Postoperative anti-displacement fixing nursing device for prostatic cancer

Abstract

The invention discloses a prostate cancer postoperative anti-displacement fixing nursing device, which relates to the technical field of medical treatment, and comprises a fixing ring, a fixing rod, a fixing rod and a fixing rod, the fixing bags are uniformly distributed on the inner wall of the fixing ring in the circumferential direction, and the fixing bags are inflated to expand and deform to form continuous pressure contact points with the skin surface of the sponge body so as to restrain the fixing ring on the sponge body; and the pressure relief units are uniformly distributed on the fixing ring in the circumferential direction and correspond to the fixing bags. Through the arrangement of the rotating ring, the adjusting plate and the fixing bag, periodic pressure release can be achieved, so that the situation that the sponge body is prone to necrosis under long-time pressure is effectively avoided, meanwhile, the wearing comfort of a patient is improved, and the nursing performance of the device is improved.

Description

Technical Field

[0001] The present invention relates to the field of medical technology, and specifically to a post-prostatectomy anti-displacement fixation nursing device. Background Art

[0002] After prostatectomy, the catheter needs to stay in the urethra for more than 48 hours, and a fixing device is required to fix the catheter to prevent it from slipping out.

[0003] Patent Publication No. CN110732076B, Publication Date October 12, 2021. The disclosed catheter fixation device after prostatectomy includes a fixing seat mechanism fixed on the catheter and a wrapping mechanism for wrapping the glans penis. The fixing seat mechanism includes a main body. The wrapping mechanism includes a rubber ring sleeved on a groove, a connecting layer wrapped on the glans penis, an annular airbag sleeved on the penis, an inflatable airbag for inflating the airbag, a catheter for connecting the airbag and the inflatable airbag, and a clip located on the catheter. When in use, first fix the fixing seat mechanism on the catheter, then connect the wrapping mechanism to the fixing seat mechanism, then wrap the connecting layer around the glans penis, and then put the airbag on the penis to prevent the catheter from slipping out. The operation is simple and the fixing effect is good.

[0004] Since the airbag is sleeved on the corpus spongiosum for a long time, it is easy to cause necrosis of the corpus spongiosum. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a post-prostatectomy anti-displacement fixation nursing device.

[0006] To achieve the above object, the technical solution of the present invention is as follows:

[0007] A post-prostatectomy anti-displacement fixation nursing device, comprising:

[0008] A fixing ring sleeved on the corpus spongiosum;

[0009] Fixing airbags circumferentially and evenly arranged on the inner wall of the fixing ring, which are inflated and deformed to form continuous pressure contact points with the surface of the corpus spongiosum skin, so as to restrain the fixing ring on the corpus spongiosum;

[0010] Pressure release units circumferentially and evenly arranged on the fixing ring and corresponding to the fixing airbags, which include:

[0011] A pressure chamber opened inside the fixing ring and communicated with the fixing airbag, which is an arc-shaped cavity;

[0012] An adjusting plate elastically arranged along the arc bending direction of the pressure chamber;

[0013] A rotating ring rotatably arranged on the outer wall of the fixing ring, which is radially clamped with the adjusting plate;

[0014] The third elastic member is embedded in the inner wall of the rotating ring and is in a radial elastic compression state by the adjusting plate;

[0015] The rotating ring is configured as follows:

[0016] Drive the adjustment plate to move to a preset position and adjust the air pressure in the pressure chamber to a negative pressure, so as to suck the gas in the fixed bag and release the pressure on the skin at the pressure contact point at the corresponding position;

[0017] After the adjustment plate reaches the preset position, the third elastic member pushes the adjustment plate to disengage from the engagement with the rotating ring and rebound, and the fixing bag is inflated again to come into pressure contact with the skin surface;

[0018] The rotating ring is sequentially engaged with the adjusting plates of the pressure relief unit along the rotating direction to achieve periodic dynamic pressure relief at the pressure contact points of the pressure relief unit.

[0019] Preferably, the number of the clamping points between the rotating ring and the adjusting plate is set to a multiple of three and is evenly distributed circumferentially to shorten the periodicity of dynamic pressure release at the pressure contact point.

[0020] Preferably, the pressure release time interval between adjacent pressure release units is 5-30 seconds, and the single pressure release duration of each pressure contact point is 1-5 seconds.

[0021] Preferably, the fixing bag comprises a telescopic portion and a pressure contact plate, the pressure contact plate is arranged in an arc shape, and a silicone pad is arranged on the arc pressure surface of the pressure contact plate.

[0022] Preferably, airbags are sequentially connected and arranged on the arc-shaped pressure surface of the pressure contact plate along the rotation direction of the rotating ring. When the airbags are inflated to the limit state, they are elliptical sac-shaped protrusions and are in pressure contact with the surface of the cavernous body skin.

[0023] Preferably, the regulating plate divides the pressure chamber into two chambers, one chamber is connected to the fixed bag, and the other chamber is connected to the first air bag at the head end of the pressure contact plate along the rotation direction of the rotating ring.

[0024] Preferably, when the rotating ring drives the adjustment plate to move to a preset position, the pressure chamber on one side connected to the fixed bag is in a negative pressure state, while the air pressure inside the chamber on the other side is compressed, so that the air bags on the pressure contact plate of the fixed bags of the adjacent pressure release units along the rotation direction are inflated in a wave-like manner one after another.

[0025] Preferably, a mainspring is arranged inside the fixing ring, the inner end of the mainspring is fixedly connected to the central axis, and the outer end of the mainspring is fixedly connected to the fixing ring.

[0026] Preferably, the central shaft is transmission-connected to the rotating ring via a gear set.

[0027] Preferably, the gear set is a reduction gear set.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] Through the rotation ring, adjusting plate and fixing bladder provided in the present invention, the rotation ring drives the adjusting plate to move to a preset position and adjusts the air pressure in the pressure chamber to be negative pressure, so as to suck the gas in the fixing bladder and release the pressure on the skin at the pressure contact point at the corresponding position. After the adjusting plate reaches the preset position, the third elastic member pushes the adjusting plate to disengage from the rotation ring and rebounds, and the fixing bladder is reinflated and expands to make pressure contact with the skin surface. The rotation ring is sequentially engaged with the adjusting plates of the pressure relief units along the rotation direction to achieve periodic dynamic pressure relief of the pressure contact points of the pressure relief units, so as to achieve periodic pressure release, thereby effectively avoiding necrosis of the corpus cavernosum under long-term pressure. At the same time, the comfort of the patient wearing is improved, thereby improving the nursing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0031] Figure 1 is a schematic cross-sectional structure diagram of the present invention;

[0032] Figure 2 is the present invention Figure 1 magnified view of part A;

[0033] Figure 3 is a schematic cross-sectional structure diagram of the present invention;

[0034] Figure 4 is the present invention Figure 3 magnified view of part C;

[0035] Figure 5 is the present invention Figure 4 magnified view of part D;

[0036] Figure 6 is the present invention Figure 4 magnified view of part E;

[0037] Figure 7 is the present invention Figure 4 variation diagram of part E;

[0038] Figure 8 is the present invention Figure 1 magnified view of part B.

[0039] Description of the markings in the figure: 1. Arc-shaped sleeve; 2. Limit mesh sleeve; 3. Fixed ring; 4. Rotating ring; 5. Pressure chamber; 6. Fixed bladder; 61. Telescopic part; 62. Pressure contact plate; 621. Airbag; 7. Spring; 8. First elastic member; 9. Adjusting plate; 91. Square column; 10. Second elastic member; 11. Third elastic member; 12. Convex block; 13. Arc-shaped groove; 14. Card slot; 15. Fixed block. Detailed implementation manners

[0040] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various replaceable structural ways and implementation manners. Therefore, the following detailed implementation manners and the drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0041] As Figures 1-8 shown, a post-prostate cancer anti-displacement fixation nursing device includes:

[0042] A fixed ring 3 sleeved on the corpus cavernosum;

[0043] Fixed bladders 6 circumferentially and evenly arranged on the inner wall of the fixed ring 3, which are inflated and deformed to form continuous pressure contact points with the skin surface of the corpus cavernosum to constrain the fixed ring 3 on the corpus cavernosum;

[0044] A pressure relief unit circumferentially and evenly arranged on the fixed ring 3 and corresponding to the fixed bladder 6, which includes:

[0045] A pressure chamber 5 opened inside the fixed ring 3 and communicated with the fixed bladder 6, which is an arc-shaped cavity;

[0046] An adjusting plate 9 elastically arranged along the arc bending direction of the pressure chamber 5;

[0047] A rotating ring 4 rotatably arranged on the outer wall of the fixed ring 3, which is radially clamped with the adjusting plate 9;

[0048] A third elastic member 11 embedded in the inner wall of the rotating ring 4, which is in a radially elastically compressed state by the adjusting plate 9;

[0049] The rotating ring 4 is configured to:

[0050] Drive the adjusting plate 9 to move to a preset position and adjust the air pressure in the pressure chamber 5 to be negative pressure to suck the gas in the fixed bladder 6 and release the pressure on the skin at the pressure contact point at the corresponding position;

[0051] After the adjusting plate 9 reaches the preset position, the third elastic member 11 pushes the adjusting plate 9 to disengage from the clamping with the rotating ring 4 and rebounds, and the fixed bladder 6 is re-inflated and expanded to make pressure contact with the skin surface;

[0052] The rotating ring 4 is successively clamped with the adjusting plate 9 of the pressure relief unit along the rotation direction to achieve the periodic dynamic pressure relief of the pressure contact point of the pressure relief unit.

[0053] Specifically, the catheter is successively passed through the fixing ring 3 of the device, the limiting mesh sleeve 2 fixed on the fixing ring 3, the arc-shaped sleeve 1 fixed at one end of the limiting mesh sleeve 2, and the fixing block 15 fixedly arranged on the outer arc surface of the bottom of the arc-shaped sleeve 1. After prostate cancer surgery, the fixing ring 3 is moved and sleeved on the corpus cavernosum, so that the limiting mesh sleeve 2 unfolds and pulls the arc-shaped sleeve 1 to move along the catheter until the arc-shaped sleeve 1 fits the skin around the urethral orifice at the end of the corpus cavernosum. As Figure 2 shown, the inflation hole is opened, and the annular cavity opened in the fixing ring 3 and communicated with the fixing bladder 6 is inflated through an external air source, so as to inflate the fixing bladder 6. The fixing bladder 6 inflates and deforms, and forms continuous pressure contact points with the skin surface of the corpus cavernosum. A macroscopic annular pressure contact surface is formed through the continuous pressure contact points, so as to constrain the fixing ring 3 on the corpus cavernosum, so as to limit the arc-shaped sleeve 1. As Figure 8 shown, the first knob rotatably arranged on the fixing block 15 is rotated, so as to drive the radially arranged fixing needle to rotate synchronously, so as to drive the threaded column fixedly arranged on the surface of the fixing needle to rotate, so that the threaded column rotates in the thread groove, so as to drive the fixing needle to move radially, so that the end of the fixing needle pierces into the outer wall of the catheter, so as to limit and fix the catheter, so as to avoid damage to the urethra caused by the displacement of the catheter.

[0054] Furthermore, since the catheter needs to stay in the urethra for more than 48 hours after prostate cancer surgery, the fixing ring 3 needs to be constrained on the corpus cavernosum for a long time. Since the fixing bladder 6 inflates and deforms, and forms continuous pressure contact points with the skin surface of the corpus cavernosum, and a macroscopic annular pressure contact surface is formed through the continuous pressure contact points, the corpus cavernosum is prone to necrosis under long-term pressure. A radially arranged card slot 14 is opened on the inner wall of the rotating ring 4. The third elastic member 11 is elastically arranged in the card slot 14. The initial position of the card slot 14 is first clamped with the square column 91 arranged on the adjusting plate 9 of a pressure relief unit. The third fixing plate of the third elastic member 11 contacts the square column 91. The square column 91 pushes against the third fixing plate to squeeze the third spring into an elastically compressed state. As Figures 3-5 shown, so as to Figure 3Taking the shown orientation as an example, drive the rotary ring 4 to rotate counterclockwise, so that the square column 91 is pushed by the bump 12 arranged on the groove wall of the card slot 14 to drive the adjusting plate 9 to move synchronously in the pressure chamber 5, and stretch the fourth spring arranged between the pressure chamber 5 and the adjusting plate 9, thereby adjusting the volume of the cavity of the pressure chamber 5 on one side of the fourth spring to become larger, so as to adjust the cavity of the pressure chamber 5 on one side of the fourth spring to be in a negative pressure state, so as to pump air out of the fixed bladder 6 communicated with the cavity on this side, so that the fixed bladder 6 shrinks, so as to release the pressure on the pressure contact point at the corresponding position, and avoid the pressure contact point of the corpus cavernosum being in a compressed state for a long time, affecting blood circulation.

[0055] Further, as Figure 4 shown, a first elastic member 8 is embedded on the cavity wall of the pressure chamber 5 on the side without the fourth spring of the adjusting plate 9 and close to the catheter. When the adjusting plate 9 moves to the preset position, the adjusting plate 9 just contacts the first fixing plate of the first elastic member 8, and the contact surfaces coincide. At this time, since the elastic coefficient of the third spring is greater than the elastic coefficient of the first spring fixedly arranged on the first fixing plate, the third spring moves the square column 91 out of the card slot 14 by pushing against the third fixing plate due to restoring deformation, thereby releasing the clamping state between the adjusting plate 9 and the rotary ring 4. At this time, the adjusting plate 9 pushes against the first fixing plate to squeeze the first spring to elastically contract, and the adjusting plate 9 is clamped at this preset position.

[0056] Further, as the rotating ring 4 continues to rotate, the arc-shaped groove 13 formed on the inner wall of the rotating ring 4 on the side of the bump 12 close to the fourth spring gradually moves to the position of the adjusting plate 9, thereby reserving space for the adjusting plate 9. Under the action of the restoring deformation of the first spring, the adjusting plate 9 is pushed out of the embedding groove of the first elastic member 8 through the first fixing plate, so that the adjusting plate 9 rebounds and resets along the arc-shaped groove 13 under the action of the restoring deformation of the fourth spring, and the air pressure in the pressure chamber 5 is adjusted and compressed, so as to re-inject the gas into the fixed bladder 6, so that the fixed bladder 6 is re-inflated and expanded, and makes pressure contact with the surface of the spongy body skin, thereby realizing the short-term pressure release at the pressure contact point. Under the pushing action of the inclined surface arranged at the end of the arc-shaped groove 13, the adjusting plate 9 returning to the initial position is elastically compressed by the second fixing plate of the second elastic member 10 and is clamped into the embedding groove of the second elastic member 10 to wait for the next movement. At the same time, as the rotating ring 4 continues to rotate, the clamping groove 14 of the rotating ring 4 moves to the adjacent pressure release unit and corresponds to the square column 91 of the adjusting plate 9 of the pressure release unit. At this time, since the elastic coefficient of the second spring is greater than that of the third spring, under the action of the restoring deformation of the second spring of the second elastic member 10, the adjusting plate 9 is pushed to drive the square column 91 to move radially, and after being clamped with the clamping groove 14, it continues to move synchronously with the rotating ring 4, so as to sequentially perform dynamic pressure release on the pressure contact points to realize periodic pressure release, thereby effectively avoiding the necrosis of the spongy body easily occurring under long-term pressure. At the same time, the comfort of the patient wearing is improved, so as to improve the nursing performance of the device.

[0057] It should be noted that a limiting ring is fixedly arranged on the inner wall of the rotating ring 4, and the limiting ring is rotatably arranged in the annular limiting groove arranged on the outer wall of the fixed ring 3, so that the rotating ring 4 can rotate on the fixed ring 3. The rotating ring 4 can be rotated by the cooperation of a motor and a gear, or by the cooperation of a motor and a connecting rod, or by a technical means well known to those skilled in the art to realize the rotation of the rotating ring 4.

[0058] The number of clamping points between the rotating ring 4 and the adjusting plate 9 is set to be a multiple of three and is circumferentially evenly distributed to shorten the periodicity of the dynamic pressure release of the pressure contact points.

[0059] Specifically, the number of clamping points between the rotating ring 4 and the adjusting plate 9 is set to be a multiple of three, and the number of pressure release units is also set to be a multiple of three, and the number of pressure release units can be divided evenly by the number of clamping grooves 14. The clamping grooves 14 on the inner wall of the rotating ring 4 can be provided with three, six or nine, etc., and the pressure release units can be set to twenty-four, thirty-six or forty-eight, etc. Now, taking the clamping grooves 14 being set to three and the pressure release units being set to twenty-four as an example, the following description is made:

[0060] There are three card slots 14, and twenty-four pressure relief units are provided, and both are evenly distributed. At this time, the card slots 14 divide the pressure relief units into three groups, and each group contains eight pressure relief units. As Figure 3 shown in the orientation for description, drive the rotary ring 4 to rotate counterclockwise, so that the square column 91 is pushed by the convex block 12 provided on the groove wall of the card slot 14 to drive the adjusting plate 9 to move synchronously in the pressure chamber 5, so that the fixed bladder 6 contracts to release pressure. Since there are three card slots 14, when the rotary ring 4 rotates, it drives the square column 91 to be pushed by three convex blocks 12 to drive the adjusting plate 9 to move synchronously in the pressure chamber 5, thereby driving the first pressure relief unit of each group to release pressure synchronously. As the rotary ring 4 moves, the pressure relief units of each group are released sequentially until the eighth and last pressure relief unit of each group is released. Then, the convex block 12 at the corresponding position enters the first pressure relief unit of the adjacent group, and the pressure relief units of this group are sequentially pressure-relieved, so that the pressure release cycle is shortened to one-third of the original, thereby realizing shortening the periodicity of dynamic pressure relief at the pressure contact point and further improving the comfort of the patient's wearing and the nursing performance of the device.

[0061] The time interval between the pressure releases of adjacent pressure relief units is 5–30 seconds, and the single pressure release duration of each pressure contact point is 1–5 seconds.

[0062] Specifically, the time required for the rotary ring 4 to rotate and drive the adjusting plate 9 in a pressure relief unit to move to a preset position through the card slot 14, then release the clamping, and then rotate with the rotary ring 4 into the adjacent pressure relief unit and engage with the adjusting plate 9 in this pressure relief unit is 5–30 seconds.

[0063] Furthermore, the duration for the rotary ring 4 to rotate and drive the adjusting plate 9 to move to a preset position through the card slot 14 and then release the clamping is 1–5 seconds.

[0064] The fixed bladder 6 includes a telescopic part 61 and a pressure contact plate 62. The pressure contact plate 62 is arc-shaped, and a silica gel pad is provided on the arc-shaped pressure surface of the pressure contact plate 62.

[0065] Specifically, by setting the fixed bladder 6 into two parts, namely the telescopic part 61 and the pressure contact plate 62, through the provided corrugated telescopic part 61, the fixed bladder 6 can radially expand and contract, so that the fixed bladder 6 expands along the preset direction and shape, improving the stability of the restraint system. Through the arc-shaped pressure contact plate 62 and the silica gel pad provided on the arc-shaped pressure contact surface, the pressure contact surface can better contact the surface of the sponge body skin, increasing the contact area, and the friction coefficient is increased through the provided silica gel pad, thereby increasing the friction force, and further improving the stability of the restraint system.

[0066] On the arc-shaped pressure surface of the pressure contact plate 62, air bags 621 are sequentially communicated along the rotation direction of the rotating ring 4. When the air bags 621 are inflated to the limit state, they are in the shape of oval bladder-like protrusions and are in pressure contact with the surface of the sponge body skin.

[0067] Specifically, by arranging the air bags 621 on the arc-shaped pressure surface of the pressure contact plate 62 and inflating the air bags 621, the air bags 621 on the pressure contact plate 62 are inflated in a wave-like manner in sequence, so as to perform micro-massage on the pressure contact surface at the position of the pressure contact plate 62, promote blood circulation of the pressure contact surface, further avoid discomfort caused by long-term pressure on the pressure contact surface, and further improve the safety and comfort of the device.

[0068] The adjusting plate 9 divides the pressure chamber 5 into two cavities. One cavity is communicated with the fixed bladder 6, and the other cavity is communicated with the first air bag 621 at the first end along the rotation direction of the rotating ring 4 on the pressure contact plate 62.

[0069] During the process that the rotating ring 4 drives the adjusting plate 9 to move to a preset position, the cavity of the pressure chamber 5 on the side communicated with the fixed bladder 6 is in a negative pressure state, while the air pressure inside the other cavity is compressed, so that the air bags 621 on the pressure contact plate 62 of the fixed bladders 6 of adjacent pressure release units along the rotation direction are inflated in a wave-like manner in sequence.

[0070] Specifically, during the process that the rotating ring 4 drives the adjusting plate 9 to move to a preset position, the cavity of the pressure chamber 5 on the side communicated with the fixed bladder 6 is in a negative pressure state, while the air pressure inside the other cavity is compressed, so that the air bags 621 on the pressure contact plate 62 of the fixed bladders 6 of adjacent pressure release units along the rotation direction are inflated in a wave-like manner in sequence, so as to perform micro-massage on the pressure contact surface at the position, promote blood circulation. When the rotating ring 4 drives the card slot 14 to move to this pressure release unit and contacts the adjusting plate 9, pressure release is performed, so as to realize massaging the pressure contact surface first to promote blood circulation and then performing pressure release, so as to further improve the effect of pressure release, without the need for an additional air source for inflation, simplify the structure and save the manufacturing cost.

[0071] A hairspring 7 is arranged inside the fixed ring 3. The inner end of the hairspring 7 is fixedly connected with a central shaft, and the outer end is fixedly connected with the fixed ring 3.

[0072] The central shaft is in transmission connection with the rotating ring 4 through a gear set.

[0073] The gear set is a reduction gear set.

[0074] Specifically, as Figure 2As described above, pulling the second knob drives the first gear fixedly arranged on the central shaft out of engagement, and then rotating the second knob fixedly arranged at the end of the central shaft, thereby driving the central shaft to rotate, thereby driving the mainspring 7 to tighten and deform. Then, the second knob returns to its original position, and the first gear on the second knob returns to the meshing state. Due to the recovery of deformation, the mainspring 7 drives the central shaft to rotate in the reverse direction, thereby driving the second gear engaged therewith to rotate synchronously, thereby driving the third gear fixedly arranged on the second gear shaft to rotate. Further driving the fourth gear to rotate between the teeth of the third gear and the inner wall of the rotating ring 4, further driving the rotating ring 4 to rotate. The diameters of the first gear and the second gear are the same, the diameter of the third gear is smaller than that of the second gear, and the diameter of the fourth gear is larger than that of the second gear. Thus, when the third gear rotates one week, the fourth gear rotates a certain angle, thereby realizing the slow rotation of the rotating ring 4. There is no need for an additional driving source to drive the rotation of the rotating ring, further reducing the manufacturing cost and being more in line with the characteristics of medical consumables.

[0075] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A postoperative anti-displacement fixation nursing device for prostate cancer, characterized in that include: A fixing ring, which is sleeved on the spongy body; The fixing bags are evenly distributed on the inner wall of the fixing ring in the circumferential direction, and the fixing bags are inflated and deformed to form continuous pressure contact points with the surface of the cavernous body skin, so as to constrain the fixing ring on the cavernous body; The pressure relief units are evenly distributed on the fixing ring and corresponding to the fixing bags, and include: A pressure chamber is provided inside the fixing ring and communicated with the fixing bag, and is an arc-shaped cavity; An adjustment plate elastically arranged along the arc bending direction of the pressure chamber; A rotating ring rotatably arranged on the outer wall of the fixed ring and radially engaged with the adjusting plate; The third elastic member is embedded in the inner wall of the rotating ring and is in a radial elastic compression state by the adjusting plate; The rotating ring is configured as follows: Drive the adjustment plate to move to a preset position and adjust the air pressure in the pressure chamber to a negative pressure, so as to suck the gas in the fixed bag and release the pressure on the skin at the pressure contact point at the corresponding position; After the adjustment plate reaches the preset position, the third elastic member pushes the adjustment plate to disengage from the engagement with the rotating ring and rebound, and the fixing bag is inflated again to come into pressure contact with the skin surface; The rotating ring is sequentially engaged with the adjusting plates of the pressure relief unit along the rotating direction to achieve periodic dynamic pressure relief at the pressure contact points of the pressure relief unit.

2. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 1, wherein: The number of the clamping points between the rotating ring and the adjusting plate is set to a multiple of three and is evenly distributed in the circumferential direction to shorten the periodicity of the dynamic pressure release of the pressure contact point.

3. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 2, wherein: The pressure release time interval between adjacent pressure release units is 5-30 seconds, and the single pressure release duration of each pressure contact point is 1-5 seconds.

4. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 3, wherein: The fixing bag comprises a telescopic portion and a pressure contact plate. The pressure contact plate is arranged in an arc shape, and a silicone pad is arranged on the arc pressure surface of the pressure contact plate.

5. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 4, characterized in that: Airbags are arranged on the arc-shaped pressure surface of the pressure contact plate in sequence along the rotation direction of the rotating ring. When the airbags are inflated to the limit state, they are elliptical sac-shaped protrusions and are in pressure contact with the surface of the cavernous body skin.

6. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 5, wherein: The regulating plate divides the pressure chamber into two chambers, one chamber on one side is connected with the fixed bag, and the other chamber on the other side is connected with the first air bag at the head end along the rotation direction of the rotating ring on the pressure contact plate.

7. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 6, characterized in that: When the rotating ring drives the adjustment plate to move to the preset position, the pressure chamber on one side connected to the fixed bag is in a negative pressure state, while the air pressure inside the chamber on the other side is compressed, so that the air bags on the pressure contact plate of the fixed bags of the adjacent pressure release units along the rotation direction are inflated in a wave-like manner one after another.

8. The postoperative anti-displacement fixation nursing device for prostate cancer according to claim 1, wherein: A mainspring is arranged in the fixing ring, the inner end of the mainspring is fixedly connected to the central axis, and the outer end of the mainspring is fixedly connected to the fixing ring.

9. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 8, wherein: The central shaft is transmission-connected with the rotating ring through a gear set.

10. The prostate cancer postoperative anti-displacement fixation nursing device according to claim 9, characterized in that: The gear set is a reduction gear set.

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