CN212592567U - Intraocular lens capsular bag injector and intraocular lens capsular bag injector assembly - Google Patents

Abstract

An intraocular lens capsular bag injector and an intraocular lens capsular bag injector assembly. The intraocular lens capsular bag injector comprising: the injector head comprises a first hollow pipe body, and a pipeline in the first hollow pipe body is a first pipeline; the injector holding part comprises a second hollow pipe body, and a pipeline in the second hollow pipe body is a second pipeline; the injector handle comprises a handle rod and an injection core which are connected together; the head part of the injector is connected with the holding part of the injector, the rear end of the first hollow pipe body is connected with the front end of the second hollow pipe body, and the second pipeline is communicated with the first pipeline; the handle is located within the second conduit, the handle being slidable within the second conduit; the push core is located within the second conduit, the push core being movable within the second conduit and the first conduit. The intraocular lens capsular bag injector is for implantation of an intraocular lens capsular bag.

Description

Intraocular lens capsular bag injector and intraocular lens capsular bag injector assembly

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an intraocular lens bag injector and intraocular lens bag injection subassembly.

Background

The lens consists of a lens capsule, a lens epithelium, lens fibers and zonules, wherein the zonules connected with the lens capsule and the iris form a lens-iris separating system together to separate the eyeball into an anterior segment and a posterior segment, and the anterior segment and the posterior segment play important roles in the dissection and physiology of the eyeball.

Ophthalmic lens disease, clinically including: marfan's syndrome, traumatic subluxation and total dislocation of crystalline lens, rupture of lens capsule membrane and injury of suspensory ligament.

These ophthalmic lens diseases can result in defects or even loss of the lens capsule and zonules. Once the capsular sac is defected, the problems that the artificial lens cannot be fixed in the operation or the artificial lens is displaced after the operation and the like are easily caused. The absence of the capsular sac may result in the inability to implant an intraocular lens using conventional in-capsular bag fixation.

SUMMERY OF THE UTILITY MODEL

The utility model provides an artificial lens capsular bag to solve the problem that the artificial lens can not be implanted because of the capsular sac deficiency.

To solve the above problems, the present invention provides an intraocular lens capsular bag comprising: a pouch body that is a flexible, collapsible bag body having a pouch opening; a capsular bag support fixation framework comprising a first memory alloy body and a second memory alloy body; the first memory alloy body and the second memory alloy body penetrate through the bag body; in the implanted state of the IOL capsule, the first and second memory alloy bodies enclose an annular structure within the capsule body for expanding the capsule body to enable loading of the capsule body with an IOL; when the intraocular lens capsular bag is in a push-injection state, the first memory alloy body and the second memory alloy body are straightened into a linear structure, and the capsular bag main body is wound on the linear structure.

Optionally, the oblate spheroid shape of the pouch body is an oblate spheroid shape of the pouch opening.

Optionally, the capsular bag supporting and fixing framework further includes a first fixing wing and a second fixing wing, the first fixing wing is connected to the first ends of the first memory alloy body and the second memory alloy body, and the second fixing wing is connected to the second ends of the first memory alloy body and the second memory alloy body.

Optionally, the intraocular lens capsular bag further comprises a first fixation rod for securing the first fixation wing to the eye and a second fixation rod for securing the second fixation wing to the eye.

Optionally, the first fixing wing has a first through hole, the length of the first fixing rod is greater than that of the first through hole, and the first fixing rod passes through the first through hole and protrudes from the first through hole at two ends; the two ends of the first fixing rod are used for being fixed on the scleral surface or between scleral layers of the eye; the second fixing wing is provided with a second through hole, the length of the second fixing rod is greater than that of the second through hole, the second fixing rod penetrates through the second through hole, and two ends of the second fixing rod protrude out of the second through hole; and two ends of the second fixing rod are used for being fixed on the scleral surface or between scleral layers of the eye.

Optionally, the second fixed wing is further connected with a guide tail rod; or a tail guide pipe is further connected to the second fixed wing.

Optionally, the length of the first fixing wing and the second fixing wing is half of the length of the first fixing rod and the second fixing rod.

Optionally, the first fixing wing, the second fixing wing, the first fixing rod, the second fixing rod and the guide tail rod are made of PMMA.

Optionally, the first memory alloy body and the second memory alloy body are made of a titanium memory alloy.

Optionally, the material of the pouch body is acrylate.

The utility model discloses an intraocular lens bag advantage includes:

1. the artificial lens can be used for implanting the artificial lens, and the problem that the artificial lens cannot be implanted due to the deficiency of the capsular sac is solved;

2. the structure of the artificial lens bag can be used for accommodating various types of artificial lenses, and the artificial lens bag (bag main body) has a regular structure, the bag main body is of an oblate spherical structure with a bag opening, and the bag main body is flexible, so that the position correction of the postoperative artificial lens can be ensured, and the position correction of the postoperative artificial lens can be ensured;

3. due to the structural characteristics, the implant has different states, so that the implant mode is unique, the minimally invasive implant can be realized, only 2 small incisions (for example, 3mm) need to be made on the scleral surface, and the injury is small; meanwhile, suture is avoided, and the use is convenient.

To solve the above problems, the present invention also provides an intraocular lens capsular bag injector, comprising: the injector head comprises a first hollow pipe body, and a pipeline in the first hollow pipe body is a first pipeline; the pushing device comprises a pushing device holding part, a pushing device holding part and a pushing device control part, wherein the pushing device holding part comprises a second hollow pipe body, and a pipeline in the second hollow pipe body is a second pipeline; the device comprises a syringe handle and a syringe core, wherein the syringe handle comprises a handle rod and a syringe core which are connected together; the head part of the injector is connected with the holding part of the injector, the rear end of the first hollow pipe body is connected with the front end of the second hollow pipe body, and the second pipeline is communicated with the first pipeline; the handle is located within the second conduit, the handle being slidable within the second conduit; the push core is located within the second conduit, the push core being movable within the second conduit and the first conduit.

Optionally, the injection core is a solid rod body, or the injection core is an open tube body, or the injection core is a semi-solid rod body with a tube opening at the tail end.

Optionally, the injector head further comprises a guide groove connected to the rear end of the first hollow tube; when the injector head part is connected with the injector holding part, the guide groove is inserted into the second pipeline.

Optionally, the guide groove is a groove body with a semicircular tubular structure.

Optionally, the lateral surface of the guide groove is provided with a pair of connecting wings; the pipe wall of the second hollow pipe body is provided with a connecting groove which is arranged inwards from the end face; when the head part of the injector is connected with the holding part of the injector, the connecting wings are inserted into the connecting grooves.

Optionally, the inner diameter of the second pipeline is equal to the outer diameter of the first hollow pipe body, and when the head of the injector is connected with the injector holding part, the end face of the second hollow pipe body and the connecting wing form a circular step face.

Optionally, the injector grip further includes a pair of gripping wings symmetrically located on the outer sidewall of the second hollow tube.

Optionally, the handle of the injector further comprises a tail plate, and the tail plate is connected to the rear end face of the handle rod.

The utility model discloses an intraocular lens bag injector advantage includes:

1. by adopting a split design, the artificial lens capsular bag in an implanted state can be placed, and the implantation of the corresponding artificial lens capsular bag is conveniently realized;

2. the device can be used for implanting a corresponding intraocular lens capsular bag through a small incision (such as 3mm), the small incision only needs to pass through the head of the injector, and the wound is small and the risk is low;

3. each part has compact structure, convenient use and low manufacturing cost.

In order to solve the above problem, the utility model also provides an intraocular lens bag injection subassembly, include as above intraocular lens bag injector, still include the director, the director includes gripping portion and guiding tube, the guiding tube is connected gripping portion side below. The intraocular lens capsular bag injection assembly further facilitates the intraocular lens capsular bag implantation process.

Drawings

FIG. 1 is a schematic view of an intraocular lens capsular bag provided in accordance with an embodiment of the present invention in an implanted state;

FIG. 2 is a schematic view of the intraocular lens capsular bag of FIG. 1 with the capsular bag body omitted;

FIG. 3 is a schematic view of the intraocular lens capsular bag of FIG. 1 in a first transition state;

FIG. 4 is a schematic view of the intraocular lens capsular bag of FIG. 3 with the capsular bag body omitted;

FIG. 5 is a schematic view of the intraocular lens capsular bag of FIG. 1 in a second transitional state;

FIG. 6 is a schematic view of the intraocular lens capsular bag of FIG. 1 in a bolus state;

FIG. 7 is a schematic side view of the capsular bag body of the intraocular lens capsular bag of FIG. 1;

FIG. 8 is an enlarged schematic view of a first stationary wing in the intraocular lens capsule of FIG. 1;

FIG. 9 is a schematic view of the first securing lever engaged with the first securing wing of FIG. 8;

FIG. 10 is a schematic view of the injector head of an intraocular lens capsule injector provided in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of an intraocular lens capsular bag injector according to an embodiment of the present invention with the injector grip and injector handle connected together;

FIG. 12 is a schematic view of an injector handle of an intraocular lens capsular bag injector provided in accordance with an embodiment of the present invention;

FIG. 13 is an enlarged view of the front portion of the grip of the injector shown in FIG. 11;

FIG. 14 is an assembled schematic view of an intraocular lens capsular bag injector provided in accordance with an embodiment of the present invention;

FIG. 15 is a schematic view of a guide in an intraocular lens capsular bag injector assembly;

FIG. 16 is a schematic view of an intraocular lens capsular bag injector and intraocular lens capsular bag in an intermediate position during implantation of the intraocular lens capsular bag.

Detailed Description

For defects or loss of lens capsule and suspensory ligament, the current clinical solution is to use intraocular lens suture suspension. Disadvantages of this approach include:

(1) not all intraocular lenses of the design type can be suspended by sutures;

(2) in intraocular lens suture suspension, the tension of each intraocular lens loop is difficult to be completely balanced due to the manual fixation of the suture, so intraocular lens deviation is often caused in the operation or after the operation, and the postoperative vision of a patient is affected;

(3) with suture fixation, suture degradation may occur at a long term (more than 10 years indicated by literature) causing intraocular lens displacement or posterior dislocation, requiring a second operation.

In the case of defects in the capsular sac part or broken zonules, another current clinical solution is to implant capsular tension rings, which have the following disadvantages:

(1) this method cannot be used for patients with complete loss of capsular bag;

(2) the implanted capsular bag tension ring still needs to be fixed by the natural lens zonules, but the patient with poor self zonules like Marfan syndrome still has the risk of artificial lens displacement in the long term;

(3) if the improved suturable style capsular bag tension ring is adopted for implantation, because the suturing force is unbalanced, intraocular lens deviation is easy to occur after the operation, and the visual quality of a patient is influenced; and the suture fixing mode is adopted, so that the risk of displacement of the artificial lens-tension ring complex caused by long-term suture degradation exists.

The utility model discloses human analysis, if the defect or disappearance of lens capsule membrane and zonules appears, consider implanting the artificial lens capsular bag. But at present, no intraocular lens capsular bag product is reported clinically.

The utility model discloses an artificial lens bag, which can avoid the suture from being implanted through the sclera incision by minimally invasive (such as 3 mm). The intraocular lens capsular bag implantation process can be matched with a special injector, therefore, the utility model also provides an injector specially used for implanting the intraocular lens capsular bag.

For a clearer illustration, the present invention will be described in detail with reference to the accompanying drawings.

The present invention provides an intraocular lens capsular bag, please refer to fig. 1 to 9.

As shown in fig. 1, the present embodiment provides an intraocular lens capsular bag comprising a capsular bag body 110 and a capsular bag support fixation construct (not integrally labeled).

The pouch body 110 is a flexible foldable bag body having a pouch opening 111.

The fixing structure for supporting the capsular bag includes a first memory alloy body 121 and a second memory alloy body 122. The first and second memory alloy bodies 121 and 122 penetrate the capsule body 110. Both fig. 1 and 3 show the first memory alloy body 121 and the second memory alloy body 122 penetrating the capsule body 110.

FIG. 1 shows the configuration of an intraocular lens capsular bag in an implanted state with the capsular bag body 110 in a naturally unfolded state, which may be used to implant a corresponding intraocular lens.

The first and second memory alloy bodies 121 and 122 within the interior of the capsular bag body 110 enclose an annular structure (the annular structure is not separately labeled, see fig. 2 for corresponding matter) within the capsular bag body 110 for expanding the capsular bag body 110 to enable loading of the capsular bag body 110 with an intraocular lens.

Fig. 2 is a view showing the structure of the capsular bag body 110, i.e., the structure of the capsular bag support and fixation structure alone, and the structure of the capsular bag support and fixation structure in the implanted state (or at the time of completing the manufacturing process from the beginning), which is omitted from fig. 1. As can be seen from FIG. 2, the first memory alloy body 121 and the second memory alloy body 122 enclose the above-mentioned ring-shaped structure. The diameter of the ring-shaped structure is about 10mm, and the ring-shaped structure functions to support the capsular bag body 110. As can be seen from fig. 2, in addition to the first memory alloy body 121 and the second memory alloy body 122 enclosing the middle ring structure, two ends of the first memory alloy body 121 still have a straight rod structure (not labeled) respectively, and two ends of the second memory alloy body 122 still have a straight rod structure (not labeled) respectively, and these straight rod structures may be set to be shorter, for example, 1-2mm, etc.

The straight rod structure makes the cooperation between the first memory alloy body 121 and the second memory alloy body 122 and the pouch body 110, and the cooperation between the first memory alloy body 121 and the second memory alloy body 122 and the fixing wings described later easier. In other embodiments, however, the straight bar structure described above may not be required.

The first memory alloy body 121 and the second memory alloy body 122 are made of memory metal alloy material, and are in a state when the external force is removed, i.e. in a state shown in fig. 2.

FIG. 6 shows the intraocular lens capsular bag in the injected state with the first memory alloy body 121 and the second memory alloy body 122 straightened into a linear configuration and the capsular bag body 110 wrapped around the linear configuration.

Fig. 1 shows the configuration (state) in the implanted state and the configuration of the iol capsule bag manufactured from the beginning, so that the iol capsule bag is completed, and the iol capsule bag needs to be adjusted from the configuration shown in fig. 1 to the configuration shown in fig. 6 in order to realize the subsequent implantation process, and thus, the corresponding processes of fig. 1 to 6 need to be referred to.

Wherein figures 3 and 5 show a first transition state and a second transition state of the capsular bag of the intraocular lens. This is because, as previously mentioned, the present embodiment provides an intraocular lens capsular bag comprising two states, one being a post-implantation deployed state, the implanted state; the other is a bolus state (in which first memory alloy 121 and second memory alloy 122 are straightened and bag body 110 is folded in an umbrella shape and wrapped around first memory alloy 121 and second memory alloy 122). In order to be able to switch between two states, a corresponding intermediate transitional state is also required. Fig. 3 shows the first transition state, i.e., before the implantation state, in which the first and second memory alloy bodies 121 and 122 are straightened, but the capsule body 110 is unfolded, and thus the capsule body 110 is not wrapped around the first and second memory alloy bodies 121 and 122. Fig. 5 shows the capsular bag body 110 in a second transitional state, also prior to implantation, as simply being a double-folded illustration, with the capsular bag body 110 likewise unwrapped from both the first memory alloy body 121 and the second memory alloy body 122. In addition, fig. 4 shows the structure of fig. 3 in the first transition state after the capsule body 110 is removed, and at this time, the first memory alloy body 121 and the second memory alloy body 122 are in a linear structure.

Referring to fig. 7, showing a side view of the capsule body 110, the capsule body 110 is formed as an oblate bag having a capsule opening 111, and as viewed from the side, has a two-sided oblate structure, one of which corresponds to the front side (the central part of which has the capsule opening 111 with a diameter of about 5.5mm, and the capsule opening 111 is used as an intraocular lens implantation hole) shown in fig. 1, and the other of which corresponds to the back side, i.e., the back side of the inner bottom corresponding to the inside of the opening 111 in fig. 1. As can be seen, in the pouch body 110, the side with the opening 111 is the pouch front side, and the side without the hole is the pouch rear side.

In this embodiment, the pouch body 110 is a foldable pouch body, specifically a flexible foldable pouch body. Wherein, the material of the bag body 110 can be acrylate to ensure the corresponding flexibility. The pouch body 110 material may be hydrophilic acrylic or hydrophobic acrylic.

In other embodiments, the capsular bag body 110 may be made of other polymeric materials, so long as the materials are transparent and stable for implantation in the eye.

Referring to fig. 1 to 6, in the present embodiment, the capsular bag supporting and fixing structure further includes a first fixing wing 123 and a second fixing wing 124, the first fixing wing 123 is connected to first ends (not labeled) of the first memory alloy body 121 and the second memory alloy body 122, and the second fixing wing 124 is connected to second ends (not labeled) of the first memory alloy body 121 and the second memory alloy body 122. And, each fixed wing is connected with the end of the straight rod structure of each memory alloy body (when the straight rod structure is not present, the fixed wing is directly connected with the annular structure in fig. 1 and 2).

In this embodiment, fig. 8 shows an enlarged structure of the first stationary blade 123, and the hollow pipe of the first stationary blade 123 is a first through hole 1230. That is, the first stationary wing 123 has a first through hole 1230.

As shown in fig. 9, 9 in conjunction with 8, further showing the IOL capsular bag of this embodiment further includes a first fixation rod 140 and a second fixation rod (the second fixation rod is not shown and reference may be made to first fixation rod 140), the first fixation rod 140 being used to secure first fixation wing 123 to the eye and the second fixation rod being used to secure second fixation wing 124 to the eye.

In this embodiment, the length of the first fixing rod 140 is greater than that of the first through hole, and the first fixing rod 140 passes through the first through hole and has two ends protruding out of the first through hole; both ends of the first fixing rod 140 are fixed to the scleral surface or the scleral layer of the eye.

It should be noted that, although not shown in the drawings, in the present embodiment, the second fixing wing 124 also has a second through hole, the same length of the second fixing rod is greater than the length of the second through hole, the second fixing rod passes through the second through hole and two ends of the second fixing rod protrude out of the second through hole; two ends of the second fixing rod are used for being fixed on the scleral surface or the scleral layer of the eye. That is, the first stationary blade 123 may have a hollow cylindrical shape, and the second stationary blade 124 may have a hollow cylindrical shape.

As can be seen from the above, the two fixed wings of the present embodiment may have the same shape, for example, the fixed wings may be specifically cylindrical hollow cylinders with circular hollow pipes with a diameter of 1 mm.

As can be seen from the above, the first fixing rod 140 and the second fixing rod of the present embodiment may be cylindrical rods with two side cones, and the first fixing rod 140 shown in fig. 9 may have a diameter of 0.9mm and a length (total length) of 4 mm. The fixing rod is designed into a conical cylindrical small rod, so that the fixing rod can be conveniently fixed on the scleral surface or between scleral layers through a hollow pipeline in the center of the fixing wing. In fig. 9, the first fixing rod 140 is shown passing through the first through hole 1230 of the first fixing wing 123 (as shown in fig. 8), and both ends of the first fixing rod 140 are used to fix the corresponding positions on the eye (correspondingly, both ends of the second fixing rod are also used to fix the corresponding positions on the eye), and the fixing rod can be fixed on the corresponding positions on the eye like a nail, so that the whole intraocular lens capsular bag can be fixed on the eye without suture, avoiding suture, and realizing seamless fixation.

In other embodiments, the tapered tip of the fixation rod may be configured to be relatively blunt (not as sharp as in FIG. 9).

In this embodiment, further, the length of the first fixing wing 123 and the second fixing wing 124 may be half of the length of the first fixing rod 140 and the second fixing rod.

In other embodiments, the length of each of the first and second stationary blades 123 and 124 may be 2mm, the cylindrical outer diameter of each of the first and second stationary blades 123 and 124 may be 2mm, and the inner diameter may be 1mm (it should be noted that the scale in the drawings is slightly different from the data listed here.

In this embodiment, the side of the first fixed wing 123 is connected to the first ends of the first memory alloy body 121 and the second memory alloy body 122, and the side of the second fixed wing 124 is connected to the second ends of the first memory alloy body 121 and the second memory alloy body 122.

In other embodiments, the combination of the fixed wing and the fixed rod (small rod) may have other shapes than that shown in fig. 9, such as a cylinder or an obtuse-angle square, and more preferably may have an ergonomic shape conforming to the outer ring shape of an eyeball, which is similar to the shape of an australian boomerang.

It should be noted that, in other embodiments, the shapes of the first fixed wing and the second fixed wing may be modified correspondingly, for example, the two fixed wings may be arrow heads with reverse folding (corresponding fixing rods are not needed in this case), or the fixed wings may be structures with elastic pop-up devices (corresponding fixing rods are not needed in this case), the fixed wings may be expandable spheres (corresponding fixing rods are not needed in this case), and the fixed wings may be fixing caps with hollow spiral, such as square, hexagon, or button with thread (corresponding fixing rods are not needed in this case). It can be known that the connection mode of the fixed wing and the fixed rod can be integrated, and the fixed wing and the fixed rod can be fixed in a reverse folding mode or the tail end of the fixed rod can be expanded and fixed, and the fixed rod can be omitted.

Referring to fig. 1 to 6, in the present embodiment, the second fixed wing 124 is further connected to a guide tail rod 125.

It should be noted that in other embodiments, the second fixed wing may be connected with a tail pipe. The design of the guide tail rod and the guide tail tube is related to the push core of the subsequent injector, please refer to the subsequent content of the description.

In this embodiment, the opposite side of the second fixed wing 124 is connected to the guide tail rod 125, and the diameter of the guide tail rod 125 may be 1mm, and may be 2-20mm in length.

In this embodiment, the first fixing wing 123, the second fixing wing 124, the first fixing bar 140, the second fixing bar, and the guide tail bar 125 may be made of PMMA. That is, in this embodiment, the two side fixing wings and the guide tail rod 125 made of PMMA material are selected, and at the same time, the fixing rod is made of PMMA material. PMMA materials have become well established for use in medical devices.

This embodiment is an intraocular lens capsular bag made using the principle of memory alloys. Memory alloys are generally referred to as Shape Memory Alloys (SMA).

In this embodiment, the memory alloy material and other materials are used to fabricate the iol capsular bag shown in fig. 1, and then the entire capsular bag supporting and fixing structure is first straightened, and then the flexible capsular bag body 110 is wrapped around the folded capsular bag supporting and fixing structure;

since the capsular bag body 110 is made of a polymer film, it has a certain film adhesion effect, especially an acrylate film, and after it is wound around the capsular bag supporting and fixing structure, the intraocular lens capsular bag as a whole can be maintained in the state shown in fig. 6; alternatively, in other cases, in order to ensure that the capsule body 110 remains unreleased as shown in fig. 6, a small amount of viscoelastic may be used to stick the capsule body 110, and the viscoelastic may be removed by suction in the eye during the subsequent operation;

thereafter, by bypassing the corresponding capsule body 110 after the intraocular lens capsule is inserted into the eye, the capsule supporting and fixing structure can be slowly and naturally unfolded due to the "memory" function of the first memory alloy body 121 and the second memory alloy body 122, which can be assisted by a certain external force, to slowly return the iol capsular bag to the shape shown in fig. 1 (which is a gradual process in which the central portion of the capsular bag support and fixation structure is able to retract into the capsular bag body 110), from the state shown in fig. 1, the capsular bag body 110 expands and the portions of the first and second memory alloy bodies 121,122 within the capsular bag body 110 return to an annular configuration (as shown in fig. 2) which maintains the capsular bag body 110 in a stretched, expanded state, thereby allowing the capsular bag body 110 to be used in the subsequent implantation of various types of prior intraocular lenses.

In this embodiment, the first memory alloy body 121 and the second memory alloy body 122 may be made of a titanium memory alloy, i.e. they may be made of a titanium alloy memory material.

In the basic structure in which the first memory alloy body 121 and the second memory alloy body 122 penetrate the capsule body 110, when the first memory alloy body 121 and the second memory alloy body 122 are drawn into linear shapes, the planes of the two linear shapes are parallel to the capsule opening 111, that is, the first memory alloy body 121 and the second memory alloy body 122 penetrate the capsule body 110 in the direction parallel to the plane of the capsule opening 111.

It should be noted that the ring body (annular structure) surrounded by the first memory alloy body 121 and the second memory alloy body 122 has corresponding through holes (not shown) passing through the part of the capsule body 110, but the through holes are fixed-size holes, i.e. holes through which the first memory alloy body 121 and the second memory alloy body 122 pass when passing through the capsule body 110. The through holes are not fixed relative to the first memory alloy 121 and the second memory alloy 122, so that the first memory alloy 121 and the second memory alloy 122 can move back and forth for a certain distance from the through holes, and the first memory alloy 121 and the second memory alloy 122 can change structures to realize different states. For example, in the implanted state, the turning portions of the first memory alloy body 121 and the second memory alloy body 122 (the turning portions are the connecting positions of the straight rod structure and the annular structure) are just located in the through holes, so as to position the capsule body 110 after the annular structure is restored, thereby righting the capsule body 110. Accordingly, when the first memory alloy body 121 and the second memory alloy body 122 are straightened to be in a linear state, more parts of them are exposed outside the through holes.

The embodiment of the utility model provides an artificial lens capsular bag can be used for replacing natural lens capsular bag to be used for resumeing the dissection structure that the lens iris separates, solve the unable intraocular lens's of implanting problem that the capsular sac disappearance leads to.

The embodiment of the utility model provides an intraocular lens bag can be used for packing into the intraocular lens of various different grade types, can assist the posterior chamber type intraocular lens of implanting present all design types. Furthermore, with the embodiment of the present invention, since the intraocular lens capsular bag (capsular bag main body 110) itself has a regular structure, the capsular bag main body 110 has a regular open oblate spheroid structure, and the capsular bag main body 110 is flexible, the position of the intraocular lens after operation can be ensured to be correct.

The intraocular lens capsular bag provided by the embodiment of the utility model has different states due to the structural characteristics, so that the implantation mode (please refer to the subsequent content of the specification) is unique, thereby realizing the minimally invasive operation, only needing to make 2 small incisions (such as 3mm) on the scleral surface and causing little damage; meanwhile, suture is avoided, and the use is convenient.

The embodiment of the utility model provides a various materials that use, it is good with the human body compatibility, the nothing is rejected, and the security is high. The corresponding production materials are the existing mature materials, have been clinically applied for a long time, can be used for the lifetime, and do not need to be replaced.

The embodiment of the utility model provides an intraocular lens bag injector is still provided.

Referring to fig. 10 to 14 in combination, the intraocular lens capsular bag injector comprises:

an injector head (not labeled), as shown in fig. 10, the injector head includes a first hollow tube 211, and a first tube (not labeled) is a tube inside the first hollow tube 211;

an injector holding portion (not labeled), as shown in fig. 11, the injector holding portion includes a second hollow tube 221, and a pipe inside the second hollow tube 221 is a second pipe (not labeled);

an injector handle (not labeled), as in fig. 11 and 12, comprising a handle 231 and a bolus 232 coupled together;

the head part of the injector is connected with the holding part of the injector, as shown in fig. 14, the rear end of the first hollow tube body 211 is connected with the front end of the second hollow tube body 221, and the second pipeline is communicated with the first pipeline;

the stem 231 is located within the second duct, the stem 231 being slidable within the second duct;

the bolus 232 is located within the second conduit, and the bolus 232 is movable within the second conduit and the first conduit.

Fig. 14 shows the intraocular lens capsular bag injector assembled together as a schematic view, where it can be seen that the injector head is located at the foremost end, the injector holding portion is located in the middle, the injector handle is located at the rearmost end, and a part of the injector handle extends into the injector holding portion (in this embodiment, the front position is close to the eyes during the operation, and the rear position is away from the eyes during the operation).

Fig. 12 further shows that the handle 231 and the bolus 232 are generally coupled together in a front-to-back manner, with the bolus 232 extending forwardly along the front face of the handle 231.

In this embodiment, inject core 232 and be the opening body, it is corresponding, at this moment, the second stationary vane 124 of the aforesaid embodiment links to each other with guide tail rod 125, like this, inject core 232 just can cooperate with guide tail rod 125, insert through guide tail rod 125 and inject core 232 (opening body) to can better utilize intraocular lens bag injector to inject intraocular lens bag.

In other embodiments, the bolus may also be a solid shaft or a semi-solid shaft with a nozzle at the end. Specifically, when the second fixed wing of the foregoing embodiment is connected with a tail guiding tube, the bolus injection core may be a solid rod body; when the second fixed wing of the previous embodiment is connected with a guide tail rod, the bolus injection core can also be a semi-solid rod body with a nozzle.

Referring back to fig. 10, the injector head further includes a guide slot 212, and the guide slot 212 is connected to the rear end of the first hollow tube 211. When the injector head portion and the injector grip portion are connected, the guide groove 212 is inserted into the second tube.

Referring back to fig. 10, the side of the guiding groove 212 of the present embodiment has a pair of connecting wings 213. The wall of the second hollow tube 221 has a connecting groove 223 (see fig. 13) opening inwardly from the end face. When the injector head portion and the injector grip portion are coupled, the coupling wing 213 is inserted into the coupling groove 223.

It should be noted that, in the present embodiment, the guiding groove 212 is a groove body, but the connecting groove 223 is a groove space.

Fig. 13 is an enlarged view of the front end portion of the second hollow tube 221 in the structure shown in fig. 11.

It should be noted that fig. 13 shows that the connecting groove 223 does not penetrate through the entire wall of the second hollow tube 221 in this embodiment. However, in other embodiments of the present invention, the connecting groove may extend through the wall of the second hollow pipe from the inside to the outside.

In this embodiment, the inner diameter of the second pipeline is equal to the outer diameter of the first hollow tube 211 (obviously, the outer diameter of the second hollow tube 221 is larger than the outer diameter of the first hollow tube 211), and when the injector head portion and the injector grip portion are connected, the end surface (front end surface) of the second hollow tube 221 and the connecting wing 213 form a circular step surface. The circular ring-shaped step surface is a position which can prevent the holding part of the injection device from entering the corresponding operation wound.

The injector head part and the injector holding part are prevented from being separated in the using process by fully utilizing the annular step surface. In particular, since the coupling wing 213 is inserted into the circular step formed in the coupling groove 223, if glue is applied to the circular step, or a fixing ring is provided (the fixing ring can be hung on the grasping wing 222 through another structure), the coupling wing 213 is prevented from being released from the coupling groove 223 during use, i.e., the head portion and the grip portion of the injector are prevented from being released. When the head part of the injector and the holding part of the injector need to be separated, the corresponding anti-falling function is released in a way of removing glue or a fixing ring.

In this embodiment, the injector grip further includes a pair of gripping wings 222, and the gripping wings 222 are symmetrically disposed on the outer sidewall of the second hollow tube 221.

In this embodiment, the handle of the injector further includes a tail plate 233, and the tail plate 233 is connected to the rear end surface of the handle 231. The tail plate 233 increases the area of the tail of the handle of the injector, making the injector more comfortable to use.

In this embodiment, the injector head may specifically include a first hollow tube 211 (a hollow cylinder, the inside is the first pipeline) with a diameter of 2mm, and the length of the first hollow tube 211 may be 20 mm. The first conduit may also be referred to as a guide conduit.

In this embodiment, the first hollow tube 211 is connected to a guiding groove 212, and the groove body of the guiding groove 212 may be connected to the first hollow tube 211 and integrally formed therewith.

In this embodiment, the guiding groove 212 is a groove body having a semicircular tubular structure. I.e., the guide groove 212 may be embodied as a semi-circular tube-shaped structure (semi-hollow cylinder) with the side bottom facing upward, as shown in fig. 10, the guide groove 212 may accommodate an intraocular lens capsule (see the corresponding description of the previous embodiment), only the tail rod 125 of which is shown in fig. 10, and the remaining portion of the intraocular lens capsule already inserted into the first conduit of the first hollow tube 211 in the implanted state.

The length of the guide groove 212 may be 20mm, and the length of the guide groove 212 may be substantially equal to the length of the intraocular lens capsule when the first memory alloy body 121 and the second memory alloy body 122 are linear, or slightly less than the length of the first memory alloy body 121 and the second memory alloy body 122 when they are linear. The radius of the guide groove 212 may be 1mm (i.e. the diameter is also 2 mm).

The length of the first pipe, i.e. the length of the first hollow pipe 211, may be equal to the length of the first memory alloy body 121 and the second memory alloy body 122 when they are linear, or slightly greater than the length of the first memory alloy body 121 and the second memory alloy body 122 when they are linear.

In this embodiment, the guide groove 212 is connected to the pair of connecting wings 213 symmetrically on both sides, and the connecting wings 213 may have a rectangular parallelepiped structure, a length of 15mm, a width of 10mm, and a thickness of 2mm (it should be noted that they are not shown in the drawings in corresponding size scales).

The material of each part of the intraocular lens capsular bag injector provided by the embodiment can be selected from medical PVC material resistant to high temperature and high pressure.

The embodiment of the utility model provides an intraocular lens bag injector adopts split type design, can place the intraocular lens bag of implantation state, realizes that corresponding intraocular lens bag implants.

The embodiment of the utility model provides an intraocular lens bag injector, because split type design, injector head can design lessly, consequently can utilize in implanting corresponding intraocular lens bag through little incision (as 3mm), and little incision only needs to be able to pass through injector head, and the wound is little, and the risk is little.

The embodiment of the utility model provides an intraocular lens bag injector, each part constitutes compact structure, convenient to use, the cost of manufacture is low.

The embodiment of the utility model provides an intraocular lens bag injector's overall structure can adopt the PVC material, and the material is ripe, but high temperature autoclaving, and production is convenient.

The embodiment of the utility model provides an intraocular lens bag injector, it is pushed power structure (injector handle) and also can integrated into one piece, implants smoothly, promotes the convenience.

The embodiment of the utility model provides an intraocular lens bag injector, design cavity injection pipe (injector hold portion link up with injector head portion, and injector head portion can be brought guide tail rod 125 on the intraocular lens bag body into completely, also can expose guide tail rod 125 at guiding groove 212 earlier, when follow-up promotion again, and is stable convenient.

The embodiment of the utility model provides an intraocular lens bag injector has the injector head portion that is the integral type, has first cavity body 211 and guiding groove 212 (acceptor groove) of integral type structure promptly, and injector head portion main part length can be greater than 15mm (the length of first cavity body 211 is greater than 15mm promptly), makes things convenient for whole eyeball that pierces through.

The embodiment of the utility model provides a subassembly is injected to intraocular lens bag still is provided.

Referring to fig. 15, the injection assembly includes the intraocular lens capsular bag injector provided in the foregoing embodiments, and further includes a guide (not labeled).

The guide includes a grip 311 and a guide tube 312, and the guide tube 312 is connected below the side of the grip 311. Wherein the orifice of the guide tube 312 is a beveled orifice that helps to perform the function of the guide.

The guide grip 311 may be a rectangular parallelepiped structure, and may have a length of 5mm, a width of 5mm, and a height of 10 mm. The grip portion 311 has a hollow tube cylindrical structure with a slope near the bottom surface, i.e. a guide tube 312, the tube diameter of the guide tube 312 may be 2.5mm, so that a 2mm diameter injector head (corresponding to the previous embodiment) may be sleeved, and the guide tube 312 may have an appearance of 3mm and a length of 10 mm.

The material of each part of the guide provided by the embodiment can also be selected from medical PVC material resistant to high temperature and high pressure.

In summary, the intraocular lens capsular bag injecting assembly provided by the present embodiment has a guide in addition to the intraocular lens capsular bag injector, and the guide can make the actual operation more simple and convenient, please refer to the following contents of the present specification.

In summary, the present invention provides intraocular lens capsular bag and intraocular lens capsular bag injector, and further provides an intraocular lens capsular bag injector assembly with an intraocular lens capsular bag injector and a guide.

Referring to fig. 1-16, the implantation of the iol capsule of the present invention is accomplished by using the iol capsule injection assembly of the present invention (including the iol capsule injector and the introducer), which may be as follows:

the bulbar conjunctiva is cut at the 10:00 and 4:00 positions of the cornea of the eye, a rectangular scleral flap with the thickness of 3mm multiplied by 4mm can be made, the thickness of the flap is about 1/2-1/3 mm:

making a transparent cornea auxiliary incision by using a 3mm sclera puncture knife, and injecting viscoelastic into the anterior chamber to support the anterior chamber by using the viscoelastic;

puncturing the sclera by using a 3mm sclera puncturing knife under the scleral flap or 1-2mm parallel to the iris direction behind the scleral surface corneal limbus to form two corresponding sclera implanting ports with the length of 3 mm;

the IOL capsule is removed (in a push-injection configuration after removal, as shown in FIG. 6), placed in the channel 212 of the IOL capsule injector, and the entire IOL capsule is pre-inserted into the first hollow tube 211 along the channel 212, leaving only the trailing guide rod 125 at the trailing end, as shown in FIG. 10;

the hollow injection tube (i.e. the injection core 232) of the injector handle is inserted in alignment with the guide tail rod 125, the injector head is connected with the injector grip and the injector handle, and is embedded into the connecting groove 223 of the injector grip through the connecting wing 213 of the injector head and fixed to form an injectable state, as shown in fig. 14;

the right hand intraocular lens capsular bag injector is held right side up, inserted into the injector head from the 10:00 scleral insertion port, inserted into the introducer of the intraocular lens capsular bag injector assembly from the 4:00 scleral insertion port (see fig. 15), guided by the introducer in the pupillary region of the eye to exit the scleral surface from the 4:00 scleral insertion port, and pushed slightly on the injector handle to push the first retainer wing 123 of the intraocular lens capsular bag out of the injector head, as shown in fig. 16 (eye not shown), as well as showing in fig. 16 that a portion of the first memory alloy body 121, the second memory alloy body 122, and the capsular bag body 110 have been pushed out of the injector head;

the left-handed micro-toothless forceps may be used to clamp the first fixing rod 140 through the first through hole 1230 of the first fixing wing 123 (refer to the above corresponding contents) in the state shown in fig. 16 (or in the state of the previous period, that is, only when the first fixing wing 123 is pushed out), and the first fixing wing 123 is located at the midpoint of the first fixing rod 140, and the first fixing rod 140 and the first fixing wing 123 are located outside the scleral surface together;

then, the whole injector is retracted, and the injector handle is pushed, so that the intraocular lens capsular bag is implanted into the eye;

from 10:00 the sclera implantation opening is withdrawn from the head of the injector, the second fixed wing 124 and the guide tail rod 125 are left outside the sclera, then a left-handed micro-toothless forceps can be used for clamping a second fixed rod (not shown) to pass through a second through hole (hollow tube) of the second fixed wing 124, the second fixed wing 124 is positioned at the midpoint of the second fixed rod, and the second fixed rod and the second fixed wing 124 are positioned outside the other position of the scleral surface together;

lifting the folded capsular body 110 with microintraocular forceps from the limbal auxiliary incision to restore the memory metal to the annular configuration (i.e. the first memory alloy body 121 and the second memory alloy body 122 to the annular configuration) and to support the entire capsular body 110 to unfold, as the memory metal restores the annular configuration, both fixation wings will slowly approach the sclera (especially the second fixation wing 124 approaches the sclera), and when the annular configuration of the final form is formed, the second fixation wing 124 clamps the outer surface of the sclera by means of the second fixation rod combination to realize the corresponding fixation;

then, whether the position of the bag of the artificial lens is normal or not can be checked, and if the position of the bag of the artificial lens is not normal, the adjustment is continued; when the position is confirmed, the outside of the second fixed wing 124 can be clipped by using a microscope to cut the guide tail rod 125;

the sclera flap is reset, the sclera flap is sutured or the sclera puncture is sutured to prevent the eyeball from leaking, the conjunctival incision is closed, then almost any type of existing posterior chamber type artificial lens can be implanted from the corneal limbus incision according to the normal artificial lens implantation mode, the artificial lens is placed through the opening 111 on the front surface of the bag main body 110, the artificial lens can be fixed on the eye through the artificial lens bag of the embodiment, then the ia head (automatic injection and suction needle head) or the manual injection and suction head can be adopted to suck the viscoelastic agent in the eye (if the bag main body 110 uses the corresponding viscoelastic agent, the viscoelastic agent can be sucked and removed at the same time);

thereafter, the incision can be sealed watertight to complete the procedure.

It should be noted that, in other surgical methods, the scleral flap may not be made, and only a scleral incision may be made instead of the scleral flap.

The utility model provides an artificial lens capsular bag, which can be matched into a group and can have 8-11 different specifications to meet the requirements of adults and children. Correspondingly, the intraocular lens capsular bag injector can also have different specifications of 8-11, and the intraocular lens capsular bag injector component can also have different specifications of 8-11 correspondingly.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. An intraocular lens capsular bag injector, comprising:

the injector head comprises a first hollow pipe body, and a pipeline in the first hollow pipe body is a first pipeline;

the pushing device comprises a pushing device holding part, a pushing device holding part and a pushing device control part, wherein the pushing device holding part comprises a second hollow pipe body, and a pipeline in the second hollow pipe body is a second pipeline;

the device comprises a syringe handle and a syringe core, wherein the syringe handle comprises a handle rod and a syringe core which are connected together;

the head part of the injector is connected with the holding part of the injector, the rear end of the first hollow pipe body is connected with the front end of the second hollow pipe body, and the second pipeline is communicated with the first pipeline;

the handle is located within the second conduit, the handle being slidable within the second conduit;

the push core is located within the second conduit, the push core being movable within the second conduit and the first conduit.

2. The intraocular lens capsular bag injector of claim 1, wherein said injection core is a solid rod, or said injection core is an open tube, or said injection core is a semi-solid rod with a nozzle at a distal end.

3. The intraocular lens capsular bag injector of claim 1 or 2, wherein said injector head further comprises a guide slot connected to a rear end of said first hollow tube; when the injector head part is connected with the injector holding part, the guide groove is inserted into the second pipeline.

4. The intraocular lens capsular bag injector of claim 3, wherein said guide groove is a slot of semi-circular tubular configuration.

5. The intraocular lens capsular bag injector of claim 3, wherein:

the side surface of the guide groove is provided with a pair of connecting wings;

the pipe wall of the second hollow pipe body is provided with a connecting groove which is arranged inwards from the end face;

when the head part of the injector is connected with the holding part of the injector, the connecting wings are inserted into the connecting grooves.

6. The intraocular lens capsular bag injector of claim 5, wherein an inner diameter of said second conduit is equal to an outer diameter of said first hollow tube, and wherein an end surface of said second hollow tube forms an annular step surface with said coupling wings when said injector head portion is coupled to said injector grip portion.

7. The intraocular lens capsular bag injector of claim 1, wherein said injector grip further comprises a pair of gripping wings symmetrically disposed on the second hollow tube outer sidewall.

8. The intraocular lens capsular bag injector of claim 1, wherein the injector handle further comprises a tail plate connected to the stem rear end face.

9. An intraocular lens capsular bag injector assembly comprising an intraocular lens capsular bag injector according to any of claims 1 to 8, further comprising a guide comprising a grip portion and a guide tube connected below the side of the grip portion.

10. The intraocular lens capsular bag bolus assembly of claim 9 wherein the orifice of the guide tube is a beveled orifice.

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