Absorption structure for vitrectomy

Abstract

The utility model discloses an adsorption structure for vitrectomy, which relates to the field of medical instruments and comprises a positioning ring seat, a mounting port is arranged on the positioning ring seat, a positioning rod is connected in the mounting port, a control handle is fixedly mounted at the tail end of the positioning rod, an adsorption mechanism is arranged in the positioning ring seat, and the adsorption mechanism is connected with the positioning rod. The adsorption mechanism comprises an adsorption base fixedly installed in the positioning ring base, an adsorption groove is formed in the bottom of the adsorption base, a light guide hole is formed in the adsorption base, a gas pipeline is connected to the adsorption base, a control mechanism is arranged at the tail end of the gas pipeline, a butt joint opening is formed in the adsorption base, and a gas outlet is formed in the butt joint opening. A positioning cutter groove is formed in the bottom of the adsorption base, and a hot cutter is arranged in the positioning cutter groove. According to the adsorption structure for the vitrectomy operation, through cooperative use of the adsorption mechanism and the control mechanism, rapid positioning of the cornea can be achieved, and the cornea is prevented from moving at will in the operation process.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically an adsorption structure for vitreous cutting surgery. Background Technology

[0002] Vitrectomy is a high-level modern microsurgical procedure that, since its development in the early 1970s, is considered a major revolution in the history of ophthalmology. This surgery aims to restore the transparency of the refractive media and promote retinal repositioning by removing the cloudy vitreous humor or relieving vitreoretinal traction, thereby treating vitreoretinal diseases and helping patients regain visual function. The surgery is performed under a microscope, utilizing an advanced vitrectomy machine's power system to precisely cut and aspirate the diseased vitreous humor and retinal portions.

[0003] During vitrectomy, the first step is to make an incision at the junction of the cornea and sclera. This step is crucial because it allows surgical instruments to enter the eyeball for precise manipulation. However, during the procedure, corneal movement can cause the incision to enlarge. This not only increases surgical risks but may also prolong healing time, causing more discomfort and a longer recovery period for the patient. To prevent this, a suction structure for vitrectomy is proposed to position the cornea. Utility Model Content

[0004] The purpose of this invention is to provide an adsorption structure for vitrectomy surgery to solve the problem of enlarged incisions caused by corneal movement in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vitreous surgery adsorption structure, including a positioning ring seat, an installation port on the positioning ring seat, a positioning rod connected inside the installation port, a control handle fixedly installed at the end of the positioning rod, an adsorption mechanism inside the positioning ring seat, the adsorption mechanism including an adsorption base fixedly installed inside the positioning ring seat, an adsorption groove at the bottom of the adsorption base, a light guide hole on the adsorption base, a gas pipe connected to the adsorption base, and a control mechanism at the end of the gas pipe.

[0006] Preferably, the adsorption base has a connection interface, the bottom of the adsorption base has a positioning groove, and a hot cutting knife is provided in the positioning groove.

[0007] Preferably, the positioning ring seat has a slot inside, and the adsorption base is installed in the positioning ring seat through the slot.

[0008] Preferably, the positioning rod is fixedly installed on the positioning ring seat through the mounting port, one end of the gas pipe is connected to the adsorption base through the mating interface, the hot cutting knife is installed at the bottom of the adsorption base through the positioning knife groove, and a light guiding fiber is provided in the light guide hole, and the light guiding fiber passes through the adsorption base through the light guide hole.

[0009] Preferably, the control mechanism includes a control cylinder fixedly installed inside the control handle, a connecting pipe fixedly installed on the control cylinder, a piston movably installed inside the control cylinder, a return spring provided on one side of the piston, a drive rod fixedly installed on the piston, a connecting block fixedly installed at the end of the drive rod, and a control slider fixedly installed on the connecting block.

[0010] Preferably, the control cylinder body has a through hole at its rear end, and the drive rod extends out of the control cylinder body through the through hole.

[0011] Preferably, the drive rod is slidably mounted in the control cylinder via a piston, one end of the return spring is connected to the piston, the other end of the return spring is connected to the rear end of the control cylinder, one end of the gas pipeline is connected to the control cylinder via a connecting pipe, and the other end of the gas pipeline is connected to the adsorption groove via a connecting pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This application achieves precise corneal adsorption and positioning by extracting gas from the adsorption groove to create a negative pressure environment, effectively preventing unintended corneal movement during surgery. Once positioning is complete, the thermal cutter contacts the junction of the cornea and sclera. Once the thermal cutter's power is activated, an incision is rapidly formed at the corneal-scleral junction. Furthermore, a light-guiding fiber can extend into the eyeball through a light guide aperture to provide necessary illumination.

[0014] In this application, during the backward movement of the control slider, it drives the drive rod to move backward, which in turn pulls the piston to the rear end of the control cylinder, drawing out the gas from the adsorption groove and achieving precise corneal positioning. Furthermore, when the control slider is released, the return spring drives the piston forward, re-sending the gas from the gas pipe into the adsorption groove, thereby achieving rapid corneal release. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the adsorption mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the control mechanism of this utility model.

[0019] The diagram shows the following components: 1. Positioning ring seat; 2. Mounting port; 3. Positioning rod; 4. Control handle; 5. Adsorption mechanism; 501. Adsorption base; 502. Connecting interface; 503. Gas pipe; 504. Light guide hole; 505. Adsorption groove; 506. Hot cutting knife; 507. Positioning knife groove; 6. Control mechanism; 601. Control slider; 602. Control cylinder; 603. Piston; 604. Connecting pipe interface; 605. Connecting block; 606. Drive rod; 607. Return spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for an adsorption structure for vitrectomy surgery. The adsorption structure for vitrectomy surgery includes a positioning ring seat 1, an installation port 2 on the positioning ring seat 1, a positioning rod 3 connected inside the installation port 2, a control handle 4 fixedly installed at the end of the positioning rod 3, an adsorption mechanism 5 inside the positioning ring seat 1, and a control mechanism 6 at the end of the gas pipe 503. Through the cooperation of the adsorption mechanism 5 and the control mechanism 6, the cornea can be quickly positioned, preventing the cornea from moving randomly during the operation.

[0022] like Figure 2 and Figure 3 As shown, the adsorption mechanism 5 includes an adsorption base 501 fixedly installed in the positioning ring seat 1. The bottom of the adsorption base 501 has an adsorption groove 505, and the adsorption base 501 has a light guide hole 504. A gas pipe 503 is connected to the adsorption base 501, and a docking interface 502 is provided on the adsorption base 501. The bottom of the adsorption base 501 has a positioning knife groove 507, and a hot cutting knife 506 is provided in the positioning knife groove 507. The positioning ring seat 1 has a slot inside, and the adsorption base 501 is installed in the positioning ring seat 1 through the slot. The hot cutting knife 506 is installed at the bottom of the adsorption base 501 through the positioning knife groove 507. A light guide fiber is provided in the light guide hole 504, and the light guide fiber passes through the adsorption base 501 through the light guide hole 504.

[0023] Specifically, by drawing out the gas from the adsorption groove 505, a negative pressure environment is created, allowing the cornea to be precisely adsorbed and positioned at the bottom of the adsorption base 501. This adsorption positioning technology ensures that the cornea does not move unnecessarily during the procedure, thus improving the precision and safety of the surgery. Once the cornea is stably adsorbed at the bottom of the adsorption base 501, the thermal cutter 506 is precisely placed at the junction of the cornea and sclera. When the power to the thermal cutter 506 is turned on, it quickly makes a precise incision at the junction of the cornea and sclera. Furthermore, a light-guiding fiber can extend into the eyeball through the light guide hole 504 to provide necessary illumination to the surgical area, ensuring that the surgeon can clearly see every detail of the procedure.

[0024] like Figure 2 and Figure 4 As shown, the control mechanism 6 includes a control cylinder 602 fixedly installed inside the control handle 4. A connecting pipe 604 is fixedly installed on the control cylinder 602. A piston 603 is movably installed inside the control cylinder 602. A return spring 607 is provided on one side of the piston 603. A drive rod 606 is fixedly installed on the piston 603. A connecting block 605 is fixedly installed at the end of the drive rod 606. A control slider 601 is fixedly installed on the connecting block 605. A through hole is opened at the rear end of the control cylinder 602, and the drive rod 606 extends out of the control cylinder 602 through the through hole.

[0025] Specifically, when the operator moves the control slider 601 backward, the slider will drive the drive rod 606 backward through a mechanical linkage mechanism. As the drive rod 606 moves backward, it applies force to the piston 603, causing the piston 603 to move towards the rear end of the control cylinder 602. This movement effectively draws out the gas in the adsorption groove 505, thereby achieving precise positioning of the cornea. When the operator releases the control slider 601, the return spring 607 then activates, pushing the piston 603 forward to return to its initial position. The forward movement of the piston 603 causes the gas in the gas channel 503 to be returned to the adsorption groove 505. This action helps to quickly release the cornea, ensuring the smoothness of the entire process and the safety of the cornea.

[0026] Working principle: During use, the adsorption base 501 is moved to the cornea on the eyeball. After the adsorption base 501 is in place, the control slider 601 can be moved backward. Moving the control slider 601 backward will drive the drive rod 606 to move backward. The drive rod 606 will then pull the piston 603 to the rear end of the control cylinder 602. When the piston 603 moves to the rear end of the control cylinder 602, it will draw out the gas in the adsorption groove 505, creating a negative pressure state inside the adsorption groove 505, thereby adsorbing and positioning the cornea on the adsorption base 501. At the bottom, to prevent the cornea from moving freely during the operation, and after the cornea is attached to the bottom of the suction base 501, the hot cutting blade 506 will abut against the connection between the cornea and sclera. After the power of the hot cutting blade 506 is turned on, the hot cutting blade 506 will quickly make an incision at the connection between the cornea and sclera. After the operation is completed, the control slider 601 can be released. After the control slider 601 is released, the return spring 607 will drive the piston 603 to move forward. After the piston 603 moves forward, it will send the gas in the gas pipe 503 back into the suction groove 505, thereby quickly releasing the cornea.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vitreous surgery suction structure, comprising a positioning ring seat (1), wherein the positioning ring seat (1) has an installation port (2), a positioning rod (3) is connected inside the installation port (2), and a control handle (4) is fixedly installed at the end of the positioning rod (3), characterized in that: The positioning ring seat (1) is provided with an adsorption mechanism (5). The adsorption mechanism (5) includes an adsorption base (501) fixedly installed in the positioning ring seat (1). The bottom of the adsorption base (501) is provided with an adsorption groove (505). The adsorption base (501) is provided with a light guide hole (504). The adsorption base (501) is connected with a gas pipe (503). The end of the gas pipe (503) is provided with a control mechanism (6).

2. The adsorption structure for vitreous surgery according to claim 1, characterized in that: The adsorption base (501) has an interface (502) and a positioning groove (507) at the bottom. A hot cutting blade (506) is provided in the positioning groove (507).

3. The adsorption structure for vitreous surgery according to claim 2, characterized in that: The positioning ring seat (1) has a slot inside, and the adsorption base (501) is installed in the positioning ring seat (1) through the slot.

4. The vitreous surgery adsorption structure according to claim 3, characterized in that: The positioning rod (3) is fixedly installed on the positioning ring seat (1) through the mounting port (2). One end of the gas pipe (503) is connected to the adsorption base (501) through the interface (502). The hot cutting knife (506) is installed at the bottom of the adsorption base (501) through the positioning knife groove (507). The light guide hole (504) is provided with a light guide fiber, and the light guide fiber passes through the adsorption base (501) through the light guide hole (504).

5. The adsorption structure for vitreous surgery according to claim 4, characterized in that: The control mechanism (6) includes a control cylinder (602) fixedly installed in the control handle (4), a connecting pipe (604) fixedly installed on the control cylinder (602), a piston (603) movably installed in the control cylinder (602), a return spring (607) provided on one side of the piston (603), a drive rod (606) fixedly installed on the piston (603), a connecting block (605) fixedly installed at the end of the drive rod (606), and a control slider (601) fixedly installed on the connecting block (605).

6. The vitreous surgery adsorption structure according to claim 5, characterized in that: The control cylinder (602) has a through hole at its rear end, and the drive rod (606) extends out of the control cylinder (602) through the through hole.

7. The adsorption structure for vitreous surgery according to claim 6, characterized in that: The drive rod (606) is slidably mounted in the control cylinder (602) via the piston (603). One end of the return spring (607) is connected to the piston (603), and the other end of the return spring (607) is connected to the rear end of the control cylinder (602). One end of the gas pipe (503) is connected to the control cylinder (602) via the connecting pipe (604), and the other end of the gas pipe (503) is connected to the adsorption groove (505) via the connecting port (502).

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