Eye range finding positioning tweezers

Abstract

The utility model relates to the field of vitreous body positioning medical instruments, and provides ophthalmic ranging positioning tweezers which comprise a tweezers body provided with a handle part, connecting parts and a tip part, the ophthalmic ranging positioning tweezers comprise a ranging rod and a scale part, the ranging rod is arranged on one connecting part and is perpendicular to the corresponding connecting part, and the scale part is arranged on the handle part. The scale part is arranged on the ranging rod in the direction away from the connecting part, a clamping part is formed at the contact part of the two tip parts, and the scale part is used for marking the distance between the scale part and the clamping part. When vitreous body medicine injection is carried out, the safe distance can be measured through the scale portion on the distance measuring ruler only by holding the tweezers body by hand, when corresponding scales on the scale portion are aligned with the cornea sclera edge, the position where the tweezers body is located is a fixed point, and at the moment, the tweezers body can be used for clamping the conjunctiva. According to the utility model, through the ranging rod and the scale part, the operation of measuring the safe distance and clamping the conjunctiva is coherent without replacing instruments, so that the use difficulty and the labor cost are reduced.

Description

Technical Field

[0001] This application relates to the field of vitreous positioning medical devices, and particularly to an ophthalmic ranging and positioning forceps. Background Art

[0002] Vitreous injection is an ophthalmic surgical technique mainly used to treat fundus diseases such as macular degeneration, retinal vein occlusion, diabetic retinopathy, etc. Once intraocular infection is highly suspected, intravitreal drug and steroid injections should be performed in a timely manner. By directly injecting drugs into the vitreous cavity, the intraocular drug concentration can be increased and systemic side effects can be reduced, thus more effectively treating fundus lesions.

[0003] When performing vitreous injection, after preoperative preparation and under aseptic conditions, the doctor uses a thin needle to puncture through the sclera into the vitreous cavity and slowly injects the drug. Puncturing the vitreous cavity should avoid hitting the lens, so it is necessary to measure the safe distance from the needle entry position to the corneal-scleral limbus before inserting the needle. The existing method is to repeatedly measure and confirm the fixed point using a goniometer, and then use forceps in one hand to clamp the conjunctiva at the fixed point to fix the eye position while holding the syringe in the other hand for puncture. However, the instruments used for measuring the safe distance and clamping the conjunctiva are different, and it is necessary to change the instruments in hand. Due to the discontinuous operation, it is easy to cause the forceps not to clamp the conjunctiva at the fixed point. If the patient's eyeball rotates when changing the instruments in hand, it is necessary to re-measure the safe distance, which is very cumbersome. Content of the Utility Model

[0004] In view of the above deficiencies of the prior art, the purpose of this application is to provide an ophthalmic ranging and positioning forceps, aiming to solve the drawback that the existing vitreous injection instruments are not easy to clamp the conjunctiva at a determined fixed point.

[0005] The technical solution adopted by this application to solve the technical problem is as follows: An ophthalmic ranging and positioning forceps, including a forceps body having a handle portion, a connecting portion, and a tip portion, the ophthalmic ranging and positioning forceps includes: a ranging ruler, the ranging ruler is arranged on one of the connecting portions, and the ranging ruler is perpendicular to the corresponding connecting portion;

[0006] A scale portion, the scale portion is arranged on the ranging ruler along the direction away from the connecting portion, and the part where the two tip portions contact forms a clamping portion, and the scale portion is used to mark the distance between it and the clamping portion.

[0007] Further, the ranging ruler is rotatably arranged on the connecting portion around the connecting portion.

[0008] Further, the connecting portion is recessed to form the connecting portion;

[0009] The ranging ruler includes: a connecting ring, and the connecting ring is rotatably sleeved on the connecting portion;

[0010] The distance measuring part is arranged on the connecting ring, and the scale part is arranged on the distance measuring part.

[0011] Furthermore, the length of the distance measuring part is not less than 5 mm.

[0012] Furthermore, the distance measuring portion is a transparent distance measuring portion, and one end of the distance measuring portion away from the connecting portion is inclined toward the direction of the handle portion.

[0013] Furthermore, the length of the distance measuring portion in directions perpendicular to the connecting portion and the scale portion is no more than 2 mm.

[0014] Furthermore, the distance measuring ruler further comprises: an arcuate groove, the arcuate groove is arranged through one end of the distance measuring part away from the connecting part, and the axis of the arcuate groove is parallel to the corresponding connecting part.

[0015] Furthermore, the distance measuring ruler further comprises: a level meter, which is arranged on the distance measuring part, and is used to detect the horizontality of the distance measuring part in a direction away from the connecting part.

[0016] Furthermore, the level is a bubble level, and the bubble level is embedded in the distance measuring part.

[0017] Furthermore, the bubble level and the scale portion are arranged on the distance measuring portion at intervals in a direction away from the connecting portion.

[0018] Compared with the prior art, the utility model only needs to hold the tweezers body with one hand to measure the safety distance through the scale part on the distance measuring ruler when implementing vitreous injection. When the corresponding scale on the scale part is aligned with the corneal scleral margin, the position of the tweezers body is the fixed point. At this time, the tweezers body can be used to clamp the conjunctiva. The utility model uses the distance measuring ruler and the scale part to make the operations of measuring the safety distance and clamping the conjunctiva continuous without changing the instrument, thereby reducing the difficulty of use and labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of the overall structure of the eye distance measuring and positioning forceps provided in this embodiment at a viewing angle;

[0021] Figure 2 It is a schematic diagram of the overall structure of the ophthalmic ranging positioning forceps provided in this embodiment from another perspective;

[0022] Figure 3 is this embodiment Figure 2 The partial enlarged structural schematic diagram of part A.

[0023] In the figure: 10, forceps body; 11, handle part; 12, connecting part; 13, tip part; 20, ranging ruler; 21, connecting ring; 22, ranging part; 221, scale part; 23, arc-shaped groove; 30, level; 40, eyeball. Detailed implementation manners

[0024] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "plurality" is two or more.

[0026] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0027] In addition, the technical features involved in different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0028] The utility model provides Figures 1 to 3 As shown in the figure, an eye distance measuring and positioning forceps is intended to solve the disadvantage that the existing vitreous injection device is not easy to clamp the conjunctiva at a certain fixed point.

[0029] The eye distance measuring and positioning forceps mainly include: a forceps body 10 having a handle portion 11, a connecting portion 12, and a tip portion 13. The handle portion 11 is the part for the user to hold, and the tip portion 13 is the part for clamping the conjunctiva.

[0030] The eye distance measuring and positioning forceps include: a distance measuring ruler 20, which is arranged on one of the connecting parts 12, and the distance measuring ruler 20 and the corresponding connecting part 12 are perpendicular to each other. In actual use, the medical staff holds the forceps body 10 so that the tip 13 is aligned with the patient's eyeball 40. At this time, the forceps body 10 is preferably kept vertical so that the distance measuring ruler 20 is kept horizontal to facilitate alignment with the eyeball 40 for measurement, so as to ensure that the measured result has good accuracy. The scale part 221 is arranged on the distance measuring ruler 20 in a direction away from the connecting part 12, and the part where the two tip parts 13 contact each other forms a clamping part, which contacts the conjunctiva to clamp the conjunctiva, and the scale part 221 is used to mark the distance between it and the clamping part.

[0031] When performing vitreous injection, after preoperative preparation, under sterile conditions, the doctor uses a fine needle to puncture the vitreous cavity through the sclera and slowly injects the drug. When puncturing the vitreous cavity, it is necessary to avoid piercing the lens, so before inserting the needle, it is necessary to measure the safe distance between the needle insertion position and the corneal scleral margin. The current practice is to use an angle gauge to repeatedly measure and confirm the fixed point, then use tweezers to clamp the conjunctiva at the fixed point to fix the eye position, and then use the other hand to hold the syringe for puncture. However, the instruments used to measure the safe distance and clamp the conjunctiva are different, and the instruments on hand need to be replaced. Due to the inconsistent operation, it is easy for the tweezers to not clamp the conjunctiva at the fixed point. If the patient's eyeball rotates 40 degrees when changing the instrument on hand, the safe distance needs to be measured again, which is very cumbersome.

[0032] During vitreous injection, the utility model only needs to hold the forceps body 10 in one hand to measure the safety distance through the scale part 221 on the distance measuring ruler 20; when the corresponding scale on the scale part 221 is aligned with the corneal scleral margin, the position of the forceps body 10 is the fixed point, and the forceps body 10 can be used to clamp the conjunctiva at this time; the utility model uses the distance measuring ruler 20 and the scale part 221 to make the operations of measuring the safety distance and clamping the conjunctiva continuous without changing the instrument, thereby reducing the difficulty of use and the labor cost.

[0033] In some embodiments, Figures 1 to 3As shown in the figure, the distance measuring ruler 20 is rotatably arranged on the connecting portion 12 around the connecting portion 12. This facilitates medical staff to adjust the direction of the distance measuring ruler 20. When the medical staff determines the distance through the distance measuring ruler 20, the position where the forceps body 10 is located is the fixed point. At this time, the forceps body 10 can be used to clamp the conjunctiva. If the clamping direction of the forceps body 10 is not appropriate at this time, the syringe in the other hand can also be used to control the distance measuring ruler 20 so that the position of the distance measuring ruler 20 remains unchanged. By rotating the forceps body 10, the forceps body 10 can clamp the conjunctiva from different clamping directions.

[0034] In some embodiments, as Figures 1 to 3 As shown in the figure, the distance measuring ruler 20 further includes: an arc-shaped groove 23, which is provided through one end of the distance measuring portion 22 facing away from the connecting portion 12, and the axis of the arc-shaped groove 23 is parallel to the corresponding connecting portion 12. Specifically, when the clamping direction of the forceps body 10 is not appropriate, the syringe in the other hand can be stuck in the arc-shaped groove 23 to control the distance measuring ruler 20 so that the position of the distance measuring ruler 20 remains unchanged. At this time, by rotating the forceps body 10, the forceps body 10 can conveniently clamp the conjunctiva from different clamping directions.

[0035] In some embodiments, the connecting portion 12 is recessed to form the connecting portion 12( Figures 1 to 3 both are blocked by the connecting ring 21 in the figure);

[0036] The distance measuring ruler 20 includes: a connecting ring 21, which is rotatably sleeved on the connecting portion 12;

[0037] A distance measuring portion 22, which is arranged on the connecting ring 21, and a scale portion 221 is arranged on the distance measuring portion 22.

[0038] In some embodiments, as Figures 1 to 3 As shown in the figure, the length of the distance measuring portion 22 is not less than 5 millimeters, which can better measure the safe distance.

[0039] In some embodiments, as Figures 1 to 3 As shown in the figure, the distance measuring portion 22 is a transparent distance measuring portion 22, which avoids blocking the line of sight of medical staff and facilitates medical staff to observe and determine the position of the corneoscleral limbus. One end of the distance measuring portion 22 facing away from the connecting portion 12 is inclined towards the direction of the handle portion 11. When the distance measuring portion 22 is too close to the patient's eyeball 40, since one end of the distance measuring portion 22 facing away from the connecting portion 12 is relatively sharp, this structure can reduce the discomfort of the patient and also reduce the risk of the distance measuring portion 22 stabbing the patient's eyeball 40.

[0040] In some embodiments, as Figures 1 to 3As shown in the figure, the length of the distance measuring part 22 in the direction perpendicular to the connecting part 12 and the scale part 221 respectively is not greater than 2 mm, so that the "width" of the distance measuring part 22 is as small as possible, avoiding blocking the line of sight of medical staff and facilitating the medical staff to observe and determine the position of the corneal limbus.

[0041] In some embodiments, as Figure 3 As shown in the figure, the distance measuring ruler 20 further includes: a level 30, and the level 30 is arranged on the distance measuring part 22. The level 30 is used to detect the levelness of the distance measuring part 22 in the direction away from the connecting part 12. The levelness of the distance measuring part 22 can be detected by the level 30, which is convenient for medical staff to adjust the levelness of the distance measuring part 22 during use, so that the distance measuring ruler 20 is kept horizontal and convenient to align with the eyeball 40 for measurement, so as to ensure that the measured result has good accuracy.

[0042] In some embodiments, as Figure 3 As shown in the figure, the level 30 is a bubble level 30, and the bubble level 30 is embedded in the distance measuring part 22. The bubble level 30 has a simple structure and has good reference value for the levelness of the distance measuring part 22.

[0043] In some embodiments, as Figure 3 As shown in the figure, the bubble level 30 and the scale part 221 are arranged on the distance measuring part 22 at intervals in the direction away from the connecting part 12.

[0044] In summary, an ophthalmic distance measuring and positioning forceps is provided, which includes a forceps body having a handle part, a connecting part and a tip part. The ophthalmic distance measuring and positioning forceps includes a distance measuring ruler and a scale part. The distance measuring ruler is arranged on one of the connecting parts, and the distance measuring ruler is perpendicular to the corresponding connecting part. The scale part is arranged on the distance measuring ruler in the direction away from the connecting part. The part where the two tip parts are in contact forms a clamping part. The scale part is used to mark the distance between it and the clamping part. When implementing intravitreal injection, the present invention only needs to hold the forceps body with one hand to measure the safe distance through the scale part on the distance measuring ruler. When the corresponding scale on the scale part is aligned with the corneal limbus, the position where the forceps body is located is the fixed point. At this time, the forceps body can be used to clamp the conjunctiva. Through the distance measuring ruler and the scale part, the present invention makes the operations of measuring the safe distance and clamping the conjunctiva coherent without replacing instruments, reducing the use difficulty and labor cost.

[0045] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. An ophthalmic ranging and positioning forceps, comprising a forceps body having a handle portion, a connecting portion, and a tip portion, characterized in that, The ophthalmic ranging and positioning forceps include: a ranging scale, the ranging scale is arranged on one of the connecting parts, and the ranging scale is perpendicular to the corresponding connecting part; a scale part, the scale part is arranged on the ranging scale along the direction away from the connecting part, the part where the two pointed ends contact forms a clamping part, and the scale part is used to mark the distance between it and the clamping part.

2. The ophthalmic ranging and positioning forceps according to claim 1, wherein, The ranging scale is rotatably arranged on the connecting part around the connecting part.

3. The eye distance measuring and positioning forceps according to claim 2, wherein The connecting part is recessed to form the connecting part; The ranging scale includes: a connecting ring, the connecting ring is rotatably sleeved on the connecting part; a ranging part, the ranging part is arranged on the connecting ring, and the scale part is arranged on the ranging part.

4. The ophthalmic distance measuring and positioning forceps according to claim 3, characterized in that, The length of the ranging part is not less than 5 millimeters.

5. The eye distance measuring and positioning forceps according to claim 3, characterized in that, The ranging part is a transparent ranging part, and the end of the ranging part away from the connecting part is inclined towards the handle part.

6. The eye distance measuring and positioning forceps according to claim 3, characterized in that, The length of the ranging part in the directions perpendicular to the connecting part and the scale part respectively is not greater than 2 millimeters.

7. The ophthalmic ranging and positioning forceps according to claim 3, characterized in that, The ranging scale further includes: an arc-shaped groove, the arc-shaped groove is arranged through the end of the ranging part away from the connecting part, and the axis of the arc-shaped groove is parallel to the corresponding connecting part.

8. The ophthalmic ranging and positioning forceps according to claim 3, characterized in that, The ranging scale further includes: a level, the level is arranged on the ranging part, and the level is used to detect the levelness of the ranging part in the direction away from the connecting part.

9. The ophthalmic ranging and positioning forceps according to claim 8, characterized in that, The level is a bubble level, and the bubble level is embedded in the ranging part.

10. The eye distance measuring and positioning forceps according to claim 9, characterized in that, The bubble level and the scale part are arranged on the ranging part at intervals along the direction away from the connecting part.

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