Lumbar puncture auxiliary device for blood clinic

Abstract

The invention relates to the technical field of medical instruments, in particular to a lumbar puncture auxiliary device for blood clinic, which comprises a bed body, a base and a telescopic rod mounted on the base, a connecting plate is mounted at the top end of the telescopic rod, an air cylinder is mounted on the base, and the output end of the air cylinder is fixedly connected with the connecting plate; the moving part is installed on the connecting plate, a buffering part is installed on the moving part, and the moving part and the buffering part are used for positioning the back and the abdomen of the patient; the massage component is mounted on the moving component, and the massage component is used for massaging a patient; according to the scheme, through mutual cooperation of the moving part, the buffering part and other structures, accurate positioning of the back and the abdomen of the patient is facilitated, and therefore a doctor can conveniently conduct lumbar puncture operation; the requirements of different patients can be met.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a lumbar puncture auxiliary device for clinical use in blood testing. Background Technology

[0002] Lumbar puncture is a medical procedure used to diagnose a variety of diseases of the central nervous system, including inflammatory diseases, vascular diseases, spinal cord lesions, suspected intracranial space-occupying lesions, and neurological diseases of unknown diagnosis, such as pneumocephalus and myelography. In addition, lumbar puncture is also used for draining (decompressing) cerebrospinal fluid due to excessively high cerebrospinal fluid pressure and for injecting medication to treat central nervous system diseases.

[0003] Traditional lumbar puncture is largely considered a "blind procedure." Doctors rely on anatomical landmarks for the puncture, and the success rate is currently highly dependent on the surgeon's experience. In practice, the pain caused by the puncture triggers a subconscious reaction in the patient, increasing the risk. Furthermore, for obese, elderly, scoliotic, or unconscious patients who cannot cooperate, the difficulty of localization increases significantly, leading to a higher failure rate. Simultaneously, medical staff must remain by the patient's side throughout the procedure to assist with localization, undoubtedly adding to their workload.

[0004] Therefore, we propose a lumbar puncture assist device for clinical use in hematology. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for lumbar puncture in clinical hematology, which solves the problem of inconvenient patient positioning in existing lumbar puncture procedures, thus affecting the success rate of puncture, through the cooperation of moving parts, buffering parts and positioning parts.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lumbar puncture assist device for clinical hematology includes a bed and a base, and further includes: a telescopic rod mounted on the base, with a connecting plate mounted at the top of the telescopic rod; a cylinder mounted on the base, with the output end of the cylinder fixedly connected to the connecting plate; a movable component mounted on the connecting plate, with a buffer component mounted on the movable component, the movable component and the buffer component being used for positioning the patient's back and abdomen; the buffer component includes an air pump mounted on the connecting plate, with an air inlet pipe fixedly connected to the input end of the air pump and an air delivery pipe fixedly connected to the output end of the air pump, a connecting pipe installed outside the air delivery pipe, and an airbag installed outside the connecting pipe; a massage component mounted on the movable component, the massage component being used for massaging the patient; and a positioning component mounted on the bed, the positioning component being used to assist the movable component and the buffer component in positioning the patient's legs.

[0008] Preferably, the moving component includes a mounting box mounted on a connecting plate, a motor mounted on the outside of the mounting box, and a lead screw fixedly connected to the output end of the motor through the mounting box via a coupling, the lead screw being rotatably connected to the mounting box.

[0009] Preferably, the lead screw is symmetrically threaded with sliders on its exterior, and both sliders are slidably connected to the inner wall of the mounting box. A connecting seat is fixedly connected to the exterior of each slider.

[0010] Preferably, an electric push rod is installed on the outside of the connecting seat, and a bracket is fixedly connected to the output end of the electric push rod. The bracket is irregularly shaped.

[0011] Preferably, an elastic pressure bladder is fixedly connected to the bracket, and an anti-slip protrusion is fixedly connected to the outside of the elastic pressure bladder.

[0012] Preferably, the gas supply pipe is symmetrically equipped with elastic branch pipes on its exterior, and the two elastic branch pipes are respectively fixedly connected to and communicate with the elastic pressure bladder. Control valves are installed on the exterior of both the connecting pipe and the elastic branch pipes.

[0013] Preferably, the massage component includes a second electric push rod mounted on a bracket, and the output end of the second electric push rod is fixedly connected to a mounting plate.

[0014] Preferably, a motor is mounted on the outside of the mounting plate, and a massage ball is fixedly connected to the output end of the motor.

[0015] Preferably, the positioning component includes a bedside plate installed on the bed frame, a screw threadedly connected inside the bedside plate, a stop plate rotatably connected to one end of the screw, and a nut fixedly connected to the end of the screw away from the stop plate.

[0016] Preferably, a protective pad is installed on the outside of the support plate, and a sliding rod is fixedly connected to the outside of the support plate, the sliding rod being slidably connected to the bed frame.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This system incorporates moving and cushioning components. The coordinated operation of these components facilitates precise positioning of the patient's back and abdomen, making lumbar puncture easier for doctors. Simultaneously, the elastic compression bladder and airbag design effectively prevent excessive compression, improving patient comfort, reducing the workload of medical staff, and adapting to the needs of different patients.

[0019] 2. This solution is equipped with a massage component that uses a motor and massage rollers to massage the patient's back, which helps relax the muscles and further increases the probability of successful puncture.

[0020] 3. This solution is equipped with a positioning component. By rotating the nut, the support plate can be moved to facilitate positioning of the patient's feet. Combined with the buffer component, it can achieve comprehensive positioning of the patient's back, abdomen and feet, further improving the chances of successful puncture. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 This is a side view of the overall structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the buffer component structure of the present invention;

[0025] Figure 5 This is a front view of the overall structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the moving component structure of the present invention;

[0027] Figure 7 This is a front sectional view of the moving component of the present invention;

[0028] Figure 8 This is a side view of the buffer component of the present invention;

[0029] The components represented by each number in the attached diagram are listed below: 1. Bed frame; 2. Base; 3. Telescopic rod; 4. Connecting plate; 5. Cylinder; 6. Moving component; 7. Buffer component; 8. Massage component; 9. Positioning component; 10. Mounting box; 11. Motor; 12. Lead screw; 13. Slider; 14. Connecting seat; 15. Electric push rod one; 16. Bracket; 17. Elastic pressure bladder; 18. Anti-slip protrusion; 19. Air pump; 20. Air inlet pipe; 21. Air delivery pipe; 22. Connecting pipe; 23. Air bladder; 24. Elastic branch pipe; 25. Control valve; 26. Electric push rod two; 27. Mounting plate; 28. Motor; 29. ​​Massage ball; 30. Bed side plate; 31. Screw; 32. Support plate; 33. Slide rod; 34. Nut; 35. Protective pad. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Example 1: As Figure 1 - Figure 8 As shown in the diagram, a lumbar puncture assistive device for clinical hematology includes a bed 1 and a base 2. The base 2 is made of high-strength stainless steel and has an anti-slip pad on the bottom to effectively enhance the overall stability of the device and prevent shaking during puncture. It also includes a telescopic rod 3 mounted on the base 2. The telescopic rod 3 is made of high-strength aluminum alloy, which is lightweight, has a high load-bearing capacity, and is corrosion-resistant. A connecting plate 4 is mounted at the top of the telescopic rod 3. The connecting plate 4 is made of wear-resistant alloy steel plate with a polished surface to reduce friction loss during component sliding. A cylinder 5 is mounted on the base 2. The output end of the cylinder 5 is fixedly connected to the connecting plate 4 with bolts. During operation, medical staff can set the lifting height through the control panel. The cylinder 5 drives the piston rod to extend and retract, causing the connecting plate 4 and the components mounted above it to rise and fall synchronously. The telescopic rod 3 extends and retracts axially to guide the movement, ensuring that the connecting plate 4 remains horizontal during the lifting process. This allows for precise adjustment of the height of the patient's puncture site, adapting to the operating habits and puncture needs of medical staff of different heights.

[0032] In addition, a movable component 6 is installed on the connecting plate 4, and a buffer component 7 is installed on the movable component 6. The movable component 6 and the buffer component 7 are used to position the patient's back and abdomen. The buffer component 7 includes an air pump 19 installed on the connecting plate 4. The air pump 19 is a miniature silent air pump with a noise level of less than 40 decibels during operation, which can reduce interference to the patient. An air inlet pipe 20 is fixedly connected to the input end of the air pump 19. An air filter is installed at the end of the air inlet pipe 20 to filter impurities in the air and prevent impurities from entering the air passage and causing blockage. An air delivery pipe 21 is fixedly connected to the output end of the air pump 19 through a three-way connector. The air delivery pipe 21 is made of medical-grade polyurethane tubing with good aging resistance and pressure resistance. A connecting pipe 22 is installed on the outside of the air delivery pipe 21 through a quick-connect connector. An air bladder 23 is installed on the outside of the connecting pipe 22. The air bladder 23 is made of double-layer medical PVC material with high strength and sealing performance, and is not easy to leak air. The air bladder 23 is installed on the side close to the patient's abdomen and forms a double buffer structure with the elastic pressure bladder 17. In addition, a massage component 8 is installed on the moving component 6, which is used to massage the patient; and a positioning component 9 is installed on the bed 1, which is used to assist the moving component 6 and the cushioning component 7 in positioning the patient's legs.

[0033] Specifically, the moving part 6 includes a mounting box 10 mounted on the connecting plate 4. The mounting box 10 is made of engineering plastic, which is lightweight and has good impact resistance. The mounting box 10 has a control panel on the outside, with function buttons for position adjustment, pressure setting, etc., making operation intuitive and convenient. A motor 11 is mounted on the outside of the mounting box 10. The motor 11 is a servo motor, which has the characteristics of stable speed, high positioning accuracy and fast response speed. The output end of the motor 11 is fixedly connected to a lead screw 12 through the mounting box 10 via a coupling. The two ends of the lead screw 12 are rotatably connected to the inner wall of the mounting box 10 through bearings to ensure that there is no radial offset during the rotation of the lead screw 12.

[0034] Furthermore, the lead screw 12 is symmetrically threaded with sliders 13. Both sliders 13 are slidably connected to the inner wall of the mounting box 10. The inner wall of the slider 13 is provided with an internal thread that matches the lead screw 12. The two sides of the slider 13 are slidably connected to the guide grooves on the inner wall of the mounting box 10. The guide grooves can restrict the slider 13 from rotating with the lead screw 12, so that the slider 13 can only move relative to or towards each other along the axial direction of the lead screw 12. The slider 13 is fixedly connected to a connecting seat 14. The connecting seat 14 is made of alloy material to enhance the structural strength of the connection with subsequent components.

[0035] Specifically, please refer to Figure 2The connecting seat 14 is externally mounted with an electric push rod 15. The electric push rod 15 is an electro-hydraulic push rod, which has the advantages of stable thrust and precise stroke adjustment. The output end of the electric push rod 15 is fixedly connected to a bracket 16. The bracket 16 is irregularly shaped and forged from titanium alloy. It can fit the physiological curves of the human back and abdomen in conjunction with the electric push rod 15 to ensure comfort and stability during positioning.

[0036] In addition, an elastic pressure bag 17 is fixedly connected to the support 16. The elastic pressure bag 17 is made of medical-grade silicone material, which has good elasticity and biocompatibility and will not irritate the patient's skin. The elastic pressure bag 17 is externally fixedly connected to anti-slip protrusions 18. The anti-slip protrusions 18 are hemispherically and evenly distributed, which can increase the friction with the patient's body, prevent the patient's body from shifting after positioning, and further improve positioning stability.

[0037] Furthermore, two elastic branch pipes 24 are symmetrically installed on the outside of the gas supply pipe 21. The two elastic branch pipes 24 are fixedly connected to and communicate with the elastic pressure bladder 17, so that the elastic pressure bladder 17 and the air bladder 23 can be synchronously inflated or deflated. Control valves 25 are installed on the outside of the connecting pipe 22 and the elastic branch pipes 24. The control valves 25 are electromagnetic control valves. The opening and closing of each gas passage and the inflation volume can be precisely controlled through the control panel, thereby adjusting the expansion degree of the elastic pressure bladder 17 and the air bladder 23 and achieving precise pressure control.

[0038] During positioning, the motor 11 first drives the lead screw 12 to rotate, causing the two sliders 13 to move the support 16 to a position corresponding to the patient's back and abdomen. Then, the electric push rod 15 pushes the support 16 closer to the patient's body until the elastic pressure bladder 17 makes slight contact with the patient's skin. Next, the air pump 19 starts, inflating the air bladder 23 and elastic pressure bladder 17 through the air supply tube 21. Medical staff observe the pressure display value on the control panel. When the pressure reaches the preset value, the control valve 25 closes, maintaining pressure in the air circuit. This flexible positioning method allows the elastic pressure bladder 17 and air bladder 23 to fully conform to the patient's body curves, avoiding excessive local pressure that could cause discomfort. Furthermore, pressure adjustment accommodates the needs of patients of different body types, ensuring positioning stability while improving patient comfort and reducing the workload of manual positioning for medical staff.

[0039] Example 2: Figure 1 - Figure 8As shown, this is a further description of Embodiment 1. In this embodiment, the massage component 8 is used to massage and relax the patient's back muscles before puncture, relieve the patient's tension, relax the muscle tissue, create good conditions for the puncture operation, and further improve the probability of successful puncture. The massage component 8 includes an electric push rod 26 mounted on the bracket 16. The electric push rod 26 is a small electric push rod with the characteristics of small size, short stroke and stable operation. The output end of the electric push rod 26 is fixedly connected to the mounting plate 27. The mounting plate 27 is made of lightweight alloy plate, which can reduce the load on the electric push rod 26.

[0040] Specifically, a motor 28 is installed on the outside of the mounting plate 27. The motor 28 is a miniature DC motor with a speed set at 60-120 revolutions per minute. It runs smoothly without significant vibration. The output end of the motor 28 is fixedly connected to a massage ball 29. The massage ball 29 is made of medical-grade silicone material encasing a hard core. Its surface is smooth and rounded, and it will not cause scratches to the patient's skin. The massage of the patient's back by the motor 28 and the massage ball 29 helps to relax the muscles and further improve the probability of successful puncture.

[0041] During operation, medical staff activate the massage function via the control panel. The electric push rod 26 pushes the mounting plate 27 to bring the massage ball 29 into contact with the patient's back, and adjusts the contact pressure according to the patient's feelings. Subsequently, the motor 28 drives the massage ball 29 to rotate, performing rolling massage on the patient's back muscles, promoting local blood circulation, relieving muscle tension, and keeping the patient relaxed before puncture, reducing the risk of puncture difficulties due to muscle stiffness.

[0042] Furthermore, the positioning component 9 includes bedside plates 30 that are fixedly installed on both sides of the bed frame 1 by welding. The bedside plates 30 are made of stainless steel and have sufficient structural strength. The bedside plates 30 have threaded holes machined inside and screws 31 are threaded inside the bedside plates 30. The screws 31 are made of high-strength alloy steel and have been treated with anti-rust. One end of the screws 31 is rotatably connected to a stop plate 32, and the end of the screws 31 away from the stop plate 32 is fixedly connected to a nut 34.

[0043] For further details, please refer to Figure 2 and Figure 4 The support plate 32 is equipped with a protective pad 35, which is a medical sponge pad. The sponge pad is wrapped with breathable non-woven fabric, which can ensure the stability during positioning and improve the comfort of the patient's legs, avoiding pressure marks caused by long-term positioning. The support plate 32 is fixedly connected to a slide rod 33, which is slidably connected to the bed 1. The slide rod 33 is used to limit the position of the support plate 32.

[0044] Rotating the nuts 34 on both sides causes the screw 31 to move axially along the threaded hole of the bedside plate 30, thereby pushing the abutment 32 closer to the patient's legs until the abutment 32 gently contacts the patient's legs, thus fixing the patient's legs in place. This adjustment method is simple and convenient to operate, can adapt to different patient needs, and combined with the positioning of the back and abdomen by the buffer component 7, forms a comprehensive positioning system, ensuring that the patient's body remains stable during the puncture process, providing strong support for the doctor's accurate puncture.

[0045] In summary, when using this device, after startup, the initial position and height are first adjusted. Medical staff assist the patient to lie on their side on bed 1. Based on the patient's body shape and puncture site requirements, the lifting parameters are set through the control panel. Cylinder 5 drives the piston rod to extend and retract, causing the connecting plate 4 and the upper moving parts 6 and buffer parts 7 to rise and fall synchronously. The telescopic rod 3 guides along the axial direction, allowing the positioning mechanism to accurately align with the patient's back and abdominal area. Simultaneously, the motor 11 outside the mounting box 10 drives the lead screw 12 to rotate. The lead screw 12 drives the two sliders 13 to move relative to each other along the guide groove on the inner wall of the mounting box 10, thereby adjusting the bracket 16 on the slider 13 to an initial position that matches the width of the patient's back and abdomen, preparing for subsequent positioning.

[0046] Next, a comprehensive positioning and muscle relaxation procedure is performed. During the positioning phase, the electric push rod 15 pushes the support 16 slowly closer to the patient's body until the elastic pressure bladder 17 makes slight contact with the patient's back skin and then stops. Subsequently, the air pump 19 is activated, drawing in filtered air through the air inlet tube 20 and inflating the air bladder 23 and elastic pressure bladder 17 through the air delivery tube 21. Medical staff monitor the pressure data in real time through the control panel. When the pressure reaches the preset safety value, the control valve 25 closes to maintain air pressure, and the elastic pressure bladder 17 and air bladder 23 conform to the curve of the human body to complete the flexible positioning. At the same time, the massage component 8 is activated, and the electric push rod 26 pushes the mounting plate 27 to make the massage ball 29 contact the patient's back. The motor 28 drives the massage ball 29 to rotate and perform rolling massage, relaxing muscles and relieving the patient's tension.

[0047] Finally, leg positioning is completed in conjunction with the puncture procedure. Medical staff rotate the nut 34 on the bedside plate 30. The nut 34 drives the screw 31 to move axially along the threaded hole, causing the abutment 32 to slowly approach the patient's leg until it gently contacts the leg, achieving leg positioning and fixation, thus providing comprehensive fixation of the back, abdomen, and legs. During the puncture, if the operating height needs adjustment, the cylinder 5 can be restarted via the control panel for fine-tuning. After the puncture is completed, the control valve 25 is opened sequentially to release the air pressure, and the motor 11 and nut 34 are rotated in the reverse direction to reset all components. The device is then closed to complete the entire procedure.

[0048] The above description shows and illustrates the basic principles, main features, and advantages of the present invention. Standard parts used in the present invention can be purchased from the market, and irregular parts can be customized according to the accompanying drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0049] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A lumbar puncture auxiliary device for blood clinical use, comprising a bed body (1) and a base (2); characterized in that Further comprising: a telescopic rod (3) mounted on the base (2), a connecting plate (4) being mounted at the top end of the telescopic rod (3), a pneumatic cylinder (5) being mounted on the base (2), and the output end of the pneumatic cylinder (5) being fixedly connected with the connecting plate (4); and a moving part (6) mounted on the connecting plate (4), a buffer part (7) being mounted on the moving part (6), the moving part (6) and the buffer part (7) being used for positioning the back and abdomen of a patient; the buffer part (7) comprising a gas pump (19) mounted on the connecting plate (4), an air inlet pipe (20) being fixedly connected with the input end of the gas pump (19), a gas outlet pipe (21) being fixedly connected with the output end of the gas pump (19), a connecting pipe (22) being mounted outside the gas outlet pipe (21), and an air bag (23) being mounted outside the connecting pipe (22); and a massage part (8) mounted on the moving part (6), the massage part (8) being used for massaging a patient; and a positioning part (9) mounted on the bed body (1), the positioning part (9) being used for assisting the moving part (6) and the buffer part (7) to position the legs of a patient.

2. The lumbar puncture assisting device for blood clinical use according to claim 1, characterized in that: The moving part (6) comprises a mounting box (10) mounted on the connecting plate (4), a motor (11) being mounted outside the mounting box (10), a lead screw (12) being fixedly connected with the output end of the motor (11) through a shaft coupling and penetrating the mounting box (10), and the lead screw (12) being rotatably connected with the mounting box (10).

3. The device for assisting lumbar puncture in blood clinical use according to claim 2, characterized in that: Symmetrical slide blocks (13) are connected with the outside of the lead screw (12), both of the slide blocks (13) are slidably connected with the inner wall of the mounting box (10), and a connecting seat (14) is fixedly connected with the outside of each slide block (13).

4. The device for assisting lumbar puncture in blood clinical use according to claim 3, characterized in that: An electric push rod one (15) is mounted outside the connecting seat (14), a support (16) is fixedly connected with the output end of the electric push rod one (15), and the support (16) is shaped irregularly.

5. The device for assisting lumbar puncture in blood clinical use according to claim 4, characterized in that: An elastic pressing bag (17) is fixedly connected with the support (16), and an anti-skid protrusion (18) is fixedly connected with the outside of the elastic pressing bag (17).

6. The device for assisting lumbar puncture in blood clinical use according to claim 1, characterized in that: Symmetrical elastic branch pipes (24) are mounted outside the gas outlet pipe (21), both of the elastic branch pipes (24) are fixedly connected with the elastic pressing bag (17) and communicate with each other, and control valves (25) are mounted outside the connecting pipe (22) and the elastic branch pipes (24).

7. The device for assisting lumbar puncture in blood clinic according to claim 4, wherein: The massage part (8) comprises an electric push rod two (26) mounted on the support (16), and an installation plate (27) is fixedly connected with the output end of the electric push rod two (26).

8. The device for assisting lumbar puncture in blood clinical use according to claim 7, characterized in that: A motor (28) is mounted outside the installation plate (27), and massage balls (29) are fixedly connected with the output end of the motor (28).

9. The device for assisting lumbar puncture in blood clinical use according to claim 1, characterized in that: The positioning component (9) comprises a bedside plate (30) installed on the bed body (1), a screw rod (31) is screw-connected inside the bedside plate (30), one end of the screw rod (31) is rotationally connected with an abutting plate (32), and the screw rod (31) is fixedly connected with a screw cap (34) at an end away from the abutting plate (32).

10. The device for assisting lumbar puncture in blood clinical use according to claim 9, wherein: A protective pad (35) is installed outside the abutting plate (32), the abutting plate (32) is fixedly connected with a sliding rod (33) outside, and the sliding rod (33) is slidingly connected with the bed body (1).

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