Crystalline lens sampler

Abstract

The invention provides a crystalline lens sampler, and relates to the technical field of crystalline lens sampling, the crystalline lens sampler comprises a hollow main body, a sliding rod is inserted in the hollow main body, and the sliding rod penetrates through the main body and slides in the main body along the central axis of the main body; one end of the sliding rod is an adjusting handle, and the other end is a working end; the working end can slide in the main body through the sliding rod and is stored in the main body; a tip is arranged at one end, far away from the sliding rod, of the working end; a limiting piece is arranged in the main body, one end of the limiting piece is rotationally connected with the main body, and the other end of the limiting piece extends out of the outer side of the main body through a guide groove in the main body; the limiting piece is elastic and can press the sliding rod after making contact with the sliding rod, and the problems that a traditional surgical instrument cannot effectively take out a crystalline lens tissue sample in the surgical process, the corneal endothelium and the crystalline lens suspension ligament are possibly damaged, and the surgical effect and patient recovery are affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lens sampling, in particular to a lens sampler. Background Art

[0002] Cataracts are visual impairments caused by clouding of the lens, and their incidence increases with age. Surgery is the only effective treatment for cataracts, with phacoemulsification cataract extraction being the most popular procedure internationally. Phacoemulsification combined with intraocular lens implantation is primarily indicated for patients with significantly decreased vision due to cataracts, aiming to improve their visual function and quality of life.

[0003] However, during phacoemulsification surgery, the lens contents (including the lens cortex and nucleus) are broken up and aspirated by ultrasound, leaving the original lens tissue structure unretained. If lens tissue sampling is desired for research, such as pathological examination or in situ immunofluorescence testing, there are currently no effective tools for collecting samples. Traditional surgical instruments are unable to effectively remove lens tissue samples during surgery and may damage the corneal endothelium and lens suspensory ligament, compromising surgical effectiveness and patient recovery. Summary of the Invention

[0004] The present invention provides a lens sampler, which specifically includes: a hollow main body, in which a sliding rod is inserted, which penetrates the main body and slides along the central axis of the main body; one end of the sliding rod is an adjustment handle, and the other end is a working end; the working end can be stored inside the main body by sliding the sliding rod inside the main body; the working end is provided with a tip at the end away from the sliding rod; a limiting member is provided inside the main body, one end of the limiting member is rotatably connected to the main body, and the other end of the limiting member protrudes out of the outside of the main body through a guide groove on the main body; the limiting member is elastic, and can exert pressure on the sliding rod after contacting the sliding rod.

[0005] Preferably, the interior of the main body is provided with a movable cavity and a storage cavity that are isolated from each other; the sliding rod passes through the movable cavity and the storage cavity, and the working end is located inside the storage cavity when being stored.

[0006] Preferably, a sealing cover is provided at one end of the opening of the storage cavity.

[0007] Preferably, a guide groove is provided on the outer wall of the movable cavity of the main body, and a limiting protrusion is provided inside the guide groove; a mounting seat is provided on the opposite side of the position of the guide groove inside the main body, the limiting member is rotatably connected to the mounting seat, and the other side of the limiting member is limited by the limiting protrusion.

[0008] Preferably, a contact piece is provided in the middle of the sliding rod; the contact piece is a polygonal protrusion wrapped around the outside of the sliding rod and having a rough surface; the limiting piece is in direct contact with the contact piece when limiting the sliding rod.

[0009] Preferably, the working end is an arc-shaped structure; the interior of the working end is hollow, and half of the upper and lower surfaces of the working end are connected to the interior, so that the working end forms an annular tool.

[0010] Preferably, the other half of the upper and lower surfaces of the working end and the interior of the working end form a cavity for storage, and the front and rear end surfaces inside the working end are provided with limit grooves; the interior of the sliding rod has a cavity, and a control rod is inserted into the sliding rod; a plurality of sliders are placed in the storage cavity of the working end, and the sliders are cubic metal blocks, and the sliders slide along the limit grooves of the working end; the plurality of sliders are connected by flexible connecting belts, and the sliders close to the outermost sides of the sliding rod are rotationally connected to the control rod; the inner wall of the sliding rod is provided with a thread on the side close to the adjusting handle, and the end of the control rod away from the slider is also provided with a thread, and the control rod and the sliding rod are connected by threads.

[0011] Preferably, it further includes a gripping handle; a connecting seat A is provided at one end of the main body away from the working end, and a connecting seat B is provided at one end of the gripping handle; the gripping handle is detachably connected to the main body via the connecting seat B and the connecting seat A.

[0012] Preferably, a sliding groove is provided at the upper end of the gripping handle, and a driving member is slidingly connected inside the sliding groove; the control switch of the driving member is placed on the gripping handle; a pulley is connected to the main shaft of the driving member, and a transmission wheel is provided at the end of the sliding rod close to the adjustment handle, and the pulley and the transmission wheel are connected by a belt.

[0013] Preferably, a support frame is fixedly connected to one side of the main body close to the working end.

[0014] Beneficial effects

[0015] 1. In this invention, a retractable collection head (working end) and an electric drive system enable precise and non-destructive acquisition of lens cortical or nuclear tissue within the original surgical incision, avoiding additional incisions while protecting the corneal endothelium and suspensory ligament from damage. The main body storage design keeps the sample sealed during retrieval, significantly reducing the risk of contamination and ensuring the reliability of the test results.

[0016] 2. The instrument utilizes a modular design (e.g., detachable grips and support frame) that is compatible with existing surgical procedures, offering ease of operation and strong compatibility. A flexible slider and threaded drive structure enable the collection head to flexibly switch between circular cutting and curette modes, adapting to varying sampling needs and reducing the frequency of intraoperative instrument changes. The innovative combination of a sealing cap and guide stop further enhances sample storage security and operational stability, balancing surgical efficiency and patient safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure:

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a lens sampler according to an embodiment of the present invention is shown.

[0021] Figure 2 A cross-sectional view of the body of a lens sampler according to an embodiment of the present invention is shown.

[0022] Figure 3 A cross-sectional view of a sliding rod of a lens sampler according to an embodiment of the present invention is shown.

[0023] Figure 4 The lens sampler according to the embodiment of the present invention is shown. Figure 3 A local enlarged schematic diagram of point A is shown.

[0024] Figure 5 The lens sampler according to the embodiment of the present invention is shown. Figure 3 A local enlarged schematic diagram of point B is shown.

[0025] Figure 6 An assembly diagram of a slider of a lens sampler according to an embodiment of the present invention is shown.

[0026] Figure 7 FIG2 is an assembly diagram showing another state of a slider of a lens sampler according to an embodiment of the present invention.

[0027] Figure 8 A schematic diagram of the three-dimensional structure of a limiting component of a lens sampler according to an embodiment of the present invention is shown.

[0028] Figure 9 The lens sampler according to the embodiment of the present invention is shown. Figure 8 A local enlarged schematic diagram of point C is shown.

[0029] Figure 10 FIG2 shows an assembly diagram of a holding handle of a lens sampler according to another embodiment of the present invention.

[0030] Figure 11 FIG. 1 shows an assembly diagram of a driving member of a lens sampler according to another embodiment of the present invention.

[0031] Figure 12 FIG. 1 shows an assembly diagram of a seal of a lens sampler according to another embodiment of the present invention.

[0032] Figure 13 FIG. 1 shows an assembly diagram of a support member of a lens sampler according to another embodiment of the present invention.

[0033] List of main reference numerals

[0034] 101. Main body; 102. Active cavity; 103. Storage cavity; 104. Guide groove; 105. Mounting seat; 106. Connecting seat A;

[0035] 201, sliding rod; 202, working end; 203, contact piece; 204, adjustment handle; 205, tip; 206, conduction wheel;

[0036] 301, slider; 302, control rod; 303, connecting belt;

[0037] 4. Limiting parts;

[0038] 5. Grip handle; 501. Connecting seat B; 502. Sliding slot; 503. Driving member;

[0039] 6. Sealing cover;

[0040] 7. Support frame. DETAILED DESCRIPTION

[0041] To make the purpose, technical solutions, and advantages of this application more clear, the following will provide a clear and complete description of the technical solutions of this application in conjunction with the specific embodiments of this application and the corresponding drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0042] In this document, “illustrative” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “illustrative” should not be interpreted as a more preferred or more advantageous technical solution.

[0043] To simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled.

[0044] In this document, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. Unless otherwise specified or explained, the term "plurality" refers to two or more. The terms "connected" and "fixed" should be understood broadly. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] Example: Please refer to Figures 1 to 13 :

[0046] The present invention proposes a lens sampler, comprising: a hollow main body 101, into which is inserted a sliding rod 201 that passes through the main body 101 and slides along the central axis of the main body 101; one end of the sliding rod 201 is an adjustment handle 204, and the other end is a working end 202; the working end 202 can be accommodated inside the main body 101 by sliding the sliding rod 201 inside the main body 101; a tip 205 is provided at the end of the working end 202 away from the sliding rod 201; a limiting member 4 is provided inside the main body 101, one end of the limiting member 4 is rotatably connected to the main body 101, and the other end of the limiting member 4 protrudes out of the outside of the main body 101 through the guide groove 104 on the main body 101; the limiting member 4 is elastic, and after contacting the sliding rod 201, the limiting member 4 can press the sliding rod 201; Figure 1As shown, after the main body 101 receives one end of the working end 202 and aligns it with the original eyeball incision, the working end 202 is driven out of the main body 101 by the sliding rod 201, and the working end 202 is inserted into the eye for sampling. When the working end 202 enters and exits the eye, it can be retracted into the main body 101 to avoid damaging tissues such as the corneal endothelium. When the working end 202 is in the eye, the handle of the sliding rod 201 is turned to rotate the working end 202 in the eye without moving the main body 101, so as to adjust the position of the working end 202 in the eye. The angle of the working end 202 is adjusted so that it is aligned with the lens tissue to be collected, and the rotation speed of the sliding rod 201 and the working end 202 is increased. The tip 205 of the working end 202 is used to cut the tissue. After the collection is completed, the working end 202 is slowly withdrawn from the eye and the tissue is temporarily stored inside the main body 101, reducing the contact of the tissue sample with the external environment, such as the patient's extraocular tissue, other surgical instruments, etc., and effectively preventing the tissue sample from being contaminated until the collected tissue sample is placed in the preservation solution.

[0047] Among them, Figure 2 As shown, the interior of the main body 101 is provided with an active cavity 102 and a receiving cavity 103 that are isolated from each other; the sliding rod 201 passes through the active cavity 102 and the receiving cavity 103, and the working end 202 is located inside the receiving cavity 103 when it is stored; because the main body 101 is also provided with a limit member 4, the active cavity 102 is in a state of communication with the outside world. By isolating the two chambers, the working end 202 and the tissue sample can be effectively prevented from being contaminated before and after sampling.

[0048] Among them, Figure 12 As shown, a sealing cover 6 is provided at one end of the opening of the storage cavity 103 ; the storage cavity 103 can be used as a temporary tissue sample storage device. When it is temporarily inconvenient to store tissue samples, the sealing cover 6 forms a closed environment for temporary storage of tissue samples.

[0049] Among them, Figure 2 、 Figure 8 and Figure 9 As shown, a guide groove 104 is provided on the outer wall of the movable cavity 102 of the main body 101, and a limiting protrusion is provided inside the guide groove 104; a mounting seat 105 is provided on the opposite side of the position of the guide groove 104 inside the main body 101, and the limiting member 4 is rotatably connected to the mounting seat 105, and the other side of the limiting member 4 is limited by the limiting protrusion; the limiting member 4 can slide slightly at the place where it is connected to the mounting seat 105, so that the limiting member 4 can be stuck in the groove formed by the limiting protrusion. When the sliding rod 201 is not required to slide and rotate, the limiting member 4 presses the sliding rod 201 to limit the sliding rod 201, thereby ensuring the stability of the sliding rod 201.

[0050] Among them, Figure 2 and Figure 8As shown, a contact piece 203 is provided in the middle of the sliding rod 201; the contact piece 203 is a polygonal protrusion wrapped around the outside of the sliding rod 201 and with a rough surface; the limiting piece 4 is in direct contact with the contact piece 203 when limiting the sliding rod 201; the friction between the contact piece 203 and the limiting piece 4 is increased to ensure the stability of the fixation, and the cross-section of the contact piece 203 is polygonal, so that it has a flat surface that fits with the surface of the limiting piece 4 made of elastic metal sheet material, thereby limiting the rotation of the sliding rod 201.

[0051] Among them, Figure 3 and Figure 7 As shown, the working end 202 is an arc-shaped structure; the interior of the working end 202 is hollow, and half of the upper and lower surfaces of the working end 202 are connected to the interior, so that the working end 202 forms an annular tool.

[0052] Among them, Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the other half of the upper and lower surfaces of the working end 202 and the interior of the working end 202 form a cavity for storage, and the front and rear end surfaces of the interior of the working end 202 are provided with limit grooves; the interior of the sliding rod 201 has a cavity, and the interior of the sliding rod 201 is inserted with a control rod 302; a plurality of sliders 301 are placed in the storage cavity of the working end 202, and the sliders 301 are cubic metal blocks, and the sliders 301 slide along the limit grooves of the working end 202; the plurality of sliders 301 are connected by flexible connecting belts 303, and the slider 301 close to the outermost side of the sliding rod 201 is rotatably connected to the control rod 302; a thread is provided on the side of the inner wall of the sliding rod 201 close to the adjusting handle 204, and the control rod 302 is away from One end of the slider 301 is also provided with a thread, and the control rod 302 is connected to the sliding rod 201 by a thread; the height of the slider 301 is less than the height of the limiting groove of the working end, so that multiple sliders 301 can bend at a certain arc in the limiting groove. In the initial state, multiple sliders 301 are stored in the cavity for storage inside the working end 202. At this time, the working end 202 can be used as an annular tool. After the control rod 302 is rotated to push the slider 301 to slide and fills the part through which the working end 202 passes, the working end 202 becomes a scraper tool, thereby making this instrument suitable for more sampling scenarios. At the same time, during a single sampling process, the number of instrument replacements is reduced, reducing surgical risks.

[0053] Among them, Figure 10As shown, it also includes a gripping handle 5; a connecting seat A106 is provided at one end of the main body 101 away from the working end 202, and a connecting seat B501 is provided at one end of the gripping handle 5; the gripping handle 5 is detachably connected to the main body 101 through the connecting seat B501 and the connecting seat A106; the gripping handle 5 has an ergonomic grip, which is convenient for medical staff to hold the device.

[0054] Among them, Figure 11 As shown, a sliding groove 502 is provided at the upper end of the holding handle 5, and a driving member 503 is slidably connected inside the sliding groove 502; the control switch of the driving member 503 is placed on the holding handle 5; a pulley is connected to the main shaft of the driving member 503, and a conductive wheel 206 is provided at the end of the sliding rod 201 close to the adjustment handle 204, and the pulley and the conductive wheel 206 are connected by a belt; the sliding of the driving member 503 and the rotation of the main shaft can synchronously drive the sliding and rotation of the sliding rod 201, changing the device from manual drive to electric drive. In one embodiment, the driving member 503 can use an external supporting computing device to more accurately and stably realize the sampling of the working end 202 in the eye.

[0055] Among them, Figure 13 As shown, the main body 101 is fixedly connected to a support frame 7 on one side close to the working end 202; for patients with fixed positions, the device can be stably placed above the patient's eyes through the support frame 7, and there is no need to hold the main body 101, thereby avoiding the safety hazard of accidental injury caused by shaking of the hands when holding the device.

[0056] The above description is only a specific embodiment of the present application. Based on the above teachings of the present application, those skilled in the art may make other improvements or modifications based on the above embodiments. Those skilled in the art should understand that the above description is only a better explanation of the purpose of the present application, and the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A lens sampler, characterized in that: include: A hollow main body (101) is provided with a sliding rod (201) which penetrates the main body (101) and slides along the central axis of the main body (101) inside the main body (101); one end of the sliding rod (201) is an adjusting handle (204), and the other end is a working end (202); the working end (202) can be accommodated inside the main body (101) by sliding the sliding rod (201) inside the main body (101); a tip (205) is provided at one end of the working end (202) away from the sliding rod (201); a limiting member (4) is provided inside the main body (101), one end of the limiting member (4) is rotatably connected to the main body (101), and the other end of the limiting member (4) protrudes out of the outside of the main body (101) through the guide groove (104) on the main body (101); the limiting member (4) is elastic, and the limiting member (4) can press the sliding rod (201) after contacting the sliding rod (201).

2. A lens sampler according to claim 1, characterized in that: The main body (101) is provided with a mutually isolated active cavity (102) and a receiving cavity (103) inside; the sliding rod (201) passes through the active cavity (102) and the receiving cavity (103), and the working end (202) is located inside the receiving cavity (103) when being received.

3. A lens sampler according to claim 2, characterized in that: A sealing cover (6) is provided at one end of the opening of the storage cavity (103).

4. A lens sampler according to claim 2, characterized in that: A guide groove (104) is provided on the outer wall of the movable cavity (102) of the main body (101), and a limiting protrusion is provided inside the guide groove (104); a mounting seat (105) is provided on the opposite side of the position where the guide groove (104) is located inside the main body (101); the limiting member (4) is rotatably connected to the mounting seat (105), and the other side of the limiting member (4) is limited by the limiting protrusion.

5. A lens sampler according to claim 4, characterized in that: A contact piece (203) is provided in the middle of the sliding rod (201); the contact piece (203) is a polygonal protrusion wrapped around the outside of the sliding rod (201) and having a rough surface; the limiting piece (4) directly contacts the contact piece (203) when limiting the sliding rod (201).

6. A lens sampler according to claim 1, characterized in that: The working end (202) is an arc-shaped structure; the interior of the working end (202) is hollow, and half of the upper and lower surfaces of the working end (202) are connected to the interior, so that the working end (202) forms an annular tool.

7. A lens sampler according to claim 1, characterized in that: The other half of the upper and lower surfaces of the working end (202) and the interior of the working end (202) form a cavity for storage, and the front and rear end surfaces of the working end (202) are provided with limit grooves; the interior of the sliding rod (201) has a cavity, and a control rod (302) is inserted into the interior of the sliding rod (201); a plurality of sliders (301) are placed in the storage cavity of the working end (202), and the sliders (301) are cubic metal blocks, and the sliders (301) are arranged along the working end. (202) slides in the limiting groove; a plurality of the sliders (301) are connected by a flexible connecting belt (303), and the slider (301) close to the outermost side of the sliding rod (201) is rotatably connected to the control rod (302); a thread is provided on the inner wall of the sliding rod (201) close to the adjustment handle (204), and a thread is also provided on the end of the control rod (302) away from the slider (301), and the control rod (302) is connected to the sliding rod (201) by a thread.

8. The lens sampler according to claim 1, characterized in that: It also includes a gripping handle (5); a connecting seat A (106) is provided at one end of the main body (101) away from the working end (202), and a connecting seat B (501) is provided at one end of the gripping handle (5); the gripping handle (5) is detachably connected to the main body (101) via the connecting seat B (501) and the connecting seat A (106).

9. A lens sampler according to claim 8, characterized in that: The upper end of the gripping handle (5) is provided with a sliding groove (502), and a driving member (503) is slidably connected inside the sliding groove (502); a control switch of the driving member (503) is placed on the gripping handle (5); a pulley is connected to the main shaft of the driving member (503), and a transmission wheel (206) is provided at one end of the sliding rod (201) close to the adjustment handle (204), and the pulley and the transmission wheel (206) are connected by a belt.

10. The lens sampler according to claim 1, characterized in that: A support frame (7) is fixedly connected to one side of the main body (101) close to the working end (202).

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