A kind of ophthalmic iridotomy micro needle-nosed pliers

Abstract

An ophthalmic iridotomy micro needle-nosed pliers, it relates to the field of medical device technology, comprises a first tip, a second tip, a connector, a left handle, a right handle, a spring, a spring connector, the top of the first tip is provided with a first incision, the first incision is an arc-shaped sharp incision, the top of the second tip is provided with a second incision, the second incision is an arc-shaped sharp incision, the first tip is connected to the upper end of the left handle, the second tip is connected to the upper end of the right handle, the left handle and the right handle are hinged by a connector, one end of the spring is fixed on the right handle, the right handle is connected to the spring by a spring connector, and the other end of the spring is fixed on the left handle. After adopting the above technical scheme, the beneficial effects of the present invention are: it has the advantages of labor-saving clamping, convenient surgical operation, can be used repeatedly, and can avoid bleeding when pressurized.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a pair of ophthalmic iridotomy micro needle-nosed pliers. Background Art

[0002] During ophthalmic vitrectomy, for complex fundus surgery, the vitreous cavity often needs to be filled with silicone oil after the operation as a vitreous substitute to reposition the detached retina. For eyes without a lens, due to the communication between the anterior and posterior chambers, after the silicone oil filling operation, the silicone oil is easy to enter the anterior chamber due to the body position and gravity, and the angle of the chamber is filled with silicone oil, which blocks the outflow of aqueous humor and causes secondary high intraocular pressure. In order to prevent silicone oil from entering the anterior chamber, a peripheral incision is often made at the root of the iris at the lower six points to form a communication opening. After the operation, the prone position is used to allow the aqueous humor of the posterior chamber to flow into the anterior chamber, and the aqueous humor flows out through the angle of the chamber to achieve intraocular pressure balance. Currently, a vitrectomy head is often used in clinical practice to cut the tissue of the iris root below and artificially form a peripheral incision. When the vitrectomy head is performing iridotomy, different shapes are often cut because each person has different experience and techniques. In addition, the suction force is not well controlled during cutting, which can easily cause the circumferential incision to be too large or too small, resulting in double pupils, pupil displacement, and even the removal of large blood vessels, causing secondary anterior chamber hemorrhage. The probability of the circumferential incision being blocked again is high. Summary of the invention

[0003] The purpose of the present invention is to provide an ophthalmic iridotomy micro needle-nosed pliers in view of the defects and shortcomings of the prior art. The micro needle-nosed pliers can enter the eye through a small corneal incision to clamp the root of the iris, thereby facilitating surgical operations; the cutting force can be controlled, and double pupils, pupil displacement, secondary anterior chamber hemorrhage, and re-blockage of the circumferential incision will not occur.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a first tip, a second tip, a connecting piece, a left handle, a right handle, a spring, and a spring connecting piece. The top end of the first tip is provided with a first incision, which is an arc-shaped sharp incision. The top end of the second tip is provided with a second incision, which is an arc-shaped sharp incision. The first tip is connected to the upper end of the left handle, and the second tip is connected to the upper end of the right handle. The left handle and the right handle are hinged by the connecting piece to form an X-shaped cross structure. One end of the spring is fixed on the right handle, and the other end of the spring is fixed on the left handle. The spring connecting piece is provided on the spring of one of the left handle or the right handle.

[0005] The structure of the first incision is the same as that of the second incision.

[0006] The spring is fixed at different horizontal positions of the left handle and the right handle.

[0007] The length of the left handle is longer than the length of the first tip.

[0008] The length of the right handle is longer than the length of the second tip.

[0009] The spring connector is an adjusting screw, which can adjust the tightness of the spring. For patients with iris tissue hypertrophy, in order to expand the opening formed by the first tip and the second tip, the adjusting screw can be rotated counterclockwise to expand the distance between the left and right handles. The working principle of the present invention is as follows: the first tip and the second tip constitute microscopic nose pliers, and the first incision and the second incision are arc-shaped sharp incisions. Therefore, when the microscopic needle-nosed pliers are closed, they can enter the anterior chamber of the eye through a 2mm corneal limbus incision, and then open to enter the iris root under the eye, and then close the pliers to cut the iris tissue. At the same time, the microscopic needle-nosed pliers can be reused repeatedly, and eye bleeding can be avoided when pressurized. The spring controls the opening of the left handle and the right handle. The compression elastic force of the spring cooperates with the force used by the hand to control the opening and closing of the left handle and the right handle, and then the force used when using the microscopic needle-nosed pliers can be controlled, so that the spring has the function of controlling the force, thereby saving effort in clamping. During the operation, the use of the microscopic needle-nosed pliers can well control the cutting force, so that the size of the circumferential incision is consistent, and there will be no double pupils, pupil displacement, removal of large blood vessels, secondary anterior chamber bleeding, and re-blockage of the circumferential incision, making the iris circumcision in ophthalmic vitrectomy surgery more reliable.

[0010] Compared with the existing iris circumferential resection technology with a vitreous cutting head, the above technical solution has the following effects:

[0011] The ophthalmic iridotomy micro needle-nosed pliers of the present invention adopt a first tip and a second tip with an arc-shaped sharp incision, which can conveniently cut iris tissue. The first tip and the second tip are connected by a left handle and a right handle to form an X-shaped openable and closable structure, which can facilitate the manipulation of the first tip and the second tip during surgery. In particular, a spring is arranged between the left handle and the right handle, and the left handle, the right handle, the first tip and the second tip are always kept in an open state through the elastic force of the spring, so that clamping is more labor-saving and surgical operation is convenient. When performing iridotomy, the cutting force is easy to control, so that the size of the iridotomy is more uniform, the safety is higher, the ophthalmic surgery is more reliable, and the present invention can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2It is a schematic diagram of the structure of the tip in the present invention.

[0015] Explanation of the reference numerals: first tip 1 , first incision 11 , second tip 2 , second incision 21 , connector 3 , left handle 4 , right handle 5 , spring 6 , spring connector 7 . DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 2 As shown, the technical solution adopted in this specific embodiment is that it includes a first tip 1, a first incision 11, a second tip 2, a second incision 21, a connector 3, a left handle 4, a right handle 5, a spring 6, and a spring connector 7. The top of the first tip 1 is provided with a first incision 11, and the first incision 11 is an arc-shaped sharp incision. The top of the second tip 2 is provided with a second incision 21, and the second incision 21 is an arc-shaped sharp incision. The arc-shaped sharp incisions of the first incision 11 and the second incision 21 correspond to each other in position. The first tip 1 is welded to the right handle 5 to form a whole, and the second tip 2 is welded to the left handle 4 to form a whole. The first tip 1, the second tip 2, the left handle 4, and the right handle 5 are hinged by the connector 3, so that the first tip 1 and the second tip 2 can move flexibly, and the left handle 4 and the right handle 5 can move flexibly. One end of the spring 6 is fixed on the right handle 5, and the right handle 5 is connected to the spring 6 by a spring connector 7, and the spring connector is an adjusting screw, which can adjust the tightness of the spring. The other end of the spring 6 is fixed on the left handle 4, and the spring 6 controls the opening of the left handle 4 and the right handle 5. The compression elastic force of the spring 6 cooperates with the hand to control the opening and closing of the left handle 4 and the right handle 5, so as to control the force used when using the micro needle-nosed pliers, so that the spring 6 has the function of controlling the force. The first tip 1, the first incision 11, the second tip 2, the second incision 21, the connecting piece 3, the left handle 4, the right handle 5, the spring 6, and the spring connecting piece 7 constitute an ophthalmic iris peripheral The first tip 1, the second tip 2, the left handle 4 and the right handle 5 of the microscopic iris cutting pliers are all made of medical aluminum alloy. Aluminum alloy is the most widely used type of non-ferrous metal structural material in industry. Aluminum alloy usually uses alloy elements such as copper, zinc, manganese, silicon and magnesium. Aluminum alloy has low density but relatively high strength, which is close to or exceeds that of high-quality steel. It has good plasticity and can be processed into various profiles. It has excellent electrical conductivity, thermal conductivity and corrosion resistance. The ophthalmic iris circumferential cutting microscopic needle-nosed pliers made of medical aluminum alloy have high strength and strong corrosion resistance.

[0017] The working principle of the present invention is as follows: the first tip and the second tip constitute a microscopic nose pliers, and the first incision and the second incision are arc-shaped sharp incisions. Therefore, when the microscopic needle-nosed pliers are closed, they can enter the anterior chamber of the eye through a 2mm corneal limbus incision, and then open to enter the iris root under the eye, and then close the mouth pliers to cut the iris tissue. At the same time, the microscopic needle-nosed pliers can be reused repeatedly, and eye bleeding can be avoided when pressurized. The spring controls the opening of the left handle and the right handle. The compression elastic force of the spring cooperates with the hand to control the opening and closing of the left handle and the right handle, and then the force used when using the microscopic needle-nosed pliers can be controlled, so that the spring has the function of controlling the force, thereby saving effort in clamping. During the operation, the use of the microscopic needle-nosed pliers can well control the cutting force, so that the size of the circumferential incision is consistent, and there will be no double pupils, pupil displacement, removal of large blood vessels, secondary anterior chamber bleeding, and re-blockage of the circumferential incision, making the iris circumcision in ophthalmic vitrectomy surgery more reliable.

[0018] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An ophthalmic iridotomy micro needle-nosed pliers, characterized by: It is composed of a first tip, a second tip, a connector, a left handle, a right handle, a spring, and a spring connector. The top of the first tip is provided with a first incision, which is an arc-shaped sharp incision. The top of the second tip is provided with a second incision, which is an arc-shaped sharp incision. The first tip is connected to the upper end of the left handle, and the second tip is connected to the upper end of the right handle. The left handle and the right handle are hinged by the connector to form an X-shaped cross structure. One end of the spring is fixed to the right handle, and the other end of the spring is fixed to the left handle. The spring connector is provided on the spring of one of the left handle or the right handle. The spring connector is an adjusting screw; The arc-shaped sharp incision positions of the first incision and the second incision correspond to each other; The structure of the first incision is the same as that of the second incision; When the micro needle-nosed forceps are closed, they enter the anterior chamber of the eye through a 2 mm corneal limbus incision, then open to enter the iris root under the eye, and then close to cut the iris tissue.

2. The ophthalmic iridotomy micro needle-nosed pliers according to claim 1, characterized in that: The spring is fixed at different horizontal positions of the left handle and the right handle.

3. The ophthalmic iridotomy micro needle-nosed pliers according to claim 1, characterized in that: The length of the left handle is longer than the length of the first tip, and the length of the right handle is longer than the length of the second tip.

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