Ophthalmologic operation assembly for taking out silicone oil

Abstract

The utility model relates to an ophthalmologic operation assembly for taking out silicone oil in the field of ophthalmologic operation instruments, which comprises an oil taking sleeve, a suction connector and an injector, the injector is connected with one end of the suction connector, the other end of the suction connector is in butt joint with the oil taking sleeve, the oil taking sleeve comprises a guide pipe, one end of the guide pipe is connected with a disc, and the disc is connected with the other end of the guide pipe. The center of the disc is communicated with the center of the oil taking sleeve; the suction connector comprises a connector matched and connected with the injector in a sleeved mode, the other end of the connector is connected with a silicon rubber sleeve in a sleeved mode, and the silicon rubber sleeve is used for abutting against the disc of the oil taking sleeve. The special oil extraction sleeve is designed for the operation assembly, so that the length of the sleeve is shortened, the flow resistance is reduced, the oil extraction speed can be effectively increased, the operation time is shortened, and the oil extraction operation efficiency is improved; by improving the silicone oil suction joint, the leakproofness of the connected injector can be better enhanced, negative pressure suction is ensured, meanwhile, the silicone oil suction joint is prevented from being in direct contact with an eyeball wall, and damage of negative pressure to sclera is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ophthalmic surgical instruments, in particular to an ophthalmic surgical assembly for silicone oil removal. BACKGROUND

[0002] Vitrectomy with silicone oil removal is a common surgical procedure in ophthalmology, mainly for the removal of silicone oil after its injection into the vitreous cavity due to improved condition or complications. Silicone oil is a common filler used in vitrectomy for complex vitreoretinal cases. By injecting silicone oil into the eye, it can stabilize the internal environment of the eyeball, support retinal recovery and healing. After filling the eye during surgery, it is usually removed about 3 months after surgery.

[0003] In recent years, vitrectomy with silicone oil removal usually uses minimally invasive technology. A 23G cannula is used to form a small incision in the pars plana and introduce the cannula into the eye through the puncture needle. Then, the syringe connected to the silicone oil suction adapter is aimed at the incision, and the negative pressure generated by hand pulling is used to safely and effectively guide the silicone oil out. However, the minimally invasive oil removal method still faces the problem of small scleral puncture hole diameter, making it difficult for silicone oil to flow smoothly, and the process is time-consuming. Slow oil removal speed may prolong the operation time, increase the risk of infection, and increase the complexity of surgical operation. Moreover, the silicone oil suction adapter directly contacts the eyeball wall during silicone oil removal, and the negative pressure generated by the syringe may cause damage to the sclera.

[0004] The risks, complexities, and damage problems in the aforementioned silicone oil removal surgery are largely due to the use of non-specialized instruments during the surgery. For example, the 23G cannula itself is 5mm long, making the silicone oil removal path long and the resistance large. The negative pressure of the silicone oil suction adapter directly contacting the eyeball wall may cause damage. Therefore, a special silicone oil removal instrument is needed to avoid the above problems. SUMMARY

[0005] The utility model provides an ophthalmic surgical assembly for silicone oil removal to address the problems in the prior art of silicone oil removal surgery. A special oil removal cannula is designed to shorten the tube length, reduce the flow resistance, effectively speed up the oil removal, shorten the operation time, and improve the efficiency of the oil removal surgery. By improving the silicone oil suction adapter, the airtightness of the connected syringe is better enhanced to ensure negative pressure suction, while avoiding direct contact of the silicone oil suction adapter with the eyeball wall to reduce the damage to the sclera caused by negative pressure.

[0006] The utility model discloses a kind of ophthalmic surgical components for silicon oil extraction, including oil extraction cannula, suction connector and syringe, the syringe is connected with the one end of suction connector, the other end of suction connector is butted with oil extraction cannula, it is characterized in that, the oil extraction cannula includes catheter and the disc connected with catheter one end, the center of the disc is communicated with the center of oil extraction cannula;The suction connector includes the joint of cooperation sleeve with the syringe, the other end of the joint is sleeved with silicone sleeve, and the silicone sleeve is used for abutting with the disc of oil extraction cannula.

[0007] For facilitating the introduction of oil extraction cannula into the eye, the catheter diameter of the oil extraction cannula is adapted to the puncture needle, for pushing the catheter of the oil extraction cannula into the eye through the puncture needle and abutting the disc on the surface of the eyeball.

[0008] To reduce the resistance of silicon oil extraction, the axial length of the oil extraction cannula is 2.0-2.5 mm.

[0009] Further, the thickness of the disc is 0.2-0.3 mm.

[0010] For facilitating the connection of the suction connector, the one end of the suction connector is adapted to the interface of the syringe, and the other end of the joint is fitted with the silicone sleeve, and the other end of the silicone sleeve is used for sealing abutting with the disc.

[0011] For facilitating the abutting butt joint of the disc and the silicone sleeve, the outer diameter of the disc is 1-2 mm larger than the outer diameter of the silicone sleeve.

[0012] Further, the specification of the syringe is 20 ml syringe, and the puncture needle and the suction connector are taken from the 23G vitrectomy surgical kit.

[0013] The ophthalmic surgical component for silicon oil extraction has the following advantages: the total length of the oil extraction cannula is shortened to 2.0-2.5 mm, the silicon oil extraction flow passage is shortened, the flow resistance is reduced, the oil extraction speed is effectively accelerated, the operation time is shortened, and the efficiency of the oil extraction operation is improved; the silicon oil suction connector with the silicone sleeve can better enhance the airtightness of the connected syringe, and directly sucking on the enlarged disc of the oil extraction cannula can reduce the damage to the sclera caused by the direct contact of the eyeball negative pressure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the ophthalmic surgical component for silicon oil extraction of the utility model.

[0015] Figure 2 It is a schematic diagram of the oil extraction cannula and the puncture needle.

[0016] Figure 3 It is a schematic diagram of the ophthalmic surgical component for silicon oil extraction of the utility model when extracting silicon oil.

[0017] In the diagram, 1 is the oil extraction cannula; 101 is the catheter; 102 is the disc; 2 is the suction connector; 201 is the connector; 202 is the silicone sleeve; 3 is the syringe; and 4 is the puncture needle. Detailed Implementation

[0018] The ophthalmic surgical component for silicone oil removal of this utility model and its method of use in surgery are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 — Figure 3 As shown, this is an ophthalmic surgical component for silicone oil removal according to the present invention, including an oil-removing cannula 1, an aspiration connector 2, and a syringe 3. During surgery, the syringe 3 is connected to one end of the aspiration connector 2, and the other end of the aspiration connector 2 is connected to the oil-removing cannula 1. Silicone oil can be aspirated through the syringe. The oil-removing cannula 1 includes a conduit 101 and a disc 102 integrally connected to one end of the conduit 101. The center of the disc 102 communicates with the center of the oil-removing cannula 101 to form an intraocular silicone oil outflow channel. The aspiration connector 2 includes a connector 201 that fits into the syringe 3. A silicone sleeve 202 is fitted onto the other end of the connector 201. The silicone sleeve 202 abuts against the disc 102 of the oil-removing cannula to form a sealed negative pressure cavity during aspiration.

[0020] To facilitate the insertion of the oil extraction cannula 1 into the eye during surgery, the diameter of the conduit 101 of the oil extraction cannula 1 is fitted to the outer diameter of the needle shaft of the puncture needle 4, so that the conduit 101 of the oil extraction cannula can be pushed into the eye through the puncture needle 4 and the disc 103 is attached to the surface of the eyeball; to reduce the resistance of silicone oil discharge, the axial length of the oil extraction cannula is 2.0 to 2.5 mm; the thickness of the disc is 0.2 to 0.3 mm.

[0021] To facilitate the connection of the aspiration connector 2, one end of the aspiration connector 2 is fitted with the interface diameter of the syringe 3. The other end of the connector 201 is fitted with a silicone sleeve 202. The other end of the silicone sleeve 202 is used to seal against the disc 102. To facilitate the contact and docking of the disc 102 and the silicone sleeve 202, the outer diameter of the disc 102 is 1-2 mm larger than the outer diameter of the silicone sleeve 202. To meet the needs of surgery, the puncture needle and aspiration connector are taken from the 23G vitrectomy surgical kit, and the syringe is a 20ml syringe.

[0022] The ophthalmic surgical component for silicone oil removal of this utility model is generally used in the following procedure:

[0023] How to use:

[0024] Connect the non-silicone end of the silicone oil suction connector with the silicone sleeve to a 20ml syringe;

[0025] After retrobulbar anesthesia of the patient, place two 23G trocars at 2:00 and 8:00, respectively, wherein the trocar at 8:00 is used to connect the perfusion head, then connect the oil extraction cannula to the puncture needle, and use the puncture needle to implant the oil extraction cannula into the eye at 10:00, and make the disc adhere to the surface of the eyeball;

[0026] Align the port of the silicone sleeve 202 connected to the suction connector 2 of the syringe 3 with the disc 102, and pull the syringe 3 piston handle by hand to generate negative pressure in the channel of the suction connector and the oil extraction cannula, so that the silicone oil is quickly guided out of the eye, and the needle end of the syringe handle can be clamped by a hemostatic forceps to maintain the negative pressure state;

[0027] Continue to suck until the oil-silicone interface is observed through the pupil, and then slightly adjust the position of the scleral puncture at the upper temple to be close to the tip of the eyeball to ensure that the silicone oil can still be smoothly extracted, and reduce the sudden change of intraocular pressure caused by sudden suction of the perfusion liquid;

[0028] Insert the flute-shaped needle from the scleral puncture at 10:00 several times in succession to sufficiently guide out the silicone oil in the vitreous cavity;

[0029] Sufficiently check the fundus to determine whether the silicone oil is completely extracted, and check whether some other fundus conditions that may exist still need to be treated.

[0030] After the above operations related to silicone oil extraction are completed, subsequent finishing operations are continued to complete the surgery.

[0031] The above-mentioned ophthalmic surgery assembly for silicone oil extraction of the utility model is used for silicone oil extraction surgery, is basically consistent with the original surgery operation process, is simple to operate, is easy to master, and has a simple design structure.

Claims

1. An ophthalmic surgical assembly for silicone oil removal, comprising an oil extraction cannula, an aspiration connector, and a syringe, wherein one end of the syringe is connected to the aspiration connector, and the other end of the aspiration connector is connected to the oil extraction cannula, characterized in that, The oil extraction sleeve includes a conduit and a disc connected to one end of the conduit, the center of the disc being connected to the center of the oil extraction sleeve; the suction connector includes a connector that fits into a syringe, the other end of the connector being fitted with a silicone sleeve, the silicone sleeve being used to abut against the disc of the oil extraction sleeve.

2. The ophthalmic surgical component for silicone oil removal according to claim 1, characterized in that, The diameter of the oil extraction cannula is adapted to the puncture needle, and it is used to push the oil extraction cannula into the eye through the puncture needle, with the disc abutting against the surface of the eyeball.

3. The ophthalmic surgical component for silicone oil removal according to claim 2, characterized in that, The axial length of the oil extraction casing is 2.0 to 2.5 mm.

4. The ophthalmic surgical component for silicone oil removal according to claim 2, characterized in that, The thickness of the disk is 0.2 to 0.3 mm.

5. The ophthalmic surgical component for silicone oil removal according to claim 2, characterized in that, One end of the suction connector is fitted with the interface diameter of the syringe, and the other end of the connector is fitted with the silicone sleeve. The other end of the silicone sleeve is used to seal against the disc.

6. The ophthalmic surgical component for silicone oil removal according to claim 5, characterized in that, The outer diameter of the disk is 1-2 mm larger than the outer diameter of the silicone sleeve.

7. The ophthalmic surgical component for silicone oil removal according to any one of claims 2-6, characterized in that, The syringe is a 20ml syringe, and the puncture needle and aspiration connector are taken from the 23G vitrectomy surgical kit.

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