Sclera puncture cannula
By installing a rubber plug on the scleral puncture cannula and utilizing a slit structure to achieve smooth passage of surgical tools and fluid blocking, the problems of intraocular pressure loss and infection risk during scleral puncture surgery are solved, and the operation process is simplified.
Patent Information
- Application Number
- CN202422238741.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In existing scleral puncture surgeries, the cannula can easily cause loss of intraocular pressure when removed, and existing preventive measures require additional instruments and manual operations, increasing the risk of infection.
A scleral puncture cannula is designed. A rubber plug is installed at the upper end of the cannula. A slit is provided on the rubber plug. The slit is inclined from top to bottom for passing surgical tools. When there is no tool in the rubber plug, the fluid flow is prevented.
It enables scleral puncture surgery to be completed quickly and cleanly, reduces intraocular pressure loss and infection risks, and simplifies the operating procedures.
Smart Images
Figure CN223323667U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ophthalmic surgery, in particular to a sclera puncture cannula. Background Art
[0002] Scleral puncture surgery usually uses a cannula in combination with surgical instruments. When the surgical device is removed, the eye, acting as a pressure ball, may discharge aqueous humor or vitreous humor through the cannula. The existing technology's response is to insert a plug into the tube or install a sealed cannula to prevent the pressure of fluid and tissue and prevent the loss of intraocular pressure. However, the above response methods require additional instruments to the cannula and require medical personnel to assist in the operation, which is time-consuming and increases the risk of post-operative infection. Summary of the Invention
[0003] The utility model aims to provide a sclera puncture cannula.
[0004] In order to achieve the above purpose, the technical solution of the utility model is:
[0005] A scleral puncture cannula is characterized in that it includes a cannula and a plug. The cannula is configured to be inserted into the eye. The plug is fixed to the upper end of the cannula. A plurality of slits are provided on the upper part of the plug. The slits are radially arranged starting from the axis of the plug and are inclined from top to bottom.
[0006] Furthermore, two slits are provided on the upper portion of the rubber plug, and the two slits are in an L-shaped structure.
[0007] Furthermore, four slits are provided on the upper portion of the rubber plug, and the four slits are in a cross-shaped structure.
[0008] Furthermore, the angle between the slit and the vertical direction from top to bottom is 15°.
[0009] Furthermore, there is a distance between the outer end of the slit and the edge of the rubber plug.
[0010] The utility model installs a rubber plug at the upper end of the sleeve, and a slit is provided on the upper part of the rubber plug. During the puncture operation, surgical tools can enter the sleeve through the slit. When there is no surgical tool in the rubber plug, the slit structure can block the flow of fluid, prevent the loss of intraocular pressure during the operation, and ensure that the scleral puncture operation is completed quickly and cleanly. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the casing structure of an embodiment of the present utility model;
[0013] Figure 3This is a schematic diagram of the sleeve structure of another embodiment of the utility model;
[0014] Figure 4 This is a schematic diagram of the slits processed in the casing of the present invention;
[0015] Figure 5 This is a schematic structural diagram of a tool used for machining slits in a casing according to the present invention.
[0016] Reference numerals:
[0017] 1 sleeve, 2 rubber stoppers, 21 slits, 3 blades, 4 inclined tables. DETAILED DESCRIPTION
[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0019] The utility model discloses a scleral puncture cannula, such as Figure 1 As shown, it includes a sleeve 1 and a plug 2. The sleeve 1 is configured to be inserted into the eye. The plug 2 is fixed to the upper end of the sleeve 1. A plurality of slits 21 are provided on the upper portion of the plug 2. The slits 21 are radially arranged starting from the axis of the plug 2. There is a distance between the outer ends of the slits 21 and the edges of the plug 2. The slits 21 are inclined from top to bottom, and the angle between the slits 21 and the vertical direction from top to bottom is preferably 15°.
[0020] In one embodiment, Figure 2 As shown, two slits 21 are provided on the upper portion of the rubber plug 2, and the two slits 21 are L-shaped.
[0021] In another embodiment, if Figure 3 As shown, four slits 21 are provided on the upper portion of the rubber plug 2, and the four slits 21 are in a cross-shaped structure.
[0022] The method for processing the L-shaped slit 21 is as follows, see Figure 4 and Figure 5 , place the rubber plug 2 on the inclined table 4, the angle between the inclined table 4 and the horizontal direction is preferably 15°, use an L-shaped blade 3, insert the blade 3 vertically into the upper part of the rubber plug 2, and form two slits 21 with an angle of 75° to the horizontal direction (that is, an angle of 15° to the vertical direction), completing the processing of the L-shaped slits 21.
[0023] When the cross-shaped slit 21 needs to be processed, after the L-shaped slit 21 is processed, the rubber plug 2 is rotated 180° on the inclined table 4, and the blade 3 is again inserted vertically into the upper part of the rubber plug 2, at a position symmetrical to the center of the previous two slits 21, to complete the processing of the cross-shaped slit 21.
[0024] In the above embodiment, the lower end of the cannula 1 can be inserted into the eye for inserting and removing instruments during surgery. The plug 2 is installed at the upper end of the cannula 1, and surgical tools can enter the cannula 1 through the slit 21 on the upper part of the plug 2. The plug 2 can be provided with one or more slits to allow surgical tools to pass through and enter the cannula 1. When there is no surgical tool in the plug 2, the slit 21 structure can prevent fluid flow.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A scleral puncture cannula, characterized in that: The invention comprises a sleeve (1) and a plug (2), wherein the sleeve (1) is configured to be inserted into an eye, the plug (2) is fixed to the upper end of the sleeve (1), and a plurality of slits (21) are provided on the upper portion of the plug (2), wherein the slits (21) are radially arranged starting from the axis of the plug (2), and the slits (21) are inclined from top to bottom.
2. The scleral puncture cannula according to claim 1, characterized in that: Two slits (21) are provided on the upper portion of the rubber plug (2), and the two slits (21) are in an L-shaped structure.
3. The scleral puncture cannula according to claim 1, characterized in that: Four slits (21) are provided on the upper portion of the rubber plug (2), and the four slits (21) are in a cross-shaped structure.
4. The scleral puncture cannula according to claim 1, characterized in that: The angle between the slit (21) and the vertical direction from top to bottom is 15°.
5. The scleral puncture cannula according to claim 1, characterized in that: There is a distance between the outer end of the slit (21) and the edge of the rubber plug (2).