Implant device, implant system and method of using an implant system

Abstract

The application belongs to the technical field of medical treatment, and particularly relates to an implant device, an implant system and a method for using the implant system. The application discloses an implant device for implanting an implant, the implant device comprising a shell and an observation tube, the observation tube being fixedly connected with the shell, the observation tube being arranged to extend along a first direction, the observation tube comprising a tube body and elastic clamping pieces connected with each other, the tube body being enclosed to form a cavity, the cavity being used for accommodating the implant, at least part of the elastic clamping pieces being located in the cavity, at least two elastic clamping pieces being enclosed to form a first opening, a diameter of the first opening being smaller than a diameter of the implant when no external force is applied, and the elastic clamping pieces being configured to increase the diameter of the first opening when extruded by the external force.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical treatment, and particularly relates to an implant device, an implant system and a method for using the implant system. BACKGROUND

[0002] Glaucoma is one of the three major blinding eye diseases that cause human blindness, with an overall population incidence rate of 1% and an incidence rate of 2% after the age of 45. Glaucoma is a group of diseases characterized by optic disc atrophy and depression, visual field defects and visual acuity decline. Pathological intraocular pressure increase and insufficient blood supply to the optic nerve are primary risk factors for the onset of the disease, and the tolerance of the optic nerve to pressure damage is also related to the occurrence and development of glaucoma. Obstruction of any link in the aqueous humor circulation pathway can lead to pathological changes caused by elevated intraocular pressure, but some patients also present normal tension glaucoma.

[0003] At present, the commonly used treatment methods for glaucoma include drug therapy, laser trabeculoplasty, trabeculectomy, etc. In the case where other treatment methods are ineffective, the intraocular drainage implant method is the most commonly used method, which allows aqueous humor to be discharged and exit the anterior chamber through the drainage path on the implant stent by inserting the implant stent into the eye. This method is usually performed by a doctor manually implanting the implant stent into the Schlemm's canal, and this implantation method has the problems of inaccurate positioning and poor implantation effect. SUMMARY

[0004] The embodiments of the present application provide an implant device, which can realize accurate pushing of an implant.

[0005] The embodiments of the present application provide an implant device for implanting an implant. The implant device comprises a shell and an observation tube. The observation tube is fixedly connected with the shell. The observation tube is arranged to extend along a first direction. The observation tube comprises a tube body and an elastic clamping part connected with each other. The tube body encloses a cavity. The cavity is used for accommodating the implant. At least part of the elastic clamping part is located in the cavity. At least two elastic clamping parts enclose a first opening. The diameter of the first opening is smaller than the diameter of the implant when the first opening is not subjected to external force. The elastic clamping part is configured to increase the diameter of the first opening when subjected to external force.

[0006] According to the embodiments of the first aspect of the present application, the elastic clamping part comprises a first connecting portion and a protruding portion. The first connecting portion is connected with the tube body. The protruding portion is arranged to gradually protrude into the cavity along the first direction.

[0007] According to the embodiments of the first aspect of the present application, the elastic clamping part further comprises a second connecting portion. The protruding portion is located between the first connecting portion and the second connecting portion. The second connecting portion is connected with the tube body.

[0008] According to the embodiment of the first aspect of the present application, the pushing mechanism is movably arranged with the shell in the first direction, and a limiting cavity is formed between the pushing mechanism and the elastic clamping piece, which can accommodate at least one implant.

[0009] According to the embodiment of the first aspect of the present application, the inner needle is connected with the shell, at least one implant is sleeved on the inner needle, and at least part of the inner needle is located in the cavity; the driving mechanism is movably arranged with the shell and connected with the pushing mechanism; the pushing mechanism comprises a pushing needle sleeved on the inner needle, the pushing needle is movably arranged with the inner needle in the first direction, and the pushing needle is provided with a second opening at one end in the first direction; a pushing needle seat is connected with the end of the pushing needle away from the second opening; and a first elastic piece is connected between the pushing needle seat and the shell, and is used to drive the pushing needle seat and the pushing needle to move in a second direction until the pushing needle seat is connected with the driving mechanism, the second direction being opposite to the first direction.

[0010] According to the embodiment of the first aspect of the present application, the end of the pushing needle away from the pushing needle seat is provided with elastic claws, the second opening is formed between the elastic claws, and the inner diameter of the opening gradually increases in the direction close to the pushing needle seat in the second direction.

[0011] According to the embodiment of the first aspect of the present application, the implant device comprises a triggered state and a non-triggered state, the triggered state comprises a first stage and a second stage; the driving mechanism comprises a cam, the cam is provided with a first driving surface and a second driving surface connected with each other, and the cam is configured to rotate in a third direction in the triggered state, in the first stage, the first driving surface drives the pushing mechanism and the implant to move in the first direction, and in the second stage, the second driving surface drives the pushing mechanism to move in the second direction; the first driving surface gradually extends away from the rotation axis of the cam in the third direction, and the second driving surface gradually extends close to the rotation axis of the cam in the third direction.

[0012] According to the embodiment of the first aspect of the present application, the cam is further provided with a first step surface and a second step surface, the first step surface is connected with the first driving surface, the second step surface is connected with the second driving surface, the first step surface is located on the side away from the second driving surface of the first driving surface, the second step surface is located on the side away from the first driving surface of the second driving surface, and the distance from the first step surface to the rotation axis of the cam is greater than the distance from the second step surface to the rotation axis of the cam.

[0013] According to the embodiment of the first aspect of the present application, the cam is further provided with a third driving surface, a fourth driving surface and a third step surface connected in sequence, the third driving surface is connected with the second step surface, the third driving surface is located on the side away from the second driving surface of the second step surface, the distance from the second step surface to the rotation axis of the cam is greater than the distance from the third step surface to the rotation axis of the cam; the third driving surface gradually extends away from the rotation axis of the cam in the third direction, and the fourth driving surface gradually extends close to the rotation axis of the cam in the third direction.

[0014] According to the embodiment of the first aspect of the application, the trigger button comprises a key and a connecting rod, the key is movably arranged on the shell, and the connecting rod connects the key and the cam, the connecting rod is configured to limit the rotation of the cam in the third direction in the non-trigger state, and the key drives the connecting rod to move in the fourth direction and releases the cam in the trigger state.

[0015] According to the embodiment of the first aspect of the application, the cam is provided with a limiting block, and the connecting rod is provided with a limiting part, the limiting part is configured to abut against the limiting block in the non-trigger state, thereby limiting the rotation of the cam in the third direction, and the limiting part releases the limiting block in the trigger state, thereby rotating the cam in the third direction.

[0016] According to the embodiment of the first aspect of the application, a plurality of limiting blocks are arranged at intervals around the rotation shaft of the cam.

[0017] According to the embodiment of the first aspect of the application, the side of the observation tube away from the shell is provided with an observation window.

[0018] On the other hand, the embodiments of the application also provide an implant system comprising the implant device and the implant as described above.

[0019] On the other hand, the embodiments of the application also provide a use method of an implant system, the implant device comprising an observation tube, a driving mechanism, a pushing mechanism and a trigger button, the observation tube being arranged to extend in the first direction, the observation tube comprising a tube body and elastic clamping parts connected to each other, the tube body being enclosed to form a cavity, at least two elastic clamping parts being enclosed to form a first opening, and the pushing mechanism and the elastic clamping parts forming a limiting cavity therebetween; the use method comprising: inserting the implant system into the eye of a patient; pressing the trigger button, the trigger button driving the pushing mechanism and the implant in the limiting cavity to move in the first direction through the driving mechanism until the implant extends out of the cavity from the first opening; and driving the pushing mechanism to move in the second direction through the driving mechanism.

[0020] The implant device of the embodiments of the application is used for implanting an implant, and comprises a shell and an observation tube, the observation tube being fixedly connected to the shell, the observation tube being arranged to extend in the first direction, the observation tube comprising a tube body and elastic clamping parts connected to each other, the tube body being enclosed to form a cavity, the cavity being used for accommodating the implant, at least part of the elastic clamping parts being located in the cavity, and at least two elastic clamping parts being enclosed to form a first opening, the diameter of the first opening being smaller than the diameter of the implant when the first opening is not subjected to external force, the elastic clamping parts being configured to increase the diameter of the first opening when subjected to external force, the first opening not affecting the implantation of the implant, the first opening being capable of reducing the probability of the implant falling out of the cavity when the implant device is moved or inverted, and improving the reliability of the implant device. BRIEF DESCRIPTION OF DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of an implantation device according to some embodiments of this application;

[0023] Figure 2 An example is shown. Figure 1 A schematic diagram of the exploded structure of the implanted device;

[0024] Figure 3 An example is shown. Figure 1 A partially enlarged cross-sectional view of the implanted device and implant at position A;

[0025] Figure 4 An example is shown. Figure 3 A partially enlarged cross-sectional view of the implantation device and implant after the puncture needle mechanism is concealed.

[0026] Figure 5 An example is shown. Figure 4 A three-dimensional structural diagram of the implanted device and implant;

[0027] Figure 6 Another example is shown Figure 1 A partially enlarged cross-sectional view of the implanted device and implant at position A;

[0028] Figure 7 An example is shown. Figure 6 A partially enlarged cross-sectional view of the implantation device and implant after the puncture needle mechanism is concealed.

[0029] Figure 8 An example is shown. Figure 7 A three-dimensional structural diagram of the implanted device and implant;

[0030] Figure 9 A schematic diagram of the front view of an example trigger button, push mechanism, and cam in the untriggered state is shown.

[0031] Figure 10 An example is shown. Figure 9 A partially enlarged schematic diagram of the trigger button, push mechanism, and cam in the image;

[0032] Figure 11 An example is shown. Figure 10 A partially enlarged structural diagram of the trigger button, push mechanism, and cam at the end of the first stage;

[0033] Figure 12 A partial enlarged structural schematic view of the trigger button, the pushing mechanism and the cam in the second stage of the embodiment shown in FIG. 1 is shown in FIG. 2; Figure 10

[0034] Figure 13 A front view structural schematic view of the cam of the embodiment shown in FIG. 1 is shown in FIG. 3;

[0035] Figure 14 A perspective view structural schematic view of the cam of the embodiment shown in FIG. 1 is shown in FIG. 4;

[0036] Figure 15 A sectional view structural schematic view of the inner needle, the pushing needle and the implant in the second stage of the embodiment shown in FIG. 1 is shown in FIG. 5; Figure 6

[0037] Figure 16 A sectional view structural schematic view of the pushing needle in the second stage of the embodiment shown in FIG. 1 is shown in FIG. 6; Figure 15

[0038] A perspective view structural schematic view of the pushing needle of the embodiment shown in FIG. 1 is shown in FIG. 7; Figure 17

[0039] Reference signs:

[0040] 100, implant device; 200, implant;

[0041] 10, housing;

[0042] 20, trigger button; 21, key; 22, connecting rod; 221, limiting part; 23, second elastic member;

[0043] 30, observation tube; 31, first opening; 32, cavity; 33, tube body; 34, observation window; 35, elastic clamping member; 351, first connecting part; 352, protruding part; 353, second connecting part; 36, limiting cavity;

[0044] 40, pushing mechanism; 41, pushing needle; 411, second opening; 412, elastic claw; 42, pushing needle seat; 43, first elastic member;

[0045] 50, cam; 501, rotating shaft; 502, torsional spring; 51, first driving surface; 52, second driving surface; 53, first step surface; 54, second step surface; 55, third driving surface; 56, fourth driving surface; 57, third step surface; 58, limiting block;

[0046] 60, inner needle;

[0047] 70, puncture needle mechanism; 71, puncture needle; 711, third opening; 72, puncture needle seat;

[0048] ​​​80, protection mechanism; 81, protection slide; 82, protection link;

[0049] x, first direction; y, second direction; z, third direction; a, fourth direction; c, fifth direction. DETAILED DESCRIPTION

[0050] The features and exemplary embodiments of the various aspects of the present application will be described in detail below with reference to the drawings. The following detailed description is merely intended to explain the present application, and is not intended to limit the present application. The present application can be implemented without some of the specific details, which are well known to those skilled in the art. The following description of the embodiments is merely provided to give a better understanding of the present application by showing examples of the present application.

[0051] It should be noted that the terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0052] The applicant found that in the prior art, the intraocular drainage implant method is usually to implant the implant stent into the Schlemm's canal by the doctor manually, and this implantation method has the problems of inaccurate positioning and poor implantation effect.

[0053] In view of the above problems, the applicant proposes an implantation device for implanting an implant, the implantation device comprising a shell and an observation tube, the observation tube being fixedly connected with the shell, the observation tube being arranged to extend along a first direction, the observation tube comprising a tube body and an elastic clamping piece connected with each other, the tube body being enclosed to form a cavity, the cavity being used for accommodating the implant, at least part of the elastic clamping piece being located in the cavity, at least two elastic clamping pieces being enclosed to form a first opening, the diameter of the first opening being smaller than the diameter of the implant when not subjected to external force, the elastic clamping piece being configured to increase the diameter of the first opening when subjected to external force.

[0054] The implantation device provided in this application, by making the diameter of the first opening smaller than the diameter of the implant when not subjected to external force, and the elastic locking member configured to increase the diameter of the first opening when subjected to external force, the first opening does not affect the implantation of the implant. When the implantation device is moved or inverted, the first opening can reduce the probability of the implant falling out of the cavity, thereby improving the reliability of the implantation device.

[0055] The display module provided in the embodiments of this application will be described below with reference to the accompanying drawings. It should be noted that the x-direction in the drawings is the first direction, the y-direction is the second direction, the z-direction is the third direction, the a-direction is the fourth direction, and the c-direction is the fifth direction. In the drawings, for ease of drawing, the dimensions are not necessarily proportional to the actual dimensions. To ensure clarity, some outlines may be hidden in the drawings, and line widths may be differentiated.

[0056] Please refer to Figures 1 to 5 , Figure 1 This is a three-dimensional structural diagram of an implantation device according to some embodiments of this application; Figure 2 An example is shown. Figure 1 A schematic diagram of the exploded structure of the implanted device; Figure 3 An example is shown. Figure 1 A partially enlarged cross-sectional view of the implanted device and implant at position A; Figure 4 An example is shown. Figure 3 A partially enlarged cross-sectional view of the implantation device and implant after the puncture needle mechanism is concealed. Figure 5 An example is shown. Figure 4 A three-dimensional structural diagram of the implantation device and implant.

[0057] like Figures 1 to 5 As shown, this application provides an implantation device 100 for implanting an implant 200. The implantation device 100 includes a housing 10 and an observation tube 30. The observation tube 30 is fixedly connected to the housing 10 and extends along a first direction (x direction in the figure). The observation tube 30 includes a tube body 33 and an elastic locking member 35 connected to each other. The tube body 33 encloses a cavity 32 for accommodating the implant 200. At least a portion of the elastic locking member 35 is located within the cavity 32. At least two elastic locking members enclose a first opening 31. The diameter of the first opening 31 when not subjected to external force is smaller than the diameter of the implant 200. The elastic locking member 35 is configured to increase the diameter of the first opening 31 when subjected to external force.

[0058] Optionally, the implant 200 can be a conventional implant or an expansion stent. The expansion stent is made of shape memory materials, including nickel-titanium alloys, indium-thallium alloys, etc.

[0059] Optionally, during the procedure, the implant 200 is inserted into the patient's trabecular meshwork via the implantation device 100. After implantation into the patient's trabecular meshwork, the implant 200 becomes a pathway connecting the patient's anterior chamber to the Schlemm's canal, allowing aqueous humor to flow out of the anterior chamber through the implant 200, thereby reducing the patient's intraocular pressure and slowing the progression of glaucoma.

[0060] Optionally, in different embodiments, the implant 200 can be used to transfer aqueous humor to different parts of the eye, such as the space between the conjunctiva and sclera, the suprachoroidal space, a Schlemm tube, or a fluid reservoir formed on the posterior surface of the eye.

[0061] The implantation device 100 provided in this embodiment is used to implant an implant 200. The implantation device 100 includes a housing 10 and an observation tube 30. The observation tube 30 is fixedly connected to the housing 10 and extends along a first direction x. The observation tube 30 includes a tube body 33 and an elastic locking member 35 connected to each other. The tube body 33 encloses a cavity 32 for accommodating the implant 200. At least a portion of the elastic locking member 35 is located within the cavity 32. At least two elastic locking members enclose a first opening 31. By making the diameter of the first opening 31 smaller than the diameter of the implant 200 when not subjected to external force, the elastic locking member 35 is configured to increase the diameter of the first opening 31 when subjected to external force. The first opening 31 does not affect the implantation of the implant 200. When the implantation device 100 is moved or inverted, the first opening 31 can reduce the probability of the implant 200 falling out of the cavity 32, thereby improving the reliability of the implantation device 100.

[0062] In some optional embodiments, the elastic locking member 35 includes a first connecting portion 351 and a protrusion 352. The first connecting portion 351 is connected to the tube body 33, and the protrusion 352 is gradually protruding towards the cavity 32 along the first direction x.

[0063] Optionally, the elastic locking element 35 has a structure similar to a cantilever beam, and the diameter of the first opening 31 can be changed by the elasticity of the material itself.

[0064] Please refer to Figures 6 to 8 , Figure 6 Another example is shown Figure 1 A partially enlarged cross-sectional view of the implanted device and implant at position A; Figure 7 An example is shown. Figure 6 A partially enlarged cross-sectional view of the implantation device and implant after the puncture needle mechanism is concealed. Figure 8 An example is shown. Figure 7 A three-dimensional structural diagram of the implantation device and implant.

[0065] like Figures 6 to 8As shown, in some optional embodiments, the elastic locking member 35 includes a first connecting portion 351, a protrusion 352, and a second connecting portion 353. Both the first connecting portion 351 and the second connecting portion 353 are connected to the tube body 33, and the protrusion 352 is located between the first connecting portion 351 and the second connecting portion 353.

[0066] Optionally, the protrusion 352 protrudes into the cavity 32 along the first direction x and then extends into the tube 33 until it connects with the second connecting part 353. The protrusion 352 achieves the change in the diameter of the first opening 31 through the elasticity of the material itself.

[0067] Please refer to Figures 1 to 9 , Figure 9 A schematic diagram of the front view of an example trigger button, push mechanism, and cam in the untriggered state is shown.

[0068] like Figures 1 to 9 As shown, in some optional embodiments, the observation tube 30 has an observation window 34 on the side opposite to the housing 10.

[0069] Optionally, the observation window 34 is provided on the elastic locking element 35.

[0070] Optionally, the tube body 33 extends along the first direction x and forms an observation window on the side of the elastic locking member 35 opposite to the housing 10.

[0071] The implantation device 100 provided in this embodiment allows medical personnel to observe the implantation status of the implant 200 through the observation window 34 set on the tube body 33.

[0072] In some optional embodiments, the implantation device 100 further includes a pushing mechanism 40, a driving mechanism, and an inner needle 60. The pushing mechanism 40 is movably disposed with the housing 10 in a first direction x. The pushing mechanism 40 and the elastic locking member 35 form a limiting cavity 36, which can accommodate at least one implant 200. The inner needle 60 is connected to the housing 10, and at least one implant 200 is sleeved on the inner needle 60. At least a portion of the inner needle 60 is located within the cavity 32. The driving mechanism is movably disposed with the housing 10 and connected to the pushing mechanism 40. The pushing mechanism 40 includes a push needle 41, a push needle seat 42, and a first elastic member 43. The push needle 41 is sleeved on the inner needle 60, and the push needle 41 and the inner needle 60 are movably disposed in the first direction x. The push needle 41 has a second opening 411 at one end in the first direction x. The pusher seat 42 is connected to the end of the pusher 41 away from the second opening 411. The first elastic element 43 connects the pusher seat 42 and the housing 10. The first elastic element 43 is used to drive the pusher seat 42 and the pusher 41 to move along the second direction (y direction in the figure) until the pusher seat 42 is connected to the cam 50. The second direction y is opposite to the first direction x.

[0073] Optionally, the first elastic element 43 can be a spring.

[0074] Optionally, the drive mechanism can be a motor, cylinder, or other components.

[0075] Please refer to Figures 9 to 14 , Figure 10 An example is shown. Figure 9 A partially enlarged schematic diagram of the trigger button, push mechanism, and cam in the image; Figure 11 An example is shown. Figure 10 A partially enlarged structural diagram of the trigger button, push mechanism, and cam at the end of the first stage; Figure 12 An example is shown. Figure 10 A partially enlarged structural diagram of the trigger button, push mechanism, and cam at the end of the second stage; Figure 13 A front view schematic diagram of an example cam structure is shown; Figure 14 A three-dimensional schematic diagram of an example cam is shown. For clarity, the outlines of partially obscured parts are depicted with solid lines in the accompanying drawing.

[0076] like Figures 9 to 14 As shown, in some optional embodiments, the implantation device 100 includes a triggered state and a non-triggered state, the triggered state including a first stage and a second stage. The drive mechanism includes a cam 50, on which a first drive surface 51 and a second drive surface 52 are interconnected. The cam 50 is configured to rotate in a third direction (z-direction in the figure) in the triggered state. In the first stage, the first drive surface 51 drives the pushing mechanism 40 and the implant 200 to move in a first direction x. In the second stage, the second drive surface 52 drives the pushing mechanism to move in a second direction y. The first drive surface 51 extends gradually in the third direction z toward a direction away from the axis of rotation 501 of the cam 50, and the second drive surface 52 extends gradually in the third direction z toward a direction closer to the axis of rotation 501 of the cam 50.

[0077] Optionally, the cam 50 is connected to the housing 10 via a rotating shaft 501 and a torsion spring 502, the torsion spring 502 being used to drive the cam 50 to rotate around the rotating shaft 501 in a third direction z.

[0078] Optionally, the first driving surface 51 and the second driving surface 52 together form a conical protrusion on the cam 50.

[0079] In some optional embodiments, the cam 50 is further provided with a first stepped surface 53 and a second stepped surface 54. The first stepped surface 53 is connected to the first driving surface 51, and the second stepped surface 54 is connected to the second driving surface 52. The first stepped surface 53 is located on the side of the first driving surface 51 opposite to the second driving surface 52, and the second stepped surface 54 is located on the side of the second driving surface 52 opposite to the first driving surface 51. The distance from the first stepped surface 53 to the rotation axis 501 of the cam 50 is greater than the distance from the second stepped surface 54 to the rotation axis 501 of the cam 50.

[0080] Optionally, when the implantation device 100 is in a non-triggered state, the end of the pushing mechanism 40 facing away from the implant 200 is connected to the first stepped surface 53. In the first stage, the end of the pushing mechanism 40 facing away from the implant 200 is connected to the first driving surface 51. The first driving surface 51 drives the pushing mechanism 40 and the implant 200 to move along the first direction x. The implant 200 compresses the elastic locking member 35, causing the diameter of the first opening 31 to increase until the diameter of the first opening 31 is equal to the diameter of the implant 200. At this point, the implant 200 extends out of the limiting cavity 36 from the first opening 31. In the second stage, the end of the pushing mechanism 40 facing away from the implant 200 is connected to the second driving surface 52. The second driving surface 52 drives the pushing mechanism 40 to move along the second direction y. Since the distance from the first step surface 53 to the shaft 501 of the cam 50 is greater than the distance from the second step surface 54 to the shaft 501 of the cam 50, at the end of the second stage, the reset position of the pushing mechanism 40 is closer to the side of the housing 10 than the initial position, so as to allow the second implant 200 to enter the limiting cavity 36, so as to facilitate the second implantation of the implantation device 100.

[0081] In some optional embodiments, the cam 50 is further provided with a third driving surface 55, a fourth driving surface 56, and a third stepped surface 57 connected in sequence. The third driving surface 55 is connected to the second stepped surface 54 and is located on the side of the second stepped surface 54 away from the second driving surface 52. The distance from the second stepped surface 54 to the rotation axis 501 of the cam 50 is greater than the distance from the third stepped surface 57 to the rotation axis 501 of the cam 50. The third driving surface 55 extends gradually in a direction away from the rotation axis 501 of the cam 50 along the third direction z, and the fourth driving surface 56 extends gradually in a direction closer to the rotation axis 501 of the cam 50 along the third direction z.

[0082] Optionally, the third driving surface 55 and the fourth driving surface 56 together form a conical protrusion on the cam 50. The first driving surface 51, the second driving surface 52, the third driving surface 55, the fourth driving surface 56, the first step surface 53, the second step surface 54, and the third step surface 57 are all located on the rim of the cam 50, and the end of the pushing mechanism 40 away from the implant 200 is always connected to the rim of the cam 50. In the implantation device 100 provided in this embodiment, the two conical protrusions are connected by only one step surface. The outer arc of the step surface is longer. The setting of one step surface makes the control of the pushing mechanism 40 more precise during the rotation of the cam 50, thereby making the pushing mechanism 40 drive the implant into the eye with higher precision.

[0083] Optionally, after one implantation, the end of the pushing mechanism 40 away from the implant 200 connects to the second stepped surface 54, and then the user continues to bring the implantation device 100 into a second trigger state. In the first stage, the end of the pushing mechanism 40 away from the implant 200 connects to the third driving surface 55, which drives the pushing mechanism 40 and the implant 200 to move along the first direction x. In the second stage, the end of the pushing mechanism 40 away from the implant 200 connects to the fourth driving surface 56, which drives the pushing mechanism 40 to move along the second direction y. Since the distance from the second stepped surface 54 to the pivot 501 of the cam 50 is greater than the distance from the third stepped surface 57 to the pivot 501 of the cam 50, at the end of the second stage, the reset position of the pushing mechanism 40 is closer to the housing 10 than the initial position, so that the third implant 200 can enter the limiting cavity 36, facilitating the third implantation of the implantation device 100.

[0084] Optionally, when the implantation device 100 supports more implantations, more drive surfaces and step surfaces can be provided on the cam 50.

[0085] The implantation device 100 provided in this embodiment has an implant 200 pre-placed in the limiting cavity 36. In the triggered state, the pusher 41 first moves along the first direction x to implant the implant 200, and then moves along the second direction y to allow the next implant 200 to enter the limiting cavity 36. This ensures that the second implantation also involves implantation followed by loading. Compared to the scheme of retracting to load the implant 200 and then advancing to implant it, this scheme avoids the impact of vibration caused by retracting loading on implantation, thereby improving the implantation accuracy of the implantation device 100. Secondly, the first implant 200 does not need to be loaded by the rotation of the cam 50, avoiding incomplete loading due to insufficient rotation angle of the cam 50, thus improving the implantation reliability of the implantation device 100.

[0086] In other embodiments, if only one implant is implanted, the implant can be directly implanted into the implant 200 by moving the pusher 41 along the first direction x when the trigger state is triggered. The pusher 41 does not need to be set to move along the second direction y, which reduces the functional and complexity requirements of the structure and improves the implantation accuracy.

[0087] In other embodiments, if only two implants are implanted, the first implant can be directly implanted by moving the pusher 41 along the first direction x when the trigger state is activated. Then the pusher 41 moves along the second direction y until it is located at the tail of the second implant. At this time, the distance the pusher retracts can be greater than the length of the implant. That is, the retraction distance does not need to be strictly set according to the length of the implant and can be greater than that length. At this time, the accuracy requirement for retraction is reduced, thereby reducing the complexity requirement of the structure and improving the implantation accuracy.

[0088] Please refer to Figures 15 to 17 , Figure 15 An example is shown. Figure 6 A cross-sectional schematic diagram of the inner needle, push needle, and implant; Figure 16 An example is shown. Figure 15 A cross-sectional view of the pusher pin in the diagram; Figure 17 A three-dimensional schematic diagram of an example pusher pin is shown.

[0089] like Figures 15 to 17 As shown, in some optional embodiments, the end of the pusher 41 away from the pusher seat 42 is provided with an elastic claw 412, and a second opening 411 is formed between the multiple elastic claws 412. The inner diameter of the opening of the elastic claw 412 gradually increases in the second direction y along the direction close to the pusher seat 42.

[0090] Optionally, the implant 200 has an inclined front end in the first direction x and a plane perpendicular to the first direction x at its rear end. The diameter of the second opening 411 is smaller than the diameter of the implant 200. The elastic claw 412 causes the pusher 41 to move the implant 200 located in the limiting cavity 36 in the first direction x when it moves along the first direction x. When the pusher 41 moves along the second direction y, the inclined surface of the next implant 200 compresses the elastic claw 412, causing the diameter of the second opening 411 to increase until the diameter of the second opening 411 is equal to the diameter of the implant 200. Then, the next implant 200 enters the limiting cavity 36 to facilitate the next implantation of the implantation device 100.

[0091] Optionally, in the first stage, the push needle seat 42 is connected to the first driving surface 51, which drives the push needle seat 42 to overcome the elastic force of the first elastic member 43, thereby causing the push needle seat 42, the push needle 41, and the implant 200 located in the limiting cavity 36 to move along the first direction x. In the second stage, the push needle seat 42 is connected to the second driving surface 52, and the elastic force of the first elastic member 43 and the second driving surface 52 drive the push needle seat 42 and the push needle 41 to move along the second direction y until the next implant 200 on the inner needle 60 enters the limiting cavity 36.

[0092] In some optional embodiments, the implantation device 100 further includes a trigger button 20, which includes a button 21 and a linkage 22. The button 21 is movably disposed from the housing 10. The linkage 22 connects the button 21 and the cam 50. The linkage 22 is configured to mutually limit the cam 50 in the non-triggered state, thereby limiting the rotation of the cam 50 in the third direction z. In the triggered state, the button 21 drives the linkage 22 to move in the fourth direction (direction a in the figure) and releases the cam 50.

[0093] Optionally, when the user presses the trigger button 20, the implanted device 100 enters the trigger state.

[0094] Optionally, the trigger button 20 may further include a second elastic element 23, which connects the button 21 and the housing 10. The second elastic element 23 is used to move the trigger button 20 along the fifth direction (direction c in the figure) when no external force is applied. The second elastic element 23 can be a torsion spring, where the fifth direction c is opposite to the fourth direction a, and the fourth direction a is perpendicular to the first direction x.

[0095] In some optional embodiments, the cam 50 is further provided with a limiting block 58, and the connecting rod 22 is provided with a limiting part 221. The limiting part 221 is configured to abut against the limiting block 58 in a non-triggered state, thereby restricting the cam 50 from rotating in the third direction z. In the triggered state, the connecting rod 22 moves in the fourth direction a, the limiting part 221 releases the limiting block 58, and the cam 50 rotates in the third direction z.

[0096] In some alternative embodiments, a plurality of limit blocks 58 are spaced apart around the pivot 501 of the cam 50.

[0097] Optionally, the limit blocks 58 are all located on the connection surface between the wheel rim and the rotating shaft 501.

[0098] Optionally, when the user presses button 21, button 21 and connecting rod 22 move along the fourth direction a, overcoming the elastic force of the second elastic element 23, until the limiting part 221 no longer interferes with the limiting block 58, thereby releasing cam 50. Cam 50 rotates along the third direction z, causing implantation device 100 to enter the trigger state. Afterwards, the user releases button 21, and button 21 and connecting rod 22 move along the fifth direction c and reset under the elastic force of the second elastic element 23. After experiencing a first stage and a second stage, cam 50 rotates a certain angle until the limiting part 221 interferes with the next limiting block 58. Cam 50 stops rotating and is in a non-trigger state, and implantation device 100 completes one implantation. When the user presses button 21 again, implantation device 100 enters the next trigger state.

[0099] In some alternative embodiments, the implantation device 100 may further include a puncture needle mechanism 70, which is movably disposed from the housing 10 in a first direction x, and the puncture needle mechanism 70 is sleeved on the observation tube 30.

[0100] Please continue to refer to this. Figures 1 to 3 In some optional embodiments, the puncture needle mechanism 70 includes a puncture needle 71 and a puncture needle seat 72. The puncture needle 71 is sleeved on the observation tube 30, and the puncture needle 71 has a third opening 711 in the first direction x. The puncture needle seat 72 is connected to the end of the puncture needle 71 opposite to the third opening 711, and the puncture needle seat 72 and the housing are movably disposed in the first direction x.

[0101] Please continue to refer to this. Figures 1 to 2 In some optional embodiments, the implantation device 100 may further include a protection mechanism 80, which is movably disposed from the housing 10 in a first direction x. The protection mechanism 80 includes a protection slide button 81 and a protection link 82 connected to each other, and the protection link 82 is connected to the puncture needle seat 72.

[0102] Optionally, in the untriggered state, the observation tube 30 is housed within the puncture needle 71. During implantation, the end of the puncture needle 71 furthest from the puncture needle hub 72 is inserted into the trabecular meshwork and the Schlem-like canal inside the trabecular meshwork within the patient's eyeball. The user pushes the protective slider 81 along the second direction y, thereby moving the puncture needle hub 72 and the puncture needle 71 along the second direction y until the observation tube 30 extends out of the puncture needle 71 from the third opening 711. The user then presses button 21 to begin implantation. After implantation is complete, the user pushes the protective slider 81 along the first direction x, thereby moving the puncture needle hub 72 and the puncture needle 71 along the first direction x until the observation tube 30 is housed within the puncture needle 71.

[0103] The second aspect of this application also provides an implantation system, including the implantation device 100 and implant 200 of any of the first aspect embodiments described above. Since the implantation system provided by the second aspect of this application includes the implantation device 100 of any of the first aspect embodiments described above, the implantation system provided by the second aspect of this application has the beneficial effects of the implantation device 100 of any of the first aspect embodiments described above, which will not be elaborated further here.

[0104] The third aspect of this application also provides a method of using an implantation system, applied to any of the above embodiments of the implantation system, the method of use including:

[0105] Step S01: Insert the implantation system into the patient's eye.

[0106] Step S02: Press the trigger button 20. The trigger button 20 drives the push mechanism 40 and the implant 200 in the limiting cavity 36 to move along the first direction x until the implant 200 extends out of the cavity 32 from the first opening 31.

[0107] In step S03, the driving mechanism drives the pushing mechanism 40 to move along the second direction y until the next implant 200 enters the limiting cavity 36.

[0108] Optionally, the drive mechanism includes cam 50.

[0109] Optionally, step S02 corresponds to the first stage. Specifically, after the user presses and releases button 21, button 21 drives linkage 22 to move along the fourth direction a, limiting part 221 releases limiting block 58, and then cam 50 rotates along the third direction z. Afterwards, the first driving surface 51 drives the push mechanism 40 and the implant 200 in the limiting cavity 36 to move along the first direction x. The implant 200 squeezes the elastic locking member 35 to increase the diameter of the first opening 31 until the diameter of the first opening 31 is equal to the diameter of the implant 200. Then, the implant 200 extends out of the limiting cavity 36 from the first opening 31 and is implanted into the patient's affected area. Step S03 corresponds to the second stage. Specifically, the cam 50 continues to rotate along the third direction z, and the second driving surface 52 drives the pushing mechanism to move along the second direction y. The inclined surface of the next implant 200 squeezes the elastic claw 412, making the diameter of the second opening 411 larger. When the diameter of the second opening 411 is equal to the diameter of the implant 200, the next implant 200 enters the limiting cavity 36. The button 21 and the connecting rod 22 move along the fifth direction c and reset under the elastic force of the second elastic element 23. After going through the first and second stages, the cam 50 rotates a certain angle until the limiting part 221 interferes with the next limiting block 58. The cam 50 stops rotating and is in a non-triggered state. The implantation device 100 completes one implantation.

[0110] Optional, usage methods also include:

[0111] Step S04, repeat steps S02 and S03 to complete the implantation of multiple implants 200.

[0112] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. An implantation device for implanting an implant, characterized in that, include: case; An observation tube is fixedly connected to the housing and extends along a first direction. The observation tube includes interconnected tube bodies and elastic locking members. The tube bodies enclose a cavity for accommodating the implant. At least a portion of the elastic locking members are located within the cavity. At least two elastic locking members enclose a first opening. The diameter of the first opening when not subjected to external force is smaller than the diameter of the implant. The elastic locking members are configured to increase the diameter of the first opening when subjected to external force. The observation tube also has an observation window for observing the implantation status of the implant. A pushing mechanism is movably disposed with the housing in the first direction, and a limiting cavity is formed between the pushing mechanism and the elastic locking member. The limiting cavity can accommodate at least one of the implants. The pushing mechanism includes a push needle. An inner needle is connected to the housing, and at least one of the implants is sleeved on the inner needle. At least a portion of the inner needle is located within the cavity. A push needle is sleeved on the inner needle. The push needle and the inner needle are movably arranged in the first direction. The push needle has a second opening at one end in the first direction.

2. The implantation device according to claim 1, characterized in that, The elastic locking component includes a first connecting part and a protruding part. The first connecting part is connected to the tube body, and the protruding part is gradually protruding into the cavity along a first direction.

3. The implantation device according to claim 2, characterized in that, The elastic locking component further includes a second connecting portion, the protrusion being located between the first connecting portion and the second connecting portion, and the second connecting portion being connected to the tube body.

4. The implantation device according to claim 1, characterized in that, Also includes: A drive mechanism is movably disposed from the housing and connected to the push mechanism; The push mechanism includes: A pusher seat is connected to the end of the pusher that is away from the second opening; A first elastic element connects the pusher seat and the housing. The first elastic element is used to drive the pusher seat and the pusher to move along a second direction until the pusher seat is connected to the driving mechanism. The second direction is opposite to the first direction.

5. The implantation device according to claim 4, characterized in that, The pusher pin has an elastic claw at one end away from the pusher pin seat, and a second opening is formed between the multiple elastic claws. The inner diameter of the opening of the elastic claw gradually increases in the second direction along the direction close to the pusher pin seat.

6. The implantation device according to claim 4, characterized in that, The implantable device includes a triggered state and a non-triggered state, and the triggered state includes a first stage and a second stage. The drive mechanism includes a cam, on which a first drive surface and a second drive surface are connected to each other. The cam is configured to rotate in a third direction in the triggered state. In the first stage, the first drive surface drives the push mechanism and the implant to move in the first direction. In the second stage, the second drive surface drives the push mechanism to move in the second direction. The first driving surface extends gradually away from the rotation axis of the cam along the third direction, and the second driving surface extends gradually towards the rotation axis of the cam along the third direction.

7. The implantation device according to claim 6, characterized in that, The cam is further provided with a first stepped surface and a second stepped surface. The first stepped surface is connected to the first driving surface, and the second stepped surface is connected to the second driving surface. The first stepped surface is located on the side of the first driving surface away from the second driving surface, and the second stepped surface is located on the side of the second driving surface away from the first driving surface. The distance from the first stepped surface to the rotation axis of the cam is greater than the distance from the second stepped surface to the rotation axis of the cam.

8. The implantation device according to claim 7, characterized in that, The cam is further provided with a third driving surface, a fourth driving surface and a third step surface connected in sequence. The third driving surface is connected to the second step surface. The third driving surface is located on the side of the second step surface away from the second driving surface. The distance from the second step surface to the rotation axis of the cam is greater than the distance from the third step surface to the rotation axis of the cam. The third driving surface extends gradually away from the rotation axis of the cam along the third direction, and the fourth driving surface extends gradually towards the rotation axis of the cam along the third direction.

9. The implantation device according to claim 6, characterized in that, Also includes: A trigger button, comprising a button and a linkage, wherein the button is movably disposed from the housing, and the linkage connects the button and the cam, and the linkage is configured to mutually limit the cam in a non-triggered state, thereby restricting the cam from rotating in the third direction; In the triggered state, the button drives the linkage to move in the fourth direction and releases the cam.

10. The implantation device according to claim 9, characterized in that, The cam is provided with a limiting block, and the connecting rod is provided with a limiting part. The limiting part is configured to abut against the limiting block in a non-triggered state, thereby restricting the cam from rotating in the third direction. In the triggered state, the connecting rod moves along the fourth direction, the limiting part releases the limiting block, and then the cam rotates along the third direction.

11. The implantation device according to claim 10, characterized in that, The plurality of limiting blocks are spaced apart around the rotating shaft of the cam.

12. The implantation device according to claim 1, characterized in that, The observation tube has an observation window on the side opposite to the housing.

13. An implantation system, characterized in that, Includes the implantation device and the implant as described in any one of claims 1 to 12.

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