Capsule puncture device

Abstract

The invention discloses a capsular membrane puncture device, and relates to the technical field of cataract treatment, the capsular membrane puncture device comprises a front arm and a rear arm, the front arm and the rear arm form a preset included angle, the front arm and the rear arm are connected and are both of a hollow tubular structure, and the interiors of the front arm and the rear arm are communicated; the head is located at the front end of the front arm and provided with a downward opening, a sharp corner is arranged at the front end of the head, and grooves are formed in the two sides of the sharp corner; and the joint is connected with the rear end of the rear arm through a hose and is used for being connected with an injector. According to the capsular membrane puncture device, the pressure in the capsular membrane can be reduced, and the risk that the capsular membrane is broken is reduced.

Description

Technical Field

[0001] The present specification relates to the technical field of cataract treatment, and in particular to a capsule puncture device. Background Art

[0002] Cataract surgery is a routine ophthalmic surgery, and the surgical techniques are relatively mature. However, for patients with over-mature cataracts, please refer to Figure 3 As shown, the structure of the lens 14 includes: an external sealed capsule 15, a liquefied cortex 16, and a hard core 17. The lens 14 is in an expanded state, and the internal pressure is high. During the operation, the capsule 15 is easy to rupture, resulting in the inability to smoothly perform the operation. Summary of the invention

[0003] In view of the deficiencies in the prior art, one purpose of this specification is to provide a capsule puncture device that can reduce the pressure inside the capsule and reduce the risk of capsule rupture.

[0004] To achieve the above-mentioned purpose, the embodiments of this specification provide a capsule puncture device, including: A forearm and a rear arm having a predetermined angle, the forearm and the rear arm are connected and both are hollow tubular structures, and the interiors of the forearm and the rear arm are connected; A head portion located at the front end of the forearm, the head portion having a downward opening, a sharp corner being provided at the front end of the head portion, and grooves being provided at both sides of the sharp corner; A connector is connected to the rear end of the rear arm through a hose, and the connector is used to connect a syringe.

[0005] As a preferred embodiment, the rear arm cover is provided with a hand-holding portion.

[0006] As a preferred embodiment, the rear end of the rear arm is connected to a hand-held part, the hand-held part is a hollow tubular structure, the rear arm and the interior of the hand-held part are connected, and the hose is connected to the rear end of the hand-held part.

[0007] As a preferred embodiment, the length of the forearm is 4 mm to 10 mm, the length of the rear arm is 10 mm to 40 mm, the length of the hand-held portion is 60 mm to 150 mm, and the length of the hose is 150 mm to 400 mm.

[0008] As a preferred embodiment, the forearm and the rear arm are both straight.

[0009] As a preferred embodiment, the predetermined angle is 100°~170°; when the capsule puncture device is used, the forearm extends in the horizontal direction.

[0010] As a preferred embodiment, side edges are provided on both sides of the sharp corner.

[0011] As a preferred embodiment, the upper wall surface of the head is curved, and the plane where the opening is located is parallel to the axis of the forearm.

[0012] As a preferred implementation, the depth of the groove is smaller than the radius of the forearm.

[0013] As a preferred embodiment, the length of the head is 1 mm to 5 mm. Beneficial Effects

[0014] The capsule puncture device provided in this embodiment is provided with a head at the front end of the forearm, the head has a downward opening and a sharp corner at the front end of the head, so that the sharp corner can puncture the capsule of the lens and allow the opening to enter the capsule of the lens; the joint can be connected to a syringe, and the syringe suction generates negative pressure to suck out the liquefied cortex in the lens, reduce the pressure inside the capsule, and reduce the risk of capsule rupture. In addition, grooves are provided on both sides of the sharp corner to prevent the edge of the opening from completely fitting with the surface of the hard core, resulting in the inability to suck the liquid around the opening. The provision of grooves can facilitate the removal of liquid around the head. The use of this capsule puncture device can reduce the probability of capsule rupture, reduce the risk of surgery, improve surgical safety and postoperative effects, and thus benefit cataract patients.

[0015] In addition, a hose is connected between the connector and the posterior arm, instead of directly connecting the connector to the rear end of the posterior arm, so that when operating the syringe connected to the connector, the posterior arm connected to the forearm is avoided from touching, thereby ensuring that when the liquefied cortex is aspirated, the position of the opening is stable and will not shake.

[0016] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0017] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0018] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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 in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a schematic structural diagram of a capsule puncture device provided in this embodiment; Figure 2 for Figure 1 A schematic diagram of the structure of the front end of the middle forearm; Figure 3 It is a schematic diagram of the structure of a capsule puncture device provided in this embodiment when applied in a specific scenario.

[0021] Description of reference numerals: 1. Capsular puncture device; 2. Forearm; 3. Back arm; 4. Head; 5. Opening; 6. Sharp corner; 7. Groove; 8. Side blade; 9. Connector; 10. Hose; 11. Hand-held part; 12. Interface; 13. Syringe; 14. Lens; 15. Capsular membrane; 16. Liquefied cortex; 17. Hard nucleus. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] See also Figures 1 to 3 The embodiment of the present application provides a capsule puncture device 1 , comprising: a forearm 2 , a rear arm 3 , a head 4 and a joint 9 .

[0026] The forearm 2 and the rear arm 3 have a predetermined angle. The forearm 2 and the rear arm 3 are connected and are both hollow tubular structures. The interiors of the forearm 2 and the rear arm 3 are connected. The head 4 is located at the front end of the forearm 2. The head 4 has a downward opening 5. The front end of the head 4 is provided with a sharp corner 6, and grooves 7 are provided on both sides of the sharp corner 6. The connector 9 is connected to the rear end of the rear arm 3 through a hose 10. The connector 9 is used to connect a syringe 13.

[0027] The capsule puncture device 1 provided in this embodiment is provided with a head 4 at the front end of the forearm 2, the head 4 having a downward opening 5 and a sharp corner 6 at the front end of the head 4, so that the sharp corner 6 can puncture the capsule 15 of the lens 14, so that the opening 5 enters the capsule 15 of the lens 14; the joint 9 can be connected to the syringe 13, and the syringe 13 generates negative pressure by suction, so as to suck out the liquefied cortex 16 in the lens 14, reduce the pressure inside the capsule 15, and reduce the risk of rupture of the capsule 15. In addition, grooves 7 are provided on both sides of the sharp corner 6 to prevent the edge of the opening 5 from being completely attached to the surface of the hard core 17, resulting in the inability to absorb the liquid around the opening 5. The provision of the grooves 7 can facilitate the removal of the liquid around the head 4. The use of the capsule puncture device 1 can reduce the probability of rupture of the capsule 15, reduce the risk of surgery, improve the safety of surgery and postoperative effects, and thus benefit cataract patients.

[0028] In addition, a hose 10 is connected between the connector 9 and the rear arm 3, instead of directly connecting the connector 9 to the rear end of the rear arm 3, so that when operating the syringe 13 connected to the connector 9, the rear arm 3 connected to the forearm 2 is prevented from being touched, thereby ensuring that when the liquefied cortex 16 is sucked, the position of the opening 5 is stable and does not shake.

[0029] In this embodiment, the capsule puncture device 1 is further provided with a hand-held portion 11 , so that an operator can hold the capsule puncture device 1 .

[0030] In one embodiment, the hand-held portion 11 is sleeved outside the rear arm 3. The hand-held portion 11 is substantially cylindrical.

[0031] In another embodiment, the hand-held portion 11 is connected to the rear end of the rear arm 3. The hand-held portion 11 is a hollow tubular structure, the rear arm 3 and the interior of the hand-held portion 11 are connected, and the hose 10 is connected to the rear end of the hand-held portion 11. In this way, the length of the rear arm 3 can be reduced. The inner diameters of the forearm 2, the rear arm 3 and the hand-held portion 11 are equal, so that the fluid can flow inside them.

[0032] In this embodiment, the forearm 2 and the rear arm 3 are both straight. In other embodiments, the forearm 2 can be curved as long as it does not affect the downward direction of the opening 5. The straight forearm 2 and the rear arm 3 are easy to manufacture.

[0033] The implementation manner of the present application does not impose any unique limitation on the lengths of the forearm 2 , the rear arm 3 , the hand-held portion 11 , the hose 10 , etc. It is only necessary that when the operator holds the hand-held portion 11 , the sharp corner 6 can be used to pierce the capsule 15 of the lens 14 so that the opening 5 enters the capsule 15 of the lens 14 .

[0034] Preferably, the length of the forearm 2 is 4 mm to 10 mm. The length of the rear arm 3 is 10 mm to 40 mm. The length of the handheld portion 11 is 60 mm to 150 mm. The length of the hose 10 is 150 mm to 400 mm.

[0035] In this embodiment, when using the capsule puncture device 1, the operator holds the hand-held portion 11 in a pen-holding posture, so that the forearm 2 extends in the horizontal direction. If the forearm 2 and the rear arm 3 are in a straight line, it is inconvenient to hold the forearm 2 during use, so the forearm 2 and the rear arm 3 need to maintain a predetermined angle. The predetermined angle is 100° to 170°, and the rear arm 3 is located above the forearm 2, that is, the rear arm 3 and the opening 5 are not only located at the rear and front ends of the forearm 2, but also at the upper and lower sides of the forearm 2.

[0036] like Figure 1 As shown, the upper wall of the head 4 is curved so that the plane where the opening 5 is located can be parallel to the axis of the forearm 2, so that when the operator holds the handheld part 11 in a pen-holding posture, the opening 5 is roughly parallel to the horizontal plane, which is convenient for subsequent operations.

[0037] like Figure 2 As shown, side blades 8 are provided on both sides of the sharp corner 6 to assist the sharp corner 6 in piercing the capsule 15 of the lens 14 .

[0038] In this embodiment, the length of the head 4 is 1 mm to 5 mm. The head 4 should not be too large or too small. The appropriate size can ensure that the opening 5 can smoothly enter the capsule 15 of the lens 14 and smoothly suck out the liquefied cortex 16 in the lens 14.

[0039] Specifically, the depth of the groove 7 is smaller than the radius of the forearm 2, the two grooves 7 are symmetrically arranged, and the side edge 8 is located between the sharp corner 6 and the groove 7. This structure can ensure that after the sharp corner 6 pierces the capsule 15, the opening 5 can smoothly enter the capsule 15, and ensure that the liquefied cortex 16 in the lens 14 can be smoothly sucked out.

[0040] like Figure 1 and Figure 3 As shown, an end of the connector 9 facing away from the hose 10 (ie, the rear end) is provided with an interface 12 , and a syringe 13 can be sealedly connected to the interface 12 , so as to suck out the liquefied cortex 16 in the lens 14 .

[0041] In the present embodiment, a position close to the lens 14 is referred to as the front, and a position far from the lens 14 is referred to as the back.

[0042] It should be noted that, in the description of this specification, unless otherwise specified, the meaning of "multiple" is two or more. Any numerical value cited herein includes all values ​​of the lower value and the upper value that are incremented by one unit from the lower limit to the upper limit, and there is an interval of at least two units between any lower value and any higher value. For example, if the value of the quantity or process variable (such as temperature, pressure, time, etc.) of a component is described to be from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, then the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, it is appropriately considered that a unit is 0.0001, 0.001, 0.01, 0.1. These are just examples that want to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the minimum value and the maximum value are clearly stated in the specification in a similar manner.

[0043] Unless otherwise specified, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0044] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0045] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0046] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A capsule puncture device, characterized in that: include: A forearm and a rear arm having a predetermined angle, the forearm and the rear arm being connected and both being hollow tubular structures, the interiors of the forearm and the rear arm being connected; A head portion located at the front end of the forearm, the head portion having a downward opening, a sharp corner at the front end of the head portion, and grooves on both sides of the sharp corner; A connector is connected to the rear end of the rear arm via a hose, and the connector is used to connect a syringe.

2. The capsule puncture device according to claim 1, characterized in that: The rear arm coat is provided with a hand-holding portion.

3. The capsule puncture device according to claim 1, characterized in that: The rear end of the rear arm is connected with a hand-held part, which is a hollow tubular structure. The interior of the rear arm and the hand-held part are connected, and the hose is connected to the rear end of the hand-held part.

4. The capsule puncture device according to claim 3, characterized in that: The length of the forearm is 4mm~10mm, the length of the rear arm is 10mm~40mm, the length of the handheld part is 60mm~150mm, and the length of the hose is 150mm~400mm.

5. The capsule puncture device according to claim 1, characterized in that: The forearm and the rear arm are both straight-line.

6. The capsule puncture device according to claim 5, characterized in that: The predetermined angle is 100° to 170°; when the capsule puncture device is used, the forearm extends in the horizontal direction.

7. The capsule puncture device according to claim 1, characterized in that: Side edges are provided on both sides of the pointed corner.

8. The capsule puncture device according to claim 1, characterized in that: The upper wall surface of the head is curved, and the plane where the opening is located is parallel to the axis of the forearm.

9. The capsule puncture device according to claim 1, characterized in that: The depth of the groove is less than the radius of the forearm.

10. The capsule puncture device according to claim 1, characterized in that: The length of the head is 1 mm to 5 mm.

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