Intraocular membrane separation device
By designing a device for separating the inner membrane of the eye, the elastic strips are used to telescopic and move inside and outside the channel to gradually separate the proliferation membrane from the retina, solving the problem of breakage or residue during removal of the proliferation membrane in the prior art, and improving the surgical efficiency and Security.
Patent Information
- Application Number
- CN202411861008.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-02-14
AI Technical Summary
When removing the fundus proliferation membrane, the prior art can easily lead to rupture or residue of the proliferation membrane, which increases the surgical time and bleeding risk, and it is difficult to effectively separate the proliferation membrane from the retina.
A separating device for the eye ophthalmic membrane is designed, including a housing and an inner core assembly. The inner core assembly is composed of a push-pull member, a bolt and an elastic strip. The elastic strip extends and moves inside and outside the channel, gradually deforms, shrinks or expands, and is used to gradually Separate the proliferation membrane from the retina.
This device can effectively separate the proliferation membrane from the retina, reduce the surgical time and bleeding risk, ensure the integrity of the proliferation membrane, and facilitate subsequent removal.
Smart Images
Figure CN119424085A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ophthalmic surgery, and in particular to an intraocular membrane separation device. Background Art
[0002] Endocular membranes exist in a variety of fundus diseases, such as traumatic retinopathy, diabetic retinopathy, and retinal detachment. Intraocular forceps are often used to remove fundus proliferative membranes in clinical practice. For tightly adhered and large proliferative membranes, the force of intraocular forceps is limited, and they are easily broken during peeling, and the membrane cannot remain intact, which easily causes the residue of fundus proliferative membranes. Multiple grabbing increases the operation time and the probability of intraocular bleeding. Therefore, an intraocular membrane separation device is needed to separate the proliferative membrane from the retina for subsequent removal of the proliferative membrane. Summary of the invention
[0003] The present invention aims to solve at least one of the technical problems in the above-mentioned technology to a certain extent. To this end, the purpose of the present invention is to provide an intraocular membrane separation device, which has a simple structure and can gradually separate the proliferative membrane from the retina, so as to facilitate the subsequent removal of the proliferative membrane.
[0004] To achieve the above-mentioned object, the present invention provides an intraocular membrane separation device, which comprises: a shell and an inner core component;
[0005] The housing has a channel and a first mounting groove with an open top, and the channel is communicated with the first mounting groove;
[0006] The inner core component comprises a push-pull member, an injection rod and at least two elastic strips, each of the elastic strips is connected to form an elastic body that gradually shrinks from the middle to both ends, the push-pull member can be slidably installed in the first installation groove, the injection rod is inserted into the channel, one end of the injection rod is connected to the push-pull member, and the other end of the injection rod is connected to the elastic body, the push-pull member can drive the elastic body to move telescopically in and outside the channel, when the elastic body enters the channel from outside the channel, each of the elastic strips is restricted by the channel and gradually deforms toward the axis of the injection rod and moves closer, when the elastic body extends from the channel to the outside of the channel, each of the elastic strips gradually deforms away from the axis of the injection rod and expands.
[0007] According to an embodiment of the present invention, an intraocular membrane separation device is provided, in which an elastic body with a small head and tail and a large middle formed by the elastic strip of the inner core component is telescopically movable in and out of the channel of the shell, so that the elastic body can gradually deform and shrink when entering the channel, and can gradually deform and expand when extending out of the channel, thereby facilitating the gradual separation of the proliferative membrane from the retina, and then facilitating the subsequent removal of the proliferative membrane.
[0008] In addition, the intraocular membrane separation device proposed in the above embodiment of the present invention may also have the following additional technical features:
[0009] Optionally, the elastic strips are distributed at equal intervals around the axis of the injection rod.
[0010] Furthermore, the elastic strip is nickel-titanium wire.
[0011] Optionally, a transition head is provided at the front end of the elastomer, and the transition head is conical.
[0012] Optionally, the cross section of the channel is circular, the outer diameter of the channel is 0.4 mm to 0.6 mm, and the inner diameter of the channel is 0.3 mm to 0.5 mm.
[0013] Optionally, the inner core component also includes a rolling member, the push-pull member defines a second mounting groove with openings at both ends, the rolling member can be elastically pressed and installed in the second mounting groove, and the outer ring of the rolling member is exposed at the two openings of the second mounting groove, the rolling member is provided with a first tooth portion, and the bottom of the first mounting groove is provided with a second tooth portion, when the rolling member is pressed, the first tooth portion engages with the second tooth portion, and the rolling member can drive the push-pull member to slide when rolling, and when the rolling member is released from being pressed, the first tooth portion disengages from the second tooth portion.
[0014] Furthermore, the rolling element further includes pressing portions arranged on both sides of the first tooth portion, and the pressing portions protrude from the first tooth portion. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of an intraocular membrane separation device according to an embodiment of the present invention;
[0016] Figure 2 is a schematic structural diagram of an intraocular membrane separation device from another perspective according to an embodiment of the present invention;
[0017] Figure 3 for Figure 2 Section view along AA;
[0018] Figure 4 A schematic diagram of the structure of a push-pull member and a rolling member according to an embodiment of the present invention;
[0019] Figure 5 is a schematic structural diagram of a push-pull member and a rolling member from another perspective according to an embodiment of the present invention;
[0020] Figure 6 for Figure 5 Sectional view along BB;
[0021] Description of reference numerals:
[0022] Shell 1, channel 11, first mounting groove 12, second tooth portion 13, groove 14, inner core assembly 2, push-pull member 21, second mounting groove 211, convex strip 212, injection rod 22, elastomer 23, elastic strip 231, transition head 232, rolling member 24, first tooth portion 241, pressing portion 242, rotating shaft 243, spring 25. DETAILED DESCRIPTION
[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0024] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0026] Reference below Figure 1-Figure 6 , the implementation of the intraocular membrane separation device proposed in an embodiment of the present invention is described in detail.
[0027] The intraocular membrane separation device according to an embodiment of the present invention comprises: a shell 1 and an inner core component 2 .
[0028] Specifically, the shell 1 has a channel 11 and a first mounting groove 12 with an open top, and the channel 11 is connected to the first mounting groove 12; the inner core component 2 has a push-pull member 21, an injection rod 22 and at least two elastic strips 231, and each elastic strip 231 is connected to form an elastic body 23 that gradually shrinks from the middle to both ends, the push-pull member 21 can be slidably installed in the first mounting groove 12, the injection rod 22 is inserted into the channel 11, one end of the injection rod 22 is connected to the push-pull member 21, and the other end of the injection rod 22 is connected to the elastic body 23, and the push-pull member 21 can drive the elastic body 23 to move telescopically in and outside the channel 11. When the elastic body 23 enters the channel 11 from outside the channel 11, each elastic strip 231 is restricted by the channel 11 and gradually deforms toward the axis of the injection rod 22 and moves closer. When the elastic body 23 extends out of the channel 11 from inside the channel 11, each elastic strip 231 gradually deforms away from the axis of the injection rod 22 and expands.
[0029] That is to say, the first mounting groove 12 is suitable for installing the push-pull member 21, and the channel 11 is suitable for limiting the movement of the push rod 22 in the channel 11. The first mounting groove 12 is communicated with the channel 11 to facilitate the connection between the push rod 22 and the push-pull member 21. When the push-pull member 21 slides, it can drive the elastic body 23 connected to the push rod 22 to move and switch in the channel 11 and outside the channel 11. The elastic body 23 is gradually reduced from the middle to the two ends, so that one end of the elastic body 23 enters the channel 11 and uses the limiting effect of the inner wall of the channel 11 to gradually make the elastic strip 231 elastically deform and shrink, and finally the elastic body 23 is gathered in the channel 11. When the elastic body 23 extends out of the channel 11, the other end of the elastic body 23 extends between the proliferative membrane and the retina. Since the elastic strip 231 of the elastic body 23 gradually breaks away from the contact with the inner wall of the channel 11, the elastic strip 231 recovers and expands, thereby gradually stretching and separating the proliferative membrane and the retina. The elastic strip 231 can be cylindrical or thin-sheet-shaped, and can be made of memory metal. Raised strips 212 can be provided on both sides of the push-pull member 21 , and grooves 14 matching the raised strips 212 are provided on the two inner walls of the first mounting groove 12 .
[0030] Thus, the elastic body 23 with a small head and tail and a large middle formed by the elastic strip 231 of the inner core component 2 can be telescoped inside and outside the channel 11 of the shell 1, so that the elastic body 23 can gradually deform and shrink when entering the channel 11, and can gradually deform and expand when extending out of the channel 11, thereby facilitating the gradual separation of the proliferative membrane from the retina, and then facilitating the subsequent removal of the proliferative membrane.
[0031] Optionally, each elastic strip 231 is distributed around the axis of the injection rod 22 at equal intervals. It can be understood that through the above arrangement, it is convenient to set up multiple elastic strips 231, so that the contact position of the elastic strip 231 with the proliferative membrane and the retina is more uniform, and the supporting force is also greater, which is conducive to smoothly separating the proliferative membrane and the retina. Among them, the number of elastic strips 231 can be two, and the two elastic strips 231 are connected to form an ellipse. When the number of elastic strips 231 is greater than two, it can be a shape similar to the head of an egg beater.
[0032] Furthermore, the elastic strip 231 is a nickel-titanium wire. It can be understood that since the nickel-titanium wire has a memory function and good support strength, it can facilitate the expansion and separation of the proliferative membrane and the retina.
[0033] Optionally, the front end of the elastic body 23 is provided with a transition head 232, and the transition head 232 is conical. It can be understood that the provision of the transition head 232 facilitates the ability of the elastic body 23 to squeeze the gap between the proliferative membrane and the retina, so that the elastic body 23 can more easily extend into the gap between the proliferative membrane and the retina to separate the proliferative membrane from the retina.
[0034] Optionally, the cross section of the channel 11 is circular, the outer diameter of the channel 11 is 0.4 mm to 0.6 mm, and the inner diameter of the channel 11 is 0.3 mm to 0.5 mm. It can be understood that through the above arrangement, it is convenient for the 27G to 23G push rod 22 to move in the channel 11, and it is convenient to match the size of the proliferative membrane and the retina. Among them, the shell can be made of plastic or metal, and the push rod 22 can be made of metal or glass.
[0035] Optionally, the inner core component 2 also includes a rolling member 24, and the push-pull member 21 defines a second mounting groove 211 with openings at both ends. The rolling member 24 can be elastically pressed and installed in the second mounting groove 211, and the outer ring of the rolling member 24 is exposed at the two openings of the second mounting groove 211. A first tooth portion 241 is provided on the rolling member 24, and a second tooth portion 13 is provided at the bottom of the first mounting groove 12. When the rolling member 24 is pressed, the first tooth portion 241 engages with the second tooth portion 13. When the rolling member 24 rolls, it can drive the push-pull member 21 to slide. When the rolling member 24 is released from being pressed, the first tooth portion 241 disengages from the second tooth portion 13. It can be understood that since the extension speed and depth of the elastic body 23 are required to be high when the proliferative membrane is separated from the retina, the setting of the rolling member 24 can facilitate the addition of a rolling control mode to the sliding control mode of the original push-pull member 21. The operator presses the rolling member 24 to make the first tooth portion 241 on the rolling member 24 mesh with the second tooth portion 13 on the housing 1. The operator keeps pressing the rolling member 24 and then rolls it back and forth to achieve the extension speed and depth of the elastic body 23. That is, one is to achieve the rapid movement of the elastic body 23 by sliding the push-pull member 21, and the other is to achieve the precise movement of the elastic body 23 by rolling the rolling member 24. The operation is convenient and flexible, which is conducive to the expansion and separation of the proliferative membrane from the retina. Among them, the front and rear positions of the push-pull member 21 can be provided with anti-slip patterns to facilitate the sliding of the push-pull member 21, and the housing 1 adjacent to the push-pull member 21 can be provided with scales to facilitate the observation and control of the depth of the extension of the elastic body 23.
[0036] Furthermore, the rolling element 24 further includes a pressing portion 242 disposed on both sides of the first tooth portion 241, and the pressing portion 242 protrudes from the first tooth portion 241. It can be understood that by protruding the pressing portion 242 from the first tooth portion 241, it is convenient to hide the first tooth portion 241 at the lower part of the pressing portion 242, and the operator will not contact the first tooth portion 241 when pressing the rolling element 24, thereby improving the comfort of operation. Among them, the pressing portion 242 can be provided with an anti-skid pattern to facilitate increasing the friction between the finger and the rolling element 24, and the pressing portion 242 is provided with a rotating shaft 243, and the rotating shaft 243 is lifted and slid in the second mounting groove 211, and the rotating shaft 243 and the second mounting groove 211 are matched with a spring 25.
[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or several embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.
[0042] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.
Claims
1. An intraocular membrane separation device, characterized in that: include: Shell and core assembly; The housing has a channel and a first mounting groove with an open top, and the channel is communicated with the first mounting groove; The inner core component comprises a push-pull member, an injection rod and at least two elastic strips, each of the elastic strips is connected to form an elastic body that gradually shrinks from the middle to both ends, the push-pull member can be slidably installed in the first installation groove, the injection rod is inserted into the channel, one end of the injection rod is connected to the push-pull member, and the other end of the injection rod is connected to the elastic body, the push-pull member can drive the elastic body to move telescopically in and outside the channel, when the elastic body enters the channel from outside the channel, each of the elastic strips is restricted by the channel and gradually deforms toward the axis of the injection rod and moves closer, when the elastic body extends from the channel to the outside of the channel, each of the elastic strips gradually deforms away from the axis of the injection rod and expands.
2. The intraocular membrane separation device according to claim 1, characterized in that: The elastic strips are distributed at equal intervals around the axis of the injection rod.
3. The intraocular membrane separation device according to claim 2, characterized in that: The elastic strip is nickel-titanium wire.
4. The intraocular membrane separation device according to claim 1, characterized in that: A transition head is provided at the front end of the elastic body, and the transition head is conical.
5. The intraocular membrane separation device according to claim 1, characterized in that: The cross section of the channel is circular, the outer diameter of the channel is 0.4 mm to 0.6 mm, and the inner diameter of the channel is 0.3 mm to 0.5 mm.
6. The intraocular membrane separation device according to claim 1, characterized in that: The inner core component also includes a rolling member, the push-pull member defines a second mounting groove with openings at both ends, the rolling member can be elastically pressed and installed in the second mounting groove, and the outer ring of the rolling member is exposed at the two openings of the second mounting groove, the rolling member is provided with a first tooth portion, and the bottom of the first mounting groove is provided with a second tooth portion, when the rolling member is pressed, the first tooth portion engages with the second tooth portion, and the rolling member can drive the push-pull member to slide when rolling, and when the rolling member is released from being pressed, the first tooth portion is disengaged from the second tooth portion.
7. The intraocular membrane separation device according to claim 1, characterized in that: The rolling element further includes pressing portions arranged on both sides of the first tooth portion, and the pressing portions protrude from the first tooth portion.