Scalpel capable of controlling sclera flap manufacturing depth
By setting auxiliary sections and limiting planes on the blade of the scalpel, the problem of difficulty in accurately controlling the depth of the scalar flap in the prior art is solved, and a more accurate and safe surgical operation is achieved.
Patent Information
- Application Number
- CN202420922912.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The prior art is difficult to accurately control the cut depth of the scleral flap, resulting in an increased risk of filtration vesicle insufficiency and postoperative complications.
A controllable scalpel is designed to make a depth scalpel. By forming a first cut edge on the blade and providing an auxiliary slice thereon, the width of the auxiliary slice is smaller than the first cut edge, forming a limiting plane to limit the cutting depth.
It realizes precise control of the cut depth, reduces the difficulty of surgical operation, improves safety, and is simple in structure and low in cost.
Smart Images
Figure CN222657313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a scalpel capable of controlling the depth of making a scleral flap. Background Art
[0002] Scleral flap cutting plays a pivotal role in glaucoma filtration surgery. Its main purpose is to create a controllable filtration channel to reduce intraocular pressure, prevent optic nerve damage and visual field loss. The delicate operation during the cutting process helps maintain the integrity of the corneal structure, protect corneal endothelial cells, and avoid additional damage caused by improper surgical operation. The cutting depth of the scleral flap is a parameter that needs to be precisely controlled because it affects the stability and functionality of the postoperative filtering bleb. The appropriate cutting depth can ensure sufficient strength to prevent penetration and provide sufficient filtration area.
[0003] Currently, the tools used to cut scleral flaps during surgery, such as razor blades, mini tunnel knives, anterior chamber puncture knives, etc., are mostly used to cut through the front cutting edge or cutting point. Since the sclera of the eyeball is thin, the cutting depth requires very high precision. It is difficult to accurately control and grasp the depth of the scleral flap during the operation, which increases the risk of filtering bleb dysfunction and the chance of postoperative complications, so it needs to be improved. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model aims to provide a controllable scleral flap making depth scalpel capable of controlling the cutting depth.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A scalpel for making a controllable scleral flap depth comprises a handle and a blade, wherein a connecting portion is formed on the blade and connected to the handle, and a first cutting edge is formed on the blade;
[0007] The auxiliary slice is connected to the first cutting edge, and the width of the auxiliary slice is smaller than the first cutting edge, so that the first cutting edge forms a limiting surface relative to the auxiliary slice, and the limiting surface is used to contact the eyeball to limit the cutting depth of the auxiliary slice.
[0008] As a further improvement of the present invention, the first cutting edge is arranged corresponding to the front end of the blade.
[0009] As a further improvement of the present invention, the auxiliary slice is arranged corresponding to the center of the first cutting edge.
[0010] As a further improvement of the present invention, the maximum length of the auxiliary slice is 0.1mm-0.15mm, and the maximum width is 1mm.
[0011] As a further improvement of the present invention, the maximum length of the blade is 3 mm and the maximum width is 2.5 mm.
[0012] As a further improvement of the present invention, the length of the connecting portion is 10 mm.
[0013] As a further improvement of the present invention, the width of the auxiliary slice decreases from an end close to the first cutting edge to an end far from the first cutting edge.
[0014] As a further improvement of the present invention, the front end of the auxiliary slice forms an arc-shaped second cutting edge.
[0015] As a further improvement of the present invention, the connecting portion is detachably connected to the handle.
[0016] As a further improvement of the utility model, the detachable connection includes plug-in connection and threaded connection.
[0017] The beneficial effects of the utility model are as follows: by setting auxiliary slices on the first cutting edge and controlling the width of the auxiliary slices, the function of the first cutting edge as a limiting surface is achieved, so that medical staff can accurately grasp the cutting depth, reducing the difficulty coefficient of the doctor's operation, and being more precise and having a higher safety factor. At the same time, the overall structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall installation of the utility model;
[0019] Figure 2 This is a schematic diagram of the auxiliary slicing and blade installation of the utility model;
[0020] Figure 3 This is a schematic diagram of the auxiliary slicer and blade size of the utility model.
[0021] Figure numerals: 1. handle; 2. blade; 3. connecting part; 4. first cutting edge; 5. auxiliary cutting section; 6. limiting surface; 7. second cutting edge. DETAILED DESCRIPTION
[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, wherein the same components are indicated by the same reference numerals.
[0023] like Figure 1-3 As shown, a scalpel for making a controllable scleral flap depth includes a handle 1 and a blade 2. A connecting portion 3 is formed on the blade 2 and is connected to the handle 1. A first cutting edge 4 is formed on the blade 2. The first cutting edge 4 can be used for cutting at the equator, around the optic nerve, and other positions.
[0024] It also includes an auxiliary slice 5, which is connected to the first cutting edge 4. The width of the auxiliary slice 5 is smaller than the first cutting edge 4, so that the first cutting edge 4 forms a limiting surface 6 relative to the auxiliary slice 5, and the limiting surface 6 is used to contact the eyeball to limit the cutting depth of the auxiliary slice 5.
[0025] When in use, if the sclera needs to be sectioned, it can be sectioned only through the auxiliary slice 5. Since the width of the auxiliary slice 5 is smaller than the first sectioning edge 4, the auxiliary slice 5 can be interfered by the first sectioning edge 4 after being cut to a predetermined depth, that is, the cutting depth of the auxiliary slice 5 is controlled by the limiting surface 6, thereby ensuring the refined operation requirements of the sclera.
[0026] Preferably, the first cutting edge 4 is arranged corresponding to the front end of the blade 2, so as to facilitate hand-held cutting by medical personnel.
[0027] Preferably, the auxiliary slice 5 is arranged at the center corresponding to the first cutting edge 4. The central setting can facilitate the operation of medical staff and make the overall structure symmetrical to ensure the operating feel of medical staff. In other embodiments, the auxiliary slice 5 can also be arranged on both sides of the first cutting edge 4.
[0028] Preferably, the maximum length of the auxiliary slice 5 is 0.1mm-0.15mm, and in the present embodiment is 0.15mm, to ensure the maximum cutting depth, and the maximum width is 1mm. By setting the length of the auxiliary slice 5, it is possible to ensure that the cutting depth is between 1 / 2 and 2 / 3 of the total thickness of the sclera, thereby ensuring the strength after cutting.
[0029] Preferably, in this embodiment, the maximum length of the blade 2 is 3 mm and the maximum width is 2.5 mm.
[0030] Preferably, the length of the connecting portion 3 is 10 mm.
[0031] Preferably, the width of the auxiliary slice 5 decreases from one end close to the first cutting edge 4 to one end far from the first cutting edge 4. The decreasing width enables medical staff to grasp the depth more accurately.
[0032] Preferably, the front end of the auxiliary slice 5 forms an arc-shaped second cutting edge 7, which makes it easier for medical personnel to control the cutting depth and ensures that the channel is larger during one cutting. In another embodiment, the second cutting edge 7 can also be set to a triangular shape.
[0033] Preferably, the connection part 3 is detachably connected to the handle 1. Specifically, the detachable connection includes plug-in and threaded connection. In the present embodiment, the connection part 3 is threadedly connected to the handle 1, thereby ensuring the stability of the connection to prevent the connection part 3 from falling off.
[0034] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A scalpel for controlling the depth of scleral flap production, characterized in that: It comprises a handle (1) and a blade (2), wherein a connecting portion (3) is formed on the blade (2) and is connected to the handle (1), and a first cutting edge (4) is formed on the blade (2); An auxiliary slice (5), the auxiliary slice (5) is connected to the first cutting edge (4), the width of the auxiliary slice (5) is smaller than the first cutting edge (4), so that the first cutting edge (4) forms a limiting surface (6) relative to the auxiliary slice (5), and the limiting surface (6) is used to contact the eyeball to limit the cutting depth of the auxiliary slice (5).
2. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The first cutting edge (4) is arranged corresponding to the front end of the blade (2).
3. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The auxiliary slice (5) is arranged corresponding to the center of the first cutting edge (4).
4. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The auxiliary slice (5) has a maximum length of 0.1 mm to 0.15 mm and a maximum width of 1 mm.
5. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The maximum length of the blade (2) is 3 mm, and the maximum width is 2.5 mm.
6. The scalpel for controlling the depth of scleral flap production according to claim 1, characterized in that: The length of the connecting portion (3) is 10 mm.
7. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The width of the auxiliary slice (5) decreases gradually from an end close to the first cutting edge (4) to an end away from the first cutting edge (4).
8. The controllable scleral flap production depth surgical knife according to claim 7, characterized in that: The front end of the auxiliary slice (5) forms an arc-shaped second cutting edge (7).
9. The controllable scleral flap production depth surgical knife according to claim 1, characterized in that: The connecting portion (3) is detachably connected to the handle (1).