Ocular surface imprinting cytology paster sampling tweezers

Abstract

The utility model discloses a pair of ocular surface imprinting cytology paster sampling tweezers, and belongs to the technical field of ophthalmology medical instruments. The sampling tweezers comprise tweezers handles, tweezers heads and a pressing module. The tweezers handle comprises a first tweezers arm and a second tweezers arm which are in mirror symmetry, one ends of the first tweezers arm and the second tweezers arm are fixedly connected, the other ends of the first tweezers arm and the second tweezers arm are opened to form a V shape and are connected with the two tweezers heads through a connecting part, arc-shaped protrusions are arranged on the tweezers arms, and pressing modules are sleeved at the top ends of the protrusions. A tweezers tool and a pressing tool are combined into a whole, the cambered surface design of the pressing module conforms to the radian of the human eye temporal conjunctiva, and the pressing module is made of a flexible material, so that the integrated operation of taking, placing and pressing the filter paper in the ocular surface imprinting cytology examination is realized, the sampling efficiency, uniformity and safety are improved, and the sampling efficiency is improved. And risks of instrument replacement and cross contamination are reduced.

Description

Technical Field

[0001] This utility model relates to an ophthalmic sticker placement and removal device, particularly suitable for sticker sampling forceps in imprint cytology examination. Background Technology

[0002] Ocular surface imprint cytology is a routine ocular surface cytological examination method in ophthalmology. This examination uses a microporous filter membrane applied to the ocular surface to obtain cellular imprints. It is non-invasive, rapid, simple, and economical, and is helpful for the cytopathological diagnosis and analysis of ocular surface diseases, as well as guiding treatment and evaluating efficacy, thus having high value for widespread application.

[0003] During the examination, topical anesthesia (0.5% promecaine hydrochloride) is generally used to anesthetize the eyes. With the aid of blunt forceps, a 5×10mm strip of nitrocellulose acetate filter paper (0.22μm pore size) is applied to the subject's superior temporal conjunctiva. A cotton swab is gently pressed onto the paper, and after 2-3 seconds, it is removed with a peeling motion and placed in a container containing a fixative containing distilled alcohol. After staining, the integrity of epithelial cells, squamous metaplasia, epithelial keratinization, goblet cell density, and the presence of inflammatory cells can be observed, thus revealing the progression of diseases such as dry eye.

[0004] Traditional sampling methods using ophthalmic micro-forceps or flat forceps have drawbacks, including uneven gripping of the filter paper for imprint cytology, which can damage the filter paper. Furthermore, micro-forceps can cause sharp damage to the conjunctiva during use, resulting in iatrogenic injury. Additionally, tools commonly used clinically for pressing stickers and sampling include cotton swabs and sterile glass rods. During sampling, these methods suffer from uneven pressure on the sticker, difficulty in controlling the pressure applied, and can also cause conjunctival damage. Currently, there is an ocular surface imprint cytology sampling system (CN201610561946.4) designed for imprint cytology examination, including a sample box and a pen-type sampler, which allows for flexible adjustment of the pressure applied to the filter paper. However, this system is cumbersome to use and makes it difficult to coordinate the pressing and removal of the filter paper. In conclusion, existing methods and patents still cannot effectively meet clinical needs. We need to design new sampling forceps and pressing tools specifically for imprint cytology to improve these methods. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings in the above-mentioned background technology and to propose a sticker sampling tweezers suitable for imprint cytology examination.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An ocular surface imprint cytology sticker sampling tweezers includes a tweezer handle, tweezer heads, and a pressing module. The tweezer handle includes a first tweezer arm and a second tweezer arm, which are mirror-symmetrical. One end of the first tweezer arm and the second tweezer arm are fixedly connected, and the other end is opened into a V-shape and connected to the two tweezer heads by a connecting part.

[0008] As a further embodiment, the first tweezer arm and the second tweezer arm are each provided with a protrusion at the section away from the fixed connection, forming an arc-shaped structure, with the first pressing module and the second pressing module respectively fitted at the top of the arc.

[0009] In a further embodiment, all pressing modules are made of rubber; the first pressing module includes a first pressing arc surface and a through hole, and the second pressing module includes a second pressing arc surface and a through hole; all pressing modules are connected to the tweezer arm through the through hole.

[0010] As a further embodiment, the curvature of the first pressing arc surface conforms to the curvature of the temporal conjunctiva of the left eye, and the curvature of the second pressing arc surface conforms to the curvature of the temporal conjunctiva of the right eye.

[0011] As a further embodiment, the connecting part is a bolted connection, including a bolt, a washer, and a nut; the bolt has threads, the nut has an internally threaded hole in the middle, and the washer has a through hole; the end of the tweezers handle away from the fixed connection has a groove inside, and the inner and outer walls of the groove have a first connecting through hole; the end of the tweezers head connected to the tweezers handle has a protrusion that matches the size of the groove, and the protrusion has a second connecting through hole that communicates with the first connecting through hole; the bolt passes through the first connecting through hole, the second connecting through hole, and the washer in sequence, and is fixed to the other side of the tweezers handle with a nut.

[0012] As a further improvement, the outer side of the tweezers handle has equidistant anti-slip textures.

[0013] As a further solution, there are three weight-reducing holes at the lower end of the anti-slip texture.

[0014] As a further solution, the surface of the tweezers head is covered with a disposable rubber sleeve, and the inside is made of 316 stainless steel.

[0015] The advantages of this utility model are as follows:

[0016] 1. The tweezers of this utility model are equipped with a pressing module. The arc surface of the pressing module conforms to the curvature of the temporal conjunctiva, which is suitable for uniform pressing when sampling with filter paper. The rubber material is used to reduce damage to the conjunctiva.

[0017] 2. The tweezers of this utility model have rubber material on the surface of the tweezers head to increase the comfort of the tweezers head and reduce the damage to the conjunctiva of the eye when picking up and putting down filter paper.

[0018] 3. This utility model of tweezers combines the tweezers body with a pressing tool, avoiding the need to frequently change instruments during the 2-3 second pressing process when sampling, which can improve the operating efficiency of medical staff and has practicality and convenience.

[0019] 4. This utility model of forceps features a connecting part that allows the forceps head to be detachably connected to the forceps handle via a bolt connection, enabling the forceps head to be replaced during impression cytology examination. Simultaneously, the pressing module can also be removed and replaced via the connecting part, avoiding cross-contamination between different eyeballs and improving the safety and practicality of the forceps.

[0020] 5. The tweezers of this utility model are designed with anti-slip texture, which makes it easier for users to operate flexibly when pressing the filter paper and reduces hand slippage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of tweezers according to an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram illustrating the structure and use of the pressing module according to an embodiment of the present invention.

[0023] Figure 3 This is a diagram showing the bolt structure of the connection portion according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the tweezer arms and tweezers heads docking at the connection point according to an embodiment of the present invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Tweezer handle, 1.1. First tweezer arm, 1.2. Tweezer head, 2. Pressing module, 3.1. First pressing module, 3.11. Arc surface of first pressing module, 3.2. Second pressing module, 3.21. Through hole, 3.3. Connecting part, 4. Bolt, 4.1. Thread, 4.2. Nut, 4.4. Internal threaded hole, 4.5. Washer, 5. Protrusion, 5.1. Second connecting hole, 6. Groove, 6.1. First connecting hole, 7. Anti-slip texture, 8. Weight reduction hole. Detailed Implementation

[0027] Please see Figures 1 to 4 As shown, this embodiment provides an ocular surface imprint cytology sticker sampling forceps, including a forceps handle (1), a forceps head (2), and a pressing module (3). The forceps handle (1) includes a first forceps arm (1.1) and a second forceps arm (1.2), which are mirror-symmetrical and unfold in a V-shape through a fixed connection at one end. Meanwhile, the surface of the forceps head (2) is covered with a disposable rubber sleeve, and its interior is made of 316 stainless steel, which improves the safety of sampling.

[0028] like Figure 2 As shown, both the first forceps arm (1.1) and the second forceps arm (1.2) have arc-shaped protrusions on the section away from the fixed connection. The top of the protrusions is fitted with the first pressing module (3.1) and the second pressing module (3.2), respectively. The pressing module (3) is made of flexible rubber, which can effectively reduce damage to the conjunctiva of the eye surface. The pressing module is fixed to the forceps arm through the through hole (3.3), and its first pressing arc surface (3.11) and second pressing arc surface (3.21) are adapted to the curvature of the temporal conjunctiva of the left and right eyes, respectively.

[0029] like Figure 3 and Figure 4 As shown, the connection between the tweezers head (2) and the tweezers handle (1) is achieved through the connecting part (4). The connecting part includes a bolt (4.1), a washer (4.5), and a nut (4.3), which are connected by bolts to achieve detachable fixation. The groove (6) at one end of the tweezers handle and the protrusion (5) at one end of the tweezers head cooperate to ensure installation stability.

[0030] During the sticker sampling process, medical staff can remove the rubber sleeves from the pressing module and tweezers for cleaning or replacement as needed to avoid cross-contamination between different patients. During operation, place the filter paper on the curved surface of the pressing module and apply gentle pressure to achieve uniform sampling of ocular surface cells.

[0031] The improvements of this utility model are reflected in the following aspects: the rubber pressing module significantly improves the uniformity of filter paper sampling and reduces sample deviation caused by uneven pressing in traditional tools; the modular design enables flexible replacement of the tweezers head and the pressing module, enhancing the applicability and convenience of the instrument.

Claims

1. An ocular surface imprint cytology sticker sampling forceps comprising a forceps handle (1), a forceps head (2), a pressing module (3), characterized in that, The forceps handle (1) comprises a first forceps arm (1.1) and a second forceps arm (1.2), the first forceps arm (1.1) and the second forceps arm (1.2) are mirror-symmetrical, and one end of the first forceps arm (1.1) and the second forceps arm (1.2) is fixedly connected, the other end is opened in a V shape, and is connected with two forceps heads (2) through a connecting part (4).

2. An ocular surface imprint cytology adhesive sticker sampling forceps according to claim 1, wherein, The first forceps arm (1.1) and the second forceps arm (1.2) are provided with a protrusion, which is in an arc-shaped structure, and the top end of the arc-shaped structure is sleeved with a pressing module (3) comprising a first pressing module (3.1) and a second pressing module (3.2).

3. An ocular surface imprint cytology adhesive sticker sampling forceps according to claim 2, wherein, The pressing module (3) is made of rubber; the first pressing module (3.1) comprises a first pressing arc surface (3.11) and a through sleeve hole (3.3), and the second pressing module (3.2) comprises a second pressing arc surface (3.21) and a through sleeve hole (3.3); the pressing module (3) is sleeved with the forceps arm through the through sleeve hole (3.3).

4. An ocular surface imprint cytology adhesive sticker sampling forceps according to claim 3, wherein, The curvature of the first pressing arc surface (3.11) conforms to the curvature of the left temporal conjunctiva of the human eye, and the curvature of the second pressing arc surface (3.21) conforms to the curvature of the right temporal conjunctiva of the human eye.

5. The ocular surface imprint cytology adhesive patch sampling forceps of claim 1, wherein, The connecting part (4) is a bolt connection comprising a bolt (4.1), a washer (4.5) and a nut (4.3); the bolt (4.1) is provided with threads (4.2), the nut is provided with an internal thread hole (4.4) in the middle, and the washer (4.5) is provided with a through hole; the forceps handle (1) is provided with a groove (6) in the inside of the end away from the fixed connection, and the inside and outside walls of the groove are provided with a first connecting through hole (6.1); the end of the forceps head (2) connected with the forceps handle (1) is provided with a protrusion (5) matching the groove (6) in size, and the protrusion is provided with a second connecting through hole (5.1) communicating with the first connecting through hole (6.1); the bolt (4.1) passes through the first connecting through hole (6.1), the second connecting through hole (5.1) and the washer (4.5) in sequence, and is fixed on the other side of the forceps handle by the nut (4.3).

6. An ocular surface imprint cytology adhesive sticker sampling forceps according to claim 1, wherein, The outer side of the forceps handle (1) is provided with anti-skid lines (7) arranged at equal intervals.

7. An ocular surface imprint cytology adhesive patch sampling forceps according to claim 6, wherein, The forceps handle (1) is provided with three lightening holes (8) at the lower end of the anti-skid lines (7).

8. The ocular surface imprint cytology adhesive patch sampling forceps according to claim 1, wherein, The surface of the forceps head (2) is sleeved with a disposable rubber sleeve, and the inside is made of 316 stainless steel.

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