CN219331972U

CN219331972U - Adjustable restriction frame for knee joint replacement

Info

Publication number: CN219331972U
Application number: CN202320594271.9U
Authority: CN
Inventors: 熊波; 刘金富; 丁强; 周树龙; 容向宾
Original assignee: Guangxi University of Chinese Medicine
Current assignee: Guangxi University of Chinese Medicine
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-07-14
Anticipated expiration: 2033-03-23

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to an adjustable restriction frame for knee joint replacement, which comprises a bottom plate, wherein a supporting mechanism is arranged on the top end surface of the bottom plate, a thigh fixing mechanism is arranged on one side of the back of the top of the supporting mechanism, a shank fixing mechanism is arranged on one side of the front of the top of the supporting mechanism, the shank fixing mechanism can support and fix the shank of a patient, the thigh of the patient can be supported and fixed according to the bending degree of the shank of the patient and the inclination degree of the shank fixing mechanism, the thigh fixing mechanism can regulate the thigh of the patient according to the inclination degree of the thigh of the patient, the stability of the thigh fixing mechanism on supporting and fixing the thigh of the patient is effectively improved, the supporting height of the restriction frame can be regulated by the supporting mechanism, and the thigh fixing mechanism and the shank fixing mechanism after regulating the inclination angle of the support can be fixed, so that the practicability of the supporting mechanism is effectively improved.

Description

Adjustable restriction frame for knee joint replacement

Technical Field

The utility model relates to the technical field of medical equipment, in particular to an adjustable restriction frame for knee joint replacement.

Background

The knee joint surface of a person is covered by cartilage, the cartilage gradually wears down along with the increase of age, bones and ligaments around the knee joint are degenerated, knee joint pain, deformity and movement disorder are finally caused, the whole knee is not replaced by knee joint replacement, but the worn-down cartilage on the knee joint surface is replaced by a metal prosthesis and a macromolecule polyethylene wear-resistant gasket, when the knee joint treatment operation is carried out, the human power is required to lift the leg for sterilization, and a special person is required to hold a certain fixed angle during replacement.

The leg of the patient is continuously supported and limited by adopting manpower, the labor intensity of medical staff is continuously increased along with the operation, and when the muscles are tired, the arm supported by the medical staff is easy to loose, so that the leg of the operation part of the patient is loose, and the knee joint replacement operation is affected.

Therefore, how to design an adjustable restriction frame for knee joint replacement becomes a problem that we need to solve currently.

Disclosure of Invention

The utility model aims to provide an adjustable restriction frame for knee joint replacement, which aims to solve the technical problem that the prior art does not replace manual supporting and restricting devices for legs of patients and is convenient to adjust.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the knee joint replacement adjustable limiting frame comprises a bottom plate, wherein a supporting mechanism is arranged on the top end surface of the bottom plate, a thigh fixing mechanism is arranged on one side of the rear of the top of the supporting mechanism, and a shank fixing mechanism is arranged on one side of the front of the top of the supporting mechanism;

the supporting mechanism comprises side supporting cylinders, telescopic columns and supporting transverse shafts, wherein the two side supporting cylinders used for supporting are respectively arranged on the left side and the right side of the top end face of the bottom plate, the two telescopic columns are respectively embedded into the two side supporting cylinders, the telescopic columns can move in the side supporting cylinders, and the supporting transverse shafts with threads on two sides are arranged at the top positions between the two telescopic columns;

the thigh fixing mechanism comprises a thigh supporting part and thigh fixing belts, the thigh supporting part is connected with thigh shaft cylinders sleeved on two sides of the supporting transverse shaft, and the thigh fixing belts provided with magic tapes are sleeved on the middle parts of the thigh supporting part;

the shank fixing mechanism comprises a shank supporting part and a shank fixing belt, wherein the shank supporting part is connected with a shank shaft tube sleeved at the middle part of the supporting transverse shaft, and the shank fixing belt provided with a magic tape is connected.

Preferably, the knob mounting groove has been seted up at the top of side support section of thick bamboo, the inside top and the bottom terminal surface of knob mounting groove are provided with and rotate the guide post, install the lift adjust knob in the knob mounting groove, the lift adjust knob can be in the knob mounting groove rotation is preferential, the rotation guide groove has been seted up to the periphery of top and bottom of lift adjust knob, it imbeds to rotate the guide post rotate in the guide groove, the intermediate position of the bottom of flexible post is provided with the lift screw post, the lift screw post runs through the intermediate position of lift adjust knob.

Preferably, the two sides of the supporting cross shaft are sleeved with cross shaft fixing knobs, the cross shaft fixing knobs are located at positions between the two telescopic columns, and the thigh shaft barrel and the shank shaft barrel are located at positions between the two cross shaft fixing knobs.

Preferably, the thigh supporting part comprises a thigh supporting cylinder frame, a thigh supporting cylinder telescopic rod, a thigh supporting cylinder frame cotton pad and a thigh telescopic rod cotton pad, wherein the two thigh supporting cylinder frames are respectively connected with the outer side walls of the thigh shaft cylinders, the two thigh supporting cylinder frames are provided with clamping pins, the thigh supporting cylinder frames are respectively embedded into the two thigh supporting cylinder frames, the thigh supporting cylinder frame cotton pad is arranged at the top of the thigh supporting cylinder frame, the thigh telescopic rod cotton pad is arranged at the top of the thigh supporting cylinder frame telescopic rod, and the thigh supporting cylinder frame cotton pad and the thigh telescopic rod cotton pad are connected through a first rubber film.

Preferably, the shank support component comprises a shank support cylinder frame, a shank support telescopic rod, a shank support cylinder frame cotton pad and a shank telescopic rod cotton pad, wherein the two shank support cylinder frames are respectively connected with the outer side walls of the shank shaft cylinders, the two shank support telescopic rods provided with clamping pins are respectively embedded into the two shank support cylinder frames, the shank support cylinder frame cotton pad is arranged at the top of the shank support cylinder frame, the shank telescopic rod cotton pad is arranged at the top of the shank support telescopic rod, and the shank support cylinder frame cotton pad and the shank telescopic rod cotton pad are connected through a second rubber film.

Preferably, each of the shank shaft cylinders is sleeved with a shank shaft sponge cylinder, the shank support cylinder frame penetrates through shank shaft sponge cylinder open slots formed in the shank shaft sponge cylinders, each of the thigh shaft cylinders is sleeved with a thigh shaft sponge cylinder, and the thigh support cylinder frame penetrates through thigh shaft sponge cylinder open slots formed in the thigh shaft sponge cylinders.

Compared with the prior art, the utility model has the beneficial effects that:

1. this adjustable limit frame of knee joint replacement, supporting mechanism can be adjusted the supporting height of limit frame, and can also fix thigh fixed establishment and shank fixed establishment behind the inclination of adjusting the support, the effectual practicality that has improved supporting mechanism use.

2. The knee joint replacement adjustable limiting frame has the advantages that the lower leg fixing mechanism can support and fix the lower leg of a patient, the adjustment can be carried out according to the bending degree of the lower leg of the patient and the inclination degree of the lower leg fixing mechanism, and the lower leg of the patient and the lower leg fixing mechanism are wound and fixed through the lower leg fixing belt with the magic tape, so that the operation of the operation is facilitated when the joint replacement operation is carried out.

3. This adjustable restriction frame of knee joint replacement, thigh fixed establishment can support and fix patient's thigh, and can carry out preceding inclination regulation according to patient's thigh inclination, uses the thigh fixed band that is provided with the magic subsides to twine thigh fixed establishment and patient's thigh and fix for patient's thigh is fixed more stable, the effectual thigh fixed establishment of having improved supports and is fixed to patient's thigh.

Drawings

FIG. 1 is a schematic view of the overall structure of a restraint frame of the present utility model;

FIG. 2 is a side view of the restraint frame of the present utility model securing a patient's leg;

FIG. 3 is a schematic view of the structure of the base plate and the support mechanism of the present utility model;

FIG. 4 is a schematic view of the side support cylinder and telescoping column of the present utility model;

FIG. 5 is a schematic view of the side support barrel of the present utility model;

FIG. 6 is a schematic view of the side support barrel of the present utility model with the lift adjustment knob removed;

FIG. 7 is a schematic view of a lifting adjusting knob according to the present utility model;

FIG. 8 is a schematic structural view of a portion of the telescopic column and supporting cross shaft of the present utility model;

FIG. 9 is a schematic view of the thigh securing mechanism and the shank securing mechanism of the present utility model;

FIG. 10 is a schematic view of the thigh securing mechanism of the present utility model;

FIG. 11 is a schematic view of the structure of the calf immobilization mechanism of the present utility model;

FIG. 12 is a schematic view of the structure of the thigh shaft sponge cartridge of the present utility model;

fig. 13 is a schematic structural view of the calf shaft sponge cartridge of the present utility model.

Reference numerals illustrate: 1. a bottom plate; 2. a support mechanism; 3. thigh fixing mechanisms; 4. a shank fixation mechanism; 5. a shank fixing strap; 6. thigh fixing straps; 7. a side support cylinder; 8. a telescopic column; 9. supporting a transverse shaft; 10. lifting an adjusting knob; 11. a knob mounting groove; 12. rotating the guide post; 13. rotating the guide groove; 14. lifting the threaded column; 15. a shank shaft sponge tube; 16. thigh shaft sponge tube; 17. thigh shaft tube; 18. thigh support cylinder rack; 19. thigh support telescopic link; 20. thigh cylinder frame cotton pad; 21. a first rubber film; 22. thigh telescopic rod cotton pad; 23. a shank shaft tube; 24. a shank support cartridge holder; 25. a lower leg support telescopic rod; 26. a shank cylinder frame cotton pad; 27. a second rubber film; 28. a shank telescopic rod cotton pad; 29. open slots of thigh cotton cylinders; 30. open grooves of the shank cotton cylinders; 31. the transverse shaft fixes the knob.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of protection of the present utility model.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. refer to the orientation or positional relationship based on that shown in the drawings, or that the present utility model product is conventionally placed in use, merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more such features, and in the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise specifically limited.

Referring to fig. 1-13, the present utility model provides the following technical solutions: the knee joint replacement adjustable limiting frame comprises a bottom plate 1, wherein a supporting mechanism 2 is arranged on the top end surface of the bottom plate 1, a thigh fixing mechanism 3 is arranged on one side of the rear of the top of the supporting mechanism 2, and a shank fixing mechanism 4 is arranged on one side of the front of the top of the supporting mechanism 2;

the supporting mechanism 2 comprises side supporting cylinders 7, telescopic columns 8 and supporting transverse shafts 9, wherein the two side supporting cylinders 7 for supporting are respectively arranged at the left side and the right side of the top end face of the bottom plate 1, the two telescopic columns 8 are respectively embedded into the two side supporting cylinders 7, the telescopic columns 8 can move in the side supporting cylinders 7, and the supporting transverse shafts 9 with threads arranged at the two sides are arranged at the top position between the two telescopic columns 8;

the thigh fixing mechanism 3 comprises a thigh supporting part and thigh fixing belts 6, the thigh supporting part is connected with thigh shaft barrels 17 sleeved on two sides of a supporting transverse shaft 9, and the thigh fixing belts 6 provided with magic tapes are sleeved on the middle parts of the thigh supporting parts;

the shank fixing mechanism 4 comprises a shank supporting part and a shank fixing band 5, the shank supporting part is connected with a shank shaft tube 23 sleeved at the middle part of the supporting transverse shaft 9, and the shank fixing band 5 provided with a magic tape is connected.

In the preferred embodiment, knob mounting groove 11 has been seted up at the top of side support section of thick bamboo 7, the inside top and the bottom terminal surface of knob mounting groove 11 are provided with rotation guide post 12, install lift adjust knob 10 in the knob mounting groove 11, lift adjust knob 10 can rotate preferentially in knob mounting groove 11, rotation guide groove 13 has been seted up to the periphery of top and bottom of lift adjust knob 10, rotation guide post 12 embedding rotation guide groove 13 is interior, the intermediate position of the bottom of telescopic column 8 is provided with lift screw post 14, lift screw post 14 runs through the intermediate position of lift adjust knob 10, lift screw post 14 is connected with lift adjust knob 10 through the screw thread, the limit frame supports through bottom plate 1 and supporting mechanism 2, and the side support section of thick bamboo 7 and telescopic column 8 that supporting mechanism 2 set up can be to the height adjustment of limit frame support, when carrying out the adjustment through side support section of thick bamboo 7 and telescopic column 8 to the height of support, only need rotate clockwise or anticlockwise in knob mounting groove 11, make simultaneously rotation guide post 12 rotate in rotation guide groove 13 and carry out the intermediate position of bottom of telescopic column 8 and go on the guide post 14 and make the side support 5 or make the side support frame and just can be moved down at the height of the limit frame support through the screw thread, the convenient mode is realized at the height that the side support is convenient and the limit screw is moved down or the limit screw is moved down to the height is adjusted to the limit the side support frame to the height.

In the preferred embodiment, the two sides of the supporting cross shaft 9 are sleeved with the cross shaft fixing knobs 31, the cross shaft fixing knobs 31 are positioned between the two telescopic columns 8, the thigh shaft barrel 17 and the shank shaft barrel 23 are positioned between the two cross shaft fixing knobs 31, the cross shaft fixing knobs 31 are connected with threads on the two sides of the supporting cross shaft 9 through threads, the thigh shaft barrel 17 and the shank shaft barrel 23 are respectively arranged on the thigh fixing mechanism 3 and the shank fixing mechanism 4, the thigh fixing mechanism 3 and the shank fixing mechanism 4 can rotate through the connection of the thigh shaft barrel 17 and the shank shaft barrel 23 with the supporting cross shaft 9, the thigh fixing mechanism 3 and the shank fixing mechanism 4 can rotate by taking the supporting cross shaft 9 as a rotation shaft, so that the inclination angles of the thigh fixing mechanism 3 and the shank fixing mechanism 4 can be adjusted when the thigh fixing mechanism 3 and the shank fixing mechanism 4 are supported, after the inclination angles of the thigh fixing mechanism 3 and the shank fixing mechanism 4 are adjusted, the two pieces of the cross shaft fixing knobs 31 are screwed tightly to the thigh shaft barrel 17 and the shank shaft barrel 23, the two pieces of the thigh fixing mechanism 31 can be pressed against the thigh shaft barrel 17 and the shank shaft barrel 23, and the thigh fixing mechanism 3 and the shank fixing mechanism 4 can be fixed by the inclination angles of the thigh fixing mechanism 3 and the shank fixing mechanism 4 after the thigh fixing mechanism is adjusted;

make supporting mechanism 2 can adjust the supporting height of limit frame, and can also fix thigh fixed establishment 3 and shank fixed establishment 4 behind the inclination of regulation support, only need rotate lift adjust knob 10 and just can accomplish high regulation work when carrying out high regulation moreover, and when fixing thigh fixed establishment 3 and shank fixed establishment 4, only need rotate two cross axle fixed knob 31 and screw up, just can let two cross axle fixed knob 31 carry out the centre gripping fixed with thigh axle section of thick bamboo 17 and shank axle section of thick bamboo 23 that thigh fixed establishment 3 and shank fixed establishment 4 set up, the effectual practicality that has improved supporting mechanism 2 use.

In the preferred embodiment, the thigh support part comprises a thigh support cylinder frame 18, a thigh support frame telescopic rod 19, a thigh support frame cotton pad 20 and a thigh telescopic rod cotton pad 22, the two thigh support cylinder frames 18 are respectively connected with the outer side walls of the two thigh shaft cylinders 17, the two thigh support frame telescopic rods 19 provided with the clamping pins are respectively embedded into the two thigh support cylinder frames 18, the thigh support frame cotton pad 20 is arranged at the top of the thigh support cylinder frame 18, the thigh telescopic rod cotton pad 22 is arranged at the top of the thigh support frame telescopic rod 19, the thigh support frame cotton pad 20 and the thigh telescopic rod cotton pad 22 are connected through a first rubber membrane 21, the thigh fixing mechanism 3 can support and fix the thigh of a patient and can adjust the previous inclination degree according to the inclination degree of the thigh of the patient, when the limiting frame is used, the patient's nest is required to be placed on the top of the supporting cross shaft 9 to support the leg through the limiting frame, and at the same time, the patient's thigh is required to be supported by the thigh supporting part, when the inclination of the thigh fixing mechanism 3 is adjusted, the soft thigh cylinder frame cotton pad 20 and the thigh telescopic rod cotton pad 22 arranged on the thigh fixing mechanism 3 are required to be contacted and attached with the thigh of the patient, and the length of the thigh support telescopic rod 19 can be stretched and lengthened or shortened according to the length of the thigh, and the first rubber film 21 is also required to be stretched and contracted, and then clamped and fixed through the clamping pin, similar to the principle of an umbrella supporting rod, so that the thigh fixing mechanism 3 completely supports and supports the thigh of the patient, and the thigh fixing mechanism 3 and the thigh of the patient are wound and fixed by using the thigh fixing belt 6 provided with the magic tape, so that the thigh fixing of the patient is more stable, the thigh fixing mechanism 3 is effectively improved to support and fix the thigh of the patient.

In the preferred embodiment, the shank support member includes a shank support cylinder 24, a shank support cylinder telescopic rod 25, a shank support cylinder cotton pad 26 and a shank telescopic rod cotton pad 28, the two shank support cylinder 24 are respectively connected with the outer side walls of the two shank shaft cylinders 23, the two shank support cylinder telescopic rods 25 provided with the bayonet lock are respectively embedded into the two shank support cylinder 24, the shank support cylinder cotton pad 26 is arranged at the top of the shank support cylinder 24, the shank telescopic rod cotton pad 28 is arranged at the top of the shank support cylinder telescopic rod 25, the shank support cylinder cotton pad 26 and the shank telescopic rod cotton pad 28 are connected through a second rubber membrane 27, the shank fixing mechanism 4 can support and fix the shank of the patient, and can adjust the inclination of the shank fixing mechanism 4 according to the bending degree of the shank of the patient, when the joint replacement surgery is performed on the patient, the leg of the patient is required to be bent so that the leg of the patient is required to be bent downward, the leg of the patient is required to be placed on the lower leg fixing mechanism 4 after the leg of the patient is placed on the restraining frame, when the inclination degree of the lower leg fixing mechanism 4 is adjusted, the soft lower leg cylinder frame cotton pad 26 and the lower leg telescopic rod cotton pad 28 arranged on the lower leg fixing mechanism 4 are required to be contacted and attached to the lower leg of the patient, the length of the lower leg support telescopic rod 25 is telescopic according to the length of the lower leg of the patient, the telescopic lower leg support telescopic rod 25 is fixed through the clamping pin, the lower leg fixing mechanism 4 is clamped and fixed through the two transverse shaft fixing knobs 31, then the lower leg of the patient is wound and fixed together with the lower leg fixing mechanism 4 through the lower leg fixing belt 5 with the magic tape, so that the bent lower leg of the patient is supported and fixed, the operation is convenient when the joint replacement operation is carried out.

In the preferred embodiment, a shank shaft sponge tube 15 is sleeved outside each shank shaft tube 23, a shank shaft sponge tube opening groove 30 is formed by penetrating the shank shaft sponge tube 15 through the shank shaft sponge tube 24, a thigh shaft sponge tube 16 is sleeved outside each thigh shaft sponge tube 17, a thigh shaft sponge tube opening groove 29 is formed by penetrating the thigh shaft sponge tube 16 through the thigh shaft sponge tube 18, when the patient performs joint replacement surgery and places the legs on the limiting frame for supporting, a body nest arranged on the legs of the patient can be placed on the top of the supporting transverse shaft 9, the body nest of the patient can be contacted with the shank shaft sponge tube 15 and the thigh shaft sponge tube 16, the shank shaft sponge tube 15 and the thigh shaft sponge tube 16 are supported by soft materials, and the outer side walls of the shank shaft sponge tube 15 and the thigh shaft sponge tube 16 are arc-shaped, so that the body nest of the patient can be supported by the shank shaft sponge tube 15 and the thigh shaft sponge tube 16, and the body nest of the patient can be more comfortable when the shank shaft sponge tube 15 and the thigh shaft sponge tube 16 are contacted with the skin of the patient.

Working principle: when the device is used, firstly, the limiting frame is placed at the operation position, the height of the supporting mechanism 2 is adjusted according to the requirement, then the leg of a patient is placed on the limiting frame, the thigh fixing mechanism 3 is adjusted or rotated, so that the thigh fixing mechanism 3 contacts and is in contact with and supports the thigh of the patient, then the thigh fixing mechanism 4 is rotated and adjusted according to the requirement, so that the thigh fixing mechanism 4 contacts and is in contact with and supports the thigh of the patient, then the two transverse shaft fixing knobs 31 are screwed down, the thigh shaft barrel 23 and the thigh shaft barrel 17 which are respectively connected with the thigh fixing mechanism 3 and the thigh fixing mechanism 4 are clamped and fixed through the two transverse shaft fixing knobs 31, the thigh fixing mechanism 3 and the thigh fixing mechanism 4 can be fixed, finally the thigh fixing mechanism 4 and the thigh of the patient are respectively wound and fixed through the thigh fixing belt 5 and the thigh of the patient, and the thigh fixing mechanism 4 is connected and fixed through the adhesion of the magic tape, so that special people are not required to hold and fix during joint replacement operation, and the practical practicability of the medical device is improved for the patient.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable restriction frame for knee joint replacement, comprising a bottom plate (1), characterized in that: the upper end face of the bottom plate (1) is provided with a supporting mechanism (2), one side of the rear of the top of the supporting mechanism (2) is provided with a thigh fixing mechanism (3), and one side of the front of the top of the supporting mechanism (2) is provided with a shank fixing mechanism (4);

the supporting mechanism (2) comprises side supporting cylinders (7), telescopic columns (8) and supporting transverse shafts (9), wherein the two side supporting cylinders (7) used for supporting are respectively arranged on the left side and the right side of the top end face of the bottom plate (1), the two telescopic columns (8) are respectively embedded into the two side supporting cylinders (7), the telescopic columns (8) can move in the side supporting cylinders (7), and the supporting transverse shafts (9) with threads on two sides are arranged at the top positions between the two telescopic columns (8);

the thigh fixing mechanism (3) comprises a thigh supporting part and thigh fixing belts (6), the thigh supporting part is connected with thigh shaft barrels (17) sleeved on two sides of the supporting transverse shaft (9), and the thigh fixing belts (6) provided with the magic tape are sleeved on the middle parts of the thigh supporting part;

the shank fixing mechanism (4) comprises a shank supporting part and a shank fixing band (5), the shank supporting part is connected with a shank shaft tube (23) sleeved at the middle part of the supporting transverse shaft (9), and the shank fixing band (5) provided with a magic tape is connected.

2. A knee replacement adjustable restraint as recited in claim 1, wherein: the side support cylinder is characterized in that a knob mounting groove (11) is formed in the top of the side support cylinder (7), rotation guide posts (12) are arranged on the top and bottom end faces of the inside of the knob mounting groove (11), a lifting adjusting knob (10) is arranged in the knob mounting groove (11), and the lifting adjusting knob (10) can rotate in the knob mounting groove (11).

3. A knee replacement adjustable restraint as claimed in claim 2, wherein: the periphery of the top and the bottom of the lifting adjusting knob (10) is provided with a rotary guide groove (13), the rotary guide column (12) is embedded into the rotary guide groove (13), the middle position of the bottom of the telescopic column (8) is provided with a lifting threaded column (14), and the lifting threaded column (14) penetrates through the middle position of the lifting adjusting knob (10).

4. A knee replacement adjustable restraint as recited in claim 1, wherein: the two sides of the supporting cross shaft (9) are sleeved with cross shaft fixing knobs (31), the cross shaft fixing knobs (31) are located at positions between the two telescopic columns (8), and the thigh shaft barrel (17) and the shank shaft barrel (23) are located at positions between the two cross shaft fixing knobs (31).

5. A knee replacement adjustable restraint as recited in claim 1, wherein: the thigh supporting part comprises a thigh supporting cylinder frame (18), a thigh supporting cylinder frame telescopic rod (19), a thigh supporting cylinder frame cotton pad (20) and a thigh telescopic rod cotton pad (22), wherein the thigh supporting cylinder frame (18) is respectively connected with the outer side walls of the thigh shaft cylinder (17) and is provided with two clamping pins, the thigh supporting cylinder frame telescopic rod (19) is respectively embedded into the thigh supporting cylinder frame (18), the thigh supporting cylinder frame cotton pad (20) is arranged at the top of the thigh supporting cylinder frame (18), the thigh telescopic rod cotton pad (22) is arranged at the top of the thigh supporting cylinder frame telescopic rod (19), and the thigh supporting cylinder frame cotton pad (20) and the thigh telescopic rod cotton pad (22) are connected through a first rubber film (21).

6. An adjustable knee replacement restraint in accordance with claim 5, wherein: each thigh shaft barrel (17) is sleeved with a thigh shaft sponge barrel (16), and the thigh support barrel frame (18) penetrates through a thigh sponge barrel open groove (29) formed in the thigh shaft sponge barrel (16).

7. A knee replacement adjustable restraint as recited in claim 1, wherein: the utility model provides a shank supporting part includes shank supporting cylinder frame (24), shank support telescopic link (25), shank support cotton pad (26) and shank telescopic link cotton pad (28), two shank supporting cylinder frame (24) respectively with two the lateral wall of shank axle section of thick bamboo (23) links to each other, two that is equipped with the bayonet lock shank support telescopic link (25) are embedded two respectively in shank supporting cylinder frame (24), shank support cotton pad (26) set up the top of shank supporting cylinder frame (24), shank telescopic link cotton pad (28) set up the top of shank support telescopic link (25), shank support cotton pad (26) with shank telescopic link cotton pad (28) between link to each other through second rubber membrane (27).

8. A knee replacement adjustable restraint as recited in claim 7, wherein: each shank shaft tube (23) is sleeved with a shank shaft sponge tube (15), and the shank support tube frame (24) penetrates through a shank shaft sponge tube opening groove (30) formed in the shank shaft sponge tube (15).