An ocular treatment aid

Abstract

The present application relates to the field of surgical chairs and treatment chairs specially used for patients, in particular to an auxiliary device for eye treatment, comprising a treatment chair, a positioning hole is formed in the thickness direction of the chair back, a head cover is rotatably arranged on the top of the chair back, positioning rods are slidably connected to the top end and the bottom end of the head cover, the positioning rods can be clamped in the positioning hole, an unlocking rod is slidably arranged in the positioning hole, a spring is sleeved on the unlocking rod, one end of the spring is fixed to the inner wall of the positioning hole, the other end of the spring is fixed to the unlocking rod, when the spring is in a free state, the front end of the unlocking rod leaves a space for the positioning rod to be clamped in between the hole opening on the front of the chair back and the positioning hole, top rods for pushing the positioning rods are connected to the two ends of the unlocking rod, two accommodating holes for the top push-pull handrails of the wheelchair to be inserted are formed on the back of the chair back, and drive assemblies for driving the unlocking rod to slide towards the front of the treatment chair are arranged in the accommodating holes. The present application realizes the compatibility of the special treatment chair for lacrimal passage flushing for healthy patients and wheelchair patients.

Description

Technical Field

[0001] This invention relates to the field of operating chairs and treatment chairs specifically designed for patients, and more particularly to an auxiliary device for eye treatment. Background Technology

[0002] Lacrimal duct irrigation is a common ophthalmic procedure used to assess and treat the patency of the lacrimal system. This procedure involves injecting saline or other irrigation fluid into the lacrimal puncta to remove foreign objects or secretions from the lacrimal duct and to assess for any obstruction and its location.

[0003] During lacrimal duct irrigation, to ensure accurate insertion of the irrigation needle into the lacrimal punctum and smooth injection of irrigation fluid, the patient's head is usually required to be tilted upwards. Current procedures involve having the patient sit on a stool with their head against a wall for stability, while medical staff also need to manually stabilize the patient's head to prevent involuntary head movements due to tension or resistance. This not only increases the complexity and difficulty of the procedure but also poses certain safety risks.

[0004] To address the aforementioned issues, existing technology discloses a treatment chair specifically designed for lacrimal duct irrigation. This specialized chair is equipped with a headrest device, effectively securing the patient's head without requiring manual fixation by medical staff, significantly improving the safety and convenience of the procedure. However, in practical clinical applications, this technology still has the following shortcomings: Lacrimal duct irrigation is frequently required for wheelchair-bound patients. Existing lacrimal duct irrigation treatment chairs require patients to be transferred to the chair for the procedure, which presents a significant challenge for wheelchair users. Safely and conveniently transferring patients from wheelchairs to the treatment chair is not only complex but may also introduce additional risks and inconveniences. As the above analysis shows, while existing technologies have made progress in improving the safety and convenience of lacrimal duct irrigation, further optimization is needed to better meet the needs of wheelchair-bound patients. Summary of the Invention

[0005] The present invention aims to provide an auxiliary device for eye treatment to solve the problem that it is inconvenient to perform lacrimal duct irrigation on wheelchair patients in the prior art.

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

[0007] An auxiliary device for eye treatment includes a treatment chair. The treatment chair includes a backrest with a positioning hole extending through it along its thickness. A headgear is rotatably mounted on the top of the backrest. Positioning rods are slidably connected to both the top and bottom of the headgear, and the positioning rods can be locked into the positioning holes. An unlocking rod is slidably mounted within the positioning holes. A spring is fitted onto the unlocking rod, with one end of the spring fixed to the inner wall of the positioning hole and the other end fixed to the unlocking rod. When the spring is in a free state, a space is left between the front end of the unlocking rod and the opening of the positioning hole on the front of the backrest for the positioning rod to engage. Push rods for pushing the positioning rod are connected to both ends of the unlocking rod. Two receiving holes are provided on the back of the backrest for inserting push-pull armrests from the top of a wheelchair. A drive assembly for driving the unlocking rod to slide towards the front of the treatment chair is provided within the receiving holes.

[0008] Preferably, as an improvement, the drive assembly includes a baffle that is slidably disposed within the receiving hole, the baffle being connected to an L-shaped connecting rod, the other end of the connecting rod being fixed to an unlocking rod.

[0009] Preferably, as an improvement, a rubber limiting ring is fixed on the inner wall of the positioning hole. The limiting ring has a semi-circular cross-section, the diameter of the free end of the positioning rod is smaller than the inner diameter of the limiting ring, and the diameter of the rod part of the positioning rod is larger than the inner diameter of the limiting ring.

[0010] Preferably, as an improvement, the receiving hole is a horizontally arranged strip hole, and the treatment chair is a height-adjustable treatment chair.

[0011] Preferably, as an improvement, airbags are fixed on the inner walls of the left and right sides of the headgear.

[0012] Preferably, as an improvement, the headgear has clearance grooves on both sides to avoid the patient's ears.

[0013] Preferably, as an improvement, the treatment chair is a rotating treatment chair.

[0014] Preferably, as an improvement, the armrests of the treatment chair are equipped with lighting.

[0015] Preferably, as an improvement, the armrests of the treatment chair are also equipped with storage trays.

[0016] Preferably, as an improvement, the armrests of the treatment chair are fixed with decompression balls.

[0017] The principles and beneficial effects of this solution are as follows:

[0018] 1. This solution specifically considers the needs of both healthy and wheelchair users. Its core features include the directional fixation and automatic unlocking functions of the headgear. Specifically: When a healthy patient uses the headgear, the concave side faces the front of the treatment chair, and the positioning rod at the bottom of the headgear engages with the positioning hole on the front of the chair back. At this time, the unlocking rod does not move, and the spring remains in its natural state, uncompressed. When a wheelchair user uses the headgear, the wheelchair and treatment chair back are placed back-to-back, allowing the push-pull armrest on the top of the wheelchair to be inserted into the receiving hole on the back of the treatment chair. When the push-pull armrest is inserted into the receiving hole, a baffle and connecting rod push the unlocking rod towards the front of the treatment chair. The movement of the unlocking rod compresses the spring, expelling the positioning rod located in the positioning hole, thus automatically unlocking the headgear. After unlocking, the headgear can be flipped backward, with its concave side facing the back of the treatment chair, allowing the wheelchair user to sit in the wheelchair with their head secured within the headgear for lacrimal duct irrigation.

[0019] This solution is suitable for both healthy patients and wheelchair users. For wheelchair users, it eliminates the need to transfer from the wheelchair to the treatment chair, reducing inconvenience and risks during the transfer process and improving the overall treatment experience. Furthermore, wheelchair users can automatically unlock and flip the headgear simply by inserting the push-pull armrest into the receiving hole, eliminating the need for manual operation. Compared to traditional solutions that use positioning pins, gears, screws, etc., to secure the headgear, this solution unlocks it simply by inserting and removing the push-pull armrest from the wheelchair, greatly simplifying the operation and reducing the workload of medical staff.

[0020] In summary, this solution, through its ingenious design, achieves compatibility between the lacrimal duct irrigation treatment chair and healthy patients as well as wheelchair users. The automatic unlocking function of the headgear not only simplifies the operation process but also significantly improves safety and user experience.

[0021] 2. This design incorporates a dedicated receiving hole to accommodate the wheelchair's push-pull armrests, ensuring a tight connection between the wheelchair and the treatment chair. This guarantees effective support and fixation of the wheelchair patient's head after the headgear is flipped over. This design ensures the stability and comfort of the wheelchair patient's head during lacrimal duct irrigation.

[0022] 3. The diameter of the free end of the positioning rod is reduced to allow it to be smoothly inserted into the limiting ring. By applying appropriate pressure, the rubber limiting ring is forced to undergo elastic deformation, allowing the positioning rod to pass smoothly through the limiting ring and into the positioning hole. Once the positioning rod is fully inserted, the limiting ring, relying on its reset property, engages between the positioning rod and the inner wall of the positioning hole, fixing the positioning rod within the positioning hole.

[0023] 4. The treatment chair is height-adjustable. In actual use, the height of the treatment chair can be adjusted so that the receiving hole on it is aligned with the push-pull armrest on the wheelchair for insertion, making it suitable for wheelchairs of various heights and sizes. At the same time, the strip-shaped receiving hole can accommodate push-pull armrests with a certain spacing, expanding the applicability range.

[0024] 5. An airbag is installed on the inner wall of the headgear to clamp the patient's head. This allows it to be used by patients with different head sizes and also ensures comfort compared to rigid clamps. The headgear has clearance grooves on both sides to avoid ear compression and discomfort, and also facilitates communication with medical staff during treatment.

[0025] 7. The rotatable treatment chair allows for easy adjustment to the desired position and facilitates back-to-back placement with a wheelchair. A lighting system helps medical staff quickly and accurately locate the lacrimal duct irrigation puncture point, reducing operational difficulty and improving efficiency. A storage tray holds necessary items for lacrimal duct irrigation, and a pressure relief ball allows patients to squeeze and grasp it during irrigation to relieve pressure. Attached Figure Description

[0026] Figure 1 This is a side view of the embodiment of the present invention when used by a wheelchair patient.

[0027] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention when used by a healthy patient.

[0028] Figure 3 This is a front view of the headgear in Embodiment 1 of the present invention.

[0029] Figure 4 This is a cross-sectional view of the positioning hole in Embodiment 1 of the present invention.

[0030] Figure 5 This is a cross-sectional view of the receiving hole in Embodiment 1 of the present invention. The upper side of the figure is the front of the treatment chair, and the lower side is the back of the treatment chair.

[0031] Figure 6 This is a schematic diagram of the structure of Embodiment 6 of the present invention. Detailed Implementation

[0032] The following detailed description illustrates the specific implementation method:

[0033] The reference numerals in the accompanying drawings of the instruction manual include: treatment chair 1, chair back 11, support rod 2, connecting shaft 21, head cover 22, positioning rod 23, sponge pad 24, airbag 25, push-pull armrest 3, wheelchair 31, limiting ring 5, top rod 51, unlocking rod 52, spring 53, positioning hole 54, receiving hole 6, connecting rod 61, baffle 62, and decompression ball 7.

[0034] Example 1:

[0035] like Figure 1 , Figure 3 and Figure 4 As shown, an auxiliary device for eye treatment includes a treatment chair 1. The treatment chair 1 includes a backrest 11, and a positioning hole 54 is formed along the thickness direction on the backrest 11. The positioning hole 54 penetrates the front and back of the backrest 11. Figure 4 The left side shows the front of the chair back 11, and the right side shows the back of the chair back 11. Support rods 2 are bolted to the top two sides of the chair back 11, and a connecting shaft 21 is bolted between the two support rods 2. A headgear 22 is rotatably mounted on the connecting shaft 21. The headgear 22 is helmet-shaped, with a sponge pad 24 glued to the inner wall. Airbags 25 are fixed to the left and right inner walls of the headgear 22 to accommodate patients with different head sizes.

[0036] The top and bottom of the headgear 22 are slidably connected with L-shaped positioning rods 23. The top and bottom of the headgear 22 have grooves (not shown in the figure) along their depth direction. The grooves are dovetail grooves and penetrate through the bottom of the headgear 22. The top of the positioning rods 23 are set as dovetails and slidably connected in the grooves. The positioning rod 23 can be locked inside the positioning hole 54. Specifically, a rubber limiting ring 5 is glued to the inner wall of the positioning hole 54. The limiting ring 5 has a semi-circular cross-section. The diameter of the free end of the positioning rod 23 is slightly smaller than the inner diameter of the limiting ring 5, and the diameter of the rod part of the positioning rod 23 is slightly larger than the inner diameter of the limiting ring 5, approximately 0.1-0.5 mm. By applying a certain pressure, the positioning rod 23 is forced to elastically deform the limiting ring 5, thus allowing it to pass through the limiting ring 5 and be inserted into the positioning rod 23. After the positioning rod 23 is fully inserted, it is locked between the positioning rod 23 and the inner wall of the positioning hole 54 by the limiting ring 5, achieving an interference fit between the positioning rod 23 and the positioning hole 54, thereby fixing the positioning rod 23 in the positioning hole 54. When a certain external force is applied, the positioning rod 23 can be pulled out of the positioning hole 54, similar to the fixing method of a pen cap in the prior art.

[0037] An unlocking rod 52 is slidably connected within the positioning hole 54. A spring 53 is fitted onto the unlocking rod 52. One end of the spring 53 is fixed to the inner wall of the positioning hole 54 by a screw or pin, and the other end of the spring 53 is fixed to the unlocking rod 52 by a screw or pin. When the spring 53 is in its free state, a space A is left between the front end of the unlocking rod 52 and the opening of the positioning hole 54 on the front of the chair back 11 for the positioning rod 23 to engage. Both ends of the unlocking rod 52 are machined into push rods 51 with a diameter smaller than the inner diameter of the limiting ring 5, used to push the positioning rod 23. Figure 5As shown, the back of the chair back 11 has two receiving holes 6 for inserting the push-pull armrests 3 on the top of the wheelchair 31. A drive assembly for driving the unlocking lever 52 to slide towards the front of the treatment chair 1 is provided within the receiving holes 6. The drive assembly includes a baffle 62 slidably connected within the receiving holes 6. The baffle 62 is vertically positioned and screwed to an L-shaped connecting rod 61. The other end of the connecting rod 61 is fixed to the unlocking lever 52 by screws. A mounting cavity is provided inside the chair back 11, and the drive assembly, unlocking lever 52, spring 53, and other components are installed within the mounting cavity.

[0038] The method of using an auxiliary device for eye treatment is as follows:

[0039] When used by healthy patients (those with healthy legs, as opposed to wheelchair users), such as Figure 2 As shown, the concave surface of the headgear 22 faces the front of the treatment chair 1. The positioning rod 23 at the bottom of the headgear 22 is engaged in the positioning hole 54 located in the opening on the front of the treatment chair 1, thus securing the headgear 22. Since there is a gap between the front end of the unlocking rod 52 and the positioning hole 54 in the opening on the front of the treatment chair 1 in its natural state, the positioning rod 23 will not drive the unlocking rod 52 when inserted into the positioning hole 54, and the spring 53 remains in its natural state and is not compressed. The patient sits on the treatment chair 1, and their head is secured in the headgear 22 by the airbag 25, keeping the patient's head in an upward-tilted position, thus supporting and fixing the head. Medical staff use a syringe to inject irrigation fluid from the lacrimal punctum into the lacrimal duct to irrigate it.

[0040] When wheelchair users use it, such as Figure 1 As shown, the wheelchair 31 and the treatment chair 1 are placed back to back. The push-pull armrest 3 (for gripping and moving the wheelchair 31) on the top of the wheelchair 31 is inserted into the receiving hole 6 on the back of the treatment chair 1, so that the wheelchair 31 and the treatment chair 1 are as close as possible. When the push-pull armrest 3 is inserted into the receiving hole 6, the unlocking lever 52 can be pushed towards the front of the treatment chair 1 through the baffle 62 and the connecting rod 61. The movement of the unlocking lever 52 causes the spring 53 to be compressed, and the positioning rod 23 located in the positioning hole 54 is squeezed out, thereby automatically unlocking the headgear 22. At the same time, the movement of the release lever makes the opening of the positioning hole 54 on the back of the treatment chair 1 open, and the unlocked headgear 22 is flipped to the back of the treatment chair 1. At this time, the positioning rod 23 located at the top of the headgear 22 flips to the bottom and can be inserted into the opening of the positioning hole 54 on the back of the treatment chair 1 and locked, so that the headgear 22 is fixed in a concave position. The wheelchair patient can sit in wheelchair 31 with their head supported and fixed by headgear 22 for lacrimal duct irrigation without having to transfer the patient from wheelchair 31 to treatment chair 1, making treatment convenient.

[0041] After treatment of patient 31 in wheelchair 31 is completed, wheelchair 31 and treatment chair 1 are separated. The push-pull armrest 3 on wheelchair 31 is pulled out from the receiving hole 6 on the back of treatment chair 1. Unlocking lever 52 loses the squeezing effect of push-pull armrest 3 and is pushed back to the back of treatment chair 1 under the action of spring 53. At this time, baffle 62 and connecting rod 61 also return to their original positions as unlocking lever 52 moves. The resetting of unlocking lever 52 pushes positioning lever 23, which is inserted in positioning hole 54, out from the back of treatment chair 1, realizing the automatic unlocking of headgear 22 on the back of treatment chair 1. At this time, headgear 22 can be flipped to the front of treatment chair 1 for subsequent use by healthy patients.

[0042] Example 2:

[0043] The difference between this embodiment and Embodiment 1 is that the receiving hole 6 is a horizontally arranged strip hole, and the treatment chair 1 is a height-adjustable treatment chair. The height adjustment of the treatment chair 1 is achieved using existing technology, utilizing a gas spring, gas damper, or gas lever. Specifically, when sitting on the treatment chair 1, one gently lifts or presses the adjustment handle on the treatment chair 1. At this time, the adjustment valve opens, allowing gas to flow freely. Applying an upward force (such as standing or using leg strength) pushes the piston rod upward until the desired height is reached. Releasing the adjustment handle automatically closes the adjustment valve, and the gas is resealed in the cylinder, fixing the chair height. To lower the height of the treatment chair 1, one also needs to lift or press the adjustment handle, open the adjustment valve, apply a downward force (such as sitting down), and the piston rod gradually descends until the desired height is reached. Releasing the adjustment handle closes the adjustment valve, locking the current height. The specific lifting structure is existing technology and will not be described in detail here.

[0044] Example 1 is primarily applicable to common hospital wheelchairs 31. The standard dimensions of a typical wheelchair 31 are approximately 104 cm long, 65 cm wide, and 51 cm high. The position of the receiving hole 6 in Example 1 is mainly based on the dimensions of the typical wheelchair 31. This example uses a height-adjustable treatment chair 1. In practical use, the height of the treatment chair 1 can be adjusted to match the height of the push-pull armrests 3 on the wheelchair 31, thus accommodating wheelchairs 31 of different heights and sizes. Furthermore, this example uses horizontally positioned strip-shaped holes 6 as receiving holes, which can accommodate push-pull armrests 3 with different spacing, thereby accommodating wheelchairs 31 of different sizes and specifications, expanding its applicability.

[0045] Example 3:

[0046] The difference between this embodiment and Embodiment 1 is that the treatment chair 1 is a rotatable treatment chair 1. Here, the rotation refers to the rotation of the portion of the treatment chair 1 above the base. Furthermore, the legs of the treatment chair 1 are equipped with casters, which are casters with brakes. The rotation of the treatment chair 1 is achieved using existing technology, such as fixing a central column at the bottom of the base of the treatment chair 1 to connect the base and the pedestal, serving as the central axis of rotation, and providing low-friction rotational support through a rotary bearing. This is existing technology and will not be elaborated upon here. The rotatable treatment chair 1 facilitates its rotation and placement against the back of the wheelchair 31 11. The casters on the legs facilitate the movement of the treatment chair 1; of course, the entire treatment chair 1 can also be rotated using the casters.

[0047] Example 4:

[0048] The difference between this embodiment and Embodiment 1 is that a light (not shown in the figure) is fixed on the armrest of the treatment chair 1, which makes it easier for medical staff to quickly and accurately locate the lacrimal punctum.

[0049] Example 5:

[0050] The difference between this embodiment and Embodiment 1 is that a storage tray (not shown in the figure) is also fixed on the armrest of the treatment chair 1, which is used to place items needed for lacrimal duct irrigation for easy access.

[0051] Example 6:

[0052] Combination Figure 6 As shown, the difference between this embodiment and embodiment 1 is that a decompression ball 7 is fixed on the armrest of the treatment chair 1. The decompression ball 7 is installed through a ball seat (not shown in the figure), which is fixed to the armrest by bolts. The decompression ball 7 is used by the patient to squeeze during treatment to relieve tension. The decompression ball 7 can be a rubber ball or a silicone ball.

[0053] Example 7:

[0054] The difference between this embodiment and embodiment 1 is that the airbag 25 is connected to an air pump (not shown in the figure), and the airbag 25 is connected to an air inlet. The air inlet can be connected to the air outlet of the air pump through a pipe. This embodiment makes it convenient to adjust the inflation amount of the airbag 25 as needed.

[0055] Example 8:

[0056] The difference between this embodiment and embodiment 1 is that the headgear 22 has a neck pillow (not shown in the figure) glued to both the bottom and top ends, and the positioning rod 23 is slidably connected to the neck pillow.

[0057] Example 9:

[0058] The difference between this embodiment and embodiment 1 is that the headgear 22 has avoidance grooves (not shown in the figure) on the left and right sides to avoid squeezing the patient's ears.

[0059] 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. An auxiliary device for eye treatment, characterized in that: The treatment chair includes a backrest with positioning holes along its thickness, extending through the backrest. A headrest is rotatably mounted on the top of the backrest, with positioning rods slidably connected to both its top and bottom ends. These positioning rods can be locked into the positioning holes. An unlocking rod is slidably mounted within the positioning holes, and a spring is fitted onto the unlocking rod. One end of the spring is fixed to the inner wall of the positioning hole, and the other end is fixed to the unlocking rod. When the spring is in its free state, a space is left between the front end of the unlocking rod and the opening of the positioning hole on the front of the backrest for the positioning rod to engage. Push rods for pushing the positioning rod are connected to both ends of the unlocking rod. Two receiving holes are provided on the back of the backrest for inserting push-pull armrests from the top of a wheelchair. A drive assembly for driving the unlocking rod to slide towards the front of the treatment chair is provided within each receiving hole. The drive assembly includes a baffle slidably mounted within the receiving hole, connected to an L-shaped connecting rod, the other end of which is connected to the unlocking rod. For wheelchair users, the wheelchair and treatment chair are placed back-to-back. The push-pull armrests on the top of the wheelchair are inserted into the receiving holes on the back of the treatment chair, making the wheelchair and treatment chair as close together as possible. When the push-pull armrests are inserted into the receiving holes, the unlocking lever is pushed towards the front of the treatment chair via the baffle and linkage. The movement of the unlocking lever causes the spring to be compressed, and the positioning rod located in the positioning hole is squeezed out, thereby automatically unlocking the headgear. At the same time, the movement of the unlocking lever opens the opening of the positioning hole on the back of the treatment chair, allowing the unlocked headgear to flip towards the back of the treatment chair. At this time, the positioning rod located at the top of the headgear flips to the bottom and can be inserted into the opening of the positioning hole on the back of the treatment chair and locked in place, so that the headgear is fixed in a concave-back state. The wheelchair user can sit in the wheelchair with their head supported and fixed by the headgear for lacrimal duct irrigation without having to transfer the wheelchair user from the wheelchair to the treatment chair.

2. The auxiliary device for eye treatment according to claim 1, characterized in that: A rubber limiting ring is fixed on the inner wall of the positioning hole. The limiting ring has a semi-circular cross-section. The diameter of the free end of the positioning rod is smaller than the inner diameter of the limiting ring, while the diameter of the rod part is larger than the inner diameter of the limiting ring.

3. The auxiliary device for eye treatment according to claim 1, characterized in that: The receiving hole is a horizontally positioned strip-shaped hole, and the treatment chair is a height-adjustable treatment chair.

4. The auxiliary device for eye treatment according to claim 1, characterized in that: Airbags are fixed to the inner walls of the left and right sides of the headgear.

5. An auxiliary device for eye treatment according to claim 4, characterized in that: The headgear has clearance grooves on both sides to avoid the patient's ears.

6. The auxiliary device for eye treatment according to claim 1, characterized in that: The treatment chair is a rotating treatment chair.

7. The auxiliary device for eye treatment according to claim 1, characterized in that: The armrests of the treatment chair are equipped with fixed lights.

8. An auxiliary device for eye treatment according to claim 1, characterized in that: The armrests of the treatment chair are also equipped with storage trays.

9. An auxiliary device for eye treatment according to claim 1, characterized in that: The armrests of the therapy chair are fitted with decompression balls.

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