Sclera pressing device with marking function

Abstract

The utility model relates to a sclera pressing device with a marking function, which comprises an outer rod and a marking assembly, the outer rod comprises a rod body with a hollow cavity and a pressing end, the pressing end is arranged on the rod body and provided with a through hole communicated with the hollow cavity of the rod body, the marking assembly is arranged in the rod body through the hollow cavity, and the marking assembly is arranged on the outer rod. The marking assembly is arranged on the outer rod, one end of the marking assembly extends into the jacking end head through hole, the fixing piece is arranged on the outer rod and makes contact with the marking assembly, the marking assembly is placed in the hollow cavity and fixed through cooperation of the rod body and the fixing piece, meanwhile, the marking assembly extends into the jacking end head through hole through the hollow cavity, and the marking assembly and the jacking end head form an integral jacking marking end. When the jacking end is operated to jack and press the sclera, the marking assembly marks the dye to the contact position of the jacking end and the sclera, so that the sclera jacking device is clear in positioning mark and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the field of ophthalmic medical instruments, in particular to a scleral depressor with a marking function. Background Art

[0002] The scleral depressor is an instrument used in the treatment of retinal diseases, and is mainly used for the inspection and positioning of peripheral retinal tears in retinal detachment surgery. Existing depressors are positioned by an irregular tooth-like structure at the end, relying on indentations, or using scleral sutures for positioning.

[0003] At present, during the use of scleral depressors, there are two positioning methods. The former has unclear positioning indentations due to usage limitations, which affects subsequent operations. The latter requires multiple punctures and sutures of the sclera, which is troublesome to operate and may even cause damage to the sclera. Utility Model Content

[0004] Based on the above description, the utility model provides a scleral depressor with a marking function to solve the problem of unclear positioning and troublesome operation of the scleral depressor.

[0005] The technical solution of the utility model to solve the above technical problems is as follows:

[0006] A scleral depressor with a marking function, comprising:

[0007] The outer rod comprises a rod body with a hollow cavity and a pressing end head, wherein the pressing end head is arranged on the rod body and the pressing end head is provided with a through hole communicating with the hollow cavity of the rod body;

[0008] A marking component, which is disposed in the rod body through a hollow cavity, and one end of which extends into the through hole of the pressing end;

[0009] A fixing member is arranged on the outer rod and contacts the marking assembly.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the rod body includes a thick rod portion and a thin rod portion, and the hollow cavity passes through the thick rod portion and the thin rod portion.

[0012] Furthermore, the pressing end is provided with protrusions distributed in an annular manner with the through hole as the center.

[0013] Furthermore, the marking assembly includes a hollow cylinder, a piston rod and a needle, the hollow cylinder is arranged in the thick rod part through a hollow cavity, the piston rod is arranged on the hollow cylinder, the needle is arranged on the hollow cylinder, and the needle passes through the thin rod part through the hollow cavity and extends into the through hole of the top pressing end.

[0014] Furthermore, the fixing member includes branches symmetrically arranged outside the thick rod part, the branches are provided with pressure blocks, the pressure blocks are tightly attached to the hollow tube, and the branches are provided with pressure plates, and a gap is left between the pressure plate and the thick rod part.

[0015] Furthermore, a buckle plate is provided on the branch, and the buckle plate is located outside the piston rod.

[0016] Furthermore, a groove is formed at one end of the buckle plate close to the piston rod, and a rubber pad is arranged in the groove.

[0017] Furthermore, a pressing ring is arranged outside the thick rod portion, and one end of the pressing ring is located in the interval.

[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0019] The utility model provides an outer rod, a marking component and a fixing piece, and through the cooperation between the rod body and the fixing piece, the marking component is placed in the hollow cavity and fixed, and at the same time the marking component extends through the hollow cavity to the through hole of the pressing end head, and forms an integral pressing marking end with the pressing end head. When the pressing end head is operated to press the sclera, the marking component marks the contact position between the pressing end head and the sclera with a dye, so that the positioning mark of the scleral pressing device is clear and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a scleral depressor with a marking function provided by an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A area;

[0022] Figure 3 This is a schematic diagram of the structure of the marking component in the embodiment of the utility model;

[0023] Figure 4 for Figure 1 A structural diagram from another perspective;

[0024] Figure 5 for Figure 4 A partial enlarged schematic diagram of the middle B area;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Outer rod; 11. Rod body; 111. Thick rod; 112. Thin rod; 12. Pressing end; 2. Marking assembly; 21. Empty cylinder; 22. Piston rod; 23. Needle; 3. Fixing piece; 31. Branch; 32. Pressing block; 33. Pressing plate; 4. Protrusion; 5. Buckle plate; 6. Pressing ring. DETAILED DESCRIPTION

[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0029] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It should be understood that in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, the element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Therefore, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0030] See also Figure 1-5 A scleral depressor with a marking function comprises an outer rod 1, a marking component 2 and a fixing member 3. The outer rod 1 comprises a rod body 11 with a hollow cavity, a pressing end 12 is arranged on the rod body 11, and a through hole communicating with the hollow cavity of the rod body 11 is opened on the pressing end 12. The marking component 2 is arranged in the rod body 11 through the hollow cavity, and one end extends into the through hole of the pressing end 12. The fixing member 3 is arranged on the outer rod 1 and contacts with the marking component 2.

[0031] Based on the above, in this embodiment, the marking component 2 is installed in the hollow cavity and fixed in the rod body 11 through the cooperation between the rod body 11 and the fixing part 3. At the same time, the marking component 2 extends through the hollow cavity to the through hole of the pressing end head 12, and forms an integral pressing marking end with the pressing end head 12. In this way, the rod body 11 is operated to drive the pressing end head 12 to press the sclera, and then the marking component 2 is operated to mark the dye at the contact position between the pressing end head 12 and the sclera, so that the positioning mark of the scleral pressing device is clear and the operation is convenient.

[0032] See also Figure 1-5The rod body 11 includes a thick rod portion 111 and a thin rod portion 112, and the hollow cavity runs through the thick rod portion 111 and the thin rod portion 112. The marking component 2 includes a hollow cylinder 21, a piston rod 22 and a needle 23. The hollow cylinder 21 is arranged in the thick rod portion 111 through the hollow cavity, the piston rod 22 is arranged on the hollow cylinder 21, and the needle 23 is arranged on the hollow cylinder 21. The needle 23 passes through the thin rod portion 112 through the hollow cavity and extends to the through hole of the top pressing end 12.

[0033] In the above-mentioned marking by the rod body 11 operating the pressing end 12 to cooperate with the marking component 2, the rod body 11 of this embodiment is divided into two end structures of a thick rod part 111 and a thin rod part 112. The thick rod part 111 cooperates with the hollow cavity to place an empty cylinder 21 for storing the dye. With the empty cylinder 21 inserted, the needle 23 first enters the hollow cavity at the thick rod part 111, and then enters the hollow cavity at the thin rod part 112. After the empty cylinder 21 completely enters the hollow cavity at the thick rod part 111, the needle 23 passes through the hollow cavity at the thin rod part 112 and enters the through hole of the pressing end 12, so that the marking component 2 is completely accommodated in the rod body 11 and the pressing end 12.

[0034] Regarding the pressing end 12 pressing the sclera to cooperate with the marking component 2 for marking, the pressing end 12 of this embodiment is provided with protrusions 4 distributed in a ring shape with the through hole as the center. The protrusions 4 cooperate with the pressing end 12 to contact the sclera to avoid lateral displacement of the pressing end 12. At the same time, the protrusions are distributed outside the through hole to assist the piston rod 22 to press into the empty cylinder 21 to squeeze out the dye through the through hole to mark the sclera.

[0035] See also Figure 1-5 The fixing member 3 includes a branch 31 symmetrically arranged outside the thick rod portion 111, a pressing block 32 is arranged on the branch 31, the pressing block 32 is tightly attached to the empty cylinder 21, and a pressing plate 33 is arranged on the branch 31, and a gap is left between the pressing plate 33 and the thick rod portion 111.

[0036] Based on the fact that the marking component 2 is completely accommodated by the rod body 11, the end face of the empty cylinder 21 is flush with the end face area of ​​the thick rod portion 111. Therefore, this embodiment adopts the branch 31 as the base, and the pressure block 32 and the pressure plate 33 are distributed on both sides of the branch 31 as force points. Under normal conditions, the pressure block 32 contacts the end faces of the thick rod portion 111 and the empty cylinder 21 at the same time, restricting the empty cylinder 21 in the thick rod portion 111. When force is applied to the pressure plate 33, the branch 31 is deformed by the pressure plate 33 and moves in a direction close to the thick rod portion 111, driving the pressure block 32 to separate from the empty cylinder 21. At this time, the external restriction of the empty cylinder 21 is released, and the empty cylinder 21 and the needle 23 can be pulled out of the rod body 11 through the piston 22 rod, and the reusable empty cylinder 21 and the disposable needle 23 are separated for next use.

[0037] The cam 32 is provided with a rubber pad in the groove, and a pressing ring 6 is provided outside the thick rod 111, and one end of the pressing ring 6 is located in the interval. The cam 32 is provided at the connection between the cam 32, the pressing block 32 and the pressing plate 33, and the cam 32 is moved closer to the middle piston rod 22. When the pressing ring 6 is pushed along the thick rod 111 toward the pressing plate 33 and squeezed between the pressing plate 33 and the thick rod 111, the pressing ring 6 acts behind the pressing plate 33, expands outwards and drives the cam 31 to deform, and then acts on the pressing ring 6 to make the two parts close to each other and contact the piston rod 22 with the rubber pad. In this way, by changing the force of the cam 32 on the piston rod 22, the obstruction to the piston rod 22 is indirectly increased, so that it is slowly pressed into the empty cylinder 21.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A scleral depressor with a marking function, characterized in that: include An outer rod (1) comprises a rod body (11) provided with a hollow cavity and a pressing end head (12), wherein the pressing end head (12) is arranged on the rod body (11), and the pressing end head (12) is provided with a through hole communicating with the hollow cavity of the rod body (11); A marking component (2), which is disposed in the rod body (11) through a hollow cavity, and one end of which extends into a through hole of the pressing end head (12); A fixing member (3) is arranged on the outer rod (1) and is in contact with the marking assembly (2).

2. The scleral depressor with marking function according to claim 1, characterized in that: The rod body (11) comprises a thick rod portion (111) and a thin rod portion (112), and the hollow cavity passes through the thick rod portion (111) and the thin rod portion (112).

3. The scleral depressor with marking function according to claim 1, characterized in that: The pressing end head (12) is provided with protrusions (4) distributed in an annular manner with the through hole as the center.

4. The scleral depressor with marking function according to claim 2, characterized in that: The marking assembly (2) comprises a hollow cylinder (21), a piston rod (22) and a needle (23); the hollow cylinder (21) is arranged in the thick rod portion (111) through a hollow cavity; the piston rod (22) is arranged on the hollow cylinder (21); the needle (23) is arranged in the hollow cylinder (21); the needle (23) passes through the thin rod portion (112) through the hollow cavity and extends into the through hole of the pressing end (12).

5. The scleral depressor with marking function according to claim 4, characterized in that: The fixing member (3) comprises a branch (31) symmetrically arranged outside the thick rod portion (111); a pressing block (32) is arranged on the branch (31); the pressing block (32) is tightly attached to the hollow cylinder (21); a pressing plate (33) is arranged on the branch (31); a gap is left between the pressing plate (33) and the thick rod portion (111).

6. The scleral depressor with marking function according to claim 5, characterized in that: A buckle plate (5) is provided on the branch (31), and the buckle plate (5) is located outside the piston rod (22).

7. The scleral depressor with marking function according to claim 6, characterized in that: A groove is formed at one end of the buckle plate (5) close to the piston rod (22), and a rubber pad is arranged in the groove.

8. The scleral depressor with marking function according to claim 5, characterized in that: A pressing ring (6) is arranged outside the thick rod portion (111), and one end of the pressing ring (6) is located in the interval.

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