Novel microforceps
By designing a novel microforceps clamping surface and anti-slip structure, the problem of slippage when operating glaucoma gel drainage tubes with conventional microforceps was solved, achieving stable clamping and position adjustment of the drainage tubes and ensuring the smooth progress of the surgery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING AIER INTECH EYE HOSPITAL LTD
- Filing Date
- 2025-03-21
- Publication Date
- 2026-07-07
AI Technical Summary
Conventional microforceps are prone to slipping when manipulating glaucoma gel drainage tubes, making it difficult to hold and adjust the position of the drainage tube.
A novel micro forceps was designed, comprising two opposing forceps arms, a clamping surface, and an anti-slip structure. The anti-slip structure on the clamping surface enhances friction, and the clamping surface matches the outer diameter of the drainage tube. A connecting structure connects to the rear end of the forceps arms, adapting to the softness and smoothness of the drainage tube.
This effectively reduces slippage during clamping, ensuring a secure clamping of the drainage tube, allowing for easy position adjustment, and ensuring the smooth progress of the surgery.
Smart Images
Figure CN224461888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tweezers technology, and in particular to a novel microtweezers. Background Technology
[0002] In recent years, with the continuous development of minimally invasive techniques, minimally invasive glaucoma surgery has gradually become an important direction in the treatment of glaucoma. Glaucoma gel drainage tubes, as a minimally invasive procedure for subconjunctival drainage, have the advantages of less surgical trauma, a lower incidence of complications, and a shorter recovery time, and are therefore widely used in the treatment of glaucoma.
[0003] The glaucoma gel drainage tube is made of porcine collagen cross-linked with glutaraldehyde, exhibiting good tissue compatibility. The tube is 6 mm long, with a lumen diameter of 45 μm and an outer diameter of 145 μm. It has a certain degree of rigidity when dry, but becomes soft and elastic upon contact with water, while maintaining a smooth surface. During surgery, the drainage tube is implanted through the sclera via an internal or external approach. The ideal drainage positions are 1 mm within the anterior chamber, 2 mm within the scleral tunnel, and 3 mm under the bulbar conjunctiva. However, in some cases, the tube's position within the anterior chamber or under the conjunctiva is not ideal, requiring adjustment using microforceps. However, because the tube softens and becomes smooth upon contact with water, conventional microforceps are prone to slippage during operation, making gripping difficult and hindering accurate adjustment of the drainage tube's position.
[0004] Therefore, there is an urgent need for a new type of microforceps specifically designed for adjusting the position of the drainage tube in minimally invasive surgery for glaucoma gel drainage tubes. Utility Model Content
[0005] To address the aforementioned technical problems, the purpose of this utility model is to provide a novel microtweezer that can effectively reduce the slippage of the drainage tube during the clamping process.
[0006] The technical solution provided by this utility model is as follows:
[0007] A novel microtweezers, comprising:
[0008] Two tweezer arms positioned opposite each other;
[0009] Clamping surfaces are respectively disposed at the front ends of the two tweezer arms, and when the two clamping surfaces are close together, they form a clamping part for clamping the glaucoma drainage tube;
[0010] A connecting structure is attached to the rear ends of the two tweezer arms;
[0011] An anti-slip structure is provided on the clamping surface.
[0012] Furthermore, the two clamping surfaces are arranged in parallel. When no force is applied, the two clamping surfaces are far apart to form an open state. When force is applied, the two clamping surfaces are close together to form a clamping state.
[0013] Furthermore, the clamping surface has an arc structure, and when the two clamping surfaces are close together, the inner diameter of the clamping part formed matches the outer diameter of the glaucoma drainage tube.
[0014] Furthermore, the two clamping surfaces are symmetrically arranged, and the clamping surfaces are aligned in a straight line with the tweezers arm.
[0015] Furthermore, the two clamping surfaces are symmetrically arranged, and the clamping surfaces are arranged at an angle to the tweezers arm.
[0016] Furthermore, the two clamping surfaces are symmetrically arranged, and the clamping surfaces are widened clamping surfaces.
[0017] Furthermore, the anti-slip structure is horizontal stripes.
[0018] Furthermore, the anti-slip structure has a diamond-shaped texture.
[0019] Furthermore, a silicone cap is fitted onto the front end of the clamping surface.
[0020] Furthermore, the two clamping surfaces are arranged in opposite directions and cross each other. When no force is applied, the two clamping surfaces are close together to form a clamping state, and when force is applied, the two clamping surfaces are far apart to form an open state.
[0021] Compared with the prior art, the novel microscope provided by this utility model embodiment has at least the following technical advantages:
[0022] The novel microforceps comprises two opposing forceps arms, clamping surfaces, a connecting structure, and an anti-slip structure. The clamping surfaces are located at the front ends of the two forceps arms, forming a clamping portion for holding the glaucoma gel drainage tube when brought close together. The connecting structure connects to the rear ends of the two forceps arms. The anti-slip structure is located on the clamping surfaces. This design effectively reduces slippage of the drainage tube during clamping by enhancing the friction of the clamping surfaces, thus allowing the drainage tube to be held more securely and its position to be adjusted smoothly, ensuring the smooth progress of the surgical procedure. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the structure of a novel microtweezers according to an embodiment of the present invention;
[0025] Figure 2 This is a schematic diagram of the structure of a novel microtweezers according to another embodiment of the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of a novel microtweezers according to another embodiment of the present invention;
[0027] Figure 4 This is a schematic diagram of the structure of a novel microtweezers according to another embodiment of the present invention;
[0028] Figure 5 This is a schematic diagram of the structure in one embodiment of the present invention, showing two clamping surfaces arranged in opposite directions and intersecting each other.
[0029] Figure 6 This is a schematic diagram of the structure in another embodiment of the present invention, showing two clamping surfaces arranged in opposite directions and crossing each other.
[0030] Figure label:
[0031] 10. Tweezers arm; 20. Clamping surface; 30. Connecting structure; 40. Anti-slip structure. Detailed Implementation
[0032] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.
[0034] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" or "several" means two or more, unless otherwise explicitly specified.
[0036] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0037] In recent years, with the continuous development of minimally invasive techniques, minimally invasive glaucoma surgery has gradually become an important direction in the treatment of glaucoma. Glaucoma gel drainage tubes, as a minimally invasive procedure for subconjunctival drainage, have the advantages of less surgical trauma, a lower incidence of complications, and a shorter recovery time, and are therefore widely used in the treatment of glaucoma.
[0038] The glaucoma gel drainage tube is made of porcine collagen cross-linked with glutaraldehyde, exhibiting excellent tissue compatibility (in vitro experiments show that this implant material has good hydrolytic stability and biocompatibility, causing almost no tissue adhesion, fibrosis, or vascular reaction, nor leading to rejection by intraocular tissues, while also reducing the risk of drainage tube blockage). In an in vitro dry state, the glaucoma gel drainage tube maintains a certain degree of rigidity, while after implantation in the eye and contact with water, it forms a typical "S"-shaped curve within 1 to 2 minutes, demonstrating a soft and stable structure, thus better conforming to ocular tissues). The drainage tube is 6 mm long, with a lumen diameter of 45 μm and an outer diameter of 145 μm. It maintains a certain degree of rigidity when dry, but becomes soft and elastic upon contact with water, with a smooth surface. During surgery, the drainage tube is implanted through the sclera via an internal or external approach. The ideal drainage locations are 1 mm in the anterior chamber, 2 mm in the scleral tunnel, and 3 mm under the bulbar conjunctiva. However, in some cases, the drainage tube is not ideally positioned within the anterior chamber or under the conjunctiva, requiring adjustment using microforceps. But because the drainage tube softens and becomes smooth when wet, conventional microforceps are prone to slipping during operation, making it difficult to grasp and adjust the tube's position.
[0039] Please see the appendix Figure 1 To be continued Figure 6As shown, one embodiment of this utility model provides a novel microtweezers, including two opposing tweezer arms 10, a clamping surface 20, a connecting structure 30, and an anti-slip structure 40. The clamping surfaces 20 are respectively disposed at the front ends of the two tweezer arms 10, forming a clamping portion for clamping a glaucoma gel drainage tube when the two clamping surfaces 20 are close together. The connecting structure 30 is connected to the rear ends of the two tweezer arms 10. The anti-slip structure 40 is disposed on the clamping surface 20. The connecting structure 30 can be spring-loaded or hinged, and is not specifically limited here. Furthermore, the connecting structure 30 can also be integrally formed with the tweezer arms 10.
[0040] In this embodiment, the novel microforceps includes two opposing forceps arms 10, a clamping surface 20, a connecting structure 30, and an anti-slip structure 40. The clamping surfaces 20 are respectively disposed at the front ends of the two forceps arms 10, forming a clamping portion for clamping the glaucoma gel drainage tube when the two clamping surfaces 20 are close together. The connecting structure 30 is connected to the rear ends of the two forceps arms 10. The anti-slip structure 40 is disposed on the clamping surfaces 20. This design effectively reduces the slippage of the drainage tube during clamping by enhancing the friction of the clamping surfaces 20, thereby enabling the drainage tube to be clamped more securely and its position to be adjusted smoothly, ensuring the smooth progress of the surgical procedure.
[0041] In some optional embodiments, the two clamping surfaces 20 are arranged in parallel. When no force is applied, the two clamping surfaces 20 are far apart to form an open state. When force is applied, the two clamping surfaces 20 are close together to form a clamping state. When it is necessary to clamp the drainage tube, the operator applies external force to bring the two clamping surfaces 20 inward and make tight contact with the outer diameter of the drainage tube to clamp the drainage tube, thereby adjusting the position of the drainage tube.
[0042] Please refer to the appendix again. Figure 1 As shown, in some optional embodiments, the clamping surface 20 has an arc-shaped structure. When the two clamping surfaces 20 approach each other, the inner diameter of the clamping portion formed matches the outer diameter of the glaucoma gel drainage tube. In this embodiment, the clamping surface 20 is designed as an arc-shaped structure. The clamping portion formed when the two clamping surfaces 20 approach each other can effectively limit the drainage tube, making the drainage tube more securely clamped while effectively reducing the problem of the drainage tube breaking when excessive force is applied.
[0043] Please refer to the appendix again. Figure 2 As shown, the two clamping surfaces 20 are symmetrically arranged and are recessed to form two semi-circular arc structures. When the two semi-circular arc structures are close together, the inner diameter of the clamping part is matched with the outer diameter of the glaucoma gel drainage tube, which can more firmly clamp the drainage tube while effectively reducing the risk of the drainage tube breaking when excessive force is applied.
[0044] In some alternative embodiments, the two clamping surfaces 20 are symmetrically arranged, and the clamping surfaces 20 are aligned in a straight line with the forceps arm 10. This design is particularly suitable for adjusting the length of subconjunctival drainage tubes outside the eye.
[0045] Please refer to the appendix again. Figure 3 As shown, in some optional embodiments, the two clamping surfaces 20 are symmetrically arranged, and the clamping surfaces 20 are arranged at an angle to the forceps arm 10. This design is particularly suitable for adjusting the length of the drainage tube in the anterior chamber.
[0046] Please refer to the appendix again. Figure 4 As shown, in some optional embodiments, the two clamping surfaces 20 are symmetrically arranged, and the clamping surfaces 20 are widened clamping surfaces. This embodiment, by appropriately widening the clamping surfaces, increases the contact area between the clamping surfaces 20 and the drainage tube during clamping, thereby improving the stability of the clamping. This design is suitable for adjusting the length of the drainage tube within the conjunctiva.
[0047] In some optional embodiments, the anti-slip structure 40 is horizontal stripes. By providing horizontal stripes on the clamping surface 20, the friction between the clamping surface 20 and the drainage tube can be effectively increased, thereby reducing the slippage of the drainage tube during the clamping process.
[0048] In some alternative embodiments, the anti-slip structure 40 has a diamond-shaped texture. The diamond-shaped texture can generate multi-directional friction on the clamping surface 20, making the contact between the clamping surface 20 and the drainage tube more secure.
[0049] In some optional embodiments, a silicone cap is provided on the front end of the clamping surface 20 to avoid the risk of the drainage tube breaking due to excessive force during clamping, and to reduce the occurrence of accidents during the operation.
[0050] Please refer to the appendix again. Figure 5 and attached Figure 6 As shown, in some optional embodiments, the two clamping surfaces 20 are arranged in opposite directions and cross each other. When no force is applied, the two clamping surfaces 20 are close together to form a clamping state; when force is applied, the two clamping surfaces 20 are far apart to form an open state. In specific operation, the operator applies external force to open the two clamping surfaces 20 outward to place the drainage tube between the two clamping surfaces 20. Subsequently, the operator releases the applied external force, causing the two clamping surfaces 20 to return to their inward position and make tight contact with the outer diameter of the drainage tube, thereby firmly clamping the drainage tube and adjusting its position.
[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A novel type of microtweezers, characterized in that, include: Two tweezer arms positioned opposite each other; Clamping surfaces are respectively disposed at the front ends of the two tweezer arms, and when the two clamping surfaces are close together, they form a clamping part for clamping the glaucoma drainage tube; A connecting structure is attached to the rear ends of the two tweezer arms; An anti-slip structure is provided on the clamping surface.
2. The novel microtweezers according to claim 1, characterized in that, The two clamping surfaces are arranged in parallel. When no force is applied, the two clamping surfaces are far apart to form an open state. When force is applied, the two clamping surfaces are close together to form a clamping state.
3. The novel microtweezers according to claim 2, characterized in that, The clamping surface has an arc structure. When the two clamping surfaces are close together, the inner diameter of the clamping part is matched with the outer diameter of the glaucoma drainage tube.
4. The novel microtweezers according to claim 1, characterized in that, The two clamping surfaces are symmetrically arranged, and the clamping surfaces are aligned in a straight line with the tweezers arm.
5. The novel microtweezers according to claim 1, characterized in that, The two clamping surfaces are symmetrically arranged, and the clamping surfaces are arranged at an angle to the tweezers arm.
6. The novel microtweezers according to claim 1, characterized in that, The two clamping surfaces are symmetrically arranged, and the clamping surfaces are widened clamping surfaces.
7. The novel microtweezers according to claim 1, characterized in that, The anti-slip structure consists of horizontal stripes.
8. The novel microtweezers according to claim 1, characterized in that, The anti-slip structure has a diamond-shaped texture.
9. The novel microtweezers according to claim 1, characterized in that, A silicone cap is fitted onto the front end of the clamping surface.
10. The novel microtweezers according to claim 1, characterized in that, The two clamping surfaces are arranged in opposite directions and cross each other. When no force is applied, the two clamping surfaces are close together to form a clamping state. When force is applied, the two clamping surfaces are far apart to form an open state.