CN219049121U

CN219049121U - Rectus muscle threading hook

Info

Publication number: CN219049121U
Application number: CN202320139564.8U
Authority: CN
Inventors: 郭雷; 魏智媛; 陶军; 郭子奇
Original assignee: Shenyang Xingqi Ophthalmic Hospital Co ltd
Current assignee: Shenyang Xingqi Ophthalmic Hospital Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-05-23
Anticipated expiration: 2033-02-07

Abstract

The utility model provides a rectus muscle threading hook belongs to ophthalmic surgery auxiliary instrument technical field, concretely relates to rectus muscle threading hook, including integrative straight shank and the arc hook of holding, the arc hook inboard is provided with the hook groove, and all corners of rectus muscle threading hook inside and outside are blunt or smooth. The utility model has simple structure, is more suitable for the ophthalmic surgery with small visual field and small operation space, all corners are designed to be round or smooth, the damage of sharp parts to eye tissues of a patient is avoided, the angle design of the arc-shaped hook is convenient to slide from the lower part of rectus eye muscles, the threading is more convenient due to the design of the hooking groove, the hooking groove is less prone to falling off, and the efficiency and the safety coefficient of the surgery are improved.

Description

Rectus muscle threading hook

Technical Field

The utility model belongs to the technical field of auxiliary medical instruments for ophthalmic surgery, and particularly relates to a rectus muscle threading hook.

Background

Common ophthalmic surgery such as strabismus surgery, posterior scleral reinforcement surgery, scleral buckle surgery, etc. requires surrounding sutures under the extraocular muscles, and the surgical field is exposed by pulling the sutures to facilitate the surgery. The ophthalmic operation has the characteristics of small visual field, small operation space, improper operation, easy occurrence of unnecessary side injury, excessive involvement, easy occurrence of ocular and cardiac reflection and life threatening. At present, a sharp needle is more commonly used as an instrument in ophthalmic work, unnecessary damage is easily caused to eye tissues in the operation process, and if the diameter of the instrument is larger, the eye heart reflection is easily caused by careless operation, so that the requirement on an operator is higher; if the threading instrument is a closed round hole, the threading difficulty is high and the operation efficiency is low after the position of the threading instrument is fixed.

Prior art related to the utility model-one: the needle holder is associated with a needled suture, see fig. 1.

The specific technical scheme adopted is as follows: the needle holder enters from one side of the eye muscle through the lower part of the eye muscle and the sclera clearance, penetrates out from the opposite side of the eye muscle, separates and clamps the needlepoint part of the suture with the needle (the needle point is prevented from scratching the sclera and the muscle), and the needle holder clamps and retreats to enable the needle thread to pass through the lower part of the eye muscle, so that the needle thread is separated and the thread is reserved.

The prior art has the following defects: when threading, a passive needle holder and a sharp metal needle are used together, and the metal needle is easy to cause local side injury through the gap between muscle and sclera; the volume is large, and the use is inconvenient; the local injury to eyes is large, and excessive involvement of muscles is caused.

The second prior art related to the present utility model: tape Kong Xieshi hooks, see fig. 2.

The specific technical scheme adopted is as follows: enters from one side of the eye muscle through the gap between the lower part of the eye muscle and the sclera, passes out from the opposite side of the eye muscle, penetrates the wire into the round hole at the top end of the strabismus hook, retreats to enable the wire to pass through the lower part of the eye muscle, and withdraws the strabismus hook wire for use.

The second prior art has the following defects: when the strabismus hook is transmitted from the eye muscle and the sclera gap, the position is relatively fixed, and the operation range is small, the operation difficulty is large and the clinical practical use is difficult when the strabismus hook is accurately threaded into the round hole.

Technical problems existing in the prior art:

1. the needle holder is too large to be unfolded, and the muscle is easy to be involved, so that the operation is difficult;

2. the needle point is easy to damage eye tissues;

3. the instrument threading hole is too small to be practically operated.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the rectus threading hook which is convenient for hooking lines, has round or smooth all corners, can effectively improve the operation efficiency and the safety coefficient and is more suitable for ophthalmic operation.

In order to achieve the above purpose, the utility model adopts the following technical scheme that the device comprises an integral holding straight handle and an arc-shaped hook, wherein the angle formed by a chord corresponding to the arc of the arc-shaped hook and the holding straight handle is 80-120 degrees, a wire hooking groove is arranged on the inner side of the arc-shaped hook, the wire hooking groove comprises a wire inlet part with an opening and a wire hooking part, the wire hooking part is used for hooking wires, the wire hooking groove is internally provided with a wire surface which is convenient for a guide wire to slide into the bottom of the wire hooking part from the wire inlet part, the wire inlet part is used for enabling the wires to enter the wire hooking groove to be hooked with the wire hooking part, the opening of the wire inlet part is perpendicular to the surface of the arc-shaped hook, the cross section area of the opening of the wire inlet part is not smaller than the cross section area of the wire hooking part, at least one bending is arranged in the wire hooking groove, and all corners of the inner and outer parts of the straight muscle threading hook are round or smooth.

As a preferable scheme of the utility model, the whole shape of the interior of the hooking groove is C-shaped or hook-shaped.

As another preferable scheme of the utility model, at least two bends are arranged in the hooking groove.

Furthermore, the whole shape of the interior of the wire hooking groove is N-type, S-type or irregular.

As a third preferred scheme of the utility model, the curvature radius of the inner side of the joint of the arc-shaped hook and the holding straight handle is 2mm-3mm.

Further, the radius of curvature of the inner side of the joint of the arc-shaped hook and the holding straight handle is 2.5mm.

As a fourth preferred scheme of the utility model, the angle formed by the chord corresponding to the arc-shaped hook arc and the holding straight handle is 90-120 degrees, the inner side curvature radius of the arc-shaped hook arc is 10-14 mm, and the outer side curvature radius is 12-16 mm.

Further, the angle formed by the chord corresponding to the arc of the arc-shaped hook and the holding straight handle is 90 degrees, the inner curvature radius of the arc-shaped hook is 12mm, and the outer curvature radius of the arc-shaped hook is 14mm.

As a fifth preferred scheme of the utility model, the total length of the rectus threading hook is 8cm-12cm, the cross section of the rectus threading hook is circular, the diameter is 1mm-3mm, or the cross section of the rectus threading hook is oblate, the width is 1mm-3mm, and the thickness is 1mm-2mm.

As a sixth preferred aspect of the present utility model, the grip lever is provided with a non-slip protrusion.

The utility model has the beneficial effects that:

1. the needle is not required to be used, so that the manual needle threading is saved, the operation efficiency is improved, and unnecessary damage to tissues caused by a needle point is thoroughly avoided;

2. the operation is simple, the excessive traction of local muscles is avoided, and the reflection of the eyes and the centers is avoided;

3. the design of the thread hooking groove is convenient for hooking the suture, and once the suture is hooked, the suture is difficult to drop off by mistake;

4. the proper angle of the arc-shaped hook is convenient for a doctor to operate, is more suitable for sliding in from the bottom of the rectus eye muscle, and reduces the damage to eye tissues;

5. the grip straight handle is provided with an anti-slip bulge, so that the grip stability is improved;

6. simple structure, convenient operation of the ophthalmic surgical field, simple operation of sliding into the lower part of the muscle, little force involved in the muscle and little damage to the muscle and fascia.

Drawings

Fig. 1 is a schematic view of a prior art needle holder combined needled suture.

Fig. 2 is a schematic diagram of a prior art two-strap Kong Xieshi hook structure.

Fig. 3 is a front view of the present utility model.

Fig. 4 is a top view of the present utility model.

Fig. 5 is an enlarged view of a portion of the hooking groove of the present utility model.

Fig. 6 is a schematic view of the present utility model threading.

Fig. 7 is a diagram illustrating a structure of a C-type hooking groove according to an embodiment of the present utility model.

Fig. 8 is a block diagram of an embodiment of a hook-type hooking groove of the present utility model.

Fig. 9 is a diagram illustrating an embodiment of an N-type hooking groove according to the present utility model.

Fig. 10 is a diagram showing the structure of an irregular wire hooking groove according to an embodiment of the present utility model.

FIG. 11 is a schematic view of the circular arc inner and outer diameters of the circular arc hook of the present utility model.

FIG. 12 is a schematic view of the inside diameter of the arc at the junction of the grip knob and the arc hook of the present utility model.

In the drawing, 1 is a holding straight handle, 2 is an arc-shaped hook, 3 is a hooking groove, 4 is a wire inlet part, 5 is a hooking part, and 6 is an anti-slip protrusion.

Detailed Description

As shown in fig. 3 and 5, the single-handle metal solid instrument comprises a holding straight handle 1 and an arc-shaped hook 2 which are integrated, wherein the angle between a chord corresponding to the arc of the arc-shaped hook 2 and the holding straight handle 1 is 80-120 degrees, the inner side of the arc-shaped hook 2 is provided with a hooking groove 3, the hooking groove 3 comprises a wire inlet part 4 with an opening and a wire hooking part 5, the wire hooking part 5 is used for hooking wires, the inside of the hooking groove 3 is provided with a wire surface which is convenient for a guide wire to slide into the bottom of the wire hooking part 5 from the wire inlet part 4, the wire inlet part 4 is used for hooking the wires into the wire hooking groove 3, the opening of the wire inlet part 4 is basically perpendicular to the surface of the arc-shaped hook 2, and the cross-section area of the opening of the wire inlet part 4 is not smaller than the cross-section area of the wire hooking part 5.

As shown in fig. 7, as a preferred embodiment of the present utility model, the overall shape of the interior of the hooking groove 3 is C-shaped, and at least one bend is formed in the interior of the C-shaped hooking groove, so that the structure is simple and practical, or the overall shape of the interior of the hooking groove 3 may be hook-shaped, and the opening of the hook-shaped wire inlet portion 4 is wider than that of the C-shaped wire inlet portion 4, so that the wire can enter the wire hooking portion 5 more conveniently.

As another preferable mode of the present utility model, at least two bends are provided inside the hooking groove 3.

Further, the overall shape of the interior of the hooking groove 3 is N-type, S-type or irregular, so that the hooking groove 3 is bent more, and when the thread reaches the hooking portion 5 through the wire inlet portion 4, the thread is difficult to fall off, as shown in fig. 8, 9 and 10.

As a third preferred embodiment of the present utility model, as shown in FIG. 12, the radius of curvature r of the inner side of the junction of the arc-shaped hook 2 and the grip straight shank 1 is 2mm-3mm.

Further, the radius of curvature r of the inner side of the joint of the arc-shaped hook 2 and the holding straight shank 1 is 2.5mm.

As a fourth preferred scheme of the utility model, the angle between the chord corresponding to the arc of the arc-shaped hook 2 and the holding straight handle 1 is 80-120 DEG, and the radius of curvature R of the inner side of the arc-shaped hook 2 ₁ 10mm-14mm, outside radius of curvature R ₂ The design is 12mm-16mm, is convenient for doctors to operate, is more suitable for sliding in from the bottom of rectus oculi, and reduces the damage to eye tissues.

Further, the angle between the chord corresponding to the arc of the arc-shaped hook 2 and the holding straight handle 1 is 90 degrees to 120 degrees, and the radius of curvature R of the inner side of the arc-shaped hook 2 ₁ 12mm, outside radius of curvature R ₂ Is 14mm.

Further, the angle between the chord corresponding to the arc of the arc-shaped hook 2 and the holding straight handle 1 is 90 degrees.

As a fifth preferred scheme of the utility model, the total length of the rectus threading hook is 8cm-12cm, the cross section of the rectus threading hook is circular, the diameter is 1mm-3mm, or the cross section of the rectus threading hook is oblate, the width is 1mm-3mm, and the thickness is 1mm-2mm, and the size design accords with the principle of human engineering, so that the rectus threading hook is more convenient for an operator to hold.

Further, the total length of the rectus threading hook is 10cm, the cross section of the rectus threading hook is circular, the diameter is 2mm, or the cross section of the rectus threading hook is oblate, the width is 2mm, and the thickness is 1.5mm.

The size design is suitable for ophthalmic small-vision surgical operation, is simple to slide under rectus oculi muscle, has small traction force on muscle, and is not easy to scrape fascia.

As a sixth preferred scheme of the utility model, the grip straight shank 1 is provided with the anti-slip protrusions 6, so that the stability of grip is improved, the safety coefficient of operation is improved, and the risk of errors is reduced.

It should be understood that the foregoing detailed description of the present utility model is provided for illustration only and is not limited to the technical solutions described in the embodiments of the present utility model, and those skilled in the art should understand that the present utility model may be modified or substituted for the same technical effects; as long as the use requirement is met, the utility model is within the protection scope of the utility model.

Claims

1. The utility model provides a rectus muscle threading hook, includes integrative straight shank (1) and arc hook (2) of holding, its characterized in that, the chord that arc hook (2) circular arc corresponds is 80 ~ 120 with holding straight shank (1) and becomes, arc hook (2) inboard is provided with and colludes wire casing (3), colludes wire casing (3) including having open-ended inlet wire portion (4) and collude line portion (5), collude line portion (5) and be used for colludeing the line, collude wire casing (3) inside and set up the wire face that makes things convenient for the guide wire to slide into collude line portion (5) bottom by inlet wire portion (4), inlet wire portion (4) are used for making the line get into collude wire casing (3) inside and collude line portion (5) and collude to link, inlet wire portion (4) opening part perpendicular to arc hook (2) surface, inlet wire portion (4) opening part cross sectional area is not less than collude line portion (5) cross sectional area, collude the inside at least one of being provided with of wire casing and bending, all corners rounding or smoothing in the rectus muscle threading hook.

2. A rectus threading hook according to claim 1 characterized in that the overall internal shape of the hooking groove (3) is C-shaped or hook-shaped.

3. A rectus threading hook according to claim 1 characterized in that at least two folds are provided inside the hooking groove (3).

4. A rectus threading hook according to claim 3 characterized in that the overall internal shape of the hooking groove (3) is N-shaped, S-shaped or irregular.

5. A rectus threading hook according to claim 1 characterized in that the radius of curvature of the inner side of the junction of the arcuate hook (2) and the grip (1) is 2mm-3mm.

6. A rectus threading hook according to claim 5 characterized in that the radius of curvature of the inner side of the junction of the arcuate hook (2) and the grip (1) is 2.5mm.

7. A rectus threading hook according to claim 1 characterized in that the chord corresponding to the arc of the arc-shaped hook (2) forms an angle of 90 ° -120 ° with the grip straight shank (1), the radius of curvature of the arc-shaped hook (2) is 10mm-14mm on the inner side and 12mm-16mm on the outer side.

8. A rectus threading hook according to claim 7 characterized in that the chord corresponding to the arc of the arc-shaped hook (2) is at an angle of 90 ° to the grip straight shank (1), the arc-shaped hook (2) having an inner radius of curvature of 12mm and an outer radius of curvature of 14mm.

9. A rectus threading hook according to claim 1 wherein the length of the rectus threading hook is 8cm to 12cm, the cross section of the rectus threading hook is circular, the diameter is 1mm to 3mm, or the cross section of the rectus threading hook is oblate, the width is 1mm to 3mm, and the thickness is 1mm to 2mm.

10. A rectus threading hook according to claim 1 characterized in that said grip (1) is provided with anti-slip protrusions (6).