Manual adjustable elastic eyelid dilator

Abstract

The utility model relates to the technical field of medical instruments, in particular to an elastic manual adjustable eyelid dilator which comprises a supporting part, a movable strip and a tooth part. The moving strip is connected with the supporting part in a sliding and inserting manner; the lead screw is connected with the moving strip through threaded rotation, and a first rotary knob is fixedly arranged at the front end of the lead screw. The rotating shaft is rotationally inserted and mounted above the moving strip on the supporting part; the gear and the ratchet wheel are fixedly mounted on the rotating shaft, and the gear is meshed with the tooth part; the second knob is fixedly arranged at the front end of the rotating shaft; the clamping strip is slidably mounted above the ratchet wheel in the supporting part, and the lower end of the clamping strip is clamped with the ratchet wheel; the spring is mounted above the clamping strip; by improving the manual adjustable elastic eyelid dilator, the eyelid dilator has the advantages that the adjusting speed is high, the operation time is shortened, and the pain of a patient is reduced, so that the problems and defects in the prior art and equipment are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field more specifically, especially, relates to a kind of elastic hand-operated adjustable retractor of eyelid. BACKGROUND

[0002] Eyelid is commonly known as eyelid, is located in front of eyeball, constitutes the barrier of protecting eyeball.Eyelid is divided into upper eyelid and lower eyelid, usually needs to be expanded eyelid to facilitate operation when carrying out eye operation, and lid opener is a kind of appliance for opening patient's eyelid to facilitate operation when carrying out eye operation, is favorable to expand operation visual field, and lid opener is equivalent to drag hook in ophthalmic surgery, in ophthalmic surgery, play the role of supporting eyelid, and it is very widely used.

[0003] The existing hand-operated adjustable retractor is generally adjusted to the opening angle of retractor by screw rod, and the opening and closing of retractor need to rotate screw rod for many turns, so that the operation time is long, and the pain of patient is increased.

[0004] Therefore, the existing problems are researched and improved, and the elastic hand-operated adjustable retractor of eyelid is provided, so that the problems are solved and the practical value is improved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an elastic hand-operated adjustable retractor of eyelid to solve the problems and deficiencies in the background.

[0006] To achieve the above object, the utility model provides an elastic hand-operated adjustable retractor of eyelid, which is achieved by the following specific technical means:

[0007] The utility model provides an eyelid elasticity hand -operated adjustable dilator, include: support, moving strip, tooth part, screw rod, first knob, hinged piece, dilator arm, hook part, pull rod, pivot, gear, ratchet wheel, second knob, clamping strip, spring, push screw, support front side, support rear side, moving strip is rectangular strip structure, and the upper surface of moving strip is provided with tooth part, moving strip and support slide and insert joint, screw rod is connected with moving strip through thread rotation, and the front end of screw rod is fixedly provided with first knob, hinged piece rotationally installs in the tail end of screw rod, dilator arm is hingedly provided with two places in the both ends of support, and the end of dilator arm is equipped with hook part, the both ends of pull rod are respectively hingedly connected with hinged piece, dilator arm, pivot rotationally inserts and inserts the upper side of moving strip on support, gear, ratchet wheel are respectively fixedly installed on pivot, and gear engages with tooth part, second knob is fixedly set up in the front end of pivot, clamping strip is slidably installed in the upper side of ratchet wheel in support, and the lower end of clamping strip is clamped with ratchet wheel, the spring is installed in the upper side of clamping strip, and the both ends of spring are respectively with clamping strip and support butt joint, push screw is connected with clamping strip through support with thread, support is composed of support front side, support rear side.

[0008] As further optimization of the technical solution, the support front side and the support rear side are rectangular plate structures, recesses for mounting the moving strip, the gear, the ratchet wheel, and the clamping strip are formed on the support front side and the support rear side, and a through slot for the push screw is formed on the support front side.

[0009] As further optimization of the technical solution, the clamping strip is a rectangular plate structure with an angled lower end, and the angled lower end faces the side of the dilator arm.

[0010] As further optimization of the technical solution, the angle of the teeth on the ratchet wheel matches the angle of the end of the clamping strip.

[0011] Due to the use of the above technical solution, the utility model has the following advantages compared with the prior art:

[0012] 1. The moving strip is a rectangular strip structure, the upper surface of the moving strip is provided with a tooth part, the moving strip is slidably connected with the support, the screw rod is connected with the moving strip through thread rotation, the front end of the screw rod is fixedly provided with a first knob, the gear and the ratchet wheel are fixedly installed on the pivot, and the gear engages with the tooth part. By twisting the second knob, the pivot drives the gear to rotate, the moving strip moves, the dilator arm is quickly opened, the operation time is saved, and the opening angle of the dilator arm can be finely adjusted by rotating the first knob, which is practical.

[0013] 2, the utility model discloses the card strip is slid and is installed in the upper portion of the ratchet wheel of support part, and the lower end of card strip is connected with ratchet wheel, spring is installed in the upper portion of card strip, and the both ends of spring are respectively with the abutment of card strip and support part, push screw is connected through the setting of support part and card strip, through moving push screw, card strip moves up to the elastic force of spring, and the lower end of card strip is separated from ratchet wheel, and moving strip can move, realize the quick closing of the arm of opening, reduce operation time, reduce the pain of patient.

[0014] 3, the utility model discloses the improvement of eyelid elasticity hand -operated adjustable type dilator, has the advantages of fast adjustment speed, reduces operation time, reduces the pain of patient, thereby effectively solve the problems and the insufficient of prior art and equipment. DRAWINGS

[0015] The drawings constituting a part of this application are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and its explanation are used to explain the utility model, and do not constitute undue limitation to the utility model. In the drawings:

[0016] Fig. 1 It is the overall structure schematic diagram of the utility model;

[0017] Fig. 2 It is the partial section structure schematic diagram of the utility model;

[0018] Fig. 3 It is the explosion structure schematic diagram of the utility model;

[0019] Fig. 4 It is the explosion structure schematic diagram of the utility model.

[0020] In the drawing: support part 1, moving strip 2, tooth part 3, screw rod 4, first knob 5, hinged member 6, arm of opening 7, hook part 8, pull rod 9, rotating shaft 10, gear 11, ratchet wheel 12, second knob 13, card strip 14, spring 15, push screw 16, support part front side 101, support part rear side 102. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.

[0022] Please see Figs. 1 to 4 The utility model provides a kind of specific technical implementation scheme of eyelid elasticity hand -operated adjustable type dilator:

[0023] A manually adjustable elastic eyelid retractor includes: a support part 1, a movable bar 2, a toothed part 3, a lead screw 4, a first knob 5, a hinge 6, a retractor arm 7, a hook 8, a pull rod 9, a rotating shaft 10, a gear 11, a ratchet 12, a second knob 13, a locking strip 14, a spring 15, a push screw 16, a front side 101 of the support part, and a rear side 102 of the support part; the movable bar 2 has a rectangular strip structure, and the upper surface of the movable bar 2 has a toothed part 3; the movable bar 2 is slidably connected to the support part 1; the lead screw 4 is connected to the movable bar 2 by threaded rotation, and the front end of the lead screw 4 is fixedly provided with the first knob 5; the hinge 6 is rotatably installed at the end of the lead screw 4; the retractor arm provides support. The arm 7 is hinged at both ends of the support part 1, and the end of the arm 7 is provided with a hook part 8; the two ends of the pull rod 9 are respectively hinged to the hinge part 6 and the arm 7; the rotating shaft 10 is rotatably inserted and installed above the moving bar 2 on the support part 1; the gear 11 and ratchet 12 are respectively fixedly installed on the rotating shaft 10, and the gear 11 meshes with the tooth part 3; the second knob 13 is fixedly installed at the front end of the rotating shaft 10; by turning the second knob 13, the rotating shaft 10 drives the gear 11 to rotate, and the moving bar 2 moves, so as to realize the rapid opening of the arm 7, saving operation time. The opening angle of the arm 7 can be finely adjusted by rotating the first knob 5, which is practical.

[0024] The locking strip 14 is slidably mounted above the ratchet 12 inside the support part 1, and the lower end of the locking strip 14 is engaged with the ratchet 12; the locking strip 14 is a rectangular plate structure with an angled lower end, and the angled surface faces the side of the spreading arm 7; the angle of the upper teeth of the ratchet 12 matches the angle of the end of the locking strip 14; the spring 15 is mounted above the locking strip 14, and the two ends of the spring 15 abut against the locking strip 14 and the support part 1 respectively, and the spring 15 keeps the end of the locking strip 14 engaged with the ratchet 12; the push screw 16 passes through the support part 1 and is threadedly connected to the locking strip 14; by moving the push screw 16, the locking strip 14 is engaged. The elastic force of the spring 15 moves upward, the lower end of the locking bar 14 separates from the ratchet 12, and the moving bar 2 can move, realizing the rapid closing of the spreading arm 7, reducing operation time and reducing patient pain; the support part 1 is composed of a front support part 101 and a rear support part 102; the front support part 101 and the rear support part 102 are rectangular plate structures, and the front support part 101 and the rear support part 102 are provided with grooves for installing the moving bar 2, gear 11, ratchet 12 and locking bar 14, and the front support part 101 is provided with a through groove for the push screw 16 to pass through.

[0025] Specific implementation steps:

[0026] In use, hook 8 onto the patient's upper and lower eyelids respectively, rotate the second knob 13, the rotating shaft 10 drives the gear 11 to rotate, the moving bar 2 moves to the side of the spreading arm 7, the spreading arm 7 opens, opening the patient's eyelids. By rotating the first knob 5, the lead screw 4 moves axially, and the opening angle of the spreading arm 7 is finely adjusted. After use, push the push screw 16 upward, the locking bar 14 moves upward against the elastic force of the spring 15, the lower end of the locking bar 14 separates from the ratchet 12, the gear 11 can rotate, the moving bar 2 can move, pinch the spreading arm 7 to close it, and the device can be removed.

[0027] In summary, this manually adjustable elastic eyelid expander features a rectangular moving strip with teeth on its surface. The moving strip is slidably connected to the support unit. A lead screw is threaded and connected to the moving strip, with a first knob fixedly mounted at its front end. Gears and ratchet are fixedly mounted on a rotating shaft, with the gears meshing with the teeth. Turning the second knob rotates the shaft, causing the gears to rotate and the moving strip to move, thus quickly opening the expander arm and saving operation time. The opening angle of the expander arm can be finely adjusted by rotating the first knob, making it highly practical. A ratchet is slidably mounted inside the support unit. Above the eyelid elastic manually adjustable retractor, the lower end of the retaining bar engages with the ratchet. A spring is installed above the retaining bar, with both ends of the spring abutting against the retaining bar and the support part, respectively. A push screw passes through the support part and is threadedly connected to the retaining bar. By moving the push screw, the retaining bar overcomes the spring force and moves upward, separating the lower end of the retaining bar from the ratchet. The moving bar can then move, achieving rapid closure of the retractor arm, reducing operation time and patient discomfort. This utility model, through improvements to the eyelid elastic manually adjustable retractor, has the advantages of fast adjustment speed, reduced operation time, and reduced patient discomfort, thus effectively solving the problems and shortcomings of existing technologies and equipment.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elastic, manually adjustable eyelid retractor, comprising: Support (1), moving bar (2), toothed part (3), lead screw (4), first knob (5), hinge (6), spreading arm (7), hook (8), pull rod (9), rotating shaft (10), gear (11), ratchet (12), second knob (13), locking bar (14), spring (15), push screw (16), front side of support (101), rear side of support (102); characterized in that: the moving bar (2) is a rectangular bar structure, and the moving bar (2) is provided with a toothed part (3) on its upper surface; the moving bar (2) is slidably connected to the support (1); the lead screw (4) is connected to the moving bar (2) by threaded rotation, and the front end of the lead screw (4) is fixedly provided with a first knob (5); the hinge (6) is rotatably installed at the end of the lead screw (4); the spreading arm (7) is hinged at both ends of the support (1) in two places, and the end of the spreading arm (7) is provided with Hook (8); the two ends of the pull rod (9) are respectively hinged to the hinge (6) and the spreading arm (7); the rotating shaft (10) is rotatably inserted and installed above the moving bar (2) on the support part (1); the gear (11) and ratchet (12) are respectively fixedly installed on the rotating shaft (10), and the gear (11) meshes with the tooth part (3); the second knob (13) is fixedly set at the front end of the rotating shaft (10); the locking strip (14) is slidably installed. The ratchet (12) is installed above the support (1), and the lower end of the locking bar (14) is engaged with the ratchet (12); the spring (15) is installed above the locking bar (14), and the two ends of the spring (15) abut against the locking bar (14) and the support (1) respectively; the push screw (16) passes through the support (1) and is threadedly connected to the locking bar (14); the support (1) is composed of the front side (101) and the rear side (102) of the support.

2. The manually adjustable elastic eyelid stretcher according to claim 1, characterized in that: The front side (101) and rear side (102) of the support part are rectangular plate structures, and grooves for installing the moving bar (2), gear (11), ratchet (12) and locking bar (14) are provided on the front side (101) and rear side (102) of the support part, and a through groove for passing through the push screw (16) is provided on the front side (101) of the support part.

3. The manually adjustable elastic eyelid stretcher according to claim 1, characterized in that: The card strip (14) is a rectangular plate structure with an angled cut at the lower end, and the angled cut surface faces the side of the support arm (7).

4. The manually adjustable elastic eyelid stretcher according to claim 1, characterized in that: The angle of the upper teeth of the ratchet (12) matches the angle of the end of the clip (14).

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