CN206183290U - A head holds in palm for PETCT scanning bed - Google Patents

Abstract

The utility model relates to a head holds in palm for PETCT scanning bed, the head including the support including locating on the scanning bed holds in the palm, holder board that the support includes the locating plate is connected with scanning bed through locking device, set up with the locating plate angularity up and locate 2 trailing arm boards that holder board both sides just set up with holder board angularity up, holder board and the outside cladding of trailing arm board are equipped with integrated into one piece's headrest. The utility model discloses first support and scanning bed's relative position has been injectd, the influence of patient's head unusual fluctuation has been reduced, the qualities of the scanning of image are improved, the body appearance requirement the when patient carries out PETCT scanning has been satisfied, the contained angle of listening eyebrow line (EML) and scanning bed's horizontal plane that makes the patient is at 90 5 within ranges, so that scan imagery obtains more clear brain organizational structure, especially, fourth ventricle subtentorial, supratentorial the demonstration of basement festival good, both arms to the patient have carried out effective support simultaneously, the comfort level is increased.

Description

A kind of head rest scanning bed for PET/CT

Technical field

The utility model belongs to the instrument for radiodiagnosis, the technology neck of the instrument being such as combined with radiotherapy equipment Domain, it is more particularly to a kind of patients head to be carried out stablizing support and fixation in medical imaging process, makes patient's to listen open wiring （EML）The head rest scanning bed for PET/CT with the angle of sick bed horizontal plane in the range of 90 ° ± 5 °.

Background technology

PET/CT（Positron Emission Computed Tomography）It is a kind of nuclear medical imaging device, it applies Position Technique With human body Molecular information, the functional metabolism situation of diseased region and the location information of precise anatomical structure can be simultaneously obtained, it is right The diagnosis and treatment of tumour, heart, brain diseases are instructed to play an important roll.

When being scanned to patient using PET/CT, it is necessary to patient lies supine lifts both arms and be placed in diagnostic couch/scanning bed Head both sides are until the end of scan, while being to obtain preferable brain scans scope and clearly brain tissue's structure, generally adopts Open wiring is listened with the midpoint of human body eyebrow upper limb and the line of porus acusticus externus（EML）As timebase, to listen open wiring as timebase When this line need to be made to be basically perpendicular to the horizontal plane of diagnostic couch/scanning bed.Because the PET/CT scanning processes of the overwhelming majority need to continue 10~30 minutes, if head, neck, both arms lack support and support, patient was difficult to keep this posture up to the end of scan, and Patient is susceptible to movement because of discomfort in scanning process, and so as to cause scan image to produce artifact, the normal of influence doctor is examined It is disconnected.Accordingly, it would be desirable to made using head rest patient keep scanning required by posture, while reduce patient in scanning process not Suitable sense.

Utility model content

The technical problem that the utility model is solved is that in the prior art, the PET/CT scanning processes of the overwhelming majority need to continue 10~30 minutes, head, neck, both arms lacked strong support and support, caused by patient be difficult keep this posture until The end of scan, and patient is susceptible to movement because of discomfort in scanning process, it is impossible to and guarantee is when listening open wiring as timebase This line is basically perpendicular to the horizontal plane of diagnostic couch/scanning bed so as to cause scan image to produce artifact, and the normal of influence doctor is examined Disconnected problem, and then there is provided a kind of head rest scanning bed for PET/CT for optimizing structure.

The technical scheme that the utility model is used is, a kind of head rest scanning bed for PET/CT, including located at scanning Head rest body on bed, the head rest includes support, the support include with the scanning bed location-plate being connected by locker, With the angled prop head plate for setting upward of location-plate and located at prop head plate both sides and 2 supports for setting upward angled with prop head plate Arm plate；The prop head plate and trailing arm plate outside cladding are provided with integrally formed headrest.

Preferably, the headrest is included for supporting the first surface of patient's incidence and for supporting patient's arm part Second curved surface, the first surface is located at the trailing arm located at the upper surface of the middle and lower part of the prop head plate, second curved surface The upper surface of plate, the upper surface on the top of the prop head plate is provided with transition plane, and the first surface, transition plane and second are bent Face connects two-by-two.

Preferably, the first surface is the curved surface fitted with the physiological curve of the human body head back side of head and neck.

Preferably, second curved surface includes forearm supporting surface and upper arm supporting surface, the forearm supporting surface and upper arm branch Connected by arcwall face between support face.

Preferably, the angle of the forearm supporting surface and transition plane is 145 °~165 °, the upper arm supporting surface and the The intersection and forearm supporting surface of one curved surface and the intersection of transition plane on the same line, upper arm supporting surface and head rest outer peripheral face The straight line that intersection top is one and transition plane angle is 5 °~15 °, bottom is that Radius are the circular arc of 80mm~220mm.

Preferably, the angle between the location-plate and prop head plate is 130 °~160 °.

Preferably, the angle between the prop head plate and trailing arm plate is 110 °~145 °.

Preferably, the angle between the transition plane and prop head plate is 10 ° ~ 40 °.

Preferably, the location-plate is provided with stepped hole；The locker includes being equipped with the stepped hole Step Shaft, is arranged with the male flange being equipped with the stepped hole, the platform of the male flange bottom on the Step Shaft Open circles column piece is also arranged with rank axle, the male flange bottom cooperation is provided with shouldered pin, is provided with the shouldered pin The equal diameters of elastic component, the open circles column piece and elastic component.

Preferably, the scanning bed inner side is provided with slot, and the slot is provided with planing surface and lock groove from the outside to the core, described The level height of the bottom land of lock groove is less than the level height of the planing surface, and the lock groove sets with locker cooperation Put.

The utility model provides a kind of head rest scanning bed for PET/CT for optimizing structure, is divided into by by head rest Support and headrest two parts, support ensure that the overall structure of head rest, and headrest ensure that patient more can comfortably and accurately lie On suitable position, support including setting upward with the scanning bed location-plate being connected by locker and location-plate are angled The prop head plate put and located at prop head plate both sides and with the angled 2 trailing arm plates for setting upward of prop head plate, location-plate is used for head Support is fixedly installed on scanning bed, defines head rest and scanning bed relative position, reduces the influence of patients head's unusual fluctuation, is carried The quality of scanning of image high, prop head plate and trailing arm plate are respectively used to support the head and arm of patient, at the same in prop head plate and Trailing arm plate outside cladding is provided with integrally formed headrest, and the body appearance that meeting patient is carried out when PET/CT is scanned is required, makes patient Listen open wiring（EML）With the angle of scanning bed horizontal plane in the range of 90 ° ± 5 °, so that scan image obtains apparent brain The display of Basal ganglia is good in portion's institutional framework, especially Mu Xia fourth ventricles, curtain, while having been carried out effectively to the both arms of patient Support, increased comfort level.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Body appearance side views of the Fig. 2 for needed for when PET/CT is scanned；

Fig. 3 is the body appearance schematic diagram of patient of the utility model in application process；

Fig. 4 is the body appearance side view of patient of the utility model in application process；

Fig. 5 is the structural representation of the utility model medium-height trestle；

Fig. 6 is the perspective structure schematic diagram of head rest in the utility model；

Fig. 7 is the structural representation of the longitudinal section of first surface in the utility model；

Fig. 8 is the structural representation of locker in the utility model；

Fig. 9 is the explosive view of locker in the utility model；

Figure 10 be head rest of the present utility model in a pre-installation with the broken section figure structure schematic representation of scanning bed cooperation；

Figure 11 be head rest of the present utility model in installation with the broken section figure structure schematic representation of scanning bed cooperation.

Specific embodiment

The utility model is described in further detail with reference to embodiment, but protection domain of the present utility model is simultaneously Not limited to this.

As in Figure 2-4, Fig. 2 is to carry out body appearance requirement when PET/CT is scanned, and dotted line therein is to listen open wiring （EML）, Fig. 3 and 4 is for the side view of patient's body appearance when the embodiment provided using the utility model carries out PET/CT scannings and shows It is intended to.

As illustrated, the utility model is related to a kind of head rest scanning bed for PET/CT, including on scanning bed 1 The body of head rest 2, the head rest 2 includes support 3, and the support 3 includes the location-plate being connected by locker 4 with scanning bed 1 5 and the angled prop head plate 6 for setting upward of location-plate 5 and angled with prop head plate 6 set located at the both sides of prop head plate 6 and upward 2 trailing arm plates 7；The prop head plate 6 and the outside of trailing arm plate 7 cladding are provided with integrally formed headrest 8.

In the utility model, head rest 2 is divided into 8 two parts of support 3 and headrest, and support 3 ensure that the overall knot of head rest 2 Structure, headrest 8 ensure that patient more comfortably and accurately can be lain on suitable position.

In the utility model, there is provided the embodiment that a kind of support 3 and headrest 8 coordinate, i.e. support 3 uses carbon fibre material, To provide enough support strengths, the headrest 8 for obtaining integrated molding using PU foam process outside carbon fiber support is simultaneously Carbon fiber support 3 is coated on inside headrest 8 securely.

In the utility model, support 3 includes 5 one-tenth of location-plate 5 and location-plate being connected by locker 4 with scanning bed 1 Prop head plate 6 and the 2 trailing arm plates 7 for setting upward are at an angle of located at the both sides of prop head plate 6 and with prop head plate 6 that angle is set upward, Location-plate 5 is used to for head rest 2 to be fixedly installed on scanning bed 1, defines head rest 2 and scanning bed 1 relative position, reduces trouble The influence of person's head unusual fluctuation, improves the quality of scanning of image, and prop head plate 6 and trailing arm plate 7 are respectively used to support the head of patient And arm, while setting integrally formed headrest 8 in prop head plate 6 and the outside of trailing arm plate 7 cladding, meet the same of patient comfort When define the position of patient, when scanning is received, the head of patient and the position of arm are stablized relatively, it is ensured that listen open wiring （EML）With the angle of scanning bed 1 horizontal plane in the range of 90 ° ± 5 °.

The utility model meet patient carry out PET/CT scan when body appearance requirement, make patient's to listen open wiring（EML）With The angle of scanning bed 1 horizontal plane is in the range of 90 ° ± 5 °, so that scan image obtains apparent brain tissue's structure, especially The display of Basal ganglia is good in its Shi Muxia fourth ventricle, curtain, while having carried out effective support to the both arms of patient, increased easypro Appropriateness.

8 upper surfaces of the headrest are included for supporting the first surface 9 of patient's incidence and for supporting patient's arm part The second curved surface 10, located at the upper surface of the middle and lower part of the prop head plate 6, second curved surface 10 is located at the first surface 9 The upper surface of the trailing arm plate 7, the upper surface on the top of the prop head plate 6 is provided with transition plane 11, the first surface 9, mistake The curved surface 10 of plane 11 and second is crossed to connect two-by-two.

The first surface 9 is the curved surface fitted with the physiological curve of the human body head back side of head and neck.

Second curved surface 10 includes forearm supporting surface 12 and upper arm supporting surface 13, the forearm supporting surface 12 and upper arm branch Connected by arcwall face 14 between support face 13.

In the utility model, headrest 8 is included for supporting the first surface 9 of patient's incidence and for supporting patient's arm Second curved surface 10 in portion, first surface 9 is arranged at the upper surface of the middle and lower part of prop head plate 6, and the second curved surface 10 is arranged on trailing arm The upper surface of plate 7, this is consistent with the construction of human body, it is ensured that patient can be rested on headrest 8, by first surface 9 and people The cooperation that the physiological curve of the body back side of head and neck fits, it is ensured that the head steady of patient, reduces movement, while by the Two curved surface 10 ensures that the arm of patient is lifted over the top of the head in a certain position and keeps as motionless as possible as far as possible, finally ensures patient Open wiring of listening can be perpendicular to scanning bed 1 horizontal plane.

In the utility model, the section at the minimum point of first surface 9 is parallel with the prop head plate 6 of support 3, and this depends on patient In rest the head on 8 when, neck line is fixed with the angle of scanning bed 1 horizontal plane, so as to ensure that the open wiring of listening of patient can be perpendicular to sweeping Retouch the horizontal plane of bed 1.

In the utility model, human body when first surface 9 is 90% according to ergonomics 3D databases, sample percentiles The head and cervical curve form fit of 3D models.

In the utility model, specifically, the contour line of first surface 9 is by the first circular arc 9-1, the second circular arc 9-2 and One straight line 9-3 is constituted, wherein, contour line means the Central Symmetry face intersection of first surface 9 and headrest 8, and contour line is taken up an official post one by one The normal plane at point place and the intersection of first surface 9 are Radius are 95 °~115 °, center subtended angle is 135 °~160 ° circular arc； The radius of the first circular arc 9-1 is 80mm~110mm, and the upper end of the first circular arc 9-1 connects with transition plane 11, the first circular arc 9- 1 bottom is tangent with the second circular arc 9-2, and the center subtended angle of the first circular arc 9-1 is 50 °~70 °；The radius of the second circular arc 9-2 It is 190mm~250mm, the upper end of the second circular arc 9-2 is tangent with the first circular arc 9-1, the bottom and first of the second circular arc 9-2 Straight line 9-3 connects, and the center subtended angle of the second circular arc 9-2 is 30 °~40 °；The upper end of first straight line 9-3 and the second circular arc 9-2 Connecting, the bottom of first straight line 9-3 connects with head rest outer peripheral face 15, the angle of first straight line 9-3 and prop head plate 6 is 3 °~ 6°.In the present embodiment, head rest outer peripheral face 15 refers to the side surface of the headrest 8 of head rest 2.

In the utility model, one embodiment is especially provided, wherein, the contour line of first surface 9-1 is taken up an official post one one points The normal plane at place and the intersection of first surface 9-1 are the circular arc that Radius are 105 °, center subtended angle is 147 °, the first circular arc 9-1 Radius be 95mm, center subtended angle be 61 °, the radius of the second circular arc 9-2 is 223mm, center subtended angle is 35 °, first straight line 9- 3 is 4 ° with the angle of prop head plate 6.

In the utility model, the second curved surface 10 includes forearm supporting surface 12 and upper arm supporting surface 13, wherein forearm supporting surface 12 are used to support the forearm between elbow and palm, and upper arm supporting surface 13 is for supporting the upper arm between elbow and shoulder, forearm support Face 12 and upper arm supporting surface 13 are directly connected by the transition of arcwall face 14, and this is affixed beneficial to the ancon joint with human body natural's bending Close.

In the utility model, while being additionally provided with transition plane 11, first surface on the prop head plate 6 of the top of first surface 9 9th, the curved surface 10 of transition plane 11 and second is connected two-by-two, i.e., headrest 8 is integrally formed, it is ensured that its manufacture craft and support effect.

The forearm supporting surface 12 is 145 °~165 ° with the angle of transition plane 11, the upper arm supporting surface 13 and first The intersection and forearm supporting surface 12 of curved surface 9 and the intersection of transition plane 11 on the same line, outside upper arm supporting surface 13 and head rest It one is 5 °~15 ° of straight line 16 with the angle of transition plane 11 that the intersection top of side face 15 is, bottom be Radius be 80mm~ The circular arc 17 of 220mm.

Angle between the location-plate 5 and prop head plate 6 is 130 °~160 °.

Angle between the prop head plate 6 and trailing arm plate 7 is 110 °~145 °

Angle between the transition plane 11 and prop head plate 6 is 10 ° ~ 40 °.

In the utility model, the angle between location-plate 5 and prop head plate 6 is typically set to 150 °, prop head plate 6 and trailing arm plate 7 Between angle be typically set to 135 °.

In the utility model, forearm supporting surface 12 is typically set to 155 ° with the angle of transition plane 11, while upper arm is supported The intersection and forearm supporting surface 12 of face 13 and first surface 9 with the intersection of transition plane 11 on the same line, upper arm supporting surface The straight line 16 that 13 is one with the intersection top of head rest outer peripheral face 15 and the angle of transition plane 11 is 5 °~15 °, bottom is Radius It is the circular arc 17 of 80mm~220mm, this structure meets the form of the forearm and upper arm of human body after lift is lifted over the top of the head, beneficial to forearm Supporting surface 12, arcwall face 14 and upper arm supporting surface 13 fit with the forearm of human body, the ancon joint of natural torsion and upper arm.

In the utility model, the angle between transition plane 11 and prop head plate 6 is typically set to 18 ° ~ 25 °.

The location-plate 5 is provided with stepped hole 18；The locker 4 includes the platform being equipped with the stepped hole 18 Rank axle 19, is arranged with the male flange 20 being equipped with the stepped hole 18, the male flange 20 on the Step Shaft 19 Open circles column piece 21 is also arranged with the Step Shaft 19 of bottom, the cooperation of the bottom of the male flange 20 is provided with shouldered pin 22, institute State the equal diameters that elastic component 23, the open circles column piece 21 and elastic component 23 are provided with shouldered pin 22.

In the utility model, specifically, axle cap 19-1, first that Step Shaft 19 is gradually reduced including diameter from top to bottom Cylinder 19-2, the second cylinder 19-3 and axis body 19-4, stepped hole 18 include the first circle that aperture gradually increases from top to bottom Post holes 18-1 and the second cylindrical hole 18-2.Wherein, axle cap 19-1 with diameter greater than the first cylindrical hole 18-1, it is ensured that locker 4 Support 3 and scanning bed 1 can be completely fixed；The diameter of the first cylinder 19-2 is equal to or slightly less than the first cylindrical hole 18-1 to enter one Step center rest 3 avoids it from rocking；The diameter of the flange 20-1 of male flange 20 is equal to or slightly less than the second cylindrical hole 18-2, protects Demonstrate,proving the two parts connected using male flange 20 can be stably connected with；The diameter of the second cylinder 19-3 is equal to or slightly less than flange method The diameter of blue 20 step through-hole 20-2, axis body 19-4 be equal to or smaller open circles column piece 21 through hole, it is ensured that it is Step Shaft 19, convex Connection between lot or luck by which people are brought together blue 20 and open circles column piece 21；The diameter of the convex shoulder of shouldered pin 22 is equal to or slightly less than male flange 20 Stepped hole 20-3, it is ensured that the convex shoulder of shouldered pin 22 can be stably connected with male flange 20；The overall diameter of elastic component 23 be equal to or Be slightly less than the endoporus of shouldered pin 22, and diameter and the elastic component 23 of open circles column piece 21 equal diameters, it is ensured that hollow cylinder Part 21 can apply pressure to elastic component 23, bring it about certain deformation, complete the lock operation of head rest 2.

In the utility model, elastic component 23 is placed in the endoporus of shouldered pin 22, and open circles column piece 21 is set in Step Shaft 19 outsides, when open circles column piece 21 insert in shouldered pin 22 together with Step Shaft 19, open circles column piece 21 is understood with Step Shaft 19 are pressed on elastic component 23, can play a part of the lengthwise position regulation of locker 4.

In the utility model, after the convex shoulder of shouldered pin 22 is pressed into the stepped hole 20-3 of male flange 20, shouldered pin 22 can be fixedly connected with male flange 20, and when elastic component 23 compresses or upholds, shouldered pin 22 can be with male flange 20 1 Rise and axially slidably reciprocated along the axis body 19-4 of Step Shaft 19 and the outer peripheral face of open circles column piece 21.

In the utility model, when compression elastic piece 23, the flange 20-1 portions of male flange 20 can fall into the second of support 3 In cylindrical hole 18-2.

In the utility model, Step Shaft 19 should first be loaded the stepped hole 18 of carbon fiber support 3 when locker 4 is installed In, secondly male flange 20 is put the second cylinder 19-3 of Step Shaft 19, open circles column piece 21 is loaded into Step Shaft 19 Axis body 19-4, then elastic component 23 is fitted into the endoporus of shouldered pin 22, the convex shoulder end of shouldered pin 22 is smeared using retaining rubber The stepped hole 20-3 inner sides of face and male flange 20, finally load in the stepped hole 20-3 of male flange 20 shouldered pin 22, After the installation that locker 4 is completed after glue curing.

Scanning bed 1 inner side is provided with slot, and the slot is provided with planing surface 24 and lock groove 25, the lock from the outside to the core Only the level height of the bottom land of groove 25 is less than the level height of the planing surface 24, and the lock groove 2 is matched somebody with somebody with the locker 4 Close and set.

In the utility model, to coordinate the use of the locker 4 of head rest 2, single order can be opened up in scanning bed 1 end Scalariform is unilateral to run through slot, when head rest 2 is installed, first by the slot of the end face interleave scan bed 1 of the support 3 of head rest 2, to lock Device 4 applies an axial force F, compresses the elastic component 23 in locker 4, the upward sliding of male flange 20 of locker 4, Its flange 20-1 portions are just fallen into the stepped hole 20-3 of the support 3 of head rest 2, then proceed to, to mobile support 3 in slot, work as lock When the end face of flange of the male flange 20 of device 4 is in contact with the flange planing surface 24 in slot, axial force F is removed, continued to slotting The support 3 of mobile head rest 2 in groove, when locker 4 is moved to 25 surface of lock groove in slot, in locker 4 Elastic component 23 is upheld, and the flange section of male flange 20 falls into lock groove 25 under spring force, completes the lock of head rest 2 Only.

The utility model is solved in the prior art, and the PET/CT scanning processes of the overwhelming majority need to continue 10~30 minutes, Head, neck, both arms lack strong support and support, caused by patient be difficult to keep this posture until the end of scan, and And patient is susceptible to movement because of discomfort in scanning process, it is impossible to guarantee when listening open wiring as timebase this line it is substantially vertical In the horizontal plane of diagnostic couch/scanning bed 1 so as to cause scan image to produce artifact, the problem of the Normal Diagnosis of doctor is influenceed, led to Cross and head rest 2 is divided into 8 two parts of support 3 and headrest, support 3 ensure that the overall structure of head rest 2, and headrest 8 ensure that patient More comfortably and accurately can lie on suitable position, support 3 includes the positioning being connected by locker 4 with scanning bed 1 The angled prop head plate 6 for setting upward of plate 5 and location-plate 5 and angled with prop head plate 6 set located at the both sides of prop head plate 6 and upward The 2 trailing arm plates 7 put, location-plate 5 is used to for head rest 2 to be fixedly installed on scanning bed 1, defines head rest 2 and scanning bed 1 phase To position, the influence of patients head's unusual fluctuation is reduced, improve the quality of scanning of image, prop head plate 6 and trailing arm plate 7 are respectively used to The head and arm of patient are supported, while being provided with integrally formed headrest 8 in prop head plate 6 and the outside of trailing arm plate 7 cladding, is met Patient carries out body appearance requirement when PET/CT is scanned, and makes patient's to listen open wiring（EML）Angle with scanning bed 1 horizontal plane exists In the range of 90 ° ± 5 °, so that base in the apparent brain tissue's structure of scan image acquisition, especially Mu Xia fourth ventricles, curtain The display of coxopodite is good, while having carried out effective support to the both arms of patient, increased comfort level.

Claims (10)

1. a kind of head rest scanning bed for PET/CT, including the head rest body on scanning bed, it is characterised in that：The head Support includes support, and the support including setting upward with the scanning bed location-plate being connected by locker and location-plate are angled The prop head plate put and located at prop head plate both sides and with the angled 2 trailing arm plates for setting upward of prop head plate；The prop head plate and support Arm plate outside cladding is provided with integrally formed headrest.

2. a kind of head rest scanning bed for PET/CT according to claim 1, it is characterised in that：The headrest includes using The second curved surface in the first surface of support patient's incidence and for supporting patient's arm part, the first surface is located at described The upper surface of the middle and lower part of prop head plate, second curved surface is located at the upper surface of the trailing arm plate, the top of the prop head plate Upper surface is provided with transition plane, and the first surface, transition plane and the second curved surface are connected two-by-two.

3. a kind of head rest scanning bed for PET/CT according to claim 2, it is characterised in that：The first surface is The curved surface fitted with the physiological curve of the human body head back side of head and neck.

4. a kind of head rest scanning bed for PET/CT according to claim 2, it is characterised in that：The second curved surface bag Forearm supporting surface and upper arm supporting surface are included, is connected by arcwall face between the forearm supporting surface and upper arm supporting surface.

5. a kind of head rest scanning bed for PET/CT according to claim 4, it is characterised in that：The forearm supporting surface It is 145 °~165 ° with the angle of transition plane, the intersection and forearm supporting surface and transition of the upper arm supporting surface and first surface On the same line, upper arm supporting surface is one with the intersection top of head rest outer peripheral face and transition plane angle is 5 ° for the intersection of plane ~15 ° of straight line, bottom is that Radius are the circular arc of 80mm~220mm.

6. a kind of head rest scanning bed for PET/CT according to claim 1, it is characterised in that：The location-plate and support Angle between head plate is 130 °~160 °.

7. a kind of head rest scanning bed for PET/CT according to claim 1, it is characterised in that：The prop head plate and support Angle between arm plate is 110 °~145 °.

8. a kind of head rest scanning bed for PET/CT according to claim 2, it is characterised in that：The transition plane with Angle between prop head plate is 10 ° ~ 40 °.

9. a kind of head rest scanning bed for PET/CT according to claim 1, it is characterised in that：Set on the location-plate There is stepped hole；The locker includes the Step Shaft being equipped with the stepped hole, is arranged with the Step Shaft and institute The male flange that stepped hole is equipped with is stated, open circles column piece is also arranged with the Step Shaft of the male flange bottom, it is described The cooperation of male flange bottom is provided with shouldered pin, and elastic component, the open circles column piece and elastic component are provided with the shouldered pin Equal diameters.

10. a kind of head rest scanning bed for PET/CT according to claim 1, it is characterised in that：It is described scanning bed interior Side is provided with slot, and the slot is provided with planing surface and lock groove from the outside to the core, and the level height of the bottom land of the lock groove is less than The level height of the planing surface, the lock groove is equipped with the locker.