CN112336367A - Head fixing device for cardio-cerebrovascular radiography - Google Patents

Abstract

The invention discloses a head fixing device for cardio-cerebrovascular angiography, which comprises a bed body, wherein a head supporting plate is arranged in the middle of one side of the top end surface of the bed body, side supporting rods are arranged on two sides of the head supporting plate, a vertically through sliding groove is formed in the other side of the head supporting plate, sliding supporting rods are inserted in the sliding groove in a sliding mode, side clamping plates are arranged at the top ends of opposite sides of two groups of the side supporting rods, electric push rods are arranged at the top ends of opposite sides, lifting mechanisms are connected between the bottom ends of the two groups of the side supporting rods and the bottom end of the head supporting plate in the bed body, and tooth grooves which are uniformly arranged at intervals are formed. This head fixing device for cardiovascular and cerebrovascular radiography makes the position keep unanimous between side splint and the head layer board when high comfortable the adjusting to the patient, need not to go up and down the back and adjusts the height of side splint once more to it is more convenient to make to adjust the back clamp tight, has improved the convenience of using.

Description

Head fixing device for cardio-cerebrovascular radiography

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a head fixing device for cardio-cerebrovascular angiography.

Background

Cardiovascular and cerebrovascular diseases are mostly caused in middle-aged and elderly people, have high morbidity, mortality and disability rate, and become the first killer threatening the health of human beings with the acceleration of social aging. The cardiovascular and cerebrovascular angiography examination is widely applied to clinical practice due to the technical characteristics of small wound, quick detection and relatively obvious result. In contrast examination, it is possible to determine whether a contrast blood vessel has lesion characteristics such as stenosis and plaque from a developed image of the blood vessel, and thus to determine the health level of a patient.

Be used for radiography head fixing device among the prior art, it is firm in order to guarantee the fixed of head, mostly begin to compress tightly from left right direction and top head, and adapt to the comfort level of patient and the patient adaptation that adapts to the difference, mostly can highly adjust the head, but adjust the back at the head at every turn, all need adjust the adaptation to the clamping mechanism of both sides again, it is comparatively troublesome, the hold-down mechanism who is located the top simultaneously, when the patient lies down and the patient rises, cause inconvenience.

Disclosure of Invention

The invention aims to provide a head fixing device for cardio-cerebrovascular angiography, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a head fixing device for cardio-cerebrovascular angiography comprises a bed body, wherein a head supporting plate is arranged in the middle of one side of the top end face of the bed body, side supporting rods are arranged on two sides of the head supporting plate, a vertically through sliding groove is formed in the other side of the head supporting plate, sliding supporting rods are inserted in the sliding groove in a sliding mode, side clamping plates are arranged at the top ends of the opposite side faces of the two groups of side supporting rods, electric push rods are arranged at the top ends of the opposite side faces, and the bottom ends of the two groups of side supporting rods and the bottom end of the head supporting plate are connected;

the lower end of one side face, facing the head supporting plate, of the sliding supporting rod is provided with tooth grooves which are uniformly arranged at intervals, the top end of the sliding supporting rod is provided with an ear seat, a connecting ejector rod is hinged and installed in the ear seat through a pin shaft, a meshing transmission mechanism for driving the sliding supporting rod to ascend and descend is installed on one side, located on the bottom end face of the bed body, of the sliding supporting rod, the connecting ejector rod is of an L-shaped structure, a top pressing plate is installed at one end, away from the sliding supporting rod, of the horizontal part of the connecting ejector rod through a supporting column, and a;

the fixed bonding of position department of a side top of slip branch back to head layer board adjacent ear seat has the side shield, the magnet piece is installed on the side shield top, and the side shield passes through the magnet piece and is connected ejector pin magnetism.

Preferably, electric putter is embedded to be fixed in the top of side branch, and electric putter's piston rod and the side middle department fixed connection of side splint, just side splint all are provided with the second gasbag pad towards one side of head layer board.

Preferably, the top end surface of the head supporting plate is in an arc-shaped arrangement, an arc-shaped head cushion is bonded in the arc-shaped groove, the bottom end surface of the top pressing plate is also in an arc-shaped arrangement, and a first air bag cushion is arranged in the arc-shaped groove.

Preferably, the lifting mechanism comprises a worm arranged in the bed body, a plurality of groups of worm wheels meshed with the worm, screw rods respectively arranged at the bottom ends of the side supporting rods and the head supporting plate and a first motor driving the worm to rotate, and the worm, the worm wheels, the first motor and the screw rods are all arranged in an inner cavity formed in the bed body.

Preferably, the output shaft of the first motor is fixedly connected with one end of the worm, the worm is horizontally arranged in the inner cavity, the other end of the worm is fixed on the side wall of the inner cavity through a shaft seat, the top ends of the screw rods are respectively inserted into the bottom ends of the side supporting rod and the head supporting plate in a threaded manner, the bottom ends of the screw rods are respectively inserted and fixed in the shaft seat in a rotating manner, and the worm gears are respectively and fixedly sleeved on the outer sides of the plurality of groups of screw.

Preferably, the meshing transmission mechanism comprises a support fixedly welded at the bottom end of the bed body and in a U shape, a transmission shaft installed in the bottom end of the support, a gear fixedly sleeved on the transmission shaft and a second motor installed outside the support, an output shaft of the second motor is fixedly connected with the transmission shaft, and one side face of the gear is meshed with a tooth groove of the sliding support rod.

Preferably, the bottom groove has been seted up between two parties to the top face of side shield, the bottom of magnet piece slides and sets up in the bottom groove to with the top fixed connection of the two sets of springs of bottom end face symmetry setting of bottom groove, the side groove of being connected with magnet piece adaptation and magnetism is seted up to vertical partial one side of connecting the ejector pin.

Preferably, the top end face of the sliding support rod is positioned in the ear seat and is provided with a slot, the top end face of one side of the horizontal part of the connecting ejector rod is provided with a through slot which vertically runs through the vertical part and vertically corresponds to the slot, the inserting plate is inserted in the through slot in a sliding manner, the top end of the inserting plate is provided with a handle, the bottom end of the inserting plate is inserted in the slot, and the two side faces of the inserting plate are fixed with limit blocks.

The invention has the technical effects and advantages that: the head fixing device for the cardio-cerebrovascular angiography is characterized in that the two sides of the head supporting plate of the bed body are provided with the side clamping plates driven by the electric push rods, and the top pressing plate driven by the sliding supporting rods is arranged above the head supporting plate, so that the two sides and the top end of the head can be pressed tightly, the fixation stability of the head is ensured, meanwhile, the side supporting rods and the head supporting plate can simultaneously adjust the heights of the side supporting plate and the head supporting plate through the lifting mechanism arranged in the bed body, when the height of a patient is comfortably adjusted, the positions of the side clamping plates and the head supporting plate are kept consistent, and the height of the side clamping plates is adjusted again after the lifting is not needed, so that the clamping is more convenient after the adjustment is finished, and; in addition, the top pressing plate is hinged to the sliding supporting rod through the connecting ejector rod, the connecting ejector rod is limited through the inserting plate and the sliding supporting rod, and the top pressing plate is adsorbed on the side baffle through the magnet block after being turned over, so that the connecting ejector rod and the top pressing plate are located on one side, back to the head base plate, of the sliding supporting rod under the initial state, the patient can conveniently lie and lean on the head when lying, interference caused by standing up of the patient after the placement of the head and the ending of the head can be avoided, and the use is more convenient and.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic structural diagram of the bed of the present invention;

FIG. 3 is a sectional view of the bed of the present invention;

FIG. 4 is a schematic view of the structure of the sliding support rod and the connecting rod of the present invention;

fig. 5 is a schematic structural view of the sliding support rod and the connecting ejector rod of the present invention in a disassembled state.

In the figure: 1. a bed body; 2. a head support plate; 3. a side strut; 4. side clamping plates; 5. a sliding support rod; 6. a tooth socket; 7. a gear; 8. a support; 9. connecting a top rod; 10. a pillar; 11. a top platen; 12. a first airbag cushion; 13. a side dam; 14. a magnet block; 15. a second airbag cushion; 16. a head pad; 17. a chute; 18. an electric push rod; 19. a first motor; 20. a worm; 21. a shaft seat; 22. a screw; 23. a worm gear; 24. inserting plates; 25. a pin shaft; 26. a bottom groove; 27. a spring; 28. a slot; 29. an ear mount; 30. a side groove; 31. a through groove; 32. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a head fixing device for cardio-cerebrovascular angiography as shown in figures 1-5, which comprises abed body 1, wherein ahead supporting plate 2 is arranged in the middle of one side of the top end surface of thebed body 1,side supporting rods 3 are arranged on two sides of thehead supporting plate 2, a vertically through slidingchute 17 is formed in the other side of thehead supporting plate 2, sliding supportingrods 5 are inserted in thesliding chute 17 in a sliding manner,side clamping plates 4 are arranged at the top ends of opposite side surfaces of the two groups ofside supporting rods 3,electric push rods 18 are arranged at the top ends of the opposite side surfaces, and the bottom ends of the two groups ofside supporting rods 3 and the bottom end of thehead supporting plate 2 are connected with;

the lower end of one side surface of the slidingsupport rod 5 facing thehead supporting plate 2 is provided withtooth grooves 6 which are uniformly arranged at intervals, the top end of thesliding support rod 5 is provided with anear seat 29, a connectingejector rod 9 is hinged and installed in theear seat 29 through apin shaft 25, one side of the bottom end surface of thebed body 1, which is positioned on thesliding support rod 5, is provided with a meshing transmission mechanism for driving thesliding support rod 5 to lift, the connectingejector rod 9 is of an L-shaped structure, one end, far away from thesliding support rod 5, of the horizontal part of the connectingejector rod 9 is provided with a toppressing plate 11 through a supportingcolumn 10, and the vertical part of the connecting;

the fixed bonding of position department of a side top ofslide support 5 back tohead layer board 2adjacent ear seat 29 hasside shield 13,magnet piece 14 is installed onside shield 13 top, andside shield 13 is connected withconnection ejector pin 9 magnetism throughmagnet piece 14.

Specifically,electric putter 18 is embedded to be fixed in the top ofside branch 3, and the piston rod ofelectric putter 18 and the side middle department fixed connection ofside splint 4, justside splint 4 all is provided withsecond gasbag pad 15 towards a side ofhead layer board 2.

Specifically, the top surface of thehead supporting plate 2 is arc-shaped, an arc-shapedhead cushion 16 is bonded in the arc-shaped groove, the bottom end surface of thetop pressing plate 11 is also arc-shaped, a firstair bag cushion 12 is arranged in the arc-shaped groove, corresponding pressure sensors (the model of which can be selected is PT124G-111) are arranged on one sides of the firstair bag cushion 12 and the secondair bag cushion 15 and used for measuring the pressure state of the firstair bag cushion 12 and the secondair bag cushion 15 when being compressed, so that whether the head is clamped or not is determined, and the head supporting plate can be clamped by a controller to stop working after clamping is realized, wherein the controller is not shown in the figure, and an STM32 series single chip microcomputer can be selected and installed at any position of the bottom end of the bed body 1 (installed at a corresponding position according to requirements).

Specifically, the lifting mechanism comprises aworm 20 arranged in thebed body 1, a plurality of groups ofworm wheels 23 meshed with theworm 20,screw rods 22 respectively arranged at the bottom ends of theside supporting rods 3 and thehead supporting plate 2, and afirst motor 19 driving theworm 20 to rotate, wherein theworm 20, theworm wheels 23, thefirst motor 19 and thescrew rods 22 are all arranged in an inner cavity formed in thebed body 1, and thefirst motor 19 is a servo motor.

Specifically, the output shaft of thefirst motor 19 is fixedly connected with one end of aworm 20, theworm 20 is horizontally arranged in the inner cavity, the other end of the worm is fixed on the side wall of the inner cavity through ashaft seat 21, the top end of ascrew rod 22 is respectively inserted into the bottom ends of aside supporting rod 3 and ahead supporting plate 2 in a threaded manner, the bottom end of thescrew rod 22 is respectively inserted and fixed in theshaft seat 21 in a rotating manner, aworm wheel 23 is respectively and fixedly sleeved on the outer sides of a plurality of groups ofscrew rods 22, and as shown in fig. 3, theside supporting rod 3 and thehead supporting plate 2 which are in threaded connection with the screw rod.

Specifically, meshing drive mechanism is including fixed welding at the support 8 thatbed body 1 bottom is the U type, install transmission shaft, the fixed cover of transmissionepaxial gear 7 and install the second motor in the support 8 outside in the support 8 bottom, the output shaft and the transmission shaft fixed connection of second motor, just a side ofgear 7 meshes with the tooth'ssocket 6 of slidingsupport pole 5, and here second motor is servo motor, is not shown in the figure, is sheltered from bygear 7.

Concretely, kerve 26 has been seted up between two parties to the top end face ofside shield 13, the bottom ofmagnet piece 14 slides and sets up inkerve 26 to with the top fixed connection of two sets ofsprings 27 of 26 bottom end face symmetries of kerve setting, thekerve 30 of being connected with 14 adaptations of magnet piece and magnetism is seted up to the vertical part side of connectingejector pin 9, and the top end face both sides limit of thisplace magnet piece 14 all is the arc setting, makes it conveniently block into in thekerve 30, andcompression spring 27 downwards simultaneously to block into thekerve 30 back atmagnet piece 14, by the laminating of magnetic adsorption and 14 sides of magnet piece andkerve 30, thereby make connectingejector pin 9 and can not pop out.

Specifically, the top end face of slidingsupport rod 5 is locatedear seat 29 and has seted upslot 28, connect the horizontal part one side top end face ofejector pin 9 and seted up vertical portion of lining up and thelogical groove 31 of the vertical correspondence withslot 28, picture peg 24 slides and pegs graft in leading to thegroove 31, and the handle is installed on the top ofpicture peg 24, and insert inslot 28 in the bottom ofpicture peg 24, and the both sides face of picture peg 24 all is fixed withstopper 32, prevents that thelogical groove 31 of picture peg 24 roll-off, also makes things convenient for the bottom of picture peg 24 to leaveslot 28 simultaneously.

The working principle of the head fixing device for the cardio-cerebrovascular angiography is that when the head fixing device is used, the connecting ejector rod 9 is overturned above the side baffle 13 in an initial state, the side groove 30 of the connecting ejector rod 9 is matched with the magnetic block 14 for magnetic adsorption, a patient starts to lie on the bed body 1, after the head is placed on the head cushion 16, firstly, the height of the head cushion 16 when the patient lies is adjusted, the first motor 19 is started to rotate, the first motor 19 rotates to drive the worm 20 to rotate, and the worm wheel 23 is meshed with the worm wheels to drive the multiple groups of screw rods 22 to synchronously rotate, when the screw rods 22 rotate, the side branch rods 3 and the head supporting plate 2 are lifted on the bed body 1, the height of the head cushion 16 is adjusted, so that the patient can lie more comfortably, after the adjustment is completed, the connecting ejector rod 9 is overturned to the position shown in figure 1 from the initial state, after the overturning is completed, the bottom end of the inserting plate 24 is inserted into the, then, the electric push rod 18 and the second motor can be started to work, the electric push rod 18 works to drive the side clamping plates 4 to approach to the head until the first air bag cushion 12 is contacted with the head, a pressure sensor is arranged between the first air bag cushion 12 and the side clamping plates 4, when the rebounding pressure intensity of the first air bag cushion 12 reaches the detection range of the pressure sensor, the rebounding pressure intensity is transmitted to the controller, the controller controls the electric push rod 18 to stop stretching, the side clamping plates 4 clamp the two sides of the head, the second motor rotates to drive the gear 7 to rotate, the gear 7 is meshed with the tooth grooves 6 to drive the sliding support rod 5 to move downwards, the top pressing plate 11 and the second air bag cushion 15 move downwards until the bottom end of the second air bag cushion 15 is contacted with the head, and a pressure sensor is also arranged between the second air bag cushion 15 and the top plate, when the rebounding pressure intensity reaches the detection range, the transmission is for the controller, controller control second motor stall, accomplish the clamp tightly to the three direction of head, can carry out subsequent radiography, and after the radiography is accomplished, start electric putter 18 and shrink and the second motor reversal, make side splint 4 no longer press from both sides tight head with top clamp plate 11, and upwards extract picture peg 24, make the bottom of picture peg 24 leave slot 28, and upset connection ejector pin 9, make the side channel 30 of connecting ejector pin 9 coincide with magnet piece 14 again, and will connect ejector pin 9 and adsorb in side shield 13 position department, the patient can stand up and leave the bed body 1 this moment.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (8)

1. The utility model provides a head fixing device is used in cardiovascular and cerebrovascular branch of academic or vocational study radiography, includes bed body (1), its characterized in that: a head supporting plate (2) is arranged in the middle of one side of the top end face of the bed body (1), side supporting rods (3) are arranged on two sides of the head supporting plate (2), a vertically through sliding groove (17) is formed in the other side of the head supporting plate (2), sliding supporting rods (5) are inserted in the sliding groove (17) in a sliding mode, side clamping plates (4) are arranged at the top ends of the opposite sides of the two groups of side supporting rods (3), electric push rods (18) are mounted at the top ends of the opposite sides, and lifting mechanisms are connected between the bottoms of the two groups of side supporting rods (3) and the bottom end of the head supporting plate (2) in;

the lower end of one side face, facing the head supporting plate (2), of the sliding supporting rod (5) is provided with tooth grooves (6) which are uniformly arranged at intervals, the top end of the sliding supporting rod (5) is provided with an ear seat (29), a connecting ejector rod (9) is hinged to the ear seat (29) through a pin shaft (25), one side, located on the sliding supporting rod (5), of the bottom end face of the bed body (1) is provided with a meshing transmission mechanism for driving the sliding supporting rod (5) to ascend and descend, the connecting ejector rod (9) is of an L-shaped structure, one end, far away from the sliding supporting rod (5), of the horizontal part of the connecting ejector rod (9) is provided with a top pressing plate (11) through a supporting column (10), and the vertical part of the connecting ejector rod (9) is;

fixed the bonding in position department of a side top of slip branch (5) head layer board (2) adjacent ear seat (29) has side shield (13) dorsad, magnet piece (14) are installed on side shield (13) top, and side shield (13) are connected with connection ejector pin (9) magnetism through magnet piece (14).

2. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: electric putter (18) are embedded to be fixed in the top of side branch (3), and the piston rod of electric putter (18) and the side middle department fixed connection of side splint (4), just side splint (4) all are provided with second gasbag pad (15) towards a side of head layer board (2).

3. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: the top end face of the head supporting plate (2) is in an arc-shaped arrangement, an arc-shaped head cushion (16) is bonded in the arc-shaped groove, the bottom end face of the top pressing plate (11) is also in an arc-shaped arrangement, and a first air bag cushion (12) is arranged in the arc-shaped groove.

4. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: the lifting mechanism comprises a worm (20) arranged in the bed body (1), a plurality of groups of worm wheels (23) meshed with the worm (20), screw rods (22) respectively arranged at the bottom ends of the side supporting rods (3) and the bottom end of the head supporting plate (2) and a first motor (19) driving the worm (20) to rotate, wherein the worm (20), the worm wheels (23), the first motor (19) and the screw rods (22) are all arranged in an inner cavity formed in the bed body (1).

5. The head restraint device for cardio-cerebrovascular radiography according to claim 4, wherein: the output shaft of first motor (19) and the one end fixed connection of worm (20), and worm (20) level sets up in the inner chamber, and its other end passes through axle bed (21) to be fixed on the inner chamber lateral wall, the top of screw rod (22) is in the bottom of side branch (3) and head layer board (2) is inserted to the screw thread respectively, and the bottom of screw rod (22) is all pegged graft and is fixed the internal rotation setting in axle bed (21), worm wheel (23) fixed cover respectively in the outside of multiunit screw rod (22).

6. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: the meshing transmission mechanism comprises a support (8) which is U-shaped and fixedly welded at the bottom end of the bed body (1), a transmission shaft which is arranged in the bottom end of the support (8), a gear (7) which is fixedly sleeved on the transmission shaft, and a second motor which is arranged at the outer side of the support (8), wherein an output shaft of the second motor is fixedly connected with the transmission shaft, and one side surface of the gear (7) is meshed with a tooth groove (6) of the sliding support rod (5).

7. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: bottom slot (26) have been seted up between two parties to the top end face of side shield (13), the bottom of magnet piece (14) slides and sets up in bottom slot (26) to with the top fixed connection of two sets of springs (27) of bottom end face symmetry setting of bottom slot (26), side slot (30) of being connected with magnet piece (14) adaptation and magnetism are seted up to the vertical part side of connecting ejector pin (9).

8. The head fixing device for cardio-cerebrovascular radiography according to claim 1, characterized in that: the top end face of slip branch (5) is located ear seat (29) and has seted up slot (28), connect horizontal part one side top end face of ejector pin (9) and seted up vertical portion of lining up and lead to groove (31) with the vertical correspondence of slot (28), picture peg (24) slide and peg graft in leading to groove (31), and the handle is installed on the top of picture peg (24), and the bottom of picture peg (24) is inserted in slot (28), and the both sides face of picture peg (24) all is fixed with stopper (32).

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