A tear-out forceps for tearing off a collapsed capsule

Abstract

The utility model relates to a kind of tear out pincers for tearing out crinkle capsule membrane, including middle pole, inner pole and clamp, the middle pole is tubular, the inner pole is installed in the middle pole, the inner pole is installed with inner pole, the inner pole is provided with two bifurcated prongs on one end, the prong tip is provided with clamp, the other end of the inner pole is installed with the reset plate connected with middle pole, when reset plate contracts, the end of inner pole setting prong opens, so that two clamps open, when reset plate unfolds, the end of inner pole setting prong is retracted into middle pole, two clamps are combined.The utility model has the characteristics of simple principle, can effectively improve the operation efficiency of bag crinkle, reduce the risk of surgical complications, conveniently clamp crinkle capsule membrane etc..

Description

Technical Field

[0001] This utility model relates to the field of ophthalmic medical device technology, and in particular to a tearing forceps for tearing off shrunken capsule membranes. Background Technology

[0002] Cataracts are the most common cause of blindness in ophthalmology. In recent years, with the continuous promotion of phacoemulsification technology and the application of various functional intraocular lenses, cataract surgery has transformed from a simple sight-restoring surgery into a refractive surgery. Simultaneously, patients' demands for postoperative visual quality are increasing. Many factors affect postoperative visual outcomes after cataract surgery, and capsular bag shrinkage is one of them. Capsular bag shrinkage syndrome is a syndrome characterized by a reduction in the diameter of the capsular bag's equatorial portion after intraocular lens implantation, accompanied by fibrosis of the anterior capsular orifice and a reduction in the capsulorhexis area. It is a complication caused by continuous ring-shaped capsulorhexis during cataract extraction surgery, with an incidence rate of 1.4% to 14%. Common manifestations include glare, visual impairment, changes in refractive power, and even intraocular lens dislocation. The occurrence of this complication is related to factors such as an excessively small capsulorhexis diameter or incomplete polishing of the anterior capsular membrane during cataract surgery. The current clinical consensus for the treatment of capsular pouch shrinkage is that early or advanced stages can be treated non-invasively with YAG laser, while severe capsular pouch shrinkage requires surgical incision of the capsular membrane to remove part of the cloudy and fibrotic anterior capsular membrane in order to relieve its traction on the lens suspensory ligaments and restore the optical zone.

[0003] Currently, in clinical surgery, surgeons typically need to grasp the fibrotic capsule at the edge of the capsular opening without a support point or counterforce, and separate it by considerable tearing force. This process carries significant iatrogenic risks. First, when forcefully tearing the capsular opening, the tearing force is directly transmitted to the suspensory ligaments of the lens, easily causing ligament laxity or rupture, which is counterproductive. Second, due to the lack of counterforce during tearing, there is a lack of control during the tearing process, easily leading to penetrating tears of the capsule or irregular capsular openings.

[0004] In summary, for patients experiencing severe capsular retraction after phacoemulsification cataract surgery, there is a lack of currently available ophthalmic instruments that can safely remove the retracted capsular membrane while effectively protecting the lens suspensory ligaments. Therefore, there is an urgent need to develop an ophthalmic instrument that avoids the aforementioned iatrogenic risks, but no such instruments have been reported to date. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a tearing forceps for tearing off the wrinkled capsule membrane, which has the characteristics of simple principle, can effectively improve the surgical efficiency of capsule wrinkling, reduce the risk of surgical complications, and conveniently clamp the wrinkled capsule membrane.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A tearing forceps for tearing off shrunken capsule membranes is provided, comprising a middle rod, an inner rod, and clamps. The middle rod is a tubular assembly, and the inner rod is installed through the middle rod. Two forked branches are provided at one end of the inner rod, and clamps are provided at the ends of the branches. A reset plate connected to the middle rod is installed at the other end of the inner rod. When the reset plate retracts, the end of the inner rod with the branches opens, causing the two clamps to open. When the reset plate unfolds, the end of the inner rod with the branches retracts into the middle rod, and the two clamps engage.

[0007] In this technical solution, a central rod is used to guide the inner rod, allowing the inner rod to reciprocate along the inner hole of the central rod. A clamp branch is used to facilitate the placement of the clamps, and the clamps are used to easily grasp the wrinkled capsule membrane. A repositioning plate is used to facilitate the doctor's operation, simplifying the operation steps and effectively improving the surgical efficiency of capsule wrinkling.

[0008] As a supplement to this technical solution, the clamps are made without sharp edges, which greatly improves the safety of the tearing tweezers.

[0009] As a supplement to this technical solution, a connecting sleeve is provided on one end of the middle rod mounting reset plate, and a protective sleeve is installed on the connecting sleeve. The use of the connecting sleeve and the protective sleeve is to improve the service life of this part and improve the doctor's operating feel.

[0010] As a supplement to this technical solution, the protective sleeve and the connecting sleeve are connected by a threaded structure, which facilitates the installation and removal of the protective sleeve.

[0011] As a supplement to this technical solution, a top plate is provided on one end of the inner rod and connected to one end of the reset plate. The top plate is installed to facilitate pushing the inner rod.

[0012] Beneficial effects: This utility model relates to a tearing forceps for tearing off the wrinkled capsule membrane. A central rod guides an inner rod, allowing the inner rod to reciprocate along the inner hole of the central rod. A clamp branch facilitates the placement of the clamps, and the clamps are designed to easily grasp the wrinkled capsule membrane. A repositioning plate facilitates the surgeon's operation, simplifying the procedure and effectively improving the surgical efficiency of capsule wrinkling. It features a simple principle, effectively improves the surgical efficiency of capsule wrinkling, reduces the risk of surgical complications, and facilitates the grasping of the wrinkled capsule membrane. Attached Figure Description

[0013] Figure 1 This is a structural view of the present invention;

[0014] Figure 2 This is a structural view of the inner rod described in this utility model.

[0015] Diagram: 1. Middle rod, 2. Connecting sleeve, 3. Protective sleeve, 4. Top plate, 5. Reset plate, 6. Inner rod, 7. Clamp, 8. Pliers. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0017] The present invention relates to a tearing forceps for tearing off shrunken capsule membranes, such as... Figure 1 As shown in Figure 2, the device includes a middle rod 1, an inner rod 6, and clamps 7. The middle rod 1 is a tubular assembly, and the inner rod 6 is installed through it. One end of the inner rod 6 has two forked pincers 8, and the ends of the pincers 8 are fitted with clamps 7. The other end of the inner rod 6 is fitted with a reset plate 5 connected to the middle rod 1. When the reset plate 5 retracts, the end of the inner rod 6 with the pincers 8 opens, causing the two clamps 7 to open. When the reset plate 5 unfolds, the end of the inner rod 6 with the pincers 8 retracts into the middle rod 1, and the two clamps 7 engage.

[0018] In this technical solution, a middle rod 1 is set to guide the inner rod 6, so that the inner rod 6 can reciprocate along the inner hole of the middle rod 1. A clamp branch 8 is set to facilitate the placement of the clamp 7. The clamp 7 is set to facilitate the clamping of the wrinkled capsule membrane. A reset plate 5 is set to facilitate the operation of the doctor, simplify the operation steps, and effectively improve the surgical efficiency of capsule wrinkling.

[0019] As a supplement to this technical solution, the clamp 7 is made without edges, which greatly improves the safety of the tearing tweezers.

[0020] As a supplement to this technical solution, a connecting sleeve 2 is provided on one end of the middle rod 1 where the reset plate 5 is installed, and a protective sleeve 3 is installed on the connecting sleeve 2. The use of the connecting sleeve 2 and the protective sleeve 3 is to improve the service life of this part and improve the doctor's operating feel.

[0021] As a supplement to this technical solution, the protective sleeve 3 and the connecting sleeve 2 are connected by a threaded structure, which facilitates the assembly and disassembly of the protective sleeve 3.

[0022] As a supplement to this technical solution, a top plate 4 is provided on one end of the inner rod 6 and connected to one end of the reset plate 5. The top plate 4 is installed to facilitate pushing the inner rod 6.

[0023] Example

[0024] When operating this device, the doctor holds the middle rod 1 and then pushes the top plate 4. The top plate 4 pushes the inner rod 6. One end of the inner rod 6 with the clamp branch 8 extends towards the middle rod 1. Under its own elasticity, the clamp branch 8 opens, allowing the two clamps 7 to open. Then, one of the two clamps 7 supports one end of the constricted capsule. Then, the repositioning plate 5 is opened, allowing the inner rod 6 to move. The clamp branch 8 retracts into the middle rod 1, and the clamp 7 can clamp the constricted capsule.

Claims

1. A tearing forceps for removing taut capsule membranes, characterized in that: The device includes a middle rod (1), an inner rod (6), and clamps (7). The middle rod (1) is a tubular assembly. The inner rod (6) is installed through the middle rod (1). Two forked branches (8) are provided on one end of the inner rod (6). The clamps (7) are provided at the ends of the branches (8). A reset plate (5) connected to the middle rod (1) is installed on the other end of the inner rod (6). When the reset plate (5) retracts, the end of the inner rod (6) with the branches (8) opens, causing the two clamps (7) to open. When the reset plate (5) unfolds, the end of the inner rod (6) with the branches (8) retracts into the middle rod (1), and the two clamps (7) engage.

2. The tearing forceps for tearing off taut capsule membranes according to claim 1, characterized in that: The clamp (7) is treated to be angular-free.

3. The tearing forceps for tearing off taut capsule membranes according to claim 1, characterized in that: The middle rod (1) is provided with a connecting sleeve (2) on one end of the reset plate (5), and a protective sleeve (3) is installed on the connecting sleeve (2).

4. The tearing forceps for tearing off taut capsule membrane according to claim 3, characterized in that: The protective sleeve (3) and the connecting sleeve (2) are connected by a threaded structure.

5. The tearing forceps for tearing off taut capsule membranes according to claim 1, characterized in that: One end of the inner rod (6) is provided with a top plate (4) that is connected to one end of the reset plate (5).

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