WO2018135825A1

WO2018135825A1 - Phacoemulsification irrigation sleeve

Info

Publication number: WO2018135825A1
Application number: PCT/KR2018/000715
Authority: WO
Inventors: 김명준; 문찬희; 최재순; 권지훈
Original assignee: 울산대학교 산학협력단; 재단법인 아산사회복지재단
Priority date: 2017-01-23
Filing date: 2018-01-16
Publication date: 2018-07-26
Also published as: KR20180086797A; KR101945992B1

Abstract

An embodiment of the present invention provides a phacoemulsification irrigation sleeve comprising: a main body part surrounding a part of a shaft of a phacoemulsification needle and including a distal end portion and a leading end portion; an enlarged section extending from the leading end portion and surrounding a hub of the phacoemulsification needle; and a discharge part disposed on the outer surface of the distal end portion of the main body part and discharging irrigation fluid in all directions of 360 degrees about the central axis passing through the main body part and the enlarged section.

Description

Perfusion Sleeve for Ultrasonic Emulsification Inhalation

The present invention relates to a perfusion sleeve for ultrasonic emulsification inhalation.

Ultrasonic emulsification inhalation is a method of emulsifying the turbid lens using ultrasonic energy during cataract surgery and removing it from the inside of the eye by suction. All recent cataract surgeries are performed with ultrasonography, with the exception of some cases.

During surgery, small incisions of 2.2 mm to 2.75 mm are usually made and the paco tip of the ultrasonic emulsifier handpiece is inserted into the eye. The Paco tip consists of a central shaft and a sleeve surrounding the shaft. There is a space between the shaft and the sleeve, and there is an outlet at the end of the sleeve to allow perfusion of the balanced salt solution injected from the outside to maintain the eyeball forward during surgery. The shaft vibrates rapidly to generate ultrasonic energy and at the same time serves as a suction port for sucking the emulsified lens. Paco tip sleeves currently commonly used have two circular outlets horizontally opposed at their ends, through which the balanced salt solution is perfused. In the case of such a sleeve, the perfusion fluid flowing into the eye has a certain direction, and in some cases, it acts as a force to prevent the fragment of the lens from entering the suction port of the shaft, and when injected directly into the eye endothelial cells, damage to endothelial cells is prevented. It causes aggravating side effects. In addition, a large amount of the solution passes through the outlet of a relatively small area, the perfusate flows at a high flow rate and then forms a vortex after hitting various structures inside the eye. This vortex also acts as a major force to prevent the lens fragments from entering the intake of the shaft, which impedes the efficient removal of the lens.

The present invention provides a perfusion sleeve for ultrasonic emulsification inhalation for directionality and flow velocity and vortex reduction of perfusion fluid flow.

One embodiment of the present invention surrounds a portion of the shaft of the ultrasonic emulsion suction needle, the main portion having a distal end and a tip, an enlarged section extending from the tip surrounding the hub of the ultrasonic emulsion suction needle and the body portion It is formed on the outer surface of the distal end, and provides a perfusion sleeve for ultrasonic emulsification inhalation including a discharge portion for discharging the perfusion liquid 360-degree forward with respect to the main axis and the central axis passing through the enlarged section.

The perfusion sleeve for ultrasonic emulsification inhalation according to the present invention can discharge the perfusion liquid 360 degrees through the discharge portion formed in the distal end portion, thereby minimizing the specific direction of the perfusion liquid. Through this, the perfusion sleeve for ultrasonic emulsification inhalation according to the present invention can reduce the vortex of the perfusion fluid flow during surgery, it is possible to minimize the damage of endothelial cells. In addition, the perfusion sleeve for ultrasonic emulsification inhalation according to the present invention can be supplied by reducing the flow rate while supplying a certain amount of perfusion fluid required for the lens during surgery by increasing the area discharged perfusion.

1 is a perspective view schematically showing a perfusion sleeve for ultrasonic emulsification in accordance with an embodiment of the present invention.

2 is a perspective view schematically showing a perfusion sleeve for ultrasonic emulsification inhalation of another embodiment.

3 is a cross-sectional view illustrating a state in which a paco tip for ultrasonic emulsification is inserted into the sleeve of FIG. 1.

Figure 4 is a perspective view schematically showing a perfusion sleeve for ultrasonic emulsification in accordance with another embodiment of the present invention.

5 and 6 are cross-sectional and perspective views showing other embodiments of the sleeve of FIG. 4.

In one embodiment of the present invention, the discharge portion may include a spiral hole formed along the circumferential direction of the distal end portion.

In one embodiment of the present invention, the discharge portion may further include a plurality of support means for connecting the spiral holes at a predetermined interval.

In one embodiment of the present invention, the plurality of support means may be arranged to be staggered with respect to the central axis direction.

In one embodiment of the present invention, the pitch of the spiral hole may be increased toward the front end portion.

In one embodiment of the present invention, the spiral hole may be formed so that a portion overlaps with respect to the longitudinal direction of the distal end portion.

In one embodiment of the present invention, the discharge portion may include a plurality of discharge holes formed in the outer surface of the distal end portion to be spaced along the longitudinal direction of the distal end portion.

In one embodiment of the invention, the outer surface of the distal end may be formed with at least two outlet holes arranged in each of at least two straight lines crossing each other in the central axis and passing through the outer surface of the distal end.

In one embodiment of the present invention, the discharge holes may be larger in size toward the tip portion.

In one embodiment of the present invention, the discharge portion may include a plurality of discharge holes arranged in a mesh shape on the outer surface of the distal end portion.

In one embodiment of the present invention, the discharge portion includes a plurality of hole groups disposed on the outer surface of the distal end portion and a plurality of discharge holes are arranged on the same circumference, the discharge holes included in each of the plurality of hole groups It may be arranged to be staggered with respect to the longitudinal direction of the distal end.

Other aspects, features, and advantages other than those described above will become apparent from the following drawings, claims, and detailed description of the invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. Effects and features of the present invention, and methods of achieving them will be apparent with reference to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same or corresponding components will be denoted by the same reference numerals, and redundant description thereof will be omitted. .

In the following embodiments, the terms first, second, etc. are used for the purpose of distinguishing one component from other components rather than a restrictive meaning.

In the following examples, the singular forms "a", "an" and "the" include plural forms unless the context clearly indicates otherwise.

In the following examples, the terms including or having have meant that there is a feature or component described in the specification and does not preclude the possibility of adding one or more other features or components.

In the following embodiments, when a part such as a film, a region, a component, or the like is on or on another part, not only is it directly above the other part, but also another film, a region, a component, etc. is interposed therebetween. It also includes cases where there is.

In the drawings, components may be exaggerated or reduced in size for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to the illustrated.

In the case where an embodiment may be implemented differently, a specific process order may be performed differently from the described order. For example, two processes described in succession may be performed substantially simultaneously or in the reverse order of the described order.

In the following embodiments, when a film, a region, a component, or the like is connected, not only the film, the region, and the components are directly connected, but also other films, regions, and components are interposed between the film, the region, and the components. And indirectly connected. For example, in the present specification, when the film, the region, the component, and the like are electrically connected, not only the film, the region, the component, and the like are directly electrically connected, but other films, the region, the component, and the like are interposed therebetween. This includes indirect electrical connections.

Hereinafter, with reference to the drawings will be described with respect to the perfusion sleeve 100 for ultrasonic emulsification inhalation in one embodiment of the present invention.

1 is a perspective view schematically showing a perfusion sleeve 100 for ultrasonic emulsification in accordance with an embodiment of the present invention, Figure 2 is a perspective view schematically showing a perfusion sleeve 100 for ultrasonic emulsification in accordance with another embodiment to be. 3 is a cross-sectional view illustrating a state in which a paco tip for ultrasonic emulsification is inserted into the sleeve 100 of FIG. 1.

1 to 3, the perfusion sleeve 100 for ultrasonic emulsification in accordance with an embodiment of the present invention may include a main body 110, an enlarged section 120, and an outlet 115.

Here, the ultrasonic emulsion suction needle connected to the ultrasonically driven handpiece (not shown) may include a phaco tip (10) and the sleeve (100). The ultrasonic emulsification suction paco tip 10 may be composed of a needle hub 13 and a needle shaft 14 which are connected to the needle hub 13 and the needle hub 13 which can be combined with the ultrasonic emulsification suction surgery handpiece and are provided with a penetrating guide hole S1. have. The ultrasonic emulsification suction packo tip 10 may be removed by inhaling the lens decomposed into ultrasonic energy through the guide hole (S1).

On the other hand, the body portion 110 of the sleeve 100 may surround a portion of the shaft 14 of the ultrasonic emulsion suction needle, and may have a distal end 111 and a front end 113. One end of the distal end 111 may be formed with a through hole 117 to expose a portion of the needle shaft 14 for ultrasonic emulsification suction surgery inserted into the distal end 113. At this time, the flow tube (S2) is formed between the paco tip 10 and the sleeve 100, through the flow tube (S2) can be supplied to the eye with the perfusion liquid provided from the handpiece (not shown).

The enlarged section 120 may extend from the tip portion 113 to surround the hub 13 of the needle for ultrasonic emulsification. The augmentation section 120 may be seated in an ultrasonic emulsification inhalation handpiece (not shown) for use in surgery. The enlarged section 120 is larger than the diameter of the main body 110 in order to be connected to the handpiece (not shown), and the main body through the inclined portion 130 between the enlarged section 120 and the main body 110. It may be connected to the front end portion 113 of the (110).

Discharge part 115 is formed on the outer surface of the distal end 111 of the main body 110, perfusion liquid 360 degrees in the forward direction based on the central axis (A1) passing through the main body 110 and the enlarged section 120 Can be discharged. In other words, the perfusion liquid provided to the flow tube S2 formed between the aforementioned paco tip 10 and the sleeve 100 may be discharged to the eye that is outside of the sleeve 100 during the operation through the discharge unit 115.

Conventional sleeves generally discharge the perfusion liquid outward through two holes formed opposite the distal end of the body portion. When the perfusion liquid is discharged through the two holes, the perfusion liquid may be discharged in a predetermined direction by the direction of the force to be discharged forward through the flow pipe S2 and the position where the hole is formed. Perfusate with constant directivity is reflected by the lens inner wall to form a vortex. This vortex affects the emulsified cataract tissue and prevents the cataract tissue from being directly sucked by the needle shaft 14. In addition, the required amount of perfusion fluid must be supplied through the hole during surgery, and when discharged through the two holes, the pressure discharged to the outside increases, which may damage endothelial cells.

Hereinafter, the discharge unit 115 capable of discharging the perfusion liquid 360 degrees in order to solve the above-described problem will be described in detail.

1 and 2, the discharge part 115 may include a spiral hole S formed along the circumferential direction of the distal end 111. The spiral hole S may be formed in the distal end 111 having a constant pitch. In addition, as shown in the drawing, the spiral hole S may extend to a part of the tip portion 113. However, in the drawings, the spiral hole S is slightly exaggerated to explain, and the spiral hole S may be formed to correspond to an area inserted into the lens. Since the spiral hole S is formed along the circumferential direction of the distal end 111, the perfusion liquid may be discharged in a 360 degree forward direction based on the central axis A1. In addition, since the spiral holes are overlapped with respect to the longitudinal direction of the distal end 111, the area through which the perfusion liquid is discharged increases, and when the perfusion liquid with the same flow rate is discharged, the pressure or speed of the perfusion liquid can be reduced. In another embodiment, the pitch of the spiral hole S may be increased toward the tip portion 113. Although not shown, by increasing the pitch of the spiral hole S toward the tip portion 113, the pressure or speed of the perfusion liquid discharged toward the tip portion 113 direction can be changed. These changes can effectively reduce the vortex.

As another embodiment, referring to FIG. 2, the discharge part 115 may further include a plurality of support means 119 connecting the spiral holes S at predetermined intervals. The plurality of support means 119 may be arranged at regular intervals, or may be arranged at irregular intervals. At this time, the plurality of supporting means 119 are arranged to be staggered with respect to the direction of the central axis (A1), so that the spiral hole (S) can be stably supported and at the same time the perfusion liquid can be discharged in all directions 360 degrees Can be.

4 is a perspective view schematically showing a perfusion sleeve 200 for ultrasonic emulsification according to another embodiment of the present invention, and FIGS. 5 and 6 are cross-sectional views and perspective views showing other embodiments of the sleeve of FIG. 4.

Referring to FIG. 4, the perfusion sleeve 200 for ultrasonic emulsification according to another embodiment may include a main body 210, an enlarged section 220, and an outlet 215. Sleeve 200 according to another embodiment of the present invention except for the shape of the discharge portion 215, since the remaining components are the same as the embodiment will not be duplicated description.

Discharge part 215 according to another embodiment may include a plurality of discharge holes (H) formed on the outer surface of the distal end 211 to be spaced along the longitudinal direction of the distal end 211. As shown in the figure, the plurality of discharge holes (H) may be arranged in a net shape along the longitudinal direction and the circumferential direction of the distal end portion 211. Specifically, the outer surface of the distal end 211 is formed with at least two discharge holes (H) arranged in each of at least two straight lines (L1, L2) that cross each other at the central axis (A1) and pass through the outer surface of the distal end (211) Can be. The plurality of discharge holes H include a plurality of hole groups M1, M2, and M3 disposed on the same circumference, and the hole groups M1, M2, and M3 are along a length direction of the distal end portion 211. Can be arranged. The discharge part 215 may have a plurality of discharge holes H disposed on the outer surface of the distal end 211 in a mesh shape, and discharge the perfusion liquid 360 degrees in the forward direction based on the central axis A1.

Referring to FIG. 5, the discharge holes H included in the discharge part 215 may increase in size toward the tip part 213. In other words, the first hole group M1, the second hole group M2, and the third hole group M3, in which the plurality of discharge holes H are disposed on the same circumference, may be sequentially disposed at the distal end portion 211. When disposed in the 213 direction, the size of the discharge hole H belonging to the third hole group M3 may be larger than the discharge hole H belonging to the first hole group M1. Through this, the discharge portion 215 may change the pressure or speed of the perfusion liquid discharged toward the tip portion 213 toward, and can effectively reduce the vortex.

Referring to FIG. 6, the discharge part 215 of another embodiment may include a plurality of hole groups M1, M2, and M3 in which a plurality of discharge holes H are disposed on the same circumference, and the plurality of holes. The discharge holes H belonging to each of the groups M1, M2, and M3 may be arranged to be staggered with respect to the longitudinal direction of the distal end portion 211. The discharge part 215 of another embodiment can reduce the directionality of the perfusion liquid discharged through the discharge holes H arranged to be staggered from each other, and can also effectively reduce the generation of vortices.

In the drawings, only three hole groups of the plurality of hole groups described above are illustrated, and the present invention is not limited thereto. The discharge part 215 according to another embodiment of the present invention may include three or more hole groups in the distal end 211. In this case, as the hole group disposed in the distal end portion 211 increases, the size of the discharge hole H belonging to the hole group may decrease. However, since the number of the discharge holes (H) increases, the area through which the perfusate is discharged may increase. Through this, the flow rate of the perfusion liquid discharged to the discharge unit 215 can be reduced.

As described above, the perfusion sleeve for ultrasonic emulsification in accordance with the present invention by discharging the perfusion liquid 360 degrees through the discharge portion formed in the distal end portion, it is possible to minimize the specific orientation of the perfusion liquid. Through this, the perfusion sleeve for ultrasonic emulsification inhalation according to the present invention can reduce the vortex of the perfusion fluid flow during surgery, it is possible to minimize the damage of endothelial cells. In addition, the perfusion sleeve for ultrasonic emulsification inhalation according to the present invention can be supplied by reducing the flow rate while supplying a certain amount of perfusion fluid required for the lens during surgery by increasing the area discharged perfusion.

As described above, the present invention has been described with reference to one embodiment shown in the drawings, which is merely exemplary, and it will be understood by those skilled in the art that various modifications and embodiments may be made therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

According to this invention, a perfusion sleeve is provided. In addition, embodiments of the present invention can be applied to ultrasonic emulsification suction, etc. used in the industry.

Claims

A body portion surrounding a portion of the shaft of the ultrasonic emulsion suction needle and having a distal end and a distal end;

An enlarged section extending from the tip and surrounding the hub of the needle for ultrasonic emulsification; And

It is formed on the outer surface of the distal end of the main body portion, the discharge portion for discharging the perfusion liquid in a 360-degree forward direction based on the central axis passing through the main body portion and the enlarged section; including, the perfusion sleeve for ultrasonic emulsification inhalation.
According to claim 1,

The discharge portion comprises a spiral hole formed along the circumferential direction of the distal end, perfusion sleeve for ultrasonic emulsification.
The method of claim 2,

The discharge portion further comprises a plurality of support means for connecting the spiral holes at a predetermined interval, ultrasonic perfusion surgery perfusion sleeve.
The method of claim 3, wherein

And the plurality of supporting means are arranged to be staggered with respect to the central axis direction.
The method of claim 2,

A perfusion sleeve for ultrasonic emulsification inhalation, wherein the pitch of the spiral hole becomes larger toward the distal end.
The method of claim 2,

The spiral hole is formed so that a portion overlaps with respect to the longitudinal direction of the distal end, the perfusion sleeve for ultrasonic emulsification.
According to claim 1,

The discharge portion includes a plurality of discharge holes formed in the outer surface of the distal end portion to be spaced along the longitudinal direction of the distal end, ultrasonic perfusion surgery perfusion sleeve.
According to claim 1,

A perfusion sleeve for ultrasonic emulsification inhalation having an outer surface of the distal end formed with at least two outlet holes arranged in each of at least two straight lines crossing each other in the central axis and passing through the outer surface of the distal end.
The method of claim 8,

The outlet holes are ultrasonic perfusion sleeve, the size of the discharge hole is larger toward the tip portion.
The perfusion sleeve for ultrasonic emulsification inhalation according to claim 1, wherein the discharge portion includes a plurality of discharge holes arranged in a mesh shape on an outer surface of the distal end portion.
According to claim 1,

The discharge portion includes a plurality of hole groups disposed on an outer surface of the distal end portion, and having a plurality of discharge holes disposed on the same circumference.

Discharge holes included in each of the plurality of hole groups are arranged to be staggered with respect to the longitudinal direction of the distal end, the perfusion sleeve for ultrasonic emulsification.