Film tearing assembly for tearing collapsed capsule film and using method thereof

Abstract

The invention relates to a film tearing assembly for tearing a collapsed capsule film and a using method thereof.The film tearing assembly comprises a negative pressure auxiliary rod and film tearing tweezers, the negative pressure auxiliary rod comprises a negative pressure rod sleeve, a negative pressure rod and a suction disc, the negative pressure rod capable of axially moving is installed in the negative pressure rod sleeve, the suction disc is installed at one end of the negative pressure rod, and the negative pressure rod is sleeved with the negative pressure rod sleeve. A negative pressure pipeline is installed at the other end of the negative pressure rod, a negative pressure hole is formed in the suction disc, a negative pressure channel communicated with the negative pressure hole and the negative pressure pipeline is formed in the middle of the negative pressure rod, the film tearing tweezers comprise a film tearing rod sleeve, a film tearing inner rod and a clamp, the film tearing rod sleeve is in a pipe sleeve shape, and the film tearing inner rod is arranged in the film tearing rod sleeve. A film tearing inner rod is axially and movably installed in the film tearing rod sleeve, and two forked clamp branches are arranged at one end of the film tearing inner rod. The device has the advantages that the principle is simple, the operation efficiency of bag shrinking can be effectively improved, the risk of operative complications is reduced, and the shrinking bag membrane can be conveniently clamped.

Description

Technical Field

[0001] The invention relates to the technical field of ophthalmic medical instruments, and in particular to a film tearing component for tearing off a wrinkled capsule membrane and a use method thereof. Background Art

[0002] Cataract is the most common blinding eye disease in ophthalmology. In recent years, with the continuous promotion of phacoemulsification technology and the application of various functional intraocular lenses, cataract surgery has changed from a simple vision restoration surgery to a refractive surgery. At the same time, patients have higher and higher requirements for postoperative visual quality. There are many factors that affect the visual effect after cataract surgery, and capsular shrinkage is one of them. Capsular bag shrinkage syndrome is a syndrome characterized by the reduction of the diameter of the equatorial part of the lens bag after the implantation of the intraocular lens in the capsular bag, accompanied by fibrosis of the anterior capsule of the lens and a reduction in the capsulorhexis area. It is a complication caused by continuous circular capsulorhexis during cataract extraction surgery, with an incidence rate of 1.4% to 14%, often manifested as glare, visual impairment, changes in refractive power, and even intraocular lens dislocation. The occurrence of this complication is related to factors such as too small a capsulorhexis diameter or incomplete polishing of the anterior capsule during cataract surgery. The current clinical consensus on the treatment of capsular bag shrinkage is that early or advanced stages can be treated with non-invasive intervention using YAG laser, while severe capsular bag shrinkage requires surgical capsulotomy to remove part of the cloudy and fibrotic anterior capsule to release its traction on the lens suspensory ligaments and restore the optical zone.

[0003] At present, in clinical surgery, the surgeon usually needs to pinch the fibrotic capsule at the edge of the capsular bag opening in the absence of a support point and reaction force, and separate it by a large tearing force. This process has a large medical risk. First, when the capsular bag opening is torn vigorously, the tearing force is directly transmitted to the lens suspensory ligament, which is easy to cause the suspensory ligament to loosen or break, which is not worth the loss. In addition, due to the lack of impact force during tearing, there is a lack of control during the tearing process, which is easy to cause a through tear of the capsule or an irregular capsulorhexis.

[0004] In summary, for patients with severe capsular shrinkage after phacoemulsification, the currently available surgical instruments lack ophthalmic instruments that can safely remove the shrinkage capsule and effectively protect the lens suspensory ligament. Therefore, it is urgent to develop an ophthalmic instrument that can avoid the above medical risks, but there is no report on such an instrument. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a tearing assembly for tearing off the wrinkled capsule membrane and a method of using the tearing assembly, which can be used for patients with fibrosis and wrinkling of the anterior capsule opening after cataract surgery. Aiming at the stress problem of the lens suspensory ligament during surgery, the surgical instrument is designed with a capsule negative pressure suction disc, which attracts the capsule membrane at a specific part through negative pressure, and forms a reaction force with the tearing force at a specific clamping part, effectively offsetting and removing the stress on the capsule membrane itself and the lens suspensory ligament, thereby protecting the suspensory ligament from loosening or breaking. The invention has a simple principle and an ingenious design, which can effectively improve the surgical efficiency of capsule bag wrinkling and reduce the risk of surgical complications.

[0006] The technical solution adopted by the present invention to solve its technical problems is: to provide a film tearing assembly for tearing off the wrinkled cyst membrane, including a negative pressure auxiliary rod and film tearing tweezers, the negative pressure auxiliary rod including a negative pressure rod sleeve, a negative pressure rod and a suction plate, an axially movable negative pressure rod is installed inside the negative pressure rod sleeve, a suction plate is installed on one end of the negative pressure rod, a negative pressure pipeline is installed on the other end of the negative pressure rod, a negative pressure hole is arranged on the suction plate, a negative pressure channel connecting the negative pressure hole and the negative pressure pipeline is arranged in the middle of the negative pressure rod, the film tearing tweezers include a film tearing rod sleeve, a film tearing inner rod and clamps, the film tearing rod sleeve is in the shape of a tube sleeve, an axially movable film tearing inner rod is installed in the film tearing rod sleeve, two forked clamp branches are arranged on one end of the film tearing inner rod, and clamps are arranged on the ends of the clamp branches.

[0007] In the technical scheme, a negative pressure rod sleeve is provided to serve as the running track of the negative pressure rod, a suction plate and a negative pressure pipe are installed to facilitate the negative pressure hole to adsorb the shrinkage cyst membrane, thereby playing a role in fixing the shrinkage cyst membrane, a film tearing rod sleeve is installed to serve as the running track of the film tearing inner rod, the film tearing inner rod is used to facilitate the closing or opening of the clamp, and the clamp is provided to clamp the edge of the shrinkage cyst membrane, thereby facilitating the film tearing action.

[0008] As a supplement to the present technical solution, a rod sleeve node is arranged on one end of the negative pressure rod sleeve close to the negative pressure pipe, an inner rod node is arranged on one end of the negative pressure rod where the negative pressure pipe is arranged, a spring is sleeved on one end of the negative pressure rod close to the inner rod node, and the two ends of the spring are respectively against the rod sleeve node and the inner rod node. In the present technical solution, the rod sleeve node and the inner rod node are arranged to facilitate the limitation of the spring.

[0009] As a supplement to the technical solution, a first reset plate is installed between the rod sleeve node and the inner rod node, and the first reset plate is installed to limit the running distance between the rod sleeve node and the inner rod node.

[0010] As a supplement to the present technical solution, a top plate structure is provided on the other end of the film-tearing inner rod, a connecting body is provided on the end of the film-tearing rod sleeve close to the top plate structure, and a protective cap corresponding to the top plate structure is installed on the connecting body. The protective cap is provided to protect the top plate structure, and the top plate structure is used to facilitate pushing the film-tearing inner rod.

[0011] As a supplement to the present technical solution, a second reset plate is installed between the top plate structure and the connector, and the second reset plate is provided to facilitate limiting the moving distance of the top plate structure.

[0012] As a supplement to the technical solution, the outer extension of the attraction plate is made of silicone material, and when the negative pressure rod is retracted, the attraction plate can be deformed and retracted into the negative pressure rod sleeve.

[0013] As a supplement to the technical solution, the clamps adopt a non-edge structure. When the film tearing inner rod is retracted, the two clamps and the clamp branches are combined and retracted into the film tearing rod sleeve.

[0014] A method for using a film-tearing component for tearing off a wrinkled capsule membrane comprises the following specific steps: step one: using lidocaine to perform surface anesthesia on the cornea and sclera; step two: making a 2-3mm corneal tunnel incision at the 11 o'clock position of the cornea and sclera; step three: making a 2-3mm measuring incision at the 2 o'clock position; step four: sending a negative pressure auxiliary rod and a film-tearing forceps forward; step five: when the negative pressure hole of the negative pressure auxiliary rod is attached to the capsule membrane at a specific position, the position should be about 2mm away from the edge of the fibrotic and wrinkled diseased capsule membrane, turn on an external negative pressure device and adjust it to the optimal parameters; step six: the film-tearing forceps clamp the wrinkled capsule membrane edge at the corresponding position, tear the diseased capsule membrane with appropriate force and ensure that the centripetal tearing force and the relative centrifugal force generated by the negative pressure attraction fixation are in the same straight line; step seven: changing the positions in sequence to complete the tearing off of the 360° wrinkled capsule membrane.

[0015] Beneficial effect: The present invention relates to a film tearing assembly for tearing off a wrinkled cyst membrane and a method of using the same. A negative pressure rod sleeve is provided to serve as a running track for the negative pressure rod, a suction plate and a negative pressure pipe are installed to facilitate the use of the negative pressure hole to adsorb the wrinkled cyst membrane, thereby fixing the wrinkled cyst membrane, a film tearing rod sleeve is installed to serve as a running track for an inner film tearing rod, the inner film tearing rod is used to facilitate the closing or opening of a clamp, and a clamp is provided to clamp the edge of the wrinkled cyst membrane, thereby facilitating the film tearing action. The invention has the characteristics of simple principle, being able to effectively improve the surgical efficiency of cyst bag wrinkling, reducing the risk of surgical complications, and facilitating the clamping of the wrinkled cyst membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural view of the negative pressure auxiliary rod of the present invention;

[0017] Figure 2 This is a structural view of the film-tearing tweezers of the present invention;

[0018] Figure 3 This is a structural view of the negative pressure auxiliary rod of the present invention when it is retracted;

[0019] Figure 4 This is a structural view of the film-tearing inner rod of the present invention;

[0020] Figure 5 It is a simplified structural diagram of the present invention when in operation;

[0021] Figure 6 is a full cross-sectional view of the first suction disk of the present invention;

[0022] Figure 7 is a bottom view of the first suction disk of the present invention;

[0023] Figure 8 is a full cross-sectional view of a second type of suction disk of the present invention;

[0024] Fig. 9 is a bottom view of a second suction disk of the present invention;

[0025] Fig.10 is a full cross-sectional view of a third type of suction disk of the present invention;

[0026] Fig.11 It is a bottom view of the third suction disk of the present invention.

[0027] Illustration: 1. Negative pressure auxiliary rod, 2. Film tearing tweezers, 3. Negative pressure rod sleeve, 4. Negative pressure rod, 5. Suction plate, 6. Negative pressure hole, 7. First reset plate, 8. Negative pressure pipeline, 9. Film tearing rod sleeve, 10. Film tearing inner rod, 11. Second reset plate, 12. Top plate structure, 13. Connector, 14. Protective cap, 15. Clamp, 16. Clamp branch, 17. Rod sleeve node, 18. Inner rod node, 19. Spring, 20. Bowl-shaped inner groove, 21. Double-layer buffer layer, 21. First center adsorption port, 22. First center adsorption port, 23. Second center adsorption port, 24. Storage groove, 25. Auxiliary adsorption surface, 26. Arc-shaped docking surface, 27. Auxiliary adsorption hole, 28. Conical channel, 29. Third center adsorption port, 30. Long strip gap, 31. Fan-shaped support sheet. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.

[0029] Embodiments of the present invention relate to a film tearing assembly for tearing off a wrinkled capsule membrane and a method of using the same, such as Figure 1 —4, it includes a negative pressure auxiliary rod 1 and a film tearing tweezers 2, the negative pressure auxiliary rod 1 includes a negative pressure rod sleeve 3, a negative pressure rod 4 and a suction plate 5, the negative pressure rod sleeve 3 is internally installed with an axially movable negative pressure rod 4, one end of the negative pressure rod 4 is installed with a suction plate 5, the other end of the negative pressure rod 4 is installed with a negative pressure pipe 8, the suction plate 5 is provided with a negative pressure hole 6, the middle part of the negative pressure rod 4 is provided with a negative pressure channel connecting the negative pressure hole 6 and the negative pressure pipe 8, the film tearing tweezers 2 include a film tearing rod sleeve 9, a film tearing inner rod 10 and a clamp 15, the film tearing rod sleeve 9 is in the shape of a tube sleeve, the film tearing inner rod 10 is axially movably installed in the film tearing rod sleeve 9, one end of the film tearing inner rod 10 is provided with two forked clamp branches 16, and the ends of the clamp branches 16 are both provided with clamps 15.

[0030] In the present technical scheme, a negative pressure rod sleeve 3 is provided to serve as a running track for the negative pressure rod 4, a suction plate 5 and a negative pressure pipe 8 are installed to facilitate the negative pressure hole 6 to adsorb the shrinkage cyst membrane, thereby playing a role in fixing the shrinkage cyst membrane, a film tearing rod sleeve 9 is installed to serve as a running track for the film tearing inner rod 10, the film tearing inner rod 10 is used to facilitate the closing or opening of the clamp 15, and the clamp 15 is provided to clamp the edge of the shrinkage cyst membrane, thereby facilitating the film tearing action.

[0031] As a supplement to the present technical solution, a rod sleeve node 17 is provided on one end of the negative pressure rod sleeve 3 close to the negative pressure pipe 8, an inner rod node 18 is provided on one end of the negative pressure rod 4 where the negative pressure pipe 8 is provided, and a spring 19 is sleeved on one end of the negative pressure rod 4 close to the inner rod node 18, and the two ends of the spring 19 are respectively against the rod sleeve node 17 and the inner rod node 18. In the present technical solution, the rod sleeve node 17 and the inner rod node 18 are provided to facilitate the limitation of the spring 19.

[0032] As a supplement to the present technical solution, a first reset plate 7 is installed between the rod sleeve node 17 and the inner rod node 18, and the first reset plate 7 is installed to limit the running distance between the rod sleeve node 17 and the inner rod node 18.

[0033] As a supplement to the present technical solution, a top plate structure 12 is provided on the other end of the film-tearing inner rod 10, and a connector 13 is provided on the end of the film-tearing rod sleeve 9 close to the top plate structure 12. A protective cap 14 corresponding to the top plate structure 12 is installed on the connector 13. The protective cap 14 is used to protect the top plate structure 12, and the top plate structure 12 is used to facilitate pushing the film-tearing inner rod 10.

[0034] As a supplement to the present technical solution, a second reset plate 11 is installed between the top plate structure 12 and the connector 13 . The second reset plate 11 is provided to facilitate limiting the moving distance of the top plate structure 12 .

[0035] As a supplement to the present technical solution, the outer extension of the suction plate 5 is made of silicone material, and when the negative pressure rod 4 is retracted, the suction plate 5 can be deformed and retracted into the negative pressure rod sleeve 3.

[0036] As a supplement to the present technical solution, the clamp 15 adopts a non-edge structure. When the film tearing inner rod 10 is retracted, the two clamps 15 and the clamp branches 16 are combined and retracted into the film tearing rod sleeve 9.

[0037] like Figure 5 As shown, a method for using a film-tearing assembly for tearing off a wrinkled capsule membrane comprises the following specific steps: step one: using lidocaine to perform surface anesthesia on the cornea and sclera; step two: making a 2-3mm corneal tunnel incision at the 11 o'clock position of the cornea and sclera; step three: making a 2-3mm measuring incision at the 2 o'clock position; step four: sending the negative pressure auxiliary rod 1 and the film-tearing forceps 2 forward; step five: when the negative pressure hole 6 of the negative pressure auxiliary rod 1 is attached to the capsule membrane at a specific position, the position should be about 2mm away from the edge of the fibrotic and wrinkled diseased capsule membrane, turn on the external negative pressure device and adjust it to the optimal parameters; step six: the film-tearing forceps 2 clamp the wrinkled capsule membrane edge at the corresponding position, tear the diseased capsule membrane with appropriate force and ensure that the centripetal tearing force and the relative centrifugal force generated by the negative pressure attraction fixation are in the same straight line; step seven: changing the positions in sequence to complete the tearing off of the 360° wrinkled capsule membrane.

[0038] like Figure 6 and Figure 7 As shown, the suction plate 5 is a first type of suction structure, a bowl-shaped inner groove 20 is provided in the middle of the lower end of the suction plate 5, a first central suction port 22 is provided in the middle of the bowl-shaped inner groove 20, a double-layer buffer layer 21 is provided in the inner circle of the first central suction port 22, and an interval cavity is provided between the double-layer buffer layers 21.

[0039] When the first suction disk 5 is working, the bowl-shaped inner groove 20 will fit the shrinkage cyst membrane, and then the shrinkage cyst membrane will receive negative pressure, and the first central suction port 22 will suck the shrinkage cyst membrane. In order to prevent the shrinkage cyst membrane from being subjected to excessive negative pressure, a double-layer buffer layer 21 is arranged at the lower end of the first central suction port 22. The double-layer buffer layer 21 is squeezed by the negative pressure, and the double-layer buffer layer 21 is deformed to support the shrinkage cyst membrane.

[0040] like Figure 8 and Fig. 9As shown, the suction plate 5 is a second type of suction structure, a receiving groove 24 is provided in the middle of the lower end of the suction plate 5, a second central suction port 23 is provided in the middle of the receiving groove 24, an outer circle of the second central suction port 23 is provided with a circle of arc-shaped docking surfaces 26, an auxiliary suction surface 25 is provided on the outer side of the arc-shaped docking surface 26, a plurality of auxiliary suction holes 27 are evenly provided on the auxiliary suction surface 25, and the upper ends of the auxiliary suction holes 27 are connected to the second central suction port 23.

[0041] The second type of suction disc 5 is provided with an arc-shaped docking surface 26 to match and fit with the wrinkled cyst membrane, and is provided with auxiliary adsorption holes 27 to facilitate secondary adsorption of the wrinkled cyst membrane, thereby improving the adsorption force between the suction disc 5 and the wrinkled cyst membrane.

[0042] like Fig.10 and Fig.11 As shown, the suction plate 5 is a third suction structure, a third central suction port 29 is arranged in the middle of the lower end surface of the suction plate 5, a conical channel 28 which is small at the top and large at the bottom is arranged inside the suction plate 5, a plurality of radially arranged long strips 30 are evenly arranged on the outside of the third central suction port 29, and fan-shaped support sheets 31 are formed between adjacent long strips 30.

[0043] When the third type of adsorption disk 5 is working, the shrinkage bladder membrane is subjected to adsorption force, and the shrinkage bladder membrane will squeeze the fan-shaped support sheet 31, and the fan-shaped support sheet 31 will be deformed, and the adsorption disk 5 supports and fixes the shrinkage bladder membrane.

Claims

1. A film tearing assembly for tearing off a wrinkled capsule membrane, characterized in that: The invention comprises a negative pressure auxiliary rod (1) and film tearing forceps (2), wherein the negative pressure auxiliary rod (1) comprises a negative pressure rod sleeve (3), a negative pressure rod (4) and a suction plate (5), wherein an axially movable negative pressure rod (4) is installed inside the negative pressure rod sleeve (3), the suction plate (5) is installed on one end of the negative pressure rod (4), a negative pressure pipe (8) is installed on the other end of the negative pressure rod (4), a negative pressure hole (6) is provided on the suction plate (5), and the negative pressure rod (4) is provided with a negative pressure hole (6). A negative pressure channel connecting the negative pressure hole (6) and the negative pressure pipeline (8) is provided in the middle part, and the film-tearing tweezers (2) include a film-tearing rod sleeve (9), a film-tearing inner rod (10) and a clamp (15). The film-tearing rod sleeve (9) is in the shape of a tube sleeve, and the film-tearing inner rod (10) is axially movably installed in the film-tearing rod sleeve (9). Two bifurcated clamp branches (16) are provided on one end of the film-tearing inner rod (10), and the clamps (15) are provided on the ends of the clamp branches (16).

2. A film tearing assembly for tearing off a wrinkled capsule membrane according to claim 1, characterized in that: A rod sleeve node (17) is arranged on one end of the negative pressure rod sleeve (3) close to the negative pressure pipe (8), an inner rod node (18) is arranged on one end of the negative pressure rod (4) close to the negative pressure pipe (8), a spring (19) is sleeved on one end of the negative pressure rod (4) close to the inner rod node (18), and two ends of the spring (19) are respectively against the rod sleeve node (17) and the inner rod node (18).

3. A film tearing assembly for tearing off a wrinkled capsule membrane according to claim 2, characterized in that: A first reset plate (7) is installed between the rod sleeve node (17) and the inner rod node (18).

4. A film tearing assembly for tearing off a wrinkled capsule membrane according to claim 1, characterized in that: A top plate structure (12) is arranged on the other end of the film tearing inner rod (10), a connecting body (13) is arranged on the end of the film tearing rod sleeve (9) close to the top plate structure (12), and a protective cap (14) corresponding to the top plate structure (12) is installed on the connecting body (13).

5. A film tearing assembly for tearing off a wrinkled capsule membrane according to claim 4, characterized in that: A second reset plate (11) is installed between the top plate structure (12) and the connector (13).

6. The film tearing assembly for tearing off a wrinkled capsule membrane according to claim 1, characterized in that: The outer extension of the suction plate (5) is made of silica gel material, and when the negative pressure rod (4) is retracted, the suction plate (5) can be deformed and retracted into the negative pressure rod sleeve (3).

7. The film tearing assembly for tearing off a wrinkled capsule membrane according to claim 1, characterized in that: The clamp (15) adopts a non-edge structure. When the film-tearing inner rod (10) is retracted, the two clamps (15) and the clamp branches (16) are combined and retracted into the film-tearing rod sleeve (9).

8. A method for using the film tearing assembly for tearing off a wrinkled capsule membrane as claimed in claims 1 to 7, characterized in that: The specific steps include: Step 1: Use lidocaine to perform topical anesthesia on the cornea and sclera; Step 2: Make a 2-3mm corneal tunnel incision at the 11 o'clock position of the corneal sclera; Step 3: Make a 2-3mm measuring incision at the 2 o'clock position; Step 4: Move the negative pressure auxiliary rod (1) and the film tearing forceps (2) forward; Step 5: When the negative pressure hole (6) of the negative pressure auxiliary rod (1) is attached to the capsule at a specific location, which should be about 2 mm away from the edge of the fibrotic and wrinkled lesion capsule, the external negative pressure device is turned on and adjusted to the optimal parameters; Step 6: The tearing forceps (2) clamp the wrinkled capsule membrane edge at the corresponding position, tear the diseased capsule membrane with appropriate force and ensure that the centripetal tearing force and the relative centrifugal force generated by the negative pressure suction fixation are in the same straight line; Step 7: Change positions in sequence to complete the 360° removal of the wrinkled capsule membrane.

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