CN112690944A - Sclera jacking positioner - Google Patents

Abstract

The invention relates to the field of ophthalmic medical instruments, and particularly discloses a sclera jacking positioner which comprises a handle and a jacking mechanism, wherein the jacking mechanism comprises a jacking plate connected to the lower end of the handle and two jacking spinous processes arranged on the jacking plate, the front surface of the jacking plate is of a concave arc surface structure, and the two jacking spinous processes are both in a truncated cone shape, and one bottom surface with a smaller surface area is used as a squeezing surface contacted with the surface of a sclera. By adopting the invention, when an operator presses the sclera, under the condition of applying the acting force with the same magnitude, the pressing spinous process can form more obvious and more durable indentation on the surface of the sclera; the invention has simple structure, convenient use, strong practicability and meeting the social requirement, and is favorable for popularization and application in the field of ophthalmic medical treatment.

Description

Sclera jacking positioner

Technical Field

The invention relates to the field of ophthalmic medical instruments, in particular to a sclera jacking positioner.

Background

Retinal detachment is a common blinding eye disease which develops rapidly and has great harm to vision, and needs to be discovered early, treated in time and subjected to a reduction operation; according to statistics, the number of people who need to receive the retina reduction operation in China is more than 40 ten thousand every year; if the patients cannot be treated correctly in time, the eyeball atrophy and the visual loss can be caused finally; if the optimal time of the operation is delayed, the problems of poor vision recovery after the operation, more operation complications, low operation success rate and the like can be caused.

Accurate sclera positioning is needed to be carried out on a retinal fissure hole in the retinal detachment operation, and the position of lesion is determined, so that the specific position of sclera external pressurization is determined; the sclera compressor is used for pressing the scleral wall from the outer top of the eyeball to cause the scleral wall to invaginate, so that an operator can observe the peripheral retina through the cornea; in operation, the corresponding position of the observed peripheral retinal tear on the scleral wall needs to be marked, so that the scleral wall at the corresponding position is cushioned, and the detached retina is reset.

In the prior art, as shown in patent CN 203122741U or CN 203506967U, the pressing body used in the sclera pressing apparatus is generally in an ellipsoidal shape, which can form an indentation mark, but because of the surface contact between the pressing body and the sclera, the generated indentation is not obvious and easily disappears along with the elastic recovery of the sclera, at this time, an additional dyeing mark is needed, which increases the complexity of the operation, and the dyeing mark is easily diffused, resulting in low mark positioning accuracy; meanwhile, the conventional sclera compressor cannot mark and estimate the size (width or length) of the focus.

The above technical problems need to be solved.

Disclosure of Invention

In view of the above, the present invention provides a scleral pressing and positioning device, which is beneficial to forming a distinct and durable impression on the surface of the sclera and is also beneficial to marking and estimating the size of the lesion.

In order to achieve the purpose, the invention provides a sclera jacking and positioning device which comprises a handle and a jacking mechanism, wherein the jacking mechanism comprises a jacking plate connected to the lower end of the handle and two jacking spinous processes arranged on the jacking plate, the front surface of the jacking plate is of a concave arc surface structure, and the two jacking spinous processes are both in a truncated cone shape and have smaller surface area, and one bottom surface is used as a squeezing surface contacted with the surface of a sclera.

As a further improvement of the technical scheme of the invention, the two jacking spinous processes are distributed on the same circumference and are both vertical to the front surface of the jacking plate.

As a further improvement of the technical scheme of the invention, the two jacking spinous processes are symmetrically distributed.

As a further improvement of the above technical solution of the present invention, the ratio of the radii of the two bottom surfaces of the spinous process against each other is 1: (3-8).

As a further improvement of the above technical solution of the present invention, an accommodating chamber is provided in the top pressure plate, two through holes corresponding to the two top pressure spinous processes one to one are provided on the front surface of the top pressure plate, and the through holes are communicated with the accommodating chamber; the jacking spinous process can move along the axial direction of the through hole, so that the jacking spinous process is embedded in the accommodating cavity or protrudes from the front surface of the jacking plate.

As a further improvement of the above technical solution of the present invention, an arc-shaped movable plate is movably disposed in the accommodating chamber, and both the two pressing spinous processes are fixedly connected to the front surface of the movable plate; the movable plate is connected with the driving mechanism and is driven by the driving mechanism to move towards the front of the jacking plate, so that the two jacking ratchet protrusions move along the axial direction of the through hole.

As a further improvement of the above technical scheme, the handle is in a straight rod shape and is provided with an axial pore channel along the axial direction, and the axial pore channel is communicated with the accommodating cavity; the driving mechanism comprises a driving rod and a driving sheet, the driving rod is coaxially arranged in the axial hole and can move along the axial direction of the axial hole, the driving sheet is of a metal elastic sheet structure and comprises a fixing section and a connecting section, the fixing section is fixedly connected in the axial hole or the containing cavity, one end of the connecting section is obliquely fixed on the fixing section, the other end of the connecting section is fixed on the movable plate, and the lower end of the driving rod tightly abuts against the connecting section in the axial extending process of the axial hole and orders the connecting section to drive the movable plate to move towards the front of the jacking plate.

As a further improvement of the technical proposal of the invention, the upper end of the driving rod extends out of the top of the handle and is connected with a pressing cap.

As a further improvement of the above technical solution of the present invention, the driving rod is connected with an elastic reset piece for urging the driving rod to be disengaged from the driving piece.

As a further improvement of the above technical solution, an annular limiting groove is formed in the inner wall of the handle along the radial direction of the axial hole, an annular limiting block is formed in the outer wall of the driving rod along the radial direction of the driving rod, the limiting block extends into the limiting groove, and the elastic return element is a compression spring which is sleeved outside the driving rod and is arranged between the limiting block and the limiting groove.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention provides a sclera jacking positioner, which is characterized in that a jacking mechanism is arranged to comprise a jacking plate connected to the lower end of a handle and two jacking spinous processes arranged on the jacking plate, the front surface of the jacking plate is of a concave arc surface structure, the two jacking spinous processes are both in a truncated cone shape, and one bottom surface with a smaller surface area is used as an extrusion surface contacted with the surface of a sclera; the invention has simple structure, convenient use, strong practicability and meeting the social requirement, and is favorable for popularization and application in the field of ophthalmic medical treatment.

Drawings

FIG. 1 is a schematic structural view of a first state of the present invention;

FIG. 2 is a schematic structural diagram of a second state of the present invention;

FIG. 3 is a schematic structural diagram of a movable plate according to the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a schematic structural diagram of the driving mechanism of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments; of course, the drawings are simplified schematic drawings, and the scale of the drawings does not limit the patented products.

Examples

As shown in fig. 1 to 5: the embodiment provides a sclera jacking and positioning device which comprises a handle 1 and a jacking and pressing mechanism, wherein the jacking and pressing mechanism comprises ajacking plate 2 connected to the lower end of the handle 1 and two jacking and pressingspinous processes 3 arranged on thejacking plate 2, the front surface of thejacking plate 2 is of a concave arc surface structure, and the two jacking and pressingspinous processes 3 are both in a truncated cone shape and have a bottom surface with a smaller surface area and are used as extrusion surfaces contacted with the surface of a sclera.

The handle 1 is used for hand-held operation; the jacking mechanism is used for jacking the sclera to form a temporary mark, and of course, the jacking mechanism can also act on a conjunctiva or other parts.

"Up" and "down" are based on the directions shown in FIGS. 1 and 2; the front surface of thetop pressure plate 2 is matched with the structure of the eyeball of a human body, and the radian of the top pressure plate can be set according to the requirement as long as the top pressure plate can be basically attached to the surface of the eyeball; the corners of thetop pressure plate 2 are designed to be round corners, so that the use safety is improved; the number of the pressingspinous processes 3 can be more than two, and the present embodiment is only illustrated by two as an example, and the principle is the same.

The jackingspinous process 3 is in a truncated cone shape, namely a geometric body enclosed by a curved surface formed by rotating the rest sides by taking a straight line of a right trapezoid perpendicular to the waist of the bottom side as a rotating shaft; as can be seen from fig. 4, the top pressurespinous process 3 has a small upper part and a large lower part, and the upper bottom surface is an extrusion surface, and the contact with the surface of the sclera is closer to point contact, so that the extrusion pressure can be effectively increased; according to the needs, the ratio of the radius of the two bottom surfaces of the top pressurespinous process 3 can be 1: (3-8).

By adopting the structure, when an operator presses the sclera, under the condition of applying the acting force with the same magnitude, the pressingspinous process 3 can form more obvious and more durable indentation on the surface of the sclera, and simultaneously, because the two pressingspinous processes 3 are simultaneously used for pressing, the distance between the two pressingspinous processes 3 is fixed, and the marking and estimation of the size of the focus are facilitated.

In this embodiment, the two pressingspinous processes 3 are distributed on the same circumference and are both perpendicular to the front surface of thepressing plate 2, so as to be beneficial to vertically pressing the surface of the sclera; meanwhile, the two pressingspinous processes 3 are symmetrically distributed, for example, can be symmetrically distributed based on the center line of thepressing plate 2 or the axis of the handle 1, so as to form regular indentations.

In this embodiment, an accommodating cavity 2a is formed in thetop pressure plate 2, two throughholes 2b corresponding to the two top pressurespinous processes 3 one by one are formed in the front surface of thetop pressure plate 2, and the throughholes 2b are communicated with the accommodating cavity 2 a; the pressingspinous process 3 can move along the axial direction of thethrough hole 2b, so that the pressingspinous process 3 is embedded in the accommodating cavity 2a or protrudes from the front surface of thepressing plate 2. The axis of thethrough hole 2b is vertical to the front surface of thetop pressure plate 2; by adopting the structure, the jackingspinous process 3 is in a hidden design, namely, the jackingspinous process 3 protrudes from the front surface of the pressing plate when jacking is needed, and the jackingspinous process 3 is embedded in the accommodating cavity 2a when limitation is carried out or in an aiming stage, so that improper damage is prevented, and the jacking accuracy can be improved.

In this embodiment, an arc-shapedmovable plate 4 is movably disposed in the accommodating cavity 2a, and both the pressingspinous processes 3 are fixedly connected to the front surface of themovable plate 4; themovable plate 4 is connected with the driving mechanism and is driven by the driving mechanism to move towards the front of thepressing plate 2, so that the two pressingspinous processes 3 move along the axial direction of thethrough hole 2 b. Themovable plate 4 is of a metal thin plate structure, and the radian of the movable plate is adapted to the radian of the front surface of thetop pressure plate 2; the lower bottom surfaces of the two pressingspinous processes 3 are fixed on the front surface of themovable plate 4, and the pressingspinous processes 3 are arranged towards the corresponding throughholes 2 b; the driving mechanism is used for applying force to themovable plate 4, so that the pressingspinous process 3 protrudes from the front surface of thepressing plate 2 to generate instant pressing acting force on the surface of the retina; through the arrangement of themovable plate 4 and the driving mechanism, the two jackingspinous processes 3 can act synchronously, so that jacking is rapid and accurate, and the operation efficiency is greatly improved.

In this embodiment, the handle 1 is in a straight rod shape and is provided with anaxial hole passage 1a along the axial direction, and theaxial hole passage 1a is communicated with the accommodating cavity 2 a; the driving mechanism comprises adriving rod 5 and a driving sheet 6, thedriving rod 5 is coaxially arranged in theaxial hole 1a and can move along the axial direction of theaxial hole 1a, the driving sheet 6 is of a metal elastic sheet structure and comprises afixed section 61 and a connectingsection 62, thefixed section 61 is fixedly connected in theaxial hole 1a or the accommodating cavity 2a, one end of the connectingsection 62 is obliquely fixed on thefixed section 61, the other end of the connectingsection 62 is fixed on themovable plate 4, and the lower end of thedriving rod 5 tightly abuts against the connectingsection 62 in the axial extending process of theaxial hole 1a and drives the connectingsection 62 to drive themovable plate 4 to move towards the front of thetop pressure plate 2. The handle 1 may be of round or oval rod construction and may be, for example, 80mm in length; thethrough hole 2b is preferably a circular hole structure, and the diameter of the through hole can be 1mm for example; the larger bottom surface against thespinous process 3 may be, for example, 0.5mm in diameter and 1mm in height. Thefixing section 61 and the connectingsection 62 of the driving plate 6 can be integrally formed, the connectingsection 62 tilts from the lower end of thefixing section 61 and faces thedriving rod 5, the back of the connectingsection 62 is matched with thedriving rod 5, when thedriving rod 5 moves downwards, thedriving rod 5 tightly supports the back of the connectingsection 62 and enables the connecting part between thefixing section 61 and the connectingsection 62 to deform, so that the connectingsection 62 moves and drives themovable plate 4 to move, the two pressingspinous processes 3 protrude from the front of the pressing plate 2 (as shown in fig. 1), and when thedriving rod 5 moves upwards, the connectingsection 62 and themovable plate 4 both reset (as shown in fig. 2).

In the embodiment, the upper end of thedriving rod 5 extends out of the top of the handle 1 and is connected with apressing cap 7; thepressing cap 7 is convenient for the operator to apply force to thedriving rod 5; when the surgical operation device is used, an operator can contact the thumb with thepressing cap 7 and control the movement of thepressing cap 7 through the thumb, and the rest four fingers tightly grip the handle 1, so that the stability of the surgical operation can be effectively improved.

In this embodiment, thedriving rod 5 is connected with anelastic reset piece 8 for urging the driving rod to be separated from the driving sheet 6; by adopting the structure, after the operator removes the acting force on thedriving rod 5, thedriving rod 5 can be reset quickly, thereby achieving convenient and accurate operation and improving the success rate of the operation. The elastic resettingpiece 8 can adopt various structures; specifically, the inner wall of handle 1 is equipped withannular spacing groove 1b alongaxial pore 1 a's radial, the outer wall of actuatinglever 5 is equipped withannular stopper 51 along its radial,stopper 51 extends to in thespacing groove 1b,elasticity resets 8 and establishes the compression spring betweenstopper 51 andspacing groove 1b for the cover establishes outside actuatinglever 5.

Finally, the principle and embodiments of the present invention are explained by using specific examples, and the above descriptions of the examples are only used to help understand the core idea of the present invention, and the present invention can be modified and modified without departing from the principle of the present invention, and the modified and modified examples also fall into the protection scope of the present invention.

Claims (10)

1. The utility model provides a sclera roof pressure locator, includes handle and roof pressure mechanism, its characterized in that: the top pressing mechanism comprises a top pressing plate connected to the lower end of the handle and two top pressing spinous processes arranged on the top pressing plate, the front surface of the top pressing plate is of a concave arc surface structure, and the two top pressing spinous processes are both in a truncated cone shape, and one bottom surface with a smaller surface area is used as a pressing surface contacted with the surface of the sclera.

2. The scleral pressing and positioning device as claimed in claim 1, wherein: the two jacking spinous processes are distributed on the same circumference and are perpendicular to the front surface of the jacking plate.

3. The scleral pressing and positioning device as claimed in claim 1, wherein: the two jacking spinous processes are symmetrically distributed.

4. The scleral pressing and positioning device as claimed in claim 1, wherein: the ratio of the radiuses of the two bottom surfaces of the jacking spinous processes is 1: (3-8).

5. The scleral press locator of any one of claims 1 to 4, wherein: the top pressing plate is internally provided with an accommodating cavity, the front surface of the top pressing plate is provided with two through holes which are in one-to-one correspondence with the two top pressing spinous processes, and the through holes are communicated with the accommodating cavity; the jacking spinous process can move along the axial direction of the through hole, so that the jacking spinous process is embedded in the accommodating cavity or protrudes from the front surface of the jacking plate.

6. The scleral pressing and positioning device of claim 5, wherein: an arc-shaped movable plate is movably arranged in the accommodating cavity, and the two jacking spinous processes are fixedly connected to the front surface of the movable plate; the movable plate is connected with the driving mechanism and is driven by the driving mechanism to move towards the front of the jacking plate, so that the two jacking ratchet protrusions move along the axial direction of the through hole.

7. The scleral pressing and positioning device of claim 6, wherein: the handle is in a straight rod shape and is provided with an axial pore channel along the axial direction, and the axial pore channel is communicated with the accommodating cavity; the driving mechanism comprises a driving rod and a driving sheet, the driving rod is coaxially arranged in the axial hole and can move along the axial direction of the axial hole, the driving sheet is of a metal elastic sheet structure and comprises a fixing section and a connecting section, the fixing section is fixedly connected in the axial hole or the containing cavity, one end of the connecting section is obliquely fixed on the fixing section, the other end of the connecting section is fixed on the movable plate, and the lower end of the driving rod tightly abuts against the connecting section in the axial extending process of the axial hole and orders the connecting section to drive the movable plate to move towards the front of the jacking plate.

8. The scleral press locator of claim 7, wherein: the upper end of the driving rod extends out of the top of the handle and is connected with a pressing cap.

9. The scleral press locator of claim 7, wherein: the driving rod is connected with an elastic reset piece used for promoting the driving rod to be separated from the driving sheet.

10. The scleral press locator of claim 9, wherein: the inner wall of handle is equipped with annular spacing groove along axial pore's radial, the outer wall of actuating lever radially is equipped with annular stopper along it, the stopper extends to in the spacing groove, elasticity resets and establishes the compression spring between stopper and spacing groove for the cover establishes outside the actuating lever.

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