TICL preoperative astigmatism axial marker and placer and marking method thereof

Abstract

The invention relates to a TICL preoperative astigmatism axial position marker and a placer and a marking method thereof, the TICL preoperative astigmatism axial position marker comprises an identification block, the bottom surface of the identification block is a contact surface used for being attached to an eyeball of a patient, and the top surface of the identification block is an identification surface used for observation of an operator; and the bottom surface of the identification block is provided with a groove which is sunken inwards. According to the technical scheme, the identification block is fixed to the cornea under the action of air pressure adsorption, only slight pressing is needed during installation, the operation difficulty can be lowered, and meanwhile the risk of injury to the cornea of a patient can be lowered.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a TICL preoperative astigmatism axis marker, a placer and a marking method thereof. Background Art

[0002] Before TICL surgery, the astigmatism axis needs to be marked. The patent document with application number CN202222651432.1 discloses an astigmatism axis marking device for ophthalmic TICL surgery, including a positioning mechanism, which includes an operating rod, a light-emitting component arranged on one end of the operating rod and an adjustment component arranged on the other end of the operating rod; the marking mechanism includes a marking part and a fixing component, wherein the marking part is symmetrically rotated on the operating rod and is located on the same side as the light-emitting component; the fixing component is symmetrically arranged on the operating rod and is used to limit the marking part, and through the cooperation of the light-emitting component and the adjustment component, the fixing component is assisted to confirm the positioning of the marking part at the opening angle, and then the marking part is driven by the operating rod to mark. The overall structure is simple and easy to popularize, and the operation marking is fast and accurate, which improves work efficiency. At the same time, rapid marking can avoid the irresistible factor of blinking during operation, thereby reducing the risk factor of operation.

[0003] The method of marking the cornea in this scheme is to "press the cornea to leave a marking mark", but the cornea is relatively soft and fragile. If the pressure is too light, no marking mark will be left, while pressing too hard can easily cause damage to the cornea, making it difficult to control the operating force during the pressing process, making the operation difficult and posing a great surgical risk. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a TICL preoperative astigmatism axis marker and its placer and marking method, so as to solve the problem that the prior art forms marking marks on the cornea by pressing, it is difficult to control the operating force during the pressing process, the operation is difficult and there is a great surgical risk.

[0005] The present invention is achieved through the following technical solutions:

[0006] A TICL preoperative astigmatism axis marker, comprising a marking block, wherein the bottom surface of the marking block is a contact surface for fitting with a patient's eyeball, and the top surface of the marking block is an identification surface for observation by an operator;

[0007] The bottom surface of the identification block is provided with an inwardly recessed groove.

[0008] It is further defined that the bottom surface of the identification block is provided with an elastic membrane, the edge of the elastic membrane is connected to the edge of the bottom surface of the identification block, and the elastic membrane is a plane closed to the opening of the groove when in a freely stretched state;

[0009] A first magnetic block is installed at the center of the elastic film, and a second magnetic block that attracts the first magnetic block is detachably connected to the top surface of the identification block.

[0010] It is further defined that a first placement groove is provided on a side of the elastic film facing the groove, and the first magnetic attraction block is fixedly installed in the first placement groove;

[0011] The top surface of the identification block is provided with a second placement groove, and the second magnetic attraction block is detachably installed in the second placement groove.

[0012] It is further defined that the first magnetic block is a magnetic metal block, and the second magnetic block is a permanent magnet;

[0013] Alternatively, the first magnetic block is a permanent magnet, and the second magnetic block is a magnetic metal block.

[0014] It is further defined that the edge of the elastic membrane is integrally formed with an elastic ring extending upward, and the elastic ring is sleeved with the edge of the bottom surface of the identification block.

[0015] It is further defined that a circular sink is provided on the side of the bottom surface of the identification block, and the elastic ring is sleeved on the circular sink.

[0016] It is further defined that the top surface of the identification block protrudes upward to form a spherical structure, and the connection between the edge of the top surface of the identification block and the side wall is arc-shaped.

[0017] A placer includes a first operating rod for fixing an identification block and a second operating rod for placing a second magnetic block. The first operating rod is a tubular structure, the second operating rod is slidably connected inside the first operating rod, and a flexible collar is installed at the front end port of the first operating rod.

[0018] It is further defined that the front end of the first operating rod is provided with an inwardly protruding adsorption portion for adsorbing the second magnetic adsorption block;

[0019] A strip-shaped limiting groove extending in the axial direction is provided on the side surface of the second operating rod, and the strip-shaped limiting groove is engaged outside the adsorption portion;

[0020] The tail end of the first operating rod is provided with an end cover, and when the tail end of the second operating rod abuts against the end cover, the front end is flush with the front end of the first operating rod;

[0021] The tail end of the second operating rod is connected to a push rod that passes through the end cover and extends outward in the axial direction, and the tail end of the push rod is connected to a push block;

[0022] The push rod outer sleeve is provided with a support spring, and two ends of the support spring are respectively against the end cover and the push block.

[0023] A marking method comprises the following steps:

[0024] S001. Preoperative preparation: soak the identification block and the second magnetic block in sterile saline;

[0025] S002, picking up the identification block, firstly adsorbing the second magnetic block on the adsorption part, and then adsorbing the identification block on the front end of the first operating rod;

[0026] S003, placing the identification block, aligning the identification block with a predetermined position and pressing it on the cornea, and then pushing the second operating rod so that the front end of the second operating rod extends out of the front end of the first operating rod, and the identification block is pushed toward the first operating rod by the second operating rod, thereby achieving fixation of the identification block on the cornea.

[0027] The beneficial effects of the present invention are:

[0028] The TICL preoperative astigmatism axis marker, its placer and marking method utilize the effect of air pressure adsorption to fix the marker block on the cornea. During installation, only light pressing is required, which can reduce the difficulty of operation and the risk of causing damage to the patient's cornea.

[0029] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional marker of the astigmatism axis before TICL surgery Figure 1 ;

[0031] Figure 2 A three-dimensional marker of the astigmatism axis before TICL surgery Figure 2 ;

[0032] Figure 3 This is the front view of the astigmatism axis marker before TICL surgery;

[0033] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of AA;

[0034] Figure 5 It is a schematic diagram of the structure of the placer;

[0035] Figure 6 It is a schematic diagram of the structure of the position of the adsorption part at the front end of the first operating rod and the second operating rod;

[0036] Figure 7 This is a schematic diagram of the combined state of the astigmatism axis marker and the placement device before TICL surgery;

[0037] Figure 8 Schematic diagram of the position structure of the identification block in the adsorption state at the front end of the first operating rod and the second operating rod

[0038] In the figure: 1. identification block; 2. groove; 3. elastic membrane; 4. first magnetic block; 5. second magnetic block; 6. first placement groove; 7. second placement groove; 8. elastic collar; 9. annular sink; 10. first operating rod; 11. second operating rod; 12. flexible collar; 13. adsorption part; 14. strip limit groove; 15. end cover; 16. push rod; 17. push block; 18. support spring. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the above description of the present invention, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0043] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0044] See also Figure 1-4 The present invention provides a technical solution: a TICL preoperative astigmatism axis marker, comprising a marker block 1, wherein the bottom surface of the marker block 1 is a contact surface for fitting with the patient's eyeball, and the top surface of the marker block 1 is an identification surface for observation by an operator;

[0045] The bottom surface of the identification block 1 is provided with an inwardly recessed groove 2 .

[0046] The identification block 1 can be made of medical silica gel, which is a round block structure with a thickness of 0.5-1mm and a diameter of 1.5-2mm. The overall shape is stable and can maintain a round structure. A groove 2 is provided on the bottom surface. Before use, the identification block 1 needs to be immersed in physiological saline. After being taken out of the physiological saline, part of the physiological saline will remain in the groove 2 under the action of liquid tension and adsorption force. When the identification block 1 is pressed and placed on the cornea, the cornea will be deformed and part of it will protrude into the groove 2, squeezing out the physiological saline in the groove 2, so that the groove 2 and the cornea form an adsorption effect under the action of atmospheric pressure, so that the identification block 1 is fixed on the cornea.

[0047] The top surface of the identification block 1 can be painted with identification color or inlaid with particles with identification color for observation by medical staff;

[0048] In this solution, the effect of air pressure adsorption is used to fix the identification block 1 on the cornea. During installation, only light pressure is required, which can reduce the difficulty of operation and the risk of causing damage to the patient's cornea.

[0049] In this embodiment, an elastic membrane 3 is provided on the bottom surface of the identification block 1, the edge of the elastic membrane 3 is connected to the edge of the bottom surface of the identification block 1, and the elastic membrane 3 is a plane closed to the opening of the groove 2 when in a freely stretched state;

[0050] A first magnetic block 4 is installed at the center of the elastic membrane 3 , and a second magnetic block 5 that attracts the first magnetic block 4 is detachably connected to the top surface of the identification block 1 .

[0051] The elastic membrane 3 serves as a closed structure of the groove 2, and makes the bottom surface of the identification block 1 in a flat state when no force is applied. After the identification block 1 is placed on the cornea, by placing the second magnetic block 5 on the top surface of the identification block 1, the second magnetic block 5 will generate magnetic attraction with the first magnetic block 4, and pull the center of the elastic membrane 3 upward, so that the middle of the elastic membrane 3 is concave into the groove 2;

[0052] That is, after the identification block 1 is placed on the cornea, the elastic membrane 3 will be in full contact with the cornea, and it will be recessed under the interaction of the second magnetic block 5 and the first magnetic block 4, forming a negative pressure attraction state through the recess, so that the identification block 1 is fixed at the placement point of the cornea, which can improve the stability of the identification block 1 on the cornea and make it less likely to be displaced.

[0053] In this embodiment, a first placement groove 6 is provided on the side of the elastic membrane 3 facing the groove 2, and the first magnetic attraction block 4 is fixedly installed in the first placement groove 6;

[0054] The top surface of the identification block 1 is provided with a second placement groove 7 , and the second magnetic block 5 is detachably installed in the second placement groove 7 .

[0055] The first magnetic block 4 is fixed in the first placement groove 6, and can also be fixed on the elastic film 3 by adhesion or wrapping. The second placement groove 7 is used as the placement position of the second magnetic block 5, and the second magnetic block 5 is detachably installed therein, that is, the second magnetic block 5 can move freely in the second placement groove 7. When the second magnetic block 5 is in the second placement groove 7, it will be adsorbed in the second placement groove 7 under the action of the magnetic adsorption of the first magnetic block 4, and can also be clamped and removed from the second placement groove 7 by tools such as pointed tweezers;

[0056] When the second magnetic block 5 is removed, the first magnetic block 4 will lose magnetic traction, that is, the elastic membrane 3 will lose magnetic traction and return to a flat state, and the negative pressure adsorption state between the identification block 1 and the cornea will be cancelled, so it can be easily removed from the cornea;

[0057] The size of the second magnetic block 5 is preferably such that the top does not protrude outside the second placement groove 7 when placed in the second placement groove 7, so that no sharp points are formed to avoid scratching the eyelids when the patient blinks.

[0058] In this embodiment, the first magnetic block 4 is a magnetic metal block, and the second magnetic block 5 is a permanent magnet;

[0059] Alternatively, the first magnetic block 4 is a permanent magnet, and the second magnetic block 5 is a magnetic metal block.

[0060] The first magnetic attraction block 4 and the second magnetic attraction block 5 are respectively a permanent magnet and a magnetic metal block, so one is used to generate magnetic force and the other is used to sense the generated magnetic force, which is more convenient in use.

[0061] In this embodiment, an elastic ring 8 extending upward is integrally formed on the edge of the elastic membrane 3 , and the elastic ring 8 is sleeved with the bottom edge of the identification block 1 .

[0062] The elastic ring 8 is connected to the edge of the elastic membrane 3, and the elastic ring 8 is sleeved with the identification block 1. When the elastic ring 8 is in a supported expanded state, there will be an elastic storage force for inward contraction, that is, the initial diameter of the elastic ring 8 will be smaller than the diameter of the identification block 1. When it is installed on the identification block 1, it will be in an expanded state, and through its own elastic contraction, it can have a stable connection effect with the identification block 1. When the elastic sleeve expands, it can also synchronously pull the edge of the elastic membrane 3 outward, so that the elastic membrane 3 can remain flat and can better contact with the cornea when placed.

[0063] In this embodiment, an annular sink 9 is provided on the side of the bottom surface of the identification block 1 , and the elastic ring 8 is sleeved on the annular sink 9 .

[0064] The annular sink 9 serves as the connection position with the elastic collar 8. It accommodates the elastic collar 8 by sinking, thereby reducing the height difference between the side of the elastic collar 8 and the side of the identification block 1, making the surface of the overall structure smoother and reducing the discomfort caused by the contact with the eyelid when the patient blinks.

[0065] In this embodiment, the top surface of the identification block 1 protrudes upward and presents a spherical structure, and the connection between the edge of the top surface of the identification block 1 and the side wall is arc-shaped.

[0066] Make the edges of the overall structure smoother, further reducing the discomfort caused by contact with the eyelids when the patient blinks.

[0067] See also Figure 5-8 The present invention provides a technical solution: a placer, comprising a first operating rod 10 for fixing an identification block 1 and a second operating rod 11 for placing a second magnetic block 5, wherein the first operating rod 10 is a tubular structure, the second operating rod 11 is slidably connected inside the first operating rod 10, and a flexible collar 12 is installed at a port at the front end of the first operating rod 10.

[0068] The front end of the first operating rod 10 is provided with a flexible collar 12, which can be made of flexible silicone, and can better absorb the marking block 1 with saline solution, and can play a certain buffering role by deformation when subjected to force, thereby reducing the squeezing force on the patient's eyeball and thus reducing discomfort;

[0069] In addition, the flexible collar 12 and the first operating rod 10 are connected to form a through passage, and the second operating rod 11 can slide in the passage. When it is necessary to separate the identification block 1 and the first operating rod 10, the identification block 1 can be pushed away from the flexible collar 12 by pushing the second operating rod 11, which is simple and convenient to operate.

[0070] In this embodiment, the front end of the first operating rod 10 is provided with an inwardly protruding adsorption portion 13 for adsorbing the second magnetic block 5;

[0071] A strip-shaped limiting groove 14 extending in the axial direction is formed on the side of the second operating rod 11, and the strip-shaped limiting groove 14 is engaged with the outside of the adsorption portion 13;

[0072] The tail end of the first operating rod 10 is provided with an end cover 15, and when the tail end of the second operating rod 11 abuts against the end cover 15, the front end is flush with the front end of the first operating rod 10;

[0073] The tail end of the second operating rod 11 is connected to a push rod 16 that passes through the end cover 15 and extends outward in the axial direction, and the tail end of the push rod 16 is connected to a push block 17;

[0074] The push rod 16 is provided with a support spring 18 on its outer sleeve, and two ends of the support spring 18 are respectively against the end cover 15 and the push block 17 .

[0075] The adsorption portion 13 can be changed according to the properties of the second magnetic block 5. Specifically, when the second magnetic block 5 is a magnetic metal block, the adsorption portion 13 will be a permanent magnet. When the second magnetic block 5 is a permanent magnet, the adsorption portion 13 is a magnetic metal block.

[0076] In addition, the push rod 16 and the push block 17 are extended as the structure of the second operating rod 11, and will remain in the state of being located in the first operating rod 10 under the action of the support spring 18. In this state, the identification block 1 can be installed on the flexible ring 12, and the second magnetic block 5 can be adsorbed on the adsorption part 13, and the two are separated;

[0077] The strip limiting groove 14 and the adsorption portion 13 are slidably matched, that is, the second operating rod 11 will remain stable during the sliding process, and the position of the second magnetic block 5 will also be located close to the center of the end surface of the second operating rod 11, and can be pushed away better.

[0078] A marking method comprises the following steps:

[0079] S001, preoperative preparation, soak the identification block 1 and the second magnetic block 5 in sterile saline;

[0080] S002, pick up the identification block 1, first adsorb the second magnetic block 5 on the adsorption part 13, and then adsorb the identification block 1 on the front end of the first operating rod 10;

[0081] S003, placing the identification block 1, aligning the identification block 1 to a predetermined position, and pressing it on the cornea, and then pushing the second operating rod 11 so that the front end of the second operating rod 11 extends out of the front end of the first operating rod 10, and the identification block 1 is pushed against the first operating rod 10 by the second operating rod 11, so that the identification block 1 is fixed on the cornea.

[0082] This method uses the effect of air pressure adsorption to fix the marker block 1 on the cornea. During installation, it only requires gentle pressing, which can reduce the difficulty of operation and the risk of causing damage to the patient's cornea.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A TICL preoperative astigmatism axis marker, comprising a marker block, characterized in that: The bottom surface of the identification block is a contact surface for fitting with the patient's eyeball, and the top surface of the identification block is an identification surface for observation by an operator; The bottom surface of the identification block is provided with an inwardly recessed groove.

2. The astigmatism axis marker for TICL preoperative surgery according to claim 1, characterized in that: The bottom surface of the identification block is provided with an elastic membrane, the edge of the elastic membrane is connected to the edge of the bottom surface of the identification block, and the elastic membrane is a plane closed in the opening of the groove when in a freely stretched state; A first magnetic block is installed at the center of the elastic film, and a second magnetic block that attracts the first magnetic block is detachably connected to the top surface of the identification block.

3. The TICL preoperative astigmatism axis marker according to claim 2, characterized in that: The elastic film is provided with a first placement groove on one side facing the groove, and the first magnetic attraction block is fixedly installed in the first placement groove; The top surface of the identification block is provided with a second placement groove, and the second magnetic attraction block is detachably installed in the second placement groove.

4. The TICL preoperative astigmatism axis marker according to claim 2, characterized in that: The first magnetic block is a magnetic metal block, and the second magnetic block is a permanent magnet; Alternatively, the first magnetic block is a permanent magnet, and the second magnetic block is a magnetic metal block.

5. The TICL preoperative astigmatism axis marker according to claim 2, characterized in that: An elastic ring extending upward is integrally formed on the edge of the elastic membrane, and is sleeved with the edge of the bottom surface of the identification block through the elastic ring.

6. The TICL preoperative astigmatism axis marker according to claim 5, characterized in that: An annular sinking platform is arranged on the side of the bottom surface of the identification block, and the elastic sleeve is sleeved on the annular sinking platform.

7. The TICL preoperative astigmatism axis marker according to claim 6, characterized in that: The top surface of the identification block protrudes upward and presents a spherical structure, and the connection between the edge of the top surface of the identification block and the side wall is arc-shaped.

8. A placement device for placing the TICL preoperative astigmatism axis marker on the eyeball as described in claims 1 to 7, characterized in that: It includes a first operating rod for fixing the identification block and a second operating rod for placing the second magnetic block. The first operating rod is a tubular structure. The second operating rod is slidably connected inside the first operating rod. A flexible ring is installed at the front end of the first operating rod.

9. The placement device according to claim 8, characterized in that: The front end of the first operating rod is provided with an inwardly protruding adsorption portion for adsorbing the second magnetic adsorption block; A strip-shaped limiting groove extending in the axial direction is provided on the side surface of the second operating rod, and the strip-shaped limiting groove is engaged outside the adsorption portion; The tail end of the first operating rod is provided with an end cover, and when the tail end of the second operating rod abuts against the end cover, the front end is flush with the front end of the first operating rod; The tail end of the second operating rod is connected to a push rod that passes through the end cover and extends outward in the axial direction, and the tail end of the push rod is connected to a push block; The push rod outer sleeve is provided with a support spring, and two ends of the support spring are respectively against the end cover and the push block.

10. A marking method, characterized in that: Using the placement device as described in claim 9 to place and fix the TICL preoperative astigmatism axis marker as described in any one of claims 1 to 7 on the cornea; The steps include: S001. Preoperative preparation: soak the identification block and the second magnetic block in sterile saline; S002, picking up the identification block, firstly adsorbing the second magnetic block on the adsorption part, and then adsorbing the identification block on the front end of the first operating rod; S003, placing the identification block, aligning the identification block with a predetermined position and pressing it on the cornea, and then pushing the second operating rod so that the front end of the second operating rod extends out of the front end of the first operating rod, and the identification block is pushed toward the first operating rod by the second operating rod, thereby achieving fixation of the identification block on the cornea.

Images