CN210019389U

CN210019389U - Neurosurgery cerebrovascular radiography support

Info

Publication number: CN210019389U
Application number: CN201920483689.6U
Authority: CN
Inventors: 王昊
Original assignee: Hangzhou First Peoples Hospital
Current assignee: Hangzhou First Peoples Hospital
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-07
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a neurosurgery cerebral angiography bracket, which comprises a base and a boss fixed on the base, the upper end surface of the base is connected with a bearing pad which can move up and down through a spring in a sliding way, an arc-shaped recess for bearing the head is arranged on the bearing pad, side pressure plates which are connected with the base in a sliding way are symmetrically arranged at two sides of the bearing pad, side screw rods which are matched with the side pressure plates in a threaded way are arranged in the base, the side screw rod drives the side pressing plates to move oppositely or reversely when being driven to rotate by the fixed motor, one side of the side pressing plates, which is close to the bearing pad, is provided with an air bag, when the side pressure plates move oppositely to approach the bearing pad, the air bag presses the head part on the bearing pad, when the pressure on the air bag exceeds a set value, the fixed motor is controlled to stop working through a sensor.

Description

Neurosurgery cerebrovascular radiography support

Technical Field

The utility model relates to the technical field of medical equipment, specifically a neurosurgery blood vessel of brain radiography support.

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.

In the prior art, common head radiography supports all adopt a bipartite symmetrical structure, and if no special protection measures are provided in practical application, the supports are easy to fall off to cause the head to shake, so that the imaging effect is influenced. And the head size of different patients is different, and the support needs the head type of accurate adaptation different sizes, and whether fixed finishing, unfavorable factors such as hasp inconvenience are in addition difficult to confirm to current support. Therefore, the fixing effect of the existing bracket is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an in overcoming current brain blood vessel radiography support, the locking mode that locating hole locking influence application scope caused is unreasonable to and the poor problem of fixed effect that does not injure patient's head degree of freedom and causes, thereby provide one kind can realize real-time auto-lock, fixed effectual neurosurgery brain blood vessel radiography support.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a neurosurgery cerebral angiography support comprises a base and a boss fixed on the base, wherein the upper end face of the base is slidably connected with a bearing pad capable of moving up and down through a spring, side pressing plates slidably connected to the base are symmetrically arranged on two sides of the bearing pad, a side screw rod in threaded fit with the side pressing plates is arranged in the base, the side screw rod drives the side pressing plates to move in the opposite direction or in the opposite direction when being driven by a fixing motor, an air bag is arranged on one side, close to the bearing pad, of the side pressing plates, the air bag can press the head on the bearing pad when the side pressing plates move in the opposite direction and are close to the bearing pad, and when the pressure applied to the air bag exceeds a set value, the fixing motor is controlled by a sensor to stop working; an upper screw driven to rotate by a reset motor is vertically arranged in the boss, an upper pressing plate positioned above the bearing pad is connected to the upper screw in a threaded fit manner, the upper pressing plate can be driven to move up and down when the upper screw rotates, a protection plate with flexible buffering is fixed at the lower end of the upper pressing plate, the protection plate can press the forehead part of the head positioned on the bearing pad, a first gear set connected with the bearing pad is keyed on the lower section of the upper screw, the first gear set and the upper screw rotate coaxially and can move up and down along the upper screw under the driving of the bearing pad, a first helical gear rotating coaxially with the side screw is keyed on the side screw, a second gear set is meshed with one side of the first helical gear close to the upper screw, and when the bearing pad is positioned at the lowest position, the first gear set and the second gear set just disengage, when the other positions are in other positions, the first gear set and the second gear set are always meshed; the bearing pad moves downwards under the action of the gravity of the head and the pressure of the upper pressure plate to drive the first gear set and the second gear set to be disengaged; the width of the base is less than fifty centimeters, and the base is only used for fixing the head, can move freely and is matched with different beds for use; the base both sides screw-thread fit connection has vertical adjusting screw, adjusting screw bottom fit connection has and is used for stable base, works as adjusting screw can drive when rotatory the base reciprocates, thereby makes the base can cooperate not the bed of co-altitude.

The first gear set comprises a second gear, a third gear, a bearing and a fixed support, the second gear and the third gear are respectively in key joint with the upper screw, the second gear is fixedly connected with the third gear through the fixed support, the second gear is detachably meshed with the second gear set, the third gear is sleeved with the bearing, the bearing is fixedly connected with the bearing pad through a connecting frame, and therefore the bearing pad can drive the second gear to slide up and down along the upper screw. Set up two gears in first gear train, the transmission of second gear mainly used is rotatory, and third gear cooperation bearing mainly used drives reciprocating of second gear, and dispersion pressure prolongs the life of first gear train to the maintenance of being convenient for, single gear change is convenient, and is with low costs.

The second gear set comprises a second helical gear and a first gear which rotate coaxially, the second helical gear is always meshed with the first helical gear, the first gear is detachably meshed with the second gear, and the gear ratio formed by the second gear set can ensure that the upper pressure plate presses the head part earlier than the side pressure plate. The rotation speed ratio is set through the second gear set, and the fixation of the head in three directions can be completed only by fixing the motor to work.

When the upper pressing plate is positioned at the uppermost part of the upper screw rod, the upper pressing plate is just in non-threaded connection with the upper screw rod. When the upper screw rotates to enable the upper pressing plate to move to the top of the upper screw, the upper pressing plate is separated from threads on the upper screw, the upper screw can continue to rotate, the side pressing plate is driven to move in the direction away from the bearing pad through the first gear set, the second gear set, the first bevel gear and the side screw, and the upper pressing plate and the side pressing plate can be reset only by the operation of the reset motor.

The upper end and the lower end of the spring are respectively fixed with a repulsive electromagnet, the lower end of the protection plate is fixed with a touch switch capable of controlling the electromagnet, when the protection plate presses the forehead part of the head, the touch switch is in contact with the skin to stop the electromagnet, and when the touch switch is separated from the head, the electromagnet recovers the repulsive effect. The arrangement of the repulsive electromagnets can ensure that the bearing pad cannot directly move to the lowest part under the action of the gravity of the head, and ensure the meshing transmission of the first gear set and the second gear set.

The bearing pad is provided with an arc-shaped recess for bearing the head.

Compared with the prior art, the utility model has the advantages of: the fixing and resetting of the whole device can be completed only by one motor, the structure is simple, the cost is low, and the maintenance is convenient; the head fixing device can be precisely attached to heads with different sizes, the heads cannot be excessively pressed, self-locking is carried out through screw threads, and the fixing effect is good; the elastic force of the spring can support the head, the bearing pad can move to the lowest part only by adding the pressure of the upper pressure plate, and the first gear set and the second gear set can be disengaged only when the bearing pad is positioned at the lowest part, so that the upper pressure plate can be further ensured to stably press the head; the end face of the base is of a rectangular structure, and can be spliced with a bed, so that the bed can be conveniently used by patients who cannot get out of the bed.

Drawings

Fig. 1 is an overall structure front view of the present invention;

fig. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

FIG. 4 is a schematic view of the upper platen of FIG. 3 in a depressed configuration;

FIG. 5 is a cross-sectional view B-B of FIG. 2;

FIG. 6 is a schematic view showing the structure of the side platen of FIG. 5 when it is moved;

fig. 7 is a side view of the overall mechanism of the present invention;

the names of the parts corresponding to the respective reference numerals are: the air bag adjusting mechanism comprises a base 1, a boss 11, an upper pressing plate 12, a protective plate 13, a side pressing plate 2, a bearing pad 3, a spring 31, a connecting frame 32, an air bag 4, an adjusting screw 5, a base 51, a side screw 6, a first bevel gear 61, a second bevel gear 7, a first gear 71, a second gear 72, an upper screw 8, a third gear 81, a bearing 82, a fixing support 83, a fixing motor 91 and a reset motor 92.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is to be noted that, in the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one.. said element does not exclude the presence of other like elements in the process, method, article or apparatus that comprises the element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The utility model comprises a base 1 and a boss 11 fixed on the base 1, wherein the upper end surface of the base 1 is connected with a bearing pad 3 which can move up and down through a spring 31 in a sliding way, the bearing pad 3 is provided with an arc-shaped recess for bearing the head, the two sides of the bearing pad 3 are symmetrically provided with side pressure plates 2 which are connected with the base 1 in a sliding way, a side screw 6 in threaded fit with the side pressing plate 2 is arranged in the base 1, the side screw 6 drives the side pressing plate 2 to move in the opposite direction or in the back direction when being driven by a fixed motor 91 to rotate, an air bag 4 is arranged on one side of the side pressing plate 2 close to the bearing pad 3, when the side pressure plates 2 move towards each other and approach the bearing pad 2, the air bag 4 presses the head part of the bearing pad 3, when the pressure applied to the air bag 4 exceeds a set value, the fixed motor 91 is controlled to stop working through a sensor; an upper screw 8 driven by a reset motor 92 to rotate is vertically arranged in the boss 11, an upper pressing plate 12 positioned above the bearing pad 3 is connected to the upper screw 8 in a threaded fit manner, the upper pressing plate 12 can be driven to move up and down when the upper screw 8 rotates, a protection plate 13 with a flexible buffer is fixed at the lower end of the upper pressing plate 12, the protection plate 13 can press the forehead part of the head on the bearing pad 3, a first gear set connected with the bearing pad 3 is keyed on the lower section of the upper screw 8, the first gear set and the upper screw 8 can move up and down along the upper screw 8 under the drive of the bearing pad 3 while rotating coaxially, a first helical gear 61 coaxially rotating with the side screw 6 is keyed on the side screw 6, and a second gear set is engaged and connected to one side of the first helical gear 61 close to the upper screw 8, when the bearing pad 3 is positioned at the lowest part, the first gear set and the second gear set are just disengaged, and the first gear set and the second gear set are always engaged when the rest positions are available; the upper end and the lower end of the spring 31 are respectively fixed with repellent electromagnets, the lower end of the protection plate 13 is fixed with a touch switch capable of controlling the electromagnets, when the protection plate 13 presses the forehead part of the head, the touch switch is in contact with the skin so as to stop the electromagnets, the bearing pad 3 moves downwards under the gravity action of the head and the pressure of the upper pressing plate 12 to drive the first gear set and the second gear set to be disengaged, and when the touch switch is separated from the head, the electromagnets recover the repellent action.

The first gear set comprises a second gear 72, a third gear 81, a bearing 82 and a fixed support 83, the second gear 72 and the third gear 81 are respectively in key joint with the upper screw 8, the second gear 72 is fixedly connected with the third gear 81 through the fixed support 83, the second gear 72 is detachably meshed with the second gear set, the bearing 82 is sleeved outside the third gear 81, and the bearing 82 is fixedly connected with the bearing pad 3 through a connecting frame 32, so that the bearing pad 3 can drive the second gear 72 to slide up and down along the upper screw 8.

The second gear set comprises a second helical gear 7 and a first gear 71 which rotate coaxially, the second helical gear 7 is always meshed with the first helical gear 61, the first gear 71 is detachably meshed with the second gear 72, and the gear ratio formed by the second gear set can ensure that the upper pressure plate 12 presses the head part earlier than the side pressure plate 2.

When the upper pressing plate 12 is positioned at the uppermost part of the upper screw 8, the upper pressing plate 12 is just in non-threaded connection with the upper screw 8.

The width of the base 1 is less than fifty centimeters, and the base 1 is only used for fixing the head, can move freely and is matched with different beds for use.

The base 1 both sides screw-thread fit is connected with vertical adjusting screw 5, adjusting screw 5 bottom fit is connected with and is used for stable base 51, works as adjusting screw 5 can drive when rotatory base 1 reciprocates, thereby makes base 1 can cooperate the not bed of co-altitude.

The working process is as follows: moving the base 51 to the bedside position of a patient, adjusting the height of the base 1 through the adjusting screw 5, placing the head of the patient on the arc-shaped recess of the bearing pad 3, switching on a power supply, enabling the bearing pad 3 to be located at the uppermost position by the work of the electromagnet, starting the fixed motor 91, enabling the fixed motor 91 to drive the side screw 6 to rotate, enabling the side pressing plate 2 to move towards the direction close to the bearing pad 3 under the action of thread fit, enabling the side screw 6 to drive the first helical gear 61 to rotate, enabling the first helical gear 61 to drive the second gear 72 to rotate through the second helical gear 7 and the first gear 71, enabling the second gear 72 to drive the upper screw 8 to rotate, and enabling the upper pressing plate 12 to move downwards under the action of thread fit; when the touch switch on the protection plate 13 contacts the head, the electromagnet stops working, the spring 31 bears the bearing pad 3, the upper pressing plate 12 presses the head to drive the bearing pad 3 to move downwards, the first gear set moves downwards along the upper screw 8 when the bearing pad 3 passes through the connecting frame 32, when the bearing pad 3 moves to the lowest part, the second gear 72 is disengaged from the first gear 71, the upper screw 8 stops rotating, the upper pressing plate 12 is locked through the self-locking function of the threads, and the forehead limiting part 12 is matched with the spring 31 to press the head; and due to the gear ratio formed by the second gear set, the side pressing plate 2 does not contact the head at the moment, the fixed motor 91 continuously works, the side pressing plate 2 moves towards the direction close to the bearing pad 3 to be in contact with the head, and when the pressure applied to the air bag 4 in contact with the head exceeds a set value, the fixed motor 91 is controlled to stop working through a sensor, so that the head fixing work is finished.

Resetting: the reset motor 92 is started, the reset motor 92 drives the upper screw 8 to rotate, the upper pressing plate 12 moves upwards under the action of thread fit, the touch switch on the protection plate 13 is separated from the head, the electromagnet is electrified to start working, the repulsive force of the spring 31 and the electromagnet pushes the bearing pad 3 to move upwards, the bearing pad 3 drives the second gear 72 to move upwards through the connecting frame 32, so that the second gear 72 is meshed with the first gear 71, the upper screw 8 rotates to drive the second gear 72 to rotate, the second gear 72 drives the side screw 6 to rotate through the second gear set and the first bevel gear 61, and the side pressing plate 2 moves towards the direction far away from the bearing pad 3 under the action of the side screw 6; when the upper press plate 12 moves to the uppermost position, the upper press plate 12 is just separated from the threads on the upper screw 8, the upper screw 8 continues to rotate without being interfered by the upper press plate 12, and the reset motor 92 continues to work until the side press plate 2 is reset.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A neurosurgery cerebral angiography support comprises a base (1) and a boss (11) fixed on the base (1), and is characterized in that: the upper end surface of the base (1) is connected with a bearing pad (3) which can move up and down in a sliding way through a spring (31), lateral pressure plates (2) which are connected with the base (1) in a sliding way are symmetrically arranged at two sides of the bearing pad (3), a side screw (6) which is in threaded fit with the side pressure plate (2) is arranged in the base (1), the side screw rods (6) drive the side pressing plates (2) to move in the opposite direction or the back direction when being driven to rotate by the fixed motor (91), an air bag (4) is arranged on one side of the side pressure plate (2) close to the bearing pad (3), when the side pressure plates (2) move oppositely to approach the bearing pad (3), the air bag (4) presses the head part on the bearing pad (3), when the pressure applied to the air bag (4) exceeds a set value, the fixed motor (91) is controlled to stop working through a sensor; an upper screw rod (8) driven by a reset motor (92) to rotate is vertically arranged in the boss (11), an upper pressing plate (12) positioned above the bearing pad (3) is connected to the upper screw rod (8) in a threaded fit mode, the upper pressing plate (12) can be driven to move up and down when the upper screw rod (8) rotates, a protection plate (13) with flexible buffering is fixed at the lower end of the upper pressing plate (12), the forehead part of the head on the bearing pad (3) can be pressed by the protection plate (13), a first gear set connected with the bearing pad (3) is connected to the lower section of the upper screw rod (8) in a key joint mode, the first gear set and the upper screw rod (8) can rotate coaxially and can move up and down along the upper screw rod (8) under the driving of the bearing pad (3), a first helical gear (61) coaxially rotating with the lateral screw rod (6) is connected to the lateral screw rod (6) in a key joint mode, one side of the first bevel gear (61), which is close to the upper screw (8), is engaged with a second gear set, when the bearing pad (3) is positioned at the lowest part, the first gear set and the second gear set are just disengaged, and the first gear set and the second gear set are engaged all the time when the rest positions are available; the bearing pad (3) moves downwards under the action of the gravity of the head and the pressure of the upper pressure plate (12) to drive the first gear set to be disengaged from the second gear set; the width of the base (1) is less than fifty centimeters, and the base (1) is only used for fixing the head, can move freely and is matched with different beds for use; base (1) both sides screw-thread fit is connected with vertical adjusting screw (5), adjusting screw (5) bottom cooperation is connected with and is used for stable base (51), works as adjusting screw (5) can drive when rotatory base (1) reciprocates, thereby makes base (1) can cooperate the not bed of co-altitude.

2. A neurosurgical cerebrovascular angiography stent according to claim 1, wherein: the first gear set comprises a second gear (72), a third gear (81), a bearing (82) and a fixed support (83), the second gear (72) and the third gear (81) are respectively in key joint with the upper screw (8), the second gear (72) is fixedly connected with the third gear (81) through the fixed support (83), the second gear (72) is detachably meshed with the second gear set, the bearing (82) is sleeved outside the third gear (81), and the bearing (82) is fixedly connected with the bearing pad (3) through a connecting frame (32), so that the bearing pad (3) can drive the second gear (72) to slide up and down along the upper screw (8).

3. A neurosurgical cerebrovascular angiography stent according to claim 2, wherein: the second gear set comprises a second helical gear (7) and a first gear (71) which rotate coaxially, the second helical gear (7) is always meshed with the first helical gear (61), the first gear (71) is detachably meshed with the second gear (72), and the gear ratio formed by the second gear set can ensure that the upper pressure plate (12) presses the head part of the side pressure plate (2) first.

4. A neurosurgical cerebrovascular angiography stent according to claim 1, wherein: when the upper pressing plate (12) is positioned at the uppermost part of the upper screw rod (8), the upper pressing plate (12) is just in non-threaded connection with the upper screw rod (8).

5. A neurosurgical cerebrovascular angiography stent according to claim 1, wherein: the upper end and the lower end of the spring (31) are respectively fixed with repelling electromagnets, the lower end of the protection plate (13) is fixed with a touch switch capable of controlling the electromagnets, when the protection plate (13) presses the forehead part of the head, the touch switch is in contact with the skin to stop the electromagnets, and when the touch switch is separated from the head, the electromagnets recover the repelling effect.

6. A neurosurgical cerebrovascular angiography stent according to claim 1, wherein: the bearing pad (3) is provided with an arc-shaped recess for bearing the head.