CN213346301U

CN213346301U - Lacrimal forming device

Info

Publication number: CN213346301U
Application number: CN202021637590.6U
Authority: CN
Inventors: 白芳; 陶海; 王菲
Original assignee: Third Medical Center of PLA General Hospital
Current assignee: Third Medical Center of PLA General Hospital
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-06-04
Anticipated expiration: 2030-08-07

Abstract

The utility model provides a punctum former, include: a main handle comprising a handle portion; stretch into the piece, stretch into the piece including stretching into portion and connecting portion, stretch into the portion including point portion and the platform that links to each other with point portion, the one end of connecting portion is connected in the main handle, the other end of connecting portion is connected in the platform, point portion is located the one side that connecting portion were kept away from to the platform, and point portion reduces gradually in the ascending cross-sectional area of the side of keeping away from connecting portion, cuts the piece and has the shearing part, cuts the movably setting in shearing area of part. The cross-sectional area of the tip part in the direction far away from the connecting part is gradually reduced, so that the tip part can more easily go deep into the lacrimal punctum to reach the lacrimal canaliculus ampulla part, the mucous membrane around the outer layer of the lacrimal punctum can not be damaged, and the problems that the head end of the existing apparatus is flat, the lacrimal punctum can not be directly go deep into and the lacrimal punctum is easily damaged are solved.

Description

Lacrimal forming device

Technical Field

The utility model relates to the technical field of ophthalmic medical equipment, concretely relates to punctum former.

Background

Punctal stenosis or atresia is a common condition of the eye. The punctum formation is the main operation mode, basically needs to be carried out by every patient who receives lacrimal duct operation, the currently clinical use is that the scleral occluder used for glaucoma operation completes the punctum formation, but the head end is flat, the punctum is difficult to directly penetrate into the punctum, the punctum is easy to be damaged, especially for the elderly patients, the punctum structure is loose due to the poor eyelid supporting force, the flat scleral occluder often causes secondary tear of the punctum and epithelial frizz in the process of penetrating into the punctum, and the postoperative punctum and lacrimal canaliculus irreversible tear occurs, thus the operation effect is affected.

Therefore, it is necessary to develop a punctal shaper to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a punctum shaper so as to extend into the punctum.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a punctum former, include:

a main handle comprising a bendable handle portion;

the lacrimal punctum tissue cutting device comprises an extending part and a connecting part, wherein the extending part comprises a tip part and a platform connected with the tip part, one end of the connecting part is connected with the main handle, the other end of the connecting part is connected with the platform, the tip part is positioned on one side of the platform far away from the connecting part, the cross section area of the tip part in the direction far away from the connecting part is gradually reduced, and a cutting area for accommodating lacrimal punctum tissue is defined between the platform and the main handle;

a shear having a shear portion movably disposed within the shear zone.

In some embodiments of the present invention, the cutting portion is arc-shaped and formed with a cutting edge at an end near the platform.

In some embodiments of the present invention, the main handle further comprises a guiding portion connected to the handle portion, the guiding portion cooperating with the cutting member to guide a moving track of the cutting portion; the handle portion includes the arc, the arc is close to the one end of guide part is equipped with the connecting plate, be equipped with the slot on the connecting plate, be equipped with the inserted sheet on the guide part, the inserted sheet stretches into in the slot.

In some embodiments of the present invention, a plurality of fixing bolts pass through the connecting plate and the insertion sheet to position the insertion sheet in the slot.

The utility model discloses an in some embodiments, be equipped with the constant head tank on the guide part and with the locating hole that the constant head tank is linked together, the one end of connecting portion stretches into in the constant head tank, the locating pin stretches into the locating hole and end in connecting portion are in order to incite somebody to action connecting portion are located in the constant head tank.

In some embodiments of the present invention, the cutting portion is provided with a limiting through hole, and the connecting portion is slidably disposed in the limiting through hole to limit the moving track of the cutting portion.

In some embodiments of the present invention, the guiding portion is provided with a guiding through hole, the cutting member further comprises a guiding rod connected to the cutting portion, and the guiding rod is slidably disposed in the guiding through hole.

In some embodiments of the utility model, still include the driving piece, the driving piece includes connecting rod and curved spring plate, the one end of spring plate connect in handle portion, the other end of spring plate with the one end of connecting rod is rotated and is linked to each other, the other end of connecting rod with the guide bar rotates and links to each other.

In some embodiments of the present invention, the guide rod comprises a first rod and a second rod detachably connected to the first rod, the first rod is connected to the cutting portion and slidably disposed in the guide through hole, and the connecting rod is rotatably connected to the second rod.

In some embodiments of the present invention, the device further comprises a connection nut, wherein the connection nut is provided with a threaded through hole;

the first body of rod is close to the one end of the second body of rod is equipped with first connection spiral shell head, the second body of rod is close to the one end of the first body of rod is equipped with the second and connects the spiral shell head, the spiral of the overhead screw thread of first connection spiral shell with the spiral of the overhead screw thread of second connection spiral shell is opposite, first connection spiral shell head with the second is connected the spiral shell head and is followed respectively the fenestrate both ends of screw stretch into in the screw thread wearing hole.

The utility model discloses a characteristics and advantage of punctum shaper are: the cross-sectional area of the tip part in the direction far away from the connecting part is gradually reduced, so that the tip part can more easily go deep into the lacrimal punctum to reach the lacrimal canaliculus ampulla part, the mucous membrane around the outer layer of the lacrimal punctum can not be damaged, and the problems that the head end of the existing apparatus is flat, the lacrimal punctum can not be directly go deep into and the lacrimal punctum is easily damaged are solved.

After the extending part enters the lacrimal punctum, the lacrimal punctum tissue can be positioned on the platform, and the shearing part is moved to enable the shearing part to move towards the platform, so that the lacrimal punctum tissue on the platform is cut off, the lacrimal punctum is shaped after biting, and the operation effect of the lacrimal punctum shaping is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a cross-sectional view of a punctal former according to an embodiment of the invention;

fig. 2 is a partial schematic view of the punctal former shown in fig. 1.

The reference numbers illustrate:

1. a main handle; 11. a handle portion; 111. an arc-shaped plate; 112. a connecting plate; 12. a guide portion; 121. inserting sheets; 122. a guide through hole; 13. fixing the bolt; 14. positioning pins;

2. an insertion member; 21. an insertion portion; 211. a tip portion; 212. a platform; 22. a connecting portion; 23. a cutting area;

3. a cutting member; 31. a shearing section; 311. a blade; 312. a limiting through hole; 32. a guide bar; 321. a first rod body; 3211. a first connecting screw head; 322. a second rod body; 3221. a second connecting screw head;

4. a drive member; 41. a connecting rod; 42. a spring plate;

5. a connecting nut; 51. and (4) perforating the thread.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The first embodiment;

as shown in fig. 1 and 2, the present invention provides a punctal shaper comprising: a main handle 1, said main handle 1 comprising a handle portion 11; the lacrimal passage incision device comprises an extension piece 2, wherein the extension piece 2 comprises an extension part 21 and a connecting part 22, the extension part 21 comprises a tip part 211 and a platform 212 connected with the tip part 211, one end of the connecting part 22 is connected with the main handle 1, the other end of the connecting part 22 is connected with the platform 212, the tip part 211 is positioned at one side of the platform 212 far away from the connecting part 22, the cross-sectional area of the tip part 211 in the direction far away from the connecting part 22 is gradually reduced, and a shearing area 23 for accommodating lacrimal point tissues is defined between the platform 212 and the main handle 1; a cutting member 3, the cutting member 3 having a cutting portion 31, the cutting portion 31 being movably disposed within the cutting region 23.

It can be understood that the cross-sectional area of the tip portion 211 in the direction away from the connecting portion 22 is gradually reduced, so that the tip portion 211 can easily penetrate into the lacrimal punctum to reach the lacrimal canaliculus ampulla portion, the mucous membrane around the outer layer of the lacrimal punctum can not be damaged, and the problem that the head end of the existing apparatus is flat, is difficult to directly penetrate into the lacrimal punctum, and easily damages the lacrimal punctum is solved.

After the penetration 21 enters the punctum, the punctum tissue can be positioned on the platform 212, at which time the shear 31 is moved to move the shear 31 toward the platform 212, thereby cutting off the punctum tissue on the platform 212 to facilitate the formation of the punctum after biting and improving the surgical effect of the punctum formation.

Example two;

as shown in fig. 1 and 2, the present invention provides a punctal shaper comprising: a main handle 1, the main handle 1 comprising a handle portion 11 and a guide portion 12 connected to the handle portion 11; the lacrimal passage incision device comprises an extension piece 2, wherein the extension piece 2 comprises an extension part 21 and a connecting part 22, the extension part 21 comprises a tip part 211 and a platform 212 connected with the tip part 211, one end of the connecting part 22 is connected with the guide part 12, the other end of the connecting part 22 is connected with the platform 212, the tip part 211 is positioned at one side of the platform 212 far away from the connecting part 22, the cross-sectional area of the tip part 211 in the direction far away from the connecting part 22 is gradually reduced, and a shearing area 23 for accommodating lacrimal point tissues is defined between the platform 212 and the guide part 12; the cutting member 3 is provided with a cutting part 31, the cutting part 31 is movably arranged in the cutting area 23, and the guide part 12 is matched with the cutting member 3 to guide the moving track of the cutting part 31.

Example three;

the present embodiment is different from the above-described embodiments in that;

as shown in fig. 1 and 2, in the present embodiment, the cutting portion 31 has a circular arc shape at an end close to the platform 212 and is formed with a blade 311. Thereby, the punctum tissue on the platform 212 is cut off by the blade 311, and the operation effect is improved.

In some embodiments of the present invention, the handle portion 11 includes an arc plate 111, the arc plate 111 is close to the one end of the guiding portion 12 is provided with a connecting plate 112, the connecting plate 112 is provided with a slot, the guiding portion 12 is provided with an inserting piece 121, and the inserting piece 121 extends into the slot.

It will be appreciated that removal of the guide 12 from the web 112 is facilitated to facilitate cleaning and sanitizing of the guide 12.

It should be noted that the radian of the arc-shaped plate 111 can be selected according to actual use conditions, as long as the arc-shaped plate 111 is prevented from blocking the view of the doctor, in some embodiments, the middle portion of the arc-shaped plate 111 may be protruded toward the direction of the driving member 4 mentioned below, so as to prevent the arc-shaped plate 111 from blocking the view of the doctor, and improve the operation effect.

The utility model discloses an in some embodiments, arc 111 can be flexible metal part to the doctor can buckle arc 111 by the in-service use condition, in order to avoid arc 111 to shelter from doctor's realization. In some embodiments, the arc plate 111 may be an aluminum plate, a steel plate, a copper plate, or the like, as long as the arc plate 111 can be bent, and the material of the arc plate 111 is not limited herein, and it should be noted that the force required for bending the arc plate 111 is greater than the force required for pressing the position of the connection between the spring plate 42 and the connection rod 41, which is described below, so as to prevent the arc plate 111 from bending when the position of the connection between the spring plate 42 and the connection rod 41 is pressed, so as to ensure the stability of the operation.

In some embodiments of the present invention, a plurality of fixing bolts 13 pass through the connecting plate 112 and the insertion sheet 121 to position the insertion sheet 121 in the insertion slot. Thereby, the connection stability between the guide portion 12 and the connection plate 112 is improved.

In some embodiments of the present invention, the guiding portion 12 is provided with a positioning groove and a positioning hole communicated with the positioning groove, one end of the connecting portion 22 extends into the positioning groove, and the positioning pin 14 extends into the positioning hole and ends to the connecting portion 22 to position the connecting portion 22 in the positioning groove.

It will be appreciated that removal of the obtrusive member 2 from the guide portion 12 is facilitated by the attachment portion 22 extending into the locating slot to facilitate cleaning and sanitizing of the obtrusive member 2.

In some embodiments of the present invention, a limiting through hole 312 is disposed on the cutting portion 31, and the connecting portion 22 is slidably disposed in the limiting through hole 312 to limit a moving track of the cutting portion 31.

Example four;

as shown in fig. 1 and fig. 2, in the present embodiment, a guide through hole 122 is formed on the guide portion 12, and the cutting member 3 further includes a guide rod 32 connected to the cutting portion 31, wherein the guide rod 32 is slidably disposed in the guide through hole 122. Thereby, the movement locus of the guide rod 32 is restricted.

In some embodiments of the present invention, the punctal shaper further comprises a driving member 4, the driving member 4 comprises a connecting rod 41 and an arc-shaped spring plate 42, one end of the spring plate 42 is connected to the handle portion 11, the other end of the spring plate 42 is rotatably connected to one end of the connecting rod 41, and the other end of the connecting rod 41 is rotatably connected to the guide bar 32.

It can be understood that when the position of the joint of the spring plate 42 and the connecting rod 41 is pressed, the spring plate 42 is gradually straightened, and the connecting rod 41 drives the guide rod 32 to move in the guide through hole 122, so as to drive the cutting part 31 to move, so that the cutting part 31 cuts off the punctum tissue on the platform 212, so that the punctum is shaped after biting, and the surgical effect of punctum shaping is improved.

After the punctum tissue on the platform 212 is cut off, the spring plate 42 is restored to the arc shape by the elastic force of the spring plate 42, so that the cutting portion 31 is restored to be convenient for the next use.

In some embodiments of the present invention, the guiding rod 32 includes a first rod 321 and a second rod 322 detachably connected to the first rod 321, the first rod 321 is connected to the cutting portion 31 and slidably disposed in the guiding through hole 122, and the connecting rod 41 is rotatably connected to the second rod 322. Thereby, detachment of the cutter 3 from the guide 12 is facilitated, so that the cutter 3 can be easily cleaned and sterilized.

In some embodiments of the present invention, the present invention further comprises a connection nut 5, wherein the connection nut 5 is provided with a threaded through hole 51; one end of the first rod 321, which is close to the second rod 322, is provided with a first connection screw head 3211, one end of the second rod 322, which is close to the first rod 321, is provided with a second connection screw head 3221, a screwing direction of a thread on the first connection screw head 3211 is opposite to a screwing direction of a thread on the second connection screw head 3221, and the first connection screw head 3211 and the second connection screw head 3221 respectively extend into the thread through hole 51 from two ends of the thread through hole 51.

It can be understood that the first connection screw 3211 and the second connection screw 3221 are both threadedly connected to the connection nut 5, and since the direction of rotation of the threads on the first connection screw 3211 is opposite to the direction of rotation of the threads on the second connection screw 3221, when the connection nut 5 is rotated, the first connection screw 3211 and the second connection screw 3221 on both sides of the connection nut 5 can simultaneously enter the threaded through hole 51, so that the first rod 321 and the second rod 322 can be conveniently detached from each other, and the assembly efficiency is improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A punctal shaper, comprising:

a main handle comprising a bendable handle portion;

a shear having a shear portion movably disposed within the shear zone.

2. The punctal former of claim 1 wherein the cut out portion is rounded at an end proximate the platform and is formed with a cutting edge.

3. The punctal former of claim 1, wherein the main handle further comprises a guide portion connected to the handle portion, the guide portion cooperating with the cutting member to guide a path of movement of the cutting portion; the handle portion includes the arc, the arc is close to the one end of guide part is equipped with the connecting plate, be equipped with the slot on the connecting plate, be equipped with the inserted sheet on the guide part, the inserted sheet stretches into in the slot.

4. The punctal former of claim 3 wherein a plurality of fixing bolts pass through the connecting plate and the tab to position the tab within the slot.

5. The punctal former of claim 3, wherein the guide portion has a positioning slot and a positioning hole in communication with the positioning slot, one end of the connecting portion extends into the positioning slot, and the positioning pin extends into the positioning hole and abuts against the connecting portion to position the connecting portion in the positioning slot.

6. The punctal former of claim 1, wherein the cutting portion has a limiting through hole, and the connecting portion is slidably disposed in the limiting through hole to limit a movement path of the cutting portion.

7. The punctal former of claim 3, wherein the guide portion has a guide through-hole, and wherein the cutting member further comprises a guide rod connected to the cutting portion, the guide rod being slidably disposed in the guide through-hole.

8. The punctal former of claim 7, further comprising an actuator that includes a connecting rod and an arcuate spring plate, one end of the spring plate being connected to the handle portion, the other end of the spring plate being pivotally connected to one end of the connecting rod, the other end of the connecting rod being pivotally connected to the guide rod.

9. The punctal former of claim 8, wherein the guide rod comprises a first rod and a second rod detachably connected to the first rod, the first rod being connected to the cutting portion and slidably disposed in the guide through-hole, the connecting rod being rotatably connected to the second rod.

10. The punctal former of claim 9, further comprising a coupling nut having a threaded bore therethrough;