CN113425530B

CN113425530B - Telescopic storage type dialysis patient puncture side limb fixing frame

Info

Publication number: CN113425530B
Application number: CN202110759155.3A
Authority: CN
Inventors: 杜培珍; 高萌
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-06-21
Anticipated expiration: 2041-07-05
Also published as: CN113425530A

Abstract

The invention discloses a telescopic storage type dialysis patient puncture side limb fixing frame which comprises a fixing seat, a first fixing bolt, a sliding seat, a second fixing bolt, a sliding groove, a locking groove, a sliding frame, a supporting frame, a first motor, a first rotating shaft, a limiting groove, a locking mechanism, a limiting mechanism, a limb supporting plate, an extending plate, an angle adjusting mechanism, an extending driving mechanism, a binding belt, a battery, a first switch and a second switch, wherein the device is fixed with a sickbed through the fixing seat and the first fixing bolt, and then the device is attached to the body position of a patient through adjusting the limiting mechanism, the locking mechanism, the angle adjusting mechanism and the extending driving mechanism according to the body shape or the body position of the patient, and then the patient puncture limb and the device can be fixedly restrained through the binding belt, so that the risk caused by the problem of arm movement of a hemodialysis patient is effectively solved, reducing the working strength of medical staff.

Description

Telescopic storage type dialysis patient puncture side limb fixing frame

Technical Field

The invention relates to the technical field of medical instruments, in particular to a telescopic storage type dialysis patient needle insertion side limb fixing frame.

Background

Hemodialysis, called hemodialysis for short. Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of a body, enabling the blood and electrolyte solution (dialysate) with similar body concentration to be inside and outside hollow fibers through a dialyzer consisting of a plurality of hollow fibers, and performing substance exchange by using dispersion and convection functions through a semipermeable membrane to remove metabolic waste in the body of a patient and maintain the balance of electrolyte and acid and alkali; the entire process of removing excess water from the body and returning the purified blood to the patient is known as hemodialysis.

And at present when carrying out hemodialysis to the patient, the arm of puncture side all generally all has not fixedly, because every dialysis time all is longer, lacks the device fixed with patient's arm, and patient's arm moves easily, and the position changes, leads to the dialysis tube to drop, and the pjncture needle syringe needle shifts, influences hemodialysis's progress, has increased patient's misery, has improved medical personnel's intensity of labour, in view of above shortcoming, it is necessary to design flexible storage formula dialysis patient and prick needle side limbs in fact.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a telescopic storage type dialysis patient needle insertion side limb fixing frame to solve the problems provided by the background technology.

In order to solve the technical problems, the technical scheme of the invention is as follows: a telescopic storage type dialysis patient puncture side limb fixing frame comprises a fixing seat, a first fixing bolt, a sliding seat, a second fixing bolt, a sliding groove, a locking groove, a sliding frame, a supporting frame, a first motor, a first rotating shaft, a limiting groove, a locking mechanism, a limiting mechanism, a limb supporting plate, an extending plate, an angle adjusting mechanism, an extending driving mechanism, a binding band, a battery, a first switch and a second switch, wherein the first fixing bolt penetrates through the lower end thread on the right side of the fixing seat, the sliding seat is arranged at the lower end on the left side of the fixing seat in a sliding mode, the second fixing bolt penetrates through the front end thread on the lower end on the left side of the fixing seat, the sliding groove is integrally formed in the middle end and the left side of the inside of the sliding seat, the locking groove is integrally formed in the upper end and the lower end on the left side of the inside of the sliding seat, the sliding frame is arranged at the upper end of the sliding seat in a sliding mode, and the sliding frame and the sliding groove are in one-to-one correspondence, the inner part of the sliding frame is rotatably provided with a support frame, the support frame is connected with the sliding frame in a sliding way, the bottom end of the inner part of the sliding frame is fixedly provided with a first motor, the upper end of the first motor is fixedly provided with a first rotating shaft, the first rotating shaft is in threaded connection with the support frame, the left side and the right side of the support frame are integrally provided with a limiting groove, the lower end of the sliding frame is slidably provided with a locking mechanism, the upper end of the inner left side of the sliding frame is provided with a limiting mechanism, the upper end of the support frame is rotatably provided with a limb support plate, the front end and the rear end of the limb support plate are slidably provided with extension plates, the lower end of the inner part of the limb support plate is fixedly provided with an angle adjusting mechanism, the left side of the middle end of the inner part of the limb support plate is fixedly provided with an extension driving mechanism, the upper end of the extension plate is fixedly provided with a binding band, the right side of the inner part of the sliding frame is fixedly provided with a battery, the middle end of the outer left side of the sliding frame is fixedly provided with a first switch, the left side of the limb supporting plate is fixedly provided with a second switch, the limiting mechanism consists of a pressing block, a second spring, a gear, a first rack, a limiting block, a third spring, an extrusion block, a fourth spring and a fixing groove, the upper end of the left side inside the sliding frame is slidably provided with the pressing block, the right side of the pressing block is fixedly sleeved with the second spring, the other end of the second spring is fixedly connected with the sliding frame, the middle end inside the pressing block is rotatably provided with the gear, the left end and the right end of the gear are engaged with the first rack which is slidably connected with the pressing block, the upper ends of the left first rack and the right first rack are fixedly provided with the limiting block, the inner side of the limiting block is fixedly provided with the third spring, the other end of the third spring is fixedly connected with the pressing block, and the upper end of the limiting block is slidably provided with the extrusion block, just extrusion piece and carriage sliding connection, extrusion piece left side fixed cover be equipped with the fourth spring, just the fourth spring other end and carriage fixed connection, carriage left side an organic whole be equipped with the fixed slot, just fixed slot and extrusion piece one-to-one

Furthermore, the locking mechanism consists of a locking block, a first spring, a moving block and a pressing rod, and the locking block is arranged at the lower end of the sliding frame in a sliding mode.

Furthermore, the upper end of the locking block is fixedly provided with a first spring, the other end of the first spring is fixedly connected with the sliding frame, the left side of the locking block is provided with a moving block in a sliding manner, the moving block is connected with the sliding frame in a sliding manner, the upper end of the moving block is fixedly provided with a pressing rod, and the pressing rod is connected with the sliding frame in a sliding manner.

Furthermore, the angle adjusting mechanism consists of a fixed block, a driving shaft, a traction rope, a tooth block and a fifth spring.

Further, the inside lower extreme of limbs backup pad set firmly the fixed block, just fixed block quantity a plurality of encircles set firmly in the inside lower extreme of limbs backup pad, support frame upper end rotate and be equipped with the drive shaft, the drive shaft outside encircle and set firmly the haulage rope, the haulage rope other end set firmly the tooth piece, just tooth piece and support frame sliding connection, just tooth piece quantity a plurality of and fixed block one-to-ones, the tooth piece inboard set firmly the fifth spring, just the fifth spring other end and support frame fixed connection.

Furthermore, the extension driving mechanism consists of a second motor, a second rotating shaft and a second rack.

Further, the inside middle-end left side of limbs backup pad set firmly the second motor, second motor right side set firmly the second pivot, just second pivot rotate with the limbs backup pad and be connected, the second pivot about both ends mesh and be equipped with the second rack, just upper end second rack front end and front end extension board sliding connection, just upper end second rack rear end and rear end extension board fixed connection, just lower extreme second rack front end and front end extension board fixed connection, just lower extreme second rack rear end and rear end extension board sliding connection.

Compared with the prior art, this flexible formula of accomodating dialysis patient side limbs mount of pricking, at first through the fixing base, first gim peg is fixed the device with the sick bed, later can be according to patient's size or position through to restriction mechanism, locking mechanism, angle adjustment mechanism and extension actuating mechanism's adjustment, make the device and patient position laminating, later can puncture the limb through the bandage with the patient and carry out fixed constraint with the device, the effectual risk that causes of the problem that the patient arm removed that has solved blood and has passed through, reduce medical personnel's working strength.

Drawings

FIG. 1 is a front sectional view of a telescopically received dialysis patient side limb mount with needle insertion;

FIG. 2 is a left side sectional view of a telescopically received dialysis patient side limb mount with needle insertion;

FIG. 3 is an enlarged partial front cross-sectional view of the limiting mechanism;

FIG. 4 is an enlarged partial front cross-sectional view of the locking mechanism;

FIG. 5 is a bottom perspective view of a telescopically received dialysis patient side limb mount with needle insertion;

fig. 6 is a bottom perspective view showing a storage state of the telescopically-stored dialysis patient needle insertion side limb fixing frame.

The device comprises a fixed seat 1, a first fixing bolt 2, a sliding seat 3, a second fixing bolt 4, a sliding groove 5, a locking groove 6, a sliding frame 7, a supporting frame 8, a first motor 9, a first rotating shaft 10, a limiting groove 11, a locking mechanism 12, a limiting mechanism 13, a limb supporting plate 14, an extending plate 15, an angle adjusting mechanism 16, an extending driving mechanism 17, a binding band 18, a battery 19, a first switch 20, a second switch 21, a locking block 1201, a first spring 1202, a moving block 1203, a pressing rod 1204, a pressing block 1301, a second spring 1302, a gear 1303, a first rack 1304, a limiting block 1305, a third spring 1306, a pressing block 1307, a fourth spring 1308, a fixing groove 1609, a fixing block 1601, a driving shaft 1602, a traction rope 1603, a tooth block 1604, a fifth spring 1701, a second motor 1701, a second rotating shaft 1702 and a first rack 1703.

The following detailed description will be further described in conjunction with the above-identified drawings.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.

As shown in fig. 1, 2, 3, 4, 5, 6, the telescopic side limb fixing frame for dialysis patient comprises a fixing base 1, a first fixing bolt 2, a sliding base 3, a second fixing bolt 4, a sliding groove 5, a locking groove 6, a sliding frame 7, a supporting frame 8, a first motor 9, a first rotating shaft 10, a limiting groove 11, a locking mechanism 12, a limiting mechanism 13, a limb supporting plate 14, an extending plate 15, an angle adjusting mechanism 16, an extending driving mechanism 17, a binding band 18, a battery 19, a first switch 20, a second switch 21, a first fixing bolt 2 penetrating through the lower end thread of the right side of the fixing base 1, a sliding base 3 sliding on the lower end of the left side of the fixing base 1, a second fixing bolt 4 penetrating through the front end thread of the left side of the fixing base 1, a sliding groove 5 integrally formed on the left side of the middle end inside the sliding base 3, and the sliding groove 5 being U-shaped, the upper end and the lower end of the left side in the sliding seat 3 are integrally provided with locking grooves 6, the upper end of the sliding seat 3 is slidably provided with a sliding frame 7, the sliding frame 7 corresponds to the sliding grooves 5 one by one, the sliding frame 7 is internally rotatably provided with a support frame 8, the support frame 8 is slidably connected with the sliding frame 7, the bottom end in the sliding frame 7 is fixedly provided with a first motor 9, the upper end of the first motor 9 is fixedly provided with a first rotating shaft 10, the first rotating shaft 10 is in threaded connection with the support frame 8, the left side and the right side of the support frame 8 are integrally provided with limiting grooves 11, the lower end of the sliding frame 7 is slidably provided with a locking mechanism 12, the upper end of the left side in the sliding frame 7 is provided with a limiting mechanism 13, the upper end of the support frame 8 is rotatably provided with a limb support plate 14, the front end and the rear end of the limb support plate 14 are slidably provided with extending plates 15, the lower end in the limb support plate 14 is fixedly provided with an angle adjusting mechanism 16, an extension driving mechanism 17 is fixedly arranged on the left side of the middle end inside the limb supporting plate 14, a binding belt 18 is fixedly arranged at the upper end of the extension plate 15, a battery 19 is fixedly arranged on the right side inside the sliding frame 7, a first switch 20 is fixedly arranged at the middle end of the left side outside the sliding frame 7, a second switch 21 is fixedly arranged on the left side of the limb supporting plate 14, the limiting mechanism 13 consists of a pressing block 1301, a second spring 1302, a gear 1303, a first rack 1304, a limiting block 1305, a third spring 1306, a pressing block 1307, a fourth spring 1308 and a fixing groove 1309, the pressing block 1301 is slidably arranged at the upper end of the left side inside the sliding frame 7, the second spring 1302 is fixedly sleeved on the right side of the pressing block 1301, the other end of the second spring 1302 is fixedly connected with the sliding frame 7, the gear 1303 is rotatably arranged at the middle end inside the pressing block 1301, the left end and the right end of the gear 1303 are engaged with the first rack 1304, the first rack 1304 is slidably connected with the pressing block 1301, the upper end of the first rack 1304 on the left side and the lower end of the first rack 1304 on the right side are fixedly provided with a limiting block 1305, the inner side of the limiting block 1305 is fixedly provided with a third spring 1306, the other end of the third spring 1306 is fixedly connected with the pressing block 1301, the upper end of the limiting block 1305 is slidably provided with a pressing block 1307, the pressing block 1307 is slidably connected with the sliding frame 7, the left side of the pressing block 1307 is fixedly sleeved with a fourth spring 1308, the other end of the fourth spring 1308 is fixedly connected with the sliding frame 7, the left side of the sliding frame 7 is integrally provided with a fixing groove 1309, the fixing grooves 1309 correspond to the pressing blocks 1307 one by one, the locking mechanism 12 is composed of a locking block 1201, a first spring 1204, a moving block 1203 and a pressing rod, the lower end of the sliding frame 7 is slidably provided with the locking block 1201, the upper end of the locking block 1201 is fixedly provided with the first spring 1202, the other end of the first spring 1202 is fixedly connected with the sliding frame 7, a moving block 1203 is arranged on the left side of the locking block 1201 in a sliding mode, the moving block 1203 is connected with the sliding frame 7 in a sliding mode, a pressing rod 1204 is fixedly arranged at the upper end of the moving block 1203, the pressing rod 1204 is connected with the sliding frame 7 in a sliding mode, the angle adjusting mechanism 16 consists of a fixed block 1601, a driving shaft 1602, a traction rope 1603, a tooth block 1604 and a fifth spring 1605, the fixed block 1601 is fixedly arranged at the lower end inside the limb supporting plate 14, the fixed blocks 1601 are fixedly arranged at the lower end inside the limb supporting plate 14 in a surrounding mode, the driving shaft 1602 rotates at the upper end of the supporting frame 8, the traction rope 1603 is fixedly arranged at the outer side of the driving shaft 1602 in a surrounding mode, the tooth block 1604 is fixedly arranged at the other end of the traction rope 1603, the tooth block 1604 is connected with the supporting frame 8 in a sliding mode, and the tooth blocks 1604 correspond to the fixed blocks 1601 in a one-to-one mode, a fifth spring 1605 is fixedly arranged at the inner side of the tooth block 1604, and the other end of the fifth spring 1605 is fixedly connected with a supporting frame 8, the extension driving mechanism 17 is composed of a second motor 1701, a second rotating shaft 1702 and a second rack 1703, a second motor 1701 is fixedly arranged on the left side of the middle end inside the limb supporting plate 14, a second rotating shaft 1702 is fixedly arranged on the right side of the second motor 1701, and the second rotating shaft 1702 is rotatably connected with the limb supporting plate 14, the upper and lower ends of the second rotating shaft 1702 are engaged with a second rack 1703, the front end of the second upper rack 1703 is connected with the front extension plate 15 in a sliding manner, the rear end of the second upper rack 1703 is fixedly connected with the rear extension plate 15, and the front end of the lower end second rack 1703 is fixedly connected with the front end extension plate 15, and the rear end of the lower end second rack 1703 is slidably connected with the rear end extension plate 15.

According to the telescopic retractable type limb fixing frame on the side of the puncture of the dialysis patient, medical staff firstly clamp the left side or the right side of a sickbed by the fixing seat 1, then clockwise rotate the first fixing bolt 2 to enable the first fixing bolt 2 to extrude the sickbed, so that the device is fixed with the sickbed, then the medical staff can move the sliding seat 3 leftwards, when the sliding seat 2 is linked with the sliding seat 7 and the limb supporting plate 14 to move to proper positions, clockwise rotate the second fixing bolt 4 to enable the second fixing bolt 4 to extrude the sliding seat 3, so that the current position of the sliding seat 3 is fixed, then the medical staff can extrude the pressing block 1301 rightwards to enable the pressing block 1301 to drive the extruding block 1307 to move rightwards until the extruding block 1307 is aligned with the fixing groove 1309, the extruding block 1307 moves backwards by the action of the third spring 1306 force, until the extruding block 1307 moves to the inside the fixing groove 1309, meanwhile, the pressing block 1307 is forced to move leftwards, so that the pressing block 1301 is moved to the position in the limiting groove 11 to be fixed, at this time, the medical staff can press the first switch 20 for a long time, so that the first single machine 9 starts the clockwise rotation function, further drives the first rotating shaft 10 to rotate clockwise, the supporting frame 8 moves upwards through the threaded connection of the first rotating shaft 10 and the supporting frame 8 and the rotation limiting effect of the pressing block 1301 on the supporting frame 8, when the pressing block moves to a proper position, the pressing on the first switch 20 can be cancelled, meanwhile, according to the actual use condition, the medical staff can press the pressing block 1301 to move rightwards, the fourth spring 1308 deforms, so that the pressing block 1301 presses the upper end limiting block 1305 to move downwards, through the meshing transmission of the first rack 1304 and the gear 1303, the first rack 1304 on the left side drives the gear 1303 to rotate anticlockwise, so that the first rack 1304 on the right side moves upwards, and then drive the lower end restriction block 1305 to move upwards, its purpose is to stagger the position of the restriction block 1305 and the fixed slot 1309, and then cancel the restriction action to the pressing block 1301, the fourth spring 1308 rebounds to make the pressing block 1301 move leftwards until returning to the initial position, at the same time, the rebounding action of the second spring 1302 makes the pressing block 1307 move leftwards, and then makes the pressing block 1307 stagger with the position of the restriction slot 11, and makes the pressing block 1301 cancel the restriction to the rotation of the support frame 8, at this time, the medical staff can press the first switch 20 for a long time, so that the first motor 9 is started to drive the first rotating shaft 10 to rotate clockwise and then drive the support frame 8 and the limb support plate 14 to rotate, when the limb support plate 14 rotates to the proper position, the pressing of the first switch 20 can be cancelled, and according to the actual use situation, the medical staff can press the limb support plate 14 forward, so that the limb support plate 14 drives the fixed block 1601 to rotate forward, so that the fixed block 1601 presses the tooth block 1604 to slide the tooth block 1604, the fifth spring 1605 deforms, when the fixed block 1601 moves to a position between the next tooth block 1604 and the tooth block 1604, the pressing force between the fixed block 1601 and the tooth block 1604 is eliminated, the tooth block 164 moves to a position between the next fixed block 1601 and the fixed block 1601 by the resilience of the fifth spring 1605, and the limb support plate 14 is restricted from rotating backwards, furthermore, the medical staff can press the second switch 21 for a long time, so that the second switch 21 starts the clockwise rotation function of the second motor 1701, so that the second rotating shaft 1702 rotates clockwise, and through the engagement between the second rotating shaft 1702 and the second tooth 1703, the second tooth 1703 at the upper end moves backwards, the second tooth 1703 at the lower end moves forwards, and the extension plate 15 is driven to move backwards, when the extension plate 15 moves to a proper position, the pressing on the second switch 21 can be eliminated, then the medical staff can fix the arm of the patient puncture through the binding band 18, and then restrict the movement of the arm of the patient, after the device is used, the medical staff firstly presses the second switch 21, so that the second switch 21 starts the counterclockwise rotation function of the second motor 1701, and then the second rotating shaft 1702 rotates counterclockwise to drive the second rack 1703 to link with the extension plate 15 to move in opposite directions, and then the extension plate 15 is stored, and then the medical staff can rotate the driving shaft 1602 clockwise, so that the pulling rope 1603 is wound on the upper end of the driving shaft 1602, and then the tooth block 1604 is driven to move inwards until the tooth block 1604 is staggered with the fixed block 1601, at this time, the limb support plate 14 can be rotated counterclockwise to the horizontal position, that is, the storage of the angle of the limb support plate 14 is completed, and then the pressing rod 1204 is pressed rightwards, so that the pressing rod 1204 drives the moving block 1203 to move rightwards, so that the moving block 1203 moves into the locking block 1201, and further presses the locking block 1201 to move upwards into the sliding frame 7, at this time, the first spring 1202 deforms, so that the locking block 1201 and the upper end locking groove 6 are staggered, then the pressing on the pressing rod 1204 is cancelled, at this time, medical staff can rotate the sliding frame 7 leftwards along the direction of the sliding groove 5 until the locking block 1201 and the lower end locking groove 6 are aligned, through the action of the resilience force of the first spring 1202, the locking block 1201 is forced to move upwards, at the same time, the pressing block 1203 is pressed to drive the pressing rod 1204 to move leftwards to an initial position, the sliding frame 7 can be rotated to the position of the lower end of the sliding seat 3 to be fixed, then the second fixing bolt 4 is rotated anticlockwise, so that the second fixing bolt 4 cancels the pressing on the sliding seat 3, and then the sliding seat 1203 moves rightwards to the sliding seat 3 until the sliding seat 3 moves to the right side inside the fixing seat 1, the second fixing bolt 4 is rotated clockwise, so that the second fixing bolt 4 fixes the current position of the sliding seat 3, that is, the device can be moved to the lower end of the sickbed for storage, and the battery 19 is used for supplying energy to the device.

Claims

1. The telescopic storage type dialysis patient puncture side limb fixing frame is characterized by comprising a fixing seat, a first fixing bolt, a sliding seat, a second fixing bolt, a sliding groove, a locking groove, a sliding frame, a supporting frame, a first motor, a first rotating shaft, a limiting groove, a locking mechanism, a limiting mechanism, a limb supporting plate, an extending plate, an angle adjusting mechanism, an extending driving mechanism, a binding band, a battery, a first switch and a second switch, wherein the first fixing bolt penetrates through the lower end thread on the right side of the fixing seat, the sliding seat is arranged at the lower end on the left side of the fixing seat in a sliding mode, the second fixing bolt penetrates through the front end thread at the lower end on the left side of the fixing seat, the sliding groove is integrally formed in the middle end and the left side of the inside of the sliding seat, the locking groove is integrally formed in the upper end and the lower end on the left side of the inside of the sliding seat, the sliding frame is arranged at the upper end of the sliding seat in a sliding mode, the sliding frame is in one-to-one correspondence with the sliding grooves, a support frame is rotatably arranged in the sliding frame and is in sliding connection with the sliding frame, a first motor is fixedly arranged at the bottom end in the sliding frame, a first rotating shaft is fixedly arranged at the upper end of the first motor and is in threaded connection with the support frame, limiting grooves are integrally formed in the left side and the right side of the support frame, a locking mechanism is slidably arranged at the lower end of the sliding frame, a limiting mechanism is arranged at the upper end of the left side in the sliding frame, a limb supporting plate is rotatably arranged at the upper end of the support frame, extending plates are slidably arranged at the front end and the rear end of the limb supporting plate, an angle adjusting mechanism is fixedly arranged at the lower end in the limb supporting plate, an extension driving mechanism is fixedly arranged at the left side of the middle end in the limb supporting plate, a binding band is fixedly arranged at the upper end of the extending plate, and a battery is fixedly arranged at the right side in the sliding frame, the middle end of the left side outside the sliding frame is fixedly provided with a first switch, the left side of the limb supporting plate is fixedly provided with a second switch, the limiting mechanism consists of a pressing block, a second spring, a gear, a first rack, a limiting block, a third spring, an extrusion block, a fourth spring and a fixing groove, the upper end of the left side inside the sliding frame is slidably provided with the pressing block, the right side of the pressing block is fixedly sleeved with the second spring, the other end of the second spring is fixedly connected with the sliding frame, the middle end inside the pressing block is rotatably provided with the gear, the left end and the right end of the gear are meshed with the first rack, the first rack is slidably connected with the pressing block, the upper end of the first rack on the left side and the lower end of the first rack on the right side are fixedly provided with the limiting block, the inner side of the limiting block is fixedly provided with a third spring, and the other end of the third spring is fixedly connected with the pressing block, the restriction piece upper end slide and be equipped with the extrusion piece, just extrusion piece and carriage sliding connection, the fixed cover in extrusion piece left side be equipped with the fourth spring, just the fourth spring other end and carriage fixed connection, carriage left side an organic whole be equipped with the fixed slot, just fixed slot and extrusion piece one-to-one.

2. The retractable side limb fixing frame for dialysis patient insertion according to claim 1, wherein the locking mechanism comprises a locking block, a first spring, a moving block and a pressing rod, and the locking block is slidably disposed at the lower end of the sliding frame.

3. The retractable side limb fixing frame for dialysis patient insertion according to claim 2, wherein the locking block has a first spring fixed at its upper end, and the other end of the first spring is fixedly connected to the carriage, and a moving block is slidably disposed at the left side of the locking block and slidably connected to the carriage, and a pressing rod is fixed at the upper end of the moving block and slidably connected to the carriage.

4. The retractable side limb holder for dialysis patients according to claim 1, wherein the angle adjusting mechanism comprises a fixed block, a driving shaft, a pulling rope, a tooth block and a fifth spring.

5. The retractable storage type dialysis patient side-pricking limb fixing frame as claimed in claim 1, wherein the lower end of the interior of the limb support plate is fixedly provided with a fixing block, the fixing blocks are fixedly arranged at the lower end of the interior of the limb support plate in a plurality of numbers, the upper end of the support frame is rotatably provided with a drive shaft, the outer side of the drive shaft is fixedly provided with a traction rope in a surrounding manner, the other end of the traction rope is fixedly provided with a tooth block, the tooth block is connected with the support frame in a sliding manner, the tooth blocks correspond to the fixing blocks in a plurality of numbers, a fifth spring is fixedly arranged on the inner side of the tooth block, and the other end of the fifth spring is fixedly connected with the support frame.

6. The retractable side limb holder for dialysis patients with needle insertion according to claim 1, wherein the extension driving mechanism comprises a second motor, a second rotating shaft and a second rack.

7. The retractable storage type dialysis patient needle insertion side limb fixing frame according to claim 1, wherein a second motor is fixedly arranged on the left side of the middle end inside the limb support plate, a second rotating shaft is fixedly arranged on the right side of the second motor, the second rotating shaft is rotatably connected with the limb support plate, a second rack is arranged on the upper end and the lower end of the second rotating shaft in a meshed manner, the front end of the second rack at the upper end is slidably connected with the front end extension plate, the rear end of the second rack at the upper end is fixedly connected with the rear end extension plate, the front end of the second rack at the lower end is fixedly connected with the front end extension plate, and the rear end of the second rack at the lower end is slidably connected with the rear end extension plate.