Fixator for infusion tube of vitrectomy system capable of effectively preventing infusion tube from loosening and falling off

Abstract

The utility model relates to an infusion tube fixing device for a vitrectomy system, which can effectively prevent an infusion tube from loosening and falling off, and adopts the technical scheme that arc-shaped clamping plates are arranged at two ends in a fixing device body, and then the inner sides of the two clamping plates are connected to the outer side wall of the infusion tube through non-slip mats in an attached manner; the friction force between the fixator body and the infusion tube can be increased through the two anti-skid pads; the two ends of the interior of the fixator body are provided with grooves in a penetrating and sliding mode, then transmission gears are connected to the outer sides of the two pressing rods in a meshed mode through racks, and moving rods connected to the outer sides of the two transmission gears in a meshed mode through the racks can be driven to contract and move while the two pressing rods are pressed to contract and move; and at the moment, the two clamping plates can be driven to be separated from the infusion tube, so that the infusion tube can be quickly disassembled, assembled and separated, and infusion tubes with different diameters can be conveniently clamped and positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a perfusion tube fixer for a vitrectomy surgical system, which can effectively prevent the perfusion tube from loosening and falling off. Background Art

[0002] Vitrectomy is a high-level modern microscopic ophthalmological surgery used to treat vitreoretinal diseases. The basic function of vitrectomy is to remove the cloudy vitreous or vitreoretinal traction, restore the transparent refractive medium and promote retinal reattachment, treat vitreoretinal diseases and restore the patient's visual function. During vitrectomy, an infusion tube is required to continuously infuse fluid into the eye to maintain a clear surgical field of view and moisturize the surgical area. While the infusion tube is infusing fluid, a fixator is required to limit and fix the injection position.

[0003] In the "A Vitrectomy Surgery System Irrigation Tube Fixer" with the patent CN211244048U, it includes a main support plate, which is a disc-shaped structure. The center position of the bottom surface of the main support plate is vertically fixedly connected to a middle connecting rod, the bottom of the middle connecting rod is fixedly connected to a bottom clamp, the top of the main support plate is connected to a connecting structure, and the top of the connecting structure is fixedly connected to a top support plate. The utility model connects a U-shaped splint to the top support plate, and the top support plate is connected to the bottom clamp through the main support plate and the middle connecting rod. When the perfusion tube fixator is in use, the bottom clamp can be fixedly clamped on the eyelid opener, and the perfusion tube can be clamped on the inner side of the U-shaped splint to fix the perfusion tube, avoiding the traditional method of fixing the perfusion tube with tape, ensuring that there is no displacement between the perfusion tube and the sleeve, and greatly meeting the use needs of medical personnel;

[0004] When the perfusion tube holder is used for injection, the perfusion tube is directly clamped into the inner side of the U-shaped splint to clamp and position the perfusion tube. However, the upper side of the U-shaped splint is open and can only clamp and limit one side of the perfusion tube. When the perfusion tube is dragged and pulled, the perfusion tube will loosen and fall off, which is inconvenient for subsequent vitrectomy surgery. Utility Model Content

[0005] The purpose of the present utility model is to overcome the above-mentioned problems of the prior art and to provide a vitrectomy surgical system perfusion tube holder with a reasonable and simple structure, which is easy to use and effectively prevents the perfusion tube from loosening and falling off, so as to solve the problem raised in the above-mentioned background technology that when the perfusion tube holder on the market is injecting liquid, the perfusion tube is directly clamped on the inner side of the U-shaped splint, thereby clamping and positioning the position of the perfusion tube, but the upper part of the U-shaped splint is open and can only clamp and limit one side of the perfusion tube. When the perfusion tube is dragged and pulled, the perfusion tube will loosen and fall off, which is inconvenient for subsequent vitrectomy surgery.

[0006] The utility model provides the following technical solutions: a perfusion tube holder for a vitrectomy surgical system that effectively prevents the perfusion tube from loosening and falling off, comprising a mounting seat, the mounting seat comprising an upper mounting seat and a lower mounting seat, the upper mounting seat being located above the lower mounting seat, the upper mounting seat and the lower mounting seat both being provided with two mounting grooves, and the mounting grooves on the upper mounting seat facing the mounting grooves on the lower mounting seat; bolt holes being provided on both sides of the upper mounting seat and both sides of the lower mounting seat; bolts being further provided, the bolts being screwed into the bolt holes of the upper mounting seat and the bolt holes of the lower mounting seat, and the mounting seat being fixed to the eyelid speculum for positioning through the mounting grooves of the upper mounting seat and the lower mounting seat;

[0007] It also includes: a sleeve is installed on the upper screw of the mounting seat (specifically, a sleeve is installed on the upper screw of the upper mounting seat), and a support rod is slidably installed through the internal slot of the sleeve, and the upper part of the support rod extends to the upper outside of the sleeve, and at the same time, the upper screw of the support rod is connected to the fixer body, and the internal slot of the fixer body is provided with a clamping mechanism, which can use the clamping mechanism to drive the two splints to clamp and position the position of the perfusion tube after penetration through the meshing action, so as to avoid the perfusion tube from loosening and falling off due to dragging in the later stage.

[0008] Preferably, the clamping mechanism includes a moving rod, wherein the two moving rods are both slidably installed at the inner two ends of the fixer body, and the inner ends of the two moving rods are connected to splints by screws, and the two splints are both arc-shaped, and the inner sides of the two splints are clamped and connected to the perfusion tube. The clamping mechanism also includes an anti-slip pad, wherein the two anti-slip pads are both fitted on the inner walls of the two splints, and the inner sides of the two anti-slip pads are fitted and connected to the outer walls of the perfusion tube. The two anti-slip pads can be used to increase the friction between the fixer body and the perfusion tube, thereby preventing the perfusion tube from loosening and falling off due to dragging in the later stage.

[0009] Preferably, both ends of the interior of the fixer body are grooved and penetrated by pressing rods that are slidably installed, and the two pressing rods are symmetrically arranged about the vertical center line of the fixer body, and the outer sides of the two pressing rods are connected to the transmission gears through rack meshing, and the outer sides of the two transmission gears are connected to the moving rod through rack meshing, and the interiors of the two transmission gears are grooved with torsion springs, and the two torsion springs have the same structure, and the outer ends of the two torsion springs are connected to the inner wall of the fixer body, and the positions of the two transmission gears after rotation can be elastically reset by the elastic force of the two torsion springs themselves, thereby driving the two splints to clamp and position the perfusion tube.

[0010] Preferably, the front side slot of the sleeve passes through a slidingly installed limit rod, and the inner end of the limit rod passes through the sleeve and extends into the limit slot, and a row of limit slots are all opened on the front side of the support rod, and at the same time, a row of limit slots are all opened at equal intervals. A tension spring is wrapped around the outer side of the limit rod, and the outer side of the tension spring is connected to the inner wall of the sleeve. The position of the limit rod after pulling can be elastically reset by the elastic force of the tension spring itself, and then the support rod after height adjustment can be limited and fixed.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] (1) Arc-shaped splints are provided at both ends of the interior of the fixator body, and then the inner sides of the two splints are connected to the outer wall of the irrigation tube through anti-skid pads. The two anti-skid pads can increase the friction between the fixator body and the irrigation tube, thereby preventing the irrigation tube from loosening and falling off due to dragging during the later surgical operation, thereby reducing the risk of vitrectomy surgery;

[0013] (2) A pressing rod is installed by sliding through the grooves at both ends of the interior of the fixator body, and a transmission gear is connected to the outside of the two pressing rods through a rack meshing. When the two pressing rods are pressed to retract and move, the moving rod connected to the rack meshing on the outside of the two transmission gears can be driven to retract and move. At this time, the two splints can be driven to separate from the perfusion tube, which not only allows for quick disassembly and separation of the perfusion tube, but also facilitates the clamping and positioning of perfusion tubes of different diameters, saving time and effort.

[0014] (3) By slotting the two transmission gears with torsion springs, and then connecting the outer ends of the two torsion springs to the inner walls of the holder body, the positions of the two transmission gears after rotation can be elastically reset by the elastic force of the two torsion springs themselves, thereby quickly positioning and clamping the perfusion tube;

[0015] (4) A support rod is installed by sliding through the internal slot of the sleeve, and then the fixator body is screwed on the upper part of the support rod. When the height position of the fixator body needs to be adjusted later, the limit rod is pulled to move the position. At this time, the limit rod and the limit slot are aligned, and then the support rod is pulled to slide inside the sleeve, so that the height position of the fixator body can be adjusted, which is more convenient for surgical treatment of different groups of people;

[0016] (5) By winding a tension spring around the outside of the limit rod and then connecting the outside of the tension spring to the inner wall of the sleeve, the limit rod can be elastically reset by the elastic force of the tension spring itself after being pulled, so that the limit rod can be automatically popped out to the limit groove. At this time, the position of the support rod after movement can be limited and fixed, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of the fastener body of the utility model;

[0019] Figure 3 for Figure 2 A in the middle is an enlarged structural diagram;

[0020] Figure 4 This is a schematic diagram of the top-sectional structure of the sleeve and the support rod in the utility model;

[0021] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the sleeve and the support rod in the utility model;

[0022] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the fastener body and the splint in the present invention.

[0023] In the figure: 1. Mounting seat; 1-1. Upper mounting seat; 1-2. Lower mounting seat; 2. Mounting slot; 3. Bolt; 4. Sleeve; 5. Support rod; 6. Fixer body; 7. Moving rod; 8. Clamp; 9. Anti-slip pad; 10. Pressing rod; 11. Transmission gear; 12. Torsion spring; 13. Limiting rod; 14. Limiting slot; 15. Tension spring. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings and their descriptions. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] This utility provides the following technical solutions: Example 1

[0026] In order to solve the problem that the existing perfusion tube becomes loose and falls off due to dragging during vitrectomy surgery, the following is disclosed:

[0027] The mounting base 1 includes an upper mounting base 1-1 and a lower mounting base 1-2. The upper mounting base 1-1 is located above the lower mounting base 1-2. Two mounting grooves 2 are provided on the upper mounting base 1-1 and the lower mounting base 1-2, and the mounting groove 2 on the upper mounting base 1-1 faces the mounting groove 2 of the lower mounting base 1-2; bolt holes are provided on both sides of the upper mounting base 1-1 and both sides of the lower mounting base 1-2; bolts 3 are also provided, and the bolts 3 are screwed into the bolt holes of the upper mounting base 1-1 and the bolt holes of the lower mounting base 1-1, so that the mounting groove 2 of the upper mounting base 1-1 and the mounting groove 2 of the lower mounting base 1-2 are close to or away from each other. The mounting base 1 can be fixed to the eyelid opener for positioning through the mounting grooves 2 of the upper mounting base 1-1 and the lower mounting base 1-2;

[0028] It also includes: a sleeve 4 is installed on the upper screw of the mounting seat 1, specifically: the sleeve 4 is installed on the upper screw of the upper mounting seat 1-1, and the internal slot of the sleeve 4 is penetrated and a support rod 5 is slidably installed, and the upper part of the support rod 5 extends to the upper outside of the sleeve 4, and at the same time, the upper screw of the support rod 5 is connected to the fixer body 6, and the internal slot of the fixer body 6 is provided with a clamping mechanism, which can use the clamping mechanism to drive the two splints 8 to clamp and position the position of the perfusion tube after penetration through the meshing action, so as to avoid the perfusion tube from loosening and falling off due to dragging in the later stage.

[0029] The clamping mechanism includes a moving rod 7, wherein the two moving rods 7 are both slidably installed at the two ends of the interior of the fixer body 6, and the inner ends of the two moving rods 7 are connected to the splints 8 by screws, and the two splints 8 are both arc-shaped, and the inner sides of the two splints 8 are clamped and connected to the perfusion tube. The clamping mechanism also includes an anti-slip pad 9, wherein the two anti-slip pads 9 are both fitted on the inner walls of the two splints 8, and the inner sides of the two anti-slip pads 9 are fitted and connected to the outer walls of the perfusion tube.

[0030] like Figure 1-Figure 2 As shown, during vitrectomy surgery, the perfusion tube is pulled to slide through the interior of the fixture body 6. At this time, the splints 8 provided at both ends of the interior of the fixture body 6 will position and clamp the perfusion tube through the anti-slip pads 9. The two anti-slip pads 9 can increase the friction between the fixture body 6 and the perfusion tube, thereby preventing the perfusion tube from loosening and falling off due to dragging in the later stage, thereby reducing the risk of vitrectomy surgery. Example 2

[0031] Different from the first embodiment, the length of the perfusion tube can be adjusted when the fixator body 6 is in use, which discloses:

[0032] Both ends of the interior of the fixer body 6 are grooved and penetrated by a pressing rod 10 that is slidably installed, and the two pressing rods 10 are symmetrically arranged about the vertical center line of the fixer body 6, and the outer sides of the two pressing rods 10 are connected to the transmission gear 11 through rack engagement, and the outer sides of the two transmission gears 11 are connected to the moving rod 7 through rack engagement, and the interiors of the two transmission gears 11 are grooved with a torsion spring 12, and the two torsion springs 12 have the same structure, and the outer ends of the two torsion springs 12 are connected to the inner wall of the fixer body 6.

[0033] like Figures 1-6 As shown, when the use length of the perfusion tube needs to be adjusted, the two pressing rods 10 are pressed to drive the two transmission gears 11 to rotate simultaneously through the rack, and then the two transmission gears 11 will simultaneously drive the two splints 8 connected to the inner ends of the moving rods 7 to shrink and move through the rack, and then the two splints 8 can be separated from the perfusion tube, which not only adjusts the use length of the perfusion tube, but also clamps and positions perfusion tubes of different diameters. Then, the two pressing rods 10 are released, and the two torsion springs 12 will elastically reset the two rotated transmission gears 11 through their own elastic force, thereby driving the two splints 8 to position and clamp the perfusion tube, which saves time and effort. Example 3

[0034] Different from the second embodiment, the height of the fixing body 6 can also be adjusted.

[0035] The front side slot of the sleeve 4 passes through the sliding installation of the limit rod 13, and the inner end of the limit rod 13 passes through the sleeve 4 and extends into the limit groove 14, and a row of limit grooves 14 are all opened on the front side of the support rod 5, and at the same time, a row of limit grooves 14 are all opened at equal intervals. The outer side of the limit rod 13 is wrapped with a tension spring 15, and the outer side of the tension spring 15 is connected to the inner wall of the sleeve 4.

[0036] like Figure 1-Figure 5 As shown, when the height position of the fixer body 6 needs to be adjusted, the limit rod 13 is pulled to retract and move, and the limit rod 13 can be separated from the limit groove 14. Then the support rod 5 can be pulled to slide through the inside of the sleeve 4. When it is adjusted to a suitable angle, the tension spring 15 will automatically pop the support rod 5 into the inside of the limit groove 14 through its own elastic force. At this time, the position of the rear support rod 5 can be moved for limit fixing.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A vitrectomy system perfusion tube holder that effectively prevents the perfusion tube from loosening and falling off, characterized by: The invention comprises a mounting seat (1), wherein the mounting seat (1) comprises an upper mounting seat (1-1) and a lower mounting seat (1-2), wherein the upper mounting seat (1-1) is located above the lower mounting seat (1-2), and two mounting grooves (2) are provided on the upper mounting seat (1-1) and the lower mounting seat (1-2), and the mounting grooves (2) on the upper mounting seat (1-1) face the mounting grooves (2) of the lower mounting seat (1-2); bolt holes are provided on both sides of the upper mounting seat (1-1) and both sides of the lower mounting seat (1-2); and bolts (3) are further provided, wherein the bolts (3) are screwed into the bolt holes of the upper mounting seat (1-1) and the bolt holes of the lower mounting seat (1-2), so that the mounting grooves (2) of the upper mounting seat (1-1) and the mounting grooves (2) of the lower mounting seat (1-2) are moved closer to or farther away from each other, and the mounting seat (1) can be fixed to the eyelid opener for positioning through the mounting grooves (2) of the upper mounting seat (1-1) and the lower mounting seat (1-2); The invention also includes: a sleeve (4) is screwed on the upper side of the upper mounting seat (1-1), and a support rod (5) is slidably installed through the internal slot of the sleeve (4), and the upper side of the support rod (5) extends to the upper outer side of the sleeve (4), and the upper screw of the support rod (5) is connected to the fixer body (6), and the internal slot of the fixer body (6) is provided with a clamping mechanism, which can be used to drive two clamping plates (8) to clamp and position the position of the perfusion tube after the perfusion tube is penetrated through the clamping mechanism through meshing action, so as to prevent the perfusion tube from loosening and falling off due to dragging in the later stage.

2. The vitrectomy system irrigation tube holder according to claim 1, which effectively prevents the irrigation tube from loosening and falling off, is characterized by: The clamping mechanism comprises a moving rod (7), wherein the two moving rods (7) are both slidably mounted on the inner ends of the fixer body (6), and the inner ends of the two moving rods (7) are connected to a clamping plate (8) by screws, and the two clamping plates (8) are both in an arc shape, and the inner sides of the two clamping plates (8) are clamped and connected to the perfusion tube.

3. The vitrectomy system irrigation tube holder according to claim 2, which effectively prevents the irrigation tube from loosening and falling off, is characterized by: The clamping mechanism further includes an anti-skid pad (9), wherein the two anti-skid pads (9) are both fitted on the inner side walls of the two splints (8), and the inner sides of the two anti-skid pads (9) are fitted and connected to the outer side walls of the perfusion tube. The two anti-skid pads (9) can be used to increase the friction between the fixator body (6) and the perfusion tube, thereby preventing the perfusion tube from loosening and falling off due to dragging in the later stage.

4. A vitrectomy system irrigation tube holder that effectively prevents the irrigation tube from loosening and falling off according to claim 2 or 3, characterized in that: Both ends of the interior of the fixer body (6) are slotted through which a pressing rod (10) is slidably installed, and the two pressing rods (10) are symmetrically arranged about the vertical center line of the fixer body (6), and the outer sides of the two pressing rods (10) are connected to the transmission gear (11) through rack meshing, and the outer sides of the two transmission gears (11) are connected to the moving rod (7) through rack meshing, and the interiors of the two transmission gears (11) are slotted with a torsion spring (12), and the two torsion springs (12) have the same structure, and the outer ends of the two torsion springs (12) are connected to the inner wall of the fixer body (6), and the positions of the two transmission gears (11) after rotation can be elastically reset by the elastic force of the two torsion springs (12), thereby driving the two clamps (8) to clamp and position the perfusion tube.

5. The vitrectomy system irrigation tube holder according to claim 1, which effectively prevents the irrigation tube from loosening and falling off, is characterized by: The front side slot of the sleeve (4) passes through a slidingly mounted limit rod (13), and the inner end of the limit rod (13) passes through the sleeve (4) and extends into the limit groove (14), and a row of limit grooves (14) are all opened on the front side of the support rod (5), and at the same time, a row of limit grooves (14) are all opened at equal intervals; the outer side of the limit rod (13) is wound and connected with a tension spring (15), and the outer side of the tension spring (15) is connected to the inner wall of the sleeve (4), and the position of the limit rod (13) after being pulled can be elastically reset by the elastic force of the tension spring (15) itself, and then the support rod (5) after height adjustment can be limited and fixed.

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