Puncture device for neurology nursing

Abstract

This invention relates to the field of medical devices, specifically to a puncture device for neurological nursing, comprising a frame, a bed board, and a limiting mechanism. The bed board is vertically and horizontally positioned below the limiting mechanism. The limiting mechanism includes a head and back limiting unit, a hip and leg limiting unit, and a slide rail unit. The slide rail unit includes two slide rails connected to the frame, with the width of the bed board and the length of the guide rails being less than the distance between the two slide rails. The head and back limiting unit includes a head and back support frame slidably connected to and fixed to the slide rails, a head and back limiting block rotatably connected to the head and back support frame, and an upper body support block perpendicularly and fixedly connected to the head and back limiting block. The hip and leg limiting unit includes a hip and leg support frame slidably connected to and fixed to the slide rails, a hip and leg limiting block rotatably connected to the hip and leg support frame, and a lower body support block perpendicularly and fixedly connected to the hip and leg limiting block. This technical solution helps to address safety issues arising from patients' easily changing lying positions, lumbar twisting during position adjustments, and orthostatic hypotension.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to a puncture device for neurological nursing care. Background Technology

[0002] Before a lumbar puncture, the patient usually lies on their side with their hands around their knees and their head flexed forward to widen the intervertebral space and facilitate the puncture procedure. However, during the clinical puncture, the stimulation can easily cause the patient's limbs to move, which may lead to displacement of the puncture needle, dislodgement from the epidural space, or even other injuries, threatening the patient's safety. Children, in particular, are more sensitive to pain due to their smaller size and require extra protection during puncture.

[0003] After the puncture, the patient needs to lie flat without a pillow for care to reduce the risk of low intracranial pressure headache. Because there is a puncture hole in the lumbar spine, patients are prone to complications such as bleeding and effusion if they turn over or twist their waist. Currently, medical staff usually assist patients to change from a lateral to a supine position. However, because the patient lies on their left side at the edge of the bed for the convenience of medical staff during the puncture, improper operation may still cause lumbar twisting, affecting the patient's safety.

[0004] In addition, during lumbar puncture, patients maintain a side-lying curled-up position for a long time. When the puncture is completed and the patient turns to lie flat, the blood distribution in the patient's body needs to readjust. That is, the patient suddenly stretches out from the curled-up position, and the volume of the vascular bed suddenly increases, which can easily lead to problems with postural tolerance, breathing and blood circulation. Summary of the Invention

[0005] The present invention aims to provide a puncture device for neurological nursing care to solve safety problems caused by patients’ easily changing lying positions, lumbar twisting, or orthostatic hypotension during the adjustment of body position.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a puncture device for neurological nursing, comprising a frame, a bed board, a lifting mechanism, and a limiting mechanism. The lifting mechanism includes a lifting frame mounted on the frame and guide rails fixed to the lifting frame, with the bed board slidably connected to the guide rails. The limiting mechanism includes a head and back limiting unit, a hip and leg limiting unit, and a slide rail unit. The slide rail unit includes two slide rails connected to the frame, with the width of the bed board and the length of the guide rails being less than the distance between the two slide rails. The head and back limiting unit includes a head and back support frame slidably connected to and fixed to the slide rails, a head and back limiting block rotatably connected to the head and back support frame, and an upper body support block perpendicularly connected to and fixedly connected to the head and back limiting block. The hip and leg limiting unit includes a hip and leg support frame slidably connected to and fixed to the slide rails, a hip and leg limiting block rotatably connected to the hip and leg support frame, and a lower body support block perpendicularly connected to and fixedly connected to the hip and leg limiting block. The hip and leg limiting block and the head and back limiting block rotate along the same axis.

[0007] The beneficial effects of this method are as follows: Before the puncture, the limiting mechanism moves and the patient lies on their side on the upper body support block and the lower body support block. Then, the limiting mechanism moves in conjunction with the patient's posture adjustment to make the patient lie on their side and be fixed between the head and back limiting block and the buttock and leg limiting block. This helps to reduce the possibility of patient movement during the puncture and ensures the patient's safety.

[0008] After the puncture is completed, when changing from a lateral decubitus position to a supine position, the lifting frame lowers, causing the bed board to drop significantly. The head and back restraint blocks, upper body support blocks, hip and leg restraint blocks, and lower body support blocks rotate simultaneously, allowing the patient to lie on the head and back restraint blocks and hip and leg restraint blocks. This helps to avoid bleeding caused by twisting the patient's waist. After the bed board rises slightly, the bed board can be adjusted left and right. Medical staff assist the patient in removing the restraint mechanism, and the patient can lie flat in the center of the bed board. During this process, there will be no twisting of the waist. Subsequently, the patient can be moved left and right by moving the bed board left and right.

[0009] When a patient transitions from a left-side lying position to a supine position, the bed height decreases, which helps reduce the immediate impact of gravity on blood distribution. This allows the cardiovascular system more time to compensate and adjust, reducing the incidence of orthostatic hypotension. However, this relief from orthostatic hypotension is only temporary. If the patient remains still for an extended period after lying flat, lower limb veins will gradually congest, and blood pressure may slowly decrease. By using a bed board that can slide back and forth between two rails, this temporary protection can be extended into continuous protection, allowing the patient to maintain more stable blood pressure throughout the postoperative supine period. The periodic inertial force generated by the lateral movement continuously stimulates the patient's vestibular and proprioceptive receptors, maintaining the autonomic nervous system's ability to regulate vascular tone. This prevents lower limb veins from dilating and congesting due to prolonged stillness. Lower limb venous congestion leads to reduced venous return and a decrease in the amount of blood pumped from the heart to the lungs, resulting in decreased pulmonary blood flow and directly affecting gas exchange efficiency—a latent cause of respiratory distress. Therefore, using the bed board to move the patient laterally helps maintain a stable venous return, synergistically addressing both respiratory and circulatory issues.

[0010] Furthermore, each slide rail is equipped with two lead screws that rotate within it. One lead screw is threadedly connected to the head and back support frame, and the other lead screw is threadedly connected to the hip and leg support frame. The lead screw threaded to the hip and leg support frame is covered with a corrugated tube. Both ends of the corrugated tube are connected to the hip and leg support frame and the slide rail, respectively. A flexible tube is connected to the corrugated tube. An airbag is provided on the lower body support block. The flexible tube communicates with the airbag through the lower body support block.

[0011] The beneficial effects of this method are as follows: Since there is a gap between the abdomen and legs of the patient who is lying on their side during the puncture, the patient may instinctively dodge during the needle insertion process. The existence of this gap provides space for the patient's movements. Therefore, the airbag in this method can fill the gap after being gradually inflated to ensure the safety of the puncture.

[0012] Furthermore, the hip and leg support frame is vertically provided with several first wedges, and one end of the hip and leg limiting block is hinged to a footrest, and the footrest is provided with a second wedge that can cooperate with the inclined surface of the first wedge.

[0013] The beneficial effects of this solution are as follows: as the hip and leg limiting block rotates, it drives the footrest to rotate. During the process of the second wedge on the footrest contacting and separating from several first wedges on the hip and leg support frame, the patient's foot is placed on the footrest, which drives the patient's foot to rotate repeatedly around the ankle. This causes slight contraction of the lower limb muscles, promotes venous return, reduces congestion in the chest and abdominal cavities and organ compression, relaxes the body's tension, expands the chest cavity's space for movement, thereby relieving breathing difficulties, improving blood circulation, reducing limb numbness and restlessness, and improving postural tolerance.

[0014] Furthermore, a limit block is provided at one end of the guide rail.

[0015] Furthermore, extension plates are slidably provided at the other end of the hip and leg limiting block and at one end of the head and back limiting block.

[0016] Furthermore, both the upper and lower body support blocks are retractable.

[0017] Furthermore, the bed board is covered with a soft pad. Attached Figure Description

[0018] Figure 1 This is a three-dimensional diagram from one perspective of the present invention; Figure 2 This is a three-dimensional diagram from another perspective of the present invention; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the patient's lying position during lumbar puncture according to the present invention.

[0019] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings of the instruction manual include: bed board 1, lifting frame 2, guide rail 3, slide rail 4, head and back support frame 5, head and back limit block 6, upper body support block 7, hip and leg support frame 8, hip and leg limit block 9, lower body support block 10, corrugated pipe 11, airbag 12, first wedge block 13, footrest 14, second wedge block 15, extension plate 16. Detailed Implementation

[0020] Example The basic implementation examples are as follows: Figure 1-4 As shown, Figure 1 , 2The puncture device for neurological nursing shown includes a frame, a bed board 1, a lifting mechanism and a limiting mechanism. The lifting mechanism includes a lifting frame 2 on the frame and two guide rails 3 fixed on the lifting frame 2. The bed board 1 is slidably connected to the guide rails 3. The bed board 1 can be covered with a soft pad. The lifting frame 2 is a mature product of the scissor type. The bed board 1 is located below the limiting mechanism.

[0021] The limiting mechanism includes a head and back limiting unit, a hip and leg limiting unit, and a slide rail 4 unit. The slide rail 4 unit includes two slide rails 4 welded to the frame. The width of the bed board 1 and the length of the guide rail 3 are less than the distance between the two slide rails 4. A limiting block can be fixedly installed at the same end of each of the two guide rails 3. The head and back limiting unit includes a head and back support frame 5 that is slidably limited and movable along the slide rails 4 and fixed, a head and back limiting block 6 that is rotatably connected to the head and back support frame 5, and an upper body support block 7 that is perpendicular to and fixedly connected to the head and back limiting block 6. (The last sentence appears to be incomplete and possibly refers to a different mechanism.) The limiting unit includes a hip and leg support frame 8 that is slidably limited and can move along the slide rail 4 and is fixed, a hip and leg limiting block 9 that is rotatably connected to the hip and leg support frame 8, and a lower body support block 10 that is perpendicular to and fixedly connected to the hip and leg limiting block 9. Both the head and back support frame 5 and the hip and leg support frame 8 are equipped with motors. Both the head and back limiting block 6 and the hip and leg limiting block 9 are connected to the output shaft of the motors. Of course, the power can also be transmitted through a gear set to drive the head and back limiting block 6 and the hip and leg limiting block 9 to rotate. The hip and leg limiting block 9 and the head and back limiting block 6 rotate along the same axis.

[0022] Each slide rail 4 is divided into two spaces, and each slide rail 4 is equipped with two lead screws that rotate within it. Figure 2 The diagram illustrates the separation on one side (to show that the two lead screws are independent). One lead screw is threaded to the head and back support frame 5, and the other lead screw is threaded to the hip and leg support frame 8. Both lead screws are rotatably connected to the frame. A crank can be installed at the end of the lead screw to drive its rotation, or a servo motor can be installed at each end of the frame. A sprocket is fixed on the output shaft of the servo motor and at the end of the lead screw. The sprockets at one end of the frame are connected by a chain to realize the servo motor driving the lead screw to rotate. The lead screw threaded to the hip and leg support frame 8 is covered with a corrugated tube 11. Both ends of the corrugated tube 11 are connected to the hip and leg support frame 8 and the slide rail 4, respectively. A flexible tube (not shown in the figure) is connected to the corrugated tube 11. An airbag 12 is attached to the lower body support block 10. The flexible tube communicates with the airbag 12 through a channel opened inside the lower body support block 10. The flexible tube has extra space and does not affect the use of the device on the side of the bed board 1.

[0023] like Figure 2 , 3 As shown, three first wedge blocks 13 are vertically fixed on the hip and leg support frame 8. One end of the hip and leg limiting block 9 is hinged to a footrest 14 via a pin. A second wedge block 15, which can cooperate with the inclined surface of the first wedge blocks 13, is fixed on the footrest 14. During puncture, the patient... Figure 4The position shown is lying on your side. Figure 1 The upper body support block 7 and lower body support block 10 are used to fix the patient's lying position through the head and back limiting block 6 and the hip and leg limiting block 9.

[0024] like Figure 1 , 2 As shown, an extension plate 16 is slidably provided at the other end of the hip and leg limiting block 9 and at one end of the head and back limiting block 6. That is, after the extension plate 16 is pulled out, it can better support the puncture position during the patient's rotation. At the same time, the upper body support block 7 and the lower body support block 10 can also be made retractable by extension, which makes it easy to adjust the distance between the head and back limiting block 6 and the hip and leg limiting block 9 to better adapt to the use of different patients.

[0025] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A puncture device for neurological nursing, characterized in that: The device includes a frame, a bed board, a lifting mechanism, and a limiting mechanism. The lifting mechanism includes a lifting frame mounted on the frame and guide rails fixed to the lifting frame, with the bed board slidably connected to the guide rails. The limiting mechanism includes a head and back limiting unit, a hip and leg limiting unit, and a slide rail unit. The slide rail unit includes two slide rails connected to the frame, with the width of the bed board and the length of the guide rails being less than the distance between the two slide rails. The head and back limiting unit includes a head and back support frame slidably connected to the slide rails and fixed, a head and back limiting block rotatably connected to the head and back support frame, and an upper body support block perpendicularly connected to and fixedly connected to the head and back limiting block. The hip and leg limiting unit includes a hip and leg support frame slidably connected to the slide rails and fixedly connected, a hip and leg limiting block rotatably connected to the hip and leg support frame, and a lower body support block perpendicularly connected to and fixedly connected to the hip and leg limiting block, with the hip and leg limiting block and the head and back limiting block rotating along the same axis.

2. The puncture device for neurological nursing care according to claim 1, characterized in that: Each slide rail has two rotatable lead screws, one of which is threaded to the head and back support frame and the other is threaded to the hip and leg support frame. The lead screw threaded to the hip and leg support frame is covered with a corrugated tube. The two ends of the corrugated tube are connected to the hip and leg support frame and the slide rail, respectively. A flexible tube is connected to the corrugated tube. An airbag is provided on the lower body support block. The flexible tube is connected to the airbag through the lower body support block.

3. The puncture device for neurological nursing care according to claim 2, characterized in that: The hip and leg support frame is vertically provided with several first wedge blocks, and one end of the hip and leg limiting block is hinged to a footrest. The footrest is provided with a second wedge block that can cooperate with the inclined surface of the first wedge block.

4. The puncture device for neurological nursing care according to claim 3, characterized in that: A limit block is provided at one end of the guide rail.

5. The puncture device for neurological nursing care according to claim 4, characterized in that: Extension plates are slidably provided at the other end of the hip and leg limiting block and at one end of the head and back limiting block.

6. The puncture device for neurological nursing care according to claim 5, characterized in that: Both the upper and lower body support blocks are retractable.

7. The puncture device for neurological nursing care according to claim 6, characterized in that: The bed frame is covered with a soft pad.

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