Automatic cornea water dripping device

Abstract

The utility model discloses an automatic cornea water dripping device which comprises a main body, wherein a plurality of movable rods are sequentially connected to form a space variable structure; one end of the main body is fixed on external equipment, and the other end is provided with an injection assembly for clamping an injector; the pushing and injecting assembly comprises an injector fixing part and a pushing element, the injector is placed in the injector fixing part, and the pushing element pushes an injector piston to move, so that liquid in the injector flows out; and the pedal control element is connected with the pushing element and controls the pushing element to move. The main body is fixed on an ophthalmologic operation microscope, an injector is arranged in the injection assembly, the main body structure is changed during use, so that the injector is close to a position where water needs to be added, the pushing element is controlled by the pedal control element, liquid in the injector is squeezed out, and after use, the main body structure is changed, so that the injection assembly is far away from an operation influence area; in the operation, other personnel do not need to assist from the side, and a surgeon can finish the cornea water dripping operation by himself / herself.

Description

Technical Field

[0001] The utility model relates to the field of ophthalmic surgical instruments, in particular to an automatic corneal water dispenser. Background Art

[0002] As the aging of my country's population continues to intensify, the incidence of age-related cataracts is increasing. Phacoemulsification combined with intraocular lens implantation (Phaco-IOL) is currently the mainstream clinical treatment for cataracts, with the advantages of short operation time, less trauma, and quick recovery. Although Phaco-IOL surgery can improve patients' vision, it may damage the corneal and conjunctival tissues during the operation, leading to unstable tear film and causing dry eye syndrome after cataract surgery. It may be accompanied by varying degrees of dryness, foreign body sensation and burning sensation. In severe cases, it can affect patients' normal driving, daily reading, work, entertainment and many other activities, causing varying degrees of decline in patients' quality of life.

[0003] The duration of cataract surgery, the brightness of the intraoperative microscope light, the length of time the cornea is exposed to dry air, and the amount of energy used in phacoemulsification are all risk factors that may lead to damage to ocular surface tissue. To avoid prolonged exposure of corneal tissue to dry air and microscope light during surgery, and to ensure a clear surgical field and smooth completion of the operation, an assistant is usually required to intermittently perform corneal water instillation during cataract surgery. Before starting phacoemulsification and cortical aspiration, the surgeon can also use the irrigation cannula that comes with the Kelman needle or the Balanced needle to flush the conjunctival sac, but other surgical procedures must be stopped at this time. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the present invention is to provide a corneal water instillation device that can be controlled by the surgeon.

[0005] To achieve the above-mentioned purpose, the embodiment of the present utility model provides an automatic corneal water dispenser, comprising:

[0006] Main body: A spatially variable structure composed of several movable rods connected in sequence; one end of the main body is fixed to the external equipment, and the other end is provided with a push-in assembly for holding the syringe;

[0007] Pushing assembly: includes a syringe fixing part and a pushing element. The syringe is placed in the syringe fixing part. The pushing element pushes the syringe piston to move, causing the liquid in the syringe to flow out.

[0008] Foot control element: connected to the pushing element to control the movement of the pushing element.

[0009] According to the automatic corneal water injection device of the embodiment of the present invention, the main body is fixed on the ophthalmic surgical microscope, and the injection assembly is equipped with a syringe. When in use, the main body structure changes to bring the syringe close to the position where water needs to be injected. The pushing element is controlled by the foot control element to squeeze out the liquid in the syringe. After use, the main body structure is changed again to move the injection assembly away from the surgical impact area.

[0010] In addition, the automatic corneal water dispenser according to the above embodiment of the present invention may also have the following additional technical features:

[0011] Optionally, the main body includes a fixed rod, a swing rod, a rotating rod and a connecting rod; a C-shaped clamp is provided at one end of the fixed rod, and the other end is hinged to one end of the swing rod through a movable joint; the other end of the swing rod is connected to the rotating rod through a movable joint; the rotating rod can rotate around the axial direction of the swing rod; a connecting rod is provided on the rotating rod, and the connecting rod can move along the length direction of the rotating rod, and the injection assembly is connected to the connecting rod through a universal joint.

[0012] Furthermore, the movable joint has a locking mechanism, which enables the fixed rod, the swing rod and the rotating rod to switch between a relatively movable state and a relatively fixed state.

[0013] Furthermore, the movable joint has a magnetic element for adsorbing on an external device.

[0014] Optionally, the pushing element includes a driver and an extrusion plate, the extrusion plate is connected to the syringe fixing member through a screw pair, the driver drives the screw to rotate, the nut drives the extrusion plate to move, and the extrusion syringe piston moves.

[0015] Furthermore, the foot control element is a foot electric switch, which is electrically connected to the driver to control the start and stop of the driver.

[0016] Optionally, the pushing element includes a push rod, a first spring, a front push plate, a second spring and a rear clamping plate. The push rod is movably arranged relative to the syringe fixing member. The syringe fixing member forms a front baffle and a rear baffle arranged in parallel. The two baffles, the front push plate and the rear clamping plate form a coaxial through hole for the push rod to move therein; the first spring is sleeved on the push rod, with one end resting on the inner side of the front baffle and the other end resting on the front push plate; the second spring is sleeved on the push rod, with one end resting on the outer side of the rear baffle and the other end resting on the rear clamping plate; one end of the front push plate is hinged to the foot control element, and the rear clamping plate is hinged to the rear baffle to form an openable and closable structure.

[0017] Furthermore, the pedal control element includes a foot pedal, an outer sleeve and an inner traction wire. When the foot pedal is stepped on, the inner traction wire moves along the length direction relative to the outer sleeve. The inner traction wire is hinged to the front push plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the use state according to an embodiment of the utility model Figure 1 ;

[0019] Figure 2 A three-dimensional diagram of the use state according to an embodiment of the utility model Figure 2 ;

[0020] Figure 3 This is a three-dimensional schematic diagram of a folded state according to one embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of a mechanical control scheme for a pushing element according to an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of an electric control scheme for a pushing element according to an embodiment of the present invention.

[0023] Description of labels:

[0024] Body 1

[0025] Fixed rod 11C type clamping piece 111

[0026] Swing rod 12 Rotating rod 13 Connecting rod 14 Active joint 15

[0027] Push component 2

[0028] Syringe holder 21

[0029] Pushing element 22

[0030] Push rod 221 first spring 222 front push plate 223 second spring 224 rear clamping plate 225

[0031] Extrusion plate 226 screw pair 227 driver 228

[0032] Universal joint 23

[0033] Pull line 32 inside outer tube 31

[0034] Syringe 100 and ophthalmic surgical microscope 200. DETAILED DESCRIPTION

[0035] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] When the utility model is used, the main body is fixed on the ophthalmic surgical microscope, and the push injection assembly is equipped with a syringe. When in use, the main body structure is changed to bring the syringe close to the position where water needs to be dispensed. The pushing element is controlled by the foot control element to squeeze out the liquid in the syringe. After use, the main body structure is changed again to move the push injection assembly away from the surgical impact area.

[0037] To better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0039] Figures 1 to 5 An automatic corneal water dispenser according to an embodiment of the present invention comprises:

[0040] Main body 1: A spatially variable structure composed of several movable rods connected in sequence; one end of the main body 1 is fixed to the external equipment, and the other end is provided with a push assembly 2 for clamping the syringe; through the variable spatial structure of the main body 1, the syringe 100 can be fixed in various shapes within a certain space without blocking the surgical area and the operating field.

[0041] Pushing assembly 2: includes a syringe fixing part 21 and a pushing element 22. The syringe is placed in the syringe fixing part 21. The pushing element 22 pushes the piston of the syringe 100 to move, so that the liquid in the syringe 100 flows out; the syringe 100 is detachably fixed on the pushing assembly 2, and the liquid can be quickly replaced when it is used up during the operation.

[0042] Foot control element: connected to the pushing element 22, controls the movement of the pushing element 22, and can be operated blindly without occupying the surgeon's hands, and does not affect the surgical process.

[0043] Optionally, the main body 1 includes a fixed rod 11, a swing rod 12, a rotating rod 13 and a connecting rod 14; a C-shaped clamp 111 is provided at one end of the fixed rod 11, and the other end is hinged to one end of the swing rod 12 through a movable joint 15; the other end of the swing rod 12 is connected to the rotating rod 13 through a movable joint 15; the rotating rod 13 can rotate around the axial direction of the swing rod 12; a connecting rod 14 is provided on the rotating rod 13, and the connecting rod 14 can move along the length direction of the rotating rod 13, and the injection assembly 2 is connected to the connecting rod 14 through a universal joint 23.

[0044] In the embodiment of the present utility model, the setting mode is to be fixed on the external structure of the ophthalmic surgical microscope 200. Since ophthalmic surgery is basically performed within the field of view of the microscope, it is set outside the microscope and can be operated blindly without adjusting the field of view. The main body 1 structure can play a movable role. When needed, the syringe 100 is put down to add water, and when not needed, it is raised and removed from the surgical area.

[0045] Therefore, when in use, the fixed rod 11 plays the role of firmly fixing to the microscope, and the swing rod 12 can swing up and down to make the subsequent structure leave the surgical operation area; the rotating rod 13 can be L-shaped and can be axially rotated relative to the swing rod 12; the fixed rod 11 is hinged with the pushing element 22 and its own movement relative to the rotating rod 13, so that the syringe 100 can be fixed at any three-dimensional point in an area in space.

[0046] Furthermore, the movable joint 15 has a locking mechanism that switches between a relatively movable state and a relatively fixed state among the fixed rod 11, the swing rod 12, and the rotating rod 13. The locking mechanism can be a thumb screw and a toothed rotating joint. Loosening the thumb screw allows the rotating joint to rotate freely, while tightening the thumb screw causes the teeth to engage with each other, firmly fixing the joint.

[0047] Furthermore, the movable joint 15 has a magnetic element to be adsorbed on an external device. In this solution, the magnetic element adsorbs the infrequently moving part of the rod to the outer shell of the microscope, thereby shortening the length of the free part of the entire main body 1 and reducing the shaking of the main body 1 during use.

[0048] The syringe fixing member 21 is a cylindrical structure that can accommodate the syringe 100. The syringe 100 can be temporarily fixed therein, and will not move forward or backward during the movement of the pushing element 22.

[0049] In some embodiments, the pushing element 22 includes a driver 228 and a squeeze plate 226. The squeeze plate 226 is connected to the syringe holder 21 via a screw assembly 227. The driver 228 drives the screw to rotate, and the nut drives the squeeze plate 226 to move, squeezing the piston of the syringe 100. Furthermore, the foot control element is a foot-operated electric switch electrically connected to the driver 228 to control the start and stop of the driver 228.

[0050] Specifically, in the above solution, the nut can be fixed to the extrusion plate 226, while the lead screw is provided on the syringe holder 21. When the foot control element is pressed, the driver 228 rotates. Since the lead screw cannot move forward and backward, the nut moves, driving the extrusion plate 226. This embodiment of the utility model is used for acupuncture during surgery, so the nut moves unidirectionally during use to squeeze the syringe 100. After the surgery, the driver 228 is reversed to cause the nut to drive the extrusion plate 226 to move in the opposite direction, providing space for the syringe 100 to exit. The lead screw pair 227 can be provided on only one side, with a sliding sleeve rod provided on the other side in parallel and in the same direction to ensure smooth movement of the extrusion plate 226.

[0051] The above solution achieves the purpose of electrically controlling the movement of the pushing element 22. The advantage of this solution is that the operation can be very precise and the pedaling is effortless.

[0052] In some embodiments, the pushing element 22 includes a push rod 221, a first spring 222, a front push plate 223, a second spring 224 and a rear clamping plate 225. The push rod 221 is movably arranged relative to the syringe fixing part 21. The syringe fixing part 21 forms a front baffle and a rear baffle arranged in parallel. The two baffles, the front push plate 223 and the rear clamping plate 225 form a coaxial through hole for the push rod 221 to move therein; the first spring 222 is sleeved on the push rod 221, one end of which is against the inner side of the front baffle, and the other end is against the front push plate 223; the second spring 224 is sleeved on the push rod 221, one end of which is against the outer side of the rear baffle, and the other end is against the rear clamping plate 225; one end of the front push plate 223 is hinged to the foot control element, and the rear clamping plate 225 is hinged to the rear baffle to form an openable and closable structure. Furthermore, the foot control element includes a foot pedal, an outer sleeve 31 and an inner traction wire 32 . Stepping on the foot pedal causes the inner traction wire 32 to move along the length direction relative to the outer sleeve 31 . The inner traction wire 32 is hinged to the front push plate 223 .

[0053] The specific operating principle of the above scheme can refer to the glass glue gun. When the foot pedal is stepped on, the inner traction wire 32 retracts relative to the outer sleeve 31, thereby driving the front push plate 223 to pull the push rod 221 forward. Since the inner traction wire 32 is hinged to the front push plate 223, the front push plate 223 tends to rotate when moving forward. Through this change, the push rod 221 can be clamped to drive its movement; the push rod 221 also squeezes the piston of the syringe 100. After completing this action, the compressed first spring 222 pushes the front push plate 223 in the opposite direction. Since the first spring 222 acts on the front push plate 223, the aforementioned state of the front push plate 223 clamping the push rod 221 is naturally in contact, and the front push plate 223 is pushed back to its original position.

[0054] In the above process, in order to prevent the push rod 221 from being driven back when the front push plate 223 is reset, the rear clamping plate 225 will be clamped relative to the push rod 221 when retreating. As the push rod 221 retreats, this clamping state will quickly become stuck, thus avoiding the tendency of the push rod 221 to retreat, and only the front push plate 223 is pushed back to its original position by the first spring 222.

[0055] In the next forward movement cycle of the front push rod 221, the rear clamping plate 225 that was previously stuck swings as the push rod 221 moves forward. This process does not affect the forward movement of the push rod 221 until the push rod 221 swings to a state perpendicular to the push rod 221. The stuck state is naturally released, allowing the push rod 221 to continue to move forward, and the rear clamping plate 225 is reset under the action of the second spring 224, waiting for the next movement cycle of the push rod 221 to retreat.

[0056] Therefore, the above scheme realizes the control of the action of the pushing element 22 by the foot control element through a purely mechanical structure. Compared with the electronic control scheme, this scheme has more mechanical components, and it is necessary to estimate the dripping liquid by feeling when stepping on it. However, the advantage is that it is a fully mechanical structure, which does not generate additional power requirements and will not generate signals to interfere with other surgical equipment, and is convenient for overall disinfection.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0058] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0060] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic corneal water dispenser, characterized in that: include Main body: A spatially variable structure composed of several movable rods connected in sequence; one end of the main body is fixed to the external equipment, and the other end is provided with a push-in assembly for holding the syringe; Pushing assembly: includes a syringe fixing part and a pushing element. The syringe is placed in the syringe fixing part. The pushing element pushes the syringe piston to move, causing the liquid in the syringe to flow out. Foot control element: connected to the pushing element to control the movement of the pushing element.

2. The automatic corneal water dispenser according to claim 1, characterized in that: The main body includes a fixed rod, a swing rod, a rotating rod and a connecting rod; a C-shaped clamp is provided at one end of the fixed rod, and the other end is hinged to one end of the swing rod through a movable joint; the other end of the swing rod is connected to the rotating rod through a movable joint; the rotating rod can rotate around the axial direction of the swing rod; a connecting rod is provided on the rotating rod, and the connecting rod can move along the length direction of the rotating rod, and the injection assembly is connected to the connecting rod through a universal joint.

3. The automatic corneal water dispenser according to claim 2, characterized in that: The movable joint has a locking mechanism, which enables the fixed rod, the swing rod and the rotating rod to switch between relatively movable and relatively fixed states.

4. The automatic corneal water dispenser according to claim 2, characterized in that: The movable joint has magnetic elements to attach to external equipment.

5. The automatic corneal water dispenser according to claim 1, characterized in that: The pushing element includes a driver and an extrusion plate. The extrusion plate is connected to the syringe fixing part through a screw pair. The driver drives the screw to rotate, and the nut drives the extrusion plate to move, thereby squeezing the syringe piston to move.

6. The automatic corneal water dispenser according to claim 5, characterized in that: The foot control element is a foot electric switch, which is electrically connected to the driver to control the start and stop of the driver.

7. The automatic corneal water dispenser according to claim 1, characterized in that: The pushing element includes a push rod, a first spring, a front push plate, a second spring and a rear clamping plate. The push rod is movably arranged relative to the syringe fixing part. The syringe fixing part forms a front baffle and a rear baffle arranged in parallel. The two baffles, the front push plate and the rear clamping plate form a coaxial through hole for the push rod to move therein; the first spring is sleeved on the push rod, one end of which rests on the inner side of the front baffle, and the other end rests on the front push plate; the second spring is sleeved on the push rod, one end of which rests on the outer side of the rear baffle, and the other end rests on the rear clamping plate; one end of the front push plate is hinged to the foot control element, and the rear clamping plate is hinged to the rear baffle to form an openable and closable structure.

8. The automatic corneal water dispenser according to claim 7, characterized in that: The pedal control element includes a pedal, an outer sleeve and an inner traction line. When the pedal is stepped on, the inner traction line moves along the length direction relative to the outer sleeve. The inner traction line is hinged to the front push plate.

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