An ophthalmic surgical irrigation device

Abstract

The application discloses an ophthalmic surgery flushing device and relates to the technical field of ophthalmic medical instruments.The ophthalmic surgery flushing device comprises a sleeve, a water inlet hose is fixed to one side of the sleeve, a water outlet head is fixed to the end of the sleeve, the water outlet head is in the shape of a shower head, a water outlet pipe and a needle pipe are arranged in the water outlet head, the needle pipe is arranged in the water outlet pipe, the needle pipe is in the shape of an elongated rod, the diameter of the water outlet pipe is larger than that of the needle pipe, and the water outlet pipe and the needle pipe can be extended to the outside of the water outlet head.The ophthalmic surgery flushing device has the beneficial effects that the quick switching of three flushing heads, i.e., a water column straight flushing head, a needle type fine flushing head and a shower type full coverage flushing head, can be realized in the use process, the flushing mode switching is completed in a closed flow channel, the sterile passage is not exposed and interrupted, the sterile barrier damage caused by the dismounting and replacement of the flushing head is avoided from the root, and the risk of postoperative infection such as endophthalmitis is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of ophthalmic medical device technology, and in particular to an ophthalmic surgical irrigation device. Background Technology

[0002] In the entire process of ophthalmic microsurgery, intraoperative irrigation is a core step in maintaining intraocular morphology, ensuring a clear surgical field, removing tissue debris and viscoelastic agents, and reducing the risk of infection. Different surgical stages have different rigid requirements for irrigation modes. In the current routine clinical protocol, three independent irrigation heads need to be configured to adapt to different surgical scenarios: first, a water jet direct irrigation head, used for routine and safe intraoperative irrigation to avoid damaging fragile intraocular tissues; second, a needle-type fine irrigation head, used for precise irrigation of narrow areas such as capsular bag dead corners and anterior chamber angles; and third, a shower-type full-coverage irrigation head, used for preoperative conjunctival sac pre-irrigation and postoperative large-scale terminal irrigation of the entire ocular surface.

[0003] Existing ophthalmic surgical irrigation devices require frequent disassembly and replacement of three independent irrigation heads: direct-flush, needle-type fine, and shower-type full-coverage, depending on the irrigation needs of different stages of surgery. This operation is cumbersome, with each disassembly, connection, and venting taking tens of seconds, requiring a complete interruption of the surgical procedure. This severely disrupts the continuity of microsurgical operations and prolongs the operation time. Furthermore, the disassembly process requires disconnecting the tubing connectors, exposing the sterile flow channel directly to the environment, irreversibly damaging the sterile barrier, significantly increasing the risk of blinding complications such as endophthalmitis, and also easily causing residual air bubbles in the tubing, waste of consumables, and occupational exposure to needlestick injuries. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing ophthalmic surgical irrigation devices, the present invention is proposed.

[0006] Therefore, the problem that this invention aims to solve is that frequent replacement of different rinsing heads is cumbersome and exposes the sterile flow channel directly to the environment, thus damaging the sterile barrier.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an ophthalmic surgical irrigation device, comprising a sleeve, wherein a water inlet hose is fixed to one side of the sleeve, characterized in that: it further comprises a water outlet head fixed to the end of the sleeve, the water outlet head being in the shape of a shower head, wherein a water outlet pipe and a needle pipe are disposed inside the water outlet head, the needle pipe being located inside the water outlet pipe, the needle pipe being slender, the diameter of the water outlet pipe being larger than that of the needle pipe, and both the water outlet pipe and the needle pipe extending to the outside of the water outlet head.

[0008] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a rotating sleeve is provided on the outer side of the water outlet pipe, a first spiral groove is provided on the water outlet pipe, a first fixed shaft is fixed on the rotating sleeve, the first fixed shaft slides in the first spiral groove, a sliding groove is provided on the water outlet pipe, and a slider is fixed on the inner side of the water outlet head, the slider slides in the sliding groove.

[0009] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a sealing cover is fixed inside the sleeve, and one end of the water outlet pipe is inserted into the sealing cover, wherein the sealing cover is used to block the water inlet end of the water outlet pipe.

[0010] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a rotating sleeve is provided on the outer side of the needle tube, the rotating sleeve is rotatably connected to one side of the sealing cover, a second fixed shaft is fixed on the rotating sleeve, a second spiral groove is provided on the needle tube, the second fixed shaft slides in the second spiral groove, a stabilizing frame is fixed in the water outlet pipe, a slot is provided on the needle tube, a locking block is fixed in the stabilizing frame, and the locking block slides in the slot.

[0011] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a sealing cover is fixed inside the sleeve, and one end of the needle tube is inserted into the sealing cover, the sealing cover being used to seal the water inlet end of the needle tube.

[0012] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a fixing plate is fixed to one side of the water outlet, and a baffle is rotatably connected to one side of the fixing plate. Both the fixing plate and the baffle are provided with water inlet holes. When the baffle rotates, it can block the water inlet holes on the fixing plate.

[0013] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a fixing post is fixed to both the rotating sleeve and the top of the rotating sleeve, a knob is sleeved on the outside of the sleeve, a connecting rod is fixed to the inside of the knob, a squeezing post is fixed to the bottom of the connecting rod, and the squeezing post is located between the two fixing posts.

[0014] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, both ends of the squeezing column are fixed with sleeves, the sleeves are snapped onto the outside of the fixed column, and the fixed column is semi-circular and elastic.

[0015] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, an elastic rod is fixed to one side of the knob, a limiting ball is fixed to the bottom end of the elastic rod, a limiting hole is opened on the sleeve, and the limiting ball engages with the limiting hole.

[0016] In a preferred embodiment of the ophthalmic surgical irrigation device of the present invention, a valve is provided on the sleeve.

[0017] The beneficial effects of this invention are as follows: During use, it can quickly switch between three irrigation heads: direct water jet, needle-type fine irrigation, and shower-type full coverage irrigation, without the need for disassembly, plugging and unplugging, or replacement of tubing. The entire irrigation mode switching process is completed within a closed flow channel, ensuring that the sterile passage is not exposed or interrupted. This fundamentally avoids the disruption of the sterile barrier caused by replacing irrigation heads, significantly reducing the risk of postoperative infections such as endophthalmitis. The switching operation can be completed quickly with one hand without interrupting the microsurgical process, effectively shortening the operation time and improving the continuity and efficiency of the operation.

[0018] Meanwhile, it eliminates the tedious steps of repeated disassembly and venting, preventing air bubbles from entering the tubing and reducing the risk of air bubbles damaging delicate tissues such as the corneal endothelium and iris. Furthermore, the integrated structure reduces the use of consumables with multiple sizes of irrigation heads, lowering medical costs. It also avoids needlestick injuries to medical staff caused by sharp needles during disassembly and replacement, improving intraoperative safety and better meeting the clinical needs of ophthalmic microsurgery for precision, sterility, and efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of an ophthalmic surgical irrigation device.

[0021] Figure 2 This is a cross-sectional view of the ophthalmic surgical irrigation device.

[0022] Figure 3 Ophthalmic surgical irrigation device Figure 2 Enlarged view of the structure at point A in the middle.

[0023] Figure 4 Ophthalmic surgical irrigation device Figure 2 Enlarged view of the structure at point B in the middle.

[0024] Figure 5 This is a cross-sectional structural diagram of the cannula of an ophthalmic surgical irrigation device.

[0025] Figure 6 Ophthalmic surgical irrigation device Figure 5 Enlarged view of the structure at point C.

[0026] Figure 7 This is a structural diagram of the water outlet pipe and needle tube of an ophthalmic surgical irrigation device.

[0027] Figure 8 Ophthalmic surgical irrigation device Figure 7 Enlarged view of the structure at point D. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, referring to Figures 1-3 This is the first embodiment of the present invention. This embodiment provides an ophthalmic surgical irrigation device. The ophthalmic surgical irrigation device includes a sleeve 1. The inside of the sleeve 1 is hollow and used to transport irrigation fluid. The outside is provided with anti-slip texture to facilitate the user's grip. A water inlet hose 2 is fixed on one side of the sleeve 1. The water inlet hose 2 is used to transport external irrigation fluid into the inside of the sleeve 1.

[0032] It also includes a water outlet head 3 fixed to the end of the cannula 1. The water outlet head 3 is shower-shaped and can cover a wide area for irrigation. It is suitable for preoperative conjunctival sac pre-irrigation and postoperative large-area terminal irrigation of the entire ocular surface. The water outlet head 3 is equipped with an outlet tube 4 and a needle tube 5. The needle tube 5 is located inside the outlet tube 4. The outlet tube 4 is a water jet-shaped direct-flow irrigation head for routine and safe irrigation during surgery to avoid damage to fragile intraocular tissues. The needle tube 5 is long and thin and is a needle-type fine irrigation head for precise irrigation of narrow areas such as capsular bag dead corners and anterior chamber angle. The diameter of the outlet tube 4 is larger than that of the needle tube 5. Both the outlet tube 4 and the needle tube 5 can extend to the outside of the water outlet head 3. Different irrigation heads can be switched according to different irrigation needs.

[0033] Example 2, refer to Figures 3-7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] Specifically, a rotating sleeve 41 is fitted on the outside of the water outlet tube 4, and a first spiral groove 4-1 is opened on the water outlet tube 4. A first fixed shaft 42 is fixed on the rotating sleeve 41. The first fixed shaft 42 slides in the first spiral groove 4-1. When the rotating sleeve 41 rotates, it will drive the first fixed shaft 42 to slide in the first spiral groove 4-1. Through the cooperation of the two, the water outlet tube 4 is driven to move outward, and the water outlet end extends to the outside of the water outlet head 3. At this time, the irrigation fluid will only be discharged outward through the water outlet tube 4, which can be used for routine and safe irrigation during surgery to avoid damage to the fragile tissues inside the eye.

[0035] A groove 4-2 is provided on the water outlet pipe 4, and a slider 43 is fixed inside the water outlet head 3. The slider 43 slides in the groove 4-2. The two work together to limit the water outlet pipe 4 and prevent the water outlet pipe 4 from rotating when it moves.

[0036] A sealing cover 44 is fixed inside the sleeve 1. One end of the water outlet pipe 4 is inserted into the sealing cover 44. The sealing cover 44 is used to block the water inlet of the water outlet pipe 4 to prevent the flushing liquid from entering the water outlet pipe 4 and being discharged through the water outlet pipe 4 when using the other two flushing heads, thereby affecting the normal use of the other two flushing heads.

[0037] When the outlet pipe 4 moves outward, it will separate from the sealing cover 44, allowing the flushing fluid to enter the interior of the outlet pipe 4.

[0038] A rotating sleeve 51 is fitted on the outside of the needle tube 5. The rotating sleeve 51 is rotatably connected to one side of the sealing cover 44. A second fixed shaft 52 is fixed on the rotating sleeve 51. A second spiral groove 5-1 is opened on the needle tube 5. The second fixed shaft 52 slides in the second spiral groove 5-1. When the rotating sleeve 51 rotates, it will drive the second spiral groove 5-1 to slide in the second fixed shaft 52. Through the cooperation of the two, the needle tube 5 is moved, so that the water outlet end of the needle tube 5 moves to the outside of the water outlet pipe 4, thereby extending the service length of the needle tube 5 and enabling the needle tube 5 to be finely rinsed during the rinsing process.

[0039] A stabilizing frame 53 is fixed inside the water outlet pipe 4. The stabilizing frame 53 is used to support and position the needle tube 5. A slot 5-2 is opened on the needle tube 5. A locking block 54 is fixed inside the stabilizing frame 53. The locking block 54 slides in the slot 5-2. The two work together to limit the needle tube 5 and prevent the needle tube 5 from rotating when it moves.

[0040] A sealing cover 55 is fixed inside the sleeve 1. One end of the needle tube 5 is inserted into the sealing cover 55. The sealing cover 55 is used to block the water inlet end of the needle tube 5 to prevent the flushing fluid from entering the needle tube 5 and being discharged through the needle tube 5 when using the other two flushing heads, thereby affecting the normal use of the other two flushing heads.

[0041] A fixing plate 31 is fixed to one side of the water outlet head 3, and a baffle 32 is rotatably connected to one side of the fixing plate 31. Both the fixing plate 31 and the baffle 32 are provided with water inlet holes 3-1. There are multiple water inlet holes 3-1, which are evenly distributed in a ring on the fixing plate 31 and the baffle 32. The flushing liquid enters the interior of the water outlet head 3 through the water inlet holes 3-1, and can then be discharged outward through the water outlet head 3. When the baffle 32 rotates, it can block the water inlet holes 3-1 on the fixing plate 31. When using the other two flushing heads, the baffle 32 will block the water inlet holes 3-1 to prevent the flushing liquid from entering the interior of the water outlet head 3, which would affect the normal use of the other two flushing heads.

[0042] Example 3, referring to Figures 6-8 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0043] Specifically, both the rotating sleeve 41 and the rotating sleeve 51 are fixed with a fixed post 6 at their top. A knob 7 is fitted on the outside of the sleeve 1. A connecting rod 8 is fixed on the inside of the knob 7. An arc-shaped groove is opened on the sleeve 1. The connecting rod 8 is movably connected to the arc-shaped groove. A pressing post 9 is fixed at the bottom of the connecting rod 8. The pressing post 9 is located between the two fixed posts 6.

[0044] When the knob 7 is turned in both directions, the connecting rod 8 will drive the extrusion column 9 to move, and the extrusion column 9 will drive the fixed column 6 to rotate, so that the two fixed columns 6 can drive the rotating sleeve 41 and the rotating sleeve 51 to rotate respectively.

[0045] Both ends of the extrusion column 9 are fixed with sleeves 10. The sleeves 10 are snapped onto the outside of the fixed column 6. The fixed column 6 is semi-circular and elastic. The two sleeves 10 correspond to the two fixed columns 6 respectively. The extrusion column 9 is connected to the fixed column 6 through the sleeves 10. When the extrusion column 9 rotates in the opposite direction away from the fixed column 6, it can drive the fixed column 6 to reset. When the fixed column 6 cannot rotate, the sleeves 10 will separate from the fixed column 6. At this time, it will not hinder the rotation of the extrusion column 9.

[0046] A spring rod 71 is fixed on one side of the knob 7. A limit ball 72 is fixed at the bottom of the spring rod 71. A limit hole 1-1 is opened on the sleeve 1. There are three limit holes 1-1, which are evenly distributed in an arc shape on the top of the sleeve 1. The limit ball 72 engages with the limit hole 1-1. The two work together to sense and lock the rotation angle of the knob 7.

[0047] A valve 11 is provided on the casing 1, which is used to control the opening and closing of the flushing fluid inside the casing 1.

[0048] When in use, during preoperative rinsing of the conjunctival sac, valve 11 is opened. At this time, the rinsing fluid enters the interior of the outlet head 3 through the inlet hole 3-1 and is discharged outward through the outlet head 3. The outlet head 3 sprays out the rinsing fluid over a wide area and pre-rinses the conjunctival sac.

[0049] When the water jet-shaped direct flushing head is needed, turning the knob 7 moves the connecting rod 8 and the squeezing column 9, and the squeezing column 9 drives the fixing column 6 to rotate. The fixing column 6 drives the rotating sleeve 41 to rotate. When the rotating sleeve 41 rotates, it drives the first fixing shaft 42 to slide in the first spiral groove 4-1. Through the cooperation of the two, the water outlet tube 4 moves outward, and the water outlet end extends to the outside of the water outlet head 3. At this time, the flushing fluid will only be discharged outward through the water outlet tube 4, which can be used for routine and safe flushing during surgery to avoid damage to the fragile tissues inside the eye.

[0050] When a needle-type fine irrigation head is needed, rotate knob 7 in the opposite direction. This rotation, via connecting rod 8 and squeezing column 9, drives fixed column 6 to rotate. The rotation of fixed column 6 drives rotating sleeve 51. When rotating sleeve 51 rotates, it drives second spiral groove 5-1 to slide within second fixed shaft 52. Through the cooperation of these two, the needle tube 5 moves, moving the water outlet end of needle tube 5 to the outside of water outlet pipe 4. This extends the usable length of needle tube 5, allowing for fine irrigation during the irrigation process. This enables quick switching between three irrigation heads: direct water jet, needle-type fine irrigation, and shower-type full coverage irrigation, without the need for disassembly, insertion / removal, or replacement of tubing. The entire irrigation mode switching process is completed within a closed flow channel, ensuring that the sterile passage is not exposed or interrupted. This fundamentally avoids the disruption of the sterile barrier caused by replacing irrigation heads, significantly reducing the risk of postoperative infections such as endophthalmitis. The switching operation can be completed quickly with one hand without interrupting the microsurgical procedure, effectively shortening the operation time and improving surgical continuity and operational efficiency.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An ophthalmic surgical irrigation device, comprising a sleeve (1), wherein a water inlet hose (2) is fixed to one side of the sleeve (1), characterized in that: It also includes a water outlet (3) fixed to the end of the sleeve (1). The water outlet (3) is in the shape of a shower head. The water outlet (3) is provided with a water outlet pipe (4) and a needle tube (5) inside the water outlet pipe (4). The needle tube (5) is located inside the water outlet pipe (4). The needle tube (5) is long and thin. The diameter of the water outlet pipe (4) is larger than that of the needle tube (5). Both the water outlet pipe (4) and the needle tube (5) can extend to the outside of the water outlet (3). A rotating sleeve (41) is fitted on the outside of the water outlet pipe (4). A first spiral groove (4-1) is opened on the water outlet pipe (4). A first fixed shaft (42) is fixed on the rotating sleeve (41). The first fixed shaft (42) slides in the first spiral groove (4-1). A sliding groove (4-2) is opened on the water outlet pipe (4). A slider (43) is fixed on the inside of the water outlet head (3). The slider (43) slides in the sliding groove (4-2). A sealing cover (44) is fixed inside the sleeve (1), and one end of the water outlet pipe (4) is inserted into the sealing cover (44). The sealing cover (44) is used to block the water inlet end of the water outlet pipe (4). A rotating sleeve (51) is fitted on the outside of the needle tube (5). The rotating sleeve (51) is rotatably connected to one side of the sealing cover (44). A second fixed shaft (52) is fixed on the rotating sleeve (51). A second spiral groove (5-1) is opened on the needle tube (5). The second fixed shaft (52) slides in the second spiral groove (5-1). A stabilizing frame (53) is fixed in the water outlet pipe (4). A slot (5-2) is opened on the needle tube (5). A locking block (54) is fixed in the stabilizing frame (53). The locking block (54) slides in the slot (5-2).

2. The ophthalmic surgical irrigation device as described in claim 1, characterized in that: A sealing cover (55) is fixed inside the sleeve (1). One end of the needle tube (5) is inserted into the sealing cover (55). The sealing cover (55) is used to seal the water inlet end of the needle tube (5).

3. The ophthalmic surgical irrigation device as described in claim 2, characterized in that: A fixing plate (31) is fixed on one side of the water outlet (3), and a baffle (32) is rotatably connected on one side of the fixing plate (31). Both the fixing plate (31) and the baffle (32) are provided with water inlet holes (3-1). When the baffle (32) rotates, it can block the water inlet holes (3-1) on the fixing plate (31).

4. The ophthalmic surgical irrigation device as described in claim 3, characterized in that: The top of both the rotating sleeve (41) and the rotating sleeve (51) are fixed with a fixing post (6). A knob (7) is fitted on the outside of the sleeve (1). A connecting rod (8) is fixed on the inside of the knob (7). A pressing post (9) is fixed at the bottom of the connecting rod (8). The pressing post (9) is located between the two fixing posts (6).

5. The ophthalmic surgical irrigation device as described in claim 4, characterized in that: Both ends of the extrusion column (9) are fixed with sleeves (10), which are snapped onto the outside of the fixed column (6). The fixed column (6) is semi-circular and elastic.

6. The ophthalmic surgical irrigation device as described in claim 5, characterized in that: An elastic rod (71) is fixed on one side of the knob (7), and a limiting ball (72) is fixed at the bottom of the elastic rod (71). A limiting hole (1-1) is opened on the sleeve (1), and the limiting ball (72) engages with the limiting hole (1-1).

7. The ophthalmic surgical irrigation device as described in claim 6, characterized in that: A valve (11) is provided on the sleeve (1).

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