Phacoemulsification aspiration sleeve for intraocular and extraocular penetration and perfusion confirmation of glaucoma tube surgery

Abstract

The present invention relates to an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion, which allows determining whether aqueous humor communication between the inside and outside of the eye is smooth through a microtube implanted in the eye during glaucoma tube surgery. The sleeve is characterized by having a rigid branch tube made of a material harder than a sleeve made of a soft material, provided in a perfusion port that allows the injection of a balance salt solution into the eye, and with the branch tube connected to the perfusion port, the tip of the branch tube protrudes further than the tip of the Paco tip, and the end of the microtube inside the eye is connected to the tip of the branch tube, so that the establishment of aqueous humor communication of the microtube can be quickly and accurately and sensorially confirmed based on the pattern of pressure change in the conjunctival area and surrounding blood flow change that occurs when the balance salt solution leaks out of the eye.

Description

Technology Field

[0001] The present invention relates to an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion, which allows for the sensory and active rapid and accurate verification of whether fluid circulation between the inside and outside of the eye is smooth through a microtube implanted in the eye during glaucoma tube surgery. Background Technology

[0002] Glaucoma is a disease in which the production and drainage of aqueous humor are not balanced, causing intraocular pressure to rise, and the elevated intraocular pressure compresses the optic nerve or disrupts blood supply, leading to vision loss or blindness. A glaucoma tube surgery is known in which a microtube capable of facilitating aqueous humor communication (drainage) is inserted at the boundary between the inside and outside of the eyeball to maintain appropriate intraocular pressure.

[0003] In glaucoma tube surgery, two types of XEN tubes (XEN ® Gel stents are commonly used, but other shapes, such as shape memory polymer tubes and silicone tubes, may also be used.

[0004] Meanwhile, in current glaucoma tube surgery, no means or procedures have been proposed to quickly and accurately determine or confirm whether aqueous humor communication is established inside and outside the eye immediately after the microtube is implanted in the eye. Prior art literature

[65535] Patent Document 1: U.S. Published Patent Application US 2006 / 0195055 (Published Aug. 31, 2006) The problem to be solved

[0005] The purpose of the present invention is to propose an ophthalmic phacoemulsification sleeve for verifying intraocular and extraocular penetration and perfusion, which enables rapid and accurate determination and verification of whether aqueous humor communication is smooth through a microtube implanted in the eye during glaucoma tube surgery. means of solving the problem

[0006] An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to one aspect of the present invention is characterized in that a branch tube is integrally formed in one of the perfusion ports that allow injection of a balance salt solution into the eye, the tip of the branch tube protrudes more with respect to the tip of the sleeve than the tip of the Paco tip, and the end of a microtube implanted in the eye is fitted into the tip of the branch tube so that the establishment of aqueous humor communication of the microtube can be sensibly confirmed based on the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when the balance salt solution flows out of the eye through the microtube.

[0007] According to another aspect of the present invention, an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion is characterized in that a branch tube is integrally formed in one of the perfusion ports of the sleeve that allow injection of a balance salt solution into the eye, a hollow needle that is harder than the branch tube is coupled to the branch tube, and while the hollow needle is coupled to the branch tube, the tip of the hollow needle protrudes further relative to the tip of the sleeve than the tip of the Paco tip, and the end of a microtube implanted in the eye is fitted into the tip of the hollow needle so that the establishment of aqueous humor communication of the microtube can be sensibly confirmed based on the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when the balance salt solution flows out of the eye through the microtube.

[0008] According to another aspect of the present invention, an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion is characterized in that a branch tube, which is harder than the sleeve, is coupled to one of the perfusion ports that allow the injection of a balance salt solution into the eye, and while the branch tube is coupled to one of the perfusion ports, the tip of the branch tube protrudes more with respect to the tip of the sleeve than the tip of the Paco tip, and the end of a microtube implanted in the eye is fitted into the tip of the branch tube so that the establishment of aqueous humor communication of the microtube can be sensibly determined / confirmed from the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when the balance salt solution flows out of the eye through the microtube.

[0009] Other configurations of the present invention will be specifically discussed in the embodiments described below. Effects of the invention

[0010] According to the present invention, when the end of a microtube protruding slightly inside the eyeball is fitted to the tip of a branch tube to allow the balance salt solution to be discharged into the subconjunctival space outside the eyeball, the surgeon can easily perceive changes in pressure in the conjunctival area and changes in blood flow around the microtube through sensory perception, and based on the degree or pattern of these changes in pressure and blood flow, the surgeon can quickly and accurately determine and confirm whether aqueous humor communication of the microtube is established.

[0011] In addition, if the flow path of the microtube narrows or becomes blocked during follow-up after surgery and revision is required, the microtube can be effectively corrected (opened) by the ophthalmic ultrasonic emulsification sleeve of the present invention for verifying intraocular and extraocular penetration and perfusion.

[0012] In addition, if an inner diameter expansion section is formed at the tip of the branch pipe, it offers high versatility as even microtubes with slightly different outer diameters can be connected to the branch pipe. Brief explanation of the drawing

[0013] FIG. 1 is a drawing showing an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to a first embodiment of the present invention. FIG. 2 is a drawing showing an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to a second embodiment of the present invention. FIG. 3 is a drawing showing an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to a third embodiment of the present invention. FIG. 4 is a drawing showing an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to the fourth embodiment of the present invention. FIG. 5 is a partial cross-sectional view illustrating some modified examples of a branch tube provided in the ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to the present invention, wherein (A) is a case where an inner diameter expansion portion is formed at the tip of the branch tube, (B) is a case where an inner diameter expansion portion is formed at the end of a metal hollow needle fitted to the tip of the branch tube, and (C) is a case where a coupling rim is formed at the base of the branch tube. FIG. 6 is a partial cross-sectional view showing a modified example of an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to the present invention, in which a guide portion is provided on the inner surface of the sleeve to allow the equilibrium salt solution to flow into the branch tube. FIG. 7 is a drawing showing an example of a Phaco Handpiece to which an ophthalmic ultrasonic phacoemulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to the present invention can be applied. FIG. 8 is a drawing showing an example of the usage state of an ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion according to the third embodiment of the present invention. Specific details for implementing the invention

[0014] Hereinafter, some embodiments according to the present disclosure are described based on the accompanying drawings, and detailed descriptions of known configurations and functions that are deemed to obscure the essence of the invention will be omitted.

[0015] In the attached drawings, the same reference numerals are assigned to identical components, even if they are shown in other drawings.

[0016] Expressions such as "includes," "has," and "consists of" may include cases where other parts or components are added, unless "only" is used in the preceding part.

[0017] Terms such as "connection, combination, and connection" indicating the combined relationship between components may include not only cases where the components are directly "connected, combined, or connected," but also cases where other components other than those components are interposed to "connect, combined, or connected."

[0018] When a temporal sequence is described using expressions such as "after, following, next, before," etc., it may include cases that are not continuous unless terms such as "immediately" or "directly" are used.

[0019] Furthermore, where numerical values ​​of components or corresponding information (e.g., levels, etc.) are mentioned, such numerical values ​​or corresponding information may be interpreted to include error ranges caused by various factors (e.g., process factors, internal / external shocks, noise, etc.), even without explicit description.

[0020] [Example]

[0021] FIG. 1 is a drawing showing a first embodiment of an ophthalmic ultrasonic emulsification sleeve (hereinafter simply referred to as "sleeve") for confirming intraocular and extraocular penetration and perfusion according to the present invention.

[0022] The sleeve (100) of the first embodiment is made of a soft material such as silicone, and two tube ports (110) are formed facing each other near the tip of the sleeve (100).

[0023] And the branch pipe (120), which is a main component of the present invention, is integrally formed in one of the two pipe ports (110). The material of the branch pipe (120) may be the same material as the sleeve (100) or a different material.

[0024] A flow path is formed within the branch tube (120) to allow the balance salt solution (BSS), which has flowed into the base portion connected to the irrigation port (110), to flow out into the subconjunctival space outside the eye through a microtube connected to the tip portion of the branch tube (120). It is preferable that the inner diameter of the base portion of the branch tube (120) is larger than the inner diameter of the tip portion, and that the inner diameter of the tip portion is slightly larger than or fits snugly with the outer diameter of the microtube.

[0025] Additionally, the tip of the branch pipe (120) protrudes further relative to the tip of the sleeve (100) than the tip of the Phaco Tip exemplified in FIG. 7.

[0026] Next, a sleeve (100A) according to a second embodiment of the present invention will be described with reference to FIG. 2.

[0027] Similar to the first embodiment described above, the sleeve (100A) of the second embodiment is also made of a flexible material, and two tube ports (110) are formed near the tip of the sleeve (100A).

[0028] A hollow needle (130) made of a material harder than the branch pipe (120A) is fitted into the tip of a branch pipe (120A) integrally provided in one of the branch pipe ports (110). The tip of the hollow needle (130) may protrude further than the tip of the branch pipe (120A).

[0029] Next, a sleeve (100B) according to a third embodiment of the present invention will be described with reference to FIG. 3.

[0030] Unlike the first embodiment, the sleeve (100B) of the third embodiment may be configured such that a separately manufactured branch pipe (120B) is connected to one of the pipe supply ports (110) of the sleeve (100B). For example, a flange portion may be formed at the base of the branch pipe (120B), and this flange portion may be joined or bonded to the circumference of one of the pipe supply ports (110) of the sleeve (100B).

[0031] It is preferable that the branch pipe (120B) be made of a material harder than the sleeve (100B).

[0032] Next, a sleeve (100C) according to a fourth embodiment of the present invention will be described with reference to FIG. 4.

[0033] Similar to the third embodiment described above, the sleeve (100C) of the fourth embodiment may also be configured such that a separately manufactured branch pipe (120C) is connected to one of the pipe injection ports (110).

[0034] Additionally, a rigid hollow needle (130) made of a material harder than the branch pipe (120C) may be inserted into the tip of the branch pipe (120C). In this case, the tip of the hollow needle (130) may coincide with the tip of the branch pipe (120C) or protrude further than the tip of the branch pipe.

[0035] In addition to the aforementioned embodiments, various variations may exist.

[0036] As such variations, as shown in FIG. 5 (A), an inner diameter expansion portion (1201) may be formed at the tip of the branch pipe (120, 120B), as shown in FIG. 5 (B), an inner diameter expansion portion (1301) may be formed at the tip of the hollow needle (130), and as shown in FIG. 5 (C), a connecting rim (1202) having a groove (1203) into which the circumference of the pipe port (110) is elastically fitted may be formed at the base of the branch pipe (120A, 120C).

[0037] In FIG. 5 (A) and (B), the inner diameter expansion section (1201, 1301) has a shape in which the inner diameter gradually decreases, but it may be the same throughout the entire section of the inner diameter expansion section.

[0038] In addition, as shown in FIGS. 6 (A) to (D), a guide portion (101) that allows the equilibrium salt solution to flow into the branch pipe (120, 120A, 120B, 120C) may be formed on the inner surface of the sleeve (100, 100A, 100B, 100C).

[0039] The guide portion (101) may be a channel that is concavely recessed into the inner surface of the flexible sleeve, or a low-height wall that is convexly protruding from the inner surface of the sleeve as shown in FIG. 6. If the guide portion (101) is a channel, one end of the channel is connected to the irrigation port (110) so that the equilibrium salt solution can easily flow into the irrigation port (110). If the guide portion (101) is a low-height wall, it is formed in the section between the tip of the sleeve and the perimeter of the irrigation port (110) in a shape that seems to encompass a part of the perimeter of the irrigation port (110).

[0040] FIG. 7 is a drawing showing an example of a Paco handpiece to which a sleeve according to the present invention can be applied.

[0041] The Paco machine finally ejects the Balanced Salt Solution (BSS), which is introduced (supplied) through the irrigation line of the Paco handpiece, into the eye through irrigation ports formed in a sleeve made of a soft material such as silicone.

[0042] The flexible sleeve is disposable and replaceable, and usually has two irrigation ports formed at the tip of the flexible sleeve facing each other.

[0043] Accordingly, sleeves (100, 100A, 100B, 100C) according to various embodiments and variations of the present invention can be used instead of flexible sleeves of the conventional configuration.

[0044] FIG. 8 is a diagram showing the usage state when the sleeve (100B) of the third embodiment described above is applied to a Paco handpiece, (A) shows a state where the branch pipe (120B) is close to the end of the microtube (S), and (B) shows a state where the end of the microtube (S) is connected to the tip of the branch pipe (120B).

[0045] If the glaucoma tube surgery is successful, in the state of Fig. 8 (B), the equilibrium salt solution is smoothly drained from inside the eyeball to the subconjunctival space outside the eyeball through the microtube (S), and during this process, the blood flow around the microtube (S) changes, and when pressing the conjunctival area with a finger, one can feel it hardening due to increased pressure. Therefore, based on the degree or pattern of these pressure changes and blood flow changes, the doctor can intuitively and quickly / accurately determine / confirm whether aqueous humor communication of the microtube (S) is established.

[0046] It is no different even if any of the sleeves (100, 100A, 100C) of the first, second, and fourth embodiments described above are used.

[0047] Although some embodiments of the present disclosure have been specifically described above, they are merely examples. Those skilled in the art will be able to make various modifications and variations without departing from the essence of the technical concept set forth in the claims.

[0048] Therefore, the scope of protection and technical configuration of the present invention should not be limited to the aforementioned embodiments but should be interpreted as including at least the following items.

[0049] [1] An ophthalmic phacoemulsification sleeve into which a Phaco Tip is inserted, wherein a branch is formed in one of the irrigation ports of the sleeve that allow for the injection of Balanced Salt Solution (BSS) into the eye, the tip of the branch protrudes more than the tip of the Phaco Tip relative to the tip of the sleeve, and the end of the microtube implanted in the eye is fitted into the tip of the branch so that the establishment of aqueous humor communication of the microtube can be determined / confirmed based on the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when Balanced Salt Solution flows out of the eye through the microtube.

[0050] [2] An ophthalmic phacoemulsification sleeve into which a Pacotip is inserted, wherein a branch is formed in one of the irrigation ports of the sleeve that allows for the injection of balance salt solution into the eye, and a hollow needle that is harder than the branch is connected to the branch, and when the hollow needle is connected to the branch, the tip of the hollow needle protrudes more than the tip of the Pacotip relative to the tip of the sleeve, and the end of the microtube implanted in the eye is fitted into the tip of the hollow needle so that the establishment of aqueous humor communication of the microtube can be determined / confirmed from the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when balance salt solution flows out of the eye through the microtube.

[0051] [3] An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, wherein the hollow needle has a rear end inserted into a branch tube and a front end protruding from the front end of the branch tube, and an inner diameter expansion portion formed in a certain range along the length of the hollow needle from the end surface of the front end.

[0052] [4] An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, in which a guide is formed on the inner surface of the sleeve to allow the equilibrium salt solution to flow into the branch tube, in accordance with [1] to [3] described above.

[0053] [5] An ophthalmic phacoemulsification sleeve into which a Pacotip is inserted, wherein a branch tube that is harder than the sleeve is connected to one of the irrigation ports that allow for the injection of balance salt solution into the eye, and when the branch tube is connected to one of the irrigation ports, the tip of the branch tube protrudes more than the tip of the Pacotip relative to the tip of the sleeve, and the end of the microtube implanted in the eye is fitted into the tip of the branch tube so that the establishment of aqueous humor communication of the microtube can be determined / confirmed based on the pattern of pressure change in the conjunctival area and / or surrounding blood flow change that occurs when balance salt solution flows out of the eye through the microtube.

[0054] [6] In the aforementioned [5], the tip of the branch is a metal hollow needle, and the ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery.

[0055] [7] An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, in which an inner diameter expansion portion is formed in a certain range along the length of the branch from the cross-section of the branch end of the branch as described in [5] or [6] above.

[0056] [8] An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, in which a connecting rim having a groove into which the circumference of the duct port is fitted is formed at the base end opposite to the tip of the branch tube.

Claims

Claim 1 An ophthalmic ultrasonic phacoemulsification sleeve of a soft material into which a Paco tip is inserted, wherein the sleeve has a branch formed in one of the irrigation ports that allow injection of equilibrium saline solution into the eyeball, the tip of the branch protrudes more with respect to the tip of the sleeve than the tip of the Paco tip, and the end of a microtube implanted in the eyeball is fitted into the tip of the branch so that the establishment of aqueous humor communication of the microtube can be confirmed from the pattern of pressure change in the conjunctival area and surrounding blood flow change that occurs when the equilibrium saline solution flows out of the eyeball through the microtube. Claim 2 An ophthalmic ultrasonic emulsification sleeve of a soft material into which a Paco tip is inserted, wherein the sleeve has a branch formed in one of the irrigation ports that allow injection of a balance salt solution into the eyeball, a hollow needle harder than the branch is coupled to the branch, and while the hollow needle is coupled to the branch, the tip of the hollow needle protrudes further relative to the tip of the sleeve than the tip of the Paco tip, and the end of a microtube implanted in the eyeball is fitted into the tip of the hollow needle, thereby allowing confirmation of whether aqueous humor communication of the microtube is established from the pattern of pressure change in the conjunctival area and surrounding blood flow change that occurs when the balance salt solution flows out of the eyeball through the microtube. Claim 3 An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, wherein the hollow needle has a rear end inserted into the branch tube and a front end protruding from the front end of the branch tube, and an inner diameter expansion portion formed in a certain range along the longitudinal direction of the hollow needle from the end surface of the front end. Claim 4 An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, wherein, in any one of claims 1 to 3, a guide portion is formed on the inner surface of the sleeve to allow the equilibrium salt solution to flow into the branch tube. Claim 5 An ophthalmic phacoemulsification sleeve of a flexible material into which a Pacotip is inserted, wherein the sleeve has a branch tube that is rigider than the sleeve connected to one of the irrigation ports that allow for the injection of a balance salt solution into the eyeball, and while the branch tube is connected to one of the irrigation ports, the tip of the branch tube protrudes further relative to the tip of the sleeve than the tip of the Pacotip, and the end of a microtube implanted in the eyeball is fitted into the tip of the branch tube, thereby allowing confirmation of whether aqueous humor communication of the microtube is established from the pattern of pressure change in the conjunctival area and surrounding blood flow change that occurs when the balance salt solution flows out of the eyeball through the microtube. Claim 6 In claim 5, the tip of the branch is composed of a metal hollow needle, for ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery. Claim 7 An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery, wherein, in claim 5 or claim 6, an inner diameter expansion portion is formed in a certain range along the longitudinal direction of the branch from the cross-section of the tip of the branch. Claim 8 An ophthalmic ultrasonic emulsification sleeve for confirming intraocular and extraocular penetration and perfusion in glaucoma tube surgery according to claim 7, wherein a coupling rim having a groove into which the circumference of one of the perfusion ports is fitted is formed at the base end, which is the end opposite to the tip of the branch tube.

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