CN113197749B - Cardiovascular operation support installation is fixed patient's seat - Google Patents

Abstract

The invention relates to a seat, in particular to a seat for fixing a patient by installing a cardiovascular operation bracket. The cardiovascular operation support with the protection function is convenient for people to adjust, does not influence subsequent operations, and is installed and fixed on a patient seat. A cardiovascular operation support mounting and fixing patient chair, comprising: the number of the grooved fixing blocks is two, and rubber buffer blocks are symmetrically arranged on the grooved fixing blocks; and the fixed supporting mechanism is arranged on the fixed block with the groove and is used for supporting. According to the invention, people sit on the fixed plate with the grooves, the back is contacted with the square plate, the protection pad plays a role in protecting the neck of people, when people lie down, the square plate is swung downwards by the back due to the action of gravity, so that the supporting plate swings upwards, the irregular plate is limited by contacting the fixed plate with the grooves with the square plate, and the supporting plate is in a vertical state and is contacted with the ground to support, so that the operation of people can be facilitated.

Description

Cardiovascular operation support installation is fixed patient's seat

Technical Field

The invention relates to a seat, in particular to a seat for fixing a patient by installing a cardiovascular operation bracket.

Background

The operation of the dirty stent is also called coronary stent implantation, i.e. a balloon catheter is placed into a narrow blood vessel through vascular puncture, the balloon is pressurized and inflated outside the body, the narrow blood vessel wall is spread, and the pathological blood vessel is restored to be smooth, so as to prevent the treatment of acute occlusion of the coronary artery. At present, most medical operation seats mainly adopt traditional reclining chairs, are inconvenient to adjust and low in comfort level, patients are difficult to sit on the chairs, follow-up medical staff are affected to operate, the existing chairs cannot protect the patients, the patients are easy to slide, and the medical operation seats are dangerous.

Therefore, a cardiovascular operation support with protection function is required to be researched and developed to be convenient for people to adjust, does not influence subsequent operations, and is installed and fixed on a patient seat so as to solve the problems in the prior art.

Disclosure of Invention

In order to overcome the problem that the patient is difficult to sit on the seat and the follow-up medical staff is affected to perform the operation, the existing seat cannot protect the patient, the patient is easy to slide down, and the patient is very dangerous. The invention aims to provide the cardiovascular operation bracket mounting and fixing patient seat which is convenient for people to adjust, does not influence subsequent operations and has a protective function.

The technical proposal is as follows: a cardiovascular operation support mounting and fixing patient chair, comprising: the number of the grooved fixing blocks is two, and rubber buffer blocks are symmetrically arranged on the grooved fixing blocks; the fixed supporting mechanism is arranged on the fixed block with the groove and is used for supporting; and the linkage mechanism is arranged on the fixed supporting mechanism and used for linkage.

As an improvement of the above scheme, the fixed support mechanism includes: the belt trough fixing plate is arranged between the two belt trough fixing blocks; the first rotating shaft is rotatably arranged on the fixed plate with the groove; the square plate is arranged on the first rotating shaft; the protection pad is arranged on the square plate; the irregular plate is symmetrically arranged on the square plate; the hinge blocks are symmetrically arranged on the square plate; and the supporting plate is hinged on the hinged block.

As an improvement of the scheme, the linkage mechanism comprises: the half gear is symmetrically arranged on the first rotating shaft; the guide blocks are four in number and are arranged on the fixed plate with the groove; the toothed ejector rod is slidably arranged between the two guide blocks and is meshed with the half gear; the hinge rod is rotatably arranged on the fixed plate with the groove; and the supporting plate is arranged on the hinging rod and is matched with the toothed top rod.

As an improvement of the scheme, the device also comprises a driving mechanism, wherein the driving mechanism comprises: the number of the fixing frames is four, and the fixing frames are uniformly arranged between the two fixed blocks with the grooves at intervals; the hydraulic cylinder is arranged between the two fixing frames; the reflux box is arranged between the other two fixing frames; the return pipe is arranged between the return box and the hydraulic cylinder; the pressing plate is slidably arranged on the hydraulic cylinder; the first spring is wound between the pressing plate and the hydraulic cylinder; the sliding frame is symmetrically and slidably arranged between the two fixed blocks with the grooves and is fixedly connected with the pressing plate; the fixed rod is arranged between the two fixed blocks with the grooves in a sliding mode; the second spring is arranged between the fixed rod and the fixed block with the groove; the honeycomb duct is arranged in the backflow box and communicated with the hydraulic cylinder; the rectangular sealing frame is embedded on the flow guide pipe and communicated with the flow guide pipe; the second rotating shaft is rotatably arranged on the rectangular sealing frame; the fan blade is arranged on the second rotating shaft; the reduction gearbox is arranged on one of the fixed blocks with the grooves, and the second rotating shaft is fixedly connected with an output shaft of the reduction gearbox; the transmission assembly is arranged between the second rotating shaft and the first rotating shaft.

As the improvement of above-mentioned scheme, still including protection machanism, protection machanism is including: the hinge brackets are symmetrically arranged on the fixed plate with the grooves; the protection plate is arranged on the hinge frame; the ratchet bar is arranged on the protection plate; the U-shaped fixing blocks are symmetrically arranged on the fixing plate with the grooves, and the ratchet bars penetrate through the U-shaped fixing blocks; the sliding rod is arranged on the U-shaped fixed block in a sliding manner and is matched with the ratchet bar; the third spring is wound between the U-shaped fixed block and the sliding rod; the convex blocks are symmetrically and slidably arranged on one of the sliding frames; and the fourth spring is arranged between one of the sliding frames and the convex block.

As the improvement of above-mentioned scheme, still including speed adjusting device, speed adjusting device includes: the chute blocks are symmetrically arranged on the hydraulic cylinder; the support rotating shaft is slidably arranged between the two chute blocks; the grooving rolling block is arranged on the supporting rotating shaft.

As the improvement of above-mentioned scheme, still include self-locking device, self-locking device includes: the annular grooving fixing block is arranged on the square plate; the circular slotting block is arranged on the first rotating shaft; the number of the jacking blocks is four, and the jacking blocks are arranged on the round slotting blocks in a sliding mode at intervals; and the fifth spring is arranged on the top block and the round slotted block.

As an improvement of the scheme, the protection pad is made of rubber.

The beneficial effects are that:

1. through people sitting to the fixed plate with grooves, back and square board contact, the protection pad plays the guard action to people's neck, when people lie down, because of the effect of gravity, the back makes square board down swing, and then makes the layer board upwards swing, and the sketch plate is spacing with the fixed plate contact with grooves to the square board, and the backup pad is vertical state and ground contact and plays the support, so, can make things convenient for people to perform the operation.

2. Through the effect of protection machanism, can protect the patient who sits to this device, so, can avoid people to produce the landing when sitting to this device.

3. Through speed adjusting device's device, can adjust the honeycomb duct bore, so, can make things convenient for people to adjust honeycomb duct bore size according to the demand.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

Fig. 3 is a schematic perspective view of the fixed support mechanism of the present invention.

Fig. 4 is a schematic perspective view of a linkage mechanism according to the present invention.

Fig. 5 is a schematic perspective view of the driving mechanism of the present invention.

Fig. 6 is a schematic perspective view of a protection mechanism according to the present invention.

Fig. 7 is a schematic perspective view of a speed regulating device according to the present invention.

Fig. 8 is a schematic perspective view of the self-locking device of the present invention.

Fig. 9 is an enlarged schematic view of the portion a of the present invention.

Fig. 10 is an enlarged schematic view of section B of the present invention.

Reference numerals in the figures: 1. the self-locking device comprises a grooved fixed block, 2, a rubber buffer block, 3, a fixed supporting mechanism, 31, a grooved fixed plate, 32, a first rotating shaft, 33, a square plate, 34, a protection pad, 35, a special plate, 36, a hinging block, 37, a supporting plate, 4, a linkage mechanism, 41, a half gear, 42, a guide block, 43, a toothed ejector rod, 44, a hinging rod, 45, a supporting plate, 5, a driving mechanism, 51, a fixed frame, 52, a hydraulic cylinder, 53, a pressing plate, 54, a first spring, 55, a sliding frame, 56, a fixed rod, 57, a second spring, 58, a guide pipe, 59, a rectangular sealing frame, 510, a second rotating shaft, 511, a fan blade, 512, a reduction gearbox, 513, a transmission assembly, 514, a reflux box, 515, a reflux pipe, 6, a protection mechanism, 61, a hinging frame, 63, a protection plate, 64, a ratchet bar, 65, a U-shaped fixed block, 66, a sliding rod, 67, a third spring, 68, a fourth spring, 69, a bump, 7, a speed adjusting device, 71, a block, 72, a supporting chute, 73, a grooved rolling block, 8, a ring-shaped block, an annular sealing block, 82, a fifth groove block, a self-locking device, a circular spring, 81 and a top locking device.

Detailed Description

The above-described aspects are further described below in conjunction with specific embodiments. It should be understood that these examples are illustrative of the present application and are not limiting the scope of the present application. The implementation conditions used in the examples may be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are generally those in routine experiments.

Example 1

The utility model provides a cardiovascular operation support installation fixed patient seat, as shown in fig. 1-4, including trough of belt fixed block 1, rubber buffer block 2, fixed stay mechanism 3 and link gear 4, trough of belt fixed block 1 quantity is two, and both sides all rigid coupling have rubber buffer block 2 around trough of belt fixed block 1 bottom, are equipped with fixed stay mechanism 3 on the trough of belt fixed block 1, are equipped with link gear 4 on the fixed stay mechanism 3.

The fixed supporting mechanism 3 comprises a fixed plate 31 with a groove, a first rotating shaft 32, a square plate 33, a protection pad 34, a special-shaped plate 35, a hinging block 36 and a supporting plate 37, wherein the fixed plate 31 with the groove is fixedly connected between the tops of the two fixed blocks 1 with the groove, the first rotating shaft 32 is rotatably arranged on the right part of the fixed plate 31 with the groove, the square plate 33 is fixedly connected with the middle part of the first rotating shaft 32 in the circumferential direction, the protection pad 34 is fixedly connected with the upper part of the left side surface of the square plate 33, the special-shaped plate 35 is fixedly connected with the right side surface of the square plate 33 in the front-rear direction, the hinging block 36 is fixedly connected with the right side surface of the square plate 33 in the front-rear direction, and the supporting plate 37 is arranged on the hinging block 36 in the hinging manner.

The linkage mechanism 4 comprises a half gear 41, guide blocks 42, toothed ejector rods 43, hinging rods 44 and supporting plates 45, the half gear 41 is symmetrically and fixedly connected on the front and back of the circumference of the first rotating shaft 32, the guide blocks 42 are symmetrically and fixedly connected on the front and back sides of the bottom of the grooved fixing plate 31, the toothed rods 43 are slidably arranged between the guide blocks 42 on the left and right sides of the front and back sides, the toothed rods 43 are meshed with the corresponding half gears 41, the hinging rods 44 are rotatably arranged on the left part of the grooved fixing plate 31, the supporting plates 45 are fixedly connected on the middle parts of the hinging rods 44 in the circumferential direction, and the supporting plates 45 are matched with the toothed rods 43.

Firstly, people sit on the fixed plate 31 with grooves, the back and square plate 33 contact, the protection pad 34 plays a protective role on the neck of people, when people lie down, the back enables the square plate 33 to swing downwards due to the action of gravity, the square plate 33 swings downwards to drive the first rotating shaft 32 to rotate forwards, the first rotating shaft 32 drives the half gear 41 to rotate forwards, the half gear 41 rotates forwards to drive the toothed ejector rod 43 to move leftwards, the toothed ejector rod 43 moves leftwards to be in contact with the supporting plate 45, the toothed ejector rod 43 drives the supporting plate 45 to swing upwards, and when the square plate 33 swings downwards for a certain distance, the abnormal plate 35 and the fixed plate 31 with grooves contact the square plate 33, meanwhile, the square plate 33 swings downwards due to the action of gravity to enable the supporting plate 37 to be in a vertical state to contact with the ground to support the square plate 33, so that people can conveniently perform operations, when the device is not needed, the square plate 33 is pulled to swing upwards to reset, the first rotating shaft 32 drives the toothed ejector rod 43 to move rightwards to be separated from the supporting plate 45 due to the action of the half gear 41, the supporting plate 45 swings downwards to reset, and the supporting plate 37 swings downwards to reset due to the action of gravity.

Example 2

On the basis of the embodiment 1, as shown in fig. 1, fig. 2, fig. 5, fig. 6, fig. 9 and fig. 10, the device further comprises a driving mechanism 5, wherein the driving mechanism 5 comprises a fixing frame 51, a hydraulic cylinder 52, a pressing plate 53, a first spring 54, a sliding frame 55, a fixing rod 56, a second spring 57, a guide pipe 58, a rectangular sealing frame 59, a second rotating shaft 510, a fan blade 511, a reduction box 512, a transmission assembly 513, a backflow box 514 and a backflow pipe 515, four fixing frames 51 are fixedly connected between the lower parts of the inner side surfaces of the fixed blocks 1 on the left side and the right side at equal intervals, a hydraulic cylinder 52 is fixedly connected between the tops of the two fixing frames 51 on the front side, a backflow box 514 is fixedly connected between the tops of the two fixing frames 51 on the rear side, a backflow pipe 515 is fixedly connected and communicated with the left part of the rear side surface of the hydraulic cylinder 52, the pressing plate 53 is arranged on the hydraulic cylinder 52 in a sliding manner, the first spring 54 is symmetrically wound around the top of the hydraulic cylinder 52 and the pressing plate 53, the fixing rods 56 are slidably arranged in the middle of the front side and the rear side of the two grooved fixing blocks 1, the sliding frame 55 is fixedly connected between the front side of the bottom of the sliding frame 55 and the top of the pressing plate 53, the second spring 57 is fixedly connected between the bottom of the fixing rod 56 and the inside of the grooved fixing block 1, the flow guide pipe 58 is fixedly connected and communicated between the right side surface of the backflow box 514 and the right side surface of the hydraulic cylinder 52, the rectangular sealing frame 59 is fixedly connected and communicated with the front part of the flow guide pipe 58, the middle part of the rectangular sealing frame 59 is rotatably provided with the second rotating shaft 510, the rear part of the second rotating shaft 510 is fixedly connected with the fan blade 511 in the circumferential direction, the fan blade 511 is positioned in the rectangular sealing frame 59, the front part of the right side surface of the right grooved fixing block 1 is fixedly connected with the reduction box 512, the second rotating shaft 510 penetrates through the reduction box 512 and is fixedly connected with the output shaft thereof, a transmission assembly 513 is connected between the front circumference of the second shaft 510 and the front circumference of the first shaft 32.

The protection mechanism 6 comprises a hinged frame 61, a protection plate 63, ratchet bars 64, U-shaped fixing blocks 65, sliding rods 66, third springs 67, fourth springs 68 and protruding blocks 69, wherein the hinged frame 61 is hinged to the front and rear parts of the grooved fixing plate 31, the protection plate 63 is fixedly connected to the top of the hinged frame 61, the ratchet bars 64 are fixedly connected to the middle of the bottom of the protection plate 63, the U-shaped fixing blocks 65 are fixedly connected to the right parts of the front and rear sides of the grooved fixing plate 31, the ratchet bars 64 penetrate through the U-shaped fixing blocks 65, sliding rods 66 are arranged on the U-shaped fixing blocks 65 in a sliding mode, the sliding rods 66 are matched with the ratchet bars 64, the third springs 67 are connected between the inner side faces of the U-shaped fixing blocks 65 and the inner side of the sliding rods 66 in a winding mode, protruding blocks 69 are symmetrically arranged on the front and rear sides of the right side of the right sliding frame 55, and the fourth springs 68 are fixedly connected between the inner side faces of the protruding blocks 69 and the inner side of the right sliding frame 55.

When people sit on the fixed plate 31 with grooves, the fixed rod 56 is stepped on to move downwards, the second spring 57 is compressed, the fixed rod 56 moves downwards to drive the sliding frame 55 to move downwards, the sliding frame 55 moves downwards to drive the pressing plate 53 to move downwards, the first spring 54 is compressed, under the action of air pressure, the pressing plate 53 moves downwards to enable the air discharged by the hydraulic cylinder 52 to drive the fan blade 511 to rotate forwards, the fan blade 511 drives the second rotating shaft 510 to rotate forwards, the second rotating shaft 510 rotates forwards with the transmission component 513, the transmission component 513 rotates forwards to drive the first rotating shaft 32 to rotate forwards, the first rotating shaft 32 rotates forwards to drive the square plate 33 to swing downwards, and the discharged air is discharged into the backflow box 514 through the backflow pipe 58, the backflow box 514 discharges air back into the hydraulic cylinder 52 through the backflow pipe 515, the fixed rod 56 is loosened, the fixed rod 56 drives the sliding frame 55 to move upwards to reset under the action of the first spring 54, and the pressing plate 53 also moves upwards to reset under the action of the first spring 54. Thus, people can conveniently drive the square plate 33 to swing.

Initially, the fourth spring 68 is in a compressed state, when people step on the fixing rod 56 to move downwards, the sliding frame 55 moves downwards to drive the protruding block 69 to move downwards, the protruding block 69 moves downwards to be separated from the ratchet bar 64, due to the effect of the fourth spring 68, the protruding block 69 moves rightwards to reset, when the fixing rod 56 is loosened, the sliding frame 55 moves upwards to drive the protruding block 69 to move upwards, the protruding block 69 moves upwards to drive the ratchet bar 64 to move upwards, due to the effect of the third spring 67, the ratchet bar 64 slides upwards from the sliding rod 66, the ratchet bar 64 moves upwards to drive the protecting plate 63 to move upwards, the protecting plate 63 moves upwards to enable the hinged frame 61 to open to play a supporting role, when the device is not needed, the sliding rod 66 is pulled to move outwards, the third spring 67 is compressed, the sliding rod 66 stops to limit the ratchet bar 64, the protecting plate 63 moves downwards to reset, the hinged frame 61 is folded, the protecting plate 63 moves downwards to drive the ratchet bar 64 to move downwards, the ratchet bar 64 moves downwards to contact with the protruding block 69, and the ratchet bar 64 moves leftwards due to the effect of the third spring 67, and the fourth spring 68 is compressed to reset to the proper position of the sliding rod 64. Thus, people can be prevented from sliding down when sitting on the device.

Example 3

On the basis of the embodiment 1 and the embodiment 2, as shown in fig. 2, 7 and 8, the device further comprises a speed regulating device 7, the speed regulating device 7 comprises a chute block 71, a supporting rotating shaft 72 and a slotting rolling block 73, the chute block 71 is fixedly connected to the upper part of the right side face of the hydraulic cylinder 52 in a front-back symmetrical mode, the supporting rotating shaft 72 is arranged between the chute blocks 71 on the front side and the rear side in a sliding mode, and the slotting rolling block 73 is arranged in the middle of the supporting rotating shaft 72 in a circumferential rotating mode.

The self-locking device 8 comprises an annular grooving fixing block 81, a circular grooving block 82, a fifth spring 83 and a top block 84, wherein the annular grooving fixing block 81 is fixedly connected to the right portion of the rear side face of the square plate 33, the circular grooving block 82 is fixedly connected to the rear portion of the first rotating shaft 32 in the circumferential direction, the circular grooving block 82 is located in the right portion of the annular grooving fixing block 81, four top blocks 84 are arranged on the circular grooving block 82 in a uniformly-spaced sliding mode, and the fifth spring 83 is fixedly connected between the inner side face of the top block 84 and the inner portion of the circular grooving block 82.

When people use the device, the supporting rotating shaft 72 can be pulled to move according to the requirements, the supporting rotating shaft 72 moves to drive the slotting rolling block 73 to move, and the slotting rolling block 73 moves to adjust the caliber of the flow guide pipe 58, so that people can conveniently adjust the caliber of the flow guide pipe 58 according to the requirements.

When the first rotating shaft 32 rotates, the first rotating shaft 32 rotates to further drive the circular slotting block 82 to rotate, the circular slotting block 82 rotates to drive the top block 84 to rotate, and the top block 84 rotates to be continuously inserted into the slot of the annular slotting fixed block 81 due to the action of the fifth spring 83, so that the positioning function is achieved, and the square plate 33 can be more stable when swinging.

While the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made therein without departing from the spirit and scope of the invention as defined in the following claims. Accordingly, the detailed description of the disclosed embodiments is to be taken only by way of illustration and not by way of limitation, and the scope of protection is defined by the content of the claims.

Claims (6)

1. A cardiovascular operation support installation fixed patient seat, which is characterized by comprising:

the rubber buffer blocks (2) are symmetrically arranged on the grooved fixing blocks (1);

the fixed supporting mechanism (3) is arranged on the fixed block (1) with the groove and is used for supporting;

the linkage mechanism (4) is arranged on the fixed supporting mechanism (3) and is used for linkage;

the fixed support mechanism (3) comprises:

a slotted fixing plate (31), wherein the slotted fixing plate (31) is arranged between the two slotted fixing blocks (1);

a first rotating shaft (32), wherein the first rotating shaft (32) is rotatably arranged on the fixed plate (31) with the groove;

a square plate (33), the square plate (33) being mounted on the first rotating shaft (32);

a protection pad (34), wherein the protection pad (34) is arranged on the square plate (33);

the irregular plate (35), the irregular plate (35) is symmetrically installed on the square plate (33);

the hinge blocks (36), the hinge blocks (36) are symmetrically arranged on the square plate (33);

a support plate (37), the support plate (37) being hinged to the hinge block (36);

the linkage mechanism (4) comprises:

a half gear (41), the half gear (41) being symmetrically mounted on the first rotation shaft (32);

the guide blocks (42), the number of the guide blocks (42) is four, and the guide blocks are arranged on the fixed plate (31) with the grooves;

a toothed top bar (43), the toothed top bar (43) being slidably mounted between two guide blocks (42) which mesh with the half gear (41);

the hinge rod (44), the hinge rod (44) is rotatably installed on the fixed plate (31) with the groove;

a pallet (45), the pallet (45) is mounted on a hinge rod (44) which is matched with the toothed top rod (43);

when people lie down, because of gravity effect, square board down swing is made to the back, square board down swing drives first pivot forward rotation, first pivot drives half gear forward rotation, half gear forward rotation drives and takes the tooth top pole to remove left, take tooth top pole to remove left and the layer board contact, take tooth top pole to drive the layer board up swing, and when square board down swing certain distance, the sketch board is spacing with trough of belt fixed plate contact counter plate, simultaneously because of gravity effect, square board down swing makes the backup pad swing be vertical state, the backup pad is vertical state and ground contact counter plate support.

2. A cardiovascular surgical stent mounting fixture patient chair according to claim 1, further comprising a drive mechanism (5), the drive mechanism (5) comprising:

the number of the fixing frames (51) is four, and the fixing frames (51) are uniformly arranged between two fixed blocks (1) with grooves at intervals;

a hydraulic cylinder (52), the hydraulic cylinder (52) being mounted between two of the holders (51);

the reflux box (514), the reflux box (514) is installed between two other fixing frames (51);

a return pipe (515), the return pipe (515) being mounted between the return tank (514) and the hydraulic cylinder (52);

the pressing plate (53), the pressing plate (53) is installed on the hydraulic cylinder (52) in a sliding manner;

the first spring (54) is wound between the pressing plate (53) and the hydraulic cylinder (52);

the sliding frame (55), the sliding frame (55) is symmetrically arranged between the two fixed blocks (1) with grooves, and is fixedly connected with the pressing plate (53);

a fixing rod (56), wherein the fixing rod (56) is slidably arranged between the two fixed blocks (1) with the grooves;

a second spring (57), the second spring (57) is installed between the fixed rod (56) and the fixed block (1) with the groove;

a flow guide pipe (58), wherein the flow guide pipe (58) is arranged in the backflow box (514) and communicated with the hydraulic cylinder (52);

the rectangular sealing frame (59), the rectangular sealing frame (59) is embedded on the honeycomb duct (58) and communicated;

the second rotating shaft (510), the second rotating shaft (510) is rotatably installed on the rectangular sealing frame (59);

the fan blade (511), the fan blade (511) is installed on the second rotating shaft (510);

the reduction gearbox (512), the reduction gearbox (512) is installed on one of the fixed blocks (1) with the grooves, and the second rotating shaft (510) is fixedly connected with an output shaft of the reduction gearbox (512);

and a transmission assembly (513), wherein the transmission assembly (513) is installed between the second rotating shaft (510) and the first rotating shaft (32).

3. A cardiovascular surgical stent mounting fixture patient chair according to claim 2, further comprising a protective mechanism (6), the protective mechanism (6) comprising:

the hinge brackets (61), the hinge brackets (61) are symmetrically arranged on the fixed plate (31) with the grooves;

a protection plate (63), wherein the protection plate (63) is arranged on the hinge frame (61);

a ratchet bar (64), wherein the ratchet bar (64) is arranged on the protection plate (63);

the U-shaped fixing blocks (65), the U-shaped fixing blocks (65) are symmetrically arranged on the grooved fixing plate (31), and the ratchet bars (64) penetrate through the U-shaped fixing blocks (65);

the sliding rod (66), the sliding rod (66) is installed on the U-shaped fixed block (65) in a sliding way, and the sliding rod is matched with the ratchet bar (64);

the third spring (67) is wound between the U-shaped fixed block (65) and the sliding rod (66);

the convex blocks (69), the convex blocks (69) are symmetrically and slidably arranged on one of the sliding frames (55);

and a fourth spring (68), wherein the fourth spring (68) is installed between one of the sliding frames (55) and the projection (69).

4. A cardiovascular surgical stent mounting fixture patient chair according to claim 3, further comprising a speed regulating device (7), the speed regulating device (7) comprising:

the chute blocks (71), the chute blocks (71) are symmetrically arranged on the hydraulic cylinder (52);

a support rotating shaft (72), the support rotating shaft (72) is slidably arranged between the two chute blocks (71);

the grooved rolling block (73), the grooved rolling block (73) is installed on the supporting rotating shaft (72).

5. A cardiovascular surgical stent mounting fixture patient chair according to claim 4, further comprising a self-locking device (8), the self-locking device (8) comprising:

the annular grooving fixing block (81), the annular grooving fixing block (81) is arranged on the square plate (33);

a circular slotted block (82), the circular slotted block (82) being mounted on the first shaft (32);

the number of the top blocks (84) is four, and the top blocks (84) are arranged on the round slotting block (82) at intervals in a sliding manner;

and the fifth spring (83), the fifth spring (83) is installed on the top block (84) and the round grooved block (82).

6. A cardiovascular stent mounting fixture patient chair as claimed in claim 5, wherein the pad (34) is rubber.