinder (24); a first sealing ring (26) is fixedly connected to the inner side of the lower end of the first piston cylinder (24); the first piston rod (23) passes through the first sealing ring (26) and is sealingly and slidably connected to the first sealing ring (26); a fluid is filled between the first sliding plug (25) and the first sealing ring (26); The second hydraulic telescopic assembly comprises a second piston rod (27) fixedly connected to the support rod (20); a second piston cylinder (28) is sleeved on the second piston rod (27); a second sliding plug (29) is fixedly connected to the upper end of the second piston rod (27) and is sealingly and slidably connected to the second piston cylinder (28); a fluid is filled between the upper part of the second sliding plug (29) and the second piston cylinder (28); The first piston cylinder (24) and the second piston cylinder (28) are both detachably connected to the back plate (13); one end of the pressure control valve (22) is connected to the fluid in the first hydraulic telescopic assembly via a pipeline; the other end of the pressure control valve (22) is connected to the top of the second piston cylinder (28) via a pipeline.

8. A bone traction Brownian frame for preventing pressure sores according to claim 6 or 7, characterized in that: A sliding groove (30) is provided on the adjacent sides of the two groups of supporting rods (20), and a sliding plate (31) is provided between the two groups of supporting rods (20). Both sides of the sliding plate (31) are slidably connected to the sliding groove (30) respectively.

9. The bone traction Brownian frame for preventing pressure sores according to claim 7, characterized in that: An electric heating wire (32) is installed in the second expansion ring (10), and the electric heating wire (32) starts to work when the dual-axis motor (7) is powered on.

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