CN219963179U - Intraocular lens implanter system - Google Patents

Abstract

The utility model discloses an artificial lens implanter system which comprises an introduction head, a pushing cylinder, a pushing rod, a pushing cap and a spring, wherein the introduction head is detachably arranged on the pushing cylinder, the pushing rod stretches into the pushing cylinder, the pushing cap is connected to one end of the pushing rod, the spring is sleeved on the pushing rod, the pushing cylinder is provided with a plurality of clamping grooves which are arranged at intervals, and the clamping grooves are used for installing two or more introduction heads with different structural types. When in use, the folding type leading-in head can be installed, the flat bin type leading-in head can be selectively installed for use, and the intraocular lens loading bracket can be matched for use.

Description

Intraocular lens implanter system

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an intraocular lens implanter system.

Background

Intraocular lenses (IOLs) are a special type of Lens made of synthetic material that is surgically implanted into the eye to replace the delicate optic components of the removed Lens, corresponding to the replacement of a Lens. At present, an artificial lens is implanted into an eye by mainly adopting an injector implantation method, but the injector in the prior art has complicated working procedures and inconvenient operation when installing an introduction head and an artificial lens, and has larger uncertainty factors. If the medical staff performing the operation is less skilled, the operation time is prolonged more likely, and even artificial damage to the intraocular lens is caused. In addition, since the person performing the operation may have different loading states (loading angles, etc.) of the intraocular lens, thereby causing an erroneous operation, and further causing a poor state (in an extreme case, a positive and negative reversal may be caused) to be present after the intraocular lens is pushed into the eye, it is necessary to correct again, and the risk of the operation increases.

In the using process of the intraocular lens implanter, the intraocular lens is firstly installed in the implanter leading-in head, then installed on the implanter complete machine, and then the intraocular lens is injected into the eye in a pushing mode. The types of the leading-in heads of the implanter are mainly divided into a folding leading-in head and a flat bin leading-in head.

The existing patent disclosure and the existing intraocular lens implanters sold in the market are implanters which are only suitable for one type of the introduction heads, namely, the implants suitable for the folding type introduction heads cannot be provided with flat-cabin type introduction heads, and the implants suitable for the flat-cabin type introduction heads cannot be provided with folding type introduction heads.

Disclosure of Invention

The present utility model provides an intraocular lens injector system and an introducer head.

The intraocular lens implanter system of the present utility model comprises an introduction head, a bolus tube, a bolus rod, a bolus cap and a spring.

The artificial lens implanter system has double functions, and the same implanter system can be used for the introduction heads with different characteristics, so that the implantation requirements of different lenses can be met.

The injector system of the utility model comprises a part of the injection cylinder, and has the structural characteristics that two or more than two different structural types of introduction heads can be installed, and more preferably, the injector system not only can be provided with the characteristic structure of the folding type introduction head, but also can be provided with the characteristic structure of the flat bin type introduction head.

The lead-in head forming part of the implanter system of the present utility model is the function of the installation of an intraocular lens. When in use, the intraocular lens is firstly arranged in the introducing head, then the introducing head containing the intraocular lens is arranged in the pushing cylinder, and then the intraocular lens is pushed into the eye through the pushing rod, and the using method is known in the art.

The leading-in head of the implanter system of the utility model can be a folding leading-in head or a flat-cabin leading-in head, and the folding leading-in head and the flat-cabin leading-in head are leading-in heads with two different structural characteristics.

The flat bin type leading-in head is internally provided with a channel, the channel is provided with a leading-in port and a leading-out port, the inner wall of the channel is positioned at the leading-in port and is provided with a guide groove, the width of the guide groove is larger than that of the leading-in port, and the width of the guide groove gradually decreases from the leading-in port to the leading-out port.

In the flat-cabin type leading-in head, the width of the guide groove is gradually reduced from the leading-in opening to the leading-out opening, so that the intraocular lens forms a rolled shape in the channel, and can move in the channel in a required loading state, further, the intraocular lens can smoothly move and push out, and the phenomenon that the intraocular lens is pulled or broken due to excessive extrusion force caused by excessive thrust is avoided. Meanwhile, the guide groove is arranged in the channel of the flat bin leading-in head, so that the reverse placement of the intraocular lens after being implanted into the eye can be avoided, and the operation difficulty is reduced.

In some embodiments, the guide slot is frustoconical.

In some embodiments, the channel comprises a first section and a second section connected with the first section, the first section is communicated with the inlet, the second section is communicated with the outlet, and the width of the first section gradually decreases from the inlet to the outlet.

In certain embodiments, the length of the first section is greater than the length of the second section.

The intraocular lens injector system of the present utility model includes: the introducer head and the bolus rod of any of the embodiments above; the bolus rod is capable of extending into the channel.

In some embodiments, the intraocular lens injector system includes a bolus cartridge coupled to the introducer head, the bolus rod movably mounted within the bolus cartridge, one end of the bolus rod capable of extending out of the bolus cartridge and into the passageway.

In some embodiments, the injection cylinder is formed with an opening through which the injection rod extends, and is further provided with a receiving groove between the opening and the introduction port, the receiving groove being configured to receive a holder containing an intraocular lens, the injection rod being configured to push the intraocular lens in the holder into the channel.

In certain embodiments, the manual injector further comprises an elastic member connecting the injection cylinder and the injection rod, the elastic member being configured to reset a push head of the injection rod into the injection cylinder when the injection rod extends into the channel and external force is unloaded; the elastic member is also used for controlling the injection speed when the injection rod stretches into the channel.

In certain embodiments, the elastic member is sleeved on the injection rod and is positioned in the injection cylinder.

In some embodiments, a bolus cap is mounted to an end of the bolus rod toward the introduction head, the bolus cap diverging toward the end of the introduction head.

The implanter system of the utility model can be used in combination with an intraocular lens packaging holder for achieving a faster intraocular lens installation and injection effect in addition to the rapid installation of the lens in the flat-bed type introducer head when the flat-bed type introducer head is used, and in some embodiments, the packaging holder with the intraocular lens is directly arranged at the rear part of the introducer system introducer head, so that the lens can be directly injected into the eye without taking the intraocular lens out of the lens packaging holder and installing the intraocular lens in the introducer head.

The folding type leading-in head provided by the utility model is provided with at least one structure clamping point capable of enhancing the installation firmness, more preferably two or more structure clamping points, and the problem that the leading-in head is easy to tilt up in the vertical direction after the folding type leading-in head is installed in the current market, so that the problem of unstable pushing injection in the crystal implantation process is solved.

Further, the intraocular lens injector system configuration of the present utility model may further include a push-on cap to further enhance the stability of the injector system during implantation of the lens. In some embodiments, the bolus cap further enhances the stability of the mounting of the flat-bed introducer head in the implanter system, and more preferably, prevents the lens-containing packaging holder from falling out during surgery when the intraocular lens-containing packaging holder is mounted directly in front of the flat-bed introducer head of the implanter system.

The intraocular lens implanter system of the utility model is used for implanting an intraocular lens into an eye, can be used for implanting an intraocular lens for treating cataract, and can also be used for implanting a refractive intraocular lens, and has the characteristics of the intraocular lens and the refractive intraocular lens for treating cataract, which are common knowledge in the field.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an exploded schematic view of an intraocular lens injector system according to a first embodiment of the present utility model;

FIG. 2 is a schematic perspective view of an intraocular lens injector system according to a first embodiment of the present utility model;

FIG. 3 is another schematic perspective view of an intraocular lens injector system according to a first embodiment of the present utility model;

FIG. 4 is a schematic view of an intraocular lens injector system according to a second embodiment of the present utility model;

FIG. 5 is a partial cross-sectional view in the direction A of the intraocular lens injector system of FIG. 4;

FIG. 6 is a full sectional view in the direction A of the intraocular lens injector system of FIG. 4;

FIG. 7 is a schematic illustration of an intraocular lens injector system depicting a second embodiment of the present utility model in an exploded view;

FIG. 8 is a full cross-sectional view of another embodiment of an intraocular lens injector system according to a second embodiment of the present utility model;

FIG. 9 is a schematic view of an assembly of one embodiment of an intraocular lens injector system according to a second embodiment of the present utility model;

FIG. 10 is a schematic view of an assembly of another embodiment of an intraocular lens injector system according to a second embodiment of the present utility model;

FIG. 11 is an exploded schematic view of an intraocular lens injector system according to a third embodiment of the present utility model;

FIG. 12 is a schematic perspective view of an intraocular lens injector system according to a third embodiment of the present utility model;

fig. 13 is another schematic perspective view of an intraocular lens injector system according to a third embodiment of the present utility model.

Description of main reference numerals: intraocular lens injector system 100; an intraocular lens 200; a folding type introduction head 101; a structural reinforcement clip point 1011; a flat-cabin type lead-in head 10; a channel 11; an inlet 110; an outlet 111; a guide groove 113; a first abutment surface 1130; a package holder 300; a first section 115; a second section 117; a bolus stick 20; a bolus cartridge 30; a first rod body 21; a second rod body 23; a reinforcing rib 25; a pushing end 27; a first thrust surface 271; a second thrust surface 31; an opening 33; a receiving groove 35; a card slot 36; an inlet 301; an outlet 302; a clasp 303; an elastic member 40; bolus cap 50.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Example 1:

please refer to fig. 1-3. The intraocular lens injector system 100 of the present embodiment can be used with an injector head having different structural features, and can also be used with a lens packaging holder 300, specifically, the intraocular lens injector system 100 includes an injector head, a push rod 30, a push cap 20, a push cap 50 and a spring 40, the injector head is detachably mounted on the push rod 30, the push rod 20 extends into the push rod 30, the push cap 50 is connected to one end of the push rod 20, and the spring 40 is sleeved on the push rod 20.

The injection cartridge 30 is provided with a plurality of spaced clamping grooves 36, and the clamping grooves 36 are used for installing two or more different types of introduction heads. The introduction heads are a folding type introduction head 101 and a flat bin type introduction head 10, wherein the folding type introduction head 101 is provided with two mutually foldable wings.

In the embodiment of the utility model, the number of the clamping grooves 36 is 3, wherein the clamping grooves 36 at the upper part are used for installing the folding type leading-in head 101, and the clamping grooves 36 at the left side and the right side are used for installing the flat bin type leading-in head 10. It should be noted that the clamping groove 36 can clamp one of the folding type introduction head 101 and the flat-cabin type introduction head 10 only once. Alternatively, different types of lead-in heads may be alternatively snapped into the slot 36.

The folding type introduction head 101 or the flat-chamber type introduction head 10 can be engaged with the head of the cartridge 30. Further, the foldable head 101 includes at least one structure-enhancing clip point 1011, and more preferably includes two or more structure-enhancing clip points 1011, and the structure-enhancing clip points 1011 overcome the problem that the head is easily tilted in the vertical direction after the foldable head 101 is installed in the current market implanter, thereby causing unstable injection during crystal implantation.

In summary, the cartridge 30 of the intraocular lens injector system 100 of the present utility model has structural features that allow for the installation of two or more different types of lead-in heads, more preferably, both the folding type lead-in head 101 and the flat cartridge type lead-in head 10.

The lead-in head forming part of the implant system 100 of the present utility model is the function of installing an intraocular lens. In use, an intraocular lens is first installed in the lead-in head, the lead-in head containing the intraocular lens is then installed in the injection cartridge 30, and the intraocular lens is then inserted into the eye by the injection rod 20.

Example 2:

referring to fig. 4 and 5, the present utility model provides a flat-chamber type introducing head 10 of an intraocular lens injector system 100, wherein the flat-chamber type introducing head 10 is formed with a channel 11, the channel 11 has an introducing port 110 and an introducing port 111, a guiding groove 113 is formed on the inner wall of the channel 11 at the introducing port 110, the width of the guiding groove 113 is larger than the width of the introducing port 110, and the width of the guiding groove 113 gradually decreases from the introducing port 110 to the direction of the introducing port 111.

In the flat-chamber type introducing head 10 of the intraocular lens injector system 100 of the present utility model, by setting the width of the guide groove 113 to be gradually reduced in the direction from the introducing port 110 to the discharging port 111, the intraocular lens 200 is formed in a rolled shape in the channel 11 so as to be able to move in the channel 11 in a desired fitted state, and further, the intraocular lens 200 is able to be smoothly and smoothly moved and pushed out, and the occurrence of a pop or a breakage occurring due to the intraocular lens 200 being subjected to an excessive pressing force caused by an excessive pushing force is avoided. Meanwhile, by arranging the guide groove 113 in the channel 11 of the flat-cabin type leading-in head 10, the reverse placement of the intraocular lens 200 after being implanted in the eye can be avoided, and the operation difficulty is reduced.

Specifically, the channel 11 may be a through hole formed in the axial direction of the flat-chamber type lead-in head 10, the channel 11 may include a lead-in port 110 and a lead-out port 111 in the left-right direction as shown in fig. 5, the radial dimension of the lead-out port 111 (i.e., the up-down direction as shown in fig. 5) is smaller than the radial dimension of the lead-in port 110, one end of the inner wall of the channel 11 near the lead-in port 110 may include a guide groove 113, the radial dimension of the guide groove 113 is larger than the radial dimension of the lead-in port 110, and the radial dimension of the guide groove 113 near the lead-in port 110 is larger than the radial contour dimension of the intraocular lens 200 so that the intraocular lens 200 does not interfere with the guide groove 113 when passing.

At the same time, the radial dimension of the guide groove 113 gradually decreases from the introduction port 110 toward the guide port 111 to form a guide surface in the guide groove 113, and when the radial dimension of the guide groove 113 decreases at least to 1/2 of the maximum radial dimension of the guide groove 113, the radial dimension of the guide groove 113 is smaller than the radial contour dimension of the intraocular lens 200, so that the intraocular lens 200 interferes with the inner wall of the guide groove 113 to form a roll shape when being pushed forward, and when the radial dimension of the guide groove 113 decreases by a minimum value, the radial dimension of the guide groove 113 is larger than the maximum thickness of the intraocular lens 200, but at the same time, the interference amount of the guide groove 113 with the intraocular lens 200 reaches the maximum, and the orientation of the intraocular lens 200 in the channel 11 is fixed to enable the intraocular lens 200 to escape from the introduction port 111 of the flat-chamber type introduction head 10 in a fixed fitted state, thereby completing intraocular lens injection.

Referring to fig. 4 and 5, in some embodiments, the guide groove 113 has a truncated cone shape.

In this way, the intraocular lens 200 can be smoothly and smoothly pushed out in the guide groove 113.

Specifically, the bottom surface of the guide slot 113 may include a first abutment surface 1130, the first abutment surface 1130 being configured to limit the position of the packaging holder 300 near the flat-bed type lead-in head 10 when the intraocular lens 200 is pushed, the packaging holder 300 being configured to mount the intraocular lens 200, the intraocular lens 200 and the packaging holder 300 being in the form of a combination, the embodiment not defining the specific contour shape of the packaging holder 300.

The radial dimension of the guide groove 113 decreases from left to right in the direction of the generatrix, and the radial dimension of the guide groove 113 is smaller than the radial profile dimension of the intraocular lens 200 at least at 1/2 of the axial direction of the generatrix, so that the intraocular lens 200 forms a curl shape when being moved forward by the thrust force.

Referring to fig. 5, in some embodiments, the channel 11 includes a first section 115 and a second section 117 connected to the first section 115, the first section 115 is connected to the inlet 110, the second section 117 is connected to the outlet 111, and the width of the first section 115 gradually decreases from the inlet 110 to the outlet 111.

In this manner, the intraocular lens 200 can be pushed in a rolled shape by the first segment 115, and the intraocular lens 200 can be separated from the exit port 111 of the flat chamber type introduction head 10 by the second segment 117.

Specifically, the first segment 115 may be mutually communicated with the second segment 117, the radial dimensions of the first segment 115 and the second segment 117 are smaller than the radial dimension of the guide groove 113, the first segment 115 is communicated with the introduction port 110, the second segment 117 is communicated with the guide port 111, and the radial dimension of the first segment 115 is gradually reduced from the introduction port 110 to the guide port 111, so that the intraocular lens 200 forms a roll shape through the first segment 115, and can be smoothly separated from the guide port 111 of the flat-cabin type guide head 10 when reaching the second segment 117, thereby completing intraocular injection.

Referring to fig. 5, in some embodiments, the length of first section 115 is greater than the length of second section 117.

In this manner, the intraocular lens 200 is not subjected to excessive compressive forces, avoiding the occurrence of stretch marks or breakage.

Specifically, the radial dimension of first segment 115 gradually decreases, and when the radial dimension of first segment 115 is smaller than the radial profile dimension of intraocular lens 200, intraocular lens 200 interferes with the inner wall surface of guide groove 113 where first segment 115 is located, thereby causing intraocular lens 200 to form a roll-up shape as it passes through first segment 115. The second segment 117 is adjacent to the exit port 111, and the amount of interference between the intraocular lens 200 and the inner wall surface of the flat chamber type introducing head 10 reaches a maximum value when the intraocular lens 200 is pushed into the second segment 117, so that the size of the second segment 117 can be less than or equal to 1/2 of the length of the first segment 115 to avoid the intraocular lens 200 from being subjected to excessive pressing force.

The intraocular lens injector system 100 of the present utility model includes a flat-chamber type lead-in head 10 and a push rod 20 of any of the above embodiments, the push rod 20 being capable of extending into the passageway 11.

In this manner, intraocular lens 200 in channel 11 of flat cartridge type introduction head 10 can be pushed out by push rod 20, thereby completing intraocular lens injection.

Specifically, the injection rod 20 may be disposed at a side far from the outlet 111, the injection rod 20 may extend from the inlet 110 into the channel 11, the injection rod 20 may have a diameter smaller than the inner diameter of the inlet 110, and the injection rod 20 may push the intraocular lens 200 in the package holder 300 to move the intraocular lens 200 in the axial direction (i.e., the left-right direction shown in fig. 5) of the injection rod 20.

Referring to fig. 6-8, in some embodiments, intraocular lens injector system 100 may include a cartridge 30 coupled to a flat-chamber type insertion head 10, a plunger 20 movably mounted within cartridge 30, and an end of plunger 20 capable of extending out of cartridge 30 and into passageway 11.

In this way, the injection cartridge 30 may be disposed on one side of the flat-chamber type introduction head 10, the injection cartridge 30 may be integrally formed with the flat-chamber type introduction head 10, the injection cartridge 30 may be detachably connected to the flat-chamber type introduction head 10, the connection manner may be screw connection or snap connection, etc., and the present utility model is not limited to the connection manner of the injection cartridge 30 and the flat-chamber type introduction head 10. When the cartridge 30 and the flat-cabin type introduction head 10 are detachably connected, the flat-cabin type introduction head 10 can be replaced, and the flat-cabin type introduction head 10 is used in the drawing, and the folding clip type introduction head 101 shown in fig. 3 can be replaced when in use, so that the utility model has good versatility.

The injection cylinder 30 may include a first through hole penetrating the injection cylinder 30 from the injection cylinder 30 in an axial direction, the injection rod 20 is penetrated in the first through hole and extends to the introduction port 110 of the flat cartridge type introduction head 10 by extending out of the first through hole, and the injection rod 20 may include a first rod body 21, a second rod body 23, a reinforcing rib 25, and a pushing end 27. The first rod 21 may be disposed at an end remote from the flat-cabin type introduction head 10, and the second rod 23 may be disposed at an end close to the flat-cabin type introduction head 10. The rib 25 may be integrally formed with the first rod body 21 and protrude from the first rod body 21 in the axial direction of the injection rod 20, and the inner wall surface of the injection cylinder 30 may include a sliding groove (not shown), and the rib 25 and the sliding groove may be in clearance fit, so that the rib 25 may slide in the injection cylinder 30 in the axial direction of the injection rod 20, and the rotation of the injection rod 20 in the injection cylinder 30 is restricted, so as to avoid the breakage of the intraocular lens 200 caused by curling the intraocular lens 200 around the outer circumference of the injection rod 20 when the injection rod 20 pushes the intraocular lens 200.

The pushing end 27 may be disposed near one end of the first rod body 21, an external force is applied to the pushing end 27 to push the injection rod 20 to move axially, the pushing end 27 may include a first thrust surface 271 near one end of the injection cylinder 30, one side of the injection cylinder 30 near the pushing end 27 may include a second thrust surface 31, and the first thrust surface 271 and the second thrust surface 31 cooperate to limit the maximum pushing distance of the injection rod 20 in the channel 11, so as to avoid medical accidents caused by the injection rod 20 extending out of the outlet 111.

Referring to fig. 6 and 7, in some embodiments, a plunger 30 is formed with an opening 33 through which plunger 20 protrudes, and plunger 30 is further provided with a receiving slot 35 between opening 33 and introduction port 110, receiving slot 35 for receiving a package holder 300 containing an intraocular lens 200, plunger 20 being capable of pushing intraocular lens 200 in package holder 300 into passageway 11.

In this manner, the injection rod 20 may push the intraocular lens 200 mounted in the package holder 300 located in the receiving groove 35 into the channel 11 through the opening 33.

Specifically, the opening 33 may be disposed at one end of the injection cartridge 30 axially near the flat-cabin type introducing head 10, the notch of the accommodating groove 35 is used for installing the packaging bracket 300, the bottom of the accommodating groove 35 is used for connecting the injection cartridge 30 and the flat-cabin type introducing head 10, the notch of the accommodating groove 35 is large enough to accommodate the packaging bracket 300, and the utility model is not limited to the structural shape parameters such as the notch of the accommodating groove 35.

The packaging holder 300 may include an inlet 301 and an outlet 302, and the inlet 301 may have an inner diameter equal to the inner diameter of the outlet 302. The inlet 301 may be disposed at an end near the opening 33 and the outlet 302 may be disposed at an end near the introduction port 110. The plunger 20 protrudes from the opening 33 of the plunger 30, further moves in the axial direction of the plunger 30, protrudes from the entrance 301 into the interior of the package holder 300, pushes the intraocular lens 200 located inside the package holder 300, and pushes the intraocular lens 200 axially out of the exit 302 along the package holder 300, whereby the intraocular lens 200 is pushed into the channel 11 via the introduction port 110.

Referring to FIG. 9, in one embodiment, in an initial state, an intraocular lens 200 is loaded into a packaging holder 300 to form a preloaded flat cartridge type introducer 10 assembly. The packaging holder 300 is taken out from the storage box, the packaging holder 300 is rapidly and radially loaded into the accommodating groove 35 of the injector, the end face of the outlet 302 of the packaging holder 300 is contacted with the first supporting surface 1130, the packaging holder 300 can comprise a buckle 303 positioned at the inlet 301, the inner wall surface of the injection cylinder 30, which is close to the inner wall surface of the packaging holder 300, can comprise a clamping groove (not shown), the buckle 303 is buckled with the clamping groove to be fixed, and finally the injection rod 20 is pushed to slowly push out the intraocular lens 200.

Referring to fig. 10, in another embodiment, the intraocular lens 200 is removed from the packaging holder 300 in the holding case with forceps, rapidly loaded radially into the flat-chamber type introducer 10 to form a non-preloaded flat-chamber type introducer 10 assembly, and then the push rod 20 is pushed to slowly push out the intraocular lens.

Referring to fig. 6 and 7, in some embodiments, the manual injector further includes an elastic member 40 connecting the injector cartridge 30 and the injector rod 20, wherein the elastic member 40 is configured to reset the injector head of the injector rod 20 into the injector cartridge 30 when the injector rod 20 is inserted into the channel 11 and the external force is unloaded.

In this manner, spring 40 may be compressed to enable the pusher head of plunger 20 to return to cartridge 30 after the external force is relieved.

In addition, the elastic member 40 can effectively control the pushing speed due to its own elastic property when the pushing rod 20 moves forward, so as to prevent the intraocular lens 200 from being damaged due to too high pushing speed.

Specifically, elastic member 40 resists against the inner wall surface of cartridge 30 adjacent opening 33 when compressed, and the minimum radial dimension of elastic member 40 should be greater than the inner diameter of opening 33 so that elastic member 40 can compress against the inner wall surface of cartridge 30 and avoid damage to IOL 200 caused by the direct contact of IOL 200 with the injection cartridge 30 by extending elastic member 40 out of cartridge 30.

Referring to fig. 6 and 7, in some embodiments, a resilient member 40 is disposed around the plunger 20 and within the barrel 30.

In this way, the plunger 20 may be returned to the cartridge 30 by elastic deformation of the elastic member 40.

The elastic member 40 is sleeved on the second rod body 23 of the injection rod 20, and the diameter of the second rod body 23 sleeved with the elastic member 40 is smaller than the inner diameter of the injection cylinder 30, so that the injection rod 20 can move along the axial direction of the injection cylinder 30.

Referring to fig. 6 and 7, in some embodiments, a bolus cap 50 is mounted to the end of the bolus rod 20 facing the flat cartridge type introduction head 10, and the end of the bolus cap 50 facing the flat cartridge type introduction head 10 is bifurcated.

In this manner, the push rod 20 pushes the intraocular lens 200 through the push cap 50.

Specifically, bolus cap 50 may be mounted to the end of bolus rod 20 adjacent to flat-bed introducer 10 by any detachable connection, and the radial dimension of bolus cap 50 may be smaller than the inner diameter of package holder 300 and the inner diameter of introducer 110. The bifurcated push cap 50 is flexible and easy to install and can interfere with the introduction port 110 when passing through the introduction port 110, so that the bifurcated portions are brought together as much as possible to smoothly push the intraocular lens 200 forward when contacting the intraocular lens 200.

The material of the push cap 50 is silicone rubber or soft plastic.

The pushing rod is installed in the pushing cylinder 30, the pushing rod is pushed to axially displace, so that the pushing cap 50 is in direct contact with the intraocular lens 200, after the intraocular lens 200 in the preassembled or non-preassembled flat-chamber type introducing head 10 component is pushed by the pushing rod, the intraocular lens 200 is pushed to axially displace to the guide groove 113 of the flat-chamber type introducing head 10, and the radial dimension of the guide groove 113 in the direction from the introducing port 110 to the discharging port 111 is gradually reduced, so that the intraocular lens forms a roll-shrinkage shape when being pushed forward, and the intraocular lens 200 is in a required installation state when finally separated from the discharging port 111 of the flat-chamber type introducing head 10, so that intraocular lens injection on the preassembled or non-preassembled injector is smoothly realized. The pushing force of the injection rod is unloaded after the injection is completed, and the injection rod is automatically restored to the original state by the elastic force of the elastic member 40.

Example 3:

referring to fig. 10-13, the intraocular lens injector system 100 of the present embodiment further includes a push-type cap 60, wherein the push-type cap 60 is used to cover the packaging holder 300 to enhance the stability of the intraocular lens injector system 100 during implantation of the lens, and to prevent the packaging holder 300 with the lens from falling out during surgery.

Further, the flat-chamber type lead-in head 10 can be used with an intraocular lens packaging holder 300 to achieve intraocular lens installation-free use.

It should be noted that the features of the above three embodiments may be combined with each other in a suitable manner, for example, the structural features of the flat-cartridge type introduction head 10 in embodiment 2 are applicable to the flat-cartridge type introduction head 10 in embodiment 1, and the features of the flat-cartridge type introduction head 10 are not described in embodiment 1.

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

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

Claims (7)

1. An intraocular lens injector system, wherein the intraocular lens injector system is capable of being used with an injector head having different structural features and is also capable of being used with an lens packaging holder;

the intraocular lens implanter system comprises an introduction head, a pushing injection cylinder, a pushing injection rod, a pushing injection cap and a spring, wherein the introduction head is detachably installed on the pushing injection cylinder, the pushing injection rod stretches into the pushing injection cylinder, the pushing injection cap is connected with one end of the pushing injection rod, the spring is sleeved on the pushing injection rod, the pushing injection cylinder is provided with a plurality of clamping grooves arranged at intervals, and a plurality of clamping grooves are used for installing two or more introduction heads with different structural types.

2. The intraocular lens injector system of claim 1 wherein the injector head is a folding injector head and a flat-cartridge injector head, the folding injector head having two foldable wings.

3. The intraocular lens injector system of claim 2 wherein said folded lead-in head comprises at least one structurally reinforced snap-in point.

4. The intraocular lens injector system of claim 2, wherein the flat-chamber type lead-in head is formed with a channel having a lead-in port and a lead-out port, wherein a guide groove is formed in an inner wall of the channel at the lead-in port, wherein a width of the guide groove is larger than a width of the lead-in port, and wherein a width of the guide groove gradually decreases from the lead-in port toward the lead-out port.

5. The intraocular lens injector system of claim 2 wherein said flat-chamber type lead-in head is adapted for use with an intraocular lens packaging holder to effect installation-free use of the intraocular lens.

6. The intraocular lens injector system of claim 5, further comprising a push-on cap for covering said packaging holder to enhance stability of said intraocular lens injector system during implantation of the lens.

7. The intraocular lens injector system of claim 1, wherein said intraocular lens injector system is used to inject intraocular lenses and refractive intraocular lenses for the treatment of cataracts.