Preoperative eye washing device
By designing an automated preoperative eyewash device, which utilizes a liquid dispensing motor-driven squeezing plate and an adjustable water receiving arm, the problem of cumbersome and inefficient preoperative eyewash procedures for ophthalmic surgery patients has been solved, thereby improving the quality of eyewash and patient comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 许文言
- Filing Date
- 2025-02-26
- Publication Date
- 2026-06-30
Smart Images

Figure CN224421504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a preoperative eyewash device. Background Technology
[0002] Before eye surgery, patients need to have their eyes cleaned and disinfected, a process commonly known as "eye washing." This is to remove necrotic tissue around the eye, remove foreign objects from the conjunctival sac, remove acidic or alkaline chemicals from the conjunctival sac, and clean the conjunctival sac, among other things. Currently, common hospital practices include:
[0003] 1. The patient holds the water receiver, and the nurse holds a cotton swab in one hand and a bottle of saline solution in the other to pour into the patient's eyes to clean them. After cleaning, the waste liquid in the water receiver should be poured out.
[0004] 2. The patient holds the water receiver, and the nurse holds a cotton swab in one hand and the outlet of the IV tubing in the other hand to spray the fluid into the patient's eyes for cleaning. The IV tubing is connected to a bottled or soft-packaged saline solution hanging in the tubing.
[0005] 3. Use facilities similar to eyewash chairs to secure the water receiver. The nurse holds a cotton swab in one hand and the outlet of the IV tubing in the other to spray the fluid into the patient's eyes for cleaning. The IV tubing is connected to a hanging bottle or soft package of normal saline.
[0006] Disadvantages of existing technology:
[0007] 1. Patients need to hold the water receiver. Since most patients undergoing eye surgery are elderly, and the elderly have poor eyesight and are not dexterous, their lack of cooperation or poor execution greatly reduces the efficiency and quality of the eye washing process.
[0008] 2. The process of repeatedly handling and placing bottles of saline solution is cumbersome and inefficient, and it also requires a special platform to place the saline bottles, which adds pressure to the already limited space around the patients.
[0009] 3. Because the water receiver cannot automatically drain the liquid, the waste liquid in the water receiver needs to be emptied frequently, which increases the workload for nurses and reduces the efficiency of eye washing.
[0010] 4. Hanging a saline bag and draining it through an IV line for eye washing solves the problem of nurses frequently needing to handle the saline solution, but it also has many shortcomings. For example, the pressure and flow rate are highest when a new saline bag is used, and the water pressure gradually decreases as the washing solution is consumed. Too much water pressure can cause discomfort to the patient, while too little water pressure cannot achieve a good washing effect. Therefore, improvement and optimization are needed.
[0011] To address the above shortcomings, this design provides a preoperative eye-washing device to solve problems such as cumbersome operation, low work efficiency, poor washing effect, and patient discomfort during preoperative eye washing for ophthalmic surgery patients. Utility Model Content
[0012] The technical problem to be solved by this utility model is to provide a preoperative eye washing device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0013] The solution to the technical problem of this utility model is:
[0014] Preoperative eye washing device, including:
[0015] Seats;
[0016] A water-receiving arm is provided on one side of the seat. The water-receiving arm has a water-receiving mounting end and a connecting end. The connecting end is connected to the seat, and the position of the water-receiving mounting end is adjustable.
[0017] A water receiver, which is installed at the water receiving installation end.
[0018] As a further improvement to the above technical solution, a liquid dispensing component is also included, the liquid dispensing component comprising:
[0019] Discharge tube;
[0020] The liquid dispensing mechanism places a cleaning liquid bag and squeezes the cleaning liquid bag to make the cleaning liquid in the cleaning liquid bag flow out from the liquid dispensing pipe.
[0021] As a further improvement to the above technical solution, the liquid dispensing mechanism includes:
[0022] A liquid outlet mounting shell is installed on the seat, and the liquid outlet mounting shell is provided with a compression space;
[0023] A liquid dispensing motor is fixedly installed in the liquid dispensing mounting housing;
[0024] A lead screw, which is connected to the output end of the liquid outlet motor;
[0025] A nut is threadedly connected to the lead screw; when the lead screw rotates, it causes the nut to move closer to or away from the inner side of the compression space.
[0026] An extrusion plate, which is fixedly connected to the nut.
[0027] As a further improvement to the above technical solution, the liquid dispensing mechanism also includes multiple liquid dispensing position buttons, which are signal-connected to the liquid dispensing motor, and the multiple liquid dispensing position buttons are used to adjust the speed of the liquid dispensing motor.
[0028] As a further improvement to the above technical solution, the seat includes a seat body and a backrest, the seat body and the backrest are hinged together, and the angle between the backrest and the seat body is adjustable.
[0029] As a further improvement to the above technical solution, a support telescopic rod is provided between the seat body and the backrest, and the two ends of the support telescopic rod are respectively hinged to the seat body and the backrest.
[0030] As a further improvement to the above technical solution, the seat is equipped with a waste liquid tank, the water receiver is connected to a guide pipe, and the lower end of the guide pipe is located inside the waste liquid tank.
[0031] As a further improvement to the above technical solution, the water-receiving arm includes:
[0032] A connector, which is fixedly installed on the seat;
[0033] Two connecting arms are provided with an arm rotation axis. The two connecting arms are hinged to each other and rotate around the arm rotation axis. One of the connecting arms is hinged to the connecting body.
[0034] Two locking structures are respectively disposed between the connecting body and the connecting arm, and between the two connecting arms; each locking structure includes:
[0035] The locking rack has an arc structure and is concentrically arranged with the arm body rotation axis;
[0036] Locking teeth are used to engage with the tooth grooves of the locking rack to lock the connecting arm.
[0037] A toothed drive device is used to drive the locking toothed teeth to move closer to or away from the locking rack.
[0038] As a further improvement to the above technical solution, the gear-shaping drive device is an electromagnetic push rod.
[0039] As a further improvement to the above technical solution, a control foot pedal is also included. The control foot pedal is signal-connected to the gear drive device. When the control foot pedal is pressed down, the gear drive device drives the locking gear to move away from the locking rack.
[0040] The beneficial effects of this utility model are: by using a water receiving arm to support the water receiver, medical staff or patients do not need to hold the water receiver for a long time, thereby reducing the workload of medical staff and reducing the discomfort of patients.
[0041] This utility model is applicable to the field of furniture technology. Attached Figure Description
[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of this utility model, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.
[0043] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0044] Figure 2 This is a schematic diagram of the overall structure of the liquid outlet component according to an embodiment of the present invention;
[0045] Figure 3 This is a schematic diagram of the overall structure of the water receiving arm according to an embodiment of the present invention (the tooth structure of the locking rack is not shown in the figure).
[0046] In the diagram, 100 is the seat; 110 is the seat body; 111 is the armrest; 112 is the IV stand; 113 is the waste liquid tank; 120 is the backrest; 130 is the support telescopic rod; 200 is the water receiving arm; 201 is the connecting end; 202 is the water receiving installation end; 210 is the connector; 220 is the connecting arm body; 230 is the locking structure; 231 is the locking rack; 232 is the locking pinion; 233 is the pinion drive device; 34. Control foot pedal; 300. Water receiver; 310. Flow guide pipe; 400. Liquid dispensing assembly; 410. Liquid dispensing pipe; 420. Liquid dispensing mechanism; 421. Liquid dispensing mounting housing; 422. Liquid dispensing motor; 423. Lead screw; 424. Fixing base; 425. Squeezing plate; 426. Liquid dispensing stop button; 428. Nut; 510. Electromagnetic generator; 520. Magnetic core; 530. Spring; 540. Stop block. Detailed Implementation
[0047] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this invention can be combined interactively without contradicting each other.
[0048] Before eye surgery, patients need to have their eyes cleaned and disinfected, a process commonly known as "eye washing." This is to remove necrotic tissue around the eye, remove foreign objects from the conjunctival sac, remove acidic or alkaline chemicals from the conjunctival sac, and clean the conjunctival sac, among other things. Currently, common hospital practices include:
[0049] 1. The patient holds the water receiver, and the nurse holds a cotton swab in one hand and a bottle of saline solution in the other to pour into the patient's eyes to clean them. After cleaning, the waste liquid in the water receiver should be poured out.
[0050] 2. The patient holds the water receiver, and the nurse holds a cotton swab in one hand and the outlet of the IV tubing in the other hand to spray the fluid into the patient's eyes for cleaning. The IV tubing is connected to a bottled or soft-packaged saline solution hanging in the tubing.
[0051] 3. Use facilities similar to eyewash chairs to secure the water receiver. The nurse holds a cotton swab in one hand and the outlet of the IV tubing in the other to spray the fluid into the patient's eyes for cleaning. The IV tubing is connected to a hanging bottle or soft package of normal saline.
[0052] Disadvantages of existing technology:
[0053] 1. Patients need to hold the water receiver. Since most patients undergoing eye surgery are elderly, and the elderly have poor eyesight and are not dexterous, their lack of cooperation or poor execution greatly reduces the efficiency and quality of the eye washing process.
[0054] 2. The process of repeatedly handling and placing bottles of saline solution is cumbersome and inefficient, and it also requires a special platform to place the saline bottles, which adds pressure to the already limited space around the patients.
[0055] 3. Because the water receiver cannot automatically drain the liquid, the waste liquid in the water receiver needs to be emptied frequently, which increases the workload for nurses and reduces the efficiency of eye washing.
[0056] 4. Hanging a saline bag and draining it through an IV line for eye washing solves the problem of nurses frequently needing to handle the saline solution, but it also has many shortcomings. For example, the pressure and flow rate are highest when a new saline bag is used, and the water pressure gradually decreases as the washing solution is consumed. Too much water pressure can cause discomfort to the patient, while too little water pressure cannot achieve a good washing effect. Therefore, improvement and optimization are needed.
[0057] To address the above shortcomings, this design provides a preoperative eye-washing device to solve problems such as cumbersome operation, low work efficiency, poor washing effect, and patient discomfort during preoperative eye washing for ophthalmic surgery patients.
[0058] Reference Figures 1 to 3 The preoperative eye washing device includes a seat 100, a water receiving arm 200, a water receiver 300, and a liquid dispensing assembly 400.
[0059] Specifically, in this embodiment, the seat 100 includes a seat 100 body and a backrest 120.
[0060] The lower end of the backrest 120 is hinged to the main body of the seat 100. A support telescopic rod 130 is provided between the main body of the seat 100 and the backrest 120, with both ends of the support telescopic rod 130 hinged to the main body of the seat 100 and the backrest 120, respectively. The support telescopic rod 130 is configured as an electrically telescopic structure. In other embodiments, the support telescopic rod 130 can also be configured as a manually operated screw-type telescopic rod structure. Those skilled in the art can select the specific structure of the support telescopic rod 130 according to actual needs.
[0061] Specifically, in this embodiment, the seat 100 is equipped with a waste liquid tank 113.
[0062] Specifically, in this embodiment, armrests 111 are provided on both sides of the main body of the seat 100. The seat 100 is also fixed with an IV stand 112.
[0063] Specifically, in this embodiment, the water receiving arm 200 and the liquid discharging assembly 400 are respectively disposed on both sides of the seat 100.
[0064] Specifically, in this embodiment, a headrest is installed at the upper end of the backrest 120.
[0065] The liquid dispensing assembly 400 includes: a liquid dispensing pipe 410 and a liquid dispensing mechanism 420.
[0066] The liquid dispensing mechanism 420 includes a liquid dispensing mounting housing 421, a liquid dispensing motor 422, a lead screw 423, a fixed base 424, and a squeezing plate 425.
[0067] The liquid outlet mounting housing 421 is fixedly installed on the upper end of the backrest 120. The liquid outlet mounting housing 421 is provided with a compression space.
[0068] The liquid discharge motor 422 is fixedly installed on the liquid discharge mounting housing 421.
[0069] The lead screw 423 is rotatably connected to the liquid outlet mounting housing 421. A gear set is provided between the lead screw 423 and the output end of the liquid outlet motor 422. The gear set is used to transmit the power of the liquid outlet motor 422 to the lead screw 423. In this embodiment, the gear set is a reduction gear set so that the lead screw 423 rotates at a slower speed.
[0070] The mounting base 424 is fixedly installed on the liquid outlet mounting shell 421.
[0071] Nut 428 is threadedly connected to lead screw 423. Extrusion plate 425 is fixedly connected to nut 428. When lead screw 423 rotates, nut 428 and extrusion plate 425 will move closer to or further away from the inner side of the extrusion space. Nut 428 passes through fixed seat 424 and is slidably connected to fixed seat 424. Fixed seat 424 serves to support nut 428.
[0072] The cleaning fluid bag is placed in the compression space, and the outlet of the cleaning fluid bag is connected to the outlet pipe 410, which passes around the lower end of the infusion stand 112.
[0073] When the lead screw 423 rotates relative to the fixed base 424, the screw 423 is threadedly connected to the nut 428, causing the nut 428 and the pressure plate 425 to move linearly relative to the fixed base 424. This causes the pressure plate 425 to move closer to or further away from the inner side of the pressure space. When the pressure plate 425 moves closer to the inner side of the pressure space, it squeezes the cleaning fluid bag placed inside the pressure space, squeezing out the cleaning fluid, which then flows out from the outlet pipe 410 to clean the patient's eyes.
[0074] Specifically, in this embodiment, the liquid dispensing mechanism 420 further includes multiple liquid dispensing position buttons 426. The liquid dispensing position buttons 426 are connected to the liquid dispensing motor 422 via a microcontroller signal. The multiple liquid dispensing position buttons 426 can adjust the rotation speed of the liquid dispensing motor 422 so that the squeezing plate 425 squeezes the cleaning liquid bag at different speeds, thereby adjusting the outflow speed of the cleaning liquid.
[0075] The water receiving arm 200 is provided with a connecting end 201 and a water receiving installation end 202. The connecting end 201 is connected to the seat 100, and the water receiver 300 is installed at the water receiving installation end 202. The water receiver 300 is connected to a guide pipe 310, the lower end of which is located inside a waste liquid tank 113. The waste liquid tank 113 can collect the waste liquid flowing down from the water receiver 300, thereby avoiding medical staff from frequently emptying the waste liquid in the water receiver 300, thus reducing the workload of medical staff and effectively improving the efficiency of eye washing.
[0076] Specifically, in this embodiment, the water receiving arm 200 includes a connecting body 210, a connecting arm body 220, and a locking structure 230.
[0077] The connector 210 is fixedly installed on the upper end of the backrest 120. In other embodiments, the connector 210 and the backrest 120 can also be configured to be rotatably connected to increase the degree of freedom of movement of the water receiving arm 200 and make the position of the water receiving mounting end 202 adjustable.
[0078] Two connecting arms 220 are provided. Each connecting arm 220 has a rotating shaft at its end, allowing it to rotate around the shaft. One connecting arm 220 is hinged to the connecting body 210, and the two connecting arms 220 are hinged to each other. By dividing the water-receiving arm 200 into multiple movable segments, the degree of freedom of movement of the water-receiving arm 200 can be increased. The two connecting arms 220 are respectively designated as a first rotating arm and a second rotating arm. The first rotating arm is hinged to the connecting body 210, and the second rotating arm is hinged to the first rotating arm.
[0079] The number of locking structures 230 is set to two, and the two locking structures 230 are respectively set as the first locking position and the second locking position. The first locking position is set between the connecting arm body 220 and the connecting body 210, and the second locking position is set between the two connecting arm bodies 220.
[0080] Specifically, in this embodiment, the locking structure 230 includes: a locking rack 231, a locking tooth 232, and a tooth driving device 233.
[0081] The locking rack 231 has an arc-shaped structure, with the center of the arc located on the arm's rotation axis. The toothed structure of the locking rack 231 is located on the inner side of the arc. In other embodiments, the toothed structure can also be located on the outer side of the arc of the locking rack 231. Those skilled in the art can select the position of the toothed structure of the locking rack 231 according to actual needs.
[0082] The locking teeth 232 of the first locking position are slidably connected to the connecting body 210, and the locking teeth 232 of the second locking position are slidably connected to the first rotating arm.
[0083] The first locking tooth drive device 233 is fixedly installed on the connecting body 210, and the second locking tooth drive device 233 is fixedly installed on the first rotating arm. The output end of the tooth drive device 233 is fixed to the locking tooth 232, and the tooth drive device 233 drives the locking tooth 232 to move closer to or away from the locking rack 231.
[0084] Specifically, in this embodiment, the tooth-shaping drive device 233 is configured as an electromagnetic push rod. In other embodiments, the tooth-shaping drive device 233 includes: an electromagnetic generator 510, a magnetic core 520, a spring 530, and a stop block 540. The electromagnetic generator 510 is used to attract the magnetic core 520, bringing the magnetic core 520 closer to the electromagnetic generator 510. The stop block 540 is fixedly connected to the end of the magnetic core 520 away from the electromagnetic generator 510. The spring 530 is disposed between the electromagnetic generator 510 and the stop block 540. The spring 530 causes the stop block 540 to always tend to move away from the electromagnetic generator 510, thereby driving the magnetic core 520 and the locking tooth 232 away from the electromagnetic generator 510, so that the locking tooth 232 remains engaged with the locking rack 231, thereby limiting the swing of the connecting arm 220.
[0085] Specifically, in this embodiment, a control foot pedal 234 is also included. The control foot pedal 234 is placed on the ground and is connected to the tooth drive device 233 via a microcontroller. When the control foot pedal 234 is stepped on, the tooth drive device 233 drives the locking tooth 232 away from the locking rack 231, thereby releasing the restriction on the rotation of the connecting arm 220. Subsequently, medical personnel can adjust the connecting arm 220 so that the water receiver 300 moves to a suitable position. After the water receiving installation end 202 moves to a suitable position, the medical personnel release the control foot pedal 234, and the locking tooth 232 cooperates with the locking rack 231 to lock the connecting arm 220.
[0086] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.
Claims
1. A preoperative eye washing device, characterized in that: include: Seats; A water-receiving arm is provided on one side of the seat. The water-receiving arm has a water-receiving mounting end and a connecting end. The connecting end is connected to the seat, and the position of the water-receiving mounting end is adjustable. A water receiver, which is installed at the water receiving installation end.
2. The preoperative eyewash device according to claim 1, characterized in that: It also includes a liquid dispensing assembly, which comprises: Discharge tube; The liquid dispensing mechanism places a cleaning liquid bag and squeezes the cleaning liquid bag to make the cleaning liquid in the cleaning liquid bag flow out from the liquid dispensing pipe.
3. The preoperative eyewash device according to claim 2, characterized in that: The liquid dispensing mechanism includes: A liquid outlet mounting shell is installed on the seat, and the liquid outlet mounting shell is provided with a compression space; A liquid dispensing motor is fixedly installed in the liquid dispensing mounting housing; A lead screw, which is connected to the output end of the liquid outlet motor; A nut is threadedly connected to the lead screw; when the lead screw rotates, it causes the nut to move closer to or away from the inner side of the compression space. An extrusion plate, which is fixedly connected to the nut.
4. The preoperative eyewash device according to claim 3, characterized in that: The liquid dispensing mechanism also includes multiple liquid dispensing speed control buttons, which are signal-connected to the liquid dispensing motor. The multiple liquid dispensing speed control buttons are used to adjust the speed of the liquid dispensing motor.
5. The preoperative eyewash device according to claim 1, characterized in that: The seat includes a seat body and a backrest, the seat body and the backrest are hinged together, and the angle between the backrest and the seat body is adjustable.
6. The preoperative eyewash device according to claim 5, characterized in that: A support telescopic rod is provided between the seat body and the backrest, and the two ends of the support telescopic rod are respectively hinged to the seat body and the backrest.
7. The preoperative eyewash device according to claim 1, characterized in that: The seat is equipped with a waste liquid tank, and the water receiver is connected to a guide pipe, with the lower end of the guide pipe located inside the waste liquid tank.
8. The preoperative eyewash device according to claim 1, characterized in that: The water-receiving arm includes: A connector, which is fixedly installed on the seat; Two connecting arms are provided with an arm rotation axis. The two connecting arms are hinged to each other and rotate around the arm rotation axis. One of the connecting arms is hinged to the connecting body. Two locking structures are respectively disposed between the connecting body and the connecting arm, and between the two connecting arms; each locking structure includes: The locking rack has an arc structure and is concentrically arranged with the arm body rotation axis; Locking teeth are used to engage with the tooth grooves of the locking rack to lock the connecting arm. A toothed drive device is used to drive the locking toothed teeth to move closer to or away from the locking rack.
9. The preoperative eyewash device according to claim 8, characterized in that: The gear-shaping drive device is an electromagnetic push rod.
10. The preoperative eyewash device according to claim 8, characterized in that: It also includes a control foot pedal, which is signal-connected to the gear drive device. When the control foot pedal is pressed, the gear drive device drives the locking gear away from the locking rack.