Auxiliary device for artificial hip joint replacement

Abstract

The invention relates to the technical field of medical apparatuses and instruments, and discloses an auxiliary device for artificial hip joint replacement, which comprises a limiting seat, a placement seat with a cavity structure is connected to the limiting seat, an inferior arc placement groove is formed in the placement seat, and a plurality of pressure sore prevention assemblies are mounted in the placement seat. An inflation and deflation mechanism is installed in the containing base and connected with a pressure sore prevention assembly, the pressure sore prevention assembly comprises an arc-shaped plate, a plurality of supporting air bags are fixedly connected to the arc-shaped plate at equal intervals, and the supporting air bags are arranged on the containing groove. According to the auxiliary device for artificial hip joint replacement, the contact area between the auxiliary device and the limbs of a patient can be increased through cooperation of the multiple expanded supporting air bags, so that bearing pressure increase caused by too small contact area is avoided, meanwhile, the two sets of supporting air bags alternately change, the contact part between the auxiliary device and the limbs of the patient can be changed, and the pressure sore prevention effect is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an auxiliary device for artificial hip joint replacement. Background Art

[0002] Artificial hip replacement is a mature and reliable treatment method in which an artificial prosthesis, including the femoral part and the acetabulum part, is fixed to normal bone using bone cement and screws to replace the diseased joint and reconstruct the normal function of the patient's hip joint.

[0003] After hip surgery, patients need to rest in a supine or lateral position to prevent adverse movements such as internal rotation of the affected limb, which may affect normal recovery after surgery. Currently, a triangular pillow is mainly placed between the patient's legs to restrain the affected limb, but the triangular pillow has a single function and the patient's limbs are prone to pressure sores if they lie flat for a long time. The patent document with the prior art publication number CN117731501A provides an auxiliary pillow for hip replacement, which includes a first airbag and a gas delivery mechanism. By inflating and deflating the first airbag, the pressure distribution in the patient's legs can be changed to avoid thrombosis in the local leg due to long-term high pressure.

[0004] Although the above literature has many beneficial effects, the following problems still exist: since all the first airbags are in different inflation and deflation states, the patient's limbs only contact the first airbags in the inflated state, resulting in a reduced contact area, increased pressure on the limbs, and low comfort. At the same time, the position of the first airbag is fixed, and the patient's limbs always contact the first airbags in the same position, resulting in poor pressure sore prevention effect. Therefore, we propose an auxiliary device for artificial hip replacement. Summary of the invention

[0005] The present invention is proposed in view of the problem that, since all the first airbags are in different inflation and deflation states, the patient's limbs only contact with the first airbags in the inflated state, which leads to a reduced contact area, increased pressure on the limbs, and lower comfort; at the same time, the position of the first airbag is fixed, the patient's limbs always contact with the first airbag in the same position, and the effect of preventing pressure sores is poor.

[0006] Therefore, the object of the present invention is to provide an auxiliary device for artificial hip replacement, which aims to solve the problem that since all first airbags are in different inflation and deflation states, the patient's limbs only contact with the first airbags in the inflated state, resulting in reduced contact area, increased pressure on the limbs, and lower comfort; at the same time, the position of the first airbag is fixed, the patient's limbs are always in contact with the first airbag in the same position, and the anti-pressure sore effect is poor.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an auxiliary device for artificial hip replacement, comprising a limit seat, the limit seat is connected to a placement seat with a cavity structure, the placement seat is provided with an inferior arc placement groove, a plurality of pressure sore prevention components are installed in the placement seat, an inflation and deflation mechanism is installed in the placement seat, and the inflation and deflation mechanism is connected to the pressure sore prevention components;

[0008] The anti-pressure sore assembly comprises an arc-shaped plate, on which a plurality of support airbags are fixedly connected at equal intervals, and the support airbags are arranged on the placement groove;

[0009] The inflation and deflation mechanism includes a reciprocating screw driven by a motor, the reciprocating screw is transmission-coordinated with a push plate, air storage airbags are provided on both sides of the push plate, the air storage airbags are connected to the supporting airbags, a positioning piece is installed on the air storage airbags, one end of the reciprocating screw is transmission-connected with a positioning rod, the positioning rod and the positioning piece cooperate to control the telescopic state of the air storage airbag.

[0010] As a preferred solution of the auxiliary device for artificial hip replacement described in the present invention, the limiting seat includes a base plate, two limiting plates are connected to the base plate, a plurality of clamping blocks are fixedly connected to one side of the limiting plate, and clamping seats adapted to the clamping blocks are fixedly connected to both sides of the placement seat.

[0011] As a preferred solution of the auxiliary device for artificial hip replacement of the present invention, wherein: a screw is rotatably connected to the bottom plate, two screw sleeves are threadedly connected to the screw, and a limiting rod is hinged between the screw sleeve and the limiting plate.

[0012] As a preferred solution of the auxiliary device for artificial hip joint replacement of the present invention, a plurality of restraint belts are connected to the placement seat.

[0013] As a preferred solution of the auxiliary device for artificial hip replacement of the present invention, wherein: the reciprocating screw rod is slidably matched with a sliding sleeve, the push plate is fixedly connected to the sliding sleeve, and the push plate is slidably connected to the placement seat.

[0014] As a preferred embodiment of the auxiliary device for artificial hip joint replacement described in the present invention, one side of the air storage airbag is connected to trachea 1, a plurality of trachea 2 are fixedly connected to the trachea 1, the trachea 2 is installed on an arc plate, and the trachea 2 is alternately connected to a plurality of supporting airbags.

[0015] As a preferred solution of the auxiliary device for artificial hip replacement described in the present invention, the positioning member includes a fixed plate and a movable plate respectively connected to the two ends of the air storage airbag, the fixed plate is fixedly connected in the placement seat, and sliding rods are fixedly connected on both sides of the movable plate. The sliding rods are slidably connected to the fixed plate, and a spring is elastically connected between the movable plate and the fixed plate.

[0016] As a preferred solution of the auxiliary device for artificial hip replacement described in the present invention, the positioning rod is slidably connected to the fixing plate, a plurality of positioning holes are formed on the positioning rod, a positioning groove is formed on the sliding rod, and the positioning holes are abutted against the positioning grooves.

[0017] As a preferred embodiment of the auxiliary device for artificial hip replacement of the present invention, wherein: one end of the reciprocating screw is rotatably connected to a driving sleeve, the driving sleeve is provided with two driving grooves, the push plate is fixedly connected to two driving rods, and the driving rods are in sliding contact with the driving grooves;

[0018] One end of the driving sleeve is fixedly connected with a cam, and the cam is in sliding contact with the positioning rod.

[0019] As a preferred solution of the auxiliary device for artificial hip joint replacement of the present invention, a heating element is fixedly connected to the bottom of the arc-shaped plate.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention arranges the support airbags in an expanded or contracted state in a dot matrix, so that a plurality of expanded support airbags can cooperate to increase the contact area with the patient's limbs, thereby avoiding an increase in pressure due to a small contact area. At the same time, the two groups of support airbags are alternately changed to change the contact position with the patient's limbs, further improving the effect of preventing pressure sores. Before the two groups of support airbags are changed, they are kept in an expanded state at the same time, so that the patient's limbs can be prevented from moving, thereby improving safety.

[0022] 2. The present invention drives the two screw sleeves to move when the screw rod is rotated, and the screw sleeves cooperate with the limiting rod to make the two limiting plates unfold in an eight-shaped shape, so as to better fit the movement trajectory of the human body's legs when they are unfolded, so that the patient's limbs can be limited to maintain a more comfortable and natural limb placement state, thereby improving the comfort of use.

[0023] 3. The present invention heats the placement seat after the heating element is turned on. When the patient's limbs are exposed and placed on the placement seat, the placement seat can be heated to keep the patient's limbs warm and protect them, further improving comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0025] in:

[0026] Figure 1 It is a schematic diagram of the overall structure of the auxiliary device for artificial hip joint replacement of the present invention.

[0027] Figure 2 It is a schematic diagram of the structure of the limiting plate of the auxiliary device for artificial hip joint replacement of the present invention.

[0028] Figure 3 It is a schematic structural diagram of a placement seat and a pressure sore prevention component of the auxiliary device for artificial hip joint replacement of the present invention.

[0029] Figure 4 This is a schematic anatomical diagram of the bottom structure of the placement seat of the auxiliary device for artificial hip joint replacement of the present invention.

[0030] Figure 5 This is a schematic diagram of the anti-pressure sore component and the air storage bag structure of the auxiliary device for artificial hip joint replacement of the present invention.

[0031] Figure 6 The present invention is a schematic diagram of the push plate and air storage bag structure of the auxiliary device for artificial hip joint replacement.

[0032] Figure 7 This is a schematic diagram of the disassembled structure of the positioning member and the positioning rod of the auxiliary device for artificial hip joint replacement of the present invention.

[0033] Figure 8 The figure is a schematic diagram of the drive sleeve and cam structure of the auxiliary device for artificial hip joint replacement of the present invention.

[0034] Description of reference numerals:

[0035] 1. Limiting seat; 101. Bottom plate; 102. Limiting plate; 103. Block; 104. Screw; 105. Screw sleeve; 106. Limiting rod; 2. Placement seat; 201. Placement slot; 202. Holder; 203. Restraint belt; 3. Pressure sore prevention component; 301. Arc plate; 302. Support airbag; 4. Inflating and deflation mechanism; 401. Motor; 402. Reciprocating screw; 403. Sliding sleeve; 4 04, push plate; 405, air storage bag; 406, air pipe one; 407, air pipe two; 408, positioning piece; 4081, fixed plate; 4082, movable plate; 4083, slide rod; 4084, spring; 4085, positioning groove; 409, positioning rod; 4091, positioning hole; 410, drive sleeve; 411, drive groove; 412, drive rod; 413, cam; 5, heating element. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Example 1

[0039] Reference Figure 1-6 , which is the first embodiment of the present invention, provides an auxiliary device for artificial hip joint replacement, the auxiliary device for artificial hip joint replacement includes a limiting seat 1, the limiting seat 1 is connected to a placement seat 2 with a cavity structure, the placement seat 2 is provided with an inferior arc-shaped placement groove 201, a plurality of anti-pressure sore components 3 are installed in the placement seat 2, an inflation and deflation mechanism 4 is installed in the placement seat 2, and the inflation and deflation mechanism 4 is connected to the anti-pressure sore component 3.

[0040] In the above technical scheme, multiple anti-pressure sore components 3 are evenly spaced in the placement groove 201. After the patient's affected limb is placed on the placement groove 201, the inflation and deflation mechanism 4 intermittently inflates and deflates the anti-pressure sore component 3. Multiple anti-pressure sore components 3 cooperate to alternately replace the contact parts with the patient's limbs to prevent the occurrence of pressure sores.

[0041] The anti-pressure sore component 3 includes an arc-shaped plate 301 , on which a plurality of support airbags 302 are fixedly connected at equal intervals, and the support airbags 302 are arranged on the placement groove 201 .

[0042] In the above technical solution, the support airbag 302 is in a long strip structure, and the length direction of the support airbag 302 is arranged parallel to the axial direction of the placement groove 201. The two adjacent support airbags 302 on the same arc plate 301 are in different expansion / contraction states, and the two adjacent support airbags 302 on the same axial direction are also in different expansion / contraction states, so that the support airbags 302 in the expanded state and the support airbags 302 in the contracted state are both distributed in a dot matrix. Multiple support airbags 302 in the expanded state cooperate to provide large-area contact support for the patient's limbs, while ensuring blood circulation of the limbs and preventing the occurrence of pressure sores.

[0043] The inflation and deflation mechanism 4 includes a reciprocating screw 402 driven by a motor 401, and a push plate 404 is provided on the reciprocating screw 402 for transmission. Air storage airbags 405 are provided on both sides of the push plate 404. The air storage airbags 405 are connected to the supporting airbag 302. A positioning piece 408 is installed on the air storage airbag 405. A positioning rod 409 is transmission-connected to one end of the reciprocating screw 402, and the positioning rod 409 cooperates with the positioning piece 408 to control the telescopic state of the air storage airbag 405.

[0044] In the above technical solution, when the push plate 404 is located at one end close to the motor 401, the two air storage airbags 405 are in compression / air storage state respectively. The air storage airbag 405 in the compression state transports the internal air to the supporting airbag 302 connected thereto, and the supporting airbag 302 expands. The air storage airbag 405 in the air storage state is filled with air, causing the supporting airbag 302 connected thereto to be in a contracted state.

[0045] The motor 401 is installed in the cavity of the placement seat 2, and the reciprocating screw rod 402 is rotatably connected to the cavity. When the motor 401 drives the reciprocating screw rod 402 to rotate, the push plate 404 translates and contacts the air storage airbag 405 in the air storage state. The air storage airbag 405 is compressed and the internal air is transmitted to the supporting airbag 302 connected thereto, so that the supporting airbag 302 expands. When the air storage airbag 405 is fully compressed, the positioning rod 409 moves and engages with the positioning member 408, limiting the air storage airbag 405 to prevent it from recovering. Then the reciprocating screw rod 402 drives the positioning rod 409 to move, and the positioning rod 408 cancels the limit of the other positioning member 408, so that the air storage airbag 405 in the positioning member 408 stretches and recovers, and the air in the supporting airbag 302 connected to the air storage airbag 405 is sucked away, so that the supporting airbag 302 shrinks, thereby completing the state switching of the two groups of supporting airbags 302.

[0046] The limiting seat 1 includes a bottom plate 101 , to which two limiting plates 102 are connected. One side of the limiting plate 102 is fixedly connected with a plurality of clamping blocks 103 . Both sides of the placement seat 2 are fixedly connected with clamping seats 202 adapted to the clamping blocks 103 .

[0047] In the above technical solution, when in use, the two limiting plates 102 are respectively on the inner sides of the patient's limbs, used to separate the patient's limbs to avoid touching. The clamping seat 202 is engaged with the clamping block 103, so that the placement seat 2 can be placed on one side of any limiting plate 102, so that the direction can be changed according to the orientation of the patient's limbs, thereby reducing the number of equipment and improving ease of use.

[0048] It can be understood that a buffer pad is fixedly provided on the side of the two limiting plates 102 away from each other to prevent the patient's limbs from directly contacting the limiting plates 102, thereby improving the comfort of use.

[0049] A screw rod 104 is rotatably connected to the bottom plate 101 , two screw sleeves 105 are threadedly connected to the screw rod 104 , and a limiting rod 106 is hinged between the screw sleeve 105 and the limiting plate 102 .

[0050] In the above technical solution, one end of the screw rod 104 is fixedly connected to a handwheel. When the handwheel is turned, the screw rod 104 drives the two screw sleeves 105 to move synchronously. The limiting rod 106 can drive the limiting plate 102 to move, so that the distance between the two limiting plates 102 can be adjusted to achieve adjustment and adaptation according to the patient's body shape.

[0051] In some embodiments, reference Figure 2 The length of the limiting rod 106 at one end away from the hand wheel is shorter than the length of the limiting rod 106 at the other end. Therefore, the two limiting plates 102 are spread out in an eight-shaped shape when they are away from each other, thereby better fitting the gap when the human limbs are spread out and improving the comfort of use.

[0052] The placement seat 2 is connected to a plurality of straps 203 , which may be any of a snap-on type, a Velcro type, etc. When the patient's limb is placed on the placement slot 201 , the straps 203 are used to further fix and limit the patient's limb, thereby improving the safety protection of the patient's limb.

[0053] A sliding sleeve 403 is slidably fitted on the reciprocating screw rod 402 , a push plate 404 is fixedly connected to the sliding sleeve 403 , and the push plate 404 is slidably connected to the placement seat 2 .

[0054] In the above technical solution, refer to Figure 4 The inner walls on the left and right sides of the placement seat 2 are both provided with sliding grooves, and the ends of the push plate 404 are arranged in the sliding grooves. The sliding grooves limit the push plate 404, so that when the reciprocating screw 402 drives the sliding sleeve 403, the sliding sleeve 403 is limited by the push plate 404 and cannot rotate, so that when the reciprocating screw 402 rotates, it can drive the push plate 404 to translate.

[0055] One side of the air storage airbag 405 is connected to an air pipe 1 406, and a plurality of air pipes 2 407 are fixedly connected to the air pipe 1 406. The air pipes 2 407 are installed on the arc plate 301, and the air pipes 2 407 are alternately connected to the plurality of supporting airbags 302. Figure 5 The two air storage airbags 405 are connected to the multiple support airbags 302 through trachea 1 406 and trachea 2 407, wherein the air storage airbag 405 in the compressed state is connected to the support airbag 302 in the expanded state, and the air storage airbag 405 in the air storage state is connected to the support airbag 302 in the contracted state.

[0056] The positioning member 408 includes a fixed plate 4081 and a movable plate 4082 respectively connected to the two ends of the air storage bag 405. The fixed plate 4081 is fixedly connected in the placement seat 2. Both sides of the movable plate 4082 are fixedly connected with sliding rods 4083. The sliding rods 4083 are slidably connected to the fixed plate 4081, and a spring 4084 is elastically connected between the movable plate 4082 and the fixed plate 4081.

[0057] In the above technical solution, when the push rod 404 moves, the movable plate 4082 drives the air storage bag 405 to be compressed, and the spring 4084 is compressed and stored. Then the positioning rod 409 can be engaged with the sliding rod 4083 to prevent the air storage bag 405 from rebounding and resetting. At this time, the positioning rod 409 and the other positioning member 408 are in a non-contact state, and the other air storage bag 405 is in an extended air storage state under the action of the spring 4084.

[0058] During use, the position of the placement seat 2 on the limiting seat 1 is adjusted according to the position of the patient's affected limb, and the placement seat 2 is fixed by engaging the clamping seat 202 with the clamping block 103. After the patient's limb is placed on the placement groove 201, the patient's limb is further fixed by the restraint belt 203, and the screw 104 is rotated to drive the screw sleeve 105 to move, so that the two limiting plates 102 are separated and limited on both sides of the patient's limbs. Multiple alternatingly protruding support airbags 302 provide support for the patient's limbs to prevent the occurrence of pressure sores.

[0059] The motor 401 drives the reciprocating screw rod 402 to rotate, and the sleeve 403 drives the push plate 404 to translate, driving the air storage bag 405 in the air storage state to be compressed, so that the support air bag 302 connected to the air storage bag 405 is inflated. When the sleeve 403 slides to the other end of the reciprocating screw rod 402, the push plate 404 drives the positioning rod 409 to move, so that the positioning rod 409 is engaged with the positioning piece 408 on the air storage bag 405 that has just completed the contraction, and at the same time, the engagement with the other positioning piece 408 is cancelled, so that the air storage bag 405 that was originally in the contracted state is reset, and the support air bag 302 connected to it is contracted, completing the position replacement of the support air bag 302, and realizing the replacement of the support point of the patient's limb.

[0060] Example 2

[0061] Reference Figure 7-Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the positioning rod 409 is slidably connected to the fixing plate 4081, a plurality of positioning holes 4091 are provided on the positioning rod 409, a positioning groove 4085 is provided on the sliding rod 4083, and the positioning hole 4091 is abutted against the positioning groove 4085.

[0062] In the above technical solution, the positioning rod 409 is only engaged with one positioning member 408 at a time. When the positioning hole 4091 abuts against the positioning groove 4085, the sliding rod 4085 cannot slide, so the compressed air bag 405 cannot be restored. Whenever the push plate 404 completes the compression of the air bag 405, the positioning groove 4085 of the sliding rod 4083 passes through the fixed plate 4081 and moves to the other side. The push plate 404 then drives the positioning rod 409 to move in an azimuth, so that the engagement between the positioning rod 409 and the current positioning member 408 is cancelled, and the engagement of the other positioning rod 408 is limited, so that the sliding rod 4084 in the positioning rod 408 whose limit is cancelled can assist the air bag 405 to rebound and recover under the action of the spring 4085.

[0063] In some embodiments, when the push plate 404 is located on the reciprocating screw 401 and close to one end of the positioning rod 409, the two air storage bags 405 are in a compressed state, so that the two groups of support air bags 302 remain in an inflated state. Then, when one of the air storage bags 405 rebounds, it drives the support air bags 302 connected to it to deflate and contract, thereby completing the replacement of the support point of the patient's limbs. Therefore, during the period of supporting the air bags 302, the patient's limbs always remain still and will not move, thereby improving the safety effect of limiting the patient's limbs.

[0064] One end of the reciprocating screw rod 402 is rotatably connected to a drive sleeve 410, and two drive grooves 411 are provided on the drive sleeve 410. Two drive rods 412 are fixedly connected to the push plate 404, and the drive rods 412 are in sliding contact with the drive grooves 411. One end of the drive sleeve 410 is fixedly connected to a cam 413, and the cam 413 is in sliding contact with the positioning rod 409.

[0065] In the above technical solution, the driving groove 411 is arranged in a spiral shape. When the push plate 404 drives the air storage bag 405 to compress, the protrusion on the driving rod 412 contacts one end of the driving groove 411, and then the protrusion cooperates with the driving groove 411 to drive the driving sleeve 410 to rotate. When the protrusion 411 completes the one-way movement in the driving groove 411, the driving sleeve 410 rotates 180°, and the cam 413 rotates synchronously with the driving sleeve 410 to realize the orientation change of the positioning rod 409.

[0066] It is understandable that an oblique groove connected to the drive sleeve 410 is opened on one end of the drive slot 411 close to the positioning rod 409, so that when the push plate 404 moves in the reverse direction, the drive rod 412 can slide along the oblique groove, thereby avoiding driving the drive sleeve 410 to rotate in the opposite direction.

[0067] The remaining structures are the same as those of Example 1.

[0068] Example 3

[0069] Reference Figure 5, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that a heating element 5 is fixedly connected to the bottom of the arc plate 301.

[0070] In the above technical solution, the heating element 5 can heat the inside of the placement seat 2 after being powered on, so that the surface temperature of the placement seat 2 reaches a comfortable temperature adapted to the human body, further improving the comfort of the patient's limbs when limiting the position.

[0071] It is understandable that a control module is provided in the placement seat 2, the motor 401 and the heating element 5 are both connected to the control module signal, and the control module can be connected to the external remote control device signal to control the opening and closing of the motor 401 and the heating rack 5.

[0072] The remaining structures are the same as those of Example 1.

[0073] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An auxiliary device for artificial hip joint replacement, characterized in that: The invention comprises a limiting seat (1), the limiting seat (1) is connected to a placement seat (2) with a cavity structure, the placement seat (2) is provided with an inferior arc-shaped placement groove (201), a plurality of pressure sore prevention components (3) are installed in the placement seat (2), an inflation and deflation mechanism (4) is installed in the placement seat (2), and the inflation and deflation mechanism (4) is connected to the pressure sore prevention components (3); The anti-pressure sore component (3) comprises an arc-shaped plate (301), on which a plurality of support airbags (302) are fixedly connected at equal intervals, and the support airbags (302) are arranged on the placement groove (201); The inflation and deflation mechanism (4) comprises a reciprocating screw (402) driven by a motor (401), the reciprocating screw (402) being transmission-coordinated with a push plate (404), both sides of the push plate (404) being provided with air storage airbags (405), the air storage airbags (405) being connected to a support airbag (302), a positioning member (408) being mounted on the air storage airbag (405), one end of the reciprocating screw (402) being transmission-coordinated with a positioning rod (409), the positioning rod (409) being cooperated with the positioning member (408) for controlling the telescopic state of the air storage airbag (405).

2. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: The limiting seat (1) comprises a bottom plate (101), two limiting plates (102) are connected to the bottom plate (101), a plurality of clamping blocks (103) are fixedly connected to one side of the limiting plate (102), and clamping seats (202) adapted to the clamping blocks (103) are fixedly connected to both sides of the placement seat (2).

3. The auxiliary device for artificial hip joint replacement according to claim 2, characterized in that: The bottom plate (101) is rotatably connected to a screw rod (104), two screw sleeves (105) are threadedly connected to the screw rod (104), and a limiting rod (106) is hingedly connected between the screw sleeve (105) and the limiting plate (102).

4. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: A plurality of restraining belts (203) are connected to the placement seat (2).

5. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: The reciprocating screw rod (402) is slidably matched with a sliding sleeve (403), the push plate (404) is fixedly connected to the sliding sleeve (403), and the push plate (404) is slidably connected to the placement seat (2).

6. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: One side of the air storage airbag (405) is connected to an air pipe 1 (406), and a plurality of air pipes 2 (407) are fixedly connected to the air pipe 1 (406). The air pipes 2 (407) are installed on the arc plate (301), and the air pipes 2 (407) are alternately connected to a plurality of supporting airbags (302).

7. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: The positioning member (408) comprises a fixed plate (4081) and a movable plate (4082) respectively connected to two ends of the air storage bag (405); the fixed plate (4081) is fixedly connected to the placement seat (2); both sides of the movable plate (4082) are fixedly connected with sliding rods (4083); the sliding rods (4083) are slidably connected to the fixed plate (4081); and a spring (4084) is elastically connected between the movable plate (4082) and the fixed plate (4081).

8. The auxiliary device for artificial hip joint replacement according to claim 7, characterized in that: The positioning rod (409) is slidably connected to the fixing plate (4081), a plurality of positioning holes (4091) are provided on the positioning rod (409), a positioning groove (4085) is provided on the sliding rod (4083), and the positioning holes (4091) are in abutment with the positioning groove (4085).

9. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: One end of the reciprocating screw rod (402) is rotatably connected to a driving sleeve (410), the driving sleeve (410) is provided with two driving grooves (411), the push plate (404) is fixedly connected to two driving rods (412), and the driving rods (412) are in sliding contact with the driving grooves (411); One end of the driving sleeve (410) is fixedly connected to a cam (413), and the cam (413) is in sliding contact with the positioning rod (409).

10. The auxiliary device for artificial hip joint replacement according to claim 1, characterized in that: A heating element (5) is fixedly connected to the bottom of the arc-shaped plate (301).

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