Lacrimal point plug implanter without expanding lacrimal point

Abstract

The utility model provides a lacrimal point plug implanter without expanding a lacrimal point, which belongs to the technical field of ophthalmology treatment and comprises a lacrimal point plug, a release component is arranged at the tail of the lacrimal point plug, and an implanter main body component is slidably connected into the release component. The problems that an existing lacrimal point plug implanting device is relatively large in clinical operation difficulty, lacrimal point expansion is not in place, a lacrimal point plug is difficult to implant, the operation time is prolonged, the pain of a patient is increased, the lacrimal point plug can fall off in the expansion process, the size of the lacrimal point plug is extremely small, the lacrimal point plug cannot be found after falling off, and the practicability of the device is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ophthalmic treatment technical field, concretely relates to a kind of punctum plug implanters without dilating punctum. BACKGROUND

[0002] Dry eye, also known as keratoconjunctival xerosis, is a common and complex ophthalmic disease caused by insufficient tear secretion, excessive tear evaporation or abnormal tear composition, which can cause eye discomfort symptoms and visual dysfunction. Punctum plug implantation is one of the most commonly used methods for treating dry eye. The punctum plug is a medical-grade silicone material. Punctum plug implantation restricts the discharge of tear fluid through a non-penetrating plug or a penetrating plug to increase the natural tear fluid that lubricates the ocular surface. This treatment can effectively relieve dry eye symptoms for a long time. During the treatment, a sesame seed-sized punctum plug is temporarily or permanently placed in the punctum.

[0003] The existing punctum plug implanters have the following problems. When in use, the lacrimal canaliculus is narrow, so the user needs to dilate the lacrimal canaliculus before implantation. After dilation, the user needs to reposition and then extend the implant to the dilated position. The extension depth should not be too deep or too shallow, which makes the clinical operation relatively difficult. This can lead to various problems such as punctum dilation failure, punctum plug implantation difficulty, prolonged surgery time, increased patient pain, and low punctum plug implantation efficiency and patient experience. Moreover, the punctum plug is not firmly fixed at the other end of the device to facilitate implantation, which can cause the punctum plug to fall during the dilation step. The punctum plug itself is extremely small, so it cannot be found after falling, which reduces the practicality of the device. SUMMARY

[0004] The utility model provides a kind of punctum plug implanters without dilating punctum, its purpose is to solve the existing punctum plug implanters clinical operation relatively difficult, punctum dilation failure, punctum plug implantation difficulty, prolonged surgery time, increased patient pain, and in the dilation process can lead to punctum plug drop, and punctum plug itself is extremely small, it cannot be found after falling, which reduces the practicality of the device.

[0005] The utility model embodiment provides a kind of punctum plug implanters without dilating punctum, including punctum plug, the tail of the punctum plug is provided with release assembly, the inside of the release assembly is slidably connected with implant main component.

[0006] By adopting the above technical scheme, under the action of the implant main assembly, the punctum plug can be in a pre-stretched state, the diameter is small, the shape is smooth, the lacrimal canaliculus does not need to be expanded, the punctum plug can be stretched into the expected punctum position, the punctum plug can be released and implanted under the cooperation of the release assembly, the whole process does not need to expand the lacrimal canaliculus, the operation difficulty is small, the requirement for the user is lower, the operation time is prolonged and shortened, the unnecessary pain and discomfort of the patient are reduced, the efficiency of the punctum plug implantation and the experience of the patient are greatly improved, and under the action of the release assembly, the punctum plug is fixed at the head end, the risk of falling of the punctum plug during other operations in the operation is not considered, and the practicability of the instrument is greatly improved.

[0007] Further, the release assembly comprises a release shell, a release sliding groove is formed on the release shell, two connecting claws are symmetrically and fixedly connected to one end of the release shell close to the punctum plug, and the other ends of the two connecting claws are fixedly connected to fixing rings.

[0008] By adopting the above technical scheme, the release shell is pulled to the right, the two connecting claws are unfolded outward, the two fixing rings are unfolded outward, the punctum plug can be grabbed or released, when the punctum plug is inserted into the implant main assembly, the release shell is loosened, the fixing rings are clamped on the tail of the punctum plug, and the punctum plug is fixed, so that the punctum plug does not fall during other operations in the operation.

[0009] Further, uneven patterns are arranged on the outer wall of the release shell.

[0010] By adopting the above technical scheme, the friction between the hands of the user and the release shell is increased by arranging the uneven patterns, and the user can pull the release shell to the right more conveniently.

[0011] Further, the implant main assembly comprises an implant main body which is slidingly connected in the release shell, a release limiting part is fixedly connected to the outer wall of the implant main body, and the release limiting part is slidingly installed in the release sliding groove.

[0012] By adopting the above technical scheme, under the action of the release limiting part, it is ensured that the release shell moves along the fixed track, and when the release shell is loosened, it is ensured that the release shell does not separate from the implant main body under the action of force, and the stable connection of the release shell on the implant main body is ensured.

[0013] Further, the head of the implant main body is in a circular truncated cone structure, and the large-diameter end is in a round corner structure.

[0014] By adopting the technical scheme, the circular truncated cone structure and the rounded corner structure are arranged, the friction between the two connecting claws and the head of the implant main body is reduced, the release shell is more convenient to pull to the right, and the wear between the two connecting claws and the head of the implant main body is reduced.

[0015] Further, the inner walls of the two connecting claws are attached to the rounded corners of the head of the implant main body.

[0016] By adopting the technical scheme, when the lacrimal plug needs to be released or grabbed, the two fixing rings can be opened only by moving the release shell to the right a little, so that the use is more time-saving and labor-saving, and the experience and work efficiency of the user are improved.

[0017] Further, the implant main body assembly further comprises a pre-stretching sliding groove opened on the implant main body and a telescopic core rod arranged in the implant main body, the pre-stretching sliding groove is slidably connected with a pre-stretching button, the lower end of the pre-stretching button is fixedly connected with a connecting plate, the side of the connecting plate is slidably connected in the implant main body, one end of the telescopic core rod passes through the connecting plate and is fixedly connected with a telescopic core rod clamping piece, and the telescopic core rod clamping piece is fixedly connected with the connecting plate.

[0018] By adopting the technical scheme, the pre-stretching button is pushed to the left or pulled to the right to the left end or the right end of the pre-stretching sliding groove, the pre-stretching button drives the connecting plate to slide to the left or to the right, and the connecting plate drives the telescopic core rod to elongate to the left or contract to the right, so that the elongation and contraction of the telescopic core rod are ensured.

[0019] Further, the other end of the telescopic core rod extends out of the implant main body and is inserted into the lacrimal plug.

[0020] By adopting the technical scheme, when the telescopic core rod elongates to the left, the lacrimal plug is stretched, deformed, and has a small diameter and a smooth shape, so that the lacrimal plug can be implanted without expanding the lacrimal canaliculus.

[0021] Further, the tail end of the implant main body assembly is fixedly connected with a lacrimal duct expansion rod.

[0022] By adopting the technical scheme, the doctor can gradually familiarize with the product before use, and the expansion function is reserved for special patients, patients with extremely narrow lacrimal canaliculus and the like, and the practicability of the instrument is improved.

[0023] The beneficial effects of the utility model are as follows:

[0024] The utility model discloses an implantation device for tear point plug, including implantation device main part assembly, release assembly and tear point plug, implantation device main part assembly is provided with pre-stretching button, pre-stretching sliding groove and release shell, tear point plug is provided with head end and tail end, tear point plug is provided with the tear point plug pre-stretching structure of pre-stretching button, pre-stretching sliding groove and release shell are connected.

[0025] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and attained by the structure particularly pointed out in the description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application. In the drawings:

[0027] Figure 1 It is the whole structural schematic drawing of the embodiment of the utility model;

[0028] Figure 2 It is release assembly structure schematic drawing of the embodiment of the utility model;

[0029] Figure 3 It is implantation device main part structure schematic drawing of the embodiment of the utility model;

[0030] Figure 4 It is implantation device main part cross section structure schematic drawing of the embodiment of the utility model;

[0031] Figure 5 It is tear point plug pre-stretching structure schematic drawing of the embodiment of the utility model;

[0032] Figure 6 It is tear point plug release implantation structure schematic drawing of the embodiment of the utility model;

[0033] Figure 7 It is tear point plug amplification structure schematic drawing of the embodiment of the utility model;

[0034] Mark No. : 1, punctum plug; 2, release assembly; 201, release shell; 202, release sliding groove; 203, connecting claw; 204, fixing ring; 3, implant main assembly; 301, implant main body; 302, release limit; 303, pre-stretching sliding groove; 304, telescopic core rod; 305, pre-stretching button; 306, connecting card plate; 307, telescopic core rod clamping jaw; 4, punctum dilating rod. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the technical scheme of the utility model more clear, the technical scheme of the utility model embodiment will be described clearly and completely in the following with reference to the drawings of the utility model embodiment. The same reference signs in the drawings represent the same parts. It should be noted that the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0036] With reference to Figures 1-7 The utility model embodiment proposes a punctum plug implant without dilating punctum, which comprises a punctum plug 1, the tail of the punctum plug 1 is provided with a release assembly 2, the inside of the release assembly 2 is slidably connected with an implant main assembly 3, under the action of the implant main assembly 3, the punctum plug 1 can be in a pre-stretching state, the diameter is small, the appearance is smooth, the punctum plug 1 can be stretched into the intended punctum position without dilating the lacrimal canaliculus, the punctum plug 1 can be released and implanted under the cooperation of the release assembly 2, the whole process does not need to dilate the lacrimal canaliculus, the operation difficulty is small, the requirement for the user is lower, the operation time is prolonged and shortened, the unnecessary pain and discomfort of the patient are reduced, the efficiency of the punctum plug 1 implant and the experience of the patient are greatly improved, and under the action of the release assembly 2, the punctum plug 1 is fixed at the head end, the risk of the punctum plug 1 falling during other operations in the operation is not considered, and the practicability of the instrument is greatly improved.

[0037] With reference to Figure 1 And Figure 6The release assembly 2 includes a release housing 201, on which a release sliding groove 202 is provided. Two connecting claws 203 are symmetrically fixedly connected to one end of the release housing 201 near the punctum plug 1, and the other end of the two connecting claws 203 is fixedly connected to a fixing ring 204. The release housing 201, connecting claws 203 and fixing ring 204 are integrally formed. The two fixing rings 204 engage with the tail of the punctum plug 1. Pulling the release housing 201 to the right causes the two connecting claws 203 to unfold outward, which in turn causes the two fixing rings 204 to unfold outward, thereby grasping or releasing the punctum plug 1. When the punctum plug 1 is inserted into the implanter main body assembly 3, the release housing 201 is released so that the fixing rings 204 engage with the tail of the punctum plug 1, thereby fixing the punctum plug 1 and preventing the punctum plug 1 from falling off during other operations in the surgery.

[0038] Reference Figure 1 and Figure 2 The outer wall of the release housing 201 is provided with an uneven pattern. The uneven pattern increases the friction between the user's hand and the release housing 201, making it easier to pull the release housing 201 to the right.

[0039] Reference Figure 1 and Figure 3 The implanter main body assembly 3 includes an implanter body 301 slidably connected inside the release shell 201. A release limit 302 is fixedly connected to the outer wall of the implanter body 301. The release limit 302 is slidably installed inside the release sliding groove 202. Under the action of the release limit 302, the release shell 201 is ensured to move along a fixed track, and when the release shell 201 is released, the release shell 201 is ensured not to detach from the implanter body 301 under the action of force, thereby ensuring that the release shell 201 is stably connected to the implanter body 301.

[0040] Reference Figure 1 and Figure 3 The head of the implanter body 301 has a frustum-shaped structure, and the end with the larger diameter has a rounded corner structure. The frustum-shaped structure and the rounded corner structure reduce the friction between the two connecting claws 203 and the head of the implanter body 301, making it easier to pull the outer shell 201 to the right and reducing the wear between the two connecting claws 203 and the head of the implanter body 301.

[0041] Reference Figure 1 and Figure 5 The inner walls of the two connecting claws 203 are attached to the rounded corners of the head of the implant body 301. When it is necessary to release or grasp the tear punctum plug 1, the two fixing rings 204 can be opened by simply moving the release shell 201 slightly to the right. This makes it more time-saving and labor-saving to use, and improves the user experience and work efficiency.

[0042] With reference to Figure 3 With reference to Figure 4 , the implant body assembly 3 further comprises a pre-stretch sliding groove 303 formed on the implant body 301 and a telescopic core rod 304 arranged inside the implant body 301, the pre-stretch sliding groove 303 is slidably connected with a pre-stretch button 305, the lower end of the pre-stretch button 305 is fixedly connected with a connecting clamping plate 306, the side of the connecting clamping plate 306 is slidably connected inside the implant body 301, one end of the telescopic core rod 304 penetrates through the connecting clamping plate 306 and is fixedly connected with a telescopic core rod clamping jaw 307, the telescopic core rod clamping jaw 307 is fixedly connected with the connecting clamping plate 306, the pre-stretch button 305 is horizontally pushed to the left end or pulled to the right end of the pre-stretch sliding groove 303, the pre-stretch button 305 drives the connecting clamping plate 306 to slide to the left or to the right, the connecting clamping plate 306 drives the telescopic core rod 304 to elongate to the left or to contract to the right, so as to ensure the elongation and contraction of the telescopic core rod 304.

[0043] With reference to Figure 5 With reference to Figure 7 , the other end of the telescopic core rod 304 extends out of the implant body 301 and is inserted into the punctum plug 1, when the telescopic core rod 304 elongates to the left, it drives the punctum plug 1 to stretch, so that the punctum plug 1 deforms, the diameter becomes smaller and the shape is smooth, so that the punctum plug 1 can be implanted without expanding the canaliculus.

[0044] With reference to Figure 1 , Figures 3-6 , the tail end of the implant body assembly 3 is fixedly connected with a punctum expanding rod 4, so that the doctor can use the product after gradually getting familiar with it, and the expanding function is reserved for special patients, patients with extremely narrow canaliculus and other defects, so as to improve the practicability of the instrument.

[0045] The specific implementation is that: in use, the release shell 201 is pulled to the right, so that the two connecting jaws 203 expand outward, driving the two fixed rings 204 to expand outward, so that the fixed rings 204 can be opened, the one end of the telescopic core rod 304 extending out of the implant body 301 is inserted into the punctum plug 1, the release shell 201 is loosened, the fixed rings 204 are clamped on the tail of the punctum plug 1, the punctum plug 1 is fixed, the pre-stretch button 305 is horizontally pushed to the left end of the pre-stretch sliding groove 303, driving the connecting clamping plate 306 to slide to the left, driving the telescopic core rod 304 to elongate to the left, driving the punctum plug 1 to stretch to the left, so that the punctum plug 1 deforms, the diameter becomes smaller and the shape is smooth, the punctum plug 1 is inserted into the intended punctum position, the release shell 201 is pulled to the right to open the fixed rings 204, releasing the punctum plug 1, completing the implantation of the punctum plug 1, and finally the instrument can be withdrawn.

[0046] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A punctum plug implantation device without dilating punctum, comprising a punctum plug (1), characterized in that, The tail of the punctum plug (1) is provided with a release assembly (2), and the inside of the release assembly (2) is slidably connected with an implant body assembly (3).

2. The punctum plug inserter without dilating punctum plug of claim 1, wherein: The release assembly (2) comprises a release shell (201), a release sliding groove (202) is formed in the release shell (201), two connecting claws (203) are symmetrically and fixedly connected to one end of the release shell (201) close to the punctum plug (1), the other ends of the two connecting claws (203) are fixedly connected with a fixing ring (204), the release shell (201), the connecting claws (203) and the fixing ring (204) are an integral structure, and the two fixing rings (204) are clamped with the tail of the punctum plug (1).

3. The punctum plug inserter of claim 2, wherein: The outer wall of the release shell (201) is provided with uneven patterns.

4. The punctum plug inserter of claim 2, wherein: The implant body assembly (3) comprises an implant body (301) slidably connected in the inside of the release shell (201), and a release limiting portion (302) is fixedly connected to the outer wall of the implant body (301), and the release limiting portion (302) is slidably installed in the inside of the release sliding groove (202).

5. The punctum plug inserter of claim 4, wherein: The head of the implant body (301) is in a circular truncated cone structure, and the large-diameter end is in a round corner structure.

6. The punctum plug inserter without dilating punctum plug of claim 5, wherein: The inner walls of the two connecting claws (203) are attached to the round corners of the head of the implant body (301).

7. The punctum plug inserter of claim 6, wherein: The implant body assembly (3) further comprises a pre-stretching sliding groove (303) formed in the implant body (301) and a telescopic core rod (304) arranged in the inside of the implant body (301), the inside of the pre-stretching sliding groove (303) is slidably connected with a pre-stretching button (305), the lower end of the pre-stretching button (305) is fixedly connected with a connecting clamping plate (306), the side of the connecting clamping plate (306) is slidably connected in the inside of the implant body (301), one end of the telescopic core rod (304) penetrates through the connecting clamping plate (306) and is fixedly connected with a telescopic core rod clamping claw (307), and the telescopic core rod clamping claw (307) is fixedly connected with the connecting clamping plate (306).

8. The punctum plug inserter of claim 7, wherein: The other end of the telescopic core rod (304) extends out of the implant body (301) and is inserted into the punctum plug (1).

9. The punctum plug inserter of claim 8, wherein: The tail end of the implant body (301) is fixedly connected with a punctum dilating rod (4).

Images