Cornea puncture knife

Abstract

The invention relates to the field of surgical instruments, in particular to a cornea puncture knife which comprises a knife body, the right side of the knife body is connected with a supporting arm, the left side of the supporting arm is fixedly connected with a limiting plate, the limiting plate is parallel to the knife body, a gap is formed between the knife body and the supporting arm, a fillet is arranged on the left side of the limiting plate, and the fillet is arranged on the right side of the limiting plate. The top of the supporting arm is connected with an inserting rod. In the operation process, it is convenient to observe that the tip end of the scalpel body advances between cornea layers, a gap is reserved between the scalpel body and the supporting arm, a cornea anterior lamella is located in the gap, the thickness of the anterior lamella is always kept consistent along with advancing of the scalpel tip in the cornea layers, the cornea anterior lamella cannot be damaged when the scalpel is punctured into eyes by arranging the filleted corner, and the operation efficiency is improved. By effectively controlling the consistency of the interlayer depth of the knife body in the cornea interlayer puncture process, the sealing performance of an operative incision is improved, then the infection rate after an operation is reduced, and the safety of the operation is improved.

Description

Technical Field

[0001] The invention relates to the field of surgical instruments, in particular to a corneal puncture knife. Background Art

[0002] During ophthalmic surgery, corneal puncture is required. To improve the airtightness of the puncture port after puncture, the operator needs to control the entire blade to advance slowly and gradually between the 1 / 3-1 / 2 layers of the cornea (between the anterior and posterior layers) during the puncture process after the puncture knife enters the corneal layers, forming a tunnel between the corneal layers. Only when the front tip of the blade body advances to a certain range can it penetrate the posterior 1 / 2-2 / 3 layers of the cornea and enter the eyeball.

[0003] The depth of the blade between the corneal layers is controlled purely by the surgeon's feel, especially in the process of the blade entering the corneal layers to completely piercing the cornea into the eyeball. The depth of the blade between the corneal layers may change. The more novice the operator is, the greater the amplitude of this depth change, resulting in a large variation in the thickness values ​​of the anterior and posterior corneal layers, affecting the airtightness of the puncture port, and easily causing postoperative intraocular infection or even corneal rupture.

[0004] Therefore, we make improvements to this and propose a corneal puncture knife. Summary of the invention

[0005] The purpose of the present invention is to control the depth of the knife body between the corneal layers by hand. The greater the amplitude of the change in the depth of the knife body between the corneal layers, the greater the variation in the thickness values ​​of the anterior and posterior corneal layers, which affects the airtightness of the puncture port and is prone to cause postoperative intraocular infection.

[0006] In order to achieve the above-mentioned purpose of the invention, the present invention provides a corneal puncture knife to improve the above-mentioned problem.

[0007] The specific application is as follows:

[0008] A corneal puncture knife comprises a knife body, wherein the right side of the knife body is connected to a support arm, the left side of the support arm is fixedly connected to a limit plate, the limit plate is parallel to the knife body, a gap is arranged between the knife body and the support arm, a chamfer is arranged on the left side of the limit plate, an insertion rod is connected to the top of the support arm, and a first sleeve is arranged on the surface of the insertion rod.

[0009] As a preferred technical solution of the present application, a positioning mechanism is installed on the surface of the first sleeve, and the positioning mechanism includes a rotating sleeve, which is threadedly sleeved on the surface of the first sleeve, and the top of the rotating sleeve is connected to a wide mask, and the inner cavity of the wide mask is provided with a guide rod, one side of the guide rod is in contact with the inner wall of the wide mask, and the other side of the guide rod passes through the inner cavity of the first sleeve and is connected to a clamp ring.

[0010] As a preferred technical solution of the present application, the inner wall of the clamp ring contacts the insertion rod, a spring is sleeved on the surface of the guide rod, one side of the spring is connected to the clamp ring, and the other side of the spring is connected to the inner wall of the first sleeve.

[0011] As a preferred technical solution of the present application, the inner wall of the first sleeve is connected to a circular plate, and the top of the insertion rod is in contact with the circular plate.

[0012] As a preferred technical solution of the present application, the surface of the rotating sleeve is fixedly connected with a plurality of protrusions, the bottom of the rotating sleeve is connected with a conical tube, and the insertion rod passes through the conical tube and is movably connected to the conical tube.

[0013] As a preferred technical solution of the present application, an adjustment mechanism is installed on the surface of the first sleeve, and the adjustment mechanism includes a second sleeve, which is sleeved on the surface of the first sleeve. The top of the circular plate is connected to a threaded rod, and the top of the threaded rod is threadedly sleeved with a threaded tube. The top of the threaded tube passes through the second sleeve and is connected to a rotating block.

[0014] As a preferred technical solution of the present application, a slide groove is provided on the surface of the first sleeve, a slider is connected to the inner wall of the second sleeve, the slider extends from a side away from the second sleeve to the inner cavity of the slide groove, and the slider is movably connected to the slide groove.

[0015] As a preferred technical solution of the present application, the threaded tube is connected to the second sleeve via a bearing, and the rotating block is movably connected to the second sleeve.

[0016] As a preferred technical solution of the present application, it includes a detection end, which is electrically connected to a three-dimensional monitoring module, a data processing module, an alarm module and a calibration prompt module. The detection end includes a handheld detector, and the three-dimensional monitoring module, data processing module, alarm module and calibration prompt module are installed on the handheld detector. A pressure sensor is installed on the surface of the insertion rod, and the detection end is electrically connected to the pressure sensor.

[0017] As the preferred technical solution of the present application, the three-dimensional monitoring module: uses a high-resolution camera and an image processing algorithm to capture the marking points and natural features on the corneal surface, and determines the three-dimensional position and posture of the cornea by calculating the position change in the three-dimensional space; the data processing module: is used to process the acquired data in real time, generate the three-dimensional position and posture information of the cornea, and transmit this information to the detector; the calibration prompt module: during the operation, the puncture knife position is calibrated through the standard reference point of the known position to ensure the positioning accuracy; once an abnormality is detected, a warning is immediately issued and corresponding corrective measures are taken;

[0018] The three-dimensional monitoring module includes the following steps:

[0019] S1. Capture corneal images: Use a high-resolution camera to capture images of the cornea and the surface of the puncture knife;

[0020] S2, extracting feature points: using image processing algorithms to extract marker points and natural features from cornea and puncture knife images;

[0021] S3, establishing a three-dimensional model: establishing a three-dimensional model of the cornea and the puncture knife based on the extracted feature points, and using computer vision technology to map the feature points in the two-dimensional image into a three-dimensional space;

[0022] S4. Calculate position changes: Track the position changes of the characteristic points of the puncture knife in three-dimensional space, and determine the three-dimensional position and posture of the puncture knife by calculating these position changes. If the position of the puncture knife deviates from the preset range value, the alarm module will alarm the operator.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] In the scheme of this application:

[0025] 1. In order to solve the problem that the depth of the knife body between the corneal layers is controlled by hand in the prior art, the greater the amplitude of the depth change of the knife body between the corneal layers, the greater the variation of the thickness values ​​of the anterior corneal plate layer and the posterior corneal plate layer, which affects the airtightness of the puncture port and is prone to cause postoperative intraocular infection, the present application facilitates the observation of the knife body tip moving between the corneal layers during the operation, and a gap is left between the knife body and the support arm. The anterior corneal plate layer is in this gap. As the knife tip moves in the corneal layer, the thickness of the anterior corneal plate layer is always kept consistent. By setting the rounded corners, the anterior corneal plate layer will not be damaged when puncturing into the eye. By effectively controlling the consistency of the interlayer depth of the knife body during the puncture process between the corneal layers, the airtightness of the surgical incision is improved, thereby reducing the infection rate after the operation and improving the safety of the operation;

[0026] 2. This application improves the stability of corneal puncture operation, reduces the chance of decreased airtightness and infection caused by irregular corneal puncture after surgery, and shortens the learning cycle of the operator;

[0027] 3. By setting the rotating sleeve, the wide mouth, the guide rod and the clamping ring, the two clamping rings can be moved relative to each other, and the insertion rod can be clamped and positioned by the clamping ring, and then the knife body can be positioned and installed, which improves the stability of the knife body and facilitates the disassembly of the knife body. The knife body of different specifications can be replaced according to the needs for surgery;

[0028] 4. By setting the second sleeve, threaded rod, threaded tube and rotating block, the second sleeve can be moved vertically, the depth of the first sleeve in the inner cavity of the second sleeve can be adjusted, and then the length between the first sleeve and the second sleeve can be adjusted, so that different people can use the puncture knife to perform surgical operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the overall structure of the corneal puncture knife provided in this application;

[0030] Figure 2 A schematic diagram of the cross-sectional structure of the corneal puncture knife provided in this application;

[0031] Figure 3 A schematic diagram of a partial cross-sectional structure of a corneal puncture knife provided in this application;

[0032] Figure 4 Schematic diagram of the structure of the handheld detector of the corneal puncture knife provided in this application.

[0033] Indicated in the figure:

[0034] 1. Cutter body; 2. Support arm; 3. Limit plate; 4. Chamfered corners; 5. Insert rod; 6. First sleeve; 7. Positioning mechanism; 70. Rotating sleeve; 71. Wide mouth cover; 72. Guide rod; 73. Clamp ring; 74. Spring; 75. Round plate; 76. Bump; 77. Conical tube; 8. Adjustment mechanism; 80. Second sleeve; 81. Threaded rod; 82. Threaded tube; 83. Rotating block; 84. Slide; 85. Slider; 9. Handheld detector; 10. Three-dimensional monitoring module; 11. Data processing module; 12. Alarm module; 13. Calibration prompt module. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme 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 only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] As described in the background technology, the depth of the blade between the corneal layers is controlled by hand feel. The greater the amplitude of the depth change of the blade between the corneal layers, the greater the variation in the thickness values ​​of the anterior and posterior corneal layers, which affects the airtightness of the puncture port and easily causes intraocular infection after surgery.

[0037] In order to solve this technical problem, the present invention provides a corneal puncture knife, which is applied to the field of surgical instruments.

[0038] Specifically, please refer to Figure 1A corneal puncture knife comprises a knife body 1, a support arm 2 is connected to the right side of the knife body 1, a limit plate 3 is fixedly connected to the left side of the support arm 2, the limit plate 3 is parallel to the knife body 1, a gap is arranged between the knife body 1 and the support arm 2, a chamfer 4 is arranged on the left side of the limit plate 3, an insertion rod 5 is connected to the top of the support arm 2, and a first sleeve 6 is sleeved on the surface of the insertion rod 5.

[0039] The present application facilitates observation of the tip of the blade 1 moving between the corneal layers during surgery. A gap is left between the blade 1 and the support arm 2. The anterior corneal plate layer is within this gap. As the blade tip moves within the corneal layer, the thickness of the anterior corneal plate layer is always kept consistent. By setting the chamfered corner 4, the anterior corneal plate layer will not be damaged when puncturing into the eye. By effectively controlling the consistency of the interlayer depth of the blade 1 during the puncture process between the corneal layers, the airtightness of the surgical incision is improved, thereby reducing the infection rate after surgery and improving the safety of the surgery.

[0040] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0042] 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.

[0043] Example 1, please refer to Figure 1 A corneal puncture knife comprises a knife body 1, a support arm 2 is connected to the right side of the knife body 1, a limit plate 3 is fixedly connected to the left side of the support arm 2, the limit plate 3 is parallel to the knife body 1, a gap is arranged between the knife body 1 and the support arm 2, a chamfer 4 is arranged on the left side of the limit plate 3, an insertion rod 5 is connected to the top of the support arm 2, and a first sleeve 6 is sleeved on the surface of the insertion rod 5.

[0044] By setting the limit plate 3 to be a transparent material, the front end length of the limit plate 3 is smaller than the length of the blade body 1, which makes it easy to observe the tip of the blade body 1 moving between the corneal layers during the operation. A gap is left between the blade body 1 and the support arm 2, and the anterior corneal plate layer is in this gap. As the blade tip moves in the corneal layer, the thickness of the anterior plate layer is always kept consistent. By setting the chamfered corner 4, the anterior corneal plate layer will not be damaged when puncturing into the eye. By effectively controlling the consistency of the interlayer depth of the blade body 1 during the puncture process between the corneal layers, the airtightness of the surgical incision is improved, thereby reducing the infection rate after the operation and improving the safety of the operation.

[0045] Embodiment 2 further optimizes the corneal puncture knife provided in embodiment 1, specifically, Figure 1 , Figure 2 and Figure 3 As shown, a positioning mechanism 7 is installed on the surface of the first sleeve 6, and the positioning mechanism 7 includes a rotating sleeve 70, which is threadedly sleeved on the surface of the first sleeve 6, and the top of the rotating sleeve 70 is connected to a wide mask 71, and the inner cavity of the wide mask 71 is provided with a guide rod 72, one side of the guide rod 72 is in contact with the inner wall of the wide mask 71, and the other side of the guide rod 72 passes through the inner cavity of the first sleeve 6 and is connected with a clamp ring 73.

[0046] By providing the rotating sleeve 70, the wide housing 71, the guide rod 72 and the clamping ring 73, the two clamping rings 73 can be moved relative to each other, and the insertion rod 5 can be clamped and positioned by the clamping ring 73, and then the knife body 1 can be positioned and installed, thereby improving the stability of the knife body 1 and facilitating the disassembly of the knife body 1. The knife body 1 of different specifications can be replaced according to needs for surgery.

[0047] The inner wall of the clamp ring 73 contacts the insertion rod 5 , and a spring 74 is sleeved on the surface of the guide rod 72 . One side of the spring 74 is connected to the clamp ring 73 , and the other side of the spring 74 is connected to the inner wall of the first sleeve 6 .

[0048] The guide rod 72 is provided to guide the clamp ring 73, which is convenient for the lateral movement of the clamp ring 73. At the same time, the clamp ring 73 can be pressed against to fix the insertion rod 5. The spring 74 is provided to connect the clamp ring 73, which is convenient for the clamp ring 73 to return to its original position.

[0049] A circular plate 75 is connected to the inner wall of the first sleeve 6 , and the top of the insertion rod 5 contacts the circular plate 75 .

[0050] By providing the circular plate 75 , the top of the insertion rod 5 is limited and the insertion rod 5 is supported at the same time, so that the positioning and installation of the insertion rod 5 is facilitated.

[0051] The surface of the rotating sleeve 70 is fixedly connected with a plurality of protrusions 76 . The bottom of the rotating sleeve 70 is connected with a tapered tube 77 . The insertion rod 5 passes through the tapered tube 77 and is movably connected with the tapered tube 77 .

[0052] By providing the tapered tube 77 , the insertion rod 5 is supported and guided, and the insertion rod 5 can be smoothly inserted between the two clamping rings 73 during installation.

[0053] An adjusting mechanism 8 is installed on the surface of the first sleeve 6, and the adjusting mechanism 8 includes a second sleeve 80, which is sleeved on the surface of the first sleeve 6. A threaded rod 81 is connected to the top of the circular plate 75, and a threaded tube 82 is threadedly sleeved on the top of the threaded rod 81. The top of the threaded tube 82 passes through the second sleeve 80 and is connected to a rotating block 83.

[0054] By providing the second sleeve 80, the threaded rod 81, the threaded tube 82 and the rotating block 83, the second sleeve 80 can be moved vertically, and the depth of the first sleeve 6 in the inner cavity of the second sleeve 80 can be adjusted, thereby adjusting the length between the first sleeve 6 and the second sleeve 80, so as to facilitate different groups of people to use the puncture knife for surgical operations. By providing the rotating block 83, the contact area with the hand is increased, so that it is convenient to drive the threaded tube 82 to rotate.

[0055] A slide groove 84 is formed on the surface of the first sleeve 6 , and a slider 85 is connected to the inner wall of the second sleeve 80 . The slider 85 extends from a side away from the second sleeve 80 to the inner cavity of the slide groove 84 , and the slider 85 is movably connected to the slide groove 84 .

[0056] The second sleeve 80 is guided by providing the slide groove 84 and the slider 85 , so as to facilitate the vertical movement of the second sleeve 80 .

[0057] The threaded tube 82 is connected to the second sleeve 80 via a bearing, and the rotating block 83 is movably connected to the second sleeve 80 .

[0058] The threaded tube 82 is supported by providing a bearing, so that the threaded tube 82 can rotate stably.

[0059] The use process of the corneal puncture knife provided by the present invention is as follows:

[0060] Replace the cutter body 1: rotate the rotating sleeve 70 and thread it with the first sleeve 6, so that the rotating sleeve 70 drives the wide cover 71 to move downward, the wide cover 71 is separated from the guide rod 72, and the spring 74 pulls the clamp ring 73 to move, so that the clamp ring 73 is separated from the insertion rod 5, and the insertion rod 5 is pulled out of the first sleeve 6, and the cutter body 1 is replaced;

[0061] Adjusting the length: rotating the rotating block 83 drives the threaded tube 82 to rotate. The threaded tube 82 is threadedly connected to the threaded rod 81, so that the threaded tube 82 drives the second sleeve 80 to move, and the combined length of the first sleeve 6 and the second sleeve 80 is adjusted to facilitate use by different groups of people.

[0062] Please refer to Figure 4 Embodiment 3, a corneal puncture knife, including a detection end, the detection end is electrically connected with a three-dimensional monitoring module 10, a data processing module 11, an alarm module 12 and a calibration prompt module 13, the detection end includes a handheld detector 9, the three-dimensional monitoring module 10, the data processing module 11, the alarm module 12 and the calibration prompt module 13 are installed on the handheld detector 9, a pressure sensor is installed on the surface of the insertion rod 5, and the detection end is electrically connected to the pressure sensor.

[0063] The pressure sensor detects the pressure applied by the puncture knife during the puncture process and feeds back to the detection end. If the pressure exceeds a preset range, an alarm is sounded through the alarm module 12 to prompt the operator.

[0064] Three-dimensional monitoring module 10: uses a high-resolution camera and image processing algorithm to capture the markers and natural features on the corneal surface, and determines the three-dimensional position and posture of the cornea by calculating the position change in three-dimensional space; data processing module 11: is used to process the acquired data in real time, generate the three-dimensional position and posture information of the cornea, and transmit this information to the detector; calibration prompt module 13: during the operation, the puncture knife position is calibrated through the standard reference point at a known position to ensure the positioning accuracy; once an abnormality is detected, a warning is immediately issued and corresponding corrective measures are taken;

[0065] During the operation, one hand holds the handheld detector 9, and the three-dimensional monitoring module 10 is aimed at the cornea to collect data. The other hand holds the puncture knife to perform the operation. If an abnormal data deviation is detected, the alarm module 12 immediately issues a warning to prompt the operator.

[0066] The three-dimensional monitoring module 10 includes the following steps:

[0067] S1. Capture corneal images: Use a high-resolution camera to capture images of the cornea and the surface of the puncture knife;

[0068] S2, extracting feature points: using image processing algorithms to extract marker points and natural features from cornea and puncture knife images;

[0069] S3, establishing a three-dimensional model: establishing a three-dimensional model of the cornea and the puncture knife based on the extracted feature points, and using computer vision technology to map the feature points in the two-dimensional image into a three-dimensional space;

[0070] S4. Calculate position changes: Track the position changes of the characteristic points of the puncture knife in the three-dimensional space, and determine the three-dimensional position and posture of the puncture knife by calculating these position changes. If the position of the puncture knife deviates from the preset range value, the alarm module 12 will alarm the operator.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A corneal puncture knife, characterized in that: The invention comprises a blade body (1), the right side of the blade body (1) is connected to a support arm (2), the left side of the support arm (2) is fixedly connected to a limit plate (3), the limit plate (3) is parallel to the blade body (1), a gap is provided between the blade body (1) and the support arm (2), a chamfer (4) is provided on the left side of the limit plate (3), the top of the support arm (2) is connected to an insertion rod (5), and the surface of the insertion rod (5) is sleeved with a first sleeve (6).

2. A corneal puncture knife according to claim 1, characterized in that: A positioning mechanism (7) is installed on the surface of the first sleeve (6), and the positioning mechanism (7) comprises a rotating sleeve (70), the rotating sleeve (70) is threadedly sleeved on the surface of the first sleeve (6), the top of the rotating sleeve (70) is connected to a wide housing (71), the inner cavity of the wide housing (71) is provided with a guide rod (72), one side of the guide rod (72) contacts the inner wall of the wide housing (71), and the other side of the guide rod (72) passes through the inner cavity of the first sleeve (6) and is connected to a clamp ring (73).

3. A corneal puncture knife according to claim 2, characterized in that: The inner wall of the clamp ring (73) contacts the insertion rod (5), and a spring (74) is sleeved on the surface of the guide rod (72). One side of the spring (74) is connected to the clamp ring (73), and the other side of the spring (74) is connected to the inner wall of the first sleeve (6).

4. A corneal puncture knife according to claim 3, characterized in that: The inner wall of the first sleeve (6) is connected to a circular plate (75), and the top of the insertion rod (5) is in contact with the circular plate (75).

5. A corneal puncture knife according to claim 4, characterized in that: The surface of the rotating sleeve (70) is fixedly connected with a plurality of protrusions (76); the bottom of the rotating sleeve (70) is connected with a conical tube (77); the insertion rod (5) passes through the conical tube (77) and is movably connected to the conical tube (77).

6. A corneal puncture knife according to claim 5, characterized in that: An adjusting mechanism (8) is installed on the surface of the first sleeve (6), and the adjusting mechanism (8) comprises a second sleeve (80), and the second sleeve (80) is sleeved on the surface of the first sleeve (6). The top of the circular plate (75) is connected to a threaded rod (81), and the top of the threaded rod (81) is threadedly sleeved with a threaded tube (82), and the top of the threaded tube (82) passes through the second sleeve (80) and is connected to a rotating block (83).

7. A corneal puncture knife according to claim 6, characterized in that: A slide groove (84) is provided on the surface of the first sleeve (6), and a slider (85) is connected to the inner wall of the second sleeve (80). The slider (85) extends from a side away from the second sleeve (80) to the inner cavity of the slide groove (84), and the slider (85) is movably connected to the slide groove (84).

8. A corneal puncture knife according to claim 7, characterized in that: The threaded tube (82) is connected to the second sleeve (80) via a bearing, and the rotating block (83) is movably connected to the second sleeve (80).

9. A corneal puncture knife according to claim 8, characterized in that: The invention comprises a detection end, which is electrically connected to a three-dimensional monitoring module (10), a data processing module (11), an alarm module (12) and a calibration prompt module (13), and the detection end comprises a handheld detector (9). The three-dimensional monitoring module (10), the data processing module (11), the alarm module (12) and the calibration prompt module (13) are installed on the handheld detector (9). A pressure sensor is installed on the surface of the insertion rod (5), and the detection end is electrically connected to the pressure sensor.

10. A corneal puncture knife according to claim 9, characterized in that: Three-dimensional monitoring module (10): using a high-resolution camera and image processing algorithm to capture the markers and natural features on the corneal surface, and determining the three-dimensional position and posture of the cornea by calculating the position change in three-dimensional space; data processing module (11): used to process the acquired data in real time, generate three-dimensional position and posture information of the cornea, and transmit this information to the detector; calibration prompt module (13): during the operation, through the standard reference point of known position, to calibrate the position of the puncture knife to ensure the positioning accuracy; once an abnormality is detected, a warning is immediately issued and corresponding corrective measures are taken; The three-dimensional monitoring module (10) comprises the following steps: S1. Capture corneal images: Use a high-resolution camera to capture images of the cornea and the surface of the puncture knife; S2, extracting feature points: using image processing algorithms to extract marker points and natural features from cornea and puncture knife images; S3, establishing a three-dimensional model: establishing a three-dimensional model of the cornea and the puncture knife based on the extracted feature points, and using computer vision technology to map the feature points in the two-dimensional image into a three-dimensional space; S4, calculating position changes: tracking the position changes of the characteristic points of the puncture knife in three-dimensional space, and determining the three-dimensional position and posture of the puncture knife by calculating these position changes. If the position of the puncture knife deviates from the preset range value, an alarm is issued through the alarm module (12) to prompt the operator.

Images