CN217548055U

CN217548055U - Auxiliary fixing device for cerebral angiography

Info

Publication number: CN217548055U
Application number: CN202221210157.3U
Authority: CN
Inventors: 莫金华
Original assignee: Hunan Provincial Peoples Hospital
Current assignee: Hunan Provincial Peoples Hospital
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-11
Anticipated expiration: 2032-05-18

Abstract

The utility model provides an auxiliary fixing device for cerebral angiography, which comprises a head fixing frame and an arm fixing frame; the head fixing frame and the arm fixing frame of the auxiliary fixing device for the cerebral angiography are detachably connected and installed on the bed plate of the cerebral angiography bed through the connecting and fixing component on the premise of not changing the existing structure of the bed plate of the existing cerebral angiography bed, and the universality is high; the head is fixed in the head accommodating groove on the headrest through the forehead fixing belt and the lower jaw fixing belt, so that the operation is simple and the use is convenient; the arm supporting plate of the arm fixing frame is provided with a plurality of arm restraining fixing bands which can restrain and brake the arms, and the wrist parts can be lifted by the cushion blocks, so that the radial artery is fully exposed, and the radial artery angiography is convenient; meanwhile, the second connecting and fixing component and the arm fixing component penetrate through the mounting hole through the threaded mounting shaft and are fixed in position by using the locking knob, so that the outward extending angle of the arm fixing component can be conveniently adjusted, and the operation of a doctor is facilitated.

Description

Auxiliary fixing device for cerebral angiography

The technical field is as follows:

the utility model relates to the technical field of medical auxiliary equipment, concretely relates to supplementary fixing device of brain angiography.

The background art comprises the following steps:

cerebrovascular angiography is a new X-ray examination technology widely applied to clinic in the past 90 years, and is a developing technology which is used for injecting an iodine-containing contrast agent into common carotid artery, internal and external carotid arteries and vertebral arteries and displaying the shapes, the positions, the distribution and the path of the internal cerebral artery, the backflow vein and the venous sinus at different periods through continuous cerebrovascular angiography; cerebrovascular angiography is currently commonly performed using femoral or radial artery intubation.

When a patient carries out cerebrovascular angiography, the patient is usually required to lie on a bed board of a cerebrovascular angiography bed (refer to fig. 10, the bed board comprises a head supporting area and a body supporting area), then the patient is required to keep head braking so as to prevent the blurring of images caused by head shaking and influence the definition of the images, so that a doctor can carry out misdiagnosis, and the existing cerebrovascular angiography bed is not provided with a head fixing part and completely depends on the compliance of the patient; meanwhile, two sides of the bed plate of the cerebral angiography bed are not provided with supporting parts capable of supporting the arms of the patient, and the arms of the patient frequently slide off in the operation process to be suspended; especially when carrying out through radial artery cerebrovascular radiography, need fix a position and brake the patient's arm to make things convenient for doctor's operation, current cerebrovascular radiography bed does not also be equipped with arm fixed part, has increased doctor's the operation degree of difficulty.

The invention content is as follows:

the utility model aims at solving the problem mentioned in the above-mentioned background art, provide a supplementary fixing device of brain blood vessel radiography, this supplementary fixing device includes that demountable installation can fix a position and brake the head mount of patient's head and fix a position and the arm mount of braking patient's arm on the bed board of brain blood vessel radiography bed.

The utility model adopts the following technical scheme to realize the purpose of the invention: an auxiliary fixing device for cerebral angiography comprises a head fixing frame; the head fixing frame comprises a headrest, a first connecting and fixing component, a forehead fixing band and a chin fixing band, the headrest is fixedly arranged at the top of the first connecting and fixing component, a head accommodating groove for the head of a patient to place is formed in the middle of the rear side of the headrest, and fixing band connecting holes for connecting the forehead fixing band and two ends of the chin fixing band are formed in the upper parts of the left side and the right side of the headrest respectively; the first connecting and fixing component is used for detachably and fixedly mounting the head fixing frame on the head supporting area of the bed plate of the cerebral angiography bed.

Furthermore, the whole first connecting and fixing component is a square mounting rack and comprises an inserting groove, a first positioning block, a first threaded rotating shaft and a first rotating handle; the splicing groove horizontally penetrates through the front side and the rear side of the square mounting rack, a threaded hole is vertically formed in the bottom plate of the square mounting rack at the bottom of the splicing groove, the first threaded rotating shaft is screwed on the threaded hole, and the top end of the first threaded rotating shaft extends into the splicing groove; and the first positioning block and the first rotating handle are respectively and fixedly arranged at the top end and the bottom end of the first threaded rotating shaft.

Furthermore, the forehead fixing belt comprises a forehead fixing support and first elastic connecting belts, the two first elastic connecting belts are respectively and fixedly connected to two ends of the forehead fixing support, and the other ends of the first elastic connecting belts penetrate through the fixing belt connecting holes; the forehead fixing support is an arc-shaped surface on the bottom surface contacted with the forehead of the patient.

Furthermore, the lower jaw fixing strap comprises a chin rest and two second elastic connecting straps, the two second elastic connecting straps are fixedly connected to two ends of the chin rest respectively, and the other ends of the second elastic connecting straps penetrate through the fixing strap connecting holes; the interior of the chin rest is hollow, and the bottom surface is open.

Furthermore, the auxiliary fixing device for the cerebral angiography also comprises an arm fixing frame; the arm fixing frame comprises a second connecting and fixing component and an arm fixing component connected to the second connecting and fixing component, and the arm fixing component comprises an arm supporting plate and a plurality of arm restraining and fixing bands arranged on the arm supporting plate; the second connecting and fixing component is used for detachably and fixedly mounting the arm fixing frame on the body supporting area of the bed plate of the cerebral angiography bed.

Furthermore, the second connecting and fixing component comprises a U-shaped fixing sleeve, an arm fixing component mounting plate, a second positioning block, a second threaded rotating shaft and a second rotating handle; the right side of the U-shaped fixing sleeve is provided with an opening, the arm fixing component mounting plate is vertically and fixedly mounted on a left side plate of the U-shaped fixing sleeve, a threaded hole is vertically formed in a bottom plate of the U-shaped fixing sleeve, the second threaded rotating shaft is screwed on the threaded hole, and the top end of the second threaded rotating shaft extends into the inner side of the U-shaped fixing sleeve; and the second positioning block and the second rotating handle are fixedly arranged at the top end and the bottom end of the second threaded rotating shaft respectively.

Further, the arm fixing component mounting plate is vertically provided with a mounting hole, the bottom of one end of the arm supporting plate is vertically and fixedly provided with a thread mounting shaft, a locking knob is screwed on the thread mounting shaft in a threaded manner, and the thread mounting shaft can penetrate through the mounting hole.

Further, arm restraint fixed band includes palm fixed band, forearm fixed band and big arm fixed band.

Preferably, a cushion block is arranged on the arm fixing component mounting plate between the palm fixing band and the forearm fixing band.

Preferably, the number of the arm fixing frames is two, and the two arm fixing frames are respectively detachably and fixedly arranged at the left side and the right side of the body supporting area of the bed plate of the cerebral angiography bed.

By adopting the technical scheme, the utility model better realizes the purpose of the invention, the head fixing frame and the arm fixing frame of the auxiliary fixing device for the cerebral angiography are detachably connected and installed on the bed plate of the cerebral angiography bed through the connecting and fixing component on the premise of not changing the existing structure of the bed plate of the existing cerebral angiography bed, and the universality is strong; the head is fixed in the head accommodating groove on the headrest through the forehead fixing belt and the chin fixing belt, so that the operation is simple and the use is convenient; the arm supporting plate of the arm fixing frame is provided with a plurality of arm restraining fixing belts which can restrain and brake arms, and the wrist part can be lifted by the cushion blocks, so that the radial artery is fully exposed, and the radial artery angiography is convenient; meanwhile, the second connecting and fixing component and the arm fixing component penetrate through the mounting hole through the threaded mounting shaft and are fixed in position by using the locking knob, so that the outward extending angle of the arm fixing component can be conveniently adjusted, and the operation of a doctor is facilitated.

Description of the drawings:

fig. 1 is a schematic view of the head mount 1 and the arm mount 2 mounted on the bed plate of the angiography bed of the present invention.

Fig. 2 is a schematic structural diagram of the head fixing frame 1 of the present invention.

Fig. 3 is a first schematic view of the connection position and structure of the middle headrest 11 and the first connecting and fixing assembly 12 of the present invention.

Fig. 4 is a schematic view of the connection position and structure of the middle headrest 11 and the first connecting and fixing component 12 according to the present invention.

Fig. 5 is a schematic structural view of the forehead fixing strap 13 of the present invention.

Fig. 6 is a schematic structural view of the middle and lower jaw securing strap 14 of the present invention.

Fig. 7 is a schematic structural view of the arm fixing frame 2 of the present invention.

Fig. 8 is a schematic sectional view of a second connecting and fixing member 21 according to the present invention.

Fig. 9 is a side view of the arm fixing assembly 22 according to the present invention.

Fig. 10 is a schematic structural view of the bed plate of the middle cerebral angiography bed of the utility model.

The reference numerals are illustrated in the following table.

Number of mark	Name of label	Number of mark	Name of label
				1	Head mount 1	21	Second connecting and fixing component 21
11	Headrest 11	211	U-shaped fixing sleeve 211
				111	Head receiving groove 111	212	Arm fixing assembly mounting plate 212
112	Fastening band attachment hole 112	2121	Mounting hole 2121
				12	First connecting and fixing component 12	213	Second positioning block 213
121	Insertion groove 121	214	Second threaded rotating shaft 214
				122	First positioning block 122	215	Second rotating handle 215
123	First threaded rotating shaft 123	22	Arm fixing component 22
				124	First rotating handle 124	221	Arm support plate 221
13	Forehead fixing strap 13	222	Threaded mounting shaft 222
				131	Forehead fixing support 131	223	Locking knob 223
132	First elastic connecting band 132	224	Palm fixing strap 224
				14	Jaw securing strap 14	225	Forearm fixing strap 225
141	Chin rest 141	226	Big arm fixing belt 226
				142	Second elastic forceConnecting band 142	227	Spacer block 227
2	Arm fixing frame 2

The specific implementation mode is as follows:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive labor, and the contents of the invention will be further described with reference to the drawings:

example 1:

referring to the attached figure 10, the bed board of the cerebral angiography bed comprises a head supporting area and a body supporting area, and the width of the head supporting area is smaller than that of the body supporting area.

Referring to the attached figures 1, 2, 3 and 4 of the specification, the auxiliary fixing device for the angiography of the brain comprises a head fixing frame 1; the head fixing frame 1 comprises a headrest 11, a first connecting and fixing component 12, a forehead fixing band 13 and a chin fixing band 14, the headrest 11 is fixedly installed at the top of the first connecting and fixing component 12, a head accommodating groove 111 for placing the head of a patient is formed in the middle of the rear side of the headrest 11, fixing band connecting holes 112 for connecting the forehead fixing band 13 and the two ends of the chin fixing band 14 are formed in the upper portions of the left side and the right side of the headrest 1 respectively, the whole headrest 11 is made of a hard material, and a layer of soft cushion is paved on the contact surface of the head accommodating groove 111 and the head of the patient, so that the comfort is improved; the first connecting and fixing component 12 is used for detachably and fixedly mounting the head fixing frame 1 on the head supporting area of the bed plate of the cerebral angiography bed.

In one embodiment, referring to fig. 2, 3 and 4, the first connecting and fixing component 12 is a square mounting frame as a whole, and includes a plug-in slot 121, a first positioning block 122, a first threaded rotating shaft 123 and a first rotating handle 124; the insertion groove 121 horizontally penetrates through the front side and the rear side of the square mounting frame, a head supporting area of the cerebral angiography bed plate penetrates through the insertion groove 121, a threaded hole is vertically formed in a bottom plate of the square mounting frame at the bottom of the insertion groove 121, the first threaded rotating shaft 123 is screwed on the threaded hole, and the top end of the first threaded rotating shaft 123 extends into the insertion groove 121; the first positioning block 122 and the first rotating handle 124 are respectively and fixedly installed at the top end and the bottom end of the first threaded rotating shaft 123; when the square mounting rack is sleeved outside the head supporting area of the cerebrovascular angiography bed plate through the insertion groove 121, the first rotating handle 124 is rotated to drive the first threaded rotating shaft 123 to rotate and push the first positioning block 122 to move upwards to abut against the bottom of the cerebrovascular angiography bed plate, so that the square mounting rack and the cerebrovascular angiography bed plate are fixed in position, and the head fixing rack 1 is also fixed in position relative to the cerebrovascular angiography bed plate.

In another embodiment, the first connecting and fixing component 12 is an elastic band, two ends of the elastic band are respectively connected to two sides of the bottom surface of the headrest 1, and the head fixing frame 1 is detachably hooped on the head supporting area of the bed plate of the angiography bed through the elastic force of the elastic band.

In one embodiment, referring to fig. 5, the forehead fixing strap 13 includes a forehead fixing support 131 and first elastic connecting straps 132, two of the first elastic connecting straps 132 are fixedly connected to two ends of the forehead fixing support 131, and the other end of the first elastic connecting strap 132 passes through the fixing strap connecting hole 112; the bottom surface of the forehead fixing support 131 contacting with the forehead of the patient is an arc-shaped surface, the arc-shaped surface can make the contact surface of the forehead fixing support 131 and the forehead of the patient larger, so that the fixing effect is better, and the forehead fixing support 131 is integrally made of soft elastic materials; the first elastic connecting band 132 passes through the connecting band connecting hole 112 and then is directly tied to fix the forehead fixing band 13; in another kind of embodiment, first elastic connecting band 132 is magic tape elastic connecting band, is provided with magic tape hair surface layer on first elastic connecting band 132 top surface, is provided with one section magic tape thorn surface layer on the top surface of first elastic connecting band 132 expansion end simultaneously first elastic connecting band 132 passes after fixed band connecting hole 112 directly turn over first elastic connecting band 132 expansion end and turn over the adhesion of rolling over first elastic connecting band 132 expansion end through magic tape thorn surface layer and magic tape hair surface layer and fix first elastic connecting band 132 expansion end on first elastic connecting band 132, realize forehead fixed band 13's fixed.

In one embodiment, referring to fig. 6, the chin fixing strap 14 includes a chin rest 141 and two second elastic connecting straps 142, the two second elastic connecting straps 142 are respectively fixedly connected to two ends of the chin rest 141, and the other end of the second elastic connecting strap 142 passes through the strap connecting hole 112; the chin rest 141 is hollow inside and open at the bottom, the chin rest 141 is similar to the chin rest on the fixing strap of a helmet, the whole chin rest 141 is made of a soft elastic material, and the chin of a patient is sleeved in the chin rest 141; the second elastic connecting band 142 passes through the fixing band connecting hole 112 and is directly tied to fix the chin fixing band 14; in another specific embodiment, the second elastic connection band 142 is a hook and loop fastener elastic connection band, a hook and loop fastener matte layer is disposed on the top surface of the second elastic connection band 142, and a hook and loop fastener burr layer is disposed on the top surface of the movable end of the second elastic connection band 142, so that the second elastic connection band 142 passes through the fixing band connection hole 112 and then the movable end of the second elastic connection band 142 is directly folded to fix the movable end of the second elastic connection band 142 on the second elastic connection band 142 through the adhesion between the hook and loop fastener matte layer and the movable end of the second elastic connection band 142, thereby fixing the chin fixing band 14.

Example 2:

in one embodiment, referring to fig. 1 and 7, the auxiliary cerebrovascular angiography fixing device further comprises an arm fixing frame 2; the arm fixing frame 2 comprises a second connecting and fixing component 21 and an arm fixing component 22 connected to the second connecting and fixing component 21, the arm fixing component 22 comprises an arm supporting plate 221 and a plurality of arm constraint fixing bands arranged on the arm supporting plate 221, and the arm constraint fixing bands can constrain and brake the arms of the patient on the arm supporting plate 221; the second connecting and fixing component 21 detachably and fixedly installs the arm fixing frame 2 on the body supporting area of the bed plate of the cerebral angiography bed; a layer of soft cushion is laid on the contact surface of the arm supporting plate 221 and the arm of the patient, so that the comfort is improved.

In one embodiment, referring to fig. 8, the second connecting and fixing element 21 includes a U-shaped fixing sleeve 211, an arm fixing element mounting plate 212, a second positioning block 213, a second threaded rotating shaft 214 and a second rotating handle 215; the right side of the U-shaped fixing sleeve 211 is provided with an opening, the arm fixing component mounting plate 212 is vertically and fixedly mounted on the left side plate of the U-shaped fixing sleeve 211, a threaded hole is vertically formed in the bottom plate of the U-shaped fixing sleeve 211, the second thread rotating shaft 214 is screwed on the threaded hole, and the top end of the second thread rotating shaft 214 extends into the inner side of the U-shaped fixing sleeve 211; the second positioning block 213 and the second rotating handle 215 are respectively and fixedly installed at the top end and the bottom end of the second threaded rotating shaft 214; after the U-shaped fixing sleeve 211 is sleeved outside the body supporting area of the cerebrovascular angiography bed plate through the right opening, the second rotating handle 215 is rotated to drive the second threaded rotating shaft 214 to rotate and push the second positioning block 213 to move upwards to abut against the bottom of the cerebrovascular angiography bed plate, so that the U-shaped fixing sleeve 211 and the cerebrovascular angiography bed plate are fixed, and the arm fixing frame 2 is fixed relative to the cerebrovascular angiography bed plate.

In one embodiment, referring to fig. 8 and 9, a mounting hole 2121 is vertically formed in the arm fixing assembly mounting plate 212, a threaded mounting shaft 222 is vertically and fixedly mounted at the bottom of one end of the arm supporting plate 221, a locking knob 223 is threadedly coupled to the threaded mounting shaft 222, and the threaded mounting shaft 222 can pass through the mounting hole 2121; the mounting hole 2121, the threaded mounting shaft 222 and the locking knob 223 can realize the detachable fixed connection of the second connecting and fixing component 21 and the arm fixing component 22, and simultaneously, the angle of the arm fixing component 22 relative to the second connecting and fixing component 21 can be adjusted to realize the adjustment of the abduction angle of the arm of the patient, so that a doctor can conveniently perform radial artery angiography operation; when the arm fixing assembly 22 is installed, the threaded mounting shaft 222 passes through the mounting hole 2121 and then the locking knob 223 is screwed on the threaded mounting shaft 222, so that when the locking knob 223 is in close contact with the bottom surface of the arm fixing assembly mounting plate 212, the relative position of the arm fixing assembly 22 is fixed; when the angle of the arm fixing assembly 22 needs to be adjusted, the locking knob 223 is loosened, the arm fixing assembly 22 is rotated to adjust the angle, and then the locking knob 223 is tightened to make the locking knob 223 closely contact with the bottom surface of the arm fixing assembly mounting plate 212, so that the relative position of the arm fixing assembly 22 is fixed again.

In one embodiment, referring to fig. 9, the arm constraint fixing straps include a palm fixing strap 224, a small arm fixing strap 225 and a large arm fixing strap 226, the palm fixing strap 224 can fix the palm on the arm supporting plate 221, the small arm fixing strap 225 can fix the small arm on the arm supporting plate 221, and the large arm fixing strap 226 can fix the large arm on the arm supporting plate 221; a cushion block 227 is arranged on the arm fixing component mounting plate 212 between the palm fixing band 224 and the forearm fixing band 225, the cushion block 227 can cushion the wrist of the patient, so that the radial artery is exposed, and the radial artery angiography operation by a doctor is convenient; the cushion block 227 can be a flexible cotton cushion or an air cushion, so that the comfort can be improved; referring to fig. 7, the palm fixing band 224, the forearm fixing band 225 and the forearm fixing band 226 may be two hook and loop fastener fixing bands, one ends of the two hook and loop fastener fixing bands are respectively and fixedly connected to both sides of the arm supporting plate 221, and the movable ends of the two hook and loop fastener fixing bands may be bonded to each other to achieve fixed connection.

In a preferred embodiment, referring to fig. 1, there are two arm holders 2, and the two arm holders 2 are respectively detachably and fixedly mounted on the left and right sides of the body supporting area of the bed plate of the cerebral angiography bed; can support both upper limbs of a patient, prevent the arm from sliding off to cause suspension, and particularly can position and brake the surgical limb.

The application method of the cerebral angiography auxiliary fixing device comprises the following steps: sleeving a head fixing frame 1 on a head supporting area through an inserting groove 121, fixing the head fixing frame 1 on the head supporting area by rotating a first rotating handle 124, sleeving an arm fixing frame 2 on a body supporting area through a U-shaped fixing sleeve 211, fixing the arm fixing frame 2 on the body supporting area by rotating a second rotating handle 215, assisting a patient to lie on a cerebral angiography bed plate, placing the head in a head accommodating groove 111, respectively penetrating first elastic connecting belts 132 on forehead fixing belts 13 through fixing belt connecting holes 112, adjusting the length of the first elastic connecting belts 132 to enable the forehead fixing supports 131 to be in close contact with the forehead of the patient, finally fastening and fixedly connecting the first elastic connecting belts 132 to the headrest 11, respectively penetrating second elastic connecting belts 142 on jaw fixing belts 14 through fixing belt connecting holes 112, adjusting the length of the second elastic connecting belts 142 to enable the chin supports 141 to sleeve the chin of the patient, and finally fastening and fixedly connecting the second elastic connecting belts 142 to the headrest 11 to fix the head position of the patient; the patient is assisted to place the upper limbs on the arm supporting plate 221 of the arm fixing frame 2 respectively, the wrist part is arranged on the cushion block 227, the palm of the arm, the forearm and the forearm are fixed with the forearm fixing band 226 through the palm fixing band 224 and the forearm fixing band 225 respectively, before the doctor performs radial cerebral angiography operation, the doctor can unscrew the locking knob 223, the locking knob 223 is screwed to adjust the abduction angle of the arm of the patient after the arm fixing component 22 is rotated to adjust the angle, the doctor adjusts the arm position convenient to operate, and the doctor can perform radial cerebral angiography operation.

It is clear that modifications and/or additions of parts may be made to the cerebrovascular angiography assisting fixation device and corresponding method as described heretofore, without departing from the field and scope of the present invention.

It is also clear that, although the present invention has been described in detail, a person of skill in the art shall certainly be able to achieve many other equivalent forms of cerebrovascular angiography auxiliary fixing device and corresponding methods, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

Claims

1. A cerebrovascular radiography auxiliary fixing device which is characterized in that: comprises a head fixing frame (1); the head fixing frame (1) comprises a headrest (11), a first connecting and fixing component (12), a forehead fixing band (13) and a lower jaw fixing band (14), the headrest (11) is fixedly installed at the top of the first connecting and fixing component (12), a head accommodating groove (111) for placing the head of a patient is formed in the middle of the rear side of the headrest (11), and fixing band connecting holes (112) for connecting the forehead fixing band (13) and the two ends of the lower jaw fixing band (14) are formed in the upper parts of the left side and the right side of the headrest (11) respectively; the head fixing frame (1) is detachably and fixedly arranged on a head supporting area of a cerebral angiography bed plate by the first connecting and fixing component (12).

2. The cerebrovascular angiography assisting fixture according to claim 1, wherein: the first connecting and fixing component (12) is integrally a square mounting frame and comprises an insertion groove (121), a first positioning block (122), a first threaded rotating shaft (123) and a first rotating handle (124); the plug groove (121) horizontally penetrates through the front side and the rear side of the square mounting rack, a threaded hole is vertically formed in the bottom plate of the square mounting rack at the bottom of the plug groove (121), the first threaded rotating shaft (123) is screwed on the threaded hole, and the top end of the first threaded rotating shaft (123) extends into the plug groove (121); the first positioning block (122) and the first rotating handle (124) are fixedly arranged at the top end and the bottom end of the first threaded rotating shaft (123) respectively.

3. The cerebrovascular angiography assisting fixture according to claim 1, wherein: the forehead fixing belt (13) comprises a forehead fixing support (131) and first elastic connecting belts (132), the two first elastic connecting belts (132) are respectively and fixedly connected to two ends of the forehead fixing support (131), and the other ends of the first elastic connecting belts (132) penetrate through the fixing belt connecting holes (112); the forehead fixing support (131) is an arc-shaped surface on the bottom surface contacted with the forehead of a patient.

4. The cerebrovascular angiography-assisted fixation device according to claim 1, wherein: the jaw fixing belt (14) comprises a chin rest (141) and second elastic connecting belts (142), the two second elastic connecting belts (142) are respectively and fixedly connected to two ends of the chin rest (141), and the other ends of the second elastic connecting belts (142) penetrate through the fixing belt connecting holes (112); the chin rest (141) is hollow inside and has an open bottom surface.

5. The cerebrovascular angiography assisting fixture according to claim 1, wherein: the auxiliary fixing device for the cerebral angiography also comprises an arm fixing frame (2); the arm fixing frame (2) comprises a second connecting and fixing component (21) and an arm fixing component (22) connected to the second connecting and fixing component (21), and the arm fixing component (22) comprises an arm supporting plate (221) and a plurality of arm restraining fixing belts arranged on the arm supporting plate (221); the second connecting and fixing component (21) detachably and fixedly installs the arm fixing frame (2) on the body supporting area of the bed plate of the cerebral angiography bed.

6. The cerebrovascular angiography assisting fixture device according to claim 5, wherein: the second connecting and fixing component (21) comprises a U-shaped fixing sleeve (211), an arm fixing component mounting plate (212), a second positioning block (213), a second threaded rotating shaft (214) and a second rotating handle (215); the right side of the U-shaped fixing sleeve (211) is provided with an opening, the arm fixing component mounting plate (212) is vertically and fixedly mounted on the left side plate of the U-shaped fixing sleeve (211), a threaded hole is vertically formed in the bottom plate of the U-shaped fixing sleeve (211), the second threaded rotating shaft (214) is screwed on the threaded hole, and the top end of the second threaded rotating shaft (214) extends into the inner side of the U-shaped fixing sleeve (211); the second positioning block (213) and the second rotating handle (215) are respectively and fixedly arranged at the top end and the bottom end of the second threaded rotating shaft (214).

7. The cerebrovascular angiography-assisted fixation device according to claim 6, wherein: the mounting hole (2121) has vertically been seted up on arm fixed subassembly mounting panel (212) the vertical fixed mounting in arm backup pad (221) one end bottom has screw thread installation axle (222) the screw thread has connect locking knob (223) soon on screw thread installation axle (222), screw thread installation axle (222) can pass mounting hole (2121).

8. The cerebrovascular angiography assisting fixture device according to claim 5, wherein: the arm constraint fixing band comprises a palm fixing band (224), a small arm fixing band (225) and a large arm fixing band (226).

9. The cerebrovascular angiography auxiliary fixing device according to claim 8, wherein: and a cushion block (227) is arranged on the arm fixing component mounting plate (212) between the palm fixing belt (224) and the forearm fixing belt (225).

10. The cerebrovascular angiography assisting fixture device according to claim 5, wherein: the number of the arm fixing frames (2) is two, and the two arm fixing frames (2) are respectively detachably and fixedly arranged at the left side and the right side of a body supporting area of a bed plate of the cerebral angiography bed.