Novel built-in adjustable eye speculum for ophthalmology department

Abstract

The utility model relates to a novel built-in adjustable eye speculum for ophthalmology, which belongs to the technical field of medical instruments and comprises a fixed support component and two eyelid opening arms, and the two eyelid opening arms are symmetrically and rotatably connected onto the fixed support component; adjusting assemblies are arranged between the fixed supporting assemblies and the eyelid opening arms so as to adjust the unfolding angle of the two eyelid opening arms. The adjusting assembly comprises a rotating part and an adjusting rod which can move relatively in the axial direction, a connecting base is arranged at the top of the rotating part and installed on the fixed supporting assembly, and the rotating part abuts against the lower bottom face of the connecting base; a connecting rod is rotationally connected between the adjusting rod and the eyelid opening arms, the axial connecting length of the rotating component and the adjusting rod is adjusted through the axial coincidence length of the rotating component and the adjusting rod, and the unfolding angle of the two eyelid opening arms is indirectly adjusted through the connecting rod. The problems that the position of the eye speculum moves and is damaged due to suture winding and touching are solved; meanwhile, a stable and comfortable eyelid opening function can be provided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a built-in adjusting type novel eye surgery lachrymal apparatus. BACKGROUND

[0002] In ophthalmic clinical diagnosis and treatment, the lachrymal apparatus is the core instrument for maintaining the opening of the palpebral fissure, and its structural rationality directly affects the stability of the surgical field and the comfort of the patient. The current mainstream lachrymal apparatus includes two types: one is a fixed lachrymal apparatus, which adopts a rigid frame structure, and although it is easy to operate, it has significant defects. Clinical observation shows that the fixed force exertion method easily leads to excessive pressure on the eyelid tissue, especially for patients with narrow palpebral fissure, which easily causes intraoperative pain and postoperative meibomian gland injury. The second is a knob adjusting type lachrymal apparatus, which realizes lachrymal amplitude adjustment through a threaded rod mechanism, but the technical contradiction exposed is that the adjusting knob is externally located above the main body of the instrument, which is in the visual blind area during microscopic operation, resulting in the risk of the operator accidentally touching the adjusting rod and causing damage to the eye tissue. In addition, the contact between the knob rod and the suture easily causes microscopic suture entanglement, which increases the operation time, and forcibly unwinding may cause damage to the corneal epithelial cells. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a built-in adjusting type novel eye surgery lachrymal apparatus, which eliminates external components by setting a built-in adjusting structure, avoids the problems of suture entanglement, touching and position movement and damage of the lachrymal apparatus; and at the same time, adjustable structure is arranged to ensure that a stable and comfortable lachrymal function can be provided to support the doctor to perform surgery or examination.

[0004] A built-in adjusting type novel eye surgery lachrymal apparatus, comprising a fixed support assembly and lachrymal arms, two lachrymal arms are symmetrically connected to the fixed support assembly; an adjusting assembly is arranged between the fixed support assembly and the lachrymal arms to adjust the opening angle of the two lachrymal arms.

[0005] The fixed support assembly comprises a fixed connecting ring, the fixed connecting ring has a stepped hole in the inside for mounting and fixing the adjusting assembly; the fixed connecting ring is fixed with a fixed support plate on both sides, two lachrymal arms are symmetrically connected to the fixed support plate, and are rotated towards or away from each other at the connecting position to adjust the opening angle.

[0006] Connecting holes one are formed at both ends of the fixed support plate to realize rotational connection with one end of the lachrymal arm.

[0007] The movable end of the lachrymal arm is a lachrymal ring, and the lachrymal ring is semicircular.

[0008] The plane where the lachrymal ring is located and the plane where the rod body of the lachrymal arm is located have an included angle of 20-40°, so that the lachrymal arm forms a structure with the tip slightly raised.

[0009] The adjusting assembly comprises a rotating part and an adjusting rod capable of axial relative movement, the top of the rotating part is provided with a connecting seat, the connecting seat is installed on the fixed support assembly, and the rotating part abuts against the lower bottom surface of the connecting seat; the adjusting rod is rotatably connected with a connecting rod between the two lidding arms, the connecting length of the rotating part and the adjusting rod in the axial direction is adjusted, and the opening angle of the two lidding arms is indirectly adjusted through the connecting rod.

[0010] The rotating part and the adjusting rod are screw-connected.

[0011] The inner surface of the rotating part is provided with an internal thread, and the outer surface of the adjusting rod is correspondingly provided with an external thread matched with the internal thread.

[0012] When the screw-connection length of the rotating part and the adjusting rod increases, the two lidding arms rotate away from each other, and the opening angle increases; when the screw-connection length of the rotating part and the adjusting rod decreases, the two lidding arms move towards each other, and the opening angle decreases.

[0013] The lower part of the adjusting rod is provided with a connecting hole two, and the middle part of the lidding arm is provided with a connecting hole three, so as to realize the rotary connection with the connecting rod.

[0014] The beneficial effects of the utility model are:

[0015] The utility model ensures the adjustability of the lidding device, integrates the adjusting part in the main part of the whole device, realizes function optimization through the built-in adjusting structure, eliminates the external protruding part while retaining the lidding amplitude adjusting function, avoids the troubles caused by the existence of the adjusting assembly, and causes the operation damage caused by accidental scratching, the displacement of instruments caused by accidental touch, reduces the influence of the lidding device on the operation, and significantly improves the operation safety.

[0016] The utility model can meet the needs of comfortable and slow adjustment of lidding size, can avoid the operation difficulties caused by the lidding size, and can avoid the operation damage caused by accidental scratching, the displacement of instruments caused by accidental touch, can make the operation field open, can reduce the influence of the lidding device on the operation, and can significantly improve the operation safety.

[0017] The utility model has simple overall structure, can complete lidding adjustment with one hand, reduces the operation steps and time consumption, has remarkable practical effect, has simple and smooth operation process, is developed on the basis of clinical needs, and has strong practicality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a front view of the built-in adjusting type novel lidding device for ophthalmology;

[0019] Figure 2The utility model provides a built-in adjusting type novel ophthalmic eye speculum's fixed support subassembly's schematic diagram is provided;

[0020] Figure 3 The utility model provides a built-in adjusting type novel ophthalmic eye speculum's fixed support subassembly's plan view is provided;

[0021] Figure 4 The utility model provides a built-in adjusting type novel ophthalmic eye speculum's adjusting subassembly's schematic diagram is provided;

[0022] Figure 5 The utility model provides a built-in adjusting type novel ophthalmic eye speculum's eye opening arm's schematic diagram is provided;

[0023] Among them,

[0024] 1-fixed support subassembly, 11-fixed connecting ring, 12-fixed support plate, 13-connection hole one, 2-adjusting subassembly, 21-connection seat, 22-rotary part, 23-rotary part inner thread, 24-adjusting rod outer thread, 25-adjusting rod, 26-connection hole two, 3-connection rod, 4-eye opening arm, 41-connection hole three, 42-eye opening ring. DETAILED DESCRIPTION

[0025] In order to better explain the utility model, so as to facilitate understanding, the following combining with the specific embodiment, the technical scheme and effect of the utility model are described in detail.

[0026] Combining Figures 1-4 As shown in the figure, a built-in adjusting type novel ophthalmic eye speculum includes fixed support subassembly and eye opening arm 4, two the eye opening arm 4 is symmetrically connected on the fixed support subassembly 1, the fixed support subassembly 1 and eye opening arm 4 between setting adjusting subassembly 2, for adjusting the opening angle of two eye opening arms 4.

[0027] The utility model provides a built-in adjusting type novel ophthalmic eye speculum in this embodiment, including fixed support subassembly 1, the fixed support effect of fixed support subassembly 1 is used to the whole device.The fixed support subassembly 1 is symmetrically connected with two eye opening arms 4, is used to spread in the operation, to push away the upper and lower eyelid, facilitate operation.The fixed support subassembly 1 and the eye opening arm 4 between setting adjusting subassembly 2, to adjust the opening angle of two the eye opening arm 4 before operation.

[0028] The fixed support assembly 1 comprises a fixed connecting ring 11 for adjusting the mounting and fixing of the adjusting assembly 2. The fixed connecting ring 11 is fixed with fixed support plates 12 on both sides, and the fixed support plates 12 are provided with connecting holes one 13 at both ends for realizing the rotary connection with one end of the eye opening arm 4. The two eye opening arms 4 are symmetrically connected to the fixed support plates 12, and the two eye opening arms 4 are rotated towards or away from each other around the connection with the fixed support plates 12 to change the opening angle of the eye opening arms 4, so as to adjust the appropriate angle to make the eye opening angle suitable for the operation.

[0029] In the embodiment, the fixed support assembly 1 comprises a fixed connecting ring 11, and the fixed connecting ring 11 is internally provided with a stepped hole. The adjusting assembly 2 is clamped on the stepped hole to realize the connection and fixing of the adjusting assembly 2. The fixed connecting ring 11 is fixed with fixed support plates 12 on both sides, and the fixed support plates 12 are symmetrically provided with connecting holes one 13 at both ends. One end of the eye opening arm 4 is connected to the fixed support plate 12 through the connecting hole one 13. The two eye opening arms 4 are symmetrically arranged, and the opening angle is smaller when they are rotated towards each other, and the opening angle is larger when they are rotated away from each other, so as to make the eye opening angle suitable for the operation.

[0030] The movable end of the eye opening arm 4 is an eye opening ring 42, and the eye opening ring 42 is a circular arc. The plane where the eye opening ring 42 is located and the plane where the rod body of the eye opening arm 4 is located have an included angle of 20-40°, so that the eye opening arm 4 forms a slightly tilted structure. This slightly tilted rod structure can reduce the contact area between the eye opening device and the eyelid and increase the comfort.

[0031] In the embodiment, one end of the eye opening arm 4 is a rotary connection end connected to the fixed support plate 12, and the other end is a movable end for prying open the eyelid. The movable end of the eye opening arm 4 is an eye opening ring 42, as shown in Figure 5 The movable end of the eye opening arm 4 is an eye opening ring 42, and the eye opening ring 42 is a circular arc. The plane where the eye opening ring 42 is located and the plane where the rod body of the eye opening arm 4 is located have an included angle of 20-40°, so that the eye opening arm 4 forms a slightly tilted structure. This slightly tilted rod structure can reduce the contact area between the eye opening device and the eyelid and increase the comfort.

[0032] The adjusting assembly 2 comprises a rotary part 22 and an adjusting rod 25 connected by threads. The rotary part 22 is provided with a connecting seat 21 at the top, and the connecting seat 21 is arranged in the stepped hole in the fixed connecting ring 11. The rotary part 22 abuts against the lower bottom surface of the connecting seat 21. The adjusting rod 25 is rotatably connected with the connecting rod 3 between the eye opening arms 4. The connection length of the rotary part 22 and the adjusting rod 25 in the axial direction is adjusted through the threaded connection, so as to indirectly adjust the opening angle of the two eye opening arms 4 through the connecting rod 3.

[0033] In this embodiment, the adjusting assembly 2 comprises a connecting seat 21 installed in the stepped hole in the fixed connecting ring 11; the adjusting assembly 2 further comprises a rotating part 22 and an adjusting rod 25 which are threadedly connected with each other, the inner surface of the rotating part 22 is provided with a rotating part inner thread 23, and the outer surface of the adjusting rod 25 is correspondingly provided with an adjusting rod outer thread 24, so as to realize the thread connection of the rotating part 22 and the adjusting rod 25. The top of the rotating part 22 abuts against the lower surface of the connecting seat 21, and the lower part is threadedly connected with the adjusting rod 25. The lower part of the adjusting rod 25 is rotationally connected with the connecting rod 3 at the middle part of the lid opening arm 4. The lower part of the adjusting rod 25 is provided with a connecting hole two 26, and the middle part of the lid opening arm 4 is provided with a connecting hole three 41, which are used to realize the rotational connection with the connecting rod 3. When the rotating part 22 is rotated and the rotating part 22 moves downward along the adjusting rod 25, that is, the length of the thread connection of the rotating part 22 and the adjusting rod 25 increases, the connecting seat 21 abutting against the top thereof drives the fixed support assembly 1 to move downward, so as to reduce the distance between the fixed support assembly 1 and one end of the adjusting rod 25, thereby rotating the connecting rod 3 around the connecting position of the connecting rod 3 and the adjusting rod 25 through the connecting rod 3, rotating the two lid opening arms 4 away from each other, and increasing the unfolding angle. Conversely, when the length of the thread connection of the rotating part 22 and the adjusting rod 25 decreases, the two lid opening arms 4 move towards each other, and the unfolding angle decreases. This structure not only ensures the adjustable function of the eyelid speculum, but also avoids the accidental injury caused by the entanglement of the suture and the accidental touch.

[0034] The use method of the above-mentioned built-in adjusting type novel ophthalmic eyelid speculum is as follows:

[0035] Before use, the operation preparation is performed according to the conventional method until the eyelid speculum is used. The following steps are performed:

[0036] Step 1. Place the eyelid speculum, and expose the operation range thereof through the adjusting assembly 2: gently pull the eyelids apart, place the lid opening rings 42 between the conjunctiva and the bulbar conjunctiva of the upper and lower eyelids respectively, at this time, rotate the rotating part 22 counterclockwise, and through the thread connection of the rotating part inner thread 23 and the adjusting rod outer thread 24, move the rotating part 22 downward, at the same time, drive the fixed support assembly 1 to move downward due to the limiting effect of the fixed connecting ring on the connecting seat, drive the adjusting rod 25 to move downward and the lid opening arms 4 on both sides to unfold outward due to the rotational connection of the connecting rod 3. The lid opening rings 42 push the upper and lower eyelids apart, rotate the rotating part 22 until the exposed range is moderate, and stop rotating to start the operation. When rotating the rotating part 22, gently hold the fixed support plate 12.

[0037] Step 2. Take down the speculum: After the operation is completed, rotate the rotating part 22 clockwise, and through the threaded connection between the inner thread 23 of the rotating part and the outer thread 24 of the adjusting rod, the adjusting rod 25 is moved upward, and the two lateral speculum arms 4 are inwardly retracted, that is, the speculum can be taken down. When rotating the rotating part 22, the fixed support plate 12 is lightly supported.

Claims

1. A novel adjustable built-in ophthalmic speculum, characterized in that: The utility model relates to a kind of eyelid opening arms, including fixed support component and open eyelid arm (4), two described open eyelid arm (4) symmetry rotation connection in described fixed support component (1);Adjusting component (2) is provided between the fixed support component (1) and open eyelid arm (4), to adjust the opening angle of two open eyelid arm (4).

2. A novel adjustable built-in ophthalmic speculum according to claim 1, wherein: The fixed support component (1) includes a fixed connection ring (11) with a stepped hole inside for mounting and fixing the adjusting component (2); the fixed connection ring (11) is fixed with a fixed support plate (12) on both sides, and two open eyelid arms (4) are symmetrically connected to the fixed support plate (12) and rotate around the connection between them and the fixed support plate (12) to adjust the opening angle.

3. A novel adjustable built-in ophthalmic speculum according to claim 2, wherein: The fixed support plate (12) is provided with a connecting hole (13) at both ends for rotationally connecting with one end of the open eyelid arm (4).

4. The novel adjustable ophthalmic in-built speculum according to claim 1, wherein: The movable end of the open eyelid arm (4) is an open eyelid ring (42), which is semicircular.

5. A novel adjustable built-in ophthalmic speculum according to claim 4, wherein: The plane of the open eyelid ring (42) and the plane of the rod of the open eyelid arm (4) form an angle of 20-40°, so that the open eyelid arm (4) forms a structure with the tip slightly raised.

6. A novel adjustable built-in ophthalmic speculum according to claim 1, wherein: The adjusting component (2) includes a rotating part (22) and an adjusting rod (25) that can move axially relative to each other; the top of the rotating part (22) is provided with a connecting seat (21) mounted on the fixed support component, and the rotating part (22) abuts against the lower bottom surface of the connecting seat (21); the adjusting rod (25) is rotationally connected with the open eyelid arm (4) through a connecting rod (3), and the connecting length of the rotating part (22) and the adjusting rod (25) in the axial direction is adjusted through the coinciding length in the axial direction, and the opening angle of the two open eyelid arms (4) is indirectly adjusted through the connecting rod (3).

7. A novel adjustable built-in ophthalmic speculum according to claim 6, wherein: The rotating part (22) and the adjusting rod (25) are screw-connected.

8. A novel adjustable built-in ophthalmic speculum according to claim 7, wherein: The inner surface of the rotating part (22) is provided with internal threads, and the outer surface of the adjusting rod (25) is correspondingly provided with external threads matched with the internal threads.

9. A novel adjustable built-in ophthalmic speculum according to claim 8, wherein: When the screw connection length of the rotating part (22) and the adjusting rod (25) increases, the two open eyelid arms (4) rotate away from each other, and the opening angle increases; when the screw connection length of the rotating part (22) and the adjusting rod (25) decreases, the two open eyelid arms (4) move towards each other, and the opening angle decreases.

10. The novel adjustable ophthalmic in-built speculum according to claim 6, wherein: The lower part of the adjusting rod (25) is provided with a connecting hole (26), and the middle part of the open eyelid arm (4) is provided with a connecting hole (41) for rotationally connecting with the connecting rod (3).

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