CN211067209U

CN211067209U - Splicing type leading-in head and preassembling implantation system

Info

Publication number: CN211067209U
Application number: CN201921232727.7U
Authority: CN
Inventors: 麻健勇; 冯振宇; 何健
Original assignee: Vision Pro (wuxi) Ltd
Current assignee: Vision Pro (wuxi) Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-07-24
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a leading-in first structural technical field, concretely relates to system is implanted with pre-installation to leading-in head of concatenation formula, the technical problem that aims at solving lies in overcoming the uneven defect of thrust among the prior art, mainly can realize through following technical scheme: comprises a leading-in head body, wherein the leading-in head body comprises an implantation head, an artificial lens bearing part and a loading groove; the splicing head is detachably connected with the leading-in head, a guide groove is formed in the splicing head, the spliced head guides the artificial crystal to deform and enter the leading-in head, the splicing head can guide the artificial crystal to deform completely by adopting the splicing type leading-in head, the direct compression of tweezers in the leading-in head is avoided, and therefore the outer surface is damaged.

Description

Splicing type leading-in head and preassembling implantation system

Technical Field

The utility model relates to a leading-in head structure technical field, concretely relates to leading-in head of concatenation formula, the utility model discloses still relate to a system is implanted in pre-installation.

Background

An intraocular lens is an artificial lens that is surgically placed in the posterior chamber of the eye (between the iris and the anterior surface of the natural lens) to improve the patient's post-operative corrected vision. Intraocular lens forms typically consist of a centrally located circular optic and peripheral haptics. Because the materials for processing the intraocular lens are different, the intraocular lens is divided into a hard intraocular lens of which an optical part is formed of a hard material such as PMMA and a soft intraocular lens of which an optical part is formed of a flexible material such as silicone elastomer, hydrogel, soft acrylate and the like. Intraocular lenses made of soft materials are also often referred to as foldable intraocular lenses.

When a rigid intraocular lens is used, the surgical incision made in the cornea to implant the intraocular lens must be substantially the same width as the diameter of the optical portion. Whereas an intraocular lens made of a soft material, also often referred to as a foldable intraocular lens, can be implanted in the eye through a small incision (typically 2-3 mm) after folding or rolling to reduce its area. The folded or rolled intraocular lens is automatically unfolded after entering the eye.

In order to reduce the risk of infection after implantation surgery and to relieve the patient's pain, it is preferable to implant an intraocular lens from a small incision, so the current trend in implantation surgery is to implant a soft intraocular lens preferentially. Soft foldable intraocular lenses are generally classified into one-piece type and three-piece type in the manner of combining an optical portion and a haptic. A one-piece soft foldable intraocular lens, the optic portion and the haptics of which are integral, are made from the same piece of soft material. The optical part and the support loop of the three-piece soft foldable intraocular lens are processed separately and then combined and connected to form the three-piece soft foldable intraocular lens.

In order to implant a soft intraocular lens into an eye, it is necessary to use a specialized intraocular lens implantation instrument having a lumen design for folding the intraocular lens and an elongated tubular access structure design. By using this special intraocular lens implanting instrument, a soft intraocular lens can be implanted into a human eye through a small incision of less than 3 mm.

Patent CN208838248U discloses an introducer head for a phakic intraocular lens and an implantation device, the introducer head comprising a tubular body having a circumferential side wall, a first end and a second end opposite in the longitudinal direction and a through lumen extending from the first end to the second end in the longitudinal direction, a U-shaped notch being provided in the introducer head, the lens being pushed upwards by the notch to force the lens to bend into the introducer head when implanting an aspherical intraocular lens. It has the following disadvantages: under the condition of uneven thrust action, the notch can extrude the outer surface of the crystal, so that the outer surface is damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the uneven defect of thrust among the prior art to a leading-in head of concatenation formula and prepackage implantation system are provided.

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

a tiled lead-in head comprising:

the artificial lens introducing head comprises an introducing head body, a lens body and a loading groove, wherein the introducing head body comprises an implanting head, an artificial lens bearing part and the loading groove;

the splicing joint is detachably connected with the leading-in head, a guide groove is arranged in the splicing joint, and the splicing joint guides the artificial crystal to deform and enter the leading-in head body.

Furthermore, the implantation head and the artificial lens bearing part are integrally arranged, and a push injection cavity is arranged in the implantation head in a penetrating way.

Further, the loading groove is arranged in the artificial lens bearing part and is in a U-shaped notch shape.

Further, the splice with leading-in head body joint sets up, be provided with the snap ring on the leading-in head body, be provided with the draw-in groove on the splice, the snap ring has the fillet.

Furthermore, a conical inner cavity is arranged in the splicing head, a guide notch is arranged at one end, far away from the leading-in head body, of the splicing head, the guide notches are arranged in an up-and-down symmetrical mode, and the guide notches are U-shaped.

Further, still be provided with the catch bar in the splice, the catch bar is extending structure, the catch bar include both ends with but the fixed plate that the guide notch slided and is connected and the cover is established and is established the splint in the fixed plate, be provided with the groove that slides that supplies the catch bar to slide in the guide notch.

The preassembled implanting system is based on the spliced leading-in head and further comprises a propeller, wherein the propeller comprises a fixed pipe and a pushing part, the pushing part is connected with the fixed pipe, and the pushing part provides driving force for an intraocular lens.

Furthermore, a groove is formed in the fixing pipe, and the groove is matched with the leading-in head body.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a leading-in head structure of concatenation formula through adopting the leading-in head of concatenation formula, and the concatenation head can guide the intraocular lens to warp completely, avoids directly adopting tweezers compression at leading-in head this internal to cause surface damage, the mode of joint makes concatenation head and leading-in head body convenient to use simultaneously, avoids unnecessary fixed operation, thereby reduces operating time and improves operating efficiency.

2. The utility model provides a concatenation formula inlet head structure uses implantation tweezers to promote the push plate in the concatenation head, and the force that the push plate will implant tweezers itself is dispersed at the board body to the application of force is concentrated and the thrust that causes is uneven when avoiding implanting tweezers to use, thereby extrudes important spare part in the intraocular lens, like optical portion or support loop.

3. The utility model provides a system is implanted in pre-installation, with the intraocular lens pre-installation in leading-in head body back rethread propeller implant intraocular lens, can guarantee that the people is carried altogether and turns over a book or curl according to anticipated direction, finally also can launch according to anticipated expansion direction and resume not folding free state simultaneously, the operator's of being convenient for use adjustment improves the security of using.

Drawings

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

Fig. 1 is a schematic overall structural view of a splicing type leading-in head structure provided in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a spliced introducer head structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a splice provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a leading-in head body and a pushing portion according to an embodiment of the present invention.

Description of reference numerals:

1. a lead-in head body; 11. implanting a head; 111. a bolus lumen; 12. an intraocular lens bearing portion; 13. a loading slot; 14. a snap ring; 2. splicing heads; 21. a guide groove; 211. a card slot; 212. a conical lumen; 22. a guide recess; 221. a sliding groove; 23. a push plate; 231. fixing a plate; 232. a splint can be clamped; 3. a propeller; 31. A fixed tube; 311. a groove; 32. a pushing part.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A splicing type leading-in head is disclosed, as shown in figure 1, a leading-in head body 1 comprises an implantation head 11, an artificial lens bearing part 12 and a loading groove 13, a splicing head 2 is detachably connected with the leading-in head, a guide groove 21 is arranged in the splicing head 2, the splicing head 2 guides the artificial lens to deform and enter the leading-in head body 1, one end of the splicing head 2 far away from the leading-in head body 1 is provided with guide notches 22, the guide notches 22 are symmetrically arranged up and down, the guide notches 22 are U-shaped, a pushing plate 23 is further arranged in the splicing head 2, by adopting the splicing type leading-in head, the splicing head 2 can guide the artificial lens to be completely deformed, the direct compression of tweezers in the leading-in head body 1 is avoided, thereby cause the surface damage, the mode of joint makes splice 2 and leading-in head body 1 convenient to use simultaneously, avoids unnecessary fixed operation, thereby reduces operating time and improves operating efficiency.

As shown in fig. 1 and 2, the implantation head 11 and the intraocular lens bearing part 12 are integrally arranged, a push injection cavity 111 is arranged in the implantation head 11 in a penetrating manner, the loading groove 13 is arranged in the intraocular lens bearing part 12, the loading groove 13 is also in a U-shaped notch shape, two sides of the splicing head 2 close to the peripheral wall are provided with guiding grooves 21, a conical inner cavity 212 is formed in an area surrounded by the guiding grooves 21, the guiding notches 22 are symmetrically arranged up and down in the conical inner cavity 212, the conical inner cavity 212 is narrow in front and wide in back, the wide part at the back is the same as the width of the intraocular lens, and the guiding notches 22 are used for the movement of the.

As shown in fig. 2 and 3, a sliding groove 221 for sliding the pushing plate 23 is provided in the guiding recess 22, that is, the guiding groove 21 is provided with the sliding groove 221, and the sliding groove 221 is a gentle curve extending upward, so that the intraocular lens can be bent and folded according to a predetermined track when passing through the splicing head 2.

As shown in fig. 3, the splice 2 is provided with a clamping groove 211, the splice 2 is further provided with a push plate 23, the push plate 23 is of a telescopic structure, the push plate 23 comprises a fixed plate 231 with two ends connected with the guide notch 22 in a sliding manner and a clamping plate 232 sleeved in the fixed plate 231, the clamping plate 232 is used for clamping the implantation forceps for operation, the fixed plate 231 is further provided with a clamping plate for fixing the intraocular lens, the push plate 23 can take out the splice 2 and then fix and clamp the intraocular lens, and then the splice 2 is put in the push plate 23, the push plate 23 disperses the concentrated force of the implantation forceps, so that the uneven thrust caused by concentrated force application when the implantation forceps are used is avoided, thereby extruding important parts in the intraocular lens, such as an optical part or a support loop.

As shown in fig. 4, the preassembly implantation system further comprises a propeller 3, the propeller 3 comprises a fixed tube 31 and a pushing part 32, the fixed tube 31 is used for being held by an operator, the pushing part 32 is connected with the fixed tube 31, the pushing part 32 provides driving force for the intraocular lens, a groove 311 is formed in the fixed tube 31, the groove 311 is matched with the lead-in head body 1, the intraocular lens is implanted into the lead-in head body 1 through the propeller 3 after the intraocular lens is preassembled into the lead-in head body 1, it can be ensured that people turn over or curl in the expected direction on total, meanwhile, the free state of unfolding is finally recovered to be unfolded in the expected unfolding direction, the use adjustment of the operator is facilitated, and the use safety is improved.

The use method of the splicing type leading-in head comprises the following steps: the leading-in head body 1 and the splicing head 2 are fixedly spliced, the clamping ring 14 is matched with the clamping groove 211, the pushing plate 23 in the splicing head 2 is taken out, the pushing plate 23 is fixed with the intraocular lens, the middle of the pushing plate 23 is clamped by the implanting forceps, namely, the clamping plate 232 part can be clamped, the implanting forceps are used for pushing the intraocular lens into the splicing head 2, due to the arrangement of the sliding groove 221, the intraocular lens can be turned over or curled according to the expected direction, and the splicing head 2 is taken down after the intraocular lens is loaded and is fixed with the pushing pipe.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A tiled lead-in head, comprising:

the artificial lens introducing head comprises an introducing head body (1), wherein the introducing head body (1) comprises an implanting head (11), an artificial lens bearing part (12) and a loading groove (13);

the splicing head (2) is detachably connected with the leading-in head body (1), a guide groove (21) is formed in the splicing head (2), and the splicing head (2) guides the artificial lens to deform and enter the leading-in head body (1).

2. The splicing insertion head according to claim 1, wherein the implantation head (11) is integrated with the intraocular lens carrier (12), and a bolus injection cavity (111) is arranged through the implantation head (11).

3. A splicing insertion head according to claim 2, wherein the loading slot (13) is arranged in the intraocular lens carrier (12), the loading slot (13) being U-shaped in the form of a notch.

4. The splicing type leading-in head according to claim 3, characterized in that the splicing head (2) is clamped with the leading-in head body (1), a clamping ring (14) is arranged on the leading-in head body (1), a clamping groove (211) is arranged on the splicing head (2), and the clamping ring (14) has a round angle.

5. The splicing type leading-in head according to claim 4, characterized in that a conical inner cavity (212) is arranged in the splicing head (2), a guiding notch (22) is arranged at one end of the splicing head (2) far away from the leading-in head body (1), the guiding notches (22) are arranged in an up-and-down symmetrical mode, and the guiding notch (22) is U-shaped.

6. The splicing type leading-in head of claim 5, wherein a pushing plate (23) is further arranged in the splicing head (2), the pushing plate (23) is of a telescopic structure, the pushing plate (23) comprises a fixed plate (231) and a clamping plate (232), the two ends of the fixed plate are connected with the guiding recess (22) in a sliding mode, the clamping plate (232) is sleeved in the fixed plate (231), and a sliding groove (221) for the pushing plate (23) to slide is formed in the guiding recess (22).

7. A pre-assembled implant system based on a split introducer according to any of claims 1 to 6, further comprising an advancer (3), wherein the advancer (3) comprises a fixed tube (31) and an advancing portion (32), the advancing portion (32) being connected to the fixed tube (31), the advancing portion (32) providing the driving force for the intraocular lens.

8. The preinstalled implant system as claimed in claim 7, characterized in that the fixing tube (31) is provided with a recess (311), the recess (311) being arranged in cooperation with the introducer body (1).