CN218484671U

CN218484671U - Eyeball fixator

Info

Publication number: CN218484671U
Application number: CN202222453626.0U
Authority: CN
Inventors: 马飞; 宋清露; 刘庆淮
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-02-17
Anticipated expiration: 2032-09-16

Abstract

The invention relates to the field of medical instruments, in particular to the field of microsurgery instruments, and more particularly relates to an eyeball fixer, which comprises a fixing ring, wherein a notch is formed in the fixing ring; the fixing ring is of a hollow structure; the adjustable clamping ring further comprises an operating handle, the operating handle comprises a group of clamping sheets which are arranged in pairs, and a coil spring which is fixedly arranged in the fixed ring core structure, an adjusting small pipe is fixed at the free end of the coil spring, the adjusting small pipe extends out of one end of the notch of the fixed ring, and the extending part forms a notch adjusting part. After the technical scheme disclosed by the invention is adopted, the position of the notch can be adjusted by adjusting the small pipe, so that a proper space is reserved for the separation operation of the lens, and the operation habits of different operators are met. Meanwhile, the invention breaks away from the traditional design idea, and the operating handle is arranged at the relative position of the notch, thereby increasing the fixing range and providing more stable fixing effect.

Description

Eyeball fixator

Technical Field

The invention relates to the field of medical instruments, in particular to the field of microsurgery instruments, and more particularly relates to an eyeball fixer.

Background

Myopia is one of the most common eye diseases in China, the incidence rate is high throughout the year, and the basic number of myopia groups is huge. In 2022, the shortsightedness population in China is nearly 7 hundred million. Every year, many myopia patients desire to realize the dream of 'taking off the glasses' through operation.

With the introduction of femtosecond laser, total femtosecond laser corneal stromal lens extraction (SMILE) has become one of the most mainstream surgical methods in clinic, and is a major breakthrough in surgical design concept. The operation does not have the manufacture of the corneal flap, thereby not only avoiding the operation complication related to the corneal flap, but also reducing the influence on the biomechanics of the cornea to the maximum extent.

The SMILE operation is mainly divided into two steps, wherein the first step is to scan corneal stroma through femtosecond laser to manufacture a corneal stroma lens, and the second step is to separate the manufactured corneal stroma lens through a surgical instrument and take out the corneal stroma lens from a 2mm incision to finish the operation.

In the second lens separation operation, the eyeball of many patients may move upwards or in other directions due to tension, fear and the like, and the random and sudden eyeball movement may have great influence on the separation of the lenses, sometimes even result in tearing of the incision and the corneal cap or breakage of the lenses, causing serious complications and having great influence on the surgical effect and safety of the patients.

In order to avoid the movement of the eyeball, a double-manipulation operation is recommended in most of the current surgeries, i.e., one hand is used for fixing the eyeball by using straight forceps, and the other hand is used for separating the lens, so as to prevent the surgery risk caused by the movement of the eyeball. The operation has the advantages that the safety of the operation is improved, and the operation risk caused by eyeball movement is effectively avoided. However, a great deal of clinical case review and analysis shows that the operation of fixing the eyeball by using the straight forceps brings discomfort such as pain, traction and the like to many patients, possibly causes or aggravates the tension of the patients, and also brings certain influence on the matching degree of the patients and the subjective satisfaction of the operation. The fixation mode of the straight forceps is that the eyeball is in a relatively fixed position through the traction fixation of the corneoscleral limbus bulbar conjunctiva and the fascial tissues under the conjunctiva, discomfort and pain are caused by the traction action in the fixation process, and meanwhile, the fixation of the straight forceps on some patients may cause complications such as subconjunctival hemorrhage and the like, the appearance after the operation is affected, and the clinical satisfaction degree of the operation is further reduced.

CN104921869A discloses an eyeball fixer, which comprises a handle, a connecting rod and a fixing ring, wherein the handle comprises a holding part coaxially manufactured on the handle, one end of the handle is fixedly connected with one side of the fixing ring through the connecting rod, and the central lines of the handle, the connecting rod and the fixing ring are on a plane; the fixing ring is in the shape of an open ring, the connecting rod is connected and arranged on a near opening end of the fixing ring, the inner surface of the fixing ring is in a curved surface design with a gradient from top to bottom, and the radian of the curved surface is matched with the surface curvature of a cornea. Since the position of the notch is not adjustable, it may cause inconvenience for different operators. Meanwhile, the connecting rod is connected and arranged at a near opening end of the fixing ring, the distance between the connecting rod and the right hand operation position (120 degrees) is short, the fixing range of the eyeball is relatively small, and if a patient has large eyeball movement, the eyeball can not be completely fixed, so that the operation risk is caused.

Disclosure of Invention

The technical problem to be solved by the invention is to provide an eyeball fixer, which can provide more gap position possibilities, thereby facilitating the operation of an operator and providing more stable fixing force.

In order to solve the technical problem, the invention discloses an eyeball fixer, which comprises a fixing ring, wherein a notch is formed in the fixing ring; the fixing ring is of a hollow structure; the clamping device is characterized by further comprising an operating handle, the operating handle and the fixing ring are fixed in an angle mode, the operating handle comprises a group of clamping pieces which are arranged in pairs, one clamping piece is fixed with the outer wall of the fixing ring to form a fixed clamping piece, the other clamping piece is fixed with a clamping head to form a moving clamping piece, and the fixed clamping piece is fixed with the top of the moving clamping piece; the adjustable clamping head further comprises a coil spring fixedly arranged in the fixed ring core structure, an adjusting small pipe is fixed at the free end of the coil spring, the adjusting small pipe extends out of one end of the gap of the fixed ring, the extending part forms a gap adjusting part, the clamping head is fixed with the adjusting small pipe, and a limiting groove used for moving the clamping head is formed in the fixed ring.

Further preferably, the operating handle is provided with an adjusting member for adjusting a distance between the fixed clamping piece and the movable clamping piece.

As a preferable technical scheme, the multifunctional electric operating handle further comprises an adjusting sleeve, and the adjusting sleeve is sleeved outside the operating handle. The adjusting sleeve is used for limiting the two clamping pieces in the operating handle in the adjusting sleeve, so that the space allowed by the adjusting sleeve is basically the same as the size of the two clamping pieces after being completely attached, and the adjusting sleeve can be slightly larger than the size of the two clamping pieces after being completely attached for convenient movement but cannot be too large, otherwise, the adjusting sleeve cannot limit the clamping pieces. Fixed holding piece and the closed position of motion holding piece just can be adjusted to certain adjusting collar from top to bottom, and then the terminal interval of regulation to drive the dop and remove, adjust breach regulation part size, and then adjust the breach size.

In a preferred technical scheme, the clamping device further comprises an adjusting bolt and an adjusting nut, a through hole is formed in the moving clamping piece, the adjusting bolt penetrates through the through hole and is fixed with the fixed clamping piece, and the adjusting nut is screwed at the open end of the adjusting bolt. Through adjusting nut's screwing, can make the motion holding piece constantly be close to fixed holding piece to realize the adjustment between fixed holding piece and the motion holding piece relative distance, and then drive the dop and remove, adjust the size of breach adjustment part, and then adjust the breach size.

In a preferred technical scheme, the operating handle is arranged opposite to the notch. By relative disposition is meant that the operating handle is at an angle of substantially 180 deg. to the indentation. Different from the design idea that the connecting rod is connected and arranged on the near opening end of the fixing ring in the traditional technology, the operating handle and the notch are preferably arranged oppositely and basically form a 180-degree position, so that the eyeball fixing effect in the operation can be obviously improved.

In a preferred technical scheme, the operating handle and the operating ring are fixed at an angle of 120 degrees.

Further preferably, the moving clamping piece is located at the right side of the fixed clamping piece. Usually, the operator fixes the eyeball for the left hand position, and the operation is performed on the right hand position, so the motion clamping piece is arranged on the right side of the fixed clamping piece, and the motion clamping piece can be easily adjusted by using the thumb of the left hand.

As a preferable technical scheme, the top of the adjusting small pipe is 2cm away from the other end of the fixing ring at the gap.

Further preferably, the notch adjustment portion is a 1cm circular arc.

After the technical scheme disclosed by the invention is adopted, the position of the notch can be adjusted by adjusting the small tube, so that a proper space is reserved for the separation operation of the lens, and the operation habits of different operators are met. Meanwhile, the invention breaks away from the traditional design idea, and the operating handle is arranged at the relative position of the notch, thereby increasing the fixing range and providing more stable fixing effect.

Drawings

FIG. 1 is a schematic view of an eyeball fixer in the embodiment 1.

FIG. 2 is a schematic view of an eyeball holder in example 2.

FIG. 3 is a schematic view of an eyeball fixator in example 3.

Fig. 4 is a schematic view of the internal structure of the fixing ring.

Detailed Description

In order that the invention may be better understood, we now provide further explanation of the invention with reference to specific examples.

Example 1

An eyeball fixer as shown in fig. 1 comprises a fixing ring 1, wherein a gap 2 is arranged on the fixing ring 1; the fixing ring is of a hollow structure; still include operating handle, operating handle and solid fixed ring are the angle and fix, as shown in figure 1, operating handle and operating ring are 120 fixed. The operating handle comprises a group of clamping pieces which are arranged in pairs, wherein one clamping piece is fixed with the outer wall of the fixing ring to form a fixed clamping piece 302, the other clamping piece is fixed with a clamping head 6 to form a movable clamping piece 302, and the fixed clamping piece 301 is fixed with the top of the movable clamping piece 302; as shown in fig. 4, the clamping device further comprises a coil spring 4 fixedly arranged in the fixed ring core structure, an adjusting small pipe 5 is fixed at the free end of the coil spring 4, the adjusting small pipe 5 extends out of one end of the gap of the fixed ring, the extending part forms a gap adjusting part 501, the clamping head 6 is fixed with the adjusting small pipe, and a limiting groove for moving the clamping head is formed in the fixed ring.

In this embodiment, the operating handle is preferably arranged opposite the notch. As shown in fig. 1, the operating handle is substantially 180 ° from the notch.

Further preferably, the moving clamping piece is located on the right side of the fixed clamping piece as can be seen in connection with fig. 1.

In this embodiment, it can be seen from fig. 1 that the top of the adjusting small pipe is 2cm away from the other end of the gap of the fixing ring, and the gap adjusting part is a circular arc of 1 cm.

When in use, an operator holds the eyeball fixer with the left hand and holds the forceps for the lens separation operation with the right hand. The left hand and the right hand are 180 degrees. At this moment, if the breach is the undersize, perhaps can not satisfy art person's needs, then with the thumb application of force of left hand, impel the motion clamping piece to be close to fixed clamping piece, the dop is driven this moment, and then the tractive is adjusted tubule and is moved backward, and breach adjusting part enters into the fixed ring gradually, and the breach increases, and the breach is adjusted to 3cm in this embodiment the biggest. When the operation is finished, the thumb of the left hand is relaxed, and at the moment, the coil spring which is deformed in the backward moving process of the adjusting tubule pushes the adjusting tubule to move forward under the action of restoring force to restore to the initial position.

Example 2

On the basis of embodiment 1, a possible adjusting member is provided in this embodiment, so that the operator can conveniently adjust the movable clamping piece.

As can be seen by combining the figures 1 and 2, the adjusting handle also comprises an adjusting sleeve 7, and the adjusting sleeve 7 is sleeved outside the operating handle.

During the use, the art person is through promoting the adjusting collar, because the space that the adjusting collar can allow is the same with the size behind two centre gripping pieces are laminated completely, consequently constantly promotes the in-process of adjusting collar downwards just can realize adjusting fixed centre gripping piece and the closed position of motion centre gripping piece, and then adjusts the terminal interval of fixed centre gripping piece and motion centre gripping piece to drive the dop and remove, adjust breach adjustment part size, and then adjust the breach size.

When the left hand is adjusted to a proper position, the left hand does not need to apply force continuously, and the operation can be performed by relaxing. After the operation is finished, the adjusting sleeve is pushed upwards to the initial position, and the coil spring which generates deformation in the backward moving process of the adjusting small pipe pushes the adjusting small pipe to move forwards under the action of restoring force and then returns to the initial position.

Example 3

On the basis of embodiment 1, another possible adjusting member is provided in this embodiment, so that the operator can adjust the motion clamping piece conveniently.

As can be seen from fig. 1 and 3, the clamping device further comprises an adjusting bolt 8 and an adjusting nut 9, a through hole is formed in the moving clamping piece, the adjusting bolt penetrates through the through hole and is fixed with the fixed clamping piece, and the adjusting nut is screwed at the open end of the adjusting bolt.

During the use, the art person can make the motion holding piece constantly be close to fixed holding piece through the adjusting nut of constantly screwing to realize the adjustment between fixed holding piece and the motion holding piece relative distance, and then drive the dop and remove, adjust the partly size of breach regulation, and then adjust the breach size.

When adjusted to the proper position, the left hand does not need to continue to exert force, and the operation can be performed by relaxing. After the operation is finished, the adjusting nut is rotated reversely to the initial position, and the coil spring which is deformed in the backward moving process of the adjusting small pipe pushes the adjusting small pipe to move forward under the action of restoring force and restores to the initial position.

What has been described above is a specific embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims

1. Eyeball fixer, its characterized in that: the fixing ring is provided with a notch; the fixing ring is of a hollow structure; the clamping device is characterized by further comprising an operating handle, the operating handle and the fixing ring are fixed in an angle mode, the operating handle comprises a group of clamping pieces which are arranged in pairs, one clamping piece is fixed with the outer wall of the fixing ring to form a fixed clamping piece, the other clamping piece is fixed with a clamping head to form a moving clamping piece, and the fixed clamping piece is fixed with the top of the moving clamping piece; the adjustable clamping head further comprises a coil spring fixedly arranged in the fixed ring core structure, an adjusting small pipe is fixed at the free end of the coil spring, the adjusting small pipe extends out of one end of the gap of the fixed ring, the extending part forms a gap adjusting part, the clamping head is fixed with the adjusting small pipe, and a limiting groove used for moving the clamping head is formed in the fixed ring.

2. The ocular fixer of claim 1, wherein: the operating handle is provided with an adjusting piece.

3. The ocular fixer of claim 1, wherein: the adjustable handle is characterized by further comprising an adjusting sleeve, and the adjusting sleeve is sleeved outside the operating handle.

4. The ocular fixer of claim 1, wherein: the clamping device is characterized by further comprising an adjusting bolt and an adjusting nut, a through hole is formed in the moving clamping piece, the adjusting bolt penetrates through the through hole and is fixed with the fixed clamping piece, and the adjusting nut is screwed at the open end of the adjusting bolt.

5. An ocular fixer as claimed in claim 1, wherein: the operating handle is arranged opposite to the notch.

6. An ocular fixer as claimed in claim 1, wherein: the operating handle and the operating ring are fixed at 120 degrees.

7. The eyeball fixer as claimed in any one of claims 1 to 4, wherein: the moving clamping piece is positioned on the right side of the fixed clamping piece.

8. The ocular fixer of claim 1, wherein: the distance between the top of the adjusting small pipe and the other end of the gap of the fixing ring is 2cm.

9. An ocular fixer as claimed in claim 1, wherein: the gap adjusting part is a 1cm circular arc.