CN115399942A - Retina compacting device - Google Patents

Abstract

The application belongs to the technical field of medical instruments, aims to solve the problem of retina fixation in operation, and particularly relates to a retina compacting device which is used for fixing a retina in vitreous body operation and generally used in the operation process of subretinal operation and comprises a first component, a second component and a third component which are sequentially connected; the second component and the first component are arranged in a first preset included angle to form a fixing surface for the retina; the third component is used for fixing the traction wire; the longitudinal axis of the third component and the fixed surface form a second preset included angle; when putting into the vitreous intracavity, because the action of gravity, the whole back utmost point portion that can sink to in the whole eyeball of land roller, the second part forms the suppression face to the retina with the first part, and the third part that the perk set up, with retina mutually noninterference, through fixed pull wire, be convenient for to the adjustment of sending into position, suppression position of first part, second part, accomplish the suppression of predetermineeing the position to the retina, the precision is high, and the flexibility is strong.

Description

Retina compacting device

Technical Field

The application relates to the technical field of medical equipment, in particular to a retina compacting device.

Background

The retina is a transparent film-shaped nerve tissue, receives external light to generate an electric signal, transmits the electric signal to the brain through the optic nerve, and integrates information to form vision. When the retina is detached, the retina is easy to float in the vitreous cavity, and needs to be reset through an operation to achieve the treatment purpose. In the operation process of age-related macular degeneration (AMD), polypoid Choroidal Vasculopathy (PCV) and the like needing to treat subretinal hematocele, new vessels, abnormal tissues, RPE transplantation and the like, how to fix the light retina becomes a clinical problem troubling ophthalmologists.

Disclosure of Invention

In order to solve the problem of fixation of the retina during operation, the application provides a retina depressor.

The application provides a retina depressor adopts following technical scheme:

a retina roller is used for fixing the retina in the vitreous body operation, and comprises a first component, a second component and a third component which are connected in sequence; the second component and the first component are arranged in a first preset included angle to form a fixing surface for the retina; the third component is used for fixing a traction wire;

and the longitudinal axis of the third component and the fixed surface form a second preset included angle.

Through adopting above-mentioned technical scheme, when putting into the vitreous intracavity, because the action of gravity, the whole back utmost point portion that can sink to in the whole eyeball of land roller, the second part forms the suppression face to the retina with first part, guarantee fixed effect, the third part of perk setting, with retina mutually noninterference, through fixed pull wire, be convenient for to first part, the adjustment of sending into position and suppression position of second part, in order to carry out the suppression of predetermineeing the position to the retina, the precision is high, and the flexibility is strong.

Preferably, the first part comprises a cylindrical section and a guide section, and the guide section is arranged at one end of the cylindrical section far away from the second part; the outer diameter of the guide section is not larger than that of the cylindrical section;

the guide section is reversely arranged in an expanding mode, and the free end of the guide section is a blunt circular surface.

Through adopting above-mentioned technical scheme, the part that the second part was kept away from to first part is radial symmetry gradually and is reduced the setting, and the external diameter of its tip is less, is convenient for pass through the puncture fast, has fine direction effect.

Preferably, the first part has a length L1, the second part has a length L2,

by adopting the technical scheme, the first component is prevented from being overlong to influence the whole feeding.

Preferably, the third part is a columnar structure; the third member has an outer diameter no greater than the outer diameter of the second member;

the third component is provided with a traction wire connecting part;

the length of the third component is L3, the distance from the connecting part of the third component and the second component to the connecting part of the traction wire is L4,

through adopting above-mentioned technical scheme, the pull wire connecting portion set up in the third part is close to the region of free end, prevents that the pull wire of connecting from gluing and twine in the vitreous body, is close to the setting of free end, when first part, second part carry out the retina and suppress, the other end of the pull wire of connecting in the pull wire connecting portion is stayed the outside at eyeball wall puncture mouth, is convenient for pass through the position control of pull wire to first part, second part in the outside, and the flexibility is high.

Preferably, the traction wire connecting part is a groove;

and/or the presence of a gas in the gas,

the traction wire connecting part is a through hole;

and/or the presence of a gas in the gas,

the connecting part of the traction wire is a threaded section.

Through adopting above-mentioned technical scheme, guarantee the joint strength of pull wire and third part, prevent to carry out not hard up the breaking away from of pull wire when whole position control in the art.

Preferably, the first preset angle is θ 1, θ 1 ∈ [80 °,100 ° ].

Through adopting above-mentioned technical scheme, guarantee that the suppression face that first part, second part formed has better suppression effect.

Preferably, the connection between the first component and the second component and the connection between the second component and the third component are both arc transition structures.

Through adopting above-mentioned technical scheme, blunt face contact is formed in the junction of circular arc transition, prevents putting into in-process fish tail eye mask, fish tail retina when putting into the vitreous body, avoids producing secondary damage.

Preferably, the second preset angle is θ 2, θ 2 ∈ [15 °,30 ° ].

By adopting the technical scheme, the third component is slightly tilted, so that the arrangement of a traction line can be realized, and the interference to a retina and a glass body can be prevented.

Preferably, the first part, the second part and the third part are integrally formed.

By adopting the technical scheme, the appearance is good, and the influence on the overall quality due to the gaps at the joints of different parts is prevented; the integrated into one piece sets up, and the disinfection is effectual, and the use of different operations can not have cross infection.

Preferably, the first member, the second member and the third member are all made of pure gold.

By adopting the technical scheme, the operation requirement can be met, and no additional damage can be caused to a human body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first component and the second component are arranged to form a fixing surface for the detached retina in the vitreous cavity, so that the stability of retina fixing is ensured, the detached retina is effectively prevented from floating in the vitreous cavity, and the retina is prevented from being damaged; the tilting third component is arranged, so that the position of the fixed surface can be conveniently controlled; the pull wire can be fixed to the third part, is convenient for to the adjustment of sending into position and suppression position of first part, second part to carry out the suppression to the preset position of retina, can take out fast again in the operation, the precision is high, and the flexibility is strong.

2. This application can use repeatedly after the disinfection, effectively reduces patient's economic burden.

Drawings

Fig. 1 is a schematic view of the present application in an operating state.

Fig. 2 is a schematic structural diagram of a first embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic structural diagram of a second embodiment of the present application.

Fig. 5 is a schematic structural diagram of a third embodiment of the present application.

Fig. 6 is a partially enlarged schematic view of a portion B in fig. 5.

Description of the reference numerals: 1. a retina; 2. a glass body; 3. a lens; 4. a pupil; 5. a cornea; 6. performing surgical incision; 10. a first member; 11. a cylindrical section; 12. a guide section; 20. a second component; 30. a third component; 31. a pull wire connection section; 40. and (6) pulling the wire.

Detailed Description

The present application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses a retina compacting device.

Referring to fig. 1, the retinal depressor disclosed in the present application is mainly used for a surgery under the retina 1, such as macular degeneration, PCV, or a surgical treatment requiring a subretinal operation, in which an intervention is first required to cause a detachment of the retina 1, and after the retina 1 is turned up, an excision of a tissue under the retina 1, a removal of blood, and the like are performed. After the retina 1 is turned up, because liquid and liquid flow exist in the cavity where the vitreous body 2 is positioned, the detached retina 1 floats in the cavity of the vitreous body 2 under the action of the liquid, and the damage to the retina 1 is easily caused; in the operation, the retina depressor is arranged in the cavity of the vitreous body 2 from the operation incision 6, and can be directly pressed on the outer surface of the turned retina 1 due to the action of gravity so as to fix the retina 1 to the back pole part of the cavity of the vitreous body 2, and in the operation, the forceps are controlled to extend into the cavity from the operation incision 6 to adjust the position of the retina depressor; after the operation under the retina 1 is finished, the retina depressor is taken out from the operation incision 6 through a traction wire fixed on the retina depressor, and the next retina 1 resetting operation is not influenced.

In the present application, the posterior pole refers to the lateral wall area of the vitreous chamber 2 near the bottom, ensuring an effective fixation of the detached retinal 1 point.

In the eyeball, the pupil 4 can always keep a proper amount of light rays entering the eye, so that the shape and the image of an object falling on the retina 1 are clear, and the retina 1 is not burnt by excessive light rays; the lens 3 is positioned in the eyeball, mainly positioned in the front half part of the eyeball, the back part is the vitreous body 2, the front part is the cornea 5 and aqueous humor and iris behind the cornea 5, the periphery can contact with the ciliary body and iris, the lens is similar to a convex lens, the convex lens is positioned in the eyeball like a magnifying glass, and the two ends are fixedly suspended behind the iris and in front of the vitreous body 2 by the suspensory ligament, and the lens is one of important refraction interstitials of the eyeball. The vitreous body 2 is an eyeball inclusion, is a colorless and transparent gelatinous substance, and is covered with a glass film on the surface; the vitreous body 2 is filled between the crystalline lens 3 and the retina 1 and occupies about 4/5 of the eye cavity, and the vitreous body 2 plays a supporting role for the retina 1 so as to ensure that the retina 1 is tightly attached to the pigment epithelium. The retina 1 is a very important tissue in our eyes, and after all light rays are shot into the eyes, the clear image is imaged on the retina 1, so that the clear image can be seen clearly, therefore, when the operation is performed under the retina 1, the integrity of the retina 1 is very critical, and if the retina 1 is damaged in the process, secondary damage can be caused to a patient.

Referring to fig. 2 and 3, in a first embodiment of the present application, a retinal roller for surgically fixing a retina 1 on a vitreous body 2 comprises a first member 10, a second member 20 and a third member 30 which are connected in sequence, wherein the first member 10 is a head part and the third member 30 is a tail part, and during surgery, the third member 30 is held by forceps special for minimally invasive surgery to manipulate the first member 10 and the second member 20 to pass through a surgical incision 6, and the whole is delivered into a cavity of the vitreous body 2, and sinks by gravity of the retinal roller to fix the detached retina 1 to a posterior pole part of the cavity of the vitreous body 2. The junction of the first component 10 and the second component 20 and the junction of the second component 20 and the third component 30 are both arc transition structures, the junction of the arc transition avoids the generation of sharp corners, and the formed arc surface prevents the retina 1 from being scratched when the eye mask is placed in the process of being placed in the vitreous body 2, and avoids the generation of secondary damage.

The second component 20 and the first component 10 form a first preset included angle to form a fixing surface for the retina 1, wherein the first preset angle is theta 1, theta 1 belongs to [80 degrees ], and 100 degrees ], so that the compacting surface formed by the first component 10 and the second component 20 has a good compacting effect. The press formed by the included angle being too small or too large does not achieve a predetermined pressing effect on the inner portion of the region between the first and second members 10, 20.

It should be noted that, the present application is applicable to minimally invasive surgery, the diameter of the micro-incision surgery is about 0.4-0.5mm, and the size of the retinal roller disclosed in the present application only needs to satisfy the passing of the surgical incision 6 and the pressing of the retina 1, so detailed description of the specific size of the retinal roller is omitted.

The first component 10 as a head comprises a cylindrical section 11 and a guide section 12, the guide section 12 is arranged at one end of the cylindrical section 11 far away from the second component 20, namely the cylindrical section 11 is a cylindrical section connected with the second component 20, the diameter of the cylindrical section 11 is consistent with that of the second component 20, and the stability and effectiveness of a fixing surface are ensured; the external diameter of the guide section 12 is not larger than that of the cylindrical section 11, so that smooth guiding along the operation incision 6 is ensured while the pressing effect is ensured.

The guide section 12 is preferably arranged to be expanded reversely in the application, the free end of the guide section 12 is a blunt round surface, that is, the part of the first component 10 far away from the second component 20 is gradually and symmetrically reduced in radial direction, and the outer diameter of the end part is smaller, so that the guide section can rapidly pass through the puncture hole to realize rapid introduction.

The first member 10 has a length L1, the second member 20 has a length L2,

the first member 10 is prevented from being too long and affecting the overall feeding.

The third component 30 is of a columnar structure and used for fixing a traction line, a second preset included angle is formed between the longitudinal axis of the third component and the fixing surface, the second preset angle is theta 2, theta 2 is larger than [15 degrees ] and 30 degrees ], namely the third component 30 and the fixing surface are located on different planes, the third component 30 is slightly tilted, in an operation, the clamping adjustment of tweezers is facilitated, the setting of the traction line is facilitated, and meanwhile, the interference on the retina 1 and the vitreous body 2 is prevented when the suppression effect is met.

The outer diameter of the third member 30 is not greater than the outer diameter of the second member 20, when the detached retina 1 is fixed to the posterior pole of the cavity of the vitreous body 2 as a whole, since the cavity of the vitreous body 2 is spherical, and the diameter of the third member 30 is too large, the third member has a certain weight, and when the third member is arranged on the lower side wall of the spherical surface, instability of the first member 10 and the second member 20 may be caused, therefore, the outer diameter of the third member 30 is smaller than or equal to the outer diameter of the second member 20, the pressing stability of the first member 10 and the second member 20 can be effectively ensured, and damage to the retina 1 caused by instability can be effectively prevented.

The third member 30 is provided with a traction wire connection 31; the length of the third member 30 is L3, the distance from the connection of the third member 30 to the second member 20 to the traction wire connection 31 is L4,

the pull wire connecting part 31 is arranged at a position close to the tail end of the third component 30, the connected pull wire is prevented from being stuck in the vitreous body 2, the pull wire connecting part is close to the free end, when the retina 1 is pressed on the first component 10 and the second component 20, the other end of the pull wire connected in the pull wire connecting part 31 is left outside the eyeball wall puncture opening, the current position of the first component 10 and the second component 20 can be rapidly determined along the pull wire at the outer side, the quick adjustment is convenient, and the flexibility is high.

In this embodiment, pull wire connecting portion 31 is the recess, and before the operation, the fixed binding of pull wire is in this recess, binds the recess region of pull wire not higher than the top of recess, prevents to form the pimple in the recess region, and the influence is in the sending into or taking out of operation incision 6.

In a preferred embodiment of the present application, the first component 10, the second component 20 and the third component 30 are integrally formed, so that the appearance is good, and the existence of gaps at the joints of different components is prevented, so that the overall quality is not affected; the integrated into one piece sets up, and it is effectual to disinfect, prevents that the disinfection is not in place in the connection gap of disconnect-type connection, and the use of different operations can not have cross infection.

The first component 10, the second component 20 and the third component 30 are all made of pure gold, so that the requirement of the operation can be met, and no additional damage can be caused to a human body.

The preferable traction line is No. 7 line, which meets the requirement of minimally invasive surgery.

Referring to fig. 4, in another embodiment of the present application, the pull wire connection portion 31 is a threaded section, a thread groove of the threaded section is disposed lower than an outer side of the third member 30, and the threaded section increases friction force with the pull wire, thereby improving fixing strength.

Referring to fig. 5 and 6, in the third embodiment of the present application, the traction wire connection part 31 is a through hole through which the traction wire is inserted to prevent the traction wire from being loosened and separated when the overall position is adjusted during the operation.

The implementation principle of the retina roller in the embodiment of the application is as follows: the third component 30 is clamped, so that the whole smooth feeding is realized, when the glass body 2 is placed in a cavity, due to the action of gravity, the compacting machine integrally sinks to the rear pole part in an eyeball, namely the rear pole part of the cavity of the glass body 2, the second component 20 and the first component 10 form a compacting surface for the retina 1, the fixing effect is ensured, the third component 30 arranged in a tilting mode does not interfere with the retina 1 mutually, and the position of the first component 10 and the position of the second component 20 can be conveniently confirmed and adjusted through a fixed traction line, so that the compacting for the preset position of the retina 1 is carried out, and the precision is high, and the flexibility is strong; after the operation under the retina 1 is finished, the whole body is taken out from the operation incision 6 through the traction wire, the operation is simple and convenient, and the device can be repeatedly used after being sterilized.

When the operation is carried out, the patient lies on the operating table, and eyes upwards see, set up three operation incision on the eyeball wall, one is used for pouring into, and two are the handle hole in addition, and the operation incision that passes through in this application is the handle hole, because the diameter of trocar and surgical instruments is all very little, only need pass through three very little needle eyes (the diameter is 0.5 millimeters) through the eyeball wall, so the incision can seal by oneself after the sleeve pipe is pulled out, need not sew up, and the wound is very little.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A retinal roller for surgically fixing the retina (1) in the vitreous (2), characterized in that: comprises a first part (10), a second part (20) and a third part (30) which are connected in sequence; the second component (20) and the first component (10) are arranged in a first preset included angle to form a fixing surface for the retina (1); the third part (30) is used for fixing a traction wire;

the longitudinal axis of the third component (30) and the fixed surface form a second preset included angle.

2. The retinal roller of claim 1, wherein: the first part (10) comprises a cylindrical section (11) and a guide section (12), and the guide section (12) is arranged at one end, far away from the second part (20), of the cylindrical section (11); the outer diameter of the guide section (12) is not larger than that of the cylindrical section (11);

the guide section (12) is arranged in a reverse expansion mode, and the free end of the guide section (12) is a blunt round surface.

3. The retinal roller of claim 1, wherein: the first part (10) has a length L1 and the second part (20) has a length L2,

4. the retinal roller of claim 3, wherein: the third part (30) is of a columnar structure; the third component (30) has an outer diameter no greater than the outer diameter of the second component (20);

the third part (30) is provided with a traction wire connection (31);

the length of the third part (30) is L3, the distance from the connection of the third part (30) with the second part (20) to the traction wire connection (31) is L4,

5. the retinal roller of claim 4, wherein: the traction wire connecting part (31) is a groove;

and/or the presence of a gas in the gas,

the traction wire connecting part (31) is a through hole;

and/or the presence of a gas in the gas,

the traction wire connecting part (31) is a threaded section.

6. The retinal roller of claim 1, wherein: the first predetermined angle is θ 1, θ 1 ε [80 °,100 ° ].

7. The retinal roller of claim 1, wherein: the joint of the first component (10) and the second component (20) and the joint of the second component (20) and the third component (30) are both arc transition structures.

8. The retinal roller of claim 1, wherein: the second predetermined angle is θ 2, θ 2 ε [15 °,30 ° ].

9. The retinal roller of claim 1, wherein: the first component (10), the second component (20) and the third component (30) are integrally formed.

10. The retinal roller of claim 1, wherein: the first component (10), the second component (20) and the third component (30) are all made of pure gold.

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