Intraocular adaptive laser vitrectomy system

Abstract

The invention provides an intraocular self-adaptive laser vitrectomy system. The intraocular self-adaptive laser vitrectomy system comprises a dual-wavelength laser module, a scalpel head, a negative pressure suction unit, a medical medium perfusion unit and a control module, the dual-wavelength laser module comprises a laser head, a first laser source and a second laser source, the first laser source and the second laser source are connected to the laser head, and the first laser source is used for melting a transparent glass body; the second laser source is used for ablating blood-containing / turbid tissues; the scalpel head comprises a scalpel head body, an annular electrode and a pressure sensor, the scalpel head body is provided with a suction channel, the annular electrode and the pressure sensor are arranged at the end of the scalpel head body, the annular electrode is used for monitoring tissue contact pressure in real time, and the pressure sensor is used for monitoring intraocular pressure in real time; the negative pressure suction unit is connected with the suction channel; and the medical medium filling unit is connected with the suction channel. The device can assist in performing a vitrectomy operation, and operability and safety of the operation are improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to an intraocular adaptive laser vitrectomy system. Background Technology

[0002] Vitrectomy is a core procedure for treating retinal detachment, vitreous hemorrhage, and other fundus diseases. Traditional vitrectomy equipment has the following drawbacks: the surgery requires the use of multiple medical instruments, making the procedure relatively complex; and it is difficult to observe the lesion site when performing surgery in the presence of bloody / turbid tissue. Summary of the Invention

[0003] (a) Technical problems to be solved The technical problem to be solved by the present invention is that the existing vitrectomy procedure is relatively complicated and it is difficult to observe the lesion site during the operation.

[0004] (II) Technical Solution To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides an intraocular adaptive laser vitrectomy system, comprising a dual-wavelength laser module, a surgical blade, a negative pressure aspiration unit, a medical media infusion unit, and a control module; the dual-wavelength laser module includes a laser head, a first laser source, and a second laser source, the first laser source and the second laser source being respectively connected to the laser head, the first laser source being used to output a 1064nm pulsed laser to ablate clear vitreous humor; the second laser source being used to output a 2100nm pulsed laser to ablate blood-containing / turbid tissue; the surgical blade includes a blade body, a ring electrode, and a pressure sensor, the blade body having an aspiration channel, the ring electrode and the pressure sensor being located at the end of the blade body, the ring electrode being used to monitor tissue contact pressure in real time, and the pressure sensor being used to monitor intraocular pressure in real time; the negative pressure aspiration unit is connected to the aspiration channel; the medical media infusion unit is connected to the aspiration channel; the control module is electrically connected to the dual-wavelength laser module, the ring electrode, the pressure sensor, the negative pressure aspiration unit, and the medical media infusion unit.

[0005] Preferably, it further includes a first pipe, a second pipe, a first check valve, and a second check valve. The first pipe connects the negative pressure suction unit and the suction channel, and the second pipe connects the medical medium infusion unit and the suction channel. The first pipe is provided with a first check valve, and the second pipe is provided with a second check valve.

[0006] Preferably, the medical medium infusion unit has a heating module, which is used to heat the output medical medium to 35℃-38℃.

[0007] Preferably, the outer surface of the blade body is provided with a heparinized anti-protein adhesion coating.

[0008] Preferably, the medical medium infusion is used to inject silicone oil or expanding gas into the eyeball.

[0009] Preferably, an insulating ceramic layer is provided between the annular electrode and the cutter head body.

[0010] Preferably, the inner diameter of the suction channel is 0.3-0.5 mm.

[0011] Secondly, the present invention also provides a method of using an intraocular adaptive laser vitrectomy system, comprising the following steps: Make a scleral incision in the eyeball; The laser head passes through the scleral incision and enters the eyeball. The first laser source is activated to output a 1064nm pulsed laser to ablate the transparent vitreous body. The second laser source is then switched to output a 2100nm pulsed laser to ablate blood-containing / turbid tissue. The scalpel tip passes through the scleral incision and enters the eyeball. The scalpel tip is used to remove the lesion. During the operation, the negative pressure suction unit is activated to absorb the removed lesion fragments. After the surgery, a medical media infusion unit is used to infuse silicone oil or expanding gas into the eyeball to aid retinal recovery.

[0012] Preferably, the laser pulse energy of the first laser source is 50-200mJ, and the laser spot diameter is 50μm.

[0013] Preferably, the laser pulse energy of the second laser source is 100-300mJ.

[0014] Beneficial effects The above-described technical solution of the present invention has at least the following advantages: This invention utilizes a first laser source to output a 1064nm pulsed laser for ablation of the transparent vitreous body; and a second laser source to output a 2100nm pulsed laser for ablation of hemoglobinate / turbid tissues. This allows for preliminary treatment of the lesion site, and the ablation of hemoglobinate / turbid tissues facilitates observation of the intraocular pathology. A surgical blade allows for further excision of the lesion site. During excision, a negative pressure suction unit removes lesion fragments. After the surgery, a medical medium infusion unit injects silicone oil or expanding gas into the eye to aid retinal recovery. Throughout the entire surgical process, a ring electrode monitors the contact force, and a pressure sensor monitors the intraocular pressure, enhancing surgical safety. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the intraocular adaptive laser vitrectomy system provided in an embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure of the surgical blade provided in an embodiment of the present invention.

[0018] The labels for the attached figures are as follows: 1. Dual-wavelength laser module; 2. Surgical blade; 3. Negative pressure suction unit; 4. Medical medium infusion unit; 5. Control module; 6. First pipeline; 7. Second pipeline; 8. First one-way valve; 9. Second one-way valve; 11. Laser head; 12. First laser source; 13. Second laser source; 21. Blade body; 22. Ring motor; 23. Pressure sensor; 211. Suction channel; 212. Cutting blade. Detailed Implementation

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0020] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0021] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this invention will be described in more detail below with reference to specific embodiments: like Figure 1 and Figure 2 As shown, this embodiment of the invention provides an intraocular adaptive laser vitrectomy system, including a dual-wavelength laser module 1, a surgical blade 2, a negative pressure aspiration unit 3, a medical medium perfusion unit 4, and a control module 5; the dual-wavelength laser module 1 includes a laser head 11, a first laser source 12, and a second laser source 13, which are respectively connected to the laser head 11. The first laser source 12 is used to output a 1064nm pulsed laser to ablate the clear vitreous body; the second laser source 13 is used to output a 2100nm pulsed laser to ablate blood-containing / turbid tissue; the surgical blade 2 includes The device comprises a blade body 21, an annular electrode 22, and a pressure sensor 23. The blade body 21 has a suction channel 211. The annular electrode 22 and pressure sensor 23 are located at the end of the blade body 21. The annular electrode 22 is used to monitor tissue contact pressure in real time, and the pressure sensor 23 is used to monitor intraocular pressure in real time. A negative pressure suction unit 3 is connected to the suction channel 211. A medical medium infusion unit 2 is also connected to the suction channel 211. A control module 5 is electrically connected to the dual-wavelength laser module 1, the annular electrode 22, the pressure sensor 23, the negative pressure suction unit 3, and the medical medium infusion unit 4. Cutting blades 212 are arranged around the periphery of the blade body 21, and these blades are used to cut the lesion. Specifically, the pulse energy of the first laser source 12 is preferably 50-200mJ, and the spot diameter is 50μm, for ablation of transparent vitreous bodies; the pulse energy of the second laser source 13 is preferably 100-300mJ, for ablation of blood-containing / turbid tissues; furthermore, the first laser source 12 and the second laser source 13 can be connected by an optical fiber coupler to achieve rapid switching between the two laser sources.

[0023] In one embodiment, the system further includes a first pipe 6, a second pipe 7, a first one-way valve 8, and a second one-way valve 9. The first pipe 6 connects the negative pressure suction unit 3 and the suction channel 211, and the second pipe 7 connects the medical medium infusion unit 4 and the suction channel 211. The first pipe 6 is equipped with the first one-way valve 8, and the second pipe 7 is equipped with the second one-way valve 9. The first one-way valve 8 ensures that the lesion fragments sucked by the negative pressure suction unit 3 can only move in one direction, and the second one-way valve 9 ensures that the medical medium output by the medical medium infusion unit 4 can only flow in one direction.

[0024] In one embodiment, the medical medium infusion unit 4 has a heating module for heating the output medical medium to 35°C-38°C.

[0025] In one embodiment, the outer surface of the blade body 21 is provided with a heparinized anti-protein adhesion coating.

[0026] In one embodiment, the medical medium infusion 4 is used to inject silicone oil or expanding gas into the eyeball.

[0027] In one embodiment, an insulating ceramic layer is provided between the annular electrode 22 and the cutter head body 21 to prevent short circuits in the annular electrode 22.

[0028] In one embodiment, the inner diameter of the suction channel 211 is 0.3-0.5 mm.

[0029] Secondly, the present invention also provides a method of using an intraocular adaptive laser vitrectomy system, comprising the following steps: Make a scleral incision in the eyeball; The laser head passes through the scleral incision and enters the eyeball. The first laser source is activated to output a 1064nm pulsed laser to ablate the transparent vitreous body. The second laser source is then switched to output a 2100nm pulsed laser to ablate blood-containing / turbid tissue. The scalpel tip is inserted into the eyeball through the scleral incision. The lesion is removed using the scalpel tip. During the operation, the negative pressure suction unit is activated to absorb the removed lesion fragments. After the surgery, the medical media infusion unit 43 is used to infuse silicone oil or expanding gas into the eyeball to assist retinal recovery.

[0030] In one embodiment, the laser pulse energy of the first laser source 12 is 50-200mJ, and the laser spot diameter is 50μm.

[0031] In one embodiment, the laser pulse energy of the second laser source 13 is 100-300mJ.

[0032] The specific operation of the intraocular adaptive laser vitrectomy system provided in this embodiment is as follows: First, the eye is disinfected, local anesthesia is administered, and a scleral incision is made; Then, the laser head 11 is inserted into the eyeball through the scleral incision. The first laser source 12 is activated, and the laser head 11 outputs a 1064nm laser with the following parameters: laser energy of 150mJ, laser pulse frequency of 50Hz, and spot overlap rate of 30%. Then, the second laser source 13 is switched to output a 2100nm laser with the following parameters: laser energy of 200mJ and laser pulse frequency of 30Hz, for preliminary treatment of hematoma. Next, the surgical blade 2 is inserted into the eyeball through the scleral incision to further remove the remaining lesions. During the removal process, the negative pressure suction unit 3 is activated to remove the removed lesion fragments. During the operation, the contact force (threshold ≤ 5mN) is monitored by a ring electrode. The pressure sensor is linked to the negative pressure unit: when the intraocular pressure is > 20mmHg, the suction rate of the automatic negative pressure suction unit 3 is increased to -300mmHg; when the intraocular pressure is < 10mmHg, the suction rate of the negative pressure suction unit 3 is reduced to -50mmHg. After the lesion is removed, medical silicone oil is injected into the eyeball through the medical medium infusion unit 4 to maintain retinal adhesion; finally, the system is turned off, the blade is removed, and the incision closure is checked; residual medium is rinsed with balanced salt solution.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An intraocular adaptive laser vitrectomy system, characterized in that, include: A dual-wavelength laser module includes a laser head, a first laser source, and a second laser source. The first laser source and the second laser source are respectively connected to the laser head. The first laser source is used to output a 1064nm pulsed laser to ablate transparent vitreous bodies; the second laser source is used to output a 2100nm pulsed laser to ablate blood-containing / turbid tissues. The surgical blade includes a blade body, an annular electrode, and a pressure sensor. The blade body has a suction channel. The annular electrode and the pressure sensor are located at the end of the blade body. The annular electrode is used to monitor tissue contact pressure in real time, and the pressure sensor is used to monitor intraocular pressure in real time. A negative pressure suction unit is connected to the suction channel; A medical media infusion unit is connected to the suction channel; The control module is electrically connected to the dual-wavelength laser module, the ring electrode, the pressure sensor, the negative pressure suction unit, and the medical medium perfusion unit.

2. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, It also includes a first pipe, a second pipe, a first check valve, and a second check valve. The first pipe connects the negative pressure suction unit and the suction channel, and the second pipe connects the inert gas output unit and the suction channel. The first pipe is equipped with a first check valve, and the second pipe is equipped with a second check valve.

3. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The medical medium infusion unit has a heating module, which is used to heat the output medical medium to 35℃-38℃.

4. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The outer surface of the blade body is provided with a heparinized anti-protein adhesion coating.

5. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The medical medium infusion is used to inject silicone oil or expanding gas into the eyeball.

6. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, An insulating ceramic layer is provided between the annular electrode and the cutter head body.

7. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The inner diameter of the suction channel is 0.3-0.5 mm.

8. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The laser pulse energy of the first laser source is 50-200mJ, and the laser spot diameter is 50μm.

9. The intraocular adaptive laser vitrectomy system as described in claim 1, characterized in that, The laser pulse energy of the second laser source is 100-300mJ.

Images