An adjustable depth lacrimal probe

Abstract

The utility model discloses a kind of tear duct probe of adjustable depth, it is related to tear duct probe technical field, including handle, the handle bottom is perforated and fixedly installed with outer tube, sliding installation is carried out in the outer tube outer wall with barrier block, two guide rods are fixedly installed in the top of barrier block, the other end of two The guide rod is perforated and is slidably connected with handle, the upper end between two The guide rod is fixedly installed with slider, second scale line, second scale line is fixedly installed on the outer wall of outer tube, the arc surface of second scale line and outer tube flush.The utility model, by controlling motor forward rotation or reverse rotation, so that screw rod is driven under the drive of motor will drive slider to rise or drop, then through the transmission of two guide rods, so that barrier block rises or drops along outer tube, again cooperate the blocking of barrier block, to control the depth of outer tube insertion to tear duct, in the process of needle insertion, second scale line can be observed, so that the depth of needle insertion can be accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of lacrimal duct probe technology, and in particular to an adjustable-depth lacrimal duct probe. Background Technology

[0002] A lacrimal duct probe is a medical device used to examine and treat lacrimal duct obstruction or stenosis. It is mainly used in the diagnosis and treatment of ophthalmic and nasolacrimal duct-related diseases.

[0003] In existing technologies, when medical staff perform probe examinations on the lacrimal duct, they generally rely on the image presented by a micro-aperture camera and their medical experience to manually control the needle insertion depth. This method cannot precisely control the needle insertion depth, and if an operational error occurs, it can easily lead to injury to the lacrimal duct. Furthermore, when dealing with different individuals (such as adults and children), since the lacrimal duct depth varies, there is a risk of inserting the needle too deeply if the maximum insertion depth is not controlled. Existing lacrimal duct probes do not have this function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an adjustable-depth lacrimal duct probe, which solves the problem of not being able to precisely control the insertion depth. If the operation is incorrect, the lacrimal duct can easily be punctured. Furthermore, when dealing with different individuals (such as adults and children), the lacrimal duct depth varies. If the maximum insertion depth is not controlled, there is a risk of inserting too deeply. Existing lacrimal duct probes do not have this function.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable-depth lacrimal duct probe includes a handle, an outer tube that is inserted through and fixedly installed at the bottom of the handle, a blocking block that is slidably installed on the outer wall of the outer tube, two guide rods that are fixedly installed at the top of the blocking block, the other ends of the two guide rods that are inserted through and slidably connected to the handle, and a slider that is fixedly installed between the upper ends of the two guide rods.

[0007] The second scale line is fixedly installed on the outer wall of the outer tube, and the second scale line is flush with the arc surface of the outer tube;

[0008] A drive assembly, which is mounted on the handle and is used to drive the slider to move up and down;

[0009] An illumination assembly is mounted at one end of an outer tube and is used to emit a light beam into the inner hole of the outer tube.

[0010] Preferably, the driving component includes:

[0011] A motor is fixedly mounted on the other end of the handle. The output end of the motor passes through the handle, and a lead screw is fixedly mounted on the output end of the motor. The lead screw passes through and is threadedly connected to the slider.

[0012] Preferably, the lighting assembly includes:

[0013] A lampshade is fixedly installed at one end of an outer tube, and multiple LED lights are fixedly installed on the inner wall of the top of the lampshade.

[0014] Preferably, an adjusting wheel is threadedly installed through the lower end of the lead screw.

[0015] Preferably, the outer wall of the front side of the handle has a window, and a first scale line is fixedly installed on the outer wall of the window.

[0016] Preferably, a light guide crystal is fixedly installed on the inner wall of the outer tube.

[0017] Preferably, a probe head is fixedly installed at the other end of the outer tube, and the probe head is made of the same material as the light guide crystal.

[0018] Preferably, a micro camera is fixedly installed on the inner wall of the probe head.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] First, the maximum safe depth of insertion into the lacrimal duct can be set according to the individual differences between adults and children. Then, by pushing the adjusting wheel to rotate, the height of the adjusting wheel changes, so that the slider can be limited to the lowest position of the lead screw, thereby limiting the length of the outer tube exposed through the barrier block. Then, by having the barrier block stick to the skin of the human body, the maximum safe depth of insertion of the outer tube into the lacrimal duct is limited, avoiding excessive insertion due to operational errors.

[0021] Second, during the rotation of the adjusting wheel, you can observe the position of the first scale line pointed to by the adjusting wheel to make it easier to grasp the maximum safe needle depth.

[0022] Third, by controlling the motor to rotate forward or backward, the lead screw will drive the slider to rise or fall under the motor's drive. Then, through the transmission of the two guide rods, the blocking block will rise or fall along the outer tube. With the blocking block's obstruction, the depth of the outer tube inserted into the lacrimal duct can be controlled. During the needle insertion process, the second scale line can be observed to grasp the needle insertion depth, thus enabling precise control of the needle insertion depth and avoiding manual control of the needle insertion depth, which may lead to excessive insertion and damage to the lacrimal duct. Attached Figure Description

[0023] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a bottom view of the overall structure of this utility model;

[0026] Figure 3 This is a cross-sectional view of the handle in this utility model;

[0027] Figure 4 This is a cross-sectional view of the combined structure of the lampshade, outer tube, light guide crystal, and probe head in this utility model.

[0028] Legend: 1. Handle; 2. Motor; 3. Control button; 4. First scale line; 5. Adjustment wheel; 6. Outer tube; 7. Second scale line; 8. Probe head; 9. Barrier block; 10. Guide rod; 11. Micro camera; 12. Slider; 13. Lampshade; 14. LED light; 15. Light guide crystal; 16. Lead screw. Detailed Implementation

[0029] This application provides an adjustable-depth lacrimal duct probe, which effectively solves the problem of not being able to accurately control the insertion depth. If the operation is wrong, the lacrimal duct can easily be punctured. Secondly, when dealing with different individuals (such as adults and children), since the lacrimal duct depth is different, if the maximum insertion depth is not controlled, there is a risk of inserting too deeply. Existing lacrimal duct probes do not have this function.

[0030] Example

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application effectively solves the problem of not being able to accurately control the needle insertion depth. If an operational error occurs, the lacrimal duct can easily be injured. Secondly, when dealing with different individuals (such as adults and children), the lacrimal duct depth varies. If the maximum needle insertion depth is not controlled, there is a risk of inserting too deeply. Existing lacrimal duct probes do not have this function. The overall approach is as follows:

[0032] To address the problems existing in the prior art, this utility model provides an adjustable-depth lacrimal duct probe, including a handle 1, an outer tube 6 that is inserted through and fixedly installed at the bottom of the handle 1, a blocking block 9 that is slidably installed on the outer wall of the outer tube 6, two guide rods 10 that are fixedly installed at the top of the blocking block 9, the other ends of the two guide rods 10 that are inserted through and slidably connected to the handle 1, and a slider 12 that is fixedly installed between the upper ends of the two guide rods 10.

[0033] The second scale line 7 is fixedly installed on the outer wall of the outer tube 6, and the second scale line 7 is flush with the arc surface of the outer tube 6.

[0034] A drive assembly is mounted on the handle 1 and is used to drive the slider 12 to move up and down.

[0035] An illumination assembly is mounted at one end of the outer tube 6 and is used to emit a light beam into the inner hole of the outer tube 6.

[0036] Furthermore, the driving components include:

[0037] Motor 2 is fixedly installed at the other end of handle 1. The output end of motor 2 passes through handle 1. A lead screw 16 is fixedly installed at the output end of motor 2. The lead screw 16 passes through and is threadedly connected to slider 12.

[0038] Furthermore, the lighting components include:

[0039] The lampshade 13 is fixedly installed at one end of the outer tube 6, and multiple LED lights 14 are fixedly installed on the inner wall of the top of the lampshade 13.

[0040] Furthermore, an adjusting wheel 5 is threaded through and threaded onto the lower end of the lead screw 16, and the edges of the adjusting wheel 5 on both sides pass through the handle 1.

[0041] Furthermore, a window is provided on the outer wall of the front side of the handle 1, and a first scale line 4 is fixedly installed on the outer wall at the window of the handle 1.

[0042] Furthermore, a light guide crystal 15 is fixedly installed on the inner wall of the outer tube 6.

[0043] Furthermore, a probe head 8 is fixedly installed at the other end of the outer tube 6.

[0044] Furthermore, a micro camera 11 is fixedly installed on the inner wall of the probe head 8, and the lens end of the micro camera 11 is flush with the lower end of the probe head 8.

[0045] in:

[0046] Handle 1: It is an alloy rectangular shell with rectangular windows on the front and back sides to facilitate the rotation of the adjustment wheel 5. A miniature relay is installed on the shell. The relay is connected to the motor 2 and the control button 3 by wires to control the forward and reverse rotation of the motor 2.

[0047] Motor 2: It is a miniature DC servo motor, and its output end is connected to one end of the lead screw 16 through a coupling;

[0048] Control button 3: This is a momentary control switch, connected to motor 2 by wires. It works with a relay to control the forward and reverse rotation of motor 2. It is glued to the handle 1 so that medical staff can adjust the needle insertion depth by pressing control button 3.

[0049] The first scale line 4 is formed by laser engraving on the surface of the handle 1. The scale line is marked with the distance length value and unit, so as to make it easy to observe the maximum safe needle insertion depth.

[0050] Adjusting wheel 5: It is an alloy disc with evenly distributed grooves on the outer ring to facilitate the rotation of the adjusting wheel 5. A threaded hole is provided in the middle to facilitate threaded connection with the lead screw 16.

[0051] Outer tube 6: It is an alloy round tube with a smooth, non-angular surface, and is sterilized with ethylene oxide before use;

[0052] The second scale line 7 is formed by laser engraving on the surface of the outer tube 6. The surface is polished smooth, and the scale line is marked with the distance length value and unit, so as to make it easy to observe the needle insertion depth.

[0053] Probe head 8: A solid object in the shape of a hood, using a quartz crystal as the light guiding medium;

[0054] Barrier block 9: A solid silicone rubber block shaped like a rugby ball, with through holes on the surface for installing the outer tube 6, used for ethylene oxide sterilization;

[0055] Guide rod 10: It is an alloy rod and serves to link the blocking block 9 and the slider 12. It is vertically slidably installed at the bottom of the handle 1 and has a threaded hole at the top.

[0056] Micro Camera 11: This is a miniature camera with smooth edges, and its connection to the probe head 8 is seamless.

[0057] Slider 12: It is an alloy metal strip with threaded holes at both ends. It is connected to the guide rod 10 by bolts, and both ends are connected to the sliding groove on the inner side wall of the handle 1.

[0058] Lampshade 13: It is a plastic column cap shaped and is glued to the end face of the outer tube 6. A through hole is opened in the middle of the top for inserting and connecting the circuit of the micro camera 11.

[0059] LED lamp 14: It is a high-lumen LED chip, which is glued to the hole wall at the top of the lamp cover 13. The projection direction of the light is parallel to the axis of the outer tube 6.

[0060] Light guide crystal 15: A quartz crystal is used as the light guide medium and is bonded to the inner wall of the outer tube 6, and is seamlessly connected to the end face of the probe head 8.

[0061] Lead screw 16: It is an alloy small-pitch lead screw to facilitate high-precision control of the rising or falling position of slider 12.

[0062] Working principle:

[0063] The first step is to set the maximum safe insertion depth into the lacrimal duct based on individual differences between adults and children. Then, by pushing the adjusting wheel 5 to rotate, the adjusting wheel 5 moves up or down along the lead screw 16, so that the slider 12 can be limited to the lowest position of the lead screw 16, thereby limiting the length of the outer tube 6 exposed through the barrier block 9. The barrier block 9 is then attached to the skin of the human body to limit the maximum safe insertion depth of the outer tube 6 into the lacrimal duct, avoiding excessive insertion due to operational errors. During the rotation of the adjusting wheel 5, the position of the first scale line 4 pointed to by the adjusting wheel 5 can be observed to facilitate the control of the maximum needle insertion depth.

[0064] The second step involves pressing the two control buttons 3 and using the relay to control the forward and reverse rotation of the motor 2. When the motor 2 rotates forward or in reverse, the lead screw 16 drives the slider 12 to rise or fall under the drive of the motor 2. Then, through the transmission of the two guide rods 10, the blocking block 9 rises or falls along the outer tube 6. With the blocking block 9, the depth of the outer tube 6 inserted into the lacrimal duct can be controlled. During the needle insertion process, the second scale line 7 can be observed to determine the needle insertion depth.

[0065] In the third step, during the process of inserting the probe head 8 and the outer tube 6 into the lacrimal duct, the LED light 14 is activated, and then a light beam is projected onto the light guide crystal 15 inside the outer tube 6. The light guide crystal 15 conducts the light and the probe head 8 refracts the light, illuminating the lacrimal duct so that the micro camera 11 can capture images of the inside of the lacrimal duct.

[0066] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An adjustable-depth lacrimal duct probe, characterized in that, include: A handle (1) has an outer tube (6) that is fixedly installed through the bottom of the handle (1). A blocking block (9) is slidably installed on the outer wall of the outer tube (6). Two guide rods (10) are fixedly installed on the top of the blocking block (9). The other ends of the two guide rods (10) are slidably connected through the handle (1). A slider (12) is fixedly installed between the upper ends of the two guide rods (10). The second scale line (7) is fixedly installed on the outer wall of the outer tube (6), and the second scale line (7) is flush with the arc surface of the outer tube (6); A drive assembly is mounted on the handle (1) and is used to drive the slider (12) to move up and down; An illumination assembly is mounted at one end of an outer tube (6) and is used to emit a light beam into the inner hole of the outer tube (6).

2. The adjustable-depth lacrimal duct probe as described in claim 1, characterized in that, The driving component includes: The motor (2) is fixedly installed at the other end of the handle (1). The output end of the motor (2) passes through the handle (1). A lead screw (16) is fixedly installed at the output end of the motor (2). The lead screw (16) passes through and is threadedly connected to the slider (12).

3. The adjustable-depth lacrimal duct probe as described in claim 1, characterized in that, The lighting assembly includes: A lampshade (13) is fixedly installed at one end of an outer tube (6), and multiple LED lights (14) are fixedly installed on the inner wall of the top of the lampshade (13).

4. The adjustable-depth lacrimal duct probe as described in claim 2, characterized in that: The lower end of the lead screw (16) is threaded with an adjusting wheel (5), and the edge portions on both sides of the adjusting wheel (5) pass through the handle (1).

5. The adjustable-depth lacrimal duct probe as described in claim 1, characterized in that: A window is provided on the outer wall of the front side of the handle (1), and a first scale line (4) is fixedly installed on the outer wall of the window of the handle (1).

6. The adjustable-depth lacrimal duct probe as described in claim 1, characterized in that: A light guide crystal (15) is fixedly installed on the inner wall of the outer tube (6).

7. The adjustable-depth lacrimal duct probe as described in claim 1, characterized in that: A probe head (8) is fixedly installed at the other end of the outer tube (6).

8. The adjustable-depth lacrimal duct probe as described in claim 7, characterized in that: A micro camera (11) is fixedly installed on the inner wall of the probe head (8), and the lens end of the micro camera (11) is flush with the lower end of the probe head (8).

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