Body position fixing device for examination in radiology department

Abstract

The invention discloses a body position fixing device for radiology department examination, which comprises a bed body, a limiting mechanism, an unlocking mechanism and a plurality of fixing units, the limiting mechanism, the unlocking mechanism and the plurality of fixing units are arranged on the bed body, and the limiting mechanism and the unlocking mechanism are matched with the fixing units. Each fixing unit comprises a clamping plate, a first connecting rod, a second connecting rod, a crank, a movable block, a cylinder and a base, a movable groove is formed in the base, the cylinder is arranged in the movable groove and connected with the movable block, the second connecting rods are symmetrically arranged on the two sides of the movable block, the crank and the movable block are rotationally connected with the second connecting rods, and the crank is rotationally connected with the clamping plate; the clamping plate and the base are both rotationally connected with the first connecting rod. Through the application of the body position fixing device for examination in the radiology department, the operation process is simplified, the operation burden of medical staff is relieved, and the working efficiency of the medical staff is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, and particularly relates to a body position fixing device for radiology examination. BACKGROUND

[0002] In modern medical diagnosis, radiology examination as an important auxiliary diagnostic method is widely used in disease discovery and evaluation. Common radiology examination equipment includes X-ray machine, CT, MRI (magnetic resonance imaging), etc. These devices have strict requirements for patient body position fixation during diagnosis. In order to obtain clear image results, patients need to maintain a specific posture during the examination, especially for limb examination.

[0003] According to the technology recorded in the existing patent document (CN111184527A), a four-limb positioning device for radiology examination mainly includes a bottom plate, a binding belt assembly and two oppositely arranged vertical plates, and a four-limb positioning cavity is formed between the vertical plates. By moving the movable vertical plate along the guide structure, the width of the positioning cavity is adjusted to adapt to the size of the limb; at the same time, the cooperation of the binding belt assembly and the air bag ensures that the limb is firmly fixed. The device uses the air bag to inflate and adhere to the surface of the limb, which improves the comfort and adhesion, and is suitable for patients of different body types and limb positions.

[0004] Although the above-mentioned device solves the problem of limb fixation to some extent, there is still a significant deficiency in convenience: the device needs to adjust the position of the movable vertical plate to adapt to the size of the limb, then fix it through the binding belt assembly, and finally inflate the air bag. This series of operation steps is relatively complex, which increases the operation burden of medical staff and prolongs the preparation time before examination. Especially in the emergency or high-frequency examination scene, this cumbersome operation process may lead to reduced efficiency. SUMMARY

[0005] In view of the above, in order to solve the above problems, the purpose of the present application is to provide a body position fixing device for radiology examination, comprising: a bed body, a limiting mechanism, an unlocking mechanism and a plurality of fixing units, the limiting mechanism, the unlocking mechanism and a plurality of the fixing units are all arranged on the bed body, the limiting mechanism and the unlocking mechanism are matched with the fixing units, each of the fixing units comprises: a clamping plate, a first connecting rod, a second connecting rod, a crank, a movable block, a cylinder and a base, the base is provided with a movable groove, the cylinder is arranged in the movable groove, the upper end of the cylinder is connected with the movable block, the two sides of the movable block are symmetrically provided with the second connecting rod, one end of the second connecting rod is rotatably connected with the movable block, the other end of the second connecting rod is rotatably connected with one end of the crank, the other end of the crank is rotatably connected with the clamping plate, one end of the first connecting rod is rotatably connected with the clamping plate, and the other end of the first connecting rod is rotatably connected with the upper end of the base.

[0006] In another preferred embodiment, a plurality of fixing grooves are arranged on the bed body, and the base is slidably arranged in the fixing groove.

[0007] In another preferred embodiment, the limiting mechanism comprises a positioning column, an outer shaft, a piston and a limiting ball, a groove is arranged on the bottom wall of the fixing groove, a sliding groove is arranged on the cylinder, a side groove is arranged on the side wall of the sliding groove, the lower end of the positioning column is slidably arranged in the groove, the upper end of the positioning column extends into the sliding groove, the outer shaft is arranged between the positioning column and the cylinder, the lower end of the outer shaft is fixedly connected with the bottom wall of the fixing groove, the piston is slidably arranged in the sliding groove and connected with the upper end of the positioning column, a plurality of limiting holes are arranged on the outer shaft in the circumferential direction, a plurality of arc-shaped grooves are arranged on the outer side wall of the positioning column, and one limiting ball is arranged in each arc-shaped groove.

[0008] In another preferred embodiment, the unlocking mechanism comprises a pad, an unlocking groove is arranged on the side wall of the groove, the pad is slidably arranged in the unlocking groove and the groove, one end of the pad close to the groove has an inclined surface, and the lower end of the positioning column is operatively slid along the inclined surface.

[0009] In another preferred embodiment, it further comprises a support pad and an air bag, the support pad is connected with the upper end of the movable block, the air bag is arranged on the side of the two clamping plates close to each other, and the air bag is in communication with the sliding groove.

[0010] In another preferred embodiment, an insertion groove is arranged on the side wall of the fixing groove, and a cover plate is slidably arranged in the insertion groove.

[0011] In another preferred embodiment, a protective film is arranged between the clamping plate and the supporting pad.

[0012] In another preferred embodiment, the air bag is internally provided with a plurality of inflation chambers, and each of the plurality of inflation chambers is in communication with the chute.

[0013] In another preferred embodiment, the surface of the supporting pad is provided with a plurality of air-permeable holes.

[0014] In another preferred embodiment, the side slot is internally provided with an elastic film.

[0015] The application has the positive effects compared with the prior art: through the application of the application, a body position fixing device for radiology examination is provided, which discards the multiple steps of manual adjustment of the movable vertical plate, binding and fixing, and air bag inflation of the traditional device, and only needs the medical staff to guide the patient to place the limbs in the corresponding position, and the self-adaptive adjustment of the fixing unit is triggered by the gravity of the limbs, so that the clamping plate position adjustment and locking are automatically completed, which is beneficial to simplify the operation process, reduce the operation burden of the medical staff, save the key examination time for the patient in emergency, and the unlocking operation of the device is also simple, only needs to turn the pad to easily unlock, which is beneficial to improve the work efficiency of the medical staff. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of a body position fixing device for radiology examination according to the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of a fixing unit of the body position fixing device for radiology examination according to the present application;

[0018] Figure 3 FIG. 3 is a sectional view of the fixing unit of the body position fixing device for radiology examination according to the present application;

[0019] Figure 4 FIG. 4 is an installation schematic view of the fixing unit of the body position fixing device for radiology examination according to the present application;

[0020] Figure 5 FIG. 5 is a partial enlarged view of M in FIG. 4. Figure 4

[0021] In the drawings:

[0022] ​1, bed body; 2, clamping plate; 3, base; 101, fixed groove; 102, recess; 103, elastic piece; 104, positioning column; 105, pad; 106, unlocking groove; 107, outer shaft; 108, piston; 109, limiting ball; 110, limiting hole; 111, arc-shaped groove; 201, air bag; 202, first connecting rod; 203, crank; 204, second connecting rod; 205, movable block; 206, support pad; 207, support shaft; 208, guide pipe; 209, cylinder; 210, sliding groove; 211, side groove; 301, movable groove. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "left", "right", "inner", "outer", "front", "back", "horizontal", "vertical" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] It should be particularly pointed out that "horizontal" and "vertical" in the present application are used to illustrate the approximate position relationship, rather than a strict "horizontal plane" or "vertical plane".

[0026] As Figures 1-5As shown, the body position fixing device for radiology examination of a preferred embodiment comprises a bed body 1, a limiting mechanism, an unlocking mechanism and a plurality of fixing units, the limiting mechanism, the unlocking mechanism and the plurality of fixing units are arranged on the bed body 1, the fixing units are detachably connected with the bed body 1, the fixing units are used for fixing different parts of the patient respectively, the limiting mechanism and the unlocking mechanism are matched with the fixing units, each fixing unit comprises a clamping plate 2, a first connecting rod 202, a second connecting rod 204, a crank 203, a movable block 205, a cylinder 209 and a base 3, the base 3 is provided with a movable groove 301, the cylinder 209 is arranged in the movable groove 301, the upper end of the cylinder 209 is welded with the movable block 205, the two sides of the movable block 205 are symmetrically provided with the second connecting rod 204, one end of the second connecting rod 204 is rotatably connected with the movable block 205, the other end of the second connecting rod 204 is rotatably connected with one end of the crank 203, the other end of the crank 203 is rotatably connected with the clamping plate 2, one end of the first connecting rod 202 is rotatably connected with the clamping plate 2, and the other end of the first connecting rod 202 is rotatably connected with the upper end of the base 3.

[0027] Further, as a preferred embodiment, a plurality of fixing grooves 101 are arranged on the bed body 1, and the base 3 is slidably arranged in the fixing grooves 101. Further, by arranging a plurality of fixing grooves 101, medical staff can select the most suitable position of the fixing grooves 101 according to the actual body type of the patient, which is beneficial to realize the precise adaptation of the limb fixing demand of the patient with different height, body type and examination demand.

[0028] Further, as a preferred embodiment, the limiting mechanism comprises the positioning column 104, the outer shaft 107, the piston 108 and the limiting ball 109, the bottom wall of the fixed groove 101 is provided with the recess 102, the cylinder 209 is provided with the sliding groove 210, the side wall of the sliding groove 210 is provided with the side slot 211, the lower end of the positioning column 104 is slidingly arranged in the recess 102, the upper end of the positioning column 104 extends into the sliding groove 210, the positioning column 104 can slide along the sliding groove 210, the outer shaft 107 is arranged between the positioning column 104 and the cylinder 209, and the lower end of the outer shaft 107 is fixedly connected with the bottom wall of the fixed groove 101, the piston 108 is slidingly arranged in the sliding groove 210 and is bonded with the upper end of the positioning column 104, the outer shaft 107 is provided with a plurality of limiting holes 110 in the circumferential direction, the outer side wall of the positioning column 104 is provided with a plurality of arc-shaped grooves 111, the arc-shaped grooves 111 are matched with the outer contour of the limiting ball 109, and each of the arc-shaped grooves 111 is provided with a limiting ball 109, the limiting ball 109 is operatively engaged with the side slot 211, and when the limiting ball 109 enters the side slot 211, the side slot 211 is matched with the limiting ball 109. Further, when the movable block 205 is displaced to the preset distance, the positioning column 104 can push the limiting ball 109 away from the arc-shaped groove 111, the limiting ball 109 leaves the arc-shaped groove 111 until the limiting ball 109 enters the limiting hole 110 and is engaged with the side slot 211.

[0029] Further, as a preferred embodiment, the elastic member 103 is arranged between the positioning column 104 and the recess 102.

[0030] Further, as a preferred embodiment, the elastic member 103 is preferably an air spring. Further, the air spring is a prior art, and thus will not be described in detail here.

[0031] Further, as a preferred embodiment, the number of the side slots 211 is preferably one, and the elastic support member is preferably an air spring and is arranged between the piston 108 and the upper end inner wall of the sliding groove 210. Further, in the process of moving the movable block 205 downward, the cylinder 209 can drive the piston 108 and the positioning column 104 to move downward, until the side slot 211 is aligned with the limiting hole 110, the elastic support member can press the piston 108, the piston 108 in turn presses the positioning column 104, the limiting ball 109 enters the limiting hole 110 and the side slot 211 under the action of the positioning column 104, until the arc-shaped groove 111 is misaligned with the limiting hole 110, and the limiting ball 109 will not easily leave the limiting hole 110 and the side slot 211.

[0032] In another embodiment of the utility model, when the air pressure change in the chute 210 is greater than the preset threshold, the limiting mechanism can be engaged with the side groove 211, at this time, the number of side grooves 211 is preferably multiple, and the multiple side grooves 211 are linearly arranged along the length direction of the cylinder 209, when the limb is thicker, since the displacement distance between the clamping plate 2 and the movable block 205 is shorter, the movable distance between the clamping plate 2 and the limb is also smaller, thus causing the clamping plate 2 to only need to move a small distance, and the air bag 201 will be squeezed, further causing a greater air pressure change in the chute 210, at this time, the air pressure change will act on the piston 108 to make the piston 108 move downward, and the downward movement of the piston 108 can drive the positioning column 104 to also move downward, and the sidewall of the arc-shaped groove 111 will squeeze the limiting ball 109 during the downward movement of the positioning column 104, so that the limiting ball 109 tends to move in the direction of approaching the positioning column 104, when the side groove 211 closest to the limiting ball 109 is opposite the limiting hole 110, the limiting ball 109 quickly enters the side groove 211 to be fixed; when the limb is thinner, at this time, the movable distance between the clamping plate 2 and the limb is larger, at this time, the clamping plate 2 needs to move a larger distance to squeeze the air bag 201, and at this time, the movable block 205 needs to move a larger distance, and the air pressure change in the chute 210 can reach the preset threshold, when the air pressure change in the chute 210 is greater than the preset threshold, the limiting hole 110 will pass through several side grooves 211 during the downward movement of the positioning column 104, and the positioning column 104 stops moving when the limiting hole 110 is opposite one of the side grooves 211, and the limiting ball 109 is discharged into the limiting hole 110 and the side groove 211 to form a "ball-groove" locking structure, so that the limiting ball 109 will not easily separate from the limiting hole 110 and the side groove 211.

[0033] Further, as a preferred embodiment, the unlocking mechanism comprises: a pad 105, an unlocking groove 106 is formed on the sidewall of the recess 102, the unlocking groove 106 is arranged in communication with the recess 102, the pad 105 is slidably arranged in the unlocking groove 106 and the recess 102, one end of the pad 105 close to the recess 102 has an inclined surface, and the lower end of the positioning column 104 is operatively slid along the inclined surface. Further, the pad 105 is preferably arranged in a rod-shaped structure, one end of the pad 105 away from the recess 102 extends to one side of the bed body 1, by pushing or pressing the pad 105, the pad 105 can be inserted into the recess 102, when the pad 105 is inserted into the recess 102, the pad 105 can be slidably matched with the lower end of the positioning column 104, the lower end of the positioning column 104 can slide along the inclined surface of the pad 105, and the pad 105 can thereby lift the positioning column 104 upward.

[0034] Further, as a preferred embodiment, the support pad 206 is welded with the movable block 205, and a support shaft 207 is welded between the support pad 206 and the movable block 205.

[0035] Further, as a preferred embodiment, the support pad 206 is welded with the movable block 205, and a support shaft 207 is welded between the support pad 206 and the movable block 205.

[0036] Further, as a preferred embodiment, the support pad 206 is preferably made of medical silica gel. Further, the medical silica gel has excellent flexibility and resilience, and when the patient's limb is placed on the support pad 206, the medical silica gel can be slightly deformed according to the contour of the patient's limb, so that the support pad 206 is more fitted to the patient's limb, which is beneficial to improve the comfort of the patient.

[0037] Further, as a preferred embodiment, the side wall of the fixing groove 101 is provided with a slot, and a cover plate is slidably arranged in the slot. Further, when the suitable fixing groove 101 is determined, the cover plates in the remaining fixing grooves 101 can be pulled out of the slots to cover the idle fixing grooves 101. The cover plate can effectively block dust, liquid splashing or dander in the air from entering the fixing groove 101, thereby avoiding the accumulation of foreign matter to cause the positioning column to slide, the limiting ball to move, or bacteria to grow.

[0038] Further, as a preferred embodiment, a protective film is arranged between the clamping plate 2 and the support pad 206, and the clamping plate 2 and the support pad 206 are bonded with the protective film. Further, the protective film can completely cover the gap between the clamping plate 2 and the support pad 206, so as to avoid the patient's fingers, the end of the limb or the clothes from being clamped by the clamping plate 2 or other mechanical parts by accident.

[0039] Further, as a preferred embodiment, the inside of the air bag 201 is provided with a plurality of inflation chambers, and the plurality of inflation chambers are in communication with the sliding groove 210.

[0040] Further, as a preferred embodiment, each air bag 201 in the embodiment includes at least three independent inflation chambers, and each inflation chamber is in communication with the sliding groove 210 through a conduit 208. Further, when the patient's limb is placed on the support pad 206, the inflation chambers at different positions can automatically adjust the degree of inflation according to the contour of the limb, which is beneficial to eliminate the fitting defects of the traditional whole air bag "middle drum, edge empty", and for irregular parts of the limb, the multiple inflation chambers can be adjusted by local pressure to adapt to the joint protrusions or depressions, so as to avoid insufficient fitting of the air bag 201 to the limb.

[0041] Further, as a preferred embodiment, the surface of the support pad 206 is provided with a plurality of air holes. Further, the air holes can effectively prevent the patient from feeling stuffy and uncomfortable due to long-term contact with the support pad 206, thereby improving the patient's experience comfort.

[0042] Further, as a preferred embodiment, the side groove 211 is provided with an elastic film, and the elastic film is bonded to the inner wall of the side groove 211. Further, when the unlocking mechanism pushes the positioning column 104 back, the limiting ball 109 needs to retreat from the limiting hole 110 to the arc-shaped groove 111, at this time, the elastic film can provide a continuous and soft pushing force on the moving path of the limiting ball 109 by virtue of its own elastic deformation capacity, to ensure that the limiting ball 109 completely leaves the side groove 211 and enters the limiting hole 110, thereby preventing the limiting ball 109 from being stuck at the edge of the side groove 211 due to mechanical friction, dust jamming or machining errors, etc.

[0043] The working principle of the present application is as follows: before use, medical staff can select the appropriate position of the fixed groove 101 according to the height and body shape of the patient, then slide the cover plate to cover the remaining idle fixed groove 101, and put the base 3 into the predetermined fixed groove 101, then the patient can lie on the head, trunk and limbs on the respective support pads 206, specifically, taking the calf as an example: when the patient's calf is placed on the support pad 206, the gravity of the patient's calf can drive the support pad 206 to sink downward, thereby driving the movable block 205 to move downward along the sliding groove 210, the movable block 205 moves downward to drive the second connecting rod 204 to move downward, the movement of the second connecting rod 204 drives the crank 203 to rotate, the crank 203 rotates to drive the clamping plate 2 to deflect and fold towards the calf direction until the air bag 201 is attached to the side of the calf, as the movable block 205 continues to move downward under the action of gravity, the pressure between the air bag 201 and the calf gradually increases, since the air bag 201 is communicated with the sliding groove 210, the air in the air bag 201 is discharged into the sliding groove 210, and the movable block 205 also continuously squeezes the air in the sliding groove 210 during the downward movement, thereby increasing the air pressure in the sliding groove 210, the increased air pressure acts on the piston 108 to make the piston 108 move downward, driving the positioning column 104 to move downward, until the air pressure in the sliding groove 210 changes by more than a predetermined threshold value, and at the same time one of the side grooves 211 is aligned with the limiting hole 110, the limiting ball 109 is discharged into the limiting hole 110 and the side groove 211 under the extrusion of the inner wall of the arc-shaped groove 111, so that the cylinder 209 and the outer shaft 107 are fixed, when the limiting ball 109 leaves the arc-shaped groove 111, the positioning column 104 will continue to move downward by a small distance under the action of air pressure, until it is out of position with the limiting hole 110, since the arc-shaped groove 111 and the limiting hole 110 are not in alignment at this time, the limiting ball 109 cannot enter the arc-shaped groove 111 at this time; when unlocking is needed, only the pad 105 is needed to be actuated, so that the pad 105 is inserted into the groove 102, and the lower end of the positioning column 104 is in contact with the inclined surface of the pad 105, at this time, the positioning column 104 can be lifted upward along the inclined surface of the pad 105 by pushing the pad 105, so that the positioning column 104 is lifted upward until the arc-shaped groove 111 is aligned with the limiting hole 110 again, at this time, the limiting ball 109 moves to the limiting hole 110 and the arc-shaped groove 111 under the action of the elastic film, at this time, the patient lifts the calf upward, and the clamping plate 2 can be pushed apart to the two sides, the outward deflection of the clamping plate 2 can drive the second connecting rod 204 to move upward, the upward movement of the second connecting rod 204 can drive the movable block 205, the cylinder 209 and the support pad 206 to move upward, until the calf is completely separated from the clamping plate 2, and the reset is completed, the patient's calf can leave between the two clamping plates 2.

[0044] The above merely describes preferred embodiments of the present application, and is not intended to limit the implementation and protection scope of the present application. Those skilled in the art should be able to understand that any equivalent substitutions and obvious changes made according to the present application description and drawings should be included in the protection scope of the present application.

Claims

1. A body positioning device for radiological examinations, characterized in that, include: The system comprises a bed frame, a limiting mechanism, an unlocking mechanism, and several fixing units. The limiting mechanism, the unlocking mechanism, and the fixing units are all mounted on the bed frame. The limiting mechanism and the unlocking mechanism cooperate with the fixing units. Each fixing unit includes: a clamping plate, a first connecting rod, a second connecting rod, a crank, a movable block, a cylinder, and a base. The base has a movable groove, and the cylinder is disposed within the movable groove. The upper end of the cylinder is connected to the movable block. The second connecting rods are symmetrically arranged on both sides of the movable block. One end of the second connecting rod is rotatably connected to the movable block, and the other end is rotatably connected to one end of the crank. The other end of the crank is rotatably connected to the clamping plate. One end of the first connecting rod is rotatably connected to the clamping plate, and the other end is rotatably connected to the upper end of the base.

2. The body positioning device for radiological examinations according to claim 1, characterized in that, The bed has several fixing grooves, and the base is slidably disposed in the fixing grooves.

3. The body positioning device for radiological examinations according to claim 2, characterized in that, The limiting mechanism includes: a positioning post, an outer shaft, a piston, and a limiting ball. A groove is formed on the bottom wall of the fixing groove, a sliding groove is formed on the cylinder, and a side groove is formed on the side wall of the sliding groove. The lower end of the positioning post is slidably disposed within the groove, and the upper end of the positioning post extends into the sliding groove. The outer shaft is disposed between the positioning post and the cylinder, and the lower end of the outer shaft is fixedly connected to the bottom wall of the fixing groove. The piston is slidably disposed within the sliding groove and connected to the upper end of the positioning post. The outer shaft has several limiting holes along its circumference, and several arc-shaped grooves are formed on the outer side wall of the positioning post. Each arc-shaped groove contains a limiting ball, which is operably engaged with the side groove.

4. The body positioning device for radiological examinations according to claim 3, characterized in that, The unlocking mechanism includes: a pad, an unlocking groove is provided on the side wall of the groove, the pad is slidably disposed in the unlocking groove and the groove, the end of the pad near the groove has an inclined surface, and the lower end of the positioning post can be operably slid along the inclined surface.

5. The body positioning device for radiological examinations according to claim 3, characterized in that, Also includes: The support pad and the airbag are provided. The support pad is connected to the upper end of the movable block. The airbag is located on the side of the two clamping plates that are close to each other. The airbag is connected to the sliding groove.

6. The body positioning device for radiological examinations according to claim 2, characterized in that, A slot is provided on the side wall of the fixing groove, and a cover plate is slidably disposed in the slot.

7. The body positioning device for radiological examinations according to claim 5, characterized in that, A protective film is provided between the clamping plate and the support pad.

8. The body positioning device for radiological examinations according to claim 5, characterized in that, The airbag has several inflation chambers inside, and each of the inflation chambers is connected to the slide groove.

9. The body positioning device for radiological examinations according to claim 5, characterized in that, The surface of the support pad is provided with several ventilation holes.

10. The body positioning device for radiological examinations according to claim 3, characterized in that, An elastic membrane is provided inside the side groove.

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