Ophthalmic punctum applicator with tracer device

Abstract

The ophthalmic puncture device with tracing device comprises a puncture knife, a sheath tube and a tracing device. The tracing device usually uses light-emitting means to trace, such as self-luminous materials, lighting devices, etc. The tracing device is usually arranged at the proximal end of the sheath tube, such as the fixed end of the sheath tube or the self-closing valve. The tracing device emits light, so that the position of the sheath tube can be easily found in a dim operating environment, effectively avoiding the interruption of the operation caused by the inability to accurately find the sheath tube during the operation, or the disturbance and harm caused to the medical staff and the patient by frequently turning on the light. Since ophthalmic surgery is usually operated under a microscope, the light emitted by the tracing device can be controlled, so that the tracing can be performed at the same time without affecting the illumination effect of the intraocular surgical area, and the light intensity is controlled to prevent damage to the patient's vision.

Description

Technical Field

[0001] This invention relates to an ophthalmic surgical instrument, and more particularly to a puncture device used in ophthalmic microsurgery. Background Technology

[0002] Minimally invasive surgery has become the dominant method of surgical procedures, especially in ophthalmology, where microscopic minimally invasive ophthalmology is currently the primary approach. In microscopic ophthalmology, ophthalmic trocars are essential instruments for establishing pathways for instrument insertion and exit.

[0003] Currently, ophthalmic surgery is typically performed under a microscope. To ensure illumination during the procedure, optical fibers are usually inserted into the eye through the sheath of the ophthalmic trocar. To guarantee effective observation during the surgery, the entire surgical environment is usually kept dark, except for the intraocular illumination. Since the ophthalmic trocar is an extremely small instrument, accurately locating it and passing it through the trocar in such a dimly lit surgical environment is often quite challenging.

[0004] The current method involves turning on the microscope's illumination when it is difficult to accurately locate the puncture device. On the one hand, this frequent high-intensity illumination can easily damage the eyes, and on the other hand, each time the microscope's illumination is turned on, it also causes significant wear and tear on the microscope instrument itself.

[0005] Therefore, existing ophthalmic puncture devices need to be improved so that they can be easily and quickly located even in dimly lit surgical environments, ensuring the smooth progress of the procedure. Summary of the Invention

[0006] The purpose of this invention is to solve the problem that existing ophthalmic puncture instruments are difficult to locate quickly and accurately in dimly lit surgical environments due to their small size. By setting up a tracer device, the location of the puncture instrument can be quickly found even in dimly lit surgical environments, ensuring the smooth progress of the surgical procedure.

[0007] The ophthalmic puncture device with a tracer of the present invention is characterized in that: the ophthalmic puncture device 100 with a tracer includes a puncture knife 1, a sheath 2 and a tracer 3; the tracer 3 can mark the position of the sheath 2 of the ophthalmic puncture device 100 with a tracer.

[0008] The light emitted by the tracer device 3 will not affect the observation effect of the surgical field of view, nor will it cause damage to vision.

[0009] The tracer device 3 typically uses light emission for tracking, such as self-luminous materials or lighting devices. During surgery, light is emitted from the proximal end of the sheath 2, making it easy to locate the sheath 2 in a dimly lit surgical environment. This effectively avoids surgical interruptions caused by the inability to accurately locate the sheath 2, or the interference and harm caused to medical staff and patients by frequent lighting. Since ophthalmic surgery is usually performed under a microscope, controlling the light emitted by the tracer device 3 allows for tracking without affecting the illumination of the intraocular surgical area. Furthermore, by controlling the light intensity, damage to the patient's vision can be prevented.

[0010] The sheath 2 includes a fixed end 21 and a sleeve 22. The sleeve 22 enters the eye and is fixed to the eye, forming a channel for surgical instruments to enter and exit. The fixed end 21 is exposed outside the eye and has an instrument inlet 21-1 for instruments to enter and exit the eye for surgery.

[0011] The tracer device 3 is mounted on the fixed end 21 of the sheath 2. Since the fixed end 21 is exposed outside the eye, the tracer device 3 is usually mounted on the fixed end 21 to facilitate observation by medical personnel.

[0012] The fixed end 21 contains a self-luminous material, and the fixed end 21 constitutes the tracer device 3.

[0013] Self-luminescent materials are substances that can absorb energy in a certain way and convert it into non-equilibrium light radiation. The process of converting the energy absorbed inside the material into non-equilibrium light radiation is the luminescence process. In particular, photoluminescent self-luminescent materials can emit light continuously for more than 12 hours in a dark environment after a few minutes or tens of minutes under external light, which can fully meet the tracking needs of ophthalmic surgery lasting about 1 hour.

[0014] Self-luminescent materials can take many forms, such as powder, single crystal, thin film, or amorphous material.

[0015] Powdered self-luminous material can typically be mixed with the raw material in the fixed end 21 and injection molded, thereby giving the fixed end 21 a self-luminous effect. It can emit light as a whole in dim environments, thus forming the tracer device 3. This integral injection molding method is simple to manufacture and does not require additional equipment.

[0016] The tracer device 3 is a light-emitting sheet / or light-emitting ring 31 made of self-luminous material. The tracer device 3 can also be configured as a separate light-emitting sheet / or light-emitting ring 31, placed in different locations as needed. Because the tracer device 3 is separately configured, it can be better protected, avoiding contact with human tissue and thus offering better biosafety.

[0017] The light-emitting sheet / or light-emitting ring 31 is disposed on the surface of the fixed end 21. The light-emitting sheet / or light-emitting ring 31 can be directly bonded to the surface of the fixed end 21 by adhesive bonding, making installation very simple.

[0018] The upward-facing portion of the fixing end 21 is made of a transparent material, and the light-emitting sheet / or light-emitting ring 31 is disposed inside the fixing end 21 and enclosed by it. The embedding or enclosing of the light-emitting sheet / or light-emitting ring 31 within the fixing end 21 effectively avoids contact with human tissue while ensuring luminescent tracing, resulting in excellent biocompatibility. The portion of the fixing end 21 facing inwards towards the eye can be made of an opaque material, preventing the light emitted by the light-emitting sheet / or light-emitting ring 31 from entering the eye and effectively preventing interference with the intraocular surgical field of vision.

[0019] The tracer device 3 is a light-guiding optical fiber 32. The light-guiding optical fiber 32 can effectively guide the light source to the sheath 2, and the light-guiding optical fiber 32 can also connect or disconnect the light source as needed, making it very flexible in use.

[0020] The light outlet 32-1 of the optical fiber 32 is located on the upper surface of the fixed end 21. This placement of the light outlet 32-1 on the upper surface of the fixed end 21 better prevents light from affecting the illumination of the intraocular surgical area. In practical applications, the fixed end 21 can also be made transparent, and the light outlet of the optical fiber 32 can be located at any position on the fixed end 21 to achieve the effect of illumination tracing.

[0021] The sheath 2 also includes a self-closing valve 23. The self-closing valve 23 can better ensure the stability of intraocular pressure. The self-closing valve 23 is usually made of medical elastic material and can basically return to the closed state after the instrument is removed, achieving a good self-closing effect.

[0022] The self-closing valve 23 is made of a self-luminous material and constitutes the tracer device 3. The self-closing valve 23 is the entry and exit position of the instrument. Therefore, the self-closing valve 23 is made of a self-luminous material, which can directly guide the instrument in and out, achieving a very good tracer effect.

[0023] The sheath 2 also includes a protective plate 24.

[0024] The protective plate 24 is disposed at the upper end of the self-closing valve 23 of the sheath tube 2.

[0025] The protective plate 24 can play a good guiding role, guiding the surgical instruments in. At the same time, because the protective plate 24 has good puncture resistance, it can play a good protective role for the self-closing valve 23, effectively preventing damage to the self-closing valve 23 when the instruments enter.

[0026] The protective sheet 24 is made of a self-luminous material and constitutes the tracer device 3. Because the protective sheet 24 serves to guide the instrument, its tracer effect is excellent when made of a self-luminous material.

[0027] In clinical use, the ophthalmic puncture device with a tracer is first exposed to light for several minutes to tens of minutes according to the expected operation time. Then, the puncture knife 1 is placed in the sheath 2, the handle 11 of the puncture knife 1 is held, the intraocular tissue is punctured, the sleeve 22 is clamped with forceps, and the puncture knife 1 is pulled out. The sheath 2 remains on the intraocular tissue, and the surgical instruments can enter and exit the eye through the sheath 2.

[0028] The proximal end of the puncture knife 1 may also be provided with a measuring device 12, which can measure dimensions and mark surgical sites.

[0029] The ophthalmic puncture device of the present invention includes a puncture knife 1, a sheath 2, and a tracer device 3. The tracer device 3 typically uses light emission for tracking, such as self-luminous materials or illumination devices. The tracer device 3 is usually located at the proximal end of the sheath 2, such as on the fixed end 21 of the sheath 2 or on a self-closing valve 23. The light emitted by the tracer device 3 allows for easy location of the sheath 2 in dimly lit surgical environments, effectively avoiding surgical interruptions caused by inaccurate location of the sheath 2, or interference and harm to medical staff and patients caused by frequent lighting. Since ophthalmic surgery is usually performed under a microscope, controlling the light emitted by the tracer device 3 allows for tracking without affecting the illumination of the intraocular surgical area, and by controlling the light intensity, prevents damage to the patient's vision. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the ophthalmic puncture device with a tracer according to the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the sheath of the ophthalmic puncture device of the present invention, which has a fixed end made of self-luminous material and is equipped with a tracer device.

[0032] Figure 2-1 yes Figure 2 Exploded view.

[0033] Figure 3 This is a schematic diagram of the sheath of the ophthalmic puncture device with a tracer, which includes a light-emitting sheet / ring, according to the present invention.

[0034] Figure 3-1 yes Figure 3 Exploded view.

[0035] Figure 4 This is a schematic diagram of the sheath of the ophthalmic puncture device with a tracer device of the present invention, which includes a self-closing valve.

[0036] Figure 4-1 yes Figure 4 Exploded view.

[0037] Figure 5 This is a schematic diagram of the sheath of the ophthalmic puncture device with a tracer, as described in this invention, which includes a protective sheet.

[0038] Figure 5-1 yes Figure 5 Exploded view.

[0039] Figure 6 This is a schematic diagram of the structure of the sheath of the ophthalmic puncture device with a tracer device of the present invention, which contains optical fiber.

[0040] In the above figure:

[0041] 100 is the ophthalmic puncture device with a tracer of the present invention.

[0042] 1 is a piercing knife, 2 is a sheath, and 3 is a tracer device.

[0043] 11 is the handle, 12 is the measuring device, 21 is the fixed end, 22 is the sleeve, 23 is the self-closing valve, 24 is the protective plate, 31 is the light-emitting plate / or light-emitting ring, 32 is the light-guiding fiber, and 32-1 is the light outlet. Detailed Implementation

[0044] Example 1: Ophthalmic puncture device with tracer of the present invention containing self-luminous material tracer.

[0045] refer to Figures 1 to 2-1 The ophthalmic puncture device with a tracer in this embodiment includes a puncture knife 1, a sheath 2, and a tracer 3. The tracer 3 can mark the position of the sheath 2 of the ophthalmic puncture device 100 with a tracer.

[0046] In this embodiment, the tracer device 3 is made of a self-luminous material.

[0047] The light emitted by the tracer device 3 will not affect the observation effect of the surgical field of vision, nor will it cause damage to vision.

[0048] In this embodiment, the proximal end of the puncture knife 1 is provided with a measuring device 12, which can measure size, mark surgical sites, etc.

[0049] The sheath 2 includes a fixed end 21 and a sleeve 22. The sleeve 22 enters the eye and is fixed to the eye, forming a channel for surgical instruments to enter and exit. The fixed end 21 is exposed outside the eye and has an instrument inlet 21-1 for instruments to enter and exit the eye for surgery.

[0050] The tracer device 3 is mounted on the fixed end 21 of the sheath 2. Since the fixed end 21 is exposed outside the eye, the tracer device 3 is usually mounted on the fixed end 21 to facilitate observation by medical personnel.

[0051] refer to Figure 2 and Figure 2-1 The fixed end 21 contains a self-luminous material, and the fixed end 21 constitutes the tracer device 3. Powdered photoluminescent self-luminous material can typically be mixed with the raw material of the fixed end 21 and injection molded, thus giving the fixed end 21 a self-luminous effect. It can emit light as a whole in dim environments, thereby constituting the tracer device 3. This integral injection molding method is simple to manufacture and requires no additional equipment.

[0052] The tracer device 3 can also be a separate light-emitting sheet / or light-emitting ring 31 made of self-luminous material. The light-emitting sheet / or light-emitting ring 31 can be set in different positions as needed. Because the tracer device 3 is set separately, it can be better protected, avoiding contact with human tissue, and thus has better biosafety.

[0053] refer to Figure 3 and Figure 3-1 The light-emitting sheet / or light-emitting ring 31 is disposed on the surface of the fixed end 21. The light-emitting sheet / or light-emitting ring 31 can be directly bonded to the surface of the fixed end 21 by adhesive bonding, making installation very simple.

[0054] The upward portion of the fixed end 21 can be made of a transparent material, and the light-emitting sheet / or light-emitting ring 31 can be embedded or disposed inside the fixed end 21 and wrapped by the fixed end 21. The embedding or wrapping of the light-emitting sheet / or light-emitting ring 31 inside the fixed end 21 can effectively avoid contact with human tissue while ensuring light emission tracing, resulting in excellent biosafety.

[0055] The portion of the fixed end 21 facing into the eye can be made of an opaque material, so that the light emitted by the light-emitting sheet / or light-emitting ring 31 will not be transmitted into the eye, thereby effectively preventing interference with the intraocular surgical field of vision.

[0056] refer to Figure 4 and Figure 4-1The sheath 2 also includes a self-closing valve 23. The self-closing valve 23 can better ensure the stability of intraocular pressure. The self-closing valve 23 is usually made of medical elastic material and can basically return to the closed state after the instrument is removed, achieving a good self-closing effect.

[0057] When the self-closing valve 23 is made of a self-luminous material, it can constitute the tracer device 3. The self-closing valve 23 is the entry and exit position of the instrument. Therefore, the self-closing valve 23, made of a self-luminous material, can directly guide the instrument in and out, achieving a very good tracer effect.

[0058] refer to Figure 5 and Figure 5-1 The sheath 2 may also include a protective sheet 24.

[0059] The protective plate 24 is disposed at the upper end of the self-closing valve 23 of the sheath tube 2.

[0060] The protective plate 24 can play a good guiding role, guiding the surgical instruments in. At the same time, because the protective plate 24 has good puncture resistance, it can play a good protective role for the self-closing valve 23, effectively preventing damage to the self-closing valve 23 when the instruments enter.

[0061] When the protective sheet 24 is made of a self-luminous material, the protective sheet 24 constitutes the tracer device 3. Because the protective sheet 24 serves to guide the instrument into place, making the protective sheet 24 of a self-luminous material will result in excellent tracer performance.

[0062] In clinical use, the ophthalmic puncture device with a tracer is first exposed to light for several minutes to tens of minutes, depending on the expected surgical duration. Then, the puncture knife 1 is placed inside the sheath 2. The handle 11 of the puncture knife 1 is held, and the intraocular tissue is punctured. The sleeve 22 is grasped with forceps, and the puncture knife 1 is pulled out. The sheath 2 remains on the intraocular tissue, and surgical instruments can enter and exit the eye through the sheath 2. When necessary, the measuring device 12 can be used for dimensional measurement, surgical site marking, and other operations.

[0063] In this embodiment, the tracer device 3 uses a self-luminous material for tracking. During the surgery, light is emitted from the proximal end of the sheath 2, making it easy to locate the sheath 2 in a dimly lit surgical environment. This effectively avoids surgical interruptions caused by the inability to accurately locate the sheath 2, or the interference and harm caused to medical staff and patients by frequent lighting. Since ophthalmic surgery is usually performed under a microscope, controlling the light emitted by the tracer device 3 allows for tracking without affecting the illumination of the intraocular surgical area. Furthermore, by controlling the light intensity, damage to the patient's vision can be prevented.

[0064] Example 2: The ophthalmic puncture device of the present invention with a tracer device, including optical fiber.

[0065] refer to Figure 6 The difference between this embodiment and embodiment 1 is that in this embodiment, the tracer device 3 is a light guide fiber 32.

[0066] In this embodiment, the light outlet 32-1 of the optical fiber 32 is located on the upper end face of the fixed end 21. The location of the light outlet 32-1 on the upper end face of the fixed end 21 better prevents light from affecting the illumination effect of the intraocular surgical area.

[0067] In practical applications, the fixed end 21 can also be made transparent, and the light outlet of the light guide fiber 32 can be set at any position of the fixed end 21 to achieve the effect of illumination tracing.

[0068] The optical fiber 32 can effectively guide the light source to the sheath 2, and the optical fiber 32 can also connect or disconnect the light source as needed, making it very flexible in use.

[0069] In this embodiment, when the doctor needs to locate the sheath 2 during surgery, the light source of the optical fiber 32 is turned on, and the optical fiber 32 can provide illumination, making it convenient for the doctor to find the location of the sheath in time. When it is not needed, the light source of the optical fiber 32 is cut off, and the surgical environment can be restored to the required state, making clinical application more flexible.

[0070] It should be noted that the structures disclosed and described herein can be replaced by other structures with the same effect, and the embodiments described herein are not the only structures for implementing the present invention. Although preferred embodiments of the present invention have been described and illustrated herein, those skilled in the art will understand that these embodiments are merely illustrative, and those skilled in the art can make numerous variations, modifications, and substitutions without departing from the present invention. Therefore, the scope of protection of the present invention should be defined in accordance with the spirit and scope of the appended claims.

Claims

1. An ophthalmic puncture device with a tracer, characterized in that: The ophthalmic puncture device (100) with a tracer includes a puncture knife (1), a sheath (2) and a tracer (3). A. The sheath (2) includes a fixed end (21) and a sleeve (22); the tracer (3) is disposed on the fixed end (21) and is used to mark the position of the sheath (2); B. The fixing end (21) has an inward portion and an outward portion. The inward portion of the fixing end (21) is made of an opaque material to prevent light from entering the eye. C. Control the light emitted by the tracer (3) so that the light emitted by the tracer (3) will not affect the observation effect of the surgical field of vision, nor will it cause damage to vision.

2. The ophthalmic puncture device with a tracer according to claim 1, characterized in that: The tracer device (3) is a light-emitting sheet or light-emitting ring (31) made of self-luminous material.

3. The ophthalmic puncture device with a tracer according to claim 2, characterized in that: The light-emitting sheet or light-emitting ring (31) is disposed on the surface of the fixed end (21).

4. The ophthalmic puncture device with a tracer according to claim 2, characterized in that: The upward part of the fixed end (21) is made of transparent material, and the light-emitting sheet or light-emitting ring (31) is disposed inside the fixed end (21) and is wrapped by the fixed end (21).

5. The ophthalmic puncture device with a tracer according to claim 1, characterized in that: The tracer device (3) is an optical fiber (32).

6. The ophthalmic puncture device with a tracer according to claim 5, characterized in that: The light outlet (32-1) of the optical fiber (32) is located on the upper surface of the fixed end (21).

7. The ophthalmic puncture device with a tracer according to claim 1, characterized in that: The sheath (2) also includes a self-closing valve (23).

8. The ophthalmic puncture device with a tracer according to claim 7, characterized in that: The self-closing valve (23) is made of a self-luminous material and constitutes the tracer device (3).

9. The ophthalmic puncture device with a tracer according to claim 1, characterized in that: The sheath (2) also includes a protective plate (24).

10. The ophthalmic puncture device with a tracer according to claim 9, characterized in that: The protective plate (24) is located at the upper end of the self-closing valve (23) of the sheath (2).

11. The ophthalmic puncture device with a tracer according to claim 10, characterized in that: The protective sheet (24) is made of a self-luminous material and constitutes the tracer device (3).

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